A pin-loading mechanism for a universal joint bearing

By using a gripping device that combines silicone pressure plates and air pressure difference, the problem of indentation on the surface of the needle rollers during the installation of universal joint bearings is solved, achieving firm fixation and surface protection of the needle rollers, and improving the service life and reliability of universal joint bearings.

CN121916244BActive Publication Date: 2026-05-26晋江市源德机械制造有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
晋江市源德机械制造有限公司
Filing Date
2026-03-25
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing universal joint bearing pin mounting mechanisms are prone to causing indentations on the needle roller surface due to excessive clamping force during installation, affecting service life and reliability.

Method used

The gripping device combines a silicone pressure plate and air pressure difference. The high elasticity of the silicone pressure plate and the suction generated by the air pressure difference fix the needle rollers, avoiding indentations when in direct contact. At the same time, the buffer connection and anti-slip inner sleeve absorb excessive pressure, ensuring a smooth surface for the needle rollers.

Benefits of technology

It effectively prevents premature wear on the needle roller surface, improves the service life and reliability of universal joint bearings, and ensures assembly accuracy and smoothness.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of universal joint technology, specifically to a pin-installing mechanism for universal joint bearings. The mechanism includes a processing table and a support base fixedly mounted on the bottom surface of the processing table. A pin roller storage box is fixedly installed on the processing table, and a fixed bracket is also fixedly installed on the processing table. A horizontal push cylinder is provided on the top of the fixed bracket, and a downward gripping device is provided on the horizontal push cylinder. A housing fixing component is also provided on the processing table. During pin installation, the mechanism prevents indentations on the pin rollers, avoiding premature wear due to scratches and abrasions on the surface of the pin rollers after installation, thus ensuring lifespan and reliability.
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