Mining heavy hammer crusher

Abstract

The invention belongs to the technical field of ore crushing, and particularly relates to a mining heavy hammer crusher. A mining heavy hammer crusher comprises a machine shell, a toothed plate, a heavy hammer crushing assembly, crushing teeth I and a progressive crushing assembly, a feeding port is formed in the upper portion of the left side of the machine shell, the toothed plate is installed on the lower wall of the feeding port, the heavy hammer crushing assembly is installed in the middle of the interior of the machine shell, and the crushing teeth I are fixedly connected to the inner wall, on the right side of the heavy hammer crushing assembly, of the machine shell; and a progressive crushing assembly is mounted on the inner wall of the machine shell above the crushing teeth I. The distance between a mounting plate I and a heavy hammer crushing assembly is gradually increased from bottom to top, and crushing teeth II can move towards the shell, so that when a material is too large, a swinging hammer head firstly crushes the bottom of the material, and when the material is conveyed to the lower right side, the material is slowly thinned and cannot be clamped in the equipment.

Description

Technical Field

[0001] The invention belongs to the technical field of ore crushing, and in particular relates to a heavy hammer crusher for mining. Background Art

[0002] The heavy hammer crusher is a mechanical device that uses a high-speed rotating rotor with hammers to crush materials. It is a common device in the crushing industry and is suitable for processing materials of medium hardness, such as limestone, quartz stone, coal, gypsum, bricks, etc. It is especially suitable for coarse and medium crushing of ores.

[0003] The patent with the patent publication number CN115703084A discloses a heavy hammer crusher, including an upper shell, an impact liner, an impact grate A, a grate frame, a lower shell, a grate, a hammer, a hammer shaft, a rotor, an impact grate B, a screening roller, and a material receiving chute. The upper shell and the lower shell are installed by bolts, the lower shell is fixed to the ground by anchor bolts, a plurality of impact liners are fixed by bolts on the inner upper surface of the upper shell, an impact grate A is fixed by bolts on the left vertical surface of the upper shell, the grate frame is a semicircular structure fixed in the lower shell, a plurality of grates are fixed on the inner side of the grate frame by a slider, a plurality of hammers are installed on the outer side of the circumference of the rotor by a hammer shaft, and the rotor is installed concentrically with the grate frame. The present invention greatly improves the crushing efficiency of the equipment, reduces the useless work of crushing part of the rotor, improves the poor crushing and discharging situation, can greatly increase the life of the hammer, and greatly increase the output of the equipment. Although the application can achieve material crushing, the distance between the grate and the hammer head is the same, so both large and small materials are crushed in the same space. This method can easily cause the equipment to get stuck and cause damage to the equipment.

[0004] Therefore, it is urgent to develop a progressive mining hammer crusher. Summary of the invention

[0005] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a progressive mining hammer crusher.

[0006] The technical scheme of the present invention is: a mining heavy hammer crusher, comprising a casing, a tooth plate, a heavy hammer crushing assembly, crushing teeth I and a progressive crushing assembly, a feed port is opened on the upper left side of the casing, a tooth plate is installed on the lower wall of the feed port, a heavy hammer crushing assembly is installed in the middle of the casing, a crushing tooth I is fixedly connected to the casing inner wall on the right side of the heavy hammer crushing assembly, a progressive crushing assembly is installed on the casing inner wall above the crushing teeth I, the progressive crushing assembly comprises a mounting plate I, a guide rod I, crushing teeth II and a spring I, a row of mounting plates I are installed on the casing inner wall above the crushing teeth I, the distance between the mounting plate I and the heavy hammer crushing assembly increases from bottom to top, the mounting plate I is symmetrically slidably connected with the guide rod I front and back, a crushing tooth II is connected between the bottom ends of the guide rod I on each mounting plate I, and a spring I is connected between the crushing tooth II and the mounting plate I.

[0007] Optionally, the heavy hammer crushing assembly includes a crushing motor, a turntable, a connecting shaft, a hammer head and a counterweight. The turntable is rotatably installed in the middle of the casing, and the crushing motor is fixedly connected to the middle of the casing. The output shaft of the crushing motor is connected to the center of the turntable. Four connecting shafts parallel to the output shaft of the crushing motor are installed on the turntable. At least two hammer heads are rotatably installed on the connecting shafts, and a counterweight is fixedly connected to the end of the hammer head close to the axis of the turntable.

[0008] Optionally, an arc groove is formed at one end of the hammer head away from the axis of the rotating disk.

[0009] Optionally, the mining hammer crusher also includes a crushing degree adjustment component installed in the casing below the crushing tooth I, the crushing degree adjustment component includes crushing tooth III, mounting plate II, spring II, screw and handwheel, crushing tooth III is rotatably installed on the casing below the crushing tooth I, mounting plate II is installed on the casing to the right of the crushing tooth I, spring II is connected between mounting plate II and crushing tooth III, a screw is threadedly connected to the mounting plate II, a handwheel is connected to the right end of the screw, and the left end of the screw is in contact with the crushing tooth III.

[0010] Optionally, the mining hammer crusher also includes a screening assembly installed at the bottom of the casing, the screening assembly includes a V-shaped mesh plate, a guide sleeve, a guide rod II, a spring III and an arc-shaped mesh plate, a V-shaped mesh plate is installed at the bottom of the casing, the V-shaped mesh plate is inclined from the middle to the front and rear sides, a guide sleeve is symmetrically installed at the bottom of the V-shaped mesh plate, a guide rod II is slidably connected in the guide sleeve, a spring III is connected between the bottom end of the guide rod II and the guide sleeve, and an arc-shaped mesh plate is connected between the top ends of the guide rod II.

[0011] Optionally, the mining hammer crusher also includes a plug rod, the diameter of the holes on the arc mesh plate is larger than the diameter of the holes on the V-shaped mesh plate, and the plug rods are installed evenly spaced from front to back in the middle of the top of the arc mesh plate, and the plug rods are staggered with the hammer head.

[0012] Optionally, the mining hammer crusher also includes a cleaning assembly installed on the left casing of the hammer crushing assembly, the cleaning assembly includes a cylinder, a slide plate and a scraper column. The cylinder is installed on the left casing of the hammer crushing assembly, a slide plate is connected between the telescopic ends on the right side of the cylinder, the slide plate is slidably connected to the casing, and a row of scrapers is connected to the right side of the slide plate.

[0013] Optionally, the mining hammer crusher also includes a return material assembly installed on the left side of the casing, the return material assembly includes a return material frame, a cylinder, a spiral blade, a dual-shaft motor and a bevel gear. The return material frame is installed on the bottom of the casing, and the return material frame is installed on the front and rear sides of the V-shaped mesh plate. Cylinders are vertically installed on the front and rear sides of the left side of the casing, the lower part of the cylinder is connected to the return material frame, and the upper part of the cylinder is connected to the feed port on the upper part of the casing. Spiral blades are rotatably installed in the cylinder, and a dual-shaft motor is installed on the left side of the bottom of the casing. The output shafts on the front and rear sides of the dual-shaft motor are connected to the bottom ends of the spiral blades with bevel gears, and the bevel gears on the same side are meshed.

[0014] Optionally, the mining hammer crusher also includes a feed adjustment assembly installed at the feed port of the casing, the feed adjustment assembly includes a swing frame, an adjustment plate and a push plate, an adjustment plate is rotatably installed on the casing at the upper part of the feed port, push plates are fixedly connected on the front and rear sides of the adjustment plate, and push plates are symmetrically rotatably installed on the casing below the swing frame, and the adjustment plate is against the outer side of the swing frame.

[0015] The present invention has the following advantages: 1. Because the distance between the mounting plate I and the heavy hammer crushing assembly increases from bottom to top, and because the crushing teeth II can move toward the casing, when the material is too large, the swinging hammer head first crushes the bottom of the material, so that the thickness of the material gradually becomes thinner when it is transported to the lower right, and will not get stuck in the equipment; 2. The present invention can adjust the degree of material crushing through the crushing degree adjustment component, and the present application can better meet the requirements of material crushing; 3. The present invention can adjust the position of the material inlet through the feed adjustment component, thereby preventing the volume of the material from being too large and causing the equipment to get stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown.

[0017] Figure 2 A schematic diagram of the internal three-dimensional structure of the present invention is shown.

[0018] Figure 3 A three-dimensional structural schematic diagram of a heavy hammer crushing assembly of the present invention is shown.

[0019] Figure 4 A three-dimensional structural schematic diagram of the progressive crushing assembly of the present invention is shown.

[0020] Figure 5 A three-dimensional structural schematic diagram of the crushing degree adjustment component and the screening component of the present invention is shown.

[0021] Figure 6 A three-dimensional structural schematic diagram of the crushing degree adjustment component of the present invention is shown.

[0022] Figure 7 A schematic diagram of the three-dimensional structure of the screening assembly of the present invention is shown.

[0023] Figure 8 A three-dimensional structural schematic diagram of the guide sleeve and spring III of the present invention is shown.

[0024] Fig. 9 A three-dimensional structural schematic diagram of the cleaning component of the present invention is shown.

[0025] Fig.10 A three-dimensional structural schematic diagram of the recycling assembly of the present invention is shown.

[0026] Fig.11 A schematic diagram of the three-dimensional structure inside the cylinder of the present invention is shown.

[0027] Fig.12 A three-dimensional structural schematic diagram of the feed regulating assembly of the present invention is shown.

[0028] In the above drawings: 1- housing, 1a- tooth plate, 2- heavy hammer crushing assembly, 21- crushing motor, 22- turntable, 23- connecting shaft, 24- hammer head, 24a- arc groove, 25- counterweight, 3- crushing tooth I, 4- progressive crushing assembly, 41- mounting plate I, 42- guide rod I, 43- crushing tooth II, 44- spring I, 5- crushing degree adjustment assembly, 51- crushing tooth III, 52- mounting plate II, 53- spring II, 54- screw Rod, 55-handwheel, 6-screening assembly, 61-V-shaped mesh plate, 62-guide sleeve, 63-guide rod II, 64-spring III, 65-arc mesh plate, 66-insertion rod, 7-cleaning assembly, 71-cylinder, 72-slide plate, 73-scraper column, 8-return material assembly, 81-return material frame, 82-cylinder, 83-spiral blade, 84-dual-axis motor, 85-bevel gear, 9-feed adjustment assembly, 91-swing frame, 92-adjustment plate, 93-push plate. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0030] Embodiment: A mining hammer crusher, such as Figure 1-Figure 4As shown, it includes a casing 1, a tooth plate 1a, a heavy hammer crushing assembly 2, a crushing tooth Ⅰ3 and a progressive crushing assembly 4. A feed port is opened on the upper left side of the casing 1, and a tooth plate 1a is installed on the lower wall of the feed port. A heavy hammer crushing assembly 2 is installed in the middle part of the casing 1, and a crushing tooth Ⅰ3 is fixedly connected to the inner wall of the casing 1 on the right side of the heavy hammer crushing assembly 2. A progressive crushing assembly 4 is installed on the inner wall of the casing 1 above the crushing tooth Ⅰ3.

[0031] When using the device to crush materials, first put the materials in through the feed port on the left side of the casing 1, and then gradually crush the materials through the cooperation of the progressive crushing component 4 and the heavy hammer crushing component 2, and the crushed materials flow out through the casing 1.

[0032] like Figure 2 and Figure 3 As shown, the heavy hammer crushing assembly 2 includes a crushing motor 21, a turntable 22, a connecting shaft 23, a hammer head 24 and a counterweight 25. The turntable 22 is rotatably installed in the middle of the casing 1, and the crushing motor 21 is fixedly connected to the middle of the casing 1 by bolts. The output shaft of the crushing motor 21 is connected to the center of the turntable 22. Four connecting shafts 23 parallel to the output shaft of the crushing motor 21 are installed on the turntable 22. At least two hammer heads 24 are rotatably installed on the connecting shafts 23. The counterweight 25 is fixedly connected to one end of the hammer head 24 close to the axis of the turntable 22, and an arc groove 24a for assisting in crushing materials is opened at one end of the hammer head 24 away from the axis of the turntable 22.

[0033] like Figure 2 and Figure 4 As shown, the progressive crushing assembly 4 includes a mounting plate Ⅰ41, a guide rod Ⅰ42, a crushing tooth Ⅱ43 and a spring Ⅰ44. A row of mounting plates Ⅰ41 is installed on the inner wall of the casing 1 above the crushing tooth Ⅰ3. The distance between the mounting plate Ⅰ41 and the heavy hammer crushing assembly 2 increases from bottom to top. The mounting plate Ⅰ41 is symmetrically slidably connected with the guide rod Ⅰ42 in the front and back directions. A crushing tooth Ⅱ43 is connected between the bottom ends of the guide rod Ⅰ42 on each mounting plate Ⅰ41, and a spring Ⅰ44 is connected between the crushing tooth Ⅱ43 and the mounting plate Ⅰ41.

[0034] Before crushing the material, the crushing motor 21 is controlled to rotate clockwise, driving the turntable 22 to rotate, thereby driving the connecting shaft 23 to rotate, so that the hammer head 24 starts to swing, and the material is put in through the feed port. At this time, because the distance between the mounting plate Ⅰ41 and the heavy hammer crushing assembly 2 increases from bottom to top, and because the crushing tooth Ⅱ43 can move toward the casing 1, when the material is too large, the swinging hammer head 24 first crushes the bottom of the material, so that the thickness of the material gradually becomes thinner when it is transported to the lower right, and the material will not be stuck in the equipment. After the material is crushed, the crushing motor 21 is controlled to stop working. At this time, the hammer head 24 swings downward under the action of gravity, and the material remaining on the hammer head 24 falls down to prevent the material from being stuck on the hammer head 24 and affecting the next operation of the equipment.

[0035] like Figure 5 and Figure 6 As shown, it also includes a crushing degree adjustment component 5 installed on the casing 1 below the crushing tooth I3, and the crushing degree adjustment component 5 includes a crushing tooth III51, a mounting plate II52, a spring II53, a screw 54 and a handwheel 55. The crushing tooth III51 is rotatably installed on the casing 1 below the crushing tooth I3, and a mounting plate II52 is installed on the casing 1 on the right side of the crushing tooth I3. A spring II53 is connected between the mounting plate II52 and the crushing tooth III51. The mounting plate II52 is threadedly connected to the screw 54, and the right end of the screw 54 is connected to the handwheel 55. The left end of the screw 54 is in contact with the crushing tooth III51.

[0036] When the material needs to be crushed to a specified degree of fineness, the hand wheel 55 is rotated clockwise or counterclockwise to drive the screw 54 to rotate clockwise or counterclockwise to move left or right. When the screw 54 moves to the left, it drives the crushing tooth III 51 to swing left, and the spring II 53 is stretched, so that the gap between the crushing tooth III 51 and the hammer head 24 is reduced, and the material is crushed more finely. When the screw 54 moves to the right, under the action of the spring II 53 resetting, it drives the crushing tooth III 51 to move right, and the gap between the crushing tooth III 51 and the hammer head 24 is increased, and the material is crushed more coarsely. When the gap between the crushing tooth III 51 and the hammer head 24 is adjusted to the required distance, stop rotating the hand wheel 55.

[0037] like Figure 7 and Figure 8As shown, it also includes a screening component 6 installed at the bottom of the casing 1, and the screening component 6 includes a V-shaped mesh plate 61, a guide sleeve 62, a guide rod II 63, a spring III 64, an arc-shaped mesh plate 65 and an insertion rod 66. A V-shaped mesh plate 61 is installed at the bottom of the casing 1, and the V-shaped mesh plate 61 is inclined from the middle to the front and rear sides. A guide sleeve 62 is symmetrically installed at the bottom of the V-shaped mesh plate 61, and a guide rod II 63 is slidably connected in the guide sleeve 62. A spring III 64 is connected between the bottom end of the guide rod II 63 and the guide sleeve 62, and an arc-shaped mesh plate 65 is connected between the top end of the guide rod II 63. The diameter of the holes on the arc-shaped mesh plate 65 is larger than the diameter of the holes on the V-shaped mesh plate 61. Insertion rods 66 are evenly spaced from front to back in the middle of the top of the arc-shaped mesh plate 65, and the insertion rods 66 are staggered from the hammer head 24.

[0038] like Fig. 9 As shown, it also includes a cleaning component 7 installed on the left side casing 1 of the heavy hammer crushing component 2, and the cleaning component 7 includes a cylinder 71, a slide plate 72 and a scraper column 73. The cylinder 71 is installed on the left side casing 1 of the heavy hammer crushing component 2, and a slide plate 72 is connected between the telescopic ends on the right side of the cylinder 71. The slide plate 72 is slidably connected to the casing 1, and a row of scrapers 73 is connected to the right side of the slide plate 72.

[0039] like Fig.10 and Fig.11 As shown, it also includes a return material component 8 installed on the left part of the casing 1, and the return material component 8 includes a return material frame 81, a cylinder 82, a spiral blade 83, a double-axis motor 84 and a bevel gear 85. The return material frame 81 is installed at the bottom of the casing 1, and the return material frame 81 is installed on the front and rear sides of the V-shaped mesh plate 61. Cylinders 82 are vertically installed on the front and rear sides of the left part of the casing 1. The lower part of the cylinder 82 is connected to the return material frame 81, and the upper part of the cylinder 82 is connected to the feed port on the upper part of the casing 1. A spiral blade 83 is rotatably installed in the cylinder 82. A double-axis motor 84 is installed on the left side of the bottom of the casing 1, and the output shafts on the front and rear sides of the double-axis motor 84 are connected to the bottom of the spiral blade 83 with bevel gears 85, and the bevel gears 85 on the same side are meshed.

[0040] The crushed material falls on the arc-shaped mesh plate 65. If the material is smaller than the holes on the arc-shaped mesh plate 65, the material passes through the holes on the arc-shaped mesh plate 65 and falls onto the V-shaped mesh plate 61. If the material is smaller than the holes on the V-shaped mesh plate 61, the material passes through the holes on the V-shaped mesh plate 61 and falls out of the equipment. If the material is larger than the holes on the V-shaped mesh plate 61, the material slides along the V-shaped mesh plate 61 to the front and rear sides into the return frame 81, and then enters the cylinder 82 through the return frame 81. At this time, the dual-axis motor 84 is controlled to rotate, and the spiral blade 83 is driven to rotate through the bevel gear 85 to transport the material in the cylinder 82 upward back to the position of the feeding port of the casing 1, and enters again. The material is crushed. At the same time, if there is material stuck between the hammer heads 24, because the insertion rod 66 is staggered with the hammer heads 24, when the material passes through the insertion rod 66, the insertion rod 66 will break the material stuck between the hammer heads 24, so as to prevent the hammer heads 24 from getting stuck and causing the material crushing effect to be reduced. When the material is crushed, the positions of the slide plate 72 and the scraper column 73 are adjusted by controlling the cylinder 71. When the hammer head 24 passes through the scraper column 73, the scraper column 73 scrapes off the material attached to the surface of the hammer head 24 to prevent the residual material on the surface of the hammer head 24 from affecting the work of the hammer head 24. This is repeated until the material is crushed to meet the requirements, and the dual-axis motor 84 is controlled to stop working.

[0041] like Fig.12 As shown, it also includes a feed adjustment component 9 installed at the feed port of the casing 1, and the feed adjustment component 9 includes a swing frame 91, an adjustment plate 92 and a push plate 93. The adjustment plate 92 is rotatably installed on the casing 1 at the upper part of the feed port, and the push plates 93 are fixedly connected to the front and rear sides of the adjustment plate 92. The push plates 93 are symmetrically rotatably installed on the casing 1 below the swing frame 91, and the adjustment plate 92 is against the outer side of the swing frame 91.

[0042] In order to better protect the equipment and prevent the material from being too large and causing the equipment to get stuck, before crushing the material, the adjustment plate 92 can be rotated upward or downward to adjust the height of the lowest point of the adjustment plate 92. At the same time, when the adjustment plate 92 is rotated upward, the push plate 93 rotates counterclockwise. At this time, the swing frame 91 is no longer supported by the push plate 93, and the swing frame 91 can be opened at a larger angle, and more materials can be placed in it. When the adjustment plate 92 is rotated downward, the push plate 93 rotates clockwise. At this time, the swing frame 91 is pushed by the push plate 93 to swing toward the middle, and the swing frame 91 can be opened at a smaller angle, and smaller materials can be placed in it.

[0043] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A heavy hammer crusher for mining, comprising a housing (1), a tooth plate (1a), a heavy hammer crushing assembly (2), a crushing tooth I (3) and a progressive crushing assembly (4), wherein a feed port is provided at the upper left portion of the housing (1), the tooth plate (1a) is mounted on the lower wall of the feed port, the heavy hammer crushing assembly (2) is mounted in the middle portion of the housing (1), the crushing tooth I (3) is fixedly connected to the inner wall of the housing (1) on the right side of the heavy hammer crushing assembly (2), and the progressive crushing assembly (4) is mounted on the inner wall of the housing (1) above the crushing tooth I (3), wherein: The progressive crushing assembly (4) comprises a mounting plate I (41), a guide rod I (42), a crushing tooth II (43) and a spring I (44). A row of the mounting plates I (41) is mounted on the inner wall of the housing (1) above the crushing tooth I (3). The distance between the mounting plates I (41) and the heavy hammer crushing assembly (2) increases from bottom to top. The mounting plates I (41) are symmetrically slidably connected to the guide rods I (42) in the front and rear directions. The crushing tooth II (43) is connected between the bottom ends of the guide rods I (42) on each of the mounting plates I (41). The spring I (44) is connected between the crushing tooth II (43) and the mounting plate I (41).

2. A mining hammer crusher according to claim 1, characterized in that: The heavy hammer crushing assembly (2) comprises a crushing motor (21), a rotating disk (22), a connecting shaft (23), a hammer head (24) and a counterweight (25). The rotating disk (22) is rotatably mounted in the middle of the housing (1). The crushing motor (21) is fixedly connected to the middle of the housing (1). The output shaft of the crushing motor (21) is connected to the center of the rotating disk (22). Four connecting shafts (23) parallel to the output shaft of the crushing motor (21) are mounted on the rotating disk (22). At least two hammer heads (24) are rotatably mounted on each of the connecting shafts (23). The counterweight (25) is fixedly connected to one end of the hammer head (24) close to the axis of the rotating disk (22).

3. A mining hammer crusher according to claim 2, characterized in that: An arc-shaped groove (24a) is formed at one end of the hammer head (24) away from the axis of the rotating disk (22).

4. A mining hammer crusher according to claim 2, characterized in that: The mining hammer crusher further comprises a crushing degree adjustment component (5) mounted on the housing (1) below the crushing tooth I (3), the crushing degree adjustment component (5) comprising a crushing tooth III (51), a mounting plate II (52), a spring II (53), a screw (54) and a hand wheel (55), the crushing tooth III (51) being rotatably mounted on the housing (1) below the crushing tooth I (3), the mounting plate II (52) being mounted on the housing (1) on the right side of the crushing tooth I (3), the spring II (53) being connected between the mounting plate II (52) and the crushing tooth III (51), the screw (54) being connected to the mounting plate II (52) via a thread, the right end of the screw (54) being connected to the hand wheel (55), and the left end of the screw (54) being in contact with the crushing tooth III (51).

5. A mining hammer crusher according to claim 4, characterized in that: The mining hammer crusher further comprises a screening assembly (6) mounted at the bottom of the casing (1), the screening assembly (6) comprising a V-shaped mesh plate (61), a guide sleeve (62), a guide rod II (63), a spring III (64) and an arc-shaped mesh plate (65). The V-shaped mesh plate (61) is mounted at the bottom of the casing (1), the V-shaped mesh plate (61) is inclined from the middle to the front and rear sides, the guide sleeve (62) is symmetrically mounted at the bottom of the V-shaped mesh plate (61), the guide sleeve (62) is slidably connected inside the guide sleeve (62), the spring III (64) is connected between the bottom end of the guide rod II (63) and the guide sleeve (62), and the arc-shaped mesh plate (65) is connected between the top ends of the guide rod II (63).

6. A mining hammer crusher according to claim 5, characterized in that: The mining hammer crusher also includes an insertion rod (66), the diameter of the holes on the arc-shaped mesh plate (65) is larger than the diameter of the holes on the V-shaped mesh plate (61), the insertion rods (66) are evenly spaced from front to back at the top middle of the arc-shaped mesh plate (65), and the insertion rods (66) are staggeredly installed with respect to the hammer head (24).

7. A mining hammer crusher according to claim 6, characterized in that: The mining hammer crusher further comprises a cleaning assembly (7) mounted on the casing (1) on the left side of the hammer crushing assembly (2), the cleaning assembly (7) comprising a cylinder (71), a slide plate (72) and a scraper column (73), the cylinder (71) being mounted on the casing (1) on the left side of the hammer crushing assembly (2), the slide plate (72) being connected between telescopic ends on the right side of the cylinder (71), the slide plate (72) being slidably connected to the casing (1), and a row of scraper columns (73) being connected on the right side of the slide plate (72).

8. A mining hammer crusher according to claim 7, characterized in that: The mining hammer crusher further comprises a material return assembly (8) mounted on the left side of the casing (1), the material return assembly (8) comprising a material return frame (81), a cylinder (82), a spiral blade (83), a dual-shaft motor (84) and a bevel gear (85), the material return frame (81) being mounted on the bottom of the casing (1), the material return frame (81) being mounted on the front and rear sides of the V-shaped mesh plate (61), and the cylinder (82) being vertically mounted on the front and rear sides of the left side of the casing (1). The lower part of the cylinder (82) is connected to the return frame (81), the upper part of the cylinder (82) is connected to the feed port at the upper part of the casing (1), the spiral blade (83) is rotatably installed in the cylinder (82), the double-axis motor (84) is installed on the left side of the bottom of the casing (1), the output shafts on the front and rear sides of the double-axis motor (84) are connected to the bottom end of the spiral blade (83) with the bevel gear (85), and the bevel gears (85) on the same side are meshed.

9. A mining hammer crusher according to claim 8, characterized in that: The mining hammer crusher also includes a feed adjustment component (9) installed at the feed port of the casing (1), the feed adjustment component (9) including a swing frame (91), an adjustment plate (92) and a push plate (93), the adjustment plate (92) being rotatably mounted on the casing (1) at the upper part of the feed port, the push plate (93) being fixedly connected to both the front and rear sides of the adjustment plate (92), the push plate (93) being rotatably mounted on the casing (1) below the swing frame (91), and the adjustment plate (92) being against the outer side of the swing frame (91).

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