An eccentric drive structure for a sorter

Abstract

This invention provides an eccentric drive structure for a sorting machine, comprising: two crankshaft assemblies arranged in parallel and spaced apart; four independent screens arranged side-by-side in a transverse direction installed between the two crankshaft assemblies; each crankshaft assembly includes two bearing seats arranged in parallel and spaced apart; a crankshaft body is installed between the two bearing seats; the crankshaft body includes a first eccentric wheel, a first eccentric journal shaft, a first eccentric connecting rod, a second eccentric journal shaft, a second eccentric wheel, a third eccentric journal shaft, a second eccentric connecting rod, a fourth eccentric journal shaft, and a third eccentric wheel; each of the first, second, third, and fourth eccentric journal shafts has an integrally upward-facing screen connecting seat, and each screen connecting seat is connected to an independent screen. This invention allows the four independent screens to vibrate in a staggered and reciprocating manner, enhancing the intricate and complex disturbance to the solid waste on the screens, thereby further improving sorting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sorting equipment technology, specifically to an eccentric drive structure for a sorting machine. Background Technology

[0002] Solid waste refers to solid and semi-solid waste materials generated by humans in production, consumption, daily life, and other activities. With the improvement of people's living standards, the generation of solid waste is constantly increasing, and the treatment of solid waste is receiving increasing attention. For solid waste that is mainly composed of solid particles, sorting is necessary during the treatment process.

[0003] Solid waste requires sorting machines for processing. The eccentric drive structure is crucial for achieving vibratory sorting in these machines. Existing sorting machines typically employ a drive structure like the one disclosed in CN215878764U, a double-layer circular vibrating screen driven by an eccentric shaft. A motor drives the eccentric shaft via a belt, generating excitation force that moves the screen. However, this eccentric drive structure, instead of using multiple independent vibrating screens, relies on a single, integrated screen for vibration. This lack of integration prevents the creation of more complex disturbances to the solid waste on the screen, resulting in lower sorting efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention proposes an eccentric drive structure for a sorting machine, which enables four independent screens to vibrate in a staggered and reciprocating manner, thereby generating more complex disturbances to the solid waste on the screens and further improving sorting efficiency.

[0005] To achieve the above technical solution, this utility model provides an eccentric drive structure for a sorting machine, comprising: two parallel and spaced crankshaft assemblies; four independent screens arranged side-by-side in the transverse direction are installed between the two crankshaft assemblies; a crankshaft drive device is installed on one side of the screens and connected to one of the crankshaft assemblies; each crankshaft assembly includes two parallel and spaced bearing seats; a crankshaft body is installed between the two bearing seats; the crankshaft body includes a first eccentric wheel; an end shaft is integrally provided on the left end face of the first eccentric wheel; the end shaft is inserted into the left end bearing seat and connected to the crankshaft drive device via a coupling; a first eccentric journal shaft is integrally provided on the right end face of the first eccentric wheel; and a first eccentric connecting rod is integrally provided on the right end face of the first eccentric journal shaft. The first eccentric connecting rod has a second eccentric journal shaft integrally formed on its right end face. The second eccentric journal shaft has a second eccentric wheel integrally formed on its right end face. The second eccentric wheel has a third eccentric journal shaft integrally formed on its right end face. The third eccentric journal shaft has a second eccentric connecting rod integrally formed on its right end face. The second eccentric connecting rod has a fourth eccentric journal shaft integrally formed on its right end face. The fourth eccentric journal shaft has a third eccentric wheel integrally formed on its right end face. The third eccentric wheel has an end shaft integrally formed on its right end face. The end shaft is inserted into the bearing seat at the right end. Each of the first, second, third, and fourth eccentric journal shafts has a screen connecting seat integrally formed facing upwards. Each screen connecting seat is connected to an independent screen.

[0006] In the above technical solution, during actual operation, the crankshaft drive device drives the crankshaft body to rotate via the end shaft. During this rotation, the eccentric components on the crankshaft body—including the first eccentric wheel, first eccentric journal, first eccentric connecting rod, second eccentric journal, second eccentric wheel, third eccentric journal, second eccentric connecting rod, fourth eccentric journal, and third eccentric wheel—convert the rotational motion into reciprocating linear motion of the screen connecting seat. The screen connecting seat transmits this reciprocating motion to the independent screens fixed to it, causing the solid waste to move periodically up and down in the vertical or inclined direction, thus achieving the sorting of solid waste on the screens. Furthermore, the intricate reciprocating vibration of the four independent screens enhances the complex disturbance to the solid waste on the screens, further improving sorting efficiency.

[0007] Preferably, the crankshaft drive device includes a drive motor, a reducer mounted on the output shaft of the drive motor, a drive pulley mounted on the output shaft of the reducer, and a driven pulley mounted on a coupling connected to the crankshaft body. The drive pulley and the driven pulley are connected by a transmission belt. In actual operation, the drive motor drives the drive pulley to rotate after being reduced in speed by the reducer. The drive pulley drives the driven pulley to rotate via the transmission belt, and the driven pulley drives the crankshaft body to rotate.

[0008] Preferably, a protective cover is installed on the outside of the transmission belt to enhance safety during transmission.

[0009] The beneficial effects of the eccentric drive structure of the sorting machine provided by this utility model are as follows: The eccentric drive structure of this sorting machine is ingeniously designed. During the rotation of the crankshaft body by the crankshaft drive device, the eccentric parts on the crankshaft body, such as the first eccentric wheel, the first eccentric journal, the first eccentric connecting rod, the second eccentric journal, the second eccentric wheel, the third eccentric journal, the second eccentric connecting rod, the fourth eccentric journal, and the third eccentric wheel, convert the rotational motion into the reciprocating linear motion of the screen connecting seat. The screen connecting seat transmits the reciprocating motion to the independent screens fixed on the screen connecting seat, which can make the four independent screens vibrate in an intricate and reciprocating manner, which will enhance the more intricate and complex disturbance to the solid waste on the screens, thereby further improving the sorting efficiency. Attached Figure Description

[0010] Figure 1 This is a top view of the assembly structure of the crankshaft drive device, screen and crankshaft assembly in this utility model.

[0011] Figure 2 This is a bottom view of the assembly structure of the crankshaft drive device, screen and crankshaft assembly in this utility model.

[0012] Figure 3 This is a schematic diagram of the assembly structure of the central shaft drive device and crankshaft assembly of this utility model.

[0013] Figure 4 This is a three-dimensional structural diagram of the crankshaft assembly in this utility model.

[0014] In the diagram: 1. Crankshaft drive unit; 11. Drive motor; 12. Reducer; 13. Drive pulley; 14. Transmission belt; 15. Protective cover; 16. Driven pulley; 2. Crankshaft assembly; 21. First eccentric wheel; 22. First eccentric journal; 23. First eccentric connecting rod; 24. Second eccentric journal; 25. Second eccentric wheel; 26. Third eccentric journal; 27. Second eccentric connecting rod; 28. Fourth eccentric journal; 29. ​​Third eccentric wheel; 210. Screen connecting seat; 211. End shaft; 212. Bearing seat; 3. Screen. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] Example: An eccentric drive structure for a sorting machine.

[0017] Reference Figure 1 and Figure 2 As shown, an eccentric drive structure for a sorting machine includes: two crankshaft assemblies 2 arranged in parallel and spaced apart; four independent screens 3 arranged in a transverse parallel arrangement are installed between the two crankshaft assemblies 2; and a crankshaft drive device 1 is installed on one side of the screens 3 and connected to one of the crankshaft assemblies 2.

[0018] Reference Figure 3 and Figure 4 As shown, the crankshaft assembly 2 includes two parallel and spaced bearing seats 212. The crankshaft body is installed between the two bearing seats 212. The crankshaft body includes a first eccentric wheel 21. An end shaft 211 is integrally provided on the left end face of the first eccentric wheel 21. The end shaft 211 is inserted into the left end bearing seat 212 and connected to the crankshaft drive device 1 through a coupling. A first eccentric journal 22 is integrally provided on the right end face of the first eccentric wheel 21. A first eccentric connecting rod 23 is integrally provided on the right end face of the first eccentric connecting rod 23. A second eccentric journal 24 is integrally provided on the right end face of the second eccentric journal 24. A second eccentric wheel 25 is integrally provided on the right end face of the second eccentric journal 24. The right end face of the second eccentric wheel 25 is integrally provided with a third eccentric journal shaft 26. The right end of the third eccentric journal shaft 26 is integrally provided with a second eccentric connecting rod 27. The right end face of the second eccentric connecting rod 27 is integrally provided with a fourth eccentric journal shaft 28. The right end face of the fourth eccentric journal shaft 28 is integrally provided with a third eccentric wheel 29. The right end face of the third eccentric wheel 29 is integrally provided with an end shaft 211. The end shaft 211 is inserted into the bearing seat 212 at the right end. The first eccentric journal shaft 22, the second eccentric journal shaft 24, the third eccentric journal shaft 26 and the fourth eccentric journal shaft 28 are all integrally provided with a screen connecting seat 210 facing upwards. Each screen connecting seat 210 is connected to an independent screen 3. In actual operation, the crankshaft drive device 1 drives the crankshaft body to rotate via the end shaft 211. During the actual rotation of the crankshaft body, the eccentric parts on the crankshaft body, including the first eccentric wheel 21, the first eccentric journal 22, the first eccentric connecting rod 23, the second eccentric journal 24, the second eccentric wheel 25, the third eccentric journal 26, the second eccentric connecting rod 27, the fourth eccentric journal 28, and the third eccentric wheel 29, convert the rotational motion into the reciprocating linear motion of the screen connecting seat 210. The screen connecting seat 210 transmits the reciprocating motion to the independent screens 3 fixed on it, causing the solid waste to move up and down periodically in the vertical or inclined direction, thereby achieving the sorting of solid waste on the screens 3. Furthermore, due to the intricate reciprocating vibration of the four independent screens 3, a more complex disturbance is generated on the solid waste on the screens 3, which further improves the sorting efficiency.

[0019] Reference Figure 3As shown, the crankshaft drive device 1 includes a drive motor 11, a reducer 12 mounted on the output shaft of the drive motor 11, a drive pulley 13 mounted on the output shaft of the reducer 12, and a driven pulley 16 mounted on a coupling connected to the crankshaft body. The drive pulley 13 and the driven pulley 16 are connected by a transmission belt 14. In actual operation, the drive motor 11 drives the drive pulley 13 to rotate after being reduced in speed by the reducer 12. The drive pulley 13 drives the driven pulley 16 to rotate via the transmission belt 14, and the driven pulley 16 drives the crankshaft body to rotate. A protective cover 15 is installed on the outside of the transmission belt 14 to enhance safety during transmission.

[0020] The eccentric drive structure of this sorting machine is ingeniously designed. During the rotation of the crankshaft body driven by the crankshaft drive device 1, the eccentric part on the crankshaft body converts the rotational motion into the reciprocating linear motion of the screen connecting seat 210. The screen connecting seat 210 transmits the reciprocating motion to the independent screens 3 fixed on the screen connecting seat 210, which can make the four independent screens 3 vibrate in an intricate manner. This will enhance the intricate disturbance to the solid waste on the screens 3, thereby further improving the sorting efficiency.

[0021] The above description is only a preferred embodiment of the present utility model. However, the present utility model should not be limited to the content disclosed in the embodiment and the accompanying drawings. Therefore, any equivalent or modified embodiments made without departing from the spirit disclosed in the present utility model shall fall within the protection scope of the present utility model.

Claims

1. An eccentric drive structure for a sorting machine, characterized in that... include: Two crankshaft assemblies are arranged in parallel and spaced apart. Four independent screens are installed between the two crankshaft assemblies, arranged side by side in a transverse direction. A crankshaft drive device is installed on one side of the screens and connected to one of the crankshaft assemblies. Each crankshaft assembly includes two bearing seats arranged in parallel and spaced apart. The crankshaft body is installed between the two bearing seats. The crankshaft body includes a first eccentric wheel. An end shaft is integrally formed on the left end face of the first eccentric wheel. The end shaft is inserted into the left end bearing seat and connected to the crankshaft drive device through a coupling. A first eccentric journal is integrally formed on the right end face of the first eccentric wheel. A first eccentric connecting rod is integrally formed on the right end face of the first eccentric journal. The device has a second eccentric journal shaft, a second eccentric wheel integrally formed on the right end face of the second eccentric journal shaft, a third eccentric journal shaft integrally formed on the right end face of the second eccentric wheel, a second eccentric connecting rod integrally formed on the right end of the third eccentric journal shaft, a fourth eccentric journal shaft integrally formed on the right end face of the second eccentric connecting rod, a third eccentric wheel integrally formed on the right end face of the fourth eccentric journal shaft, and an end shaft integrally formed on the right end face of the third eccentric wheel. The end shaft is inserted into a bearing seat at the right end. Each of the first, second, third, and fourth eccentric journal shafts has an integrally formed upward-facing screen connecting seat, and each screen connecting seat is connected to an independent screen.

2. The eccentric drive structure of the sorting machine according to claim 1, characterized in that: The crankshaft drive device includes a drive motor, a reducer is mounted on the output shaft of the drive motor, a drive pulley is mounted on the output shaft of the reducer, a driven pulley is mounted on a coupling connected to the crankshaft body, and the drive pulley and the driven pulley are connected by a transmission belt.

3. The eccentric drive structure of the sorting machine according to claim 2, characterized in that: A protective cover is installed on the outside of the transmission belt.

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