CN202673655U - Energy-saving hydraulic test bench - Google Patents
Energy-saving hydraulic test bench Download PDFInfo
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- CN202673655U CN202673655U CN 201220278893 CN201220278893U CN202673655U CN 202673655 U CN202673655 U CN 202673655U CN 201220278893 CN201220278893 CN 201220278893 CN 201220278893 U CN201220278893 U CN 201220278893U CN 202673655 U CN202673655 U CN 202673655U
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- pump
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- power recovery
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Abstract
An energy-saving hydraulic test bench comprises a power recovery motor, a motor, a testing pump, an oil tank and relative connection pipelines. A power output end of the motor is connected with a power input end of the testing pump. A power input end of the motor is connected with a power output end of the power recovery motor. An oil outlet of the testing pump is connected with an oil inlet of the power recovery motor through the pipeline. An oil inlet of the testing pump is connected with the oil tank through the pipeline. An oil outlet of the power recovery motor is connected with the oil tank through the pipeline. The energy-saving hydraulic test bench further comprises an auxiliary pump. An oil inlet of the auxiliary pump is connected with the oil tank through the pipeline. An oil outlet of the auxiliary pump is connected with the oil inlet of the power recovery motor through the pipeline. The energy-saving hydraulic test bench has the advantages that a hydraulic starting method of the auxiliary pump with small power is adopted to drive the motor to work, and starting current is reduced. The required starting current of a common test bench is more than 2000 amperes (A), but the required starting current of the energy-saving hydraulic test bench is less than 150A. Therefore, the energy-saving hydraulic test bench greatly reduces electric energy consumption, and is little in impact on normal operation of other devices in the same network when started and stopped frequently and in damage to electrical elements.
Description
Technical field
The utility model relates to a kind of hydraulic testing apparatus, is specially a kind of energy-conserving hydraulic test stand.
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, change in process rule etc. in process of the test.Early stage hydraulic pump test stand as shown in Figure 1, fuel tank la is connected by fluid circuit with test pump 2a, pressure gauge 5a links to each other with test pump 2a oil export with the pressure measurement flexible pipe, test pump 2a is connected by high-pressure rubber pipe with charge valve 6a, the return opening of charge valve 6a and cooler 7a, oil purifier 8a are connected fluid circuit with fuel tank Ia and connect, and fuel tank la is provided with liquid level liquid thermometer 10 and air-strainer 9a, motor 4a is connected with test pump 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 test pump, and by the filler opening of high-pressure rubber pipe arrival charge valve, the entrance of heating fluid from the oil outlet to the cooler after the charge valve overflow got back to fuel tank after fluid after the cooling filters by oil purifier, finish 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, with star triangular methods starting motor, after changing running state over to, check pressure gauge, should be shown as zero; Observe oil temperature, noise, electric current and outer seepage situation, confirm without running after unusual phenomenon 15-60 minute; At last, Load test: regulate the aperture of charge valve, the test pump is loaded, make the pressure gauge reading climbed, until maximum pressure; Observe oil temperature, noise, electric current and outer seepage situation, confirm without running after unusual phenomenon 45-100 minute.
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 to reduce oil liquid temperature, during a large amount of electric energy of need consumption.If the part of the energy that test-bed for pump is produced reclaims, not only can reduce the capacity of dragging motor, can also reduce the power of cooling unit simultaneously, save a large amount of electric energy, set up the Power Recovery motor at circulation loop for this reason.
Above-mentioned prior art is mainly tested some low power oil hydraulic pumps, when the powerful oil hydraulic pump of test, there are the following problems: at first, need to 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
The technical problem that the utility model solves is to provide a kind of energy-conserving hydraulic test stand, to solve the problem in the above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions:
A kind of energy-conserving hydraulic test stand, comprise the Power Recovery motor, motor, the test pump, fuel tank and corresponding connecting pipeline, described motor power output terminal is connected with test pump power input end, the motor power input end is connected with the clutch end of Power Recovery motor, the oil outlet of described test pump is connected with the filler opening pipeline of Power Recovery motor, the filler opening of test pump is connected with the fuel tank pipeline, the oil outlet of described Power Recovery motor is connected with the fuel tank pipeline, this test stand also comprises an auxiliary pump, the filler opening of this auxiliary pump is connected with the fuel tank pipeline, and oil outlet is connected with the filler opening pipeline of Power Recovery motor.
Be provided with the first one-way valve between described Power Recovery motor and the test pump line road, working connection is passed through, be provided with the second one-way valve between described Power Recovery motor and the auxiliary pump line road, auxiliary oil circuit is passed through, forbid that working connection passes through.
The oil outlet pipeline of described auxiliary pump also is connected with an auxiliary relief valve that links to each other with the fuel tank pipeline.
The oil outlet pipeline of described test pump is connected with a pressure gauge, show auxiliary pump oil pressure, be provided with between the described test Pump and Electromotor clutch end and be used for one by one measuring the test revolution speed, the rotational speed and torque instrument of torque and power, also be connected with charge valve in turn between the oil outlet of described test pump and the fuel tank pipeline, cooler and oil purifier, the oil outlet pipeline of described auxiliary pump is connected with an auxiliary pressure gauge, be used for surveying oil pressure, 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 ventilation, the effect of heat radiation.
Compared with prior art, the utility model has the advantage of: adopt low power auxiliary pump hydraulic starting mode to come drive motor work, inrush current obviously reduces, conventional test stand needs more than the 2000A, and the present invention then only needs to have saved the energy below the 150A, simultaneously, electric energy loss reduces greatly, and frequent starting and the normal influence on system operation that stops netting together other equipment are less, and be 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
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 2, a kind of energy-conserving hydraulic test stand, comprise Power Recovery motor 6, motor 4, test pump 2, fuel tank 1 and corresponding connecting pipeline, described motor 4 clutch ends are connected with test pump 2 power intakes, motor 4 power intakes are connected with the clutch end of Power Recovery motor 6, the oil outlet of described test pump 2 is connected with the filler opening pipeline of Power Recovery motor 6, the filler opening of test pump 2 is connected with the fuel tank pipeline, the oil outlet of described Power Recovery motor 6 is connected with fuel tank 1 pipeline, this test stand also comprises an auxiliary pump 12, the filler opening of auxiliary pump 12 is connected with fuel tank 1 pipeline, and oil outlet is connected with the filler opening pipeline of Power Recovery motor 6.
Be provided with the first one-way valve 7 between described Power Recovery motor 6 and test pump 2 pipelines, working connection is passed through, be provided with the second one-way valve 11 between described Power Recovery motor 6 and auxiliary pump 12 pipelines, auxiliary oil circuit is passed through, forbid that working connection passes through.
The oil outlet pipeline of described auxiliary pump 12 also is connected with an auxiliary relief valve 14 that links to each other with the fuel tank pipeline.
The oil outlet pipeline of described test pump 2 is connected with a pressure gauge 5, show auxiliary pump 12 oil pressure, be provided with one between described test pump 2 and motor 4 clutch ends and be used for measuring the rotational speed and torque instrument 3 of testing pump 2 rotating speeds, torque and power, also be connected with charge valve 8, cooler 9 and oil purifier 10 in turn between the oil outlet of described test pump 2 and fuel tank 1 pipeline; The oil outlet pipeline of described auxiliary pump 12 is connected with an auxiliary pressure gauge 13, is used for surveying oil pressure; Described fuel tank 1 is provided with liquid level thermometer 16 and air-strainer 15, and liquid level thermometer 16 can show fuel level in tank and temperature, and air-strainer 15 reaches the effect of ventilation, heat radiation.
Working principle:
The oil suction from fuel tank 1 of auxiliary pump 12, arrive Power Recovery motor 6 entrances by high-pressure rubber pipe, the second one-way valve 11, make Power Recovery motor 6 drive motors 4, rotational speed and torque instrument 3, tested pump testing 2 rotate actuating motor 4 after the arrival rated speed, simultaneously, stop auxiliary pump 12.The oil suction from fuel tank 1 of test pump 2, by the filler opening of pipeline arrival charge valve 8, heating fluid 9 entrances from the oil outlet to the cooler after charge valve 8 overflows are got back to fuel tank 1 after fluid after the cooling filters by oil purifier 10, finish circulation.Another road high pressure oil is got back to fuel tank to by regulating charge valve 8 apertures through Power Recovery motor 6 simultaneously, makes the system pressure lifting, and shows real-time pressure by pressure gauge 5; Show real-time fuel tank 1 temperature and level height by liquid level liquid thermometer 16.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof
Claims (4)
1. energy-conserving hydraulic test stand, comprise the Power Recovery motor, motor, the test pump, fuel tank and corresponding connecting pipeline, described motor power output terminal is connected with test pump power input end, the motor power input end is connected with the clutch end of Power Recovery motor, the oil outlet of described test pump is connected with the filler opening pipeline of Power Recovery motor, the filler opening of test pump is connected with the fuel tank pipeline, the oil outlet of described Power Recovery motor is connected with the fuel tank pipeline, it is characterized in that: this test stand also comprises an auxiliary pump, the filler opening of this auxiliary pump is connected with the fuel tank pipeline, and oil outlet is connected with the filler opening pipeline of Power Recovery motor.
2. a kind of energy-conserving hydraulic test stand according to claim 1 is characterized in that: be provided with the first one-way valve between described Power Recovery motor and the test pump line road, and be provided with the second one-way valve between the auxiliary pump line road.
3. a kind of energy-conserving hydraulic test stand according to claim 1, it is characterized in that: the oil outlet pipeline of described auxiliary pump also is connected with an auxiliary relief valve that links to each other with the fuel tank pipeline.
4. according to claim 1 and 2 or 3 described a kind of energy-conserving hydraulic test stands, it is characterized in that: the oil outlet pipeline of described test pump is connected with a pressure gauge, be provided with a rotational speed and torque instrument between the described test Pump and Electromotor clutch end, also be connected with charge valve, cooler and oil purifier in turn between the oil outlet of described test pump and the fuel tank pipeline, the oil outlet pipeline of described auxiliary pump is connected with an auxiliary pressure gauge, and described fuel tank is provided with liquid level thermometer and air-strainer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220278893 CN202673655U (en) | 2012-06-14 | 2012-06-14 | Energy-saving hydraulic test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220278893 CN202673655U (en) | 2012-06-14 | 2012-06-14 | Energy-saving hydraulic test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673655U true CN202673655U (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220278893 Expired - Fee Related CN202673655U (en) | 2012-06-14 | 2012-06-14 | Energy-saving hydraulic test bench |
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| Country | Link |
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| CN (1) | CN202673655U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104196707A (en) * | 2014-08-18 | 2014-12-10 | 南京创贝高速传动机械有限公司 | Oil injection and returning pump and cooling pump test table |
| RU197375U1 (en) * | 2020-01-23 | 2020-04-23 | Общество с ограниченной ответственностью научно-производственное предприятие "ЛЕСПРОМСЕРВИС" (ООО НПП "ЛЕСПРОМСЕРВИС") | HYDRAULIC TEST STAND |
-
2012
- 2012-06-14 CN CN 201220278893 patent/CN202673655U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104196707A (en) * | 2014-08-18 | 2014-12-10 | 南京创贝高速传动机械有限公司 | Oil injection and returning pump and cooling pump test table |
| CN104196707B (en) * | 2014-08-18 | 2016-05-18 | 南京创贝高速传动机械有限公司 | A kind of note scavenge oil pump, coolant pump testing stand |
| RU197375U1 (en) * | 2020-01-23 | 2020-04-23 | Общество с ограниченной ответственностью научно-производственное предприятие "ЛЕСПРОМСЕРВИС" (ООО НПП "ЛЕСПРОМСЕРВИС") | HYDRAULIC TEST STAND |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20140614 |
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| EXPY | Termination of patent right or utility model |