Electric capstan with clutch handle for clutch

Abstract

The invention provides an electric capstan with a clutch handle for clutching, a transmission part (12) is arranged between an input end (10) of a winding drum (3) and an output end (11) of an output side planetary gear set (9), and the input end (10) and the output end (11) are in clutch transmission connection through axial sliding sleeving of the transmission part (12); the transmission shaft (5) drives the transmission part (12) to axially slide so as to realize clutch operation; one end of the transmission shaft (5) is connected with a working end (17) of the transmission structure (13) through a through hole (24), the clutch handle (14) is connected with the transmission structure (13), the clutch handle (14) rotates to drive the working end (17) of the transmission structure (13) to move axially, and the working end (17) moves axially to push the transmission shaft (5) to move axially; the electric capstan is easy to clutch.

Description

Technical Field

[0001] This invention relates to the field of winch technology, specifically to an electric winch with a clutch handle for disengaging and engaging. Background Technology

[0002] Currently, electric winches that use a clutch handle for disengagement typically have a clutch handle positioned circumferentially on the planetary gearbox. For example, the electric winch disclosed in Chinese invention patent CN105621300B has a lever positioned circumferentially on the planetary gearbox, and disengagement is achieved by rotating the lever. However, there is a dead point when disengaging, making it difficult for the user to turn the lever (i.e., the clutch handle). Therefore, further research is needed.

[0003] In addition, existing electric winches require a lot of manual pulling force to release the traction rope after the clutch is disengaged, which is very laborious. Summary of the Invention

[0004] This invention provides an electric winch with a clutch handle for easy engagement and disengagement.

[0005] To achieve the above objectives, the embodiments of the present invention adopt the following technical solutions:

[0006] An electric winch with a clutch lever for disengaging and engaging the winch includes an electric motor, a bracket, a drum, and a planetary gear reducer. The electric motor and the planetary gear reducer are respectively mounted on opposite sides of the bracket. The drum is rotatably connected between the brackets. The electric motor and the planetary gear reducer are connected via a drive shaft that passes through the drum to the input-side planetary gear set of the planetary gear reducer and is connected to the input sun gear of the input-side planetary gear set. The input-side planetary gear set is located at the outer end of the planetary gear reducer. The planetary gear set on the side of the planetary gear reducer closest to the bracket is the output-side planetary gear set used to drive the drum to rotate. A transmission part is provided between the input end of the winch and the output end of the output-side planetary gear set. One end of this transmission part is axially slidably sleeved with the input end. The other end of the transmission part can be axially slidably sleeved with the output end. The input end and the output end are connected by the axially slidable sleeve of the transmission part to achieve a clutchable transmission connection. The transmission part is also sleeved on the transmission shaft. The transmission shaft and the transmission part can rotate relative to each other. When clutching is required, the transmission shaft drives the transmission part to slide axially to achieve the clutch operation. The transmission shaft is also axially slidably sleeved with the input sun gear and rotated for transmission connection. The outer end is provided with a through hole and a transmission structure. One end of the transmission shaft is connected to the working end of the transmission structure through the through hole. It also includes a clutch handle provided in the circumferential direction of the planetary gear reducer. The clutch handle is connected to the transmission structure. The rotation of the clutch handle drives the working end of the transmission structure to move axially. The axial movement of the working end drives the transmission shaft to move axially.

[0007] In some embodiments, the transmission structure includes a lever, the active end of which is connected to the clutch handle via a linkage mechanism, and the passive end of which is connected to one end of a transmission shaft.

[0008] In some embodiments, one end of the drive shaft extends out through a through hole to the outer end.

[0009] In some embodiments, one end of the drive shaft is detachably abutted to the driven end.

[0010] In some embodiments, a return spring is further included, which is sleeved on the drive shaft. Both ends of the return spring are axially limited, one of which is a retaining ring disposed on the drive shaft. Through the axial limitation of the retaining ring, the return spring axially resets the drive shaft. When the clutch handle is rotated in the disengagement direction, the clutch handle drives the driven end to axially push back the drive shaft through the linkage mechanism. The drive shaft drives the transmission part to separate from the output end to achieve the disengagement purpose. At the same time, the return spring is compressed and stores energy by the retaining ring. When the clutch handle is rotated in the engagement direction, the clutch handle drives the driven end to retract through the linkage mechanism to release the axial limitation on one end of the drive shaft. The drive shaft resets under the action of the return spring, and at the same time, the drive shaft drives the transmission part to reconnect with the output end to achieve the engagement purpose.

[0011] In some embodiments, a sealing ring is provided between the drive shaft and the through hole.

[0012] In some embodiments, the planetary gear reducer has a circumferentially rotating engagement hole, and the rotating shaft of the clutch handle is inserted into the rotating engagement hole for rotational engagement.

[0013] In some embodiments, the rotating mating hole is provided with a limiting rod, and the rotating shaft is provided with a limiting groove. The limiting rod and the limiting groove are connected in a mating connection. The limiting groove is fan-shaped. Under the limitation of the limiting rod, the clutch handle can be positioned in both the disengaged and engaged positions.

[0014] Compared with the prior art, the present invention has the following advantages after adopting the above structure:

[0015] In this disclosure, the clutch handle is rotated to drive the working end of the transmission structure to move axially. The axial movement of the working end drives the transmission shaft to move axially. The transmission shaft then drives the transmission part to slide axially to achieve the clutch operation. A transmission part is provided between the input end of the winch drum and the output end of the planetary gear set on the output side. The input end and the output end are connected by the axially sliding sleeve of the transmission part to achieve a clutchable transmission connection. Therefore, when disengaging, it is easy to rotate the clutch handle without any dead point. When it is necessary to engage, the clutch handle can be rotated in the opposite direction. The transmission part engages the input end and the output end. Furthermore, since the speed ratio between the input end and the output end is 1:1 and the speed difference between the input end and the output end is very small, it is easy for the transmission part to engage the input end and the output end. This engagement also does not have a dead point, and the clutch handle can easily be rotated in the opposite direction.

[0016] In addition, the drive shaft passes through the winch drum to reach the input planetary gear set of the planetary gear reducer, and is connected to the input sun gear of the input planetary gear set. That is, the drive shaft itself does not separate or engage, and the drive shaft and the input sun gear always maintain a transmission connection. Instead, a transmission part is added, and this transmission part is set between the input end of the winch drum and the output end of the output planetary gear set. Therefore, in the disengaged state, the transmission part will disconnect the transmission connection between the input end and the output end. When the winch drum rotates, it will not drive the planetary gear reducer to rotate, which makes it easier to release the traction rope. Attached Figure Description

[0017] Figure 1 A top view of an electric winch with a clutch handle for engaging and disengaging.

[0018] Figure 2 This is a sectional view along axis AA.

[0019] Figure 3 A three-dimensional schematic diagram of an electric winch with a clutch handle for disengaging and engaging the clutch.

[0020] Figure 4 In order to be in Figure 3 A three-dimensional diagram showing the structure after removing the top part of the protective cover.

[0021] Figure 5 In order to be in Figure 4 A three-dimensional diagram showing the clutch lever removed from the original design.

[0022] Figure 6 In order to be in Figure 5 A three-dimensional diagram showing the result after removing all protective covers.

[0023] Figure 7 A three-dimensional schematic diagram of an electric winch with a clutch handle, after removing the planetary gear reducer housing and protective cover.

[0024] Explanation of reference numerals in the attached drawings: 1-Electric motor, 2-Bracket, 3-Winding drum, 4-Planetary gear reducer, 5-Drive shaft, 6-Input side planetary gear set, 7-Input sun gear, 8-Outer end, 9-Output side planetary gear set, 10-Input end, 11-Output end, 12-Transmission part, 13-Transmission structure, 14-Clutch handle, 15-Reset spring, 16-Snap ring, 17-Working end, 18-Driving end, 19-Passive end, 20-Sealing ring, 21-Rotation mating hole, 22-Limit rod, 23-Limit groove, 24-Through hole, 25-Linkage mechanism, 26-Brake assembly, 27-Connecting sleeve, 28-Planetary carrier side plate, 29-Protective cover, 30-Rotating shaft. Detailed Implementation

[0025] The following description is intended to disclose the present invention and enable those skilled in the art to implement it. The embodiments described below are merely examples, and other obvious variations will arise for those skilled in the art. The basic principles of the invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0026] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting this invention.

[0027] like Figures 1 to 7As shown, this disclosure provides an electric winch with a clutch handle for disengaging and engaging, including an electric motor 1, a bracket 2, a winch drum 3, and a planetary gear reducer 4. The electric motor 1 and the planetary gear reducer 4 are respectively mounted on both sides of the bracket 2. The winch drum 3 is rotatably connected between the brackets 2. The electric motor 1 and the planetary gear reducer 4 are connected via a drive shaft 5. The drive shaft 5 passes through the winch drum 3 to the input-side planetary gear set 6 of the planetary gear reducer 4 and is connected to the input sun gear 7 of the input-side planetary gear set 6. The input-side planetary gear set 6 is located at the outer end 8 of the planetary gear reducer 4. The planetary gear set of the planetary gear reducer 4 near the bracket 2 is the output-side planetary gear set 9 for driving the winch drum 3 to rotate. A transmission part 12 is provided between the input end 10 of the winch drum 3 and the output end 11 of the output-side planetary gear set 9. One end of the transmission part 12 is axially slidably sleeved with the input end 10. The other end of 2 is axially slidably sleeved with the output end 11. The input end 10 and the output end 11 are axially slidably sleeved with the transmission part 12 to achieve a clutchable transmission connection. The transmission part 12 is also sleeved on the transmission shaft 5. The transmission shaft 5 and the transmission part 12 can rotate relative to each other. When clutching is required, the transmission shaft 5 drives the transmission part 12 to slide axially to achieve the clutch operation. The transmission shaft 5 is also axially slidably sleeved with the input sun gear 7 and rotates for transmission connection. The outer end 8 is provided with a through hole 24 and a transmission structure 13. One end of the transmission shaft 5 is connected to the working end 17 of the transmission structure 13 through the through hole 24. It also includes a clutch handle 14 provided in the circumferential direction of the planetary gear reducer 4. The clutch handle 14 is connected to the transmission structure 13. The rotation of the clutch handle 14 drives the working end 17 of the transmission structure 13 to move axially. The axial movement of the working end 17 drives the transmission shaft 5 to move axially.

[0028] like Figure 2 As shown, the winch drum 3 has a connecting sleeve 27 at one end located on the output side of the planetary gear set 9. The connecting sleeve 27 is axially slidably connected to the transmission part 12, and the connecting sleeve 27 serves as the input end 10.

[0029] The output side planetary gear set 9 has an output end 11 on the planetary carrier side plate 28 located on the side of the connecting sleeve 27. After being reduced in speed by the planetary gear reducer 4, the output side planetary gear set 9 is transmitted and output through the planetary carrier side plate 28.

[0030] The transmission part 12 is configured as a spline, and both the input end 10 and the output end 11 are axially slidably sleeved with the spline and rotatably connected for transmission. The transmission part 12 can also be other structures, such as a polygonal shaft.

[0031] In some embodiments, such as Figure 2 , 6As shown, the transmission structure 13 includes a lever. The driving end 18 of the lever is connected to the clutch handle 14 via a linkage mechanism 25. The driven end 19 of the lever is connected to one end of the transmission shaft 5, and the driven end 19 serves as the working end 17. The use of a lever has the advantages of a large span, simple structure, and durability.

[0032] The transmission structure 13 can also be other structures. Any transmission structure 13 that is applicable to this disclosure can be applied to this disclosure.

[0033] In some embodiments, such as Figure 2 , 6 As shown, one end of the drive shaft 5 extends out of the outer end 8 through the through hole 24. This simplifies the transmission structure 13.

[0034] In some embodiments, such as Figure 2 , 6 As shown, one end of the drive shaft 5 is detachably connected to the driven end 19. In this way, even if the drive part 12 and the output end 11 are not aligned, the driven end 19 can still be reset and is not restricted by the drive shaft 5, thus avoiding dead points.

[0035] In some embodiments, such as Figure 2 As shown, it also includes a return spring 15, which is sleeved on the drive shaft 5. The two ends of the return spring 15 are axially limited, one of which is a retaining ring 16 set on the drive shaft 5. Through the axial limitation of the retaining ring 16, the return spring 15 axially resets the drive shaft 5. When the clutch handle 14 is rotated in the disengagement direction, the clutch handle 14 drives the driven end 19 to axially push back the drive shaft 5 through the linkage mechanism 25. The drive shaft 5 drives the transmission part 12 to separate from the output end 11 to achieve the disengagement purpose. At the same time, the return spring 15 is compressed and stored by the retaining ring 16. When the clutch handle 14 is rotated in the engagement direction, the clutch handle 14 drives the driven end 19 to retract through the linkage mechanism 25 to release the axial limitation on one end of the drive shaft 5. The drive shaft 5 is reset under the action of the return spring 15. At the same time, the drive shaft 5 drives the transmission part 12 to reconnect with the output end 11 to achieve the engagement purpose.

[0036] In this way, the reset of the drive shaft 5 can be achieved by the reset spring 15. Therefore, when the drive unit 12 and the output end 11 are not aligned, the rotation of the winch drum 3 can adaptively restore the connection between the drive unit 12 and the output end 11 after alignment, without relying on the rotation of the clutch handle 14, thus improving the user experience. Since the speed ratio between the input end 10 and the output end 11 is 1:1, the rotation of the winch drum 3 can easily align the drive unit 12 and the output end 11, thereby improving the reliability of the reconnection.

[0037] Although the example given is a linkage mechanism 25, which adopts a crank-connecting rod mechanism design to convert rotational motion into translation, the clutch handle 14 can also be implemented through other transmission structures. Any transmission structure between the transmission structure 13 and the clutch handle 14 that is applicable to this disclosure can be applied to this disclosure.

[0038] To protect the transmission structure 13 and the linkage mechanism 25, such as Figure 3 As shown, it also includes a protective cover 29.

[0039] In some embodiments, such as Figure 2 As shown, it also includes a brake assembly 26, which can employ existing technology. The electric motor 1 transmits power to the drive shaft 5 via the brake assembly 26, thereby utilizing one end of the brake assembly 26 located on one side of the drive shaft 5 as one of the axial limits of the return spring 15.

[0040] To better resist dirt, such as Figure 2 As shown, a sealing ring 20 is provided between the drive shaft 5 and the through hole 24.

[0041] In some embodiments, such as Figure 6 , 7 As shown, the planetary gear reducer 4 has a rotating engagement hole 21 in the circumferential direction, and the rotating shaft 30 of the clutch handle 14 is inserted into the rotating engagement hole 21 for rotational engagement.

[0042] In some embodiments, such as Figure 5 , 6 As shown in Figure 7, the rotating mating hole 21 is provided with a limiting rod 22, and the rotating shaft 30 is provided with a limiting groove 23. The limiting rod 22 and the limiting groove 23 are connected in a mating manner. The limiting groove 23 is fan-shaped. Under the limitation of the limiting rod 22, the clutch handle 14 can be positioned in both the disengaged and engaged positions, thus facilitating user operation.

[0043] When understanding this invention, the above structure may be referred to other embodiments / appendices if necessary. Figure 1 And that is understood, so I will not elaborate further here.

[0044] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. An electric winch with a clutch handle for disengaging and engaging, comprising an electric motor (1), a bracket (2), a winch drum (3), and a planetary gear reducer (4), wherein the electric motor (1) and the planetary gear reducer (4) are respectively mounted on both sides of the bracket (2), the winch drum (3) is rotatably connected between the brackets (2), the electric motor (1) and the planetary gear reducer (4) are connected via a drive shaft (5), the drive shaft (5) passes through the winch drum (3) to the input-side planetary gear set (6) of the planetary gear reducer (4), and is drively connected to the input sun gear (7) of the input-side planetary gear set (6), the input-side planetary gear set (6) is located at the outer end (8) of the planetary gear reducer (4), and the planetary gear set of the planetary gear reducer (4) near the bracket (2) is the output-side planetary gear set (9) for driving the winch drum (3) to rotate, characterized in that, A transmission part (12) is provided between the input end (10) of the winch drum (3) and the output end (11) of the output planetary gear set (9). One end of the transmission part (12) is axially slidably sleeved with the input end (10), and the other end of the transmission part (12) is axially slidably sleeved with the output end (11). The input end (10) and the output end (11) are connected by the axially slidable sleeve of the transmission part (12) to achieve a disengageable transmission connection. The transmission part (12) is also sleeved on the transmission shaft (5). The transmission shaft (5) and the transmission part (12) can rotate relative to each other. When disengagement is required, the transmission shaft (5) drives the transmission part (12) to axially slide. The transmission shaft (5) is axially slidably connected to the input sun gear (7) and rotated for transmission. The outer end (8) is provided with a through hole (24) and a transmission structure (13). One end of the transmission shaft (5) is connected to the working end (17) of the transmission structure (13) through the through hole (24). The transmission shaft (5) also includes a clutch handle (14) in the circumferential direction of the planetary gear reducer (4). The clutch handle (14) is connected to the transmission structure (13). The clutch handle (14) rotates to drive the working end (17) of the transmission structure (13) to move axially. The working end (17) moves axially to push the transmission shaft (5) to move axially.

2. The electric winch for disengaging and engaging via a clutch handle according to claim 1, characterized in that, The transmission structure (13) includes a lever, the active end (18) of the lever is connected to the clutch handle (14) through a linkage mechanism (25), and the passive end (19) of the lever is connected to one end of the transmission shaft (5).

3. The electric winch for disengaging and engaging via a clutch handle according to claim 2, characterized in that, One end of the drive shaft (5) extends out of the outer end (8) through the through hole (24).

4. The electric winch for disengaging and engaging the clutch handle according to claim 2 or 3, characterized in that, One end of the drive shaft (5) is detachably abutted to the driven end (19).

5. The electric winch for disengaging and engaging via a clutch handle according to claim 4, characterized in that, It also includes a return spring (15), which is sleeved on the drive shaft (5). The two ends of the return spring (15) are axially limited, one of which is a retaining ring (16) set on the drive shaft (5). Through the axial limitation of the retaining ring (16), the return spring (15) axially resets the drive shaft (5). When the clutch handle (14) is rotated in the disengagement direction, the clutch handle (14) drives the driven end (19) to axially push back the drive shaft (5) through the linkage mechanism (25). (5) The transmission part (12) is separated from the output end (11) to achieve the separation purpose. At the same time, the return spring (15) is compressed and stored by the snap ring (16). When the clutch handle (14) rotates in the engagement direction, the clutch handle (14) drives the passive end (19) to retract through the linkage mechanism (25) to release the axial limit on one end of the transmission shaft (5). The transmission shaft (5) is reset under the action of the return spring (15). At the same time, the transmission shaft (5) drives the transmission part (12) and the output end (11) to reconnect to achieve the engagement purpose.

6. An electric winch for disengaging and engaging the clutch handle according to claim 1 or 3, characterized in that, A sealing ring (20) is provided between the drive shaft (5) and the through hole (24).

7. The electric winch for disengaging and engaging via a clutch handle according to claim 1, characterized in that, The planetary gear reducer (4) has a rotating fit hole (21) in the circumferential direction, and the rotating shaft (30) of the clutch handle (14) is inserted into the rotating fit hole (21) for rotational fit.

8. The electric winch for disengaging and engaging via a clutch handle according to claim 7, characterized in that, The rotating mating hole (21) is provided with a limiting rod (22), and the rotating shaft (30) is provided with a limiting groove (23). The limiting rod (22) and the limiting groove (23) are connected in a mating manner. The limiting groove (23) is fan-shaped. The clutch handle (14) can be positioned in two positions, separation position and engagement position, under the limitation of the limiting rod (22).

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