A half-round sleeve assembly grease injection mechanism

By designing a semi-circular sleeve with a grease injection mechanism, the problem of inconvenient oil injection for the semi-copper sleeve was solved, achieving efficient double-sided oil injection operation and improving production efficiency and control of oil injection volume.

CN224315898UActive Publication Date: 2026-06-02WUXI AVANT COURIER AUTOMATION TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI AVANT COURIER AUTOMATION TECH
Filing Date
2025-06-11
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

During the assembly of vacuum circuit breakers, the lack of specialized tooling makes the oil injection operation of the positive and negative copper bushings inconvenient, and the amount of oil injected is difficult to control, resulting in low production efficiency.

Method used

Design a semi-circular sleeve with grease injection mechanism, including an upper grease injection component and a lower grease injection component. The cylinder drives the fixture plate to drive the grease injection head to inject grease on both sides of the semi-copper sleeve. The mold base and grease injection shaft are combined to realize the positioning and grease injection of the semi-copper sleeve.

Benefits of technology

This technology enables simultaneous oil injection on both sides of the semi-copper bushing, simplifying operation, improving production efficiency, and ensuring control over the amount of oil injected and the quality of processing.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224315898U_ABST
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Abstract

This utility model relates to the field of grease injection technology for semi-circular copper sleeves, providing a grease injection mechanism for semi-circular sleeve assembly. It includes an upper grease injection assembly and a lower grease injection assembly. The upper grease injection assembly includes a jig plate driven by a cylinder for lifting and lowering. A first grease injection head and a second grease injection head are fixedly installed on the left and right sides of the bottom of the jig plate, respectively. A reverse copper sleeve mold base and a positive copper sleeve mold base are respectively provided on the left and right sides of the top of the support plate. During grease injection, the reverse and positive semi-circular copper sleeves are placed in their respective mold bases. The cylinder drives the jig plate to descend, causing the first and second grease injection heads to descend to a designated height. Then, oil is injected into the upper surfaces of the two semi-circular copper sleeves through the injection holes of the first and second grease injection heads, while oil is injected into the lower surfaces of the two semi-circular copper sleeves through the injection ports. This allows for simultaneous and complete grease injection of both sides of the two semi-circular copper sleeves in one operation. The operation is simple and convenient, with high processing efficiency, improving enterprise benefits.
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