Variable load rotating shaft testing machine

Abstract

The invention relates to a mechanical part performance testing device, in particular to a variable load rotating shaft testing machine. The invention designs a variable load rotating shaft testing machine including a static mechanical module, a dynamic simulation mechanical module and a sensor acquisition module, the working state of the rotating shaft can be simulated, multi-direction and multi-force dynamic load working simulation tests can be carried out on the rotating shaft, and meanwhile, the working performance of the matched bearing part is tested, so that the accurate test data can beprovided for the design typification of the rotary shaft and the selection of the bearing model.

Description

technical field [0001] The invention relates to a performance testing device for mechanical parts, in particular to a variable load rotating shaft testing machine. Background technique [0002] The rotating shaft is a necessary part of many mechanical equipment. The performance index of the rotating shaft often determines the working reliability, stability, efficiency and design size of the mechanical equipment. Especially for the rotating shaft bearing load, its performance requirements are One of the most important design metrics. Conventional rotating shaft design is often calculated based on the maximum fixed load it bears to determine the key dimensions, and a certain load test is carried out after the sample is manufactured. Due to the limitations of test conditions and equipment, accurate test data is often not obtained. For example, the shaft breaking incidents that often occur in some cars may be caused by the unreasonable design of the size of the rotating shaft. ...

AI Technical Summary

Problems solved by technology

Conventional rotating shaft design is often calculated based on the maximum fixed load it bears to determine the key dimensions, and a certain load test is carried out after the sample is manufactured. Due to the limitations of test conditions and equipment, accurate test data are often not obtained

For example, the shaft breaking incidents that often occur in some cars may be caused by the unreasonable design of the size of the rotating shaft. During the load test, too much attention was paid to the static load and the influence of dynamic load in some extreme cases was ignored, and the dynamic load could not be detected during the test. Performance defects; another example is some construction machinery with the same technical indicators, some are bulky, some are compact and small, one of the reasons is that the size design of the rotating shaft is unreasonable, and a large redundancy is used to ensure reliability. coefficient, but loses work efficiency and miniaturization indicators, and consumes a lot of energy

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