Electric screw driver with adjustable output torque

An electric screwdriver, output torque technology, used in screwdrivers, power tools, wrenches, etc., can solve the problems of motor damage, consuming operator's physical strength, and severe motor vibration.
CN105500263AInactive Publication Date: 2016-04-20宁波中旺工具有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
宁波中旺工具有限公司
Publication Date
2016-04-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an electric screw driver with an adjustable output torque. The electric screw driver is characterized in that an adjusting ring is arranged on the front end of a shell; a threaded ring is arranged in the adjusting ring; the front end surface of an annular gear is a rugged torque adjusting surface; a rolling ball which leans against the torque adjusting surface is arranged in the shell; the rolling ball leans against a stop pin; a stop plate is arranged on the front end of the stop pin; a spiral supporting spring is arranged between the stop plate and the threaded ring. According to the electric screw driver disclosed by the invention, the threaded ring is enabled to move by rotating the adjusting ring, and the spiral supporting spring is enabled to be compressed or stretch, so that the purpose of mechanically adjusting a screw driver head among different output twisting forces can be achieved.
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Description

technical field

[0001] The invention relates to an electric tool, in particular to an electric screwdriver with adjustable output torque. Background technique

[0002] An electric screwdriver is a hand tool, generally having a housing and a screwdriver arranged on an output shaft. Widely used in industrial and household fields, usually used to install or remove threaded fasteners, apply torque or rotation to workpieces.

[0003] The existing electric screwdriver includes a housing, in which a motor is set, and the housing is used as a position for the operator to hold at the same time. A screwdriver is mounted on the front end of the housing. The battery drives the motor, and the motor drives the screwdriver to rotate through the transmission part. However, there are many defects in the existing electric screwdrivers, such as poor durability of the battery, frequent maintenance, severe vibration of the motor during work, which seriously consumes the physical strength of the...

Claims

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