CN103511238B - Multi-gear pump energy conservation test platform - Google Patents
Multi-gear pump energy conservation test platform Download PDFInfo
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- CN103511238B CN103511238B CN201310486141.4A CN201310486141A CN103511238B CN 103511238 B CN103511238 B CN 103511238B CN 201310486141 A CN201310486141 A CN 201310486141A CN 103511238 B CN103511238 B CN 103511238B
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Abstract
The present invention announces a kind of multi-gear pump energy conservation test platform being applicable to various multi-gear pump Performance Detection and Reliability Check, relates to a kind of test stand.Comprise tested multi-gear pump, loading element, synchronous gear box, power compensation element, Detecting element, self-loopa filtration cooling unit and fuel tank.Tested multi-gear pump and loading oil hydraulic motor machinery are connected together by synchronous gear box by the present invention, load power and load that oil hydraulic motor is tested multi-gear pump simultaneously, and adopt cubage compensation pump and mechanical compensation motor to realize power compensation, realize the recovery of power generally.Its structure is simple, and Power Recovery is effective, and operational safety is high, practical.
Description
Technical field
The present invention relates to a kind of test stand, especially a kind of multi-gear pump energy conservation test platform being applicable to various multi-gear pump Performance Detection and Reliability Check.
Background technique
Duplex, three or four-gear block pump performance test, Reliability Check need carry out on test stand.Existing test stand adopts overflow throttle style to implement to load all completely, the energy that motor exports almost all is converted into heat energy, this makes test energy consumption very large on the one hand, on the other hand because the heating of fluid also needs to set up cooling unit, separately need consume extra electric energy.When particularly carrying out high pressure, large discharge test, energy consumption is very large especially.At present, though there is the energy conservation test method adopting Power Recovery mode, all carry out for single pump, and energy-saving effect is unsatisfactory.For duplex, three or four-gear block pump, because the rated pressure of each pump, flow are all incomplete same, existing energy conservation test means are also inapplicable.
Summary of the invention
For solving the problems of the technologies described above, the invention provides and a kind ofly be adapted to simply connected, duplex, three and the multi-gear pump energy conservation test platform of tetrad.
Technological scheme of the present invention is: a kind of multi-gear pump energy conservation test platform, comprises tested multi-gear pump, loading element, synchronous gear box, power compensation element, Detecting element, self-loopa filtration cooling unit and fuel tank; Described Detecting element comprises pressure gauge, flowmeter and torque speed sensor; Described power compensation element comprises a mechanical compensation oil hydraulic motor and multiple cubage compensation pump; Each inlet port by pump testing of described tested multi-gear pump is interconnected and communicates with fuel tank, is connected after being respectively connected in series one-way valve respectively by the outlet line of pump testing with the oil outlet of a cubage compensation pump with the filler opening of the loading oil hydraulic motor of in loading element again;
The output shaft of the loading oil hydraulic motor in described loading element is connected with a power input shaft of synchronous gear box respectively; The oil outlet loading oil hydraulic motor is interconnected and is communicated with fuel tank by a return filter;
One end of the pto＝power take-off of described synchronous gear box is connected by the pump shaft of coupling with tested multi-gear pump, and the other end is connected with the output shaft of mechanical compensation oil hydraulic motor in power compensation element;
The filler opening of described mechanical compensation oil hydraulic motor is connected with the oil outlet of V cubage compensation pump in cubage compensation pump, and the oil outlet of mechanical compensation oil hydraulic motor is connected with the oil outlet loading oil hydraulic motor;
The inlet port of described cubage compensation pump is interconnected and is communicated with fuel tank by oil absorption filter; Cubage compensation pumps oil port and is all provided with a relief valve;
Described pressure gauge is arranged on the filler opening place of each tested delivery side of pump place and mechanical compensation oil hydraulic motor; Described flowmeter is serially connected on each tested oil pump outlet line road; Described torque speed sensor to be arranged between tested multi-gear pump and the pto＝power take-off of synchronous gear box on mechanical connecting device;
Described self-loopa is filtered cooling unit and is comprised metering pump, low-pressure filter and multiple cooler; The inlet port of metering pump is communicated with fuel tank; Low-pressure filter is arranged on the oil outlet pipeline of metering pump; The oil outlet of low-pressure filter is communicated with fuel tank with I cooler by another II ball valve with fuel tank connected sum respectively by I ball valve.
It is further: described respectively the outlet line of pump testing is provided with two and the ball valve connected and a filter-press.
Described flowmeter to be serially connected on each tested oil pump outlet line road two and after connecting a ball valve in ball valve.
The discharge capacity of the loading oil hydraulic motor in described loading element is identical with the tested pump delivery in its corresponding tested multi-gear pump be connected.
The number of the power input shaft of described synchronous gear box is identical with the number loading oil hydraulic motor.
Described
The oil outlet of described low-pressure filter is communicated with fuel tank with II cooler by III ball valve.
Beneficial effect of the present invention is:
1, tested multi-gear pump and loading oil hydraulic motor machinery are connected together by synchronous gear box by the present invention, load power and load that oil hydraulic motor is tested multi-gear pump simultaneously, and adopt cubage compensation pump and mechanical compensation motor to realize power compensation, realize the recovery of power generally.
2, because each loading oil hydraulic motor is identical with each Theoretical flowing capacity by pump testing, need the flow of compensation little, namely excess flow is also little, so good energy-conserving effect.
3, each connection is had a loading oil hydraulic motor corresponding with a cubage compensation pump by pump testing, realizes each pressure by pump testing and regulates.
4, each connection the outlet line of pump testing is provided with a fine filter, and is provided with an independent self-loopa filtration cooling unit, ensures the turbidity test of fluid and suitable temperature.Its structure is simple, and Power Recovery is effective, and operational safety is high, practical.
Accompanying drawing explanation
Fig. 1 is theory structure sketch of the present invention;
In figure: 1-fuel tank; 2-oil absorption filter; 3-I cubage compensation pump; 4-II cubage compensation pump; 5-III cubage compensation pump; 6-IV cubage compensation pump; 7-V cubage compensation pump; 8-I relief valve; 9-II relief valve; 10-III relief valve; 11-IV relief valve; 12-V relief valve; 13-I loads oil hydraulic motor; 14-II loads oil hydraulic motor; 15-III loads oil hydraulic motor; 16-IV loads oil hydraulic motor; 17-mechanical compensation oil hydraulic motor; 18-synchronous gear box; 19-torque speed sensor; 20-I filter-press; 21-II filter-press; 22-III filter-press; 23-IV filter-press; 24-I flowmeter; 25-II flowmeter; 26-III flowmeter; 27-IV flowmeter; 28-I is by pump testing; 29-II is by pump testing; 30-III is by pump testing; 31-IV is by pump testing; 32-metering pump; 33-low-pressure filter; 34-I ball valve; 35-II ball valve; 36-I cooler; 37-return filter; 38-III ball valve; 39-II cooler.
Embodiment
Be below a specific embodiment of the present invention, the present invention will be further described by reference to the accompanying drawings.
As shown in Figure 1, multi-gear pump energy conservation test platform, comprises tested multi-gear pump, loading element, synchronous gear box 18, power compensation element, Detecting element, self-loopa filtration cooling unit and fuel tank 1.Loading element comprises I loading oil hydraulic motor 13, II and loads oil hydraulic motor 14, III loading oil hydraulic motor 15 and IV loading oil hydraulic motor 16.Synchronous gear box 18 is made up of casing, gear, four power input shafts and a pto＝power take-off.Power compensation element comprises a mechanical compensation oil hydraulic motor 17 and five cubage compensation pumps 3,4,5,6,7.
The four-gear block pump that tested multi-gear pump is formed by pump testing 31 by pump testing 30, IV by pump testing 29, III by pump testing 28, II by I.By pump testing 28,29,30, the outlet line of 31 is provided with two and the ball valve connected, its inlet port is interconnected and communicates with fuel tank 1; I is connected with I filler opening loading oil hydraulic motor 13 with the oil outlet of I cubage compensation pump 3 with an one-way valve by I filter-press 20 by pump testing 28 simultaneously; II is connected with II filler opening loading oil hydraulic motor 14 with the oil outlet of II cubage compensation pump 4 with an one-way valve by II filter-press 21 by pump testing 29 simultaneously; III is connected with III filler opening loading oil hydraulic motor 15 with the oil outlet of III cubage compensation pump 5 with an one-way valve by III filter-press 22 by pump testing 30 simultaneously; IV is connected with IV filler opening loading oil hydraulic motor 16 with the oil outlet of IV cubage compensation pump 6 with an one-way valve by IV filter-press 23 by pump testing 31 simultaneously.
The output shaft of each loading oil hydraulic motor 13,14,15,16 is connected with a power input shaft of synchronous gear box 18 respectively; Each loading oil hydraulic motor 13,14, the oil outlet of 15,16 is interconnected and is communicated with fuel tank 1 by return filter 37.The displacement size of each loading oil hydraulic motor 13,14,15,16 respectively corresponding with it be connected each tested 28,29,30,31 is identical.
One end of the pto＝power take-off of synchronous gear box 18 is connected by the pump shaft of coupling with tested multi-gear pump, and the other end is connected with the axle of the mechanical compensation oil hydraulic motor 17 of power compensation element.
Five cubage compensation pumps 3,4,5,6,7 are volume adjustable hydraulic pump, and their inlet port is interconnected and is communicated with fuel tank 1 by oil absorption filter 2; The oil outlet place of I cubage compensation pump 3 is provided with I relief valve 8, and loads oil hydraulic motor 13 by oil pipe and I and be connected; The oil outlet place of II cubage compensation pump 4 is provided with II relief valve 9, and loads oil hydraulic motor 14 by oil pipe and II and be connected; The oil outlet place of III cubage compensation pump 5 is provided with III relief valve 10, and loads oil hydraulic motor 15 by oil pipe and III and be connected; The oil outlet place of IV cubage compensation pump 6 is provided with IV relief valve 11, and loads oil hydraulic motor 16 by oil pipe and IV and be connected; The oil outlet place of V cubage compensation pump 7 is provided with V relief valve 12, and is connected by the filler opening of oil pipe with mechanical compensation oil hydraulic motor 17, and the oil outlet of mechanical compensation oil hydraulic motor 17 and each loading oil hydraulic motor 13,14, the oil outlet of 15,16 is connected.
Detecting element comprises I flowmeter 24, II flowmeter 25, III flowmeter 26, IV flowmeter 27, torque speed sensor 19 and five pressure gauges; Each flowmeter 24,25,26,27 is serially connected in tested multi-gear pump respectively and respectively joins on oil pump outlet line road two and after connecting a ball valve in ball valve; Torque speed sensor 19 is arranged on the mechanical connecting device between tested multi-gear pump and synchronous gear box 18 pto＝power take-off; Five pressure gauges are arranged on each by pump testing 28 respectively, the outlet port of 29,30,31 and the filler opening place of mechanical compensation oil hydraulic motor 17.
Self-loopa is filtered cooling unit and is comprised metering pump 32, low-pressure filter 33, three ball valves and two coolers; The inlet port of metering pump 32 is communicated with fuel tank 1, and low-pressure filter 33 is arranged on its oil outlet pipeline; The oil outlet of low-pressure filter 33 is communicated with fuel tank 1 respectively by I ball valve 34; The oil outlet of low-pressure filter 33 is communicated with fuel tank 1 with I cooler 36 by II ball valve 35; The oil outlet of low-pressure filter 33 is communicated with fuel tank 1 with II cooler 39 by III ball valve 38.
Working principle is as follows:
First, the set pressure of I relief valve 8, II relief valve 9, III relief valve 10, IV relief valve 11 and V relief valve 12 is transferred to minimum, the discharge capacity of I cubage compensation pump 3, II cubage compensation pump 4, III cubage compensation pump 5, IV cubage compensation pump 6 and V cubage compensation pump 7 is transferred to minimum, and as required by each by pump testing 28,29, open for one in 30,31 outlet line and in connect two ball valves; Actuating motor afterwards, makes each cubage compensation pump 3,4,5,6,7 no load runnings.
Secondly, V relief valve 12 pressure is transferred to the rated pressure value of cubage compensation pump 7; Successively the set pressure of I relief valve 8, II relief valve 9, III relief valve 10 and IV relief valve 11 is heightened required force value, tested gear pump is rotated.
Then, increase each cubage compensation pump 3,4 gradually simultaneously, 5,6, the discharge capacity of 7, and coordinate the pressure of adjustment I relief valve 8, II relief valve 9, III relief valve 10 and IV relief valve 11, and until make each by pump testing 28,29,30,31 reach its rated speed, make each by pump testing 28,29,30, till the outlet pressure of 31 reaches the force value required by test, and the spillway discharge of I relief valve 8, II relief valve 9, III relief valve 10 and IV relief valve 11 is made to remain on smaller value.At this moment, respectively by pump testing 28,29,30,31 pressure oils exported enter each loading oil hydraulic motor 13,14, the entrance of 15,16 by each filter-press 20,21,22,23 and one-way valve respectively successively, implement Power Recovery.
The rotating speed of tested multi-gear pump and input torque detect by torque speed sensor 19, and experiment work pressure detects by each pressure gauge, and actual output flow is by each flowmeter 24,25,26, and 27 detect.
During system works, filtered by each filter-press 20,21,22,23 and return filter 37 pairs of hydraulic oil.If when needing to carry out circulating filtration to hydraulic oil, open I ball valve 34 or II ball valve 35, start metering pump 32, by the oily sucking-off in fuel tank and after low-pressure filter 33 filters, directly enter oil sump tank through I ball valve 34, or return fuel tank through II ball valve 35 and cooler 36.
Claims (6)
1. a multi-gear pump energy conservation test platform, comprises tested multi-gear pump, loading element, synchronous gear box (18), power compensation element, Detecting element, self-loopa filtration cooling unit and fuel tank (1); Described Detecting element comprises pressure gauge, flowmeter and torque speed sensor (19); Described power compensation element comprises a mechanical compensation oil hydraulic motor (17) and multiple cubage compensation pump (3,4,5,6) and a V cubage compensation pump (7); It is characterized in that:
Each inlet port by pump testing (28,29,30,31) of described tested multi-gear pump is interconnected and communicates with fuel tank (1), is connected after being respectively connected in series one-way valve respectively by the outlet line of pump testing (28,29,30,31) with the oil outlet of a cubage compensation pump (3,4,5,6) with the filler opening of the loading oil hydraulic motor of in loading element (13,14,15,16) again;
The output shaft of the loading oil hydraulic motor (13,14,15,16) in described loading element is connected with a power input shaft of synchronous gear box (18) respectively; The oil outlet loading oil hydraulic motor (13,14,15,16) is interconnected and is communicated with fuel tank (1) by a return filter (37);
One end of the pto＝power take-off of described synchronous gear box (18) is connected by the pump shaft of coupling with tested multi-gear pump, and the other end is connected with the output shaft of mechanical compensation oil hydraulic motor (17) in power compensation element;
The filler opening of described mechanical compensation oil hydraulic motor (17) is connected with the oil outlet of V cubage compensation pump (7), and the oil outlet of mechanical compensation oil hydraulic motor (17) is connected with the oil outlet loading oil hydraulic motor (13,14,15,16);
Described multiple cubage compensation pumps (3,4,5,6) are interconnected with the inlet port of a V cubage compensation pump (7) and are communicated with fuel tank (1) by oil absorption filter (2); Multiple cubage compensation pump (3,4,5,6) and V cubage compensation pump (7) oil outlet place are all provided with a relief valve (8,9,10,11,12);
Described pressure gauge is arranged on each by the filler opening place of the outlet port of pump testing (28,29,30,31) and mechanical compensation oil hydraulic motor (17); Described flowmeter (24,25,26,27) is serially connected in each by pump testing (28,29,30,31) outlet line; Between the pto＝power take-off that described torque speed sensor (19) is arranged on tested multi-gear pump and synchronous gear box (18) on mechanical connecting device;
Described self-loopa is filtered cooling unit and is comprised metering pump (32), low-pressure filter (33) and multiple cooler (36); The inlet port of metering pump (32) is communicated with fuel tank (1); Low-pressure filter (33) is arranged on the oil outlet pipeline of metering pump (32); The oil outlet of low-pressure filter (33) is communicated with fuel tank (1) with I cooler (36) by another II ball valve (35) with fuel tank (1) connected sum respectively by I ball valve (34).
2. multi-gear pump energy conservation test platform according to claim 1, is characterized in that: described respectively the outlet line of pump testing (28,29,30,31) is provided with two ball valves in parallel and a filter-press (20,21,22,23).
3. multi-gear pump energy conservation test platform according to claim 1 and 2, is characterized in that: described flowmeter (24,25,26,27) is serially connected in each by after a ball valve in two ball valves in parallel in pump testing (28,29,30,31) outlet line.
4. multi-gear pump energy conservation test platform according to claim 1, is characterized in that: the discharge capacity of the loading oil hydraulic motor (13,14,15,16) in described loading element and identical by the discharge capacity of pump testing (28,29,30,31) in its corresponding tested multi-gear pump be connected.
5. multi-gear pump energy conservation test platform according to claim 1, is characterized in that: the number of the power input shaft of described synchronous gear box (18) is identical with the number loading oil hydraulic motor (13,14,15,16).
6. multi-gear pump energy conservation test platform according to claim 1, is characterized in that: the oil outlet of described low-pressure filter (33) is communicated with fuel tank (1) with II cooler (39) by III ball valve (38).
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| CN201310486141.4A CN103511238B (en) | 2013-10-16 | 2013-10-16 | Multi-gear pump energy conservation test platform |
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| CN201310486141.4A CN103511238B (en) | 2013-10-16 | 2013-10-16 | Multi-gear pump energy conservation test platform |
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| CN103511238B true CN103511238B (en) | 2015-10-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106194739B (en) * | 2016-08-26 | 2018-06-15 | 南京航健航空装备技术服务有限公司 | A kind of gear pump detection device |
| CN107605722A (en) * | 2017-10-20 | 2018-01-19 | 四川川润液压润滑设备有限公司 | A kind of efficiency of pump detection means and its detection method |
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Effective date of registration: 20171225 Address after: 221000 Jiangsu Province, Xuzhou City Economic Development Zone Industrial Park, No. 2 Ruijialu Temple Patentee after: Xuzhou Licheng Hydraulic Equipment Co., Ltd. Address before: Ganjiang road Copper Mt. District 221116 Jiangsu city of Xuzhou Province, No. 6 Co-patentee before: Xuzhou Mingshuo Machinery Technology Co., Ltd. Patentee before: Xuzhou Keyuan Hydraulics Co., Ltd. |
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Effective date of registration: 20190107 Address after: No. 10 Jingwei Road, Happy Technology Industrial Development Zone, Xuzhou City, Jiangsu Province, 221000 Patentee after: Global Precision Steel Tube Co., Ltd. Address before: 221000 Ruijia Road, Damiao Industrial Park, Xuzhou Economic Development Zone, Jiangsu Province Patentee before: Xuzhou Licheng Hydraulic Equipment Co., Ltd. |
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Denomination of invention: Multiplex gear pump energy-saving testing bench Effective date of registration: 20200723 Granted publication date: 20151028 Pledgee: Bank of China Limited by Share Ltd. Xuzhou Copper Mt branch Pledgor: XUZHOU GLOBAL PRECISION STEEL TUBE Co.,Ltd. Registration number: Y2020980004349 |