Electric capstan with radial electric clutch

Abstract

The utility model provides a radial electric clutch electric capstan which comprises a support (1), a winding drum (2), a planetary gear reducer (3) and an electric motor (4), a labor-saving lever structure (5) is arranged in the circumferential direction of the planetary gear reducer (3), one side of a power arm (7) of the labor-saving lever structure (5) is connected with an electric driving unit (6), one side of a resistance arm (8) of the labor-saving lever structure (5) is hinged to a radial movement straight pin (11), and the resistance arm (8) of the labor-saving lever structure (5) is connected with the electric driving unit (6). The electric drive unit (6) is provided with a straight pin (11), the straight pin (11) is matched with a radial limiting hole (13) of an inner gear ring (12) of the planetary gear reducer (3), the electric drive unit (6) is provided with a telescopic output end (14), an abutting structure (15) is arranged between one side of the power arm (7) and the output end (14), the straight pin (11) is connected with an elastic piece (16), and the elastic piece (16) is used for driving the straight pin (11) to be inserted into the radial limiting hole; the electric capstan has high reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of winches, in particular to an electric winch with radial electric clutch. Background Art

[0002] Currently, there is an electric winch, which includes a bracket, a hoisting drum installed in the bracket, a planetary gear reducer connected to the bracket, and an electric motor. The electric motor is transmission-connected to the planetary gear reducer, and the planetary gear reducer is connected to the hoisting drum, so that the electric motor drives the hoisting drum to rotate forward or reverse.

[0003] The electric winch is generally used in vehicles, such as off-road vehicles, beach cars, boats, etc. Of course, in addition to being used in vehicles, it can also be used in other places where there is a need, that is, the application scenarios are relatively wide, and it is suitable for use in many occasions that require traction functions.

[0004] The electric winch is provided with a clutch structure to achieve power connection or disconnection between the electric motor and the winch drum. At present, there is an electric winch with electric clutch, which is provided with a telescopic shaft in the circumferential direction of the planetary gear reducer. The telescopic shaft is directly driven by the electromagnetic structure. The telescopic shaft corresponds to a gear ring in the planetary gear reducer. The gear ring is fixed / released by inserting / pulling out the radial hole on the gear ring through the telescopic shaft, thereby achieving the purpose of electric clutch. For example, an electromagnetic clutch electric winch disclosed in a Chinese patent with authorization announcement number CN205740118U has a fast response, but there is a problem of being difficult to pull out. If a large pull-out force is to be provided, the electromagnetic structure needs to be set very large.

[0005] The other is to use the eccentric principle. For example, an electric clutch winch disclosed in a Chinese patent application with publication number CN106966314A has a working principle of using a remote control to drive the reduction motor to work. The reduction motor drives the eccentric wheel to rotate, so that the linkage frame moves up and down, driving the direct pin to engage or disengage from the small inner gear ring, so that the clutch control device can realize the automatic clutch function. The initial position of the eccentric wheel in the clutch control device is at its lowest point at the upper dead center C. At this time, the initial state is engaged. When the signal receiver receives the remote control's disengagement command, the turntable rotates, and the eccentric wheel rotates at the same time, the linkage frame rises, and when the trigger rod touches the second trigger button of the limit switch, the reduction motor stops rotating, the highest point of the eccentric wheel reaches the upper dead center C, the direct pin disengages from the small inner gear ring, and the clutch control device is in the disengaged state. The above-mentioned scheme has a complex structure, and the limiting cooperation or disengagement of the direct pin and the small inner gear ring is completely achieved by the rotation cooperation of the eccentric wheel and the linkage frame, which has some problems. Specifically, when the direct pin and the small inner gear ring need to be limited, if the limiting holes on the direct pin and the small inner gear ring are not aligned, the reduction motor will be blocked. When the direct pin and the small inner gear ring need to be disengaged from the limiting cooperation, the force is applied by the rotation cooperation of the eccentric wheel and the linkage frame, so the force direction is not coaxial during the direct pin removal process. That is to say, there is a lateral component of force in the force direction, and wear is likely to occur between the side wall of the direct pin and the edge of the limiting hole on the small inner gear ring.

[0006] Therefore, the applicant will propose an electric winch with radial electric clutch, which is conducive to solving the above problems and has higher reliability. Utility Model Content

[0007] The utility model provides an electric winch with radial electric clutch, which has higher reliability.

[0008] In order to achieve the above object, the embodiment of the utility model adopts the following technical solution:

[0009] A radial electric clutch electric winch comprises a bracket, a hoisting drum installed in the bracket, a planetary gear reducer and an electric motor connected to the bracket, the electric motor is transmission-connected to the planetary gear reducer, the planetary gear reducer is connected to the hoisting drum, a labor-saving lever structure is provided in the circumferential direction of the planetary gear reducer, one side of the power arm of the labor-saving lever structure is connected to the electric drive unit, one side of the resistance arm of the labor-saving lever structure is hinged with a radially moving direct pin, the direct pin cooperates with a radial limiting hole of an inner gear ring of the planetary gear reducer, and the electric drive unit is provided with a retractable output end, a counter-structure is provided between one side of the power arm and the output end, and the direct pin is connected with an elastic member, and the elastic member is used to drive the direct pin to insert into the radial limiting hole.

[0010] Through the offset structure, when separation is required, the output end extends out and offsets against one side of the power arm to push the power arm, thereby driving the resistance arm to tilt up, and the tilting of the resistance arm drives the direct pin to move radially to pull out the radial limiting hole, thereby completing the separation, and the elastic member is compressed or stretched by the direct pin to accumulate elastic potential energy; when re-combination is required, the output end retracts to release the limitation on the power arm, and under the action of the elastic potential energy, the direct pin moves in the opposite direction to push back the resistance arm, thereby driving the power arm to reset. If the direct pin is relative to the radial limiting hole at this time When the straight pin and the radial limit hole are aligned, the straight pin will be inserted into the radial limit hole to achieve re-alignment. If the straight pin and the radial limit hole are not aligned at this time, the output end will continue to retract and move further away from the power arm to release the limit. The front end of the straight pin elastically rests on the outer circumference of the inner gear ring under the action of elastic potential energy. Then, when the inner gear ring rotates to the point where the straight pin and the radial limit hole are relatively aligned, under the action of the elastic potential energy, the straight pin will be inserted into the radial limit hole to achieve re-alignment. At the same time, the release of the limit allows the power arm to be reset without obstacle.

[0011] In some embodiments, a force-saving lever structure is provided on the top of the planetary gear reducer, the direct pin is vertically arranged in the up and down direction, the output end is provided by the output shaft, and the output shaft is also vertically arranged in the up and down direction.

[0012] In some embodiments, a support plane is provided on the upper side of one end of the support of the power arm away from the force-saving lever structure, and the output end is located on the upper side of the support plane. The output end cooperates with the support plane up and down, and a guide arc surface is provided at the end of the one end. When separated, the guide arc surface moves upward with the power arm and is located below the lower side of the output end. When recombining, the output end moves downward and first resists against the guide arc surface, and under the guidance of the guide arc surface, it resumes cooperation with the support plane, thereby completely recombining.

[0013] In some embodiments, a vertical surface is provided on one side of the support plane close to the support, and the vertical surface and the support plane form an L-shaped structure.

[0014] In some embodiments, a guide hole is provided in the housing of the planetary gear reducer, and the straight pin is guided and matched with the guide hole.

[0015] In some embodiments, the direct pin is provided with a first limiting ring, and the first limiting ring cooperates with the shell to perform a first limiting on the direct pin, and the first limiting is used to limit the direct pin during re-combination.

[0016] In some embodiments, the direct pin is provided with a second limiting ring, and an elastic member is provided on the upper side of the direct pin located at the second limiting ring, the lower end of the elastic member is against the second limiting ring, the upper end of the elastic member is fixed, and the elastic member pushes the direct pin downward through the second limiting ring.

[0017] In some embodiments, when re-combined, the straight pin is still affected by the elastic force of the elastic member and does not become loose.

[0018] In some embodiments, the electric drive unit uses an electromagnetic push rod, and the telescopic end of the electromagnetic push rod serves as the output end.

[0019] In some embodiments, the planetary gear reducer includes a second-stage inner gear ring, the second-stage inner gear ring serves as the inner gear ring, the second-stage inner gear ring is provided with a radial limiting hole, the second-stage inner gear ring is arranged close to one side of the winch drum, the direct pin is arranged in the circumference of the second-stage inner gear ring, and cooperates with the radial limiting hole of the second-stage inner gear ring.

[0020] After adopting the above structure, compared with the prior art, the utility model has the following advantages:

[0021] In the present disclosure, due to the use of a force-saving lever structure, the electric drive unit can achieve the purpose of pulling out the direct pin with less force. For example, the electric drive unit uses an electromagnetic push rod, and a smaller-sized electromagnetic push rod can be used. This can not only utilize the advantage of the electromagnetic push rod's fast response, but also solve the problem of insufficient force and difficulty in pulling out, and reliability can be greatly improved.

[0022] At the same time, a radially movable straight pin is hinged on one side of the resistance arm of the force-saving lever structure, and the electric drive unit is provided with a retractable output end. A counter structure is set between one side of the power arm and the output end, and the straight pin is connected with an elastic member, which is used to drive the straight pin to insert into the radial limit hole. In this way, on the one hand, the straight pin is mainly subjected to axial pull-out force and insertion force, not only the lateral component is small, the directionality of the applied force is better, but also it is beneficial to reduce the wear between the side wall of the straight pin and the edge of the radial limit hole, and the reliability is greatly improved. On the other hand, since a counter structure is set between one side of the power arm and the output end, the output end only pushes the power arm when separated, and when recombined, the output end retracts to form a release distance, and the power arm is not restricted by the output end. The reset of the lever is based on whether the straight pin is inserted into the radial limit hole, thereby forming an adaptive structure, which can be applicable to whether the straight pin and the radial limit hole are relatively aligned, and when they are not aligned, they can be quickly inserted when the inner gear ring rotates to the relative alignment of the straight pin and the radial limit hole, and the reliability is greatly improved.

[0023] In summary, the present disclosure has made significant improvements in reliability overall through various aspects and has high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of an electric winch with radial electric clutch.

[0025] Figure 2 It is a three-dimensional schematic diagram of the housing of a planetary gear reducer.

[0026] Figure 3 This is a front view of the housing of a planetary gear reducer.

[0027] Figure 4 It is the AA section view.

[0028] Figure 5 It is a three-dimensional schematic diagram of the cooperation between a direct pin and a second-stage internal gear ring.

[0029] Figure 6 The present invention is a three-dimensional schematic diagram showing the housing of a planetary gear reducer from an inner side perspective after removing the force-saving lever structure and the second-stage inner gear ring.

[0030] Figure 7 The present invention is a three-dimensional schematic diagram showing a planetary gear reducer housing from a top side perspective after removing a force-saving lever structure and a second-stage inner gear ring.

[0031] Figure 8 The present invention is a front view of the housing of a planetary gear reducer after removing the force-saving lever structure and the second-stage inner gear ring.

[0032] Fig. 9 It is a BB section view.

[0033] Fig.10 It is a three-dimensional schematic diagram of a labor-saving lever structure.

[0034] Explanation of the reference numerals: 1- bracket, 2- hoisting drum, 3- planetary gear reducer, 4- electric motor, 5- effort-saving lever structure, 6- electric drive unit, 7- power arm, 8- resistance arm, 9- support, 10- rotating shaft, 11- direct pin, 12- inner gear ring, 13- radial limiting hole, 14- output end, 15- offset structure, 16- elastic member, 17- output shaft, 18- supporting plane, 19- guide arc surface, 20- vertical surface, 21- guide hole, 22- first limiting ring, 23- top surface, 24- second limiting ring, 25- first-stage inner gear ring, 26- second-stage inner gear ring, 27- decorative end cover, 28- shell, 29- hinge shaft, 30- cover shell. DETAILED DESCRIPTION

[0035] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The embodiments described below are for example only, and those skilled in the art may think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0036] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 understood as limiting the present invention.

[0037] like Figures 1 to 10 As shown, the present invention provides an electric winch with radial electric clutch, including a bracket 1, a hoisting drum 2 installed in the bracket 1, a planetary gear reducer 3 and an electric motor 4 connected to the bracket 1, the electric motor 4 is transmission-connected to the planetary gear reducer 3, the planetary gear reducer 3 is connected to the hoisting drum 2, a labor-saving lever structure 5 is provided in the circumferential direction of the planetary gear reducer 3, a power arm 7 of the labor-saving lever structure 5 is connected to an electric drive unit 6 on one side, a resistance arm 8 of the labor-saving lever structure 5 is hinged with a radially movable straight pin 11 on one side, the straight pin 11 and a radial limiting hole 13 of an inner gear ring 12 of the planetary gear reducer 3, and the electric drive unit 6 is provided with a retractable output end 14, a counter structure 15 is provided between one side of the power arm 7 and the output end 14, and the straight pin 11 is connected with an elastic member 16, and the elastic member 16 is used to drive the straight pin 11 to insert into the radial limiting hole 13.

[0038] Through the abutting structure 15, when separation is required, the output end 14 extends out and abuts against one side of the power arm 7 to push the power arm 7, thereby driving the resistance arm 8 to tilt up, and the tilting of the resistance arm 8 drives the straight pin 11 to move radially to pull out the radial limiting hole 13, thereby completing the separation, and the elastic member 16 is compressed or stretched by the straight pin 11 to accumulate elastic potential energy; when re-combination is required, the output end 14 retracts to release the limitation on the power arm 7, and under the action of the elastic potential energy, the straight pin 11 moves in the opposite direction to push back the resistance arm 8, thereby driving the power arm 7 to reset. If the straight pin 11 is aligned with the radial limiting hole 13 at this time If they are aligned, the straight pin 11 will be inserted into the radial limit hole 13 to achieve re-alignment. If the straight pin 11 and the radial limit hole 13 are not aligned at this time, the output end 14 will continue to retract and move further away from the power arm 7 to release the limit. The front end of the straight pin 11 elastically rests on the outer circumferential surface of the inner gear ring 12 under the action of elastic potential energy. Then, when the inner gear ring 12 rotates to the point where the straight pin 11 and the radial limit hole 13 are relatively aligned, under the action of the elastic potential energy, the straight pin 11 will be inserted into the radial limit hole 13 to achieve re-alignment. At the same time, the release of the limit allows the power arm 7 to be reset without obstacles.

[0039] like Figure 4As shown, the electric drive unit 6 adopts an electromagnetic push rod, and the telescopic end of the electromagnetic push rod serves as the output end 14. The telescopic output shaft 17 of the electromagnetic push rod is driven by electromagnetic force, and the telescopic output shaft 17 is fast. When applied in the present disclosure, the electromagnetic push rod can take advantage of its fast response and solve the problem of insufficient force and difficulty in pulling out, thereby greatly improving reliability. In addition, due to the setting of the labor-saving lever structure 5 in the present disclosure, the electromagnetic push rod can be smaller in size.

[0040] In some embodiments, Figure 4 As shown, the labor-saving lever structure 5 includes a support 9, a rotating shaft 10 is provided on the support 9, the power arm 7 and the resistance arm 8 are located on both sides of the rotating shaft 10, and the straight pin 11 is hinged to the end of the resistance arm 8 away from the rotating shaft 10 through the hinge shaft 29. In this way, the labor-saving lever structure 5 can amplify the up-and-down movement stroke of the power arm 7, so that the resistance arm 8 has a sufficient up-and-down movement stroke, and therefore, the up-and-down movement stroke of the power arm 7 can be shorter, which is conducive to reducing the telescopic range of the output end 14.

[0041] Of course, other labor-saving lever structures 5 may also be used, and any labor-saving lever structure 5 applicable to the present disclosure may be applied to the present disclosure.

[0042] like Figure 3 , 4 As shown, a force-saving lever structure 5 is provided on the top of the planetary gear reducer 3, a straight pin 11 is vertically arranged in the up-down direction, an output end 14 is provided by an output shaft 17, and the output shaft 17 is also vertically arranged in the up-down direction. In this way, the force application direction is more optimized.

[0043] In some embodiments, Figure 4 , 5As shown in 10, a support plane 18 is provided on the upper side of one end of the power arm 7 away from the support 9 of the force-saving lever structure 5, and the output end 14 is located on the upper side of the support plane 18. The output end 14 cooperates with the support plane 18 up and down, and a guide arc surface 19 is provided at the end of the one end. When separated, the guide arc surface 19 moves upward with the power arm 7 and is located below the lower side of the output end 14. When reunited, the output end 14 moves downward and first abuts against the guide arc surface 19, and under the guidance of the guide arc surface 19, it resumes cooperation with the support plane 18, thereby completely reuniting. In this way, on the one hand, since the electromagnetic push rod extends very quickly, the setting of the guide arc surface 19 is conducive to the mutual cooperation between the output end 14 and the power arm 7, which is conducive to improving reliability and reducing wear. On the other hand, the setting of the support plane 18 is conducive to the good cooperation between the output end 14 and the power arm 7. The output end 14 forms a stable and reliable support limit for the power arm 7, so that the direct pin 11 maintains a stable position in the pulled-out state. Although the elastic member 16 is in a state of accumulating elastic potential energy at this time, the above-mentioned improvement enables the direct pin 11 to still maintain a stable position in the pulled-out state.

[0044] In some embodiments, Figure 4 , 5 As shown in FIG. 10 , a vertical surface 20 is provided on one side of the support plane 18 close to the support seat 9, and the vertical surface 20 forms an L-shaped structure with the support plane 18. In this way, since the electromagnetic push rod extends very quickly, it has a certain impact on the power arm 7. The setting of the L-shaped structure makes it easier for the output end 14 and the L-shaped structure to quickly form a stable matching structure after the electromagnetic push rod is extended into place, thereby reducing the impact on the labor-saving lever structure 5.

[0045] In some embodiments, Figure 6 , 7 As shown in Figures 9 and 10, a guide hole 21 is provided in the housing 28 of the planetary gear reducer 3, and the straight pin 11 is guided and matched with the guide hole 21. In this way, on the one hand, the guide hole 21 can form a guide support for the straight pin 11, so that the plugging and unplugging action of the straight pin 11 and the radial limiting hole 13 is more stable and reliable, and the reliability is improved. On the other hand, it has a stronger limiting strength for the inner gear ring 12, and the safety is improved.

[0046] In some embodiments, Figure 4 , 5 As shown in FIG. 10 , the straight pin 11 is provided with a first limiting ring 22, and the first limiting ring 22 cooperates with the top surface 23 of the housing 28 to limit the straight pin 11 for the first time, and the first limiting is used to limit the straight pin 11 when re-combining. In this way, the structure is simple and convenient for production and manufacturing.

[0047] In some embodiments, Figure 4 , 5As shown in FIG. 10 , the straight pin 11 is provided with a second limiting ring 24, and an elastic member 16 is provided on the upper side of the straight pin 11 located at the second limiting ring 24, the lower end of the elastic member 16 abuts against the second limiting ring 24, the upper end of the elastic member 16 is fixed, and the elastic member 16 pushes the straight pin 11 downward through the second limiting ring 24. In this way, the structure is simple, and the force direction of the elastic member 16 is along the axial direction of the straight pin 11, so the force direction is optimized.

[0048] In this example, the force-saving lever structure 5 is provided with a protective cover 30 , and the elastic member 16 is disposed in the cover 30 . The upper end of the elastic member 16 abuts against the inner wall of the cover 30 to be fixed.

[0049] When re-combining, the straight pin 11 is still affected by the elastic force of the elastic member 16 and does not loosen, that is, in the re-combining state, the elastic member 16 is set to a pre-compressed state, and when separating, the elastic member 16 will be further compressed. This is conducive to improving reliability.

[0050] In some embodiments, Figure 2 , 4 5, the planetary gear reducer 3 includes a first-stage inner gear ring 25 and a second-stage inner gear ring 26. The second-stage inner gear ring 26 is provided with a radial limiting hole 13. The second-stage inner gear ring 26 is arranged near the side of the hoisting drum 2. The direct pin 11 is arranged in the circumference of the second-stage inner gear ring 26 and is in contact with the radial limiting hole 13 of the second-stage inner gear ring 26. In this way, there is more space to set the labor-saving lever structure 5 and the electric drive unit 6.

[0051] In some embodiments, Figure 4 , 5 As shown, the second-stage inner gear ring 26 is provided with a plurality of circumferentially arranged radial limit holes 13, thereby increasing the density of the radial limit holes 13, which has great advantages for the situation where the straight pin 11 and the radial limit holes 13 are not aligned, that is, the front end of the straight pin 11 elastically presses against the outer circumferential surface of the inner gear ring 12 under the action of elastic potential energy, and the inner gear ring 12 can be rotated at a smaller angle to achieve relative alignment of the straight pin 11 and the radial limit holes 13.

[0052] The planetary gear reducer 3 drives the hoisting drum 2 through multiple stages of reduction, thereby achieving torque amplification and having a greater load capacity. The first-stage internal gear ring 25 is used for the first stage reduction, and the second-stage internal gear ring 26 is used for the second stage reduction.

[0053] For a better appearance, a decorative end cover 27 is connected to the rear end of the housing 28 .

[0054] When understanding the present invention, if necessary, the above structure can refer to other embodiments / attached Figure 1 And understand, no further elaboration here.

[0055] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be thought of by any person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An electric winch with radial electric clutch, comprising a bracket (1), a hoisting drum (2) installed in the bracket (1), a planetary gear reducer (3) connected to the bracket (1) and an electric motor (4), wherein the electric motor (4) is transmission-connected to the planetary gear reducer (3), and the planetary gear reducer (3) is connected to the hoisting drum (2), characterized in that: A labor-saving lever structure (5) is provided in the circumferential direction of the planetary gear reducer (3), one side of the power arm (7) of the labor-saving lever structure (5) is connected to the electric drive unit (6), one side of the resistance arm (8) of the labor-saving lever structure (5) is hinged with a radially movable straight pin (11), the straight pin (11) and a radial limiting hole (13) of an inner gear ring (12) of the planetary gear reducer (3), and the electric drive unit (6) is provided with a retractable output end (14), a counter structure (15) is provided between one side of the power arm (7) and the output end (14), and the straight pin (11) is connected with an elastic member (16), and the elastic member (16) is used to drive the straight pin (11) to be inserted into the radial limiting hole (13); Through the abutting structure (15), when separation is required, the output end (14) extends out and abuts against one side of the power arm (7) to push the power arm (7), thereby driving the resistance arm (8) to tilt up, and the tilting of the resistance arm (8) drives the straight pin (11) to move radially to pull out the radial limiting hole (13), thereby completing the separation, and the elastic member (16) is compressed or stretched by the straight pin (11) to accumulate elastic potential energy; when re-combination is required, the output end (14) retracts to release the limitation on the power arm (7), and under the action of the elastic potential energy, the straight pin (11) moves in the opposite direction to push back the resistance arm (8), thereby driving the power arm (7) to reset, if at this time the straight pin (11) and the radial limiting hole (13) are in contact with each other, the straight pin (11) and the radial limiting hole (13) are in contact with each other, and ... 3) When the straight pin (11) and the radial limiting hole (13) are relatively aligned, the straight pin (11) is smoothly inserted into the radial limiting hole (13) to achieve re-engagement. If the straight pin (11) and the radial limiting hole (13) are not aligned at this time, the output end (14) continues to retract and moves further away from the power arm (7) to release the limit. The front end of the straight pin (11) elastically presses against the outer peripheral surface of the inner gear ring (12) under the action of elastic potential energy. Then, when the inner gear ring (12) rotates until the straight pin (11) and the radial limiting hole (13) are relatively aligned, under the action of the elastic potential energy, the straight pin (11) will smoothly insert into the radial limiting hole (13) to achieve re-engagement. At the same time, the release of the limit allows the power arm (7) to be reset without obstacles.

2. The electric winch with radial electric clutch according to claim 1, characterized in that: A force-saving lever structure (5) is provided on the top of the planetary gear reducer (3), a straight pin (11) is vertically arranged in the up-down direction, an output end (14) is provided by an output shaft (17), and the output shaft (17) is also vertically arranged in the up-down direction.

3. The electric winch with radial electric clutch according to claim 1 or 2, characterized in that: A support plane (18) is provided on the upper side of one end of the power arm (7) away from the support (9) of the force-saving lever structure (5), and the output end (14) is located on the upper side of the support plane (18). The output end (14) and the support plane (18) are matched up and down, and a guide arc surface (19) is provided at the end of the one end. When separating, the guide arc surface (19) moves upward with the power arm (7) and is located below the lower side of the output end (14). When reuniting, the output end (14) moves downward and first abuts against the guide arc surface (19), and under the guidance of the guide arc surface (19), it resumes the match with the support plane (18), thereby completely reuniting.

4. The electric winch with radial electric clutch according to claim 3, characterized in that: A vertical surface (20) is provided on one side of the support plane (18) close to the support seat (9), and the vertical surface (20) and the support plane (18) form an L-shaped structure.

5. The electric winch with radial electric clutch according to claim 1 or 2, characterized in that: A guide hole (21) is provided in the housing (28) of the planetary gear reducer (3), and the straight pin (11) is guided and matched with the guide hole (21).

6. The electric winch with radial electric clutch according to claim 5, characterized in that: The straight pin (11) is provided with a first limiting ring (22), and the first limiting ring (22) cooperates with the housing (28) to perform a first limiting operation on the straight pin (11), and the first limiting operation is used to limit the straight pin (11) during re-combination.

7. The electric winch with radial electric clutch according to claim 5, characterized in that: The straight pin (11) is provided with a second limiting ring (24); an elastic member (16) is provided on the upper side of the straight pin (11) located on the second limiting ring (24); the lower end of the elastic member (16) abuts against the second limiting ring (24); the upper end of the elastic member (16) is fixed; and the elastic member (16) pushes the straight pin (11) downward to move via the second limiting ring (24).

8. The electric winch with radial electric clutch according to claim 7, characterized in that: When re-combined, the straight pin (11) is still affected by the elastic force of the elastic member (16) and does not become loose.

9. The electric winch with radial electric clutch according to claim 1 or 2, characterized in that: The electric drive unit (6) adopts an electromagnetic push rod, and the telescopic end of the electromagnetic push rod serves as an output end (14).

10. The electric winch with radial electric clutch according to claim 1, characterized in that: The planetary gear reducer (3) includes a second-stage inner gear ring (26), the second-stage inner gear ring (26) serves as the inner gear ring (12), the second-stage inner gear ring (26) is provided with a radial limiting hole (13), the second-stage inner gear ring (26) is arranged close to one side of the winch drum (2), and the direct pin (11) is arranged in the circumference of the second-stage inner gear ring (26) and is aligned with the radial limiting hole (13) of the second-stage inner gear ring (26).

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