一种三向加载装置及方法

By designing a three-dimensional loading device and using spherical clearance fit and rod end spherical bearings, the problem that traditional test devices cannot accurately simulate the compound motion of spherical bearings was solved, and more accurate test evaluation results were achieved.

CN116754229BActive Publication Date: 2026-07-17CHINA RAILWAY INSPECTION & CERTIFICATION (CHANGZHOU) LOCOMOTIVE & ROLLING STOCK PARTS INSPECTION STATION CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA RAILWAY INSPECTION & CERTIFICATION (CHANGZHOU) LOCOMOTIVE & ROLLING STOCK PARTS INSPECTION STATION CO LTD
Filing Date
2023-06-26
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional spherical plain bearing testing equipment cannot accurately simulate the interaction between loads in the X, Y, and Z directions and the over-constraint problem. It also cannot simulate the axial rotation, tilting oscillation, and combined motion of the inner ring, resulting in inaccurate test results.

Method used

Design a three-axis loading device that uses a spherical bottom, a cover plate with a spherical groove, and a loading disk. Through spherical clearance fit, loads in the Z, X, and Y directions can be applied independently. The inner ring can rotate around the X-axis and swing around the Y-axis by using a rod end spherical bearing, thus avoiding mutual interference between loads.

Benefits of technology

It achieves a more accurate simulation of the force and motion of spherical plain bearings in actual operation, and can independently apply loads in the X, Y, and Z directions to meet static and fatigue loading requirements. The structure is simple, flexible and versatile.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明提供了一种三向加载装置及方法,用于对受试件进行性能试验考核,所述三向加载装置包括底座,其上固定设置有外圈;第一加载装置,一端固定设置在内圈上,用于向所述内圈施加Z向球面载荷;第二加载装置,一端与所述第一加载装置的加载盘的左 / 右端和前 / 后端连接,用于向所述内圈施加X向和Y向载荷。本发明通过设计第一加载装置,可以实现Z向的球面加载技术,使得Z向加载与X向和 / 或Y向加载互不影响;通过在第二加载装置中运用杆端关节轴承,可以实现受试件的绕X轴转动和绕Y轴摆动,可以有效还原受试件的运动自由度;本装置结构简单,灵活通用性强,不仅可以满足受试件的静态加载需求,同时可实现X、Y、Z三个方向上的疲劳加载。
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