CN102032979B - Leakage detecting method of vacuum brake device - Google Patents
Leakage detecting method of vacuum brake device Download PDFInfo
- Publication number
- CN102032979B CN102032979B CN 200910024195 CN200910024195A CN102032979B CN 102032979 B CN102032979 B CN 102032979B CN 200910024195 CN200910024195 CN 200910024195 CN 200910024195 A CN200910024195 A CN 200910024195A CN 102032979 B CN102032979 B CN 102032979B
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- Prior art keywords
- interface
- leakage
- joint
- vacuum
- vacuum brake
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000003638 chemical reducing agent Substances 0.000 claims description 17
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000009954 braiding Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000006378 damage Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 abstract description 2
- 238000005187 foaming Methods 0.000 abstract 1
- 239000004088 foaming agent Substances 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- -1 polytetrafluoroethylene Polymers 0.000 description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 description 5
- 239000003973 paint Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Landscapes
- Valves And Accessory Devices For Braking Systems (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention relates to a leakage detecting method of a vacuum brake device. The leakage detecting method is as follows: firstly, manufacturing a reducing joint; secondly, manufacturing a plug; next, connecting an interface at one end of the reducing joint with one end of a vacuum brake pipe of a vehicle; connecting an interface at the other end of the reducing joint with one end of a woven brake hose; then connecting the other end of the woven brake hose and an air outlet of a microcontrol single vehicle tester; connecting an air inlet of the microcontrol single vehicle tester with an air source; next, finishing closing of a brake pipeline; then starting the microcontrol single vehicle tester, and coating a foaming agent on the joint position of the vacuum brake pipe of the vehicle after ventilation; and finally, after the pressure of the air source of the microcontrol single vehicle tester is increased to 400kPa, maintaining the pressure for 3 minutes, carrying out inspection on all the joint parts and judging that the foaming parts are leaking parts. By utilizing the leakage detecting method, the technical problems of low efficiency, poor effect and damage to the vacuum brake device in the background technology are solved. The leakage detecting method has the advantages that the production efficiency is high, the judgment difficulty is low and the like.
Description
Technical field
The present invention relates to a kind of leakage method of looking for of clamping device, be specifically related to a kind of leakage method of looking for of vacuum brake equipment.
Background technology
The brake system great majority of tank car are divided into air damping and vacuum braking dual mode.Vacuum braking just needs to adopt vacuum brake equipment.
Leakage rate to whole vacuum brake equipment in the vacuum braking test has following requirement: made after the vacuum of vacuum braking pipeline generations-68kPa pressurize 3 minutes, vacuum tube internal pressure rising value is answered≤3.5kPa.With vacuum braking single vehicle tester the car load vacuum brake equipment is vacuumized rear pressurize in the test, find whether the pressure rise value transfinites.If vacuum brake equipment has leakage, it is crucial finding out leakage point, existingly look for that Lou to send out method be each joint baking at vacuum brake equipment with roasting, according to roasting the variation of flare is judged whether this joint leaks, its ultimate principle is when the vacuum braking pressurize such as leak the joint, and flare can blow to this joint under the effect of air outside.
Thisly look for leakage that there is following shortcoming in method:
1.1 production efficiency is low.The joint of this car has more than 20, and each joint will be with roasting toasting judgement, and production efficiency is low, is not suitable for production in enormous quantities.
1.2 judge that difficulty is large, DeGrain.The leakage of joint leans on naked eyes to roasting flare to be judged, it usually is very faint that the flare that the leakage of joint causes changes, and has increased like this difficulty of judging, effect is not too obvious.
1.3 damage brake pipe surface paint.The brake pipe that assembling is got on the bus had been brushed paint, can cause the damage of paint in the process of baking, needed again coating.
Shrink 1.4 cause the joint polytetrafluoroethylene film, cause and do over again.The joint is that the internal thread with the external thread of brake pipe and joint links together, and the screw thread place is wound with polytetrafluoroethylene film, seals.In with the roasting process that butt junction is toasted, cause the contraction of polytetrafluoroethylene film, cause new leakage, cause and do over again.
Summary of the invention
The object of the present invention is to provide a kind of leakage method of looking for of vacuum brake equipment, it has solved, and efficient in the background technology is low, weak effect and the technical matters that can cause damage to vacuum brake equipment.
Technical solution of the present invention is:
A kind of vacuum brake equipment look for leakage method, its special character is, the method may further comprise the steps:
[1] makes a reducer union, the interface with two ends of this reducer union;
[2] make a plug, plug one end is solid, and the other end is processed into an interface;
[3] end interface with reducer union is connected with vehicle vacuum braking pipeline one end, and the other end interface of reducer union is connected with an end of braiding air-brake coupling hose, and then will weave the air-brake coupling hose other end and be connected with the air outlet of micro-control tester; The air inlet of micro-control tester is connected with wind regime;
[4] interface with plug is connected with the vehicle vacuum braking pipeline other end, finishes the brake piping sealing;
[5] open micro-control tester, smear frothing agent at the joint area of vehicle vacuum braking pipeline after ventilating;
[6] after micro-control tester wind regime pressure rises to 400kPa, pressurize 3 minutes checks above-mentioned each joint area, has the position that bubble blows afloat to be leakage position.
The method is further comprising the steps of: after above-mentioned leaky junction is processed, continue to ventilate check, until each joint without leakage phenomenon till; Guarantee to check on the quality.
Above-mentioned frothing agent is suds or washing powder water etc.
Above-mentioned interface be threaded to good.
This end interface specification of the above-mentioned reducer union that is connected with vehicle vacuum braking pipeline one end is M50; This end interface specification of the reducer union that one end described and the braiding air-brake coupling hose is connected is M42.
The interface specification of above-mentioned plug is M50.
The invention has the advantages that:
2.1 production efficiency is high.Adopt patented technology, can smear simultaneously suds to the joint of this car, ventilate simultaneously and look for leakage, do not need each joint is toasted separately, greatly improved production efficiency.
2.2 judge that difficulty is little, the good results are evident.Leakage position can blow afloat soap bubble under the effect of air pressure (400kPa), with the naked eye judge, difficulty is little, and effect is very obvious.
2.3 not injury is painted on the brake pipe surface.Adopt the present invention, do not need again the brake pipe joint to be toasted, brake pipe is painted not injury.
2.4 can not cause the joint polytetrafluoroethylene film shrinks and causes and do over again.Adopt the present invention, do not need the baking of brake pipe joint again, polytetrafluoroethylene film can not shrink, and can not cause the false judgment of butt junction place yet and does over again.
Description of drawings
Fig. 1 is FB(flow block) of the present invention.
Embodiment
The method of looking for leakage of the present invention is based on such thought: make a reducer union and plug, reducing one end is connected to the termination of vacuum plant, the other end and micro-control tester (test on air brake with) are connected, and brake piping are sealed with plug at the vehicle other end.Ventilation is beaten malleation to whole vacuum line, smears suds in each joint, pressurize after ventilating, and the joint that soap bubble blows afloat is leakage position.
The concrete step of the present invention is:
[1] make a reducer union, the interface with two ends of this joint all is processed into internal thread with two end interfaces, and an end internal thread is M50, and other end internal thread is M42;
[2] make a plug, plug one end is solid, and the interface of the other end is processed into internal thread, and specification is M50;
[3] end of reducer union M50 end interface with vehicle vacuum braking pipeline is connected, reducer union M42 end interface is connected with an end of braiding air-brake coupling hose, and then will weave the air-brake coupling hose other end and be connected with the micro-control tester air outlet, the air inlet of micro-control tester is connected with wind regime.
[4] plug M50 end interface is connected with the vehicle vacuum braking pipeline other end, finishes the brake piping sealing;
[5] open micro-control tester, smear suds or washing powder water at the joint area of vehicle vacuum braking pipeline after ventilating;
[6] after micro-control tester wind regime pressure rises to 400kPa, pressurize 3 minutes checks each joint, has the position that bubble blows afloat to be leakage position;
[7] above-mentioned leakage position is carried out fastening processing after, continue to ventilate check, until each joint without leakage phenomenon till;
[8] take off again micro-control tester, reducer union and plug, again vacuum braking single vehicle tester is accessed the vacuum braking pipeline carry out after vacuum test.
Claims (6)
- A vacuum brake equipment look for leakage method, it is characterized in that, the method may further comprise the steps:[1] make a reducer union, this reducer union has the interface of two ends;[2] make a plug, plug one end is solid, and the other end is processed into an interface;[3] end interface with reducer union is connected with vehicle vacuum braking pipeline one end, and the other end interface of reducer union is connected with an end of braiding air-brake coupling hose, and then will weave the air-brake coupling hose other end and be connected with the air outlet of micro-control tester; The air inlet of micro-control tester is connected with wind regime;[4] interface with plug is connected with the vehicle vacuum braking pipeline other end, finishes the brake piping sealing;[5] open micro-control tester, smear frothing agent at the joint area of vehicle vacuum braking pipeline after ventilating;[6] after micro-control tester wind regime pressure rises to 400kPa, pressurize 3 minutes checks above-mentioned each joint area, has the position that bubble blows afloat to be leakage position.
- According to claim 1 described vacuum brake equipment look for leakage method, it is characterized in that, the method is further comprising the steps of: after above-mentioned leakage position was processed, continuing to ventilate checked, until each joint without leakage phenomenon till.
- According to claim 1 and 2 described vacuum brake equipment look for leakage method, it is characterized in that: described frothing agent is suds or washing powder water.
- According to claim 3 described vacuum brake equipment look for leakage method, it is characterized in that: described interface is and is threaded.
- According to claim 4 described vacuum brake equipment look for leakage method, it is characterized in that: this end interface specification of the described reducer union that is connected with vehicle vacuum braking pipeline one end is M50; This end interface specification of the reducer union that one end described and the braiding air-brake coupling hose is connected is M42.
- According to claim 5 described vacuum brake equipment look for leakage method, it is characterized in that: the interface specification of described plug is M50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910024195 CN102032979B (en) | 2009-09-30 | 2009-09-30 | Leakage detecting method of vacuum brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910024195 CN102032979B (en) | 2009-09-30 | 2009-09-30 | Leakage detecting method of vacuum brake device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102032979A CN102032979A (en) | 2011-04-27 |
| CN102032979B true CN102032979B (en) | 2013-01-23 |
Family
ID=43886168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910024195 Expired - Fee Related CN102032979B (en) | 2009-09-30 | 2009-09-30 | Leakage detecting method of vacuum brake device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102032979B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558001A (en) * | 2013-11-14 | 2014-02-05 | 宁夏中远天晟科技有限公司 | Water pressure test automatic detecting device for flexible brake hose of railway freight car |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2914060Y (en) * | 2006-05-04 | 2007-06-20 | 赵长民 | Mobile microcontrolling bicycle test equipment of self-feeding air |
| CN201191239Y (en) * | 2008-05-07 | 2009-02-04 | 长春轨道客车股份有限公司 | Vacuum braking single vehicle tester for railway vehicle |
-
2009
- 2009-09-30 CN CN 200910024195 patent/CN102032979B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2914060Y (en) * | 2006-05-04 | 2007-06-20 | 赵长民 | Mobile microcontrolling bicycle test equipment of self-feeding air |
| CN201191239Y (en) * | 2008-05-07 | 2009-02-04 | 长春轨道客车股份有限公司 | Vacuum braking single vehicle tester for railway vehicle |
Non-Patent Citations (1)
| Title |
|---|
| JP平2-212733AA 1990.08.23 |
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| Publication number | Publication date |
|---|---|
| CN102032979A (en) | 2011-04-27 |
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| C14 | Grant of patent or utility model | ||
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Address after: Three Town Weiyang District 710086 Shaanxi city of Xi'an Province Patentee after: CRRC XI'AN Co.,Ltd. Address before: 710086 Xi'an City, Shaanxi Province town of three Patentee before: XI' AN RAILWAY TRANSPORTATION EQUIPMENT Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 |