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

Distance adjustment tool for assembly of circuit breaker and assembly of crank arm box of circuit breaker

A technology of circuit breaker assembly and arm box, applied in the direction of calibrating/finding protection devices, etc., can solve the problems of asynchronous closing and opening, deformation and movement resistance of interphase tie rods, and inconsistent input angle of arm inclination, etc., to ensure operation reliability. , Increase exercise resistance, the effect of consistent inclination angle

Inactive Publication Date: 2014-11-05
STATE GRID CORP OF CHINA +1
View PDF5 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the circuit breaker is assembled, it is necessary to adjust the opening distance of the dynamic and static contacts. The existing adjustment method is: when the three-phase single-pole is installed on the chassis, the consistency of the fracture dimensions of the three-phase single-pole is based on The characteristic tester reflects the asynchrony between the phases, and then adjust the opening distance of each dynamic and static contact by adjusting the effective connection length of the tie rods between the phases. At this time, adjusting the tie rods between the phases will inevitably cause the input crank The inconsistency of the inclination angle will inevitably lead to asynchronous closing and opening of the moving and static contacts of each phase; at the same time, the inclination deviation of the input crank arm of the three phases will inevitably cause deformation of the interphase tie rods and increase in motion resistance, affecting the circuit breaker. The operational reliability of the drive and the fatigue life of the transmission components

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
  • Distance adjustment tool for assembly of circuit breaker and assembly of crank arm box of circuit breaker
  • Distance adjustment tool for assembly of circuit breaker and assembly of crank arm box of circuit breaker
  • Distance adjustment tool for assembly of circuit breaker and assembly of crank arm box of circuit breaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] An example of a crank box assembly such as Figure 4~6 As shown: it includes a crank box 15, on which a transmission shaft 14 is rotated, and an input crank arm 13 and an output crank arm 16 are arranged on the transmission shaft. It includes the first brake lever 17 and the second brake lever 20 which are set separately, wherein the first brake lever is hinged on the output crank arm, the second brake lever is used to install the moving contact 21, and the first and second brake levers are connected in series. Equipped with an adjusting screw 18, the two ends of the adjusting screw are respectively screwed on the first and second brake rods, and the second brake rod can be moved toward or away from the first brake rod by adjusting the screw, thereby adjusting the moving contact and the static contact 22 spacing between. The crank arm box is provided with a tooling matching structure for detachable connection with the crank arm limiting structure. The tooling matching ...

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 invention relates to a distance adjustment tool for assembly of a circuit breaker and an assembly for a crank arm box of the circuit breaker. The distance adjustment tool comprises a crank arm limitation structure which is detachably assembled on the corresponding crank arm box during use for limiting the swinging of an input crank arm, the distance adjustment tool also comprises an adjustment rod arranged on a corresponding switching brake bar in series, and an adjustment screw rod is arranged on the adjustment rod and is in threaded connection with the switching brake bar for adjusting the distance between a corresponding movable contact and a fixed contact. The distance adjustment tool for the assembly of the circuit breaker, provided by the invention, can be used for adjusting the distance between the movable contact and the fixed contact and ensuring that inclined angles of input crank arms of different phases are consistent.

Description

technical field [0001] The invention relates to a distance adjusting tool for assembling a circuit breaker and a crank box assembly of the circuit breaker. Background technique [0002] Existing circuit breakers such as Figure 1-3 Shown: including the bottom frame 2, three crank box assemblies are arranged side by side along the left and right directions on the bottom frame, and the three-phase monopole 1 corresponding to each crank box assembly is also arranged on the bottom frame, and the crank box assembly It is equipped with a crank box 5 and a transmission shaft 3 rotatably assembled on the crank box. The transmission shaft is provided with an input crank arm 4 and an output crank arm 7. The adjacent input crank arms are connected through the interphase pull rod 6. It is connected with an opening and closing lever 8 with a moving contact 9 at the end, and the end of the opening and closing lever extends into the corresponding single pole, and each single pole is provid...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H01H69/01
Inventor 李禹生罗干平刘雅娟何超李宝红裴韶光
Owner STATE GRID CORP OF CHINA
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