Demounting tool for GW5 knife contact fingers
A technology for disassembling and assembling tools and fingers, which is applied in switchgear, electrical components, etc., and can solve the problems of high work intensity of workers, difficult operation of workers, injuries, etc.
Active Publication Date: 2013-09-11
STATE GRID CORP OF CHINA +2
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In the process of replacing the contact finger parts of the knife switch, due to the large spring tension, the operator is more difficult to operate, and may even be injured due to improper force
In addition, there are many pairs of contact fingers in the GW5 knife switch. During the installation of the new knife switch, it usually takes about half an hour to install the contacts completely. The installation efficiency is low and the staff work hard.
Method used
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[0016] Below in conjunction with accompanying drawing, the present invention is described in further detail:
[0017] The disassembly and assembly tool for the contact finger of GW5 knife switch, its structure is shown as follows figure 1 As shown, it includes oblique extension section 1, inverted L-shaped connecting section 3, supporting section 4 and handle 6, oblique extending section 1, inverted L-shaped connecting section 3, supporting section 4 and handle 6 are bent by a hard metal rod Formed in one go. Wherein, the oblique extension section 1 is used to insert and stir up the spring between the contact fingers, one end of the oblique extension section 1 is provided with a hook 7, the hook 7 is set away from the contact finger spring, and the hook 7 is used to hook the spring; The other end of the oblique extension section 1 is connected to the support section 4 by an inverted L-shaped connecting section 3, the support point of the support section 4 is arranged on the c...
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The invention discloses a demounting tool for GW5 knife contact fingers. The demounting tool comprises a slant extension segment used for lifting up one spring between contact fingers in a contact finger slot. A hook opposite to the contact finger spring and used for hooking the spring is arranged at one end of the slant extension segment. A support segment for supporting is connected to the other end of the slant extension segment through an inverted-L-shaped connecting segment. A handle convenient to hold by hands is connected to the outer end of the support segment in an arc transition manner. The slant extension segment, the inverted-L-shaped connecting segment, the support segment and the handle are formed by bending a hard metal rod once. The demounting tool has the advantages of safety in operation and convenience for demounting and mounting, and is available for fast change of the GW5 knife contact fingers.
Description
technical field [0001] The invention relates to a maintenance tool in the electric power industry, in particular to a tool for disassembling and assembling contact fingers of a knife switch. Background technique [0002] The knife switch is widely used in the power industry. The main function of the knife switch is to realize the disconnection or connection of the busbar and the secondary equipment by controlling the opening and closing of the knife switch when the equipment is overhauled or the power operation mode is changed. The knife switch is in the open state. In the state, an obvious disconnection point is formed in the transmission line. The contact finger is an important component of the knife switch. It includes a contact finger and a spring. Every two contact fingers form a pair of contact fingers. In each pair of contact fingers, a spring is connected between the two contact fingers. In the GW5 knife switch contact In the middle of the finger, each contact finge...
Claims
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IPC IPC(8): H02B3/00
Inventor 王强李建伟
Owner STATE GRID CORP OF CHINA