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

Method for repairing transverse threaded holes of bogie of passenger train

A technology of a railway passenger car and a repair method, which is applied in the field of rail transit equipment repair, can solve the problems of low success rate of one repair, many rework times, low efficiency, etc., and achieves convenient alignment and tapping, high repair efficiency, and high quality of plugging welding. Effect

Active Publication Date: 2021-05-28
柳州机车车辆有限公司
View PDF17 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for repairing the transverse threaded hole of the railway passenger car bogie, which can solve the problems of low efficiency, low precision, many times of rework and low success rate of one repair in the existing repair of the threaded hole of the railway passenger car bogie

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
  • Method for repairing transverse threaded holes of bogie of passenger train
  • Method for repairing transverse threaded holes of bogie of passenger train
  • Method for repairing transverse threaded holes of bogie of passenger train

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The present invention will be described in further detail below in conjunction with accompanying drawing embodiment:

[0030] Such as figure 2 , Figure 4 with Figure 7 As shown, the method for repairing the transverse threaded hole of the railway passenger car bogie uses a special welding torch 3, a drilling positioning tool 6, a universal rocker drill and a universal tapping machine 7 installed on a trolley 8, and a universal tapping machine 7 in the repair process. Radial drill and universal tapping machine 7 are commercially available products. Such as figure 2 As shown, the bending degree of the wire feeding guide 3-1 of the special welding torch 3 is 90°, and the wire feeding guide 3-1 is covered with a coaxial protective cover 3-2. Figure 4 with Figure 5 The shown drilling positioning tool 6 includes a positioning shaft 6-3 and a positioning plate 6-1 connected to one end of the positioning shaft 6-3. The positioning plate 6-1 is provided with a positio...

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

PropertyMeasurementUnit
distanceaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for repairing transverse threaded holes of a bogie of a passenger train, and relates to the technical field of rail transit equipment repairing. The method comprises the steps of 1, detecting, 2 broaching, 3 blocking the holes, 4 drilling bottom holes, 5 tapping and 6 inspecting. In the step 1, the bogie is placed on a maintenance platform, the threaded holes in the bogie are transversely arranged, and whether each threaded hole is damaged or not is detected; in the step 2, a universal radial drill is used for broaching the damaged threaded holes; in the step 3, the damaged threaded holes are subjected to plugging welding through a special welding gun, the center line of a protective sleeve of the special welding gun is kept parallel to the center line of each expansion hole in the plugging welding process, and a welding bead is covered with protective gas; in the step 4, a corresponding drilling positioning tool is selected and installed according to the positions of the damaged threaded holes, and the universal radial drill is used for drilling the bottom holes in hole blocking parts; and in the step 5, a universal tapping machine installed on a trolley is used for tapping the bottom holes. According to the method, the problems that existing railway carriage bogie threaded hole repairing is low in efficiency, low in precision, high in reworking frequency and low in one-time repairing success rate are solved.

Description

technical field [0001] The invention relates to the technical field of rail transit equipment repair, in particular to a process method for repairing a transverse threaded hole of a railway passenger car bogie. Background technique [0002] The PW-220K bogie belongs to the 25T railway passenger car bogie series. It is designed to meet the fifth large-scale speed increase of domestic railways. Kilometer power concentrated Fuxing EMU trailer part. The threaded holes of the positioning seat belonging to the bogie frame are the key parts, but these threaded holes are often damaged. In order to meet the normal working requirements of the bogie, the threaded holes of the bogie need to be inspected regularly. The repaired threaded holes of the positioning seat , using the M20 thread go-stop gauge should be able to stop within 5 buckles without obvious shaking. In the railway passenger car remanufacturing industry, an existing method for repairing the transverse threaded hole of t...

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): B23P6/00
CPCB23P6/00Y02W30/56
Inventor 王舒恒
Owner 柳州机车车辆有限公司
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