CN2694018Y - Apparatus having high pressure experimenting and cleaning functions for aerostat hydraulic system - Google Patents
Apparatus having high pressure experimenting and cleaning functions for aerostat hydraulic system Download PDFInfo
- Publication number
- CN2694018Y CN2694018Y CN 200420033188 CN200420033188U CN2694018Y CN 2694018 Y CN2694018 Y CN 2694018Y CN 200420033188 CN200420033188 CN 200420033188 CN 200420033188 U CN200420033188 U CN 200420033188U CN 2694018 Y CN2694018 Y CN 2694018Y
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- hydraulic system
- oil
- aerospace craft
- relief valve
- potting
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Abstract
The utility model relates to an apparatus having high pressure experimenting and cleaning functions for aerostat hydraulic system which is mainly composed of an oil tank, an oil pump connected by a pipe casting and the oil tank, an oil inlet flow passage connected between an outlet of the oil pump and an inlet of the hydraulic system of the aerostat, an oil back flow passage connected between an inlet of the oil tank and an outlet of the hydraulic system of the aerostat, and an overflowing branch arranged between the oil inlet flow passage and the oil back flow passage. The overflowing branch is made up by the easing valve and the fuel filter in series, and an electromagnetic proportional easing valve for the easing valve is better chosen by the overflowing branch. The high pressure experimenting and cleaning for aerostat hydraulic system can be realized through adjusting the opening pressure of the easing valve by this apparatus, the price ratio of this apparatus is increased, and the utility model is in convenient for the miniaturization of the equipment.
Description
Technical field
The utility model relates to high-potting and the washing unit that the aerospace craft hydraulic system is used, and particularly the aerospace craft hydraulic system is had concurrently the device of high-potting and washing function.
Background technique
It is reported, aerospace craft hydraulic systems such as aircraft, rocket, guided missile are carried out the device that high-potting uses be generally the high pressure oil pump truck, the device that aerospace craft hydraulic systems such as aircraft, rocket, guided missile is cleaned usefulness is generally cleaning Vehicle, thereby the user will be equipped with the demand that two kinds of devices could satisfy aerospace craft hydraulic system high-potting and cleaning, so not only increase equipment purchasing expense and placement space, and make troubles to use.Even some device has high-potting and washing function concurrently to the aerospace craft hydraulic system, also be the simple superposition of high pressure oil pump truck and cleaning Vehicle structurally, be difficult to reduce manufacture cost and improve performance.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of device that the aerospace craft hydraulic system is had concurrently high-potting and washing function is provided, this kind device is not only simple in structure, and can realize off line cleaning self oil-way system and connect machine cleaning the aerospace craft hydraulic system.
The technical solution of the utility model: existing high pressure oil pump truck is improved, an overflow branch road is set between its oil-feed stream and oil return stream, utilize P (pressure)/V (voltage) characteristic curve of relief valve in the overflow branch road, rated working pressure according to the aerospace craft hydraulic system, the cracking pressure of relief valve is set and adjusted to maximum delivery pressure of oil pump and high-potting and cleaning operating mode, can realize off line cleaning device self oil-way system and to the keep a public place clean cleaning of the very high pulsation random fashion of quality and efficient of aircraft hydraulic system by the overflow branch road, to guarantee aerospace craft hydraulic system safety, increase the service life.
Described in the utility model the aerospace craft hydraulic system is had concurrently the device of high-potting and washing function mainly by fuel tank, the oil pump that is connected with fuel tank by pipe fitting, be connected the oil-feed stream between oil pump delivery outlet and the aerospace craft hydraulic system inlet opening, be connected the oil return stream between fuel tank inlet opening and the aerospace craft hydraulic system delivery outlet, the overflow branch road that is provided with between oil-feed stream and the oil return stream constitutes, and the route relief valve is propped up in this overflow and oil purifier is in series.Relief valve is preferably selected electromagnetic proportion relief valve for use, and to be 1Mpa add 0.5～3Mpa to the maximum delivery pressure of oil pump to the cracking pressure of electromagnetic proportion relief valve.
Said apparatus both can be installed in movably on the car, also can be installed in a certain position that the user determines.
The utlity model has following beneficial effect:
1, between the fuel feeding stream of high pressure oil pump truck and oil return stream, the overflow branch road is set, can realize high-potting and cleaning by the cracking pressure of adjusting relief valve to the aerospace craft hydraulic system, thereby improved the cost performance of installing, help the miniaturization of equipment.
2, this device has multiple function, both can carry out high-potting to the aerospace craft hydraulic system, but off line is cleaned and connected the machine cleaning again, also can change a fuel reserve tank into by the aerospace craft hydraulic system with cleaning load, and oil plant is cleaned deposit.
3, utilize the V/P curve of electromagnetic proportion relief valve and the motor speed of adjustment oil pump to change the size of flow and pressure, thereby realize the cleaning that random pulse changes, can reach keep a public place clean quality and the very high cleaning performance of efficient.
The alternate cycles formula cleaning of 4, infiltrating mutually is higher than the efficient of the single regular pulsation wash cycles of old-fashioned wash oil pump truck, because the former has overflow branch road circuit to add flushing dose.
5, the appearance of this device has changed the traditional safety protection function of skimmer circuit, makes it obtain new purposes expansion.
Description of drawings
Fig. 1 is a kind of structural drawing that the aerospace craft hydraulic system is had concurrently the device of high-potting and washing function described in the utility model, and aerospace craft is an aircraft.
Among the figure, 1-fuel tank, 2-oil pump, 3-one-way valve, 4-oil purifier, 5-pressure transducer, 6-relief valve, 7-oil purifier, 8-radiator, 9-one-way valve, 10-one-way valve, 11-plane hydraulic system.
Embodiment
With the plane hydraulic system is example, and structure, function and the working principle that has the device of high-potting and washing function concurrently described in the utility model is described further.The rated working pressure of plane hydraulic system is 19.6～20Mpa.
As shown in Figure 1, the device that has high-potting and washing function concurrently described in the utility model comprises fuel tank 1, the oil pump 2 (the maximum delivery pressure of oil pump is set at 21Mpa) that is connected with fuel tank by pipe fitting, by one-way valve 3, the oil-feed stream that oil purifier 4 and one-way valve 9 are followed in series to form, by radiator 8, the oil return stream that one-way valve 10 series connection constitute, (cracking pressure is 1.8Mpa to 23Mpa by electromagnetic proportion relief valve 6, the commercial goods is arranged), the overflow branch road that oil purifier 7 series connection constitute, the oil-feed stream is connected between the inlet opening of the delivery outlet of oil pump 2 and plane hydraulic system 11, the oil return stream is connected between the delivery outlet of the inlet opening of fuel tank 1 and plane hydraulic system 11, and the overflow branch road is arranged between oil-feed stream and the oil return stream.
The function of said apparatus and working principle:
1, the high-potting of plane hydraulic system
Adjust the cracking pressure of relief valve 6, make it be higher than the maximum delivery pressure 21Mpa of oil pump 2, then the flow on the overflow branch road levels off to 0, whole fluid of oil pump 2 outputs enter the oil-feed stream, when plane hydraulic system does not do work, flow → 0, oil pump enter the flow unloading situation under the maximum pressure conditions, the packing state that promptly is often referred to.When plane hydraulic system is opened, to flow requirement is arranged, when wanting work done, the delivery pressure P of system will be less than 21Mpa, working flow is big more, pressure decline is many more.At this moment, whole power of oil pump 2 outputs all are used for the high-potting of plane hydraulic system, and the overflow branch road then provides pressure protect to system.
2, off line is cleaned
Utilize the P/V curve of electromagnetic proportion relief valve 6, the cracking pressure of relief valve is arranged on variation between 14 (or littler)～21Mpa (changing at random or by cycle time), then overflow branch road and oil-feed stream, oil return stream and fuel tank 1, oil pump 2 form a closed-loop path, under the pressure condition of pulsatile change, carry out the off line of full flow and clean, finish the filtration of installing self main loop is kept a public place clean.
3, connect the cleaning of aircraft
This is to utilize the variation in pressure parameter on oil-feed stream and the overflow branch road to compensate mutually, and alternately control makes a kind of method up to standard of cleaning.
When the cracking pressure of relief valve 6 changes when doing cleaning at 14 (or littler)～21Mpa,, load (being plane hydraulic system 11) will make system pressure P produce a precipitous drop amount as long as opening.As signal, the relief valve cracking pressure is adjusted to greater than 21Mpa, this moment, whole fluid of oil pump 2 outputs did work aboard, system pressure P then can be with loading on fluctuations between 20～19.6Mpa (even lower), because the relief valve cracking pressure is greater than 21Mpa, thereby the overflow branch road does not have flow.P is stabilized in 21Mpa when system pressure, and plane hydraulic system 11 no traffic demands are described, at this moment, the cracking pressure of relief valve is adjusted between 14 (or low)～21Mpa again and changes the cleaning of pulsing.So move in circles, the fluid of oil-feed stream, overflow branch road and plane hydraulic system obtains cleaning after the oil return stream replaces repeatedly, the purpose that the company's of realization machine cleans.
4, will clean load and change a fuel reserve tank into, then can clean deposit oil plant by plane hydraulic system.
Device described in the utility model is not only applicable to the high-potting and the cleaning of aerospace craft hydraulic system, and the hydraulic system that also can be widely used in miscellaneous equipment and machine is carried out high-potting and cleaning.
Claims (3)
1, a kind of device that the aerospace craft hydraulic system is had concurrently high-potting and washing function, comprise fuel tank (1), the oil pump (2) that is connected with fuel tank by pipe fitting, be connected the oil-feed stream between oil pump delivery outlet and the aerospace craft hydraulic system inlet opening, be connected the oil return stream between fuel tank inlet opening and the aerospace craft hydraulic system delivery outlet, it is characterized in that being provided with between oil-feed stream and the oil return stream one and can realize off line cleaning self oil-way system and connect the overflow branch road that machine cleans the aerospace craft hydraulic system that route relief valve (6) is propped up in this overflow and oil purifier (7) series connection constitutes.
2, according to claim 1 the aerospace craft hydraulic system is had concurrently the device of high-potting and washing function, it is characterized in that relief valve (6) is an electromagnetic proportion relief valve.
3, according to claim 2 the aerospace craft hydraulic system is had concurrently the device of high-potting and washing function, to be 1Mpa add 0.5～3Mpa to the maximum delivery pressure of oil pump (2) to the cracking pressure that it is characterized in that electromagnetic proportion relief valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420033188 CN2694018Y (en) | 2004-03-12 | 2004-03-12 | Apparatus having high pressure experimenting and cleaning functions for aerostat hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420033188 CN2694018Y (en) | 2004-03-12 | 2004-03-12 | Apparatus having high pressure experimenting and cleaning functions for aerostat hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2694018Y true CN2694018Y (en) | 2005-04-20 |
Family
ID=34772722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420033188 Expired - Lifetime CN2694018Y (en) | 2004-03-12 | 2004-03-12 | Apparatus having high pressure experimenting and cleaning functions for aerostat hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2694018Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102397814A (en) * | 2011-11-14 | 2012-04-04 | 上海电气液压气动有限公司 | Safety guarantee mechanism in coal mill lubricating and cooling system |
| CN102434535A (en) * | 2011-12-08 | 2012-05-02 | 中国海洋石油总公司 | Equivalent simulation testing system of hydraulic control system of underwater production facility |
| CN105971979A (en) * | 2016-06-15 | 2016-09-28 | 沈阳飞机工业（集团）有限公司 | Hydraulic system blowing, cleaning and sealing multifunction all-in-one test bed |
| CN108591140A (en) * | 2018-04-25 | 2018-09-28 | 中国人民解放军空军南京航空四站装备修理厂 | The load test stand of aviation hydraulic oil pump vehicle |
| CN109973467A (en) * | 2018-11-16 | 2019-07-05 | 湖北江山重工有限责任公司 | Mobile hydraulic cleaning systems and pressure experimental device |
| CN113236634A (en) * | 2021-06-16 | 2021-08-10 | 北京中航世科电子技术有限公司 | Oil liquid purification device for oil pump vehicle |
-
2004
- 2004-03-12 CN CN 200420033188 patent/CN2694018Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102397814A (en) * | 2011-11-14 | 2012-04-04 | 上海电气液压气动有限公司 | Safety guarantee mechanism in coal mill lubricating and cooling system |
| CN102434535A (en) * | 2011-12-08 | 2012-05-02 | 中国海洋石油总公司 | Equivalent simulation testing system of hydraulic control system of underwater production facility |
| CN102434535B (en) * | 2011-12-08 | 2014-04-30 | 中国海洋石油总公司 | Equivalent simulation testing system of hydraulic control system of underwater production facility |
| CN105971979A (en) * | 2016-06-15 | 2016-09-28 | 沈阳飞机工业（集团）有限公司 | Hydraulic system blowing, cleaning and sealing multifunction all-in-one test bed |
| CN105971979B (en) * | 2016-06-15 | 2017-10-24 | 沈阳飞机工业（集团）有限公司 | Hydraulic system blowing cleaning sealing multifunctional integrated test stand |
| CN108591140A (en) * | 2018-04-25 | 2018-09-28 | 中国人民解放军空军南京航空四站装备修理厂 | The load test stand of aviation hydraulic oil pump vehicle |
| CN109973467A (en) * | 2018-11-16 | 2019-07-05 | 湖北江山重工有限责任公司 | Mobile hydraulic cleaning systems and pressure experimental device |
| CN113236634A (en) * | 2021-06-16 | 2021-08-10 | 北京中航世科电子技术有限公司 | Oil liquid purification device for oil pump vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140312 Granted publication date: 20050420 |