an electric screwdriver

Abstract

The invention discloses an electric screwing tool which comprises a sleeve port, a sleeve shaft, a harmonic gear outer gear ring, a transmission shaft, a driving motor and a shell. The driving device is arranged in the shell. The shell is provided with a control switch for controlling the driving motor. The harmonic gear outer gear ring is connected with the driving motor through the transmission shaft. The sleeve shaft is connected with the harmonic gear outer gear ring through a bearing. The sleeve shaft is sleeved with a spring and sleeved with the sleeve port. The spring is connected with the sleeve shaft and the sleeve port. In this way, the electric screwing tool can rapidly unscrew a rust nut, does not need to be manually aligned to the nut, and is high in efficiency, small in size, large in moment of force and applicable to be carried by a vehicle as a standby.

Description

technical field [0001] The invention relates to the field of mechanical engineering, in particular to an electric screwdriver. Background technique [0002] There will always be some big or small problems in the long-term use of mechanical products. However, some nuts will be rusted due to long-term use and difficult to unscrew during the maintenance process. In the past, the method of lengthening the action arm had the disadvantages of difficulty in applying force, insufficient force, and high risk. If the method of screwing the nut with a jackhammer was used, there were problems of large mass and inconvenient movement. And because it is difficult to keep the hexagonal direction of each nut consistent, usually the nuts must be manually aligned before the screwdriver is used, which wastes a lot of time. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide an electric screwdriver, which can quickly unscrew rusted nut...

AI Technical Summary

Problems solved by technology

[0002] Mechanical products will always have some big or small problems during long-term use. However, some nuts will be rusted due to long-term use during the maintenance process and it is difficult to unscrew them.

In the past, the method of lengthening the action arm had the disadvantages of difficulty in applying force, insufficient force, and high risk. If the method of screwing the nut with the jackhammer was used, there were problems of large mass and inconvenient movement.

And because it is difficult to keep the hexagonal direction of each nut consistent, it is usually necessary to manually align the nut before using the screwdriver, which wastes a lot of time

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