CN201525371U - Air brake system with low pressure safety protection - Google Patents

Air brake system with low pressure safety protection Download PDF

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Publication number
CN201525371U
CN201525371U CN2009202299737U CN200920229973U CN201525371U CN 201525371 U CN201525371 U CN 201525371U CN 2009202299737 U CN2009202299737 U CN 2009202299737U CN 200920229973 U CN200920229973 U CN 200920229973U CN 201525371 U CN201525371 U CN 201525371U
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CN
China
Prior art keywords
pressure sensor
brake
control module
braking
parking
Prior art date
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
CN2009202299737U
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Chinese (zh)
Inventor
李保才
闫玲伟
刘卫
刘亚娟
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.)
Dongfeng Motor Corp
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Dongfeng Motor Corp
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
Application filed by Dongfeng Motor Corp filed Critical Dongfeng Motor Corp
Priority to CN2009202299737U priority Critical patent/CN201525371U/en
Application granted granted Critical
Publication of CN201525371U publication Critical patent/CN201525371U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses an air brake system with low pressure safety protection, comprising a compressor, an air reservoir, a front brake chamber, a rear brake chamber, a relay valve, a hand brake valve, a foot brake valve and a dual-way check valve which are connected by gas paths, the lower parts of a front parking air reservoir and a front braking air reservoir are respectively provided with a front parking pressure sensor (20a) and a front braking pressure sensor (20b) which are connected with a front control module (21), and the output of the front control module (21) controls a front braking electromagnetic valve (19a); and the lower parts of a rear parking air reservoir and a rear braking air reservoir are respectively provided with a rear parking pressure sensor (20c) and a rear braking pressure sensor (20d) which are connected with a rear control module (22), and the output of the rear control module (22) controls a rear braking electromagnetic valve (19b).

Description

A kind of Pneumatic braking system with infrabar safety guard-safeguard
Technical field
The utility model relates to a kind of Pneumatic braking system with infrabar safety guard-safeguard, is vehicle Pneumatic braking system technical field.
Background technology
At present, in the vehicle of Pneumatic braking system, general braking sensor all is contained on the foot brake valve, and at the driving glancing impact, after the brake pedal action, speed-slackening signal sends simultaneously, passes to stop, tail and number plate light; Travelling gantry frame relay valve before and after this air-flow is controlled simultaneously, relay valve is opened by valve, bridge air chamber before and after the air pressure in the air receiver fills into fast, the air chamber push rod stretches out, the rotation of vehicle bridge cam before and after promoting, thus brake shoes is opened, friction lining and brake wheel friction realize braking maneuver.The thrust of air chamber push rod is relevant with the air pressure in the brake system, and when air pressure was low, the thrust of push rod was just little, the safe atmospheric pressure value of general air brakes vehicles is decided to be about 550KPa, drives a vehicle when air pressure is lower than 550KPa, and air pressure is low excessively, may cause braking failure, cause traffic accident.
Summary of the invention
The purpose of this utility model is a kind of compressed air brake system with infrabar safety guard-safeguard of design, one baroceptor is installed on air receiver, signal passes through electromagnetic valve, be controlled to the break-make gas of front and back bridge compressed air brake cylinder pipeline by electromagnetic valve, when brake piping air pressure is lower than 550KPa, sensor can produce an electric signal, and this electric signal is passed to buzzer phone, produces buzzing; Send electromagnetic valve simultaneously to, electromagnetic valve is died, make air chamber produce self-locking action, braking comes into force.
The technical solution of the utility model is that the Pneumatic braking system with infrabar safety guard-safeguard of the present utility model comprises by gas circuit bonded assembly compressor, air receiver, preceding compressed air brake cylinder, back compressed air brake cylinder, relay valve, hand brake valve, foot brake valve, bilateral check valve, Parking pressure sensor and preceding brake-pressure sensor before install respectively the bottom of preceding Parking air receiver and preceding braking air receiver, preceding Parking pressure sensor is connected with preceding control module with preceding brake-pressure sensor, braking electromagnetic valve before the output control of preceding control module; Bottom at back Parking air receiver and back braking air receiver is installed back Parking pressure sensor and back brake-pressure sensor respectively, back Parking pressure sensor is connected with the back control module with the back brake-pressure sensor, the output control back braking electromagnetic valve of back control module.
Control module comprises that its normally closed contact is connected in the relay of preceding braking electromagnetic valve current supply circuit before described, and the normally closed contact of preceding Parking pressure sensor and preceding brake-pressure sensor is connected in the current supply circuit of relay coil, infrabar alarm lamp, low pressure alarming buzzer phone; Back control module is identical with preceding control module.
Advantage of the present utility model:
One, the utility model in use, if when the Parking state, air pressure is lower than 550KPa, bridge is in automatic locking state before and after the vehicle under the mechanical action of compressed air brake cylinder spring, can realize the stability of braking during standstill; If when driving states, when air pressure was lower than 550KPa, the utility model will come into force, and realized braking maneuver, and vehicle is in the autobrake state, need not that chaufeur is stepped on brake pedal or handle brake activation valve handle is braked.
Two, when vehicle is driven a vehicle starting at every turn, vehicle must pump enough air in and be pressed in safe atmospheric pressure value (550KPa) when above, could drive a vehicle, when chaufeur is not beaten enough air pressure with regard to the driving starting, there is higher danger, after vehicle adopts the utility model, just can avoid this phenomenon to take place, because when air pressure is lower than safety value, the consistent braking mode that is in of vehicle can not be driven a vehicle.More than 2 as can be seen, adopt the utility model after, the safety of vehicle is higher.
Description of drawings
Fig. 1 is a Pneumatic braking system schematic diagram of the present utility model.
Fig. 2 is a control module part schematic diagram.
The specific embodiment
Fig. 1 is a Pneumatic braking system schematic diagram of the present utility model: the Pneumatic braking system with infrabar safety guard-safeguard of the present utility model comprises by gas circuit bonded assembly compressor 1, complex dryer 2, regeneration air receiver 3 four-loop protection valves 4, preceding braking during standstill air receiver 5, preceding service brake air receiver 6, back braking during standstill air receiver 7, back service brake air receiver 8, back compressed air brake cylinder 11a and 11b, preceding compressed air brake cylinder 12a and 12b, preceding compressed air brake cylinder and back compressed air brake cylinder and foot brake valve 14 bonded assembly relay valve 9a and 9b, preceding compressed air brake cylinder and back compressed air brake cylinder and hand brake valve 13 bonded assembly differential type relay valve 10a and 10b, bilateral check valve 15, preceding braking electromagnetic valve 19a and back braking electromagnetic valve 19b, Parking pressure sensor 20a and preceding brake-pressure sensor 20b before install respectively the bottom of preceding Parking air receiver 5 and preceding braking air receiver 6, preceding Parking pressure sensor 20a is connected with preceding control module 21 with preceding brake-pressure sensor 20b, braking electromagnetic valve 19a before the output control of preceding control module 21; Bottom at back Parking air receiver and back braking air receiver is installed back Parking pressure sensor 20c and back brake-pressure sensor 20d respectively, back Parking pressure sensor 20c is connected with back control module 22 with back brake-pressure sensor 20d, the output control back braking electromagnetic valve 19b of back control module 22.16a and 16b are stop lamp switchs, the 17th, and the crosspointer air-pressure gauge, the 18th, air pressure horn, 21c are the low pressure alarming buzzer phones.
As Fig. 2: preceding control module 21 comprise its normally closed contact be connected in before the relay 21a of braking electromagnetic valve 19a current supply circuit, the normally closed contact of preceding Parking pressure sensor 20a and preceding brake-pressure sensor 20b is connected in the current supply circuit of relay 21a coil, infrabar alarm lamp 21b, low pressure alarming buzzer phone 21c; Back control module 22 is identical with preceding control module 21.
The explanation of the principle of compressed air brake cylinder: when the gas in the air receiver by pipeline from compressed air brake cylinder a mouth when air chamber is inflated, the air chamber push rod is released, and can realize the independent brake action, presses irrelevant with the b implication; When air chamber from the b mouth by pipeline after electromagnetic valve 19a and 19b exhaust, the b mouth does not have air pressure, the air chamber push rod also can be realized independent brake action under the effect of compression spring, press irrelevant with a implication.
When motor vehicle braking system air pressure is lower than 550KPa, pressure sensor 20 is in conducting state, this moment, infrabar alarm lamp 21b lighted, the work of 21c low pressure alarming buzzer phone, relay coil 21a energising, normally closed point disconnects, this moment, braking electromagnetic valve 19 was not worked, the electromagnetic valve gas circuit is in normally open, thereby compressed air brake cylinder b mouth does not have gas, realizes braking; When air-channel system air pressure is elevated to 550KPa when above, pressure sensor is in off-state, and infrabar alarm lamp and buzzer phone are not worked, and simultaneously, relay coil does not have electricity, and electromagnetic valve is in conducting state, and gas circuit is ventilated to air chamber b mouth, and braking is removed, and realizes driving.

Claims (2)

1. Pneumatic braking system with infrabar safety guard-safeguard, comprise by gas circuit bonded assembly compressor, air receiver, preceding compressed air brake cylinder, back compressed air brake cylinder, relay valve, hand brake valve, the foot brake valve, the bilateral check valve, it is characterized in that: Parking pressure sensor (20a) and preceding brake-pressure sensor (20b) before install respectively the bottom of preceding Parking air receiver and preceding braking air receiver, preceding Parking pressure sensor (20a) is connected with preceding control module (21) with preceding brake-pressure sensor (20b), braking electromagnetic valve (19a) before the output control of preceding control module (21); Bottom at back Parking air receiver and back braking air receiver is installed back Parking pressure sensor (20c) and back brake-pressure sensor (20d) respectively, back Parking pressure sensor (20c) is connected with back control module (22) with back brake-pressure sensor (20d), the output control back braking electromagnetic valve (19b) of back control module (22).
2. the Pneumatic braking system with infrabar safety guard-safeguard according to claim 1, it is characterized in that: preceding control module (21) comprises that its normally closed contact is connected in the relay (21a) of preceding braking electromagnetic valve (19a) current supply circuit, and the normally closed contact of preceding Parking pressure sensor (20a) and preceding brake-pressure sensor (20b) is connected in the current supply circuit of relay (21a) coil, infrabar alarm lamp (21b), low pressure alarming buzzer phone (21c); Back control module (22) is identical with preceding control module (21).
CN2009202299737U 2009-11-17 2009-11-17 Air brake system with low pressure safety protection Expired - Lifetime CN201525371U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202299737U CN201525371U (en) 2009-11-17 2009-11-17 Air brake system with low pressure safety protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202299737U CN201525371U (en) 2009-11-17 2009-11-17 Air brake system with low pressure safety protection

Publications (1)

Publication Number Publication Date
CN201525371U true CN201525371U (en) 2010-07-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009202299737U Expired - Lifetime CN201525371U (en) 2009-11-17 2009-11-17 Air brake system with low pressure safety protection

Country Status (1)

Country Link
CN (1) CN201525371U (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101973263A (en) * 2010-11-05 2011-02-16 湘潭电气设备制造有限责任公司 Anti-leakage two-way air braking system for variable-frequency speed-regulating industrial and mineral electric locomotive
CN102139691A (en) * 2011-03-01 2011-08-03 湖南南车时代电动汽车股份有限公司 Parking linkage method and device based on AMT (Automatic Mechanical Transmission)
CN102180162A (en) * 2011-04-12 2011-09-14 珠海市广通汽车有限公司 Novel pneumatic brake system for vehicle
CN102358278A (en) * 2011-07-29 2012-02-22 常林股份有限公司 Engineering mechanical braking system
CN102862564A (en) * 2012-09-18 2013-01-09 河南昌通科技有限公司 Automobile anti-ineffectiveness brake system
CN103057535A (en) * 2012-12-19 2013-04-24 三一重工股份有限公司 Air pressure braking system and vehicles with same
CN103407439A (en) * 2013-08-08 2013-11-27 南京理工大学 Air pressure adjustable type electronic parking braking system
CN103523001A (en) * 2013-10-16 2014-01-22 徐州重型机械有限公司 Engineering vehicle chassis brake control system and crane
CN104842986A (en) * 2015-05-21 2015-08-19 安徽安凯汽车股份有限公司 Hybrid power bus braking system
CN105151021A (en) * 2015-09-14 2015-12-16 郑州宇通客车股份有限公司 Car braking automatic control system and control method having man-machine double driving and double control function
CN106660536A (en) * 2014-06-18 2017-05-10 克诺尔商用车制动系统有限公司 Pneumatic device for a vehicle, comprising an integrated pressurized emergency reservoir
CN107891856A (en) * 2017-11-13 2018-04-10 浙江德翰制动系统有限公司 Control method for automobile Integral air processing system
CN111547030A (en) * 2019-02-11 2020-08-18 晟通科技集团有限公司 Semitrailer air pressure overlow alarm device

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101973263B (en) * 2010-11-05 2013-05-29 湘潭电气设备制造有限责任公司 Anti-leakage two-way air braking system for variable-frequency speed-regulating industrial and mineral electric locomotive
CN101973263A (en) * 2010-11-05 2011-02-16 湘潭电气设备制造有限责任公司 Anti-leakage two-way air braking system for variable-frequency speed-regulating industrial and mineral electric locomotive
CN102139691A (en) * 2011-03-01 2011-08-03 湖南南车时代电动汽车股份有限公司 Parking linkage method and device based on AMT (Automatic Mechanical Transmission)
CN102139691B (en) * 2011-03-01 2014-07-09 湖南南车时代电动汽车股份有限公司 Parking linkage method and device based on AMT (Automatic Mechanical Transmission)
CN102180162A (en) * 2011-04-12 2011-09-14 珠海市广通汽车有限公司 Novel pneumatic brake system for vehicle
CN102358278A (en) * 2011-07-29 2012-02-22 常林股份有限公司 Engineering mechanical braking system
CN102862564A (en) * 2012-09-18 2013-01-09 河南昌通科技有限公司 Automobile anti-ineffectiveness brake system
CN102862564B (en) * 2012-09-18 2015-04-08 昌通科技有限公司 Automobile anti-ineffectiveness brake system
CN103057535B (en) * 2012-12-19 2015-08-12 三一重工股份有限公司 Pneumatic braking system and be provided with the vehicle of this brake system
CN103057535A (en) * 2012-12-19 2013-04-24 三一重工股份有限公司 Air pressure braking system and vehicles with same
CN103407439A (en) * 2013-08-08 2013-11-27 南京理工大学 Air pressure adjustable type electronic parking braking system
CN103523001A (en) * 2013-10-16 2014-01-22 徐州重型机械有限公司 Engineering vehicle chassis brake control system and crane
CN106660536A (en) * 2014-06-18 2017-05-10 克诺尔商用车制动系统有限公司 Pneumatic device for a vehicle, comprising an integrated pressurized emergency reservoir
CN104842986A (en) * 2015-05-21 2015-08-19 安徽安凯汽车股份有限公司 Hybrid power bus braking system
CN105151021A (en) * 2015-09-14 2015-12-16 郑州宇通客车股份有限公司 Car braking automatic control system and control method having man-machine double driving and double control function
CN105151021B (en) * 2015-09-14 2018-01-19 郑州宇通客车股份有限公司 A kind of man-machine double vehicle braking automatic control systems and its control method for driving dual control
CN107891856A (en) * 2017-11-13 2018-04-10 浙江德翰制动系统有限公司 Control method for automobile Integral air processing system
CN107891856B (en) * 2017-11-13 2019-06-04 浙江德翰制动系统有限公司 Control method for automobile Integral air processing system
CN111547030A (en) * 2019-02-11 2020-08-18 晟通科技集团有限公司 Semitrailer air pressure overlow alarm device

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Granted publication date: 20100714