CN104309602A - Relay valve with empty and loaded vehicle brake cylinder pressure adjusting function - Google Patents
Relay valve with empty and loaded vehicle brake cylinder pressure adjusting function Download PDFInfo
- Publication number
- CN104309602A CN104309602A CN201410547519.1A CN201410547519A CN104309602A CN 104309602 A CN104309602 A CN 104309602A CN 201410547519 A CN201410547519 A CN 201410547519A CN 104309602 A CN104309602 A CN 104309602A
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- China
- Prior art keywords
- empty
- composition
- valve
- exhaust valve
- equalizing lever
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/18—Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2250/00—Monitoring, detecting, estimating vehicle conditions
- B60T2250/02—Vehicle mass
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a relay valve with an empty and loaded vehicle brake cylinder pressure adjusting function. The relay valve comprises a valve body assembly, wherein a supply valve, an exhaust valve, a balance piston assembly, an empty and loaded vehicle piston assembly, a top rod, a pull rod and a jumping spring are arranged in the valve body assembly. The relay valve disclosed by the invention controls an auxiliary reservoir to inflate/deflate a brake cylinder according to the pressure change of a volume chamber, so that a train is braked, pressurized and released; the relay valve has the empty and loaded vehicle brake pressure adjusting function, so that the brake cylinder pressure can be controlled according to the load weight tonnage of a vehicle, different brake cylinder pressures are supplied according to the load weights of the vehicle, and the reliability of the braking is ensured.
Description
Technical field
The present invention relates to a kind of relay valve with empty and load brake-cylinder pressure adjustment function.
Background technology
In Pneumatic brake systems in existing vehicle, control for brake is carried out according to existing relay valve, there will be no matter vehicle is no-load run or heavy service, the pressure of its brake cylinder is all consistent situation, if when can cause vehicle no-load run according to loaded vehicle design, braking ratio is excessive, slides and flat wheel; And according to empty wagons design, then braking ratio wretched insufficiency when can cause vehicle heavy service, makes braking unreliable.
Summary of the invention
The object of the invention is to: for above-mentioned Problems existing, a kind of relay valve with empty and load brake-cylinder pressure adjustment function that can control brake-cylinder pressure size according to vehicle load tonnage size is provided.
Technical scheme of the present invention is achieved in that a kind of relay valve with empty and load brake-cylinder pressure adjustment function, comprise valve body composition, it is characterized in that: in described valve body composition, be provided with feed cock, exhaust valve, equalizing lever composition and empty and load piston composition, described feed cock, exhaust valve, equalizing lever composition and empty and load piston composition are divided into relatively independent multiple cavitys in being formed by valve body, on the upside of described feed cock, cavity is communicated with auxiliary reservoir, described feed cock is communicated with brake cylinder with the cavity formed between exhaust valve, the open and close controlling auxiliary reservoir of described feed cock and the break-make of brake cylinder, the open and close controlling brake cylinder of described exhaust valve and the break-make of exhaust outlet, the cavity that described exhaust valve is formed between forming with equalizing lever is communicated with brake cylinder by pipeline, the cavity formed between described equalizing lever composition forms with empty and load piston is communicated with chamber volume, described empty and load piston composition downside cavity and empty and load signal communication, push rod is provided with in described valve body composition, described push rod one end forms with equalizing lever and is connected, its other end is resisted against the piston end surface of feed cock through exhaust valve, the jacking block corresponding with the piston of exhaust valve is provided with in the middle part of described push rod, described push rod diverse location is in its axial direction respectively used to the opening and closing controlling feed cock and exhaust valve, described empty and load piston composition is provided with pull bar, described pull bar afterbody forms with empty and load piston and is connected, its head is arranged in the equalizing lever pole cap of equalizing lever composition, gap is left between the head of described pull bar and equalizing lever pole cap, described empty and load piston composition below is provided with inshot spring.
The relay valve with empty and load brake-cylinder pressure adjustment function of the present invention, valve body composition described in it comprises blind nut, body composition, middle body and lower cover, described blind nut and body form threaded one end and are connected, the described body composition other end is connected with middle body one end, the described middle body other end is connected with lower cover, described feed cock and exhaust valve are arranged in body composition, and described equalizing lever composition and empty and load piston composition are arranged in middle body, and described inshot spring is arranged in the spring perch of lower cover.
The present invention controls auxiliary reservoir to brake cylinder charge, exhaust according to the change of chamber volume pressure, thus complete the braking of train, pressurize and alleviation, and there is empty and load brake-pressure regulatory function, the size of brake-cylinder pressure can be controlled according to vehicle load tonnage size, realize providing different brake-cylinder pressures according to vehicle load, ensure that braking is reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of the present invention at loaded vehicle retarder location.
Fig. 3 is the structural representation of the present invention at empty wagons retarder location.
Fig. 4 is that the present invention is at the structural representation alleviating position.
Fig. 5 is the structural representation of the present invention in pressurize position.
Mark in figure: 1 is feed cock, and 2 is exhaust valve, 3 is equalizing lever composition, and 4 is empty and load piston composition, 5 is auxiliary reservoir, and 6 is brake cylinder, and 7 is exhaust outlet, 8 is chamber volume, and 9 is empty and load signal, and 10 is push rod, 11 is jacking block, and 12 is pull bar, and 13 is equalizing lever pole cap, 14 is gap, and 15 is inshot spring, and 16 is blind nut, 17 is body composition, and 18 is middle body, and 19 is lower cover.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, a kind of relay valve with empty and load brake-cylinder pressure adjustment function, comprise valve body composition, feed cock 1 is provided with in described valve body composition, exhaust valve 2, equalizing lever composition 3 and empty and load piston composition 4, described valve body composition comprises blind nut 16, body composition 17, middle body 18 and lower cover 19, described blind nut 16 and body form 17 threaded one ends and are connected, described body forms 17 other ends and is connected with middle body 18 one end, described middle body 18 other end is connected with lower cover 19, described feed cock 1 and exhaust valve 2 are arranged in body composition 17, described equalizing lever composition 3 and empty and load piston composition 4 are arranged in middle body 18.
Wherein, described feed cock 1, exhaust valve 2, equalizing lever composition 3 and empty and load piston composition 4 are divided into relatively independent multiple cavitys in being formed by valve body, on the upside of described feed cock 1, cavity is communicated with auxiliary reservoir 5, described feed cock 1 is communicated with brake cylinder 6 with the cavity formed between exhaust valve 2, the open and close controlling auxiliary reservoir 5 of described feed cock 1 and the break-make of brake cylinder 6, the open and close controlling brake cylinder 6 of described exhaust valve 2 and the break-make of exhaust outlet 7, described exhaust valve 2 and equalizing lever are formed the cavity formed between 3 and are communicated with brake cylinder 6 by pipeline, described equalizing lever composition 3 forms with empty and load piston the cavity formed between 4 and is communicated with chamber volume 8, on the downside of described empty and load piston composition 4, cavity is communicated with empty and load signal 9, push rod 10 is provided with in described valve body composition, described push rod 10 one end forms 3 with equalizing lever and is connected, its other end is resisted against the piston end surface of feed cock 1 through exhaust valve 2, the jacking block 11 corresponding with the piston of exhaust valve 2 is provided with in the middle part of described push rod 10, described push rod 10 diverse location is in its axial direction respectively used to the opening and closing controlling feed cock 1 and exhaust valve 2, described empty and load piston composition 4 is provided with pull bar 12, described pull bar 12 afterbody forms 4 with empty and load piston and is connected, its head is arranged in the equalizing lever pole cap 13 of equalizing lever composition 3, gap 14 is left between the head of described pull bar 12 and equalizing lever pole cap 13, inshot spring 15 is provided with below described empty and load piston composition 4, described inshot spring 15 is arranged in the spring perch of lower cover 19.
As shown in Figure 2, for the present invention is at the schematic diagram of loaded vehicle retarder location.When train is in loaded position, from signal and the pressure air of empty and load, directly by empty and load piston composition jack-up, simultaneously owing to having gap between the head of pull bar and equalizing lever pole cap, therefore when chamber volume has pressure air, equalizing lever is pushed the constraint moving not tension member, namely empty and load piston composition does not provide constraints to it in the course of action of equalizing lever composition, and equalizing lever drive push rod moves and backs down feed cock, auxiliary reservoir pressure air is made to fill wind through feed cock to brake cylinder, brake cylinder and equalizing lever are communicated with on the upside of forming simultaneously, exhaust valve is in closed condition, along with the increase of brake-cylinder pressure, balance the pressure of equalizing lever composition downside chamber volume gradually, when brake-cylinder pressure co-content chamber pressure is equal, feed cock is closed, now brake-cylinder pressure is loaded vehicle pressure.
As shown in Figure 3, for the present invention is at the schematic diagram of empty wagons retarder location.When train is in empty parking space, when chamber volume pressure air enters equalizing lever composition downside, first promotes equalizing lever and move up, drive push rod to back down feed cock, make auxiliary reservoir pressure air fill wind through feed cock to brake cylinder; When chamber volume pressure continues to rise, chamber volume pressure while making equalizing lever moves again by empty and load piston compression inshot spring, empty and load piston is moved down, now empty and load piston is by pull bar participation role, equalizing lever moves and is subject to pining down of empty wagons car piston, now equalizing lever composition downside pressure has been cancelled a part, when therefore reaching balance, brake-cylinder pressure comparatively loaded position is low, thus achieves the requirement obtaining less braking force when empty parking space.
As shown in Figure 4, for the present invention is at the schematic diagram alleviating position.When chamber volume pressure reduces, equalizing lever moves down under the effect of upside brake-cylinder pressure, exhaust valve is backed down by the jacking block in the middle part of push rod, brake-cylinder pressure air through exhaust outlet discharged to air, communicate because brake cylinder and equalizing lever form upside, the air pressure of equalizing lever composition upside also decreases, and is the lower lateral pressure of balance equalizing lever composition, equalizing lever gradually on move, until exhaust valve close.
As shown in Figure 5, for the present invention is at the schematic diagram of pressurize position.When the chamber volume pressure of brake-cylinder pressure and the downside of equalizing lever composition upside is close to time consistent, equalizing lever mediates balance position, and feed cock and exhaust valve be equal close port under its action of the spring, and brake cylinder stops inflating or being vented, in packing state.If now the equalizing lever composition chamber volume pressure of upper and lower sides and brake-cylinder pressure occur difference of pressure again, feed cock or exhaust valve are unlocked again, and brake cylinder fills wind or air draft again, until brake-cylinder pressure and chamber volume pressure are close to consistent, and pressurize again.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. one kind has the relay valve of empty and load brake-cylinder pressure adjustment function, comprise valve body composition, it is characterized in that: in described valve body composition, be provided with feed cock (1), exhaust valve (2), equalizing lever composition (3) and empty and load piston composition (4), described feed cock (1), exhaust valve (2), equalizing lever composition (3) and empty and load piston composition (4) are divided into relatively independent multiple cavitys in being formed by valve body, described feed cock (1) upside cavity is communicated with auxiliary reservoir (5), the cavity formed between described feed cock (1) with exhaust valve (2) is communicated with brake cylinder (6), the open and close controlling auxiliary reservoir (5) of described feed cock (1) and the break-make of brake cylinder (6), the open and close controlling brake cylinder (6) of described exhaust valve (2) and the break-make of exhaust outlet (7), described exhaust valve (2) is formed the cavity formed between (3) and is communicated with brake cylinder (6) by pipeline with equalizing lever, described equalizing lever composition (3) forms the cavity formed between (4) and is communicated with chamber volume (8) with empty and load piston, described empty and load piston composition (4) downside cavity is communicated with empty and load signal (9), push rod (10) is provided with in described valve body composition, described push rod (10) one end forms (3) and is connected with equalizing lever, its other end is resisted against the piston end surface of feed cock (1) through exhaust valve (2), described push rod (10) middle part is provided with the jacking block (11) corresponding with the piston of exhaust valve (2), described push rod (10) diverse location is in its axial direction respectively used to the opening and closing controlling feed cock (1) and exhaust valve (2), described empty and load piston composition (4) is provided with pull bar (12), described pull bar (12) afterbody forms (4) and is connected with empty and load piston, its head is arranged in the equalizing lever pole cap (13) of equalizing lever composition (3), gap (14) is left between the head of described pull bar (12) and equalizing lever pole cap (13), described empty and load piston composition (4) below is provided with inshot spring (15).
2. the relay valve with empty and load brake-cylinder pressure adjustment function according to claim 1, it is characterized in that: described valve body composition comprises blind nut (16), body composition (17), middle body (18) and lower cover (19), described blind nut (16) forms (17) threaded one end and is connected with body, described body composition (17) other end is connected with middle body (18) one end, described middle body (18) other end is connected with lower cover (19), described feed cock (1) and exhaust valve (2) are arranged in body composition (17), described equalizing lever composition (3) and empty and load piston composition (4) are arranged in middle body (18), described inshot spring (15) is arranged in the spring perch of lower cover (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410547519.1A CN104309602B (en) | 2014-10-16 | 2014-10-16 | A kind of relay valve with empty and load brake-cylinder pressure adjustment function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410547519.1A CN104309602B (en) | 2014-10-16 | 2014-10-16 | A kind of relay valve with empty and load brake-cylinder pressure adjustment function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104309602A true CN104309602A (en) | 2015-01-28 |
| CN104309602B CN104309602B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410547519.1A Active CN104309602B (en) | 2014-10-16 | 2014-10-16 | A kind of relay valve with empty and load brake-cylinder pressure adjustment function |
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| CN (1) | CN104309602B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106347340A (en) * | 2016-11-16 | 2017-01-25 | 眉山中车制动科技股份有限公司 | Distribution valve used for controlling conversion of air inflation release position and brake position in volume room |
| CN106740786A (en) * | 2016-12-29 | 2017-05-31 | 华伍轨道交通装备（上海）有限责任公司 | Emergency braking system |
| 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 |
| CN111762142A (en) * | 2020-07-09 | 2020-10-13 | 眉山中车制动科技股份有限公司 | Relay valve capable of outputting two pressures |
| CN113911093A (en) * | 2021-10-28 | 2022-01-11 | 眉山中车制动科技股份有限公司 | Relay valve jumping mechanism |
| CN115179914A (en) * | 2022-07-15 | 2022-10-14 | 眉山中车制动科技股份有限公司 | Two-stage adjusting device and adjusting method for braking empty and heavy railway vehicles |
| CN115214579A (en) * | 2022-07-15 | 2022-10-21 | 眉山中车制动科技股份有限公司 | Railway vehicle braking pressure limiting valve |
| CN116678649A (en) * | 2023-06-07 | 2023-09-01 | 眉山中车制动科技股份有限公司 | Air brake system of multi-system single-vehicle test platform of railway wagon |
| EP4230488A4 (en) * | 2021-10-28 | 2024-02-14 | Meishan CRRC Brake Science&Technologyco., Ltd | Relay valve |
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| CN201026869Y (en) * | 2006-12-31 | 2008-02-27 | 万安集团诸暨汽车制动***有限公司 | Air control load sensing valve assembly |
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| CN104085387A (en) * | 2014-07-11 | 2014-10-08 | 南京浦镇海泰制动设备有限公司 | Output-selectable empty and load adjusting valve |
| CN204136976U (en) * | 2014-10-16 | 2015-02-04 | 四川制动科技股份有限公司 | A kind of relay valve with empty and load brake-cylinder pressure adjustment function |
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2014
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Patent Citations (7)
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| CN201026869Y (en) * | 2006-12-31 | 2008-02-27 | 万安集团诸暨汽车制动***有限公司 | Air control load sensing valve assembly |
| CN102159433A (en) * | 2008-09-22 | 2011-08-17 | 纳博特斯克株式会社 | Load compensating valve and brake control device |
| EP2261095A2 (en) * | 2009-06-11 | 2010-12-15 | Dako-CZ, a.s. | Braking device for multiple wagon vehicles, such as railway trains, kinked characteristic valve and method |
| CN103192816A (en) * | 2013-04-23 | 2013-07-10 | 北京纵横机电技术开发公司 | Multichannel control pressure relay valve |
| CN203832478U (en) * | 2014-05-13 | 2014-09-17 | 四川制动科技股份有限公司 | Automatic railway vehicle empty and load adjustment valve of balance pivot type lever structure |
| CN104085387A (en) * | 2014-07-11 | 2014-10-08 | 南京浦镇海泰制动设备有限公司 | Output-selectable empty and load adjusting valve |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106347340A (en) * | 2016-11-16 | 2017-01-25 | 眉山中车制动科技股份有限公司 | Distribution valve used for controlling conversion of air inflation release position and brake position in volume room |
| CN106740786B (en) * | 2016-12-29 | 2023-05-26 | 华伍轨道交通装备（上海）有限责任公司 | Emergency braking system |
| CN106740786A (en) * | 2016-12-29 | 2017-05-31 | 华伍轨道交通装备（上海）有限责任公司 | Emergency braking system |
| 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 |
| CN111762142A (en) * | 2020-07-09 | 2020-10-13 | 眉山中车制动科技股份有限公司 | Relay valve capable of outputting two pressures |
| CN113911093A (en) * | 2021-10-28 | 2022-01-11 | 眉山中车制动科技股份有限公司 | Relay valve jumping mechanism |
| EP4230488A4 (en) * | 2021-10-28 | 2024-02-14 | Meishan CRRC Brake Science&Technologyco., Ltd | Relay valve |
| CN115214579A (en) * | 2022-07-15 | 2022-10-21 | 眉山中车制动科技股份有限公司 | Railway vehicle braking pressure limiting valve |
| CN115179914B (en) * | 2022-07-15 | 2023-07-07 | 眉山中车制动科技股份有限公司 | Two-stage adjusting device and adjusting method for railway vehicle braking empty and heavy vehicle |
| CN115214579B (en) * | 2022-07-15 | 2023-10-13 | 眉山中车制动科技股份有限公司 | Brake pressure limiting valve for railway vehicle |
| CN115179914A (en) * | 2022-07-15 | 2022-10-14 | 眉山中车制动科技股份有限公司 | Two-stage adjusting device and adjusting method for braking empty and heavy railway vehicles |
| CN116678649A (en) * | 2023-06-07 | 2023-09-01 | 眉山中车制动科技股份有限公司 | Air brake system of multi-system single-vehicle test platform of railway wagon |
| CN116678649B (en) * | 2023-06-07 | 2024-05-24 | 眉山中车制动科技股份有限公司 | Air brake system of multi-system single-vehicle test platform of railway wagon |
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| CN104309602B (en) | 2016-08-24 |
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Address after: Three road 620010 Meishan province Sichuan City Dongpo District of Meishan science and Technology Industrial Park No. 68 Applicant after: Meisha Zhongke Brake Technology Co., Ltd. Address before: Three road 620010 Meishan province Sichuan City Dongpo District of Meishan science and Technology Industrial Park No. 68 Applicant before: Sichuan Brake Science and Technology Co. Ltd. |
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