EP3799967A1 - Rock processing installation - Google Patents

Abstract

The invention relates to a rock processing plant (10) with a machine frame (13) which carries a sieve unit (20), the sieve unit (20) having at least two sieve decks (21, 22) which extend in the height direction (H) of the rock processing plant (10) are arranged offset to one another, the screen decks (21, 22) each having a discharge area (A1, A2), a transport device (15) adjoining the screen unit (22) in the conveying direction, the transport device (15) having a feed area (15.1 ) and a discharge area (15.2), a transport means, in particular an endlessly circulating conveyor belt (15.3), extending at least in some areas in a transport direction (D) between the feed area (15.1) and the discharge area (15.2), the transport device (15 ) is attached to the machine frame (13) by means of a mechanical adjusting device (31), with the mechanical adjusting device (31) of the task area (15.1) of the tra Sports device (15) can be adjusted between two set positions in which the feed area (15.1) is optionally assigned to one of the discharge areas (A1, A2) of the two screen decks (21, 22) or to both discharge areas (A1, A2), and the feed area (15.1) of the transport device (15) can be adjusted by means of the mechanical adjusting device (31) between the two adjusting positions in the height direction and in the transport direction (D) of the transport device (15). Such a rock processing plant offers a simple and space-saving construction, in which conversion to the various operating positions is possible with little effort.

Description

The invention relates to a rock processing plant. Such rock processing plants can be designed as mobile screening plants, for example. These screening systems can be independent systems or they can be assigned directly to a rock crushing system (for example jaw crusher, rotary impact crusher, etc.).

Such a rock processing plant is off EP 3 482 836 A1 known. Such rock processing plants have a machine frame which carries a sieve unit, the sieve unit having at least two sieve decks which are arranged offset from one another in the height direction, in particular in the direction of gravity of the rock processing plant.

With the screen decks, material fractions can be separated. Accordingly, a material fraction is diverted from the screen deck, the grain size of which is such that it does not fall through the screen deck. The material fraction with a smaller grain size passes through the screen deck and falls onto another screen deck below or, for example, onto a transport device. The screen decks each have a discharge area. In this discharge area, the material fraction which is carried on the screening deck can be discharged from the working area of the screening unit.

To the sieve unit of the EP 3 482 836 A1 an endless transfer belt follows in the conveying direction of the sieve unit. This transfer belt picks up the sieve material in connection with the sieve unit in the discharge area and transports it away transversely to the conveying direction of the sieve unit.

The transfer belt then transfers the screened material to a return belt. This return belt guides the screen material back to a breaking unit. The transfer belt can be adjusted in the vertical direction and transversely to its longitudinal extension in order to assign it either to the upper screen deck or to both screen decks. If it is assigned to the upper screen deck, it transports the rock material supplied by this screen deck away from the discharge area of this screen deck. If it is assigned to the lower screening deck, it transports the rock material fed in from both screening decks away from both discharge areas.

In the first setting position, in which the transfer belt is assigned to the upper screen deck, a side discharge belt can be installed on the machine frame, which then diverts the rock material from the lower screen deck.

The use of the additional transfer belt requires a lot of parts and assembly work. In addition, this transfer belt has a significant impact on the construction volume of the rock processing plant.

In a second, in the EP 3 482 836 A1 The embodiment variant described here uses an adjusting device with which the entire sieve unit with the two sieve decks can be adjusted between two adjusting positions in the height direction. The two screen decks are accordingly offset together in the height direction. This also results in a high mechanical outlay. In addition, the feed unit upstream of the sieve unit must also be converted so that the rock material can be properly fed to the sieve unit.

It is the object of the invention to provide a rock processing plant of the type mentioned at the beginning, which can be converted with little effort in such a way that that optionally one or more rock fractions can be isolated from the discharge area of the sieve unit.

This object is achieved in that the task area of the transport device can be adjusted between the two adjusting positions in the height direction and in the transport direction of the transport device by means of the mechanical adjusting device.

Because the transport device is adjusted in the height direction and also in the transport direction of the transport device, the transfer belt, which is required in the prior art, can be dispensed with. In particular, the rock material from the discharge area (s) of the sieve unit can be fed directly onto the transport device and guided out of the work area of the rock processing plant. The rock material removed via the transport device can then, in particular, be heaped up directly in the discharge area of the transport device on a heap next to the machine.

The mechanical actuating device can be formed, for example, by a hydraulic cylinder or a motor-driven actuating unit, or it can have such a structural unit.

According to a preferred variant of the invention, it can be provided that the transport device is attached to the machine frame by means of a pivot bearing in the first and / or second setting position so that it can be adjusted about a pivot axis such that the inclination of the transport device can be changed in the first and / or the second setting position.

With the swivel bearing it is possible to adjust the inclination of the transport device and thus the height of the drop area. Such an inclination adjustment is preferably possible in both setting positions. This can be made possible by the fact that the pivot bearing itself is adjusted in the event of an offset between the two setting positions, so that the pivot axis of this pivot bearing assumes different spatial positions in the various setting positions. Preferably, however, it can also be provided that different pivot bearings are implemented at different storage locations in the two setting positions.

It can preferably be provided that the inclination of the transport device with respect to the horizontal is continuously adjustable in the angular range between 0 ° and 35 ° or in the grid dimension. This angular range is particularly preferably maintained in both set positions of the transport device.

A particularly preferred variant of the invention is such that the mechanical adjusting device causes the inclination of the transport device relative to the horizontal on the one hand and the adjustment of the task area of the transport device between the two positioning positions in the height direction and in the transport direction of the transport device on the other hand. In this way, the mechanical adjusting device has a double function, which leads to a further reduction in the expenditure for parts and assembly.

According to a conceivable alternative to the invention, it can be provided that a support with a locking device is effective between the transport device and the machine frame, which is coupled with one support part to the machine frame and the other support part to the transport device, and that the two mutually adjustable support parts in different setting positions, which are assigned to different inclinations of the transport device relative to the horizontal, can be locked against each other in a form-fitting manner with a form-fitting element. The alignment of the transport device can be reliably fixed with the form-fit connection. This can be particularly advantageous when, for example, a hydraulic cylinder is used as the mechanical adjusting device. This can then be relieved by the form-fit connection in the assigned setting position. With the support, the transport device can be supported with respect to the machine frame or suspended from it.

To simplify the work, it can advantageously be provided that the mechanical adjusting device is coupled to the two support parts in such a way that, when the adjusting device is adjusted, the two support parts are adjusted with respect to one another with force. With the mechanical adjusting device, the two support parts can initially be adjusted against each other. Then the position reached can be fixed by means of the form-fit connection.

A compact stone processing plant can be designed if it is provided that the mechanical adjusting device or the support on a support part of the machine frame or the transport device can optionally be supported positively in at least two fixing positions by means of a fixing element, the fixing positions being arranged at a distance from one another in the vertical direction. The fixing positions are then preferably assigned to the different setting positions of the transport device. If the transport device is adjusted downwards in the height direction, then, for example, the lower fixing position for the mechanical adjusting device or the support can also be selected. By adjusting the fixing positions, the effective direction of the mechanical adjusting device or the support can be arranged at a sufficiently steep angle of incidence to the transport device, so that the adjusting force provided by the mechanical adjusting device is sufficient to effect the adjustment of the transport device or the support sufficient support is provided.

If it is also provided that the adjustment movement of the mechanical adjusting device or the support between the two fixing positions is at least partially guided by means of a guide piece that is adjustable in a guide of the support part, then the conversion between the two fixing positions can be easily accomplished.

A particularly preferred variant of the invention is such that a swivel mechanism is effective between the machine frame and the transport device, by means of which the adjustment of the task area is guided between the two setting positions. With the swivel mechanism, the Transport device can be moved between the two adjusting positions in a controlled manner, with the kinetic energy required for the adjustment being made available at the same time as the mechanical adjusting device.

A particularly simple design is achieved in that the swivel mechanism has a holder and a rocker, that the holder and the rocker each by means of a joint directly or indirectly to the machine frame and in each case by means of a further joint directly or indirectly to the transport device to form a Four-bar system are coupled. The holder and the rocker thus form the links of the four-bar system. A stable and reliable guidance of the transport device is possible via the four-bar system. In particular, with such a four-bar system, the desired height adjustment and the adjustment in the transport direction of the transport device can be easily accomplished at the same time.

In a conceivable variant of the invention, it can in particular be provided that the four-bar system is designed as a parallelogram four-bar system. However, this is not absolutely necessary. In particular, it is not necessary for the holder and the rocker to be parallel to one another.

According to the invention, it can also be provided that the swivel mechanism has the holder, that a holding element is arranged on the transport device or the machine frame, that the holder has a catch element, which in a first position of the transport device the catch element outside and in a second position the catch element is in engagement with the holding element.

According to the invention, it can also be provided that a holding element is arranged on the transport device or the machine frame, that the holder of the pivoting mechanism has a catch element, and that in a first position of the transport device the catch element outside and in a second position the catch element in engagement with the Holding element stands. In this way, the holder of the swivel mechanism can be out of engagement with the holding element in a set position of the transport device. The transport device can accordingly can then be adjusted in its inclination unaffected by the holding element as desired by the user. When the holding element is caught by the holder, the pivoting mechanism is coupled to the transport device and the transport device can then be moved into the second set position.

A conceivable alternative to the invention can be such that the transport device is held pivotably about a first pivot axis on a first pivot bearing in the first setting position and the stationary pivot bearing for the transport device is formed by the holding element and the holder in a second setting position of the transport device.

If it is then additionally provided that in the second setting position, in which the stationary pivot bearing for the transport device is formed by the holding element and the holder, the joint piece with which the transport device can be pivoted relative to the rocker is adjustable in a positioning guide transversely to the joint axis , an adjustment of the inclination of the transport device can then also be effected in a simple manner in the second setting position. In the case of such an inclination adjustment, the joint piece is displaced in the positioning guide.

Figur 1:

eine schematische Darstellung einer Gesteinsverarbeitungsanlage in Seitenansicht,

Figuren 2 bis 5

jeweils ein Detail der Gesteinsverarbeitungsanlage in verschiedenen Betriebsstellungen.

The invention is explained in more detail below using an exemplary embodiment shown in the drawings. Show it:

Figure 1:

a schematic representation of a stone processing plant in side view,

Figures 2 to 5

each a detail of the stone processing plant in different operating positions.

Figure 1 shows a rock processing plant 10, on which the invention is to be explained by way of example. This rock processing plant 10 is a screening machine. However, the invention is not limited to use in a screening machine. Rather, the invention can also be used in another rock processing plant, for example in a rock crusher, in particular a jaw crusher, a cone crusher or a rotary impact crusher with an associated sieve unit can be used.

Furthermore, the invention can also be used in combined rock crushing plants with screening plants. The following explanations are therefore only described using a screening system as an example. The following statements also apply in particular to the aforementioned rock processing plant.

How Figure 1 shows, the rock processing plant 10 has a machine frame 13 which is supported by running gears 14, which are designed, for example, as crawler tracks. The rock processing plant 10 also has a feed hopper 11. This can be used to load the rock material to be processed. In the area of the feed hopper 11, a conveying device is provided, which is formed, for example, by a hopper discharge belt 12. Furthermore, instead of a funnel discharge belt 12, it is also conceivable to use a conveyor trough with a conveyor device which is designed as a vibration conveyor.

Following the feed hopper 11, the rock processing plant 10 has a sieve unit 20.

How Figure 1 shows, the sieve unit 20 has an upper sieve deck 21 following the funnel take-off belt 12. The rock material is conveyed onto this sieve deck 21 by means of the funnel discharge belt 12. The screen deck 21 has a screen grate which has a predetermined mesh size. Rock material which cannot fall through the sieve deck 21 due to the grain size is placed on a transport device 15, which in the present case is designed as an endlessly revolving conveyor belt, and is conveyed by this onto a heap of heaps. The rock material which falls through the sieve deck 21 reaches the sieve deck 22 underneath. The sieve deck 22 again has a predetermined mesh size. Rock material which does not fall through the screen deck 22 is fed to a side discharge belt 17. This side discharge belt 17 leads laterally out of the working area of the sieve unit 20. The screened material will piled up like this Figure 1 reveals. The sieve material which falls through the sieve deck 22 arrives at a conveyor device 23, for example an endlessly revolving conveyor belt. This sifted out fine material is guided to a fine-grain discharge belt 16 and discharged from the work area of the machine. The sifted out fine material is piled up again on the side of the machine. The two screen decks 21 and 22 are driven by means of vibration drives, in particular eccentric drives.

The transport device 15 can be moved to a lower position so that the overflow upper deck material of the screen deck 21 and the overflow lower deck material of the screen deck 22 are discharged via the conveyor belt 15 and thus only two screen fractions are screened out. Accordingly, only one side fine grain conveyor belt 16 is installed. The side discharge belt 17 can accordingly be dispensed with, or it has either been dismantled or moved into a position / arrangement on the system in which this side discharge belt is correspondingly disabled.

Furthermore, it is conceivable that the fine-grain discharge belt 16 and the side discharge belt 17 can optionally be attached to one of the two sides of the machine on the machine frame 13. Furthermore, it is conceivable that the fine-grain discharge belt 16 and also the side discharge belt 17 are arranged on the same side of the system.

In Figure 2 an enlarged detail of the rock processing plant 10 is shown more clearly. As this illustration shows, the transport device 15 has a frame which carries the endlessly circulating conveyor belt 15.3. The transport device 15 forms a feed area 15.1 and a discharge area 15.2.

The transport device 15 is attached to the machine frame 13. For this purpose, the machine frame 13 has a carrier 50. A first pivot bearing 15.4, on which the transport device 15 is pivotably mounted, is arranged on the carrier 50.

The transport device 15 is supported by means of a support 30 relative to the machine frame 13, for example on an arm 51 of the carrier 50, such as Figure 2 shows. The support 30 has two support parts 36 and 38 which can be linearly adjusted against one another, for example telescoped against one another. The support part 36 is equipped with form-fit elements 39. As the drawing shows by way of example, these can be designed as bores. Form-fitting counter-elements 39.1, which can also be designed as bores, are present on the support part 36. In the in Figure 2 A bolt can be inserted through the aligned bores (interlocking element 39 and interlocking counter-element 39.1) shown in the set position of the transport device 15. In this way a locking device 35 is formed.

The support 30 is pivotably coupled to the transport device 15 via a pivot bearing 37. On the opposite side, the support 30 is supported on a support part 40 of the machine frame 13 by means of a fixing element 43. The support member 40 can, like this Figure 2 shows by way of example, be attached to an arm 51 of the carrier 50. The fastening on the support part 40 is designed in such a way that a detachable connection is provided here. This can be accomplished, for example, by a bolt which is passed through holes in the support part 40 and the support part 38 that are aligned with one another. Since the two support parts 36 and 38 are mutually positively locked with the locking device 35, they cannot be adjusted against each other. This results in a fixed support length. The transport device 15 can therefore be supported with respect to the machine frame 13 via the support 30.

How Figure 2 can further be seen, the support 30 can be assigned a mechanical adjusting device 31. In the present exemplary embodiment, the mechanical adjusting device 31 is designed as a hydraulic cylinder. The use of other mechanical adjustment devices 31, for example a gear arrangement, a servomotor or the like, is also conceivable. The hydraulic cylinder has a piston rod which forms an actuator 32. The actuator 32 is connected to the support member 38 via a connector 33. Is on the opposite end the hydraulic cylinder is firmly coupled to the second support part 36 via a connector 34.

Figure 2 clearly shows that the sieve unit 20 has the sieve decks 21 and 22 described above. The two screen decks 21, 22 are arranged offset from one another in the height direction H, that is to say in the direction of gravity. Each of the screen decks 21, 22 has a discharge area A1 and A2, respectively. A1 forms the discharge area of the first screen deck 21 and A2 the discharge area of the second screen deck 22.

Figure 2 clearly shows that the discharge area A1 of the first screen deck 21 is assigned to the feed area 15.1 of the transport device 15. The discharge area A2 of the second screen deck 22 leads to the feed area of the side discharge belt 17.

In order to enable an orderly transfer of the rock material, the conveyor belt 15 has a funnel 18. This prevents rock material from falling to the side from the feed area 15.1. The side discharge belt 17 can also be equipped with such a funnel.

During the operation of the plant, the rock material is fed from the screen deck 21 in the discharge area A1 to the feed area 15.1 of the transport device 15. The rock material is then moved in the transport direction D along the transport device 15 and to the heap (see Figure 1 ) guided. In the same way, the rock material of the screen deck 22 below is fed onto the side discharge belt 17. It is guided along a conveying direction via the side discharge belt 17 to a dump pile.

As has been described above, the rock processing plant 10 can now be converted in such a way that both rock fractions of the screen decks 21 and 22 are fed onto the transport device 15. As described above, for this purpose the side discharge belt 17 is dismantled or adjusted so that it is moved out of the discharge area A2.

How Figure 2 As illustrated, a holder 61 is pivotably attached to the machine frame 13 via a hinge 62. For example, the holder 61 can be pivotably attached to an attachment 52 of the carrier 50. The holder 61 has a lever, at the end of which a catch element 63 is arranged. The catch element 63 is designed in the form of an undercut receptacle. The holder 61 with its catch element 63 is particularly preferably designed in the form of a pivotable hook.

In the in Figure 2 The starting position shown is a run-up slope 63.1 of the catching element 63 placed on a holding element 54. The holding element 54 can be designed as a bolt, for example. The holding element 54 is fastened to the transport device 15.

Figure 2 shows that, in the basic position, the holder 61 is supported on the shoulder 52 by means of a securing element 53. The securing element 53 prevents the holder 61 from rotating downward. In order to accomplish the conversion of the transport device 15, the securing element 53 is first removed. The locking device 35 is then released and the form-fit connection formed here is canceled. The mechanical adjusting device 31 can now be activated, the distance between the two connectors 33, 34 being reduced. This can be done by moving the actuator 32 (piston rod) into the hydraulic cylinder. During this movement, the inclination of the transport device 15 is adjusted. In Figure 3 this inclination adjustment is symbolized by the arrow S, which shows the pivoting movement. As soon as the holding element 54 is positively caught in the catch element 63, the transport device 15 cannot be adjusted further in the direction of the pivoting movement S. The transport device 15 is now held on the one hand on the first pivot bearing 15.4 and on the other hand on the holder 61.

Since the support 30 and thus the adjusting device 31 have also been made free of force in this position, the fixing element 43 can be released.

Figure 3 shows that the support 30 has a guide piece 41 which is arranged in the region of the support part 40. This guide piece 41 is in a guide 41.1 of the Support part 40 linearly adjustable guided. With the fixing element 43 released, the hydraulic cylinder can now be activated. The actuator 32 is extended. As a result of this extension movement, the guide piece 41 moves in the guide 41.1 into the position shown in FIG Figure 4 is shown. In this position, the support 30 can again be positively connected to the carrier 50 with a fixing element 42. This can be done again with a bolt, for example. In this position, the transport device 15 is now statically over-determined on the holder 61, the support 30 and the first pivot bearing 15.4. Therefore, the connection of the first pivot bearing 15.4 can be released. The first pivot bearing 15.4 can be formed, for example, in such a way that the carrier 50 and the transport device 15 have holes which are aligned with one another and through which a bolt is inserted. This bolt can now be pulled to loosen the first pivot bearing 15.4. The transport device 15 is then held in a statically determined manner with the holder 61 and the support 30 on the machine frame 13.

The Figures 4 and 5 show the transition of the transport device 15, the task area 15.1 of the transport device 15 from the first set position according to FIG Figure 4 in the second position according to Figure 5 is adjusted. During this adjusting movement, the task area 15.1 is adjusted both in the height direction H and in the transport direction D of the transport device 15.

The adjusting movement is guided by a swivel mechanism 60. The pivot mechanism 60 comprises the holder 61 described above and the in Figure 5 clearly recognizable rocker arm 64. The holder 61 and the rocker arm 64 are each pivotably connected to the machine frame 13, preferably the carrier 50, via a joint 62, 64.1. The pivot axis runs perpendicular to the image plane according to Figure 5 . Furthermore, the holder 61 and the rocker arm 64 are each connected to the transport device 15 via a further joint 54.1 and 19.1. With the joints 62, 64.1, the further joints 54.1 and 19.1 as well as the holder 61 and the rocker arm 64, a four-joint system is formed, in the present embodiment a parallelogram four-joint system.

The four-bar system does not necessarily have to be designed as a parallelogram. If it is a parallelogram four-bar system, the angle of incidence of the haul-off belt remains the same before and after the displacement of the belt. If the four-bar system deviates from the parallelogram shape, the angle of attack of the belt will also change with the displacement of the belt.

In fact, in the present example, no exact parallelogram is implemented, but the deviation from the parallelogram shape is only slight. This means that the angle of incidence of the haul-off belt before and after the shift remains almost the same but not exactly the same.

If now starting from the first setting position according to Figure 4 the adjusting device 31 is actuated, the distance between the two connectors 33, 34 is shortened. As a result of this shortening, both the holder 61 and the rocker 64 pivot downward. As a result, the displacement of the transport device 15 into the second set position is effected, like this Figure 5 shows. As a result of the use of a parallelogram four-bar system, the inclination of the transport device 15 is preferably maintained during this adjustment. Of course, it is also conceivable that no parallelogram four-joint system but a four-joint system is used in which the connecting line between the joint axes of the joint 62 and the further joint 54.1 on the one hand and the connecting line between the joint axes of the 1st pivot bearing 15.4 and the further joint 19.1 for the other, not parallel. Then, however, the inclination of the transport device 15 relative to the horizontal changes when moving from the first setting position to the second setting position.

In the in Figure 5 The second setting position shown, the feed area 15.1 of the transport device 15 is arranged such that it is assigned to both the discharge area A1 of the first screen deck 21 and the discharge area A2 of the second screen deck 22. Both sieve decks 21 and 22 can therefore load the rock material carried on them onto the transport device 15. The funnel 18 is designed accordingly that it prevents rock material from falling off the two screen decks 21 and 22.

How Figure 5 can be seen, the holder 61 is adjusted so that the holding element 54 of the further joint 54.1 is in alignment with a bearing receptacle 15.7. With the aid of this bearing receptacle 15.7 and the holding element 54, a second pivot bearing 15.6 can then be formed. This is possible, for example, in such a way that the holding element 54 has a bearing bore which is in alignment with the bearing receptacle 15.7. A bolt, which forms the bearing axis, can then be inserted through the aligned bores. The second pivot bearing 15.6 now forms the axis about which the transport device 15 can be pivoted in order to adjust its angle of inclination.

This inclination adjustment takes place again with the aid of the adjusting device 31. If the distance between the connectors 33, 34 is increased by means of the adjusting device 31, the angle of inclination of the transport device 15 relative to the horizontal is also increased. The pivoting movement S is possible in particular because a joint piece 19 of the further joint 19.1 of the rocker arm 64 can be displaced in an adjusting guide 64.3, for example an elongated hole. The minimum and the maximum setting angle of the transport device 15 is limited by the ends 64.2 of the elongated hole at which the joint piece 19 strikes in the two extreme positions. The setting position is fixed again via the locking device 35, as has been described above.

Conversely, if the transport device 15 is now to be removed from the Figure 5 position shown in the in Figure 2 first set position shown are spent, then the above-described work sequence is to run in the opposite direction.

Claims (13)

Rock processing plant (10) with a machine frame (13) which carries a sieve unit (20),
wherein the screening unit (20) has at least two screening decks (21, 22) which are arranged offset from one another in the height direction (H) of the rock processing plant (10),
wherein the screen decks (21, 22) each have a discharge area (A1, A2),
a transport device (15) adjoining the sieve unit (22) in the conveying direction,
wherein the transport device (15) has a feed area (15.1) and a discharge area (15.2),
wherein a transport means, in particular an endlessly circulating conveyor belt (15.3), extends at least in some areas in a transport direction (D) between the feed area (15.1) and the discharge area (15.2),
wherein the transport device (15) is attached to the machine frame (13) by means of a mechanical adjusting device (31),
with the mechanical adjusting device (31) of the feed area (15.1) of the transport device (15) between two set positions in which the feed area (15.1) is optionally one of the discharge areas (A1, A2) of the two screen decks (21, 22) or both discharge areas ( A1, A2) is assigned, is adjustable,
and wherein the task area (15.1) of the transport device (15) can be adjusted between the two positioning positions in the height direction and in the transport direction (D) of the transport device (15) by means of the mechanical adjusting device (31). Rock processing plant (10) according to claim 1, characterized in that the transport device (15) can be adjusted about a pivot axis on the machine frame (13) by means of a pivot bearing (first pivot bearing (15.4) or second pivot bearing (15.6)) in the first and / or second setting position ) is attached so that the inclination of the transport device (15) can be changed in the first and / or the second setting position Rock processing device (10) according to Claim 1 or 2, characterized in that the inclination of the transport device (15) relative to the horizontal is continuously adjustable in the angular range between 0 ° and 35 ° or in the grid dimension. Rock processing device (10) according to one of claims 1 to 3, characterized in that with the mechanical adjusting device (31) the inclination of the transport device (15) relative to the horizontal on the one hand and the adjustment of the task area (15.1) of the transport device (15) between the two set positions in the height direction and in the transport direction (D) of the transport device (15) is effected on the other. Rock processing device (10) according to one of claims 1 to 4, characterized in that a support (30) with a locking device (35) is effective between the transport device (15) and the machine frame (13), which is connected to a support part (38) the machine frame (13) and with the other support part (36) is coupled to the transport device (15), and that the two mutually adjustable support parts (36, 38) in different set positions, assigned the different inclinations of the transport device (15) relative to the horizontal are, can be locked against each other in a form-fitting manner with a form-fitting element (39). Rock processing device (10) according to claim 5, characterized in that the mechanical adjusting device (31) is coupled to the two support parts (36, 38) in such a way that when the adjusting device (31) is adjusted, the two support parts (36, 38) are acted upon by force against each other adjusted. Rock processing device (10) according to one of claims 1 to 6, characterized in that the mechanical adjusting device (31) or the support (30) on a support part (40) of the machine frame (13) or the transport device (15) optionally in at least two fixing positions by means of a fixing element (42, 43) Can be positively supported, the fixing positions being arranged at a distance from one another in the height direction. Rock processing device (10) according to claim 7, characterized in that the adjustment movement of the mechanical adjusting device (31) or the support (30) between the two fixing positions by means of a guide piece (41) which is adjustable in a guide (41.1) of the support part (40) is, is at least partially performed. Rock processing plant (10) according to one of claims 1 to 8, characterized in that a swivel mechanism (60) is effective between the machine frame (13) and the transport device (15), by means of which the adjustment of the feed area (15.1) is guided between the two set positions becomes. Rock processing plant (10) according to claim 9, characterized in that the pivot mechanism (60) has a holder (61) and a rocker arm (64), that the holder (61) and the rocker arm (64) each by means of a joint (62, 64.1 ) are coupled directly or indirectly to the machine frame (13) and in each case by means of a further joint (54.1, 19.1) directly or indirectly to the transport device (15) to form a four-joint system. Rock processing plant (10) according to one of claims 9 or 10, characterized in that a holding element (54) is arranged on the transport device (15) or the machine frame (13), that the holder (61) of the pivoting mechanism (60) is a catch element (63 ), and that in a first position of the transport device (15) the catch element is outside and in a second position the catch element is in engagement with the holding element (54). Rock processing plant (10) according to claim 11, characterized in that the transport device (15) is held pivotably about a first pivot axis in the first setting position on a first pivot bearing (15.4) and the stationary pivot bearing in a second setting position of the transport device (15) for the transport device is formed by the holding element (54) and the holder (61). Rock processing plant (10) according to claim 12, characterized in that in the second setting position, in which the stationary pivot bearing for the transport device (15) is formed by the holding element (54) and the holder (61), the joint piece (19) with the the transport device (15) can be pivoted with respect to the rocker arm (64) and can be adjusted transversely to the joint axis in an adjusting guide (64.3).

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