Adjustable ZW32 opening spring

Abstract

The invention discloses an adjustable ZW32 opening spring, and belongs to the technical field of opening spring design of circuit breakers. Comprising a spring hanging plate and a spring, and further comprises a spring hanging column, a connecting column and a screw, one end of the spring hanging column is connected with the spring hanging plate through the spring, the other end of the spring hanging column is connected with the connecting column through the screw, and positive and negative threads are arranged at the two ends, connected with the spring hanging column and the connecting column, of the screw respectively; according to the invention, the force of the opening spring with the mechanical characteristic is adjusted without dismounting any part of the circuit breaker, the operation difficulty is reduced, the operation is convenient and fast, the operation adjustment time is greatly saved, and the operation efficiency is improved.

Description

technical field [0001] The invention relates to an adjustable ZW32 opening spring, which belongs to the technical field of circuit breakers. Background technique [0002] Vacuum circuit breaker is named for its arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum; it has the advantages of small size, light weight, suitable for frequent operation, and no maintenance for arc extinguishing. The application is more popular. The circuit breaker includes two actions of closing and opening, and the closing and opening actions are generally realized by a spring mechanism. Before the spring mechanism drives the circuit breaker to close or open, it needs to store energy first. The spring is compressed or stretched by the energy storage gear to make the spring elastically deformed, so as to achieve the purpose of energy storage. [0003] The opening force of the circuit breaker has a great influence on the opening performa...

AI Technical Summary

Problems solved by technology

The existing technology cannot adjust the opening force. The opening spring of the circuit breaker uses the left and right hanging spring plates to adjust the strength. It can only be adjusted by removing the opening spring or even replacing the opening spring to realize the adjustment of the opening spring force, which seriously affects Installation and debugging efficiency

Moreover, due to the compact structure of the circuit breaker and the small space inside the case, it often leads to a sharp rise in the difficulty of replacing the spring, which consumes a lot of manpower and material resources.

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