A performance testing system for connecting rod big-end needle roller bearings

Abstract

The invention discloses a system for detecting the performance of a needle roller bearing of a connecting rod big end. The system comprises a bearing inlet and outlet mechanism assembled on a system rack, an inertia wheel driving mechanism, a bearing detection mechanism and a data acquisition processor, wherein the bearing detection mechanism comprises a detection mandrel fixedly arranged on the rack and a bearing detection sleeve suspended on the detection mandrel; and the bearing detection sleeve comprises the needle roller bearing to be detected and a detection inertia wheel sleeved with the needle roller bearing. The novel detection system is provided for an inner and outer circle-free needle roller bearing of the connecting rod big end and the shortcomings of a method for detecting the performance of the needle roller bearing in the prior art, detection results are more comprehensive and accurate, and the influence of the quality of the needle roller bearing on assembly and the performance of an engine is eliminated.

Description

technical field [0001] The invention relates to a bearing detection system, in particular to a performance detection system of a connecting rod big-end needle roller bearing. Background technique [0002] As we all know, the connecting rod big end needle roller bearing is an important part of the engine, its performance will directly affect the normal operation of the engine, and the needle roller bearing without inner and outer rings is usually used in the engine connecting rod big end, which is harmful to the rolling The quality of the needle bearings imposes stricter requirements. [0003] Usually, the guide contact surface of the cage and the structure and size of the cage are relatively small, which can easily cause the needle roller to tilt during the guiding process, which will cause the outer ring to shift, which will affect the accuracy of the measurement results and product assembly. In addition, traditional measurement methods are limited to the detection of axia...

AI Technical Summary

Problems solved by technology

[0003] Usually, the guide contact surface of the cage and the structure and size of the cage are relatively small, which can easily cause the needle roller to tilt during the guiding process, which will cause the outer ring to shift, which will affect the accuracy of the measurement results and product assembly. In addition, traditional measurement methods are limited to the detection of axial drift of needle roller bearings, while other detection indicators such as noise and vibration are not easy to detect

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