A stepless adjustable stroke isolation switch electric device transmission mechanism

Abstract

The invention discloses a stepless stroke adjusting disconnecting switch electric device transmission mechanism which comprises a supporting frame, a motor, a straight gear, a speed reduction device, a screw nut, a bevel gear deviator, a four-bar mechanism, a horizontal power output shaft and a vertical power output shaft. Through a specially-designed mechanical stopping board device and the nut in a screw nut device, a disconnecting switch electric device can be locked in the moving process, and the installation positions of stroke switches installed adjacent to a baffle are modified so that stepless stroke adjustment of the disconnecting switch electric device can be achieved. The transmission mechanism is high in rotating speed, capable of being used for a disconnecting switch with the coincide bus current conversion capacity, stable and adjustable in speed, and capable of being mechanically locked, preventing the stroke from exceeding the limit and making the disconnecting switch turned off and on in place accurately and rapidly. The transmission mechanism is simple, good in reliability, convenient to operate and repair and high in efficiency, and compared with products on the market, the miniaturization characteristic of the mechanism is obvious.

Description

Technical field [0001] The invention belongs to the field of high-voltage electrical equipment supporting equipment, and relates to an isolating switch device for a high-voltage switch in a power system, in particular to an isolating switch with compact structure, beautiful appearance, safe on-site installation, convenient maintenance, high efficiency, stable opening and closing operation Transmission device of electric mechanism. Background technique [0002] With the large increase in unattended substations and substations of the State Grid, the opening and closing motor mechanisms of high-voltage isolating switches, which are widely used in power systems, mainly use AC and DC motors as the power input, which makes the high-voltage isolating switches act fast and Reliability requirements are becoming more and more important. Therefore, it is not only required to have the function of manual operation, but also put forward higher requirements on the performance and appearance of...

AI Technical Summary

Problems solved by technology

[0003] The isolating switch plays an important role in the entire power system. However, most of the existing electric operating mechanisms are driven by the motor to drive the gear pair or the worm gear to realize the operation of two positions (opening and closing). The output angle range of the mechanism is small and the error is large, and it is easy to cause the opening and closing of the isolating switch to be in place, which directly affects the reliability of the isolating switch

Moreover, because the reduction ratio of such mechanisms is generally large, the gear reduction device or the worm gear device is large in size, and the miniaturization requirements of the disconnector cannot be met, and the transmission efficiency is very low.

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