One-way clutch assembly

Abstract

A one-way clutch assembly proposed by the present invention includes a planetary gear shaft. A spline is provided on the outer wall of the planetary gear shaft close to the disc of the planetary gear shaft. An output shaft is sleeved on the planetary gear shaft. The inner wall of one end of the output shaft is engaged with the spline. A one-way clutch is sleeved on the outer wall of the end of the output shaft engaged with the spline. An inner ring lubrication device is provided on the surface of the end of the output shaft away from the one-way clutch. The inner ring lubrication device includes a plurality of plug mounting grooves, and each plug mounting groove is opened on the surface of one end of the output shaft. A retaining ring of the output shaft is movably sleeved and connected on the outer wall of one end of the planetary gear shaft. The present invention provides a one-way clutch assembly, which has the following beneficial effects: The lubricating grease can be added between the planetary gear shaft and the output shaft through the inner ring lubrication device, greatly reducing the difficulty of adding lubricating oil.

Description

Technical Field

[0001] The present invention relates to the technical field of overrunning clutches, and specifically to an overrunning clutch assembly. Background Art

[0002] When starting an automobile engine, the starter first drives the flywheel of the engine to rotate, and then the engine can start. However, after the engine ignites and starts, the rotational speed of its flywheel will quickly exceed that of the starter. To prevent the engine from driving the starter to rotate in the reverse direction, an overrunning clutch, also called an overrunning clutch, is provided between the engine and the starter. Therefore, after the rotational speed of the engine exceeds that of the starter, the overrunning clutch will be disengaged, thus preventing the engine from driving the starter to rotate. An overrunning clutch is also provided on electric vehicles. When an electric vehicle shifts from a high gear to a low gear, since the output shaft has just disengaged from the high-speed gear, the output shaft still has a relatively high rotational speed. Therefore, when the output shaft is connected to the low-speed gear, to make the output shaft and the low-speed gear have the same speed, the output shaft needs to have a decelerating process. Otherwise, the output shaft will drive the low-speed gear to rotate in the reverse direction, or the low-speed gear will experience gear clash, thereby impacting the gear and quickly damaging the gear. Therefore, an overrunning clutch is also provided on electric vehicles to prevent the output shaft from driving the low-speed gear in the reverse direction.

[0003] During the use of the overrunning clutch assembly, there is friction between the output shaft and the planetary gear shaft. To reduce the loss caused by friction, lubricating grease needs to be applied between the two shafts. Since the gap between the output shaft and the planetary gear shaft is small, it is difficult to apply lubricating grease into the gap. Therefore, we made improvements and proposed an overrunning clutch assembly. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides an overrunning clutch assembly, which solves the problem that there is friction between the current output shaft and the planetary gear shaft. To reduce the loss caused by friction, lubricating grease needs to be applied between the two shafts. Since the gap between the output shaft and the planetary gear shaft is small, it is difficult to apply lubricating grease into the gap.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: An overrunning clutch assembly includes a planetary gear shaft. A spline is provided on the outer wall of the planetary gear shaft close to the disk of the planetary gear. The planetary gear shaft is sleeved with an output shaft. A one-way clutch is sleeved on one end outer wall of the output shaft. The one-way clutch is installed on the planetary gear shaft. An inner ring lubrication device is provided on the surface of the end of the output shaft away from the one-way clutch. The inner ring lubrication device includes a plurality of plug mounting grooves, and each plug mounting groove is opened on the surface of one end of the output shaft. A retaining ring is movably sleeved and connected on the outer wall of one end of the planetary gear shaft.

[0006] The present invention provides an overrunning clutch assembly, which has the following beneficial effects: The inner ring lubrication device can add lubricating grease between the planetary gear shaft and the output shaft, greatly reducing the difficulty of adding lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0008] Figure 2 for the present invention Figure 1 is a schematic cross-sectional structure diagram taken along line A-A in the present invention;

[0009] Figure 3 is a schematic side view structure diagram of the output shaft of the present invention;

[0010] Figure 4 is a schematic left view structure diagram of the output shaft of the present invention;

[0011] Figure 5 for the present invention Figure 4 is a schematic cross-sectional structure diagram taken along line B-B in the present invention;

[0012] Figure 6 for the present invention Figure 5 is an enlarged structure diagram at position C in the present invention;

[0013] Figure 7 for the present invention Figure 6 is an enlarged structure diagram at position D in the present invention;

[0014] Figure 8 is a schematic structure diagram of the plug of the present invention;

[0015] Figure 9 is a schematic structure diagram of the rubber roller mounting housing of the present invention.

[0016] Wherein, 1. Planetary gear shaft; 2. Wire snap ring; 3. Retaining ring; 4. Overrunning clutch; 5. Planetary gear housing; 6. Iron gear ring; 7. Planetary gear; 8. Cage; 9. Special-shaped gasket; 10. Output shaft; 11. Spline groove; 12. Internal teeth; 13. Driving gear; 14. Inner ring lubrication device; 141. Plug; 142. Plug mounting groove; 143. Oil filling cavity; 144. Oil filling cavity sealing plate; 145. Inlet pipe connecting pipe; 146. Inlet pipe limiting boss; 147. Inlet pipe; 148. Inlet pipe guiding groove; 149. Oil inlet branch pipe; 1410. Rubber roller mounting housing; 1411. Rubber roller; 1412. Rubber roller mounting shaft; 1413. Groove; 1414. Sealing plate support spring. DETAILED DESCRIPTION OF THE INVENTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] As Figure 1 、 2 、shown in FIG. 3, the one-way clutch assembly provided by the embodiment of the present invention includes a planetary gear shaft 1. A spline 11 is provided on the outer wall of the planetary gear shaft 1 close to the disc of the planetary gear shaft 1. An output shaft 10 is sleeved on the planetary gear shaft 1. A one-way clutch 4 is sleeved on one end outer wall of the output shaft 10. The one-way clutch 4 is installed on the planetary gear shaft 1. An inner ring lubrication device 14 is provided on the surface of one end of the output shaft 10 far from the one-way clutch 4. The inner ring lubrication device 14 includes a plurality of plug mounting grooves 142, and each plug mounting groove 142 is opened on the surface of one end of the output shaft 10. A retaining ring 3 is movably sleeved and connected to one end outer wall of the planetary gear shaft 1. The retaining ring 3 is fixedly installed on the outer wall of the planetary gear shaft 1 through a wire snap ring 2.

[0019] As Figure 2 shown, a driving gear 13 is sleeved on the outer wall of the output shaft 10 far from the one-way clutch 4. The driving gear 13 is fixedly installed on the outer wall of the output shaft 10. By meshing the driving gear 13 with an external gear, power transmission can be completed.

[0020] As Figure 1 、 2 shown, a planetary gear housing 5 is fixedly installed at one end of the planetary gear shaft 1 far from the retaining ring 3. An iron gear ring 6 is installed inside the planetary gear housing 5. Inner teeth 12 are provided on the inner surface of the iron gear ring 6. A plurality of planetary gears 7 are provided inside the iron gear ring 6 on the inner side of the inner teeth 12. Each planetary gear 7 is rotatably installed inside the planetary gear housing 5 through a rotating shaft. Each planetary gear 7 is meshed with the inner teeth 12 provided on the inner side of the iron gear ring 6. When the planetary gears 7 rotate, the plurality of planetary gears 7 drive the externally meshed iron gear ring 6 to rotate. Since the plurality of planetary gears 7 are arranged inside the iron gear ring 6, the diameter of the planetary gears 7 is much smaller than the diameter of the iron gear ring 6. When transmitting power, the rotation speed of the planetary gear shaft 1 can be reduced and the torque of the planetary gear shaft 1 can be increased.

[0021] As Figure 1 、 2 shown, a cage 8 is fixedly installed on the surface of one end of the planetary gear housing 5 far from the one-way clutch 4. A special-shaped gasket 9 is fixedly installed on the cage 8.

[0022] AsFigure 6 As shown, a plug 141 is movably installed inside each of the plug mounting grooves 142. An oil filling cavity 143 is formed inside each of the plugs 141. An oil filling cavity sealing plate 144 is movably connected inside the oil filling cavity 143. A sealing ring is installed on the outer ring of the oil filling cavity sealing plate 144. By installing a sealing ring on the outer ring of the oil filling cavity sealing plate 144, it can contact the inner wall of the oil filling cavity 143, thereby enabling sealing, so that when the oil filling cavity sealing plate 144 moves, it can increase the pressure inside the oil filling cavity 143 like a piston;

[0023] A fuel inlet pipe connecting pipe 145 is provided at the center of the oil filling cavity sealing plate 144. An oil inlet pipe limiting boss 146 is fixedly installed on the inner wall of the fuel inlet pipe connecting pipe 145. The oil inlet pipe limiting boss 146 can seal the connection between the fuel inlet pipe connecting pipe 145 and the fuel inlet pipe 147.

[0024] As Figure 6 shown, an oil inlet pipe guiding groove 148 is provided at the center of one end surface of the plug 141. A sealing ring is installed on the inner ring of the oil inlet pipe guiding groove 148. The inside of the oil inlet pipe guiding groove 148 is communicated with the inside of the oil filling cavity 143. By installing a sealing ring on the inner ring of the oil inlet pipe guiding groove 148, the outer wall of the fuel inlet pipe 147 can be sealed.

[0025] As Figure 6 shown, an oil inlet pipe 147 is slidably installed inside the oil inlet pipe guiding groove 148. One end of the oil inlet pipe 147 slidably passes through the oil inlet pipe guiding groove 148 and is movably connected inside the fuel inlet pipe connecting pipe 145. The other end of the oil inlet pipe 147 is installed inside the outer wall of the output shaft 10. The other end of the oil inlet pipe 147 is in a closed state. Through the oil inlet pipe 147, lubricating grease can be input into the inside of the oil inlet branch pipe 149.

[0026] As Figure 6 、 7 、8, and 9 shown, a plurality of oil inlet branch pipes 149 are integrally provided on the outer wall of the other end of the oil inlet pipe 147. One end of each of the oil inlet branch pipes 149 is integrally formed with a rubber roller mounting housing 1410. The inside of one end of the oil inlet branch pipe 149 is communicated with the inside of the rubber roller mounting housing 1410. The inside of the other end of the oil inlet branch pipe 149 is communicated with the inside of the oil inlet pipe 147. By communicating one end of the oil inlet branch pipe 149 with the inside of the rubber roller mounting housing 1410, lubricating grease can be input into the inside of the rubber roller mounting housing 1410;

[0027] The rubber roller mounting housing 1410 is fixedly installed on the inner wall of the output shaft 10. A rubber roller 1411 is arranged inside the rubber roller mounting housing 1410. A plurality of grooves 1413 are formed on the outer wall of the rubber roller 1411. The rubber roller 1411 is rotationally installed inside the rubber roller mounting housing 1410 through a rubber roller mounting shaft 1412. By rotating the rubber roller 1411, the grooves 1413 can rotate and feed lubricating grease into the inside of the output shaft 10.

[0028] As Figure 6 , 7 , 8, and 9 show that a seal plate support spring 1414 is arranged inside the fuel filling cavity 143. One end of the seal plate support spring 1414 is fixedly installed on the inner wall of the fuel filling cavity 143. The other end of the seal plate support spring 1414 is fixedly installed on one side surface of the fuel filling cavity seal plate 144. The other end of the seal plate support spring 1414 is fixedly installed on one side surface of the fuel filling cavity seal plate 144 away from the fuel inlet pipe guide groove 148. Through the seal plate support spring 1414, one end of the fuel filling cavity seal plate 144 at the fuel inlet pipe guide groove 148 can be pushed.

[0029] Working principle:

[0030] During use, several planetary gears 7 are driven to move by an external gear, so that the several planetary gears 7 drive the outer meshed iron gear ring 6 to rotate. Since the several planetary gears 7 are arranged inside the inner ring of the iron gear ring 6, the diameter of the planetary gears 7 is much smaller than that of the iron gear ring 6. When transmitting power, the rotation speed of the planetary gear shaft 1 can be reduced and the torque of the planetary gear shaft 1 can be increased, so that the power output by the torque of the planetary gear shaft 1 is sufficient to drive the engine to operate. During the rotation of the planetary gear shaft 1, it is in fit connection with a one-way clutch 4 installed at one end of the output shaft 10 through a spline groove 11 formed on the outer wall, so that the power can be transmitted unidirectionally, and the one-way clutch 4 can drive the output shaft 10 to rotate. The driving gear 13 installed at the other end of the output shaft 10 can transmit driving force to the outside.

[0031] When applying lubricating oil, the plug 141 is removed by rotating a tool, so that the fuel inlet pipe 147 is moved out of the inside of the fuel filling chamber 143, and the pressure in contact with the fuel filling chamber sealing plate 144 disappears. The elasticity of the sealing plate support spring 1414 can push the fuel filling chamber sealing plate 144 to move towards one end of the fuel inlet pipe guide groove 148. At this time, the solidified lubricating grease is put into the inside of the fuel filling chamber 143, the fuel inlet pipe guide groove opened at one end of the plug 141 is aligned with the fuel inlet pipe 147, and the plug 141 is rotated and screwed into the inside of the plug mounting groove 142. As the plug 141 rotates and moves, one end of the fuel inlet pipe 147 is connected to the inside of the fuel inlet pipe connecting pipe 145 and contacts the fuel inlet pipe limiting boss 146, so as to limit and seal one end of the fuel inlet pipe 147. As the plug 141 moves into the inside of the plug mounting groove 142, one end of the fuel inlet pipe 147 gradually moves into the inside of the fuel filling chamber 143. One end of the fuel inlet pipe 147 pushes the fuel filling chamber sealing plate 144 to gradually move, so as to squeeze the grease inside the fuel filling chamber 143, so that the grease enters the inside of the fuel inlet pipe 147 through the inside of the fuel inlet pipe connecting pipe 145, and enters the inside of a number of fuel inlet branch pipes 149 through the fuel inlet pipe 147, and enters the inside of the rubber roller mounting housing 1410 through the fuel inlet branch pipes 149. By installing the plug 141, the lubricating grease can be added between the planetary gear shaft 1 and the output shaft 10, greatly reducing the difficulty of adding lubricating oil and facilitating the use by the staff.

[0032] When either the planetary gear shaft 1 or the output shaft 10 rotates, the surfaces of a number of rubber rollers 1411 contact the surface of the planetary gear shaft 1, so that a number of rubber rollers 1411 rotate simultaneously, and a number of grooves 1413 provided on the outer wall of the rubber rollers 1411 can rotate the lubricating grease inside the rubber roller mounting housing 1410 into the gap between the planetary gear shaft 1 and the output shaft 10, so that the equipment can automatically complete the lubricating grease coating work during use.

[0033] When applying lubricating oil, the plug 141 is removed by rotating a tool, so that the fuel inlet pipe is moved out of the inside of the fuel filling chamber, and the pressure in contact with the fuel filling chamber sealing plate disappears. The elasticity of the sealing plate support spring can push the fuel filling chamber sealing plate to move towards one end of the fuel inlet pipe guide groove. At this time, the solidified lubricating grease is put into the inside of the fuel filling chamber, the fuel inlet pipe guide groove opened at one end of the plug is aligned with the fuel inlet pipe, and the screw is rotated and screwed into the inside of the plug mounting groove. As the screw rotates and moves, one end of the fuel inlet pipe is connected to the inside of the fuel inlet pipe connecting pipe and contacts the fuel inlet pipe limiting boss, so as to limit and seal one end of the fuel inlet pipe.

[0034] As the plug moves towards the inside of the plug installation groove, one end of the fuel inlet pipe gradually moves towards the inside of the fuel filling cavity. By pushing the fuel filling cavity sealing plate to gradually move with one end of the fuel inlet pipe, the grease inside the fuel filling cavity is squeezed, so that the grease enters the inside of the fuel inlet pipe through the inside of the fuel inlet pipe connecting pipe, and enters the inside of several fuel inlet branch pipes through the fuel inlet pipe, and enters the inside of the rubber roller installation housing through the fuel inlet branch pipes. The plug and the plug installation groove are connected by a threaded connection, which can add lubricating grease between the planetary gear shaft and the output shaft, greatly reducing the difficulty of adding lubricating oil and facilitating the use by the staff.

Claims

1. One-way clutch assembly, including a planetary gear shaft (1), characterized in that: On the outer wall of the planetary gear shaft (1), there is a spline (11) near the disc of the planetary gear shaft (1). The planetary gear shaft (1) is sleeved with an output shaft (10). One end of the outer wall of the output shaft (10) is sleeved with a one-way clutch (4). The one-way clutch (4) is installed on the planetary gear shaft (1). On the surface of the end of the output shaft (10) far from the one-way clutch (4), there is an inner ring lubrication device (14). The inner ring lubrication device (14) includes a number of plug mounting grooves (142). Each of the plug mounting grooves (142) is opened on the surface of one end of the output shaft (10). A retaining ring (3) is movably sleeved and connected to the outer wall of one end of the planetary gear shaft (1). A plug (141) is movably installed in each of the plug mounting grooves (142). An oil filling cavity (143) is opened in each of the plugs (141). An oil filling cavity sealing plate (144) is movably connected inside the oil filling cavity (143). An outer ring of the oil filling cavity sealing plate (144) is installed with a sealing ring; At the center of the oil filling cavity sealing plate (144), there is an oil inlet pipe connecting pipe (145). An oil inlet pipe limiting boss (146) is fixedly installed on the inner wall of the oil inlet pipe connecting pipe (145). At the center of the surface of one end of the plug (141), there is an oil inlet pipe guiding groove (148). An inner ring of the oil inlet pipe guiding groove (148) is installed with a sealing ring. The inside of the oil inlet pipe guiding groove (148) is communicated with the inside of the oil filling cavity (143). An oil inlet pipe (147) is slidably installed inside the oil inlet pipe guiding groove (148). One end of the oil inlet pipe (147) slidably passes through the oil inlet pipe guiding groove (148) and is movably connected inside the oil inlet pipe connecting pipe (145). The other end of the oil inlet pipe (147) is installed inside the outer wall of the output shaft (10). The other end of the oil inlet pipe (147) is in a closed state.

2. The one-way clutch assembly according to claim 1, wherein: On the outer wall of the output shaft (10) far from the one-way clutch (4), there is a driving gear (13) sleeved. The driving gear (13) is fixedly installed on the outer wall of the output shaft (10).

3. The one-way clutch assembly according to claim 1, wherein: On the end of the planetary gear shaft (1) far from the retaining ring (3), a planetary gear housing (5) is fixedly installed. An iron gear ring (6) is installed inside the planetary gear housing (5). Inner teeth (12) are arranged on the inner surface of the iron gear ring (6). A number of planetary gears (7) are arranged inside the iron gear ring (6) on the inner side of the inner teeth (12).

4. The one-way clutch assembly according to claim 3, wherein: Each of the planetary gears (7) is rotatably installed inside the planetary gear housing (5) through a rotating shaft. Each of the planetary gears (7) is meshed and connected with the inner teeth (12) arranged on the inner side of the iron gear ring (6).

5. The one-way clutch assembly according to claim 3, wherein: On the surface of the end of the planetary gear housing (5) far from the one-way clutch (4), a cage (8) is fixedly installed. A special-shaped gasket (9) is fixedly installed on the cage (8).

6. The one-way clutch assembly according to claim 1, wherein: On the outer wall of the other end of the fuel inlet pipe (147), a number of fuel inlet branch pipes (149) are integrally provided. One end of each fuel inlet branch pipe (149) is integrally formed with a rubber roller mounting housing (1410). The interior of one end of the fuel inlet branch pipe (149) communicates with the interior of the rubber roller mounting housing (1410), and the interior of the other end of the fuel inlet branch pipe (149) communicates with the interior of the fuel inlet pipe (147). The rubber roller mounting housing (1410) is fixedly installed on the inner wall of the output shaft (10). A rubber roller (1411) is provided inside the rubber roller mounting housing (1410). The rubber roller (1411) is rotatably installed inside the rubber roller mounting housing (1410) through a rubber roller mounting shaft (1412). A number of grooves (1413) are formed on the outer wall of the rubber roller (1411).

7. The one-way clutch assembly according to claim 1, characterized in that: A sealing plate support spring (1414) is provided inside the fuel filling chamber (143). One end of the sealing plate support spring (1414) is fixedly installed on the inner wall of the fuel filling chamber (143), and the other end of the sealing plate support spring (1414) is fixedly installed on one side surface of the fuel filling chamber sealing plate (144). The other end of the sealing plate support spring (1414) is fixedly installed on the side surface of the fuel filling chamber sealing plate (144) away from the fuel inlet pipe guide groove (148).

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