Manual clutch electric capstan

Abstract

The utility model provides a manual clutch electric capstan which is characterized in that 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 part (12) is further connected to a transmission shaft (5) in a sleeved mode, and the transmission shaft (5) drives the transmission part (12) to slide in the axial direction. The clutch shaft (13) and the clutch hand wheel (14) are arranged at the outer side end part (8) of the planetary gear reducer (4), the clutch hand wheel (14) rotates to drive the clutch shaft (13) to axially move, and the clutch shaft (13) axially moves to drive the transmission shaft (5) to axially move so as to realize clutch operation; the clutch hand wheel is arranged at the outer side end of the planetary gear box, combination is easy, and the end structure can be made small.

Description

Technical Field

[0001] The utility model relates to the technical field of winches, and particularly to an electric winch with manual clutch. Background Art

[0002] At present, for an electric winch with manual clutch, a common structure is to arrange a clutch handle in the radial direction of the planetary gearbox of the electric winch. For example, for the electric winch disclosed in the Chinese invention patent with the authorization publication number of CN105621300B, a dial is arranged in the radial direction of the planetary gearbox, and the clutch purpose is achieved by rotating the dial.

[0003] However, when the clutch handle needs to be arranged at one end in the axial direction, the structure needs to be redesigned. For example, for an electric winch disclosed in the Chinese utility model patent with the authorization publication number of CN201313797Y, a clutch gear and a clutch spring of the electric winch are sleeved on a clutch cam, and the clutch gear can move axially, so as to realize the separation and engagement of the clutch gear and a fixed tooth ring. When the clutch handwheel is rotated, the clutch gear can be separated from the fixed tooth ring due to the action of the clutch spring; when the clutch handwheel is rotated in the reverse direction, the clutch gear is driven by the clutch cam to move axially, so that the clutch gear can be engaged with the fixed tooth ring. However, the current structure is relatively difficult to recombine, and the end structure is relatively large, so further research is needed.

[0004] In addition, for the existing electric winch, after the clutch is separated, 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

[0005] The utility model provides an electric winch with manual clutch, and a clutch handwheel is arranged at the outer end of the planetary gearbox, which is relatively easy to combine and is beneficial to making the end structure smaller.

[0006] To achieve the above object, the embodiments of the utility model adopt the following technical solutions:

[0007] A manual clutch electric winch, comprising an electric motor, a bracket, a hoisting drum and a planetary gear reducer. The electric motor and the planetary gear reducer are respectively installed on both sides of the bracket. The hoisting 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 hoisting 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 hoisting drum to rotate. There is a transmission part between the input end of the hoisting 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 a 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 separation is required, the transmission shaft drives the transmission part to axially slide. The transmission shaft is axially slidably sleeved and rotationally connected with the input sun gear. It also includes a clutch shaft and a clutch handwheel arranged at the outer end of the planetary gear reducer. The clutch shaft is axially slidably sleeved with the input sun gear to achieve a pushing effect on the transmission shaft, and the clutch shaft and the input sun gear can rotate relative to each other. The outer end of the clutch shaft is in transmission connection with the clutch handwheel. Rotating the clutch handwheel can drive the clutch shaft to axially move, and the axial movement of the clutch shaft is used to drive the transmission shaft to axially move to achieve the clutch operation.

[0008] In some embodiments, it further includes a return spring. The return spring is sleeved on the transmission shaft, and both ends of the return spring are axially limited. One of the two ends is a snap ring arranged on the transmission shaft. Through the axial limitation of the snap ring, the return spring axially resets the transmission shaft axially.

[0009] In some embodiments, the clutch handwheel rotates in the first direction to drive the clutch shaft to axially move towards the transmission shaft side. The transmission shaft is pushed by the clutch shaft to drive the transmission part to separate from the output end, thus achieving transmission separation. At the same time, the snap ring moves with the transmission shaft to compress the return spring. When the clutch handwheel rotates in the opposite direction of the first direction, the clutch shaft axially moves away from the transmission shaft side. The axial limitation of the transmission shaft by the clutch shaft is released, and the transmission shaft axially moves back and resets under the action of the return spring. At the same time, the transmission part is driven by the transmission shaft to reconnect with the output end, thus achieving transmission combination.

[0010] In some embodiments, it further includes an installation cavity disposed between the outer end of the planetary gear reducer and the clutch handwheel. The outer end of the clutch shaft can extend into the installation cavity, and at least one radially driving rod distributed circumferentially is provided at the outer end of the clutch shaft. An axial guiding groove is provided on the inner peripheral wall of the installation cavity, and the radially driving rod is axially guided and matched with the axial guiding groove. A rotating part integrally or connectedly provided with the clutch handwheel is further provided in the installation cavity. The rotating part is provided with a spiral guiding surface, and the spiral guiding surface is matched with the radially driving rod. When the rotating part is driven to rotate by the clutch handwheel, the rotating part rotates through the spiral guiding surface to axially move the radially driving rod under the guidance of the spiral guiding surface.

[0011] In some embodiments, the spiral guiding surface is open towards the side of the radially driving rod. When the spiral guiding surface rotates from the axially high point end to the axially low point end, the spiral guiding surface releases the axial limit on the radially driving rod, and at the same time, the radially driving rod is pushed back and reset by the transmission shaft against the clutch shaft.

[0012] In some embodiments, a first axial positioning platform is provided at the axially high point end of the spiral guiding surface and / or a second axial positioning platform is provided at the axially low point end.

[0013] In some embodiments, the first axial positioning platform is arranged as an axial notch opening towards the side of the radially driving rod.

[0014] In some embodiments, an axial positioning surface is further provided on one side of the second axial positioning platform, and the axial positioning surface extends to the outer end. The radially driving rod circumferentially limits the rotating part through the axial positioning surface. In addition, when the radially driving rod is pushed back and reset by the transmission shaft against the clutch shaft, the axial positioning surface can also axially guide the radially driving rod.

[0015] In some embodiments, it further includes a mounting seat disposed at the outer end. The mounting seat is provided with the installation cavity, and the rotating part is axially rotatably sleeved with the installation cavity. The mounting seat is provided with a through hole at the bottom of the installation cavity, and the rotating part is connected to the clutch handwheel through the through hole.

[0016] In some embodiments, a sealing ring is provided between the rotating part and the installation cavity.

[0017] After adopting the above structure, compared with the prior art, the utility model has the following advantages:

[0018] In the present disclosure, the structures related to the axial movement at the outer end of the planetary gear reducer mainly include an input sun gear, a transmission shaft, and a clutch shaft. The transmission part for clutch transmission is arranged between the input end of the hoisting drum and the output end of the output-side planetary gear set, so that the structure distribution is more optimized, that is, it is not concentrated at the outer end of the planetary gear reducer, which is beneficial to making the end structure smaller. Since the speed ratio is 1:1 when the input end and the output end are combined, the speed difference between the input end and the output end is very small during combination, which is beneficial to rotating the hoisting drum for alignment, so that it is easy for the transmission part to combine the input end and the output end, that is, the combination is relatively easy.

[0019] In addition, since the transmission shaft does not need to bear the functions of repeated separation and repeated insertion, it is beneficial to reduce the requirements for the transmission shaft and is beneficial to production and manufacturing.

[0020] In addition, the transmission shaft passes through the hoisting 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, that is, the transmission shaft itself does not perform separation and combination, and the transmission shaft and the input sun gear always maintain a transmission connection. Instead, a transmission part is added, and this transmission part is arranged between the input end of the hoisting drum and the output end of the output-side planetary gear set. Therefore, in the separated state, the transmission part will release the transmission connection between the input end and the output end, and the hoisting drum will not drive the planetary gear reducer to rotate when it rotates, which is beneficial to releasing the towing rope more easily. Description of the Drawings

[0021] Figure 1 It is a top view of a manual-clutch electric winch.

[0022] Figure 2 It is a sectional view taken along line A-A.

[0023] Figure 3 It is an enlarged view of A.

[0024] Figure 4 It is a three-dimensional schematic diagram of a clutch handwheel connected with a rotating part.

[0025] Figure 5 It is a three-dimensional schematic diagram of the related structure shown from the inner side view of the installation cavity.

[0026] Figure 6 It is at Figure 5 The three-dimensional schematic diagram shown after removing the clutch shaft on the basis.

[0027] Figure 7 It is at Figure 6 The three-dimensional schematic diagram shown after removing the rotating part on the basis.

[0028] Figure 8 It is at Figure 7Schematic three-dimensional view shown after removing the clutch handwheel on the basis of...

[0029] Figure 9 Schematic three-dimensional view of a clutch handwheel.

[0030] Figure 10 Schematic three-dimensional view shown after removing the mounting base and the clutch handwheel of a manually-clutchable electric winch.

[0031] Figure 11 For... Figure 10 Schematic three-dimensional view shown after adding a mounting base and a rotating part on the basis of...

[0032] Figure 12 Schematic three-dimensional view of a rotating part.

[0033] Description of reference numerals: 1 - electric motor, 2 - bracket, 3 - winch 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 - clutch shaft, 14 - clutch handwheel, 15 - return spring, 16 - circlip, 17 - mounting base, 18 - mounting cavity, 19 - radial transmission rod, 20 - axial guide groove, 21 - rotating part, 22 - spiral guide surface, 23 - axially high point end, 24 - axially low point end, 25 - first axially positioning platform, 26 - second axially positioning platform, 27 - axially positioning surface, 28 - through hole, 29 - sealing ring, 30 - brake assembly, 31 - connecting sleeve, 32 - planetary carrier side plate, 33 - radial groove, 34 - radial protrusion. Detailed implementation manners

[0034] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. 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 can be applied to other implementation manners, variations, improvements, equivalent solutions, and other technical solutions without departing from the spirit and scope of the present invention.

[0035] Those skilled in the art should understand that in the disclosure of the present invention, the orientation or positional relationships indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the present invention 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 invention.

[0036] As shown Figures 1 to 12 in the figure, the present disclosure provides a manually clutched electric winch, which includes 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 drivingly 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 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 hoisting drum 3 to rotate. There is a transmission part 12 between the input end 10 of the hoisting 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 drive 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; the transmission shaft 5 is axially slidably sleeved and rotationally drivingly connected to the input sun gear 7. It also includes a clutch shaft 13 and a clutch handwheel 14 arranged at the outer end 8 of the planetary gear reducer 4. The clutch shaft 13 is axially slidably sleeved with the input sun gear 7 to achieve a pushing effect on the transmission shaft 5, and the clutch shaft 13 and the input sun gear 7 can rotate relative to each other. The outer end of the clutch shaft 13 is drivingly connected to the clutch handwheel 14. Rotating the clutch handwheel 14 can drive the clutch shaft 13 to axially move, and the axial movement of the clutch shaft 13 is used to drive the transmission shaft 5 to axially move to achieve a clutch operation.

[0037] As shown Figure 2 in the figure, one end of the hoisting drum 3 on the side of the output side planetary gear set 9 is provided with a connecting sleeve 31. The connecting sleeve 31 is axially slidably sleeved with the transmission part 12, and the connecting sleeve 31 serves as the input end 10.

[0038] The output side planetary gear set 9 sets the output end 11 on the planetary carrier side plate 32 on its side of the connecting sleeve 31. 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 32.

[0039] The transmission part 12 is provided as a spline, and both the input end 10 and the output end 11 are axially slidably sleeved and rotationally drivingly connected to the spline. The transmission part 12 can also be other structures, such as a polygonal shaft.

[0040] In some embodiments, as shown Figure 2As shown, it further includes a return spring 15 sleeved on the transmission shaft 5. Both ends of the return spring 15 are axially limited. One of these two ends is a snap ring 16 provided on the transmission shaft 5. Through the axial limitation of the snap ring 16, the return spring 15 axially resets the transmission shaft 5 in the axial direction. In this way, the reset of the transmission shaft 5 can rely on the return spring 15. Thus, 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 connection after alignment by rotating the hoisting drum 3, without relying on the rotation of the rotating clutch handwheel 14, improving the user experience. Since the speed ratio between the input end 10 and the output end 11 is 1:1, it is very easy to align the transmission part 12 and the output end 11 by rotating the hoisting drum 3, thereby improving the reliability of the restored connection.

[0041] In some embodiments, as Figure 2 shown, it further includes a brake assembly 30, and the brake assembly 30 can adopt the existing technology. The electric motor 1 transmits power to the transmission shaft 5 through the brake assembly 30, so as to use one end of the brake assembly 30 located on one side of the transmission shaft 5 as one of the axial limitations of the return spring 15.

[0042] In some embodiments, as Figure 2 shown, the clutch handwheel 14 rotates in the first direction to drive the clutch shaft 13 to axially move towards the transmission shaft 5. The transmission shaft 5 is pushed by the clutch shaft 13 to drive the transmission part 12 to separate from the output end 11, thus realizing transmission separation. At the same time, the snap ring 16 moves with the transmission shaft 5 to compress the return spring 15; when the clutch handwheel 14 rotates in the opposite direction of the first direction, the clutch shaft 13 axially moves away from the transmission shaft 5. The axial limitation of the transmission shaft 5 by the clutch shaft 13 is released, and the transmission shaft 5 axially moves reversely and resets under the action of the return spring 15. At the same time, the transmission part 12 and the output end 11 are restored to connection under the drive of the transmission shaft 5, thus realizing transmission combination. The foregoing technical solution has a relatively compact axial structure. The first direction can be set to counterclockwise or clockwise, which can be designed according to needs.

[0043] In some embodiments, it further includes an installation cavity 18 provided between the outer end 8 of the planetary gear reducer 4 and the clutch handwheel 14. The outer end of the clutch shaft 13 can extend into the installation cavity 18, and at least one radial transmission rod 19 distributed circumferentially is provided at the outer end of the clutch shaft 13. An axial guide groove 20 is provided on the inner peripheral wall of the installation cavity 18. The radial transmission rod 19 is axially guided and matched with the axial guide groove 20. A rotating part 21 integrally provided or connected with the clutch handwheel 14 is further provided in the installation cavity 18. The rotating part 21 is provided with a spiral guide surface 22, and the spiral guide surface 22 cooperates with the radial transmission rod 19. When the rotating part 21 is driven to rotate by the clutch handwheel 14, the rotating part 21 rotates through the spiral guide surface 22 to axially move the radial transmission rod 19 under the guidance of the spiral guide surface 22.

[0044] In this example, the number of radial drive rods 19 is three, and they are evenly distributed along the outer circumference of the clutch shaft 13. Correspondingly, the number of axial guide grooves 20 is also three.

[0045] The installation cavity 18 can be arranged on the outer end 8 or on the side of the clutch handwheel 14, and the specific structure can be set as required.

[0046] In this example, it also includes a mounting seat 17 arranged on the outer end 8. The mounting seat 17 is provided with the installation cavity 18. The rotating part 21 is axially rotatably sleeved in the installation cavity 18. The mounting seat 17 is provided with a through hole 28 at the bottom of the installation cavity 18. The rotating part 21 is connected to the clutch handwheel 14 through this through hole 28. In this way, it is beneficial to simplify production and manufacturing, and axial limit of the clutch handwheel 14 is achieved. In addition, the mounting seat 17 can further prevent dirt from entering the planetary gear reducer 4.

[0047] To better prevent dirt, as Figure 3 , 8 shown, a sealing ring 29 is provided between the rotating part 21 and the installation cavity 18.

[0048] To better transmit power, as Figure 7 , 9 , shown in 11, a concave-convex mating transmission structure is provided between the back surface of the rotating part 21 and the front side surface of the clutch handwheel 14. In this example, the back surface of the rotating part 21 is provided with a radial groove 33, and the front side surface of the clutch handwheel 14 is provided with a radial protrusion 34.

[0049] In some embodiments, as Figure 4 , 5 , shown in 12, the spiral guide surface 22 is arranged to be open towards the side of the radial drive rod 19. When the spiral guide surface 22 rotates from the axial high point end 23 to the axial low point end 24, the spiral guide surface 22 releases the axial limit on the radial drive rod 19, and at the same time, the radial drive rod 19 is pushed back to its original position by the push-back of the drive shaft 5 on the clutch shaft 13. The number of spiral guide surfaces 22 is the same as the number of radial drive rods 19.

[0050] In some embodiments, as Figure 4 , 5 , shown in 12, the spiral guide surface 22 is provided with a first axial positioning platform 25 at the axial high point end 23 and / or a second axial positioning platform 26 at the axial low point end 24. In this way, the first axial positioning platform 25 and the second axial positioning platform 26 play a positioning role. On the one hand, the positioning structure setting is simplified, and on the other hand, it enables the user to easily turn the clutch handwheel 14 to the accurate clutch position and ensures reaching the clutch position.

[0051] In some embodiments, asFigure 4 , 5 , as shown in FIGS. 12, the first axial positioning platform 25 is arranged as an axial notch opening towards the side of the radial transmission rod 19.

[0052] In some embodiments, as Figure 3 , 4 , 12 shown, on one side of the second axial positioning platform 26, there is also an axial positioning surface 27, which extends to the outer end 8, and the radial transmission rod 19 circumferentially limits the rotating part 21 through the axial positioning surface 27.

[0053] In addition, when the radial transmission rod 19 is pushed back and reset by the transmission shaft 5 against the clutch shaft 13, the axial positioning surface 27 can also axially guide the radial transmission rod 19. Since the transmission shaft 5 is reset by means of the return spring 15 and then pushes back the clutch shaft 13, when the transmission part 12 and the output end 11 are not aligned, the clutch shaft 13 will not be reset as the clutch handwheel 14 rotates. Then there is a situation where the clutch handwheel 14 rotates so that the axial positioning surface 27 abuts against the radial transmission rod 19 but the clutch shaft 13 is not reset. Then when the transmission part 12 and the output end 11 are aligned, the radial transmission rod 19 will accurately fall onto the second axial positioning platform 26 along the axial positioning surface 27, so as to obtain an accurate position. The foregoing structure is meaningful for the structural reliability.

[0054] In addition to the above structure in which the clutch handwheel 14 drives the clutch shaft 13 to axially move, it can also be other structures. For example, a threaded hole is provided at the outer end 8, and the clutch shaft 13 is threadedly connected to the threaded hole. Then when the clutch handwheel 14 drives the clutch shaft 13 to rotate, the axial movement of the clutch shaft 13 can be realized through the threaded connection.

[0055] When understanding the present invention, if necessary, the above structure can refer to other embodiments / attachments Figure 1 and be understood, and will not be elaborated here.

[0056] 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, 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 claimed rights.

Claims

1. A manually-clutched electric winch, comprising 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. 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 slide axially; The driving shaft (5) and the input sun gear (7) can be axially slidably sleeved and rotationally connected, and also include a clutch shaft (13) and a clutch hand wheel (14) arranged at the outer end (8) of the planetary gear reducer (4). The clutch shaft (13) and the input sun gear (7) can be axially slidably sleeved to realize the pushing action on the driving shaft (5), and the clutch shaft (13) and the input sun gear (7) can rotate relatively. The outer end of the clutch shaft (13) is transmission-connected with the clutch hand wheel (14). The rotation of the clutch hand wheel (14) can drive the clutch shaft (13) to move axially. The axial movement of the clutch shaft (13) is used to drive the axial movement of the driving shaft (5) to realize the clutch operation.

2. The electric winch with manual clutch according to claim 1, 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) in the axial direction.

3. The electric winch with manual clutch according to claim 2, wherein, The clutch hand wheel (14) rotates in a first direction to drive the clutch shaft (13) to move axially toward one side of the transmission shaft (5), and the transmission shaft (5) is pushed by the clutch shaft (13) to drive the transmission part (12) to separate from the output end (11), thereby realizing transmission separation, and at the same time, the retaining spring (16) moves together with the transmission shaft (5) to compress the reset spring (15); when the clutch hand wheel (14) rotates in a direction opposite to the first direction, the clutch shaft (13) moves axially away from the transmission shaft (5), and the transmission shaft (5) is released from axial limitation by the clutch shaft (13), and the transmission shaft (5) moves axially in the opposite direction to reset under the action of the reset spring (15), and at the same time, the transmission part (12) is driven by the transmission shaft (5) to restore the connection with the output end (11), thereby realizing transmission connection.

4. The electric winch with manual clutch according to claim 1 or 2 or 3, characterized in that, It further includes an installation cavity (18) provided between the outer end portion (8) of the planetary gear reducer (4) and the clutch handwheel (14). The outer end of the clutch shaft (13) can extend into the installation cavity (18), and at least one radial transmission rod (19) distributed circumferentially is provided at the outer end of the clutch shaft (13). An axial guide groove (20) is provided on the inner peripheral wall of the installation cavity (18), and the radial transmission rod (19) is axially guided and matched with the axial guide groove (20). A rotating portion (21) integrally provided or connected with the clutch handwheel (14) is further provided in the installation cavity (18). The rotating portion (21) is provided with a spiral guide surface (22), and the spiral guide surface (22) is matched with the radial transmission rod (19). When the rotating portion (21) is driven to rotate by the clutch handwheel (14), the rotating portion (21) rotates through the spiral guide surface (22) to axially move the radial transmission rod (19) under the guidance of the spiral guide surface (22).

5. The electric winch with manual clutch according to claim 4, wherein, The spiral guide surface (22) is arranged to be open towards the side of the radial transmission rod (19). When the spiral guide surface (22) rotates from the axial high point end (23) to the axial low point end (24), the spiral guide surface (22) releases the axial limit on the radial transmission rod (19), and at the same time, the radial transmission rod (19) is pushed back to its original position by the push-back of the transmission shaft (5) on the clutch shaft (13).

6. The electric winch with manual clutch according to claim 4, characterized in that, The spiral guide surface (22) is provided with a first axial positioning platform (25) at the axial high point end (23) and / or a second axial positioning platform (26) at the axial low point end (24).

7. The electric winch with manual clutch according to claim 6, wherein, The first axial positioning platform (25) is arranged as an axial notch opening towards the side of the radial transmission rod (19).

8. The electric winch with manual clutch according to claim 6, wherein, An axial positioning surface (27) is further provided on one side of the second axial positioning platform (26), and the axial positioning surface (27) extends to the outer end portion (8). The radial transmission rod (19) circumferentially limits the rotating portion (21) through the axial positioning surface (27). In addition, when the radial transmission rod (19) is pushed back to its original position by the push-back of the transmission shaft (5) on the clutch shaft (13), the axial positioning surface (27) can also axially guide the radial transmission rod (19).

9. The electric winch with manual clutch according to claim 4, characterized in that, It further includes a mounting seat (17) provided at the outer end portion (8). The mounting seat (17) is provided with the installation cavity (18). The rotating portion (21) is axially rotatably sleeved with the installation cavity (18). The mounting seat (17) is provided with a through hole (28) at the bottom of the installation cavity (18), and the rotating portion (21) is connected with the clutch handwheel (14) through the through hole (28).

10. The electric winch with manual clutch according to claim 4, characterized in that, A sealing ring (29) is provided between the rotating portion (21) and the installation cavity (18).

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