Electric winch with manual disengaging function

Abstract

The utility model discloses an electric winch with a manual disengaging function, belongs to the technical field of winding equipment, and provides the electric winch with the manual disengaging function which is lower in use cost and comprises a rack, a motor, a reduction gearbox, a main shaft and a belt type brake are arranged on the rack, the main shaft is rotationally connected with the rack, and the belt type brake is arranged on the rack. The main shaft is sleeved with a winding drum, the winding drum is in running fit with the main shaft, a jaw clutch is arranged between the main shaft and the winding drum and is suitable for achieving power transmission control in a manual mode, the motor is suitable for driving the main shaft to rotate through a reduction gearbox, and the jaw clutch comprises a driven part and a driving part. The driven part is connected with the winding drum, and the driving part is connected with the main shaft. The cable winding and unwinding device is simple in structure, high in working stability, convenient to maintain and low in use cost, after the clutch is disconnected, the winding drum can be easily rotated without the interference effect of a driving mechanism, and cable winding and unwinding operation is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of winding equipment, and in particular to an electric winch with a manual disengagement function. Background Art

[0002] Traditional winches are generally driven by a hydraulic motor or an electric motor, etc., which is directly connected to the winch drum through a reducer. They generally do not have a clutch disengagement function, or a multi-disc friction clutch is installed in the drum, but the cost is relatively high. Moreover, since the friction plate still has a certain friction even after disengagement, the drum requires a large external force to rotate. Therefore, once the winch fails, the cable will be in a state where it cannot be retracted or released. Summary of the invention

[0003] The object of the present application is to provide an electric winch with a manual release function which has lower use cost.

[0004] To achieve the above objectives, the present application provides an electric winch with a manual disengagement function: it includes a frame, on which is provided an electric motor, a reduction gear box, a main shaft and a belt brake, the main shaft is rotatably connected to the frame, a reel is provided on the main shaft outer shell, the reel is rotatably coordinated with the main shaft, a tooth clutch is provided between the main shaft and the reel, which is suitable for manually realizing power transmission control, and the motor is suitable for driving the main shaft to rotate through the reduction gear box, thereby driving the winch to work.

[0005] Preferably, the dog clutch comprises a driven part and a driving part, the driven part is connected to the reel, the driving part is connected to the main shaft, and the two parts of the dog clutch are synchronized with the reel and the main shaft respectively.

[0006] As a preferred embodiment, the reel includes a cylinder body, and the two ends of the cylinder body are respectively provided with a coaxial first retaining ring and a second retaining ring, the driven part includes a fixing ring fixedly connected to the second retaining ring, the fixing ring is coaxial with the second retaining ring, and the end face of the fixing ring has a driven tooth ring; the part of the main shaft close to the second retaining ring is a spline, and the driving part includes a sliding cylinder inserted into the spline, and the end of the sliding cylinder opposite to the driven part has an active tooth ring, which is suitable for meshing with the driven tooth ring. After meshing, the tooth clutch is in an engaged state, and the two independent parts of the clutch can rotate synchronously.

[0007] As a preferred embodiment, the main part of the main shaft is an optical axis, the cylinder has a coaxial axial hole, suitable for cooperating with the optical axis to form a rotating pair, and the spline is located at one end of the optical axis; the other end of the optical axis passes through the first retaining ring and is plugged with a large gear, and the output end of the reduction gear is fixedly connected with a small gear, which is suitable for meshing with the large gear and can transmit a large torque.

[0008] As a preferred embodiment, a flat key is provided on the outer surface of the part of the main shaft passing through the first retaining ring, and the large gear is linked to the main shaft through the flat key; the frame includes a base, and a pair of shaft frames are fixedly connected to the upper surface of the base, and the end face of the spline and the other end of the optical axis both have end shafts, and the two end shafts are respectively cooperated with the two shaft frames to form a rotating pair, thereby maintaining the stability of the main shaft.

[0009] As a preference, the output end of the motor is connected to the input end of the reduction box through a coupling, so as to reduce the rotation speed of the output end of the drive system and increase the torque of the output end of the drive system.

[0010] As a preference, the end face of the second retaining ring facing away from the cylinder body has a coaxial brake cylinder, the band brake is connected to the frame, and the band brake sleeve is outside the brake cylinder to quickly stop the reel.

[0011] Preferably, a rib is fixedly connected between the inner wall of the brake cylinder and the outer end surface of the second retaining ring. There are several ribs, which are equidistantly arranged around the axis of the second retaining ring, which can effectively improve the brake cylinder's anti-deformation ability.

[0012] Compared with the prior art, the beneficial effects of this application are:

[0013] (1) By installing a tooth clutch between the winch drum and the input shaft, the power connection and disconnection between the drum and the input mechanism can be achieved manually, and the clutch operation is very flexible and quick;

[0014] (2) The design has a simple structure, strong working stability, easy maintenance and low cost. After the clutch is disconnected, there is no interference from the driving mechanism, and the drum can be easily rotated to realize the cable retraction and release operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a top view of the general assembly structure of the electric winch with manual release function;

[0016] Figure 2 A plan cross-sectional view of the tooth clutch of the electric winch with manual disengagement function cooperating with the main shaft and the drum;

[0017] Figure 3 A plan cross-sectional view of the drum of the electric winch with manual release function;

[0018] Figure 4 A plan view of the main shaft of the electric winch with manual release function;

[0019] Figure 5The figure is a side view of the general assembly structure of the electric winch with manual release function.

[0020] In the figure: 1. motor; 2. reduction box; 3. coupling; 4. small gear; 5. large gear; 6. main shaft; 601. optical shaft; 602. end shaft; 603. flat key; 604. spline; 7. reel; 701. cylinder; 702. shaft hole; 703. first retaining ring; 704. second retaining ring; 705. brake cylinder; 706. rib; 8. tooth clutch; 810. driven part; 811. fixed ring; 812. driven tooth ring; 820. driving part; 821. sliding cylinder; 822. active tooth ring; 9. frame; 901. base; 902. shaft frame; 10. belt brake. DETAILED DESCRIPTION

[0021] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0022] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application 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, and cannot be understood as limiting the specific scope of protection of the present application.

[0023] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0024] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0025] like Figure 1-5The electric winch with manual disengagement function shown in the figure includes a fixed frame 9, on which a motor 1, a reduction box 2, a main shaft 6 and a belt brake 10 are arranged. The frame 9 includes a base 901, and the housings of the motor 1 and the reduction box 2 are fixedly connected to the base 901. The motor 1 drives the main shaft 6 to rotate through the reduction box 2, and the output end of the motor 1 is connected to the input end of the reduction box 2 through the coupling 3 to achieve stable transmission.

[0026] A reel 7 is disposed on the outer sleeve of the main shaft 6. The main shaft 6 is coaxial with the reel 7. The reel 7 rotates with the main shaft 6. The specific structure of the reel 7 includes a cylinder 701, and the main part of the main shaft 6 is the optical axis 601. The cylinder 701 has a coaxial axial hole 702. The axial hole 702 passes through the two end surfaces of the cylinder 701, and is just plugged with the optical axis 601 to form a rotating pair. The two ends of the cylinder 701 are respectively provided with a coaxial first retaining ring 703 and a second retaining ring 704. The diameters of the first retaining ring 703 and the second retaining ring 704 are significantly larger than the diameter of the cylinder 701. The cylinder 701 is the main space for winding the cable. The first retaining ring 703 and the second retaining ring 704 are used to prevent the cable from escaping from the two ends of the cylinder 701. It is because of the existence of the retaining rings that the radial thickness of the cable wound on the outer side of the cylinder 701 is relatively large.

[0027] A tooth clutch 8 is provided between the main shaft 6 and the reel 7, and the power transmission control can be realized manually. The tooth clutch 8 includes two relatively movable parts, namely a driven part 810 and a driving part 820. The driven part 810 is connected to the reel 7. The driven part 810 includes a fixing ring 811 fixedly connected to the second retaining ring 704. The fixing ring 811 is coaxial with the second retaining ring 704, so the fixing ring 811 is also coaxial with the cylinder 701. The end face of the fixing ring 811 has a driven tooth ring 812. The end face of the driven tooth ring 812 facing away from the second retaining ring 704 is provided with a plurality of tooth grooves equidistantly arranged around the axis. The driving part 820 is connected to the main shaft 6. The part of the main shaft 6 close to the second retaining ring 704 is a spline 604. The driving part 820 is connected to the main shaft 6. The part of the main shaft 6 close to the second retaining ring 704 is a spline 604. The driving part 820 is connected to the main shaft 6. 0 includes a sliding cylinder 821 inserted into the spline 604, and the sliding cylinder 821 can only slide along the axis of the spline 604, but cannot rotate relative to the spline 604. The end of the sliding cylinder 821 facing the driven part 810 is provided with an active tooth ring 822. The end surface of the active tooth ring 822 facing the second retaining ring 704 is provided with tooth grooves corresponding to the shape and number of the driven tooth ring 812, so that the active tooth ring 822 can be engaged with the driven tooth ring 812. Usually, the inner walls of the tooth grooves of the driven tooth ring 812 and the active tooth ring 822 are parallel to the axis of the cylinder body 701. When the active tooth ring 822 is engaged with the driven tooth ring 812, no additional restraining force is required to maintain this stable linkage state, which provides convenience for manual clutch operation.

[0028] The main shaft 6 is rotatably connected to the frame 9. The main shaft 6 is usually set horizontally. A pair of shaft frames 902 are fixedly connected to the upper surface of the base 901. The planes where the two shaft frames 902 are located are parallel and symmetrically arranged. The end face of the spline 604 and the other end of the optical axis 601 both have end shafts 602. The two end shafts 602 are respectively matched with the two shaft frames 902 to form a rotating pair. Usually, the end shaft 602 will be sleeved with a bearing structure and then matched with the shaft frame 902, which can effectively reduce the friction of the contact surface.

[0029] The end surface of the second retaining ring 704 facing away from the cylinder 701 has a coaxial brake cylinder 705, and the diameter of the brake cylinder 705 is between the cylinder 701 and the second retaining ring 704. The band brake 10 is connected to the frame 9. Usually, in order to ensure the flexibility of the band brake 10, one end of the band brake 10 facing the base 901 is hinged to the base 901. The band brake 10 is sleeved outside the brake cylinder 705. In this embodiment, the band brake 10 is also manual. When the band brake 10 is contracted, its inner wall will be connected to the brake cylinder 705. , thereby generating a larger friction resistance to inhibit the reel 7 from continuing to rotate. A rib 706 is fixedly connected between the inner wall of the brake cylinder 705 and the outer end surface of the second retaining ring 704. There are several ribs 706, which are equidistantly arranged around the axis of the second retaining ring 704, which is conducive to uniform force. The configured rib 706 structure is used to provide additional supporting force to the brake cylinder 705, thereby improving the shape stability of the brake cylinder 705 and preventing the brake cylinder 705 from deforming when under pressure.

[0030] The spline 604 is located at one end of the optical axis 601, but not at the very end of the entire main shaft 6. The other end of the optical axis 601 passes through the first retaining ring 703 and is inserted with a large gear 5, so the tooth clutch 8 and the large gear 5 are respectively located at the two ends of the main shaft 6, and the reel 7 is located between the large gear 5 and the tooth clutch 8. The part of the outer surface of the main shaft 6 passing through the first retaining ring 703 is provided with a flat key 603, and the inner wall of the central hole of the large gear 5 naturally has a keyway that fits with the flat key 603. The large gear 5 is linked to the main shaft 6 through the flat key 603, and the output end of the reduction box 2 is fixedly connected with a small gear 4, which is just meshed with the large gear 5. The large gear 5 meshing with the small gear 4 can further reduce the speed and increase the torque that drives the reel 7.

[0031] Working principle: The winch is driven by an electric motor 1 through a coupling 3 to rotate the internal gear structure of the reduction box 2. The output end of the reduction box 2 has a small gear 4, which drives the large gear 5 located on the main shaft 6 to rotate. Since the large gear 5 and the main shaft 6 are connected by a flat key 603, the main shaft 6 will rotate synchronously with the large gear 5. The clutch is a pair of tooth clutches 8, one side of which is connected to the drum 7 and the other side is connected to the main shaft 6 through a spline 604. By manually applying a force to the clutch drive unit 820 connected to the main shaft 6, the drive unit 820 is moved axially on the main shaft 6, thereby realizing the engagement and disengagement of the drum 7 and the main shaft 6, thereby achieving the clutch function; therefore, this winch is very suitable for the following special working conditions, that is, when the winch loses power or other reasons require manual retraction and release of the cable, the clutch device can be disengaged and the drum 7 can be manually pulled to rotate, thereby realizing the release and tightening of the cable.

[0032] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments. The above embodiments and the description only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application. These changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. An electric winch with manual release function, characterized in that: The invention comprises a frame (9), on which an electric motor (1), a reduction box (2), a main shaft (6) and a band brake (10) are arranged. The main shaft (6) is rotationally connected to the frame (9). A reel (7) is provided on the outer shell of the main shaft (6). The reel (7) and the main shaft (6) are rotationally matched. A tooth clutch (8) is arranged between the main shaft (6) and the reel (7), which is suitable for realizing power transmission control in a manual manner. The electric motor (1) is suitable for driving the main shaft (6) to rotate through the reduction box (2).

2. The electric winch with manual release function according to claim 1, characterized in that: The tooth clutch (8) comprises a driven part (810) and a driving part (820), wherein the driven part (810) is connected to the reel (7), and the driving part (820) is connected to the main shaft (6).

3. The electric winch with manual release function as claimed in claim 2, characterized in that: The reel (7) comprises a cylinder (701), and the two ends of the cylinder (701) are respectively provided with a coaxial first retaining ring (703) and a second retaining ring (704); the driven part (810) comprises a fixing ring (811) fixedly connected to the second retaining ring (704), the fixing ring (811) is coaxial with the second retaining ring (704), and the end face of the fixing ring (811) is provided with a driven tooth ring (812); the part of the main shaft (6) close to the second retaining ring (704) is a spline (604), and the driving part (820) comprises a sliding cylinder (821) inserted into the spline (604), and the end of the sliding cylinder (821) facing the driven part (810) is provided with an active tooth ring (822) suitable for meshing with the driven tooth ring (812).

4. The electric winch with manual release function as claimed in claim 3, characterized in that: The main body of the main shaft (6) is an optical axis (601); the barrel (701) has a coaxial axial hole (702) suitable for cooperating with the optical axis (601) to form a rotating pair; the spline (604) is located at one end of the optical axis (601); the other end of the optical axis (601) passes through the first retaining ring (703) and is plugged with a large gear (5); the output end of the reduction box (2) is fixedly connected with a small gear (4) suitable for meshing with the large gear (5).

5. The electric winch with manual release function as claimed in claim 4, characterized in that: A flat key (603) is provided on a portion of the outer surface of the main shaft (6) passing through the first retaining ring (703), and the large gear (5) is linked to the main shaft (6) through the flat key (603); the frame (9) includes a base (901), and a pair of shaft frames (902) are fixedly connected to the upper surface of the base (901), and the end face of the spline (604) and the other end of the optical axis (601) are both provided with an end shaft (602), and the two end shafts (602) are respectively matched with the two shaft frames (902) to form a rotating pair.

6. The electric winch with manual release function as claimed in claim 5, characterized in that: The output end of the motor (1) is connected to the input end of the reduction box (2) via a coupling (3).

7. The electric winch with manual release function as claimed in any one of claims 3 to 6, characterized in that: The end surface of the second retaining ring (704) facing away from the cylinder body (701) has a coaxial brake cylinder (705), the band brake (10) is connected to the frame (9), and the band brake (10) is sleeved outside the brake cylinder (705).

8. The electric winch with manual release function as claimed in claim 7, characterized in that: A rib plate (706) is fixedly connected between the inner wall of the brake cylinder (705) and the outer end surface of the second retaining ring (704), and there are a plurality of rib plates (706), which are equidistantly arranged around the axis of the second retaining ring (704).

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