CN201228627Y - Test stand for hydraulic pump - Google Patents
Test stand for hydraulic pump Download PDFInfo
- Publication number
- CN201228627Y CN201228627Y CNU2008201219514U CN200820121951U CN201228627Y CN 201228627 Y CN201228627 Y CN 201228627Y CN U2008201219514 U CNU2008201219514 U CN U2008201219514U CN 200820121951 U CN200820121951 U CN 200820121951U CN 201228627 Y CN201228627 Y CN 201228627Y
- Authority
- CN
- China
- Prior art keywords
- pump
- motor
- pipeline
- tested
- power recovery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
A hydraulic pump test bed comprises a pump (2) to be tested, a motor (4), an oil tank (1), a power recovery motor (6), and corresponding connection pipes, wherein the power output end of the motor (4) is connected with the power input end of the pump (2) to be tested; the power input end of the motor (4) is connected with the power output end of the power recovery motor (6); the oil outlet of the pump (2) to be tested is connected with the oil inlet of the power recovery motor (6) through a pipe; the oil inlet of the pump (2) to be tested is connected with the oil tank (1) through a pipe; and the oil outlet of the power recovery motor (6) is connected with the oil tank (1) through a pipe. The hydraulic pump test bed is characterized in that the test bed also includes an auxiliary pump (12) for assisting in starting the motor (4); the oil inlet of the auxiliary pump (12) is connected with the oil tank (1) through a pipe; and the oil outlet of the auxiliary pump (12) is connected with the oil inlet of the power recovery motor (6) through a pipe. Compared with the prior art, the utiltiy model has the advantages of remarkably reduced start current and greatly reduced electric energy loss by adopting the small-power auxiliary pump to drive the motor in a hydraulic starting manner.
Description
Technical field
The utility model relates to a kind of hydraulic pump test stand, and 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.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of hydraulic pump test stand at the high power hydraulic pump at the above-mentioned state of the art, 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 utility model 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, advantage of the present utility model is: 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 utility model 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 utility model 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 11 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 (11) 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 |
|---|---|---|---|
| CNU2008201219514U CN201228627Y (en) | 2008-07-24 | 2008-07-24 | Test stand for hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201219514U CN201228627Y (en) | 2008-07-24 | 2008-07-24 | Test stand for hydraulic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201228627Y true CN201228627Y (en) | 2009-04-29 |
Family
ID=40633578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201219514U Expired - Lifetime CN201228627Y (en) | 2008-07-24 | 2008-07-24 | Test stand for hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201228627Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359880A (en) * | 2011-06-29 | 2012-02-22 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Detecting method of performances of four quadrant working of hydraulic pump motor |
| CN103511238A (en) * | 2013-10-16 | 2014-01-15 | 徐州科源液压股份有限公司 | Multiplex gear pump energy-saving testing bench |
| CN103775442A (en) * | 2014-01-14 | 2014-05-07 | 燕山大学 | Pump-controlled power recovery hydraulic control system of hydraulic cylinder testing test stand |
| CN107327429A (en) * | 2017-07-27 | 2017-11-07 | 上海电气液压气动有限公司 | A kind of hydraulic test system for being capable of axial force loading |
| CN112431751A (en) * | 2020-11-18 | 2021-03-02 | 京威汽车设备有限公司 | Device and method for detecting comprehensive performance of electromagnetic pump |
-
2008
- 2008-07-24 CN CNU2008201219514U patent/CN201228627Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359880A (en) * | 2011-06-29 | 2012-02-22 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Detecting method of performances of four quadrant working of hydraulic pump motor |
| CN102359880B (en) * | 2011-06-29 | 2013-07-17 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Detecting method of performances of four quadrant working of hydraulic pump motor |
| CN103511238A (en) * | 2013-10-16 | 2014-01-15 | 徐州科源液压股份有限公司 | Multiplex gear pump energy-saving testing bench |
| CN103511238B (en) * | 2013-10-16 | 2015-10-28 | 徐州科源液压股份有限公司 | Multi-gear pump energy conservation test platform |
| CN103775442A (en) * | 2014-01-14 | 2014-05-07 | 燕山大学 | Pump-controlled power recovery hydraulic control system of hydraulic cylinder testing test stand |
| CN103775442B (en) * | 2014-01-14 | 2016-06-22 | 燕山大学 | Hydraulic cylinder test bed pump control Power Recovery hydraulic control system |
| CN107327429A (en) * | 2017-07-27 | 2017-11-07 | 上海电气液压气动有限公司 | A kind of hydraulic test system for being capable of axial force loading |
| CN107327429B (en) * | 2017-07-27 | 2023-08-25 | 上海电气液压气动有限公司 | Hydraulic test system capable of loading axial force |
| CN112431751A (en) * | 2020-11-18 | 2021-03-02 | 京威汽车设备有限公司 | Device and method for detecting comprehensive performance of electromagnetic pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100547243C (en) | Hydraulic pump test stand | |
| CN103511396B (en) | Based on oil hydraulic pump and the oil hydraulic motor reliability test of power recovery technology | |
| CN201228627Y (en) | Test stand for hydraulic pump | |
| CN202900838U (en) | Bi-directional closed type loading return circuit system in test platform of hydraulic motor | |
| CN103775326A (en) | Power recovery test-bed for mechanical-compensation type hydraulic pump | |
| CN104454748A (en) | Reliable comprehensive energy-saving hydraulic test device for gear pumps, overflow valves and one-way valves | |
| CN202971851U (en) | Fan gear box oil change device | |
| CN108317132A (en) | A kind of control system preventing sand throwing extinguishing vehicle impeller rotation overload | |
| CN104454791A (en) | Parallel-energy-saving-technology-based hydraulic device for testing durability of hydraulic pumps and overflow valves | |
| CN203717315U (en) | Mechanical compensation-type hydraulic pump power recovery testboard | |
| CN105156403A (en) | Automatic power recycling testing platform for hydraulic pump and hydraulic motor | |
| CN204082707U (en) | A kind of EH petrol station for EH hydraulic control system | |
| CN202707690U (en) | Hydraulic system and engineering machinery | |
| CN202673655U (en) | Energy-saving hydraulic test bench | |
| CN103321975B (en) | A kind of low-high pressure soft start hydraulic oil source system | |
| CN106121991A (en) | A kind of vehicle air compressor performance test stand | |
| CN203335504U (en) | Power steering gear performance testing hydraulic device | |
| CN207297498U (en) | Hydraulic system for loading test | |
| CN107605837A (en) | Hydraulic system for loading test | |
| CN204312460U (en) | Based on the oil hydraulic pump of parallel power-saving technology and the endurance test hydraulic pressure installation of relief valve | |
| CN202006202U (en) | Pipeline flusher with variable output by frequency-conversion-motor-driven screw pumps | |
| CN103775436A (en) | Modularly-parallel, multi-machine and energy-saving reliability testing device for hydraulic pumps and hydraulic motors | |
| CN204716666U (en) | Based on oil hydraulic pump and the oil hydraulic motor durability test device of Power Recovery and parallel power-saving technology | |
| CN204575328U (en) | The test macro of checking engine PTO fan-out capability | |
| CN216518976U (en) | Test bed for hydraulic motor, hydraulic pump and rear axle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080724 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |