A spring operating mechanism and its closing latch system

Abstract

The invention provides a spring operating mechanism and its closing latch system. The closing latch system includes a closing latch. The limit end of the iron limit, the closing latch has the first working position when the stop end and the energy storage roller stop, and the second working position when the closing electromagnet releases the limit. Including the anti-air closing part, the anti-air closing part has an anti-air closing position that cooperates with the closing latch stopper to avoid secondary closing when the closing latch is in the first working position, and also has an avoidance tool for turning the closing latch When it is in the avoidance position, it can provide space for the closing latch to rotate in the unlocking direction, and the air-proof assembly constitutes a limiter that limits the rotation limit of the closing latch in the unlocking direction. Effect: The anti-aircraft assembly is linked with the output shaft, without relying on parts that are prone to failure such as the return spring, and the performance is more stable. In addition, the anti-aircraft assembly is fully utilized without setting up other blocking structures, which can reduce the number of parts.

Description

technical field [0001] The invention relates to a spring operating mechanism and a closing latch system thereof. Background technique [0002] The operating mechanism is an important equipment in the field of high-voltage power transmission and transformation, and is an important part of the high-voltage circuit breaker. The opening and closing operations of the high-voltage circuit breaker are realized through the operating mechanism. At present, the spring operating mechanism has been widely used in 252kV power grid equipment, but due to the short development time of the spring operating mechanism, the technology is not yet complete, and there are still certain technical difficulties in manufacturing a spring operating mechanism with stable and reliable performance. The closing latch system is the main component to ensure the stability of the opening and closing characteristics of the spring operating mechanism, which is directly related to the stability of the spring oper...

AI Technical Summary

Problems solved by technology

[0007] Although the above-mentioned closing latch system is provided with an air-proof closing structure, the air-proof closing member is also a component that pushes the closing latch to unlock. Manufacture and installation are relatively difficult, and the cooperation of the anti-aircraft return spring is required. Once the spring fails or fails, the anti-aircraft function of the mechanism will no longer be realized.

Images