CN103474891A

CN103474891A - Torque spanner special for contact conductive arm of middle-arrangement type handcart circuit breaker

Info

Publication number: CN103474891A
Application number: CN201310418062XA
Authority: CN
Inventors: 朱迎阳
Original assignee: State Grid Corp of China SGCC; State Grid Jiangsu Electric Power Co Ltd; Nantong Power Supply Co of Jiangsu Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; State Grid Jiangsu Electric Power Co Ltd; Nantong Power Supply Co of Jiangsu Electric Power Co Ltd
Priority date: 2013-09-16
Filing date: 2013-09-16
Publication date: 2013-12-25

Abstract

The invention discloses a torque spanner special for a contact conductive arm of a middle-arrangement type handcart circuit breaker. The torque spanner special for the contact conductive arm of the middle-arrangement type handcart circuit breaker comprises a handhold handle, a torque spanner body and a lengthened rod, wherein the handhold handle is fixedly connected with the torque spanner body, one end of the lengthened rod is fixedly connected with a hexagonal rod, and the other end of the lengthened rod is connected to the torque spanner body through a square blind hole which is consistent with a square rod of the torque spanner body. Due to the fact that the lengthened rod can conveniently extend into the contact conductive arm of the middle-arrangement type handcart circuit breaker, a bolt can be fastened. According to the torque spanner special for the contact conductive arm of the middle-arrangement type handcart circuit breaker, due to the fact that a torque spanner is improved, the torque requirement for the fixing bolt of the contact conductive arm of the middle-arrangement type handcart circuit breaker can be completely met, and the rod parts which are adopted are firm in structure, good in performance, and convenient to machine and manufacture.

Description

The special-purpose torque spanner of middle truck contact of breaker conductive arm

Technical field

The present invention relates to a kind of spanner, particularly the special-purpose torque spanner of a kind of middle truck contact of breaker conductive arm.

Background technology

The middle truck circuit breaker is the capital equipment of the complete power distribution equipment of indoor 12～40.5V single busbar connection and sectionalized single busbar connection system, be widely used at present in the transformer station of power plant, station service distribution system, electric power system, and, along with the development of power industry, use amount is increasing.

The set bolt design of middle truck contact of breaker conductive arm is in the dark inside of conductive arm, conventional instrument is difficult to carry out fastening, on-the-spot some self-made tools that use, although can meet fastening basic demand, but owing to not using torque spanner, so can't meet exactly the moment requirement of bolt standard.Loosening fever phenomenon occurs once the contact of breaker conductive arm is in operation, directly affect power system security, reliability service.

Summary of the invention

The special-purpose torque spanner of contact of breaker conductive arm that the object of the present invention is to provide a kind of moment that meets middle truck contact of breaker conductive arm set bolt to require.

The present invention is achieved in that

The special-purpose torque spanner of contact of breaker conductive arm, comprise gripping handle, torque spanner and extension bar, gripping handle is fixedly connected with torque spanner, one end of extension bar is fixedly connected with six square bars, the other end is connected on torque spanner with the consistent cubic blind hole of torque spanner four directions bar by one, be easy to like this dismounting and carry, can stretch into easily the inner fastening bolt of middle truck contact of breaker conductive arm.

The present invention, by the improvement to torque spanner, meets the moment requirement to contact of breaker conductive arm set bolt fully, and the member structure of employing is firm, functional, and processing and fabricating is convenient.

Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.

Fig. 1 is vertical view of the present invention;

Fig. 2 is front view of the present invention.

Wherein: 1, six square bars, 2, extension bar, 3, gripping handle, 4, torque spanner, 5, cubic blind hole.

Embodiment

As depicted in figs. 1 and 2, the special-purpose torque spanner of middle truck contact of breaker conductive arm of the present invention, comprise extension bar 2, gripping handle 3 and torque spanner 4, gripping handle 3 is fixedly connected with torque spanner 4, and an end of extension bar is fixedly connected with six square bars, the other end is connected on torque spanner by a cubic blind hole 5 consistent with the cubic bar of torque spanner 4.

The extension bar of special-purpose torque spanner is stretched into to the inner bolt that need to be fastening of contact of breaker conductive arm, torque spanner 4 is regulated according to the requirement of fastening Bolt Torque, assurance meets the requirement of Bolt Torque, torque spanner 4 interacts with the gripping handle 3 be fixedly connected with it, makes force balance equably to bolted.

Between the torque spanner 4 of the special-purpose torque spanner of middle truck contact of breaker conductive arm and extension bar 2, by a cubic bar, with cubic blind hole 5, is connected, for convenience detach with carry.

Claims

1. the special-purpose torque spanner of middle truck contact of breaker conductive arm, comprise gripping handle, torque spanner and extension bar, it is characterized in that: described gripping handle is fixedly connected with torque spanner, and an end of described extension bar is fixedly connected with six square bars, the other end is connected on described torque spanner with the consistent cubic blind hole of described torque spanner four directions bar by one.