Electric capstan with clutch handle for clutch

Abstract

The utility model 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] The utility model relates to the technical field of winches, and particularly to an electric winch with a clutch handle for engaging and disengaging. Background Art

[0002] At present, for an electric winch with a clutch handle for engaging and disengaging, a common structure is to arrange the clutch handle circumferentially on the planetary gearbox of the electric winch. For example, the electric winch disclosed in the Chinese invention patent with the authorization announcement number CN105621300B arranges a dial on the circumference of the planetary gearbox, and realizes the purpose of engaging and disengaging by rotating the dial. However, there is an easy dead point during engaging and disengaging, and the user cannot move the dial (i.e., the clutch handle), so further research is needed.

[0003] In addition, for the existing electric winch, after the clutch is disengaged, a very large manual pulling force is required to pull out the towing rope when releasing it, which is very laborious. Summary of the Utility Model

[0004] The utility model provides an electric winch with a clutch handle for engaging and disengaging, and the engaging and disengaging is relatively easy.

[0005] To achieve the above object, the embodiments of the utility model adopt the following technical solutions:

[0006] An electric winch with a clutch handle for engaging and disengaging, comprising an electric motor, a bracket, a winch drum and a planetary gear reducer. The electric motor and the planetary gear reducer are respectively installed on both sides of the bracket. The winch drum is rotatably connected between the brackets. The electric motor and the planetary gear reducer are connected by a transmission shaft. The transmission shaft passes through the winch drum to reach the input side planetary gear set of the planetary gear reducer and is in transmission connection with 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 close to the bracket is an output side planetary gear set for driving the winch drum to rotate. A transmission part is arranged between the input end of the winch drum and the output end of the output side planetary gear set. One end of the transmission part is axially slidably sleeved with the input end, and the other end of the transmission part is axially slidably sleeved with the output end. The input end and the output end are axially slidably sleeved through the transmission part to achieve axially separable transmission connection; the transmission part is also sleeved on the transmission shaft, and the transmission shaft and the transmission part can rotate relative to each other. When engaging and disengaging is required, the transmission shaft drives the transmission part to axially slide to achieve the engaging and disengaging operation; the transmission shaft is also axially slidably sleeved and rotationally connected with the input sun gear, and a through hole and a transmission structure are arranged at the outer end. One end of the transmission shaft is connected with the working end of the transmission structure through the through hole. The clutch handle is also included, which is arranged circumferentially on the planetary gear reducer. The clutch handle is connected with the transmission structure. The rotation of the clutch handle drives the working end of the transmission structure to axially move, and the axial movement of the working end pushes the transmission shaft to axially move.

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

[0008] In some embodiments, one end of the transmission shaft extends out of the outer end portion through the through hole.

[0009] In some embodiments, one end of the transmission shaft is detachably abutted against the passive end.

[0010] In some embodiments, a return spring is also included, which is sleeved on the transmission shaft. Both ends of the return spring are axially limited, and one of the two ends is a retaining spring arranged on the transmission shaft. Through the axial limitation of the retaining spring, the return spring axially resets the transmission shaft in the axial direction. When the clutch handle is rotated in the separation direction, the clutch handle drives the passive end to axially push the transmission shaft back through the connecting rod mechanism, and the transmission shaft drives the transmission part to separate from the output end to achieve the separation purpose. At the same time, the return spring is compressed by the retaining spring to store energy. When the clutch handle is rotated in the engagement direction, the clutch handle drives the passive end to retreat through the connecting rod mechanism to release the axial limitation on one end of the transmission shaft. The transmission shaft is reset under the action of the return spring, and at the same time, the transmission shaft drives the transmission part to resume connection with the output end to achieve the engagement purpose.

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

[0012] In some embodiments, a rotational matching hole is provided on the circumference of the planetary gear reducer, and the rotation shaft of the clutch handle is inserted into the rotational matching hole for rotational matching.

[0013] In some embodiments, the rotating matching hole is provided with a limiting rod, the rotating shaft is provided with a limiting groove, the limiting rod is matched and connected with the limiting groove, the limiting groove is fan-shaped, and the clutch handle can realize the positioning of the separation position and the combination position under the limitation of the limiting rod.

[0014] After adopting the above structure, compared with the prior art, the utility model has the following advantages:

[0015] In the present disclosure, the clutch handle rotates to drive the working end of the transmission structure to move axially. The axial movement of the working end pushes the transmission shaft to move axially. Moreover, the transmission shaft 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 output-side planetary gear set. The input end and the output end are connected in a clutchable transmission manner through the axially slidable socket connection of the said transmission part. Therefore, when separating, it is relatively easy to rotate the clutch handle without dead points. When combination is required, the clutch handle rotates in the reverse direction, and the transmission part combines the input end and the output end. Moreover, 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 to make the transmission part combine the input end and the output end, and there are no dead points in such combination, and the clutch handle can easily rotate in the reverse direction.

[0016] In addition, the transmission shaft passes through the winch drum to reach the input-side planetary gear set of the planetary gear reducer and is in driving connection with the input sun gear of the input-side planetary gear set. That is, the transmission shaft itself does not separate and combine, and the transmission shaft and the input sun gear always maintain a driving connection. Instead, a transmission part is added, and this transmission part is provided between the input end of the winch drum and the output end of the output-side planetary gear set. Therefore, in the separated state, the transmission part will release the driving connection between the input end and the output end, and when the winch drum rotates, it will not drive the planetary gear reducer to rotate, which is beneficial for more easily releasing the towing rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a top view of an electric winch with a clutch handle for clutch operation.

[0018] Figure 2 It is a sectional view taken along line A-A.

[0019] Figure 3 It is a three-dimensional schematic diagram of an electric winch with a clutch handle for clutch operation.

[0020] Figure 4 It is a Figure 3 three-dimensional schematic diagram after removing the top part of the protective cover on the basis of

[0021] Figure 5 It is a Figure 4 three-dimensional schematic diagram after further removing the clutch handle on the basis of

[0022] Figure 6 It is a Figure 5 three-dimensional schematic diagram after further removing all the protective covers on the basis of

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

[0024] Description of the reference numerals in the drawings: 1 - electric motor; 2 - bracket; 3 - hoisting drum; 4 - planetary gear reducer; 5 - transmission 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 - return spring; 16 - snap ring; 17 - working end; 18 - active end; 19 - passive end; 20 - sealing ring; 21 - rotation fitting hole; 22 - limiting rod; 23 - limiting groove; 24 - through hole; 25 - link mechanism; 26 - braking assembly; 27 - connecting sleeve; 28 - planetary carrier side plate; 29 - protective cover; 30 - rotating shaft. Detailed implementation manners

[0025] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The embodiments described below are only examples, and other obvious variations can be conceived by those skilled in the art. The basic principles defined in the following description of the present utility model can be applied to other implementation schemes, variant schemes, improvement schemes, equivalent schemes, and other technical schemes that do not depart from the spirit and scope of the present utility model.

[0026] Those skilled in the art should understand that in the disclosure of the present utility model, the orientation or positional relationships indicated by the terms "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present utility model.

[0027] As Figures 1 to 7As shown in the figure, the present disclosure provides an electric winch with a clutch handle for clutch operation, which includes 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 installed 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 transmission shaft 5. The transmission shaft 5 passes through the winch drum 3 to reach the input side planetary gear set 6 of the planetary gear reducer 4 and is in driving connection with 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 on the side of the planetary gear reducer 4 close to the bracket 2 is an output side planetary gear set 9 for driving the winch drum 3 to rotate. There is a transmission part 12 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, 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 axially slidably sleeved through the transmission part 12 to achieve a clutchable transmission connection; the transmission part 12 is also sleeved on the transmission shaft 5, and the transmission shaft 5 and the transmission part 12 can rotate relative to each other. When a clutch is needed, the transmission shaft 5 drives the transmission part 12 to axially slide to achieve the clutch operation; the transmission shaft 5 is also axially slidably sleeved and rotationally connected with the input sun gear 7, and a through hole 24 and a transmission structure 13 are provided at the outer end 8. 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 clutch handle 14 is also included, which is arranged circumferentially on 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 axially move, and the working end 17 axially moves to push the transmission shaft 5 to axially move.

[0028] As Figure 2 shown, one end of the winch drum 3 on the side of the output side planetary gear set 9 is provided with a connection sleeve 27. The connection sleeve 27 is axially slidably sleeved with the transmission part 12, and the connection sleeve 27 serves as the input end 10.

[0029] The output side planetary gear set 9 sets the output end 11 on the planetary carrier side plate 28 on the side of the connection sleeve 27. After being decelerated by the planetary gear reducer 4, the output side planetary gear set 9 performs transmission output through the planetary carrier side plate 28.

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

[0031] In some embodiments, as Figure 2 、 6As shown, the transmission structure 13 includes a lever, the active end 18 of the lever is connected to the clutch handle 14 through a connecting rod mechanism 25, the passive end 19 of the lever is connected to one end of the transmission shaft 5, and the passive end 19 serves as the working end 17. The lever has the characteristics of large span, simple structure and durability.

[0032] The transmission structure 13 may also be other structures, and any transmission structure 13 applicable to the present disclosure may be applied to the present disclosure.

[0033] In some embodiments, Figure 2 , 6 As shown, one end of the transmission shaft 5 extends out of the outer end portion 8 through the through hole 24. This is conducive to simplifying the transmission structure 13.

[0034] In some embodiments, Figure 2 , 6 As shown, one end of the transmission shaft 5 is detachably connected to the passive end 19. In this way, when the transmission part 12 is not aligned with the output end 11, the passive end 19 can still be reset without being restricted by the transmission shaft 5, avoiding the generation of a dead point.

[0035] In some embodiments, Figure 2 As shown, it also includes a return spring 15, which is sleeved on the transmission shaft 5. Both ends of the return spring 15 are axially limited, and one of the two ends is a retaining spring 16 arranged on the transmission shaft 5. Through the axial limitation of the retaining spring 16, the return spring 15 axially resets the transmission shaft 5 in the axial direction. When the clutch handle 14 is rotated in the separation direction, the clutch handle 14 drives the passive end 19 to axially push back the transmission shaft 5 through the connecting rod mechanism 25, and the transmission shaft 5 drives the transmission part 12 to separate from the output end 11 to achieve the separation purpose. At the same time, the return spring 15 is compressed by the retaining spring 16 to store energy. When the clutch handle 14 is rotated in the engagement direction, the clutch handle 14 drives the passive end 19 to retreat through the connecting rod mechanism 25 to release the axial limitation on one end of the transmission shaft 5, and the transmission shaft 5 is reset under the action of the return spring 15, and at the same time, the transmission shaft 5 drives the transmission part 12 to resume connection with the output end 11 to achieve the engagement purpose.

[0036] In this way, the reset of the transmission shaft 5 can rely on the reset spring 15, so that when the transmission part 12 and the output end 11 are not aligned, the transmission part 12 and the output end 11 can be adaptively restored to the connection after alignment by rotating the winch drum 3, without relying on rotating the clutch handle 14, thereby improving the user experience. Since the speed ratio of the input end 10 to the output end 11 is 1:1, the rotation of the winch drum 3 can easily align the transmission part 12 with the output end 11, thereby improving the reliability of the restored connection.

[0037] In this example, although the connecting rod mechanism 25 is taken as an example, and the connecting rod mechanism 25 is designed with a crank connecting rod mechanism to convert rotational motion into translational motion, the clutch handle 14 can also be realized through other transmission structures. Any transmission structure applicable to the transmission structure 13 and the clutch handle 14 in the present disclosure can be applied to the present disclosure.

[0038] To protect the transmission structure 13 and the connecting rod mechanism 25, as Figure 3 shown, a protective cover 29 is further included.

[0039] In some embodiments, as Figure 2 shown, a brake assembly 26 is further included. The brake assembly 26 can adopt the prior art. The electric motor 1 transmits power to the transmission shaft 5 through the brake assembly 26, so that one end of the brake assembly 26 located on one side of the transmission shaft 5 is used as one of the axial limits of the return spring 15.

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

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

[0042] In some embodiments, as Figure 5 , 6 , 7 shown, the rotation fit hole 21 is provided with a limiting rod 22, the rotation shaft 30 is provided with a limiting groove 23, the limiting rod 22 is connected with the limiting groove 23 in a matching manner, the limiting groove 23 is fan-shaped, and the clutch handle 14 can be positioned at two positions, namely the separation position and the engagement position, under the limitation of the limiting rod 22. Thus, it is convenient for users to operate.

[0043] When understanding the present invention, if necessary, the above structures can be referred to other embodiments / appendices Figure 1 and understood, and will not be elaborated here.

[0044] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure, when thinking of changes or substitutions, should be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. An electric winch with a clutch handle for engaging and disengaging, comprising an electric motor (1), a bracket (2), a hoisting drum (3) and a planetary gear reducer (4). The electric motor (1) and the planetary gear reducer (4) are respectively installed on both sides of the bracket (2). The hoisting drum (3) is rotatably connected between the brackets (2). The electric motor (1) and the planetary gear reducer (4) are connected via a transmission shaft (5). The transmission shaft (5) passes through the hoisting drum (3) to reach the input side planetary gear set (6) of the planetary gear reducer (4) and is in driving connection with 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 on the side of the planetary gear reducer (4) close to the bracket (2) is the output side planetary gear set (9) for driving the hoisting drum (3) to rotate. It is characterized in that, A transmission part (12) is provided between the input end (10) of the hoist 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 the transmission part (12) is axially slidably sleeved with the output end (11); the input end (10) and the output end (11) are connected to each other through the axially slidable sleeve of the transmission part (12); the transmission part (12) is also sleeved on the transmission shaft (5); the transmission shaft (5) and the transmission part (12) are relatively rotatable; and when clutching is required, the transmission shaft (5) drives the transmission part (12) to axially slide. The transmission shaft (5) is also axially slidably sleeved with the input sun gear (7) and is connected to the transmission structure (13), and the outer end portion (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), and also includes a clutch handle (14) arranged 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, and the axial movement of the working end (17) drives the transmission shaft (5) to move axially.

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

3. The electric winch with clutch operation by the clutch handle according to claim 2, characterized in that, One end of the transmission shaft (5) extends out of the outer end portion (8) through the through hole (24).

4. The electric winch that performs clutching with the clutch handle according to claim 2 or 3, characterized in that, One end of the transmission shaft (5) is detachably abutted against the passive end (19).

5. The electric winch with clutch operation by the clutch handle according to claim 4, wherein, The invention also comprises a return spring (15), which is sleeved on the transmission shaft (5), and the two ends of the return spring (15) are axially limited, and one of the two ends is a retaining spring (16) arranged on the transmission shaft (5). Through the axial limitation of the retaining spring (16), the return spring (15) axially resets the transmission shaft (5). When the clutch handle (14) rotates in the separation direction, the clutch handle (14) drives the passive end (19) to axially push back the transmission shaft (5) through the connecting rod mechanism (25), and the transmission shaft (5) drives the transmission part (12) to separate from the output end (11) to achieve the purpose of separation. At the same time, the return spring (15) is compressed by the retaining spring (16) to store energy. When the clutch handle (14) rotates in the direction of engagement, the clutch handle (14) drives the passive end (19) to retract through the connecting rod 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) to resume connection with the output end (11) to achieve the purpose of engagement.

6. The electric winch that performs clutching with the clutch handle according to claim 1 or 3, characterized in that, A sealing ring (20) is provided between the transmission shaft (5) and the through hole (24).

7. The electric winch that performs clutching with the clutch handle according to claim 1, wherein, The planetary gear reducer (4) is provided with a rotation fitting hole (21) in the circumferential direction, and the rotation shaft (30) of the clutch handle (14) is inserted into the rotation fitting hole (21) for rotational fit.

8. The electric winch that performs clutching with the clutch handle according to claim 7, characterized in that, The rotation fitting hole (21) is provided with a limiting rod (22), and the rotation shaft (30) is provided with a limiting groove (23). The limiting rod (22) is connected with the limiting groove (23) in a matching manner. The limiting groove (23) is fan-shaped, and the clutch handle (14) can be positioned at two positions, namely the separation position and the engagement position, under the limitation of the limiting rod (22).

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