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Railway axle box bearing routine testing machine and bearing routine testing method

A technology for axle box bearings and routine testing, which is applied in mechanical bearing testing, testing of mechanical components, testing of machine/structural components, etc. It can solve the problem of bearing installation accuracy affecting the accuracy of test results, bearing disassembly and assembly difficulties, and inapplicability Routine test of quick dismounting bearings, etc.

Active Publication Date: 2021-06-08
中浙高铁轴承有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]However, the bearing disassembly and assembly in this technical scheme is difficult, so it is not suitable for the routine test of the bearing. At the same time, the installation accuracy of the bearing will directly affect the accuracy of the test results, so it is not suitable for Routine testing of quick dismounted bearings

Method used

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  • Railway axle box bearing routine testing machine and bearing routine testing method
  • Railway axle box bearing routine testing machine and bearing routine testing method
  • Railway axle box bearing routine testing machine and bearing routine testing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Such as Figure 1-2 As shown, the railway axle box bearing routine testing machine includes a frame 1 and two groups of radial loading systems 2 symmetrically arranged on the frame 1, and is characterized in that it also includes two symmetrically arranged on the frame 1. A set of loading tooling assemblies 3, a support system 4 arranged between two sets of loading tooling assemblies 3, and a drive system 5 connected to the supporting system 4;

[0069] Described radial loading system 2 comprises the hydraulic unit 21 that is located at frame top, and the output end of described hydraulic unit 21 is provided with the indenter 22 that matches the outer diameter of bearing to be tested; The output force of described hydraulic unit 21 passes through The force sensor and the computer form a closed-loop control;

[0070] The loading tool assembly 3 is used to quickly clamp the bearing 100 to be tested and provide axial loading force;

[0071] The radial loading system 2 is...

Embodiment 2

[0106] Such as Figure 11-16 As shown, the components that are the same as or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. For the sake of simplicity, only the differences from the first embodiment will be described below. The difference between this embodiment two and embodiment one is:

[0107] In this example, if Figure 11-12 As shown, the support unit 41 includes:

[0108] A bracket 411, the bracket 411 is connected with the frame 1;

[0109] cooling lubricating housing 412, such as Figure 14-15 As shown, the cooling and lubricating housing 412 is arranged on the bracket 411, and its two ends are respectively provided with a liquid inlet 4121 and a liquid outlet 4122, and its outer diameter surface is provided with a number of annular passages 4123 for the circulation of the cooling medium A notch 4124 is opened on the adjacent annular channel 4123, and the two adjacent notches 4124 are a...

Embodiment 3

[0115] Adopt the railway axle box bearing routine testing machine described in the above-mentioned embodiment one or embodiment two technical schemes to carry out the method for bearing routine test, comprise the following steps:

[0116] Step 1, the pre-installation of the bearings to be tested, respectively install the two bearings 100 to be tested on the working positions 3251 on the support bases 325 at both ends; The positioning boss 32521 for pre-positioning;

[0117] Step 2: pre-fix the bearing to be tested, the inner ring loading die 332 protrudes from the outer ring loading die 331 under the action of the limiter assembly 333, start the power assembly 31, drive the axial loading assembly 33 to move inward, and make the bearing to be tested 100 cooperates with the support shaft 421, and at the same time, the boss 3321 of the inner ring loading die 332 is in contact with the inner ring of the bearing to be tested 100, the position of the inner ring and the outer ring of...

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PUM

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Abstract

The invention provides a railway axle box bearing routine testing machine. The railway axle box bearing routine testing machine comprises a rack, two radial loading systems symmetrically arranged on the rack, two loading tool assemblies symmetrically arranged on the rack, a supporting system arranged between the two loading tool assemblies and a driving system in transmission connection with the supporting system. Two to-be-tested bearings are tested at a time through the two groups of loading tool assemblies and the radial loading system which are arranged on the two sides of the supporting system. Through the power assembly, the pressing and expanding assembly and the axial loading assembly in the loading tool assembly, the bearing is pre-positioned, the inner ring and the supporting shaft are expanded after the outer ring and the inner ring are positioned at the same time, and the bearing to be tested is rapidly and accurately installed.

Description

technical field [0001] The invention relates to bearing testing equipment, in particular to a routine testing machine for railway axle box bearings and a method for routine testing of bearings. Background technique [0002] The establishment of the routine test link of high-speed rail bearings is to ensure that there will be no problems in the loading of domestic high-speed rail bearings. The research has practical significance; the installation structure of the test bearing and the shaft is an interference structure, and the interference is about 0.05mm. If cold pressing is adopted, frictional damage to the inner ring of the bearing will inevitably be caused during the assembly and disassembly process; Routine tests are mainly short-term tests, generally ranging from 10 to 60 minutes. Therefore, the experimental process must not only ensure the accuracy of installation, but also ensure the realization of non-destructive testing. At the same time, it is necessary to ensure r...

Claims

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Application Information

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IPC IPC(8): G01M13/04G01M13/045
CPCG01M13/04G01M13/045
Inventor 陈仁波黄俊辉倪付峰张佩思
Owner 中浙高铁轴承有限公司
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