CN104454748A - Reliable comprehensive energy-saving hydraulic test device for gear pumps, overflow valves and one-way valves - Google Patents
Reliable comprehensive energy-saving hydraulic test device for gear pumps, overflow valves and one-way valves Download PDFInfo
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- CN104454748A CN104454748A CN201410734571.8A CN201410734571A CN104454748A CN 104454748 A CN104454748 A CN 104454748A CN 201410734571 A CN201410734571 A CN 201410734571A CN 104454748 A CN104454748 A CN 104454748A
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- gear pump
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- way valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
Abstract
The invention relates to a reliable comprehensive energy-saving hydraulic test device for gear pumps, overflow valves and one-way valves. The reliable comprehensive energy-saving hydraulic test device comprises measured gear pumps, measured overflow valves, measured one-way valves and a hydraulic oil pipeline; the reliable comprehensive energy-saving hydraulic test device is characterized in that the two measured gear pumps, two measured overflow valves and the two measured one-way valves are respectively arranged, and the measured gear pumps are driven by a motor to work; the pressure oil of the first gear pump and the second gear pump flow together to a P oil port of a three-position four-way electromagnetic directional valve after being collected, an A oil port of the three-position four-way electromagnetic directional valve is connected with the third one-way valve and the first overflow valve, and a B oil port is connected with the fourth one-way valve and the second overflow valve. Two gear pump samples, two one-way valve samples and two overflow valve samples are simultaneously tested by one motor and one three-position four-way electromagnetic directional valve, thereby increasing the type and number of the samples, saving energy and greatly improving the test efficiency, meanwhile, the invention further has the advantages of high simplicity in control and easiness in promotion.
Description
Technical field
The present invention relates to a kind of can the device of simultaneously measuring gear pump, relief valve and one-way valve reliability index, particularly relate to the synthesis energy saving experimental liquid pressure device of a kind of gear pump, relief valve and one-way valve reliability.
Background technique
Gear pump, relief valve and one-way valve are as the critical elements of hydraulic system, its reliability level directly has influence on reliability and the Security of whole hydraulic system, for guaranteeing the normal operation under regulation service condition and service time of gear pump, relief valve and one-way valve, need to carry out reliability trial to it.
Current state internal gear pump, relief valve and one-way valve reliability trial loop are general with reference to the test loop in machinery industry standard, the number of samples of this kind of scheme single test foundation is few, multisample test is needed to the time of at substantial, and a kind of hydraulic element can only be tested in often kind of test loop, need when testing polytype hydraulic element to set up different test stands, cause the wasting of resources.
Summary of the invention
Technical problem to be solved by this invention is the synthesis energy saving experimental liquid pressure device of measuring gear pump, relief valve and one-way valve multinomial reliability index while of providing a kind of energy for above-mentioned prior art present situation, this device can increase kind and the quantity of test sample, improve test efficiency, reduce the advantage of energy consumption.
The present invention solves the problems of the technologies described above adopted technological scheme: the synthesis energy saving experimental liquid pressure device of a kind of gear pump, relief valve and one-way valve reliability, comprises tested gear pump, tested relief valve and tested one-way valve, and hydraulic oil pipeline; It is characterized in that: described tested gear pump, tested relief valve and tested one-way valve respectively have two, be respectively the first tested gear pump, the second tested gear pump, the first tested relief valve, the second tested relief valve, the first tested one-way valve, the second tested one-way valve; Described first tested gear pump and the second tested gear pump are worked by driven by motor; Be communicated with fuel tank after the filler opening of the first tested gear pump connects the first stop valve, pressure oil port connects the first pressure transducer, first-class gauge and the first one-way valve successively; The filler opening of the second tested gear pump connects the second stop valve, and pressure oil port connects the second pressure transducer, second gauge and the second one-way valve successively; Connect the P hydraulic fluid port of three-position four-way electromagnetic directional valve behind the fuel-displaced interflow of described first one-way valve and the second one-way valve, and be communicated with fuel tank after interflow place connects safety valve; The A hydraulic fluid port of described three-position four-way electromagnetic directional valve connects the first tested one-way valve, the 3rd stop valve, the 3rd pressure transducer, the first tested relief valve and the 3rd flowmeter successively; The B hydraulic fluid port of described three-position four-way electromagnetic directional valve connects the second tested one-way valve, the 4th stop valve, the 4th pressure transducer, the second tested relief valve and the 4th flowmeter successively; First tested one-way valve is communicated with separately with the 5th stop valve with the outlet line of the second tested one-way valve, gets back to fuel tank behind the fuel-displaced interflow of the 3rd flowmeter and the 4th flowmeter; The T hydraulic fluid port of described three-position four-way electromagnetic directional valve connects two hydraulic pipe lines, and Article 1 hydraulic pipe line connects the 7th stop valve, and another article of hydraulic pipe line connects the 6th stop valve and the 5th flowmeter successively, gets back to fuel tank behind two hydraulic pipe line interflow.
Above-mentioned fuel tank is provided with the three-temperature sensor whether reaching the temperature requirement of the first tested gear pump and the second tested gear pump elevated temperature impact test for detecting fuel tank oil temperature.
The motor of the tested gear pump of above-mentioned driving first and the second tested gear pump work is two extension bar motors, first shaft extension of this pair of extension bar motor is connected with the first gear pump by moment of torsion rotational speed meters, and the second shaft extension of two extension bar motor is directly connected with the second gear pump.Adopt two extension bar motor that a motor can be used to drive the first tested gear pump and the second tested gear pump work simultaneously, reduce costs the conformity that simultaneously can ensure the first tested gear pump and the second tested gear pump work.
The leakage hydraulic fluid port of above-mentioned first tested gear pump connects the first temperature transducer for detected temperatures signal.
The leakage hydraulic fluid port of above-mentioned second tested gear pump connects the second temperature transducer for detected temperatures signal.
Cooler is connect successively and return filter returns fuel tank behind the fuel-displaced interflow of above-mentioned 3rd flowmeter and the 4th flowmeter.Hydraulic oil after such backflow can be cleaner flow back to fuel tank.
Compared with prior art, the invention has the advantages that:
1, completed the keying number of times test of the elevated temperature impact test of tested gear pump, accelerated life test, tested one-way valve and relief valve by test battery device simultaneously, add the specimen types of test, improve test efficiency;
2, test 2 gear pump samples, 2 one-way valve samples and 2 relief valve samples by 1 motor and 1 three-position four-way electromagnetic directional valve simultaneously, add test sample quantity, save test period, decrease energy consumption;
3, loaded by tested relief valve, make system test pressure higher than the rated pressure of gear pump, propulsion trial process, reduces test period further;
4, by data acquistion system Real-time Collection and each performance parameter of monitoring tested sample, accurate judgement can be made to failure condition;
5, this experimental liquid pressure device also has control simple, is easy to the advantage promoted.
Accompanying drawing explanation
Fig. 1 is the principle schematic of the embodiment of the present invention.
Number in the figure: 1, two extension bar motor; 2, moment of torsion rotational speed meters; 3, the first stop valve; 4, the first tested gear pump; 5, the first temperature transducer; 6, the first pressure transducer; , 7 first-class gauge; 8, the first one-way valve; 9, three-position four-way electromagnetic directional valve; 10, the second tested one-way valve; 11, the first tested one-way valve; 12, the 5th stop valve; 13, the 4th stop valve; 14, the 3rd stop valve; 15, the 4th pressure transducer; 16, the 3rd pressure transducer; 17, the first tested relief valve; 18, the second tested relief valve; 19, the 3rd flowmeter; 20, the 4th flowmeter; 21 the 5th flowmeters; 22, cooler; 23, return filter; 24, three-temperature sensor; 25, the 6th stop valve; 26, the 7th stop valve; 27, safety valve; 28 second pressure transducers; 29, the second temperature transducer; 30, the second one-way valve; 31, the second tested gear pump; 32, the second stop valve; 33, second gauge.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
As shown in Figure 1, be a preferred embodiment of the present invention.
A synthesis energy saving experimental liquid pressure device for gear pump, relief valve and one-way valve reliability, comprises tested gear pump, tested relief valve and tested one-way valve, and hydraulic oil pipeline.
Tested gear pump, tested relief valve and tested one-way valve respectively have two, are respectively the tested one-way valve 10 of first tested gear pump 4, second tested gear pump 31, first tested relief valve 17, second tested relief valve the 18, first tested one-way valve 11, second.
First tested gear pump 4 and the second tested gear pump 31 are worked by driven by motor, the motor driving the first tested gear pump 4 and the second tested gear pump 31 to work is two extension bar motor 1, first shaft extension of this pair of extension bar motor 1 is connected with the first gear pump 4 by moment of torsion rotational speed meters 2, and the second shaft extension of two extension bar motor 1 is directly connected with the second gear pump 31.
The filler opening of the first tested gear pump 4 connects the first stop valve 3 and is communicated with fuel tank afterwards, the pressure oil port of the first tested gear pump 4 connects the first pressure transducer 6, first-class gauge 7 and the first one-way valve 8 successively, first pressure transducer 6 and first-class gauge 7 are used for detecting pressure signal and the flux signal of hydraulic fluid port respectively, and the leakage hydraulic fluid port of the first tested gear pump 4 connects the first temperature transducer 5 for detected temperatures signal.
The filler opening of the second tested gear pump 31 connects the second stop valve 32, the pressure oil port of the second tested gear pump 31 connects the second pressure transducer 28, second gauge 33 and the second one-way valve 30 successively, second pressure transducer 28 and second gauge 33 are used for detecting pressure signal and the flux signal of hydraulic fluid port respectively, and the leakage hydraulic fluid port of the second tested gear pump 31 connects the second temperature transducer 29 for detected temperatures signal.
Connect the P hydraulic fluid port of three-position four-way electromagnetic directional valve 9 behind the fuel-displaced interflow of the first one-way valve 8 and the second one-way valve 30, and be communicated with fuel tank connect safety valve 27 at interflow place after, safety valve 27 is in order to the safety pressure of regulating system.
The A hydraulic fluid port of three-position four-way electromagnetic directional valve 9 connects the first tested one-way valve 11, the 3rd stop valve 14, the 3rd pressure transducer 16, first tested relief valve 17 and the 3rd flowmeter 19 successively.
The B hydraulic fluid port of three-position four-way electromagnetic directional valve 9 connects the second tested one-way valve 10, the 4th stop valve 13, the 4th pressure transducer 15, second tested relief valve 18 and the 4th flowmeter 20 successively.
First tested one-way valve 11 is communicated with separately with the 5th stop valve 12 with the outlet line of the second tested one-way valve 10, connects cooler 22 successively and return filter 23 returns fuel tank behind the fuel-displaced interflow of the 3rd flowmeter 19 and the 4th flowmeter 20.Fuel tank is provided with the three-temperature sensor 24 whether reaching the temperature requirement of the first tested gear pump 4 and the second tested gear pump 31 elevated temperature impact test for detecting fuel tank oil temperature.
The T hydraulic fluid port of three-position four-way electromagnetic directional valve 9 connects two hydraulic pipe lines, Article 1, hydraulic pipe line connects the 7th stop valve 26, another article hydraulic pipe line connects the 6th stop valve 25 and the 5th flowmeter 21 successively, 6th stop valve 25 and the 5th flowmeter 21 are used for the flux signal of the tested one-way valve of detection first 11 and the second tested one-way valve 10 reverse leakage, get back to fuel tank behind two hydraulic pipe lines interflow.
First tested gear pump 4 and the second tested gear pump 31 pressure oil output under the driving of two extension bar motor 1; First tested relief valve 17 and the second tested relief valve 18 are system loads; Tested hydraulic element are made to complete the time of movement of regulation by controlling three-position four-way electromagnetic directional valve 9; By several pressure, temperature transducer and the flowmeter installed in hydraulic oil pipeline in process of the test, and gather correlation test data at the moment of torsion rotational speed meters 2 that the input shaft of the first gear pump 4 is installed, the reliability characteristic data of tested gear pump sample, relief valve sample and one-way valve sample are calculated according to mathematical method.
The specific operation of this testing apparatus comprise the steps:
Step 1, open the first stop valve 3, second stop valve 32, the 3rd stop valve 14, the 4th stop valve 13, the 7th stop valve 26, close the 5th stop valve 12 and the 6th stop valve 25, regulate the first tested relief valve 17 and the second tested relief valve 18 to system pressure to reach specified testing pressure P1, safety valve 27 cracking pressure is adjusted to a little more than P1 value.
Step 2, open testing apparatus, through the short time run and, after the parameter index such as system pressure, oil liquid temperature meets test requirements document, start test data sheet.
Step 3, beginning shock test, the sequence of movement of setting up three-position four-way electromagnetic directional valve 9 makes tested sample all reach the time of movement of regulation at the appointed time.When 1DT obtains dead electricity one time, the first tested gear pump 4 and the second tested gear pump 31 sample complete and once load → unloaded impact process, and the first tested one-way valve 11 and the first tested relief valve 17 complete an opening-closing process simultaneously; With should 2DT obtain dead electricity one time time, the first tested gear pump 4 and the second tested gear pump 31 sample also complete and once load → unloaded impact process, and the second tested one-way valve 10 and the second tested relief valve 18 complete an opening-closing process simultaneously.
In step 4, process of the test, detected torque signal and the tach signal of two extension bar motor 1 by moment of torsion rotational speed meters 2; Detected pressure signal and the flux signal of the first tested gear pump 4 oil outlet by the first pressure transducer 6 and first-class gauge 7, by the first temperature transducer 5, its Leakage Energy temperature is detected; Detected pressure signal and the flux signal of the second tested gear pump 31 oil outlet by the second pressure transducer 28 and second gauge 33, by the second temperature transducer 29, its Leakage Energy temperature is detected; Detected the cracking pressure signal of the first tested relief valve 17 by the 3rd pressure transducer 16 and the 3rd flowmeter 19, detected the cracking pressure signal of the second tested relief valve 18 by the 4th pressure transducer 15 and the 4th flowmeter 20.
Step 5, whether to be had by real-time data acquisition viewing system that abnormal pressure fluctuates, extraordinary noise and overheating, once a certain sample lost efficacy, that records this sample added up number of shocks.
Step 6, after first group of sample reaches the time of movement of regulation, open the 5th stop valve 12 and the 6th stop valve 25, close the 3rd stop valve 14, the 4th stop valve 13 and the 7th stop valve 26.When 1DT obtains electric, the 5th flowmeter 21 can record the reverse leakage flux signal of the second tested one-way valve 10, can record the reverse leakage flux signal of the first tested one-way valve 11 when 2DT obtains electric.
Step 7, when after first group of off-test, from pilot system, pull down tested gear pump, tested relief valve and tested one-way valve, part strip inspection is carried out to it, check that whether the wearing and tearing of each friction pair are normal, whether grind the phenomenons such as wound, burn, fatigue flake.
Step 8, carry out second group of load test, change brand-new tested sample, the first tested relief valve 17 and the second tested relief valve 19 to system pressure is regulated to reach specified testing pressure P2, safety valve 27 cracking pressure is adjusted to a little more than P2 value, open the first stop valve 3, second stop valve 32, the 3rd stop valve 14, the 4th stop valve 13, the 7th stop valve 26, close the 5th stop valve 12 and the 6th stop valve 25, run and after start test.
Step 9, repetition step 3 ~ 7.
Each sensor signal data that step 10, extraction twice test Computer file, draws the reliability characteristic data of tested gear pump sample, relief valve sample and one-way valve sample by mathematical method.
Although more than describe in detail the preferred embodiments of the present invention, should be expressly understood that, for a person skilled in the art, the present invention can have various modifications and variations.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a synthesis energy saving experimental liquid pressure device for gear pump, relief valve and one-way valve reliability, comprises tested gear pump, tested relief valve and tested one-way valve, and hydraulic oil pipeline; It is characterized in that: described tested gear pump, tested relief valve and tested one-way valve respectively have two, be respectively the first tested gear pump (4), the second tested gear pump (31), the first tested relief valve (17), the second tested relief valve (18), the first tested one-way valve (11), the second tested one-way valve (10); Described first tested gear pump (4) and the second tested gear pump (31) are worked by driven by motor; The filler opening of the first tested gear pump (4) connects the first stop valve (3) and is communicated with fuel tank afterwards, and pressure oil port connects the first pressure transducer (6), first-class gauge (7) and the first one-way valve (8) successively; The filler opening of the second tested gear pump (4) connects the second stop valve (32), and pressure oil port connects the second pressure transducer (28), second gauge (33) and the second one-way valve (30) successively; Connect the P hydraulic fluid port of three-position four-way electromagnetic directional valve (9) behind the fuel-displaced interflow of described first one-way valve (8) and the second one-way valve (30), and connect safety valve (27) at interflow place and be communicated with fuel tank afterwards; The A hydraulic fluid port of described three-position four-way electromagnetic directional valve (9) connects the first tested one-way valve (11), the 3rd stop valve (14), the 3rd pressure transducer (16), the first tested relief valve (17) and the 3rd flowmeter (19) successively; The B hydraulic fluid port of described three-position four-way electromagnetic directional valve (9) connects the second tested one-way valve (10), the 4th stop valve (13), the 4th pressure transducer (15), the second tested relief valve (18) and the 4th flowmeter (20) successively; First tested one-way valve (11) is communicated with separately with the 5th stop valve (12) with the outlet line of the second tested one-way valve (10), gets back to fuel tank behind the fuel-displaced interflow of the 3rd flowmeter (19) and the 4th flowmeter (20); The T hydraulic fluid port of described three-position four-way electromagnetic directional valve (9) connects two hydraulic pipe lines, Article 1, hydraulic pipe line connects the 7th stop valve (26), another article hydraulic pipe line connects the 6th stop valve (25) and the 5th flowmeter (21) successively, gets back to fuel tank behind two hydraulic pipe line interflow.
2. synthesis energy saving experimental liquid pressure device according to claim 1, is characterized in that: described fuel tank is provided with the three-temperature sensor (24) whether reaching the temperature requirement of the first tested gear pump (4) and the second tested gear pump (31) elevated temperature impact test for detecting fuel tank oil temperature.
3. synthesis energy saving experimental liquid pressure device according to claim 1, it is characterized in that: the motor that the tested gear pump of described driving first (4) and the second tested gear pump (31) work is two extension bar motor (1), first shaft extension of this pair of extension bar motor (1) is connected with the first gear pump (4) by moment of torsion rotational speed meters (2), and the second shaft extension of two extension bar motor (1) is directly connected with the second gear pump (31).
4. synthesis energy saving experimental liquid pressure device according to claim 1, is characterized in that: the leakage hydraulic fluid port of described first tested gear pump (4) connects the first temperature transducer (5) for detected temperatures signal.
5. the synthesis energy saving experimental liquid pressure device of gear pump according to claim 1, relief valve and one-way valve reliability, is characterized in that: the leakage hydraulic fluid port of described second tested gear pump (31) connects the second temperature transducer (29) for detected temperatures signal.
6. synthesis energy saving experimental liquid pressure device according to claim 1, is characterized in that: connect cooler (22) successively behind the fuel-displaced interflow of described 3rd flowmeter (19) and the 4th flowmeter (20) and return filter (23) returns fuel tank.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410734571.8A CN104454748B (en) | 2014-12-05 | 2014-12-05 | Reliable comprehensive energy-saving hydraulic test device for gear pumps, overflow valves and one-way valves |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410734571.8A CN104454748B (en) | 2014-12-05 | 2014-12-05 | Reliable comprehensive energy-saving hydraulic test device for gear pumps, overflow valves and one-way valves |
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| CN104454748A true CN104454748A (en) | 2015-03-25 |
| CN104454748B CN104454748B (en) | 2017-01-25 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105697353A (en) * | 2016-01-21 | 2016-06-22 | 燕山大学 | Comprehensive testing device for fault simulation and state detection for hydraulic pump under variable working condition |
| CN107063652A (en) * | 2016-12-26 | 2017-08-18 | 安徽杰曼汽车零部件有限公司 | A kind of unidirectional valve opening pressure quick detection testing stand |
| CN109029942A (en) * | 2018-06-21 | 2018-12-18 | 中广核研究院有限公司 | Single loop non-return valve action test set |
| CN109540501A (en) * | 2019-01-29 | 2019-03-29 | 福建江夏学院 | It is a kind of for testing the integrated testing stand of guide's pump valve and its working method |
| CN109827767A (en) * | 2019-02-28 | 2019-05-31 | 上海立新液压有限公司 | A kind of hydraulic valve automatic testing stand frame |
| CN109854493A (en) * | 2018-11-11 | 2019-06-07 | 中北大学 | A kind of hydraulic-fuel oil double loop multifunctional testing equipment |
| CN109989954A (en) * | 2019-04-18 | 2019-07-09 | 广西玉柴专用汽车有限公司 | A kind of sequential-controlled hydraulic system and its control method |
| CN113137409A (en) * | 2021-04-01 | 2021-07-20 | 天津工程机械研究院有限公司 | Electromagnetic reversing valve test method in ultrahigh pressure environment |
| CN114109613A (en) * | 2021-11-05 | 2022-03-01 | 中国航发西安动力控制科技有限公司 | Aeroengine two-stage gear pump load balancing unit |
| CN114526228A (en) * | 2022-02-18 | 2022-05-24 | 徐州圣邦机械有限公司 | Performance test bed and experimental method for internal gear pump |
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| CN105697353B (en) * | 2016-01-21 | 2017-11-24 | 燕山大学 | A kind of variable working condition Hydraulic pump fault simulation and state-detection combined test apparatus |
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| CN109854493A (en) * | 2018-11-11 | 2019-06-07 | 中北大学 | A kind of hydraulic-fuel oil double loop multifunctional testing equipment |
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| CN109540501B (en) * | 2019-01-29 | 2020-07-10 | 福建江夏学院 | Test bed for testing pilot pump valve integration and working method thereof |
| CN109540501A (en) * | 2019-01-29 | 2019-03-29 | 福建江夏学院 | It is a kind of for testing the integrated testing stand of guide's pump valve and its working method |
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