Abstrict Plates, of steel or other suitable material and which are appropriately
sized, are welded together to form a fabricated swing jaw body for
a jaw type crusher. The barrel, disposed proximate the upper extremity
of the swing jaw body and which houses the bearings and shaft that
operate the swing jaw, is formed either: from a continuous plate
rolled into a cylinder of proper size and welded into the swing
jaw body; from a number of plates welded to each other and to the
swing jaw body to form therewith a cylinder like enclosure for said
bearings and shaft; or from a number of plates with openings formed
therethrough and stacked and welded one against the other and to
said swing jaw body to form said enclosure. A piece of non-rectangular
bar stock is secured proximate the bottom of the swing jaw body
and has formed therein a seat for the toggle plate mechanism of
the crusher jaw. Various cross bracings are welded within, outside,
or within and outside said steel plates to secure and strengthen
same; while a backing plate or backing strips are also welded thereto
to provide additional strength and securing means.
Claims We claim:
1. A composite swing jaw for a crusher; comprising:
(a) a first plate member having an upper area and a lower area
with a face surface and a rear surface extending therebetween;
(b) a plurality of main rib members positioned and disposed to
extend outwardly from said rear surface of said first plate member
and sized to extend between an upper location proximate said upper
area and a lower location proximate said lower area;
(c) barrel means, formed from a plurality of plate members secured
together and to said first plate member to form with said first
plate member a barrel like enclosure with an opening through which
the shaft for operating the swing jaw passes, having an outer peripheral
surface disposed in proximity to said first plate member proximate
said upper area thereof and to said main rib members proximate said
upper location; and
(d) securing means rigidly interconnecting said first plate member,
said plurality of main rib members, and said barrel means into a
composite whole.
2. A composite swing jaw for a crusher; comprising:
(a) a first plate member having an upper area and a lower area
with a face surface and a rear surface extending therebetween;
(b) a plurality of main rib members positioned and disposed to
extend outwardly from said rear surface of said first plate member
and sized to extend between an upper location proximate said upper
area and a lower location proximate said lower area;
(c) barrel means, formed from a plurality of ring-like members
concentrically disposed and secured one adjacent to the other to
form an opening through which the shaft for operating the swing
jaw passes, having an outer peripheral surface disposed in proximity
to said first plate member proximate said upper area thereof and
to said main rib members proximate said upper location; and
(d) securing means rigidly interconnecting said first plate member,
said plurality of main rib members, and said barrel means into a
composite whole.
3. The method of forming a crusher swing jaw; comprising:
(a) forming a first plate member with an upper area and a lower
area and with a face surface and a rear surface extending therebetween,
and with a pair of side edges;
(b) forming a plurality of rib members from plate like material
and sized to correspond to the distance between said upper and lower
areas;
(c) positioning said plurality of rib like members so that each
one extends outwardly from said rear surface and between said upper
and said lower areas;
(d) forming barrel means from a plurality of plate members welded
together into a barrel-like configuration to receive the shaft for
operating the swing jaw, and with an outer peripheral surface disposed
proximate said first plate member proximate said upper area thereof
and disposed proximate at least some of said rib member proximate
an upper location thereof; and
(e) securing said first plate member, said plurality of rib members,
and said barrel member together to form the swing jaw.
4. The method of forming a crusher swing jaw; comprising:
(a) forming a first plate member with an upper area and a lower
area and with a face surface and a rear surface extending therebetween,
and with a pair of side edges;
(b) forming a plurality of rib members from plate like material
and sized to correspond to the distance between said upper and lower
areas;
(c) positioning said plurality of rib like members so that each
one extends outwardly from said rear surface and between said upper
and said lower areas;
(d) forming barrel means from a plurality of ring-like members
disposed adjacent one another so that their respective rings are
concentric and with such ring-like members secured together to receive
the shaft for operating the swing jaw, and with an outer perhipheral
surface disposed proximate said first plate member proximate said
first plate member proximate said upper area thereof and disposed
proximate at least some of said rib members proximate an upper location
thereof; and
(e) securing said first plate member, said plurality of rib member,
and said barrel member together to form the swing jaw.
5. A composite swing jaw for a crusher; comprising:
(a) a first plate member having an upper area and a lower area
with a face surface and a rear surface extending therebetween;
(b) a plurality of main rib members positioned and disposed to
extend outwardly from said rear surface of said first plate member
and sized to extend between an upper location proximate said upper
area and a lower location proximate said lower area;
(c) fabricated barrel means, formed from plate material into a
barrel configuration with an opening through which the shaft for
operating the swing jaw passes, having an outer peripheral surface
disposed in proximity to said first plate member proximate said
upper area thereof and to said main rib members proximate said upper
location; and
(d) said first plate member, said plurality of main rib members,
and said barrel means being secured by weldments into a composite
whole.
6. A composite swing jaw for a crusher; comprising:
(a) a first plate member having an upper area and a lower area
with a face surface and a rear surface extending therebetween;
(b) a plurality of main rib members positioned and disposed to
extend outwardly from said rear surface of said first plate member
and sized to extend between an upper location proximate said upper
area and a lower location proximate said lower area;
(c) barrel means, formed from a plate of material rolled into a
substantially cylindrical configuration and welded together with
an opening through which the shaft for operating the swing jaw passes,
having an outer peripheral surface disposed in proximity to said
first plate member proximate said upper area thereof and to said
main rib members proximate said upper location; and
(d) said first plate member, said plurality of main rib members,
and said barrel means being secured by weldments into a composite
whole.
7. The swing jaw of claim 1 including a plurality of support plates
secured within said barrel like enclosure to strengthen same.
8. The swing jaw of claim 1 wherein said securing means comprises
a plurality of welds securing said plurality of main ribs to said
first plate member, and said barrel means to said first plate member.
9. The swing jaw of claim 2 wherein:
(a) a first one of said main rib members is sized to extend adjacent
one side of said barrel means and has formed therein an aperture
sized to conform to and so as to be in alignment with the apertures
in said ring-like members; and
(b) a second one of said main rib members is sized to extend adjacent
the otherside of said barrel means and has formed therein an aperture
sized to conform to and so as to be in alignment with, the apertures
in said ring-like members.
10. The swing jaw of claim 9 including a plurality of support ribs
disposed between said main ribs and welded thereto.
11. The swing jaw of claim 10 wherein said main rib members are
disposed inwardly of respective edges of said first plate member.
12. The swing jaw of claim 11 including external cross bracing
members welded to said first plate member and said main rib members
proximate said edges of said first plate member.
13. The swing jaw of claim 1 including a first impact plate secured
to said first plate member proximate said upper area and a second
impact plate secured to said first impact plate and to at least
one of said plurality of plate members forming said barrel like
enclosure to assist in so forming said barrel like enclosure.
14. The swing jaw of claim 5 including:
(a) a second plate member positioned and disposed adjacent at least
some of said plurality of main rib members to sandwich the main
rib members so disposed between a predetermined surface of said
second plate member and said first plate member;
(b) said second plate member extending from proximate said upper
location to a position proximate said lower location; and
(c) additional weldments for rigidly interconnecting said second
plate members and some of said plurality of main rib members.
15. The swing jaw of claim 5 including:
(a) a first impact plate secured to said first plate member proximate
said upper area; and
(b) a second impact plate secured to said first impact plate;
(c) said first impact plate and said second impact plate being
disposed proximate said barrel means to protect same from material
to be crushed when deposited in the crusher.
16. The swing jaw of claim 5 including a toggle plate seat support
member secured proximate said lower location, said toggle plate
seat support being formed from bar stock of circular cross-sectional
configuration and into which is formed a groove of pre-determined
size and configuration to receive a toggle seat.
17. The swing jaw of claim 1 including a toggle plate seat support
member secured proximate said lower location; said toggle plate
seat support member being formed from bar stock of circular cross-sectional
configuration and into which is formed a groove of pre-determined
size and configuration to receive a toggle seat.
18. The swing jaw of claim 1 including:
(a) a second plate member positioned and disposed adjacent at least
some of said plurality of main rib members to sandwich the main
rib members so disposed between a predetermined surface of said
second plate member and said first plate member;
(b) said second plate member extending from proximate said upper
location to a position proximate said lower location; and
(c) additional securing means for rigidly interconnecting said
second plate members and some of said plurality of main rib members.
19. The swing jaw of claim 18 wherein:
(a) said main rib members include a centrally disposed main rib
member; and
(b) said second plate member includes a plurality of spaced holes
extending therethrough and aligned with said centrally disposed
main rib member;
(c) said second plate member being secured to said centrally disposed
main rib member by welding side surfaces of said holes to the adjacent
area of said main rib members.
20. The swing jaw of claim 18 wherein said second plate member
is of first predetermined side to side dimension proximate said
upper location and of a second predetermined side to side dimension
proximate said lower location; said second predetermined side to
side dimension is greater than said first predetermined side to
side dimension; and a toggle plate seat support member secured proximate
said lower location and being of a side to side extent which proximates
said second predetermined side to side dimension.
21. The swing jaw of claim 6 including a toggle plate seat support
member secured proximate said lower location; said toggle plate
seat support member being formed from bar stock of circular cross-sectional
configuration and into which is formed a groove of predetermined
size and configuration to receive a toggle seat.
22. The swing jaw of claim 6 including:
(a) a second plate member positioned and disposed adjacent at least
some of said plurality of main rib members to sandwich the main
rib members so disposed between a predetermined surface of said
second plate member and said first plate member;
(b) said second plate member extending from proximate said upper
location to a position proximate said lower location; and
(c) additional securing means for rigidly interconnecting said
second plate members and some of said plurality of main rib members.
23. The swing jaw of claim 22 wherein:
(a) said main rib members include a centrally disposed main rib
member; and
(b) said second plate member includes a plurality of spaced holes
extending therethrough and aligned with said centrally disposed
main rib members;
(c) said second plate member being secured to said centrally disposed
main rib member by welding side surfaces of said holes to the adjacent
area of said main rib members.
24. The swing jaw of claim 22 wherein said second plate member
is of a first predetermined side to side dimension proximate said
upper location and of a second predetermined side to side dimension
proximate said lower location; said second predetermined side to
side dimension is greater than said first predetermined side to
side dimension; and a toggle plate seat support member secured proximate
said lower location and being of a side to side extent which proximates
said second predetermined side to side dimension.
25. The swing jaw of claim 2 wherein said securing means comprises
a plurality of welds securing said plurality of main ribs to said
first plate member, and said barrel means to said first plate member.
26. The swing jaw of claim 2 including a toggle plate seat support
member secured proximate said lower location; said toggle plate
seat support member is formed from bar stock of circular cross-sectional
configuration and into which is formed a groove of predetermined
size and configuration to receive a toggle seat.
27. The swing jaw of claim 2 including:
(a) a second plate member positioned and disposed adjacent at least
some of said plurality of main rib members to sandwich the main
rib members so disposed between a predetermined surface of said
second plate member and said first plate member;
(b) said second plate member extending from proximate said upper
location to a position proximate said lower location; and
(c) additional securing means for rigidly interconnecting said
second plate members and some of said plurality of main rib members.
28. The swing jaw of claim 27 wherein:
(a) said main rib members include a centrally disposed main rib
member; and
(b) said second plate member includes a plurality of spaced holes
extending therethrough and aligned with said centrally disposed
main rib member;
(c) said second plate member being secured to said centrally disposed
main rib member by welding side surfaces of said holes to the adjacent
area of said main rib members.
29. The method of forming a crusher swing jaw; comprising:
(a) forming a first plate member with an upper area and a lower
area and with a face surface and a rear surface extending therebetween,
and with a pair of side edges;
(b) forming a plurality of rib members from plate-like material
and sized to correspond to the distance between said upper and lower
areas;
(c) positioning said plurality of rib-like members so that each
one extends outwardly from said rear surface and between said upper
and lower areas;
(d) fabricating barrel means from plate material formed into a
barrel-like configuration to receive the shaft for operating the
swing jaw, and with an outer peripheral surface disposed proximate
said first plate member proximate said upper area thereof and disposed
proximate at least some of said rib members proximate an upper location
thereof; and
(e) securing said first plate member, said plurality of rib members,
and said barrel member together by a plurality of weldments to form
the swing jaw.
30. The method of forming a crusher swing jaw; comprising:
(a) forming a first plate member with an upper area and a lower
area and with a face surface and a rear surface extending therebetween,
and with a pair of side edges;
(b) forming a plurality of rib members from plate-like material
and sized to correspond to the distance between said upper and lower
areas;
(c) positioning said plurality of rib-like members so that each
one extends outwardly from said rear surface and between said upper
and said lower areas;
(d) forming barrel means from plate stock rolled and welded into
cylindrical configuration and to receive the shaft for operating
the swing jaw, and with an outer peripheral surface disposed proximate
said first plate member proximate said upper area thereof and disposed
proximate at least some of said rib members proximate an upper location
thereof; and
(e) securing said first plate member, said plurality of rib members,
and said barrel member together by a plurality of weldments to form
the swing jaw.
31. The method of claim 30 including:
(a) forming a toggle seat support member from bar stock of circular
cross-sectional configuration;
(b) securing said toggle seat support member in place proximate
said lower area; and
(c) forming a toggle seat groove in a predetermined surface of
said toggle seat support member.
32. The method of claim 3 including forming a part of said barrel
by including a portion of said upper area of said first plate member
in said barrel means.
33. The method of claim 30 wherein said cylindrical configuration
is open ended.
34. The method of claim 4 wherein said ring-like members are secured
by welding.
35. The method of claim 29 including:
(a) forming a second plate member; and
(b) securing said second plate member to said rib members so as
to sandwich said rib members between said first and said second
plate members.
36. The method of claim 35 wherein said second plate member is
formed with a side to side dimension at an end thereof proximate
said toggle seat member that is wider than the side to side dimension
of said second plate member at its opposite end.
Description BACKGROUND OF THE INVENTION
1. Field of Application
This invention relates to crusher jaws and more particularly to
the swing jaw of a jaw type crusher.
2. Description of Prior Art
After rock, ore, and similar materials have been mined the pieces
thereof are usually of mixed sizes, some of which might be extremely
large. As such these materials are usually processed through suitable
crushing equipment to reduce their size to one which can be more
conveniently transported and/or to a size which is best suited for
further processing toward the intended end use. One well known type
of crusher is a jaw type crusher. In this equipment the material
to be crushed is desposited between a pair of jaw members; one of
which moves towards and away from the other. The jaws are mounted
so that the spacing between them is greater at the material entrance
and narrows towards the opening where the crushed material exits
the crusher. Thus the movement of the movable jaw acts upon material
lodged between the jaws to break up the material and reduce its
size. As the size is thus reduced the material drops further down
into the narrowing space between the jaws, until it exits the crusher
at the intended size.
Commercially available jaw type crushers such as those shown in
U.S. Pat. Nos. 1608561 and 3804345 cast the movable or swing
jaw from suitable materials. However, casting requires a considerable
investment in plant and labor if the crusher manufacturer desires
to control his own supply of crusher jaws. If his output is too
small to fully utilize the casting plant the operation becomes quite
inefficient and costly. Quality control also presents considerable
problems.
The cost of plant and labor (and hopefully of the jaws) may be
reduced by relying upon vendors who operate casting plants to supply
the swing jaw. Here again, quality control becomes a problem. In
addition, depending upon the demands of the marketplace, obtaining
castings, with reasonable lead times, has sometimes presented considerable
problems. Also shipping of such casting adds to the cost thereof
and at times presents serious complications especially for the larger
swing jaws.
Some attempts have been made to alleviate these problems by fabricating
the part of the swing jaw below the barrel which houses the bearings
and shaft. In such equipment, however, the barrel with attendant
support structures are still cast and the welding thereof to the
remainder of the swing jaw body is accomplished along a plane through
the assembly.
Most swing jaws have mounted proximate their lower extremities
a toggle seat for co-operation with a toggle mechanism utilized
to adjust the position of the lower end of the swing jaw with respect
to the lower end of its opposing jaw. This controls the size of
the spacing between the jaws, the exit opening and the material
being crushed. Generally as shown in equipment such as that shown
in the previously mentioned U.S. Pat. Nos. 1608561 and 3804345
a space must be machined into the casting to accept the toggle seat.
Alternatively, as shown in U.S. Pat. No. 2453596 a rectangular
bar is secured to the casting to receive the seat. There is extreme
loading at the toggle seat area; and the stresses so created tend
to concentrate and induce failure at the sharp corners of such prior
art constructions.
SUMMARY OF THE INVENTION
It is therefore an object of this invention to provide a new and
improved crusher swing jaw.
It is a further object to provide a new and improved fabricated
crusher swing jaw.
Another object is to provide a new and improved method of forming
a crusher swing jaw.
Still another object is to provide a new and improved crusher swing
jaw substantially fabricated from plates.
Yet still another object is to provide a new and improved crusher
swing jaw fabricated from plates but with a rolled barrel.
A still further object is to provide a new and improved crusher
swing jaw wherein the jaw body and the barrel are fabricated entirely
from plate material.
Yet a still further object is to provide a new and improved crusher
swing jaw having a toggle bearing seat fabricated from bar stock
of non-rectangular cross-section.
This invention involves the manufacture of the swing jaw member
of a jaw type crusher; and contemplates the fabrication thereof
from plate steel, or other suitable material, secured together as
by welding to form the main body of the swing jaw for attachment
to a barrel that is either rolled from a single plate, fabricated
from multiple plates, forged or cast. It further contemplates the
fabrication into such swing jaw of a toggle seat support formed
from bar stock of non-rectangular configuration.
Other objects, features, and advantages of the invention in its
details of construction and arrangement of parts will be seen from
the above, from the following description of the preferred embodiment
when considered with the drawings and from the appended claims.
BRIEF DESCRIPTION OF THE DRAWING
In the drawings:
FIG. 1 is a front perspective showing of a jaw type crusher incorporating
the instant invention;
FIGS. 2a and 2b is a vertical section showing a fabricated swing
jaw with a fabricated barrel installed in the crusher of FIG. 1;
and are to be joined together along the indicated "match line"
to form a composite figure;
FIG. 3 is a view of the back (the side opposite the crushing face)
of the swing jaw of FIG. 2;
FIG. 4 is a sectional view taken on line 4--4 of FIG. 3;
FIG. 5 is a sectional view, broken away, of a modified fabricated
swing jaw and showing a rolled barrel incorporated therein and a
modified system of cross-bracing;
FIG. 6 is a view of the back (the side opposite the crushing face)
of the swing jaw of FIG. 5;
FIG. 7 is a sectional view taken on line 7--7 of FIG. 6;
FIG. 8 is a view of the back of yet another modified fabricated
swing jaw formed with a barrel fabricated from apertured plates
and incorporating still another form of cross-bracing;
FIG. 9 is a sectional view taken on line 9--9 of FIG. 8;
FIG. 10 is a sectional view similar to that of FIG. 9 but showing
an alternative form of cross-bracing; and
FIG. 11 is yet another view similar to that of FIGS. 9 and 10 and
showing still another form of cross-bracing.
DESCRIPTION OF THE PREFERRED EMBODIMENT
For convenience, the invention will be described as applied to
the swing jaw of a jaw type crusher fabricated from relatively heavy
steel plates welded together to form the swing jaw body and having
welded thereto a barrel formed either from a rolled steel plate,
from a plurality of steel plates welded into a barrel-like configuration,
or from a plurality of stacked apertured steel plates, and also
having welded thereto a toggle seat member formed from a bar of
stock of circular cross-section; it being understood, nevertheless,
that without departing from the scope of this invention that other
suitable materials may be used, that the plates may be secured together
by any suitable and appropriate means, that the toggle seat member
may be of any convenient but non-rectangular cross-section, and
that the barrel may be forged or cast.
With reference to FIG. 1 there is generally shown at 20 a jaw
type crusher including a frame 22 having a front wall 24 a pair
of opposed and spaced side walls 26 28 and a rear wall 30 (FIG.
2) all interconnected into a box-like structure generally open at
its top 32 and bottom 34.
A main shaft 40 is disposed for rotation in a conventional manner
in a plurality of bearings 41 (FIG. 2) in suitable housings 42
44 (FIG. 1) disposed atop walls 26 28 respectively. Additional
bearings (not shown) further support shaft 40 within a barrel portion
50 of a swing jaw 52 and serve to mount swing jaw 52 for its conventional
reciprocating motion. This reciprocating motion is accomplished
because the portion of shaft 50 within barrel 52 is eccentric in
crosssectional configuration, as is common for such shafts.
A flywheel 56 (FIG. 1) is secured to one end of shaft 40; while
a grooved flywheel or pulley 58 is secured to the other end of shaft
40. Suitable drive means (not shown), such as a gasoline or diesel
engine, are provided for crusher 20 with appropriate drive transmission
means (not shown) connecting same to pulley 58 to rotate same and
shaft 40 to thereby operate swing jaw 52.
The inside wall 70 of front wall 24 acts as the stationary jaw
for crusher 20 coacting with swing jaw 52 in a substantially conventional
manner. A stationary wear member 72 of manganese or other suitable
material, is secured to wall 70 by being supported upon a shoulder
74 formed at the base thereof and by coaction with a threaded securing
means 76 which passes through front wall 24.
A movable wear member 80 (FIGS. 1 and 2) is disposed upon swing
jaw 52 and so as to be in opposed relationship with stationary wear
member 72 to act in conjunction therewith and crush therebetween
rocks deposited into opening 32 of crusher 20. Movable wear member
80 rests upon a shoulder 82 formed proximate a bottom edge 84 of
a front or crushing face plate 86 of swing jaw 52. An upper edge
90 is secured in place against face plate 86 by threaded securing
means 92 (FIGS. 2 and 3). A number of ribs 94 (FIG. 4) are formed
on the crushing side of face plate 86 to further support movable
wear member 80 (FIG. 2).
A right side main rib 100 (FIGS. 3 and 4) and a left side main
rib 102 are welded to and extend back from a rear surface 104 of
face plate 86; and, along with a central main rib 106 also welded
to and extending back from face panel 86 serve to strengthen and
support face plate 86. A backing plate 110 (FIGS. 3 and 4) is also
welded to right side main rib 100 left side main rib 102 and central
main rib 106 and forms therewith and with face plate 86 a box-like
main structural body 112 for fabricated swing jaw 52. A plurality
of apertures 120 (FIGS. 3 and 4) are formed through backing plate
110 to facilitate welding of backing plate 110 to central main rib
106; such welding being accomplished by welding the sides of apertures
120 to the exposed surface of central main rib 106.
A plurality of internal cross-bracing members 130 and 132 are respectively
welded in place between main ribs 100 and 106 and 102 and 106 to
further strenghen structural body 112; while a plurality of external
cross-bracing members 140 and 142 are respectively welded in place
between face plate 86 backing plate 110 and main rib 100 and
face plate 86 backing plate 110 and main rib 102 to add additional
support and strength for swing jaw body 52.
A lower impact plate 150 is secured, as by welding, proximate the
top of face plate 86 and below an upper impact plate 152 secured,
as by welding, at the upper extremity of jaw body 52. Plates 150
and 152 are of very heavy stock so that when swing jaw body 52 is
disposed in frame 22 impact plates 150 and 152 are positioned to
receive the impact of rocks dropping into crusher 20 and to protect
barrel 50 and shaft 40 and bearings 41 therein. A plurality of barrel
plates 160 162 164 and 166 (FIG. 2) are welded to each other;
with barrel plate 160 also welded to the rear surface of impact
plate 152 and barrel plate 166 also welded to the rear surface of
face plate 86 proximate the upper extremity thereof. Barrel plates
160 162 164 and 166 thus co-operate with impact plate 152 and
face plate 86 to form therewith the enclosure which constitutes
barrel 50.
Right side rib 100 extends the full length of swing jaw body 52
(FIGS. 2 and 3) and is formed with an upper portion 170 disposed
to the side of barrel 50. An aperture 172 of appropriate size is
formed in upper portion 170 in alignment with barrel 50. Left side
main rib 102 extends the full length of swing jaw body 52 (FIG.
3) and is formed with an upper portion 174 disposed to the other
side of barrel 50. An aperture (not shown) of appropriate size is
formed in upper portion 172 in alignment with barrel 50. Right side
main rib 100 and left side main rib 102 are also welded to their
respective side extremities of barrel 50 and as such further strengthen
same and swing jaw body 52. The upper extremity of central main
rib 106 is welded to plates 164 and 166 of barrel 50. It should
be further noted that the upper extremity of backing plate 110 is
welded to barrel plate 164 and that backing plate 110 extends therefrom
to terminate proximate a lower extremity 180 (FIGS. 2 and 3) of
swing jaw 52. Side edges 184 186 of backing plate 110 taper outwardly
from the upper extremity of backing plate 110 to the lower extremity
thereof as is clearly shown in FIG. 3. This adds additional strength
to swing jaw body 52. Further strength is provided by the use of
support plates 188 disposed within barrel 50.
A toggle plate bar 190 is welded proximate lower extremity 180
of swing jaw body 52 to the lower extremity of backing plate 110
and to the number of support bars 192 194 (FIG. 2) disposed at
that location. A groove 196 is machined into bar 190 to receive
a seat 198 for toggle plate 200 of a toggle assembly 202 of substantially
conventional construction. Also disposed proximate lower extremity
180 of swing jaw body 52 are bottom plates 204 having apertures
206 formed therethrough to receive a pin 208 of a tension rod assembly
210 also of substantially conventional construction.
It should be noted that bar 190 is circular in crosssection and
that this greatly facilitates welding same into position at lower
extremity 180 of jaw body 52. If a bar of rectangular cross section
were to be used welding same into place would be more difficult
and the straight sides and corners create areas of dangerous stress
concentrations. While a bar of circular cross section has been selected
for this embodiment it should be understood that bars of other non-rectangular
cross section (such as hexagonal) would also serve the purpose and
facilitate welding at this position.
Swing jaw body 52 is thus substantially formed from plate stock;
each plate having a thickness and size depending upon the overall
dimensions of crusher 20. The plates and other components of jaw
body 52 are welded together, some by slag type welding process,
or are otherwise secured together to form a highly strengthened
unit having many characteristics more favorable then units formed
as castings of with substantial cast elements.
When swing jaw body 52 is disposed in crusher 20 bearings 41 and
shaft 40 may be properly positioned to mount the upper extremity
of swing jaw body 52 for reciprocatory movement in the directions
of arrows A and B of FIG. 2. This is effected by providing a conventional
drive for main shaft 40 and due to the eccentricity of said shaft
40. When so reciprocating swing jaw body 52 pivots about toggle
plate 200 in conventional manner, with tension rod assembly 210
maintaining the pivoting relationship at toggle assembly 202. If
it is desired to adjust the size of product leaving opening 34 one
need only loosen nut 220 of tension rod assembly 210 and operate
toggle adjustment assembly 202 by the use of control lever 222 thereof.
This will effect movement of toggle plate 200 in either the direction
of arrow X (FIG. 2) (to enlarge opening 34) or in the direction
of arrow Y to close same. After opening 34 has been set to the desired
size nut 220 is again tightened to secure the setting.
In the embodiment of FIGS. 5 6 and 7 there is shown a swing jaw
300 that may be substituted for swing jaw 52 of the embodiment of
FIGS. 1-4. When so substituted swing jaw 300 functions in the same
manner as swing jaw 52.
Swing jaw 300 includes a front crushing face plate 302 with a plurality
of ribs 304 secured to the crushing side thereof in spaced relationship
one to the other for the purpose of assisting in the support and
positioning on plate 302 of a movable wear member (not shown) similar
in configuration to wear member 80 of swing jaw 52 and otherwise
secured to plate 302 in a manner similar to that which wear member
80 is secured to swing jaw 52.
A right side main rib 310 (FIGS. 6 and 7) and a left side main
rib 312 are welded to and extend back from a rear surface 314 of
face plate 302; and, along with a central main rib 316 also welded
to and extending back from face plate 302 serve to strengthen and
support face plate 302. A backing plate 320 is also welded to right
side main rib 310 left side main rib 312 and central main rib 316
and form therewith, and with face plate 302 a box-like main structural
body 322 for fabricated swing jaw 300. A plurality of apertures
330 (FIGS. 6 and 7) are formed through backing plate 320 to facilitate
welding of backing plate 320 to central main rib 316; such welding
being accomplished by welding the sides of apertures 330 to the
exposed surface of central main rib 316.
A plurality of internal cross-bracing members 340 and 342 are respectively
welded in place between main ribs 310 and 316 and 312 and 316 to
further strengthen structural body 322.
A lower impact plate 350 is secured, as by welding, proximate the
top of face plate 302 and below an upper impact plate 352 secured,
as by welding, at the upper extremity of jaw body 300. Plates 350
and 352 are of very heavy stock so that when swing jaw body 300
is disposed in a frame, such as frame 22 impact plates 350 and
352 are positioned to received the impact of rocks dropping into
crusher 20 and to protect a barrel 360 and the shaft (not shown)
and bearings (not shown) housed therein and which facilitate the
reciprocating action of swing jaw 300 in a manner similar to that
of swing jaw 52.
Barrel 360 is preferably rolled from plate steel of appropriate
thickness; with the seam 362 welded to form a cylindrical barrel
having opening 364 of proper diameter for the shaft and bearings.
Barrel 360 may also be forged or cast. A pair of barrel supports
366 368 also formed of plate steel are each formed of two rib
sections 366A, 366B and 368A, 368B respectively. Ribs 366B, 368B
are curved to lie against the outer wall of barrel 360 and are welded
thereagainst and in alignment with the upper extremities of right
side main rib 310 and left side main rib 312 respectively. To the
extent that ribs 366B and 368B lie proximate the upper extremity
of backing plate 310 they may also be welded thereto. Ribs 366A
and 368A are also shaped to fit against the outer surface of barrel
360 and are sized to extend from ribs 366B and 368B into engagement
with the rear surface of impactor plate 352. Ribs 366A and 368A
are secured to ribs 366B, 368B, outer surface of barrel 360 and
the rear surface of impactor plate 352 by welding or the like. If
desired apertures 369 may be formed through ribs 366A, 368A proximate
the upper ends thereof to serve as lifting ends to facilitate lifting
swing jaw 300 when installing same into, and removing same from,
the crusher.
It should be noted that right side main rib 310 and left side main
rib 318 spread or flare outwardly and downwardly towards the lower
extremity 370 of swing jaw 300 from where they are secured to end
plates 366 and 368 proximate the upper area of swing jaw 300. In
similar manner the side edges 372 374 of backing plate 320 also
spread or taper outwardly from proximate barrel 360 at the upper
area of swing jaw 300 to the end of backing plate 320 proximate
lower area 370 of swing jaw 300. The added width of backing plate
320 and the associated spread of right side main rib 310 and left
side main rib 312 at lower area 370 serve to provide a strengthened
support for a toggle plate bar 380 similar in configuration and
purpose to toggle plate bar 190 of the embodiment of FIGS. 1-4.
A single set of bottom plates 390 having apertures 392 facilitate
interconnection of swing jaw 300 to a tension rod assembly (not
shown) in a manner and for a purpose similar to that described for
tension rod assembly 210 of the embodiment of FIGS. 1-4.
Swing jaw 300 is positioned and secured into a crusher (like crusher
20) like swing jaw 52; and when so disposed functions like swing
jaw 52.
A further alternative construction for a fabricated swing jaw 400
is shown in FIGS. 8 and 9. In this embodiment the barrel 402 (which
houses the shaft and bearings) is formed from a stack of relatively
thick ring like steel plates 410 412 414 and 416 each having
an aperture 420 422 424 and 426 respectively cut therethrough
so that when plates 410 412 414 and 416 are stacked said apertures
are aligned to form a cylindrical opening 430 for the shaft and
bearings. Plates 410 412 414 and 416 are secured together into
said stack by welding or other suitable means.
Barrel 402 is secured to an impactor plate 440 and to a front or
crusher face plate 442 by welding and in a manner similar to that
described for the previous embodiments. Plate 442 carries a plurality
of spaced ribs 443 which facilitate mounting of the movable wear
member (not shown) that is otherwise secured in place as described
earlier for wear member 80 of jaw 52. A central main rib 444 a
right side main rib 446 and a left side main rib 448 are all welded
to the rear surface 450 of plate 442 and extend back therefrom.
A plurality of cross ribs 460 462 are welded in place between right
side main rib 446 and central main rib 444 and between left side
main rib 448 and central main rib 444 respectively to further strengthen
jaw 400.
It should be noted that right side main rib 446 and left side main
rib 448 extend up proximate plates 410 and 416 respectively of barrel
402 to complete barrel 402. As such apertures 480 and 482 are cut
through ribs 446 and 448 respectively in alignment with opening
430 to complete same to a size to accommodate the shaft and bearings.
The inclusion of full length ribs 446 448 into the stack forming
barrel 402 adds great strength thereto. If desired lifting eyes
490 may be disposed proximate the upper extremity of swing jaw
400 to facilitate insertion thereof and removal therefrom from a
crusher.
Once installed swing jaw 400 functions in a manner as hereinbefore
described for the swing jaw of the other embodiments.
In FIG. 10 the swing jaw fabrication 600 is shown with a front
plate 602 a backing plate 604 interconnected by a central main
rib 606 a right side main rib 608 and a left side main rib 610;
all welded together to form a unitary structure as described for
the swing jaws hereinabove described. Swing jaw 600 includes inside
cross ribs 620 622 and outside cross ribs 630 632 all welded
in place at selected locations for added strength.
In FIG. 11 there is shown a swing jaw 700 with a front plate 702
having a right side main rib 704 and a left side main rib 706 welded
to the rear face thereof and extending backwardly therefrom. A central
main rib 708 is also welded to the rear face of plate 702 and extends
back therefrom. It should be noted that central main rib 708 is
not as thick as right side main rib 704 and left side main rib 706
which are of equal thickness. A number of cross ribs 710 712 are
welded outside of ribs 704 and 706 and to the rear surface of plate
702 in selected places to further strengthen jaw 700. |