CN102658813B - Braking system for girder transportation vehicle - Google Patents
Braking system for girder transportation vehicle Download PDFInfo
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- CN102658813B CN102658813B CN201210121659.3A CN201210121659A CN102658813B CN 102658813 B CN102658813 B CN 102658813B CN 201210121659 A CN201210121659 A CN 201210121659A CN 102658813 B CN102658813 B CN 102658813B
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Abstract
The invention specifically discloses a braking system for a girder transportation vehicle for 900-tons box girder transportation, solving the problem of safety accidents caused by transitory failure of the braking system owing to insensitive braking, insufficient braking force and engine stalling in the braking system of the conventional girder transportation vehicle. A hydraulic motor is connected with a hydraulic braking system; an air braking system is connected on wheels; an engine is connected with a pump station; the pump station is communicated with an oil tank and a hydraulic electromagnetic valve; the hydraulic electromagnetic valve is communicated with a hydraulic brake and the oil tank; the hydraulic brake is matched with the hydraulic motor; an overflow valve is arranged between the hydraulic electromagnetic valve and the oil tank; the engine, a power generator, a hydraulic emergency stop switch and the hydraulic electromagnetic valve are connected in sequence; a normally-closed electromagnetic valve is connected in series with a group of contacts of the emergency stop switch, so that a parking braking circuit is formed; a normally-open electromagnetic valve, the other group of contacts of the emergency stop switch, and a storage battery are connected in series, so that a traveling braking circuit is formed; and an air brake is respectively communicated with the normally-open electromagnetic valve and the normally-closed electromagnetic valve. The braking system disclosed by the invention has the capability of improving the safety performance of girder transportation vehicle braking.
Description
Technical field
The present invention relates to the constituent elements of high speed railway box girder transportation device, be specially 900 tons of box girder transport beam transportation vehicle brake system.
Background technology
Along with the fast development of high speed railway, Midwest has become the key area of construction, because central and west regions are hilly and mountainous land mostly, construction environment is severe, existing beam transportation vehicle is all according to meeting 20 ‰ with the design of the transportation request of descending slope and short-range steep gradient top box beam, the wheel brake system of existing beam transportation vehicle, can not synchronously realize service brake and braking during standstill, and brake switch sluggish when pressing, compressed air brake cylinder venting slowly, cause braking insensitive and braking force is inadequate, when long steep grade runs into the gradient being greater than 20 ‰, the driving engine of beam transportation vehicle easily meets accident flame-out, now brake system failure, system needs the computer detection time of 6-9 second, but interior beam transportation vehicle is in free state during this period of time, any button, knob is all out-of-action, easily there is safety misadventure in beam transportation vehicle.
Summary of the invention
The present invention in order to the brake system solving existing beam transportation vehicle is insensitive, braking force not and engine off causes the problem of brake system short time malfunctioning generation safety misadventure, provide a kind of beam transportation vehicle brake system.
The present invention adopts following technical scheme to realize: beam transportation vehicle brake system, and comprise wheel and connected retarder, the input end of retarder is connected with HM Hydraulic Motor; The output shaft of HM Hydraulic Motor is connected with hydraulic brake system, wheel is connected with Pneumatic brake systems;
Described hydraulic brake system comprises driving engine, pumping plant, fuel tank, check valve, hydraulic buttery valve, hydraulic brake, by pass valve, electrical generator, hydraulic pressure emergency stop switch, the output shaft of driving engine is connected with pumping plant, the oil inlet end of pumping plant is communicated with fuel tank, the oil outlet end of pumping plant is communicated with the first input end of hydraulic buttery valve by check valve, the mouth of hydraulic buttery valve is communicated with the input end of hydraulic brake, the mouth of hydraulic brake coordinates with the output shaft of HM Hydraulic Motor, the first input end of hydraulic buttery valve, second input end all communicates with fuel tank, and be provided with by pass valve between the first input end of hydraulic buttery valve and fuel tank, the mouth of driving engine is connected with the input end of electrical generator, the mouth of electrical generator is connected with hydraulic buttery valve by hydraulic pressure emergency stop switch,
Described Pneumatic brake systems comprises power-absorption fan, parking brake circuit, service brake circuit, and described parking brake circuit comprises normally closed solenoid valve, emergency stop switch; One group of contact serial connection of normally closed solenoid valve and emergency stop switch forms parking brake circuit; Described service brake circuit comprises normally open solenoid valve, emergency stop switch, storage battery; Another group contact of normally open solenoid valve, emergency stop switch, storage battery serial connection form service brake circuit; The input end of power-absorption fan is communicated with the mouth of normally open solenoid valve, normally closed solenoid valve respectively.
During operation, retarder is replaced by the retarder of band hydraulic brake, the conducting of Energy control hydraulic buttery valve, during engine running, hydraulic oil in fuel tank pumps and enters in the oil cylinder of hydraulic brake by the first input end of check valve, hydraulic buttery valve by pumping plant, when in the oil cylinder of hydraulic brake, oil pressure is greater than 5Mpa, and the oil that pumping plant pumps, be back in fuel tank through the first input end of hydraulic buttery valve, by pass valve, hydraulic brake does not work; When driving engine accident extinguishing, pumping plant stop control lever, the in-oil cylinder hydraulic oil of hydraulic brake is back to fuel tank through electromagnetic valve second input end, hydraulic brake brake fluid pressure motor output shaft, drives beam transportation vehicle braking; When pressing hydraulic pressure emergency stop switch, make hydraulic buttery valve power-off, the oil in the oil that pumping plant pumps and hydraulic brake oil cylinder directly flows back to fuel tank through hydraulic buttery valve.
When beam transportation vehicle runs, normally closed solenoid valve is energized, power-absorption fan passes into high pressure air, and power-absorption fan is opened, and wheel is in free state, because emergency stop switch is interlocking structure, when pressing emergency stop switch to its another contact, while the braking during standstill air chamber venting of power-absorption fan, the service brake air chamber air inlet of power-absorption fan, realize braking during standstill and service brake simultaneously, braking force is significantly increased; When as out of control in accident power-off, control system, engine off needs power-off restarting, press emergency stop switch, storage battery makes normally open solenoid valve be energized, simultaneously normally closed solenoid valve power-off, and then realizes service brake and braking during standstill.
Reasonable in design of the present invention is reliable, realize the power-off of beam transportation vehicle Full Vehicle System, driving engine accident extinguishing, electric-control system report fault, control system reports an error time Self-controlling-brake, improve the safety performance of beam transportation vehicle braking, and realize the object that little braking force brakes large rotating torque, remarkable benefit, has that integral structure is simple, applicability is strong and drops into low advantage.
Accompanying drawing explanation
Fig. 1 is the structural representation of hydraulic brake system in the present invention;
Fig. 2 is the structural representation of Pneumatic brake systems in the present invention.
Detailed description of the invention
Beam transportation vehicle brake system, comprise wheel and connected retarder, the input end of retarder is connected with HM Hydraulic Motor; The output shaft of HM Hydraulic Motor is connected with hydraulic brake system, wheel is connected with Pneumatic brake systems;
Described hydraulic brake system comprises driving engine, pumping plant, fuel tank, check valve, hydraulic buttery valve, hydraulic brake, by pass valve, electrical generator, hydraulic pressure emergency stop switch, the output shaft of driving engine is connected with pumping plant, the oil inlet end of pumping plant is communicated with fuel tank, the oil outlet end of pumping plant is communicated with the first input end of hydraulic buttery valve by check valve, the mouth of hydraulic buttery valve is communicated with the input end of hydraulic brake, the mouth of hydraulic brake coordinates with the output shaft of HM Hydraulic Motor, the first input end of hydraulic buttery valve, second input end all communicates with fuel tank, and be provided with by pass valve between the first input end of hydraulic buttery valve and fuel tank, the mouth of driving engine is connected with the input end of electrical generator, the mouth of electrical generator is connected with hydraulic buttery valve by hydraulic pressure emergency stop switch,
Described Pneumatic brake systems comprises power-absorption fan, parking brake circuit, service brake circuit, and described parking brake circuit comprises normally closed solenoid valve, emergency stop switch; One group of contact serial connection of normally closed solenoid valve and emergency stop switch forms parking brake circuit; Described service brake circuit comprises normally open solenoid valve, emergency stop switch, storage battery; Another group contact of normally open solenoid valve, emergency stop switch, storage battery serial connection form service brake circuit; The input end of power-absorption fan is communicated with the mouth of normally open solenoid valve, normally closed solenoid valve respectively.
In specific implementation process, the quantity of retarder is 18, be through that test of many times draws, hydraulic buttery valve is directly connected with the control power supply in beam transportation vehicle operator's compartment, the quantity of driving engine, pumping plant, check valve and emergency stop switch is two, and is provided with an emergency stop switch before and after beam transportation vehicle in operator's compartment.
Claims (1)
1. a beam transportation vehicle brake system, comprise wheel and connected retarder, the input end of retarder is connected with HM Hydraulic Motor; It is characterized in that: the output shaft of HM Hydraulic Motor is connected with hydraulic brake system, wheel is connected with Pneumatic brake systems;
Described hydraulic brake system comprises driving engine, pumping plant, fuel tank, check valve, hydraulic buttery valve, hydraulic brake, by pass valve, electrical generator, hydraulic pressure emergency stop switch, the output shaft of driving engine is connected with pumping plant, the oil inlet end of pumping plant is communicated with fuel tank, the oil outlet end of pumping plant is communicated with the first input end of hydraulic buttery valve by check valve, the mouth of hydraulic buttery valve is communicated with the input end of hydraulic brake, the mouth of hydraulic brake coordinates with the output shaft of HM Hydraulic Motor, the first input end of hydraulic buttery valve, second input end all communicates with fuel tank, and be provided with by pass valve between the first input end of hydraulic buttery valve and fuel tank, the mouth of driving engine is connected with the input end of electrical generator, the mouth of electrical generator is connected with hydraulic buttery valve by hydraulic pressure emergency stop switch,
Described Pneumatic brake systems comprises power-absorption fan, parking brake circuit, service brake circuit, and one group of contact serial connection of normally closed solenoid valve and emergency stop switch forms parking brake circuit; Another group contact of normally open solenoid valve, emergency stop switch, storage battery serial connection form service brake circuit; The input end of power-absorption fan is communicated with the mouth of normally open solenoid valve, normally closed solenoid valve respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210121659.3A CN102658813B (en) | 2012-04-24 | 2012-04-24 | Braking system for girder transportation vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210121659.3A CN102658813B (en) | 2012-04-24 | 2012-04-24 | Braking system for girder transportation vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102658813A CN102658813A (en) | 2012-09-12 |
| CN102658813B true CN102658813B (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210121659.3A Active CN102658813B (en) | 2012-04-24 | 2012-04-24 | Braking system for girder transportation vehicle |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109552294A (en) * | 2017-09-25 | 2019-04-02 | 郑州宇通客车股份有限公司 | A kind of visitor's auto electronic parking control system and car |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1651292A (en) * | 2003-11-12 | 2005-08-10 | 瓦博泰克控股公司 | Improved electronic control for railway airbrake |
| CN1880138A (en) * | 2005-06-15 | 2006-12-20 | 哈尔德克斯制动器公司 | Electronic park brake valve system for air brakes vehicles |
| CN101537830A (en) * | 2009-04-22 | 2009-09-23 | 北京人和路通科技有限公司 | Computer control interface controller of locomotive brake and method for connecting controller and locomotive brake |
| DE102008017852A1 (en) * | 2008-04-09 | 2009-10-15 | Wabco Gmbh | Shift Solenoid |
-
2012
- 2012-04-24 CN CN201210121659.3A patent/CN102658813B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1651292A (en) * | 2003-11-12 | 2005-08-10 | 瓦博泰克控股公司 | Improved electronic control for railway airbrake |
| CN1880138A (en) * | 2005-06-15 | 2006-12-20 | 哈尔德克斯制动器公司 | Electronic park brake valve system for air brakes vehicles |
| DE102008017852A1 (en) * | 2008-04-09 | 2009-10-15 | Wabco Gmbh | Shift Solenoid |
| CN101537830A (en) * | 2009-04-22 | 2009-09-23 | 北京人和路通科技有限公司 | Computer control interface controller of locomotive brake and method for connecting controller and locomotive brake |
Non-Patent Citations (1)
| Title |
|---|
| 420t轮胎式箱梁运输车设计研究;朱学斌等;《铁道标准设计》;20000331;第20卷(第3期);第5-8页 * |
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| CN102658813A (en) | 2012-09-12 |
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Owner name: CHINA RAILWAY NO. 3 ENGINEERING GROUP BRIDGE ENGIN Free format text: FORMER OWNER: LINE BRIDGE ENGINEERING BRANCH, CHINA RAILWAY NO. 3 ENGINEERING GROUP CO., LTD. Effective date: 20150805 |
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Effective date of registration: 20150805 Address after: 030001 Yingze street, Shanxi, No. 269, No. Patentee after: China Railway Third Engineering Co., Ltd. Patentee after: China Railway Third Bureau Line and Bridge Engineering Co., Ltd. Address before: 030001 Yingze street, Shanxi, No. 269, No. Patentee before: China Railway Third Engineering Co., Ltd. Patentee before: Line Bridge Engineering Branch, China Railway No.3 Engineering Group Co., Ltd. |