High/low-temperature impact life testing device especially for bearing

Abstract

The invention discloses a kind of test apparatus of high and low temperature impact lifetime special used for bearings. The device use heat regenerative area, test and cold storage area three-layer structural style. In the test area installed with train institution drive by belt, can be used for life testing of multi-bearing at the same time. The temperature of the test area was regulated by the control system comprised of circulating air hole connecting the heat regenerative area and cold storage area, governor valve, temperature sensor and control circuit, through the circulating mechanism of cold and hot air flow to implement the temperature control of the test area, so as to achieve the simulation the temperature change in actual status of bearing purposes. Through the jockey pulley regulating mechanism set in test area to compensate the load swing of belt driving system due to temperature changes in test area, and the tested bearing can maintain constant load.

Description

technical field [0001] The invention relates to a high and low temperature impact test device for bearings, in particular to a special high and low temperature impact life test device for bearings. Background technique [0002] Bearings are widely used basic components in mechanical products and play a vital role in ensuring product quality. According to statistics, in rotating machinery using rolling bearings, about 30% of mechanical failures are caused by bearing failure. For this reason, people have paid more and more attention to the quality and reliability of bearings, and put the life test and evaluation of bearings on the agenda, especially for some bearings working in harsh environments, the life test has become the key point of quality control. An essential and important link. [0003] However, according to the survey, it is found that the development of bearing life test equipment is relatively lagging behind. At present, only some bearing life tests in conventio...

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Problems solved by technology

[0003] However, according to the survey, it is found that the development of bearing life test equipment is relatively lagging behind. At present, only some bearing life tests in conventional environments can be carried out, and some bearings that work in harsh environments and have a significant impact on product quality (such as automobile bearings, etc.) ) There is still a lack of effective test methods and test equipment for life tests in extreme environments. At present, there is no high and low temperature impact test equipment specifically for bearings on the market

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