Electric spanner with variable torsional moment

Abstract

An electric wrench with convertible torque is composed of casing, motor with power axle, flywheel module connected to said power axle, and output axle linked with said flywheel module. Said flywheel module consists of a clutch unit, counterweight flywheel, hollow flywheel unit and reverse flywheel unit. It has the increased forward and reverse tensional forces.

Description

Convertible torque electric wrench technical field The invention relates to the field of electric tools, in particular to a power transmission structure of an electric wrench. Background technique The output torque of the existing electric wrench on the market is constant. In the process of vehicle tire replacement, the friction force of fastening nut and loose nut is different, and the torque required by various vehicles is also different. Therefore, different vehicle models need different output torque. At present, the existing electric wrench on the market is in the process of starting and accelerating, which is overloaded and working with super large current, which will cause the fuse of the vehicle to burn out and shorten the service life of the motor. It is necessary to have a method that does not overload and does not generate super large current during the process of starting and accelerating. buffer device. Contents of the invention The object of the presen...

AI Technical Summary

Problems solved by technology

At present, the existing electric wrench on the market is in the process of starting and accelerating, which is overloaded and working with super large current, which will cause the fuse of the vehicle to burn out and shorten the service life of the motor. It is necessary to have a method that does not overload and does not generate super large current during the process of starting and accelerating. buffer device

Images