CN103439068A - Method for measuring leakage amount of brake cylinder of passenger car - Google Patents
Method for measuring leakage amount of brake cylinder of passenger car Download PDFInfo
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- CN103439068A CN103439068A CN2013103746512A CN201310374651A CN103439068A CN 103439068 A CN103439068 A CN 103439068A CN 2013103746512 A CN2013103746512 A CN 2013103746512A CN 201310374651 A CN201310374651 A CN 201310374651A CN 103439068 A CN103439068 A CN 103439068A
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- brake
- checking cylinder
- cylinder
- auxiliary reservoir
- single car
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Abstract
The invention relates to a method for measuring the leakage amount of a brake cylinder of a passenger car. The aim that the method rapidly and accurately measures the leakage amount of the brake cylinder in the process of testing of a single car of railway vehicles is effectively achieved. According to the method, firstly, equipment is installed, a single car testing device is connected with a main air source through an air source pipe and is connected with a car brake pipe through a brake pipe, a blow-down valve of a blow-down port of an auxiliary air cylinder of the car is removed, a pressure detector of the auxiliary air cylinder is installed, a tee plug on a connection pipeline of the brake cylinder is removed, a pressure detector of the brake cylinder is installed, a piston stroke detector of the brake cylinder is installed at the portion of a piston of the brake cylinder, the single car testing device is started, all tests of the single car are conducted, the single car testing device automatically records the curves of pressure intensity, changing with the time, of the brake pipe, the brake cylinder and the auxiliary air cylinder, and according to the variable quantity delta Pf of the pressure intensity of the auxiliary air cylinder in the brake and pressure maintaining processes and the formula: delta Pz=6.25*delta Pf, the leakage amount of the brake cylinder is measured. The method is easy to operate, high in speed, high in efficiency, accurate in test, and capable of rapidly and accurately measuring the leakage amount of the brake cylinder.
Description
Technical field
The present invention relates to railway security, in passenger train single car test process, measure quickly and accurately a kind of measuring method of passenger vehicle checking cylinder leak volume of the leak volume of checking cylinder.
Background technology
The stable test determination of braking " pressurize 1min after brake-cylinder pressure is stable, checking cylinder and connecting pipe leak volume must not be greater than 10kPa " of " microcomputer is controlled passenger car brake single car test standard ".
During service lap, because 104 type air dampers have auxiliary reservoir to the effect of checking cylinder automatic air compensation, existing single car testing device can't be measured the checking cylinder leak volume.In November, 2010, former Tiedaobu Transportation Bureau organizes expert, single car testing device manufacturer to hold special meeting in Beijing, does not draw solution in meeting.
Yet, in the omnibus train practice, exist in a large number certain passenger vehicle checking cylinder to sew and then cause the phenomenon that the train brake pipe leak volume exceeds standard.Take certain rolling stock section's passenger train technical servicing point on February 1st, 2013 is example, and whole day inspection car 28 row have 4 row exist certain passenger vehicle checking cylinder to sew and then cause the phenomenon that the train brake pipe leak volume exceeds standard.
" microcomputer is controlled omnibus train brake experiment standard " only is defined under the service lap state, and pressurize 1min train brake pipe must not sew over 20kPa.That is to say within the 1st minute, have slightly and sew, the 2nd minute starts to sew the Train experiment exceeded standard is qualified.Obviously do not consider that checking cylinder sews the situation that causes that brake pipe is sewed.If locomotive pressurize test is not since timing in the 1st minute, will cause Train delay.If speed governing in the way of long steep grade decompression driver 50kPa～100kPa, the brake pipe continuous decrease can cause that each car brake-cylinder pressure continues to rise.Checking cylinder is sewed and may be caused the passenger vehicle integral point or uncouple midway, jeopardizes traffic safety when serious.For this reason, most of rolling stock section has put into effect the empty measure of internal risks card, and the per minute leak volume that continues the pressurize test of 5min all must not surpass 10kPa.
Although cause the reason of this phenomenon more, sew such as checking cylinder is sudden.But, when the passenger vehicle section is repaiied, obviously checking cylinder is sewed the vehicle of severe overweight, can't Measurement accuracy checking cylinder leak volume due to existing single car testing device, but be easy to just pass through single car test and examination, thereby buried potential safety hazard.Therefore, single car testing device Measurement accuracy checking cylinder leak volume is most important, urgently to be resolved hurrily.
Summary of the invention
For above-mentioned situation, for overcoming the defect of prior art, the present invention's purpose just is to provide a kind of measuring method of passenger vehicle checking cylinder leak volume, can effectively solve in rolling stock single car test process, measure quickly and accurately the leak volume of checking cylinder, guarantee the problem that the railway traffic driving is installed.
The technical scheme that the present invention solves is, at first erecting equipment, single car testing device is connected with total wind regime by the wind regime pipe, by brake pipe, with brake pipe, be connected, lay down the blowoff valve of vehicle auxiliary reservoir sewage draining exit, the auxiliary reservoir pressure detecting instrument is installed, lay down the threeway plug on the checking cylinder connecting line, the brake-cylinder pressure detector is installed, the piston travel detector is arranged on to the checking cylinder piston region, open single car testing device, carry out the every test of bicycle according to " microcomputer is controlled passenger car brake single car test standard " regulation, single car testing device records brake pipe automatically, checking cylinder, auxiliary reservoir pressure temporal evolution curve, variation delta P according to auxiliary reservoir pressure in the service lap process
f, according to formula Δ P
z=6.25 Δ P
fmeasure the leak volume of checking cylinder.
Testing apparatus of the present invention is installed simple, and method is easy to operate, and speed is fast, and efficiency is high, and test accurately, is effective to the measurement of passenger vehicle checking cylinder leak volume, measures quickly and accurately the leak volume of checking cylinder, guarantees the safety of railway traffic driving.
The accompanying drawing explanation
Fig. 1 is measuring equipment structural drawing of the present invention.
Fig. 2 is the test curve figure that simulating brake cylinder of the present invention is sewed.
Embodiment
Below in conjunction with concrete condition, the specific embodiment of the present invention is elaborated.
By Fig. 1, provided, the present invention in the specific implementation, is realized by following steps:
(1), at first erecting equipment: described equipment comprises single car testing device, the brake-cylinder pressure detector, the auxiliary reservoir pressure detecting instrument, the piston travel detector, single car testing device 2 is connected with total wind regime by wind regime pipe 1, by brake pipe 3, with brake pipe, be connected, lay down the blowoff valve of vehicle auxiliary reservoir sewage draining exit, auxiliary reservoir pressure detecting instrument 4 is installed, lay down the threeway plug on the checking cylinder connecting line, brake-cylinder pressure detector 5 is installed, piston travel detector 6 is arranged on to the checking cylinder piston region, and (each parts of top are prior art, market is on sale, contribution of the present invention is that their science are combined, form a kind of measuring equipment of passenger vehicle checking cylinder leak volume),
(2), leak volume is measured:
Open single car testing device 2, carry out the bicycle measurement according to " microcomputer is controlled passenger car brake single car test standard " regulation, single car testing device 2 records brake pipe, checking cylinder, auxiliary reservoir pressure temporal evolution curve (as shown in Figure 2), the variation delta P according to auxiliary reservoir pressure in the service lap process automatically
f, according to formula Δ P
z=6.25 Δ P
fmeasure the leak volume of checking cylinder, wherein Δ P
fvariable quantity for service lap 1min auxiliary reservoir pressure; Δ P
zfor turn-offing the graduated release valve on connecting pipe between checking cylinder and intermediate, the pressure change amount of checking cylinder while making auxiliary reservoir not mend wind to checking cylinder; The volumetric ratio of auxiliary reservoir and checking cylinder is designated as
:
Based on experience value, the volumetric ratio of auxiliary reservoir and checking cylinder
1. the substitution formula, obtains:
Δ P
z=6.25 Δ P
fformula 2.
Auxiliary reservoir pressure change amount Δ P
fmeasured by the auxiliary reservoir pressure detecting instrument when doing single car test, thereby calculate checking cylinder leak volume Δ P
z, realize the measurement of measurement passenger vehicle checking cylinder leak volume of the present invention.
Described single car test instrument 2 provides wind regime for whole test, and carry out whole test, externally by brake pipe 3, connect brake pipe, connect total wind regime by wind regime pipe 1, single car testing device 2 has been realized time unification with auxiliary reservoir pressure detecting instrument 4 and brake-cylinder pressure detector 5, unified error≤10ms.
In test, 104 valves of the checking cylinder be connected with pressure detecting instrument have checking cylinder automatic air compensation function, can realize in the service lap position requirement that damping force is unattenuated, on-the-spot test shows, when checking cylinder is sewed, braking is unloaded cylinder pressure and is not almost changed, and auxiliary reservoir pressure continuous decrease, when at certain car checking cylinder, blocking and make a call to a hole, aperture is 1.5mm.The simulating brake cylinder is sewed, by this stifled being arranged on the checking cylinder sewage draining exit, by the graduated release valve lower end with holes stifled be replaced with not with holes stifled, after closing graduated release valve, not only cut off the path of auxiliary reservoir and checking cylinder, also cut off the path of checking cylinder and atmosphere, the brake-cylinder pressure air can only be by the hole that sets to the atmosphere that bleeds, like this with regard to energy analogue measurement checking cylinder self leak volume (analog case of the test curve that the simulating brake cylinder is sewed as shown in Figure 2) simultaneously;
Calculate checking cylinder and sew the time period that causes that auxiliary reservoir pressure descends, starting point is got the A point, and terminating point is got the B point.A point, corresponding 18:07:47, the 18:08:14, timing 27s of constantly being respectively of B point.The pressure P' that the A point is corresponding
z=438kPa, P'
f=480kPa.The pressure P that the B point is corresponding
z=438kPa, P
f=453kPa.Substitution formula 6, draw Δ P
z=168.75kPa.While being scaled 60s, Δ P
z=168.75*60/27=375kPa.
The C point, for closing graduated release valve, has blocked the path between auxiliary reservoir and checking cylinder, measures checking cylinder self leak volume.Calculate the time period that checking cylinder self is sewed, starting point is got the C point, and terminating point is got the D point.C point, the corresponding moment of D point are respectively 18:08:26,18:08:53, and timing is also 27s.C point, the corresponding checking cylinder pressure of D point are respectively 435kPa, 265kPa, directly draw Δ P
z=170kPa.While being scaled 60s, Δ P
z=170*60/27=378kPa.
As can be seen here, by measuring the auxiliary reservoir leak volume, the checking cylinder leak volume that uses formula of the present invention to calculate, with the numerical value of direct measurement checking cylinder leak volume, substantially equate, show that method is reliable, be effective to measure passenger vehicle checking cylinder leak volume, prevent vehicle generation security incident, actual using value is arranged.
By above-mentioned situation, shown, contribution of the present invention is, utilize the variation of Passenger Vehicle auxiliary reservoir pressure in the service lap process, calculate the checking cylinder leak volume, solved because the auxiliary reservoir of 104 valves is mended the technical barrier that checking cylinder leak volume that the wind effect causes can't be measured.Really having realized the checking cylinder leak volume measurement requirement of " microcomputer is controlled passenger car brake single car test standard " regulation, is the large innovation and creation of one on transportation by railroad and brake experiment, has significant social benefit, economic benefit.
Claims (2)
1. the measuring method of a passenger vehicle checking cylinder leak volume, is characterized in that, by following steps, realized:
One, erecting equipment at first: described equipment comprises single car testing device, brake-cylinder pressure detector, auxiliary reservoir pressure detecting instrument, piston travel detector, single car testing device (2) is connected with total wind regime by wind regime pipe (1), by brake pipe (3), with brake pipe, be connected, lay down the blowoff valve of vehicle auxiliary reservoir sewage draining exit, auxiliary reservoir pressure detecting instrument (4) is installed, lay down the threeway plug on the checking cylinder connecting line, brake-cylinder pressure detector (5) is installed, piston travel detector (6) is arranged on to the checking cylinder piston region;
Two, leak volume is measured:
Open single car testing device (2), carry out the bicycle measurement according to " microcomputer is controlled passenger car brake single car test standard " regulation, single car testing device (2) records brake pipe, checking cylinder, auxiliary reservoir pressure temporal evolution curve, the variation delta P of auxiliary reservoir pressure in the service lap process automatically
f, according to formula Δ P
z=6.25 Δ P
fmeasure the leak volume of checking cylinder, wherein Δ P
fvariable quantity for service lap 1min auxiliary reservoir pressure; Δ P
zfor turn-offing the graduated release valve on connecting pipe between checking cylinder and intermediate, the pressure change amount of checking cylinder while making auxiliary reservoir not mend wind to checking cylinder; The volumetric ratio of auxiliary reservoir and checking cylinder is designated as
:
Based on experience value, the volumetric ratio of auxiliary reservoir and checking cylinder
1. the substitution formula, obtains:
Δ P
z=6.25 Δ P
fformula 2.
Auxiliary reservoir pressure change amount Δ P
fmeasured by the auxiliary reservoir pressure detecting instrument when doing single car test, thereby calculate checking cylinder leak volume Δ P
z, realize the measurement of measurement passenger vehicle checking cylinder leak volume of the present invention.
2. the measuring method of passenger vehicle checking cylinder leak volume according to claim 1, it is characterized in that, described single car test instrument (2) provides wind regime for whole test, and carry out whole test, externally by brake pipe (3), connect brake pipe, connect total wind regime by wind regime pipe (1), single car testing device (2) is realized time unification with auxiliary reservoir pressure detecting instrument (4) and brake-cylinder pressure detector (5), unified error≤10ms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103746512A CN103439068A (en) | 2013-08-23 | 2013-08-23 | Method for measuring leakage amount of brake cylinder of passenger car |
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|---|---|---|---|
| CN2013103746512A CN103439068A (en) | 2013-08-23 | 2013-08-23 | Method for measuring leakage amount of brake cylinder of passenger car |
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| CN2013103746512A Pending CN103439068A (en) | 2013-08-23 | 2013-08-23 | Method for measuring leakage amount of brake cylinder of passenger car |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478389A (en) * | 2017-09-27 | 2017-12-15 | 上海全路通铁道装备有限公司 | A kind of train auxiliary reservoir exempts to tear pressure tester and its application method open |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6094977A (en) * | 1998-09-23 | 2000-08-01 | New York Air Brake Corporation | Brake cylinder leakage test method and device |
| CN201287714Y (en) * | 2008-11-05 | 2009-08-12 | 北京高铁三瑞电子技术有限公司 | Train brake monitoring device |
| CN101813564A (en) * | 2010-03-09 | 2010-08-25 | 上海大学 | Automation testing platform control air circuit system of subway brake unit |
| DE102009045714A1 (en) * | 2009-04-28 | 2010-11-04 | Continental Teves Ag & Co. Ohg | Slip-controlled hydraulic vehicle brake system |
| CN102180159A (en) * | 2011-04-13 | 2011-09-14 | 中国铁道科学研究院机车车辆研究所 | Railway wagon brake control system and test method thereof |
| CN102849060A (en) * | 2012-09-25 | 2013-01-02 | 四川制动科技股份有限公司 | State detection device for brake cylinder of electric control type railway vehicle |
-
2013
- 2013-08-23 CN CN2013103746512A patent/CN103439068A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6094977A (en) * | 1998-09-23 | 2000-08-01 | New York Air Brake Corporation | Brake cylinder leakage test method and device |
| CN201287714Y (en) * | 2008-11-05 | 2009-08-12 | 北京高铁三瑞电子技术有限公司 | Train brake monitoring device |
| DE102009045714A1 (en) * | 2009-04-28 | 2010-11-04 | Continental Teves Ag & Co. Ohg | Slip-controlled hydraulic vehicle brake system |
| CN101813564A (en) * | 2010-03-09 | 2010-08-25 | 上海大学 | Automation testing platform control air circuit system of subway brake unit |
| CN102180159A (en) * | 2011-04-13 | 2011-09-14 | 中国铁道科学研究院机车车辆研究所 | Railway wagon brake control system and test method thereof |
| CN102849060A (en) * | 2012-09-25 | 2013-01-02 | 四川制动科技股份有限公司 | State detection device for brake cylinder of electric control type railway vehicle |
Non-Patent Citations (1)
| Title |
|---|
| 西南交通大学机械系: "《高等学校试用教材 制动》", 31 January 1981 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478389A (en) * | 2017-09-27 | 2017-12-15 | 上海全路通铁道装备有限公司 | A kind of train auxiliary reservoir exempts to tear pressure tester and its application method open |
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Application publication date: 20131211 |