Waste metal material crushing and recycling device

Abstract

The invention discloses a waste metal material crushing and recycling device, and relates to the technical field of waste metal material processing. A waste metal material crushing and recycling device comprises a shell, a feeding port is formed in the top of the shell, a crushing part used for crushing metal is arranged in the shell, a driving part used for driving the crushing part to operate is installed on the shell, grates are arranged on the inner wall of the bottom of the shell, and a feeding port is formed in the top of the shell. A discharge hole is formed in the bottom of the shell and is positioned on the grate; through the combination of intermittent high-speed cooling airflow dynamic regulation and control and an intelligent lubrication compensation mechanism, a local airflow protection layer is formed in the running process of a crushing part, chippings are effectively prevented from invading a friction interface, the heat shielding effect is broken through turbulence disturbance, meanwhile, the continuous running time of equipment is prolonged in a self-lubricating compensation mode on a wear area, and the service life of the equipment is prolonged. And the problems of abnormal wear, high energy consumption and frequent maintenance of the hammer shaft of the traditional crusher are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of waste metal material processing, and particularly relates to a waste metal material crushing and recycling device. Background Art

[0002] The hammer crusher is the core equipment for processing large-volume metal wastes such as automobile wrecks and household appliance shells. Its core crushing unit consists of a swing hammer group and a hammer shaft: the swing hammers rotate at high speed through centrifugal force to impact the materials, and the hammer shaft, as the rotating support shaft of the swing hammers, needs to bear periodic impact loads and frictional wear.

[0003] However, in the actual application of the prior art, during non-metal crushing and processing, metal debris enters the gap between the hammer holes and the hammer shaft. Under the combined action of frictional heat and impact load, adhesive wear and oxidative wear occur on the surface of the hammer shaft, resulting in a decreasing diameter, and finally leading to eccentric vibration of the swing hammers or even fracture of the hammer shaft. Moreover, due to thermal deformation caused by high-temperature friction, it is inconvenient for the equipment to compensate lubrication without shutting down, reducing the crushing and processing quality of the materials. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a waste metal material crushing and recycling device that can overcome or at least partially solve the above problems.

[0005] To solve the above technical problem, the basic concept of the technical solution adopted by the present invention is: a waste metal material crushing and recycling device, including a housing, an inlet is provided at the top of the housing, a crushing member for crushing metals is provided inside the housing, a driving member for driving the crushing member to operate is installed on the housing, a grate is provided on the inner bottom wall of the housing, and an outlet is provided on the bottom of the housing on the grate. It further includes: Among them, the crushing member includes a driving shaft rotatably connected to the inner wall of the housing through a bearing, and the driving shaft has a hollow structure; fixed disks are evenly distributed and installed on the outer wall of the driving shaft and are communicated with the driving shaft; a plurality of hammer shafts are installed on the fixed disks, and self-lubricating and compensating hammer heads are provided on the hammer shafts; a protective member is provided at the connection between the hammer shaft and the hammer head. When a high-speed cooling air flow is injected into one end of the driving shaft, the friction contact part is preliminarily protected through the protective member. When the air flow is intermittently and strongly and weakly transported into the driving shaft, it is used to assist in crushing some materials inside the housing to reduce the impact load on the hammer heads by large pieces of materials.

[0006] Preferably, a first air inlet cavity is opened inside the driving shaft, a slider is slidably connected inside the first air inlet cavity, a moving rod is fixed at the center of the slider, an air inlet channel is opened inside the moving rod, and a second air inlet cavity is opened inside the fixed disk, and the second air inlet cavity is communicated with the first air inlet cavity.

[0007] Preferably, the protective part includes a third air inlet cavity opened inside the hammer head. The fixed disk is connected to the hammer head through a hose. The second air inlet cavity is communicated with the third air inlet cavity. Jet disks are fixedly installed on both sides of the hammer head. An air guide pipe on one side of the jet disk is communicated with the third air inlet cavity. Jet heads distributed at an oblique angle are installed on the jet disk. A limiting rod is fixedly installed on the side surface of the jet disk, and a ball is embedded in the limiting rod.

[0008] Preferably, a graphite lubricating layer is fixed on the inner wall of the hammer head. A heat-conducting film is fixedly installed at the bottom of the graphite lubricating layer. A microporous groove is arranged at the bottom of the heat-conducting film. Graphite filler is arranged inside the microporous groove. A T-shaped push plate is attached to the bottom of the graphite filler. One end of the T-shaped push plate penetrates through the lining sleeve and fixes a bimetallic strip. The bimetallic strip is embedded and installed on the inner wall of the lining sleeve. A heat-conducting sheet is fixed at the bottom of the heat-conducting film. One end of the heat-conducting sheet penetrates through the lining sleeve and is fixedly connected to the bottom of the bimetallic strip.

[0009] Preferably, an inclined gear is fixedly installed on the outer wall of the drive shaft. A fitting gear meshes with the surface of the inclined gear. A rotating disk is fixedly installed at the center of the fitting gear through a connecting shaft. The surface of the connecting shaft is rotationally connected to a support plate through a bearing. One end of the support plate is fixedly connected to the outer wall of the housing. A connecting rod is rotationally connected to the surface of the rotating disk through a pin shaft. One end of the connecting rod is rotationally connected to a linkage rod through a bearing. One end of the linkage rod is rotationally connected to a moving rod through a bearing.

[0010] Preferably, a sliding seat is rotationally connected to the bottom of the connecting rod through a pin shaft. The sliding seat is slidably connected to a slide rail. One end of the slide rail is fixedly connected to the outer wall of the housing.

[0011] Preferably, a connecting rod is rotationally connected to one side surface of the slider through a pin shaft. A support rod is rotationally connected to the surface of the connecting rod through a pin shaft. A through hole is opened on the surface of the drive shaft inside the housing. One end of the support rod penetrates through the through hole and is fixedly connected to a crushing knife. The crushing knife is in the shape of a quadrangular prism.

[0012] Preferably, a protective sleeve is fixedly installed at the bottom of the crushing knife. The protective sleeve is fixed on the surface of the drive shaft. The support rod is rotationally connected in the through hole through a pin shaft.

[0013] Preferably, a limiting plate is fixedly installed at one end of the hammer shaft. The diameter of the limiting plate is larger than the diameter of the jet disk.

[0014] Preferably, the driving part includes a driving portion fixedly installed on the housing. The output end of the driving portion is fixedly connected to a driving wheel. The surface of the driving wheel is connected to a driven wheel through a synchronous belt. The center of the driven wheel is fixedly connected to the drive shaft.

[0015] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0016] By combining the intermittent high-speed cooling air flow dynamic regulation with the intelligent lubrication compensation mechanism, the present invention forms a local air flow protection layer during the operation of the crushing parts, effectively blocking debris from invading the friction interface and using turbulent disturbance to break the thermal shielding effect. At the same time, by means of self-lubrication compensation for the worn area, the continuous operation time of the equipment is extended, the product quality of the equipment is improved, and the problems of abnormal wear of the hammer shaft of the traditional crusher, high energy consumption and frequent maintenance are solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the drawings:

[0018] Figure 1 is the overall structural schematic diagram of a waste metal material crushing and recycling device proposed by the present invention;

[0019] Figure 2 is the front view side sectional structural schematic diagram of a waste metal material crushing and recycling device proposed by the present invention;

[0020] Figure 3 is the right view sectional structural schematic diagram of a waste metal material crushing and recycling device proposed by the present invention;

[0021] Figure 4 is proposed by the present invention Figure 3 the enlarged structural schematic diagram of area A therein;

[0022] Figure 5 is proposed by the present invention Figure 3 the enlarged structural schematic diagram of area B therein;

[0023] Figure 6 is the partial three-dimensional structural schematic diagram of the crushing parts proposed by the present invention;

[0024] Figure 7 is the partial sectional structural schematic diagram of the lining kit in a waste metal material crushing and recycling device proposed by the present invention;

[0025] Figure 8 is proposed by the present invention Figure 7 the enlarged structural schematic diagram of area C therein.

[0026] In the figure: 1. Housing; 11. Feeding port; 12. Grate bar; 13. Discharge port; 20. Driving part; 21. Driving wheel; 22. Driven wheel; 3. Driving shaft; 31. First air inlet cavity; 32. Slide block; 33. Moving rod; 34. Air inlet channel; 35. Bevel gear; 36. Fitting gear; 37. Rotating disk; 38. Support plate; 39. Connecting rod; 391. Linking rod; 392. Slide base.

[0027] 393. Slide rail; 41. Fixed disk; 42. Hammer shaft; 43. Hammer head; 51. Second air inlet chamber;

[0028] 52. Hose; 53. Third air inlet chamber; 54. Jet disk; 55. Jet head; 56. Limit rod; 61. Connecting rod; 62. Support rod; 63. Through hole; 64. Crushing knife; 65. Protective sleeve; 7. Liner kit; 71. Graphite lubricating layer; 72. Heat-conducting film; 721. Heat-conducting sheet; 73. Micro-pore groove; 74. Graphite filler; 75. T-shaped push plate; 76. Bimetallic strip; 8. Limit plate. Detailed implementation manner

[0029] The following further describes the present invention in detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it according to the description in the specification.

[0030] It should be understood that the terms such as "having", "including", and "comprising" used herein do not exclude the presence or addition of one or more other elements or their combinations.

[0031] In the description of the present invention, the orientation or positional relationship indicated by the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0032] Example 1: Refer to Figures 1-8 , a waste metal material crushing and recycling device, including a housing 1. A feed inlet 11 is provided at the top of the housing 1. A crushing member for crushing metal is provided inside the housing 1. A driving member for driving the crushing member to operate is installed on the housing 1. A grate 12 is provided on the bottom inner wall of the housing 1. A discharge port 13 is provided on the grate 12 at the bottom of the housing 1. It further includes: Among them, the crushing member includes a driving shaft 3 rotatably connected to the inner wall of the housing 1 through a bearing. The driving shaft 3 has a hollow structure; a fixed disk 41 is evenly distributed and installed on the outer wall of the driving shaft 3 and is communicated with the driving shaft 3; a hammer shaft 42 is installed on a plurality of fixed disks 41, and a self-lubricating and compensating hammer head 43 is provided on the hammer shaft 42; a protective member is provided at the connection between the hammer shaft 42 and the hammer head 43. When a high-speed cooling air flow is injected into one end of the driving shaft 3, the friction contact part is preliminarily protected through the protective member. When the air flow in the driving shaft 3 is intermittently and strongly and weakly transported, it is used to assist in crushing some materials in the housing 1 to reduce the impact load of large pieces of materials on the hammer head 43.

[0033] In the present invention, during use, non-metallic materials to be processed are first poured into the interior of the housing 1 from the feed inlet 11. A driving member provided on the housing 1 drives the crushing member to rotate inside the housing 1. The centrifugal force is used to swing the hammer head 43 around the driving shaft 3, and the hammer head 43 is used to hammer and crush the incoming non-metallic materials. The crushed non-metallic materials are screened through the bar screen 12 and fall from the discharge outlet 13, while the larger non-metallic materials are intercepted by the bar screen 12 and continue to be crushed. Considering the actual use, since there is a clearance fit between the hammer hole of the hammer head 43 and the hammer shaft 42, when rotating at high speed, the hammer head 43 expands outward under the action of centrifugal force, resulting in the contact surface between the hammer hole and the hammer shaft 42 changing from a circumferentially evenly distributed contact to a local line contact, causing wear on the surface of the hammer shaft 42. Moreover, when the hammer head 43 strikes and vibrates with waste metal materials, heat is generated by friction at the contact part, making it easy to deform. In the solution, an air inlet structure is provided on the crushing member, so that air is blown at the friction contact part between the hammer shaft 42 and the hammer head 43, thereby forming a protection area to reduce the entry of debris generated during the crushing of waste metal into the friction contact area. At the same time, by using this air blowing structure, the crushing member can be blown to cool down and the service life of the workpiece can be extended. A lubrication compensation mechanism is provided at the hammer hole of the hammer head 43. When the crushing member is working and the hammer head 43 swings up, when the local contact part between the hammer head 43 and the hammer shaft 42 is worn by friction to the limit value after a long time, lubrication compensation can be automatically carried out to ensure the stability of the material processing during one working period of the equipment and improve the output quality of the material crushing and processing. On the other hand, through the provided air inlet structure, the air can be delivered in a strong-weak intermittent manner, avoiding the formation of an instantaneous micro-region negative pressure due to the turbulent impact on the crushing member, accelerating the diffusion of heat to the core of the air flow, and avoiding the "thermal shielding" phenomenon caused by traditional uniform air blowing. Moreover, it can drive the auxiliary tool to swing and assist the hammer head 43 in crushing non-metals, improving the crushing efficiency of the equipment.

[0034] Example 2: Refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 7 and Figure 8, which is basically the same as Embodiment 1, and furthermore: The driving member includes a driving part 20 fixedly installed on the housing 1. The output end of the driving part 20 is fixedly connected with a driving wheel 21. The surface of the driving wheel 21 is connected with a driven wheel 22 through a synchronous belt. The axis of the driven wheel 22 is fixedly connected with the driving shaft 3. A first air inlet cavity 31 is opened inside the driving shaft 3. A slider 32 is slidably connected inside the first air inlet cavity 31. A moving rod 33 is fixed at the axis of the slider 32. An air inlet passage 34 is opened inside the moving rod 33. A second air inlet cavity 51 is opened inside the fixed disk 41. The second air inlet cavity 51 is communicated with the first air inlet cavity 31. The protective member includes a third air inlet cavity 53 opened inside the hammer head 43. The fixed disk 41 and the hammer head 43 are connected by a hose 52. The second air inlet cavity 51 is communicated with the third air inlet cavity 53. Jets 54 are fixedly installed on both sides of the hammer head 43. The air inlet pipe on one side of the jet 54 is connected with the third air inlet cavity 53. Jets 55 distributed at an oblique angle are installed on the jet 54. A limiting rod 56 is fixedly installed on the side of the jet 54. A ball is embedded on the limiting rod 56. A graphite lubricating layer 71 is fixed on the inner wall of the hammer head 43. A heat-conducting film 72 is fixed at the bottom of the graphite lubricating layer 71. A microporous groove 73 is arranged at the bottom of the heat-conducting film 72. Graphite filler 74 is arranged inside the microporous groove 73. The bottom of the graphite filler 74 is attached to a T-shaped push plate 75. One end of the T-shaped push plate 75 penetrates through the lining sleeve 7 and is fixed with a bimetallic strip 76. The bimetallic strip 76 is embedded and installed on the inner wall of the lining sleeve 7. A heat-conducting piece 721 is fixed at the bottom of the heat-conducting film 72. One end of the heat-conducting piece 721 penetrates through the lining sleeve 7 and is fixedly connected with the bottom of the bimetallic strip 76.

[0035] With the above scheme, during use, by starting the driving part 20 to drive the driving wheel 21 to rotate, the driving wheel 21 drives the driven wheel 22 to rotate, and then drives the driving shaft 3 to rotate synchronously. Since the crushing member is installed on the driving shaft 3, it drives the crushing member to rotate inside the housing 1 to crush the materials inside the housing 1. The driving part 20 is replaced by a driving source such as a motor. One end of the driving shaft 3 penetrates through the housing 1 and extends to the outside, and is connected with the air compressor air pipe through a rotary joint. During operation, cold air is conveyed into the driving shaft 3, then passes through the second air inlet cavity 51, enters the third air inlet cavity 53 through the hose 52, and finally is ejected through the provided jet 54. Since the two annularly distributed jets 54 are sleeved on the surface of the hammer shaft 42 and are located on both sides of the hammer head 43, the friction contact surface area between the hammer head 43 and the hammer shaft 42 can be blown. On the one hand, it can cool down the hammer shaft 42 and take away the heat generated by friction. On the other hand, it can use the blowing to generate a protective layer to prevent the broken small fragments from entering the friction contact area, improving the lubrication effect at the hammer head 43;

[0036] Among them, the hose 52 is made of a polyurethane and stainless steel composite wear-resistant material. The inner layer is polyurethane to ensure smooth air flow, and the outer layer is coated with a stainless steel braided mesh, which combines lightweight and tear resistance. A limiting rod 56 is provided on the side of the hammer head 43, and a ball is provided at the end of the limiting rod 56. When the hammer head 43 moves and slides, the setting of the limiting rod 56 has a good limiting effect. The ball is in close contact with the side of the fixed disk 41, and the sliding friction is converted into rolling friction to reduce the damage caused by friction.

[0037] When the hammer head 43 swings, a graphite lubricating layer 71 is provided on the inner wall of the lining sleeve 7, which can preliminarily lubricate and protect the contact area between the hammer head 43 and the hammer shaft 42, reducing the wear and tear on the hammer shaft 42. Due to long-term operation, the graphite lubricating layer 71 is consumed, causing the outer wall of the hammer shaft 42 to come into frictional contact with the heat-conducting film 72 in a local area. The heat-conducting film 72 is made of a paraffin composite film material. For example, when the temperature generated by friction on the hammer shaft 42 reaches the melting point of the heat-conducting film 72, the contact at the microporous groove 73 is in a sealed state, and the heat-conducting piece 721 transfers the heat at the heat-conducting film 72 to the bimetallic strip 76, causing the bimetallic strip 76 to undergo a thermal deformation, squeezing the T-shaped push plate 75 to eject the graphite filler 74 from the microporous groove 73, so that the lubrication of the local frictional contact area of the hammer shaft 42 is replenished. A resistive force-sensitive sensor is provided in the installation chamber of the bimetallic strip 76 inside the lining sleeve 7, and the model is a commonly used model in the market. When the bimetallic strip 76 deforms and contacts the resistive force-sensitive sensor, a signal is transmitted to the control computer outside the device, reminding the staff that the wear in this area is serious and the equipment needs to be shut down for maintenance after the end of this time period. This effectively reduces the shutdown and maintenance time of the equipment. When a failure occurs during one working period of the equipment, there is no need to immediately stop the machine for repair, ensuring the integrity of the equipment when processing a batch of scrap metal materials and the quality of the processed products of the equipment.

[0038] It should be noted that the heat-conducting piece 721 is made of a copper sheet, and a 50nm boron nitride h-BN coating is provided between the heat-conducting film 72 and the graphite lubricating layer 71, which has a good heat insulation effect and avoids excessive heat being transferred to the heat-conducting film 72 in advance.

[0039] Example 3: Refer to Figure 4 and Figure 5, which is basically the same as Embodiment 2. Furthermore: An inclined gear 35 is fixedly installed on the outer wall of the drive shaft 3. A fitting gear 36 meshes with the surface of the inclined gear 35. A rotating disk 37 is fixedly installed at the center of the fitting gear 36 through a connecting shaft. A support plate 38 is rotatably connected to the surface of the connecting shaft through a bearing. One end of the support plate 38 is fixedly connected to the outer wall of the housing 1. A connecting rod 39 is rotatably connected to the surface of the rotating disk 37 through a pin shaft. One end of the connecting rod 39 is rotatably connected to a linkage rod 391 through a bearing. One end of the linkage rod 391 is rotatably connected to the moving rod 33 through a bearing. The bottom of the connecting rod 39 is rotatably connected to a sliding seat 392 through a pin shaft. The sliding seat 392 is slidably connected to a slide rail 393. One end of the slide rail 393 is fixedly connected to the outer wall of the housing 1. One side of the slider 32 is rotatably connected to a connecting rod 61 through a pin shaft. A support rod 62 is rotatably connected to the surface of the connecting rod 61 through a pin shaft. A through hole 63 is formed in the surface of the drive shaft 3 inside the housing 1. One end of the support rod 62 penetrates through the through hole 63 and is fixedly connected to a crushing knife 64. The crushing knife 64 is in the shape of a quadrangular prism with edges. A protective sleeve 65 is fixedly installed at the bottom of the crushing knife 64. The protective sleeve 65 is fixed on the surface of the drive shaft 3. The support rod 62 is rotatably connected in the through hole 63 through a pin shaft. One end of the hammer shaft 42 is fixedly installed with a limiting plate 8. The diameter of the limiting plate 8 is larger than the diameter of the air jet disk 54.

[0040] With the above solution, when the drive shaft 3 rotates, it drives the inclined gear 35 to rotate synchronously. The inclined gear 35 meshes with the fitting gear 36 for transmission. Then, in cooperation with the rotating disk 37, the connecting rod 39, and the linkage rod 391, the slider 32 at one end of the moving rod 33 slides left and right inside the drive shaft 3. Since the first air inlet chamber 31 is filled with air flow, while generating strong and weak intermittent air flow transmission through the pushing and squeezing force of the slider 32, it also drives the connecting rod 61 to reciprocate synchronously. The crushing knife 64 is driven by the provided support rod 62 to swing slightly left and right. Since the crushing knife 64 has four edges, with the rotation of the drive shaft 3 and simultaneous swinging operation, it can better crush the waste metal materials inside the housing 1, and can prevent the materials from getting stuck between two adjacent fixed disks 41, improving the working efficiency while assisting in crushing and also achieving a cleaning effect. The setting of the protective sleeve 65 provides a protective and sealing effect for the through hole 63, preventing cold air from escaping. Among them, the protective sleeve 65 is made of the same material as the hose 52.

[0041] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can be made. These are all equivalent modifications and evolutions based on the essence of the present invention to the above embodiments, and all fall within the protection scope of the present invention.

Claims

1. A waste metal material crushing and recycling device, comprising a housing (1). A feed inlet (11) is provided at the top of the housing (1). Inside the housing (1), there is a crushing member for crushing metals. A driving member for driving the crushing member to operate is installed on the housing (1). A grate bar (12) is provided on the bottom inner wall of the housing (1). An outlet (13) is provided on the bottom of the housing (1) and located on the grate bar (12). It is characterized in that, It further includes: Among them, the crushing part includes a driving shaft (3) rotatably connected to the inner wall of the housing (1) through a bearing, and the driving shaft (3) has a hollow structure; Fixed disks (41) are installed on the outer wall of the driving shaft (3) at equal intervals and communicate with the driving shaft (3); A plurality of hammer shafts (42) are installed on the fixed disks (41), and self-lubricating and compensating hammer heads (43) are arranged on the hammer shafts (42); A protective part is arranged at the connection between the hammer shaft (42) and the hammer head (43). When high-speed cooling air flow is injected into one end of the driving shaft (3), the friction contact part is preliminarily protected through the protective part. When the air flow in the driving shaft (3) is intermittently and strongly and weakly transported, it is used to assist in crushing some materials in the housing (1) to reduce the impact load of large pieces of materials on the hammer head (43).

2. The waste metal material crushing and recycling device according to claim 1, wherein, A first air inlet cavity (31) is opened inside the driving shaft (3), a slider (32) is slidably connected inside the first air inlet cavity (31), a moving rod (33) is fixed at the center of the slider (32), an air inlet channel (34) is opened inside the moving rod (33), a second air inlet cavity (51) is opened inside the fixed disk (41), and the second air inlet cavity (51) communicates with the first air inlet cavity (31).

3. The waste metal material crushing and recycling device according to claim 2, characterized in that, The protective part includes a third air inlet cavity (53) opened inside the hammer head (43), the fixed disk (41) is connected to the hammer head (43) through a hose (52), the second air inlet cavity (51) communicates with the third air inlet cavity (53), air jet disks (54) are fixedly installed on both sides of the hammer head (43), an air guide pipe on one side of the air jet disk (54) is connected to the third air inlet cavity (53), air jet heads (55) are installed on the air jet disk (54) at an oblique angle, a limiting rod (56) is fixedly installed on the side surface of the air jet disk (54), and a ball is embedded on the limiting rod (56).

4. A waste metal material crushing and recycling device according to claim 3, characterized in that, A graphite lubricating layer (71) is fixed on the inner wall of the hammer head (43), a heat-conducting film (72) is fixedly installed at the bottom of the graphite lubricating layer (71), a microporous groove (73) is arranged at the bottom of the heat-conducting film (72), a graphite filler (74) is arranged inside the microporous groove (73), a T-shaped push plate (75) is attached to the bottom of the graphite filler (74), one end of the T-shaped push plate (75) penetrates through the lining sleeve (7) and fixes a bimetallic strip (76), the bimetallic strip (76) is embedded and installed on the inner wall of the lining sleeve (7), a heat-conducting sheet (721) is fixed at the bottom of the heat-conducting film (72), and one end of the heat-conducting sheet (721) penetrates through the lining sleeve (7) and is fixedly connected to the bottom of the bimetallic strip (76).

5. A waste metal material crushing and recycling device according to claim 1, characterized in that, An inclined gear (35) is fixedly installed on the outer wall of the drive shaft (3). A fitting gear (36) meshes with the surface of the inclined gear (35). A rotating disc (37) is fixedly installed at the center of the fitting gear (36) through a connecting shaft. A support plate (38) is rotatably connected to the surface of the connecting shaft through a bearing. One end of the support plate (38) is fixedly connected to the outer wall of the housing (1). A connecting rod (39) is rotatably connected to the surface of the rotating disc (37) through a pin shaft. One end of the connecting rod (39) is rotatably connected to a linkage rod (391) through a bearing. One end of the linkage rod (391) is rotatably connected to the moving rod (33) through a bearing.

6. The scrap metal material crushing and recycling device according to claim 5, wherein, A sliding seat (392) is rotatably connected to the bottom of the connecting rod (39) through a pin shaft. The sliding seat (392) is slidably connected to a slide rail (393). One end of the slide rail (393) is fixedly connected to the outer wall of the housing (1).

7. An apparatus for crushing and recycling waste metal materials according to claim 2, characterized in that, One side surface of the slider (32) is rotatably connected to a connecting rod (61) through a pin shaft. A support rod (62) is rotatably connected to the surface of the connecting rod (61) through a pin shaft. A through hole (63) is formed in the surface of the drive shaft (3) inside the housing (1). One end of the support rod (62) passes through the through hole (63) and is fixedly connected to a crushing knife (64). The crushing knife (64) is in the shape of a quadrangular prism.

8. A waste metal material crushing and recycling device according to claim 7, characterized in that, A protective sleeve (65) is fixedly installed at the bottom of the crushing knife (64). The protective sleeve (65) is fixed on the surface of the drive shaft (3). The support rod (62) is rotatably connected inside the through hole (63) through a pin shaft.

9. The waste metal material crushing and recycling device according to claim 8, characterized in that, A limiting plate (8) is fixedly installed at one end of the hammer shaft (42). The diameter of the limiting plate (8) is larger than the diameter of the air jet disc (54).

10. The scrap metal material crushing and recycling device according to claim 1, characterized in that, The driving member includes a driving part (20) fixedly installed on the housing (1). The output end of the driving part (20) is fixedly connected to a driving wheel (21). The surface of the driving wheel (21) is connected to a driven wheel (22) through a synchronous belt. The center of the driven wheel (22) is fixedly connected to the drive shaft (3).

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