CN100547243C - Hydraulic pump test stand - Google Patents
Hydraulic pump test stand Download PDFInfo
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- CN100547243C CN100547243C CNB2008101201572A CN200810120157A CN100547243C CN 100547243 C CN100547243 C CN 100547243C CN B2008101201572 A CNB2008101201572 A CN B2008101201572A CN 200810120157 A CN200810120157 A CN 200810120157A CN 100547243 C CN100547243 C CN 100547243C
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Abstract
A kind of hydraulic pump test stand, comprise tested pump testing (2), motor (4), fuel tank (1), Power Recovery motor (6) and corresponding connecting pipeline, motor (4) clutch end is connected with tested pump testing (2) power intake, motor (4) power intake is connected with the clutch end of Power Recovery motor (6), the oil outlet of tested pump testing (2) is connected with the filler opening pipeline of Power Recovery motor (6), the filler opening of tested pump testing (2) is connected with fuel tank (1) pipeline, the oil outlet of Power Recovery motor (6) is connected with fuel tank (1) pipeline, it is characterized in that this test stand comprises that also one is used for the auxilliary pump (12) of assistant starting motor (4), the filler opening that should assist pump (12) is connected with described fuel tank (1) pipeline, and the oil outlet of this auxilliary pump (12) is connected with the filler opening pipeline of Power Recovery motor (6).Compared with prior art, the invention has the advantages that: adopt low power auxilliary pump hydraulic starting mode to drive machine operation, inrush current obviously reduces, and electric energy loss reduces greatly.
Description
Technical field
The present invention relates to a kind of hydraulic pump test stand, this oil hydraulic pump is in order to performance parameter or and variations such as testing hydraulic pumping pressure, flow, temperature, vibrations.
Background technique
Hydraulic pump test stand is mainly used in the testing property of oil hydraulic pump, is used for measuring oil hydraulic pump pressure, flow, temperature, the isoparametric value of vibration and variation thereof, hydraulic pressure pump curve, process Changing Pattern etc. in process of the test.Early stage hydraulic pump test stand as shown in Figure 1, fuel tank 1a is connected by fluid circuit with tested pump testing 2a, pressure gauge 5a links to each other with tested pump testing 2a oil export with the pressure measurement flexible pipe, tested pump testing 2a is connected by high-pressure rubber pipe with charge valve 6a, the return opening of charge valve 6a is connected by fluid circuit with fuel tank 1a with cooler 7a, oil purifier 8a, fuel tank 1a is provided with liquid level liquid thermometer 10 and air-strainer 9a, and motor 4a is connected with tested pump testing 2a by transmission shaft, and transmission shaft is provided with rotational speed and torque instrument 3a.
Its working principle is the oil suction from fuel tank of tested pump testing, by the filler opening of high-pressure rubber pipe arrival charge valve, and the inlet of heating fluid from the oil outlet to the cooler after the charge valve overflow, fluid is got back to fuel tank after filtering by oil purifier after cooling off, and finishes circulation; By regulating the charge valve aperture, make the system pressure lifting, and show real-time pressure by pressure gauge; Show real-time fuel tank temperature and level height by the liquid level liquid thermometer.Working procedure: at first, prepare before the test; Then, no-load test: charge valve unclamped be in unloaded state,, after waiting to change running state over to, check pressure gauge, should be shown as zero with star triangular methods starting motor; Observe oil temperature, noise, electric current and outer seepage situation, confirm to turn round 15～60 minutes after the no abnormal phenomenon; At last, Load test: regulate the aperture of charge valve, tested pump testing is loaded, pressure gauge reading is slowly risen, until maximum pressure; Observe oil temperature, noise, electric current and outer seepage situation, confirm to turn round 45～100 minutes after the no abnormal phenomenon.
At present, hydraulic test bench generally adopts Open architecture, and the energy that motor produces is got back to fuel tank by heating, and the oil liquid temperature in the fuel tank is risen rapidly, must adopt cooling unit to cool off and reduce oil liquid temperature, during a large amount of electric energy of need consumption.If oil hydraulic pump being tested the part of the energy that produces reclaims, not only can reduce the capacity of dragging motor, can also reduce simultaneously the power of cooling unit, save a large amount of electric energy, on circulation loop, set up the Power Recovery motor for this reason, specifically can be with reference to the 4th interim poplar in " hydropneumatic and sealing " in August, 1999 just like " Power Recovery of shaft type oil hydraulic pump test " of being shown, can also reference " lathe and hydraulic pressure " 2006.No.12 in Liu Bin etc. " the Two-way Variable Displacement Pump Test-bed analysis on Power Recovery System " of being shown.
Above-mentioned prior art is mainly tested some low power oil hydraulic pumps, when test large-power hydraulic pump, there are the following problems: at first, need drive oil hydraulic pump with a powerful motor, the electric motor starting electric current is 5～7 times of rated current, consume a large amount of electric energy; Secondly, need Fraquent start and stop as testing installation, the large power, electrically chance has a strong impact on the normal operation with other equipment of net, and electric elements is caused damage.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of hydraulic pump test stand at the high power hydraulic pump at the above-mentioned state of the art, and this hydraulic pump test stand is assisted pump by starting earlier, and then the structural relation of starting electrical machinery is to reach purpose of energy saving.
The present invention solves the problems of the technologies described above the technological scheme that is adopted: this hydraulic pump test stand, comprise tested pump testing, motor, fuel tank, Power Recovery motor and corresponding connecting pipeline, the motor power output terminal is connected with tested pump power input end, the motor power input end is connected with the clutch end of Power Recovery motor, the oil outlet of tested pump testing is connected with the filler opening pipeline of Power Recovery motor, the filler opening of tested pump testing is connected with the fuel tank pipeline, the oil outlet of Power Recovery motor is connected with the fuel tank pipeline, it is characterized in that this test stand comprises that also one is used for the auxilliary pump of assistant starting motor, the filler opening that should assist pump is connected with described fuel tank pipeline, and the oil outlet of this auxilliary pump is connected with the filler opening pipeline of Power Recovery motor.
Be provided with first one-way valve between described Power Recovery motor and the tested pump line road, working connection passed through, forbid that auxilliary oil circuit passes through, be provided with second one-way valve between described Power Recovery motor and the auxilliary pump line road, auxilliary oil circuit is passed through, forbid that working connection passes through.
The oil outlet pipeline of described auxilliary pump also is connected with an auxilliary relief valve that links to each other with the fuel tank pipeline.
The oil outlet pipeline of described tested pump testing is connected with a pressure gauge, shows auxilliary pump oil pressure.
Can have a rotational speed and torque instrument that is used to measure tested revolution speed, torque and power between described tested pump testing and the motor power output terminal.
The oil outlet pipeline of described auxilliary pump is connected with an auxilliary pressure gauge, is used to survey oil pressure.
Further improve, also be connected with charge valve, cooler and oil purifier in turn between the oil outlet of described tested pump testing and the fuel tank pipeline.
Described fuel tank is provided with liquid level thermometer and air-strainer.The liquid level thermometer can show fuel level in tank and temperature, and air-strainer reaches the effect of ventilation, heat radiation.
Compared with prior art, the invention has the advantages that: adopt low power auxilliary pump hydraulic starting mode to drive machine operation, inrush current obviously reduces, conventional test stand needs more than the 2000A, the present invention then only needs below the 150A, and simultaneously, electric energy loss reduces greatly, frequent starting is less with the normal influence on system operation that stops netting other equipment together, and is also lighter to the infringement of electric elements.
Description of drawings
Fig. 1 is the linkage structure schematic representation of hydraulic pump test stand in the prior art.
Fig. 2 is the linkage structure schematic representation among the embodiment.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Embodiment: with reference to shown in Figure 2, hydraulic pump test stand in the present embodiment, comprise tested pump testing 2, charge valve 8, cooler 9, oil purifier 10, motor 4, auxilliary pump 12, fuel tank 1, auxilliary relief valve,, pressure gauge 5, rotational speed and torque instrument 3, auxilliary pressure gauge 13, Power Recovery motor 6 and corresponding connecting pipeline.Power Recovery motor 6 adopts oil motor.
Motor 4 clutch ends are connected with tested pump testing 2 power intakes, motor 4 power intakes are connected with the clutch end of Power Recovery motor 6, the oil outlet of tested pump testing 2 is connected with the filler opening pipeline of Power Recovery motor 6, the filler opening of tested pump testing 2 is connected with fuel tank 1 pipeline, the oil outlet of Power Recovery motor 6 is connected with fuel tank 1 pipeline
The filler opening of auxilliary pump 12 is connected with fuel tank 1 pipeline, and the oil outlet of this auxilliary pump 12 is connected with the filler opening pipeline of Power Recovery motor 6.
Be provided with first one-way valve 7 between Power Recovery motor 6 and tested pump testing 2 pipelines, be provided with second one-way valve between Power Recovery motor 6 and auxilliary pump 12 pipelines.
Rotational speed and torque instrument 3 is located between tested pump testing 2 and motor 4 clutch ends, is used to measure tested revolution speed, torque and power.
Working principle:
The oil suction from fuel tank 1 of tested pump testing 2, by the filler opening of pipeline arrival charge valve 8, heating fluid 9 inlets from the oil outlet to the cooler after charge valve 8 overflows, fluid is got back to fuel tank 1 after filtering by oil purifier 10 after cooling off, and finishes circulation.Another road high pressure oil is got back to fuel tank 1 through Power Recovery motor 6 simultaneously.
By regulating charge valve 8 apertures, make the system pressure lifting, and show real-time pressure by pressure gauge 5; Show real-time fuel tank 1 temperature and level height by liquid level liquid thermometer 16.
Working procedure:
1, prepare before the test: check all element mounting screws, confirms errorless after, past tested pump testing 2 drain taps add clean hydraulic oil, and use the hand rotating joint, no abnormal phenomenon until filling it up with, connects drain mast.
2, starting test: charge valve 8 unclamped be in unloaded state, with the auxilliary pump 12 of star triangular methods starting, after waiting to change running state over to, drive Power Recovery motor 6, motor 4, rotational speed and torque instrument 3,2 rotations of tested pump testing, speed-raising gradually, when rotational speed and torque instrument 3 showed that reading arrives rating value, across-the-line starting motor 4 stopped auxilliary pump 12 simultaneously.
3, no-load test: after waiting to change running state over to, check pressure gauge 5, should be shown as zero; Observe oil temperature, noise, electric current and outer seepage situation, confirm to turn round 15～60 minutes after the no abnormal phenomenon.
4, Load test: regulate the aperture of charge valve 8, tested pump testing 2 is loaded, pressure gauge 5 readings are slowly risen, until maximum pressure; Observe oil temperature, noise, electric current and outer seepage situation, confirm to turn round 45～100 minutes after the no abnormal phenomenon.
Claims (8)
1, a kind of hydraulic pump test stand, comprise tested pump testing (2), motor (4), fuel tank (1), Power Recovery motor (6) and corresponding connecting pipeline, motor (4) clutch end is connected with tested pump testing (2) power intake, motor (4) power intake is connected with the clutch end of Power Recovery motor (6), the oil outlet of tested pump testing (2) is connected with the filler opening pipeline of Power Recovery motor (6), the filler opening of tested pump testing (2) is connected with fuel tank (1) pipeline, the oil outlet of Power Recovery motor (6) is connected with fuel tank (1) pipeline, it is characterized in that this test stand comprises that also one is used for the auxilliary pump (12) of assistant starting motor (4), the filler opening that should assist pump (12) is connected with described fuel tank (1) pipeline, and the oil outlet of this auxilliary pump (12) is connected with the filler opening pipeline of Power Recovery motor (6).
2, hydraulic pump test stand according to claim 1, it is characterized in that being provided with first one-way valve (7) between described Power Recovery motor (6) and tested pump testing (2) pipeline, be provided with second one-way valve between described Power Recovery motor (6) and auxilliary pump (12) pipeline.
3, hydraulic pump test stand according to claim 2 is characterized in that the oil outlet pipeline of described auxilliary pump (12) also is connected with an auxilliary relief valve (14) that links to each other with fuel tank (1) pipeline.
4,, it is characterized in that the oil outlet pipeline of described tested pump testing (2) is connected with a pressure gauge (5) according to claim 1 or 2 or 3 described hydraulic pump test stands.
5,, it is characterized in that having between described tested pump testing (2) and motor (4) clutch end rotational speed and torque instrument (3) that is used to measure tested revolution speed, torque and power according to claim 1 or 2 or 3 described hydraulic pump test stands.
6,, it is characterized in that the oil outlet pipeline of described auxilliary pump (12) is connected with an auxilliary pressure gauge (13) according to claim 1 or 2 or 3 described hydraulic pump test stands.
7,, it is characterized in that also being connected with charge valve (8), cooler (9) and oil purifier (10) in turn between the oil outlet of described tested pump testing (2) and fuel tank (1) pipeline according to claim 1 or 2 or 3 described hydraulic pump test stands.
8, according to according to claim 1 or 2 or 3 described hydraulic pump test stands, it is characterized in that described fuel tank (1) is provided with liquid level thermometer (16) and air-strainer (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008101201572A CN100547243C (en) | 2008-07-24 | 2008-07-24 | Hydraulic pump test stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008101201572A CN100547243C (en) | 2008-07-24 | 2008-07-24 | Hydraulic pump test stand |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101328881A CN101328881A (en) | 2008-12-24 |
| CN100547243C true CN100547243C (en) | 2009-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2008101201572A Expired - Fee Related CN100547243C (en) | 2008-07-24 | 2008-07-24 | Hydraulic pump test stand |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545481B (en) * | 2009-05-07 | 2011-11-30 | 武汉大学 | Multifunctional pump system test bed and control method thereof |
| CN102493954B (en) * | 2011-11-09 | 2014-04-30 | 中航力源液压股份有限公司 | On-line environment high-temperature test chamber for aviation kerosene hydraulic pump |
| CN102562563B (en) * | 2012-01-11 | 2014-10-01 | 福州大学 | Energy-saving stepless pressure regulating type hydraulic system for high-pressure pump performance test bench |
| CN102937125B (en) * | 2012-11-06 | 2016-04-06 | 三一汽车制造有限公司 | Oil hydraulic motor pilot system |
| CN103343742B (en) * | 2013-07-05 | 2015-05-27 | 合肥工业大学 | Testing system and testing method for characteristics of plunger pump |
| CN103511396B (en) * | 2013-09-03 | 2016-01-20 | 燕山大学 | Based on oil hydraulic pump and the oil hydraulic motor reliability test of power recovery technology |
| CN103511397B (en) * | 2013-09-03 | 2016-06-15 | 燕山大学 | A kind of axial plunger pump and motor reliability test method |
| CN103775436B (en) * | 2014-01-21 | 2016-08-17 | 燕山大学 | The parallel hydraulic pump of modular and the energy-conservation reliability test of hydraulic motor multimachine |
| CN103775326A (en) * | 2014-02-21 | 2014-05-07 | 厦门伍纵船舶液压技术有限公司 | Power recovery test-bed for mechanical-compensation type hydraulic pump |
| CN106124189A (en) * | 2016-08-29 | 2016-11-16 | 中国人民解放军空军第航空学院 | Novel emergency oil pump detection device |
| CN106763004B (en) * | 2017-02-07 | 2018-08-28 | 宁波恒力液压股份有限公司 | A kind of hydraulic pump intelligent filtering structure |
| CN107178539A (en) * | 2017-06-19 | 2017-09-19 | 镇江四联机电科技有限公司 | A kind of hydraulic pump Power Recovery testing stand |
-
2008
- 2008-07-24 CN CNB2008101201572A patent/CN100547243C/en not_active Expired - Fee Related
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| CN101328881A (en) | 2008-12-24 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NINGBO HENGLI HYDRAULIC CO., LTD. Free format text: FORMER NAME: NINGBO HILEAD HYDRAULIC MACHINERY MANUFACTURING CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 315040 568 Jiangnan Road, Jiangdong District, Zhejiang, Ningbo Patentee after: Ningbo Hengli Hydraulic Co., Ltd. Address before: 315040 568 Jiangnan Road, Jiangdong District, Zhejiang, Ningbo Patentee before: Ningbo Hilead Hydraulic Machinery Manufacturing Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091007 Termination date: 20190724 |