CN205027527U - Hydraulic pump automatic voltage regulation test device of system with automatic loading function - Google Patents
Hydraulic pump automatic voltage regulation test device of system with automatic loading function Download PDFInfo
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- CN205027527U CN205027527U CN201520815669.6U CN201520815669U CN205027527U CN 205027527 U CN205027527 U CN 205027527U CN 201520815669 U CN201520815669 U CN 201520815669U CN 205027527 U CN205027527 U CN 205027527U
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Abstract
The utility model provides a hydraulic pump automatic voltage regulation test device of system with automatic loading function, belongs to the automatic control technology field. The utility model discloses a solve the unable problem that realizes low pressure, two kinds of output ranges of high pressure of present hydraulic pump pressure regulating system test bench, and unable two kinds of voltage regulating mode's of realization the problem of jointly using. The utility model discloses a water route includes filter, low -pressure charging pump, crowning booster pump, low pressure bleeder valve and middle and high voltage bleeder valve, pressure sensor and manometer, the opening of booster pump stop and the pressure size by the gas pressure size of this booster pump of drive with and preceding control valve break -make decision. The action of low pressure bleeder valve and middle and high voltage bleeder valve also actuates the head by its pneumatics and whether ventilates and decide. The drive includes gas source processing unit, ooff valve, ratio pressure reducing valve, manual relief pressure valve, the gentle valve of controlling of solenoid valve with the control gas circuit. The utility model discloses convenient, quick adjustment hydraulic pressure, there are low pressure, two kinds of output ranges of high pressure in the system, realizes jointly using of manual automatic voltage regulation mode.
Description
Technical field
The utility model relates to a kind of hydraulic pump voltage-regulating system testing table, is specifically related to a kind of hydraulic pump voltage-regulating system testing table with automatic value-added tax function, belongs to technical field of automatic control.
Background technology
Hydraulic pump voltage-regulating system is widely used in all trades and professions of automation field.Along with the development of technology, level of integrated system requires more and more higher, more requires that easy human nature operates.Hydraulic pump voltage-regulating system technology is comparatively ripe already, and the improvement that its each parts are trickle is all very difficult to those skilled in the art, and being all needs to pay creative effort.
Existing hydraulic pump voltage-regulating system testing table only devises the fixing supercharge pump of a conversion range grade, and therefore system cannot realize low pressure, high pressure two kinds of output areas; In addition, existing hydraulic pump voltage-regulating system testing table only can realize hand reducing pressure or automatic pressure-reducing, cannot realize the use in conjunction of two kinds of voltage regulating modes.Therefore, novel hydraulic pump voltage-regulating system testing table is is urgently researched and developed.
Utility model content
Give hereinafter about brief overview of the present utility model, to provide about the basic comprehension in some of the present utility model.Should be appreciated that this general introduction is not summarize about exhaustive of the present utility model.It is not that intention determines key of the present utility model or pith, neither intended limitation scope of the present utility model.Its object is only provide some concept in simplified form, in this, as the preorder in greater detail discussed after a while.
Given this, according to an aspect of the present utility model, provide a kind of hydraulic pump automatic voltage regulating system test unit with automatic value-added tax function, at least to solve the problem that existing hydraulic pump voltage-regulating system testing table cannot realize low pressure, high pressure two kinds of output areas; And the problem of use in conjunction of two kinds of voltage regulating modes cannot be realized.
A kind of hydraulic pump automatic voltage regulating system test unit with automatic value-added tax function that the utility model proposes,
Comprise water source supply pipeline, and be connected on the first filtrator, low-pressure charging pump, the second filtrator, mesohigh supercharge pump and the 3rd filtrator on water source supply pipeline from left to right successively; The top of water source supply pipeline connects the first water tank, and the end of water source supply pipeline connects the first test specimen;
The water source supply pipeline of the endpiece of the second filtrator is connected with the first water source branch road; First water source branch road is serially connected with the first tensimeter and the first pressure transducer, the end of the first water source branch road connects the second test specimen; Second water source branch road is connected on the first water source branch road, and second water source branch road is provided with low pressure drain valve, and the second water source branch road other end connects the second water tank;
Water source supply pipeline between the 3rd filtrator and the first test specimen is serially connected with the second tensimeter and the second pressure transducer; 3rd water source branch road is connected on the water source supply pipeline between the 3rd filtrator and the first test specimen, and the 3rd water source branch road is provided with mesohigh bleeder valve, and the other end of the 3rd water source branch road connects three-tank;
Also comprise and drive and control gas circuit, and be connected on the 3rd tensimeter, source of the gas processing unit, the first switch valve and the 4th tensimeter that drive with controlling in gas circuit from left to right, drive and be connected source of the gas with control gas circuit top, drive and be connected with the top of the first source of the gas branch road, the second source of the gas branch road and the 3rd source of the gas branch road respectively with the end controlling gas circuit;
First source of the gas branch road connects proportional pressure-reducing valve, the 4th solenoid valve and second switch valve successively; Second switch valve is connected with low-pressure charging pump, is parallel with the 4th source of the gas branch road between the 4th solenoid valve and second switch valve, and the 4th source of the gas branch road is connected with Pneumatic valve, and Pneumatic valve is connected with mesohigh supercharge pump;
Second source of the gas branch road connects hand reducing pressure valve, the 3rd switch valve and Pneumatic valve successively; Be parallel with the 5th source of the gas branch road between hand reducing pressure valve, the 3rd switch valve, the 5th source of the gas branch road is connected with second switch valve; Second source of the gas branch road is provided with the 5th tensimeter;
3rd source of the gas branch road connects the first solenoid valve and Pneumatic valve successively; The 6th source of the gas branch road and the 7th source of the gas branch road is parallel with at the upstream end of the first solenoid valve; 6th source of the gas branch road connects the 4th switch valve and the second solenoid valve and mesohigh bleeder valve successively; 7th source of the gas branch road connects the 5th switch valve, the 3rd solenoid valve and low pressure drain valve successively.
Scheme is designed further: described source of the gas processing unit comprises gas filter, decompressor and the interpolation oil sprayer of connecting successively.
In order to the integrated operation of the height realizing hydraulic system, system uses more safe and reliable, and be convenient to observe and record various information, navigation analysis is reported, to inquire about at any time.
Scheme is designed further: a kind of hydraulic pump automatic voltage regulating system test unit with automatic value-added tax function also comprises process logic controller, and process logic controller is connected with proportional pressure-reducing valve, for control ratio reduction valve valve opening; Process logic controller is also connected with the first pressure transducer and the second pressure transducer.According to the feedback information adjustment airline pressure of pressure transducer, then realized the transfer process of electric current-air pressure-hydraulic pressure by supercharge pump.
Further: process logic controller is also connected with the first solenoid valve, the second solenoid valve, the 3rd solenoid valve, the 4th solenoid valve, low pressure drain valve, mesohigh bleeder valve and Pneumatic valve.Realize control highly integrated.
Further: process logic controller is connected with host computer.So more be convenient to observe and record various information, navigation analysis is reported, to inquire about at any time.
Further: described process logic controller adopts SIEMENS PLC S7-1200 process logic controller.
The effect that the utility model reaches is:
The utility model provides a kind of hydraulic pump automatic voltage regulating system test unit with automatic value-added tax function, regulator solution pressure pressure easily and fast, the supercharge pump of conversion range different brackets has been connected, can realize two-stage supercharging when the solenoid valve controlling corresponding supercharge pump is opened, therefore system has low pressure, high pressure two kinds of output areas.Proportional pressure-reducing valve and hand reducing pressure valve Parallel Design, realize the use in conjunction of two kinds of voltage regulating modes.Using Siemens PLCS7-1200 as process logic controller, control the valve opening of a ratio adjusting valve, according to the Output pressure of the feedback information adjustment gas circuit of pressure transducer, then realized the transfer process of electric current-air pressure-hydraulic pressure by supercharge pump.This system disposition host computer, by information such as host computer record pressure curve and alarm loggings, can carry out real-time follow-up and record to experiment content, conveniently inquires about at any time, can history of printing result easily, forms analysis report.
Accompanying drawing explanation
Fig. 1 is a kind of hydraulic pump automatic voltage regulating system test device systematic schematic diagram with automatic value-added tax function of the present utility model;
Fig. 2 is control principle drawing of the present utility model.
In figure: B1 low-pressure charging pump; B2-mesohigh supercharge pump; D1-first solenoid valve; D2-second solenoid valve; D3-the 3rd solenoid valve; D4-the 4th solenoid valve; J1-proportional pressure-reducing valve; J2-hand reducing pressure valve; K1-first switch valve; K2-second switch valve; K3-the 3rd switch valve; K4-the 4th switch valve; K5-the 5th switch valve; L1-first filtrator; L2-second filtrator; L3-the 3rd filtrator; P1-first tensimeter; P2-second tensimeter; P3-the 3rd tensimeter; P4-the 4th tensimeter; P5-the 5th tensimeter; PT1-first pressure transducer; PT2-second pressure transducer; Q1-low pressure drain valve; Q2-mesohigh bleeder valve; Q3-Pneumatic valve; QY1-source of the gas processing unit.
Embodiment
To be described one exemplary embodiment of the present utility model by reference to the accompanying drawings hereinafter.For clarity and conciseness, all features of actual embodiment are not described in the description.But, should understand, must make a lot specific to the decision of embodiment in the process of any this practical embodiments of exploitation, to realize the objectives of developer, such as, meet those restrictive conditions relevant to system and business, and these restrictive conditions may change to some extent along with the difference of embodiment.In addition, although will also be appreciated that development is likely very complicated and time-consuming, concerning the those skilled in the art having benefited from the utility model disclosure, this development is only routine task.
At this, also it should be noted is that, in order to avoid the utility model fuzzy because of unnecessary details, illustrate only in the accompanying drawings with according to the closely-related apparatus structure of scheme of the present utility model and/or treatment step, and eliminate other details little with the utility model relation.
As depicted in figs. 1 and 2, embodiment of the present utility model provides a kind of hydraulic pump automatic voltage regulating system test unit with automatic value-added tax function, comprise water source supply pipeline, and be connected on the first filtrator L1, low-pressure charging pump B1 on water source supply pipeline, the second filtrator L2, mesohigh supercharge pump B2 and the 3rd filtrator L3 from left to right successively; The top of water source supply pipeline connects the first water tank, and the end of water source supply pipeline connects the first test specimen;
The water source supply pipeline of the endpiece of the second filtrator L2 is connected with the first water source branch road; First water source branch road is serially connected with the first tensimeter P1 and the first pressure transducer PT1, the end of the first water source branch road connects the second test specimen; Second water source branch road is connected on the first water source branch road, and second water source branch road is provided with low pressure drain valve Q1, and the second water source branch road other end connects the second water tank;
Water source supply pipeline between the 3rd filtrator L3 and the first test specimen is serially connected with the second tensimeter P2 and the second pressure transducer PT2; 3rd water source branch road is connected on the water source supply pipeline between the 3rd filtrator L3 and the first test specimen, and the 3rd water source branch road is provided with mesohigh bleeder valve Q2, and the other end of the 3rd water source branch road connects three-tank;
Also comprise and drive and control gas circuit, and be connected on the 3rd tensimeter P3, source of the gas processing unit QY1, the first switch valve K1 and the 4th tensimeter P4 that drive with controlling in gas circuit from left to right, drive and be connected source of the gas with control gas circuit top, drive and be connected with the top of the first source of the gas branch road, the second source of the gas branch road and the 3rd source of the gas branch road respectively with the end controlling gas circuit;
First source of the gas branch road connects proportional pressure-reducing valve J1, the 4th solenoid valve D4 and second switch valve K2 successively; Second switch valve K2 is connected with low-pressure charging pump B1, is parallel with the 4th source of the gas branch road between the 4th solenoid valve D4 and second switch valve K2, and the 4th source of the gas branch road is connected with Pneumatic valve Q3, and Pneumatic valve Q3 is connected with mesohigh supercharge pump B2;
Second source of the gas branch road connects hand reducing pressure valve J2, the 3rd switch valve K3 and Pneumatic valve Q3 successively; Be parallel with the 5th source of the gas branch road between hand reducing pressure valve J2, the 3rd switch valve K3, the 5th source of the gas branch road is connected with second switch valve K2; Second source of the gas branch road is provided with the 5th tensimeter P5;
3rd source of the gas branch road connects the first solenoid valve D1 and Pneumatic valve Q3 successively; The 6th source of the gas branch road and the 7th source of the gas branch road is parallel with at the upstream end of the first solenoid valve D1; 6th source of the gas branch road connects the 4th switch valve K4 and the second solenoid valve D2 and mesohigh bleeder valve Q2 successively; 7th source of the gas branch road connects the 5th switch valve K5, the 3rd solenoid valve D3 and low pressure drain valve Q1 successively.
Described source of the gas processing unit QY1 comprises gas filter, decompressor and the interpolation oil sprayer of connecting successively.
Hydraulic pump automatic voltage regulating system test unit with automatic value-added tax function also comprises a process logic controller, and process logic controller is connected with proportional pressure-reducing valve J1, for control ratio reduction valve J1 valve opening; Process logic controller is also connected with the first pressure transducer PT1 and the second pressure transducer PT2.
Process logic controller is also connected with the first solenoid valve D1, the second solenoid valve D2, the 3rd solenoid valve D3, the 4th solenoid valve D4, low pressure drain valve Q1, mesohigh bleeder valve Q2 and Pneumatic valve Q3.Process logic controller is connected with host computer.Described process logic controller adopts SIEMENS PLC S7-1200 process logic controller.
Principle of work: see Fig. 1, the first switch valve K1 controls the break-make of gas circuit source of the gas.3rd tensimeter P3 monitoring system inlet gas pressure, the operating air pressure of the 4th tensimeter P4 indication mechanism.
Proportional pressure-reducing valve J1 and hand reducing pressure valve J2 realizes decompression.Wherein, proportional pressure-reducing valve J1 is used for automatically controlling (4 to 20mA), and hand reducing pressure valve J2 is used for Non-follow control.Through proportional pressure-reducing valve J1 reduce pressure or the post-decompression gas of hand reducing pressure valve J2 for controlling low-pressure charging pump B1 and mesohigh supercharge pump B2, low-pressure charging pump B1 and mesohigh supercharge pump B2 and the exportable hydraulic pressure proportional with this gaseous tension.
If required test pressure is not high, then only needs to start low-pressure charging pump B1 and can meet test pressure requirement.Second switch valve K2 drives the pressure gas of low-pressure charging pump B1 for switching.If second switch valve K2 works in left position, then drive low-pressure charging pump B1 by hand reducing pressure valve J2; If second switch valve K2 works in right position, then driving low-pressure charging pump B1 by proportional pressure-reducing valve J1, is automatic control.
If required test pressure is higher, then, except startup low-pressure charging pump B1, still needs and start mesohigh supercharge pump B2.Whether mesohigh supercharge pump B2 starts, and is to be driven by proportional pressure-reducing valve J1 or hand reducing pressure valve J2, then jointly determined by Pneumatic valve Q3, the 3rd switch valve K3 and the first solenoid valve D1.
When the first solenoid valve D1 no power, then the control implication pressure of Pneumatic valve Q3 is 0, and Pneumatic valve Q3 works in left position.If the 3rd switch valve K3 also works in left position, then the driving implication pressure of mesohigh supercharge pump B2 is 0, and mesohigh supercharge pump B2 does not work.When the first solenoid valve D1 is energized, then Pneumatic valve Q3 works in right position, and driving mouth and the proportional pressure-reducing valve J1 of mesohigh supercharge pump B2 connect, and namely driving mesohigh supercharge pump B2 by proportional pressure-reducing valve J1, is be Automatic-boosting.When the first solenoid valve D1 no power, the 3rd switch valve K3 works in right position, then the driving mouth of mesohigh supercharge pump B2 and hand reducing pressure valve J2 connect, and namely driving mesohigh supercharge pump B2 by hand reducing pressure valve J2, is be hand supercharging.
Low pressure drain valve Q1 is controlled by the 3rd solenoid valve D3 and the 5th switch valve K5.When the 3rd solenoid valve D3 is energized, the 3rd solenoid valve D3 works in right position, and the pneumatic head of low pressure drain valve Q1 is brought about the desired sensation action, and close this valve, the pressure water that low-pressure charging pump B1 gets enters test specimen; When the 3rd solenoid valve D3 no power, when the 5th switch valve K5 works in left position, the pneumatic head of low pressure drain valve Q1 must not be electric, then low pressure drain valve Q1 opens, the current recovery tank that low-pressure charging pump B1 pumps.During the 3rd solenoid valve D3 no power, if the 5th switch valve K5 works in right position, then the pneumatic head of low pressure drain valve Q1 is brought about the desired sensation, and low pressure drain valve Q1 closes.The control of mesohigh bleeder valve Q2 is identical.
4th solenoid valve D4 effect: supercharge pump exists lowest starting pressure, after making supercharge pump, output pressure must higher than certain particular value.When the test pressure needed is lower than this value, rely on proportional pressure-reducing valve can not realize regulating.Therefore increase by the 4th solenoid valve D4.System detects supercharge pump output pressure in real time, when reaching the output pressure of setting, turning off solenoid valve, cutting off air feed, thus realizing Stress control.
Although the embodiment that the utility model discloses as above, the embodiment that its content just adopts for the ease of understanding the technical solution of the utility model, is not intended to limit the utility model.Technician in any the utility model art; under the prerequisite not departing from the core technology scheme that the utility model discloses; any amendment and change can be made in the form implemented and details; but the protection domain that the utility model limits, the scope that still must limit with appending claims is as the criterion.
Claims (5)
1. the hydraulic pump automatic voltage regulating system test unit with automatic value-added tax function, it is characterized in that: comprise water source supply pipeline, and be connected on the first filtrator (L1), low-pressure charging pump (B1), the second filtrator (L2), mesohigh supercharge pump (B2) and the 3rd filtrator (L3) on water source supply pipeline from left to right successively; The top of water source supply pipeline connects the first water tank, and the end of water source supply pipeline connects the first test specimen;
The water source supply pipeline of the endpiece of the second filtrator (L2) is connected with the first water source branch road; First water source branch road is serially connected with the first tensimeter (P1) and the first pressure transducer (PT1), the end of the first water source branch road connects the second test specimen; Second water source branch road is connected on the first water source branch road, and second water source branch road is provided with low pressure drain valve (Q1), and the second water source branch road other end connects the second water tank;
Water source supply pipeline between the 3rd filtrator (L3) and the first test specimen is serially connected with the second tensimeter (P2) and the second pressure transducer (PT2); 3rd water source branch road is connected on the water source supply pipeline between the 3rd filtrator (L3) and the first test specimen, and the 3rd water source branch road is provided with mesohigh bleeder valve (Q2), and the other end of the 3rd water source branch road connects three-tank;
Also comprise and drive and control gas circuit, and be connected on the 3rd tensimeter (P3), source of the gas processing unit (QY1), the first switch valve (K1) and the 4th tensimeter (P4) that drive with controlling in gas circuit from left to right, drive and be connected source of the gas with control gas circuit top, drive and be connected with the top of the first source of the gas branch road, the second source of the gas branch road and the 3rd source of the gas branch road respectively with the end controlling gas circuit;
First source of the gas branch road connects proportional pressure-reducing valve (J1), the 4th solenoid valve (D4) and second switch valve (K2) successively; Second switch valve (K2) is connected with low-pressure charging pump (B1), the 4th source of the gas branch road is parallel with between 4th solenoid valve (D4) and second switch valve (K2), 4th source of the gas branch road is connected with Pneumatic valve (Q3), and Pneumatic valve (Q3) is connected with mesohigh supercharge pump (B2);
Second source of the gas branch road connects hand reducing pressure valve (J2), the 3rd switch valve (K3) and Pneumatic valve (Q3) successively; Be parallel with the 5th source of the gas branch road between hand reducing pressure valve (J2), the 3rd switch valve (K3), the 5th source of the gas branch road is connected with second switch valve (K2); Second source of the gas branch road is provided with the 5th tensimeter (P5);
3rd source of the gas branch road connects the first solenoid valve (D1) and Pneumatic valve (Q3) successively; The 6th source of the gas branch road and the 7th source of the gas branch road is parallel with at the upstream end of the first solenoid valve (D1); 6th source of the gas branch road connects the 4th switch valve (K4) and the second solenoid valve (D2) and mesohigh bleeder valve (Q2) successively; 7th source of the gas branch road connects the 5th switch valve (K5), the 3rd solenoid valve (D3) and low pressure drain valve (Q1) successively;
Described source of the gas processing unit (QY1) comprises gas filter, decompressor and the interpolation oil sprayer of connecting successively.
2. a kind of hydraulic pump automatic voltage regulating system test unit with automatic value-added tax function according to claim 1, it is characterized in that: a kind of hydraulic pump automatic voltage regulating system test unit with automatic value-added tax function also comprises process logic controller, process logic controller is connected with proportional pressure-reducing valve (J1), for control ratio reduction valve (J1) valve opening; Process logic controller is also connected with the first pressure transducer (PT1) and the second pressure transducer (PT2).
3. a kind of hydraulic pump automatic voltage regulating system test unit with automatic value-added tax function according to claim 2, is characterized in that: process logic controller is also connected with the first solenoid valve (D1), the second solenoid valve (D2), the 3rd solenoid valve (D3), the 4th solenoid valve (D4), low pressure drain valve (Q1), mesohigh bleeder valve (Q2) and Pneumatic valve (Q3).
4. a kind of hydraulic pump automatic voltage regulating system test unit with automatic value-added tax function according to Claims 2 or 3, is characterized in that: process logic controller is connected with host computer.
5. a kind of hydraulic pump automatic voltage regulating system test unit with automatic value-added tax function according to claim 4, is characterized in that: described process logic controller adopts SIEMENS PLC S7-1200 process logic controller.
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| CN201520815669.6U CN205027527U (en) | 2015-10-20 | 2015-10-20 | Hydraulic pump automatic voltage regulation test device of system with automatic loading function |
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| CN201520815669.6U CN205027527U (en) | 2015-10-20 | 2015-10-20 | Hydraulic pump automatic voltage regulation test device of system with automatic loading function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124795A (en) * | 2016-08-17 | 2016-11-16 | 凯迈（洛阳）气源有限公司 | A kind of top cycle speed test device and scavenger system thereof |
| CN111963587A (en) * | 2020-09-03 | 2020-11-20 | 合肥中辰轻工机械有限公司 | Pneumatic control system and method of clutch |
| CN112283187A (en) * | 2019-07-25 | 2021-01-29 | 上汽通用五菱汽车股份有限公司 | Air channel control device of vehicle door dismounting manipulator |
-
2015
- 2015-10-20 CN CN201520815669.6U patent/CN205027527U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124795A (en) * | 2016-08-17 | 2016-11-16 | 凯迈（洛阳）气源有限公司 | A kind of top cycle speed test device and scavenger system thereof |
| CN112283187A (en) * | 2019-07-25 | 2021-01-29 | 上汽通用五菱汽车股份有限公司 | Air channel control device of vehicle door dismounting manipulator |
| CN111963587A (en) * | 2020-09-03 | 2020-11-20 | 合肥中辰轻工机械有限公司 | Pneumatic control system and method of clutch |
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