Circuit-breaker bundling type moveable contact special mounting tool

An installation tool and bundled technology, applied in the manufacture of circuits, emergency protection devices, emergency protection devices, etc., can solve problems such as time-consuming and labor-intensive efficiency, difficulty in checking switch distance and phase spacing, and affecting the accuracy of circuit breaker dimensions. Achieve the effect of good assembly quality and ensure accuracy

Inactive Publication Date: 2007-03-28
纪元电气集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing problems are: free-hand installation is time-consuming and labor-intensive, and the efficiency is low. Furthermore, because the bundled contacts can shake up and down, left

Method used

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  • Circuit-breaker bundling type moveable contact special mounting tool
  • Circuit-breaker bundling type moveable contact special mounting tool
  • Circuit-breaker bundling type moveable contact special mounting tool

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0011] The serial numbers in the figure indicate: contact arm 1, contact arm end 2, contact hole 3, contact 4, spring clip 10, zoom gap 101, squeeze cup 20, cup mouth 201, pull rod 30, upper shaft head 301, lower shaft head 302, nut 303, washer 304, spring clamp nut 305, handle 50, cam 501, shaft pin 502, I-piece 503, rotating handle 306, gasket 307.

[0012] Referring to Fig. 2 in conjunction with Fig. 1, Fig. 2 shows an assembly structure of an embodiment of the present invention. It is composed of three parts: a spring clip 10, a squeeze cup 20 and a handle assembly. The shape of the spring clip 10 is a lampshade shape, and its inner cavity shape matches the outer shape of the contact 4 of the moving contact. Since the outermost periphery of the contact 4 is a spring, the inner edge and inner wall of the spring clip 10 should also have corresponding The shape enables the contact 4 of the spring clip 10 to be smoothly placed in the loosened state. The material of the spring clip...

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PUM

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Abstract

The dedicated installation tool is composed of spring clamp, extrusion cup and handle. The spring clamp is in shape of lamp cover. Shape of cavity of the clamp is matched to external shape of contactors of the moving contact. Scaling clearance grooves towards to opening on top of the cover are setup on wall of the cover. The extrusion cup is sheathed on periphery of the clamp. There is gap between base of the spring clamp and base of the extrusion cup. A pull rod connects with the clamp and the extrusion cup in series, the other end is connected to handle. Changing position of the handle makes the clamp stretch along axial direction inside cavity. Using the pull rod to control retraction of the spring clamp, the invention simulates hand to hold contacts. Thus, the contact arms can be assembled into breaker in advance to check and adjust distance and gap between contactors, and afterward to install contactors. The invention installs moving contactor and guarantees size of breaker.

Description

technical field [0001] The invention belongs to a special tool for installing a bundled movable contact of a medium and high voltage circuit breaker. Background technique [0002] In medium and high voltage circuit breakers, some main conductive circuits are realized through the contact of circular bound moving contacts (commonly known as plum blossom moving contacts) and static contacts. The moving contact is composed of the contact and the contact arm. In order to ensure the effective contact between the inner cavity of the contact and the end of the contact arm, a very tight spring is provided around the contact. Therefore, the actual assembly is very difficult. The structure of the moving contact is shown in Figure 1, and 5 in the figure is bound as a binding spring. When assembling, it is necessary to align the contact center hole 3 of the contact 4 with the end of the contact arm 2 and insert the two together. Before the present invention was made, the assembly work h...

Claims

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Application Information

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IPC IPC(8): H01H69/00H01H11/00
Inventor 杨庆华周建明
Owner 纪元电气集团有限公司
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