Spring operating mechanism for breaker

A technology of operating mechanism and circuit breaker, which is applied in the direction of contact drive mechanism, protection switch operation/release mechanism, etc., can solve the problems of high operating noise, short service life, high mechanical strength, etc., achieve low cost, improve safety, The effect of high reliability

Active Publication Date: 2016-02-03
JIANGSU RUGAO HIGH VOLTAGE ELECTRIC APP +1
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Because its energy storage method is a ratchet structure, it bears impact loads during op...

Method used

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  • Spring operating mechanism for breaker
  • Spring operating mechanism for breaker
  • Spring operating mechanism for breaker

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Experimental program
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Embodiment Construction

[0045] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0046] like Figure 1 to Figure 5 As shown, a spring operating mechanism for circuit breakers includes a frame 1 composed of two front and rear parallel vertical plates 1a, 1b, and vertically penetrating the upper parts of the two vertical plates 1a, 1b are provided with parallel energy storage shafts 2 and 1. output shaft 3.

[0047]The front and rear ends of the energy storage shaft 2 are respectively movably connected to the tops of the front and rear symmetrical closing springs 4 and 5 through cranks, and the bottoms of the two closing springs 4 and 5 are fixedly connected to the lower part of the frame 1 . An energy storage gear 7 with an energy storage roller 6 is arranged on the energy storage shaft 2 between the front closing spring 4 and the front vertical plate 1a. A cam 8 is provided on the energy storage shaft 2 between the two vertical...

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Abstract

The invention relates to a spring operating mechanism for a breaker, and belongs to the field of high-voltage switches. Power transmission of an energy storage shaft and an output shaft is achieved by coordination of a cam and an output connecting lever; a closing operation is achieved by coordination of the cam, a follower roller and a closing lever; an opening action is achieved by coordination of a primary opening lever, a secondary opening lever and a brake lever; and the spring operating mechanism is compact in structure, few in part variety, low in cost and high in reliability. A through hole which can be inserted into a safety pin is formed in a rack, so that the safety of the spring operating mechanism is improved. The invention also designs a manual opening mechanism, so that the opening action can be manually achieved when a tripping electromagnet is in a failure.

Description

technical field [0001] The invention relates to an operating mechanism of a medium and high voltage switch, in particular to a spring operating mechanism for a vacuum circuit breaker and an SF6 circuit breaker with equivalent operating work. Background technique [0002] With the rapid development of vacuum circuit breakers, higher requirements are put forward for the matching operating mechanism. The earliest electromagnetic operating mechanism was gradually replaced by the spring operating mechanism with small closing power, output characteristics matching the vacuum circuit breaker, and long mechanical life due to the high power of the closing power supply and the low closing and opening speed of the circuit breaker. . [0003] The CT10 spring operating mechanism is the earliest perfected and improved spring operating mechanism for 31.5kV vacuum circuit breakers, with an operating power of about 400J. Because its energy storage method is a ratchet structure, it bears im...

Claims

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Application Information

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IPC IPC(8): H01H71/10H01H3/42H01H3/46
CPCH01H3/42H01H3/46H01H71/10
Inventor 潘艳明侯斌刘秉政贾建军杨志铁
Owner JIANGSU RUGAO HIGH VOLTAGE ELECTRIC APP
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