Electric capstan with electromagnetic type electric clutch

Abstract

A planetary gear reducer (4) comprises a housing (5) provided with a through hole (11), the rear end of the housing (5) is connected with a rear cover cap (12), the rear cover cap (12) is axially connected with a rear end cover (10) in a sealed mode, an electromagnetic pusher (13) is arranged between the rear cover cap (12) and the rear end cover (10), a push rod (32) of the electromagnetic pusher (13) and the through hole (11) are coaxially arranged, and the through hole (11) is communicated with the through hole (11). The right end of the transmission shaft (6) is connected with the left end of the push rod (32) in an abutting mode through the through hole (11), when the push rod (32) moves leftwards, the left end of the push rod (32) pushes the transmission shaft (6) to move leftwards through the through hole (11) so that the separation purpose of the clutch can be achieved, and when the push rod (32) moves rightwards, the left end of the push rod (32) is far away from the right end of the transmission shaft (6) so that the transmission shaft (6) can move rightwards to be reset. Therefore, clutch combination reset is realized; 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 an electromagnetic 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 an electric clutch is proposed, which requires the provision of an electric structure. However, when an electromagnetic electric clutch is used, reliability is not easy to achieve, so further research is needed. Utility Model Content

[0004] The utility model provides an electric winch with electromagnetic electric clutch, which has higher reliability.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the utility model adopts the following technical scheme:

[0006] An electromagnetic electric clutch electric winch comprises an electric motor, a bracket, a hoisting drum and a planetary gear reducer, wherein the 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 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, the planetary gear set of the planetary gear reducer close to the bracket side is the output side planetary gear set for driving the hoisting drum to rotate, the planetary gear reducer comprises a cover, the rear end cover of the cover is provided with Through hole, the rear end of the cover shell is connected with a rear cover, the rear cover is axially sealed and connected to the rear end cover, an electromagnetic pusher is arranged between the rear cover and the rear end cover, the transmission shaft passes through the input side planetary gear set and further extends to the side of the rear end cover, so that the right end of the transmission shaft is close to or inserted into the through hole, the push rod of the electromagnetic pusher is coaxially arranged with the through hole, the right end of the transmission shaft and the left end of the push rod can be connected against each other through the through hole, when the push rod moves to the left, the left end of the push rod pushes the transmission shaft to move to the left through the through hole, thereby realizing the separation purpose of the clutch, when the push rod moves to the right, the left end of the push rod is away from the right end of the transmission shaft so that the transmission shaft can move to the right and reset, thereby realizing the clutch engagement and reset.

[0007] In some embodiments, it also includes an installation cover plate, which is provided with a plug-in hole, a first connecting hole and a connecting hole connecting the through hole. The installation cover plate is fixed to the rear end cover by a first bolt and a first connecting hole, and the end of the electromagnetic pusher is provided with a plug-in protrusion that cooperates with the plug-in hole.

[0008] The end of the electromagnetic pusher is connected to the mounting cover plate to form a first component, which is fixed to the rear end cover by a first bolt and a first connecting hole, and circumferential limitation is achieved by the cooperation of the plug-in protrusion and the plug-in hole to prevent the electromagnetic pusher from rotating, and the left end of the push rod is connected to the right end of the transmission shaft through the connecting hole and the through hole; or, when the rear cover is axially sealed and connected to the rear end cover, the electromagnetic pusher is axially limited and fixed between the mounting cover plate and the rear cover by the rear cover cover, and circumferential limitation is achieved by the cooperation of the plug-in protrusion and the plug-in hole to prevent the electromagnetic pusher from rotating, and the left end of the push rod is connected to the right end of the transmission shaft through the connecting hole and the through hole.

[0009] In some embodiments, the rear end cover is further provided with an annular retaining rib, which is axially sleeved with the mounting cover plate.

[0010] In some embodiments, the rear end cover is provided with a second connecting hole on the outer periphery of the annular retaining rib, the portion of the annular retaining rib corresponding to the second connecting hole is provided with an inward protrusion to avoid the second connecting hole, and the portion of the mounting cover plate corresponding to the protrusion is provided with a recess, and when the annular retaining rib and the mounting cover plate are axially sleeved, the protrusion and the recess cooperate to circumferentially position the annular retaining rib and the mounting cover plate.

[0011] In some embodiments, a second connection hole is provided through the circumferential shell, the rear end cover and the rear cover of the cover shell, and a second bolt is connected in the second connection hole to axially connect the circumferential shell, the rear end cover and the rear cover of the cover shell.

[0012] In some embodiments, a portion of the rear end cover located at the outer periphery of the annular retaining rib is sleeved with a first sealing ring, and when the rear cover is axially connected to the rear end cover, an axial sealing connection is performed through the first sealing ring.

[0013] In some embodiments, when the transmission shaft is in the initial position, the right end of the transmission shaft and the left end of the push rod are both inserted into the through hole, and the right end of the transmission shaft and the left end of the push rod are spaced apart.

[0014] In some embodiments, the through hole is provided with a second sealing ring, the second sealing ring is limited between the mounting cover plate and the rear end cover, and the push rod is sleeved with the second sealing ring.

[0015] In some embodiments, the through hole is provided with an annular mounting portion on a side facing the mounting cover plate, and the second sealing ring is sleeved in the annular mounting portion.

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

[0017] In the present disclosure, on the one hand, by providing a through hole, an axially sealed connection between the rear cover and the rear end cover, and an electromagnetic pusher between the rear cover and the rear end cover, convenient assembly is achieved, which is beneficial to controlling the coaxiality of the assembly and improving reliability. On the other hand, the rear cover and the rear end cover are axially sealed and connected, and the through hole of the rear end cover only needs to allow the right end of the transmission shaft and the left end of the push rod to be connected against each other through the through hole. Therefore, the size of the through hole can be smaller. This greatly reduces the probability of foreign matter entering the planetary gear reducer, which is beneficial to improving reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of an electric winch with electromagnetic electric clutch.

[0019] Figure 2 The figure is a top view of an electric winch with an electromagnetic electric clutch.

[0020] Figure 3 It is the AA section view.

[0021] Figure 4 The invention is a three-dimensional schematic diagram of an electric winch with an electromagnetic electric clutch after removing the rear cover.

[0022] Figure 5 It is a three-dimensional schematic diagram mainly showing the circumferential shell and the rear end cover of the cover.

[0023] Figure 6 It is a three-dimensional schematic diagram mainly showing the sleeve-fitting relationship between the first component and the rear cover.

[0024] Figure 7 for Figure 6 Schematic diagram after removing the installation cover.

[0025] Explanation of the reference numerals: 1-electric motor, 2-bracket, 3-hoisting drum, 4-planetary gear reducer, 5-cover, 6-transmission shaft, 7-input side planetary gear set, 8-input sun gear, 9-output side planetary gear set, 10-rear end cover, 11-through hole, 12-rear cover, 13-electromagnetic pusher, 14-mounting cover plate, 15-plug-in hole, 16-first connecting hole, 17-connecting hole, 18-first bolt, 19-plug-in protrusion, 20-first component, 21-annular retaining rib, 22-second connecting hole, 23-protrusion, 24-recess, 25-circumferential housing, 26-second bolt, 27-first sealing ring, 28-second sealing ring, 29-annular mounting portion, 30-spring, 31-retaining ring, 32-push rod, 33-spline shaft. 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] like Figures 1 to 7 As shown, the present disclosure provides an electromagnetic electric clutch electric winch, including an electric motor 1, a bracket 2, a hoisting drum 3 and a planetary gear reducer 4, the electric motor 1 and the planetary gear reducer 4 are respectively installed on both sides of the bracket 2, the hoisting drum 3 is rotatably connected between the brackets 2, the electric motor 1 and the planetary gear reducer 4 are connected via a transmission shaft 6, the transmission shaft 6 passes through the hoisting drum 3 to reach the input side planetary gear set 7 of the planetary gear reducer 4, and is transmission-connected with 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, the planetary gear set of the planetary gear reducer 4 close to the bracket 2 is the output side planetary gear set 9 for driving the hoisting drum 3 to rotate, the planetary gear reducer 4 includes a cover 5, and the rear end cover 10 of the cover 5 is provided with a through hole 11 The rear end of the cover shell 5 is connected with a rear cover 12, and the rear cover 12 is axially sealed with the rear cover 10. An electromagnetic pusher 13 is provided between the rear cover 12 and the rear cover 10. After the transmission shaft 6 passes through the input side planetary gear set 7, it further extends to the side of the rear cover 10, so that the right end of the transmission shaft 6 is close to or inserted into the through hole 11. The push rod 32 of the electromagnetic pusher 13 is coaxially arranged with the through hole 11. The right end of the transmission shaft 6 and the left end of the push rod 32 can be connected with each other through the through hole 11. When the push rod 32 moves to the left, the left end of the push rod 32 pushes the transmission shaft 6 to move to the left through the through hole 11, thereby achieving the purpose of clutch separation. When the push rod 32 moves to the right, the left end of the push rod 32 is away from the right end of the transmission shaft 6 so that the transmission shaft 6 can move to the right and reset, thereby achieving clutch engagement and reset.

[0029] The electromagnetic pusher 13 controls the axial reciprocating motion of the push rod 32 through electromagnetic force, and the existing technology can be used, which will not be described in detail here.

[0030] like Figure 3 As shown, in this example, the planetary gear reducer 4 has only two sets of planetary gears, namely an input side planetary gear set 7 and an output side planetary gear set 9. This structural setting is suitable for electric winches of smaller volume, commonly known as small machines.

[0031] like Figure 3 As shown, the hoisting drum 3 and the output side planetary gear set 9 are connected via a spline shaft 33, which has good transmission reliability.

[0032] The clutch is achieved by the axial movement of the transmission shaft 6. For example, the spline shaft 33 is set to move axially with the transmission shaft 6. When the transmission shaft 6 moves to the left, the spline shaft 33 is driven to the left, and the spline shaft 33 can be disengaged from the output side planetary gear set 9, thereby achieving the purpose of clutch separation. When the transmission shaft 6 moves to the right, the spline shaft 33 is driven to the right, and the spline shaft 33 can be plugged and restored with the output side planetary gear set 9, thereby achieving the clutch engagement reset. In addition to using the spline shaft 33 for clutching, other structures can also be used. For example, when the transmission shaft 6 moves to the left, the hexagonal transmission part of the transmission shaft 6 is disengaged from the hexagonal transmission hole in the center of the input sun gear 8, thereby achieving the purpose of clutch separation. When the transmission shaft 6 moves to the right, the hexagonal transmission part of the transmission shaft 6 is driven to the right, and the hexagonal transmission part of the transmission shaft 6 can be plugged and restored with the hexagonal transmission hole in the center of the input sun gear 8, thereby achieving the clutch engagement reset.

[0033] like Figure 3 As shown, in this example, the transmission shaft 6 is connected with a spring 30 and a retaining ring 31, and the left end of the spring 30 is limited. When the transmission shaft 6 moves to the left, the retaining ring 31 compresses the spring 30 to store energy. At this time, the push rod 32 moves to the left to achieve the purpose of clutch separation. When the push rod 32 moves to the right, the left end of the push rod 32 is away from the right end of the transmission shaft 6 so that the transmission shaft 6 can move to the right to reset under the action of the spring 30, thereby achieving clutch engagement reset. In this way, it is not easy to make the transmission shaft 6 stuck when resetting, that is, it is not affected by the push rod 32.

[0034] The spring 30 can store elastic potential energy in the form of tension or compression. As mentioned above, the spring 30 is in the form of compression in this example.

[0035] In some embodiments, Figure 3 , 4As shown in , 6 and 7, it also includes a mounting cover plate 14, which is provided with a plug hole 15, a first connecting hole 16 and a connecting hole 17 connected to the through hole 11. The mounting cover plate 14 is fixed to the rear end cover 10 through a first bolt 18 and the first connecting hole 16. The end of the electromagnetic pusher 13 is provided with a plug-in protrusion 19 matched with the plug-in hole 15. The end of the electromagnetic pusher 13 is connected with the mounting cover plate 14 to form a first component 20, which is connected with the first bolt 18 and the first connecting hole 16 to fix the first component 20 on the rear end cover 10, and the plug-in protrusion 19 cooperates with the plug-in hole 15 to achieve circumferential limit to prevent the electromagnetic pusher 13 from rotating. The left end of the push rod 32 is connected to the right end of the transmission shaft 6 through the connecting hole 17 and the through hole 11. In this way, disassembly and assembly are convenient and the connection is reliable.

[0036] Of course, other structures are also possible. For example, when the rear cover 12 is axially sealed and connected with the rear end cover 10, the electromagnetic pusher 13 is axially limited and fixed by the rear cover 12 between the mounting cover plate 14 and the rear cover 12, that is, it is also possible to consider limiting by the rear cover 12, and to achieve circumferential limiting by the plug-in protrusion 19 and the plug-in hole 15 to prevent the electromagnetic pusher 13 from rotating, and the left end of the push rod 32 is connected to the right end of the transmission shaft 6 through the connecting hole 17 and the through hole 11.

[0037] In some embodiments, Figure 3 , 5 As shown, the rear end cover 10 is also provided with an annular retaining rib 21, which is axially sleeved with the mounting cover plate 14. In this way, on the one hand, it is beneficial to production and assembly, and on the other hand, the annular retaining rib 21 can also play a function of blocking dirt from entering, thereby facilitating reliability.

[0038] In some embodiments, Figure 4 , 5 As shown in Figure 6, the rear end cover 10 is provided with a second connecting hole 22 on the outer periphery of the annular retaining rib 21, and the portion of the annular retaining rib 21 corresponding to the second connecting hole 22 is provided with an inward protrusion 23 to avoid the second connecting hole 22, and the portion of the mounting cover plate 14 corresponding to the protrusion 23 is provided with a recess 24. When the annular retaining rib 21 and the mounting cover plate 14 are axially sleeved, the protrusion 23 and the recess 24 cooperate to circumferentially position the annular retaining rib 21 and the mounting cover plate 14.

[0039] In some embodiments, Figure 3 , 4 As shown, the portion of the rear end cover 10 located at the outer periphery of the annular retaining rib 21 is sleeved with a first sealing ring 27, and when the rear cover 12 is axially connected to the rear end cover 10, an axial sealing connection is performed through the first sealing ring 27. In this way, better sealing is achieved, which is beneficial to reliability.

[0040] In some embodiments, Figure 3 As shown, when the transmission shaft 6 is in the initial position, the right end of the transmission shaft 6 and the left end of the push rod 32 are both inserted into the through hole 11, and the right end of the transmission shaft 6 and the left end of the push rod 32 are spaced apart. The initial position refers to the clutch engagement position. In this way, the clutch engagement position is reliable and the transmission shaft 6 is prevented from being unable to be completely reset to its original position under the influence of the push rod 32.

[0041] In some embodiments, Figure 3 As shown, the through hole 11 is provided with a second sealing ring 28, the second sealing ring 28 is limited between the mounting cover plate 14 and the rear end cover 10, and the push rod 32 is sleeved with the second sealing ring 28. In this way, it has better sealing performance, which is beneficial to reliability.

[0042] Further, such as Figure 3 , 5 As shown, the through hole 11 is provided with an annular mounting portion 29 on the side facing the mounting cover plate 14, and the second sealing ring 28 is sleeved in the annular mounting portion 29. In this way, the second sealing ring 28 is installed in a relatively good state, which is conducive to improving reliability.

[0043] When understanding the present invention, if necessary, the above structure can refer to other embodiments / attached Figure 1 And understand, no further elaboration here.

[0044] 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 electromagnetic electric clutch electric winch, comprising an electric motor (1), a bracket (2), a hoisting drum (3) and a planetary gear reducer (4), wherein the 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 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) and reaches 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 planetary gear reducer (4) comprises a housing (5), a rear end cover (10) of the housing (5) is provided with a through hole (11), a rear end of the housing (5) is connected to a rear cover (12), the rear cover (12) is axially sealedly connected to the rear end cover (10), an electromagnetic pusher (13) is provided between the rear cover (12) and the rear end cover (10), a transmission shaft (6) passes through an input side planetary gear set (7) and further extends toward one side of the rear end cover (10), so that the right end of the transmission shaft (6) is close to or inserted into the through hole (11), and the electromagnetic pusher (13) is provided between the rear cover (12) and the rear end cover (10). The push rod (32) of the pusher (13) is coaxially arranged with the through hole (11); the right end of the transmission shaft (6) and the left end of the push rod (32) can be abutted against each other through the through hole (11); when the push rod (32) moves to the left, the left end of the push rod (32) pushes the transmission shaft (6) to move to the left through the through hole (11), thereby achieving the purpose of clutch separation; when the push rod (32) moves to the right, the left end of the push rod (32) moves away from the right end of the transmission shaft (6), so that the transmission shaft (6) can move to the right to reset, thereby achieving clutch engagement and reset.

2. The electric winch with electromagnetic electric clutch according to claim 1, characterized in that: The mounting cover plate (14) is provided with a plug hole (15), a first connection hole (16) and a connecting hole (17) connected to the through hole (11); the mounting cover plate (14) is fixed to the rear end cover (10) by means of a first bolt (18) and the first connection hole (16); and an end of the electromagnetic pusher (13) is provided with a plug protrusion (19) matched with the plug hole (15); The end of the electromagnetic pusher (13) is connected to the mounting cover plate (14) to form a first component (20), which is fixed to the rear end cover (10) by a first bolt (18) and a first connecting hole (16), and a circumferential limit is achieved by the cooperation of the plug-in protrusion (19) and the plug-in hole (15) to prevent the electromagnetic pusher (13) from rotating. The left end of the push rod (32) is connected to the right end of the transmission shaft (6) through the connecting hole (17) and the through hole (11). or, when the rear cover (12) is axially sealed and connected to the rear end cover (10), the electromagnetic pusher (13) is axially limited and fixed between the mounting cover plate (14) and the rear cover (12) by the rear cover (12), and circumferential limitation is achieved by the plug-in protrusion (19) and the plug-in hole (15) to prevent the electromagnetic pusher (13) from rotating, and the left end of the push rod (32) is connected to the right end of the transmission shaft (6) through the connecting hole (17) and the through hole (11).

3. The electric winch with electromagnetic electric clutch according to claim 2, characterized in that: The rear end cover (10) is also provided with an annular retaining rib (21), and the annular retaining rib (21) is axially sleeved with the mounting cover plate (14).

4. The electric winch with electromagnetic electric clutch according to claim 3, characterized in that: The rear end cover (10) is provided with a second connection hole (22) on the outer periphery of the annular retaining rib (21); a portion of the annular retaining rib (21) corresponding to the second connection hole (22) is provided with an inward protrusion (23) to avoid the second connection hole (22); a portion of the mounting cover plate (14) corresponding to the protrusion (23) is provided with a recess (24); when the annular retaining rib (21) and the mounting cover plate (14) are axially sleeved, the protrusion (23) and the recess (24) cooperate to circumferentially position the annular retaining rib (21) and the mounting cover plate (14).

5. The electric winch with electromagnetic electric clutch according to claim 1 or 4, characterized in that: A second connection hole (22) is provided through the circumferential shell (25), the rear end cover (10) and the rear cover (12) of the cover shell (5), and a second bolt (26) is connected in the second connection hole (22) to axially connect the circumferential shell (25), the rear end cover (10) and the rear cover (12) of the cover shell (5).

6. The electric winch with electromagnetic electric clutch according to claim 3 or 4, characterized in that: A portion of the rear end cover (10) located on the outer periphery of the annular retaining rib (21) is sleeved with a first sealing ring (27). When the rear cover (12) and the rear end cover (10) are axially connected, an axial sealing connection is performed through the first sealing ring (27).

7. The electric winch with electromagnetic electric clutch according to claim 1 or 2, characterized in that: When the transmission shaft (6) is in the initial position, the right end of the transmission shaft (6) and the left end of the push rod (32) are both inserted into the through hole (11), and the right end of the transmission shaft (6) and the left end of the push rod (32) are spaced apart; the initial position refers to the clutch engagement position.

8. The electric winch with electromagnetic electric clutch according to claim 7, characterized in that: The through hole (11) is provided with a second sealing ring (28), the second sealing ring (28) is limited between the mounting cover plate (14) and the rear end cover (10), and the push rod (32) is sleeved with the second sealing ring (28).

9. The electric winch with electromagnetic electric clutch according to claim 8, characterized in that: The through hole (11) is provided with an annular mounting portion (29) on the side facing the mounting cover plate (14), and the second sealing ring (28) is sleeved in the annular mounting portion (29).

10. The electric winch with electromagnetic electric clutch according to claim 1, characterized in that: The transmission shaft (6) is connected with a spring (30) and a retaining ring (31). The left end of the spring (30) is limited. When the transmission shaft (6) moves to the left, the retaining ring (31) compresses the spring (30) to store energy. At this time, the push rod (32) moves to the left to achieve the purpose of clutch separation. When the push rod (32) moves to the right, the left end of the push rod (32) is away from the right end of the transmission shaft (6), so that the transmission shaft (6) can move to the right to reset under the action of the spring (30), thereby achieving clutch engagement and reset.

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