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CRH train gearbox bearing clearance vibration endurance test bench and test method

A bearing clearance and durability testing technology, applied in the testing of mechanical parts, the testing of machine/structural parts, measuring devices, etc., can solve problems affecting driving safety, sufficient verification, bearing damage, etc., and achieve high simulation authenticity, The effect of improving accuracy and increasing realism

Pending Publication Date: 2021-09-24
JILIN TEACHERS INST OF ENG & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the standard requires the detection of the state of the gearbox bearing, and the key indicator to reflect the state of the bearing is the size of the clearance value. If the clearance is too large or too small, it will cause early damage to the bearing and seriously affect the driving safety of the EMU. At present, the existing test bench technology only conducts verification tests on routine test items, and does not conduct deterioration tests on bearings. It is also difficult to accurately predict the life of bearings, and it also affects driving safety.
At present, there is little introduction of domestic durability test equipment specifically for the bearing clearance of EMU gearboxes, and there is even no durability test equipment that can perform deterioration tests on bearings, so it cannot satisfy the full verification of the performance of various EMU gearboxes.

Method used

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  • CRH train gearbox bearing clearance vibration endurance test bench and test method
  • CRH train gearbox bearing clearance vibration endurance test bench and test method
  • CRH train gearbox bearing clearance vibration endurance test bench and test method

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Such as Figure 1-Figure 2 As shown, the present embodiment provides a bearing clearance vibration durability test bench 100 for the gear box of an EMU, including a load motor 2, a drive motor 1, a main torque sensor 311, an accompanying torque sensor, a main test gearbox system 3, and an accompanying test gear The box system 4 and the transverse excitation vibration platform 53, the load motor 2 can drive the gear box system 4 to rotate, the drive motor 1 is used to drive the main test gear box system 3 to rotate, and the drive motor 1 and the load motor 2 drive the main test gear respectively The box system 3 and the accompanying gearbox system 4 rotate in the opposite direction, and the main test gearbox system 3 is connected with the accompanying gearbox system 4 to realize the transmission of torque. The accompanying gearbox system 4 is used to provide resistance, and through the load motor 2. Output different torques according to the test requirements, and then si...

Embodiment 2

[0048] This embodiment provides a method for testing the durability of the clearance vibration of the gear box bearing of the multiple train unit, using the test bench for the bearing clearance vibration durability of the gear box of the multiple train unit in Example 1, including the following steps:

[0049] S1: Turn on the driving motor 1, the load motor 2 is not powered, and make the driving motor 1 drive the main test gearbox system 3 to rotate, the main test gearbox system 3 drives the accompanying test gearbox system 4 to rotate, and the accompanying test gearbox system 4 drives the load The motor 2 rotates to carry out the no-load test to verify the working status of each component and ensure that the test is carried out under the premise that each component can work normally;

[0050] S2: keep the drive motor 1 turned on, and turn on the load motor 2, so that the drive motor 1 drives the main test gearbox system 3 to rotate, and the load motor 2 drives the test gearbox...

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Abstract

The invention discloses a CRH train gearbox bearing clearance vibration endurance test bench and a test method, and relates to the technical field of CRH train gearbox tests.The CRH train gearbox bearing clearance vibration endurance test bench comprises a load motor, a driving motor, an accompanying gearbox system and a transverse excitation vibration platform, and the load motor can drive the accompanying gearbox system to rotate; the driving motor is used for driving the main test gear box system to rotate, the auxiliary test gear box system is used for being in transmission connection with the main test gear box system, and the transverse excitation vibration platform is used for fixing the main test gear box system and the auxiliary test gear box system. And the transverse excitation vibration platform can drive the main test gear box system and the auxiliary test gear box system to reciprocate along the axial direction of the main test gear box system. According to the CRH train gearbox bearing clearance vibration endurance test bench and the test method, the resistance during driving can be simulated, and the lateral wind during driving can also be simulated.

Description

technical field [0001] The invention relates to the technical field of gear box tests for multiple train sets, in particular to a test bench and a test method for bearing clearance vibration durability of a gear box for multiple train sets. Background technique [0002] At present, the content of the type test adopted by domestic EMU gearboxes is generally carried out in accordance with the standards of "TB / T 3134 Driving Gearboxes for EMUs" and "TJ / CL 277 Provisional Technical Conditions for Composition of EMU Gearboxes", and the test content involves environmental simulation. test, loading test and overspeed test. However, the standard requires the detection of the state of the gearbox bearing, and the key indicator to reflect the state of the bearing is the size of the clearance value. If the clearance is too large or too small, it will cause early damage to the bearing and seriously affect the driving safety of the EMU. At present, the existing test bench technology onl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/028G01M13/045G01B21/16
CPCG01M13/028G01M13/045G01B21/16
Inventor 王兴宇苑恒轶田梅李毅毛春昱
Owner JILIN TEACHERS INST OF ENG & TECH