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Cable lifting device used for rail car voltage withstand test, and test equipment

A lifting device and pressure test technology, which is applied in the field of rail transit vehicle testing, can solve problems such as safety and test efficiency are difficult to guarantee, and achieve the effect of improving lifting efficiency and test efficiency, and improving safety

Active Publication Date: 2018-12-04
CRRC QINGDAO SIFANG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, when rail vehicles are conducting UHV withstand tests, test personnel are required to climb the roof of the vehicle, one person operates and the other supervises. The safety belt of the operator is connected to the safety wire rope chain of the workshop, and the test cable is hung on the roof of the vehicle. It is difficult to guarantee safety and test efficiency

Method used

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  • Cable lifting device used for rail car voltage withstand test, and test equipment
  • Cable lifting device used for rail car voltage withstand test, and test equipment
  • Cable lifting device used for rail car voltage withstand test, and test equipment

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Embodiment Construction

[0034] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.

[0035] In the description of the present invention, unless otherwise stated, the meaning of "plurality" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer" , "Top", "Bottom", "Head", "Tail" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or It should not be construed as limiting the invention by implying that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation. In addition, the terms "f...

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Abstract

The invention relates to the technical field of rail traffic car tests, in particular to a cable lifting device used for a rail car voltage withstand test, and test equipment. The cable lifting devicecomprises a lifting device body and a drive mechanism; the lifting device body comprises a fixing rod and a lifting rod which is sleeved and connected with the fixing rod in a telescopic mode; the fixing rod and the lifting rod are connected through a first pulley assembly; the first pulley assembly is connected with the drive mechanism; the drive mechanism drives the lifting rod to ascend or descend relative to the fixing rod; and the top of the lifting rod is used for supporting a cable. The test equipment is provided with any one cable lifting device. The cable lifting device can achieve automatic ascending and descending of the cable, an operator does not need to climb to the car top to ascend or descend the cable, the operator can efficiently connect the cable for the test with a high-voltage component of the car top from the ground, and the cable ascending and descending efficiency and safety are improved.

Description

technical field [0001] The invention relates to the technical field of rail vehicle testing, in particular to a cable lifting device and testing equipment for a rail vehicle pressure test. Background technique [0002] Rail vehicles, especially EMUs, in high-speed operation, due to factors such as the instability of high-voltage components on the roof and the heating and aging of cable terminals, the electrical insulation characteristics of the train are reduced, which may lead to the occurrence of ground faults in the high-voltage system of the train. The normal operation of the train has a great impact. For this reason, EMUs must undergo UHV withstand voltage tests before leaving the factory and after overhaul. [0003] The purpose of the withstand voltage test (especially the UHV withstand voltage test) is to detect the insulation characteristics between the high-voltage equipment and the earth, and through the analysis and diagnosis of the high-voltage test system, give...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66F3/44G01R31/12H02G1/06
CPCB66F3/44G01R31/1272H02G1/06
Inventor 沈华波韩帅田鹏赵建博郑启亮常杰
Owner CRRC QINGDAO SIFANG CO LTD
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