Lever type electric clutch electric capstan

Abstract

The invention provides a lever type electric clutch electric capstan, an extension hole (13) is formed in the outer side of an input side planetary gear set (7) of the electric capstan, a transmission shaft (6) penetrates through a winding drum (3) and a planetary gear reducer (4) and extends / retracts through the extension hole (13) to achieve the clutch purpose, and the lever type electric clutch electric capstan further comprises a lever (15) and an electric push rod (16), the lever (15) is located on the outer side of the extending-out hole (13) and arranged in the radial direction, a resisting arm (17) of the lever (15) at least extends to one side of the extending-out hole (13) so as to exert axial force on the transmission shaft (6), and a power arm (18) of the lever (15) is detachably connected with the output end (11) of the electric push rod (16) in an abutting mode or connected with the output end (11) of the electric push rod (16). The output end (11) of the electric push rod (16) drives the lever (15) to swing so as to realize extension and / or retraction of the transmission shaft (6); the electric capstan of the lever type electric clutch has high reliability and stability.

Description

TECHNICAL FIELD

[0001] The present application relates to the winch technical field, in particular to a lever type electric clutch electric winch. BACKGROUND

[0002] At present, there is an electric winch, which is generally used on vehicles, such as off-road vehicles, sand vehicles, ships, etc. Of course, in addition to being applied to vehicles, it can also be used in other places where it is needed, that is, the application scene is relatively wide, and it is suitable for many occasions that require traction function. Therefore, the electric winch needs to have high reliability and stability.

[0003] In order to further improve the convenience of use, the current electric winch proposes an electric clutch electric winch, which needs to set up an electric structure. Although the convenience purpose is achieved, how to improve the reliability and stability still needs further research. SUMMARY

[0004] The present application provides a lever type electric clutch electric winch, which is beneficial to improve the reliability and stability.

[0005] In order to achieve the above purpose, the embodiments of the present application adopt the following technical solutions:

[0006] A lever type electric clutch electric winch, comprising a first electric motor, a bracket, a winding drum and a planetary gear reducer, the first electric motor and the planetary gear reducer are respectively installed on both sides of the bracket, the winding drum is rotatably connected between the bracket, the first electric motor and the planetary gear reducer are connected through a transmission shaft, the transmission shaft passes through the winding 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 away from the bracket, 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 winding drum to rotate, the electric winch is provided with an extension hole outside the input side planetary gear set, the transmission shaft passes through the winding drum, the planetary gear reducer and extends / retracts through the extension hole to achieve the purpose of clutching, further comprising a lever type electric structure for driving the transmission shaft to extend / retract, the lever type electric structure comprises a lever and an electric push rod, the lever is located outside the extension hole and is arranged radially, the resistance arm of the lever extends to at least one side of the extension hole to realize the operation of applying axial force to the transmission shaft, the power arm of the lever is detachably abuttingly connected or connected together with the output end of the electric push rod, the output end of the electric push rod drives the lever to swing to realize the extension and / or retraction of the transmission shaft.

[0007] In some embodiments, the output end is provided with an axially moving pushing part, the power arm of the lever is arranged axially parallel to the pushing part to achieve a detachable abutting connection, when the pushing part pushes outward, the power arm is pushed to swing outward, and the resistance arm swings inward, so as to push the extended transmission shaft back to achieve the separation of the clutch, when the pushing part resets inward, the pushing part does not exert a pulling force on the power arm, but relies on the extension of the transmission shaft to push the resistance arm to swing outward to achieve the inward swing reset of the power arm.

[0008] In some embodiments, the pushing part is provided with a radial matching groove, and the power arm matches the radial matching groove, and the side surface of the radial matching groove limits the power arm.

[0009] In some embodiments, the radial matching groove is provided with an arc-shaped protrusion between the radial matching groove and the power arm, and the arc-shaped protrusion is used to reduce the friction between the power arm and the matching groove when the pushing part pushes the power arm to swing outward.

[0010] In some embodiments, the electric push rod comprises a second electric motor and a push rod, and the second electric motor and the push rod are arranged transversely parallel.

[0011] In some embodiments, the housing of the planetary gear reducer is provided with a mounting seat in the circumferential direction, and the electric push rod is mounted on the mounting seat.

[0012] In some embodiments, the extension hole is provided with a sealing ring, and the sealing ring is sleeved on the transmission shaft to play a sealing role.

[0013] In some embodiments, the transmission shaft is connected with a spring, when the output end of the electric push rod drives the lever to swing to drive the transmission shaft to retract, the spring accumulates elastic potential energy, and when the output end of the electric push rod reversely resets, the spring releases the elastic potential energy to drive the transmission shaft to extend and reset.

[0014] In some embodiments, a connecting shaft is arranged between the input end of the winding drum and the output end of the output planetary gear set, one end of the connecting shaft is axially slidably sleeved with the input end, the other end of the connecting shaft is axially slidably sleeved with the output end, and the input end and the output end are connected in a clutchable transmission manner through the axially slidable sleeve of the connecting shaft; the connecting shaft is also sleeved on the transmission shaft, the transmission shaft and the connecting shaft can rotate relative to each other, and when the clutch is needed, the transmission shaft drives the connecting shaft to axially slide.

[0015] In some embodiments, a first protective cover and a second protective cover are further included, the first protective cover covers the extension hole, the transmission shaft and the lever as an end cover, the power arm of the lever extends radially outside the first protective cover, and the second protective cover covers the extended part of the power arm and also covers the electric push rod to provide protection.

[0016] Compared with the prior art, the electric winch has the following advantages:

[0017] In the present disclosure, the electric winch is provided with an extension hole outside the input row planetary gear set, the transmission shaft passes through the winding drum, the planetary gear reducer and extends / contracts through the extension hole to achieve the purpose of clutching, and further comprises a lever type electric structure for driving the transmission shaft to extend / contract, the lever type electric structure comprises a lever and an electric push rod, the lever is located outside the extension hole and is arranged in the radial direction, the resistance arm of the lever extends to at least one side of the extension hole to achieve the operation of applying an axial force to the transmission shaft, the power arm of the lever is detachably abutted or connected with the output end of the electric push rod, and the output end of the electric push rod drives the lever to swing to achieve the extension and / or contraction of the transmission shaft, so that, on the one hand, the electric winch has greater pushing force, so that the clutching is reliable and stable, on the other hand, the electric push rod is more convenient to arrange in structure, and on the other hand, the extension hole is provided, which is beneficial to reducing the influence on the inside of the planetary gear reducer. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a perspective view of the electric winch with lever type electric clutch.

[0019] Figure 2 It is a perspective view of the electric winch with lever type electric clutch after removing the protective cover.

[0020] Figure 3 It is a top view of Figure 2 .

[0021] Figure 4 It is a sectional view along A-A direction.

[0022] Figure 5 It is a perspective view mainly showing the inside.

[0023] Figure 6 It is a perspective view of the electric winch with lever type electric clutch after removing the first protective cover and the lever.

[0024] Figure 7 It is a perspective view of the lever.

[0025] Explanation of reference signs, 1-first electric motor, 2-bracket, 3-winding drum, 4-planetary gear reducer, 5-stand, 6-transmission shaft, 7-input side planetary gear set, 8-input sun gear, 9-output side planetary gear set, 10-input end, 11-output end, 12-connection shaft, 13-protruding hole, 14-lever type electric structure, 15-lever, 16-electric push rod, 17-resistance arm, 18-power arm, 19-pushing part, 20-radial matching groove, 21-side surface, 22-arc-shaped protrusion, 23-second electric motor, 24-push rod, 25-housing, 26-mounting seat, 27-sealing ring, 28-spring, 29-first protective cover, 30-second protective cover, 31-first retainer ring, 32-second retainer ring, 33-third retainer ring, 34-transmission ring, 35-arc-shaped recess. DETAILED DESCRIPTION

[0026] The following description is presented to enable any person skilled in the art to practice the present application as claimed. The embodiments disclosed in the following description and claims are only exemplary and are not intended to exhaustively describe all possible implementations of the present application. The present application defined in the following description and claims is not limited to the embodiments disclosed herein, but rather the embodiments are provided for illustrative purposes only. It is contemplated that those skilled in the art will be able to devise other and further embodiments, which, although not explicitly described herein, fall within the spirit and scope of the present application.

[0027] Those skilled in the art will understand that, in the disclosure of the present application, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as limiting the present application.

[0028] The present disclosure provides a lever type electric clutch electric winch, comprising a first electric motor 1, a bracket 2, a winding drum 3 and a planetary gear reducer 4, the first electric motor 1 and the planetary gear reducer 4 are respectively installed on both sides of the bracket 2, the winding drum 3 is rotatably connected between the bracket 2, the first electric motor 1 and the planetary gear reducer 4 are connected through a transmission shaft 6, the transmission shaft 6 passes through the winding drum 3 to reach an input side planetary gear set 7 of the planetary gear reducer 4, and is in transmission connection with an input sun gear 8 of the input side planetary gear set 7, the input side planetary gear set 7 is located away from the bracket 2, and a planetary gear set of the planetary gear reducer 4 close to the bracket 2 is an output side planetary gear set 9 for driving the winding drum 3 to rotate, the electric winch is provided with an extension hole 13 outside the input side planetary gear set 7, the transmission shaft 6 passes through the winding drum 3, the planetary gear reducer 4 and extends / contracts through the extension hole 13 to realize the purpose of clutching, and further comprising a lever type electric structure 14 for driving the transmission shaft 6 to extend / contract, the lever type electric structure 14 comprises a lever 15 and an electric push rod 16, the lever 15 is located outside the extension hole 13 and is arranged in a radial direction, a resistance arm 17 of the lever 15 extends to at least one side of the extension hole 13 to realize the operation of applying an axial force to the transmission shaft 6, a power arm 18 of the lever 15 is in separable abutting connection or connected together with an output end 11 of the electric push rod 16, and the output end 11 of the electric push rod 16 drives the lever 15 to swing to realize the extension and / or contraction of the transmission shaft 6.

[0029] In this example, the transmission shaft 6 is connected with a spring 28, when the output end 11 of the electric push rod 16 drives the lever 15 to swing to drive the transmission shaft 6 to contract, the spring 28 accumulates elastic potential energy, and when the output end 11 of the electric push rod 16 is reset in reverse, the spring 28 releases the elastic potential energy to drive the transmission shaft 6 to extend and reset.

[0030] The spring 28 can accumulate elastic potential energy by stretching or compressing, as shown in Figure 4 、 5 In this example, when the output end 11 of the electric push rod 16 drives the lever 15 to swing to drive the transmission shaft 6 to contract, the spring 28 is compressed by a first blocking ring 31 to accumulate elastic potential energy, and when the output end 11 of the electric push rod 16 is reset in reverse, the spring 28 expands axially to release the elastic potential energy to drive the transmission shaft 6 to extend and reset.

[0031] In some embodiments, as shown in Figure 2 、 4As shown in FIG. 6, the output end 11 is provided with an axially movable pushing part 19, and the power arm 18 of the lever 15 is arranged in parallel with the pushing part 19 in the axial direction to achieve a detachable abutting connection. When the pushing part 19 is pushed outward, the pushing part 19 can push the power arm 18 to swing outward, and the resistance arm 17 swings inward, thereby pushing the extended transmission shaft 6 back to achieve the separation of the clutch. When the pushing part 19 is reset inward, the pushing part 19 does not apply a pulling force to the power arm 18, but relies on the pushing of the transmission shaft 6 to push the resistance arm 17 to swing outward to achieve the inward swing reset of the power arm 18. In this way, since the extended transmission shaft 6 is pushed back to achieve the separation of the clutch, the pushing part 19 can push the power arm 18 to swing outward when it is pushed outward, and the process is not prone to jamming. When the reset occurs, the electric push rod 16 will not cause jamming, and the electric push rod 16 itself will not be lost. For example, when the spline on the connecting shaft 12 is not aligned with the spline hole of the output end 11 of the output shaft planetary gear set 9, jamming will occur. At this time, since the electric push rod 16 will not cause jamming, the winch drum 3 can still be turned through a small angle to be re-aligned, thereby facilitating reset.

[0032] In some embodiments, as shown in FIG. 6, the pushing part 19 is provided with a radial matching groove 20, the power arm 18 matches the radial matching groove 20, and the side surface 21 of the radial matching groove 20 limits the power arm 18. In this way, the pushing and resetting are more reliable. Figure 2 、 3 Further, as shown in FIG. 6, the radial matching groove 20 is provided with an arc-shaped protrusion 22 between the radial matching groove 20 and the power arm 18. When the pushing part 19 pushes the power arm 18 to swing outward, the arc-shaped protrusion 22 is used to reduce the friction between the power arm 18 and the matching groove. In order to achieve positioning after reset, as shown in FIG. 6, the power arm 18 is provided with an arc-shaped recess 35 matched with the arc-shaped protrusion 22. As shown in FIG. 6, it is the positioning state after reset.

[0033] Further, as shown in FIG. 6, the radial matching groove 20 is provided with an arc-shaped protrusion 22 between the radial matching groove 20 and the power arm 18. When the pushing part 19 pushes the power arm 18 to swing outward, the arc-shaped protrusion 22 is used to reduce the friction between the power arm 18 and the matching groove. In order to achieve positioning after reset, as shown in FIG. 6, the power arm 18 is provided with an arc-shaped recess 35 matched with the arc-shaped protrusion 22. As shown in FIG. 6, it is the positioning state after reset. Figure 4 、 6 In some embodiments, as shown in FIG. 6, the electric push rod 16 includes a second electric motor 23 and a push rod 24, and the second electric motor 23 and the push rod 24 are arranged in parallel in the transverse direction. In this way, the structure is more compact. Figure 6 Figure 4 In some embodiments, as shown in FIG. 6, the cover 25 of the planetary gear reducer 4 is provided with a mounting seat 26 in the circumferential direction, and the electric push rod 16 is mounted on the mounting seat 26. In this way, the installation and fixation are more reliable.

[0034] In some embodiments, as shown in FIG. 6, the cover 25 of the planetary gear reducer 4 is provided with a mounting seat 26 in the circumferential direction, and the electric push rod 16 is mounted on the mounting seat 26. In this way, the installation and fixation are more reliable. Figure 2 3 In some embodiments, as shown in FIG. 6, the cover 25 of the planetary gear reducer 4 is provided with a mounting seat 26 in the circumferential direction, and the electric push rod 16 is mounted on the mounting seat 26. In this way, the installation and fixation are more reliable.

[0035] In some embodiments, as shown in FIG. 6, the cover 25 of the planetary gear reducer 4 is provided with a mounting seat 26 in the circumferential direction, and the electric push rod 16 is mounted on the mounting seat 26. In this way, the installation and fixation are more reliable. Figure 2

[0036] ​​​In some embodiments, as shown in Figure 2 The end surface of the cover 25 is provided with a support 5, and the lever 15 is rotatably connected to the support 5.

[0037] In some embodiments, as shown in Figure 2 , 4 The extension hole 13 is provided with a sealing ring 27, which is sleeved on the transmission shaft 6 to play a sealing role. In this way, the planetary gear reducer 4 is protected, and failure is avoided, thereby improving reliability and stability.

[0038] In some embodiments, as shown in Figure 4 , 5 The input end 10 of the winding drum 3 is provided with a connecting shaft 12, one end of which is axially and slidably sleeved with the input end 10, and the other end of which is axially and slidably sleeved with the output end 11. The input end 10 and the output end 11 are axially and slidably connected through the connecting shaft 12. The connecting shaft 12 is also sleeved on the transmission shaft 6, and the transmission shaft 6 and the connecting shaft 12 can rotate relative to each other. When the clutch is needed, the transmission shaft 6 drives the connecting shaft 12 to axially slide. In this way, the transmission performance and the clutch performance are better.

[0039] In this example, the connecting shaft 12 is provided with splines, and the input end 10 and the output end 11 are provided with spline holes. The second stop ring 32 and the third stop ring 33 are respectively arranged on the front and back sides of the connecting shaft 12, and are axially limited on the transmission shaft 6. When the transmission shaft 6 extends / retracts, the second stop ring 32 and the third stop ring 33 drive the connecting shaft 12 to axially move, thereby achieving the purpose of clutching.

[0040] In some embodiments, as shown in Figure 4 , 5 The input end 10 is welded with a transmission ring 34, which is axially and slidably sleeved with one end of the connecting shaft 12. After this design, it is beneficial to simplify production and manufacturing, improve production efficiency and reduce production cost. That is, the winding drum 3 can be manufactured according to the prior art, and then a transmission ring 34 is welded on the winding drum 3 to realize the scheme of the present disclosure. Especially when the spline hole design is adopted, it is much more convenient to process the spline hole on the transmission ring 34 than to process the spline hole on the winding drum 3.

[0041] As shown in Figure 4 The winding drum 3 is sleeved and welded with the transmission ring 34 on one side of the output side planetary gear set 9, thereby having better connection strength. Since the strength is sufficient, it is beneficial to reduce the axial size of the transmission ring 34.

[0042] Although the transmission shaft 6 shown in the drawings is a regular hexagonal shaft, since the hole of the connecting shaft 12 and the transmission shaft 6 is a cylindrical hole, the two can rotate relative to each other, and there is a gap between the transmission shaft 6 and the connecting shaft 12, and the rotation of the two does not affect each other.

[0043] In some embodiments, as shown in Figure 1 、 6 The first protective cover 29 covers the extension hole 13, the transmission shaft 6 and the lever 15 as an end cover, the power arm 18 of the lever 15 extends radially outside the first protective cover 29, the second protective cover 30 covers the extended part of the power arm 18, and also covers the electric push rod 16 to provide protection. In this way, the electric push rod 16 can be better protected in the assembly or later maintenance of the electric push rod 16, which is conducive to the reliability and stability of the product.

[0044] In understanding the present application, the above structure can refer to other embodiments / attachments Figure 1 and it is understood that they are not described here.

[0045] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can think of changes or replacements within the technical scope disclosed by 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 lever-type electric clutch, comprising a first electric motor (1), a bracket (2), a winch drum (3), and a planetary gear reducer (4), wherein the first electric motor (1) and the planetary gear reducer (4) are respectively mounted on both sides of the bracket (2), the winch drum (3) is rotatably connected between the brackets (2), the first electric motor (1) and the planetary gear reducer (4) are connected via a drive shaft (6), the drive shaft (6) passes through the winch drum (3) to the input-side planetary gear set (7) of the planetary gear reducer (4), and is drively connected to the input sun gear (8) of the input-side planetary gear set (7), the input-side planetary gear set (7) is located on the side away from the bracket (2), and the planetary gear set of the planetary gear reducer (4) on the side closer to the bracket (2) is the output-side planetary gear set (9) for driving the winch drum (3) to rotate, characterized in that, The electric winch has an extension hole (13) on the outside of the planetary gear set (7) on the input side. The drive shaft (6) passes through the winch drum (3) and the planetary gear reducer (4) and extends / retracts through the extension hole (13) to achieve the purpose of clutch engagement. It also includes a lever-type electric structure (14) that drives the drive shaft (6) to extend / retract. The lever-type electric structure (14) includes a lever (15) and an electric push rod (16). The lever (15) is located outside the extension hole (13) and is arranged radially. The resistance arm (17) of the lever (15) extends at least to one side of the extension hole (13) to achieve the operation of applying axial force to the drive shaft (6). The power arm (18) of the lever (15) is detachably connected to or connected to the output end (11) of the electric push rod (16). The output end (11) of the electric push rod (16) drives the lever (15) to swing to achieve the extension and / or retraction of the drive shaft (6).

2. The electric winch with lever-type electric clutch according to claim 1, characterized in that, The output end (11) is provided with an axially movable push part (19). The power arm (18) of the lever (15) and the push part (19) are arranged side by side along the axial direction to achieve a separable abutting connection. When the push part (19) pushes outward, it can push the power arm (18) to swing outward, while the resistance arm (17) swings inward, thereby pushing the extended transmission shaft (6) back to achieve the separation of the clutch. When the push part (19) resets inward, the push part (19) does not apply a pulling force to the power arm (18), but relies on the extension of the transmission shaft (6) to push the resistance arm (17) to swing outward to achieve the reset of the power arm (18) swinging inward.

3. The electric winch with lever-type electric clutch according to claim 2, characterized in that, The push unit (19) is provided with a radial mating groove (20), and the power arm (18) is mated with the radial mating groove (20). The side (21) of the radial mating groove (20) limits the power arm (18).

4. The electric winch with lever-type electric clutch according to claim 3, characterized in that, The radial mating groove (20) has an arc-shaped protrusion (22) between the radial mating groove (20) and the power arm (18). When the pushing part (19) pushes the power arm (18) to swing outward, the arc-shaped protrusion (22) is used to reduce the friction between the power arm (18) and the mating groove.

5. The electric winch with lever-type electric clutch according to claim 1, characterized in that, The electric actuator (16) includes a second electric motor (23) and a push rod (24), which are arranged side by side in the transverse direction.

6. The electric winch with lever-type electric clutch according to claim 1 or 5, characterized in that, The planetary gear reducer (4) has a mounting base (26) circumferentially provided on the cover (25), and the electric push rod (16) is mounted on the mounting base (26).

7. The electric winch with lever-type electric clutch according to claim 1, characterized in that, The protruding hole (13) is provided with a sealing ring (27), which is fitted on the drive shaft (6) to perform a sealing function.

8. The electric winch with lever-type electric clutch according to claim 1 or 2, characterized in that, The drive shaft (6) is connected to a spring (28). When the output end (11) of the electric push rod (16) drives the lever (15) to swing and drive the drive shaft (6) to retract, the spring (28) accumulates elastic potential energy. When the output end (11) of the electric push rod (16) returns to its original position, the spring (28) releases elastic potential energy to drive the drive shaft (6) to extend and return to its original position.

9. The electric winch with lever-type electric clutch according to claim 1 or 2, characterized in that, A connecting shaft (12) is provided between the input end (10) of the winch drum (3) and the output end (11) of the output planetary gear set (9). One end of the connecting shaft (12) is axially slidably connected to the input end (10), and the other end of the connecting shaft (12) is axially slidably connected to the output end (11). The input end (10) and the output end (11) are connected by the axially slidable connection of the connecting shaft (12) to achieve a clutchable transmission connection. The connecting shaft (12) is also sleeved on the transmission shaft (6). The transmission shaft (6) and the connecting shaft (12) can rotate relative to each other. When clutching is required, the transmission shaft (6) drives the connecting shaft (12) to slide axially.

10. The electric winch with lever-type electric clutch according to claim 1, characterized in that, It also includes a first protective cover (29) and a second protective cover (30). The first protective cover (29) serves as an end cap covering the protrusion hole (13), the drive shaft (6), and the lever (15). The power arm (18) of the lever (15) extends radially outside the first protective cover (29). The second protective cover (30) covers the protruding portion of the power arm (18) and also covers the electric push rod (16) for protection.

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