CN105275921B - Hydraulic air test system - Google Patents
Hydraulic air test system Download PDFInfo
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- CN105275921B CN105275921B CN201510846730.8A CN201510846730A CN105275921B CN 105275921 B CN105275921 B CN 105275921B CN 201510846730 A CN201510846730 A CN 201510846730A CN 105275921 B CN105275921 B CN 105275921B
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Abstract
The present invention provides hydraulic air test system, including interface panel unit, oil return test cell, dynamic pressure component unit, static pressure test unit and pumping plant unit；Interface panel is connected with oil return test cell, dynamic pressure component unit and static pressure test unit by pipeline, for providing hydraulic test input, output and adjusting；Pumping plant unit is connected with oil return test cell, dynamic pressure component unit and static pressure test unit by pipeline, can largely mitigate cost of labor for providing lasting fuel oil, accuracy rate is high, conveniently moving, it is adapted to various field tests to use, measurable various hydraulic pressure, including static pressure, dynamic pressure and oil return.It is easy to use, it is simple to operate.
Description
Technical field
The present invention relates to field of aviation measurement and test, and in particular to hydraulic air test system.
Background technology
PTU hydraulic transmissions and hydraulic motor are all important Hydraulic Elements in aircarrier aircraft, in the dimension of aircarrier aircraft
Very important status is occupied in repairing.The full name of PTU is power switching device, is a coaxial hydraulic pump motor component, when
When PTU control valve are opened, motor receives the pressure from hydraulic system, makes revolution；Hydraulic pump receives to come from hydraulic pressure system
The fuel feeding and forward edge wing flap and slat of system fuel tank provide standby pressure；Housing oil return simultaneously is cooled down and lubricates motor and hydraulic pressure
Pump.The kinetic energy of PTU is the work for recovering another hydraulic system using a hydraulic system, improves the reliability of hydraulic system.
Because the driving power of PTU hydraulic transmissions and hydraulic motor is big, hydraulic flow is big, in the design process often
Can not preferably imitation specimen environment of operation aboard, it is more mainly due to the pipe design branch road of existing product, joint,
It is unfavorable for that big flow passes through；And because test specimen power is larger, being activated the influence of dash current can start line voltage
When rapid drawdown, so as to influence power network and miscellaneous part；Further, since test request high precision, the tested elements of some keys are also needed
Will external buying.
Hydraulic air test system aspect used in the prior art has the following disadvantages：
Efficiency is low：Ground run detects complex procedures, and a detection for engine performance parameter generally needs repeatedly test,
The consumption such as participation tester is more, labour intensity is big, detection time is long, fuel oil are serious, efficiency is low, what same misjudgement test leakage was caused
The service life of the hydraulic air pipeline for being also lost more is operated repeatedly.
Need badly and a kind of with quick connection, high-speed data acquisition and take up an area small, conveniently moving for space shuttle liquid
Pressure test system, conscientiously raising space shuttle hydraulic test efficiency, it is ensured that the accuracy of test.
The content of the invention
It is an object of the invention to provide hydraulic air test system, said one or multiple problems are solved.
The present invention provides hydraulic air test system, including interface panel unit, oil return test cell, dynamic pressure part list
Unit, static pressure test unit and pumping plant unit；Interface panel unit is surveyed with oil return test cell, dynamic pressure component unit and static pressure
Examination unit is connected by pipeline, for providing hydraulic test input, output and adjusting；Pumping plant unit and oil return test cell,
Dynamic pressure component unit and static pressure test unit are connected by pipeline, and for providing lasting fuel oil, interface panel unit includes,
Panel interface, principal pressure interface, main oil return interface and pressure regulator valve；Panel interface includes that first panel interface, second panel connect
Mouth, the 3rd panel interface, fourth face plate interface, the 5th panel interface, the 6th panel interface and the 7th panel interface, pressure regulator valve
Including the first pressure regulator valve, the second pressure regulator valve and the 3rd pressure regulator valve；First panel interface is connected with static pressure test unit, principal pressure
Interface, second panel interface, the 3rd panel interface, fourth face plate interface, the 5th panel interface are connected with dynamic pressure component unit, the
Six panel interfaces, the 7th panel interface and main oil return interface are connected with oil return test cell；First pressure regulator valve, the second pressure regulator valve
And the 3rd pressure regulator valve be connected with dynamic pressure component unit.
In some embodiments, oil return test cell includes, cooler, the first check valve, the first turbine flowmeter,
One pressure sensor, the first temperature sensor, the first stop valve, the second stop valve, the entrance of cooler is connected with pumping plant unit,
The outlet of cooler is connected with the outlet of check valve, and the entrance of the first check valve is connected with first turbine flowmeter one end, and first
The turbine flowmeter other end is connected with main oil return interface, first stop valve one end and second stop valve one end, and first pressure is passed
Sensor and the first temperature sensor are connected on the pipeline between main oil return interface and the first turbine flowmeter, the first cut-off
The valve other end is connected with the 6th panel interface, and the second stop valve other end is connected with the 7th panel interface.
In some embodiments, static pressure test unit includes gas drive pump, first pressure filter, the second check valve, the
Two pressure sensors, pneumatic ball valve, the first air gauge, pneumatic pressure-release valve, source of the gas and the 3rd stop valve；First panel interface point
It is not connected with the outlet of the second check valve and the 3rd stop valve one end, the 3rd stop valve other end is connected with dynamic pressure component unit,
The entrance of the second check valve is connected with the outlet of first pressure filter, entrance and gas drive pump one end phase of first pressure filter
Even, the gas drive pump other end is connected with pneumatic ball valve one end, and the pneumatic ball valve other end is connected with pneumatic pressure-release valve one end, Pneumatic decompression
The valve other end is connected with source of the gas, is additionally provided with the first air gauge on the pipeline between pneumatic ball valve and pneumatic pressure-release valve, gas drive pump with
Pumping plant unit is connected.
In some embodiments, dynamic pressure component unit includes the 3rd check valve, the 4th stop valve, second pressure filtering
Device, flow speed control valve, accumulator, the second turbine flowmeter, the 3rd pressure sensor, the first pressure-reducing valve, the second pressure-reducing valve, the 4th pressure
Sensor, the 5th pressure sensor, the 5th stop valve, the 6th stop valve, the first precursor overflow valve, the second precursor overflow valve and
Reversal valve；The import of the 3rd check valve is connected with pumping plant unit, the outlet of the 3rd check valve respectively with second pressure filter and
The connection of 4th stop valve, second pressure filter are connected with flow speed control valve, and flow speed control valve is connected with second turbine flowmeter one end, and second
The turbine flowmeter other end is connected with principal pressure interface, is connected with the pipeline between principal pressure interface and the second turbine flowmeter
3rd pressure sensor, the 4th stop valve other end is connected with accumulator；Second turbine flowmeter is parallel with the 5th stop valve,
One pressure-reducing valve and the second pressure-reducing valve, the 5th stop valve other end are connected with second panel interface, the first pressure-reducing valve other end according to
Secondary connection the 6th stop valve and the 3rd panel interface, the second pressure-reducing valve are connected with reversal valve, and reversal valve connects with fourth face plate respectively
Mouth, the connection of the 5th panel interface, the pipeline between the second pressure-reducing valve and reversal valve are provided with the 5th pressure sensor；3rd is unidirectional
Valve connects first the second precursor overflow valve of precursor overflow valve respectively, and the first precursor overflow valve and the second precursor overflow valve are surveyed with static pressure
Examination unit connection, the first precursor overflow valve is connected with the 3rd pressure regulator valve, and the first pressure-reducing valve is connected with the first pressure regulator valve, the second decompression
Valve is connected with the second pressure regulator valve.
In some embodiments, pumping plant unit includes oil circuit storage pool, the filter of oil suction oil, the filter of oil return oil, ball valve, the second temperature
Degree optical flame detector, liquid level liquid thermometer, air filter, pump motor and variable pump, ball valve one end are connected with hydraulic air pipeline, separately
One end is connected with oil circuit storage pool, and oil circuit storage pool is connected with the filter of oil suction oil, the filter of oil return oil, second temperature optical flame detector, liquid level
Temperature meter and air filter, oil suction oil filter are connected with static pressure test unit, pump motor respectively, and pump motor is connected with variable pump, becomes
The amount pump other end is connected with dynamic pressure component unit, and oil return oil filter is connected with oil return test cell.
The present invention changes mode in the past by manual detection engine performance, solves to rely on people present in prior art
The cycle is more long, labour intensity is larger, relatively costly needed for work test hydraulic pressure, and manual testing cannot substantially ensure that test run quality,
Flexibility, reliability, expandability and economy are poor, it is impossible to meet the problem of technology growth requirement, and test event
It is single, it is impossible to meet various testing requirements.
Brief description of the drawings
Fig. 1 is the structural representation of the hydraulic air test system of one embodiment of the present invention.
Fig. 2 is the interface panel cellular construction schematic diagram of the hydraulic air test system of one embodiment of the present invention.
Fig. 3 is the oil return test cell structural representation of the hydraulic air test system of one embodiment of the present invention.
Fig. 4 is the static pressure test cellular construction schematic diagram of the hydraulic air test system of one embodiment of the present invention.
Fig. 5 is the dynamic pressure component unit structural representation of the hydraulic air test system of one embodiment of the present invention.
Fig. 6 is the pumping plant cellular construction schematic diagram of the hydraulic air test system of one embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in further detail explanation.
The present invention provide hydraulic air test system, as shown in figure 1, including interface panel unit 1, oil return test cell 2,
Dynamic pressure component unit 3, static pressure test unit 4 and pumping plant unit 5；Interface panel and oil return test cell 2, dynamic pressure component unit
3 and static pressure test unit 4 by pipeline connect, for provide hydraulic test input, output and adjust；Pumping plant unit 5 with
Oil return test cell 2, dynamic pressure component unit 3 and static pressure test unit 4 are connected by pipeline, for providing lasting fuel oil.
As shown in Fig. 2 interface panel unit 1 includes, panel interface, principal pressure interface 101, main oil return interface 102 and
Pressure regulator valve；Panel interface includes first panel interface 10, second panel interface 11, the 3rd panel interface 12, fourth face plate interface
13rd, the 5th panel interface 14, the 6th panel interface 15 and the 7th panel interface 16, pressure regulator valve include the first pressure regulator valve 17, the
Two pressure regulator valves 18 and the 3rd pressure regulator valve 19；First panel interface 10 is connected with static pressure test system, principal pressure interface 101,
Two panel interfaces 11, the 3rd panel interface 12, fourth face plate interface 13, the 5th panel interface 14 are connected with dynamic pressure component unit 3,
6th panel interface 15, the 7th panel interface 16 and main oil return interface 102 are connected with oil return test cell 2；First pressure regulator valve
17th, the second pressure regulator valve 18 and the 3rd pressure regulator valve 19 are connected with dynamic pressure component unit 3.Principal pressure interface 101 is tightly locked using screw thread
Formula snap joint.
As shown in figure 3, oil return test cell 2 includes, cooler 21, the first check valve 22, the first turbine flowmeter 23,
One pressure sensor 24, the first temperature sensor 25, the first stop valve 26, the second stop valve 27, the entrance and pump of cooler 21
Unit 5 of standing is connected, the outlet of cooler 21 is connected with the outlet of check valve, the entrance and the first turbine flow of the first check valve 22
Count 23 one end to be connected, the other end of the first turbine flowmeter 23 and main oil return interface 102, the one end of the first stop valve 26 and second section
The only one end of valve 27 connection, the temperature sensor 25 of first pressure sensor 24 and first is connected to main oil return interface 102 and the
On pipeline between one turbine flowmeter 23, the other end of the first stop valve 26 is connected with the 6th panel interface 15, the second stop valve
27 other ends are connected with the 7th panel interface 16.The scope of first temperature sensor 25 is 0-400 ° 1.0 grades, and first pressure is passed
The scope of sensor 24 is 0.5 grade of 0-5MPa, and the first turbine flowmeter 23 uses DN320-120L/min, model HLLWGY-
P1AJC1NE-32Y, using the said equipment, can largely improve the precision and accuracy of oil return test, complete back well
Oil test.
As shown in figure 4, static pressure test unit 4 includes gas drive pump 40, first pressure filter 41, the second check valve 42, the
Two pressure sensors 43, pneumatic ball valve 44, the first air gauge 45, pneumatic pressure-release valve 46, the stop valve 48 of source of the gas 47 and the 3rd；The
One panel interface 10 is connected with the outlet of the second check valve 42 and the one end of the 3rd stop valve 48 respectively, the other end of the 3rd stop valve 48
It is connected with dynamic pressure component unit 3, the entrance of the second check valve 42 is connected with the outlet of first pressure filter 41, first pressure mistake
The entrance of filter 41 is connected with the one end of gas drive pump 40, and the other end of gas drive pump 40 is connected with the one end of pneumatic ball valve 44, pneumatic ball valve 44
The other end is connected with the one end of pneumatic pressure-release valve 46, and the other end of pneumatic pressure-release valve 46 is connected with source of the gas 47, pneumatic ball valve 44 and pneumatic
The first air gauge 45 is additionally provided with pipeline between pressure-reducing valve 46, gas drive pump 40 is connected with pumping plant unit 5.Second pressure sensor
43 scopes are 0.5 grade of 0-5MPa, and the scope of the first air gauge 45 is 1.6 grades of 0-1.6MPa, using the said equipment, can very big journey
The precision and accuracy of static pressure test are improved on degree, static pressure test is completed well.
As shown in figure 5, dynamic pressure component unit 3 includes the 3rd check valve 30, the 4th stop valve 31, second pressure filter
32nd, flow speed control valve 33, accumulator 34, the second turbine flowmeter 35, the 3rd pressure sensor 36, the first pressure-reducing valve 37, second depressurize
Valve 38, the 4th pressure sensor 39, the 5th pressure sensor 60, the 5th stop valve 61, the 6th stop valve 62, first guide's overflow
Valve 63, the second precursor overflow valve 64 and reversal valve 65；The import of the 3rd check valve 30 is connected with pumping plant unit 5, the 3rd unidirectional
The outlet of valve 30 is connected with the stop valve 31 of second pressure filter 32 and the 4th respectively, second pressure filter 32 and flow speed control valve 33
Connection, flow speed control valve 33 is connected with the one end of the second turbine flowmeter 35, the other end of the second turbine flowmeter 35 and principal pressure interface 101
Connection, is connected with the 3rd pressure sensor 36, the 4th section on the pipeline between the turbine flowmeter 35 of principal pressure interface 101 and second
Only the other end of valve 31 is connected with accumulator 34；Second turbine flowmeter 35 be parallel with the 5th stop valve 61, the first pressure-reducing valve 37 with
And second pressure-reducing valve 38, the other end of the 5th stop valve 61 is connected with second panel interface 11, and the other end of the first pressure-reducing valve 37 is successively
The 6th stop valve 62 and the 3rd panel interface 12 are connected, the second pressure-reducing valve 38 is connected with reversal valve 65, reversal valve 65 and fourth face
The panel interface 14 of plate interface 13 and the 5th is connected, and the pipeline between the second pressure-reducing valve 38 and reversal valve 65 is provided with the 5th pressure biography
Sensor 60；3rd check valve 30 connects the precursor overflow valve 64 of the first precursor overflow valve 63 second, the first precursor overflow valve 63 respectively
It is connected with static pressure test unit 4 with the second precursor overflow valve 64, the first precursor overflow valve 63 is connected with the 3rd pressure regulator valve 19, first
Pressure-reducing valve 37 is connected with the first pressure regulator valve 17, and the second pressure-reducing valve 38 is connected with the second pressure regulator valve 18.First pressure-reducing valve 37, second subtract
Pressure valve 38 uses DN2031.5MPa, model DR20G4-L5X/31.5Y/2V, using the said equipment, can largely carry
The precision and accuracy of high dynamic pressure test, complete dynamic pressure test well.
As shown in fig. 6, pumping plant unit 5 includes oil filter 52, the oil return oil filter 53, ball valve 54, second of oil circuit storage pool 51, oil suction
Temperature optical flame detector 55, liquid level liquid thermometer 56, air filter 57, pump motor 58 and variable pump 59, the one end of ball valve 54 and aviation
Fluid pressure line is connected, and the other end is connected with oil circuit storage pool 51, oil circuit storage pool be connected with oil suction oil filter 52, oil return it is oily filter 53,
Second temperature optical flame detector 55, liquid level liquid thermometer 56 and air filter 57, oil suction oil filter 52 and static pressure test unit 4 and pump motor
58 are connected, and pump motor 58 is connected with variable pump 59, and the other end of variable pump 59 is connected with dynamic pressure component unit 3, oil return is oily filter 53 and
Oil return test cell 2 is connected.Variable pressure pump uses 28Mpa 71L/r, model OS10VS071DFR/31R-CPA12N00, pump electricity
Machine 58 uses 37KW 1470rpm, model Y2YB225S-4P 37Kw.
The present invention changes mode in the past by manual detection engine performance, solves to rely on people present in prior art
The cycle is more long, labour intensity is larger, relatively costly needed for work test hydraulic pressure, and manual testing cannot substantially ensure that test run quality,
Flexibility, reliability, expandability and economy are poor, it is impossible to meet the problem of technology growth requirement, and test event
It is single, it is impossible to meet various testing requirements.Using the present invention, can largely mitigate cost of labor, accuracy rate is high, it is mobile
It is convenient, it is adapted to various field tests and uses, measurable various hydraulic pressure, including static pressure, dynamic pressure and oil return.It is easy to use, operation letter
It is single.
The above is only preferred embodiment of the invention, it is noted that to those skilled in the art, not
On the premise of departing from the invention design, some similar deformations and improvement can also be made, these also should be regarded as the present invention
Protection domain within.
Claims (5)
1. hydraulic air test system, it is characterised in that including interface panel unit (1), oil return test cell (2), dynamic pressure portion
Part unit (3), static pressure test unit (4) and pumping plant unit (5)；The interface panel unit (1) tests single with the oil return
First (2), the dynamic pressure component unit (3) and the static pressure test unit (4) are connected by pipeline, for providing hydraulic test
Input, output and regulation；The pumping plant unit (5) and the oil return test cell (2), the dynamic pressure component unit (3) with
And the static pressure test unit (4) is connected by pipeline, for providing lasting fuel oil, the interface panel unit (1) includes,
Panel interface, principal pressure interface (101), main oil return interface (102) and pressure regulator valve；The panel interface includes first panel
Interface (10), second panel interface (11), the 3rd panel interface (12), fourth face plate interface (13), the 5th panel interface (14),
6th panel interface (15) and the 7th panel interface (16), the pressure regulator valve include the first pressure regulator valve (17), the second pressure regulator valve
And the 3rd pressure regulator valve (19) (18)；The first panel interface (10) is connected with the static pressure test unit (4), the main pressure
Power interface (101), the second panel interface (11), the 3rd panel interface (12), the fourth face plate interface (13), institute
State the 5th panel interface (14) to be connected with the dynamic pressure component unit (3), the 6th panel interface (15), the 7th panel interface
And main oil return interface (102) is connected with the oil return test cell (2) (16)；First pressure regulator valve (17), the second pressure regulation
Valve (18) and the 3rd pressure regulator valve (19) are connected with the dynamic pressure component unit (3).
2. hydraulic air test system according to claim 1, it is characterised in that the oil return test cell (2) includes,
Cooler (21), the first check valve (22), the first turbine flowmeter (23), first pressure sensor (24), the first TEMP
Device (25), the first stop valve (26), the second stop valve (27), the entrance of the cooler (21) and pumping plant unit (5) phase
Even, the outlet of the cooler (21) is connected with the outlet of first check valve (22), and the first check valve (22) enter
Mouth is connected with described first turbine flowmeter (23) one end, and the first turbine flowmeter (23) other end connects with the main oil return
The connection of mouth (102), described first stop valve (26) one end and second stop valve (27) one end, the first pressure sensing
Device (24) and first temperature sensor (25) are connected to the main oil return interface (102) and first turbine flow
On pipeline between meter (23), the first stop valve (26) other end is connected with the 6th panel interface (15), and described the
Two stop valves (27) other end is connected with the 7th panel interface (16).
3. hydraulic air test system according to claim 2, it is characterised in that the static pressure test unit (4) includes
Gas drive pump (40), first pressure filter (41), the second check valve (42), second pressure sensor (43), pneumatic ball valve (44),
First air gauge (45), pneumatic pressure-release valve (46), source of the gas (47) and the 3rd stop valve (48)；The first panel interface (10)
It is connected with the outlet of second check valve (42) and the 3rd stop valve (48) one end respectively, the 3rd stop valve (48) is another
End is connected with the dynamic pressure component unit (3), the entrance of second check valve (42) and the first pressure filter (41)
Outlet be connected, the entrance of the first pressure filter (41) is connected with gas drive pump (40) one end, the gas drive pump (40) separately
One end is connected with the pneumatic ball valve (44) one end, pneumatic ball valve (44) other end and pneumatic pressure-release valve (46) one end phase
Even, pneumatic pressure-release valve (46) other end is connected with the source of the gas (47), the pneumatic ball valve (44) and the Pneumatic decompression
The first air gauge (45) is additionally provided with pipeline between valve (46), the gas drive pump (40) is connected with the pumping plant unit (5).
4. hydraulic air test system according to claim 2, it is characterised in that the dynamic pressure component unit (3) includes
3rd check valve (30), the 4th stop valve (31), second pressure filter (32), flow speed control valve (33), accumulator (34), the second whirlpool
Flowmeters (35), the 3rd pressure sensor (36), the first pressure-reducing valve (37), the second pressure-reducing valve (38), the 4th pressure sensor
(39), the 5th pressure sensor (60), the 5th stop valve (61), the 6th stop valve (62), the first precursor overflow valve (63), second
Precursor overflow valve (64) and reversal valve (65)；The import of the 3rd check valve (30) is connected with the pumping plant unit (5), institute
The outlet for stating the 3rd check valve (30) is connected with the second pressure filter (32) and the 4th stop valve (31) respectively, institute
State second pressure filter (32) to be connected with the flow speed control valve (33), the flow speed control valve (33) and the second turbine flowmeter (35)
End connection, the second turbine flowmeter (35) other end is connected with the principal pressure interface (101), the principal pressure interface
(101) the 3rd pressure sensor (36), described are connected with the pipeline between second turbine flowmeter (35)
Four stop valves (31) other end is connected with the accumulator (34)；Second turbine flowmeter (35) is parallel with the 5th stop valve
(61), the first pressure-reducing valve (37) and the second pressure-reducing valve (38), the 5th stop valve (61) other end and the second panel
Interface (11) is connected, and the first pressure-reducing valve (37) other end is sequentially connected the 6th stop valve (62) and the 3rd panel
Interface (12), second pressure-reducing valve (38) is connected with the reversal valve (65), and the reversal valve (65) is respectively with the described 4th
Panel interface (13), the 5th panel interface (14) connection, between second pressure-reducing valve (38) and the reversal valve (65)
Pipeline be provided with the 5th pressure sensor (60)；3rd check valve (30) connects first guide and overflows respectively
Stream valve (63) described second precursor overflow valve (64), first precursor overflow valve (63) and second precursor overflow valve (64)
It is connected with the static pressure test unit (4), first precursor overflow valve (63) is connected with the 3rd pressure regulator valve (19), described
First pressure-reducing valve (37) is connected with first pressure regulator valve (17), and the second pressure-reducing valve (38) is with second pressure regulator valve (18) even
Connect.
5. hydraulic air test system according to claim 2, it is characterised in that the pumping plant unit (5) is including oil circuit
Storage pool (51), oil suction oil filter (52), oil return oil filter (53), ball valve (54), second temperature optical flame detector (55), liquid level liquid thermometer
(56), air filter (57), pump motor (58) and variable pump (59), described ball valve (54) one end and hydraulic air pipeline phase
Even, the other end is connected with the oil circuit storage pool (51), the oil circuit storage pool be connected with the oil suction oil filter (52), described time
Oily filter (53), the second temperature optical flame detector (55), the liquid level liquid thermometer (56) and air filter (57), the oil suction
Oil filter (52) is connected with the static pressure test unit (4), the variable pump (59) respectively, the pump motor (58) and the variable
Pump (59) is connected, and variable pump (59) other end is connected with the dynamic pressure component unit (3), the filter of oil return oil (53) and the institute
Oil return test cell (2) is stated to be connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510846730.8A CN105275921B (en) | 2015-11-28 | 2015-11-28 | Hydraulic air test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510846730.8A CN105275921B (en) | 2015-11-28 | 2015-11-28 | Hydraulic air test system |
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| CN105275921A CN105275921A (en) | 2016-01-27 |
| CN105275921B true CN105275921B (en) | 2017-05-31 |
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| CN106586030B (en) * | 2017-02-20 | 2023-10-24 | 中国人民解放军海军航空工程学院青岛校区 | Equivalent coordination valve test bench |
| CN107489666A (en) * | 2017-08-23 | 2017-12-19 | 中国科学院海洋研究所 | ROV small-sized hydraulic testboards |
| CN111071476B (en) * | 2019-12-25 | 2021-08-27 | 国营芜湖机械厂 | Method for checking tightness and working performance of hydraulic system in assembly stage |
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| CN103511397B (en) * | 2013-09-03 | 2016-06-15 | 燕山大学 | A kind of axial plunger pump and motor reliability test method |
| US9803665B2 (en) * | 2014-03-18 | 2017-10-31 | Caterpillar Inc. | Machine control system having hydraulic warmup procedure |
| DE102014006357B3 (en) * | 2014-04-30 | 2015-06-25 | Festo Ag & Co. Kg | Compressed air system with safety function and method for operating such a compressed air system |
| CN104074839B (en) * | 2014-06-30 | 2016-06-22 | 南京创贝高速传动机械有限公司 | A kind of hydraulic motor test stand |
| CN204301769U (en) * | 2014-12-23 | 2015-04-29 | 曾万军 | A kind of aviation blue oil static pressure test platform |
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