CN110386561B

CN110386561B - Winch

Info

Publication number: CN110386561B
Application number: CN201810368404.4A
Authority: CN
Inventors: 张振顺; 邱永发; 应斌; 邹正辉; 谢卫兵; 宋衍; 张华�; 李发科
Original assignee: China Petroleum and Chemical Corp
Current assignee: China Petroleum and Chemical Corp
Priority date: 2018-04-23
Filing date: 2018-04-23
Publication date: 2020-12-15
Anticipated expiration: 2038-04-23
Also published as: CN110386561A

Abstract

The invention discloses a winch, which comprises a roller and a motor arranged in the roller, wherein the motor comprises a stator assembly and a rotor assembly, and the roller is coaxially and rotatably assembled on the rotor assembly and is in transmission connection with the rotor assembly through a clutch. The winch provided by the invention has a compact structure, can be used on a vehicle, can control the power transmission of the roller through the opening and closing of the clutch during working, avoids frequent switching on and off of the motor, and reduces the loss of the motor.

Description

Winch

Technical Field

The invention relates to a winch.

Background

The winch is also called a winch, is widely applied to the fields of buildings, mines, water conservancy and the like, and is mainly used for lifting or flatly dragging materials. The existing winch generally comprises a power and transmission system, a roller shaft, a clutch and a brake hub. The power and transmission system typically employs a diesel engine or electric motor to transfer power to the drum through a gearbox or transfer case. The main defects of low power transmission efficiency, large noise, complex structure, inconvenient maintenance and the like exist during use.

The utility model discloses an authorization publication number is CN 204490391U's a utility model discloses an oil-well rig external rotor PMSM directly drives winch, and its winch driving motor includes two outside driving motor and an inboard driving motor, and winch cylinder and permanent-magnet machine rotor integral type link firmly, by the rotation of motor direct drive winch cylinder, have saved reduction gears, have improved transmission efficiency.

The utility model discloses a winch equipment has been equipped with three permanent-magnet machine, and it is big to have motor occupation space, can not make the vehicular winch, needs the work operation through frequent switch motor control winch moreover, and is great to the loss of motor, and in use maintains and has certain limitation.

Disclosure of Invention

The invention aims to provide a winch, which solves the technical problem that a motor needs to be frequently switched to control the operation because a control mechanism is not arranged in the prior art.

In order to achieve the purpose, the technical scheme of the invention is as follows: the winch comprises a roller and a motor arranged in the roller, wherein the motor comprises a stator assembly and a rotor assembly, the roller is coaxially and rotatably assembled on the rotor assembly, and the rotor assembly is in transmission connection with the roller through a clutch.

The invention has the beneficial effects that: in the provided winch, the power transmission of the roller can be controlled by opening and closing the clutch during working, so that the frequent switching of the motor is avoided, and the loss of the motor is reduced; and the motor is arranged in the roller, so that the whole winch occupies small space and has a more compact structure.

The rotor assembly comprises the rotor and the motor shell fixedly arranged outside the rotor, so that the assembly is convenient, and meanwhile, the later-stage maintenance is convenient.

The stator assembly comprises a motor shaft and a stator fixedly connected with the motor shaft, and two ends of the stator assembly are fixedly arranged on the supporting part.

The rotor assembly and the stator assembly are rotatably assembled through the first bearing, and the loss in the power transmission process is reduced to the greatest extent by the bearing assembling mode.

The clutch is a friction clutch (hereinafter referred to as clutch), and has the advantages that the impact force is small when the friction clutch is connected from the driving disk, the maximum torque sent by the motor can be ensured, and the noise is low during the operation. The driven disc of the clutch is arranged on the roller, and the driving disc and the driven disc are correspondingly arranged on the rotor assembly.

And the rotor assembly is provided with a sliding key extending along the axial direction of the motor, and the friction plate of the driving disc is assembled with the sliding key in a guiding and sliding manner. The connection mode is convenient to disassemble and assemble and convenient to maintain in the later period.

The drum has flanges at axial ends, the flanges including an inner ring plate, an outer ring plate, and a bridge plate bridging between the inner and outer ring plates. The driven disc of the clutch is fixedly connected with the outer end face of the outer ring plate. The roller with the structure is light in weight and convenient to carry on a vehicle.

And a second bearing is arranged between the inner ring plate and the rotor assembly, and a gap is reserved between the outer ring plate and the rotor assembly so as to realize the rotating assembly of the roller and the rotor assembly.

And a brake hub is arranged outside the bridging plate. The whole roller and each part have compact structure, and are convenient for vehicle-mounted installation.

Drawings

FIG. 1 is a schematic illustration of a drawworks provided in accordance with the present invention with the clutch disengaged;

FIG. 2 is a schematic view of the drawworks provided by the present invention with the clutch engaged.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

In the embodiment of the winch of the present invention, as shown in fig. 1 and 2, the winch includes a drum 4 and a motor 3 embedded in the drum 4, the motor 3 includes a stator assembly 17 and a rotor assembly 18, and the rotor assembly 18 is in transmission connection with the drum 4 through a clutch 6.

The rotor assembly 18 includes a motor housing 7 and a rotor 10 fixed in the motor housing 7, and in other embodiments, the motor housing 7 and the rotor 10 may be a unitary structure. The stator assembly 17 includes a motor shaft 8 and a stator 9 fixed on the motor shaft 8, and in other embodiments, the motor shaft 8 and the stator 9 may be a unitary structure. In view of the material requirements and cost of the stator 9 and the rotor 10, it is preferable that the motor housing 7 and the rotor 10 in the rotor assembly 18 and the motor shaft 8 and the stator 9 in the stator assembly 17 are arranged separately. The two ends of the motor shaft 8 are fixedly arranged on a supporting part 19, and the supporting part 19 consists of a base 1 and a supporting frame 2.

The motor housing 7 and the motor shaft 8 are rotatably assembled together through a first bearing 16 to realize the rotating assembly between the rotor assembly 18 and the stator assembly 17.

The clutch 6 may be an electromagnetic clutch, a magnetic powder clutch, a friction clutch and a hydraulic clutch, and is preferably a friction clutch here, and the driven plate 12 of the clutch 6 is provided on the drum 4, and the driving plate 11 and the driven plate 12 are arranged on the motor housing 7 in the axial direction of the motor 3. The driving disk 11 is a spring telescopic component, an air bag 14 is arranged in the driving disk 11, the joint of the driving disk 11 and the driven disk 12 can be controlled through the air pressure in the air bag 14, a return spring is further arranged in the driving disk 11, the return spring can pull back the friction plates of the driving disk 11 towards the direction far away from the driven disk, so that the driving disk 11 is separated from the driven disk 12, and the joint degree of the driven disk 12 and the driving disk 11 can be controlled through the air pressure in the air bag 14, so that the torque receiving capacity and the rotating speed of the driven disk 12 are controlled. The motor shell 7 is provided with a sliding key 13 extending along the axial direction of the motor 3, and the friction plate of the driving disk 11 is assembled with the sliding key 13 fixedly arranged on the motor shell 7 in a guiding and sliding way. Specifically, an axially extending sliding groove may be formed in the sliding key 13, and a friction plate of the driving disk 11 is disposed in the sliding groove, and the sliding groove guides the axial reciprocating movement of the friction plate of the driving disk 11.

The roller 4 is provided with flanges 4-1 at axial ends, the flanges 4-1 comprise an inner ring plate 4-4, an outer ring plate 4-2 and a bridge plate 4-3 connecting the inner ring plate 4-4 and the outer ring plate 4-2, the flanges 4-1 are of a one-piece structure, and in other embodiments, the flanges 4-1 can also be of a fixedly connected splicing structure. A driven disc 12 of the clutch 6 is fixedly connected with the outer end face of the outer ring plate 4-2, the inner ring plate 4-4 and the motor shell 7 are rotatably assembled through a second bearing 15, and a gap is reserved between the outer ring plate 4-2 and the motor shell 7. A brake hub 5 is arranged outside the bridging plate 4-3.

The specific working process is as follows: starting the motor 3, wherein the driving disk 11 and the driven disk 12 of the clutch 6 are not engaged, only the rotor 10 drives the motor shell 7 to rotate, and the roller 4 does not rotate, as shown in fig. 1; operating the air bag 14, leading the friction plates of the driving disk 11 to move along the sliding grooves on the sliding key 13 under the action of the air bag 14 so as to be jointed with the driven disk 12, wherein the roller 4 rotates under the driving of the motor rotor assembly 18 as shown in figure 2, and regulating the jointing degree of the friction plates of the driving disk 11 and the driven disk 12 by regulating the air pressure in the air bag 14 so as to regulate the rotating speed of the roller; the air bag 14 is operated again to separate the driving disc 11 and the driven disc 12 under the action of the return spring, the brake hub 5 is started, the brake hub 5 holds the roller 4 tightly, and the roller 4 stops rotating.

Claims

1. The utility model provides a winch, includes the cylinder and places the motor in the cylinder in, this motor includes stator assembly and rotor assembly, its characterized in that: the rotor assembly is positioned at the radial outer side of the stator assembly, the rotor assembly comprises a motor shell and a rotor, the rotor is fixedly arranged in the motor shell, the stator assembly comprises a motor shaft and a stator, the stator is fixedly arranged on the motor shaft, two ends of the motor shaft are fixedly arranged on the supporting part, and the motor shell and the motor shaft are rotatably assembled together through a first bearing; the drum is coaxially and rotatably assembled on the outer peripheral surface of a motor shell of the rotor assembly, the rotor assembly is in transmission connection with the drum through a clutch, the clutch and the drum are located on the outer peripheral surface of the motor shell and are arranged along the axis direction of the motor, the clutch is a friction clutch, a driven disc of the clutch is arranged on the end surface of the drum, which faces the end surface of the clutch, of the driven disc, the driving disc and the driven disc are arranged along the axis direction of the motor, a sliding key extending along the axial direction of the motor is arranged on the motor shell, and a friction plate of the driving disc is in guiding sliding assembly with the sliding key fixedly installed on the motor shell.

2. The winch of claim 1, wherein: the drum has flanges at axial ends, the flanges including an inner ring plate, an outer ring plate, and a bridge plate bridging between the inner and outer ring plates.

3. The winch of claim 2, wherein: and the driven disc is fixedly connected with the outer end face of the outer ring plate.

4. The winch of claim 2, wherein: and a second bearing is arranged between the inner ring plate and the rotor assembly to realize the rotating assembly of the roller and the rotor assembly, and a gap is reserved between the outer ring plate and the rotor assembly.

5. The winch of claim 2, wherein: and a brake hub is arranged outside the bridging plate.