Three-position operating mechanism

Abstract

The invention relates to the technical field of the high-voltage switch, and discloses a three-position operating mechanism. The three-position operating mechanism is characterized by comprising a front plate, a black plate, a main shaft, an isolation system, and a grounding system; the main shaft can be rotatably connected to the front plate and the back plate; one end, close to the front plate side, of the main shaft is fixedly connected with a linkage block; one end, close to the back plate side, on the main shaft is connected with a main shaft transmission connecting rod; the isolation system comprises a pinion, a gear wheel, an energy storage shaft, a switching-on cam, an energy storage cam, an energy storage connecting lever, a switching-on spring, a switching-off half-shaft, a tripping shaft module, a switching-off and grounding spring, a load switch output tray module, and a linkage mechanism; the grounding system comprises an isolation shaft module, a grounding connecting level module, and a grounding output tray module. The three-positioning operating mechanism disclosed by the invention reduces the mechanism parts amount, lowers the cost, improves the mechanism reliability and stability, is convenient for production assemblage and aftersales maintenance, and applied to the fuse protector combined electrical appliance.

Description

technical field [0001] The invention relates to the technical field of high-voltage switches, in particular to a three-position operating mechanism. Background technique [0002] Three positions refer to three working positions: 1. The closing position where the main breakout of the isolation switch is connected; 2. The isolation position where the main breakout is separated; 3. The grounding position on the grounding side. The three-position switch integrates the functions of the isolating switch and the grounding switch, and is completed by a knife, which can realize mechanical locking and prevent the main circuit from being electrified and grounded. [0003] As the main core component in the high-voltage switch, the three-position operating mechanism needs good reliability and stability. At present, many three-station operating mechanisms on the market are large in size, complex in structure, low in versatility and modularization, have high requirements on the processing...

AI Technical Summary

Problems solved by technology

At present, many three-station operating mechanisms on the market are large in size, complex in structure, low in versatility and modularization, have high requirements on the processing technology of parts, a large number of parts, and high cost, which not only affects the performance stability and reliability of the mechanism, Moreover, the volume of the overall components increases, which is not conducive to factoryization, and it is inconvenient for production assembly and after-sales maintenance

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