Electrical control apparatus for bipolar isolation switch of railway traffic
A technology for isolating switches and rail transit. It is applied in the field of bipolar isolating switches and their electric control devices. It can solve the problems of interlocking of opening and closing circuits, small operating force, etc., so as to solve the problem of excessive impact force, reduce contact resistance, Meet the effect of electrical control protection and signal output
Inactive Publication Date: 2010-11-24
成都通力集团股份有限公司
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Problems solved by technology
The purpose of the present invention is to provide a rail transit bipolar isolating switch electronic control device with a compact structure, good opening and closing cycle, and small operating force, and at the same time solve the problem of interlocking of the opening and closing circuits of the isolating switch control part
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Disclosed is a railway vehicle bipolar isolating switch electric control device, belonging to the control devices for DC 1500V isolating switches for contact screens of railway vehicles. The railway vehicle bipolar isolating switch electric control device comprises a bipolar isolating switch and an electric control device. The electric control device is structurally characterized in that: a motordrives a brake driving shaft and a roller shaft through a gear wheel; the primary transmission ratio is 4:1 and the secondary transmission ratio is 1:1; two concave rollers are installed on the roller shaft, with the notches staggered at an angle of 180 degrees so as to enable the two switches below to be connected or disconnected. In this way, the brake circuits can be interlocked. The bipolar switch is good in periodicity, little in wear and long in service life; the brake circuits of the motor can be interlocked; the connection and disconnection of the contacts of the auxiliary switch canbe automatically controlled, thus meeting the requirements of controlling and protecting the motor and outputting signals.
Description
Electric control device for rail transit bipolar isolating switch technical field The invention relates to a DC isolating switch, in particular to a DC1500V bipolar isolating switch used in urban rail transit catenary and its electric control device technology. Background technique In my country, 10 cities including Beijing, Shanghai, and Guangzhou have successively built urban rail transit systems, and a total of 22 lines have been put into operation or trial operation, with a total mileage of 602 kilometers. In addition, in the next 10 years, 15 cities in my country will build rail transit lines with a total length of 1,700 kilometers and a total investment of 620 billion yuan. However, the research and development and manufacture of DC1500V bipolar isolating switches required by the rail transit catenary are still blank in China. As a result, the domestic rail transit catenary has to be replaced by two completely independent unipolar isolating switches. Such substitute...
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IPC IPC(8): H01H31/02H01H3/26H01H31/04H01H31/28H01H1/42
Inventor 魏以德王斌
Owner 成都通力集团股份有限公司