Multifunctional pin puling vice

Abstract

The invention discloses a multifunctional pin pulling vice and relates to the field of mechanical tools. The multifunctional pin pulling vice comprises rotating vice bodies, a compression spring I, bolts, a supporting piece, a hollow cylindrical fixing frame, a rotating shaft body and a movable piece. The rotating vice bodies comprise the left rotating body and the right rotating body, the compression spring I is fixedly connected to the left rotating body and the right rotating body, two arc sliding grooves are formed in the support piece, the bolts are connected in the arc sliding grooves in a sliding mode, two check pins are fixedly connected to the support piece, the hollow cylindrical fixing frame is welded to the top of the support piece, a spiral groove is formed in the hollow cylindrical fixing frame, the movable piece and the rotating shaft body are movably connected together, a through hole is formed in the movable piece, a steep wire rope is connected between the two bolts through the through hole, an operation disc is welded to one end of the rotating shaft body, the left rotating body and the right rotating body of the pin pulling vice achieve fixed-axis rotation, the movable piece can be driven to move through the movement of the rotating shaft body, a sliding pin on the rotating shaft body is connected in the spiral groove in a sliding mode, and thus the rotating shaft body can move while rotating.

Description

technical field [0001] The invention relates to the field of mechanical appliances, in particular to a multifunctional pin puller. [0002] Background technique : [0003] Existing technology: In the past, ordinary suspension insulators were linear porcelain plates, and straight-handle pin pullers were used to pull out the pins. Now, when replacing the 66-220KV straight line dust-proof suspension insulators with electricity, the dust-proof suspension insulators It is a socket-shaped porcelain plate, which hinders the straight handle pin puller from working, so the equipotential method or the indirect method of destroying the first dust-proof suspension insulator on the wire side is generally used. In the equipotential operation, the staff wear pressure uniforms and enter the strong electric field along the insulation ladder, and pull out the spring pins of the dust-proof suspension insulators to replace the suspension insulators. This method has many operating personnel and...

AI Technical Summary

Problems solved by technology

In the equipotential operation, the staff wear pressure uniforms and enter the strong electric field along the insulation ladder, and then pull out the spring pins of the dust-proof suspension insulators to replace the suspension insulators. The time is long, the labor intensity of equipotential personnel is high, and the risk of operation safety is high. In the indirect operation method, the operator uses an insulating operating rod at the ground potential to destroy the dust-proof suspension insulator on the wire side, and then connects the straight-handle pin puller to the ground potential. Pull out the spring pin on the insulation operating rod. When replacing a new insulator, in order to restore the spring pin conveniently, only ordinary suspension insulators can be used near the wire side. In addition, due to the connection between the dust-proof suspension insulator and the wire clamp The opening direction of the bowl head is different, and the existing straight handle pin puller is a one-way joint, which can only be operated in one direction. The insulator is an insulating control commonly used to increase the creepage distance in high-voltage transmission lines. It is made of glass or ceramics. Because the pollution is attached to the surface of the insulator, it is easy to form a live path and shorten the creepage distance. Therefore, anti-pollution insulators are widely used at present. The insulator is designed as a skirt structure, and the pin mouth of the W-shaped pin of the insulator is located under the shield of the skirt structure. The application number is CN201520142977.7, which is a multifunctional pin puller for R-shaped pins of insulators. Although its operation is simple, Safe and reliable, you can quickly pull out the R-type pin, and you can quickly insert the R-type pin into the insulator through the pin hammer, and the construction personnel can complete the operation alone, which greatly improves the work efficiency, but it does not have the function of a thread pair. No friction-reducing features, no effort-saving faceplate handles, no versatility or novelty

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