A test device for dynamic and static performance of oil film bearings

Abstract

The present invention relates to an oil film bearing static and dynamic performance test device. The device comprises a test bed body, and two bearing pedestals are arranged at intervals on the test bed body; coaxial bearing installing holes are respectively arranged on the two bearing pedestals; the two bearing installation holes are internally respectively provided with oil film bearings, and atest shaft is in clearance rotation fit with the internal portions of the two oil film bearings; one end of the test shaft is connected with a rotation driving device; the test shaft is located on a shaft body between the two oil film bearings, and a loading device acts on the test shaft; the device also comprises a throttling device which is connected with the two oil film bearings through an oiltube; the device also comprises a hydraulic control system configured to control oil supply of the oil film bearings, the loading device and the throttling device; the device also comprises an electronic control system consisting of two displacement sensors and a computer, the two displacement sensors are uniformly distributed along the circumference of the test shaft at 90 degrees, and detectionsignals are input into the computer. The oil film bearing static and dynamic performance test device can detect dynamic performances such as oil chamber pressure, temperature of flow of the oil filmbearings in conditions with different rotation speeds, different types and sizes of loads and different throttling modes and shaft center movement locus of the test shaft.

Description

technical field [0001] The invention belongs to the technical field of testing mechanical parts in physical testing, and in particular relates to a dynamic and static performance testing device for an oil film bearing. Background technique [0002] As a kind of precision bearing, oil film bearing is widely used in low-speed, heavy-duty, precision mechanical instruments and equipment because of its good fluid lubrication effect. [0003] However, in actual use, accidents of bearing burning pads often occur due to improper use and maintenance, resulting in damage to bearings or rotating shafts. This is also because in the current technology, the research on the performance of oil film bearings is mainly based on theoretical research, lack of experimental verification of theoretical research results, so that theoretical research results cannot be effectively used to guide actual production; the current test for oil film bearings The research is very scarce, the test device is ...

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved in the present invention is to provide a dynamic and static performance test device for oil film bearings, so as to avoid the incomplete performance detection of the oil film bearings by the existing test devices, the lack of dynamic performance detection, and the lack of different sections. The problem of oil film bearing performance detection under the flow mode can simulate the actual working conditions, and the system can comprehensively test the performance of the oil film bearing under dynamic and static loading conditions and different throttling modes.

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