Electric capstan

Abstract

The invention provides an electric capstan. The electric capstan comprises a winding drum, a motor, a reduction gearbox and a brake assembly, the motor is fixed to a left support, a main shaft of the motor penetrates through the left support to be located in the winding drum, the reduction gearbox is composed of a planetary mechanism and a cycloid type pinwheel mechanism, the planetary mechanism comprises an end cover, a sun gear, a planetary gear, a planetary carrier and an output outer gear, an inner gear ring is arranged in the end cover, the planetary gear is meshed with the inner gear ring and the sun gear, the sun gear is inserted into a sliding sleeve on the end cover, the planetary gear is fixed to the planetary carrier, the output outer gear is fixed to the planetary carrier, the end cover is fixed to an outer cylinder, meanwhile, the output outer gear is fixed to an inner gear connector on an eccentric shaft of the cycloid type pinwheel mechanism, and the brake assembly is located in the winding drum. One side of the brake assembly is fixed to the main shaft of the motor, and the other side of the brake assembly can penetrate out of the winding drum and penetrate through the cycloid type pinwheel mechanism to be connected with the sun gear in an inserted mode for driving the sun gear to rotate. Therefore, the overall structure is more compact, and installation and maintenance are more convenient.

Description

technical field [0001] The invention relates to an electric winch. Background technique [0002] An electric winch is a device that can be used for traction. Many of them are used in automobiles, such as car winches, which are mostly used for self-rescue or rescue in harsh environments. The existing electric winches mainly include motors, transmission shafts, and winches. The existing reduction transmission box consists of three planetary gear assemblies of different sizes, the first-stage planetary gear assembly, the second-stage planetary gear assembly, and the third-stage planetary gear assembly. , when the electric winch is working under force, the three sets of planetary gears are the meshing of a single gear, so the quality requirements for the planetary gear assembly are particularly high. Once one of the three sets of planetary gears is damaged, the electric winch will not work normally. At the same time, due to the large number of gears, it will take a long time to...

AI Technical Summary

Problems solved by technology

[0002] An electric winch is a device that can be used for traction. Many of them are used in automobiles, such as car winches, which are mostly used for self-rescue or rescue in harsh environments. The existing electric winches mainly include motors, transmission shafts, and winches. The existing reduction transmission box consists of three planetary gear assemblies of different sizes, the first-stage planetary gear assembly, the second-stage planetary gear assembly, and the third-stage planetary gear assembly. , when the electric winch is working under force, the three sets of planetary gears are the meshing of a single gear, so the quality requirements for the planetary gear assembly are particularly high. Once one of the three sets of planetary gears is damaged, the electric winch will not work normally. At the same time, due to the large number of gears, it will take a long time to find damaged gears during maintenance, resulting in the problem of low work efficiency. At the same time, the cycloidal pin wheel mechanism is also a common reduction mechanism, and its advantage is that the reduction ratio is large. High transmission efficiency, small size, light weight, less faults, long life, stable and reliable operation, low noise, convenient disassembly, easy maintenance, simple structure, strong overload capacity, impact resistance, small moment of inertia, etc., so how to put The application of the cycloidal pinwheel mechanism to the electric winch in order to solve the problems existing in the existing electric winch is an important problem that the electric winch needs to solve urgently;

[0003] At the same time, the existing electric winch brake assembly is realized by the friction between the torsion spring and the steel sleeve. The friction will generate heat, which will increase the temperature of the motor, and then superimpose the heat generated by the motor itself. The heat will easily reduce the power of the motor, or even burn the motor. At the same time, the existing electric winch has a clutch-operating handle (some of which are pull pins), and the handle must be pulled first when releasing the rope, which is inconvenient to operate, cannot quickly release the rope, and is easy to damage

Images