Combined locking device

Abstract

The invention belongs to a locking device, in particular to a combined locking device used for a planetary redactor and a speed changer, aiming to provide an effective locking device for preventing a rotating piece from axially moving, which can be used for not only effectively limiting the axial movement of the rotating piece, but also meeting requirement on compactedness. The combined locking device comprises a locking screw cap, a large locking fluted disc, a large locking clamp ring, a small locking fluted disc and a small locking clamp ring, wherein inner teeth of the large locking fluted disc and outer teeth of the locking screw cap are engaged; the large locking clamp ring is arranged in a slot of a circular tooth gear to press the large locking fluted disc; the rotation of the locking screw cap is limited by the large locking clamp ring and the large locking fluted disc so as to effectively prevent the locking screw cap from loosing; an outer thread of a ball bearing block and an inner thread of an input shaft are matched so as to limit the axial movement of a tool bolt; inner teeth of the small locking fluted disc and outer teeth of the ball bearing block are engaged; and the small locking clamp ring is arranged in a slot of the small locking clamp ring and the locking screw cap so as to limit the rotation of the ball bearing block.

Description

technical field [0001] The invention belongs to the technical field of locking devices, and in particular relates to a novel combined locking device used for speed reducers and transmissions. Background technique [0002] With the advancement of technology, the speed of planetary reducers and transmissions is gradually increasing, and their structures are becoming more and more compact. Some rotating parts need to limit axial movement, otherwise they will cause failure. For example, during the braking process, it is necessary to ensure that the inner hub of the brake (the arc gear of the reducer) does not move in the axial position, otherwise the wear of the friction plate will be aggravated. Therefore, the axial position of the arc gear must be fixed to prevent The arc gear moves axially, otherwise it will affect the performance of the whole vehicle. Under the action of inertial force, the early locking devices tend to loosen and fail to meet the locking requirements. Co...

AI Technical Summary

Problems solved by technology

Under the action of inertial force, the early locking devices tend to loosen and fail to meet the locking requirements

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