Motorcycle production material crushing and drying treatment device

By combining dual-shaft shearing pulverization, airflow pulverization, and a graded impeller structure, the ultra-fine pulverization and drying of motorcycle production materials are integrated, solving the problem of low pulverization efficiency in existing technologies and improving processing efficiency and quality.

CN121892259APending Publication Date: 2026-04-21CHONGQING REX MOTORCYCLE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING REX MOTORCYCLE CO LTD
Filing Date
2026-03-20
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing motorcycle manufacturing material crushing equipment cannot produce ultrafine powders, and the drying and crushing processes are carried out separately, resulting in low processing efficiency.

Method used

By combining a dual-shaft shearing and pulverizing structure, an airflow pulverizing structure, and a staged impeller structure, and utilizing a spiral extended pipeline path for external heating conduction, coarse crushing, fine crushing, and grading are integrated, and drying is completed during the conveying process.

Benefits of technology

It improves the efficiency of material handling, achieves ultrafine grinding and efficient drying, avoids intermediate transfer, and improves grinding quality and processing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The motorcycle production material crushing and drying treatment device comprises a first crushing mechanism, the first crushing mechanism comprises a rack, a crushing assembly and a screening assembly are arranged on the rack, and the screening assembly is connected with a second crushing mechanism through a collecting hopper and a conveying pipe; the second crushing mechanism comprises a crushing tank, a grading tank and an air bag, the grading tank is located above the crushing tank, the grading tank is connected with the drying mechanism through a drying pipeline, the air inlet end of the air bag is connected with an air inlet pipe, the air inlet pipe is connected with an air compressor assembly, the air outlet end of the air bag is connected with an exhaust pipe, and the exhaust pipe is connected with four groups of shunt pipes. And the four groups of shunting pipes are connected with nozzles. According to the technical scheme, a double-shaft shearing and crushing structure, an airflow crushing structure and a grading impeller structure are combined, coarse crushing, fine crushing and grading are integrated, conveying and drying are integrated through spiral extension of a pipeline path and external heat conduction, and the treatment efficiency is improved.
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Description

Technical Field

[0001] This invention relates to the field of motorcycle production material processing technology, and in particular to a device for crushing and drying motorcycle production materials. Background Technology

[0002] Motorcycle production materials can be functionally categorized into raw materials, core components, auxiliary materials, standard parts, and special-type materials. Raw materials are the initial form of components and require processing (such as smelting, synthesis, and molding) to transform them into usable parts. Crushing (reducing particle size) and drying (removing moisture / solvents) are not necessary for all materials, but are core pretreatment or recycling methods for specific materials at specific stages. Pretreatment of raw materials meets the requirements of molding processes, and waste recycling achieves resource reuse. Motorcycle production materials are primarily composed of metals, plastics, rubber, and electronic materials, covering the entire chain from raw materials to finished products. Crushing and drying are key operations for specific stages such as powder metallurgy, plastic / rubber processing, waste recycling, and electronics / battery manufacturing.

[0003] When crushing materials, shear crushing equipment is often used. However, shear crushing equipment can only crush materials to a medium-fine state and cannot obtain ultrafine powder. It is necessary to transfer the materials to other equipment for further crushing. Drying and crushing are carried out separately, resulting in low processing efficiency. Summary of the Invention

[0004] Technical problems to be solved: To address the shortcomings of existing technologies, this invention provides a crushing and drying device for motorcycle production materials. It combines a dual-shaft shearing crushing structure, an airflow crushing structure, and a grading impeller structure to achieve integrated coarse crushing, fine crushing, and grading. By utilizing a spiral to extend the pipeline path and external heating conduction, it achieves integrated conveying and drying, thereby improving processing efficiency and solving the technical problems mentioned in the background art. Technical solution

[0005] To achieve the above objectives, the present invention provides the following technical solution: A motorcycle manufacturing material crushing and drying device includes a first crushing mechanism, which includes a frame on which crushing components and screening components are mounted. The screening components are connected to a second crushing mechanism via a collection hopper and a conveying pipe. Before entering the second crushing mechanism, the material passes through a screening area and is screened by the screening components to ensure that the feed particle size meets the strict requirements of airflow pulverization. The second crushing mechanism includes a crushing tank, a grading tank, and an air reservoir. The air reservoir stores compressed air and buffers pressure fluctuations, outputting a stable, clean, and continuous supersonic airflow. The grading tank is located above the crushing tank and is connected to a drying mechanism via a drying pipeline. The air reservoir's inlet end is connected to an inlet pipe, which is connected to an air compressor assembly. The air compressor assembly compresses atmospheric pressure air to high pressure, providing the initial kinetic energy for the high-speed airflow in airflow pulverization. The air reservoir's exhaust end is connected to an exhaust pipe, which is connected to four sets of... The four sets of diversion pipes are all connected to nozzles. The four sets of nozzles are evenly distributed along the circumference of the grinding tank. The nozzles accelerate the high-pressure compressed air output from the air compressor to supersonic speed through the Laval nozzles, forming a high-speed airflow field. The high-speed airflow entrains and accelerates the material falling into the feed inlet, giving the material sufficient kinetic energy. In the grinding chamber, the high-speed airflow drives the material to make a spiral motion, and the grinding is achieved through high-frequency collisions between the materials. A third motor is installed on one side of the classifying tank. The output shaft of the third motor is fixedly connected to the classifying impeller. A discharge port is provided on the other side of the classifying tank. The drying pipeline includes a spiral conveying pipe and a first heating jacket. The first heating jacket is sleeved on the outside of the spiral conveying pipe. The heating element is embedded in a flexible matrix material to make a flexible heating jacket structure. The spiral extends the pipeline path and conducts external heating to achieve integrated conveying and drying, and timely drying of the material after airflow grinding.

[0006] In one possible implementation, the drying mechanism includes a collection tank, and a second heating jacket is fixedly disposed on the outside of the collection tank.

[0007] In one possible implementation, the collecting tank is provided with a second inlet, one end of the spiral conveying pipe is connected to the second inlet of the collecting tank, and the other end of the spiral conveying pipe is connected to the discharge port of the classifying tank. The material, which has been heated and dried by the drying pipeline, enters the collecting tank through the second inlet and is reheated by the second heating jacket outside the collecting tank to remove the residual moisture after the initial heating, eliminate the internal temperature gradient of the material, and achieve deep heating.

[0008] In one possible implementation, a discharge pipe is provided at the lower end of the collection tank, and a valve is installed on the discharge pipe. When the valve is opened, the material after crushing and drying is discharged through the discharge pipe.

[0009] In one possible implementation, the crushing assembly includes a crushing chamber, inside which a first crushing blade roller and a second crushing blade roller are installed. The first crushing blade roller is connected to the crushing chamber via a bearing, and the second crushing blade roller is also connected to the crushing chamber via a bearing. The first crushing blade roller and the second crushing blade roller are driven by a gear transmission box, which is connected to a first motor. The first motor drives the first crushing blade roller and the second crushing blade roller to rotate in opposite directions. The serrations of the blades generate a shearing force perpendicular to the material surface, thereby achieving crushing.

[0010] In one possible implementation, a guide hopper is provided at the lower end of the crushing box, and the crushed material falls into the guide hopper and is guided by the guide hopper into the screening cylinder.

[0011] In one possible implementation, the screening assembly includes a base and a screening cylinder, the screening cylinder and the base are connected by a bearing seat, a toothed ring is fixedly sleeved on the screening cylinder, and multiple sets of screen holes are opened on the screening cylinder, the multiple sets of screen holes being evenly distributed at intervals.

[0012] In one possible implementation, the screening cylinder is driven to rotate by a second motor. The output shaft of the second motor is fixedly connected to a gear, which meshes with a gear ring. The second motor drives the gear at one end to rotate, which in turn drives the gear ring. The gear ring drives the screening cylinder to rotate relative to the base. The material crushed by the first crushing mechanism enters the screening cylinder through the guide hopper and follows the movement of the screening cylinder. The material is then screened by the screening components.

[0013] In one possible implementation, the feed hopper of the crushing component extends into the screening cylinder, and a guide plate is fixedly installed on the base. The guide plate is located at the discharge end of the screening cylinder. Material with qualified particle size passes through multiple sets of screen holes in the screening cylinder and falls into the collection hopper. It then enters the crushing tank of the second crushing mechanism through the conveying pipe. Material with unqualified particle size is discharged through the discharge end of the screening cylinder.

[0014] In one possible implementation, a slot is provided at the lower end of the base, a hopper is fixedly connected to the lower end of the base, a conveying pipe is fixedly connected to the hopper, a first inlet is provided on the side of the crushing tank, the conveying pipe is connected to the first inlet, and the qualified materials screened out enter the crushing tank through the first inlet for airflow crushing.

[0015] Compared with the prior art, the beneficial effects of the present invention are: The first crushing mechanism of this invention is a dual-shaft shearing crushing structure, used as a primary coarse crushing mechanism to process large or medium-sized materials in motorcycle production. The second crushing mechanism is an airflow crushing structure, used as a secondary fine crushing mechanism to process the medium-sized materials after dual-shaft shearing. The classifying impeller rotates at high speed under the drive of a third motor to generate a centrifugal force field, classifying the materials. Coarse particles are thrown to the edge and fall back into the crushing chamber of the crushing tank for airflow crushing again until the target particle size is reached. Fine particles with qualified particle size are discharged from the discharge port with the airflow. By combining the dual-shaft shearing crushing structure, the airflow crushing structure, and the classifying impeller structure, coarse crushing, fine crushing, and classification are integrated, improving processing efficiency.

[0016] The material of this invention is dried during the conveying process. By using a spiral to extend the pipeline path and external heating conduction, the conveying and drying are integrated, and the material after airflow pulverization is dried in time, avoiding material agglomeration and clumping. No intermediate transfer is required, thus improving processing efficiency.

[0017] Before entering the second crushing mechanism, the material of the present invention passes through a screening area and is screened by a screening component to ensure that the feed particle size meets the strict requirements of airflow pulverization, so as to achieve efficient and precise crushing effect, improve crushing quality, and avoid efficiency reduction, equipment wear or failure of grading accuracy caused by excessively large particles. Attached Figure Description

[0018] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of one side view of the structure of the present invention; Figure 2 This is a schematic diagram of the structure from another side view of the present invention; Figure 3 This is a schematic diagram of one side view of the second crushing mechanism of the present invention; Figure 4 This is a schematic diagram of the structure of the second crushing mechanism of the present invention from another side view. Figure 5 This is a schematic diagram of the structure of the graded impeller of the present invention; Figure 6 This is a schematic diagram of the drying pipeline of the present invention; Figure 7 This is a schematic diagram of the drying mechanism of the present invention; Figure 8 This is a schematic diagram of the structure of the first crushing mechanism of the present invention; Figure 9 This is a top view of the screening component of the present invention. Figure 10This is a bottom view of the structure of the screening component of the present invention; Figure 11 This is a schematic diagram of the structure of the pulverizing component of the present invention.

[0020] In the diagram: 1. First crushing mechanism; 2. Second crushing mechanism; 3. Drying pipeline; 4. Drying mechanism; 11. Frame; 12. Crushing assembly; 13. Screening assembly; 14. Collection hopper; 15. Conveying pipe; 121. Crushing box; 122. First crushing cutter roller; 123. Second crushing cutter roller; 124. Gear transmission box; 125. First motor; 126. Guide hopper; 131. Base; 132. Screening cylinder; 133. Screen hole; 134. Bearing seat; 35. Gear ring; 136. Second motor; 137. Gear; 138. Guide plate; 21. Crushing tank; 22. Grading tank; 23. Air tank; 24. Air inlet pipe; 25. Exhaust pipe; 26. Diverter pipe; 27. Third motor; 28. Grading impeller; 29. ​​Discharge port; 210. First feed port; 31. Spiral conveyor pipe; 32. First heating jacket; 41. Collection tank; 42. Second heating jacket; 43. Discharge pipe; 44. Valve; 45. Second feed port. Detailed Implementation

[0021] This application provides a motorcycle production material crushing and drying device that combines a dual-shaft shearing crushing structure, an airflow crushing structure, and a grading impeller structure to achieve integrated coarse crushing, fine crushing, and grading. By utilizing a spiral to extend the pipeline path and external heating conduction, it achieves integrated conveying and drying, thereby improving processing efficiency and solving the technical problems mentioned in the background art.

[0022] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows: Example 1: Please refer to Figure 1-11This invention provides a technical solution: a motorcycle production material crushing and drying device, including a first crushing mechanism 1. The first crushing mechanism 1 includes a frame 11, on which a crushing component 12 and a screening component 13 are mounted. The screening component 13 is connected to a second crushing mechanism 2 via a collection hopper 14 and a conveying pipe 15. The second crushing mechanism 2 includes a crushing tank 21, a grading tank 22, and an air manifold 23. The grading tank 22 is located above the crushing tank 21 and is connected to a drying mechanism 4 via a drying pipe 3. The air inlet end of the air manifold 23 is connected to an air inlet pipe 24, which is connected to an air compressor assembly. The exhaust end of the air manifold 23 is connected to an exhaust pipe 25, which is connected to four sets of flow pipes 26. Each of the four sets of flow pipes 26 is connected to a nozzle, and the four sets of nozzles are arranged around the circumference of the crushing tank 21. The grading tank 22 is evenly spaced and equipped with a third motor 27 on one side. The output shaft of the third motor 27 is fixedly connected to the grading impeller 28. The other side of the grading tank 22 is provided with a discharge port 29. The drying pipeline 3 includes a spiral conveying pipe 31 and a first heating jacket 32. The first heating jacket 32 ​​is fitted outside the spiral conveying pipe 31. The spiral conveying pipe 31 has a spiral linear structure. The first heating jacket 32 ​​is a flexible heating jacket. Heating elements such as resistance wire, carbon fiber, and PTC ceramic are embedded in a flexible matrix material such as silicone, glass fiber cloth, and ceramic fiber felt to form a bendable heating jacket structure. A PT100 temperature sensor is embedded inside the flexible heating jacket, which directly contacts the outer wall of the pipe and provides real-time temperature feedback to the central control system to achieve precise control of the heating temperature.

[0023] The first crushing mechanism 1 is a dual-shaft shearing crushing structure, used as a primary coarse crushing unit to process large or medium-sized materials in motorcycle production. After large materials enter the crushing assembly 12, they are clamped by the shearing zone driven by the counter-rotating first crushing roller 122 and second crushing roller 123. The first crushing roller 122 and second crushing roller 123 rotate in opposite directions, and the saw teeth of the blades generate a shearing force perpendicular to the material surface, thereby cutting the large materials and achieving preliminary crushing.

[0024] The second crushing mechanism 2 is an airflow crushing structure used for secondary fine crushing. It processes the medium-crushed material after biaxial shearing. The medium-crushed material enters the crushing chamber of the crushing tank 21 through the conveying pipe 15. It is carried and accelerated by the supersonic airflow and collides with the particles in the chamber at high frequency to achieve ultra-fine crushing. The crushed mixed particles rise with the airflow and enter the area of ​​the classifying impeller 28 of the classifying tank 22. The classifying impeller 28 rotates at high speed under the drive of the third motor 27 to generate a centrifugal force field. The coarse particles are thrown to the edge and fall back into the crushing chamber of the crushing tank 21 for airflow crushing again until the target particle size is reached. The fine particles with qualified particle size are discharged from the discharge port 29 with the airflow and discharged into the drying pipeline 3 behind, flowing along the drying pipeline 3.

[0025] The classifying impeller 28 classifies materials according to particle size by balancing centrifugal force and airflow drag. When the centrifugal force on a particle is greater than the airflow drag, it is thrown back to the crushing zone; otherwise, it enters the collection system with the airflow. The classified particle size can be precisely controlled by adjusting the rotation speed of the classifying impeller 28 or the airflow speed. By combining the dual-shaft shearing crushing structure, the airflow crushing structure, and the classifying impeller 28 structure, coarse crushing, fine crushing, and classification are integrated, thereby improving processing efficiency.

[0026] The air reservoir 23 stores compressed air and buffers pressure fluctuations, outputting a stable, clean, and continuous supersonic airflow. The air compressor assembly compresses atmospheric air to high pressure, providing the original kinetic energy for the high-speed airflow of the air jet mill. The air reservoir 23 can store excess compressed air during air compressor operation and release the stored gas during air compressor shutdown intervals to maintain the continuous operation of the air jet mill and avoid production interruptions.

[0027] The pipeline is designed with a spiral structure and an external heating jacket. Heat is transferred to the material inside the pipeline through the pipe wall, allowing the material to dry during the conveying process. The spiral extends the pipeline path, and the external heating conduction achieves integrated conveying and drying. This allows for timely drying of the material after airflow pulverization, preventing material agglomeration and clumping, eliminating the need for intermediate transfers, and improving processing efficiency.

[0028] The core function of the nozzle is to accelerate airflow, carry materials, and create a crushing environment. The nozzle accelerates the high-pressure compressed air output from the air compressor to supersonic speed through the Laval nozzle, forming a high-speed airflow field. The high-speed airflow entrains and accelerates the material falling into the feed inlet, giving the material sufficient kinetic energy. Inside the crushing chamber, the high-speed airflow drives the material to make a spiral motion, and crushing is achieved through high-frequency collisions between materials.

[0029] In some examples, the drying unit 4 includes a collection tank 41, and a second heating jacket 42 is fixedly disposed on the outside of the collection tank 41.

[0030] In some examples, the collecting tank 41 is provided with a second inlet 45. One end of the spiral conveyor pipe 31 is connected to the second inlet 45 of the collecting tank 41, and the other end of the spiral conveyor pipe 31 is connected to the discharge port 29 of the classifying tank 22. The material after air jet pulverization enters the spiral conveyor pipe 31 through the discharge port 29. The material after being heated and dried by the drying pipeline 3 enters the collecting tank 41 through the second inlet 45 and is reheated by the second heating jacket 42 outside the collecting tank 41 to remove the residual moisture after the initial heating, eliminate the internal temperature gradient of the material, achieve deep heating, and improve the drying quality.

[0031] In some examples, a discharge pipe 43 is provided at the lower end of the collection tank 41, and a valve 44 is installed on the discharge pipe 43. The valve 44 can be opened by using a rotary valve, and the material after crushing and drying is discharged through the discharge pipe 43.

[0032] In some examples, the crushing assembly 12 includes a crushing chamber 121, inside which a first crushing roller 122 and a second crushing roller 123 are installed. The first crushing roller 122 is connected to the crushing chamber 121 by a bearing, and the second crushing roller 123 is connected to the crushing chamber 121 by a bearing. The first crushing roller 122 and the second crushing roller 123 are driven by a gear transmission box 124. The gear transmission box 124 is connected to a first motor 125. The first motor 125 drives the first crushing roller 122 and the second crushing roller 123 to rotate in opposite directions. The serrations of the blades generate a shearing force perpendicular to the material surface, thereby achieving crushing.

[0033] In some examples, a guide hopper 126 is provided at the lower end of the crushing box 121. The crushed material falls into the guide hopper 126 and is guided by the guide hopper 126 to the screening cylinder 132, and moves with the screening cylinder 132. The material is screened by the screening cylinder 132 to ensure that the feed particle size meets the strict requirements of airflow pulverization.

[0034] By adopting the above technical solution: The first crushing mechanism 1 is a dual-shaft shearing crushing structure, used as a primary coarse crushing unit to process large or medium-sized materials in motorcycle production. The second crushing mechanism 2 is an airflow crushing structure, used as a secondary fine crushing unit to process the medium-sized materials after dual-shaft shearing. The classifying impeller 28 rotates at high speed under the drive of the third motor 27 to generate a centrifugal force field, classifying the materials. Coarse particles are thrown to the edge and fall back into the crushing chamber of the crushing tank 21 for airflow crushing again until the target particle size is reached. Fine particles with qualified particle size are discharged from the discharge port 29 with the airflow. By combining the dual-shaft shearing crushing structure, the airflow crushing structure, and the classifying impeller 28 structure, coarse crushing, fine crushing, and classification are integrated, improving processing efficiency.

[0035] The material is dried during the conveying process. The spiral extends the pipeline path and external heating conducts the heat, realizing the integration of conveying and drying. The material after airflow pulverization is dried in time, avoiding material agglomeration and clumping. There is no need for intermediate transfer, thus improving processing efficiency.

[0036] Example 2: Based on Example 1, this example introduces the specific structure of the screening component 13 in the motorcycle production material crushing and drying device. The screening component 13 includes a base 131 and a screening cylinder 132. The screening cylinder 132 is connected to the base 131 through a bearing seat 134. The screening cylinder 132 and the bearing seat 134 are connected through a bearing. The screening cylinder 132 can rotate relative to the bearing seat 134. A toothed ring 135 is fixedly sleeved on the screening cylinder 132. Multiple sets of screen holes 133 are opened on the screening cylinder 132, and the multiple sets of screen holes 133 are evenly distributed.

[0037] Before entering the second crushing mechanism 2, the material passes through the screening area and is screened by the screening component 13 to ensure that the feed particle size meets the strict requirements of airflow pulverization, so as to achieve efficient and precise crushing effect, improve crushing quality, and avoid efficiency reduction, equipment wear or failure of classification accuracy caused by excessively large particles.

[0038] In some examples, the screening cylinder 132 is driven to rotate by a second motor 136, the output shaft of which is fixedly connected to a gear 137, and the gear 137 meshes with the gear ring 135 for transmission.

[0039] In some examples, the feed hopper 126 of the crushing assembly 12 extends into the screening cylinder 132, and a guide plate 138 is fixedly provided on the base 131, with the guide plate 138 located at the discharge end of the screening cylinder 132.

[0040] The second motor 136 drives the gear 137 at one end to rotate. The gear 137 drives the gear ring 135, which in turn drives the screening cylinder 132 to rotate relative to the base 131. The material crushed by the first crushing mechanism 1 enters the screening cylinder 132 through the guide hopper 126 and moves with the screening cylinder 132. The material is screened by the screening component 13. Material with qualified particle size passes through the multiple sets of screen holes 133 of the screening cylinder 132 and falls into the collection hopper 14. It then enters the crushing tank 21 of the second crushing mechanism 2 through the conveying pipe 15. Material with unqualified particle size is discharged through the discharge end of the screening cylinder 132 and discharged to the recycling system. After being lifted by the screw conveyor, it is re-added into the first crushing mechanism 1 for crushing until the particle size is qualified.

[0041] In some examples, a slot is provided at the lower end of the base 131, and a hopper 14 is fixedly connected to the lower end of the base 131. The hopper 14 is fixedly connected to the conveying pipe 15. A first feed inlet 210 is provided on the side of the crushing tank 21. The conveying pipe 15 is connected to the first feed inlet 210. The qualified materials screened out enter the crushing tank 21 through the first feed inlet 210 for airflow crushing.

[0042] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A grinding and drying device for motorcycle production materials, comprising a first grinding mechanism (1), characterized in that: The first crushing mechanism (1) includes a frame (11), on which a crushing component (12) and a screening component (13) are provided. The screening component (13) is connected to the second crushing mechanism (2) through a collection hopper (14) and a conveying pipe (15). The second crushing mechanism (2) includes a crushing tank (21), a grading tank (22), and an air chamber (23). The grading tank (22) is located above the crushing tank (21). The grading tank (22) is connected to the drying mechanism (4) through a drying pipe (3). The air inlet end of the air chamber (23) is connected to an air inlet pipe (24). The air inlet pipe (24) is connected to the air inlet pipe (24). The air compressor assembly is connected, the exhaust end of the air tank (23) is connected to the exhaust pipe (25), the exhaust pipe (25) is connected to the four-group diversion pipe (26), and the four groups of diversion pipes (26) are all connected to nozzles. A third motor (27) is installed on one side of the classifying tank (22), and the output shaft of the third motor (27) is fixedly connected to the classifying impeller (28). A discharge port (29) is provided on the other side of the classifying tank (22). The drying pipeline (3) includes a spiral conveying pipe (31) and a first heating jacket (32), and the first heating jacket (32) is sleeved on the outside of the spiral conveying pipe (31).

2. The motorcycle production material crushing and drying device according to claim 1, characterized in that: The drying mechanism (4) includes a collection tank (41), and a second heating jacket (42) is fixedly installed on the outside of the collection tank (41).

3. The motorcycle production material crushing and drying device according to claim 2, characterized in that: The collection tank (41) is provided with a second inlet (45), one end of the spiral conveying pipe (31) is connected to the second inlet (45) of the collection tank (41), and the other end of the spiral conveying pipe (31) is connected to the discharge port (29) of the grading tank (22).

4. The motorcycle production material crushing and drying device according to claim 3, characterized in that: The lower end of the collection tank (41) is provided with a discharge pipe (43), and a valve (44) is installed on the discharge pipe (43).

5. The motorcycle production material crushing and drying device according to claim 1, characterized in that: The crushing assembly (12) includes a crushing box (121), inside which a first crushing roller (122) and a second crushing roller (123) are installed. The first crushing roller (122) is connected to the crushing box (121) by a bearing, and the second crushing roller (123) is connected to the crushing box (121) by a bearing. The first crushing roller (122) and the second crushing roller (123) are driven by a gear transmission box (124), and the gear transmission box (124) is connected to a first motor (125).

6. The motorcycle production material crushing and drying device according to claim 5, characterized in that: The lower end of the crushing box (121) is provided with a guide hopper (126).

7. The motorcycle production material crushing and drying device according to claim 6, characterized in that: The screening component (13) includes a base (131) and a screening cylinder (132). The screening cylinder (132) is connected to the base (131) through a bearing seat (134). A toothed ring (135) is fixedly sleeved on the screening cylinder (132). Multiple sets of sieve holes (133) are opened on the screening cylinder (132), and the multiple sets of sieve holes (133) are evenly distributed at intervals.

8. The motorcycle production material crushing and drying device according to claim 7, characterized in that: The screening cylinder (132) is driven to rotate by a second motor (136), and the output shaft of the second motor (136) is fixedly connected to a gear (137), which meshes with the gear ring (135) for transmission.

9. The motorcycle production material crushing and drying device according to claim 8, characterized in that: The feed hopper (126) of the crushing component (12) extends into the screening cylinder (132), and a feed guide plate (138) is fixedly installed on the base (131). The feed guide plate (138) is located at the discharge end of the screening cylinder (132).

10. The motorcycle production material crushing and drying device according to claim 9, characterized in that: The lower end of the base (131) is provided with a slot, and the lower end of the base (131) is fixedly connected to the collecting hopper (14). The collecting hopper (14) is fixedly connected to the conveying pipe (15). The side of the crushing tank (21) is provided with a first feed port (210), and the conveying pipe (15) is connected to the first feed port (210).