End tooth structure, application and machining method

By employing a multi-segment continuous curved surface design with different curvatures and a gradually narrowing wedge-shaped locking space in the end face tooth structure, the stress concentration problem was solved, uniform stress distribution and lubrication optimization were achieved, and the load-bearing capacity and service life of the transmission device were improved.

CN120868181APending Publication Date: 2025-10-31JIANGMEN YUNCHENG INVESTMENT PARTNERSHIP (LLP)
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Patent Information

Application Number
CN202510835439.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-20
Publication Date
2025-10-31

AI Technical Summary

Technical Problem

Existing end-face tooth structures suffer from stress concentration in high-precision transmission devices, leading to reduced load-bearing capacity and shortened service life. In particular, they are prone to fatigue fracture under frequent start-up and impact load conditions.

Method used

The design employs a continuous curved surface with multiple segments of different curvatures to form a multi-point contact locking unit and indexing unit. Combined with a tapered wedge-shaped locking space and a spherical transition structure, an array of pits is set to achieve uniform stress distribution and optimized lubrication.

Benefits of technology

It improves contact area and stability, enhances locking force and torque resistance, extends service life, reduces wear risk, and ensures high-precision positioning and equipment reliability.

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Abstract

The invention discloses an end tooth structure, an application and a machining method, and the end tooth structure comprises a locking unit which comprises an outer fluted disc, and the outer fluted disc is provided with a plurality of first meshing teeth; the indexing unit comprises a fixed fluted disc, the fixed fluted disc is provided with a plurality of second meshing teeth, every two adjacent second meshing teeth on the fixed fluted disc form a first locking space, the surfaces of the first meshing teeth and the surfaces of the second meshing teeth at least comprise two sections of continuous curved surfaces with different curvatures, and the first meshing teeth are matched with the second meshing teeth; when the first meshing teeth are meshed with the second meshing teeth, at least more than two stress contact points are formed. Uniform distribution of stress can be achieved, and the service life of the end tooth structure is prolonged.
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