CN203516054U - Multigang gear pump energy saving test bed - Google Patents
Multigang gear pump energy saving test bed Download PDFInfo
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- CN203516054U CN203516054U CN201320639842.2U CN201320639842U CN203516054U CN 203516054 U CN203516054 U CN 203516054U CN 201320639842 U CN201320639842 U CN 201320639842U CN 203516054 U CN203516054 U CN 203516054U
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- pump
- hydraulic motor
- oil hydraulic
- gear pump
- compensation
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Abstract
The utility model discloses a multigang gear pump energy saving test bed suitable for performance detection and reliability assessment on all multigang gear pumps and relates to a test bed. The multigang gear pump energy saving test bed comprises a multigang gear pump to be tested, a loading element, a synchronous gear box, a power compensation element, a detection element, a self-circulation filter cooling device and an oil tank. The multigang gear pump to be tested is mechanically connected with a loading hydraulic motor through the synchronous gear box, the loading hydraulic motor serves as power and load of the multigang gear pump, power compensation is achieved through a volume compensation pump and a mechanical compensation motor, and recycle of power is achieved on the whole. The multigang gear pump energy saving test bed is simple in structure, good in power recycle effect, high in usage reliability and strong in practicability.
Description
Technical field
The utility model relates to a kind of test stand, especially a kind of energy-conservation test stand of multi-gear pump that is 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 on test stand, carry out.Existing test stand all adopts overflow throttle style to implement to load completely, the energy of motor output is almost all converted into heat energy, it is very large that this makes to test energy consumption on the one hand, and the heating because of fluid also needs to set up cooling unit on the other hand, separately needs to consume extra electric energy.While particularly carrying out high pressure, large flow test, energy consumption is very large especially.At present, though there is the energy-conservation test method that adopts Power Recovery mode, all for single pump, carry out, and energy-saving effect is unsatisfactory.For duplex, three or four-gear block pump, because rated pressure, flow of each connection pump are all incomplete same, existing energy-conservation research technique is also inapplicable.
Model utility content
For solving the problems of the technologies described above, the utility model provides a kind of simply connected, duplex, three and the energy-conservation test stand of multi-gear pump of tetrad of being adapted to.
The technical solution of the utility model is: the energy-conservation test stand of a kind of multi-gear pump, 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 a plurality of cubage compensation pump; Each of described tested multi-gear pump is interconnected by the inlet port of pump testing and communicates with fuel tank, after each is connected in series respectively one-way valve by the fuel-displaced pipeline of pump testing, is connected with the oil outlet of a compensated pump and the filler opening of a loading oil hydraulic motor 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 that loads 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 with the pump shaft of tested multi-gear pump by coupling, 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 compensated pump in cubage compensation pump, and the oil outlet of mechanical compensation oil hydraulic motor is connected with the oil outlet that loads 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 a relief valve is all installed;
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 is 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 a plurality of 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 by another II ball valve and I cooler with fuel tank connected sum by an I ball valve respectively.
It is further: described each is provided with two and the ball valve and the filter-press that connect on fuel-displaced pipeline of pump testing.
Described flowmeter be serially connected on each tested oil pump outlet line road two and connect a ball valve in ball valve after.
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 being connected.
The number of the power input shaft of described synchronous gear box is identical with the number that loads oil hydraulic motor.
Described
The oil outlet of described low-pressure filter is communicated with fuel tank by III ball valve and II cooler.
The utility model beneficial effect is:
1, the utility model is connected together tested multi-gear pump and loading oil hydraulic motor machinery by synchronous gear box, load oil hydraulic motor is power and the load of tested multi-gear pump simultaneously, and adopt cubage compensation pump and mechanical compensation motor to realize power compensation, realize generally the recovery of power.
2, because each loading oil hydraulic motor is identical with each Theoretical flowing capacity by pump testing, need the flow of compensation little, 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 connection and is regulated by the pressure of pump testing.
4, each connection is provided with a fine filter on the fuel-displaced pipeline of pump testing, and is provided with an independent self-loopa filtration cooling unit, guarantees the turbidity test of fluid and suitable temperature.It is simple in structure, and Power Recovery is effective, and operational safety is high, practical.
Accompanying drawing explanation
Fig. 1 is theory structure sketch of the present utility model;
In figure: 1-fuel tank; 2-oil absorption filter; 3-I compensated pump; 4-II compensated pump; 5-III compensated pump; 6-IV compensated pump; 7-V compensated 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 utility model, by reference to the accompanying drawings the utility model be described further.
As shown in Figure 1, the energy-conservation test stand of multi-gear pump, 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 that I loads oil hydraulic motor 13, II loads oil hydraulic motor 14, III loading oil hydraulic motor 15 and IV and loads oil hydraulic motor 16.Synchronous gear box 18 is comprised 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 comprised of by pump testing 31 by pump testing 30, IV by pump testing 29, III by pump testing 28, II I.By pump testing 28,29, two and the ball valve that connects are installed on 30,31 fuel-displaced pipeline, its inlet port is interconnected and communicates with fuel tank 1; I is connected with the filler opening that oil outlet and the I of I compensated pump 3 load oil hydraulic motor 13 by I filter-press 20 and an one-way valve by pump testing 28 simultaneously; II is connected with the filler opening that oil outlet and the II of II compensated pump 4 load oil hydraulic motor 14 by II filter-press 21 and an one-way valve by pump testing 29 simultaneously; III is connected with the filler opening that oil outlet and the III of III compensated pump 5 load oil hydraulic motor 15 by III filter-press 22 and an one-way valve by pump testing 30 simultaneously; IV is connected with the filler opening that oil outlet and the IV of IV compensated pump 6 load oil hydraulic motor 16 by IV filter-press 23 and an one-way valve by pump testing 31 simultaneously.
Each loads oil hydraulic motor 13,14, and 15,16 output shaft is connected with a power input shaft of synchronous gear box 18 respectively; Each loads oil hydraulic motor 13,14, and 15,16 oil outlet is interconnected and passes through return filter 37 and is communicated with fuel tank 1.Each loads oil hydraulic motor 13,14,15,16 displacement size respectively corresponding with it be connected each is tested 28,29,30,31 is identical.
One end of the pto＝power take-off of synchronous gear box 18 is connected with the pump shaft of tested multi-gear pump by coupling, 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 passes through oil absorption filter 2 and is communicated with fuel tank 1; The oil outlet place of I compensated pump 3 is provided with I relief valve 8, and is connected by oil pipe and I loading oil hydraulic motor 13; The oil outlet place of II compensated pump 4 is provided with II relief valve 9, and is connected by oil pipe and II loading oil hydraulic motor 14; The oil outlet place of III compensated pump 5 is provided with III relief valve 10, and is connected by oil pipe and III loading oil hydraulic motor 15; The oil outlet place of IV compensated pump 6 is provided with IV relief valve 11, and is connected by oil pipe and IV loading oil hydraulic motor 16; The oil outlet place of V compensated pump 7 is provided with V relief valve 12, and is connected with the filler opening of mechanical compensation oil hydraulic motor 17 by oil pipe, and the oil outlet of mechanical compensation oil hydraulic motor 17 and each oil outlet that loads oil hydraulic motor 13,14,15,16 are 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 be serially connected in respectively tested multi-gear pump respectively join on oil pump outlet line road two and connect a ball valve in ball valve after; Torque speed sensor 19 is arranged on the mechanical connecting device between tested multi-gear pump and synchronous gear box 18 pto＝power take-offs; Five pressure gauges are arranged on respectively each by pump testing 28,29, the filler opening place of 30,31 outlet port and 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 by I ball valve 34 respectively; The oil outlet of low-pressure filter 33 is communicated with fuel tank 1 by II ball valve 35 and I cooler 36; The oil outlet of low-pressure filter 33 is communicated with fuel tank 1 by III ball valve 38 and II cooler 39.
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 compensated pump 3, II compensated pump 4, III compensated pump 5, IV compensated pump 6 and V compensated pump 7 is transferred to minimum, and as required by each by pump testing 28,29, open for one on 30,31 fuel-displaced pipelines and in two ball valves that connect; Actuating motor, makes each compensated pump 3,4,5,6,7 no load runnings afterwards.
Secondly, V relief valve 12 pressure are transferred to the rated pressure value of compensated 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 to required force value, tested gear pump is rotated.
Then, increase gradually each compensated pump 3,4 simultaneously, 5,6,7 discharge capacity, and coordinate the pressure of adjusting I relief valve 8, II relief valve 9, III relief valve 10 and IV relief valve 11, until make each by pump testing 28,29,30,31 reach its rated speed, make each connection by pump testing 28,29,30, till 31 outlet pressure reaches the desired force value of test, and make the spillway discharge of I relief valve 8, II relief valve 9, III relief valve 10 and IV relief valve 11 remain on smaller value.At this moment, each is by pump testing 28,29, and the pressure oil of 30,31 outputs is entered and respectively loaded oil hydraulic motor 13,14 by each filter-press 20,21,22,23 and one-way valve successively respectively, and 15,16 entrance is implemented Power Recovery.
The rotating speed of tested multi-gear pump and input torque can detect by torque speed sensor 19, and experiment work pressure can detect by each pressure gauge, and actual output flow can pass through each flowmeter 24,25, and 26,27 detect.
During system works, by each filter-press 20,21,22,23 and 37 pairs of hydraulic oil of return filter, filtered.If in the time of need to carrying 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, through I ball valve 34, directly enter oil sump tank, or return to fuel tank through II ball valve 35 and cooler 36.
Claims (6)
1. the energy-conservation test stand of multi-gear pump, 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 a plurality of cubage compensation pump (3,4,5,6,7); It is characterized in that:
Each of described tested multi-gear pump is interconnected by the inlet port of pump testing (28,29,30,31) and communicates with fuel tank (1), after each is connected in series respectively one-way valve by the fuel-displaced pipeline of pump testing (28,29,30,31), is connected with the filler opening of the oil outlet of a compensated pump (3,4,5,6) and the loading oil hydraulic motor (13,14,15,16) in loading element again;
The output shaft of the loading oil hydraulic motor in described loading element (13,14,15,16) is connected with a power input shaft of synchronous gear box (18) respectively; The oil outlet that loads oil hydraulic motor (13,14,15,16) is interconnected and passes through a return filter (37) and is communicated with fuel tank (1);
One end of the pto＝power take-off of described synchronous gear box (18) is connected with the pump shaft of tested multi-gear pump by coupling, 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 compensated pump (7) in cubage compensation pump (3,4,5,6,7), and the oil outlet of mechanical compensation oil hydraulic motor (17) is connected with the oil outlet that loads oil hydraulic motor (13,14,15,16);
The inlet port of described cubage compensation pump (3,4,5,6,7) is interconnected and passes through oil absorption filter (2) and is communicated with fuel tank (1); Cubage compensation pump (3,4,5,6,7) oil outlet place is 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 the fuel-displaced pipeline of pump testing (28,29,30,31); Described torque speed sensor (19) is arranged between tested multi-gear pump and the pto＝power take-off of 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 a plurality of 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) by another II ball valve (35) and I cooler (36) with fuel tank (1) connected sum by an I ball valve (34) respectively.
2. the energy-conservation test stand of multi-gear pump according to claim 1, is characterized in that: described each is provided with two and the ball valve and the filter-press (20,21,22,23) that connect on fuel-displaced pipeline of pump testing (28,29,30,31).
3. the energy-conservation test stand of multi-gear pump according to claim 1 and 2, is characterized in that: described flowmeter (24,25,26,27) be serially connected in each by the fuel-displaced pipeline of pump testing (28,29,30,31) two and connect a ball valve in ball valve after.
4. the energy-conservation test stand of multi-gear pump according to claim 1, is characterized in that: the discharge capacity of the loading oil hydraulic motor in described loading element (13,14,15,16) is identical with the discharge capacity by pump testing (28,29,30,31) in its corresponding tested multi-gear pump being connected.
5. the energy-conservation test stand of multi-gear pump 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 that loads oil hydraulic motor (13,14,15,16).
6. the energy-conservation test stand of multi-gear pump according to claim 1, is characterized in that: the oil outlet of described low-pressure filter (33) is communicated with fuel tank (1) by III ball valve (38) and II cooler (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320639842.2U CN203516054U (en) | 2013-10-16 | 2013-10-16 | Multigang gear pump energy saving test bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320639842.2U CN203516054U (en) | 2013-10-16 | 2013-10-16 | Multigang gear pump energy saving test bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203516054U true CN203516054U (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320639842.2U Withdrawn - After Issue CN203516054U (en) | 2013-10-16 | 2013-10-16 | Multigang gear pump energy saving test bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203516054U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107327430A (en) * | 2017-07-27 | 2017-11-07 | 上海电气液压气动有限公司 | A kind of hydraulic pressure comprehensive test system of Power Recovery |
-
2013
- 2013-10-16 CN CN201320639842.2U patent/CN203516054U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107327430A (en) * | 2017-07-27 | 2017-11-07 | 上海电气液压气动有限公司 | A kind of hydraulic pressure comprehensive test system of Power Recovery |
| CN107327430B (en) * | 2017-07-27 | 2023-11-10 | 上海电气液压气动有限公司 | Hydraulic comprehensive test system for power recovery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140402 Effective date of abandoning: 20151028 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |