Brake device for winch and winch
AssigneeT-Max (Hangzhou) Technology Co., Ltd.
InventorsHangfei Yu, Shipei Yao, Senbiao Ge, Haojia Chen, Haibin Chen, Xuebo Hu
Life of this patent
Estimating the term…
Abstract
A brake device for a winch and a winch are provided. The winch includes a rope drum, and the brake device includes a brake sleeve, an elastic ring, a torsion spring and a braking assembly. The torsion spring is fitted over the braking assembly, and the brake sleeve is fitted over the torsion spring. The braking assembly is configured to drive the torsion spring to move between an extended position and a retracted position, so as to lock and release the brake sleeve. The elastic ring is fitted over the brake sleeve and configured to abut with an inner wall of the rope drum.
Claims15
A brake device for a winch, the winch comprising a rope drum, the brake device comprising a brake sleeve, an elastic ring, a torsion spring and a braking assembly, the torsion spring being fitted over the braking assembly, the brake sleeve being fitted over the torsion spring, the braking assembly being configured to drive the torsion spring to move between an extended position and a retracted position, so as to lock and release the brake sleeve, the elastic ring being fitted over the brake sleeve and configured to abut with an inner wall of the rope drum, wherein:
- the braking assembly comprises a drive motor, a connecting rod, a front pawl and a rear pawl, the drive motor is connected to the connecting rod, the front pawl and the rear pawl are coaxially arranged on the connecting rod, the torsion spring is arranged around the front pawl and the rear pawl, the drive motor is configured to drive the front pawl and the rear pawl to rotate through the connecting rod, so that the torsion spring moves between the extended position and the retracted position;
- and
- the braking assembly further comprises two brake rings, the two brake rings are spaced apart and fitted over the torsion spring, one of the two brake rings is arranged between the front pawl and the brake sleeve, and the other one of the two brake rings is arranged between the rear pawl and the brake sleeve.
A winch, comprising:
- a rope drum configured to wind a traction rope on an outer periphery of the rope drum;
- and
- a brake device arranged in the rope drum, the brake device comprising a brake sleeve, an elastic ring, a torsion spring and a braking assembly, the torsion spring being fitted over the braking assembly, the brake sleeve being fitted over the torsion spring, the braking assembly being configured to drive the torsion spring to move between an extended position and a retracted position, so as to lock and release the brake sleeve, the elastic ring being fitted over the brake sleeve and abutting with an inner wall of the rope drum,
- wherein:
- the braking assembly comprises a drive motor, a connecting rod, a front pawl and a rear pawl, the drive motor is connected to the connecting rod, the front pawl and the rear pawl are coaxially arranged on the connecting rod, the torsion spring is arranged around the front pawl and the rear pawl, the drive motor is configured to drive the front pawl and the rear pawl to rotate through the connecting rod, so that the torsion spring moves between the extended position and the retracted position;
- and
- the braking assembly further comprises two brake rings, the two brake rings are spaced apart and fitted over the torsion spring, one of the two brake rings is arranged between the front pawl and the brake sleeve, and the other one of the two brake rings is arranged between the rear pawl and the brake sleeve.
A brake device for a winch, the winch comprising a rope drum, the brake device comprising a brake sleeve, an elastic ring, a torsion spring and a braking assembly, the torsion spring being fitted over the braking assembly, the brake sleeve being fitted over the torsion spring, the braking assembly being configured to drive the torsion spring to move between an extended position and a retracted position, so as to lock and release the brake sleeve, the elastic ring being fitted over the brake sleeve and configured to abut with an inner wall of the rope drum, wherein:
- the braking assembly comprises a drive motor, a connecting rod, a front pawl and a rear pawl, the drive motor is connected to the connecting rod, the front pawl and the rear pawl are coaxially arranged on the connecting rod, the torsion spring is arranged around the front pawl and the rear pawl, the drive motor is configured to drive the front pawl and the rear pawl to rotate through the connecting rod, so that the torsion spring moves between the extended position and the retracted position;
- and
- the brake device further comprising a speed reducer connected to an end of the connecting rod facing away from the drive motor.
Dependencies are inferred from the claim text.