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

Rail vehicle whole tightness test method and system

A rail vehicle and test method technology, which is applied in the field of air tightness test, can solve problems such as not being able to meet quality requirements, and achieve the effect of simple and feasible operation and high detection accuracy

Active Publication Date: 2009-01-21
CHINA RAILWAYS CORPORATION +1
View PDF0 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the production process of rail vehicles in the past, due to the limitation of technical conditions, the airtightness test of the whole vehicle was generally not carried out, but this can no longer meet the quality requirements of the rapid development of high-speed rail vehicles, so it is necessary to have a test method that can test the entire vehicle Air tightness test method

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
  • Rail vehicle whole tightness test method and system
  • Rail vehicle whole tightness test method and system
  • Rail vehicle whole tightness test method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0021] like figure 1 As shown, the airtightness test system for rail vehicles of the present invention includes: a compartment sealing device, an air source 3 , an intake pipe 4 , a solenoid valve 5 , a detection air pipe 6 , a pressure sensor 7 , and a computer console 8 .

[0022] Before carrying out the airtightness test, the entire car compartment 1 under test must be sealed. In addition to closing the windows, the doors 2 at both ends of the compartment 1 must be sealed.

[0023] Car door 2 adopts airtight end door 9 to seal, and airtight end door 9 is a frock door, and it is fixed on the door frame of car door 2, and seals with sealing strip (such as can adopt rubber strip etc.) with car door 2, and uses Tooling connects and fixes the doorframe of car door 2 with airtight end door 9. In order not to damage the doorframe of car door 2, too...

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 whole-vehicle air tightness test method of rail vehicles and a system thereof, wherein the method comprises sealing a whole-vehicle compartment, charging in the compartment, leading gas to be leaked in a natural state after stopping charging, and the pressure of air in the compartment can be gradually degraded, detecting the variable data of air pressure in the compartment in the process of descending, and judging whether the gas tightness of a vehicle is in accordance with the design requirements of vehicles. The whole-vehicle air tightness test system comprises a compartment sealing device which seals car doors on both ends, an air source which charges air in the compartment and an air inlet pipe which communicates the air source and the compartment, wherein a pipeline for connecting the air source and the air inlet pipe is provided with a magnetic valve for connecting and disconnecting the air inlet pipe, and further comprises a detecting air pipe, wherein one end of the detecting air pipe is connected with a pressure sensor for detecting pressure and a computer controlling stand for analyzing and processing various data. The whole-vehicle air tightness test method accurately judges the gas tightness of a whole-vehicle compartment through detecting the change of pressure in the carriage, the detection precision is high, and the operation is simple and feasible.

Description

technical field [0001] The invention relates to an airtightness test method and system, in particular to a method and system for performing an airtightness test on the entire body of a rail vehicle. Background technique [0002] In the production process of rail vehicles, there are many indicators used to judge the performance of the vehicle, among which the airtight performance of the vehicle is an important indicator to measure the performance of the vehicle, especially for high-speed rail vehicles with a speed of more than 200 kilometers per hour. Confidentiality is even more important. [0003] In the production process of rail vehicles in the past, due to the limitation of technical conditions, the airtightness test of the whole vehicle was generally not carried out, but this can no longer meet the quality requirements of the rapid development of high-speed rail vehicles, so it is necessary to have a test method that can test the entire vehicle Test method for airtight...

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): G01M3/26
Inventor 王小成马瑜业吕任远
Owner CHINA RAILWAYS CORPORATION
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