CN210343893U - Hydraulic system regeneration flow testing arrangement - Google Patents
Hydraulic system regeneration flow testing arrangement Download PDFInfo
- Publication number
- CN210343893U CN210343893U CN201920219397.1U CN201920219397U CN210343893U CN 210343893 U CN210343893 U CN 210343893U CN 201920219397 U CN201920219397 U CN 201920219397U CN 210343893 U CN210343893 U CN 210343893U
- Authority
- CN
- China
- Prior art keywords
- oil
- valve
- hydraulic
- hydraulic pump
- oil cylinder
- 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.)
- Active
Links
- 230000008929 regeneration Effects 0.000 title claims abstract description 44
- 238000011069 regeneration method Methods 0.000 title claims abstract description 44
- 238000012360 testing method Methods 0.000 title claims abstract description 35
- 239000003921 oil Substances 0.000 claims abstract description 98
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 18
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
Images
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model belongs to the technical field of hydraulic pressure test, a hydraulic system regeneration flow testing arrangement is related to, including flow regeneration system and loading system, flow regeneration system includes first hydraulic pump, is surveyed valve and working cylinder, hydraulic oil in first hydraulic pump with the oil tank provides working cylinder through being surveyed the valve, and the hydraulic oil that gets into working cylinder gets back to the oil tank through being surveyed the valve again, and working cylinder's piston both ends are through being surveyed the one-way intercommunication of valve, realize flow regeneration, first hydraulic pump accesss to and is equipped with first flowmeter on the oil circuit of being surveyed the valve, is equipped with the second flowmeter on the oil circuit that is accesss to working cylinder by the measuring valve. The utility model can be applied to the flow regeneration test of the bucket rod oil cylinder of the excavator and can also be applied to other engineering machinery working oil cylinders needing to set flow regeneration; to sum up, the utility model has the advantages of simple structure, reliable and stable, economical and practical have very big market value, are worth extensively popularizing and applying.
Description
Technical Field
The utility model belongs to the technical field of hydraulic pressure test, concretely relates to hydraulic system regeneration flow testing arrangement.
Background
The regeneration function of a hydraulic system of an excavator basically belongs to standard configuration, the quantity of regeneration flow in the design process of a multi-way valve is an important performance parameter, the practical design work is an adjustment optimization process combining product design theory calculation and experimental data, in order to shorten the development period and verify the accuracy of the design parameters, a hydraulic test bench is an essential tool in the product development stage, no special equipment for checking the regeneration function exists in the existing market, the patent makes up the vacancy, the test accuracy of the test bench is considered, the test bench needs to be designed by simulating the actual working condition, meanwhile, innovation is carried out, variable load is increased, the test bench is designed into a universal type, the application range of the test bench is expanded, and the hydraulic system is suitable for the test of the regeneration valves with various flow characteristics.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defect and not enough that exist among the prior art, provide a simple structure, convenient operation, application scope is wide, can maintain hydraulic oil highly clean hydraulic system regeneration flow testing arrangement.
In order to achieve the above object, the utility model adopts the following technical scheme: a hydraulic system regeneration flow testing device comprises a flow regeneration system and a loading system, wherein the flow regeneration system comprises a first hydraulic pump, a tested valve and a working oil cylinder, the first hydraulic pump supplies hydraulic oil in an oil tank to the working oil cylinder through the tested valve, the hydraulic oil entering the working oil cylinder returns to the oil tank through the tested valve, two ends of a piston of the working oil cylinder are communicated in a one-way mode through the tested valve to realize flow regeneration, a first flowmeter is arranged on an oil way of the first hydraulic pump leading to the tested valve, and a second flowmeter is arranged on an oil way of the tested valve leading to the working oil cylinder;
the loading system comprises a second hydraulic pump, a control valve and a loading oil cylinder, the second hydraulic pump supplies hydraulic oil in an oil tank to the loading oil cylinder through the control valve, the telescopic end of the loading oil cylinder is connected with the working end of the working oil cylinder, a displacement sensor is connected between the telescopic end of the loading oil cylinder and the working end of the working oil cylinder, an overflow valve is connected between the control valve and the loading oil cylinder in parallel, and the overflow valve is communicated with the oil tank;
the device still includes clean circulation system, clean circulation system includes the third hydraulic pump, the third hydraulic pump both ends all communicate with the oil tank, and the third hydraulic pump both ends all are equipped with the filter.
Preferably, a first pressure sensor is arranged on an oil way of the working oil cylinder leading to the measured valve, and a second pressure sensor is arranged on an oil way of the measured valve leading to the working oil cylinder.
Preferably, the loading direction of the loading oil cylinder is opposite to the working direction of the working oil cylinder.
Preferably, safety valves are arranged in parallel between the first hydraulic pump and the tested valve and between the second hydraulic pump and the control valve, and the overflow valves are communicated with the safety valves.
Preferably, the first and second hydraulic pumps are both variable displacement pumps.
Preferably, oil suction filters are arranged between the first hydraulic pump and the oil tank and between the second hydraulic pump and the oil tank.
Preferably, the oil tank is also connected with an auxiliary system.
After the technical scheme is adopted, the utility model discloses following beneficial effect has:
the utility model provides a pair of hydraulic system regeneration flow testing arrangement can test the regenerated flow of the case switching-over process of being surveyed the valve to, go back the load operating condition that can pass through loading system initiative simulation work hydro-cylinder, through the flow control of variable discharge capacity hydraulic pump to and pressure sensor is to pressure real-time supervision, can adjust the flow in real time and can prevent the suction phenomenon again, the regeneration flow in the test work hydro-cylinder more comprehensively accurately.
The utility model can be applied to the flow regeneration test of the bucket rod oil cylinder of the excavator and can also be applied to other engineering machinery working oil cylinders needing to set flow regeneration; to sum up, the utility model has the advantages of simple structure, reliable and stable, economical and practical have very big market value, are worth extensively popularizing and applying.
Drawings
Fig. 1 is a schematic structural diagram of a hydraulic system regeneration flow rate testing device of the present invention;
fig. 2 is a schematic diagram of the flow of hydraulic oil when the tested valve of the present invention is in regeneration.
Wherein: the hydraulic control system comprises a first hydraulic pump 1, a measured valve 2, a working oil cylinder 3, a first flow meter 4, a second flow meter 5, a second hydraulic pump 6, a control valve 7, a loading oil cylinder 8, a displacement sensor 9, an overflow valve 10, a third hydraulic pump 11, a filter 12, a first pressure sensor 13, a second pressure sensor 14, a safety valve 15, an oil suction filter 16 and an auxiliary system 17.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1-2, the present embodiment provides a regenerative flow testing device for a hydraulic system, including a flow regeneration system and a loading system, where the flow regeneration system includes a first hydraulic pump 1, a measured valve 2 and a working cylinder 3, the first hydraulic pump 1 supplies hydraulic oil in an oil tank 4 to the working cylinder 3 through the measured valve 2, the hydraulic oil entering the working cylinder 3 returns to the oil tank 4 through the measured valve 2, two ends of a piston of the working cylinder 3 are communicated in a one-way manner through the measured valve 2, so as to implement flow regeneration, a first flow meter 4 is disposed on an oil path leading to the measured valve 2 from the first hydraulic pump 1, and a second flow meter 5 is disposed on an oil path leading to the working cylinder 3 from the measured valve 2;
the loading system comprises a second hydraulic pump 6, a control valve 7 and a loading oil cylinder 8, the second hydraulic pump 6 supplies hydraulic oil in the oil tank 4 to the loading oil cylinder 8 through the control valve 7, the telescopic end of the loading oil cylinder 8 is connected with the working end of the working oil cylinder 3, a displacement sensor 9 is further connected between the telescopic end of the loading oil cylinder 8 and the working end of the working oil cylinder 3, an overflow valve 10 is connected in parallel between the control valve 7 and the loading oil cylinder 8, and the overflow valve 10 is communicated with the oil tank 4;
the device still includes clean circulation system, clean circulation system includes third hydraulic pump 11, 11 both ends of third hydraulic pump all communicate with oil tank 4, and 11 both ends of third hydraulic pump all are equipped with filter 12, filter 12 sets up on the oil circuit between third hydraulic pump 11 and oil tank 4 for carry out the loop filter to hydraulic oil, guarantee its cleanliness.
The hydraulic control system comprises a working oil cylinder 3, a tested valve 2, a first pressure sensor 13, a second pressure sensor 14, a safety valve 15, an overflow valve 10, a control valve 7, a first hydraulic pump 1 and a second hydraulic pump 6, an oil suction auxiliary system 17 and an oil suction filter 16, wherein the first pressure sensor 13 is arranged on an oil path of the working oil cylinder 3, the second pressure sensor 14 is arranged on an oil path of the tested valve 2, the first pressure sensor 13 and the second pressure sensor 14 are used for calibrating load, the loading direction of a loading oil cylinder 8 is opposite to the working direction of the working oil cylinder 3, the safety valves 15 are arranged between the first hydraulic pump 1 and the tested valve 2 and between the second hydraulic pump 6 and the control valve 7 in parallel, the overflow valve 10 is communicated with the safety valve 15.
The utility model relates to a hydraulic system regeneration flow testing arrangement when using, requires to adjust 6 flows (control cylinder speed) of second hydraulic pump according to operating condition and makes 8 left sides of loading cylinder move, and the motion of promotion working cylinder 3, the promotion speed simulation in-service use speed that flow output provided are by the switching-over of test valve 2 and control valve 7, and the 2 case of test valve are in regeneration position, and the flow direction of hydraulic oil is as shown in figure 2.
The hydraulic oil of the flow regeneration system is pumped into the working oil cylinder 3 through the first hydraulic pump 1, a piston rod of the working oil cylinder is pushed to move, one part of the hydraulic oil flows back to the oil tank 4 through the tested valve 2, the other part of the hydraulic oil circularly flows into the working oil cylinder 3 through the tested valve 2, the first flow meter 4 and the second flow meter 5 acquire flow signals, the flow of the second flow meter 5 minus the flow of the first flow meter 4 is the regenerated flow of the tested valve 2, and the stability of the product can be judged according to the measured regeneration flow.
The first pressure sensor 13 and the second pressure sensor 14 are used for calibrating loads, when the loads are different, the pressure measured by the first pressure sensor 13 is different, the pressure at the position of the first pressure sensor 13 can reach a theoretical value by adjusting the flow of the second hydraulic pump 6, at the moment, whether the moving speed of the oil cylinder is within a design required range is checked through the displacement sensor 9, if the moving speed exceeds the design required range, the valve 2 to be measured needs to be designed, meanwhile, the pressure at the position of the second pressure sensor 14 is checked, if the pressure is lower than a required value, suction emptying possibly exists in a system, the valve 2 to be measured needs to be improved and designed, and therefore the stability and the reliability of the valve 2 to be measured after the test can be guaranteed.
To sum up, the utility model provides a hydraulic system regeneration flow testing arrangement, not only can be applied to the bucket rod hydro-cylinder flow regeneration test of excavator, still can be used to other engineering machine tool working cylinder that need to set up flow regeneration; to sum up, the utility model has the advantages of simple structure, reliable and stable, economical and practical have very big market value, are worth extensively popularizing and applying.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides a hydraulic system regeneration flow testing arrangement, includes flow regeneration system and loading system, its characterized in that:
the flow regeneration system comprises a first hydraulic pump (1), a measured valve (2) and a working oil cylinder (3), hydraulic oil in the oil tank is supplied to the working oil cylinder (3) through the measured valve (2) by the first hydraulic pump (1), the hydraulic oil entering the working oil cylinder (3) returns to the oil tank through the measured valve (2), two ends of a piston of the working oil cylinder (3) are communicated in a one-way mode through the measured valve (2) to realize flow regeneration, a first flow meter (4) is arranged on an oil way of the first hydraulic pump (1) leading to the measured valve (2), and a second flow meter (5) is arranged on an oil way of the measured valve (2) leading to the working oil cylinder (3);
the loading system comprises a second hydraulic pump (6), a control valve (7) and a loading oil cylinder (8), the second hydraulic pump (6) supplies hydraulic oil in the oil tank to the loading oil cylinder (8) through the control valve (7), the telescopic end of the loading oil cylinder (8) is connected with the working end of the working oil cylinder (3), a displacement sensor (9) is further connected between the telescopic end of the loading oil cylinder (8) and the working end of the working oil cylinder (3), an overflow valve (10) is connected in parallel between the control valve (7) and the loading oil cylinder (8), and the overflow valve (10) is communicated with the oil tank;
the device still includes clean circulation system, clean circulation system includes third hydraulic pump (11), third hydraulic pump (11) both ends all communicate with the oil tank, and third hydraulic pump (11) both ends all are equipped with filter (12).
2. The hydraulic system regeneration flow rate testing device according to claim 1, wherein: and a first pressure sensor (13) is arranged on an oil way of the working oil cylinder (3) leading to the tested valve (2), and a second pressure sensor (14) is arranged on an oil way of the tested valve (2) leading to the working oil cylinder (3).
3. The hydraulic system regeneration flow rate testing device according to claim 1, wherein: the loading direction of the loading oil cylinder (8) is opposite to the working direction of the working oil cylinder (3).
4. The hydraulic system regeneration flow rate testing device according to claim 1, wherein: safety valves (15) are arranged in parallel between the first hydraulic pump (1) and the tested valve (2) and between the second hydraulic pump (6) and the control valve (7), and the overflow valve (10) is communicated with the safety valves (15).
5. The hydraulic system regeneration flow rate testing device according to claim 1, wherein: the first hydraulic pump (1) and the second hydraulic pump (6) are both variable displacement pumps.
6. The hydraulic system regeneration flow rate testing device according to claim 1, wherein: an oil suction filter (16) is arranged between the first hydraulic pump (1) and the oil tank and between the second hydraulic pump (6) and the oil tank.
7. The hydraulic system regeneration flow rate testing device according to claim 1, wherein: the oil tank is also connected with an auxiliary system (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920219397.1U CN210343893U (en) | 2019-02-21 | 2019-02-21 | Hydraulic system regeneration flow testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920219397.1U CN210343893U (en) | 2019-02-21 | 2019-02-21 | Hydraulic system regeneration flow testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210343893U true CN210343893U (en) | 2020-04-17 |
Family
ID=70173412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920219397.1U Active CN210343893U (en) | 2019-02-21 | 2019-02-21 | Hydraulic system regeneration flow testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210343893U (en) |
-
2019
- 2019-02-21 CN CN201920219397.1U patent/CN210343893U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204716667U (en) | The Development of Hydraulic Synthetic Test-bed of servovalve dynamic and static state performance test | |
| CN103526948B (en) | The control method of intelligent tensioning system and intelligent tensioning system | |
| CN204512069U (en) | The test bed hydraulic control system of energy saving excavator oil hydraulic cylinder | |
| CN103939421B (en) | A kind of method for testing fatigue for hydraulic cylinder and device | |
| CN111577684B (en) | Hydraulic valve performance test experimental system | |
| CN104071709A (en) | Fixed fly jib stepless amplitude-variation control system for crane and crane | |
| CN101936857B (en) | Confining pressure keeping system of rock triaxial creep testing machine | |
| CN205910075U (en) | A testing arrangement for hydraulic hose withstand voltage test | |
| CN210343893U (en) | Hydraulic system regeneration flow testing arrangement | |
| CN203335504U (en) | Power steering gear performance testing hydraulic device | |
| CN104074840B (en) | Digital valve pilot system | |
| CN207349204U (en) | A kind of flow regeneration test device of engineering machinery operating cylinder | |
| CN207906178U (en) | The synchronous leveling for driving small loop wheel machine supporting leg controls oil circuit | |
| CN203390519U (en) | Automatic pump for hydraulic wrench | |
| CN110259743A (en) | A kind of hydraulic cylinder autonomous control system of rock triaxial creep testing machine | |
| CN114278649A (en) | Hydraulic cylinder working condition simulation test device, control system and method | |
| CN204512027U (en) | A kind of hydraulic system of the ship hydraulic cylinder maintainability test for homonymy loading | |
| CN204082776U (en) | Digital valve pilot system | |
| CN111664141A (en) | Large-radio-frequency hydraulic oil cylinder reliability test platform | |
| CN107642518B (en) | Flow regeneration testing device and testing method for working cylinder of engineering machinery | |
| CN105571754A (en) | Energy saving effect on-line testing and evaluation method and system for excavator hydraulic system | |
| RU117541U1 (en) | STAND FOR DYNAMIC TESTS OF CYLINDERS | |
| CN216867162U (en) | Hydraulic cylinder working condition simulation test device and hydraulic cylinder working condition simulation test control system | |
| CN214837527U (en) | Hydraulic system of hydraulic motor test bed | |
| CN217111891U (en) | Circulating water pressure loading device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231121 Address after: 212400 Intersection of Zhiyuan Road and Fudi Road in Jurong Economic Development Zone, Zhenjiang City, Jiangsu Province Patentee after: Jiangsu Wode High Precision Complete Equipment Co.,Ltd. Address before: No.55 Guangyuan Road, Dantu new town, Dantu District, Zhenjiang City, Jiangsu Province, 212000 Patentee before: JIANGSU WODE HIGH-TECH AGRICULTURAL EQUIPMENT Co.,Ltd. |
|
| TR01 | Transfer of patent right |