Energy storing part and switching-off and switching-on part combining device and method of spring operating mechanism

Abstract

The invention relates to energy storing part and switching-off and switching-on part combining device and method of a spring operating mechanism. The device comprises an energy storing part and a switching-off and switching-on part. The device has the design key point that the energy storing part and the switching-off and switching-on part are respectively two module units; and the energy storing part is connected with a switching-on crank arm of the switching-off and switching-on part and a cam by a large hexagonal shaft. In the operating method, the spring operating mechanism needs less external driving force in the process of switching-on energy storage; the stored high energy can meet the energy needed when an ultrahigh pressure alternating current vacuum circuit breaker is switched on, and is safe and reliable; and when the spring operating mechanism is in a state to be switched on and switched on, a switching-off and switching-on buckling plate has less pressure on a switching-on and switching-off half shaft, which is beneficial to releasing the switching-on and switching-off half shaft and ensures reliable switching-on and switching-off. The spring operating mechanism has the output characteristics matched with the loading characteristics of the ultrahigh pressure alternating current vacuum circuit breaker, therefore, the mechanical characteristic parameter of the ultrahigh pressure alternating current vacuum circuit breaker is met and the technical problem that the current domestic ultrahigh pressure alternating current vacuum circuit breaker is not provided with a special spring operating mechanism is solved.

Description

technical field [0001] The invention relates to a power transmission and distribution and power supply system, and relates to a device and method for combining an energy storage part and an opening and closing part of a spring operating mechanism. Background technique [0002] As my country's technology for manufacturing vacuum interrupters in the medium and high voltage field tends to be stable and mature, it has begun to enter the field of ultra-high voltage vacuum interrupter manufacturing. There are now a few domestic manufacturers of vacuum interrupters, producing 72.5 kV and 126kV level vacuum interrupters, and the subsequent development of 72.5kV and 126kV level ultra-high voltage AC vacuum circuit breakers is an inevitable trend. The reliability of the spring operating mechanism is particularly important, and the output characteristics of the spring operating mechanism are required. It matches the load characteristics of the ultra-high voltage AC vacuum circuit breaker...

AI Technical Summary

Problems solved by technology

[0003] In order to improve the above-mentioned deficiencies, the present invention aims to provide a device and method for combining the energy storage component and the opening and closing component of the spring operating mechanism in the field, so that it can solve the problem of the existing domestic ultra-high voltage AC vacuum circuit breaker specially equipped with springs. The mechanical characteristics of the operating mechanism are not well matched with the load characteristics of the circuit breaker and the structural design is not good, which leads to technical problems such as poor mechanical characteristic parameters, inconvenient maintenance and production, etc. The purpose is to achieve the following technical solutions

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