Lever type electric clutch electric capstan

Abstract

The utility model 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 utility model relates to the technical field of winches, in particular to an electric winch with a lever-type electric clutch. Background Art

[0002] At present, there is an electric winch, which 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 it is needed, that is, the application scenario is relatively wide, and it is suitable for many occasions that require traction functions. Therefore, the electric winch needs to have high reliability and stability.

[0003] In order to further improve the convenience of use of the current electric winch, an electric winch with electric clutch is proposed, which requires the installation of an electric structure. Although the purpose of convenience is achieved, how to improve reliability and stability still needs further research. Utility Model Content

[0004] The utility model provides an electric winch with a lever-type electric clutch, which is beneficial to improving reliability and stability.

[0005] In order to achieve the above object, the embodiment of the utility model adopts the following technical solution:

[0006] A lever-type electric clutch electric winch, comprising a first electric motor, a bracket, a hoisting drum and a planetary gear reducer, wherein the first electric motor and the planetary gear reducer are respectively mounted on both sides of the bracket, the hoisting drum is rotationally connected between the brackets, the first electric motor and the planetary gear reducer are connected via 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 transmission-connected with the input sun gear of the input side planetary gear set, the input side planetary gear set is located on the side away from the bracket, and the planetary gear set of the planetary gear reducer close to the bracket is the output side planetary gear used to drive the hoisting drum to rotate The electric winch is provided with an extension hole on the outer side of the planetary gear group on the input side, the transmission shaft passes through the hoisting drum, the planetary gear reducer and extends / retracts through the extension hole to achieve the purpose of clutch, and also includes a lever-type electric structure for driving the transmission shaft to extend / retract, the lever-type electric structure includes a lever and an electric push rod, the lever is located outside the extension hole and is radially arranged, the resistance arm of the lever extends to at least one side of the extension hole to achieve the operation of applying axial force to the transmission shaft, the power arm of the lever and the output end of the electric push rod are detachably connected to each other or connected together, and the output end of the electric push rod drives the lever to swing to achieve the extension and / or retraction of the transmission shaft.

[0007] In some embodiments, the output end is provided with an axially movable pushing portion, and the power arm of the lever and the pushing portion are axially arranged in parallel to achieve a detachable abutting connection. When the pushing portion pushes outward, it can push the power arm to swing outward, while the resistance arm swings inward, thereby pushing the extended transmission shaft back to achieve clutch separation. When the pushing portion is reset inward, the pushing portion does not apply a pulling force to the power arm, but relies on the transmission shaft to push the resistance arm to swing outward when it is extended to achieve the reset of the power arm to swing inward.

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

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

[0010] In some embodiments, the electric push rod includes a second electric motor and a push rod, and the second electric motor and the push rod are arranged in parallel in a transverse direction.

[0011] In some embodiments, a mounting seat is provided on the circumference of the housing of the planetary gear reducer, and the electric push rod is installed on the mounting seat.

[0012] In some embodiments, a sealing ring is provided at the extension hole, and the sealing ring is sleeved on the transmission shaft to perform a sealing function.

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

[0014] In some embodiments, a connecting shaft is provided between the input end of the winch drum and the output end of the output side planetary gear set, one end of the connecting shaft is axially slidably sleeved with the input end, and 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 via the axially slidable sleeve of the connecting shaft to achieve a clutch transmission connection; 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 clutching is required, the transmission shaft drives the connecting shaft to slide axially.

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

[0016] After adopting the above structure, compared with the prior art, the utility model has the following advantages:

[0017] In the present disclosure, an electric winch is provided with an extension hole on the outer side of the input side planetary gear set. The transmission shaft passes through the winch drum, the planetary gear reducer and extends / retracts through the extension hole to achieve the purpose of clutch. It also includes a lever-type electric structure that drives the transmission shaft to extend / retract. The lever-type electric structure includes a lever and an electric push rod. The lever is located on the outer side of the extension hole and is arranged radially. The resistance arm of the lever extends to at least one side of the extension hole to achieve the operation of applying axial force to the transmission shaft. The power arm of the lever and the output end of the electric push rod are detachably connected or connected together. The output end of the electric push rod drives the lever to swing to achieve the extension and / or retraction of the transmission shaft. Therefore, on the one hand, it has a larger driving force, making the clutch reliable and stable. On the other hand, it is more convenient to arrange the electric push rod in structure. On the other hand, the setting of the extension hole is conducive to reducing the impact on the inside of the planetary gear reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a three-dimensional schematic diagram of an electric winch with a lever-type electric clutch.

[0019] Figure 2 The invention is a three-dimensional schematic diagram of an electric winch with a lever-type electric clutch after removing the protective cover.

[0020] Figure 3 for Figure 2 Top view of the .

[0021] Figure 4 It is the AA section view.

[0022] Figure 5 This is a three-dimensional schematic diagram mainly showing the interior.

[0023] Figure 6 The utility model is a three-dimensional schematic diagram of an electric winch with a lever-type electric clutch after removing the first protective cover and the lever.

[0024] Figure 7 It is a three-dimensional schematic diagram of a lever.

[0025] Explanation of the reference numerals: 1-first electric motor, 2-bracket, 3-hoisting drum, 4-planetary gear reducer, 5-support, 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-connecting shaft, 13-extending 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, 22-arc-shaped protrusion, 23-second electric motor, 24-push rod, 25-cover, 26-mounting seat, 27-sealing ring, 28-spring, 29-first protective cover, 30-second protective cover, 31-first retaining ring, 32-second retaining ring, 33-third retaining ring, 34-transmission ring, 35-arc-shaped depression. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] The present invention provides an electric winch with a lever-type electric clutch, comprising a first electric motor 1, a bracket 2, a hoisting 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 hoisting drum 3 is rotatably connected between the brackets 2, the first electric motor 1 and the planetary gear reducer 4 are connected via a transmission shaft 6, the transmission shaft 6 passes through the hoisting drum 3 to reach an input side planetary gear set 7 of the planetary gear reducer 4, and is transmission-connected to an input sun gear 8 of the input side planetary gear set 7, the input side planetary gear set 7 is located on a side away from the bracket 2, the 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 hoisting drum 3 to rotate, and the electric winch An extension hole 13 is provided on the outer side of the input side planetary gear set 7. The transmission 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. It also includes a lever-type electric structure 14 that drives the transmission 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 on the outer side of the extension hole 13 and is arranged radially. The resistance arm 17 of the lever 15 extends to at least one side of the extension hole 13 to achieve the operation of applying axial force to the transmission shaft 6. The power arm 18 of the lever 15 is detachably connected to 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 to achieve the extension and / or retraction of the transmission shaft 6.

[0029] In this example, the transmission 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 to drive the transmission shaft 6 to retract, the spring 28 accumulates elastic potential energy. When the output end 11 of the electric push rod 16 is reversed and reset, the spring 28 releases the elastic potential energy to drive the transmission shaft 6 to extend and reset.

[0030] The spring 28 accumulates elastic potential energy, which can be tension or compression. Figure 4 , 5 As shown, 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 retract, the spring 28 is compressed by the first retaining ring 31 to accumulate elastic potential energy. When the output end 11 of the electric push rod 16 is reset in the reverse direction, 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, Figure 2 , 4As shown in FIG. 6 , the output end 11 is provided with a pushing portion 19 for axial movement, and the power arm 18 of the lever 15 and the pushing portion 19 are axially arranged in parallel to achieve a separable abutting connection. When the pushing portion 19 is pushed 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 pushing portion 19 is reset inward, the pushing portion 19 does not apply a pulling force to the power arm 18, but relies on the transmission shaft 6 to push the resistance arm 17 to swing outward when it is extended to achieve the reset of the power arm 18 to swing inward. In this way, since the extended transmission shaft 6 is pushed back to realize the separation of the clutch, the pushing part 19 can push the power arm 18 to swing outward when pushing outward, and it is not easy to get stuck. If the electric push rod 16 gets stuck during resetting, it will not cause the stuck, and the electric push rod 16 itself will not be damaged. For example, when the spline on the connecting shaft 12 described below is not aligned with the spline hole 11 of the output end 11 of the output side planetary gear set 9, the stuck situation will occur. At this time, since the electric push rod 16 will not cause the stuck, the winch drum 3 can be realigned by rotating a small angle, which is conducive to resetting.

[0032] In some embodiments, Figure 2 , 3 As shown in FIG. 6 , the push portion 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, both pushing and resetting are more reliable.

[0033] Further, such as Figure 4 , 6 As shown, 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 portion 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 resetting, as shown in FIG. Figure 6 As shown, the power arm 18 is provided with an arc-shaped recess 35 that matches the arc-shaped protrusion 22. Figure 4 The figure shows the positioning status after reset.

[0034] In some embodiments, Figure 2 , 3 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. This makes the structure more compact.

[0035] In some embodiments, Figure 2 As shown, a mounting seat 26 is provided on the circumference of the housing 25 of the planetary gear reducer 4, and the electric push rod 16 is mounted on the mounting seat 26. This makes the mounting and fixing more reliable.

[0036] In some embodiments, Figure 2 As shown, a support 5 is provided on the end surface of the cover shell 25, and the lever 15 is rotatably connected to the support 5.

[0037] In some embodiments, Figure 2 , 4 As shown, the extension hole 13 is provided with a sealing ring 27, and the sealing ring 27 is sleeved on the transmission shaft 6 to play a sealing role. In this way, it is beneficial to protect the planetary gear reducer 4, avoid malfunctions, and improve reliability and stability.

[0038] In some embodiments, Figure 4 , 5 As shown, a connecting shaft 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 connecting shaft 12 is axially slidably sleeved with the input end 10, and the other end of the connecting shaft 12 is axially slidably sleeved with the output end 11, and the input end 10 and the output end 11 are connected to each other through the axially slidable sleeve of 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, and when clutching is required, the transmission shaft 6 drives the connecting shaft 12 to slide axially. In this way, the transmission performance and clutch performance are better.

[0039] In this example, the connecting shaft 12 is configured as a spline, and the input end 10 and the output end 11 are both provided with spline holes. The front and rear sides of the connecting shaft 12 are respectively provided with a second retaining ring 32 and a third retaining ring 33. The second retaining ring 32 and the third retaining ring 33 are axially limited on the transmission shaft 6. When the transmission shaft 6 is extended / retracted, the second retaining ring 32 and the third retaining ring 33 are used to drive the connecting shaft 12 to move axially, thereby achieving the purpose of clutch.

[0040] In some embodiments, Figure 4 , 5 As shown, a transmission ring 34 is welded to the input end 10, and the transmission ring 34 serves as the input end 10 and is axially slidably sleeved with one end of the connecting shaft 12. This design is conducive to simplifying production, improving production efficiency and reducing production costs, that is, when manufacturing the hoisting drum 3, it can be manufactured according to the existing technology, and then a transmission ring 34 is welded on the hoisting drum 3 to implement the solution of the present disclosure. In particular, 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 hoisting drum 3.

[0041] like Figure 4 As shown, the end of the hoisting drum 3 located on the output side planetary gear set 9 is sleeved and connected to the transmission ring 34 and welded, so as to have better connection strength. Moreover, 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 for the connecting shaft 12 to fit with the transmission shaft 6 is set as 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 will not affect each other.

[0043] In some embodiments, Figure 1 , 6 As shown, the first protective cover 29 and the second protective cover 30 are also included. The first protective cover 29 serves as an end cover to cover the extension hole 13, the transmission 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 extended part of the power arm 18 and also covers the electric push rod 16 to provide protection. In this way, during the assembly of the electric push rod 16 or the subsequent maintenance of the electric push rod 16, the first protective cover 29 can be better protected, which is conducive to the reliability and stability of the product.

[0044] When understanding the present invention, if necessary, the above structure can refer to other embodiments / attached Figure 1 And understand, no further elaboration here.

[0045] 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 a lever-type electric clutch, comprising a first electric motor (1), a bracket (2), a hoisting 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 hoisting drum (3) is rotatably connected between the brackets (2), the first electric motor (1) and the planetary gear reducer (4) are connected via a transmission shaft (6), the transmission shaft (6) passes through the hoisting drum (3) to reach an input side planetary gear set (7) of the planetary gear reducer (4), and is transmission-connected to an input sun gear (8) of the input side planetary gear set (7), the input side planetary gear set (7) is located on a side away from the bracket (2), and the planetary gear set of the planetary gear reducer (4) on a side close to the bracket (2) is an output side planetary gear set (9) for driving the hoisting drum (3) to rotate, characterized in that: The electric winch is provided with an extension hole (13) on the outer side of the planetary gear set (7) on the input side. The transmission shaft (6) passes through the hoisting drum (3) and the planetary gear reducer (4) and extends / retracts through the extension hole (13) to achieve the purpose of clutch. The electric winch also includes a lever-type electric structure (14) for driving the transmission 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) at least extends to one side of the extension hole (13) to achieve the operation of applying an axial force to the transmission shaft (6). The power arm (18) of the lever (15) is detachably connected to 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 to achieve the extension and / or retraction of the transmission 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 pushing portion (19), and the power arm (18) of the lever (15) and the pushing portion (19) are arranged in parallel along the axial direction to realize a separable abutting connection. When the pushing portion (19) is pushed 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 realize the separation of the clutch. When the pushing portion (19) is reset inward, the pushing portion (19) does not apply a pulling force to the power arm (18), but relies on the transmission shaft (6) to push the resistance arm (17) to swing outward when it is extended to realize the power arm (18) to swing inward and reset.

3. The electric winch with lever-type electric clutch according to claim 2, characterized in that: The pushing portion (19) is provided with a radial matching groove (20), the power arm (18) matches with the radial matching groove (20), and the side surface (21) of the radial matching 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 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.

5. The electric winch with lever-type electric clutch according to claim 1, characterized in that: The electric push rod (16) comprises 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.

6. The electric winch with lever-type electric clutch according to claim 1 or 5, characterized in that: A mounting seat (26) is provided in the circumferential direction of the housing (25) of the planetary gear reducer (4), and the electric push rod (16) is mounted on the mounting seat (26).

7. The electric winch with lever-type electric clutch according to claim 1, characterized in that: The extension hole (13) is provided with a sealing ring (27), and the sealing ring (27) is sleeved on the transmission shaft (6) to play a sealing role.

8. The electric winch with lever-type electric clutch according to claim 1 or 2, characterized in that: The transmission 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 to drive the transmission shaft (6) to retract, the spring (28) accumulates elastic potential energy. When the output end (11) of the electric push rod (16) is reversed and reset, the spring (28) releases the elastic potential energy to drive the transmission shaft (6) to extend and reset.

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 hoist drum (3) and the output end (11) of the output side planetary gear set (9); one end of the connecting shaft (12) is axially slidably sleeved with the input end (10); the other end of the connecting shaft (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 connection of the connecting shaft (12); the connecting shaft (12) is also sleeved on the transmission shaft (6); the transmission shaft (6) and the connecting shaft (12) are relatively rotatable; and 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: The invention also comprises a first protective cover (29) and a second protective cover (30). The first protective cover (29) serves as an end cover to cover the extension hole (13), the transmission 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 extended part of the power arm (18) and also covers the electric push rod (16) to provide protection.

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