Stepless stroke adjusting disconnecting 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

[0001] technical field [0002] The invention belongs to the field of supporting equipment for high-voltage electrical appliances, and relates to an isolating switch device for a high-voltage switch in a power system, in particular an isolating switch with compact structure, beautiful appearance, safe on-site installation, convenient maintenance, high efficiency, and stable opening and closing operation The transmission of the electric mechanism. [0003] Background technique [0004] With the large increase of unattended substations and substations of the State Grid, for the opening and closing electric mechanisms of high-voltage disconnectors widely used in power systems, AC and DC motors are mainly used as power inputs to make the high-voltage disconnectors move quickly and easily. Reliable requirements are becoming more and more important. Therefore, not only the function of manual operation is required, but also higher requirements are put forward for the performance ...

AI Technical Summary

Problems solved by technology

[0005] 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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