CN107559264A - Accumulator flow experimental rig - Google Patents
Accumulator flow experimental rig Download PDFInfo
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- CN107559264A CN107559264A CN201710868552.8A CN201710868552A CN107559264A CN 107559264 A CN107559264 A CN 107559264A CN 201710868552 A CN201710868552 A CN 201710868552A CN 107559264 A CN107559264 A CN 107559264A
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- oil
- valve
- piston
- accumulator
- oil cylinder
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Abstract
The invention belongs to accumulator technology, disclose a kind of accumulator flow experimental rig, including fuel tank and pump assembly, measurement oil cylinder, stop oil cylinder, unloading overflow valve, control valve, first pressure table component, the first magnetic valve, control accumulator, second pressure gauge component and back pressure choke valve；Measure and measurement piston is provided with oil cylinder, measure and displacement transducer is installed on piston；The end of measurement piston is fixed with block, stops and stop piston is provided with oil cylinder, stops that the end of piston is provided with the pin for being used for limit stop movement.The present invention is simple to operate, by setting displacement transducer and pressure gauge component in oil cylinder is measured, can intactly record energy release process, realizes the discharge characteristic detection in energy release process.
Description
Technical field
The invention belongs to accumulator technology, and in particular to a kind of accumulator flow experimental rig.
Background technology
Accumulator is a kind of energy savings device in hydropneumatic system.It is in due course the energy in system
It is changed into compression energy or potential energy stores, is changed into the energy such as hydraulic pressure or air pressure when system needs, and by compression energy or potential energy
Discharged after amount, mend feed system again.When system instantaneous pressure increases, it can absorb the energy of this part, to protect
It is normal to demonstrate,prove whole system pressure.
, it is necessary to test accumulator during the manufacturing of accumulator, it is therefore an objective to ensure the production of accumulator
The working condition of quality and accumulator when in use.
When accumulator works, it can be released energy after accumulation of energy, the process time to release energy is short and instantaneous delivery is big, this
Process process very common and important when being accumulator work.Research is found, in said process, the discharge characteristic of accumulator
It is the important parameter of accumulator, but there is presently no the experiment for measuring discharge characteristic of the accumulator in energy release process
Device.
The content of the invention
It is an object of the invention to provide a kind of accumulator flow experimental rig, can measure accumulator in energy release process
Instantaneous delivery and total flow.
To realize above-mentioned technical purpose, the scheme that the present invention uses is as follows：
A kind of accumulator flow experimental rig, including fuel tank and pump assembly, measurement oil cylinder, stop oil cylinder, unloading overflow valve,
Control valve, first pressure table component, the first magnetic valve, control accumulator, second pressure gauge component and back pressure choke valve；The survey
Measurement piston is provided with gauging cylinder, displacement transducer is installed on the measurement piston；The measurement oil cylinder is measured piston point
For the first oil pocket and the second oil pocket, the fuel tank is by oil circuit connection pump assembly, the unloading overflow valve and for controlling oil circuit
The control valve series connection of break-make is control assembly, and the oil inlet of the control assembly connects the oil-out of pump assembly, the control group
The oil inlet of the oil-out connection first pressure table component of part, the oil-out of the first pressure table component connect the first oil pocket,
First oil pocket connects fuel tank by the first magnetic valve；The second oil pocket connection control accumulator and second pressure gauge group
Part, and be connected by back pressure choke valve with fuel tank；The end of the measurement piston is fixed with block, is provided with the stop oil cylinder
Stop piston, the end for stopping piston is provided with the pin for being used for limit stop movement.
Also include check valve, the check valve is connected between control assembly and first pressure table component.
Also include the first reversal valve, first reversal valve connects the oil-out of fuel tank and unloading overflow valve.
Also include being used to control the second reversal valve for stopping piston movement direction, the stop piston will stop that oil cylinder is divided into
3rd oil pocket and the 4th oil pocket, second reversal valve are 3-position 4-way, and the oil circuit of the pump assembly outlet is sequentially connected second
Reversal valve and the 3rd oil pocket, the 4th oil pocket connect fuel tank by the second reversal valve.
The beneficial effects of the present invention are：
(1) accumulator to be measured access oil circuit can be tested, the position of access be it is adjacent with first pressure table component, it is to be measured
Accumulator is connected with measurement oil cylinder, and displacement transducer and pressure sensor, exergonic process are set in oil cylinder is measured
It completely have recorded, realize and the discharge characteristic in energy release process is detected；
(2) it make use of and stop that oil cylinder fills energy to realize, and control the exergonic time started so that process control
Height, data reliability are strong；
(3) ingenious use the first reversal valve and the second reversal valve so that operating process becomes simple；
(4) control accumulator and back pressure choke valve are make use of, the process to release energy can be adjusted so that experiment
Data are more comprehensively and reliable.
Brief description of the drawings
Fig. 1 is the hydraulic schematic diagram of the present invention.
Label in figure represents respectively：11- fuel tanks, 12- pump assemblys, the reversal valves of 13- first, 14- unloading overflow valves, 15-
Control valve, 16- check valves, 17- accumulators to be measured, 18- first pressure table components, the magnetic valves of 19- first, the reversal valves of 21- second,
22- stops oil cylinder, and 221- stops piston, the oil pockets of 222- the 3rd, the oil pockets of 223- the 4th, 23- pins, 31- measurement oil cylinders, 311- the
One oil pocket, the oil pockets of 312- second, 313- measurements piston, 32- control accumulators, 33- back pressure choke valves, 34- second pressure gauge groups
Part, 35- second solenoid valves, 36- blocks, 37- displacement transducers.
Embodiment
In order that the present invention may be better understood in those skilled in the art, with reference to the accompanying drawings and examples to this hair
Bright technical scheme further illustrates.
A kind of accumulator flow experimental rig, including fuel tank 11 and pump assembly 12, in addition to measurement oil cylinder 31, stop oil cylinder
22nd, unloading overflow valve 14, control valve 15, first pressure table component 18, the first magnetic valve 19, control accumulator 32, second pressure
Table component 34 and back pressure choke valve 33, it, which is measured, is provided with measurement piston 313 in oil cylinder 31, measure and be provided with displacement on piston 313
Sensor 37, measurement oil cylinder are measured piston 313 and divided for the first oil pocket 311 and the second oil pocket；Fuel tank 11 connects pump by oil circuit
Unit 12, the outlet of pump assembly 12 connect unloading overflow valve 14 with oil circuit, and the outlet of unloading overflow valve 14 connects the first reversal valve
13, the outlet of the first reversal valve has two, one of outlet connection fuel tank 11, another outlet pass sequentially through control valve 15,
Be connected after check valve 16, the first oil pocket 311 and the first magnetic valve 19 with fuel tank 11, and the oil pocket 311 of check valve 16 and first it
Between oil circuit be provided with first pressure table component 18.
Second oil pocket 312 passes sequentially through control accumulator 32, back pressure choke valve 33 is connected with fuel tank 11, the second oil pocket 312
Also it is connected with fuel tank 11 by second solenoid valve 35, and is provided with the oil circuit between the second oil pocket 312 and second solenoid valve 35
Second pressure gauge component 34.
Stop to be provided with oil cylinder 22 and stop piston 221, stop that piston 221 will stop that oil cylinder 22 divides for the He of the 3rd oil pocket 222
4th oil pocket 223, stop that the end of piston 221 is provided with pin 23, the end of measurement piston 313 is fixed with block 36, pin 23
It is capable of the movement of limit stop 36 after being moved with stop piston 221.
Second reversal valve 12 is the reversal valve of 3-position 4-way, and the outlet of pump assembly 12 is also connected with the P mouths of the second reversal valve 21,
The T mouths connection fuel tank of second reversal valve 21；The A mouths of second reversal valve 21 are with stopping that the 3rd oil pocket 222 of oil cylinder 22 is connected, second
The B mouths of reversal valve are with stopping that the 4th oil pocket 223 of oil cylinder 22 is connected.
In above-mentioned oil circuit, each settable stop valve in suitable position, to carry out local control to oil circuit.
During experiment, the position that accumulator 17 to be measured accesses is adjacent with first pressure table component 18 so that first pressure table group
Part 18 can accurate response go out the pressure of accumulator 17 to be measured.Pressurising is carried out to accumulator 17 to be measured first, that is, starts pump assembly
12, control valve 15 (i.e. YV2 obtains electric) is opened, the first magnetic valve 19 is closed, is pressurized oil circuit, that is, realizes to accumulator 17 to be measured
Pressurising.In the process, ensure that pin 23 blocks block 36, the measurement piston 313 or so that oil cylinder 31 is measured with limitation moves
It is dynamic.First pressure table component 18 is used for the pressure for showing accumulator to be measured, when pressure reaches test requirements document, by the first reversal valve
13 switch over (YV1 obtains electric), you can moment stops pressurising, and disconnects control valve 15 (i.e. YV2 dead electricity).Now pass through check valve
16 can ensure the pressure stability in accumulator 17 to be measured.Now, you can start detection process, first connect the second reversal valve 21
(YV3 obtains electric), then switch the first reversal valve 13 (i.e. YV1 dead electricity), oil is pressed into resistance by pump assembly 12 by the second reversal valve 21
Keep off in the 4th cavity of oil cylinder 22, make the stop piston 221 of stop oil cylinder 22 and pin 23 while move up, now, pin
23 no longer limit stops 36 move, and accumulator 17 to be measured starts to release energy, and under the effect of the pressure, measure the measurement of oil cylinder 31
Piston 313 slides to the right.In the process, displacement transducer 37 all records the parameter measured when piston 313 moves, and
Import in computer；Second pressure gauge component 34 records pressure parameter simultaneously.Keep second solenoid valve 35 to be in close
State, the hydraulic oil measured in the second oil pocket of oil cylinder 31 flow back to fuel tank 11 after back pressure choke valve 33.During test, pass through adjustment
The preset pressure of the flow of back pressure choke valve 33 and control accumulator 32 is configured to different accumulators to be measured.
Above-mentioned all pressure, flow and displacement parameter, which can be included in computer, to be analyzed and processed, and passes through the second pressure
The instantaneous pressure of the direct reaction energy release process of power table component, by the instantaneous translational speed (displacement transducer for measuring piston
37 records) and the geometric parameter of the second oil pocket can calculate instantaneous delivery in energy release process, it is total by measuring piston
The geometric parameter of displacement and the second oil pocket can calculate the total flow in energy release process, finally give energy release process
The discharge characteristic of accumulator 17 to be measured.
Claims (4)
1. a kind of accumulator flow experimental rig, including fuel tank (11) and pump assembly (12), it is characterised in that：Also include measurement oil
Cylinder (31), stop oil cylinder (22), unloading overflow valve (14), control valve (15), first pressure table component (18), the first magnetic valve
(19) accumulator (32), second pressure gauge component (34) and back pressure choke valve (33), are controlled；It is provided with the measurement oil cylinder (31)
Piston (313) is measured, displacement transducer (37) is installed on the measurement piston (313)；The measurement oil cylinder (31) is measured
Piston (313) is divided into the first oil pocket (311) and the second oil pocket (312), and the fuel tank (11) connects pump assembly (12) by oil circuit,
The unloading overflow valve (14) and for control the control valve (15) of oil circuit break-make series connection be control assembly, the control assembly
The oil-out of oil inlet connection pump assembly (12), the oil-feed of the oil-out connection first pressure table component (18) of the control assembly
Mouthful, the oil-out of the first pressure table component (18) connects the first oil pocket (311), and first oil pocket (311) passes through first
Magnetic valve (19) connection fuel tank (11)；Second oil pocket (312) the connection control accumulator (32) and second pressure gauge component
(34), and by back pressure choke valve (33) with fuel tank (11) it is connected；The end of the measurement piston (313) is fixed with block
(36), it is provided with the stop oil cylinder (22) and stops piston (221), the end for stopping piston (221), which is provided with, is used to limit
The mobile pin (23) of block (36).
2. accumulator flow experimental rig according to claim 1, it is characterised in that：Also include check valve (16), it is described
Check valve (16) is connected between control assembly and first pressure table component (18).
3. accumulator flow experimental rig according to claim 1, it is characterised in that：Also include the first reversal valve (13),
Fuel tank (11) is connected by first reversal valve (13) with the oil-out of unloading overflow valve (14).
4. according to the accumulator flow experimental rig described in claim 1 or 2 or 3, it is characterised in that：Also include being used to control resistance
Second reversal valve (21) of piston (221) direction of motion is kept off, the stop piston (221) will stop that oil cylinder (22) is divided into the 3rd oil
Chamber (222) and the 4th oil pocket (223), second reversal valve (21) are 3-position 4-way, the oil circuit of pump assembly (12) outlet
The second reversal valve (21) and the 3rd oil pocket (222) are sequentially connected, the 4th oil pocket (223) connects fuel tank by the second reversal valve (21)
(11)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710868552.8A CN107559264B (en) | 2017-09-22 | 2017-09-22 | Accumulator flow experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710868552.8A CN107559264B (en) | 2017-09-22 | 2017-09-22 | Accumulator flow experimental rig |
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| Publication Number | Publication Date |
|---|---|
| CN107559264A true CN107559264A (en) | 2018-01-09 |
| CN107559264B CN107559264B (en) | 2019-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710868552.8A Active CN107559264B (en) | 2017-09-22 | 2017-09-22 | Accumulator flow experimental rig |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374814A (en) * | 2018-01-23 | 2018-08-07 | 山河智能装备股份有限公司 | A kind of accumulator testing stand and its control method |
Citations (7)
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| JPH02278137A (en) * | 1989-04-19 | 1990-11-14 | Kobe Steel Ltd | Method and apparatus for testing characteristic of hydraulic valve |
| CN102297181A (en) * | 2010-11-18 | 2011-12-28 | 重庆大学 | Hydraulic control loop of hydraulic system performance test bench of automatic transmission |
| CN202140374U (en) * | 2011-05-05 | 2012-02-08 | 刘瑞川 | Multifunctional fatigue testing machine for energy accumulator |
| CN103018034A (en) * | 2012-12-25 | 2013-04-03 | 青岛四方车辆研究所有限公司 | Car coupler coupling test bed |
| CN203176062U (en) * | 2012-12-26 | 2013-09-04 | 北京林克富华技术开发有限公司 | Safety function detecting device of electrohydraulic actuator |
| CN104048824A (en) * | 2014-07-09 | 2014-09-17 | 安徽江淮汽车股份有限公司 | Performance testing device for driving piston oil seal of dual-clutch transmission |
| CN106762890A (en) * | 2017-01-23 | 2017-05-31 | 中南大学 | A kind of test bed hydraulic control system of multifunction hydraulic |
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2017
- 2017-09-22 CN CN201710868552.8A patent/CN107559264B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02278137A (en) * | 1989-04-19 | 1990-11-14 | Kobe Steel Ltd | Method and apparatus for testing characteristic of hydraulic valve |
| CN102297181A (en) * | 2010-11-18 | 2011-12-28 | 重庆大学 | Hydraulic control loop of hydraulic system performance test bench of automatic transmission |
| CN202140374U (en) * | 2011-05-05 | 2012-02-08 | 刘瑞川 | Multifunctional fatigue testing machine for energy accumulator |
| CN103018034A (en) * | 2012-12-25 | 2013-04-03 | 青岛四方车辆研究所有限公司 | Car coupler coupling test bed |
| CN203176062U (en) * | 2012-12-26 | 2013-09-04 | 北京林克富华技术开发有限公司 | Safety function detecting device of electrohydraulic actuator |
| CN104048824A (en) * | 2014-07-09 | 2014-09-17 | 安徽江淮汽车股份有限公司 | Performance testing device for driving piston oil seal of dual-clutch transmission |
| CN106762890A (en) * | 2017-01-23 | 2017-05-31 | 中南大学 | A kind of test bed hydraulic control system of multifunction hydraulic |
Non-Patent Citations (1)
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| 郭秦阳，施光林，何常玉，王冬梅: "蓄能器变压力供油电液位置控制系统的复合补偿控制", 《液压与气动》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374814A (en) * | 2018-01-23 | 2018-08-07 | 山河智能装备股份有限公司 | A kind of accumulator testing stand and its control method |
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| Publication number | Publication date |
|---|---|
| CN107559264B (en) | 2019-11-26 |
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