CN203713901U - Braking system of freight wagon - Google Patents

Braking system of freight wagon Download PDF

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Publication number
CN203713901U
CN203713901U CN201420004143.5U CN201420004143U CN203713901U CN 203713901 U CN203713901 U CN 203713901U CN 201420004143 U CN201420004143 U CN 201420004143U CN 203713901 U CN203713901 U CN 203713901U
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CN
China
Prior art keywords
valve
piston
communicated
side cavity
cylinder
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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 - Lifetime
Application number
CN201420004143.5U
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Chinese (zh)
Inventor
徐毅
陆正涛
刘严超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRRC Qiqihar Rolling Stock Co Ltd
Original Assignee
Qiqihar Railway Rolling Stock Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority to CN201420004143.5U priority Critical patent/CN203713901U/en
Application granted granted Critical
Publication of CN203713901U publication Critical patent/CN203713901U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a braking system of a freight wagon. The braking system comprises a train pipe, a control valve and a brake cylinder, and further comprises a working cylinder and an air storage cylinder; the control valve further comprises a two-pressure direct action type valve and a relay valve, wherein the two-pressure direct action type valve comprises a first piston, a first side cavity of the first piston is communicated with the train pipe, a second side cavity of the first piston is communicated with a working cylinder, and the second side cavity is further provided with a first channel which leads to the outer part of the second side cavity and the first channel is connected or broken along with the reciprocating motion of the first piston; the relay valve comprises a second valve body and a second piston inside the relay valve, the second valve body is provided with an air inlet channel communicated with the air storage cylinder and at least one charging channel communicated with the braking cylinder, a first side volume cavity of the second piston is communicated with the charging channel, a second side volume cavity of the second piston is communicated with a first channel, and the charging channel is communicated or broken along with the reciprocating motion of the second piston. According to the braking system, two or more brake cylinders can be easily and conveniently controlled by one control valve, so that the system is better in universality.

Description

A kind of rail wagon brake system
Technical field
The utility model relates to rolling stock technical field, relates in particular to a kind of rail wagon brake system.
Background technology
Rail wagon brake system is an important component part in vehicle structure, and locomotive, by the variation of pressure air in vehicle train pipe, is controlled motor vehicle braking system and produced braking and mitigation, makes Train Stopping or speed governing.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation of rail wagon brake system in prior art, and Fig. 2 is the fundamental diagram of control cock in Fig. 1; Briefly introduce the principle of work of this brake system and the defect of existence thereof below.
As shown in Figure 1, in prior art rail wagon brake system comprise train pipe 1 ', control cock 2 ', brake cylinder 3 ', auxiliary reservoir 4 ', step-down reservoir 5 ', transducer valve 6 ', limiting valve 7 ' and each parts between connecting line.As shown in Figure 2, this control cock 2 ' be two pressure direct acting type control cock, comprise valve body 21 ', piston 22 ', piston 22 ' the first side cavity 23 ' connection train pipe 1 ', the second side cavity 24 ' connection auxiliary reservoir 4 ', the second side cavity 24 ' be also provided be communicated with brake cylinder 3 ' passage 25 '.Main by train pipe 1 ' and auxiliary reservoir 4 ' pressure reduction control control cock 2 ' generations brake and the action such as alleviation.
In the time that vehicle train pipe 1 ' internal pressure reduces, auxiliary reservoir 4 ' internal pressure is greater than train pipe 1 ' internal pressure, piston 22 ' move up under the two differential pressure action, passage 25 ' open, auxiliary reservoir 4 ' interior to brake cylinder 3 ' interior charged pressure air, promote brake cylinder 3 ' piston and stretch out, and drive a set of leverage to produce brake action; In the time that vehicle train pipe 1 ' internal pressure increases, auxiliary reservoir 4 ' internal pressure is less than train pipe 1 ' internal pressure, piston 22 ' move down under the two differential pressure action, passage 25 ' disconnection, brake system produces mitigation, emptying brake cylinder 3 ' pressure air, brake cylinder 3 ' piston-retraction, drives the leverage being attached thereto to produce mitigation.
In addition, the limiting valve 7 of above-mentioned brake system ', transducer valve 6 ' and the empty and load brake equipment of 5 ' tri-parts composition motor vehicle braking systems of step-down reservoir, the braking force that act as adjusting vehicle of empty and load brake equipment, under loaded vehicle operating mode, export large braking force, ensure that vehicle stops fast, under empty wagons operating mode, export little braking force, to prevent wheel of vehicle locking, flat wheel.Wherein transducer valve 6 ' Main Function be to detect the loading condition of vehicle, limiting valve 7 ' Main Function is according to the loading state of vehicle of transducer valve 6 ' detection, adjust brake cylinder 3 ' pressure under different Loading conditions, step-down reservoir 5 ' act as brake cylinder 3 ' interior unnecessary pressure air of shunting and store under empty wagons or little load-carrying operating mode, reduce brake cylinder 3 ' pressure.
The limitation of said system be auxiliary reservoir 4 ' both charge control valves 2 ' inside and train pipe 1 ' equilibrium of pressure, be responsible for again to brake cylinder 3 ' interior inflation, therefore a set of empty and load brake equipment of control cock 2 ' can only control and brake cylinder 3 ', if control many covers empty and load devices and brake cylinder 3 ', need to change control cock 2 ' inner structure, again mate auxiliary reservoir 4 ', step-down reservoir 5 ' and the size of brake cylinder 3 ' volume, the system kind of causing is infinitely many, and Problem is caused to very burden.And loading state of vehicle needs unanimously, now, if vehicle has empty wagons to have loaded vehicle, can cause the disorder of auxiliary reservoir 4 ' internal pressure air, again because auxiliary reservoir 4 ' pressure participates in controlling, so or cause system control to lose efficacy, cannot obtain accurate brake cylinder 3 ' pressure.
In view of this, urgently for above-mentioned technical matters, rail wagon brake system of the prior art is done to further optimal design, realize a control cock control two and overlap and overlap more brake cylinder, simplied system structure, cost-saving.
Utility model content
The purpose of this utility model is for providing a kind of rail wagon brake system, this brake system can utilize a control cock to control simply, easily two covers and more cover brake cylinders, realizes easily the braking control to many cars, has good commonality, simple in structure, compact, cost is less.
For solving the problems of the technologies described above, the utility model provides a kind of rail wagon brake system, comprises train pipe, control cock and brake cylinder, also comprises clutch release slave cylinder and storage reservoir,
Described control cock comprises two pressure direct acting type valve and relay valves, described two pressure direct acting type valves comprise first piston, the first side cavity of first piston is communicated with train pipe, the second side cavity is communicated with clutch release slave cylinder, and the second side cavity is also provided with leads to outside first passage, described first passage is communicated with or disconnects with the crank motion of described first piston;
Described relay valve comprises the second valve body and the second inner piston thereof, described valve body is provided with and the intake channel that stores up reservoir and be communicated with, with at least one gas fill port being communicated with brake cylinder, the first chamber volume of described the second piston is communicated with gas fill port, the second chamber volume is communicated with first passage, and described gas fill port is communicated with or disconnects with the crank motion of described the second piston with intake channel.
Preferably, the number of the gas fill port of described relay valve is at least two.
Preferably, also comprise transducer valve, described transducer valve is connected between described control cock and described brake cylinder.
Preferably, also comprise limiting valve, described limiting valve is connected between described transducer valve and described brake cylinder.
Preferably, described transducer valve and described pressure regulating valve are integrated in one becomes bare weight valve.
Preferably, the bare weight valve that described bare weight valve is electrodeless adjusting.
Adopt said structure, control is two pressure direct acting type valves and relay valve two parts composition, clutch release slave cylinder is responsible for the equilibrium of pressure of direct acting type valve, is not participated in the action control of control cock, storage reservoir only as wind regime, be responsible for to charged pressure air in brake cylinder, the size of delivery pressure determines after by work reservoir volume and direct acting type valve internal chamber volume pressure balance, and the volume of work reservoir own is irrelevant.Therefore, as long as the pressure of storage reservoir is enough large, two or more gas fill port can be set in relay valve, connect two cover or more cover brake cylinders, and then realize two of control cock controls or more railway trucks, or realize a control cock control vehicle front, a different railway truck of rear vehicle end loaded weight.Above-mentioned brake system has simple in structure, compact, the good advantage of commonality, and the cost of having saved brake system drops into.
Brief description of the drawings
Fig. 1 is the structural representation of rail wagon brake system in prior art;
Fig. 2 is the fundamental diagram of control cock in Fig. 1;
The structural representation of a kind of detailed description of the invention that Fig. 3 is rail wagon brake system that the utility model provides;
Fig. 4 is the structural representation of control cock in Fig. 3.
In Fig. 1, Fig. 2:
Train pipe 1 '; Control cock 2 '; Brake cylinder 3 '; Auxiliary reservoir 4 '; Step-down reservoir 5 '; Transducer valve 6 '; Limiting valve 7 ';
Valve body 21 '; Piston 22 '; The first side cavity 23 '; The second side cavity 24 '; Passage 25 ';
In Fig. 3, Fig. 4:
Train pipe 1; Control cock 2; Brake cylinder 3; Clutch release slave cylinder 4; Storage reservoir 5; Bare weight valve 6;
Direct acting type valve 21; The first valve body 211; First piston 212; The first side cavity 213; The second side cavity 214; First passage 215;
Relay valve 22; The second valve body 221; The second piston 222; The first chamber volume 223; The second chamber volume 224; Intake channel 225; Gas fill port 226.
Detailed description of the invention
Core of the present utility model is for providing a kind of rail wagon brake system, it,, by a control cock two cover and more cover brake cylinders in parallel, can be realized easily to many non-interfering braking controls of car, greatly strengthens its commonality, simple in structure, compact, cost is less.
In order to make those skilled in the art understand better the technical solution of the utility model, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 3 and Fig. 4, the structural representation of a kind of detailed description of the invention that Fig. 3 is rail wagon brake system that the utility model provides; Fig. 4 is the structural representation of control cock in Fig. 3.
In a kind of detailed description of the invention, as shown in Figure 3 and Figure 4, the utility model provides a kind of rail wagon brake system, and this brake system comprises train pipe 1, control cock 2, brake cylinder 3, clutch release slave cylinder 4 and storage reservoir 5.
Wherein, control cock 2 comprises two pressure direct acting type valve 21 and relay valves 22, two pressure direct acting type valves 21 comprise first piston 212, the first side cavity 213 of first piston 212 is communicated with train pipe 1, the second side cavity 214 is communicated with clutch release slave cylinder 4, and the second side cavity 214 is also provided with leads to outside first passage 215, first passage 215 moves and is communicated with, moves and disconnect to its second side cavity 214 with first piston 212 to its first side cavity 213 with first piston 212.Relay valve 22 comprises the second valve body 221 and the second inner piston 222 thereof, valve body is provided with and the intake channel 225 that stores up reservoir 5 and be communicated with, with at least one gas fill port 226 being communicated with brake cylinder 3, the first chamber volume 223 of the second piston 222 is communicated with gas fill port 226, the second chamber volume 224 is communicated with first passage 215, and gas fill port 226 and intake channel 225 move and are communicated with, move and disconnect to the second chamber volume 224 with the second piston 222 to the first chamber volume 223 with the second piston 222.
Introduce in detail the working process of this system below:
In the time that vehicle train pipe 1 internal pressure reduces, clutch release slave cylinder 4 internal pressures are greater than train pipe 1 internal pressure, first piston 212 moves (as shown in Figure 3 to the first side cavity 213 under the two differential pressure action, first piston 212 is positioned at top control position), first passage 215 is opened, clutch release slave cylinder 4 is the second chamber volume 224 charged pressure air to relay valve 22 by first passage 215, the pressure of the second chamber volume 224 increases, the second piston 222 that promotes relay valve 22 moves (as shown in Figure 3 to the first chamber volume 223, the second piston 222 is positioned at top control position), gas fill port 226 is communicated with intake channel 225, storage reservoir 5 is to the interior charged pressure air of brake cylinder 3, promoting brake cylinder 3 pistons stretches out, and drive a set of leverage to produce brake action.Along with brake cylinder 3 internal pressures increase gradually, the pressure of the first chamber volume 223 being communicated with filling channel also increases gradually, when the pressure of the first chamber volume 223 increases to when identical with the pressure of the second chamber volume 224, the second piston 222 moves under the first chamber volume 223 pressure-actings, and filling channel and free air diffuser disconnect.
In the time that vehicle train pipe 1 internal pressure increases, the working process of above-mentioned brake system is contrary, does not repeat them here.
As can be seen here, adopt said structure, control is two pressure direct acting type valves 21 and relay valve 22 two parts compositions, clutch release slave cylinder 4 is responsible for the equilibrium of pressure of direct acting type valves 21, action control with control cock 2,5 of reservoirs of storage as wind regime, be responsible for to the interior charged pressure air of brake cylinder 3, the size of delivery pressure determines after by clutch release slave cylinder 4 volumes and direct acting type valve 21 internal chamber volume pressure balances, irrelevant with the volume of storage reservoir 5 own.Therefore, as long as the pressure of storage reservoir 5 is enough large, two or more gas fill port 226 can be set in relay valve 22, connect two cover or more cover brake cylinders 3, and then realize a control cock 2 and control two or more railway trucks, or realize a control cock 2 and control vehicle front, a different railway truck of rear vehicle end loaded weight.And above-mentioned brake system has simple in structure, compact, the good advantage of commonality, the cost of having saved brake system drops into.
In concrete scheme, the number of the gas fill port 226 of above-mentioned relay valve 22 is at least two, for example two, three or more, can be according to actual needs and the size reasonable setting of storage reservoir 5.
In another kind of detailed description of the invention, above-mentioned rail wagon brake system can also comprise transducer valve, and transducer valve is connected between control cock 2 and brake cylinder 3.
Adopt this structure, transducer valve can detect the loading condition of vehicle, is convenient to brake system and determines according to the loading situation of vehicle the size of required brake-pressure.
Further, in scheme, above-mentioned rail wagon brake system can also comprise limiting valve, and limiting valve is connected between transducer valve and brake cylinder 3.
Adopt this structure, limiting valve, for according to the loading state of vehicle of transducer valve detection, is adjusted the pressure of brake cylinder 3 under different Loading conditions, the less pressure of exporting while avoiding heavy duty, or when underloading, the larger pressure of output, causes the wild effects such as train locking.
In scheme, above-mentioned transducer valve and pressure regulating valve are integrated in one becomes bare weight valve 6 more specifically.Adopt the two integrated structure, can make the structure of brake system simpler, compact.
Above-mentioned bare weight valve 6 can be divided into electrodeless adjusting and have level to regulate two kinds, wherein electrodeless adjusting can be adjusted the size that need to export braking force by the current load condition of vehicle at any time, this real-time detection, in real time the bare weight valve 6 that regulates more can gradual braking, to ensure railway truck riding stability.Said system can specifically adopt the disclosed bare weight valve 6 of ZL201020552816.2, and because this patent is public technology, structure and principle of work at this to this bare weight valve 6 repeat no more.
Certainly, above-mentioned bare weight valve 6 also can adopt the utmost point to regulate, and presets unloaded and two kinds of operating modes of heavy duty, according to the load condition detecting, and two kinds of the required braking force of output no-load or heavily loaded required braking forces.
Above a kind of rail wagon brake system provided by the utility model is described in detail.Applied specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.

Claims (6)

1. a rail wagon brake system, comprises train pipe (1), control cock (2) and brake cylinder (3), it is characterized in that, also comprises clutch release slave cylinder (4) and storage reservoir (5),
Control cock (2) comprises two pressure direct acting type valves (21) and relay valve (22), two pressure direct acting type valves (21) comprise the first valve body (211) and inner first piston (212) thereof, first side cavity (213) of first piston (212) is communicated with train pipe (1), the second side cavity (214) is communicated with clutch release slave cylinder (4), and the second side cavity (214) is also provided with leads to outside first passage (215), first passage (215) is communicated with to its first side cavity (213) motion with first piston (212), disconnect to its second side cavity (214) motion with first piston (212),
Relay valve (22) comprises the second valve body (221) and inner the second piston (222) thereof, valve body is provided with and the intake channel (225) that stores up reservoir (5) and be communicated with, with at least one gas fill port (226) being communicated with brake cylinder (3), first chamber volume (223) of the second piston (222) is communicated with gas fill port (226), the second chamber volume (224) is communicated with first passage (215), gas fill port (226) is communicated with to the first chamber volume (223) motion with the second piston (222) with intake channel (225), disconnect to the second chamber volume (224) motion with the second piston (222).
2. rail wagon brake system according to claim 1, is characterized in that, the number of the gas fill port (226) of described relay valve (22) is at least two.
3. rail wagon brake system according to claim 2, is characterized in that, also comprises transducer valve, and described transducer valve is connected between described control cock (2) and described brake cylinder (3).
4. rail wagon brake system according to claim 3, is characterized in that, also comprises limiting valve, and described limiting valve is connected between described transducer valve and described brake cylinder (3).
5. rail wagon brake system according to claim 4, is characterized in that, described transducer valve and described pressure regulating valve are integrated in one becomes bare weight valve (6).
6. rail wagon brake system according to claim 5, is characterized in that, the bare weight valve that described bare weight valve (6) is electrodeless adjusting.
CN201420004143.5U 2014-01-03 2014-01-03 Braking system of freight wagon Expired - Lifetime CN203713901U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420004143.5U CN203713901U (en) 2014-01-03 2014-01-03 Braking system of freight wagon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420004143.5U CN203713901U (en) 2014-01-03 2014-01-03 Braking system of freight wagon

Publications (1)

Publication Number Publication Date
CN203713901U true CN203713901U (en) 2014-07-16

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Application Number Title Priority Date Filing Date
CN201420004143.5U Expired - Lifetime CN203713901U (en) 2014-01-03 2014-01-03 Braking system of freight wagon

Country Status (1)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104973035A (en) * 2015-06-12 2015-10-14 齐齐哈尔轨道交通装备有限责任公司 Brake control system of vehicle
CN106585660A (en) * 2016-12-21 2017-04-26 中国铁道科学研究院 Automatic regulating apparatus for empty and heavy vehicle used for air braking system of fast lorry
CN109131293A (en) * 2018-09-14 2019-01-04 中车眉山车辆有限公司 A kind of braking system and its braking method of the railway freight-car more vehicle brakings of single control valve
CN110422156A (en) * 2019-08-27 2019-11-08 天津铁路信号有限责任公司 Multistage manometer regulator and its application
CN113525326A (en) * 2021-06-30 2021-10-22 眉山中车制动科技股份有限公司 Three-pressure distribution valve

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104973035A (en) * 2015-06-12 2015-10-14 齐齐哈尔轨道交通装备有限责任公司 Brake control system of vehicle
CN104973035B (en) * 2015-06-12 2017-10-24 中车齐齐哈尔车辆有限公司 A kind of braking control system of vehicle
CN106585660A (en) * 2016-12-21 2017-04-26 中国铁道科学研究院 Automatic regulating apparatus for empty and heavy vehicle used for air braking system of fast lorry
CN109131293A (en) * 2018-09-14 2019-01-04 中车眉山车辆有限公司 A kind of braking system and its braking method of the railway freight-car more vehicle brakings of single control valve
CN110422156A (en) * 2019-08-27 2019-11-08 天津铁路信号有限责任公司 Multistage manometer regulator and its application
CN113525326A (en) * 2021-06-30 2021-10-22 眉山中车制动科技股份有限公司 Three-pressure distribution valve
CN113525326B (en) * 2021-06-30 2022-06-28 眉山中车制动科技股份有限公司 Three-pressure distribution valve

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: 161002 Qigihar City, Heilongjiang province Tiefeng District Plant Road No. 36

Patentee after: CRRC QIQIHAR ROLLING STOCK Co.,Ltd.

Address before: 161002 Qigihar City, Heilongjiang province Tiefeng District Plant Road No. 36

Patentee before: QIQIHAR RAILWAY ROLLING STOCK Co.,Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20140716