Gravity loading type fretting wear testing equipment capable of simulating high-temperature environment

A technology of gravity loading and fretting wear, which is applied in the direction of testing wear resistance, measuring devices, instruments, etc., can solve the problems of inconsistent load and lower precision, and achieve accurate measurement of lateral force and lateral fretting displacement, and heat insulation effect Good and convenient for practical application and promotion

Inactive Publication Date: 2018-11-23
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the research on fretting wear in high-temperature environment (high-temperature liquid environment and high-temperature gas environment) is of great s

Method used

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  • Gravity loading type fretting wear testing equipment capable of simulating high-temperature environment
  • Gravity loading type fretting wear testing equipment capable of simulating high-temperature environment
  • Gravity loading type fretting wear testing equipment capable of simulating high-temperature environment

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as Figure 1~3As shown, the gravity-loaded fretting wear test equipment capable of simulating a high-temperature liquid environment provided in this embodiment includes a base plate 1, a vertical plate 2, a servo motor 3, a screw module 4, a lifting platform 5, a vertical To the linear guide rail 6, the right-angle weight plate 7, the force sensor fixture 8, the upper sample fixture 9, the lower sample fixture 10, the slider connecting plate 11, the transverse linear guide rail 12 and the linear motion motor 13, wherein the right-angle weight A weight 701 is placed on the code disc 7, the force sensor fixture 8 clamps a force sensor 801 for measuring the lateral force, and a displacement sensor for measuring the lateral displacement of the corresponding slider is installed on the lateral linear guide rail 12; The bottom of the vertical plate 2 is vertically connected to the base plate 1, the servo motor 3 is fixedly installed on the top of the vertical plate 2, and...

Embodiment 2

[0050] Such as Figure 4 As shown, this embodiment provides another gravity-loaded fretting wear test equipment capable of simulating a high-temperature gas environment. The difference from Embodiment 1 is that there is no liquid container 14 installed, but the test A thermal resistance heating rod 101 and a thermocouple sensor 102 are respectively embedded in the side of the sample holder 10 . Such as Figure 4 As shown, the thermal resistance heating rod 101 is used to conduct electrical heating on the lower sample holder 10 so as to provide a high-temperature gas environment. The thermocouple sensor 102 is used to collect real-time temperature values. During heating, if the collected temperature value reaches the set temperature value, the heating needs to be stopped, and if the collected temperature value does not reach the set temperature value, the heating needs to be continued. When experimenting in a gas environment, since the sample is in direct contact with the low...

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Abstract

The invention relates to the field of fretting wear testing equipment and discloses gravity loading type fretting wear testing equipment capable of simulating a high-temperature environment. Through the invention, novel testing equipment capable of performing fretting wear tests in the high-temperature liquid environment or the high-temperature gas environment under the condition with constant positive pressure can be provided, namely, on one hand, as being not changed along with change of wear quantity, the positive pressure can keep constant in the whole process; and on the other hand, the high-temperature gas environment can be provided through an electrical bar heating manner, or the high-temperature liquid environment can be provided through a manner of injecting high-temperature liquid, so that the purpose of performing fretting wear tests in the high-temperature environment is realized, and the transverse force and the transverse fretting displacement amount can be accurately measured.

Description

technical field [0001] The invention belongs to the field of fretting wear test equipment, in particular to a gravity-loaded fretting wear test equipment capable of simulating a high-temperature environment. Background technique [0002] Fretting wear refers to the surface wear caused by the relative movement of two contact surfaces with extremely small amplitudes. Generally, fretting wear may occur in fastening fits under the action of cyclic force. Fretting wear can cause the fastening surface to loosen, which constitutes a safety hazard; in addition, fretting wear may also cause the generation and expansion of cracks, reducing the life of components. Fretting wear is one of the important reasons for wear and failure of many parts. Therefore, the study of fretting wear mechanism is of great significance to resist component failure and improve component life. [0003] In actual working conditions, many fretting wear behaviors occur in high-temperature liquid or gas environ...

Claims

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Application Information

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IPC IPC(8): G01N3/56G01N3/02
CPCG01N3/02G01N3/56G01N2203/0226
Inventor 蔡振兵朱旻旻周仲荣明仕林荆建瑛林禹丁原邹浪吴松波刘善邦
Owner SOUTHWEST JIAOTONG UNIV
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