Switch cabinet and operation mechanism and link mechanism thereof

Abstract

The invention provides a switch cabinet and an operation mechanism and link mechanism thereof. The link mechanism comprises input main shafts which are arranged in parallel, and at least one output main shaft. Rotating elements are in standstill locking assembly on the input main shafts. Driven elements are in standstill locking assembly on the output main shafts. At least two pin slot matching structures are correspondingly arranged on the rotating elements and the driven elements. In a rotating process, the rotating elements realize clutch transmission with the driven elements through the two pin slot matching structures in sequence and drive the driven elements to rotate. Through application of the more than two pin slot matching structures, an engagement range of the rotating elements and the driven elements is increased, and a transmission angle is relatively large.

Description

technical field [0001] The invention relates to a high-voltage switchgear, in particular to a switchgear and its operating mechanism and linkage mechanism. Background technique [0002] The main function of the switchgear is to open and close, control and protect electrical equipment during the process of power generation, transmission, distribution and power conversion in the power system. The components in the switch cabinet are mainly composed of circuit breakers, disconnectors, grounding switches, load switches, operating mechanisms, transformers and various protection devices. We collectively refer to the isolating switch and the grounding switch as the protective switch mechanism. When the power supply line or equipment fails and during normal maintenance, the operator needs to disconnect the circuit breaker and perform corresponding operations on the protective switch mechanism (that is, disconnect the isolating switch, close After turning on the grounding switch), t...

AI Technical Summary

Problems solved by technology

Although this kind of mechanical interlocking transmission device also realizes the purpose of driving two switches through one transmission shaft, the ball on the rotary wheel drives the fork-shaped rotary plate to have a limited rotation stroke. When the closing stroke is large, it is necessary to set up other transmission structures between the fork-shaped rotary plate and the switch shaft to increase the rotation angle, which eventually leads to a relatively complicated structure of the entire transmission device.

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