CN209892532U

CN209892532U - Hydraulic cleaning integrated test bed

Info

Publication number: CN209892532U
Application number: CN201920521418.5U
Authority: CN
Inventors: 刘立强
Original assignee: Liaoning Fengyuan Mechanical And Electrical Equipment Engineering Co Ltd
Current assignee: Fengyuan (Liaoning) high end equipment manufacturing industry Co.,Ltd.
Priority date: 2019-04-17
Filing date: 2019-04-17
Publication date: 2020-01-03
Anticipated expiration: 2029-04-17

Abstract

The utility model discloses a hydraulic cleaning integration test bench, oil tank respectively through the pipeline with return oil pipe and advance oil union coupling, the oil tank is equipped with return oil filter, temperature sensor two, forced air cooling radiator, pressure sensor one, electromagnetic directional valve one with the connecting line of returning oil pipe in proper order on the oil tank, the oil tank includes two branches with advancing the pipeline between the oil pipe, merges and is equipped with pressure sensor three, electromagnetic directional valve two in proper order on the pipeline, and I chamber connecting line passes through electromagnetic directional valve two and two electromagnetic directional valve one and II chamber connecting line commutate. When the system works, the pressure sensors I, II and III monitor the oil pressure of different hydraulic systems, so that the safety of the hydraulic systems is protected, and the personal safety of operators is protected; the system is provided with filters with different specifications, and a net type filter element is adopted, so that the oil liquid is prevented from being polluted by other filter elements, and the filter is provided with a pollution alarm indicator, so that the blockage alarm can be realized.

Description

Hydraulic cleaning integrated test bed

Technical Field

The utility model relates to a hydraulic pressure washs integration test bench specifically is used for aircraft hydraulic system.

Background

The hydraulic system is a life support system of the airplane and is directly related to the flight safety of the airplane and pilots. After the hydraulic system pipeline is installed, the pipeline needs to be cleaned before a finished product is installed, so that the pipeline reaches certain cleanliness, and the pollution to a hydraulic system of the whole airplane is avoided. The hydraulic system of the conventional test equipment has low test efficiency and cannot meet the test requirement.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above technical defect, provide a hydraulic pressure washs integration test bench.

In order to solve the technical problem, the utility model provides a technical scheme does: a hydraulic cleaning integrated test bed comprises a liquid level sensor, a first temperature sensor, an air filter, an oil return filter, a second temperature sensor, an air cooling radiator, a sampling valve, a detection port, a first pressure sensor, a proportional overflow valve, a first electromagnetic reversing valve, a first high-pressure ball valve, a flow regulating valve, a liquid level meter, an oil discharge ball valve, an oil tank, a first oil absorption ball valve, a hand pump, a first check valve, a first high-pressure filter, a second pressure sensor, a second check valve, a third pressure sensor, a second electromagnetic reversing valve, a second high-pressure ball valve, a second high-pressure filter, a third check valve, a leather bag energy accumulator, a variable pump, a second oil absorption ball valve, a second oil absorption filter, a cavity I connecting pipeline and;

the oil tank is respectively connected with an oil return pipe and an oil inlet pipe through pipelines, an oil return filter, a temperature sensor II, an air-cooled radiator, a sampling valve, a detection port, a pressure sensor I and a solenoid directional valve I are sequentially arranged on a connecting pipeline of the oil tank and the oil return pipe, the oil return pipe is connected with a cavity II connecting pipeline, and the high-pressure ball valve I and the flow regulating valve are arranged on the cavity II connecting pipeline;

the pipeline between the oil tank and the oil inlet pipe comprises two branches, wherein a first oil absorption ball valve, a hand pump, a first check valve and a first high-pressure filter are sequentially arranged on the pipeline of one branch, a second oil absorption ball valve, a variable pump, a leather bag energy accumulator, a third check valve, a third high-pressure filter, a second pressure sensor and a second check valve are sequentially arranged on the pipeline of the other branch, the pipelines of the two branches are combined, a third pressure sensor and a second electromagnetic reversing valve are sequentially arranged on the combined pipeline, the oil inlet pipe is connected with a pipeline for connecting the cavity I, and the second high-pressure ball valve is arranged on the pipeline for connecting the cavity I;

the cavity I connecting pipeline is reversed with the cavity II connecting pipeline through the electromagnetic directional valve II and the two electromagnetic directional valves I;

two ends of the proportional overflow valve are respectively connected to two pipelines between the oil tank and the oil return pipe and between the oil inlet pipe and the oil return pipe, the connecting positions of the proportional overflow valve are respectively close to the first pressure sensor and the second pressure sensor, and the liquid level sensor, the first temperature sensor, the air filter, the liquid level meter and the oil drain ball valve are all installed on the oil tank.

The oil absorption filter is arranged in the oil tank and corresponds to the second oil absorption ball valve.

Compared with the prior art, the utility model the advantage lie in: when the system works, the pressure sensors I, II and III carry out oil pressure monitoring on different hydraulic systems, whether the output of the monitoring system meets the set requirement or not and whether the return oil pressure is overhigh or not are monitored, the safety of the hydraulic systems is protected, and the personal safety of operators is protected; the system is provided with high-pressure filters and high-pressure pipeline filters of different specifications, the filters adopt net type filter elements, the oil liquid is prevented from being polluted by other filter elements, the filtering precision meets the use requirement of the system, and the filters are provided with pollution alarm indicators, so that the blockage alarm can be realized, and a client is reminded to replace or clean the filter elements; the liquid level sensor monitors oil in the oil tank, and the alarm can be given when the oil level exceeds or is lower than a preset value.

Drawings

Fig. 1 is a hydraulic circuit diagram of the hydraulic cleaning integrated test bed of the utility model.

As shown in the figure: 1. the device comprises a liquid level sensor, 2, a temperature sensor I, 3, an air filter, 4, an oil return filter, 5, a temperature sensor II, 6, an air cooling radiator, 7, a sampling valve, 8, a detection port, 9, a pressure sensor I, 10, a proportional overflow valve, 11, an electromagnetic directional valve I, 12, a high-pressure ball valve I, 13, a flow regulating valve, 14, a liquid level meter, 15, an oil discharge ball valve, 16, an oil tank, 17, an oil absorption ball valve I, 18, a hand pump, 19, a one-way valve I, 20, a high-pressure filter I, 21, a pressure sensor II, 22, a one-way valve II, 23, a pressure sensor III, 24, an electromagnetic directional valve II, 25, a high-pressure ball valve II, 26, a high-pressure filter II, 27, a high-pressure filter III, 28, a one-way valve III, 29, a leather bag energy accumulator, 30, a variable pump, 31, an oil absorption ball valve II, 32, An oil inlet pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

With reference to the attached drawings, the hydraulic cleaning integrated test bed comprises a liquid level sensor 1, a first temperature sensor 2, an air filter 3, an oil return filter 4, a second temperature sensor 5, an air cooling radiator 6, a sampling valve 7, a detection port 8, a first pressure sensor 9, a proportional overflow valve 10, a first electromagnetic reversing valve 11, a first high-pressure ball valve 12, a flow regulating valve 13, a liquid level meter 14, an oil drain ball valve 15, an oil tank 16, a first oil suction ball valve 17, a hand pump 18, a first check valve 19, a first high-pressure filter 20, a second pressure sensor 21, a second check valve 22, a third pressure sensor 23, a second electromagnetic reversing valve 24, a second high-pressure ball valve 25, a second high-pressure filter 26, a third high-pressure filter 27, a third check valve 28, a leather bag energy accumulator 29, a variable pump 30, a second oil suction ball valve 31, a second oil suction filter 32, a cavity; the oil tank 16 is respectively connected with an oil return pipe 33 and an oil inlet pipe 34 through pipelines, an oil return filter 4, a temperature sensor II 5, an air-cooled radiator 6, a sampling valve 7, a detection port 8, a pressure sensor I9 and a first electromagnetic directional valve 11 are sequentially arranged on a connecting pipeline of the oil tank 16 and the oil return pipe 33, the oil return pipe 33 is connected with a cavity II connecting pipeline, and the high-pressure ball valve I12 and the flow regulating valve 13 are arranged on the cavity II connecting pipeline; the pipeline between the oil tank 16 and the oil inlet pipe 34 comprises two branches, wherein a first oil suction ball valve 17, a hand pump 18, a first check valve 19 and a first high-pressure filter 20 are sequentially arranged on the pipeline of one branch, a second oil suction ball valve 31, a variable pump 30, a leather bag energy accumulator 29, a third check valve 28, a third high-pressure filter 27, a second high-pressure filter 26, a second pressure sensor 21 and a second check valve 22 are sequentially arranged on the pipeline of the other branch, the pipelines of the two branches are combined, a third pressure sensor 23 and a second electromagnetic reversing valve 24 are sequentially arranged on the combined pipeline, the oil inlet pipe 34 is connected with a connecting pipeline of an I cavity, and the second high-pressure ball valve 25 is arranged on the connecting pipeline of the I cavity; the cavity I connecting pipeline is reversed with the cavity II connecting pipeline through the electromagnetic directional valve II 24 and the two electromagnetic directional valves I11; two ends of the proportional overflow valve 10 are respectively connected to two pipelines between the oil tank 16 and the oil return pipe 33 and the oil inlet pipe 34, the connection positions of the proportional overflow valve are respectively close to the first pressure sensor 9 and the second pressure sensor 21, and the liquid level sensor 1, the first temperature sensor 2, the air filter 3, the liquid level meter 14 and the oil drain ball valve 15 are all installed on the oil tank 16; the oil suction filter 32 is installed inside the oil tank 16 at a position corresponding to the second oil suction ball valve 31.

The utility model discloses when concrete implementation, through the pipeline with the test bench and aircraft hydraulic system tube coupling, give 5 Mpa's system pressure, the flow of fluid is 80L/min for entire system carries out the extrinsic cycle, clean aircraft hydraulic system. And the other working condition is that the retraction and the extension of a strut and a nose landing gear of the airplane are controlled by power, and under the working condition, the system is required to output 28Mpa pressure to support the system hydraulically and supply power. The strut and the landing gear of the airplane work normally through the electric control operation of a reversing valve in a hydraulic system. When fine adjustment is required, manual feeding by a manual pump is employed. Slowly pressurizing, and the highest pressure of the manual pump reaches 35Mpa working pressure.

Loading principle: the second oil suction ball valve 31 (manual oil suction ball valve) in the figure 1 is opened, the variable pump 30 (variable plunger pump set) is operated through system control, at the moment, oil is subjected to system pressure supply through the pressure stabilization of the leather bag energy accumulator 29 and the second high-pressure filter 26, the third high-pressure filter 27 and the third one-way valve 28, the system output pressure is adjusted through the proportional overflow valve 10, the second electromagnetic directional valve 24 and the first electromagnetic directional valve 11 are logically combined to carry out hydraulic output on different pipelines, and different working conditions, namely cabin door opening and closing and pillar retraction and release are completed. When the system works, the pressure sensor I9, the pressure sensor II 21 and the pressure sensor III 23 monitor the oil pressure of different hydraulic systems, whether the output of the monitoring system meets the set requirement or not and whether the return oil pressure is too high or not is monitored, the safety of the hydraulic systems is protected, and the personal safety of operators is protected.

The principle of manual loading: opening the oil absorption ball valve I17, and adjusting an overflow valve in the hand-operated pump 18 to enable the output pressure of the hand-operated oil pump to be the pressure which the user wants to output, wherein the overflow valve and the hand-operated pump 18 are integrated into a whole, so that the operation is convenient and space-saving; the output hydraulic oil is input into the system through a one-way valve 19 and a high-pressure filter 20, and the hand pump 18 after being set once does not need to be adjusted all the time, and can be set once.

Oil cleanliness monitoring principle: two oil monitoring modes are reserved in the system:

in the first mode, a sampling valve 7 is reserved in an oil return path in the system, and the cleanliness of hydraulic oil can be monitored in an original oil-liquid different-place monitoring mode;

and a second mode: unified hydraulic oil detects mouth 8 (on-line monitoring interface), is unified interface according to surveying current fluid cleanliness monitoring, so reserve an on-line monitoring interface can, M16X1.5 promptly can, can use the removal, appraise effectual monitoring mechanism and carry out fluid monitoring.

System oiling: when a medium is filled into the oil tank 16 through the oil filling valve, the liquid level height in the oil tank 16 is visually measured through the liquid level meter 14, meanwhile, corresponding alarm oil filling is carried out to the rear of the specified position through the preset value of the liquid level sensor 1, and the liquid level sensor 1 monitors oil in the oil tank 16 and alarms when exceeding or falling below the preset value.

And (3) cooling the system: when the second temperature sensor 5 reaches the designated temperature, a corresponding signal is sent, the air-cooled radiator 6 is opened at the moment, the heat in the oil is taken away, the relative constancy of the temperature of the test medium is ensured, the setting of the working oil temperature of the system is met, and the first temperature sensor 2 and the second temperature sensor 5 are used for mutual calibration.

A filter device: the system is provided with high-pressure filters and high-pressure pipeline filters of different specifications, the filters adopt net type filter elements, the oil liquid is prevented from being polluted by other filter elements, the filtering precision meets the use requirement of the system, and the filters are provided with pollution alarm indicators, so that the blockage alarm can be realized, and a user is reminded to replace or clean the filter elements.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a hydraulic pressure washs integration test bench which characterized in that: the device comprises a liquid level sensor, a temperature sensor I, an air filter, an oil return filter, a temperature sensor II, an air cooling radiator, a sampling valve, a detection port, a pressure sensor I, a proportional overflow valve, a first electromagnetic reversing valve, a first high-pressure ball valve, a flow regulating valve, a liquid level meter, an oil discharge ball valve, an oil tank, a first oil absorption ball valve, a hand pump, a one-way valve I, a high-pressure filter I, a pressure sensor II, a one-way valve II, a pressure sensor III, a second electromagnetic reversing valve, a high-pressure ball valve II, a high-pressure filter II, a third high-pressure filter, a three one-way valve, a leather bag energy accumulator, a variable pump, a second oil absorption ball valve, an oil;

two ends of the proportional overflow valve are respectively connected to two pipelines between the oil tank and the oil return pipe and the oil inlet pipe, the connecting positions of the proportional overflow valve are respectively close to the first pressure sensor and the second pressure sensor, and the liquid level sensor, the first temperature sensor, the air filter, the liquid level meter and the oil drain ball valve are all arranged on the oil tank;