CN104019070B - Pressure-maintaining hydraulic system with multistage braking function - Google Patents
Pressure-maintaining hydraulic system with multistage braking function Download PDFInfo
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- CN104019070B CN104019070B CN201410248173.5A CN201410248173A CN104019070B CN 104019070 B CN104019070 B CN 104019070B CN 201410248173 A CN201410248173 A CN 201410248173A CN 104019070 B CN104019070 B CN 104019070B
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Abstract
The invention provides a pressure-maintaining hydraulic system with the multistage braking function. The pressure-maintaining hydraulic system solves the problem that an existing pressure-maintaining hydraulic device does not have the multistage braking function, and comprises an oil tank. An oil supply oil way, a first-stage braking oil way and a second-stage braking oil way are connected to the oil tank. A sucked oil filter, a gear pump, a high-pressure filter, a first one-way valve, a second one-way valve and an oil cylinder are sequentially connected to the oil supply oil way in series. The first-stage braking oil way is divided into two parallel branches. A first overflow valve and a first throttling valve are connected to one of the two parallel branches in series. A second overflow valve is connected to the other one of the two parallel branches in series. The two parallel branches are joined to be connected with a first explosive-proof reversing ball valve in series. The second-stage braking oil way is divided into two parallel branches. A second throttling valve is connected to one of the two parallel branches in series. A third overflow valve is connected to the other one of the two parallel branches in series. The two parallel branches are joined to be sequentially connected with a second explosive-proof reversing ball valve and an energy accumulator in series. The pressure-maintaining hydraulic system has the multistage braking function, the inching-braking speed reduction braking function and the emergency braking function.
Description
Technical field
The invention belongs to technical field of hydraulic equipment, be related to a kind of pressurizer of hydraulic pressure, particularly one kind have multistage
The holding hydraulic pressure system of braking function.
Background technology
Hydraulic system act as by change pressure increase active force.One complete hydraulic system is by five part groups
Become, i.e. dynamical element, executive component, control element, auxiliary element (annex) and hydraulic oil.The quality of one hydraulic system depends on
In the quality of the reasonability of system design, system element performance, the pollution protection of system and processing, and last point is particularly heavy
Will.
Existing holding hydraulic pressure device does not enable multistage brake operation, therefore under hypervelocity, power-off or other crisis situations, no
A little stop deceleration or emergency braking function can be carried out, thus existing holding hydraulic pressure device has larger potential safety hazard.
Content of the invention
The purpose of the present invention be there are the problems referred to above for existing technology it is proposed that a kind of by arrange pressurize integrated with
Multistage brake is expanded integrated, and arranges both cooperation, has multistage brake function with realize multistage brake pressurize operation
Holding hydraulic pressure system.
The purpose of the present invention can be realized by following technical proposal: a kind of holding hydraulic pressure system with multistage brake function
System, including fuel tank, described fuel tank is connected with oil feeding line, one-level brake circuit and two stage braking oil circuit, on described oil feeding line
Sequentially concatenation oil absorption filter, gear pump, high pressure filter, the first check valve, the second check valve and oil cylinder；Described one-level braking
Oil circuit bifurcated goes out two parallel branches, and a parallel branch concatenates the first overflow valve and first throttle valve, and another parallel connection is propped up
Second overflow valve is concatenated on road, two parallel branches concatenate the first flame proof reversing globe valve after collecting；Described two stage braking oil circuit divides
Pitch out two parallel branches, a parallel branch concatenate second throttle, another article of parallel branch concatenates the 3rd overflow valve,
Article two, after parallel branch collects, sequentially concatenate the second flame proof reversing globe valve, accumulator；Described oil feeding line, one-level brake circuit with
The end of two stage braking oil circuit forms the connected state mutually crossing, the end concatenation pressure of described connection oil circuit by connecting oil circuit
Power table and pressure sensor.
Originally have in the holding hydraulic pressure system of multistage brake function, the first check valve is tubular type check valve；Second check valve
For angle one-way valve.First flame proof reversing globe valve and the second flame proof reversing globe valve are bi-bit bi-pass flame proof reversing globe valve.
The course of work originally with the holding hydraulic pressure system of multistage brake function is:
1) brake declutch, pressure maintaining period；
First flame proof reversing globe valve and the second flame proof reversing globe valve obtain electric so that one-level brake circuit and two stage braking oil circuit
Closing；Motor obtains electric drive gear pump work, by this hydraulic oil sequentially through oil absorption filter, gear pump, high pressure filter, the
After one check valve and the second check valve, simultaneously enter oil cylinder and accumulator via connection oil circuit, and pressure shown by pressure gauge,
Cylinder movement, promotes the brake of disc type to declutch；Through pressure sensor detection, after reaching operating pressure, electric-control system manipulation electricity
Machine power-off, now, obtains by the first flame proof reversing globe valve and the second flame proof reversing globe valve electric, and coordinates accumulator to carry out pressurize, by
This pressurize operation completes.
2) brake, multistage brake process；
Automatically controlled signal is sent by electric-control system, makes the first flame proof reversing globe valve power-off restoration, and then turn on one-level braking
Oil circuit, under the active force of back-moving spring, hydraulic pressure is down to set pressure through the second overflow valve by hydraulic oil, and then hydraulic oil is again
Through first throttle valve, hydraulic pressure is made to be down to the set pressure of the first overflow valve, total system is during carrying out one-level braking
There is the time difference of 1 to 8s, and this time can adjust according to demand；Then two stage braking, the second flame proof reversing globe valve power-off are carried out
Reset, and then turn on two stage braking oil circuit, hydraulic oil is back in fuel tank, now after the 3rd overflow valve, second throttle
Pressure release completes, brake, equipment downtime.
In the above-mentioned holding hydraulic pressure system with multistage brake function, described oil feeding line is also associated with manually
Pump, described manual pump with gear pump phase and connects.Automatic loop is formed by gear pump, manually pump forms manual loop.?
In emergency circumstances, manually operate manual pump, carry out meeting an urgent need and open a sluice gate function, to improve the safety operation control of whole machine.
In the above-mentioned holding hydraulic pressure system with multistage brake function, described oil feeding line also branches out oil overflow
Road, described overflow oil circuit concatenates the 4th overflow valve, the end connection overflow oil box of described overflow oil circuit.Liquid in oil feeding line
Force feed, before entering the second check valve, first passes through the 4th overflow valve and then hydraulic pressure is adjusted to operating pressure.
In the above-mentioned holding hydraulic pressure system with multistage brake function, described gear pump is connected by Motor drive.
In the above-mentioned holding hydraulic pressure system with multistage brake function, described fuel tank arranges air cleaner, institute
State the intracavity inter-connection of air cleaner and fuel tank.
In the above-mentioned holding hydraulic pressure system with multistage brake function, described fuel tank arranges liquid temperature liquid level gauge.
In the above-mentioned holding hydraulic pressure system with multistage brake function, the bottom setting draining valve of described fuel tank.
Compared with prior art, originally having the holding hydraulic pressure system of multistage brake function, to be mainly used in ribbon conveyer low
In the hydraulic control of fast brake, it has the function of multistage brake；Have in an overspeed situation, put retarding braking function of stopping；
There is emergency braking function；There is unexpected power-off brake function.This system architecture is compact, fuel tank small volume, by filter and storage
Device can be integrated on valve body, and fuel-efficient, power saving, adjustability are good, are active in one's movements, good stability, lightweight and be easy to move, system
The few temperature rise of heating is low, and fluid oxidation makes the drain period of hydraulic oil extend slowly, and the consumption of hydraulic oil reduces.In emergency
Under, also by using manual pump, so that equipment is had and emergent open a sluice gate function.
Brief description
Fig. 1 is the perspective view of the holding hydraulic pressure system originally with multistage brake function.
Fig. 2 is the overlooking the structure diagram of the holding hydraulic pressure system originally with multistage brake function.
Fig. 3 is the oil channel structures schematic diagram of the holding hydraulic pressure system originally with multistage brake function.
In figure, 1, fuel tank；2nd, oil feeding line；3rd, oil absorption filter；4th, motor；5th, gear pump；6th, high pressure filter；7th,
One check valve；8th, the 4th overflow valve；9th, overflow oil box；10th, the second check valve；11st, oil cylinder；12nd, manual pump；13rd, one-level braking
Oil circuit；14th, the first overflow valve；15th, first throttle valve；16th, the second overflow valve；17th, the first flame proof reversing globe valve；18th, two-stage system
Dynamic oil circuit；19th, second throttle；20th, the 3rd overflow valve；21st, the second flame proof reversing globe valve；22nd, accumulator；23rd, connect oil circuit；
24th, pressure gauge；25th, pressure sensor；26th, air cleaner；27th, liquid temperature liquid level gauge；28th, draining valve.
Specific embodiment
The following is the specific embodiment of the present invention and combine accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
As shown in Figure 1,2 and 3, the holding hydraulic pressure system originally with multistage brake function includes fuel tank 1, and fuel tank 1 is connected with
Oil feeding line 2, one-level brake circuit 13 and two stage braking oil circuit 18.
Oil absorption filter 3, gear pump 5, high pressure filter 6, first check valve the 7, second list are sequentially concatenated on oil feeding line 2
To valve 10 and oil cylinder 11, wherein gear pump 5 is by motor 4 drive connection.First check valve 7 is tubular type check valve；Second check valve
10 is angle one-way valve.
Manual pump 12 is also associated with oil feeding line 2, and manual pump 12 mutually and is connect with gear pump 5.Formed by gear pump 5
Automatic loop, manually pump 12 formation manual loop.In case of emergency, artificial operation manual pump 12, carries out emergent opening a sluice gate
Function, to improve the safety operation control of whole machine.
Overflow oil circuit is also branched out on oil feeding line 2, oil feeding line 2 before the second check valve 10 for the overflow oil circuit divides
Prop up out.4th overflow valve 8, the end connection overflow oil box 9 of overflow oil circuit are concatenated on this overflow oil circuit.
One-level brake circuit 13 bifurcated goes out two parallel branches, and a parallel branch concatenates the first overflow valve 14 and first
Choke valve 15, another parallel branch concatenates the second overflow valve 16, and two parallel branches concatenate the first flame proof commutation after collecting
Ball valve 17.Two stage braking oil circuit 18 bifurcated goes out two parallel branches, concatenation second throttle 19 in a parallel branch, another
3rd overflow valve 20 is concatenated on parallel branch, two parallel branches sequentially concatenate the second flame proof reversing globe valve 21, accumulation of energy after collecting
Device 22.First flame proof reversing globe valve 17 and the second flame proof reversing globe valve 21 are bi-bit bi-pass flame proof reversing globe valve.
Oil feeding line 2, one-level brake circuit 13 are formed mutually by connecting oil circuit 23 with the end of two stage braking oil circuit 18
The connected state crossing, end concatenation pressure gauge 24 and the pressure sensor 25 of this connection oil circuit 23.
Air cleaner 26 is arranged on fuel tank 1, the intracavity inter-connection of this air cleaner 26 and fuel tank 1.Arrange on fuel tank 1
Liquid temperature liquid level gauge 27.The bottom setting draining valve 28 of fuel tank 1.
The course of work originally with the holding hydraulic pressure system of multistage brake function is:
1) brake declutch, pressure maintaining period；
First flame proof reversing globe valve 17 and the second flame proof reversing globe valve 21 electric so that one-level brake circuit 13 and two-stage system
Dynamic oil circuit 18 is closed；Motor 4 electric drive gear pump 5 work, by this hydraulic oil sequentially through oil absorption filter 3, gear pump 5,
High pressure filter 6, the first check valve 7, before hydraulic oil enters the second check valve 10, first pass through the 4th overflow valve 8 and then incite somebody to action
Hydraulic pressure is adjusted to operating pressure, subsequently passes through the second check valve 10, finally simultaneously enters oil cylinder 11 and accumulation of energy via connection oil circuit 23
Device 22, and pressure is shown by pressure gauge 24, oil cylinder 11 moves, and promotes the brake of disc type to declutch；Examine through pressure sensor 25
Survey, after reaching operating pressure, electric-control system manipulates motor 4 power-off, now, changes by the first flame proof reversing globe valve 17 and the second flame proof
Obtain to ball valve 21 electric, and coordinate accumulator 22 to carry out pressurize, operated by this pressurize and complete.
2) brake, multistage brake process；
Automatically controlled signal is sent by electric-control system, makes the first flame proof reversing globe valve 17 power-off restoration, and then turn on one-level system
Dynamic oil circuit 13, under the active force of back-moving spring, hydraulic pressure is down to set pressure through the second overflow valve 16 by hydraulic oil, then liquid
Force feed, again through first throttle valve 15, makes hydraulic pressure be down to the set pressure of the first overflow valve 14, total system is carrying out one-level system
There is the time difference of 1 to 8s in dynamic process, and this time can adjust according to demand；Then carry out two stage braking, the second flame proof changes
To ball valve 21 power-off restoration, and then turn on two stage braking oil circuit 18, hydraulic oil is after the 3rd overflow valve 20, second throttle 19
It is back in fuel tank 1, now pressure release completes, brake, equipment downtime.
The holding hydraulic pressure system originally with multistage brake function is mainly used in the hydraulic pressure of ribbon conveyer low brake
In control, it has the function of multistage brake；Have in an overspeed situation, put retarding braking function of stopping；There is brake hard work(
Energy；There is unexpected power-off brake function.This system architecture is compact, fuel tank 1 small volume, filter and accumulator 22 are integrated in valve
On body and fuel-efficient, power saving, adjustability are good, are active in one's movements, good stability, lightweight and be easy to move, the few temperature rise of system heat generation
Low, fluid oxidation makes the drain period of hydraulic oil extend slowly, and the consumption of hydraulic oil reduces.In case of emergency, also by making
With manual pump 12, so that equipment is had and emergent open a sluice gate function.
Specific embodiment described herein is only explanation for example to present invention spirit.The affiliated technology of the present invention is led
The technical staff in domain can be made various modifications or supplement or replaced using similar mode to described specific embodiment
Generation, but the spirit without departing from the present invention or surmount scope defined in appended claims.
Although more employing fuel tank 1 herein；Oil feeding line 2；Oil absorption filter 3；Motor 4；Gear pump 5；Height presses through
Filter 6；First check valve 7；4th overflow valve 8；Overflow oil box 9；Second check valve 10；Oil cylinder 11；Manual pump 12；One-level is braked
Oil circuit 13；First overflow valve 14；First throttle valve 15；Second overflow valve 16；First flame proof reversing globe valve 17；Two stage braking oil circuit
18；Second throttle 19；3rd overflow valve 20；Second flame proof reversing globe valve 21；Accumulator 22；Connection oil circuit 23；Pressure gauge 24；
Pressure sensor 25；Air cleaner 26；Liquid temperature liquid level gauge 27；Draining valve 28 grade term, but be not precluded from using other terms
Possibility.It is used for the purpose of more easily describing and explaining the essence of the present invention using these terms；It is construed as appointing
A kind of what additional restriction is all contrary with spirit of the present invention.
Claims (2)
1. a kind of holding hydraulic pressure system with multistage brake function, including fuel tank it is characterised in that described fuel tank is connected with confession
Oil circuit, one-level brake circuit and two stage braking oil circuit, described oil feeding line sequentially concatenates oil absorption filter, gear pump, height
Press through filter, the first check valve, the second check valve and oil cylinder；Described one-level brake circuit bifurcated goes out two parallel branches, one
First overflow valve and first throttle valve are concatenated on parallel branch, another parallel branch concatenates the second overflow valve, two parallel connections
Branch road concatenates the first flame proof reversing globe valve after collecting；Described two stage braking oil circuit bifurcated goes out two parallel branches, and a parallel connection is propped up
Concatenate second throttle on road, another article of parallel branch concatenates the 3rd overflow valve, two parallel branches sequentially concatenate after collecting
Second flame proof reversing globe valve, accumulator；Described oil feeding line, one-level brake circuit pass through to connect with the end of two stage braking oil circuit
Oil circuit forms the connected state mutually crossing, the end concatenation pressure gauge of described connection oil circuit and pressure sensor；Described fuel feeding
It is also associated with manual pump, described manual pump with gear pump phase and connects on oil circuit；Overflow oil circuit is also branched out on described oil feeding line,
4th overflow valve, the end connection overflow oil box of described overflow oil circuit are concatenated on described overflow oil circuit；Arrange empty on described fuel tank
The intracavity inter-connection of air filter, described air cleaner and fuel tank；Liquid temperature liquid level gauge is arranged on described fuel tank；Described fuel tank
Bottom arranges draining valve.
2. the holding hydraulic pressure system with multistage brake function according to claim 1 is it is characterised in that described gear pump
Connected by Motor drive.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410248173.5A CN104019070B (en) | 2014-06-06 | 2014-06-06 | Pressure-maintaining hydraulic system with multistage braking function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410248173.5A CN104019070B (en) | 2014-06-06 | 2014-06-06 | Pressure-maintaining hydraulic system with multistage braking function |
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| Publication Number | Publication Date |
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| CN104019070A CN104019070A (en) | 2014-09-03 |
| CN104019070B true CN104019070B (en) | 2017-01-18 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016080084A (en) * | 2014-10-17 | 2016-05-16 | 三菱重工業株式会社 | Follow-up pressure device, machine tool and operational method for follow-up pressure device at machine tool |
| CN106144937B (en) * | 2016-08-16 | 2019-02-05 | 武汉船用机械有限责任公司 | Band brake hydraulic emergency system |
| CN108286536A (en) * | 2018-01-19 | 2018-07-17 | 天津铁路信号有限责任公司 | A kind of railway stop hydraulic station |
| CN110282353B (en) * | 2019-06-06 | 2024-06-07 | 山东科技大学 | Flexible braking hydraulic system for long-distance conveyor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1511164A1 (en) * | 1988-01-18 | 1989-09-30 | Предприятие П/Я М-5903 | Hydraulic brake vehicle system |
| CN2168986Y (en) * | 1992-08-28 | 1994-06-15 | 孔繁华 | Normally closed multi-stage bralce |
| CN201982386U (en) * | 2011-03-17 | 2011-09-21 | 包继华 | Novel dwell hydraulic station for disc brake |
| CN202790241U (en) * | 2012-08-16 | 2013-03-13 | 山东科大机电科技有限公司 | Hydraulic system used for disc-type brake and hydraulic station used for disc-type brake |
| CN102913575B (en) * | 2012-10-18 | 2015-04-08 | 长沙正忠科技发展有限公司 | Novel safety brake hydraulic system for mining cableway |
| CN203021245U (en) * | 2013-01-08 | 2013-06-26 | 湘煤立达矿山装备股份有限公司 | Mine hoisting machine braking hydraulic pressure station capable of switching primary braking oil pressure |
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Address after: 272103 Industrial Zone, Wang Yuan hi tech Zone, Shandong, Jining Applicant after: Shandong Keda Electrical Technology Co., Ltd. Address before: 272103 Industrial Zone, Wang Yuan hi tech Zone, Shandong, Jining Applicant before: Shandong Keda M&E Technology Co., Ltd. |
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