Single-phase circuit breaker transmission mechanism and operating mechanism with same

Abstract

The invention discloses a single-phase circuit breaker transmission mechanism and an operating mechanism with the same. The single-phase circuit breaker transmission mechanism comprises a driving crank arm, a push plate structure and a motion assembly. The push plate structure is rotatably arranged in a mechanism clamping plate, and an insulating pull rod is connected to the push plate structure; the motion assembly comprises a rod end bearing which is in linkage fit with the driving crank arm through a first shaft piece and an adjusting part which is movably connected to the rod end bearing, and the adjusting part is rotationally connected with the push plate structure through a second shaft piece; the rod end bearing obliquely rotates around the first shaft piece within a certain angle range under the driving action of the driving connecting lever, and the single-phase circuit breaker transmission mechanism has the advantages of large loading capacity and impact resistance, good structural stability, more stable and reliable transmission stress and long mechanical service life. According to the technical scheme, the transmission mechanism of the single-phase circuit breaker is simple and compact in structure, the installation occupied space is reduced, the transmission chain distance is short, the working efficiency and reliability of opening and closing operation are improved, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of circuit breakers, in particular to a single-phase circuit breaker transmission mechanism and its operating mechanism. Background technique [0002] Outdoor high-voltage vacuum circuit breakers are mainly used for breaking and closing load currents, overload currents and short-circuit currents in power systems; they are suitable for control and protection of power systems, and are most widely used in urban distribution networks and rural power grids. High-voltage vacuum circuit breakers The development trend of switching equipment in recent years is to increase energy saving and environmental protection, strengthen the simplification of structure, the reliability of operation, and the development of maintenance-free switchgear; the core part of which is the efficient, safe and reliable operation of the opening and closing operating mechanism. [0003] Existing vacuum circuit breakers are generally used in ...

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved by the invention is to overcome the structure of the circuit breaker transmission mechanism in the prior art which is too complicated, takes up a large space for installation, the entire transmission chain is too long, and the transmission stability is poor, which shortens the service life of the machine and affects the single-phase circuit breaker. The working efficiency and reliability of the opening and closing operation, and the high cost of setting; thus providing a simple structure, shortening the transmission chain, stable and reliable transmission force, improving the service life of the machine, reducing manufacturing costs, and improving the working efficiency of the product during operation and reliable single-phase circuit breaker transmission mechanism and its operating mechanism

Images