IMPACT TOOL

Abstract: an impact tool includes a motor shaft; an output shaft used for outputting power and rotating about an output axis; an impact mechanism for providing an impact force; and a transmission mechanism for transmitting power between the motor shaft and the impact mechanism. the transmission mechanism includes a multi-stage transmission assembly, at least one stage of transmission assembly in the multi-stage transmission assembly has an adjustable transmission ratio, and an output transmission ratio of the multi-stage transmission assembly is greater than 1. a rotational speed and torque of the tool are adjusted mechanically so that output power of an electric motor is unchanged, and motor efficiency is improved to a certain extent.

Inventor(s): Yuyi Zheng, Shaobo Liu, Shubin Tong, Di Wu

CPC Classification: B25F5/001 (Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for)

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