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Circuit breaker mechanical characteristics test device

A technology for testing mechanical characteristics and circuit breakers. It is applied in the testing of mechanical components, measuring devices, and testing of machine/structural components. It can solve problems such as damage to moving contact rods and achieve the effect of improving test accuracy.

Active Publication Date: 2016-08-17
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a circuit breaker mechanical characteristic test device to solve the technical problem that the linear displacement sensor in the test device in the prior art is easily damaged by the moving contact pull rod that rotates in the circumferential direction

Method used

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  • Circuit breaker mechanical characteristics test device
  • Circuit breaker mechanical characteristics test device
  • Circuit breaker mechanical characteristics test device

Examples

Experimental program
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Embodiment Construction

[0028] like Figure 1 to Figure 8 As shown, an embodiment of a test device for mechanical characteristics of a circuit breaker, the test device in this embodiment includes a connecting frame 2 , a guide frame 4 , a rolling bearing 3 and a linear displacement sensor 7 . The connecting frame 2 is used to be fixedly connected with the moving contact rod 1 of the circuit breaker so as to be driven by the moving contact rod 1 to move along the telescopic direction of the moving contact rod. The connecting frame 2 is connected with the flange plate 19 on the moving contact rod 1 The flange plate 23 is provided with a flange mounting hole 24 correspondingly on the flange plate 23 . When in use, the guide frame 4 is fixedly assembled with the fixed bracket 100 of the circuit breaker through bolts. The guide frame 4 is provided with a connecting frame 2 for moving and cooperating with the connecting frame 2 in the telescopic direction of the moving contact rod 1. A limit track for sto...

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Abstract

The invention discloses a device for testing mechanical characteristics of a circuit breaker, which comprises a connecting frame fixedly connected with a moving contact rod of the circuit breaker so as to be driven by the moving contact rod to move along the telescopic direction of the moving contact rod, and a connecting frame fixed to the connecting frame. The linear displacement sensor of the connected signal input rod, the test device also includes a guide frame fixed on the fixed bracket of the circuit breaker, and the guide frame is provided with the connecting frame for connecting the movable contact pull rod The telescopic direction guides the moving fit, and the limit track that stops rotation and limit fits in the circumferential direction of the pull rod of the orbiting contact. Under the guidance and limit action of the guide frame, the connecting frame connecting the moving contact rod and the signal input rod of the linear displacement sensor can only guide and move along the telescopic direction of the moving contact rod, but cannot rotate in the circumferential direction of the moving contact rod , there will be no problem of damage to the linear displacement sensor due to the rotation of the moving contact rod.

Description

technical field [0001] The invention relates to a circuit breaker mechanical characteristic testing device. Background technique [0002] The measurement of the mechanical characteristics of the circuit breaker is one of the important means to measure and guarantee the quality and performance indicators of the circuit breaker. In the type test, factory test and field handover test, the measurement of the mechanical characteristics is required to ensure the normal operation of the circuit breaker. [0003] In the Chinese utility model patent with the authorized announcement number CN202066668U, a circuit breaker mechanical characteristic testing device is disclosed. A connecting frame is fixedly connected to the moving contact pull rod, and the connecting frame is fixedly connected to the input end of the displacement sensor at the same time. When testing mechanical characteristics, the moving contact rod is driven by the operating mechanism to reciprocate along the extension...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00G01B21/02
Inventor 吴俊勇曾其武闫振靖赵焕敏
Owner STATE GRID CORP OF CHINA
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