CN101439714B - Synchronous fast exhaust emergency relay valve - Google Patents
Synchronous fast exhaust emergency relay valve Download PDFInfo
- Publication number
- CN101439714B CN101439714B CN2007101568303A CN200710156830A CN101439714B CN 101439714 B CN101439714 B CN 101439714B CN 2007101568303 A CN2007101568303 A CN 2007101568303A CN 200710156830 A CN200710156830 A CN 200710156830A CN 101439714 B CN101439714 B CN 101439714B
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- control
- relay piston
- center shaft
- relay
- chamber
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Abstract
The invention discloses a synchronous fast-exhaust urgent relay valve, consisting of a shell of a relay valve, an upper cover and a lower cover. The shell is internally provided with a relay piston; an air inlet connector, an air reservoir connector, a vent cavity and an adjustment cavity are arranged on the shell; an air reservoir cavity component and a control cavity component are arranged on the relay piston; an operation connector and an operation cavity are arranged in the upper cover. The control cavity component consists of a central shaft and a control piston on the central shaft; a control valve base is arranged under the control piston; the top part of the central shaft is provided with a compression nut; a control valve base spring and a control piston spring are arranged on the control piston. An upper control exhaust hole and a lower control exhaust hole are arranged on the central shaft, are matched with an upper control valve and a lower control valve that are arranged on the central shaft, and control an air inlet cavity to be communicated with the vent cavity by an air providing cavity. A breathing hole is also arranged on the relay piston and is communicated with atmosphere; the vent cavity is connected with an air outlet connector; six air outlet connectors are arranged in the urgent relay valve of the invention. The method of the invention is suitable for brake of big automobiles and semi-trailers.
Description
Technical field
The present invention relates to a kind of RE valve, especially relate to a kind of synchronous fast exhaust emergency relay valve.
Background technology
RE valve is the secondary valve that belongs on the air braking vehicle brake system, is used to control the back axle braking of big automobile, superimposed trailer, handing-over car and the braking of trailer.Because its trailing wheel of above-mentioned vehicle is far away from headstock, if directly braked by the brake activation valve of front portion, pipeline is longer, and braking can obviously lag behind front-wheel.So these vehicles are all controlled the rear portion braking with RE valve or relay valve.Because they are connected to air tank separately, the pressurized air of braking rear portion car sedan-chair is directly supplied with by its air tank.Anterior needs a spot of pressurized air to control the valve of opening at rear portion, and this control air pressure is exactly anterior braking pressure.Owing to the needs of transportation development, big automobile is increasing, superimposed trailer is more and more longer at present, and the phenomenon of back car propelling movement front truck is very general in brake process.Adopt synchronous RE valve, though can accelerate the brake of trailing wheel, remove the wheel that brake is considerably slower than front part of vehicle, cause the trailing wheel car that stagnates, it is slow to recover to go, the brake shoe serious wear, and brake drum generates heat.Traditional RE valve not too has been applicable to the lengthening automobile, and the problem that solves the trailing wheel braking with the quantity that increases relay valve neither best choice.Brake before and after how making synchronously, it is also synchronous to remove brake, is related to the big problem of ride safety of automobile.
Summary of the invention
The objective of the invention is to back axle braking and the synchronous problem of front-wheel, the releasing brake synchronous fast exhaust emergency relay valve fast, safe in utilization after a kind of fast, brake of braking is provided to above-mentioned big automobile, superimposed trailer, trailer and handing-over car.
In order to achieve the above object, the present invention has mainly adopted following technical scheme to realize.The present invention mainly is made up of servo valve housing and loam cake and the lower cover be located on the housing, be provided with in the described housing can up-and-down movement relay piston, relay piston is provided with the relay piston lid, and is provided with the hole and fixes with back-up ring.On housing, be provided with intake interface, air tank interface and outlet chamber, adjusting chamber, on relay piston, be provided with gas storage chamber and control chamber assembly, adopt the sealing of O RunddichtringO between gas storage chamber and the relay piston lid.Handle interface and handle the chamber last being covered with.Seal by the O RunddichtringO between loam cake and the housing.Also seal with the O RunddichtringO respectively between relay piston and housing and the loam cake.Described control chamber assembly is made up of center shaft and the control plunger be located on the center shaft; Control plunger can move up and down in relay piston together with center shaft; The control plunger below is provided with the logical control valve seat that moves up and down along center shaft; Center shaft is placed in the control valve seat of relay piston, and seals with the O RunddichtringO.The top of center shaft is provided with hold-down nut, is provided with the O RunddichtringO between center shaft and the hold-down nut, and the relay piston of its top covers and is provided with the hole and uses back-up ring.Be provided with the O RunddichtringO between control plunger and the relay piston lid, also be provided with control valve seat spring and control plunger spring on the control plunger.Described center shaft is provided with control cock deflation hole and following control cock deflation hole; Should go up control cock deflation hole and following control cock deflation hole respectively be located at center shaft on last control cock and following control cock match; On last control cock deflation hole and following control cock deflation hole, also be provided with control valve spring; Last control cock places in the control inlet chamber of relay piston with following control cock, and the control inlet chamber is connected with intake interface through air vent.The bottom of center shaft is passed the control outlet chamber of relay piston bottom and is provided with the sealing of O RunddichtringO.On relay piston, also be provided with spiracle, spiracle is connected with outlet chamber, and outlet chamber connects the interface of giving vent to anger, and the present invention is provided with six interfaces of giving vent to anger.
The present invention compared with prior art has following tangible advantage and innovation.(1) exhaust after the brake has been accelerated in the setting of control chamber assembly of the present invention, and rear wheel is removed brake and anterior wheel basic synchronization, and it is fast to remove brake.(2) the present invention is installed on big automobile, the superimposed trailer, makes the front and rear part brake synchronously, the phenomenon that the back car pushes away front truck in brake process, can not occur.(3) valve throughput of the present invention is big especially, is provided with 6 interfaces of giving vent to anger, and has guaranteed the braking needs of the many wheels of long vehicle.
The present invention is applicable to the braking of big automobile, superimposed trailer and trailer.
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail.
Description of drawings
Fig. 1 is an integral structure cut-away view of the present invention.
Fig. 2 is a control chamber unit construction cut-away view of the present invention.
Fig. 3 is an outward appearance upward view of the present invention.
The specific embodiment
As shown in Figure 1, the present invention mainly is made up of with 6 of lower covers servo valve housing 5 and the loam cake 4 be located on the housing 5, be provided with in the described housing 5 can up-and-down movement relay piston 12, relay piston 12 is provided with relay piston lid 13, and is provided with the hole and fixes with back-up ring.On housing 5, be provided with intake interface 2, air tank interface 3, give vent to anger interface 41 and outlet chamber 8, regulate chamber 10; On relay piston 12, be provided with gas storage chamber 11 and control chamber assembly 9; Housing 5 adopts 17 sealings of O RunddichtringO with loam cake 4; Housing 5 adopts 16 sealings of O RunddichtringO with relay piston 12, and loam cake 4 adopts 14 sealings of O RunddichtringO with relay piston 12.In loam cake 4, be provided with and handle interface 1 and handle chamber 7.Also seal with O RunddichtringO 14,15,16 respectively between relay piston 12 and loam cake 4 and the housing 5.
As shown in Figure 2; Described control chamber assembly 9 is made up of center shaft 27 and 21 of control plungers being located on the center shaft 27; Control plunger 21 can move up and down in relay piston 12 together with center shaft 27; Control plunger 21 belows are provided with the control valve seat 25 that can move up and down along center shaft 27, and center shaft 27 is placed in the control valve seat 25 of relay piston 21, and with 26 sealings of O RunddichtringO.The top of center shaft 27 is provided with hold-down nut 19, is provided with O RunddichtringO 20 between center shaft 27 and the hold-down nut 19, and control plunger 21 and center shaft 27 are connected as a single entity, and the relay piston lid 13 of its top is provided with the hole with back-up ring 18.Be provided with O RunddichtringO 22 between control plunger 21 and the relay piston lid 13, also be provided with control valve seat spring 23 and control plunger spring 24 on the control plunger 21.Described center shaft 27 is provided with the last control cock deflation hole 31 and following control cock deflation hole 32 that is communicated with the center shaft aperture; Aperture and atmosphere in the middle of the center shaft 27; Should go up control cock deflation hole 31 and following control cock deflation hole 32 respectively be located at center shaft 27 on last control cock 28 and following control cock 30 match.Between last control cock 28 and following control cock 30, also be provided with control valve spring 29, last control cock 28 places in the control inlet chamber 39 of relay piston 13 with following control cock 30, and control inlet chamber 39 is connected with outlet chamber 8 through air vent 34.The bottom of center shaft 27 is passed the control outlet chamber 40 of relay piston 12 bottoms and is provided with 35 sealings of O RunddichtringO.During brake, handle chamber 7 air inlets, control plunger 21 moves down together with center shaft 27; Control plunger 21 promotes control valve seat 25 and moves down, and pushes control cock 28 open, after control plunger 12 reaches stress balance, closes; Control cock deflation hole 32 is communicated with control outlet chamber 39, and control outlet chamber 39 communicates with regulating chamber 10 through aperture, regulates chamber 10 and atmosphere this moment; Handle the piston area of the piston area in chamber 7 on the relay piston 12 greater than outlet chamber 8; For keeping the balance of relay piston 12, the air pressure of outlet chamber 8 is greater than the air pressure of handling chamber 7, and this moment, the vehicle rear brake pressure raise fast than the front portion; It is poor long pressure rising time to have remedied trailing wheel and front-wheel pilot line, reaches the purpose of synchronous braking.When removing brake; Move at control plunger 21, control cock deflation hole 32 and control outlet chamber 40 are closed, open down control cock 30 then together with center shaft 27; Adjusting chamber 10 is communicated with outlet chamber 8; Two cavity area sums are greater than the piston area of handling chamber 7, and the air pressure of outlet chamber 8 will reach the purpose of quick exhaust less than the air pressure of handling chamber 7.On relay piston 12, also be provided with spiracle 33, spiracle 33 is connected with the deflation hole of main valve and atmosphere.Relay piston 12 adopts 37,38 sealings of O RunddichtringO with relay piston lid 13, and fastening with middle four screws with back-up ring 36 with the hole.
As shown in Figure 3, outlet chamber 8 connects the interface 41 of giving vent to anger, and the present invention is provided with six interfaces 41 of giving vent to anger.
The present invention is applicable to the braking of big automobile, superimposed trailer, trailer and handing-over car.
Claims (3)
1. synchronous fast exhaust emergency relay valve; Mainly form by servo valve housing (5) and loam cake (4) and the lower cover (6) be located on the housing (5); Be provided with relay piston (12) in the described housing (5); Relay piston (12) is provided with relay piston lid (13); On housing (5), be provided with intake interface (2), air tank interface (3) and the interface of giving vent to anger (41), outlet chamber (8), regulate chamber (10); It is characterized in that on relay piston (12), being provided with gas storage chamber (11) and control chamber assembly (9), control chamber assembly (9) is made up of center shaft (27) and the control plunger (21) be located on the center shaft (27), and control plunger (21) below is provided with the control valve seat (25) that can move up and down; Center shaft (27) is placed in the control valve seat (25); And with O RunddichtringO (26) sealing, the top of center shaft (27) is provided with hold-down nut (19), is provided with O RunddichtringO (20) between center shaft (27) and the hold-down nut (19); The relay piston lid (13) of control plunger (21) top is provided with the hole with back-up ring (18); Be provided with O RunddichtringO (22) between control plunger (21) and the relay piston lid (13), also be provided with control valve seat spring (23) and control plunger spring (24) under the control plunger (21), described center shaft (27) is provided with control cock deflation hole (31) and following control cock deflation hole (32); Should go up control cock deflation hole (31) and following control cock deflation hole (32) respectively be located at center shaft (27) on last control cock (28) and following control cock (30) match; Last control cock (28) and following control cock (30) can move up and down along center shaft in control inlet chamber (39), between last control cock (28) and following control cock (30), also are provided with control valve spring (29), and last control cock (28) and following control cock (30) place in the control inlet chamber (39) of relay piston lid (13); Control inlet chamber (39) is connected with outlet chamber (8) through air vent (34), and the bottom of center shaft (27) is passed the control outlet chamber (40) of relay piston (12) bottom and is provided with O RunddichtringO (35) sealing.
2. synchronous fast exhaust emergency relay valve according to claim 1; It is characterized in that the described spiracle (33) that on relay piston (12), also is provided with; Spiracle (33) is connected with the open to atmosphere deflation hole of main valve, and outlet chamber (8) connects the interface (41) of giving vent to anger, and wherein is provided with six interfaces of giving vent to anger (41).
3. synchronous fast exhaust emergency relay valve according to claim 1 is characterized in that described relay piston (12) and relay piston lid (13) adopt O RunddichtringO (37,38) sealing, and fastening with back-up ring (36) and middle four screws with the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101568303A CN101439714B (en) | 2007-11-19 | 2007-11-19 | Synchronous fast exhaust emergency relay valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101568303A CN101439714B (en) | 2007-11-19 | 2007-11-19 | Synchronous fast exhaust emergency relay valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101439714A CN101439714A (en) | 2009-05-27 |
| CN101439714B true CN101439714B (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101568303A Expired - Fee Related CN101439714B (en) | 2007-11-19 | 2007-11-19 | Synchronous fast exhaust emergency relay valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN101439714B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3118077B1 (en) * | 2015-07-15 | 2021-06-16 | KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH | Relay valve and method of controlling a relay valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3033620A1 (en) * | 1980-09-06 | 1982-04-22 | Robert Bosch Gmbh, 7000 Stuttgart | TRAILER CONTROL VALVE |
| DE3409303A1 (en) * | 1984-03-14 | 1985-09-26 | Graubremse Gmbh, 6900 Heidelberg | Relay valve with pressure relief, insertable between handbrake valve and spring-loaded brake cylinder |
| US4575157A (en) * | 1983-06-15 | 1986-03-11 | Wabco Westinghouse Fahrzeugbremsen Gmbh | Pneumatically controlled relay valve arrangements |
| CN2161525Y (en) * | 1993-03-30 | 1994-04-13 | 陈仲明 | Synchronous emergency relay valve |
| CN2486425Y (en) * | 2001-07-06 | 2002-04-17 | 陈仲明 | Electric control synchronous relay valve |
| CN2587729Y (en) * | 2001-10-23 | 2003-11-26 | 陈仲安 | Relay valve for vehicle |
| CN201124834Y (en) * | 2007-11-29 | 2008-10-01 | 陈仲明 | Synchronous fast exhaust emergency relay valve |
-
2007
- 2007-11-19 CN CN2007101568303A patent/CN101439714B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3033620A1 (en) * | 1980-09-06 | 1982-04-22 | Robert Bosch Gmbh, 7000 Stuttgart | TRAILER CONTROL VALVE |
| US4575157A (en) * | 1983-06-15 | 1986-03-11 | Wabco Westinghouse Fahrzeugbremsen Gmbh | Pneumatically controlled relay valve arrangements |
| DE3409303A1 (en) * | 1984-03-14 | 1985-09-26 | Graubremse Gmbh, 6900 Heidelberg | Relay valve with pressure relief, insertable between handbrake valve and spring-loaded brake cylinder |
| CN2161525Y (en) * | 1993-03-30 | 1994-04-13 | 陈仲明 | Synchronous emergency relay valve |
| CN2486425Y (en) * | 2001-07-06 | 2002-04-17 | 陈仲明 | Electric control synchronous relay valve |
| CN2587729Y (en) * | 2001-10-23 | 2003-11-26 | 陈仲安 | Relay valve for vehicle |
| CN201124834Y (en) * | 2007-11-29 | 2008-10-01 | 陈仲明 | Synchronous fast exhaust emergency relay valve |
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| Publication number | Publication date |
|---|---|
| CN101439714A (en) | 2009-05-27 |
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Granted publication date: 20120704 Termination date: 20141119 |
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| EXPY | Termination of patent right or utility model |