A backlash-free gear assembly

By combining the main gear and the auxiliary gear, and utilizing the cooperation of the transmission components and the elastic pushing assembly, the problems of poor following performance and wobbling caused by backlash in gear transmission are solved. This achieves a simple, compact, and low-cost backlash elimination effect, improving motion accuracy and versatility.

CN117662717BActive Publication Date: 2026-06-30海克斯康制造智能技术(青岛)有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
海克斯康制造智能技术(青岛)有限公司
Filing Date
2024-01-19
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing gear transmissions have meshing backlash between gears and between gears and racks, which leads to poor following performance and wobbling during the movement of the mechanism, affecting accuracy. Moreover, existing backlash elimination structures are complex, space-consuming, and costly.

Method used

It adopts a main gear and auxiliary gear structure. Through the combination of transmission components, adjustment components and elastic pushing components, and by utilizing the cooperation of elastic elements and protrusions, the sliding component can move along the axial direction of the main gear, and the rotation of the auxiliary gear can be adjusted to eliminate backlash.

Benefits of technology

With its simple structure, small footprint, and low cost, it improves the following performance and motion accuracy of the motion mechanism, adapts to meshing components with different tooth pitches, and has good versatility.

✦ Generated by Eureka AI based on patent content.

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    Figure CN117662717B_ABST
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Abstract

This invention discloses a backlash-free gear assembly, comprising: a primary gear; a secondary gear, coaxially arranged with the primary gear and rotatable relative to the primary gear, the secondary gear having a first protrusion; an adjusting component for adjustment; a sliding component with a second protrusion formed thereon; an elastic pushing component disposed between the adjusting component and the sliding component, capable of being pushed to move when the adjusting component moves linearly, thereby applying an elastic thrust to the sliding component to move it along the axial direction of the primary gear; and an elastic element disposed between the sliding component and the secondary gear; wherein, when the adjusting component is activated, it can push the elastic pushing component to move and drive the sliding component to move, such that the sliding component, through the second protrusion, pushes the first protrusion to drive the secondary gear to rotate relative to the primary gear. The backlash-free gear assembly proposed in this invention has a simple structure, occupies little space, and is low in cost.
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