A coal mine crusher

Abstract

The present application relates to the technical field of stone crushing, in particular to a coal mine crusher, which comprises a collecting frame, a screening unit is placed on the upper part of the collecting frame, the screening unit is used for screening the crushed ore, and the ore meeting the specifications falls and is collected, the present application can meet the two different crushing modes of rotary crushing and pressing crushing of the ore through the setting of the crushing unit, and the rotary crushing and pressing crushing are combined with each other, the ore can be crushed more thoroughly, the ore is also subjected to sinking crushing in the concave box, dust generated by the crushing of the ore can be effectively inhibited, the flying stone particles during crushing can be blocked, the setting of the placing unit can also drive the ore and the crushing unit to generate a reverse impact force, and the crushing efficiency and quality of the ore are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of stone crushing technology, specifically a crusher for coal mines. Background Technology

[0002] A crusher is a device that uses a certain mechanism to crush large pieces of material into smaller pieces by applying one or more forces.

[0003] There are many types of crushers, and they are widely used. One of them is crushing ore during coal mining.

[0004] The prior art discloses a Chinese patent with application number CN202410411717.9, a novel double-roller mining crusher, which discloses that after the ore to be crushed is poured into the outer shell, the ore can be fed into the gap between the two crushing rollers. Under the action of the reciprocating mechanism, the two concave mounting brackets can drive the gap between the two crushing rollers to widen, so as to accelerate the efficiency of feeding the ore into the area between the two crushing rollers.

[0005] Although the above-mentioned device can crush ore, it still has some drawbacks in use:

[0006] 1. The above-mentioned device uses a single roller crushing method, which causes smaller stones to fall between the two crushing rollers. It also causes the stones to splash during crushing and the stones to be missed during crushing, resulting in insufficient crushing. In addition, a lot of dust is generated during ore crushing, which will cause a lot of pollution to the working environment if it is not suppressed.

[0007] 2. When crushing gravel, it is impossible to clean the cutter head. After prolonged use, small gravel and dust from crushing can easily adhere to the outside of the cutter head, causing it to jam and affecting the crushing operation. Summary of the Invention

[0008] The purpose of this invention is to provide a coal mine crusher that solves the problem mentioned in the background art by combining roller crushing and pressing crushing methods to fully crush the ore while suppressing dust, and to quickly clean the cutter head to avoid the problem of cutter head jamming.

[0009] The objective of this invention can be achieved through the following technical solutions:

[0010] A coal mine crusher includes a collection frame with a screening unit placed on top. The screening unit is used to screen the crushed ore, allowing ore that meets the specified size to fall and be collected. Above the screening unit are two pressing frames arranged symmetrically in a U-shape. Placement units are detachably installed on the upper surfaces of the two pressing frames. The placement units are used to collect the ore during crushing for crushing. Above the placement units are crushing units for pressing and roller crushing of the ore.

[0011] The screening unit includes two symmetrically arranged external frames. Rectangular slots are provided on the two external frames, and a U-shaped frame located in the middle of the two external frames is slidably installed in the rectangular slots. The external frames are arranged in an inverted L-shape. A spring is installed between one side of the external frame and the U-shaped frame. The side of the two external frames away from the spring is provided with a shaft that is connected to the external frame by a motor. A cam that contacts the U-shaped frame is fixedly installed in the middle of the shaft. A tilting plate is rotatably installed in the middle of the U-shaped frame. A placement opening is provided on one side of the U-shaped frame, and a screen plate located above the tilting plate is placed in the placement slot.

[0012] The inner wall of the outer frame has grooves on both sides. One side of the groove has a slot for the tilting plate. A card plate is slidably installed in the groove. When the card plate is inside the slot, it is used to fix the tilting plate. A baffle is slidably installed on one side of the return frame. Multiple adjustment slots are opened on the return frame. An inner plate fixed to the card plate is slidably installed in the adjustment slot. A spring connects the inner plate and the return frame.

[0013] The placement unit includes a concave box with hollow slots on both sides of the inner cavity. Ear plates are fixedly installed on both sides of the outer cavity of the concave box. Threaded rods are mounted on the ear plates via a motor. An external slot is provided above the ear plates on the outer wall of the concave box. Internal slots communicating with the hollow slots are provided on both sides of the inner cavity of the concave box. A lifting frame that is slidably connected to the external slot is threadedly mounted on the threaded rod. A spring located in the hollow slot is fixedly installed on the lifting frame. An impact frame is slidably installed up and down in the internal slot. The end of the spring away from the lifting frame is fixedly connected to the impact frame. A placement slot is provided on the outer cavity of the concave box, through which a receiving plate that engages with two impact frames is placed.

[0014] Above the placement slot is a toothed plate that slides left and right to the outside of the concave box. A cleaning brush is fixedly installed in the middle of the lower end face of the toothed plate. Above the toothed plate is a mounting plate that is fixed to the concave box. A drive wheel is mounted on the lower end face of the mounting plate by a motor, and the drive wheel meshes with the toothed plate.

[0015] The crushing unit includes two symmetrically arranged fixed frames. Two symmetrically arranged cylinders are fixedly installed on the lower end face of the fixed frames. A guide plate is installed between the two cylinders. A telescopic plate is slidably installed on the lower end face of the guide plate via an electric slider. A rectangular plate is fixedly installed on the lower end face of the telescopic plate. Two symmetrically arranged fixed rods are installed between the two rectangular plates via a motor. A symmetrically arranged flipping plate is fixedly installed on the fixed rods on both sides. A crushing plate is installed on one side of the flipping plate via a spring.

[0016] The rectangular plate has symmetrically arranged side grooves on both sides, and a movable block is slidably installed in the side groove. A traction plate is rotatably installed on the movable block. An internal rod is fixedly installed on the side of the traction plate away from the movable block. A through groove is opened in the middle of the flip plate, and the internal rod is located in the through groove.

[0017] An electric push rod is fixedly installed in the middle of the rectangular plate, and a convex shaft is fixedly installed on the side of the two flip plates that are close to each other. A fixing sleeve for external clamping of the convex shaft is rotatably installed at the telescopic end of the electric push rod.

[0018] Multiple equally spaced gears are rotatably mounted on one side of a rectangular plate. The gear located at the center is connected to the rectangular plate by a motor. A rotating rod that rotates with the rectangular plate on the other side is fixedly mounted on one side of the gear. A rotating roller is fixedly mounted on the outside of the rotating rod, and multiple equally spaced crushing blades are fixedly mounted on the outside of the rotating roller.

[0019] Rotating rollers are mounted on both sides of the rotating roller via electric sliders. Multiple circumferentially arranged push plates are hinged to the outside of the rotating rollers. One end of the push plate is hinged to a connecting shaft. A cleaning arc plate is installed between the two connecting shafts on the left and right sides. One side of the cleaning arc plate is slidably connected to the rotating roller. The cleaning arc plate has multiple through holes that are sleeved on the outside of the crushing blade. A baffle is installed between every two adjacent cleaning arc plates.

[0020] The beneficial effects of this invention are:

[0021] 1. This invention, through the arrangement of the crushing unit, can satisfy two different crushing methods for ore: rotary crushing and pressing crushing. Furthermore, by combining these two crushing methods, the ore can be crushed more thoroughly. The placement unit ensures that during crushing, the ore is crushed in a downward-sinking manner within the concave box, effectively suppressing dust generated during crushing and blocking flying stone particles. The placement unit also ensures that the entire structure remains intact during the crushing process. The crushing unit generates a reverse impact force between the ore and the crushing unit, ensuring that the ore is not subjected to the crushing force of the crushing unit alone during crushing. This effectively promotes the crushing efficiency and quality of the ore. The screening unit is designed to spread the crushed ore back and forth, allowing the ore that meets the requirements to fall quickly. At the same time, the screen plate is equipped with magnetic adsorption, which can adsorb metal impurities in the ore. When the screen plate is removed, the ore that does not meet the standards can be poured out for secondary crushing, and the metal particles adsorbed on the screen plate can be scraped off for rapid separation.

[0022] 2. This invention uses a card plate located in a slot to fill the gap between the tilting plate and the U-shaped frame, allowing the ore collected on the tilting plate to be flipped and dropped. It also prevents ore from falling outside the collection frame through the gap when the U-shaped frame moves. When the ore is uniformly dropped into the collection frame, the shaft rotation is canceled, aligning the U-shaped frame with the collection frame. Then, the internal plate is moved to release the card plate from the tilting plate, and the tilting plate is then flipped, allowing the crushed ore of the appropriate particle size to be dropped into the collection frame.

[0023] 3. This invention features a concave design in the center of the concave box, allowing the ore to be crushed in a sinking environment. This effectively prevents splashing and dust dispersion during ore crushing. A motor drives a threaded rod to rotate, which in turn raises and lowers the impact frame, adjusting the position of the receiving plate within the concave box. Simultaneously, the raising and lowering of the lifting frame compresses the spring, thus regulating the elasticity applied by the spring to the impact frame and the receiving plate. By adjusting the spring elasticity, the receiving plate can impact the crushing unit in the opposite direction as the crushing unit moves upward, causing the ore on the receiving plate to re-enter contact with the crushing unit, thereby achieving multiple crushing processes.

[0024] 4. In this invention, when the cylinder pushes forward, it causes the rectangular plate to move downward and contact the ore. When the ore is being crushed, the tilting plate is located below the rotating roller. At this time, the crushing plate on the tilting plate crushes the ore, and the electric slider opens, causing the telescopic plate to slide left and right on the guide plate. The rectangular plate can drive the crushing plate to move and crush the ore during downward pressing within the concave box, thereby increasing the crushing range of the ore. When the ore is subjected to roller crushing, the electric push rod opens and pushes forward, causing the fixed sleeve to release the fixation of the two convex shafts. Then, the motor starts and drives the fixed rod to rotate. It should be noted that the two fixed rods rotate in opposite directions until the tilting plate rotates above the rotating roller. Above the rotating roller, the roller drives the crusher blade to rotate and perform rolling crushing of the ore. This effectively covers and blocks the dust generated during crushing, thus effectively suppressing dust. When the motor is turned on, it drives the central gear to rotate. Due to the meshing between the gears, multiple gears rotate synchronously. The rotation of the gears synchronously drives the rotating roller and the crusher blade to rotate, thereby achieving the crushing of the ore. Furthermore, since the directions of each pair of adjacent gears are set in opposite directions, when the rotating roller drives the crusher blade to perform rolling crushing of the ore, the ore that undergoes sliding displacement after crushing can always be placed between any two rotating rollers, effectively avoiding the situation where insufficient crushing occurs due to a single rotation direction.

[0025] 5. This invention uses an electric slider to drive the rotating ring. When the ring rotates, the pusher plate causes multiple cleaning arc plates to move closer or further apart, thereby quickly cleaning the crushing blade and preventing ore and dust from adhering to the outside of the crushing blade, which would affect the crushing of the ore. By moving the cleaning arc plates on the crushing blade, the crushing depth of the crushing blade can also be adjusted. The baffle plate can block the crushed stone and prevent ore from splashing into the cleaning arc plate during crushing, causing jamming and thus affecting the movement of the cleaning arc plate to clean the crushing blade. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a partial cross-sectional view of the area between the collection frame and the screening unit of the present invention;

[0029] Figure 3This is a partial cross-sectional view of the screening unit of the present invention;

[0030] Figure 4 This is a schematic diagram of the placement unit structure of the present invention;

[0031] Figure 5 This is a schematic diagram of the orthographic structure of the placement unit of the present invention;

[0032] Figure 6 This is a schematic diagram of the crushing unit structure of the present invention;

[0033] Figure 7 This is a partial structural diagram of the crushing unit of the present invention when it crushes the ore.

[0034] Figure 8 This is a partial structural diagram of the crushing unit of the present invention performing roller crushing on ore;

[0035] Figure 9 This is a schematic diagram of the external structure of the rotating roller of the present invention;

[0036] Figure 10 This is a side cross-sectional view of the structure between the cleaning arc plate and the rotating roller of the present invention;

[0037] Figure 11 This is a schematic diagram of the shield structure of the present invention.

[0038] The attached figures are labeled as follows:

[0039] 1. Collection frame; 2. Screening unit; 21. External frame; 211. Shaft; 212. Cam; 22. U-shaped frame; 221. Groove; 222. Card plate; 223. Adjustment groove; 224. Internal plate; 23. Baffle; 24. Screen plate; 25. Tilting plate; 3. Placement unit; 31. Concave box; 32. Hollow groove; 33. Ear plate; 34. Threaded rod; 35. External groove; 36. Lifting frame; 37. Internal groove; 38. Impact frame; 39. Placement groove; 390. Receiving plate; 391. Toothed plate; 392. Cleaning brush; 393. Mounting plate; 394. 4. Drive wheel; 40. Crushing unit; 41. Fixed frame; 42. Cylinder; 43. Guide plate; 44. Telescopic plate; 45. Rectangular plate; 46. Fixed rod; 47. Side groove; 48. Moving block; 49. Traction plate; 40. Built-in rod; 40. Tilting plate; 41. Crushing plate; 42. Through groove; 43. Convex shaft; 44. Electric push rod; 45. Fixed sleeve; 46. Gear; 47. Rotating rod; 48. Rotating roller; 49. Crushing blade; 40. Rotating ring; 41. Pushing plate; 49. Connecting shaft; 49. Cleaning arc plate; 49. Cover plate. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] As attached Figure 1-11 As shown, a coal mine crusher includes a collection frame 1, a screening unit 2 placed on the upper part of the collection frame 1, the screening unit 2 is used to screen the crushed ore so that the ore that meets the specifications falls and is collected, and two pressing frames with a U-shaped structure and symmetrical arrangement are pressed on the upper surface of the two pressing frames. The upper end face of the two pressing frames is detachably installed with a placement unit 3, which is used to concentrate the ore for crushing during the crushing process. Above the placement unit 3 is a crushing unit 4 for pressing and rolling crushing of the ore.

[0042] The crushing unit 4 can accommodate both rotary and pressure crushing of the ore. The combination of these two methods allows for more thorough crushing. The placement unit 3 ensures that the ore is crushed in a downward-sinking manner within the concave box 31, effectively suppressing dust generated during crushing and blocking flying stone particles. Furthermore, the placement unit 3 also allows the crushing unit 4 to move the ore along its entire length during crushing. The stone and the crushing unit 4 generate a reverse impact force, which enables the ore to be crushed not only by the crushing force of the crushing unit 4, thus effectively promoting the crushing efficiency and quality of the ore. The setting of the screening unit 2 can reciprocate to spread the crushed ore, so that the ore that meets the requirements can fall quickly. At the same time, the screen plate 24 is equipped with magnetic attraction, which can adsorb metal impurities in the ore. When the screen plate 24 is removed, the ore that does not meet the standard can be poured out for secondary crushing, and the metal particles adsorbed on the screen plate 24 can be scraped off to achieve rapid separation.

[0043] As attached Figure 2 , 3As shown, the screening unit 2 includes two symmetrically arranged external frames 21. Rectangular slots are provided on the two external frames 21. A U-shaped frame 22 located in the middle of the two external frames 21 is slidably installed in the rectangular slots. The external frames 21 are arranged in an inverted L-shape. A spring is installed between one side of the external frame 21 and the U-shaped frame 22. A shaft 211 is provided on the side of the two external frames 21 away from the spring and is connected to the external frame 21 by a motor. A cam 212 that contacts the U-shaped frame 22 is fixedly installed in the middle of the shaft 211. A tilting plate 25 is rotatably installed in the middle of the U-shaped frame 22. A placement opening is provided on one side of the U-shaped frame 22. A screen plate 24 located above the tilting plate 25 is provided in the placement slot 39.

[0044] The crushed ore falls onto the screen plate 24. Then, the motor is turned on, driving the shaft 211 to rotate. As the shaft 211 rotates, it simultaneously drives the cam 212 to rotate. When the cam 212 rotates, it compresses the return frame 22. At this time, the return frame 22, under compression, moves away from the cam 212, compressing the spring on the outer frame 21. When the cam 212 releases its contact with the return frame 22, the return frame 22 releases its compression of the spring. Under the force of the spring, it pushes the return frame 22 towards the side of the cam 212. Thus, through the cooperation of the cam 212 and the spring, the return frame 22... The outer frame 21 slides back and forth, while the crushed ore in the loop frame 22 is spread on the screen plate 24. The ore that meets the specifications falls onto the tilting plate 25 through the screen plate 24. At the same time, as the ore is repeatedly spread on the screen plate 24, the metal particles of the ore during crushing are magnetically attracted to the screen plate 24. Then the screen plate 24 is moved and removed. The large particles of ore that have not fallen off are tilted for secondary crushing, while the magnetically attracted metal particles on the screen plate 24 are scraped off by the outside, thus effectively collecting the metal particles during ore crushing and also enabling the centralized collection of ore that meets the standards.

[0045] The inner wall of the outer frame 21 has grooves 221 on both sides. A slot is provided on one side of the groove 221 for the tilting plate 25. A card plate 222 is slidably installed in the groove 221. When the card plate 222 is inside the slot, it is used to fix the tilting plate 25. A baffle 23 is slidably installed on one side of the return frame 22. Multiple adjustment slots 223 are provided on the return frame 22. An inner plate 224 fixed to the card plate 222 is slidably installed in the adjustment slot 223. A spring is connected between the inner plate 224 and the return frame 22.

[0046] The clamping plate 222, located within the slot, fills the gap between the tilting plate 25 and the U-shaped frame 22, allowing the ore collected on the tilting plate 25 to be flipped and dropped. Simultaneously, it prevents ore from falling outside the collection frame 1 through the gap between the tilting plate 25 and the U-shaped frame 22 when the U-shaped frame 22 moves. When the ore falls uniformly into the collection frame 1, the rotation of the shaft 211 is canceled, aligning the U-shaped frame 22 with the collection frame 1. Then, the internal plate 224 is moved to release the clamping plate 222 from the tilting plate 25, and the tilting plate 25 is then flipped, allowing the crushed ore of the appropriate particle size to be dropped into the collection frame 1.

[0047] As attached Figure 4 , 5 As shown, the placement unit 3 includes a concave box 31. Hollow grooves 32 are provided on both sides of the inner cavity of the concave box 31. Ear plates 33 are fixedly installed on both sides of the outer cavity of the concave box 31. Threaded rods 34 are rotatably installed on the ear plates 33 via a motor. An outer groove 35 is provided above the ear plates 33 on the outer wall of the concave box 31. Inner grooves 37 communicating with the hollow grooves 32 are provided on both sides of the inner cavity of the concave box 31. A lifting frame 36 that is slidably connected to the outer groove 35 is rotatably installed on the threaded rod 34. A spring located in the hollow groove 32 is fixedly installed on the lifting frame 36. An impact frame 38 is slidably installed up and down in the inner groove 37. The end of the spring away from the lifting frame 36 is fixedly connected to the impact frame 38. A placement groove 39 is provided on the outer cavity of the concave box 31. A receiving plate 390 that engages with the two impact frames 38 is placed in the placement groove 39.

[0048] The concave box 31 has a concave shape in the middle, which allows the ore to be crushed in a sinking environment, effectively avoiding splashing and dust during ore crushing. The motor drives the threaded rod 34 to rotate, and the rotation of the threaded rod 34 causes the lifting frame 36 to rise, which in turn causes the impact frame 38 to rise and fall. This allows for adjustment of the position of the receiving plate 390 within the concave box 31. At the same time, the rising and falling of the lifting frame 36 compresses the spring, thereby adjusting the elasticity of the spring on the impact frame 38 and the receiving plate 390. By adjusting the spring elasticity, when the receiving plate 390 moves upward in the crushing unit 4, it can impact the crushing unit 4 in the opposite direction, causing the ore on the receiving plate 390 to come into contact with the crushing unit 4 again, thus achieving multiple crushing processes.

[0049] Above the placement slot 39 is a toothed plate 391 that is slidably connected to the outside of the concave box 31. A cleaning brush 392 is fixedly installed in the middle of the lower end face of the toothed plate 391. Above the toothed plate 391 is a mounting plate 393 that is fixed to the concave box 31. A drive wheel 394 is mounted on the lower end face of the mounting plate 393 by a motor. The drive wheel 394 meshes with the toothed plate 391.

[0050] When the broken ore falls from the receiving plate 390, the receiving plate 390 is manually pulled out of the placement groove 39. At this time, a gap is created between the receiving plate 390 and the concave box 31, and the ore particles on the receiving plate 390 fall off. This continues until the receiving plate 390 is completely removed from the placement groove 39, and the sand and gravel in the receiving plate 390 have all fallen off. As the receiving plate 390 moves, the part that moves out of the placement groove 39 slides on the X-axis and continuously contacts the cleaning brush 392. At this time, the motor is turned on and drives the drive wheel 394 to rotate. When the drive wheel 394 rotates, it drives the toothed plate 391 to move through meshing. When the toothed plate 391 moves, it drives the cleaning brush 392 to move on the Y-axis, thereby cleaning the surface of the receiving plate 390 and completing the cleaning of the receiving plate 390.

[0051] As attached Figure 6 , 7 As shown in Figure 8, the crushing unit 4 includes two symmetrically arranged fixed frames 40. Two symmetrically arranged cylinders 41 are fixedly installed on the lower end face of the fixed frames 40. A guide plate 42 is installed between the two cylinders 41. A telescopic plate 43 is slidably installed on the lower end face of the guide plate 42 via an electric slider. A rectangular plate 44 is fixedly installed on the lower end face of the telescopic plate 43. Two symmetrically arranged fixed rods 441 are installed between the two rectangular plates 44 via a motor. A symmetrically arranged flipping plate 45 is fixedly installed on the fixed rods 441 on both sides. A crushing plate 451 is installed on one side of the flipping plate 45 via a spring.

[0052] When crushing the ore in the concave box 31, the cylinder 41 is activated and pushed forward. This push causes the rectangular plate 44 to move downwards and contact the ore. When the ore is being crushed by pressure, the tilting plate 45 is positioned below the rotating roller 48. At this time, the crushing plate 451 on the tilting plate 45 crushes the ore by pressure, and the electric slider activates, causing the telescopic plate 43 to slide left and right on the guide plate 42. The rectangular plate 44 can move the crushing plate 451 within the concave box 31 during downward crushing, thereby increasing the crushing range of the ore. When the ore is subjected to roller crushing, the electric push rod 454 is activated and pushed forward, causing the fixing sleeve 455 to release the fixation of the two convex shafts 453. Subsequently, the motor activates, causing the fixing rod 441 to rotate. It should be noted that the two fixing rods 441 rotate in opposite directions until the tilting plate 45 rotates to the desired position. Above the rotating roller 48, two tilting plates 45 are positioned above the rotating roller 48. When the rotating roller 48 drives the crushing blade 481 to rotate and perform rolling crushing of the ore, it can effectively cover and block the dust generated during crushing, thereby effectively suppressing dust. When the motor is turned on, it drives the central gear 46 to rotate. Since the gears 46 mesh with each other, multiple gears 46 rotate synchronously. When the gears 46 rotate, they synchronously drive the rotating roller 48 and the crushing blade 481 to rotate, thereby achieving the crushing of the ore. Furthermore, since the directions of each pair of adjacent gears 46 are set in opposite directions, when the rotating roller 48 drives the crushing blade 481 to perform rolling crushing of the ore, the ore that has undergone sliding displacement after crushing can always be between any two rotating rollers 48, which can effectively avoid the situation of insufficient crushing caused by a single rotation direction.

[0053] The rectangular plate 44 has symmetrically arranged side grooves 442 on both sides. A movable block 443 is slidably installed in the side groove 442. A traction plate 444 is rotatably installed on the movable block 443. An internal rod 445 is fixedly installed on the side of the traction plate 444 away from the movable block 443. A through groove 452 is opened in the middle of the flip plate 45, and the internal rod 445 is located in the through groove 452.

[0054] An electric push rod 454 is fixedly installed in the middle of the rectangular plate 44. A convex shaft 453 is fixedly installed on one side of the two flip plates 45 that are close to each other. A fixing sleeve 455 for externally clamping the convex shaft 453 is rotatably installed on the telescopic end of the electric push rod 454.

[0055] As attached Figure 9 , 10As shown in Figure 11, a plurality of gears 46 are rotatably mounted on one side of the rectangular plate 44. The gear 46 located at the center is connected to the rectangular plate 44 by a motor. A rotating rod 47 that rotates with the rectangular plate 44 on the other side is fixedly mounted on one side of the gear 46. A rotating roller 48 is fixedly mounted on the outside of the rotating rod 47. A plurality of crushing blades 481 arranged at equal intervals are fixedly mounted on the outside of the rotating roller 48.

[0056] Rotating roller 48 has rotating rings 49 mounted on both sides via electric sliders. Multiple circumferentially arranged push plates 491 are hinged to the outside of rotating rings 49. One end of push plate 491 is hinged to a connecting shaft 492. A cleaning arc plate 493 is installed between the left and right connecting shafts 492. One side of the cleaning arc plate 493 is slidably connected to the rotating roller 48. The cleaning arc plate 493 has multiple through holes sleeved on the outside of the crusher blade 481. A baffle plate 494 is installed between every two adjacent cleaning arc plates 493.

[0057] The electric slider opens and drives the rotating ring 49 to rotate. When the rotating ring 49 rotates, the push plate 491 causes multiple cleaning arc plates 493 to move closer or further apart, thereby quickly cleaning the crushing blade 481 and preventing ore and dust from adhering to the outside of the crushing blade 481, which would affect the crushing of the ore. By moving the cleaning arc plates 493 on the crushing blade 481, the crushing depth of the crushing blade 481 can also be adjusted. The shield 494 can block the crushed stone and prevent the ore from splashing into the cleaning arc plate 493 during crushing and causing jamming, which would prevent the cleaning arc plate 493 from moving and cleaning the crushing blade 481.

[0058] In use, the ore to be crushed is pre-poured into the concave box 31. When crushing the ore in the concave box 31, the cylinder 41 is activated and pushed forward. When the cylinder 41 pushes forward, it causes the rectangular plate 44 to move down and contact the ore. When the ore is crushed by pressing, the tilting plate 45 is located below the rotating roller 48. At this time, the crushing plate 451 on the tilting plate 45 crushes the ore by pressing, and the electric slider is activated to drive the telescopic plate 43 to slide left and right on the guide plate 42. The rectangular plate 44 can drive the crushing plate 451 to move and crush when pressing down in the concave box 31, thereby increasing the crushing range of the ore. When the ore is crushed by roller pressing, the electric push rod 454 is activated and pushed forward, so that the fixing sleeve 455 releases the fixing of the two convex shafts 453. Then the motor is activated to drive the fixing rod 441 to rotate. It should be noted that the two fixing rods 441 rotate in opposite directions here. Until the flip plate 45 rotates above the rotating roller 48, the two flip plates 45 are positioned above the rotating roller 48, enabling the rotating roller 48 to drive the crushing blade 481 to rotate and perform rolling crushing of the ore. This effectively covers and blocks the dust generated during crushing, thus effectively suppressing dust. When the motor is turned on, it drives the central gear 46 to rotate. Since the gears 46 mesh with each other, multiple gears 46 rotate synchronously. When the gears 46 rotate, they synchronously drive the rotating roller 48 and the crushing blade 481 to rotate, thereby achieving the crushing of the ore. Furthermore, since the directions of each pair of adjacent gears 46 are set in opposite directions, when the rotating roller 48 drives the crushing blade 481 to perform rolling crushing of the ore, the ore that has undergone sliding displacement after crushing can always be between any two rotating rollers 48, effectively avoiding the situation where insufficient crushing occurs due to a single rotation direction.

[0059] The concave box 31 has a concave shape in the middle, which allows the ore to be crushed in a sinking environment, effectively avoiding splashing and dust during crushing. The motor drives the threaded rod 34 to rotate, which in turn raises the lifting frame 36 and the impact frame 38, adjusting the position of the receiving plate 390 within the concave box 31. Simultaneously, the lifting frame 36 compresses the spring, thus regulating the elasticity of the spring on the impact frame 38 and the receiving plate 390. By adjusting the spring elasticity, the receiving plate 390 can impact the crushing unit 4 in the opposite direction when the crushing unit 4 moves upward, thereby affecting the receiving plate 390. The ore on the 90 comes into contact with the crushing unit 4 again, thereby achieving multiple crushing. The electric slider is opened to drive the rotating ring 49 to rotate. When the rotating ring 49 rotates, it drives the multiple cleaning arc plates 493 to move closer or further apart through the push plate 491, thereby quickly cleaning the crushing blade 481 and preventing ore and dust adhering to the outside of the crushing blade 481 from affecting the crushing of the ore. By moving the cleaning arc plates 493 on the crushing blade 481, the crushing depth of the crushing blade 481 when crushing the ore can also be adjusted. The shield plate 494 can block the crushed stone and prevent the ore from splashing into the cleaning arc plate 493 during crushing and causing jamming, which would prevent the cleaning arc plate 493 from moving and cleaning the crushing blade 481.

[0060] When the crushed ore falls to complete the screening, the receiving plate 390 is manually pulled out of the placement trough 39. This creates a gap between the receiving plate 390 and the concave box 31, causing ore particles on the receiving plate 390 to fall off. This continues until the receiving plate 390 is completely removed from the placement trough 39, and all the sand and gravel inside has fallen off. As the receiving plate 390 moves, the portion that has moved out of the placement trough 39 slides along the X-axis, continuously contacting the cleaning brush 392. At this point, the motor is activated. The drive wheel 394 rotates, which in turn drives the toothed plate 391 to move through meshing. The toothed plate 391 then moves the cleaning brush 392 along the Y-axis, cleaning the surface of the receiving plate 390. The crushed ore falls onto the screen plate 24. The motor is then turned on, driving the shaft 211 to rotate. Simultaneously, the shaft 211 rotates, driving the cam 212 to rotate. When the cam 212 rotates, it presses against the return frame 22. At this time, the return frame 22 is subjected to… After being compressed, the material moves away from the cam 212, compressing the spring on the outer frame 21. When the cam 212 stops resisting the return frame 22, the return frame 22 stops compressing the spring. Under the force of the spring, the return frame 22 moves towards the side of the cam 212. Thus, with the cooperation of the cam 212 and the spring, the return frame 22 slides back and forth on the outer frame 21. At this time, the crushed ore in the return frame 22 is spread on the screen plate 24. Meets the required specifications of ore fall through the screen plate 24 onto the tilting plate 25. As the ore is repeatedly spread out on the screen plate 24, the metal particles from the crushing process are magnetically attracted to the screen plate 24. The screen plate 24 is then moved and removed. Larger ore particles that do not fall off are tilted for secondary crushing, while the magnetically attracted metal particles on the screen plate 24 are scraped off by the outside, thus effectively collecting the metal particles from the crushing process and enabling the centralized collection of ore that meets the standards.

[0061] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A coal mine breaker comprising a collecting frame (1), characterized in that, The collection frame (1) is equipped with a screening unit (2) on the upper part. The screening unit (2) is used to screen the crushed ore so that the ore that meets the specifications can fall and be collected. There are two pressing frames with a U-shaped structure and symmetrical arrangement on the upper part of the screening unit (2). The upper end face of the two pressing frames is detachably equipped with a placement unit (3). The placement unit (3) is used to place the ore in a concentrated manner for crushing when it is being crushed. Above the placement unit (3) is a crushing unit (4) for pressing and crushing the ore and roller crushing. The crushing unit (4) includes two symmetrically arranged fixed frames (40). Two symmetrically arranged cylinders (41) are fixedly installed on the lower end face of the fixed frame (40). A guide plate (42) is installed between the two cylinders (41). A telescopic plate (43) is slidably installed on the lower end face of the guide plate (42) through an electric slider. A rectangular plate (44) is fixedly installed on the lower end face of the telescopic plate (43). Two symmetrically arranged fixed rods (441) are installed between the two rectangular plates (44) through a motor rotation. A symmetrically arranged flipping plate (45) is fixedly installed on the fixed rods (441) on both sides. A crushing plate (451) is installed on one side of the flipping plate (45) through a spring. The rectangular plate (44) has symmetrically arranged side grooves (442) on both sides. A moving block (443) is slidably installed in the side groove (442). A traction plate (444) is rotatably installed on the moving block (443). An internal rod (445) is fixedly installed on the side of the traction plate (444) away from the moving block (443). A through groove (452) is opened in the middle of the flip plate (45), and the internal rod (445) is located in the through groove (452). An electric push rod (454) is fixedly installed in the middle of the rectangular plate (44), and a convex shaft (453) is fixedly installed on the side of the two flip plates (45) that are close to each other. A fixing sleeve (455) for externally clamping the convex shaft (453) is rotatably installed on the telescopic end of the electric push rod (454). A plurality of gears (46) are rotatably mounted on one side of the rectangular plate (44). The gear (46) located at the center is connected to the rectangular plate (44) by a motor. A rotating rod (47) that rotates with the rectangular plate (44) on the other side is fixedly mounted on one side of the gear (46). A rotating roller (48) is fixedly mounted on the outside of the rotating rod (47). A plurality of crushing blades (481) are fixedly mounted on the outside of the rotating roller (48). Rotating roller (48) has rotating rings (49) mounted on both sides via electric sliders. Multiple circumferentially arranged push plates (491) are hinged to the outside of the rotating rings (49). One end of the push plate (491) is hinged to a connecting shaft (492). A cleaning arc plate (493) is installed between the two connecting shafts (492). One side of the cleaning arc plate (493) is slidably connected to the rotating roller (48). The cleaning arc plate (493) has multiple through holes sleeved on the outside of the crusher (481). A cover plate (494) is installed between every two adjacent cleaning arc plates (493).

2. A coal mine crusher according to claim 1, characterized in that, The screening unit (2) includes two symmetrically arranged external frames (21). Rectangular slots are provided on the two external frames (21). A U-shaped frame (22) located in the middle of the two external frames (21) is slidably installed in the rectangular slots. The external frames (21) are arranged in an inverted L-shape. A spring is installed between one side of the external frame (21) and the U-shaped frame (22). A shaft (211) is provided on the side of the two external frames (21) away from the spring and is connected to the external frame (21) by a motor. A cam (212) is fixedly installed in the middle of the shaft (211) and contacts the U-shaped frame (22). A tilting plate (25) is rotatably installed in the middle of the U-shaped frame (22). A placement opening is provided on one side of the U-shaped frame (22). A screen plate (24) located above the tilting plate (25) is provided in the placement slot (39).

3. A coal mine crusher according to claim 2, characterized in that, The outer frame (21) has grooves (221) on both sides of its inner wall. A slot is provided on one side of the groove (221) for the tilting plate (25). A card plate (222) is slidably installed in the groove (221). When the card plate (222) is inside the slot, it is used to fix the tilting plate (25). A baffle (23) is slidably installed on one side of the return frame (22). Multiple adjustment slots (223) are provided on the return frame (22). An inner plate (224) fixed to the card plate (222) is slidably installed in the adjustment slot (223). A spring is connected between the inner plate (224) and the return frame (22).

4. A coal mine crusher according to claim 1, characterized in that, The placement unit (3) includes a concave box (31), with hollow grooves (32) on both sides of the inner cavity of the concave box (31). Ear plates (33) are fixedly installed on both sides of the outer cavity of the concave box (31). Threaded rods (34) are mounted on the ear plates (33) by a motor. An external groove (35) is provided above the ear plates (33) on the outer wall of the concave box (31). Internal grooves (37) communicating with the hollow grooves (32) are provided on both sides of the inner cavity of the concave box (31). Threaded rods (34) A lifting frame (36) is rotatably mounted on the upper thread and slidably connected to the outer groove (35). A spring is fixedly mounted on the lifting frame (36) and located in the hollow groove (32). An impact frame (38) is slidably mounted in the inner groove (37). The end of the spring away from the lifting frame (36) is fixedly connected to the impact frame (38). A placement groove (39) is opened on the outside of the concave box (31). A receiving plate (390) that is engaged with the two impact frames (38) is placed in the placement groove (39).

5. A coal mine crusher according to claim 4, characterized in that, Above the placement slot (39) is a toothed plate (391) that is slidably connected to the outside of the concave box (31). A cleaning brush (392) is fixedly installed in the middle of the lower end face of the toothed plate (391). Above the toothed plate (391) is a mounting plate (393) that is fixed to the concave box (31). A drive wheel (394) is mounted on the lower end face of the mounting plate (393) by a motor. The drive wheel (394) meshes with the toothed plate (391).

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