adjustable torque shaft

Abstract

The invention discloses a rotating shaft with adjustable torsion, which comprises a concave bracket, a female shaft located in the bracket and two male shafts located on both sides of the bracket, and an OD channel is respectively arranged on the side walls of the bracket. A blind hole is provided on both ends of the female shaft. The two blind holes are in one-to-one correspondence with the two OD through holes. The front surface of the male shaft is a cylindrical protrusion. The cylindrical protrusions on the two male shafts are respectively inserted through the OD through holes into the blind holes at both ends of the female shaft. The male shaft is provided with a machine screw inserted from its rear surface, and the cylindrical protrusions are The front end is split to form a crack that runs through the cylindrical protrusion transversely. The invention has the advantages of simple processing and low production cost.

Description

technical field [0001] The invention relates to the field of improving the structure of a rotating shaft, in particular to an in-line rotating shaft with adjustable torsion. Background technique [0002] In folding electronic devices, such as notebook computers, DV cameras, etc., the opening or closing of the screen and the device body is generally achieved by setting a rotating shaft, and at the same time, it is necessary to rely on the torque of the rotating shaft to support the weight of the screen so that the screen is relatively The body is kept at a certain screwing angle. In general, the rotating shaft is formed by matching the male shaft and the female shaft. The torque of the rotating shaft depends on the interference fit between the male shaft and the female shaft. It is necessary to set the male shaft and the female shaft according to the torque in the fit. With tolerance, in the actual processing, the manufacturing precision of the male shaft and the female shaf...

AI Technical Summary

Problems solved by technology

In general, the rotating shaft is formed by matching the male shaft and the female shaft. The torque of the rotating shaft depends on the interference fit between the male shaft and the female shaft. It is necessary to set the male shaft and the female shaft according to the torque in the fit. Fitting tolerance, in the actual processing, the manufacturing precision of the male shaft and the female shaft is high, and the productivity is low. At the same time, the torque cannot be adjusted according to the actual installation situation during installation, and the product yield is low.

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