Oblique finger friction wheel transmission power device

Abstract

The present invention discloses an oblique-finger friction wheel transmission power device, wherein an input shaft is connected to the rear end of the left and right housings, an oblique-finger friction wheel is connected to the right end of the input shaft, and a small gear is connected to the middle of the input shaft. An intermediate shaft is connected to the middle of the left and right housings, a large gear and a small sprocket with a shoulder are connected to the intermediate shaft, and the large gear is connected to the small gear. An output shaft is connected to the front of the left and right housings, a large sprocket is connected to the middle of the output shaft, the large sprocket is connected to the small sprocket with a shoulder through a chain, and left and right bearing seat supports are connected to the right end of the output shaft. This device adopts an oblique-finger friction wheel to contact the rubber tire of agricultural machinery, utilizes friction transmission to generate power, and after two-stage transmission, transmits the power to the machinery to perform related production operations. It is a new type of transmission power source, which can not only simplify mechanical transmission, but also save energy, and also provide a basic guarantee for the automation of agricultural machinery, and has a wide range of promotion and application value.

Description

Technical Field

[0001] The present invention relates to a power device, in particular to an oblique finger type friction wheel transmission power device, belonging to the technical field of agricultural machinery industry. Background Art

[0002] With the development of agriculture, various agricultural machinery has developed rapidly. The power for agricultural machinery operations is generally supplied by the power output of the tractor. Some also have their own power devices, but the third way of providing power is still rare, especially the power devices that rely on the agricultural machinery itself to move through the tires to provide friction and thus provide power. Summary of the Invention

[0003] The present invention aims to provide a slanted-finger friction wheel transmission power device that provides power for traction or suspension of machinery using the ground wheels. Through repeated experiments and research, a slanted-finger friction wheel was designed. This slanted-finger friction wheel contacts the rubber tire of agricultural machinery through the device's own weight and spring tension. During rotation, the rubber tire tightly engages the slanted-finger friction wheel. Using friction, the device outputs power to drive related components of the agricultural machinery. This not only simplifies mechanical transmission and saves energy, but more importantly, facilitates the automation of agricultural machinery. The slanted-finger friction wheel ensures reliable engagement and good friction. During rotation, it automatically removes weeds and dirt carried by the tire, ensuring reliable transmission of the machinery. Furthermore, the device utilizes a primary gear drive and a primary sprocket drive, ensuring reliable and stable transmission. The device is fixed to a frame and, through manipulation, the frame is raised and lowered, allowing the friction wheel to be separated and engaged with the ground wheel while the machinery is in transport or operation. Switching is extremely simple and convenient, providing a reliable power source for agricultural machinery without the need for additional auxiliary equipment.

[0004] The technical solution adopted by the present invention to solve the technical problem is: an oblique finger friction wheel transmission power device, which comprises a left housing, a right housing, an oblique finger friction wheel, a fixing screw with a washer, a circlip A, a circlip B, a bearing cap A, a small gear, a bearing cap B, an input shaft, a threaded linkage rod, a bearing cap C, a circlip C, a large gear, a small sprocket with a shoulder, an intermediate shaft, a chain, a large sprocket, a circlip D, an output shaft, a bearing cap D, a left bearing seat support, a right bearing seat support, a circlip E, a chain expansion pulley, an expansion pulley shaft, an expansion pulley rotating plate, a threaded column, a fastening nut, a connecting bolt A, and a connecting bolt B. The left and right housings are connected by connecting bolt A. The input shaft is connected to the rear end of the left housing via its bearing hole, bearing, and bearing cap B; the rear end of the right housing via its bearing hole, bearing, retaining ring B, and bearing cap A. A beveled friction wheel is connected to the right end of the input shaft via retaining ring A, a set screw with a washer, and a flat key. A pinion is connected to the center of the input shaft via two retaining rings B and a flat key. An intermediate shaft is connected to the center of the left and right housings via their respective holes, bearings, and two bearing caps C. A large gear and a small sprocket with a shoulder are connected in sequence to the intermediate shaft via two retaining rings C and two flat keys. The large gear is connected to the small gear. The output shaft is connected to the front of the left and right housings via their respective holes, bearings, and two bearing caps D. A large sprocket is connected to the center of the output shaft via two retaining rings D. The large sprocket is connected to the small sprocket with a shoulder via a chain. The left bearing support, bearing, and right bearing support are connected to the shoulder of the right end of the output shaft via retaining ring E. The left and right bearing support are connected via connecting bolts B. A pulley rotating plate is connected to the through-hole in the lower center of the left housing via a threaded post and a fastening nut. A chain pulley is connected to the pulley rotating plate via a pulley shaft, and the chain pulley is connected to the chain. A threaded linkage rod is connected to the threaded hole at the left end of the input shaft via bearing cap B. The left end of the threaded post features a hexagon socket. The left end of the output shaft features an external hexagonal head. A spring hole is located on the upper and lower rear surfaces of both the left and right housings, corresponding to each other.

[0005] The beneficial effects of the present invention are as follows: the device adopts an oblique finger friction wheel to contact the rubber tire of the agricultural machinery, and uses friction transmission to generate power. It is a new type of transmission power source. The tooth shape design of the oblique finger friction wheel ensures sufficient friction. It can automatically remove weeds and soil brought by the tire during rotation, ensuring the reliability of the transmission. The device adopts a first-stage gear transmission and a first-stage sprocket transmission. After two-stage transmission, the power is transmitted to the machinery for related production operations, which can ensure the reliability and stability of the transmission. The friction wheel and the ground wheel tire can be fitted and separated by controlling the rise and fall of the frame. The switching is simple and convenient, which can not only simplify the mechanical transmission, but also save energy, provide a reliable power source for agricultural machinery operations, and also provide a basic guarantee for the automation of agricultural machinery. It has wide promotion and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0007] Figure 1 It is a structural schematic diagram of the oblique finger friction wheel transmission power device of the present invention.

[0008] Figure 2 It is a schematic cross-sectional structural diagram of the present invention.

[0009] Figure 3 It is a schematic structural diagram of the right side of the present invention.

[0010] Figure 4 It is a left side structural schematic diagram of the present invention.

[0011] Figure 5 It is a schematic diagram of the non-working state of the present invention.

[0012] Figure 6 It is a schematic diagram of the working state of the present invention.

[0013] Reference numerals

[0014] 1. Left housing 2. Right housing 3. Oblique finger friction wheel 4. Set screw with washer 5. Circlip A 6. Circlip B 7. Bearing cap A 8. Pinion 9. Bearing cap B 10. Input shaft 11. Threaded linkage rod 12. Bearing cap C 13. Circlip C 14. Large gear 15. Small sprocket with shoulder 16. Intermediate shaft 17. Chain 18. Large sprocket 19. Circlip D 20. Output shaft 21. Bearing cap D 22. Left bearing seat support 23. Right bearing seat support 24. Circlip E 25. Chain tensioner 26. Tensioner shaft 27. Tensioner rotating plate 28. Threaded column 29. Fastening nut 30. Connecting bolt A 31. Connecting bolt B 32. Hexagon socket 33. Hexagonal shaft head 34. Spring hole 40. Tension spring 41. Fixed seat DETAILED DESCRIPTION

[0015] See also Figures 1 to 4The oblique-finger friction wheel transmission power unit consists of a left housing, a right housing, an oblique-finger friction wheel, a set screw with a washer, a circlip A, a circlip B, a bearing cap A, a pinion, a bearing cap B, an input shaft, a threaded linkage rod, a bearing cap C, a circlip C, a large gear, a small sprocket with a shoulder, an intermediate shaft, a chain, a large sprocket, a circlip D, an output shaft, a bearing cap D 21, a left bearing seat support 22, a right bearing seat support 23, a circlip E 24, a chain expansion pulley 25, an expansion pulley shaft 26, an expansion pulley rotating plate 27, a threaded column 28, a fastening nut 29, a connecting bolt A 30, and a connecting bolt B 31. The left housing 1 and the right housing 2 are connected by connecting bolts A 30. Input shaft 10 is connected to the rear end of left housing 1 via its bearing hole, bearing, and bearing cap B9; and to the rear end of right housing 2 via its bearing hole, bearing, retaining ring B6, and bearing cap A7. The right end of input shaft 10 is connected to an oblique-finger friction wheel 3 via retaining ring A5, a set screw 4 with a washer, and a flat key. Pinion 8 is connected to the center of input shaft 10 via two retaining rings B6 and a flat key. An intermediate shaft 16 is connected to the center of left and right housings 1 and 2, respectively, via their respective holes, bearings, and two bearing caps C12. A large gear 14 and a small sprocket with a shoulder 15 are connected in sequence to the center of intermediate shaft 16 via two retaining rings C13 and two flat keys. Large gear 14 is connected to pinion 8. The output shaft 20 is connected to the front of the left and right housings 1 and 2, respectively, through their respective holes, bearings, and two bearing caps D 21. A large sprocket 18 is connected to the center of the output shaft 20 via two retaining springs D 19. The large sprocket 18 is connected to the small shouldered sprocket 15 via a chain 17. The left bearing support 22, the bearing, and the right bearing support 23 are connected to the shoulder at the right end of the output shaft 20 via retaining springs E 24. The left and right bearing support 22 and 23 are connected via connecting bolts B 31. A pulley rotating plate 27 is connected to the pulley rotating plate 27 via a threaded post 28 and a fastening nut 29. A chain pulley 25 is connected to the pulley rotating plate 27 via a pulley shaft 26. The chain pulley 25 is connected to the chain 17. A threaded linkage rod 11 is connected to the threaded hole at the left end of the input shaft 10 via a bearing cap B 9. The left end of the threaded column 28 is provided with an inner hexagonal 32. The left end of the output shaft 20 is an outer hexagonal shaft head 33. A spring hole 34 is provided correspondingly up and down at the back of the left housing 1 and the right housing 2.

[0016] Structural principle, characteristics and transmission method: please refer to Figure 5 、 Figure 6The tooth profile of the oblique-finger friction wheel 3 is designed to resemble an inclined finger, with an arc-shaped tooth tip and the same width as the tooth root, resembling a finger shape. The tilt direction is opposite to the direction of rotation. Through repeated testing, this tooth profile has been found to maximize friction, strength, and prevent slippage during friction transmission, as the friction force is directed toward the tooth tip, i.e., obliquely inward and rearward of the tire. This makes it an excellent friction pair, capable of transmitting sufficient loads under the action of gravity and the assistance of tension spring 40. The oblique-finger friction wheel 3 is located on the right side of the device. The shaft to which it is connected is the input shaft 10, which transmits power to the intermediate shaft 16 through a pair of gear pairs. This is then transmitted through a pair of sprockets to the output shaft 20 with an external hexagonal shaft head 33. The external hexagonal shaft head 33 outputs power to the working part of the machine. The device itself utilizes a gear and sprocket transmission, making the structure both compact and safe and reliable. The tension of the chain 17 is adjusted using the hexagon socket 32 ​​on the threaded post 28. First, secure the threaded post 28 with the socket 32, then loosen the fastening nut 29. The socket 32 ​​then rotates the tensioner plate 27, which is fixed to the threaded post 28. This, in turn, rotates the chain tensioner 25 via the rotating tensioner shaft 26 fixed to the tensioner plate 27, adjusting the tension of the chain 17. Once the tension is adjusted, tighten the fastening nut 29. The left and right bearing support 22 and 23 are connected by bolts B 31 and secured to the frame through the connection holes below. A fixing base 41 is attached to the frame, to which a tension spring 40 is connected. The other end of the tension spring 40 is connected to the spring holes 34 in the left and right housings 1 and 2 of the device. When the device contacts the tire, the tension spring 40 stretches, generating a certain amount of tension, increasing friction and ensuring better operation. A threaded linkage rod 11 is connected to the threaded hole at the left end of the device's input shaft 10 through a bearing cap B9. This linkage rod 11 automatically controls the device's state. Before the machine stops operating, the frame must first be raised. As the frame rises to a certain height, the linkage rod 11 drives the frame to lift the device, allowing the oblique finger friction wheel 3 to clear the ground tire and stop operating. During operation, the device descends along with the frame. When the frame descends to a certain height, the oblique finger friction wheel 3 falls onto the ground tire, and the frame continues to descend, allowing the linkage rod 11 to clear the frame without affecting the device's operation, and the device begins operating. At the left end of the output shaft 20 is an external hexagonal shaft head 33, which is connected to the machine's power input through the external hexagonal shaft head 33 to output power to the machine.

Claims

1. An oblique-finger friction wheel transmission power device, comprising a left housing, a right housing, an oblique-finger friction wheel, a fixing screw with a washer, a circlip A, a circlip B, a bearing cover A, a small gear, a bearing cover B, an input shaft, a threaded linkage rod, a bearing cover C, a circlip C, a large gear, a small sprocket with a shoulder, an intermediate shaft, a chain, a large sprocket, a circlip D, an output shaft, a bearing cover D, a left bearing seat support, a right bearing seat support, a circlip E, a chain expansion pulley, an expansion pulley shaft, an expansion pulley rotating plate, a bolt column, a fastening nut, a connecting bolt A, and a connecting bolt B, and characterized by: The left housing (1) and the right housing (2) are connected by connecting bolts A (30); an input shaft (10) is connected to the rear end of the left housing (1) through its bearing hole, bearing, bearing cover B (9); and the rear end of the right housing (2) through its bearing hole, bearing, retaining spring B (6), and bearing cover A (7); and an oblique finger friction wheel (3) is connected to the right end of the input shaft (10) through retaining spring A (5), a fixing screw with a washer (4), and a flat key; the oblique finger friction wheel (3) contacts the tire of the agricultural machinery and utilizes friction to extract the tire from the agricultural machinery. The tire of the machine obtains power; the tooth shape of the oblique finger friction wheel (3) is designed to be inclined finger-shaped, the tooth tip is arc-shaped, the tooth tip and the tooth root are the same width, similar to the finger shape, and the tilt direction is opposite to the rotation direction; the middle of the input shaft (10) is connected to the small gear (8) through two retaining springs B (6) and a flat key; the middle of the left housing (1) and the right housing (2) are connected to the intermediate shaft (16) through their holes and bearings and two bearing caps C (12), and the middle of the intermediate shaft (16) is connected through two retaining springs C (13), two flat keys. The key is connected in sequence with a large gear (14) and a small sprocket with a shoulder (15), and the large gear (14) is connected to the small gear (8); the front of the left housing (1) and the right housing (2) are connected to the output shaft (20) through their holes and bearings and two bearing caps D (21), and the middle of the output shaft (20) is connected to a large sprocket (18) through two retaining springs D (19), and the large sprocket (18) is connected to the small sprocket with a shoulder (15) through a chain (17), and a retaining spring E is connected to the shoulder of the right end of the output shaft (20). (24) is connected in sequence with a left belt bearing seat support (22), a bearing, and a right belt bearing seat support (23), and the left belt bearing seat support (22) and the right belt bearing seat support (23) are connected by a connecting bolt B (31); a pulley rotating plate (27) is connected to the through hole provided at the lower middle part of the left housing (1) through a bolt column (28) and a fastening nut (29), and a chain pulley (25) is connected to the pulley rotating plate (27) through a pulley shaft (26), and the chain pulley (25) is connected to the chain (17).

2. The oblique finger friction wheel transmission power device according to claim 1, characterized in that: A threaded linkage rod (11) is connected to the threaded hole at the left end of the input shaft (10) through a bearing cover B (9).

3. The oblique finger friction wheel transmission power device according to claim 1, characterized in that: A hexagon socket (32) is provided at the left end of the bolt column (28).

4. The oblique finger friction wheel transmission power device according to claim 1, characterized in that: The left end of the output shaft (20) is an outer hexagonal shaft head (33).

5. The oblique finger friction wheel transmission power device according to claim 1, characterized in that: A spring hole (34) is provided on the upper and lower rear sides of the left housing (1) and the right housing (2), respectively.

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