Impact-resistant coal gangue crusher

Abstract

The application relates to a kind of coal gangue crushers of impact resistance, belong to coal gangue crushing equipment technical field;Including support frame, support frame upper end is fixed with crusher shell and hammer crusher shell, the inside of crusher shell is provided with crushing mechanism, the inside of hammer crusher shell is provided with hammering mechanism;Crushing mechanism includes upper drive shaft, fixed jaw plate, moving jaw plate, upper drive shaft is rotatably arranged in the inside of crusher shell, eccentric protrusion is fixedly arranged in the middle of upper drive shaft, fixed jaw plate is fixedly arranged on the inner wall of the front side of crusher shell, and the upper end of moving jaw plate is sleeved on the outside of eccentric protrusion;Hammering mechanism includes lower drive shaft, lengthening barrel, tool holder barrel, lower drive shaft is rotatably arranged in the inside of hammering mechanism, lengthening barrel is slidably sleeved on the outside of lower drive shaft, tool holder barrel is slidably sleeved on the outside of lengthening barrel, and hammer head is arranged on tool holder barrel;Lower drive shaft and upper drive shaft are connected by belt transmission mechanism;Solve the problem of inconvenient tool changing of current coal gangue crusher.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of coal gangue crushing equipment, and particularly relates to an impact-resistant coal gangue crusher. BACKGROUND

[0002] Nowadays, as the depth of coal mining is deeper and the geological conditions such as faults of the mining face are more complex, the gangue mixed in the coal seam is more complex; the hardness of the coal gangue and fault rock is larger and the size of the rock is larger; this results in that the original crushing system cannot meet the crushing requirements of the super-large and super-hard rock, the service life of the underground crusher is sharply reduced, the hard rock and coal block generate a great impact force on the crushing shaft group, the cutter holder is easily damaged; in the underground working face, the replacement of the cutter holder is a work with a high risk coefficient because the replacement needs the staff to work in a completely closed and narrow space, and there is a great safety hazard; the original equipment has a serious dust and a large noise when working, which seriously affects the working environment; the original equipment has a poor quality of the product because various particles are mixed when discharging; therefore, the present application improves the existing equipment aiming at the above problems. SUMMARY

[0003] The present application overcomes the shortcomings of the prior art and provides an impact-resistant coal gangue crusher; the problem of inconvenient cutter replacement of the current coal gangue crusher is solved.

[0004] In order to achieve the above purpose, the present application is realized by the following technical scheme.

[0005] An impact-resistant coal gangue crusher, comprising a support frame, an upper and lower distributed crusher shell and a hammer crusher shell fixedly arranged at the upper end of the support frame, a crushing mechanism arranged in the crusher shell, and a hammer crushing mechanism arranged in the hammer crusher shell; the crushing mechanism comprises an upper drive shaft, a fixed jaw plate and a movable jaw plate, the upper drive shaft is rotationally arranged in the crusher shell, an eccentric protrusion is fixedly arranged in the middle of the upper drive shaft, the fixed jaw plate is fixedly arranged on the inner wall of the front side of the crusher shell, and the movable jaw plate is sleeved on the outer side of the eccentric protrusion in the middle of the upper drive shaft; the hammer crushing mechanism comprises a lower drive shaft, an elongated barrel and a cutter holder barrel, the lower drive shaft is rotationally arranged in the hammer crushing mechanism, the elongated barrel is slidingly sleeved on the outer side of the lower drive shaft, the cutter holder barrel is slidingly sleeved on the outer side of the elongated barrel, and a hammer head is arranged on the cutter holder barrel; the lower drive shaft and the upper drive shaft are connected through a belt transmission mechanism.

[0006] Further, the support frame comprises a support plate, and a plurality of vertical support legs are fixedly arranged at the lower end of the support plate; a discharging opening is arranged on the support plate; the hammer crusher shell is a square cylindrical structure with open upper and lower ends, and the lower end of the hammer crusher shell is fixedly arranged at the upper end surface of the support plate, and the opening at the lower end of the hammer crusher shell corresponds to the discharging opening on the support plate; the crusher shell is a cylindrical structure with open upper and lower ends, and the lower end opening of the crusher shell is in abutment with the upper end opening of the hammer crusher shell.

[0007] Further, a horizontal top plate is fixedly arranged at the upper end opening of the crusher shell, a feeding opening is arranged on the top plate, a feeding pipe is fixedly arranged at the upper end of the feeding opening, and a baffle is rotatably arranged at the inlet of the feeding pipe; soundproof plates are arranged inside the side walls around the crusher shell; wear-resistant plates are arranged on the inner walls around the crusher shell; a bearing seat is arranged on each of the side walls on the left and right of the crusher shell, and the two ends of the upper driving shaft are arranged inside the two bearing seats.

[0008] Further, the movable jaw plate is arranged at the rear side of the fixed jaw plate, and a rebound assembly is arranged between the lower end of the movable jaw plate and the rear inner wall of the crusher shell; the rebound assembly comprises an adjusting seat, a sliding seat, a sliding frame, a stabilizing plate, a rebound rod, a rebound spring, a hinged seat, a hinged rod, a locking bolt, and a mounting seat; an adjusting seat is fixedly arranged on the rear inner wall of the crusher shell, a sliding groove is arranged at the front end of the adjusting seat, a sliding seat is slidably arranged inside the sliding groove, the front end of the sliding seat extends to the outside of the sliding groove of the adjusting seat, and a stabilizing plate is rotatably arranged at the front end of the sliding seat; a sliding frame is fixedly arranged at the lower end of the movable jaw plate, a front-rear through sliding groove is arranged inside the sliding frame, and the front end of the stabilizing plate is slidably inserted into the sliding groove of the sliding frame; a limiting plate is fixedly arranged at the front end of the stabilizing plate, and the limiting plate is located at the front side of the sliding frame; a mounting seat is fixedly arranged at one side of the front end of the adjusting seat, a hinged rod is rotatably arranged at the outer end of the mounting seat, the end of the hinged rod away from the mounting seat is rotatably connected with the side surface of the sliding seat, a waist-shaped groove is arranged at the middle of the hinged rod, a locking bolt is screwed on the mounting seat, a hinged seat is fixedly arranged at the end of the locking bolt, an acting rod is fixedly arranged inside the hinged seat, and the acting rod is inserted into the waist-shaped groove of the hinged rod; two fixed plates are fixedly arranged at the lower end of the adjusting seat, a rebound rod is slidably inserted into the two fixed plates, and the front end of the rebound rod is hingedly connected with the lower end of the sliding frame; two acting rings are fixedly arranged on the rebound rod, the acting ring at the front side is located at the rear end of the fixed plate at the front side, and the acting ring at the rear side is located at the rear end of the fixed plate at the rear side; a rebound spring is sleeved on the outer side of the rebound rod, the front end of the rebound spring is connected with the acting ring at the front side, and the rear end of the rebound spring is connected with the front end surface of the fixed plate at the rear side.

[0009] Further, the belt drive mechanism comprises an upper side pulley, a lower side pulley and a transmission belt; both ends of the upper side driving shaft extend to the outside of the crusher shell, and one end of the upper side driving shaft is fixedly provided with a flywheel; the other end of the upper side driving shaft is fixedly provided with the upper side pulley; one end of the lower side driving shaft extends to the outside of the hammer crusher shell; the lower side pulley is fixedly arranged on the extending end of the lower side driving shaft, and the lower side pulley is connected with the upper side pulley through the transmission belt; the lower side pulley is further connected with the driving device through a driving belt.

[0010] Further, the hammer crushing mechanism further comprises a sieve frame, a counterattack frame, a first motor, a first screw rod, a second motor, a second screw rod and a comb-shaped push plate; the counterattack frame is arranged on the upper end of the cutter holder barrel, and the sieve frame is arranged on the lower end of the cutter holder barrel; the counterattack frame is a circular arc frame structure, and a counterattack plate is fixedly arranged on the inner side of the counterattack frame; the sieve frame is a circular arc frame structure, and a row of equidistantly arranged sieve strips are fixedly arranged on the inner side of the sieve frame; two rotating seats are fixedly arranged on the support frame; the first motor and the second motor are fixedly arranged on the side wall of the hammer crusher shell in front and back distribution; the first screw rod and the second screw rod are rotatably arranged on the inside of the hammer crusher shell; one end of the first screw rod is fixedly connected with the output shaft of the first motor, and the other end of the first screw rod is rotatably connected with the front rotating seat; one end of the second screw rod is fixedly connected with the output shaft of the second motor, and the other end of the second screw rod is rotatably connected with the rear rotating seat; one end of the first screw rod and one end of the second screw rod extend to the outside of the hammer crusher shell; the first screw rod is provided with a first threaded section in the area outside the hammer crusher shell, and the second screw rod is provided with a second threaded section in the area inside the hammer crusher shell; an arc-shaped comb-shaped push plate is screwed on the second threaded section of the second screw rod; the comb-shaped push plate is located inside the sieve frame and is in sliding contact with the sieve strips; a row of comb teeth are arranged on the comb-shaped push plate, and the row of comb teeth are inserted into the gaps between the row of sieve strips.

[0011] Further, the hammer crushing mechanism further comprises a pin shaft, a sleeve plate, a connecting rod and a guide sleeve; a circle of circular array arranged outer side pin holes are arranged on the lower side pulley; a circle of circular array arranged inner side pin holes are arranged on the side end face of the cutter holder barrel close to the lower side pulley; the inner side pin holes on the cutter holder barrel correspond to the outer side pin holes on the lower side pulley one by one; the same pin shaft is inserted into each corresponding inner side pin hole and outer side pin hole; a knife changing opening is arranged on the side wall of the hammer crusher shell away from the lower side pulley; one end of the lengthened barrel away from the lower side pulley extends to the outside of the hammer crusher shell through the knife changing opening; a circular sleeve plate is fixedly arranged on the end of the lengthened barrel away from the lower side pulley; two front and back symmetrical connecting rods are fixedly arranged on the lower end of the sleeve plate; a guide sleeve is fixedly arranged on the lower end of each connecting rod; the front guide sleeve is screwed on the outside of the first threaded section of the first screw rod, and the rear guide sleeve is slidingly sleeved on the outside of the second screw rod.

[0012] Further, the hammering mechanism further comprises a cutter holder plate, a circular ring-shaped cutter holder plate is sleeved on the outer side of the extension cylinder, the cutter holder plate is located between the hammering mechanism shell and the sleeve plate, the sleeve plate is fixedly connected with the cutter holder plate through a circle of bolts, the cutter holder plate is fixedly connected with the hammering mechanism shell through a circle of bolts, the cutter holder plate is rotatably connected with the cutter holder plate at the end away from the lower belt pulley, a plurality of hammer heads are arranged on the outer side of the cutter holder cylinder, the plurality of hammer heads in each circle are arranged in a circular array along the axis of the cutter holder cylinder, each hammer head is rotatably arranged on the outer side of the cutter holder cylinder, and wear-resistant cloth is arranged between adjacent two hammer heads.

[0013] Further, a screening mechanism is arranged in the support frame, the screening mechanism comprises a first material pouring box, a second material pouring box and a sieve plate, the first material pouring box and the second material pouring box are fixedly arranged in the support frame and are distributed in an up-down mode, the first material pouring box and the second material pouring box each comprise a bottom plate, a left side plate and a rear side plate, the lower ends of the left side plate and the right side plate are fixedly connected with the left and right ends of the bottom plate, the front end of the bottom plate of the first material pouring box is downwardly inclined, and the rear end of the bottom plate of the second material pouring box is downwardly inclined, one frame strip is fixedly arranged on the inner wall of the upper end of the left side plate and the upper end of the right side plate of the first material pouring box, one frame strip is fixedly arranged on the inner wall of the upper end of the left side plate and the upper end of the right side plate of the second material pouring box, a sieve plate is arranged on the upper ends of the two frame strips of the first material pouring box, a sieve plate is arranged on the upper ends of the two frame strips of the second material pouring box, the rear end of the sieve plate on the first material pouring box is downwardly inclined, the front end of the sieve plate on the second material pouring box is downwardly inclined, and the rear end of the sieve plate on the first material pouring box is located above the middle of the sieve plate on the second material pouring box.

[0014] Further, the screening mechanism further comprises a third motor, a rotating shaft, a vibration spring and a guide column, the frame strip is provided with a plug-in hole, a guide column is slidably plugged in each plug-in hole, the upper end of the guide column is fixedly connected with the lower end surface of the sieve plate, the vibration spring is sleeved on the outer side of the guide column and located below the frame strip, the upper end of the vibration spring is fixedly connected with the lower end surface of the frame strip, and the lower end of the vibration spring is fixedly connected with the lower end of the guide column, one third motor is fixedly arranged on the outer wall of the left side plate of the first material pouring box and the second material pouring box, a rotating shaft is fixedly arranged on the output shaft of the third motor and located on the inner side of the first material pouring box and the second material pouring box, a first convex strip is fixedly arranged on the outer side surface of the rotating shaft, a second convex strip is fixedly arranged on the lower end surface of the sieve plate, and the second convex strip is in contact with the rotating shaft.

[0015] The beneficial effects of the present application relative to the prior art are as follows:

[0016] (1) The present application blocks the diffusion of coal gangue and dust generated during crushing out of the crusher through the cooperation of the feed pipe and the baffle, prevents the stone dust from polluting the environment, solves the problem of dust; through the cooperation of the soundproof board and the crusher shell, it is convenient to absorb the noise during crushing coal gangue, realizes the ability of reducing working noise, solves the problem of noise; through the cooperation of the fixed jaw plate, the movable jaw plate and the rebound assembly, it is convenient to preliminarily clamp and crush the large block of coal gangue into the crusher, realizes the ability of crushing large block of coal gangue, solves the problem of difficult crushing of large block of coal gangue; through the cooperation of the knife holder cylinder, the hammer head and the counterattack frame, it is convenient to make the coal gangue hit back and forth so as to finely crush the coal gangue, improve the crushing effect and crushing uniformity of the coal gangue, realize the ability of finely crushing the coal gangue, solve the problem of insufficient crushing degree of the existing equipment; through the cooperation of the first motor and the first screw rod, it is convenient to drive the lengthened cylinder to extend out of the crusher, so that the knife holder cylinder can be drawn out and erected outside the crusher, improve the safety and convenience of tool changing, realize the ability of quick tool changing, solve the problem of inconvenient and dangerous tool changing of the existing equipment.

[0017] (2) The present application is convenient for driving the comb-shaped push plate to slide horizontally in the gap between the screen bars through the cooperation of the second motor and the second screw rod, so as to clean the material stuck on the screen frame, avoid the material from blocking the screen frame, solve the problem of difficult falling of the material; through the cooperation of the hammer head and the wear-resistant cloth, it is convenient for the hammer head to support the wear-resistant cloth when the crusher is running, so as to prevent the material from being stuck on the knife holder cylinder and rebounding the material on the hammer handle striking path, avoid the material from wearing the knife holder cylinder and the hammer handle, and the material from being on the hammer handle rotating path for a long time, solve the problem of material impacting the knife holder cylinder and difficult to enter the effective crushing path of the hammer head during the crushing process; by setting the screening mechanism, it is convenient to screen various particle coal gangues, realize the ability of screening and crushing coal gangue, solve the problem of mixed impurities of coal gangue particles during discharging. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described in detail below with reference to the accompanying drawings:

[0019] Figure 1 is a structure schematic view of the whole of the present application;

[0020] Figure 2 is a side view of the whole of the present application;

[0021] Figure 3 is a rear view of the whole of the present application;

[0022] Figure 4 is a connection schematic view of the top plate and the feed pipe;

[0023] Figure 5 is a structure schematic view of the crusher shell;

[0024] Figure 6is a schematic view of the internal structure of the crusher shell;

[0025] Figure 7 is a schematic view of the connection of the crusher shell with the fixed jaw plate, the movable jaw plate and the rebound assembly;

[0026] Figure 8 is a schematic view of the connection of the fixed jaw plate, the movable jaw plate and the rebound assembly Figure 1 ;

[0027] Figure 9 is Figure 8 a partial enlarged view of position A in FIG. 6;

[0028] Figure 10 is a schematic view of the connection of the fixed jaw plate, the movable jaw plate and the rebound assembly Figure 2 ;

[0029] Figure 11 is Figure 10 a partial enlarged view of position B in FIG. 7;

[0030] Figure 12 is a schematic view of the connection of the fixed jaw plate, the movable jaw plate and the rebound assembly Figure 3 ;

[0031] Figure 13 is Figure 12 a partial enlarged view of position C in FIG. 8;

[0032] Figure 14 is a schematic view of the connection of the upper driving shaft and the upper pulley;

[0033] Figure 15 is a partial structure schematic view of the hammering mechanism Figure 1 ;

[0034] Figure 16 is a partial structure schematic view of the hammering mechanism Figure 2 ;

[0035] Figure 17 is a schematic view of the relative position of the counterattack frame and the screen frame;

[0036] Figure 18 is a schematic view of the connection between the cutter frame cylinder and the hammer head and the wear cloth;

[0037] Figure 19 is a schematic view of the structure of the extended cylinder being pulled out of the hammer crusher shell;

[0038] Figure 20 is a schematic view of the structure of the cutter frame cylinder being pulled out of the hammer crusher shell;

[0039] Figure 21 is a schematic view of the connection between the screen frame and the comb-shaped push plate;

[0040] Figure 22 is a schematic diagram of the connection between the support frame and the screening mechanism;

[0041] Figure 23 is a schematic diagram of the internal structure of the first and second pouring boxes;

[0042] Figure 24 is a schematic diagram of the connection between the third motor, the rotating shaft, the screen plate and the frame strip;

[0043] 1 is a support frame, 2 is a hammer crusher shell, 3 is a crusher shell, 4 is a top plate, 5 is a feeding pipe, 6 is a baffle, 7 is a soundproof board, 8 is a wear-resistant plate, 9 is a bearing seat, 10 is an upper driving shaft, 11 is a moving jaw plate, 12 is a fixed jaw plate, 13 is an adjusting seat, 14 is an upper belt pulley, 15 is an eccentric protrusion, 16 is a screen frame, 17 is a counterattack frame, 18 is a screen strip, 19 is a counterattack plate, 20 is a lower belt pulley, 21 is a sleeve plate, 22 is a knife holder cylinder, 23 is a hammer head, 24 is a knife holder plate, 25 is a first motor, 26 is a first screw rod, 27 is a first pouring box, 28 is a second pouring box, 29 is a frame strip, 30 is a screen plate, 31 is a third motor, 32 is a rotating shaft, 33 is a second protrusion, 34 is a guide column, 35 is a vibration spring, 36 is a second motor, 37 is a second screw rod, 38 is a rotating seat, 39 is a comb-shaped push plate, 40 is a wear-resistant cloth, 41 is a sliding seat, 42 is a stabilizing plate, 43 is a sliding frame, 44 is a limiting plate, 45 is a mounting seat, 46 is a lower driving shaft, 47 is a bolt shaft, 48 is an extension cylinder, 49 is a connecting rod, 50 is a guide sleeve, 51 is a hinged rod, 52 is a locking bolt, 53 is a hinged seat, 54 is a rebound rod, 55 is a fixed plate, 56 is a rebound spring. DETAILED DESCRIPTION

[0044] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, further detailed description of the present application is made in combination with the embodiments and the drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application. The technical solutions of the present application are described in detail below in combination with the embodiments and the drawings, but the protection scope is not limited thereto.

[0045] As Figure 1As shown in FIG. 24, the application provides a kind of impact-resistant coal gangue crusher, including support frame 1, the upper end of support frame 1 is fixedly provided with upper and lower distribution crusher shell 3 and hammer crusher shell 2, the inside of crusher shell 3 is provided with crushing mechanism, and the inside of hammer crusher shell 2 is provided with hammer crushing mechanism;The crushing mechanism includes upper drive shaft 10, fixed jaw plate 12, moving jaw plate 11, upper drive shaft 10 is rotatably arranged in the inside of crusher shell 3, eccentric protrusion 15 is fixedly arranged in the middle of upper drive shaft 10, fixed jaw plate 12 is fixedly arranged on the inner wall of the front side of crusher shell 3, and the upper end of moving jaw plate 11 is sleeved on the outside of eccentric protrusion 15 in the middle of upper drive shaft 10;The hammer crushing mechanism includes lower drive shaft 46, lengthening barrel 48 and tool holder barrel 22, lower drive shaft 46 is rotatably arranged in the inside of hammer crushing mechanism, lengthening barrel 48 is slidably sleeved on the outside of lower drive shaft 46, tool holder barrel 22 is slidably sleeved on the outside of lengthening barrel 48, and hammer head 23 is arranged on tool holder barrel 22;Lower drive shaft 46 and upper drive shaft 10 are connected by belt transmission mechanism.

[0046] The support frame 1 includes a support plate and support legs, the support plate is a horizontally arranged plate structure, and a plurality of vertical support legs are fixedly arranged at the lower end of the support plate. A square discharge opening is arranged on the support plate.

[0047] The hammer crusher shell 2 is a square cylindrical structure with openings at both upper and lower ends, the lower end of the hammer crusher shell 2 is fixedly arranged at the upper end surface of the support plate, and the opening at the lower end of the hammer crusher shell 2 corresponds to the discharge opening on the support plate.

[0048] The crusher shell 3 is a cylindrical structure with openings at both upper and lower ends, both upper and lower openings of the crusher shell 3 are square openings, and the upper opening of the crusher shell 3 is larger than the lower opening of the crusher shell 3. The lower opening of the crusher shell 3 is connected to the upper opening of the hammer crusher shell 2. A horizontal top plate 4 is fixedly arranged at the upper opening of the crusher shell 3, a feeding opening is arranged on the top plate 4, a feeding pipe 5 is fixedly arranged at the upper end of the feeding opening, the inlet of the feeding pipe 5 faces the front side, and a baffle 6 is rotatably arranged at the inlet of the feeding pipe 5. Hollow cavities are arranged in the side walls around the crusher shell 3, and soundproof plates 7 are arranged in the cavities. Mounting grooves are arranged on the inner walls around the crusher shell 3, and wear-resistant plates 8 are fixedly arranged in the mounting grooves. An upper drive shaft 10 is horizontally arranged along the left-right direction, both ends of the upper drive shaft 10 are arranged in the two bearing seats 9, and the upper drive shaft 10 is rotatable in the crusher shell 3 through the two bearing seats 9.

[0049] The movable jaw 11 is mounted behind the fixed jaw 12, with its lower end tilted forward. A rebound assembly is positioned between the lower end of the movable jaw 11 and the rear inner wall of the crusher housing 3. The rebound assembly comprises an adjustment seat 13, a sliding seat 41, a sliding frame 43, a stabilizing plate 42, a rebound rod 54, a rebound spring 56, a hinge seat 53, a hinge rod 51, a locking bolt 52, and a mounting seat 45. An adjustment seat 13 is fixedly mounted on the rear inner wall of the crusher housing 3. A sliding groove is provided at the front end of the adjustment seat 13, within which a sliding seat 41 is slidably mounted. The front end of the sliding seat 41 extends beyond the sliding groove of the adjustment seat 13, and a stabilizing plate 42 is rotatably mounted at the front end of the sliding seat 41. A sliding frame 43 is fixedly mounted behind the lower end of the movable jaw 11. A sliding groove is provided within the sliding frame 43, extending from front to back. The front end of the stabilizing plate 42 is slidably inserted into the groove of the sliding frame 43. A stop plate 44 is fixed to the front end of the stabilizing plate 42 and is located in front of the sliding frame 43. A mounting base 45 is fixed to one side of the front end of the adjustment base 13. A hinged rod 51 is pivotally mounted on one end of the mounting base 45. The end of the hinged rod 51, facing away from the mounting base 45, is pivotally connected to the side of the sliding base 41. Adjusting the angle of the hinged rod 51 relative to the mounting base 45 controls the sliding base 41 to slide within the adjustment base 13. A waist-shaped groove is defined in the middle of the hinged rod 51. A locking bolt 52 is threaded onto the mounting base 45. A hinged base 53 is fixed to the end of the locking bolt 52. An operating rod is fixed within the hinged base 53 and inserted into the waist-shaped groove of the hinged rod 51. Two front and rear fixing plates 55 are fixed to the lower end of the adjustment base 13. A rebound rod 54 is slidably mounted within the fixing plates 55. The front end of the rebound rod 54 is hinged to the lower end of the sliding frame 43. Two action rings are fixedly mounted on the rebound rod 54. The front action ring is located at the rear end of the front fixing plate 55, and the rear action ring is located at the rear end of the rear fixing plate 55. A rebound spring 56 is sleeved on the outside of the rebound rod 54. The front end of the rebound spring 56 is connected to the front action ring, and the rear end of the rebound spring 56 is connected to the front end of the rear fixing plate 55.

[0050] When the eccentric protrusion 15 on the upper driving shaft 10 drives the moving jaw plate 11 to move, the moving jaw plate 11 drives the stabilizing plate 42 to reciprocate around the front end of the sliding seat 41, and the front end of the stabilizing plate 42 reciprocates in the sliding frame 43, and the rebound rod 54 slides in the two fixed plates 55, and the rebound spring 56 is compressed and rebounded. When the position of the stabilizing plate 42 needs to be adjusted, the locking bolt 52 is rotated to move the hinged seat 53 forward and backward, the hinged seat 53 drives the action rod to slide forward and backward in the waist-shaped groove of the hinged rod 51, so that the hinged rod 51 rotates relative to the mounting seat 45, the angle of the hinged rod 51 relative to the mounting seat 45 changes, so that the sliding seat 41 slides forward and backward in the adjusting seat 13, and the adjusting seat 13 drives the stabilizing plate 42 to slide forward and backward, so that the position of the stabilizing plate 42 is adjusted.

[0051] The belt transmission mechanism comprises an upper belt pulley 14, a lower belt pulley 20, and a transmission belt. Both ends of the upper driving shaft 10 extend to the outside of the crusher shell 3, and one end of the upper driving shaft 10 is fixedly provided with a flywheel. The other end of the upper driving shaft 10 is fixedly provided with the upper belt pulley 14. One end of the lower driving shaft 46 extends to the outside of the hammer crusher shell 2. The lower belt pulley 20 is fixedly arranged at the end of the lower driving shaft 46, and the lower belt pulley 20 and the upper belt pulley 14 are connected by the transmission belt. The lower belt pulley 20 is also connected with a driving device by a driving belt. The driving device drives the lower belt pulley 20 to rotate through the driving belt, and the lower belt pulley 20 drives the lower driving shaft 46 to rotate. The lower belt pulley 20 drives the upper belt pulley 14 to rotate through the transmission belt, and the upper belt pulley 14 drives the upper driving shaft 10 to rotate.

[0052] The hammer mechanism further comprises a sieve frame 16, a counterattack frame 17, a sleeve plate 21, a knife holder plate 24, a first motor 25, a first screw rod 26, a second motor 36, and a second screw rod 37.

[0053] The counterattack frame 17 is arranged at the upper end of the knife holder barrel 22, and the sieve frame 16 is arranged at the lower end of the knife holder barrel 22. The counterattack frame 17 is a circular arc frame structure, and a counterattack plate 19 is fixedly arranged on the inner side of the counterattack frame 17. The sieve frame 16 is a circular arc frame structure, and a row of equidistantly arranged sieve strips 18 are fixedly arranged on the inner side of the sieve frame 16, and the length direction of the sieve strips 18 is parallel to the axis direction of the knife holder barrel 22.

[0054] The support frame 1 is fixed with two rotating seats 38 in front and back. The first motor 25 and the second motor 36 are fixed on the side wall of the hammer crusher shell 2 in front and back. The first screw rod 26 and the second screw rod 37 are rotatably arranged on the inside of the hammer crusher shell 2 in front and back. The first screw rod 26 and the second screw rod 37 are horizontally arranged along the left-right direction. One end of the first screw rod 26 is fixedly connected with the output shaft of the first motor 25, and the other end of the first screw rod 26 is rotatably connected with the front rotating seat 38. One end of the second screw rod 37 is fixedly connected with the output shaft of the second motor 36, and the other end of the second screw rod 37 is rotatably connected with the rear rotating seat 38. The ends of the first screw rod 26 and the second screw rod 37 close to the rotating seat 38 both extend to the outside of the hammer crusher shell 2. The first screw rod 26 is provided with a first threaded section in the area outside the hammer crusher shell 2, and the second screw rod 37 is provided with a second threaded section in the area inside the hammer crusher shell 2.

[0055] The second threaded section of the second screw rod 37 is screwed with a circular arc-shaped comb-shaped push plate 39. The comb-shaped push plate 39 is located inside the screen frame 16 and in sliding contact with the screen strips 18. The comb-shaped push plate 39 is provided with a row of comb teeth which are inserted into the gap of a row of screen strips 18. When the second motor 36 drives the second screw rod 37 to rotate, the comb-shaped push plate 39 is driven to slide along the second screw rod 37 because the comb-shaped push plate 39 is screwed with the second threaded section of the second screw rod 37. The comb teeth on the comb-shaped push plate 39 remove the coal gangue particles clamped between the screen strips 18.

[0056] The lower pulley 20 is provided with a circular array of outer pin holes. The inner pin holes of the cutter holder cylinder 22 are arranged in a circular array on the side end face close to the lower pulley 20. The inner pin holes of the cutter holder cylinder 22 correspond to the outer pin holes of the lower pulley 20 one by one. The same pin shaft 47 is inserted into each corresponding inner pin hole and outer pin hole. The cutter holder cylinder 22 is driven to rotate synchronously with the lower pulley 20 by the pin shaft 47.

[0057] A circular tool changing opening is arranged on the side wall of the hammer crusher shell 2 away from the lower side pulley 20, and the end of the lengthened barrel 48 away from the lower side pulley 20 extends outside the hammer crusher shell 2 through the tool changing opening; a circular sleeve plate 21 is fixedly arranged on the end of the lengthened barrel 48 away from the lower side pulley 20, and the sleeve plate 21 is located outside the hammer crusher shell 2. The sleeve plate 21 is located in a vertical plane in the front-rear direction. Two front-rear symmetrical connecting rods 49 are fixedly arranged on the lower end of the sleeve plate 21, and the lower ends of the two connecting rods 49 are respectively fixedly provided with a guide sleeve 50, wherein the front guide sleeve 50 is screwed to the outside of the first threaded section of the first screw rod 26, and the rear guide sleeve 50 is slidingly sleeved on the outside of the second screw rod 37. When the first motor 25 drives the first screw rod 26 to rotate, the front guide sleeve 50 is screwed to the first threaded section of the first screw rod 26, thereby driving the front guide sleeve 50 to slide along the first screw rod 26, and the front guide sleeve 50 drives the sleeve plate 21 to slide through the connecting rod 49, and the rear guide sleeve 50 cooperates with the second screw rod 37 to ensure stable sliding of the sleeve plate 21.

[0058] A circular ring-shaped tool holder plate 24 is slidingly sleeved on the outside of the lengthened barrel 48, and the tool holder plate 24 is located outside the hammer crusher shell 2 and between the hammer crusher shell 2 and the sleeve plate 21. The sleeve plate 21 is fixedly connected with the tool holder plate 24 by a circle of bolts. The tool holder plate 24 is fixedly connected with the hammer crusher shell 2 by a circle of bolts.

[0059] The end of the tool holder barrel 22 away from the lower side pulley 20 is rotationally connected to the tool holder plate 24. A plurality of hammers 23 are arranged on the outside of the tool holder barrel 22, and the plurality of hammers 23 are equidistantly arranged along the axis direction of the tool holder barrel 22; the plurality of hammers 23 in each circle are circularly arrayed along the axis of the tool holder barrel 22, and each hammer 23 is rotationally arranged on the outer side of the tool holder barrel 22, and a wear cloth 40 is arranged between adjacent two hammers 23.

[0060] A screening mechanism is arranged in the support frame 1, and the screening mechanism includes a first material pouring box 27, a second material pouring box 28, a screen plate 30, a third motor 31, a rotating shaft 32, a vibration spring 35, and a guide column 34.

[0061] The first pouring box 27 and the second pouring box 28 are fixedly arranged in the support frame 1 and are distributed upwards and downwards, and each of the first pouring box 27 and the second pouring box 28 comprises a bottom plate, a left side plate and a rear side plate, and the lower ends of the left side plate and the right side plate are fixedly connected with the left and right ends of the bottom plate. The front end of the bottom plate of the first pouring box 27 is downwardly inclined, and the rear end of the bottom plate of the second pouring box 28 is downwardly inclined. One shelf strip 29 is fixedly arranged on the upper end of the inner wall of the left side plate and the upper end of the inner wall of the right side plate of the first pouring box 27 respectively, and one shelf strip 29 is fixedly arranged on the upper end of the inner wall of the left side plate and the upper end of the inner wall of the right side plate of the second pouring box 28 respectively. One sieve plate 30 is arranged on the upper end of the two shelf strips 29 of the first pouring box 27, and one sieve plate 30 is arranged on the upper end of the two shelf strips 29 of the second pouring box 28. The rear end of the sieve plate 30 on the first pouring box 27 is downwardly inclined, the front end of the sieve plate 30 on the second pouring box 28 is downwardly inclined, and the rear end of the sieve plate 30 on the first pouring box 27 is located above the middle of the sieve plate 30 on the second pouring box 28.

[0062] The shelf strip 29 is provided with a plug hole, and a guide column 34 is slidably plugged in each plug hole. The upper end of the guide column 34 is fixedly connected with the lower end surface of the sieve plate 30. A vibration spring 35 is sleeved on the outer side of the guide column 34. The vibration spring 35 is located below the shelf strip 29. The upper end of the vibration spring 35 is fixedly connected with the lower end surface of the shelf strip 29, and the lower end of the vibration spring 35 is fixedly connected with the lower end of the guide column 34.

[0063] A third motor 31 is fixedly arranged on the left side plate outer wall of the first pouring box 27 and the second pouring box 28. A rotating shaft 32 is fixedly arranged on the output shaft of the third motor 31. The rotating shaft 32 is located on the inner side of the first pouring box 27 and the second pouring box 28. A first convex strip is fixedly arranged on the outer side surface of the rotating shaft 32. A second convex strip 33 is fixedly arranged on the lower end surface of the sieve plate 30. The second convex strip 33 is in contact with the rotating shaft 32.

[0064] When the third motor 31 on the first pouring box 27 and the second pouring box 28 rotates, the third motor 31 drives the rotating shaft 32 to rotate. When the first convex strip on the rotating shaft 32 is in contact with the second convex strip 33 on the sieve plate 30, the sieve plate 30 is lifted up. The guide column 34 on the sieve plate 30 slides in the plug hole of the shelf strip 29, and the vibration spring 35 is compressed by the guide column 34. After the first convex strip on the rotating shaft 32 passes through the second convex strip 33 on the sieve plate 30, the sieve plate 30 begins to fall under the rebound force of the vibration spring 35. With the continuous rotation of the third motor 31, the sieve plate 30 is continuously lifted up and falls, so as to realize the vibration of the sieve plate 30 on the first pouring box 27 and the second pouring box 28, and further promote the rolling of the coal gangue particles on the sieve plate 30.

[0065] The working principle of the present application is as follows:

[0066] Step one, the coal gangue conveyor belt is connected with the feeding pipe 5, the coal gangue is sent into the crusher shell 3 through the coal gangue conveyor belt. The lower pulley 20 is connected with the driving device through the driving belt, the driving device drives the lower pulley 20 to rotate through the driving belt, the lower pulley 20 drives the upper pulley 14 to rotate through the transmission belt. The upper pulley 14 drives the upper drive shaft 10 to rotate, the upper drive shaft 10 drives the eccentric protrusion 15 to rotate synchronously, the eccentric protrusion 15 drives the moving jaw plate 11 to reciprocate, the moving jaw plate 11 cooperates with the fixed jaw plate 12 to preliminarily crush the coal gangue entering the crusher shell 3.

[0067] Step two, the preliminarily crushed coal gangue enters the hammer crusher shell 2 after passing through the fixed jaw plate 12 and the moving jaw plate 11. The lower pulley 20 drives the knife holder cylinder 22 to rotate through the pin shaft 47, the knife holder cylinder 22 drives the hammer head 23 to rotate, and the wear cloth 40 between the hammer heads 23 is tightened at this time. The coal gangue entering the hammer crusher shell 2 collides with the rotating hammer heads 23, and the collided coal gangue is thrown onto the impact plate 19 to be broken again, and the broken coal gangue falls on the screen bar 18 of the screen frame 16. The coal gangue passing through the gap of the screen bar 18 falls on the screen plate 30 of the first discharge box.

[0068] Step three, after the hammer crusher works for a period of time, a part of the coal gangue particles will be stuck in the gap of the screen bar 18. At this time, the second motor 36 is started, the second motor 36 drives the second screw 37 to rotate, and since the comb-shaped push plate 39 is screwed with the second threaded section of the second screw 37, the comb-shaped push plate 39 slides along the second screw 37, and the comb teeth on the comb-shaped push plate 39 remove the coal gangue particles stuck between the screen bars 18.

[0069] Step four, when the crusher and the hammer crusher are working, a large amount of dust will be generated in the crusher shell 3 and the hammer crusher shell 2, and the dust will diffuse with the airflow. At this time, the baffle 6 in the feeding pipe 5 will freely sag to block the dust from diffusing outward. A large amount of noise will be generated when the crusher preliminarily crushes the coal gangue, and the soundproof board 7 in the crusher shell 3 will absorb the noise at this time, so as to prevent the environmental noise from being too large.

[0070] Step five, after the broken material passes through the sieve frame 16, the coal gangue particles of various particle sizes fall on the sieve plate 30 of the first discharge box 27 at the same time, the coal gangue particles of the smallest particle size fall on the bottom plate of the first discharge box 27 after passing through the sieve plate 30 of the first discharge box 27, and are output outward along the bottom plate of the first discharge box 27. The coal gangue particles of the remaining particle size fall on the sieve plate 30 of the second discharge box 28 along the sieve plate 30 of the first discharge box 27, the coal gangue particles of the medium particle size fall on the bottom plate of the second discharge box 28 after passing through the sieve plate 30 of the second discharge box 28, and are output outward along the bottom plate of the second discharge box 28. The coal gangue particles of the largest particle size remaining fall along the sieve plate 30 of the second discharge box 28 to the lower side of the crusher, so as to separate the coal gangue particles of the three particle sizes.

[0071] Step six, when the hammer head 23 outside the cutter cylinder 22 is damaged due to long-term work, the damaged hammer head 23 needs to be replaced. At this time, the crusher is controlled to stop working, the bolts between the sleeve plate 21 and the cutter plate 24 are removed, and the sleeve plate 21 and the cutter plate 24 are separated. Then the first motor 25 is started, and the first motor 25 drives the first screw rod 26 to rotate. Since the front guide sleeve 50 is screwed with the first threaded section of the first screw rod 26, the front guide sleeve 50 is driven to slide along the first screw rod 26. The front guide sleeve 50 drives the sleeve plate 21 to slide away from the lower side pulley 20 through the connecting rod 49, and the sleeve plate 21 drives the extension cylinder 48 to gradually move to the outside of the hammer crusher shell 2. Then the bolts between the cutter plate 24 and the hammer crusher shell 2 are removed, and then the cutter plate 24 is moved away from the hammer crusher shell 2. The cutter plate 24 drives the cutter cylinder 22 to move from the knife changing opening to the outside of the hammer crusher shell 2, at this time the bolt shaft 47 is detached from the inside pin hole of the cutter cylinder 22, so that the cutter cylinder 22 can rotate freely outside the extension cylinder 48, realizing the function of changing the knife outside the hammer crusher shell 2. When the damaged hammer head 23 is replaced, the cutter cylinder 22 is pushed into the hammer crusher shell 2 again, the bolt shaft 47 is inserted into the inside pin hole of the cutter cylinder 22, and then the cutter plate 24 is connected with the hammer crusher shell 2 through the bolts. Then the first motor 25 is started again, the first motor 25 drives the first screw rod 26 to rotate reversely, so that the extension cylinder 48 reenters the crusher shell 3, the sleeve plate 21 contacts the cutter plate 24 again, and then the cutter plate 24 is connected with the sleeve plate 21 through the bolts, so as to complete the knife changing work of the hammer head 23.

[0072] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the present application can be implemented in other particular forms without departing from the spirit or essential characteristics of the present application. The embodiments should therefore be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims with respect to the figures of the patent document.

Claims

1. An impact-resistant gangue crusher, characterized by: It includes a support frame, the upper end of the support frame is fixedly provided with a crusher shell and a hammer crusher shell distributed up and down, a crushing mechanism is provided inside the crusher shell, and a hammer crushing mechanism is provided inside the hammer crusher shell; the crushing mechanism includes an upper driving shaft, a fixed jaw plate, and a movable jaw plate, the upper driving shaft is rotatably provided inside the crusher shell, an eccentric protrusion is fixedly provided in the middle of the upper driving shaft, the fixed jaw plate is fixedly provided on the front inner wall of the crusher shell, and the upper end of the movable jaw plate is sleeved on the outer side of the eccentric protrusion in the middle of the upper driving shaft; the hammer crushing mechanism includes a lower driving shaft, an extension cylinder, and a tool holder cylinder, the lower driving shaft is rotatably provided inside the hammer crushing mechanism, the extension cylinder is slidably sleeved on the outer side of the lower driving shaft, the tool holder cylinder is slidably sleeved on the outer side of the extension cylinder, and a hammer head is provided on the tool holder cylinder; the lower driving shaft and the upper driving shaft are connected by a belt transmission mechanism; Multiple circles of hammers are arranged on the outside of the tool holder cylinder; multiple hammers in each circle are arranged in a circular array along the axis of the tool holder cylinder, and each hammer is rotatably arranged on the outer surface of the tool holder cylinder, and wear-resistant cloth is arranged between adjacent hammers; The movable jaw plate is arranged at the rear side of the fixed jaw plate, and a rebound assembly is arranged between the lower end of the movable jaw plate and the rear inner wall of the crusher housing; the rebound assembly includes an adjustment seat, a sliding seat, a sliding frame, a stabilizing plate, a rebound rod, a rebound spring, a hinge seat, a hinge rod, a locking bolt, and a mounting seat; The belt transmission mechanism includes an upper pulley, a lower pulley, and a transmission belt; The hammer crushing mechanism also includes a screen frame, an impact frame, a first motor, a first screw, a second motor, a second screw, and a comb-shaped push plate; The hammer crushing mechanism also includes a latch shaft, a sleeve plate, a connecting rod, and a guide sleeve. A circle of outer pin holes arranged in a circular array is provided on the lower pulley, and a circle of inner pin holes arranged in a circular array is provided on the end face of the tool holder cylinder on one side close to the lower pulley. The inner pin holes on the tool holder cylinder correspond one to one with the outer pin holes on the lower pulley; the same latch shaft is inserted into each corresponding inner pin hole and outer pin hole; a tool changing opening is provided on the side wall of the hammer crusher housing away from the lower pulley, and the end of the extension cylinder away from the lower pulley extends to the outside of the hammer crusher housing through the tool changing opening; a circular sleeve plate is fixedly provided at the end of the extension cylinder away from the lower pulley, and two front-to-back symmetrical connecting rods are fixedly provided at the lower end of the sleeve plate.

2. The impact-resistant coal gangue crusher according to claim 1, characterized in that: The support frame includes a support plate, and a plurality of vertical support legs are fixedly provided at the lower end of the support plate; a blanking opening is provided on the support plate; the hammer crusher housing is a square cylindrical structure with openings at both ends, and the lower end of the hammer crusher housing is fixedly provided on the upper end surface of the support plate, and the opening at the lower end of the hammer crusher housing corresponds to the blanking opening on the support plate; the crusher housing is a cylindrical structure with openings at both ends, and the lower end opening of the crusher housing is connected to the upper end opening of the hammer crusher housing.

3. The impact-resistant coal gangue crusher according to claim 2, characterized in that: A horizontal top plate is fixedly provided at the upper opening of the crusher shell, a feed port is provided on the top plate, a feed pipe is fixedly provided at the upper end of the feed port, and a baffle is rotatably provided at the inlet of the feed pipe; sound insulation panels are provided inside the side walls around the crusher shell; wear-resistant plates are provided on the inner walls around the crusher shell; a bearing seat is provided on the side walls on the left and right sides of the crusher shell, and the two ends of the upper drive shaft are respectively provided inside the two bearing seats.

4. The impact-resistant coal gangue crusher according to claim 1, characterized in that: An adjusting seat is fixedly provided on the rear inner wall of the crusher casing, and a sliding groove is provided at the front end of the adjusting seat, and a sliding seat is slidably provided inside the sliding groove, and the front end of the sliding seat extends to the outside of the sliding groove of the adjusting seat, and a stabilizing plate is rotatably provided at the front end of the sliding seat; a sliding frame is fixedly provided on the rear side of the lower end of the movable jaw plate, and a sliding groove that passes through the front and back is provided inside the sliding frame, and the front end of the stabilizing plate is slidably inserted into the sliding groove of the sliding frame; a limit plate is fixedly provided at the front end of the stabilizing plate, and the limit plate is located on the front side of the sliding frame; a mounting seat is fixedly provided on one side of the front end of the adjusting seat, and a hinged rod is rotatably provided at one end of the outer side of the mounting seat, and the end of the hinged rod away from the mounting seat is rotatably connected to the side surface of the sliding seat; A waist-shaped groove is provided in the middle of the hinged rod, and a locking bolt is screwed on the mounting seat. A hinged seat is fixedly provided on the end of the locking bolt, and an action rod is fixedly provided inside the hinged seat, and the action rod is inserted into the waist-shaped groove of the hinged rod; two front and rear fixed plates are fixed at the lower end of the adjustment seat, and a rebound rod is slidably inserted inside the two fixed plates, and the front end of the rebound rod is hinged to the lower end of the sliding frame; two action rings are fixed on the rebound rod, the front action ring is located at the rear end of the front fixed plate, and the rear action ring is located at the rear end of the rear fixed plate; a rebound spring is sleeved on the outside of the rebound rod, the front end of the rebound spring is connected to the front action ring, and the rear end of the rebound spring is connected to the front end surface of the rear fixed plate.

5. The impact-resistant coal gangue crusher according to claim 1, characterized in that: Both ends of the upper drive shaft extend to the outside of the crusher casing, and a flywheel is fixedly provided at one end of the upper drive shaft; an upper pulley is fixedly provided at the other end of the upper drive shaft; one end of the lower drive shaft extends to the outside of the hammer crusher casing; a lower pulley is fixedly provided at the extended end of the lower drive shaft, and the lower pulley is connected to the upper pulley by a transmission belt; the lower pulley is also connected to the driving device through a drive belt.

6. The impact-resistant coal gangue crusher according to claim 5, characterized in that: An impact frame is provided on the outer side of the upper end of the knife holder cylinder, and a screen frame is provided on the outer side of the lower end of the knife holder cylinder; the impact frame is an arc-shaped frame structure, and an impact plate is fixedly provided on the inner side surface of the impact frame; the screen frame is an arc-shaped frame structure, and a row of equidistantly arranged screen bars is fixedly provided on the inner side surface of the screen frame, and two front and rear rotating seats are fixedly provided on the support frame, and a first motor and a second motor distributed front and back are fixedly provided on the side wall of the hammer crusher casing, and a first screw and a second screw are rotatably provided on the front and rear sides of the inside of the hammer crusher casing respectively, one end of the first screw is fixedly connected to the output shaft of the first motor, and the other end of the first screw is connected to the front rotating shaft. The movable seat is rotatably connected; one end of the second screw is fixedly connected to the output shaft of the second motor, and the other end of the second screw is rotatably connected to the rotating seat on the rear side; the first screw and the end of the second screw close to the rotating seat both extend to the outside of the hammer crusher casing, and the first screw is provided with a first thread segment in the area outside the hammer crusher casing, and the second screw is provided with a second thread segment in the area inside the hammer crusher casing; an arc-shaped comb push plate is screwed on the second thread segment of the second screw, the comb push plate is located inside the screen frame, and the comb push plate is in sliding contact with the screen bars; a row of comb teeth is provided on the comb push plate, and a row of comb teeth is inserted into the gap of a row of screen bars.

7. The impact-resistant coal gangue crusher according to claim 6, characterized in that: A guide sleeve is fixedly provided at the lower end of each of the two connecting rods, wherein the guide sleeve on the front side is screwed to the outer side of the first threaded section of the first screw rod, and the guide sleeve on the rear side is slidably sleeved to the outer side of the second screw rod.

8. The impact-resistant coal gangue crusher according to claim 7, characterized in that: The hammer crushing mechanism also includes a tool holder plate, which has a circular tool holder plate slidably sleeved on the outside of the extension cylinder, and the tool holder plate is located between the hammer crusher housing and the sleeve plate; the sleeve plate is fixedly connected to the tool holder plate by a circle of bolts; the tool holder plate is fixedly connected to the hammer crusher housing by a circle of bolts; the end of the tool holder cylinder away from the lower side pulley is rotatably connected to the tool holder plate.

9. The impact-resistant coal gangue crusher according to claim 1, characterized in that: The lifting mechanism comprises a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a 10. The impact-resistant coal gangue crusher according to claim 9, characterized in that: The screening mechanism also includes a third motor, a rotating shaft, a vibration spring, and a guide column; a plug-in hole is provided on the frame bar, and a guide column is slidably inserted in each plug-in hole, and the upper end of the guide column is fixedly connected to the lower end surface of the screen plate; a vibration spring is sleeved on the outside of the guide column, and the vibration spring is located below the frame bar, the upper end of the vibration spring is fixedly connected to the lower end surface of the frame bar, and the lower end of the vibration spring is fixedly connected to the lower end of the guide column; a third motor is fixedly provided on the outer wall of the left side plate of the first and second pouring boxes, and a rotating shaft is fixedly provided on the output shaft of the third motor, and the rotating shaft is located on the inner side of the first and second pouring boxes, and a first convex strip is fixedly provided on the outer surface of the rotating shaft; a second convex strip is fixedly provided on the lower end surface of the screen plate, and the second convex strip is in contact with the rotating shaft.

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