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Current-carrying friction single-contact-peak arc testing machine

A current-carrying friction, single-contact technology, applied in the direction of testing wear resistance, can solve problems such as the inability to accurately measure the influence of arc heat on the wear performance of current-carrying friction pairs, and achieve the effect of reducing resistance heat and overcoming mutual interference.

Active Publication Date: 2016-01-20
HENAN UNIV OF SCI & TECH
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  • Abstract
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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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  • 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 is provided. The testing machine in this embodiment includes a frame 100. The frame 100 is provided with a sample holder 11 for clamping the sample 10, where The sample holder 11 is specifically fixed and fixed on a movable sliding table 12 that can move linearly in a horizontal plane perpendicular to the vertical direction, and the movable sliding table 12 is driven by a linear drive mechanism to move linearly.

[0018] The frame 100 is also provided with electrodes arranged at a distance from the sample holder 11 in the up and down direction for loading and pressing on the sample 10 and moving relative to the sample 10 to form a current-carrying friction pair with the sample 10. 8. The 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 hol...

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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 tester. Background technique [0002] The current-carrying friction pair will cause an arc when it separates during operation. In particular, current-carrying friction pairs such as high-voltage switches and high-speed railway pantographs, under high-speed, heavy-load and high-current service conditions, the damage caused by arcs is becoming more and more serious. Therefore, the research on arc formation mechanism and damage mechanism is a basic theoretical problem that is expected to be solved. [0003] At present, current-carrying friction testing machines are used for current-carrying friction tests. For example, the current-carrying friction and wear testing machine disclosed in the Chinese Utility Model Patent with Authorized Announcement No. CN202421000U includes a current-carrying friction and wear plate that is rotated and assembled on a workbench and The loaded pin clamp f...

Claims

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Application Information

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Patent Type & Authority Applications(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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