Jaw crusher for mining

Abstract

The invention relates to the technical field of crushers, in particular to a jaw crusher for mining, which comprises a hollow case, a movable crushing plate and a static crushing plate, the movable crushing plate and the static crushing plate are arranged in the case, a bearing plate seat is hinged to the case, and a hammering part for hammering large stones is arranged on the bearing plate seat. An electric driving part for driving the bearing plate seat to rotate forwards and backwards is also arranged outside the case; the hammering part comprises a telescopic hammer sleeve which is hinged to the machine box and located above the bearing plate base, a hammer handle is arranged in the telescopic hammer sleeve in a sliding and penetrating mode, a hammer head is arranged at one end of the hammer handle, a position adjusting pull wire is tied to the other end of the hammer handle, a band-type brake motor electrically connected to the control system is arranged outside the machine box, and a first winding rod is coaxially arranged on an output shaft of the band-type brake motor. And the position adjusting stay wire is wound on the first winding rod. The method has the advantage that the personnel safety is improved.

Description

Technical Field

[0001] This application relates to the technical field of crushers, and particularly to a jaw crusher for mine ore mining. Background Art

[0002] A jaw crusher is a crushing machine composed of a moving jaw and a stationary jaw, mainly used for coarse and medium crushing of various ores and rocks, and is widely used in industries such as mines, building materials, highways, and railways.

[0003] Chinese Patent with Publication No. CN212524502U discloses a bulletproof jaw crusher, including a jaw crusher. A moving crushing plate and a stationary crushing plate are arranged in its collecting box, and a discharge hole is opened at the bottom of the machine case of the jaw crusher.

[0004] During the use of the jaw crusher, it is inevitable that large stones are similar in shape to the cavity between the moving crushing plate and the stationary crushing plate, resulting in the large stones being stuck between the moving crushing plate and the stationary crushing plate and being difficult to be smoothly crushed. Therefore, it is often necessary to assign a worker to watch beside. And when the above situation occurs, the worker needs to manually break the stuck large stones with a hammer. However, this behavior is highly dangerous and easy to cause harm to personnel, with obvious deficiencies. Summary of the Invention

[0005] In order to improve the problem of high danger in manually crushing large stones, this application provides a jaw crusher for mine ore mining.

[0006] The jaw crusher for mine ore mining provided by this application adopts the following technical solutions: A jaw crusher for mine ore mining includes a machine case with a hollow interior, a moving crushing plate and a stationary crushing plate arranged in the machine case. A supporting plate seat is hinged on the machine case, a hammering part for hammering large stones is arranged on the supporting plate seat, and an electric driving part for driving the supporting plate seat to rotate forward and backward is also arranged outside the machine case.

[0007] By adopting the above technical solutions, when a large stone is stuck between the moving crushing plate and the stationary crushing plate and is difficult to be crushed, the worker controls the electric driving part within a safe range. The electric driving part drives the supporting plate seat to rotate, so that the hammering part on the supporting plate seat rotates and hammers on the large stone, thereby breaking the large stone. The broken stones can be further crushed by the moving crushing plate and the stationary crushing plate. This application uses an electric control method to crush the stones, and the worker is within a safe operation range, with relatively low danger.

[0008] Optionally, the hammering part includes a telescopic hammer sleeve hinged to the machine case and located above the supporting plate seat. A hammer handle is slidably inserted through the telescopic hammer sleeve. One end of the hammer handle is provided with a hammer head, and the other end is tied with an adjusting wire. Outside the machine case, a brake motor electrically connected to the control system is arranged. The output shaft of the brake motor is coaxially provided with a first wire winding rod, and the adjusting wire is wound around the first wire winding rod.

[0009] By adopting the above technical solution, the worker pre-observes the position of the large stone, and then starts the brake motor through the control system. The output shaft of the brake motor drives the first wire winding rod to rotate, thereby realizing the winding and unwinding of the adjusting wire. When the hammer handle and the hammer head rotate towards the large stone during the hammering process, the hammer head and the hammer handle are displaced relative to the telescopic hammer sleeve under the action of centrifugal force until the adjusting wire is tightened, so as to adjust the hammering position of the hammer head, which is applicable to the crushing of large stones at different positions between the moving crushing plate and the static crushing plate.

[0010] Optionally, the electric driving part includes a driving motor arranged outside the machine case and electrically connected to the control system, a second wire winding rod coaxially arranged on the output shaft of the driving motor, and a reset wire wound around the second wire winding rod. The other end of the reset wire relative to the second wire winding rod is tied to the hammer handle. A pre-support compression spring is propped between the bottom of the supporting plate seat and the outer wall of the machine case.

[0011] By adopting the above technical solution, the control system starts the driving motor. The output shaft of the driving motor drives the second wire winding rod to rotate. The second wire winding rod winds up the reset wire, and the reset wire pulls the supporting plate seat to overcome rotation, and the pre-support compression spring is compressed. When the reset wire wound on the second wire winding rod is released again, the pre-support compression spring recovers its deformation, and its deformation force pushes the supporting plate seat and the hammering part to rotate, so as to realize the hammering of the large stone by the hammering part.

[0012] Optionally, the bottom of the supporting plate seat is hinged with an outer sleeve pipe, and an inner telescopic rod is hinged to the outer wall of the machine case below the supporting plate seat. The outer sleeve pipe is slidably sleeved outside the inner telescopic rod, and the pre-support compression spring is sleeved outside the outer sleeve pipe and the inner telescopic rod.

[0013] By adopting the above technical solution, the outer sleeve pipe and the inner telescopic rod are telescopically matched, which plays a guiding and limiting role in the deformation of the pre-support compression spring, and reduces the possibility of the pre-support compression spring tilting and twisting during the compression deformation process.

[0014] Optionally, a telescopic head is slidably inserted through the end of the second wire winding rod. The telescopic head is inserted and matched with the output shaft of the driving motor. A driving part for driving the telescopic head to reciprocate axially along it is arranged on the second wire winding rod.

[0015] By adopting the above technical solution, when the reset wire needs to be wound, the telescopic head is inserted and matched with the output shaft of the driving motor, and the output shaft of the driving motor can drive the telescopic head to rotate synchronously. When the reset wire is pulled out, the driving part drives the telescopic head to disengage from the insertion and matching with the output shaft of the driving motor, thereby reducing the possibility of the output shaft of the driving motor idling and being damaged.

[0016] Optionally, the second wire winding rod includes a rod body that is hollow inside and closed at both ends, two pressing plates that are slidably arranged inside the rod body and parallel to it, a first elastic bladder is placed between the two pressing plates, a reset compression spring is propped between the opposite sides of the two pressing plates and the inner wall of the rod body, and a support column that slides out of the rod body and is connected with a wire winding arc plate is arranged on the side of the pressing plate facing away from the corresponding reset compression spring; The driving part includes a turntable rotatably mounted inside the rod body, and connecting rods are hinged on the turntable corresponding to the two pressing plates one by one, and the hinged position of the connecting rod and the turntable is far from the axis of the turntable; A bearing column is arranged inside the rod body, a conical air passing hole is opened between the two ends of the bearing column, a blocking air balloon is placed near the smaller diameter end of the air passing hole, a counteracting air balloon compression spring is propped between the blocking air balloon and the larger diameter end of the air passing hole, one side of the bearing column opposite to the smaller diameter end of the air passing hole is in close contact with the turntable, and a ventilation hole is axially opened on the turntable, one end of the ventilation hole is communicated with the first elastic bladder, and the other end is communicated with the air passing hole; A return air hole is also opened between the two ends of the bearing column, a return air groove is radially opened on the side of the turntable in close contact with the bearing column, one end of the return air groove is communicated with the ventilation hole, and the other end is used to communicate with the return air hole; A second elastic bladder is placed between the telescopic head and the closed end of the rod body, an air inlet and outlet hole communicated with the second elastic bladder is opened on the telescopic head, and the other end of the air inlet and outlet hole opposite to the second elastic bladder is communicated with the ventilation hole and the return air hole through a corrugated pipe.

[0017] By adopting the above technical solution, when the second wire winding rod rotates to wind up the reset wire, the deformation force of the pre-support compression spring acts on the wire winding arc plate in the reverse direction through the reset wire, and the wire winding arc plate gradually approaches the outer wall of the rod body, so that the two pressing plates cooperate to squeeze the first elastic bladder. At the same time, the connecting rod drives the turntable to rotate under the action of the pressing plate, and the return air groove on the turntable rotates to be circumferentially misaligned with the return air hole. At this time, the gas in the first elastic bladder presses open the blocking air balloon and enters the second elastic bladder through the ventilation hole, the corrugated pipe and the air inlet and outlet hole, and the second elastic bladder expands and then pushes the telescopic head to disengage from the insertion and matching with the output shaft of the driving motor.

[0018] When the second wire winding rod pays out the wire, the reset compression spring pushes the wire winding arc plate away from the outer wall of the rod body, the two pressing plates move away from each other, and the connecting rod drives the turntable to reverse. During this process, the ball pressing spring pushes the air blocking ball to block the air passing hole. It is not until the air return groove on the turntable reverses to communicate with the air return hole again that the air in the second elastic capsule will flow back to the first elastic capsule through the air inlet and outlet holes, the corrugated pipe, the air return hole, the air return groove, and the air vent hole in sequence, realizing the delayed reflux of the gas, ensuring that the reset wire on the second wire winding rod is fully paid out, and the telescopic head can resume the plug-in fit with the output shaft of the driving motor.

[0019] Optionally, a limiting ring is coaxially and rotatably sleeved outside the bearing column and the turntable.

[0020] By adopting the above technical solution, the advantages of reducing the uneven force on the two wire winding arc plates, resulting in the deviation of the turntable from the coaxiality with the bearing column and affecting the communication effect between the air vent hole and the air passing hole are achieved.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. When a large stone is stuck between the moving crushing plate and the static crushing plate and is difficult to be broken, the worker controls the electric driving part within a safe range. The electric driving part drives the supporting plate seat to rotate, so that the hammering part on the supporting plate seat rotates and hammers on the large stone, thereby breaking the large stone. The broken stones can be further broken by the moving crushing plate and the static crushing plate. The present application adopts an electric control method to break the stones, and the worker is within a safe operation range, with relatively low danger. 2. The worker observes the position of the large stone in advance, and then starts the brake motor through the control system. The output shaft of the brake motor drives the first wire winding rod to rotate, thereby realizing the winding and unwinding of the position adjustment wire. When the hammer handle and the hammer head rotate and hammer towards the large stone, the hammer head and the hammer handle are displaced relative to the telescopic hammer sleeve under the action of centrifugal force until the position adjustment wire is tightened, so that the hammering position of the hammer head can be adjusted, which is suitable for breaking large stones at different positions between the moving crushing plate and the static crushing plate. Brief Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of an embodiment of the present application.

[0023] Figure 2 is a cross-sectional view of the positional relationship among the hammer handle, the hammer head, and the telescopic hammer sleeve in an embodiment of the present application.

[0024] Figure 3 is Figure 2 an enlarged view of part A in

[0025] Figure 4 is a cross-sectional view of the positional relationship among the bearing column, the turntable, and the second elastic capsule in an embodiment of the present application.

[0026] Figure 5It is a schematic diagram of the positional relationship among the turntable, connecting rod and pressing plate in the embodiment of the present application.

[0027] Description of reference numerals: 1, chassis; 2, moving crushing plate; 4, supporting plate seat; 5, hammering part; 51, telescopic hammer sleeve; 52, hammer handle; 53, hammer head; 54, position adjustment wire; 55, brake motor; 56, first wire winding rod; 61, driving motor; 62, second wire winding rod; 621, rod body; 622, pressing plate; 623, wire winding arc piece; 624, support column; 63, reset wire; 64, pre-support compression spring; 7, outer sleeve; 8, inner telescopic rod; 9, telescopic head; 91, air inlet and outlet holes; 10, first elastic capsule; 11, reset compression spring; 12, turntable; 121, ventilation hole; 122, air return groove; 13, connecting rod; 14, bearing column; 141, air passing hole; 142, air return hole; 15, air blocking ball; 16, ball pressing spring; 17, second elastic capsule; 18, bellows; 19, limiting ring. Detailed implementation manners

[0028] The following will Figures 1-5 further describe the present application in detail.

[0029] The embodiment of the present application discloses a jaw crusher for mine ore mining.

[0030] Referring to Figure 1 , the jaw crusher for mine ore mining includes a chassis 1 with a hollow interior, a moving crushing plate 2 arranged in the chassis 1 and a stationary crushing plate (not shown in the figure), and a crushing cavity for crushing stones is left between the moving crushing plate 2 and the stationary crushing plate.

[0031] Referring to Figure 1 and Figure 2 , a set of crushing components are respectively arranged on both sides of the chassis 1 relative to the crushing cavity. The crushing components include a supporting plate seat 4 hinged on the chassis 1, a hammering part 5 arranged on the supporting plate seat 4 and used for hammering stones, and an electric driving part used for driving the supporting plate seat 4 to rotate forward and backward.

[0032] Referring to Figure 1 and Figure 2 , the hammering part 5 includes a telescopic hammer sleeve 51 hinged on the chassis 1 and located above the supporting plate seat 4, and a hammer handle 52 slidably passing through the telescopic hammer sleeve 51. One end of the hammer handle 52 is welded with a hammer head 53 made of metal, and the other end is tied with a position adjustment wire 54.

[0033] A brake motor 55 electrically connected to the control system is bolted to the position outside the chassis 1 and below the supporting plate seat 4. The brake motor 55 is a forward and reverse servo motor in the prior art. The output shaft of the brake motor 55 is coaxially connected with a first wire winding rod 56 through a coupling, and the position adjustment wire 54 is wound around the first wire winding rod 56.

[0034] Referring toFigure 1 And Figure 2 , the worker observes the position of the stone relative to the above-mentioned crushing cavity in advance, and then starts the brake motor 55 through the control system. The output shaft of the brake motor 55 drives the first winding rod 56 to rotate, and then the position-adjusting wire 54 is wound and unwound.

[0035] When the electric driving part drives the supporting plate seat 4 to rotate, during the rotation of the hammer head 53 and the hammer handle 52, under the action of centrifugal force, they will displace relative to the telescopic hammer sleeve 51 until the position-adjusting wire 54 is tightened. The telescopic hammer sleeve 51 disengages from the supporting plate seat 4, so that the hammer head 53 can rotate to hammer the stone.

[0036] By pre-adjusting the length of the position-adjusting wire 54 that is pre-released, the hammering position of the hammer head 53 is adjusted, which is applicable to the crushing of stones at different positions between the movable crushing plate 2 and the static crushing plate.

[0037] Referring to Figure 2 and Figure 3 , the electric driving part includes a driving motor 61 bolted outside the chassis 1 and electrically connected to the control system, a second winding rod 62 coaxially arranged on the output shaft of the driving motor 61, and a reset wire 63 wound around the second winding rod 62. The other end of the reset wire 63 relative to the second winding rod 62 is tied to the hammer handle 52.

[0038] Referring to Figure 2 , a jacket tube 7 is hinged at the bottom of the supporting plate seat 4, and an inner telescopic rod 8 is hinged to the outer wall of the chassis 1 below the supporting plate seat 4. The jacket tube 7 is slidably sleeved outside the inner telescopic rod 8, and a pre-support compression spring 64 is sleeved outside the jacket tube 7 and the inner telescopic rod 8 together.

[0039] Referring to Figure 2 , when the second winding rod 62 winds up the reset wire 63, the supporting plate seat 4 is pulled to rotate, and the supporting plate seat 4 cooperates with the outer wall of the chassis 1 to squeeze the pre-support compression spring 64 on the jacket tube 7 and the inner telescopic rod 8. When the reset wire 63 is unwound, the pre-support compression spring 64 restores its deformation, and its deformation force pushes the supporting plate seat 4 to rotate in the reverse direction, thereby realizing the hammering action of the hammering part 5.

[0040] Referring to Figure 1 and Figure 2 , if the second winding rod 62 is always connected to the output shaft of the driving motor 61, when the reset wire 63 is pulled out, the output shaft of the driving motor 61 will be suddenly stressed in the reverse direction. Over time, the driving motor 61 is prone to damage.

[0041] Referring to Figure 3 , Figure 4 and Figure 5, in view of the above problems, a telescopic head 9 is slidably inserted through the end of the second winding rod 62. The telescopic head 9 is inserted and matched with the output shaft of the driving motor 61, and a driving part for driving the telescopic head 9 to reciprocate axially along it is arranged on the second winding rod 62.

[0042] Refer to Figure 3 , Figure 4 and Figure 5 , the second winding rod 62 includes a rod body 621 with a hollow interior and closed ends at both ends. The telescopic head 9 is located at one end of the rod body 621. Two pressing plates 622 parallel to it are placed inside the rod body 621. A first elastic bladder 10 is placed between the two pressing plates 622, and the first elastic bladder 10 is filled with air.

[0043] Refer to Figure 3 , Figure 4 and Figure 5 , a plurality of reset compression springs 11 are propped against the inner wall of the rod body 621 on the opposite sides of the two pressing plates 622 respectively. A plurality of struts 624 that slide out of the rod body 621 and are welded with winding arc plates 623 are integrally formed on the side of the pressing plate 622 facing away from the corresponding reset compression spring 11.

[0044] Refer to Figure 3 , Figure 4 and Figure 5 , the driving part includes a turntable 12 rotatably mounted inside the rod body 621. Connecting rods 13 are hinged on the turntable 12 and correspond to the two pressing plates 622 one by one. The hinged part of the connecting rod 13 and the turntable 12 is far from the axis of the turntable 12. An air vent hole 121 is coaxially opened between the two ends of the turntable 12, and the air vent hole 121 is communicated with the first elastic bladder 10.

[0045] Refer to Figure 3 , Figure 4 and Figure 5 , the driving part further includes a bearing column 14 bolted inside the rod body 621. One end of the bearing column 14 is closely attached to the turntable 12. A limiting ring 19 is coaxially rotatably sleeved outside the bearing column 14 and the turntable 12, and the limiting ring 19 forces the bearing column 14 and the turntable 12 to always be in a coaxial state.

[0046] Refer to Figure 3 , Figure 4 and Figure 5 , a conical air passing hole 141 is opened between the two ends of the bearing column 14. The smaller diameter end of the air passing hole 141 is closely attached to the turntable 12 and is communicated with the air vent hole 121. A blocking balloon 15 is placed near the smaller diameter end inside the air passing hole 141, and a ball pressing spring 16 is propped between the blocking balloon 15 and the larger diameter end of the air passing hole 141.

[0047] Refer to Figure 3 , Figure 4 and Figure 5, an air return hole 142 is also opened between the two ends of the bearing column 14. An air return groove 122 is radially opened on one side of the turntable 12 close to the bearing column 14. One end of the air return groove 122 is communicated with the ventilation hole 121, and the other end is used to communicate with the air return hole 142.

[0048] Refer to Figure 3 , Figure 4 and Figure 5 , the cross-section of the telescopic head 9 is T-shaped. A second elastic bladder 17 is placed between the telescopic head 9 and the closed end of the rod body 621. An air inlet / outlet hole 91 communicated with the second elastic bladder 17 is opened in the telescopic head 9. The other end of the air inlet / outlet hole 91 relative to the second elastic bladder 17 is communicated with the ventilation hole 121 and the air return hole 142 through a corrugated pipe 18.

[0049] Refer to Figure 3 , Figure 4 and Figure 5 , when the second winding rod 62 rotates to wind up the reset draw wire 63, the deformation force of the pre-support compression spring 64 acts on the winding arc piece 623 in the reverse direction through the reset draw wire 63, and the winding arc piece 623 gradually approaches the outer wall of the rod body 621. In this way, the two pressing plates 622 cooperate to squeeze the first elastic bladder 10.

[0050] At the same time, the connecting rod 13 drives the turntable 12 to rotate under the action of the pressing plate 622. The air return groove 122 on the turntable 12 rotates to be circumferentially misaligned with the air return hole 142. At this time, the gas in the first elastic bladder 10 is pressed to push open the plugging balloon 15, and enters the second elastic bladder 17 through the ventilation hole 121, the air passing hole 141, the corrugated pipe 18 and the air inlet / outlet hole 91. The second elastic bladder 17 expands and then pushes the telescopic head 9 to disengage from the plug-in fit with the output shaft of the driving motor 61.

[0051] Refer to Figure 3 , Figure 4 and Figure 5 , and when the second winding rod 62 pays out the wire, the reset compression spring 11 pushes the winding arc piece 623 away from the outer wall of the rod body 621, and the two pressing plates 622 move away from each other in the opposite direction. The pressing plate 622 drives the turntable 12 to reverse through the connecting rod 13. During this process, the ball pressing spring 16 pushes the plugging balloon 15 to keep plugging the air passing hole 141.

[0052] Until the air return groove 122 on the turntable 12 reverses to be re-connected with the air return hole 142, the air in the second elastic bladder 17 will flow back to the first elastic bladder 10 in sequence through the air inlet / outlet hole 91, the corrugated pipe 18, the air return hole 142, the air return groove 122 and the ventilation hole 121.

[0053] The above structure realizes the delayed reflux of gas, ensures that the reset draw wire 63 on the second winding rod 62 is fully released, and then the telescopic head 9 resumes the plug-in fit with the output shaft of the driving motor 61.

[0054] The implementation principle of the jaw crusher for mine ore mining in the embodiments of the present application is as follows: Workers first observe the position of the stone relative to the crushing cavity, and then start the brake motor 55 through the control system. The output shaft of the brake motor 55 drives the first winding rod 56 to rotate, thereby realizing the winding and unwinding of the position adjustment wire 54.

[0055] The control system starts the drive motor 61. The output shaft of the drive motor 61 drives the second winding rod 62 to rotate. The second winding rod 62 winds up the reset wire 63, and the supporting plate seat 4 cooperates with the outer wall of the chassis 1 to squeeze it against the deformation force of the pre-support compression spring 64.

[0056] During this process, the deformation force of the pre-support compression spring 64 acts on the winding arc plate 623 in the reverse direction through the reset wire 63. The winding arc plate 623 gradually approaches the outer wall of the rod body 621, and thus the two pressing plates 622 cooperate to squeeze the first elastic bladder 10.

[0057] At the same time, the connecting rod 13 drives the turntable 12 to rotate under the action of the pressing plate 622. The air return groove 122 on the turntable 12 rotates to be circumferentially misaligned with the air return hole 142. At this time, the gas in the first elastic bladder 10 is pressed to push open the plugging balloon 15, and enters the second elastic bladder 17 through the ventilation hole 121, the air passing hole 141, the corrugated pipe 18 and the air inlet and outlet hole 91. The second elastic bladder 17 expands and then pushes the telescopic head 9 to disengage from the plug-in fit with the output shaft of the drive motor 61.

[0058] The drive motor 61 stops working. The pre-support compression spring 64 pushes the supporting plate seat 4 to reverse. During the rotation of the hammer head 53 and the hammer handle 52, under the action of the centrifugal force, they will displace relative to the telescopic hammer sleeve 51 until the position adjustment wire 54 is tightened. The telescopic hammer sleeve 51 disengages from the supporting plate seat 4, and thus the hammer head 53 rotates to hammer the stone.

[0059] Similarly, during this process, the reset compression spring 11 pushes the winding arc plate 623 away from the outer wall of the rod body 621, and the two pressing plates 622 move away from each other. The pressing plate 622 drives the turntable 12 to reverse through the connecting rod 13. During this process, the ball pressing spring 16 pushes the plugging balloon 15 to keep plugging the air passing hole 141.

[0060] Until the air return groove 122 on the turntable 12 reverses to communicate with the air return hole 142 again, the air in the second elastic bladder 17 will flow back to the first elastic bladder 10 in sequence through the air inlet and outlet hole 91, the corrugated pipe 18, the air return hole 142, the air return groove 122, and the ventilation hole 121, and the telescopic head 9 resumes the plug-in fit with the output shaft of the drive motor 61.

[0061] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A jaw crusher for mine ore mining, comprising a machine case (1) with a hollow interior, a movable crushing plate (2) arranged in the machine case (1), and a stationary crushing plate, characterized in that: A supporting plate seat (4) is hinged to the chassis (1), a hammering part (5) for hammering large stones is arranged on the supporting plate seat (4), and an electric driving part for driving the supporting plate seat (4) to rotate forward and backward is also arranged outside the chassis (1).

2. The jaw crusher for mine ore mining according to claim 1, wherein: The hammering part (5) includes a telescopic hammer sleeve (51) hinged to the chassis (1) and located above the supporting plate seat (4). A hammer handle (52) is slidably inserted into the telescopic hammer sleeve (51). One end of the hammer handle (52) is provided with a hammer head (53), and the other end is tied with an adjustment wire (54). A brake motor (55) electrically connected to the control system is arranged outside the chassis (1). A first wire winding rod (56) is coaxially arranged on the output shaft of the brake motor (55). The adjustment wire (54) is wound around the first wire winding rod (56).

3. The jaw crusher for mine ore mining according to claim 2, characterized in that: The electric driving part includes a driving motor (61) arranged outside the chassis (1) and electrically connected to the control system, a second wire winding rod (62) coaxially arranged on the output shaft of the driving motor (61), and a reset wire (63) wound around the second wire winding rod (62). The other end of the reset wire (63) relative to the second wire winding rod (62) is tied to the hammer handle (52). A pre-support compression spring (64) is propped between the bottom of the supporting plate seat (4) and the outer wall of the chassis (1).

4. The jaw crusher for mine mining according to claim 3, wherein: An outer sleeve (7) is hinged to the bottom of the supporting plate seat (4). An inner telescopic rod (8) is hinged to the outer wall of the chassis (1) below the supporting plate seat (4). The outer sleeve (7) is slidably sleeved outside the inner telescopic rod (8). The pre-support compression spring (64) is sleeved outside the outer sleeve (7) and the inner telescopic rod (8).

5. The jaw crusher for mine excavation according to claim 3, wherein: A telescopic head (9) is slidably inserted into the end of the second wire winding rod (62). The telescopic head (9) is inserted and matched with the output shaft of the driving motor (61). A driving part for driving the telescopic head (9) to reciprocate along its axis direction is arranged on the second wire winding rod (62).

6. The jaw crusher for mine ore mining according to claim 5, characterized in that: The second wire winding rod (62) includes a rod body (621) with a hollow interior and closed ends, and two pressing plates (622) slidably arranged in the rod body (621) and parallel to it. A first elastic capsule (10) is placed between the two pressing plates (622). A reset compression spring (11) is propped between the opposite sides of the two pressing plates (622) and the inner wall of the rod body (621). A support column (624) which slides out of the rod body (621) and is connected with a wire winding arc piece (623) is arranged on the side of the pressing plate (622) facing away from the corresponding reset compression spring (11). The driving part includes a turntable (12) rotatably mounted in the rod body (621). Connecting rods (13) which are hinged to the two pressing plates (622) one by one are hinged to the turntable (12). The hinged position of the connecting rod (13) and the turntable (12) is far from the axis of the turntable (12). A load-bearing column (14) is arranged inside the rod body (621). A conical air passage hole (141) is opened between the two ends of the load-bearing column (14). A blocking balloon (15) is placed near the smaller-diameter end of the air passage hole (141). A ball pressing spring (16) is propped between the blocking balloon (15) and the larger-diameter end of the air passage hole (141). One side of the load-bearing column (14) relative to the smaller-diameter end of the air passage hole (141) is in close contact with the turntable (12). An air vent hole (121) is axially opened on the turntable (12). One end of the air vent hole (121) is communicated with the first elastic capsule (10), and the other end is communicated with the air passage hole (141). A return air hole (142) is also opened between the two ends of the load-bearing column (14). A return air groove (122) is radially opened on one side of the turntable (12) in close contact with the load-bearing column (14). One end of the return air groove (122) is communicated with the air vent hole (121), and the other end is used to be communicated with the return air hole (142). A second elastic capsule (17) is placed between the telescopic head (9) and the closed end of the rod body (621). An air inlet and outlet hole (91) communicated with the second elastic capsule (17) is opened on the telescopic head (9). The other end of the air inlet and outlet hole (91) relative to the second elastic capsule (17) is communicated with the air vent hole (121) and the return air hole (142) through a corrugated pipe (18).

7. The jaw crusher for mine mining according to claim 6, characterized in that: A limiting ring (19) is coaxially and rotatably sleeved outside the load-bearing column (14) and the turntable (12).

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