CN208417103U - A kind of hydraulic device of electric-liquid type pressure test machine - Google Patents
A kind of hydraulic device of electric-liquid type pressure test machine Download PDFInfo
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- CN208417103U CN208417103U CN201820965554.9U CN201820965554U CN208417103U CN 208417103 U CN208417103 U CN 208417103U CN 201820965554 U CN201820965554 U CN 201820965554U CN 208417103 U CN208417103 U CN 208417103U
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- directional control
- solenoid directional
- control valve
- valve
- hydraulic
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- 239000007788 liquid Substances 0.000 title claims abstract description 25
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 39
- 239000003921 oil Substances 0.000 claims abstract description 32
- 239000002828 fuel tank Substances 0.000 claims abstract description 27
- 230000002706 hydrostatic effect Effects 0.000 claims description 17
- 230000005611 electricity Effects 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009355 double cropping Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a kind of hydraulic devices of electric-liquid type pressure test machine, including fuel tank, hydraulic oil pump, motor, solenoid directional control valve, double acting cylinder jack and speed governing valve;The oil outlet of the hydraulic oil pump is connect by pipeline with the P interface of the solenoid directional control valve, the A interface and B interface of the solenoid directional control valve are connect with two chambers of the double acting cylinder jack respectively by pipeline, and the T interface of the solenoid directional control valve is connected to by pipeline with the fuel tank.After the utility model one is tested, hydraulic oil enters the epicoele of double acting cylinder jack by P → B interface of solenoid directional control valve, hydraulic oil in double acting cylinder jack cavity of resorption returns to fuel tank by A → T interface of solenoid directional control valve, is rapidly returned to double acting cylinder jack, to improve working efficiency.
Description
Technical field
The utility model relates to a kind of hydraulic devices, and in particular to a kind of hydraulic device of electric-liquid type pressure test machine.
Background technique
In concrete product (bridge, house, dam etc.) manufacturing process, generally require to make a collection of concrete examination simultaneously
Block is conserved in identical environment, in the different maintenance stages, by the detection of intensity and elasticity modulus to test block, with
The current mechanical state of concrete product is inferred, to determine the quality of concrete, if need to change curing condition, Yi Jijin
The arrangement of row subsequent handling.Electric-liquid type pressure test machine is used exclusively for the intensity of concrete test block and setting for elasticity modulus detection
It is standby, when carrying out hydraulic test using the jack of double acting cylinder, generally require to return jack for a long time after test
It returns, wastes test period.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of hydraulic devices of electric-liquid type pressure test machine, can be fast
Speed returns to jack by hydraulic oil, to reduce the non-cutting time of test.
The technical solution that the utility model solves above-mentioned technical problem is as follows: a kind of hydraulic dress of electric-liquid type pressure test machine
It sets, including fuel tank, hydraulic oil pump, motor, solenoid directional control valve, double acting cylinder jack and speed governing valve;The motor and the liquid
Pressure oil pump is drivingly connected, and the oil inlet of the hydraulic oil pump is connected to by pipeline with the fuel tank, the hydraulic oil pump it is fuel-displaced
Mouth is connect by pipeline with the P interface of the solenoid directional control valve, and the A interface and B interface of the solenoid directional control valve pass through pipeline point
It is not connect with two chambers of the double acting cylinder jack, the T interface of the solenoid directional control valve is connected by pipeline and the fuel tank
It is logical；The oil inlet of the speed governing valve passes through piping connection on the P interface of the solenoid directional control valve, the oil outlet of the speed governing valve
It is connected to by pipeline with the fuel tank.
The beneficial effects of the utility model are: a kind of hydraulic device of electric-liquid type pressure test machine of the utility model is in main oil
Road installation solenoid directional control valve, when operating, hydraulic oil enters double acting cylinder jack by P → A interface of solenoid directional control valve
Cavity of resorption (or epicoele), the hydraulic oil in double acting cylinder jack epicoele (or cavity of resorption) returned by B → T interface of solenoid directional control valve
Oil return box keeps double acting cylinder jack overhanging, works normally pressurization, after test, hydraulic oil by the P of solenoid directional control valve →
B interface enters the epicoele (or cavity of resorption) of double acting cylinder jack, and the hydraulic oil in double acting cylinder jack cavity of resorption (or epicoele) is logical
A → T the interface for crossing solenoid directional control valve returns to fuel tank, is rapidly returned to double acting cylinder jack, to improve working efficiency.
Based on the above technical solution, the utility model can also do following improvement.
It further, further include sensor, the sensor is hydrostatic sensor, and the hydrostatic sensor is mounted on the electricity
On the P interface of magnetic reversal valve.
It further, further include sensor, the sensor is load cell, and the load cell is mounted on described double
The top or bottom of acting cylinder jack.
It further, further include sensor, the sensor includes hydrostatic sensor and load cell, the hydraulic sensing
Device is mounted on the P interface of the solenoid directional control valve, and hydralic pressure gauge is equipped on the hydrostatic sensor, the load cell
It is mounted on the top or bottom of the double acting cylinder jack.
Beneficial effect using above-mentioned further scheme is: being replaced using hydrostatic sensor and/or load cell original
Amesdial, avoid the error manually read, the accuracy of test result data can be improved.
It further, further include frequency converter and hydraulic controller, the hydraulic controller passes through the frequency converter and the electricity
Mechatronics, the hydraulic controller are also electrically connected with the speed governing valve and solenoid directional control valve respectively.
Beneficial effect using above-mentioned further scheme is: hydraulic controller controls the load of double acting cylinder jack and unloads
Lotus, hydraulic controller can also control the flow velocity of speed governing valve, realize that the load of jack and unloading rate are adjustable, and whole process is realized certainly
The control of dynamicization avoids the problem that electronic craft is troublesome in poeration and operation is not accurate enough, improves the working efficiency of test.
Further, the solenoid directional control valve is U-shaped solenoid directional control valve.
It further, further include one or both of check valve and overflow valve, the check valve is connected to the hydraulic oil
On pipeline between the oil outlet of pump and the P interface of the solenoid directional control valve, the oil inlet of the overflow valve is connected to the liquid
On the oil outlet of pressure oil pump, the oil outlet of the overflow valve is connected to by pipeline with the fuel tank.
Beneficial effect using above-mentioned further scheme is: the effect of overflow valve is when the pressure of pipeline is more than overflow valve
Pressure is set, then high pressure oil returns to fuel tank, protects the safety of entire pipeline.
Further, filter is additionally provided on the pipeline between the oil inlet of the hydraulic oil pump and the fuel tank.
Beneficial effect using above-mentioned further scheme is: the quality of oil product in pipeline can be improved in the setting of filter.
Further, the speed governing valve is proportional velocity regulating valve or servo speed governing valve.
Beneficial effect using above-mentioned further scheme is: proportional velocity regulating valve or servo speed governing valve make the unloading of jack
Speed adjustment range is more wide in range.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the hydraulic device of electric-liquid type pressure test machine of the utility model.
In attached drawing, parts list represented by the reference numerals are as follows:
1, fuel tank, 2, hydraulic oil pump, 3, motor, 4, overflow valve, 5, check valve, 6, solenoid directional control valve, 7, speed governing valve, 8, liquid
Pressure table, 9, hydrostatic sensor, 10, double acting cylinder jack, 11, frequency converter, 12, load cell, 13, hydraulic controller,
14, filter.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
As shown in Figure 1, a kind of hydraulic device of electric-liquid type pressure test machine, including fuel tank 1, hydraulic oil pump 2, motor 3(electricity
Machine 3 can be servo motor), solenoid directional control valve 6, double acting cylinder jack 10 and speed governing valve 7;The motor 3 with it is described hydraulic
Oil pump 2 is drivingly connected, and the oil inlet of the hydraulic oil pump 2 is connected to by pipeline with the fuel tank 1, and the hydraulic oil pump 2 goes out
Hydraulic fluid port is connect by pipeline with the P interface of the solenoid directional control valve 6, and the A interface and B interface of the solenoid directional control valve 6 pass through pipe
Road is connect with two chambers of the double acting cylinder jack 10 respectively, the T interface of the solenoid directional control valve 6 by pipeline with it is described
Fuel tank 1 is connected to；The oil inlet of the speed governing valve 7 passes through piping connection on the P interface of the solenoid directional control valve 6, the speed regulation
The oil outlet of valve 7 is connected to by pipeline with the fuel tank 1；In the present invention, two of the double acting cylinder jack 10
Chamber is respectively epicoele and cavity of resorption, in this embodiment, the A interface of the solenoid directional control valve 6 by pipeline can with it is described
The cavity of resorption of double acting cylinder jack 10 connects, when under the A interface and the double acting cylinder jack 10 of the solenoid directional control valve 6
When chamber connects, the B interface of the solenoid directional control valve 6 is connect by pipeline with the epicoele of the double acting cylinder jack 10；Another
In outer embodiment, the A interface of the solenoid directional control valve 6 can also be with the epicoele of the double acting cylinder jack 10 by pipeline
Connection, when the A interface of the solenoid directional control valve 6 is connect with the epicoele of the double acting cylinder jack 10, the electromagnetic switch
The B interface of valve 6 is connect by pipeline with the cavity of resorption of the double acting cylinder jack 10.
This specific embodiment is with " the A interface of the solenoid directional control valve 6 passes through pipeline and the double acting cylinder jack 10
The B interface of cavity of resorption connection, the solenoid directional control valve 6 is connect by pipeline with the epicoele of the double acting cylinder jack 10 " for
It is illustrated；A kind of hydraulic device of electric-liquid type pressure test machine of the utility model installs solenoid directional control valve on working connection, when
When work, hydraulic oil enters the cavity of resorption of double acting cylinder jack, double acting cylinder jack by P → A interface of solenoid directional control valve
Hydraulic oil in epicoele returns to fuel tank by B → T interface of solenoid directional control valve, keeps double acting cylinder jack overhanging, works normally
Pressurization, after test, hydraulic oil enters the epicoele of double acting cylinder jack, double acting by P → B interface of solenoid directional control valve
Hydraulic oil in cylinder jack cavity of resorption returns to fuel tank by A → T interface of solenoid directional control valve, returns double acting cylinder jack rapidly
It returns, to improve working efficiency.
Embodiment one: the utility model further includes sensor, and the sensor is hydrostatic sensor 9, the hydraulic sensing
Device 9 is mounted on the P interface of the solenoid directional control valve 6, in this embodiment, is equipped with liquid on the hydrostatic sensor 9
Press table 8.
Embodiment two: the utility model further includes sensor, and the sensor is load cell 12, the force-measuring sensing
Device 12 is mounted on the top or bottom of the double acting cylinder jack 10.
Embodiment three: the utility model further includes sensor, and the sensor includes hydrostatic sensor 9 and load cell
12, the hydrostatic sensor 9 is mounted on the P interface of the solenoid directional control valve 6, and is equipped with liquid on the hydrostatic sensor 9
Table 8 is pressed, the load cell 12 is mounted on the top or bottom of the double acting cylinder jack 10.
In embodiment one, embodiment two and embodiment three, replaced using hydrostatic sensor and/or load cell original
Amesdial, avoid the error manually read, the accuracy of test result data can be improved.
Example IV: the utility model further includes that frequency converter 11(frequency converter 11 can be servo motor frequency converter) and it is hydraulic
Controller 13, the hydraulic controller 13 are electrically connected by the frequency converter 11 with the motor 3, and the hydraulic controller 13 is also
It is electrically connected respectively with the speed governing valve 7 and solenoid directional control valve 6.Since 7 current limiting of speed governing valve acts on, the control of hydraulic controller 13 is adjusted
The flow velocity of fast valve 8, therefore, the load of double acting cylinder jack 10 and discharge rate are also controllable.If by the stream of speed governing valve 7
Speed is adjusted to the flow velocity less than hydraulic oil pump 2, and hydraulic controller 13 is adjusted the revolving speed of motor 3 by frequency converter 11, works as hydraulic oil
The flow of pump 2 is greater than the setting flow of speed governing valve 7, and the load of double acting cylinder jack 10 is begun to ramp up, the flow of hydraulic oil pump 2
Flow compared with speed governing valve 7 is bigger, and the speed that load rises is faster, when 2 flow of hydraulic oil pump is equal to the flow of speed governing valve 7, double cropping
It is not risen with the pressure of cylinder jack 10 and is not dropped；When the flow of hydraulic oil pump 2 is less than the flow of speed governing valve 7, double acting cylinder jack
10 load is begun to decline, and the flow of hydraulic oil pump 2 is smaller, and the load reduction of double acting cylinder jack 10 is faster, is played in this way
Load and discharge rate can be adjusted by hydraulic controller 13.The load of hydraulic controller control double acting cylinder jack
And off-load, hydraulic controller can also control the flow velocity of speed governing valve, realize that the load of jack and unloading rate are adjustable, it is whole real
Existing automation control avoids the problem that electronic craft is troublesome in poeration and operation is not accurate enough, improves the work effect of test
Rate.
Embodiment five: in the present invention, the solenoid directional control valve 6 is U-shaped solenoid directional control valve.
Embodiment six: the utility model further includes one or both of check valve 5 and overflow valve 4, and the check valve 5 connects
Connect on the pipeline between the oil outlet of the hydraulic oil pump 2 and the P interface of the solenoid directional control valve 6, the overflow valve 4 into
Hydraulic fluid port is connected on the oil outlet of the hydraulic oil pump 2, and the oil outlet of the overflow valve 4 is connected to by pipeline with the fuel tank 1.
The effect of overflow valve is when the pressure of pipeline is more than the setting pressure of overflow valve, then high pressure oil returns to fuel tank, protects entire pipeline
Safety.
Embodiment seven: in the present invention, on the pipeline between the oil inlet and the fuel tank 1 of the hydraulic oil pump 2
It is additionally provided with filter 14.The quality of oil product in pipeline can be improved in the setting of filter.
Embodiment eight: in the present invention, the speed governing valve 7 is proportional velocity regulating valve or servo speed governing valve.Proportionality velocity modulation
Valve or servo speed governing valve make the discharge rate adjusting range of jack more wide in range.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (9)
1. a kind of hydraulic device of electric-liquid type pressure test machine, it is characterised in that: including fuel tank (1), hydraulic oil pump (2), motor
(3), solenoid directional control valve (6), double acting cylinder jack (10) and speed governing valve (7);The motor (3) and the hydraulic oil pump (2)
It is drivingly connected, the oil inlet of the hydraulic oil pump (2) is connected to by pipeline with the fuel tank (1), and the hydraulic oil pump (2) goes out
Hydraulic fluid port is connect by pipeline with the P interface of the solenoid directional control valve (6), and the A interface and B interface of the solenoid directional control valve (6) are logical
It crosses pipeline to connect with two chambers of the double acting cylinder jack (10) respectively, the T interface of the solenoid directional control valve (6) passes through pipe
Road is connected to the fuel tank (1)；P of the oil inlet of the speed governing valve (7) by piping connection in the solenoid directional control valve (6) connects
On mouth, the oil outlet of the speed governing valve (7) is connected to by pipeline with the fuel tank (1).
2. a kind of hydraulic device of electric-liquid type pressure test machine according to claim 1, it is characterised in that: further include sensing
Device, the sensor are hydrostatic sensor (9), and the hydrostatic sensor (9) is mounted on the P interface of the solenoid directional control valve (6)
On.
3. a kind of hydraulic device of electric-liquid type pressure test machine according to claim 1, it is characterised in that: further include sensing
Device, the sensor are load cell (12), and the load cell (12) is mounted on the double acting cylinder jack (10)
Top or bottom.
4. a kind of hydraulic device of electric-liquid type pressure test machine according to claim 1, it is characterised in that: further include sensing
Device, the sensor include hydrostatic sensor (9) and load cell (12), and the hydrostatic sensor (9) is mounted on the electricity
On the P interface of magnetic reversal valve (6), and hydralic pressure gauge (8) are equipped on the hydrostatic sensor (9), the load cell (12)
It is mounted on the top or bottom of the double acting cylinder jack (10).
5. a kind of hydraulic device of electric-liquid type pressure test machine according to any one of claims 1 to 4, it is characterised in that:
It further include frequency converter (11) and hydraulic controller (13), the hydraulic controller (13) passes through the frequency converter (11) and the electricity
Machine (3) electrical connection, the hydraulic controller (13) are also electrically connected with the speed governing valve (7) and solenoid directional control valve (6) respectively.
6. a kind of hydraulic device of electric-liquid type pressure test machine according to any one of claims 1 to 4, it is characterised in that:
The solenoid directional control valve (6) is U-shaped solenoid directional control valve.
7. a kind of hydraulic device of electric-liquid type pressure test machine according to any one of claims 1 to 4, it is characterised in that:
It further include one or both of check valve (5) and overflow valve (4), the check valve (5) is connected to the hydraulic oil pump (2)
On pipeline between oil outlet and the P interface of the solenoid directional control valve (6), the oil inlet of the overflow valve (4) is connected to described
On the oil outlet of hydraulic oil pump (2), the oil outlet of the overflow valve (4) is connected to by pipeline with the fuel tank (1).
8. a kind of hydraulic device of electric-liquid type pressure test machine according to any one of claims 1 to 4, it is characterised in that:
Filter (14) are additionally provided on pipeline between the oil inlet and the fuel tank (1) of the hydraulic oil pump (2).
9. a kind of hydraulic device of electric-liquid type pressure test machine according to any one of claims 1 to 4, it is characterised in that:
The speed governing valve (7) is proportional velocity regulating valve or servo speed governing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820965554.9U CN208417103U (en) | 2018-06-22 | 2018-06-22 | A kind of hydraulic device of electric-liquid type pressure test machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820965554.9U CN208417103U (en) | 2018-06-22 | 2018-06-22 | A kind of hydraulic device of electric-liquid type pressure test machine |
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| Publication Number | Publication Date |
|---|---|
| CN208417103U true CN208417103U (en) | 2019-01-22 |
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ID=65108058
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820965554.9U Expired - Fee Related CN208417103U (en) | 2018-06-22 | 2018-06-22 | A kind of hydraulic device of electric-liquid type pressure test machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208417103U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307193A (en) * | 2019-07-09 | 2019-10-08 | 中国矿业大学 | A kind of large-capacity valve-pump jointly controls emulsion power pack and its control method |
| CN113898620A (en) * | 2021-07-22 | 2022-01-07 | 浙江大学 | Flexible loading and unloading method for large-flow pump station |
-
2018
- 2018-06-22 CN CN201820965554.9U patent/CN208417103U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307193A (en) * | 2019-07-09 | 2019-10-08 | 中国矿业大学 | A kind of large-capacity valve-pump jointly controls emulsion power pack and its control method |
| CN113898620A (en) * | 2021-07-22 | 2022-01-07 | 浙江大学 | Flexible loading and unloading method for large-flow pump station |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190122 |