Electric clutch turning gear

Abstract

The utility model discloses an electric clutch barring gear, which relates to the technical field of barring gears and comprises a combination sleeve arranged on a transmission shaft of the barring gear and a combiner for connecting the combination sleeve and a motor, a non-circular meshing hole matched with the combiner in shape is arranged at the end of the combination sleeve, and the non-circular meshing hole is matched with the combiner in shape. The combination sleeve comprises a sliding shaft sleeve, a flexible rubber connector and a transmission head provided with a meshing hole, the transmission shaft is sleeved with the sliding shaft sleeve in a sliding mode, the sliding shaft sleeve and the transmission shaft are fixed in the circumferential direction through a key and a key groove which are matched, and the transmission head is connected with the sliding shaft sleeve through the flexible rubber connector and connected with the transmission shaft through an axial positioning assembly. The axial positioning assembly is used for limiting the transmission head to move in the axial direction of the transmission shaft, and therefore the problems that an existing turning gear and a motor are in meshing transmission through a gear, the transmission structure is single, and the turning gear and the motor cannot be flexibly connected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cranking devices, in particular to an electric clutch cranking device. Background Art

[0002] Cranking means turning the motor a few times before starting it, to determine whether the load driven by the motor (i.e. the mechanical or transmission part) is stuck and the resistance is increased, so as to avoid increasing the starting load of the motor and damaging the motor (i.e. burning it out).

[0003] At present, a cranking device is generally used for cranking, and the cranking device mainly includes a cranking reducer and a cranking clutch mechanism, wherein the cranking clutch mechanism is used to connect and disconnect the cranking reducer with the motor. The transmission shaft of the cranking clutch mechanism is connected with the motor shaft of the motor by gear meshing. When the motor is started, the cranking clutch mechanism disconnects the transmission shaft from the cranking reducer.

[0004] Since the existing turning device and the motor are usually connected by gear meshing, not only is the transmission method single, but the gear meshing is a rigid connection. When the motor fails, gets stuck or has a heavy load, the turning device will hard start the motor, which may easily cause damage to the turning device, the motor and the gear. Utility Model Content

[0005] The purpose of the utility model is to provide an electric clutch turning device to solve the above technical problems.

[0006] Based on the above purpose, the utility model provides an electric clutch winch device, including a winch reduction box and a winch clutch device, the winch reduction box is connected to and disconnected from the motor through the winch clutch device, a coupling sleeve is arranged on the transmission shaft, an engagement hole is arranged at the end of the coupling sleeve, the engagement hole is non-circular, a coupling element adapted to its shape is inserted into the engagement hole, and the coupling element is connected to the motor shaft of the motor;

[0007] The combined sleeve comprises a sliding sleeve, a flexible rubber joint and a transmission head provided with an engagement hole, the sliding sleeve is slidingly sleeved on the transmission shaft, and the sliding sleeve and the transmission shaft are circumferentially fixed by matching keys and keyways;

[0008] The transmission head is connected to the sliding sleeve via a flexible rubber joint, and the transmission head is connected to the transmission shaft via an axial positioning component, and the axial positioning component is used to limit the movement of the transmission head in the axial direction of the transmission shaft.

[0009] Furthermore, the engagement hole is arranged on the front side of the transmission head, and an annular groove surrounding the engagement hole is provided on the back side of the transmission head, one end of the tubular flexible rubber joint is arranged in the annular groove, and the difference between the outer diameter and the inner diameter of the annular groove is greater than the difference between the outer diameter and the inner diameter of the flexible rubber joint.

[0010] Furthermore, a centering shaft hole is provided on the back side of the transmission head, and one end of the transmission shaft is rotatably plugged into the centering shaft hole.

[0011] Furthermore, the axial positioning assembly includes a limit sleeve and a protective shell, the limit sleeve is axially fixed on the transmission shaft, the protective shell is rotatably sleeved on the transmission shaft and is rotatably connected to the limit sleeve, and the protective shell is connected to the transmission head, and the sliding sleeve and the flexible rubber joint are located in a closed cavity between the protective shell and the transmission head.

[0012] Furthermore, the protective shell is connected to the transmission head through a flange and bolts.

[0013] Beneficial effects of the utility model:

[0014] The utility model adopts a coupling and a coupling sleeve that are plugged into each other to realize the connection between the turning device and the motor. The shape of the coupling is adapted to the shape of the meshing hole on the coupling sleeve, and the sliding shaft sleeve of the coupling sleeve utilizes a flexible rubber joint to drive a transmission head provided with the meshing hole to rotate, thereby realizing a soft connection between the turning device and the motor, thereby solving the problem that the existing turning device and the motor are driven by gear meshing, the transmission structure is single and the two cannot be softly connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 For the utility model Figure 1 Side view of

[0018] Figure 3 For the utility model Figure 2 A cross-sectional view of

[0019] Figure 4 It is a schematic diagram of the structure of the transmission shaft, sliding sleeve and limiting sleeve of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the sliding sleeve and the flexible rubber joint of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the transmission head and the flexible rubber joint of the utility model;

[0022] Figure 7 It is a schematic diagram of the structure of the binder of the utility model;

[0023] Figure 8 This is a schematic diagram of the structure of the protective shell of the utility model;

[0024] The numbers in the figure are:

[0025] 1- transmission shaft; 2- coupling sleeve; 3- coupling; 4- meshing hole; 5- key; 6- keyway; 7- axial positioning assembly; 8- annular groove; 9- centering shaft hole; 10- flange; 11- bolt;

[0026] 201-sliding sleeve; 202-flexible rubber joint; 203-transmission head;

[0027] 701-limiting sleeve; 702-protective shell. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0029] like Figures 1 to 8 As shown, an electric clutch winch device comprises a winch reduction box and a winch clutch device, the winch reduction box is connected to and disconnected from the motor through the winch clutch device, a coupling sleeve 2 is arranged on the transmission shaft 1, an engagement hole 4 is arranged at the end of the coupling sleeve 2, the engagement hole 4 is non-circular, a coupling element 3 adapted to the shape of the engagement hole 4 is inserted in the engagement hole 4, and the coupling element 3 is connected to the motor shaft of the motor;

[0030] The combining sleeve 2 includes a sliding sleeve 201, a flexible rubber joint 202 and a transmission head 203 provided with an engagement hole 4. The sliding sleeve 201 is slidingly sleeved on the transmission shaft 1, and the sliding sleeve 201 and the transmission shaft 1 are circumferentially fixed by matching keys 5 and keyways 6. Specifically, the axial hole of the sliding sleeve 201 is provided with a keyway 6, and the side wall of the transmission shaft 1 is provided with a key 5. Preferably, a plurality of keys 5 and keyways 6 are provided.

[0031] The transmission head 203 is connected to the sliding sleeve 201 via a flexible rubber joint 202 , and the transmission head 203 is connected to the transmission shaft 1 via an axial positioning component 7 , and the axial positioning component 7 is used to limit the movement of the transmission head 203 in the axial direction of the transmission shaft 1 .

[0032] The utility model adopts the method of plugging the coupling 3 and the coupling sleeve 2 to realize the transmission connection between the turning device and the motor. Compared with the current method of gear meshing transmission between the turning device and the motor, it has the advantages of higher transmission structure strength, high meshing accuracy and smooth transmission.

[0033] Furthermore, the coupling sleeve 2 and the coupling element 3 are softly connected. When the transmission shaft 1 of the clutch device drives the sliding sleeve 201 to rotate, the flexible rubber joint 202 is used to transmit torque, so that the transmission head 203 drives the coupling element 3 to rotate, thereby driving the motor to rotate. In addition, the flexible rubber joint 202 will be twisted while transmitting torque, and when the flexible rubber joint 202 is twisted, its length is reduced. Because the transmission head 203 is restricted by the axial positioning component 7 and cannot move axially, the sliding sleeve 201 slides toward the transmission head 203 under the pull of the flexible rubber joint 202 to compensate for the shortened length of the flexible rubber joint 202 due to twisting.

[0034] In summary, the utility model adopts mutually plug-in coupling 3 and coupling sleeve 2 to realize the connection between the turning device and the motor. The shape of the coupling 3 is adapted to the shape of the meshing hole 4 on the coupling sleeve 2, and the sliding sleeve 201 of the coupling sleeve 2 utilizes the flexible rubber joint 202 to drive the transmission head 203 provided with the meshing hole 4 to rotate, thereby realizing the soft connection between the turning device and the motor, thereby solving the problem that the existing turning device and the motor are driven by gear meshing, the transmission structure is single and the two cannot be softly connected.

[0035] The shape of the coupling element 3 is usually a quadrilateral square column or a hexagonal hexagonal column, and the shape of the engagement hole 4 is adapted to the shape of the coupling element 3 .

[0036] Further optimization of the above embodiment is that the meshing hole 4 is arranged on the front of the transmission head 203, and the back of the transmission head 203 is provided with an annular groove 8 surrounding the meshing hole 4, and one end of the tubular flexible rubber joint 202 is arranged in the annular groove 8. The design of the annular groove 8 can make full use of the structural characteristics of the transmission head 203 and reduce the axial length of the coupling sleeve 2. In addition, the difference between the outer diameter and the inner diameter of the annular groove 8 is greater than the difference between the outer diameter and the inner diameter of the flexible rubber joint 202, so as to meet the need for the flexible rubber joint 202 to expand inwardly and / or outwardly when twisted.

[0037] A further optimization of the above embodiment is that a centering shaft hole 9 is provided on the back of the transmission head 203, and one end of the transmission shaft 1 is rotatably plugged into the centering shaft hole 9. The centering shaft hole 9 enables the transmission head 203 to remain coaxial with the transmission shaft 1 to ensure smooth rotation of the transmission head 203 and enables the transmission shaft 1 to radially support the horizontally set transmission head 203.

[0038] Among them, the axial positioning assembly 7 includes a limiting sleeve 701 and a protective shell 702. The limiting sleeve 701 is axially fixed on the transmission shaft 1. The protective shell 702 is rotatably sleeved on the transmission shaft 1 and is rotatably connected to the limiting sleeve 701. The protective shell 702 is connected to the transmission head 203 through a flange 10 and a bolt 11. The sliding sleeve 201 and the flexible rubber joint 202 are located in a closed cavity between the protective shell 702 and the transmission head 203.

[0039] The limiting sleeve 701 is fixed on the transmission shaft 1 by welding or fasteners, and the transmission head 203 is connected to one end of the protective shell 702 on the outer side of the annular groove 8, so that the sliding sleeve 201 and the flexible rubber joint 202 are arranged in a closed cavity enclosed by the protective shell 702 and the transmission head 203, so as to keep the internal parts of the closed cavity clean, slow down the aging of the flexible rubber joint 202, and improve the appearance.

[0040] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the embodiments disclosed above are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. An electric clutch turning device, characterized in that: It comprises a coupling sleeve (2) arranged on a transmission shaft (1) of a turning device, and a coupling member (3) connecting the coupling sleeve (2) and a motor, wherein an engaging hole (4) adapted to the shape of the coupling member (3) is arranged at the end of the coupling sleeve (2), and the engaging hole (4) is non-circular; The coupling sleeve (2) comprises a sliding sleeve (201), a flexible rubber joint (202) and a transmission head (203) provided with an engagement hole (4); the sliding sleeve (201) is slidingly sleeved on the transmission shaft (1), and the sliding sleeve (201) and the transmission shaft (1) are circumferentially fixed via matching keys (5) and keyways (6); The transmission head (203) is connected to the sliding sleeve (201) via a flexible rubber joint (202), and the transmission head (203) is connected to the transmission shaft (1) via an axial positioning component (7), wherein the axial positioning component (7) is used to limit the movement of the transmission head (203) in the axial direction of the transmission shaft (1).

2. The electric clutch turning device according to claim 1, characterized in that: The meshing hole (4) is arranged on the front side of the transmission head (203); an annular groove (8) surrounding the meshing hole (4) is arranged on the back side of the transmission head (203); one end of the tubular flexible rubber joint (202) is arranged in the annular groove (8); and the difference between the outer diameter and the inner diameter of the annular groove (8) is greater than the difference between the outer diameter and the inner diameter of the flexible rubber joint (202).

3. The electric clutch turning device according to claim 2, characterized in that: A centering shaft hole (9) is provided on the back side of the transmission head (203), and one end of the transmission shaft (1) is rotatably plugged into the centering shaft hole (9).

4. The electric clutch turning device according to claim 1, characterized in that: The axial positioning assembly (7) comprises a limiting sleeve (701) and a protective shell (702), wherein the limiting sleeve (701) is axially fixedly arranged on the transmission shaft (1), the protective shell (702) is rotatably sleeved on the transmission shaft (1) and is rotatably connected to the limiting sleeve (701), and the protective shell (702) is connected to the transmission head (203), and the sliding sleeve (201) and the flexible rubber joint (202) are located in a closed cavity between the protective shell (702) and the transmission head (203).

5. The electric clutch turning device according to claim 4, characterized in that: The protective shell (702) is connected to the transmission head (203) via a flange (10) and bolts (11).

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