Abstrict A mobile crusher installation having a supporting framework which
receives at least one crusher and can be lifted and relocated, corresponding
to the advance or the removal of material, by a transport mechanism,
preferably walking legs or extendable track-laying or wheel carriages,
and having at least one loading device associated with at least
one crusher, which loading device has a receiving hopper for the
loose material brought up by freely movable loading machines such
as wheel loading machines or excavators, and a conveyor which feeds
the loose material to a transfer hopper of the crusher, possibly
with the interpositioning of a screening system. In order to increase
the availability of the mobile crusher installation while at the
same time retaining the optimum loading capacity of the loading
machines, the loading device is mounted on the supporting framework
swingable around a vertical axis. Furthermore, the loading device
can, in addition, be swingable around a horizontal axis which lies
within the region where it dumps its material.
Claims We claim:
1. In a mobile crusher system for use in a stone quarry or in strip
ore or coal mining having a supporting framework which holds at
least one crusher, which system can be lifted and relocated in accordance
with an advance in the removal of material by any one of a class
of transport mechanisms, including a walking-leg system, an exendable
track-laying system and a wheel undercarriage system; said crusher
system further having at least one loading device which is associated
with at least one crusher, a receiving hopper for loose material
delivered by freely transporting loading machines such as wheel
loaders or excavators, and a conveyor which feeds the loose material
to the crusher by one of a class of transfer hoppers including a
direct feed hopper and a hopper incorporating a screening system;
the improvement wherein
said crusher system further comprises a vertical pivot, said loading
device being rotatably mounted on the supporting framework by said
vertical pivot to be swingable around a vertical axis;
a horizontal pivot located in the region of a dishcarge from said
loading device, said loading device being mounted further to said
framework by said horizontal pivot, and being swingable around a
horizontal axis located in the region of discharge;
a locking device, and wherein said loading device can be fixed
in a transport position on the supporting framework by means of
said locking device;
said vertical pivot includes surface contact means affixed to said
supporting framework for supporting said loading device during a
swinging of said loading device; and
said surface contact means includes a rolling surface.
2. The mobile crusher system according to claim 1 wherein
said loading device is provided with skid means for resting on
the ground and allowing a swinging of the loading device past a
loading machine.
3. The mobile crusher system according to claim 1 further comprising
a swinging device for swinging said loading device about said framework.
4. The mobile crusher system according to claim 3 wherein
said swinging device comprises hydraulic cylinders.
5. The mobile crusher system according to claim 1 wherein
said loading device, in the region of its receiving hopper, is
provided with its own undercarriage.
6. The mobile crusher system according to claim 5 wherein
said undercarriage is an extendable wheel.
7. The mobile crusher system according to claim 5 wherein
said undercarriage is a caterpillar undercarriage.
8. The mobile crusher system according to claim 1 wherein
said vertical pivot provides for a swinging of said loading device
around the vertical central axis of a crusher of the crusher system.
9. The mobile crusher system according to claim 1 wherein
the crusher system includes two crushers pivotally supported by
said supporting framework, each of the two crushers having a load
device associated therewith, the loading devices being swingable
relative to each other and to the supporting framework from a starting
position extending parallel to each other, in each case through
a range of swing covering at least 90.degree..
Description FIELD AND BACKGROUND OF THE INVENTION
The present invention relates to a mobile crusher installation
in general.
In particular the invention relates to a mobile crusher system
having a supporting framework which receives at least one crusher
and which can be lifted and relocated, in accordance with the advance
of the removal of material, by a transport mechanism, preferably
a walking-leg system or an extendable track-laying or wheel undercarriage,
and having at least one charging device which is associated with
at least one crusher, and having a receiving hopper for the loose
material delivered by freely transporting loading machines such
as wheel loaders or excavators, and having a conveyor which feeds
the loose material to a transfer hopper of the crusher, possibly
with the interposition of a screening system.
Such mobile crusher installations are already known. Their charging
devices are rigidly connected to the crusher and thus to the supporting
framework, so that as the removal work proceeds either the loading
machines must travel over larger distances, as a result of which
their loading capacity decreases, or the crusher installation must
be relocated more frequently, which means in each case certain standstill
times for the crusher.
SUMMARY OF THE INVENTION
It is an object of the invention to improve a mobile crusher installation
of the above-described type in such a manner that its availability
is increased while simultaneously retaining the optimal loading
capacity of the loading machines.
According to the invention, the loading device (8) is mounted on
the supporting framework (1), swingable around a vertical axis (13).
By the invention there is created a mobile crusher installation
which can remain considerably longer in its immediate position since
its loading device can be swung in accordance with the corresponding
advance of the removal of material, so that the travel distances
of the loading machines are shortened. Despite the increased availability
of the crusher installation, optimum loading capacity of the loading
machines is thus obtained and thus, as a whole, a considerable increase
in the output of the mobile crusher installation at little structural
expense is attained.
In accordance with another feature of the invention, the loading
device (8) is furthermore swingable around a horizontal axis (16)
located in the region of its place of dumping. This additional possibility
of swing of the loading device around a horizontal axis permits
the relocation and operation of the crusher installation even on
rough terrain.
In order to prevent stresses on the articulations upon the relocation
of the crusher installation, the loading device (8) can, in accordance
with the invention, be fixed in a transport position on the supporting
framework (1) by means of a locking device (15).
In one particularly simple structural development of the crusher
system of the invention, the loading device (8) is provided with
skids or the like for resting on the ground to swing past a loading
machine (6). In this way, additional devices and means for the swinging
of the loading device are dispensed with.
As an alternative to this, it is possible to provide the supporting
framework (1) with sliding or rolling surfaces for the loading device
(8), which surfaces are swingable by means of a swinging device,
preferably hydraulic cylinders. In this embodiment, the forces to
be applied for the swinging of the loading device are taken up by
the supporting framework.
In order to substantially relieve the supporting framework from
swinging forces for the loading device, it is possible in a preferred
embodiment of the invention to provide the loading device (8), in
the region of its receiving hopper (7), with its own undercarriage
(14), preferably an extendable wheel or caterpillar undercarriage.
In this way, the loading device is supported on the ground also
during the swinging process, so that the supporting framework is
relieved of the swinging forces.
A particularly simple structural embodiment is obtained if, in
accordance with the invention, the loading device (8) is swignable
around the vertical central axis (13) of the crusher (2).
In order to increase the capacity of the crusher system of the
invention it is finally possible to provide the supporting framework
(1) with two crushers (2) each of which has a loading device (8)
associated with it, the loading devices being swingable relative
to each other and to the supporting framework (1) from a starting
position extending parallel to each other, in each case through
a range of swing covering at least 90.degree..
BRIEF DESCRIPTION OF THE DRAWINGS
With the above and other objects and advantages in view, the present
invention will become more clearly understood in connection with
the detailed description of preferred embodiments, when considered
with the accompanying drawings, of which:
FIG. 1 is a side view of a first embodiment of the invention, shown
in operating position;
FIG. 2 is a top view of the embodiment of FIG. 1;
FIG. 3 is a side view of the crusher system of FIG. 1 shown in
transport position;
FIG. 4 is a side view, corresponding to FIG. 1 of a second embodiment,
shown in operating position;
FIG. 5 is a side view, corresponding to FIG. 4 of the second embodiment,
shown in the transport position;
FIG. 6 is a side view of a third embodiment, shown in the operating
position;
FIG. 7 is a side view corresponding to FIG. 6 shown in the transport
position; and
FIG. 8 is a top view of a fourth embodiment.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Each of the embodiments shown has a mobile crusher installation
with a supporting framework 1 on which one crusher 2 is arranged
in the case of the first three embodiments and two crushers 2 in
the case of the fourth embodiment. The supporting framework 1 can
be lifted and relocated by a transport mechanism in accordance with
the advance of the removal of the material. In the first embodiment,
shown in FIGS. 1 to 3 the transport mechanism is formed by walking
legs 3. In the second embodiment, shown in FIGS. 4 and 5 an extendable
wheel undercarriage 4 is provided for the lifting and relocating
of the supporting mechanism 1. The third embodiment, shown in FIGS.
6 and 7 uses as transport mechanism a track-laying undercarriage
5 provided with a vertically adjustable lift table.
The loose material to be crushed in the crusher 2 is fed to the
mobile crusher installation by means of freely movable loading machines
6 they being preferably wheel loaders or excavators. These loading
machines 6 transport the loose material which has been obtained,
for instance, in a quarry or in an open-pit ore or coal mine to
a receiving hopper 7 of a loading device 8 which, for example, comprises
a continuous conveyor in the form of a conveyor or plate belt and
charges the loose material into a transfer hopper 9 of the crusher
2. From this transfer hopper 9 the loose material enters into the
crusher 2 from which it is removed, for instance, by means of a
removal belt 10 and--as shown in FIGS. 2 and 8--fed to a conveyor
belt system 11 which conducts it further.
By means of a swivel connection 12 shown in the drawings, in the
region of the transfer hopper 9 the loading device 8 is mounted
for swinging around a vertical axis 13 on the supporting framework
1. In the embodiments shown, this vertical axis 13 coincides with
the vertical central axis of the crusher 2. As a result of this
swingable mounting of the loading device 8 it is possible to swing
said device, from a central position shown in solid lines in FIGS.
2 and 8 within a predetermined region of swing and bring it, for
instance, into the position shown in dashed line. The range of swing
can, in accordance with FIG. 2 amount to 180.degree.. In the embodiment
shown in FIG. 8 the one loading device 8 namely the one shown
at the top, is also swingable 180.degree. out of the initial position,
while the range of swing of the other loading device 8 has been
assumed to be 90.degree., as the arrows shown in these two figures
indicate.
In order that the weight of the entire loading device 8 does not
act on the swivel connection 12 the loading device 8 can be provided
with skids or the like for resting on the ground. The swinging can
be effected by one of the loading devices 8. As an alternative to
this, it is possible to provide the supporting framework 1 with
sliding or rolling surfaces for the loading device 8 and to swing
the latter by means of a swinging device, preferably hydraulic cylinders.
In the embodiments shown in the drawing, the loading device 8 is
provided in each case with its own undercarriage 14 in the region
of its receiving hopper 7. This undercarriage 14 is preferably developed
as an extendable wheel undercarriage but, as shown in the embodiment
of FIGS. 6 and 7 it can also be developed as a track-laying undercarriage.
In order to avoid undesired stress on the swivel connection 12
upon the relocation of the mobile crusher installation, a locking
device 15 is provided by which the loading device 8 is locked in
transport position on the supporting framework 1 with the undercarriage
14 retracted, as shown in FIGS. 3 5 and 7. In these transport positions,
the supporting framework is relocated, corresponding to the advance
of the removal of the material, by means of its transport mechanism,
namely the walking legs 3 wheel undercarriage 4 or track-laying
undercarriage 5 after the supporting mechanism 1 together with
the crusher 2 and the loading device 8 have been lifted off the
ground.
In order to facilitate the relocation and operation of the mobile
crusher installation even on uneven terrain, in the embodiments
shown the loading device 8 is furthermore swingable around a horizontal
axis 16 which lies in the region where it dumps its material. This
swivel connection is also relieved from load if the loading device
8 is locked in the transport position on the supporting framework
1 by the locking device 15 when the crusher installation is relocated.
The mobile crusher installation described above can remain at its
immediate location considerably longer, since the loading device
8 can be swung in accordance with the progress of the removal of
material, so that the travel distances of the loaders 6 are shortened.
This results in increased availability of the crusher installation.
The loading capacity obtainable with the loading machines 6 is simultaneously
increased, so that, as a whole, a considerable increase in capacity
of the mobile crusher installation is obtained. |