Overrunning clutch with resistance spring

Abstract

The utility model relates to an overrun clutch with a resistance spring. The technical problem to be solved by the utility model is to provide the overrun clutch with the resistance spring. According to the technical scheme, the main shaft comprises a main gear piece, a round pin roller, a driving sleeve, a driven gear piece, a bearing and a damping spring, the main gear piece comprises a main shaft body, a main shaft front boss, a main shaft driving part, a main shaft limiting boss and a main gear are sequentially arranged on the main shaft body, the main shaft driving part is of a regular polygon structure, and the main shaft front boss and the main shaft limiting boss are arranged on the main shaft body. The driving sleeve is provided with a main shaft driving surface in contact with the circular pin roller, the driving sleeve comprises a driving sleeve locking part and a driving sleeve butt joint part, and the driven gear piece is arranged on the driving sleeve butt joint part in a sleeving manner. The clutch has the advantages that impact and vibration generated in the clutch process can be absorbed due to the introduction of the damping spring, the impact between the pin roller and the driving sleeve is reduced, the stress fatigue of parts is reduced, the durability of the clutch is improved, and the overall action stability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of overrunning clutches, and particularly relates to an overrunning clutch with a resistance spring. Background Art

[0002] An overrunning clutch is an important component for power transmission and separation between a prime mover and a working machine or between a driving shaft and a driven shaft inside a machine. A roller overrunning clutch generally includes a main gear, a set of rollers, a driving sleeve and a driven gear. The rollers are limited on the main gear under the action of the driving sleeve, and the engagement and disengagement between the main gear and the driven gear are controlled according to the positions of the rollers. The existing roller overrunning clutches have the following problems in actual use: due to the frequent engagement and disengagement between the main gear and the driven gear, the internal rollers and the driving sleeve generate large impacts and vibrations due to rapid acceleration or deceleration, the transmission process has large crosstalk, poor stability, and the components are extremely vulnerable to wear, and the service life is short. Therefore, the existing overrunning clutch is improved and optimized. Summary of the Utility Model

[0003] To solve the above problems, the technical problem to be solved by the utility model is to provide an overrunning clutch with a resistance spring.

[0004] The technical solution adopted by the overrunning clutch with a resistance spring of the utility model is characterized in that it includes a main gear member, a circular roller, a driving sleeve, a driven gear member, a bearing and a damping spring. The main gear member includes a main shaft body, on which a main shaft front boss, a main shaft driving part, a main shaft limiting boss and a main gear are successively arranged. The main shaft driving part is of a regular polygon structure and is provided with a main shaft driving surface in contact with the circular roller. The driving sleeve includes a driving sleeve locking part and a driving sleeve docking part. The driven gear member is sleeved on the driving sleeve docking part. The driving sleeve is provided with a driving sleeve limiting groove for limiting the end of the main shaft driving part, and a driving sleeve inner hole for docking with the main shaft front boss is arranged in the driving sleeve limiting groove. The driving sleeve is provided with arc positioning grooves communicated with the driving sleeve inner hole and used for positioning when the circular roller moves at intervals around the driving sleeve inner hole. The driving sleeve locking part is provided with a locking groove;

[0005] The damping spring includes a U-shaped connecting part, and both ends of the U-shaped connecting part are bent and extended to successively form a damping spring clamping part and a damping spring elastic foot. The damping spring is provided with a damping spring docking port for easy clamping and a damping spring clamping port for locking on the locking groove.

[0006] It also includes a steel ball and a steel ball compression spring. A compression spring positioning groove for installing the steel ball compression spring is arranged on the side of the main gear, and a steel ball positioning groove for positioning the steel ball is arranged on the driving sleeve. One end of the steel ball compression spring abuts against the steel ball and the other end abuts against the side of the main gear.

[0007] The steel ball positioning groove is conical, and the number of both the steel balls and the steel ball compression springs is 2.

[0008] The main shaft driving part has a regular hexagon structure, and the number of the circular rollers is 6.

[0009] It further includes a bearing, a flat washer and an end sleeve. The driven gear part is provided with a bearing installation groove for installing the bearing and a driven gear sleeving hole for sleeving on the docking part of the driving sleeve. The main shaft body sequentially passes through the bearing and the flat washer and is then threadedly connected to the end sleeve.

[0010] The advantages of the overrunning clutch with a resistance spring of the present utility model are as follows: The introduction of the damping spring can absorb the impact and vibration generated during the clutch engagement process, reduce the impact between the roller and the driving sleeve, reduce the fatigue of the components under force, improve the durability of the clutch, and make the overall operation highly stable; the steel balls can be elastically pressed under the action of the steel ball compression springs, making the driving sleeve in a dynamically stable state, enabling the circular rollers to quickly return during the clutch engagement process, with a smoother return, and ensuring a quick switch between different states of the clutch. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0012] Figure 1 is an exploded view of the overrunning clutch with a resistance spring of the present utility model;

[0013] Figure 2 is a schematic structural diagram of the main gear part of the present utility model;

[0014] Figure 3 is a schematic front structural diagram of the driving sleeve of the present utility model;

[0015] Figure 4 is a schematic back structural diagram of the driving sleeve of the present utility model;

[0016] Figure 5 is a schematic structural diagram of the damping spring of the present utility model;

[0017] Figure 6 is a schematic structural diagram of the driven gear part of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] As Figures 1-6As shown in the figure, the overrunning clutch with a resistance spring according to the present utility model includes a main gear member 7, a circular roller 10, a drive sleeve 5, a driven gear member 3, a bearing 4, and a damping spring 6. The main gear member 7 includes a main shaft body 11. On the main shaft body 11, there are successively provided a main shaft front boss 12, a main shaft driving part 13, a main shaft limiting boss 14, and a main gear 15. The main shaft driving part 13 is of a regular polygon structure, and there is a main shaft driving surface 16 on it that contacts the circular roller 10. The drive sleeve 5 includes a drive sleeve locking part 17 and a drive sleeve docking part 18. The driven gear member 3 is sleeved on the drive sleeve docking part 18. Inside the drive sleeve 5, there is a drive sleeve limiting groove 20 for limiting the end of the main shaft driving part 13. Inside the drive sleeve limiting groove 20, there is a drive sleeve inner hole 21 that docks with the main shaft front boss 12. Around the drive sleeve inner hole 21 on the drive sleeve 5, there are arc positioning grooves 22 that are communicated with the drive sleeve inner hole 21 and are used for positioning when the circular roller 10 moves. On the drive sleeve locking part 17, there is a locking groove 23. The damping spring 6 includes a U-shaped connecting part 25. The two ends of the U-shaped connecting part 25 are bent and extended to successively form a damping spring clamping part 26 and a damping spring elastic leg 27. On the damping spring 6, there are a damping spring docking port 28 that is convenient for clamping and a damping spring clamping port 29 that is used for locking on the locking groove 23, which ensures the firm installation of the damping spring and prevents the damping spring from loosening due to frequent use. The introduction of the damping spring can absorb the impact and vibration generated during the clutch engagement process, reduce the impact between the roller and the drive sleeve, reduce the fatigue of the components under force, improve the durability of the clutch, and make the overall operation highly stable.

[0019] It further includes steel balls 8 and a steel ball compression spring 9. On the side of the main gear 15, there is a compression spring positioning groove 30 for installing the steel ball compression spring 9. On the drive sleeve 5, there is a steel ball positioning groove 31 for positioning the steel balls 8. One end of the steel ball compression spring 9 abuts against the steel balls 8 and the other end abuts against the side of the main gear 15. Under the action of the steel ball compression spring, the steel balls can maintain elastic compression, making the drive sleeve 5 in a dynamically stable state, enabling the circular roller to quickly return to its position during the clutch engagement process, with a smoother return, and ensuring a quick switch between different states of the clutch.

[0020] The steel ball positioning groove 31 is conical, and the number of both the steel balls 8 and the steel ball compression spring 9 is 2, ensuring accurate and reliable steel ball positioning.

[0021] The main shaft driving part 13 is of a regular hexagon structure, and the number of the circular rollers 10 is 6, making the transmission more stable, effectively avoiding excessive crosstalk, and maintaining the output accuracy.

[0022] It further includes a bearing 4, a flat washer 2 and an end sleeve 1. A bearing installation groove 34 for installing the bearing 4 and a driven gear sleeving hole 35 for sleeving on the driving sleeve docking portion 18 are provided inside the driven gear member 3. The main shaft body 11 sequentially passes through the bearing 4 and the flat washer 2 and is then threadedly connected to the end sleeve 1, making the structure of the overrunning clutch more compact and effectively improving the running stability and the overall transmission efficiency.

[0023] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are all included in the protection scope of the present invention.

Claims

1. An overrunning clutch with a resistance spring, characterized in that: It includes a main gear member (7), a circular roller (10), a drive sleeve (5), a driven gear member (3), a bearing (4) and a damping spring (6). The main gear member (7) includes a main shaft body (11). On the main shaft body (11), there are successively arranged a main shaft front boss (12), a main shaft driving part (13), a main shaft limiting boss (14) and a main gear (15). The main shaft driving part (13) is of a regular polygon structure, and there is a main shaft driving surface (16) on it that contacts the circular roller (10). The drive sleeve (5) includes a drive sleeve locking part (17) and a drive sleeve docking part (18). The driven gear member (3) is sleeved on the drive sleeve docking part (18). Inside the drive sleeve (5), there is a drive sleeve limiting groove (20) for limiting the end of the main shaft driving part (13). Inside the drive sleeve limiting groove (20), there is a drive sleeve inner hole (21) that docks with the main shaft front boss (12). Around the drive sleeve inner hole (21) on the drive sleeve (5), there are arc positioning grooves (22) that are communicated with the drive sleeve inner hole (21) and are used for positioning when the circular roller (10) moves. There is a locking groove (23) on the drive sleeve locking part (17); The damping spring (6) includes a U-shaped connecting part (25). The two ends of the U-shaped connecting part (25) are bent and extended to successively form a damping spring clamping part (26) and a damping spring elastic leg (27). There is a damping spring docking port (28) on the damping spring (6) that is convenient for clamping and a damping spring clamping mouth (29) for locking on the locking groove (23).

2. The overrunning clutch with a resistance spring according to claim 1, characterized in that: It also includes a steel ball (8) and a steel ball compression spring (9). There is a compression spring positioning groove (30) on the side of the main gear (15) for installing the steel ball compression spring (9). There is a steel ball positioning groove (31) on the drive sleeve (5) for positioning the steel ball (8). One end of the steel ball compression spring (9) abuts against the steel ball (8) and the other end abuts against the side of the main gear (15).

3. The overrunning clutch with a drag spring according to claim 2, characterized in that: The steel ball positioning groove (31) is conical, and the number of both the steel ball (8) and the steel ball compression spring (9) is 2.

4. The overrunning clutch with a resistance spring according to claim 1, characterized in that: The main shaft driving part (13) is of a regular hexagon structure, and the number of the circular rollers (10) is 6.

5. The overrunning clutch with a resistance spring according to claim 1, characterized in that: It also includes a bearing (4), a flat washer (2) and an end sleeve (1). Inside the driven gear member (3), there is a bearing installation groove (34) for installing the bearing (4) and a driven gear sleeving hole (35) for sleeving on the drive sleeve docking part (18). The main shaft body (11) passes through the bearing (4) and the flat washer (2) in sequence and is then threadedly connected to the end sleeve (1).

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