CN104454748B - Reliable comprehensive energy-saving hydraulic test device for gear pumps, overflow valves and one-way valves - Google Patents
Reliable comprehensive energy-saving hydraulic test device for gear pumps, overflow valves and one-way valves Download PDFInfo
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- CN104454748B CN104454748B CN201410734571.8A CN201410734571A CN104454748B CN 104454748 B CN104454748 B CN 104454748B CN 201410734571 A CN201410734571 A CN 201410734571A CN 104454748 B CN104454748 B CN 104454748B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a reliable comprehensive energy-saving hydraulic test device for gear pumps, overflow valves and one-way valves. The reliable comprehensive energy-saving hydraulic test device comprises measured gear pumps, measured overflow valves, measured one-way valves and a hydraulic oil pipeline; the reliable comprehensive energy-saving hydraulic test device is characterized in that the two measured gear pumps, two measured overflow valves and the two measured one-way valves are respectively arranged, and the measured gear pumps are driven by a motor to work; the pressure oil of the first gear pump and the second gear pump flow together to a P oil port of a three-position four-way electromagnetic directional valve after being collected, an A oil port of the three-position four-way electromagnetic directional valve is connected with the third one-way valve and the first overflow valve, and a B oil port is connected with the fourth one-way valve and the second overflow valve. Two gear pump samples, two one-way valve samples and two overflow valve samples are simultaneously tested by one motor and one three-position four-way electromagnetic directional valve, thereby increasing the type and number of the samples, saving energy and greatly improving the test efficiency, meanwhile, the invention further has the advantages of high simplicity in control and easiness in promotion.
Description
Technical field
The present invention relates to a kind of device that can detect gear pump, overflow valve and check valve reliability index simultaneously, especially relate to
And the synthesis energy saving test hydraulic means of a kind of gear pump, overflow valve and check valve reliability.
Background technology
, as the critical elements of hydraulic system, its reliability level directly influences whole for gear pump, overflow valve and check valve
The reliability of individual hydraulic system and safety, for guaranteeing gear pump, overflow valve and check valve in regulation use condition and use
Between under normal operation, need to carry out reliability test to it.
Examination in the machinery industry standard of the universal reference in state's internal gear pump, overflow valve and check valve reliability test loop at present
Test loop, the number of samples that this kind of scheme single test is set up is few, multisample test needs are taken a substantial amount of time, and
A kind of Hydraulic Elements can only be tested in every kind of test loop, needs to set up different tests when testing polytype Hydraulic Elements
Platform, causes the wasting of resources.
Content of the invention
The technical problem to be solved is to provide one kind can detect tooth for above-mentioned state of the art simultaneously
The synthesis energy saving test hydraulic means of wheel pump, overflow valve and the multinomial reliability index of check valve, this device can increase test sample
Type and quantity, improve test efficiency, reduce energy resource consumption advantage.
The technical scheme that present invention solution above-mentioned technical problem is adopted is: a kind of gear pump, overflow valve and check valve can
Synthesis energy saving by property tests hydraulic means, including tested gear pump, tested overflow valve and tested check valve, and hydraulic oil pipe
Road；It is characterized in that: described tested gear pump, tested overflow valve and tested check valve respectively have two, the respectively first tested tooth
Wheel pump, the second tested gear pump, the first tested overflow valve, the second tested overflow valve, the first tested check valve, second tested unidirectional
Valve；Described first tested gear pump and the second tested gear pump start building to make by motor belt motor；The oil-in of the first tested gear pump connects
Connect with fuel tank after first stop valve, pressure oil port connects first pressure sensor, first flowmeter and the first check valve successively；The
The oil-in of two tested gear pumps connects the second stop valve, and pressure oil port connects second pressure sensor, second flowmeter and successively
Two check valves；The fuel-displaced interflow of described first check valve and the second check valve is followed by the p hydraulic fluid port of three-position four-way electromagnetic directional valve, and
Connect with fuel tank after connecing relief valve at interflow；It is tested unidirectional that a hydraulic fluid port of described three-position four-way electromagnetic directional valve connects first successively
Valve, the 3rd stop valve, the 3rd pressure transducer, the first tested overflow valve and the 3rd effusion meter；Described 3-position 4-way electromagnetic switch
The b hydraulic fluid port of valve connects the second tested check valve, the 4th stop valve, the 4th pressure transducer, the second tested overflow valve and the 4th successively
Effusion meter；The outlet line of the first tested check valve and the second tested check valve is individually connected with the 5th stop valve, the 3rd flow
Fuel tank is returned to behind the fuel-displaced interflow of meter and the 4th effusion meter；The t hydraulic fluid port of described three-position four-way electromagnetic directional valve connects two hydraulic pressure
Pipeline, first article of fluid pressure line connects the 7th stop valve, and another article of fluid pressure line connects the 6th stop valve and the 5th effusion meter successively, and two
Bar fluid pressure line returns to fuel tank behind interflow.
It is provided with above-mentioned fuel tank for detecting whether fuel tank oil temperature reaches the first tested gear pump and the second tested gear
The three-temperature sensor of the temperature requirement of pump elevated temperature impact test.
The above-mentioned motor driving the first tested gear pump and the second tested gear pump work is double extension bar motors, and this pair stretches
The first axle of rod motor is extended through moment of torsion rotational speed meters and is connected with the first tested gear pump, and the second shaft extension of double extension bar motors is straight
Connect and be connected with the second tested gear pump.Using double extension bar motors can using a motor simultaneously drive the first tested gear pump and
Second tested gear pump work, reduces cost can guarantee that the consistent of the first tested gear pump and the second tested gear pump work simultaneously
Property.
The leakage hydraulic fluid port of above-mentioned first tested gear pump connects the first temperature sensor for detection temperature signal.
The leakage hydraulic fluid port of above-mentioned second tested gear pump connects the second temperature sensor for detection temperature signal.
Connect cooler successively behind the fuel-displaced interflow of above-mentioned 3rd effusion meter and the 4th effusion meter and return filter returns
Fuel tank.What so the hydraulic oil after backflow can be cleaner flows back to fuel tank.
Compared with prior art, it is an advantage of the current invention that:
1st, the elevated temperature impact test of tested gear pump, accelerated life test, tested is completed by test battery device simultaneously
The keying number of times test of check valve and overflow valve, increased the specimen types of test, improves test efficiency；
2nd, pass through 1 motor and 1 three-position four-way electromagnetic directional valve tests 2 gear pump samples, 2 check valve samples simultaneously
Originally with 2 overflow valve samples, increased test sample quantity, save test period, decrease energy resource consumption；
3rd, loaded by tested overflow valve, made the rated pressure that system test pressure is higher than gear pump, propulsion trial
Process, reduces test period further；
4th, pass through data collecting system Real-time Collection and each performance parameter of monitoring tested sample, failure condition can be done
Go out accurate judgement；
5th, this test hydraulic means also have control simple it is easy to the advantage promoted.
Brief description
Fig. 1 is the principle schematic of the embodiment of the present invention.
In figure label: 1, double extension bar motors；2nd, moment of torsion rotational speed meters；3rd, the first stop valve；4th, the first tested gear pump；5、
First temperature sensor；6th, first pressure sensor；, 7 first flowmeters；8th, the first check valve；9th, 3-position 4-way electromagnetic switch
Valve；10th, the second tested check valve；11st, the first tested check valve；12nd, the 5th stop valve；13rd, the 4th stop valve；14th, the 3rd section
Only valve；15th, the 4th pressure transducer；16th, the 3rd pressure transducer；17th, the first tested overflow valve；18th, the second tested overflow valve；
19th, the 3rd effusion meter；20th, the 4th effusion meter；21 the 5th effusion meters；22nd, cooler；23rd, return filter；24th, the 3rd temperature
Sensor；25th, the 6th stop valve；26th, the 7th stop valve；27th, relief valve；28 second pressure sensors；29th, second temperature sensing
Device；30th, the second check valve；31st, the second tested gear pump；32nd, the second stop valve；33rd, second flowmeter.
Specific embodiment
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in figure 1, being a preferred embodiment of the present invention.
A kind of gear pump, overflow valve and check valve reliability synthesis energy saving test hydraulic means, including tested gear pump,
Tested overflow valve and tested check valve, and hydraulic oil pipeline.
Tested gear pump, tested overflow valve and tested check valve respectively have two, the respectively first tested gear pump 4, second
Tested gear pump 31, the first tested overflow valve 17, the second tested overflow valve 18, the first tested check valve 11, second are tested unidirectional
Valve 10.
First tested gear pump 4 and the second tested gear pump 31 start building to make by motor belt motor, drive the first tested gear pump 4 He
The motor of the second tested gear pump 31 work is double extension bar motor 1, and the first axle of this pair of extension bar motor 1 extends through torque axis
Fast instrument 2 is connected with first gear pump 4, and the second shaft extension of double extension bar motors 1 is directly connected with second gear pump 31.
The oil-in of the first tested gear pump 4 is connected with fuel tank after connecing the first stop valve 3, the pressure of the first tested gear pump 4
Power hydraulic fluid port connects first pressure sensor 6, first flowmeter 7 and the first check valve 8 successively, first pressure sensor 6 and first-class
Gauge 7 is respectively intended to detect pressure signal and the flow signal of oil-out, and the leakage hydraulic fluid port of the first tested gear pump 4 connects for examining
First temperature sensor 5 of testing temperature signal.
The oil-in of the second tested gear pump 31 connects the second stop valve 32, and the pressure oil port of the second tested gear pump 31 is successively
Connect second pressure sensor 28, second flowmeter 33 and the second check valve 30, second pressure sensor 28 and second flowmeter 33
It is respectively intended to detect pressure signal and the flow signal of oil-out, the leakage hydraulic fluid port of the second tested gear pump 31 connects for detecting temperature
The second temperature sensor 29 of degree signal.
The fuel-displaced interflow of the first check valve 8 and the second check valve 30 is followed by the p hydraulic fluid port of three-position four-way electromagnetic directional valve 9, and
Connect with fuel tank after connecing relief valve 27 at interflow, relief valve 27 is in order to the safe pressure of regulating system.
The a hydraulic fluid port of three-position four-way electromagnetic directional valve 9 connects the first tested check valve 11, the 3rd stop valve 14, the 3rd pressure successively
Force transducer 16, the first tested overflow valve 17 and the 3rd effusion meter 19.
The b hydraulic fluid port of three-position four-way electromagnetic directional valve 9 connects the second tested check valve 10, the 4th stop valve 13, the 4th pressure successively
Force transducer 15, the second tested overflow valve 18 and the 4th effusion meter 20.
First tested check valve 11 is individually connected with the 5th stop valve 12 with the outlet line of the second tested check valve 10, the
Connect cooler 22 successively behind the fuel-displaced interflow of three effusion meters 19 and the 4th effusion meter 20 and return filter 23 returns fuel tank.Oil
It is provided with case for detecting whether fuel tank oil temperature reaches the first tested gear pump 4 and the second tested gear pump 31 high temperature impact examination
The three-temperature sensor 24 of the temperature requirement tested.
The t hydraulic fluid port of three-position four-way electromagnetic directional valve 9 connects two fluid pressure lines, and first article of fluid pressure line connects the 7th stop valve
26, another article of fluid pressure line connects the 6th stop valve 25 and the 5th effusion meter 21, the 6th stop valve 25 and the 5th effusion meter 21 successively
It is used for detecting the flow signal of the first tested check valve 11 and the second tested check valve 10 reverse leakage, two fluid pressure line interflow
After return to fuel tank.
First tested gear pump 4 and the second tested gear pump 31 pressure oil output under the driving of double extension bar motor 1；
First tested overflow valve 17 and the second tested overflow valve 18 are system loads；By control three-position four-way electromagnetic directional valve 9 make by
Survey the action frequency that Hydraulic Elements complete to specify；In process of the test by hydraulic oil pipeline install several pressure,
Temperature sensor and effusion meter, and the moment of torsion rotational speed meters 2 collection correlation test number of the input shaft installation in first gear pump 4
According to calculating the reliability characteristic data of tested gear pump sample, overflow valve sample and check valve sample according to mathematical method.
The concrete operations of this assay device comprise the steps:
Step 1, unlatching the first stop valve 3, the second stop valve 32, the 3rd stop valve 14, the 4th stop valve the 13, the 7th cut-off
Valve 26, cuts out the 5th stop valve 12 and the 6th stop valve 25, adjust the first tested overflow valve 17 and the second tested overflow valve 18 to
System pressure reaches specified testing pressure p1, and relief valve 27 Opening pressure is adjusted to slightly above p1 value.
Step 2, unlatching assay device, run through the short time and treat that the parameter indexs such as system pressure, oil liquid temperature meet examination
After testing requirement, start test data sheet.
Step 3, the impact test that starts, the sequence of movement of setting three-position four-way electromagnetic directional valve 9 makes tested sample on rule
Fix time the interior action frequency all reaching regulation.When 1dt obtains dead electricity one time, the first tested gear pump 4 and the second tested tooth
Wheel pump 31 sample completes once to load → unloaded impact process, the first tested check valve 11 and the first tested overflow valve 17 simultaneously
Complete an opening-closing process；With should 2dt obtain dead electricity one time when, the first tested gear pump 4 and the second tested gear pump 31 sample
Also complete once to load → unloaded impact process, the second tested check valve 10 and the second tested overflow valve 18 complete once simultaneously
Opening-closing process.
Torque signal and the rotating speed letter of double extension bar motors 1 in step 4, process of the test, is detected by moment of torsion rotational speed meters 2
Number；Detect pressure signal and the flow of the first tested gear pump 4 oil-out by first pressure sensor 6 and first flowmeter 7
Signal, leaks oil temperature by the first temperature sensor 5 to it and detects；By second pressure sensor 28 and second flow
The pressure signal of meter 33 detection the second tested gear pump 31 oil-out and flow signal, are let out to it by second temperature sensor 29
Oil leak temperature is detected；Detect the unlatching of the first tested overflow valve 17 by the 3rd pressure transducer 16 and the 3rd effusion meter 19
Pressure signal, detects the Opening pressure letter of the second tested overflow valve 18 by the 4th pressure transducer 15 and the 4th effusion meter 20
Number.
Step 5, whether there are abnormal pressure fluctuation, extraordinary noise and overheating by real-time data acquisition viewing system,
Once a certain sample lost efficacy, record this sample adds up number of shocks.
Step 6, after first group of sample reaches the action frequency of regulation, open the 5th stop valve 12 and the 6th stop valve
25, close the 3rd stop valve 14, the 4th stop valve 13 and the 7th stop valve 26.When 1dt obtains electric, the 5th effusion meter 21 can record
The reverse leakage flow signal of the second tested check valve 10, can record the reverse leakage of the first tested check valve 11 when 2dt obtains electric
Flow signal.
Step 7, after first group of off-test, pull down tested gear pump, tested overflow valve and tested from pilot system
Check valve, carries out part strip inspection to it, checks whether each friction pair abrasion is normal, if grind wound, burn, fatigue flake
Etc. phenomenon.
Step 8, the second group of load test that carry out, change brand-new tested sample, adjust the first tested overflow valve 17 and second
Tested overflow valve 19 reaches specified testing pressure p2 to system pressure, relief valve 27 Opening pressure is adjusted to slightly above p2 value, opens
Open the first stop valve 3, the second stop valve 32, the 3rd stop valve 14, the 4th stop valve 13, the 7th stop valve 26, close the 5th section
Only valve 12 and the 6th stop valve 25, run and after start to test.
Step 9, repeat step 3～7.
Step 10, extraction test each sensor signal data that Computer is achieved twice, are drawn by mathematical method
The reliability characteristic data of tested gear pump sample, overflow valve sample and check valve sample.
Although the preferred embodiments of the present invention described in detail above, it is to be clearly understood that for this area
Technical staff for, the present invention can have various modifications and variations.All made within the spirit and principles in the present invention appoint
What modification, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (5)
1. the synthesis energy saving test hydraulic means of a kind of gear pump, overflow valve and check valve reliability, including tested gear pump, quilt
Survey overflow valve and tested check valve, and hydraulic oil pipeline；It is characterized in that: described tested gear pump, tested overflow valve and tested
Check valve respectively has two, the respectively first tested gear pump (4), the second tested gear pump (31), the first tested overflow valve (17),
Second tested overflow valve (18), the first tested check valve (11), the second tested check valve (10)；Described first tested gear pump
(4) and the second tested gear pump (31) is started building to make by motor belt motor；The oil-in of the first tested gear pump (4) connects the first stop valve
(3) connect with fuel tank afterwards, pressure oil port connects first pressure sensor (6), first flowmeter (7) and the first check valve (8) successively；
The oil-in of the second tested gear pump (4) connects the second stop valve (32), pressure oil port connect successively second pressure sensor (28),
Two effusion meters (33) and the second check valve (30)；Described first check valve (8) is followed by with the fuel-displaced interflow of the second check valve (30)
The p hydraulic fluid port of three-position four-way electromagnetic directional valve (9), and connect relief valve (27) at interflow and connect with fuel tank afterwards；Described 3-position 4-way
The a hydraulic fluid port of solenoid directional control valve (9) connects the first tested check valve (11), the 3rd stop valve (14), the 3rd pressure transducer successively
(16), the first tested overflow valve (17) and the 3rd effusion meter (19)；The b hydraulic fluid port of described three-position four-way electromagnetic directional valve (9) is successively
Connect the second tested check valve (10), the 4th stop valve (13), the 4th pressure transducer (15), the second tested overflow valve (18) and
Four effusion meters (20)；The outlet line of the first tested check valve (11) and the second tested check valve (10) is with the 5th stop valve (12)
Individually connect, behind the fuel-displaced interflow of the 3rd effusion meter (19) and the 4th effusion meter (20), return to fuel tank；Described 3-position 4-way electromagnetism
The t hydraulic fluid port of reversal valve (9) connects two fluid pressure lines, and first article of fluid pressure line connects the 7th stop valve (26), another hydraulic tube
Road connects the 6th stop valve (25) and the 5th effusion meter (21) successively, returns to fuel tank behind two fluid pressure line interflow；
Drive the first tested gear pump (4) and described motor that the second tested gear pump (31) works be double extension bar motors (1),
The first axle of this pair of extension bar motor (1) is extended through moment of torsion rotational speed meters (2) and is connected with the first tested gear pump (4), double extension bars
Second shaft extension of motor (1) is directly connected with the second tested gear pump (31).
2. synthesis energy saving according to claim 1 test hydraulic means it is characterised in that: be provided with described fuel tank for
Whether detection fuel tank oil temperature reaches the first tested gear pump (4) and the temperature of the second tested gear pump (31) elevated temperature impact test will
The three-temperature sensor (24) asked.
3. synthesis energy saving according to claim 1 test hydraulic means it is characterised in that: described first tested gear pump
(4) leakage hydraulic fluid port connects the first temperature sensor (5) for detection temperature signal.
4. synthesis energy saving according to claim 1 test hydraulic means it is characterised in that: described second tested gear pump
(31) leakage hydraulic fluid port connects the second temperature sensor (29) for detection temperature signal.
5. synthesis energy saving according to claim 1 test hydraulic means it is characterised in that: described 3rd effusion meter (19) and
Connect cooler (22) behind the fuel-displaced interflow of the 4th effusion meter (20) successively and return filter (23) returns fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410734571.8A CN104454748B (en) | 2014-12-05 | 2014-12-05 | Reliable comprehensive energy-saving hydraulic test device for gear pumps, overflow valves and one-way valves |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410734571.8A CN104454748B (en) | 2014-12-05 | 2014-12-05 | Reliable comprehensive energy-saving hydraulic test device for gear pumps, overflow valves and one-way valves |
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| CN104454748A CN104454748A (en) | 2015-03-25 |
| CN104454748B true CN104454748B (en) | 2017-01-25 |
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| CN201410734571.8A Active CN104454748B (en) | 2014-12-05 | 2014-12-05 | Reliable comprehensive energy-saving hydraulic test device for gear pumps, overflow valves and one-way valves |
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