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Full-life attenuation simulation experiment device for traction motor bearing of high-speed train

A technology for high-speed EMUs and traction motors, which is applied in the direction of mechanical bearing testing, measuring devices, and testing of mechanical components, and can solve problems such as the decline in the life of traction motor bearings and the lack of simulation test devices for high-speed EMUs

Inactive Publication Date: 2019-10-18
CRRC YONGJI ELECTRIC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention solves the problem of the lack of a simulation test device for the traction motor bearing of a high-speed EMU, and provides a simulation test device for the full-life decline simulation test device of the traction motor bearing of a high-speed EMU

Method used

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  • Full-life attenuation simulation experiment device for traction motor bearing of high-speed train
  • Full-life attenuation simulation experiment device for traction motor bearing of high-speed train
  • Full-life attenuation simulation experiment device for traction motor bearing of high-speed train

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Embodiment Construction

[0016] The high-speed EMU traction motor bearing full-life decline simulation test device includes a cylinder body 1. The test ball bearing support seat is installed at the left end of the cylinder body 1. The test ball bearing 2 is located in the test ball bearing support seat and is lubricated with grease. The right end of the cylinder body 1 is installed. There is a test roller bearing support seat. The test roller bearing 3 is located in the test roller bearing support seat and is lubricated with grease. The two ends of the test shaft 4 are respectively supported on the test ball bearing 2 and the test roller bearing 3. The test ball bearing 2 The distance between the test roller bearing and the test roller bearing 3 is consistent with the distance between the bearings at both ends of the shaft of the traction motor (one end is a ball bearing and the other end is a roller bearing), thereby ensuring that the test ball bearing and the test roller bearing are subjected to The ...

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Abstract

The invention relates to a bearing lifetime simulation experiment device, in particular to a full-life attenuation simulation experiment device for a traction motor bearing of a high-speed train. By the full-life attenuation simulation experiment device, the problem that the traction motor bearing of the high-speed train lacks of the simulation experiment device is solved. The typical structure configuration of the traction motor bearing is simulated, a sealing lubrication structure is designed, a load is applied to the bearing by a loading oil cylinder, an experiment load is used for equallyloading according to load borne by the traction motor bearing running under a rated working condition, grease lubrication is employed, vibration and temperature signal acquisition, recording and processing of the experiment bearing are completed by a data acquisition system, and monitoring and control of the experiment process are achieved by matching of a computer system. The lifetime simulationexperiment device which is adjustable in radial and axial load, has grease lubrication and can be used for simulating structure configuration of the traction motor bearing of the high-speed train is given out, so that the experiment bearing structure, the sealing lubrication structure and a product are maintained consistency, and the truth and the accuracy of the acquired life attenuation rule ofthe traction motor bearing are ensured.

Description

technical field [0001] The invention relates to a bearing life simulation test device, in particular to a high-speed EMU traction motor bearing full life decay simulation test device. Background technique [0002] In the operation of high-speed railway EMUs, the traction motor bearing is a key component for safe operation, and it is also one of the most easily damaged components. However, my country's bearing industry lacks corresponding key experimental technologies and special equipment, and seldom conducts research on the full-life decline test of high-speed railway traction motor bearings, and fails to establish a bearing full-life decline curve and obtain the law of decline. [0003] Most of the current rolling bearing life testing machines are only suitable for the durability life of the bearing itself. Most of the bearings of the same type are distributed on both sides of the testing machine for life testing, and the lubrication is carried out by means of circulating ...

Claims

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Application Information

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IPC IPC(8): G01M13/04G01M13/045
CPCG01M13/04G01M13/045
Inventor 李伟雷平振石永进
Owner CRRC YONGJI ELECTRIC CO LTD
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