Motor strip line bar intrastrand line changing pattern weaving defect part repairing method

A strip wire and part technology, which is applied in the field of repairing defective parts of braided flowers by changing wires between strands of a motor strip wire rod, can solve the problems of uneven crossing parts of braiding, cumbersome processing procedures, and inability to achieve supplementary effects, etc. Provides the effects of production efficiency, simple trimming operation, and stable electrical performance

Inactive Publication Date: 2012-07-04
TIANJIN TIRNFR HEAVY HYDROELECTRIC FRCILITY CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The soft mica board supplemented by the braided cross section and the multi-glue mica board supplemented by the straight line after the stator bar wire is changed are damaged, resulting in the uneven cross section of the braided flower, which has a direct impact on the quality and geometric dimensions of the bar wire bar.
In order to make up for the above defects, it is necessary to use multi-glue mica boards for filling. The filled strip wire rods are then hot-pressed by the mold of the multi-head molding machine. The processing procedure is cumbersome. (Mica tape) It is difficult to fill up the defective parts, that is, the supplementary effect cannot be achieved, and the quality and geometric size of the bar bar are affected

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
  • Motor strip line bar intrastrand line changing pattern weaving defect part repairing method
  • Motor strip line bar intrastrand line changing pattern weaving defect part repairing method
  • Motor strip line bar intrastrand line changing pattern weaving defect part repairing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The method for repairing the defective part of the wire-changing braiding pattern between the strands of the motor strip wire rod is characterized in that it includes the following steps:

[0018] 1) Preparation of filler: mix evenly with mica powder, epoxy resin and curing agent in a ratio of 2:3:1 to make a paste.

[0019] 2) Place the strip wire rod 1 flat on the work table, clamp the metal splint 2 on both sides of the straight line plane of the wire rod through the cardan 3, and fill the defective parts of the braided flower between the strands of the wire rod Paste filling, make the filling higher than the plane around the bar, and then scrape the filling with bamboo slices.

[0020] 3) Tightly wrap the filling part of the strip wire rod with 2 layers of polytetrafluoroethylene tape, and the reinforcement paste is tightly attached to the defective surface.

[0021] 4) Curing treatment: Place the wound and strengthened strip wire rod 1 at room temperature for natu...

Embodiment 2

[0024] The method for repairing the defective part of the wire-changing braiding pattern between the strands of the motor strip wire rod is characterized in that it includes the following steps:

[0025] 1) Preparation of filler: mix evenly with mica powder, epoxy resin and curing agent in a ratio of 2:3:1 to make a paste.

[0026] 2) Place the strip wire rod 1 flat on the work table, clamp the metal splint 2 on both sides of the straight line plane of the wire rod through the cardan 3, and fill the defective parts of the braided flower between the strands of the wire rod Paste filling, make the filling higher than the plane around the bar, and then scrape the filling with bamboo slices.

[0027] 3) Tightly wrap the filling part of the strip wire rod with 2 layers of polytetrafluoroethylene tape, and the reinforcement paste is tightly attached to the defective surface.

[0028] 4) Curing treatment: In the case of urgent production, it needs to be dried in a drying oven at 120...

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 motor strip line bar intrastrand line changing pattern weaving defect part repairing method. The invention is characterized in that the method comprises: a filler is made into paste, a strip line bar is horizontally placed on a platform surface and clamp plates are respectively clamped by virtue of flanges, the strip line bar defect part is filled with the filler, and abamboo chip is utilized to strickle the filler; the strip line bar filling part is wound and strengthened by a polytetrafluoroethylene belt; and curing is carried out, and then a file and sand paper are utilized to polish the filling part. The invention has the advantages that measurement of the repaired motor strip line bar intrastrand line changing pattern weaving defect part is almost the samewith other parts, the repaired part has no geometrical deformation and is pressureproof, the strip line bar is ensured to be smooth an have no gap, appearance is beautiful, insulation filling of the pattern weaving defect part is full and no intrastrand short circuit phenomenon is caused, and the electrical property is stable. The method provided by invention is simple in repairing operation and can be used for greatly improving the production efficiency.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to a method for repairing defective parts of inter-strand wire-changing knitting patterns of bar-shaped wire rods of motors. Background technique [0002] At present, the stator bar of a large high-voltage motor is composed of several electromagnetic wires, which need to be padded with soft mica boards at the intersections of the braided patterns, and multi-glue mica boards on the straight parts are hot-pressed and formed, and then the inter-strand test is carried out. Inter-strand short circuit often occurs during the test, so the short circuit magnet wire must be replaced. After the stator bar wire is changed, the soft mica board supplemented by the braided cross part and the multi-glue mica board supplemented by the straight line are damaged, causing the braided cross part to be uneven, which has a direct impact on the quality and geometric dimensions of the bar bar. ...

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 Patents(China)
IPC IPC(8): H02K15/02
Inventor 向泽明石磊
Owner TIANJIN TIRNFR HEAVY HYDROELECTRIC FRCILITY CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap