CN102358277A - Hydraulic braking system of container front crane - Google Patents
Hydraulic braking system of container front crane Download PDFInfo
- Publication number
- CN102358277A CN102358277A CN2011102298223A CN201110229822A CN102358277A CN 102358277 A CN102358277 A CN 102358277A CN 2011102298223 A CN2011102298223 A CN 2011102298223A CN 201110229822 A CN201110229822 A CN 201110229822A CN 102358277 A CN102358277 A CN 102358277A
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- slow
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- 238000003860 storage Methods 0.000 claims abstract description 9
- 238000004146 energy storage Methods 0.000 claims description 23
- 230000004913 activation Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract 3
- 239000003921 oil Substances 0.000 description 28
- 230000009286 beneficial effect Effects 0.000 description 3
- 210000001699 lower leg Anatomy 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention relates to the technical field of container front cranes, in particular to a hydraulic braking system of a container front crane. The hydraulic braking system is provided with a vehicle body, wherein a left pedal plate valve, a right pedal plate valve, a liquid charging valve, energy accumulators, a front-axle brake and a rear-axle brake are arranged on the vehicle body. The hydraulic braking system is characterized in that: the right pedal plate valve is formed by connecting a front-axle braking oil-way and a rear-axle braking oil-way in parallel; a slow-action valve is arranged on the left pedal plate valve; a valve core of the slow-action valve is connected with a valve core of a braking valve in series; the upper end of the valve core of the slow-action valve is connected with pedals; an oil inlet of the slow-action valve is communicated with a variable control port of a variable pump; an oil return port of the slow-action valve is communicated with an oil storage tank; when the left pedal plate valve is pedaled, oil at a braking port of the left pedal plate valve is communicated to a hydraulic control port of the right pedal plate valve, equivalently, the left pedal plate valve has a power cutoff effect at the same time of pedaling the right pedal plate valve. An oil outlet of the liquid charging valve is respectively connected with the energy accumulators of a parking braking valve, the left pedal plate valve and the right pedal plate valve, and the parking braking valve is integrated on the liquid charging valve. The hydraulic braking system disclosed by the invention has the advantages of novel structure, high safety, braking stability and the like.
Description
Technical field
The present invention relates to the freight container front and hang technical field, hydraulic brake system is hung in specifically a kind of freight container front that is used for the handling freight container.
Background technology
At present, hang in the freight container front is to be used for the heap height of freight container or the professional portable handling appliance on ground such as harbour, railway, and compared with fork truck, the front is hung more stable, flexible operation, and stacking tier is high.The hydraulic brake system of its propons and back axle is made up of left threading plate valve, right threading plate valve, energy storage, propons drg and back axle drg, and to the energy storage topping up, energy storage is that car brakeing provides metastable hydraulic oil source to Hydraulic Pump through prefill valve; Be connected with left threading plate valve and right threading plate valve respectively through the pipeline connection, and then with the drg that is connected to propons and back axle after left threading plate valve oil outlet and the parallel connection of right threading plate valve oil outlet respectively through shuttle valve, treadle valve is provided with pressure switch; Pressure switch is connected with safety warning light, when left threading plate valve or one of them treadle valve of right threading plate valve have pressure oil output, just this pressure is guided in the drg; Realize braking function, the weak point of this hydraulic brake system is: the one: this brake system left threading plate valve and right threading plate valve all adopt single circuit braking, when propons or back axle one side's et out of order; Then the car load brake system failure is prone to accidents, and safety is very low; The 2nd: because the left threading plate valve is identical to the braking of propons and back axle with the right threading plate valve, cuts off clutch and adopt the hydraulic control mode, can not guarantee that car load is to cut off power earlier; Still produce braking earlier; The drg life-span there is very big influence, the 3rd: when emergency braking, foot-operated plate valve about stepping on simultaneously; When if the left threading plate valve different foot-operated power occurs with the right threading plate valve; Because oil pressure relatively produces through shuttle valve, pressure fluctuates easily, and brake torque is unstable.
Summary of the invention
The objective of the invention is to solve the deficiency of above-mentioned prior art, provide a kind of novel structure, safe, high efficiency, braking pulsation-free freight container front to hang hydraulic brake system.
The technical solution adopted for the present invention to solve the technical problems is:
Hydraulic brake system is hung in a kind of freight container front, is provided with car body, and car body is provided with left threading plate valve, right threading plate valve, prefill valve, energy storage, propons drg and back axle drg, it is characterized in that the right threading plate valve is to be formed in parallel by propons brake circuit and back axle brake circuit; Be respectively equipped with the treadle valve brake spool on propons brake circuit and the back axle brake circuit, a brake spool oil outlet is connected with the propons drg, and another brake spool oil outlet is connected with the back axle drg; Be respectively equipped with energy storage on the oil inlet of two spools, the return opening of two spools is connected with petrol storage tank respectively, is beneficial to when an oil circuit breaks down; Another oil circuit still can produce brake torque, avoids brake failure, and safety performance is high; Be provided with shuttle valve between two energy storages, be beneficial to the pressure of two energy storages of comparison double loop treadle valve, the pressure of that energy storage that pressure is low draws gets back to prefill valve; Can make the timely topping up of prefill valve to guarantee the brake-pressure of two oil circuits respectively like this, reach the effect of safety arrestment, the left threading plate valve is provided with the slow-action valve; The slow-action valve core is connected in series with the brake activation valve spool mutually, and slow-action valve core upper end is connected with pedal, and the oil inlet of slow-action valve is connected with controllable capacity pump through controllable capacity pump quantitative control mouth; Return opening is connected with petrol storage tank, so that controllable capacity pump control car load servo pressure size, during push down on the pedal; The slow-action valve is action earlier, cuts off a part of power earlier, is braked by the brake activation valve spool then again; Make car load obtain best braking effect, when stepping on the left threading plate valve, the oil of left threading plate valve brake port leads to the hydraulic control mouth of right threading plate valve; When running into emergency situation, even chaufeur is stepped on left threading plate valve and right threading plate valve simultaneously, vehicle still relies on the double loop braking of right crus of diaphragm; It is different with right threading plate valve legpower and produce fluctuation of pressure the left threading plate valve can not occur, when stepping on the left threading plate valve, can make the controllable capacity pump swash plate return meta earlier; Cut off vehicle power earlier, pressure oil is incorporated into right threading plate valve hydraulic control hydraulic fluid port, promote the action of right steps valve core; Realize normal brake application, integrated stopping brake valve on the prefill valve, the stopping brake valve is controlled through brake switch; Integrated parking brake function can be controlled stopping brake through an electromagnetic valve, reaches effect simple to operate, easy to connect.
The present invention has guaranteed that car load cuts off power earlier owing to adopt said structure, brakes again, owing to adopt the double loop braking, avoids fluctuation of pressure and brake failure simultaneously, has advantages such as novel structure, safe, high efficiency, braking be steady.
Description of drawings
Fig. 1 is the structure principle chart of background technology.
Fig. 2 is a structure principle chart of the present invention.
Fig. 3 is the structural representation of left threading plate valve.
Fig. 4 is the structural representation of right threading plate valve.
Fig. 5 is the structural representation of prefill valve.
Reference numeral: left threading plate valve 1, right threading plate valve 2, energy storage 3, propons drg 4, back axle drg 5, slow-action valve 6, spool 7, pedal 8, controllable capacity pump quantitative control mouth 9, petrol storage tank 10, spool 11, spool 12, energy storage 13, energy storage 14, petrol storage tank 15, shuttle valve 16, prefill valve 17, brake port 18, hydraulic control mouth 19, stopping brake valve 20.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further specified:
Shown in accompanying drawing; Hydraulic brake system is hung in a kind of freight container front; Be provided with car body; Car body is provided with left threading plate valve 1, right threading plate valve 2, prefill valve 17, energy storage 3, propons drg 4 and back axle drg 5, it is characterized in that right threading plate valve 2 is to be formed in parallel by propons brake circuit and back axle brake circuit, is respectively equipped with treadle valve brake spool 11,12 on propons brake circuit and the back axle brake circuit; One brake spool, 11 oil outlets are connected with propons drg 4; Another brake spool 12 oil outlets are connected with back axle drg 5, and the return opening that is respectively equipped with 13,14, two brake spools 11,12 of energy storage on the oil inlet of two spools is connected with petrol storage tank 15 respectively.Such double-circuit system, when an oil circuit broke down, another oil circuit still can produce brake torque, avoids brake failure, and safety performance is high.Two energy storages 13, be provided with shuttle valve 16 between 14; Be beneficial to the pressure of two energy storages of comparison double loop treadle valve 13,14; The pressure of that energy storage that pressure is low draws gets back to prefill valve 17; Can make prefill valve 17 timely topping ups to guarantee the brake-pressure of two oil circuits respectively like this, reach the effect of safety arrestment.Left threading plate valve 1 is provided with slow-action valve 6, and slow-action valve 6 spools are connected in series with brake spool 7 mutually, and slow-action valve 6 spools upper end is connected with pedal 8; The oil inlet of slow-action valve 6 is connected with controllable capacity pump quantitative control mouth through controllable capacity pump quantitative control mouth 9, and return opening is connected with petrol storage tank 10 so that the slow-action valve can control variable pump servo pressure size; During push down on the pedal 8, a part of power is cut off in slow-action valve 6 action earlier earlier; Brake spool 7 is braked again then, makes car load obtain best braking effect.When stepping on left threading plate valve 1, the oil of left threading plate valve 1 brake port 18 leads to the hydraulic control mouth 19 of right threading plate valve 2, and the simple like this left threading plate valve 1 of stepping on also just is equivalent to step on simultaneously right threading plate valve 2.When running into emergency situation, even chaufeur is stepped on left threading plate valve 1 and right threading plate valve 2 simultaneously, vehicle still relies on the double loop braking of right crus of diaphragm; It is different with right threading plate valve 2 legpowers and produce fluctuation of pressure left threading plate valve 1 can not occur. when stepping on left threading plate valve 1; Can make the controllable capacity pump swash plate return meta earlier, cut off vehicle power earlier, pressure oil is incorporated into right threading plate valve 2 hydraulic control mouths 19; Promote 11 actions of right steps valve core, realize normal brake application.Prefill valve 17 oil outlets are provided with stopping brake valve 20, and prefill valve 17 oil outlets connect the energy storage 3,13,14 of stopping brake valve, left-hand tread plate valve and right-hand tread plate valve respectively.Stopping brake valve 20 is through brake switch control, and integrated parking brake function can be controlled stopping brake through an electromagnetic valve, reaches effect simple to operate, easy to connect.
The present invention is at common glancing impact, only need step on right-hand tread plate valve 2 and get final product, such two independently brake circuit brake different bridges; When loop is damaged or oil circuit when breaking down; Another oil circuit still can make bridge produce brake torque, avoids brake failure, and safety performance is high.When needs during, step on left threading plate valve 1, slow-action valve 6 action earlier slowly near freight container; Make the controllable capacity pump swash plate return meta earlier; Cut off a part of power, braked by brake spool 7 then again, the pressure oil in the left threading plate valve 1 is incorporated into right threading plate valve 2 hydraulic control mouths 19; Promote 11 actions of right threading plate valve 2 spools, realize service brake.Owing to cut off a part of power, make the vehicle can be slowly near freight container.When running into emergency braking; Even chaufeur is stepped on left threading plate valve 1 and right threading plate valve 2 simultaneously; Vehicle still relies on the double loop braking of right crus of diaphragm; It is different with right threading plate valve 2 legpowers and produce fluctuation of pressure left threading plate valve 1 can not occur, and such brake-pressure is steady, and the car brakeing moment of torsion is stable.The pressure of the two-way brake circuit in right threading plate valve 2 is not simultaneously; The pressure that then compares 11,12 two energy storages 13,14 of double loop treadle valve through the shuttle valve in the system 16; The pressure of that energy storage that can pressure is low draws gets back to prefill valve 17; Can make prefill valve 17 timely topping ups to guarantee the safety arrestment pressure of two oil circuits respectively like this, realize the car load safety arrestment.
The present invention has guaranteed that car load cuts off power earlier owing to adopt said structure, brakes again, owing to adopt the double loop braking, avoids fluctuation of pressure and brake failure simultaneously, has advantages such as novel structure, safe, high efficiency, braking be steady.
Claims (1)
1. hydraulic brake system is hung in a freight container front, is provided with car body, and car body is provided with left threading plate valve, right threading plate valve, prefill valve, energy storage, propons drg and back axle drg; It is characterized in that the right threading plate valve is to be formed in parallel by propons brake circuit and back axle brake circuit, be respectively equipped with the treadle valve brake spool on propons brake circuit and the back axle brake circuit, one of which brake spool oil outlet is connected with the propons drg; Another brake spool oil outlet is connected with the back axle drg, is respectively equipped with energy storage on the oil inlet of two spools, and the return opening of two spools is connected with petrol storage tank respectively; Be provided with shuttle valve between two energy storages; The left threading plate valve is provided with the slow-action valve, and the slow-action valve core is connected in series with the brake activation valve spool mutually, and slow-action valve core upper end is connected with pedal; The oil inlet of slow-action valve is connected with controllable capacity pump quantitative control mouth; Return opening is connected with petrol storage tank, and when stepping on the left threading plate valve, the oil of left threading plate valve brake port leads to the hydraulic control mouth of right threading plate valve; The prefill valve oil outlet connects the energy storage of stopping brake valve, left-hand tread plate valve and right-hand tread plate valve respectively, integrated stopping brake valve on the prefill valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110229822 CN102358277B (en) | 2011-08-11 | 2011-08-11 | Hydraulic braking system of container front crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110229822 CN102358277B (en) | 2011-08-11 | 2011-08-11 | Hydraulic braking system of container front crane |
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| CN102358277A true CN102358277A (en) | 2012-02-22 |
| CN102358277B CN102358277B (en) | 2013-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110229822 Active CN102358277B (en) | 2011-08-11 | 2011-08-11 | Hydraulic braking system of container front crane |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105128843A (en) * | 2015-10-16 | 2015-12-09 | 深圳市德塔电动汽车科技有限公司 | Braking hydraulic system |
| CN105221738A (en) * | 2014-05-27 | 2016-01-06 | 约翰迪尔（天津）有限公司 | Gearbox power cutoff control system, hydraulic braking sytem and method, traveling gear |
| CN114537348A (en) * | 2022-01-26 | 2022-05-27 | 山东能源重装集团泰装工程装备制造有限公司 | Braking system of trackless rubber-tyred vehicle |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4037878A (en) * | 1976-05-28 | 1977-07-26 | J. I. Case Company | Vehicle with dual braking systems |
| JPH10157580A (en) * | 1996-12-02 | 1998-06-16 | Komatsu Ltd | Hydraulic retarder device of crane truck |
| JP2001260864A (en) * | 2000-03-17 | 2001-09-26 | Aisin Seiki Co Ltd | Fluid pressure brake device for vehicle |
| CN1461716A (en) * | 2002-05-27 | 2003-12-17 | 株式会社小松制作所 | Emergency brake device of vehicle |
| JP2004130945A (en) * | 2002-10-10 | 2004-04-30 | Tadano Ltd | Traveling brake device of swivel-type working vehicle |
| CN201800704U (en) * | 2010-09-27 | 2011-04-20 | 浙江中铁机车部件有限公司 | Full double-loop brake system |
| CN102094855A (en) * | 2010-12-28 | 2011-06-15 | 徐州重型机械有限公司 | Wheel type engineering machinery hydraulic control system and wheeled crane applying same |
| CN201916262U (en) * | 2010-12-28 | 2011-08-03 | 徐州重型机械有限公司 | Wheel-type engineering plant hydraulic control system and wheel-type crane utilizing same |
| CN202165498U (en) * | 2011-08-11 | 2012-03-14 | 威海人合机电股份有限公司 | Hydraulic brake system for reach stacker of container |
-
2011
- 2011-08-11 CN CN 201110229822 patent/CN102358277B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4037878A (en) * | 1976-05-28 | 1977-07-26 | J. I. Case Company | Vehicle with dual braking systems |
| JPH10157580A (en) * | 1996-12-02 | 1998-06-16 | Komatsu Ltd | Hydraulic retarder device of crane truck |
| JP2001260864A (en) * | 2000-03-17 | 2001-09-26 | Aisin Seiki Co Ltd | Fluid pressure brake device for vehicle |
| CN1461716A (en) * | 2002-05-27 | 2003-12-17 | 株式会社小松制作所 | Emergency brake device of vehicle |
| JP2004130945A (en) * | 2002-10-10 | 2004-04-30 | Tadano Ltd | Traveling brake device of swivel-type working vehicle |
| CN201800704U (en) * | 2010-09-27 | 2011-04-20 | 浙江中铁机车部件有限公司 | Full double-loop brake system |
| CN102094855A (en) * | 2010-12-28 | 2011-06-15 | 徐州重型机械有限公司 | Wheel type engineering machinery hydraulic control system and wheeled crane applying same |
| CN201916262U (en) * | 2010-12-28 | 2011-08-03 | 徐州重型机械有限公司 | Wheel-type engineering plant hydraulic control system and wheel-type crane utilizing same |
| CN202165498U (en) * | 2011-08-11 | 2012-03-14 | 威海人合机电股份有限公司 | Hydraulic brake system for reach stacker of container |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221738A (en) * | 2014-05-27 | 2016-01-06 | 约翰迪尔（天津）有限公司 | Gearbox power cutoff control system, hydraulic braking sytem and method, traveling gear |
| CN105221738B (en) * | 2014-05-27 | 2019-03-15 | 约翰迪尔（天津）有限公司 | Gearbox power cutoff control system, brake fluid system and method, running gear |
| CN105128843A (en) * | 2015-10-16 | 2015-12-09 | 深圳市德塔电动汽车科技有限公司 | Braking hydraulic system |
| CN105128843B (en) * | 2015-10-16 | 2018-05-18 | 深圳市德塔防爆电动汽车有限公司 | Hydraulic braking system |
| CN114537348A (en) * | 2022-01-26 | 2022-05-27 | 山东能源重装集团泰装工程装备制造有限公司 | Braking system of trackless rubber-tyred vehicle |
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| Publication number | Publication date |
|---|---|
| CN102358277B (en) | 2013-08-28 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Hydraulic braking system of container front crane Effective date of registration: 20151116 Granted publication date: 20130828 Pledgee: Weihai commercial bank Limited by Share Ltd Pledgor: Weihai HHH Electromechanical Co., Ltd. Registration number: 2015990001004 |
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Date of cancellation: 20170919 Granted publication date: 20130828 Pledgee: Weihai commercial bank Limited by Share Ltd Pledgor: Weihai HHH Electromechanical Co., Ltd. Registration number: 2015990001004 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Hydraulic braking system of container front crane Effective date of registration: 20170920 Granted publication date: 20130828 Pledgee: Weihai City Commercial Bank Limited by Share Ltd high tech branch Pledgor: Weihai HHH Electromechanical Co., Ltd. Registration number: 2017990000889 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
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Date of cancellation: 20220422 Granted publication date: 20130828 Pledgee: Weihai City Commercial Bank Limited by Share Ltd. high tech branch Pledgor: WEIHAI HHH COOPERATION MACH.&ELEC. CO.,LTD. Registration number: 2017990000889 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Hydraulic braking system of container front crane Effective date of registration: 20220616 Granted publication date: 20130828 Pledgee: Postal Savings Bank of China Limited Weihai Branch Pledgor: WEIHAI HHH COOPERATION MACH.&ELEC. CO.,LTD. Registration number: Y2022980007901 |