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A current-carrying friction single contact peak arc testing machine

A current-carrying friction and single-contact technology, which is applied in the direction of testing wear resistance, etc., can solve the problem that the influence of arc heat on the wear performance of current-carrying friction pairs cannot be accurately measured, and achieve the effect of reducing resistance heat and overcoming mutual interference

Active Publication Date: 2018-12-11
HENAN UNIV OF SCI & TECH
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Problems solved by technology

[0006] The present invention provides a current-carrying friction single-contact peak arc tester to solve the problem of inability to accurately measure the influence of arc heat on the wear performance of current-carrying friction pairs due to the existence of co-planar multi-peak joint coupling in the current-carrying friction tester test in the prior art technical issues

Method used

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  • A current-carrying friction single contact peak arc testing machine

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Embodiment Construction

[0017] Such as figure 1 As shown, an embodiment of a current-carrying friction single-contact peak arc testing machine, the testing machine in this embodiment includes a frame 100, and the frame 100 is provided with a sample holder 11 for clamping a sample 10, where The sample holder 11 is specifically fixed on the mobile slide table 12 that can move linearly in a horizontal plane perpendicular to the up-down direction, and the mobile slide table 12 is driven by a linear drive mechanism to move linearly.

[0018] The frame 100 is also provided with an electrode spaced apart from the sample holder 11 in the vertical direction, which is used to load and press on the sample 10 and move relative to the sample 10 to form a current-carrying friction pair with the sample 10. 8. One end of the electrode 8 facing the sample holder 11 is a tip structure for forming point contact with the sample 10 .

[0019] In this embodiment, the electrode 8 and the sample holder 11 are arranged at i...

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Abstract

The invention relates to a current-carrying friction single-contact-peak arc testing machine which comprises a machine frame. A sample clamp for clamping a sample is arranged on the machine frame. An electrode which is opposite to the sample clamp in a spaced mode, is used for performing loading and top pressure on the sample and moves relative to the sample so as to form a current-carrying friction pair with the sample is further arranged on the machine frame. The end, facing towards the sample clamp, of the electrode is of a tip structure making point contact with the sample. When the tip structure of the electrode makes top pressure contact with the sample, electric contact will be formed and then single-peak contact can be formed, existing mutual interference of contact among multiple peaks on arc characteristics is overcome, the influence caused by resistance heat and friction heat brought by multi-peak coupling to the current-carrying friction pair wear resistance can be effectively lowered, and the research for the wear resistance of the current-carrying friction pair is achieved only for arc heat.

Description

technical field [0001] The invention relates to a current-carrying friction single contact peak arc testing machine. Background technique [0002] When the current-carrying friction pair separates during operation, it will cause arcing. Especially for current-carrying friction pairs such as high-voltage switches and high-speed railway pantograph-catenary, under the service conditions of high speed, heavy load and high current, the damage caused by arc is becoming more and more serious. Therefore, the research on the formation mechanism and damage mechanism of arc is a basic theoretical problem to be solved. [0003] At present, a current-carrying friction tester is used to carry out a current-carrying friction test, such as the tester for current-carrying friction and wear disclosed in the Chinese utility model patent whose authorization announcement number is CN202421000U, including a current-carrying friction and wear disc and a A loading pin-clamp fixture arranged besid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/56
Inventor 上官宝张永振宋联美杨正海刘敬超周铭丽
Owner HENAN UNIV OF SCI & TECH
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