Disconnecting switch open-type transmission case

Abstract

The invention relates to a GW6B type disconnecting switch open-type transmission case which mainly comprises an open-type case body, rotary shafts, conducting clips, a tension spring, an upper conducting pipe and a lower conducting pipe, wherein the open-type case body is mainly composed of conducting bars and a wiring board, the number of the rotary shafts is two, the two rotary shafts are arranged in parallel between the two conducting bars, the two conducting clips rotate in the reversed direction through a transmission mechanism, a voltage-sharing ball is arranged at the upper end of the upper conducting pipe, the lower conducting pipe is installed in the conducting clips, the upper conducting pipe and the lower conducting pipe are connected through a connecting pipe, the two ends of the rotary shafts are connected with the conducting bars through bearings A respectively, bearings B are arranged between the conducting clips and the rotary shafts, annular grooves are formed in the two ends of a shaft sleeve respectively, the shaft sleeve is limited and fixed through cover plates, the tension spring is obliquely arranged between the two conducting bars, and a tension spring protection sleeve is arranged on the outer surface of the tension spring in a sleeved mode. The GW6B type disconnecting switch open-type transmission case has the advantages that due to the fact that the disconnecting switch transmission case is open, working staff can observe, maintain and debug transmission pieces inside conveniently.

Description

technical field [0001] The invention relates to an isolating switch transmission box, in particular to a GW6B type isolating switch open type transmission box. Background technique [0002] The isolating switch is the most widely used electrical appliance in high-voltage switching appliances. As the name suggests, it plays an isolation role in the circuit. Its own working principle and structure are relatively simple, but due to the large amount of use and high requirements for working reliability, it is very important for substations. , The design, establishment and safe operation of the power plant have a greater impact. The main feature of the knife switch is that it has no arc extinguishing ability, and can only open and close the circuit without load current. [0003] At present, the structure of the isolating switch in use in the existing market is usually a large sealed box, and the transmission parts of the isolating switch are all installed in the sealed bo...

AI Technical Summary

Problems solved by technology

Adopting such a mechanism has several disadvantages: the transmission parts of the isolating switch are all installed in the sealed box, and the staff cannot see the movement of the transmission parts, such as whether the closing is in place, etc., and the staff needs to open the sealed box. It can be seen that, in the same way, during maintenance and debugging, the staff needs to open the sealing box; the transmission mechanism is usually an operating flange, and a connecting shaft extends upward from the operating flange, and the connecting shaft is connected to the main shaft through the rod end joint bearing. The pull rods are connected, and the main pull rod is connected with the driven pull rod through the bearing. The above-mentioned structure, the main pull rod and the driven pull rod are all inclined upwards. In addition, the operating flange and the connecting shaft make the overall height of the isolation switch relatively high. For a certain Some places with relatively low heights, such as the interior of the room, are extremely inconvenient to install; when the customer is installing, the center line of the installation foundation and the busbar are not on the same vertical plane, that is, the staff must pay attention to the installation foundation and the center line of the busbar during installation. There must be a certain distance between them. If the customer fails to pay attention when installing, the isolating switch will not work properly after installation and needs to be reinstalled, which is more troublesome.

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