Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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
View PDF0 Cites 8 Cited by
  • 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 and right, it becomes very difficult to check the distance and phase spacing between the upper and lower contacts of the switch, which will affect the circuit breaker. Dimension accuracy

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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

Embodiment Construction

[0011] The serial numbers in the figure respectively indicate: contact arm 1, contact arm end 2, contact hole 3, contact 4, spring clip 10, scaling gap groove 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-shaped piece 503, rotary handle 306, pad cover 307.

[0012] Referring to FIG. 2 in conjunction with FIG. 1, FIG. 2 shows the assembly structure of an embodiment of the present invention. It consists of three parts: a spring clip 10, a squeeze cup 20 and a handle assembly. The shape of the spring clip 10 is in the shape of a lampshade, and the shape of its inner cavity matches the external shape of the contact 4 of the movable 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 shape, so that the contact 4 can be put in smoothly when the spring clip 10...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01H69/00H01H11/00
Inventor 杨庆华周建明
Owner 纪元电气集团有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com