CN103935350A - Gas-liquid composite braking structure and mining mechanical vehicle - Google Patents

Gas-liquid composite braking structure and mining mechanical vehicle Download PDF

Info

Publication number
CN103935350A
CN103935350A CN201410151203.0A CN201410151203A CN103935350A CN 103935350 A CN103935350 A CN 103935350A CN 201410151203 A CN201410151203 A CN 201410151203A CN 103935350 A CN103935350 A CN 103935350A
Authority
CN
China
Prior art keywords
brake
gas
vehicle
storage tank
liquid mixed
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.)
Granted
Application number
CN201410151203.0A
Other languages
Chinese (zh)
Other versions
CN103935350B (en
Inventor
陈兵
黄志怀
杨小强
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.)
Sany Heavy Equipment Co Ltd
Original Assignee
Sany Mining Machinery Co Ltd
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 Sany Mining Machinery Co Ltd filed Critical Sany Mining Machinery Co Ltd
Priority to CN201410151203.0A priority Critical patent/CN103935350B/en
Publication of CN103935350A publication Critical patent/CN103935350A/en
Application granted granted Critical
Publication of CN103935350B publication Critical patent/CN103935350B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses a gas-liquid composite braking structure and a mining mechanical vehicle, and belongs to the field of machine manufacturing. The gas-liquid composite braking structure comprises a work brake (1), a brake oil cylinder (2), a gas storage device, a parking brake valve (9), a hydraulic pump (8) and a parking brake (7). The gas storage device is respectively connected with the brake oil cylinder (2) and the parking brake valve (9). The brake oil cylinder (2) is connected with the work brake (1), and the gas storage device drives the brake oil cylinder (2) to convey hydraulic oil to the work brake (1). The gas storage device controls the opening and closing of the parking brake valve (9), the hydraulic pump (8) is connected with the parking brake (7) through the parking brake valve (9), and the parking brake valve (9) controls the on-off states of the hydraulic oil pipeline between the hydraulic pump (8) and the parking brake (7). According to the technical scheme, the production and using cost of a braking system is lowered through gas-liquid composite braking, the whole system can provide strong braking force, and the gas-liquid composite braking structure can be applied to mining vehicles of large tonnage.

Description

A kind of gas-liquid mixed brake structure and mine equipment vehicle
Technical field
The invention belongs to mechanical equipment and manufacture field, relate to a kind of brake system, relate in particular to a kind of gas-liquid mixed brake structure and mine equipment vehicle.
Background technology
Along with development, the automobile of national economy maximizes day by day, intellectuality, quarry tipper is towards the future development of maximization high efficiency for this reason.But no matter brake system is all absolutely necessary on which kind of automobile, on the large-scale mine automobile using now, generally adopt hydraulic brake system, on compact car, generally use pneumatic hydraulic system.The high reaction of hydraulic brake pressure has larger braking force soon, but it is higher that current mine car hydraulic braking element mostly is import overall price, need time-based maintenance to safeguard, the current element maturation of Pneumatic braking system domesticizes, so but the less less full size vehicle that is applied to of the lower braking force of pressure.Therefore, there is following shortcoming in existing traditional hydraulic braking and aerobraking:
1) hydraulic brake system is whole complicated, and cost is higher needs time-based maintenance to safeguard replacing hydraulic oil filter core;
2) Pneumatic braking system is because element limits pressure is lower, and institute's braking force that provides is less.
Summary of the invention
In view of this, the present invention brakes by gas-liquid mixed, has reduced production and the use cost of brake system, and whole system can provide larger braking force simultaneously, can be applicable to large-tonnage mine car.
For achieving the above object, concrete technical scheme is as follows:
On the one hand, a kind of gas-liquid mixed brake structure is provided, be applicable to mine equipment vehicle, comprise service brake, brake cylinder, accumulator unit, braking valve for vehicle, Hydraulic Pump and Parking Brake, described accumulator unit is connected with braking valve for vehicle with described brake cylinder respectively, described brake cylinder is connected with described service brake, described accumulator unit drives described brake cylinder that hydraulic oil is delivered to described service brake, described accumulator unit is controlled the switch of described braking valve for vehicle, described Hydraulic Pump is connected with described Parking Brake by described braking valve for vehicle, described braking valve for vehicle is controlled the break-make of hydraulic circuit between described Hydraulic Pump and described Parking Brake.
Preferably, described accumulator unit comprises storage tank and Air compressor, and described Air compressor is connected with described storage tank, and described storage tank is connected with braking valve for vehicle with described brake cylinder respectively.
Preferably, described accumulator unit also comprises dryer assembly, and described Air compressor is connected with described storage tank by described dryer assembly.
Preferably, between described dryer assembly and storage tank, be also provided with loop protection valve.
Preferably, also comprise parking switch, described storage tank is connected with described braking valve for vehicle by described parking switch.
Preferably, described parking switch is electric-controlled switch.
Preferably, also comprise connected foot brake valves and relay valve, described storage tank is connected with described brake cylinder with relay valve by described foot brake valves successively.
Preferably, the quantity of described storage tank is 2~3.
Preferably, described Hydraulic Pump is also connected with transmission system with lifting control system respectively.
On the other hand, provide a kind of mine equipment vehicle, comprise a kind of gas-liquid mixed brake structure as above.
With respect to prior art, the advantage of technical scheme of the present invention has:
1, adopting gas-liquid mixed brake system to reduce produces and use cost;
2) oil of parking system can also can be used for lifting and transmission system for parking, and a pump is multiplex;
3) simple to operate, whole system can provide larger braking force simultaneously, can be applicable to large-tonnage mine car.
Accompanying drawing explanation
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the structural representation of another embodiment of the present invention.
Wherein, 1 is that service brake, 2 is that brake cylinder, 3 is that relay valve, 4 is that foot brake valves, 5 is that storage tank, 6 parking switchs, 7 are that Parking Brake, 8 is that Hydraulic Pump, 9 is that braking valve for vehicle, 10 is that Air compressor, 11 is that dryer assembly, 12 is loop protection valve.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the present invention can combine mutually.
Below with reference to accompanying drawing, embodiments of the invention are done to concrete explaination.
A kind of gas-liquid mixed brake structure of embodiments of the invention as shown in Figure 1, be applicable to mine equipment vehicle, be applicable to mine equipment vehicle, comprise service brake 1, brake cylinder 2, accumulator unit, braking valve for vehicle 9, Hydraulic Pump 8 and Parking Brake 7.
Accumulator unit is connected with braking valve for vehicle 9 with brake cylinder 2 respectively.Brake cylinder 2 is connected with service brake 1, and accumulator unit drives brake cylinder 2 that hydraulic oil is delivered to service brake 1.Accumulator unit is controlled the switch of braking valve for vehicle 9, and Hydraulic Pump 8 is connected with Parking Brake 7 by braking valve for vehicle 9, and braking valve for vehicle 9 is controlled the break-make of hydraulic circuit between Hydraulic Pump 8 and Parking Brake 7.
Embodiments of the invention are braked by gas-liquid mixed, have reduced production and use cost, and whole system can provide larger braking force simultaneously, can be applicable to large-tonnage mine car.
As shown in fig. 1, in an embodiment of the present invention, accumulator unit comprises storage tank 5, Air compressor 10, dryer assembly 11.Between dryer assembly 11 and storage tank 5, be also provided with loop protection valve 12.
In addition, storage tank 5 is connected with braking valve for vehicle 9 by parking switch 6.Storage tank 5 is connected with brake cylinder 2 with relay valve 3 by foot brake valves 4 successively.
As shown in fig. 1, the mode of operation at embodiments of the invention comprises braking during standstill and service braking.After vehicle launch, Hydraulic Pump 8 is worked respectively with Air compressor 10, and Air compressor 10 is inflated to storage tank 5 by dryer assembly 11, loop protection valve 12, Air compressor off-load when air pressure reaches setting pressure.Hydraulic Pump 8 is to braking valve for vehicle 9 fuel feeding simultaneously to lifting guide or transmission system fuel feeding.
1, braking during standstill is implemented and is removed:
1.1, when braking during standstill is implemented, pressing parking switch 6 makes it at enforcing location, control gas circuit by storage tank 5 to braking valve for vehicle 9 disconnects, braking valve for vehicle 9 is closed, make the high pressure oil of Hydraulic Pump 8 cannot arrive Parking Brake 7, the fluid of Parking Brake 7 is by braking valve for vehicle 9 oil sump tanks, and the moving drg 7 of parking is implemented parking under the effect of contained spring.
1.2, when braking during standstill is removed, pressing parking switch 6 makes it remove position, by storage tank 5, to the control gas circuit of braking valve for vehicle 9, connected, open braking valve for vehicle 9, make the high pressure oil of Hydraulic Pump 8 arrive Parking Brake 7 by braking valve for vehicle 9, the Compress Spring that promotes Parking Brake 7 is removed parking.
2, the enforcement of service braking and releasing
2.1, when implementation is braked by stepping on foot brake valves 4, the output gas circuit that foot brake valves 4 is opened after opening simultaneously acts on relay valve 3, relay valve 3 is opened, the pressurized air of storage tank 5 is applied on brake cylinder 2 by relay valve 3, promote the piston of brake cylinder 2, piston promotes hydraulic oil to service brake 1 implementation braking.
2.2, when removing service braking, unclamp foot brake valves 4, make foot brake valves 4 close relay valve 3 simultaneously, owing to there is no the effect of pilot control gas circuit, relay valve 3 cuts out, the make pressurized air of brake cylinder 2 under the effect of contained spring is discharged in air by relay valve 3, and the fluid of service brake 1 returns to brake cylinder 2, and service brake 1 solves service braking.
In addition, as shown in Figure 2, in an embodiment of the present invention, parking switch 6 is the electric-controlled switch of electromagnetic valve form.The quantity of storage tank 5 is that 3, the quantity of relay valve 3 are 2, makes forward and backward service brake respectively by storage tank 5 air feed independently separately, improves braking effect.In addition, also preferably include emergency stop switch and/or jogging brake switch, make it to possess as functions such as emergency braking jogging brakings.
Embodiments of the invention parking is removed and is adopted Hydraulic Pump fuel feeding to remove, air operated control braking valve for vehicle; Braking valve for vehicle is except return other system fuel feeding such as lifting guide to parking system fuel feeding; Service braking adopts air operated control, and pressurized air promotes brake cylinder, by brake cylinder, exports fluid to drg.
In embodiments of the invention, also comprise a kind of mine equipment vehicle, be provided with a kind of gas-liquid mixed brake structure described above.Because above-mentioned a kind of gas-liquid mixed brake structure has above-mentioned technique effect, therefore, the mine equipment vehicle that is provided with this kind of gas-liquid mixed brake structure also should possess corresponding technique effect, and its specific implementation process is similar to the above embodiments, does not hereby repeat.
Above specific embodiments of the invention be have been described in detail, but it is just as example, the present invention is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that the present invention is carried out and alternative also all among category of the present invention.Therefore, equalization conversion and the modification done without departing from the spirit and scope of the invention, all should contain within the scope of the invention.

Claims (10)

1. a gas-liquid mixed brake structure, be applicable to mine equipment vehicle, it is characterized in that, comprise service brake (1), brake cylinder (2), accumulator unit, braking valve for vehicle (9), Hydraulic Pump (8) and Parking Brake (7), described accumulator unit is connected with braking valve for vehicle (9) with described brake cylinder (2) respectively, described brake cylinder (2) is connected with described service brake (1), described accumulator unit drives described brake cylinder (2) that hydraulic oil is delivered to described service brake (1), described accumulator unit is controlled the switch of described braking valve for vehicle (9), described Hydraulic Pump (8) is connected with described Parking Brake (7) by described braking valve for vehicle (9), described braking valve for vehicle (9) is controlled the break-make of hydraulic circuit between described Hydraulic Pump (8) and described Parking Brake (7).
2. gas-liquid mixed brake structure as claimed in claim 1, it is characterized in that, described accumulator unit comprises storage tank (5) and Air compressor (10), described Air compressor (10) is connected with described storage tank (5), and described storage tank (5) is connected with braking valve for vehicle (9) with described brake cylinder (2) respectively.
3. gas-liquid mixed brake structure as claimed in claim 2, is characterized in that, described accumulator unit also comprises dryer assembly (11), and described Air compressor (10) is connected with described storage tank (5) by described dryer assembly (11).
4. gas-liquid mixed brake structure as claimed in claim 3, is characterized in that, between described dryer assembly (11) and storage tank (5), is also provided with loop protection valve (12).
5. gas-liquid mixed brake structure as claimed in claim 4, is characterized in that, also comprises parking switch (6), and described storage tank (5) is connected with described braking valve for vehicle (9) by described parking switch (6).
6. gas-liquid mixed brake structure as claimed in claim 5, is characterized in that, described parking switch (6) is electric-controlled switch.
7. gas-liquid mixed brake structure as claimed in claim 6, it is characterized in that, also comprise connected foot brake valves (4) and relay valve (3), described storage tank (5) is connected with described brake cylinder (2) with relay valve (3) by described foot brake valves (4) successively.
8. gas-liquid mixed brake structure as claimed in claim 7, is characterized in that, the quantity of described storage tank (5) is 2~3.
9. gas-liquid mixed brake structure as claimed in claim 8, is characterized in that, described Hydraulic Pump (8) is also connected with transmission system with lifting control system respectively.
10. a mine equipment vehicle, is characterized in that, comprises the gas-liquid mixed brake structure as described in claim 1 to 9 any one.
CN201410151203.0A 2014-04-15 2014-04-15 Gas-liquid composite braking structure and mining mechanical vehicle Active CN103935350B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410151203.0A CN103935350B (en) 2014-04-15 2014-04-15 Gas-liquid composite braking structure and mining mechanical vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410151203.0A CN103935350B (en) 2014-04-15 2014-04-15 Gas-liquid composite braking structure and mining mechanical vehicle

Publications (2)

Publication Number Publication Date
CN103935350A true CN103935350A (en) 2014-07-23
CN103935350B CN103935350B (en) 2017-02-01

Family

ID=51183314

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410151203.0A Active CN103935350B (en) 2014-04-15 2014-04-15 Gas-liquid composite braking structure and mining mechanical vehicle

Country Status (1)

Country Link
CN (1) CN103935350B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107472226A (en) * 2017-08-10 2017-12-15 徐州徐工矿山机械有限公司 A kind of quarry tipper air-operated hydraulic brake system
CN107972650A (en) * 2017-08-04 2018-05-01 中国煤炭科工集团太原研究院有限公司 Hydraulic-pneumatic composite braking system for the protection of flame proof rubber tyre vehicle band door
CN109927693A (en) * 2019-04-22 2019-06-25 三一汽车制造有限公司 Braking system and vehicle

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2213890A (en) * 1987-12-11 1989-08-23 Bendix Ltd Vehicle having compressed air and hydraulic operated brakes
CN201677869U (en) * 2010-03-18 2010-12-22 三一重机有限公司 Mining dumper pneumatic brake apparatus
CN201712596U (en) * 2010-05-12 2011-01-19 三一重机有限公司 Parking braking device for mine dump truck
CN102358281A (en) * 2011-08-03 2012-02-22 石家庄中煤装备制造股份有限公司 Parking braking protection system
CN202911727U (en) * 2012-10-12 2013-05-01 龙工(上海)机械制造有限公司 Braking system of wheel loader
CN203805883U (en) * 2014-04-15 2014-09-03 三一矿机有限公司 Gas-liquid composite braking structure and mining mechanical vehicle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2213890A (en) * 1987-12-11 1989-08-23 Bendix Ltd Vehicle having compressed air and hydraulic operated brakes
CN201677869U (en) * 2010-03-18 2010-12-22 三一重机有限公司 Mining dumper pneumatic brake apparatus
CN201712596U (en) * 2010-05-12 2011-01-19 三一重机有限公司 Parking braking device for mine dump truck
CN102358281A (en) * 2011-08-03 2012-02-22 石家庄中煤装备制造股份有限公司 Parking braking protection system
CN202911727U (en) * 2012-10-12 2013-05-01 龙工(上海)机械制造有限公司 Braking system of wheel loader
CN203805883U (en) * 2014-04-15 2014-09-03 三一矿机有限公司 Gas-liquid composite braking structure and mining mechanical vehicle

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
王兴东,等: "气液混合型制动系的执行机构建模试验和仿真", 《汽车工程》 *
陈健: "装载机制动控制系统的研究", 《浙江大学》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107972650A (en) * 2017-08-04 2018-05-01 中国煤炭科工集团太原研究院有限公司 Hydraulic-pneumatic composite braking system for the protection of flame proof rubber tyre vehicle band door
CN107972650B (en) * 2017-08-04 2020-07-03 中国煤炭科工集团太原研究院有限公司 Hydraulic-pneumatic composite braking system with door protection for explosion-proof rubber-tyred vehicle
CN107472226A (en) * 2017-08-10 2017-12-15 徐州徐工矿山机械有限公司 A kind of quarry tipper air-operated hydraulic brake system
CN109927693A (en) * 2019-04-22 2019-06-25 三一汽车制造有限公司 Braking system and vehicle

Also Published As

Publication number Publication date
CN103935350B (en) 2017-02-01

Similar Documents

Publication Publication Date Title
CN107914688B (en) A kind of vehicle gear selecting, stopping brake combination control method
CN201745568U (en) Heavy mineral dump truck brake control system
CN103879394A (en) Stopping brake system of trailer used under coal mine shaft
CN103935350A (en) Gas-liquid composite braking structure and mining mechanical vehicle
CN104061193B (en) The drum brake hydraulic system of multi-axle heavy type engineering machinery
CN103693592A (en) Walking hydraulic system for scissor-type overhead working truck
CN104401306B (en) A kind of Large Electric wheel quarry tipper hydraulic braking controls integrated system
CN203864675U (en) Hydraulic braking system for mining dump trucks
CN102616125B (en) A kind of system and method that hydraulic energy-accumulation hybrid power is provided
CN201753040U (en) Packing case lifting safety control device
CN102562852B (en) Clutch slave cylinder for hybrid electric vehicles
CN203805883U (en) Gas-liquid composite braking structure and mining mechanical vehicle
CN202911727U (en) Braking system of wheel loader
CN202901111U (en) Electronic control pneumatic clutch control device for vehicle
CN204736841U (en) Parking braking system
CN102915049B (en) Compression type garbage truck pressure control device
CN203739872U (en) Integrated braking system of fork truck
CN203819220U (en) Parking brake system of trailer for underground coal mine
CN201089453Y (en) Brake operating device for big power wheeled tractor
CN105221738B (en) Gearbox power cutoff control system, brake fluid system and method, running gear
CN202608756U (en) Hydraulic brake control system of mine dump truck
CN208278039U (en) A kind of wet brake system
CN203611971U (en) Braking system capable of shortening braking reaction time
CN207345785U (en) A kind of intelligent pneumatic power braking system of mining electric locomotive
CN202182209U (en) Three-way valve for industrial and mining locomotive

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
ASS Succession or assignment of patent right

Owner name: SANYI HEAVY-DUTY EQUIPMENT CO., LTD.

Free format text: FORMER OWNER: SANY MINING MACHINERY CO., LTD.

Effective date: 20141210

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 215300 SUZHOU, JIANGSU PROVINCE TO: 110000 SHENYANG, LIAONING PROVINCE

TA01 Transfer of patent application right

Effective date of registration: 20141210

Address after: Yansai Lake Street, Shenyang economic and Technological Development Zone of Liaoning Province, Shenyang City, No. 31, 110000

Applicant after: Sany Heavy Equipment Co.,Ltd.

Address before: Cheng Hu road Kunshan Development Zone in Suzhou City, Jiangsu province 215300 No. 9999 room 18

Applicant before: Sany Mining Machinery Co., Ltd.

C14 Grant of patent or utility model
GR01 Patent grant