Abstrict A mobile crusher device has a track-laying chassis having drive
wheels and tracks guided about the drive wheels. A frame is supported
on the chassis. A crusher tool is connected to the frame. A drive
apparatus for driving the crusher tool is connected to the frame.
A conveyor belt for transporting material crushed by the crusher
tool away from the crusher tool is connected to the frame. The frame
has a horizontal pivot axis extending parallel to the axes of the
drive wheels. The frame is pivotable about the pivot axis together
with the crusher tool, the drive apparatus, and the conveyor belt
connected to the frame. A semitrailer kingpin arrangement is connected
to the frame on a first side of the frame. A fastening device for
fastening a trolley to the mobile crusher device is connected to
a second side of the frame opposite the first side.
Claims What is claimed is:
1. A mobile crusher device comprising: a track-laying chassis having
drive wheels and tracks guided about the drive wheels; a frame supported
on the chassis; a crusher tool connected to the frame; a drive apparatus
configured to drive the crusher tool and connected to the frame;
a conveyor belt, configured to transport material crushed by the
crusher tool away from the crusher tool, connected to the frame;
the frame having a horizontal pivot axis extending parallel to the
axes of the drive wheels, wherein the frame is pivotable about the
pivot axis together with the crusher tool, the drive apparatus,
and the conveyor belt connected to the frame; a semitrailer kingpin
arrangement connected to the frame on a first side of the frame;
a fastening device, configured to fasten a trolley to the mobile
crusher device, connected to a second side of the frame opposite
the first side.
2. The mobile crusher device according to claim 1 wherein the
crusher tool comprises a pair of substantially vertical crusher
plates configured to swing toward one another.
3. The mobile crusher device according to claim 1 wherein the
kingpin arrangement comprises a kingpin.
4. The mobile crusher device according to claim 1 wherein the
kingpin arrangement comprises a kingpin support member.
5. The mobile crusher device according to claim 1 wherein the
fastening device comprises bearing plates.
6. The mobile crusher device according to claim 1 wherein the
kingpin arrangement comprises a kingpin support member, pivotably
connected to the frame; a kingpin connected to the kingpin support
member; and at least one support link or piston-cylinder unit supporting
the kingpin support member in a working position during transport.
7. The mobile crusher device according to claim 1 further comprising
a feed hopper connected to the frame, wherein the feed hopper is
located at the first side of the frame.
8. The mobile crusher device according to claim 1 wherein the
conveyor belt has a dumping end located at the second side of the
frame.
9. The mobile crusher device according to claim 1 wherein the
trolley has two axles.
10. The mobile crusher device according to claim 1 wherein the
fastening device has an attachment point for the trolley and wherein
the attachment point and the horizontal pivot axis are spaced from
one another by a distance of at least 2.5 m.
11. The mobile crusher device according to claim 10 wherein the
distance is at least 2.8 m.
12. The mobile crusher device according to claim 1 wherein the
kingpin arrangement and the fastening device are located at opposite
ends of the track-laying chassis in a travel direction of the track-laying
chassis.
Description BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a mobile crusher device with a track-laying
chassis, a frame supported on the track-laying chassis, on which
a motor-operated crusher tool, for example, in the form of crusher
plates arranged in pairs in a substantially upright arrangement
and swinging against one another, and at least one drive apparatus
for the crusher tool are provided, and with a conveyor belt for
transporting the crushed material away, wherein the frame as a whole
and with the devices supported thereon is pivotable about a horizontal
axis which is parallel to the axes of the wheels of the track-laying
chassis. Moreover, the invention relates to a method for transporting
such a crusher device.
2. Description of the Related Art
Such a mobile crusher device is known from European patent application
0 923 991 A1. The pivotability of the frame relative to the track-laying
chassis in this device is provided in order to lift the frame and
to make accessible the high-stress machine parts of the crusher
device subjected to considerable wear, for example, the conveyor
belt, directly from below to the mounting and service personnel.
The mounting and service labor can therefore be carried out with
considerable time savings in comparison to known devices.
Mobile crusher devices with track-laying chassis are extremely
large and heavy. At the respective site of use, they are movable
by their track-laying chassis. However, these track-laying chassis
are not suitable for transportation on roads. Crusher devices of
this kind are therefore conventionally transported within public
traffic areas on low-bed semitrailer trucks with special permits
and accompanied by escort vehicles. Such a transportation stresses
the traffic areas not only by the enormous weight of the crusher
device itself but also by the great weight of the low-bed semitrailer
trucks that are being used.
In European patent application 0 547 440 B1 measures have already
been proposed to configure a crusher device with a track-laying
chassis such that it can be transported in public traffic areas
without low-bed semitrailer trucks. For this purpose, on opposite
sides of the frame, relative to the track-laying chassis, a feed
hopper for the material to be crushed is pivotably arranged by means
of a first piston-cylinder unit and, opposite thereto, a pivotable
frame for the conveyor belt is pivotably arranged by means of a
second piston-cylinder unit. A kingpin of a semitrailer coupling
is provided on the underside of the pivotable feed hopper, and bearing
plates for connecting a trolley are arranged on the underside of
the pivotable frame for the conveyor belt. By lowering the pivotable
frame for the conveyor belt, a trolley having preferably three axles
can be connected to the bearing plates. Subsequently, the kingpin
is lowered by pivoting the feed hopper onto the semitrailer coupling
of a semitrailer tractor and inserted into it. By further loading
the two aforementioned piston-cylinder units, the central part of
the mobile crusher device is lifted so that the track-laying chassis
is positioned above the ground. Now the crusher device can be transported
like a semitrailer truck.
Even though this type of transportation of the crusher device provides
a significant improvement in comparison to the transportation of
the known crusher devices by means of a low-bed semitrailer truck,
the configuration of the feed hopper and of the frame of the conveyor
belt so as to be pivotable by piston-cylinder units, requiring that
these parts must be designed to be correspondingly strong, results
in a considerable construction expenditure.
SUMMARY OF THE INVENTION
It is an object of the present invention to allow the mobile crusher
device to be transported like a semitrailer truck and to provide,
in comparison to the crusher device of European patent application
0 547 440 B1 a simplified configuration.
In accordance with the present invention, this is achieved for
a crusher device of the aforementioned kind in that on the frame,
on opposite sides of the frame relative to the track-laying chassis,
a kingpin of a semitrailer coupling, respectively, a support member
of a kingpin is arranged on one side and a device, preferably in
the form of bearing plates, for fastening a trolley, is arranged
on the other side. The method according to the invention is characterized
in that: in a first step, the piston-cylinder unit is moved somewhat
relative to the completely retracted initial position wherein a
fastening device for fastening a trolley, positioned on the side
of the frame opposite the piston cylinder unit relative to the track-laying
chassis and formed preferably by bearing plates, is lowered, and
a trolley is connected to this device; in a further step, the piston-cylinder
unit is extended farther, wherein the part of the track-laying chassis
adjacent to the trolley is lifted and, at the same time, a kingpin
of a semitrailer coupling, located at the same side of the frame
as the piston-cylinder unit relative to the track-laying chassis,
is lifted; and, in a further step, the semitrailer tractor is moved
underneath the kingpin and the piston-cylinder unit is again retracted
so that the track-laying chassis is completely lifted off the ground.
The principle of the invention thus resides in that it is possible,
by means of the measures according to the invention, to realize
a transportation in the way of a semitrailer truck for a pivotable
configuration of the frame with the advantages mentioned in European
patent application 0 923 911 A1 but without having to provide further
pivotable parts of the kind disclosed in European patent application
0 547 440 B1. Accordingly, smaller and more lightweight crusher
devices than those described in European patent application 0 547
440 B1 can be produced in an inexpensive way so as to be transportable
like a semitrailer truck, and there is still a considerable simplification
provided relative to the transportation on a low-bed semitrailer
truck. For example, the crusher device according to the invention
can have a weight in the area of approximately 30 metric tons.
Preferably, the kingpin is supported by a kingpin support member
which is pivotably connected by bearing plates to the frame. The
kingpin support member is supported by one or more links in its
working position during transportation. During operation of the
crusher device at the respective site of use, the links can be removed
and the kingpin support member can be tilted upwardly and placed
against the frame so that the space requirement of the crusher device
is reduced.
A crusher device with a track-laying chassis, which can be transported
by means of a trolley and a semitrailer tractor on public traffic
areas, is already known from WO 99/49976. Piston-cylinder units
are provided for lifting the crusher device. As a result, a trolley
can be moved underneath the crusher device and can be connected
to the crusher device by means of bearing plates. On the side opposite
the track-laying chassis a kingpin of a semitrailer coupling is
provided which is connected with the coupling plate of the semitrailer
coupling of a semitrailer tractor. A disadvantage of this device
is that, after lifting of the crusher device by means of the piston-cylinder
units, the crusher device is no longer movable. Accordingly, the
trolley must be moved. However, especially in the case of uneven
and unpaved surfaces, as is usually the case at locations of use
of such crusher devices, this is not easily possible. Moreover,
after moving the trolley under the crusher device, the height of
the bearing plates must be adjusted by a corresponding adjustment
of the piston-cylinder units in order to make possible the connection
with the trolley. The process of coupling the trolley to the crusher
device is thus relatively complicated, and additional piston-cylinder
units are required for lifting the crusher device.
Further advantages and details of the invention will be explained
in the following with the aid of the embodiment illustrated in the
attached drawing.
BRIEF DESCRIPTION OF THE DRAWING
In the drawing:
FIG. 1 shows in a simplified illustration a side view of the mobile
crusher device according to the invention in an operating position;
FIG. 2 shows in a simplified illustration a side view of the mobile
crusher device of FIG. 1 in the position in which the trolley is
connectable to the frame;
FIG. 3 shows in a simplified illustration a side view of the mobile
crusher device according to FIG. 1 with lifted kingpin;
FIG. 4 shows in a simplified illustration a side view of the mobile
crusher device in the transport position.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
The crusher device has a track-laying chassis 1 which has two frame
parts 2 spaced apart from one another, which, viewed at a right
angle to the plane of FIGS. 1 through 4 are positioned behind one
another. These two frame parts 2 are connected to one another by
transverse beams. At the end faces of the two frame parts 2 deflection
or drive wheels 5 and 6 are provided, respectively, about which
the track 7 is guided.
This track-laying chassis 1 supports a frame 8 with a feed hopper
9 with crusher plates 10 and a drive apparatus 11 for the operation
of the crusher plates 10. Furthermore, a conveyor belt 12 is provided
which is also connected to the frame 8 and whose material-receiving
end extends under the frame 8 preferably to a point under the crusher
plates 10. The crusher plates 10 are essentially upright. One of
the two plates of the crusher tool is supported stationarily on
the frame 8 the other plate carries out swinging movements so that
this plate is periodically moved back and forth relative to the
stationary plate. Such a crusher tool is known and therefore must
not be disclosed in more detail at this point. The use of any other
known crusher tool, for example, an impact crusher mill, is also
possible.
Below the feed hopper 9 and also partially underneath the drive
apparatus 11 the frame 8 is limited in the downward direction by
a substantially straight contour 13 which at the side facing away
from the feed hopper 9 extends downwardly for the purpose of forming
bearing plates and thus forms a type of bracket or plate 14. In
the operating position of the crusher device, this straight contour
13 is substantially horizontal (FIG. 1) and above the track-laying
chassis 1.
The downwardly extending bracket 14 of the frame 8 is secured on
the track-laying chassis 1 such that the frame 8 has a whole can
be pivoted about the pivot axis 15 with all of the devices supported
on it. This pivot axis 15 is thus positioned within the track-laying
chassis 1 having the two frame parts 2. The pivot axis 15 is positioned
close to one of the deflection or drive wheels 6.
At the side of the frame 8 facing away from the pivot axis 15
a piston-cylinder unit 16 is provided which is positioned between
the two frames 2 of the track-laying chassis 1 and whose one end
17 is secured on the frame 8. The connecting point of the piston-cylinder
unit 16 on the frame 8 is laterally positioned relative to the track-laying
chassis 1 i.e., relative to its steering axis. The frame 8 projects
on both sides past the track-laying chassis 1.
The connecting point of the piston-cylinder unit 16 on the track-laying
chassis 1 is positioned below an imaginary horizontal plane which
includes the axes of the deflection or drive wheels 5 6 of the
track-laying chassis 1.
The feed hopper 9 and the dumping end 18 of the conveyor belt,
relative to the track-laying chassis, are positioned on opposite
sides of the frame 8. The portion of the conveyor belt 12 adjacent
to the dumping end 18 is supported by a frame 19 which is pivotably
supported on the frame 8. By means of a tension cable 20 the height
of the dumping end can be changed by pivoting the frame 19 relative
to the frame 8.
At the side of the track-laying chassis 1 on which the frame 19
of the conveyor belt 12 is supported on the frame 8 two bearing
plates 21 are fastened to the underside of the frame 8 and are positioned,
viewed at a right angle to the plane of the drawing, behind one
another. These bearing plates 21 serve to connect the trolley 26
to the frame 8 as will be explained in more detail infra. On the
opposite side of the frame 8 relative to the track-laying chassis,
a king pin arrangement with a kingpin support member 23 and kingpin
24 is connected to the frame 8 by bearing plates 22 secured on the
frame 8. The support member 23 supports a kingpin 24 of a semitrailer
coupling. In the operating position illustrated in FIG. 1 the support
member 23 is pivoted upwardly and is secured by bearing plates 25
in this position.
In the position illustrated in FIG. 2 the piston-cylinder unit
16 in comparison to FIG. 1 is slightly farther extended wherein
the bearing plates 21 are slightly lowered and in this position
can be connected to an axle apparatus or trolley 26 having been
positioned under the bearing plates previously. For this purpose,
the trolley 26 has bearing plates 27 also arranged in pairs which
can be connected by means of axial bolts or axial shafts with the
bearing plates 21.
Moreover, in FIG. 2 the plate 23 is in a downwardly pivoted position
and is secured in this position by two links 28 which, viewed at
a right angle to the plane of the drawing, are arranged behind one
another. Instead of the links 28 a piston-cylinder unit could also
be used for an automatic adjustment of the plate 23. In this downwardly
pivoted position of the plate 23 the kingpin 24 points substantially
vertically downwardly.
In the position illustrated in FIG. 3 the piston-cylinder unit
16 is extended farther relative to FIG. 2. Accordingly, the frame
8 is lifted by the piston-cylinder unit 16 and, since the bearing
plates 21 rests on the trolley 26 the part of the track-laying
chassis 1 adjacent to the trolley 26 is lifted. In this position,
a semitrailer tractor 3 can be moved under the kingpin 24 so that
the coupling plate of the semitrailer coupling is positioned underneath
the kingpin 24. Subsequently, the piston-cylinder unit 16 is again
retracted. This has the result that first the kingpin 24 is lowered
and inserted into the semitrailer coupling. By a further retraction
of the piston-cylinder unit 16 the end of the track-laying chassis
1 neighboring the kingpin 24 is now also lifted so that the track-laying
chassis 1 is positioned completely above the ground (see FIG. 4).
Now the crushing device can be transported like a semitrailer truck.
A crusher device illustrated in FIGS. 1 through 4 has a weight
in the range of 30 metric tons. A weight of approximately 15 to
16 metric tons thus rests on the trolley 26 so that it is favorably
provided with at least two axles. Instead of the bearing plates
21 other devices for attachment of the trolley 26 on the frame 8
can be provided, for example, a kingpin which can be brought into
engagement with a coupling plate of a semitrailer coupling arranged
on the trolley 26. The connecting point 4 of the trolley 26 on the
frame 8 has advantageously a spacing of at least 2.5 meters, preferably
at least 2.8 meters. In any case, the connecting point 4 of the
trolley on the frame 8 must have such a great spacing from the pivot
axis 15 of the frame that a sufficient pivot range can be covered.
This pivot range or pivot stroke comprises, on the one hand, the
travel between the operating position and the position of connection
of the trolley and also the pivot travel between the connected trolley
(FIG. 2) and the position in which the part of the track-laying
chassis adjacent to the trolley is lifted sufficiently off the ground
(FIG. 3). In an analogous manner, the kingpin must perform a sufficient
pivot stroke when the frame 8 is pivoted by means of the piston-cylinder
unit 16 in order to be lifted, on the one hand, above the semitrailer
coupling of the semitrailer tractor and to be lowered into it, and,
on the other hand, to allow a sufficient lifting of the part of
the track-laying chassis adjacent to the semitrailer coupling off
the ground.
Basically, it is also conceivable and possible to exchange the
arrangement of the bearing plates 21 and of the kingpin 24 on the
frame 8 wherein the dumping end 18 of the conveyor belt 12 then
extends above the semitrailer tractor 3.
In the operating position illustrated in FIG. 1 the frame 8 can
be pivoted by the piston-cylinder unit 16 about the pivot axis 15
in a manner known in the art in the upward direction in order to
make the high-stress machine parts, which are subjected to considerable
wear, directly accessible from below for service and mounting labor
(compare European patent application 0 923 991 A1).
Basically, it would also be conceivable and possible to keep the
trolley 26 in the operating position according to FIG. 1 connected
to the bearing plates 21 so that it would be lifted off the ground.
While specific embodiments of the invention have been shown and
described in detail to illustrate the inventive principles, it will
be understood that the invention may be embodied otherwise without
departing from such principles. |