Flow deflector shearing device of isolating switch

Abstract

The invention discloses a flow deflector shearing device of an isolating switch. The flow deflector shearing device comprises a shearing head, a driving device and an operating lever, wherein the shearing head comprises a tool holder, an upper blade and a lower blade; the upper and lower blades are mounted on the tool holder; the working surfaces of the upper and lower blades comprise cutting edges and clamping planes; and the clamping planes are planes arranged on the cutting edge sides. According to the flow deflector shearing device of the isolating switch, by shake of a handle, a fan gear transmits rotation to an inner lever, and the rotating inner lever transmits motion to a screw rod through a spline; as a nut is fixed, the screw rod can only do reciprocating motion up and down; the screw rod which does the reciprocating motion up and down transmits the motion to the lower blade through a connection sheet fixed at the end part of the screw rod to enable the lower blade to do closing and opening motion relative to the upper blade; and meanwhile, by the arrangement of the clamping planes on the working surfaces, the shearing effect can be enhanced, and a flow deflector which is not sheared off can be torn off.

Description

technical field [0001] The invention relates to a shearing device for a guide vane, in particular to a shearing device for a guide vane of a disconnector. Background technique [0002] Soft connection type electrical connection is the earliest form of movable electrical contact used in high-voltage disconnectors, commonly known as conductive strips. The general materials of soft connection are copper strip with a thickness of 0.1-0.2mm, aluminum foil with a thickness of about 0.2m, multi-strand copper braided wire with a single wire diameter of about 0.2mm, and multi-strand copper brush wire with a single wire diameter of about 0.1mm. The thinner the material thickness and the smaller the single wire diameter, the better the flexibility, but the lower the mechanical strength. The structural characteristics of the soft connection type electrical connection are simple in structure, easy to install, no need for sealing, and the current density of the copper soft connection can...

AI Technical Summary

Problems solved by technology

The soft connection is easy to become a weak link due to the influence of the environment, resulting in oxidation, corrosion, fracture and other phenomena, which affect the conductivity of the disconnector product

[0003] Since the conductive strip (whether it is the deflector) is exposed to various influences in the environment for a long time, a single piece will break, and usually the conductive strip is a certain distance from the ground, so it is difficult for the staff to cut it off with bare hands. There is a great potential safety hazard for the staff

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