Contact fatigue life prediction testing machine

A life prediction and contact fatigue technology, which is applied in the testing of mechanical components, testing of machine/structural components, measuring devices, etc., can solve the problems of large error in test results, increase the fatigue life of rolling contact, etc., and achieve the effect of reducing errors

Active Publication Date: 2012-06-20
ACADEMY OF ARMORED FORCES ENG PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some sliding frictions on the tested ball of this testing machine, and these sliding frictions and some additional structures have increased the influencing factors of rolling contact fatigue life
[0004] However, all current contact fatigue

Method used

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  • Contact fatigue life prediction testing machine
  • Contact fatigue life prediction testing machine
  • Contact fatigue life prediction testing machine

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Embodiment Construction

[0042] The invention discloses a contact fatigue life prediction testing machine to ensure that the slip rate of the main sample and the auxiliary sample can be flexibly adjusted according to the requirements of the actual working conditions simulated by the test, so as to reduce the error of the test result.

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0044] see figure 1 , figure 2 , Image 6 and Figure 7 , figure 1 A schematic structural diagram of the contact fatigue...

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Abstract

The invention discloses a contact fatigue life prediction testing machine, comprising a testing machine cabinet, an active motion shaft, a main shaft servo motor, a level retainer, a test-accompanying motion shaft, a testing force loading device and a test-accompanying driving servo motor, wherein the upper side of the testing machine cabinet is provided with a worktable; the active motion shaft is supported on the worktable by a bearing and one end of the active motion shaft is used for setting a main test sample; the output end of the main shaft servo motor is connected with the other end of the active motion shaft; a transmission shaft is arranged on the level retainer and is supported on the worktable by a bearing; the test-accompanying motion shaft is rotatably arranged at one end of the level retainer, and a test-accompanying sample corresponding to the main test sample is arranged on the test-accompanying motion shaft; the testing force loading device is used for pushing the other end of the level retainer to enable the test-accompanying sample to be contacted with the main test sample; the test-accompanying driving servo motor is connected with the transmission shaft by a conveyor belt, and the conveyor belt is connected with the test-accompanying motion shaft by a conveyor belt. In the invention, the slip ratio of the main test sample and the test-accompanying sample can be flexibly adjusted in a wide range, thereby reducing the error of the test result.

Description

technical field [0001] The invention relates to the technical field of testing devices, in particular to a contact fatigue life prediction testing machine. Background technique [0002] Gears, rolling bearings, cams and other machine parts have a common feature of pure rolling or rolling with sliding under high load. To study the contact fatigue properties of these machine parts, it is urgent to develop a contact fatigue testing machine that can realize pure rolling and variable slip. [0003] At present, there are many types of testing machines commonly used in China to test the fatigue life performance of rolling contact. Usually include 4-ball testing machine, 5-ball testing machine, ball and V-ring testing machine, thrust piece testing machine, etc. Among them, the 4-ball testing machine and the 5-ball testing machine are in a rolling and sliding state between the test ball and the accompanying test ball during the test, which is different from the actual working condi...

Claims

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Application Information

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IPC IPC(8): G01M13/00
Inventor 徐滨士王海斗康嘉杰王军威肖华
Owner ACADEMY OF ARMORED FORCES ENG PLA
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