High speed train bearing performance testing device

Abstract

The invention discloses a high speed train bearing performance testing device. The high speed train bearing performance testing device includes a base frame, main shafts, main shaft supporting bearingseats, an axial loading assembly and a radial loading assembly; the main shafts are arranged at the top of the base frame through the two main shaft supporting bearing seats and is driven by a belt of a motor; to-be-tested high speed train bearings placed in bearing boxes are correspondingly mounted on the main shafts of the outer sides of the two bearing seats; the axial loading assembly is usedfor applying axial loads on the to-be-tested high speed train bearings, the radial loading assembly is used for applying axial loads on the to-be-tested high speed train bearings; the axial loading assembly includes an axial loading frame and axial loading hydraulic cylinders, the axial loading hydraulic cylinders are connected between the bearing boxes and the axial loading frame correspondingly, and pressure sensors are correspondingly mounted between the axial loading hydraulic cylinders and the bearing boxes; the radial loading assembly includes radial loading hydraulic cylinders and force transmission frames, piston rods of the radial loading hydraulic cylinders are connected with the bearing boxes through the force transmission frames, and pull-press sensors are mounted on the forcetransmission frames; and vibration generators are correspondingly mounted at the bottom ends of the axial loading hydraulic cylinders and the bottom ends of the radial loading hydraulic cylinders.

Description

technical field [0001] The invention belongs to the technical field of bearing performance testing, in particular to a high-speed train bearing performance testing device. Background technique [0002] The running speed of high-speed trains has reached more than 250km / h, and high-speed train bearings are one of the most easily damaged train components as running support components. Therefore, the performance indicators such as precision, life and reliability of high-speed train bearings play a vital role in the safe operation of high-speed trains. The performance indicators of bearings also put forward higher requirements, and it is necessary to test the performance of high-speed train bearings. [0003] At present, the devices that can be used to test bearing performance are generally low-speed bearing test devices, which cannot meet the performance test of high-speed bearings. If the test speed is forcibly increased, the service life of the test device will be seriously r...

AI Technical Summary

Problems solved by technology

[0003] At present, the devices that can be used to test bearing performance are generally low-speed bearing test devices, which cannot meet the performance test of high-speed bearings. If the test speed is forcibly increased, the service life of the test device will be seriously reduced, and the performance index test results are reliable. Sex will also be severely reduced

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