阅读说明：本技术 一种集成式液压油箱 (Integrated hydraulic oil tank ) 是由 高磊 陈涛 范锐 于 2021-08-07 设计创作，主要内容包括：本申请属于飞机局部液压能源系统设计技术领域,具体涉及一种集成式液压油箱,包括：筒体；活塞,在筒体内设置,能够沿筒体轴向滑动；气相端板,将筒体一端封堵,与活塞之间形成气腔；波纹管,在气腔内设置,一端与活塞连接,另一端与气相端板连接,其内填充有增压气；油相端板,将筒体另一端封堵,与活塞之间形成油腔；换热器,在油腔内设置,连接在油相端板上。(The application belongs to the technical field of local hydraulic energy system design of aircraft, concretely relates to integrated form hydraulic tank, include: a barrel; the piston is arranged in the cylinder and can slide along the axial direction of the cylinder; the gas phase end plate plugs one end of the cylinder body and forms a gas cavity with the piston; the bellows is arranged in the air cavity, one end of the bellows is connected with the piston, the other end of the bellows is connected with the gas-phase end plate, and pressurized gas is filled in the bellows; the oil phase end plate seals the other end of the cylinder body, and an oil cavity is formed between the oil phase end plate and the piston; and the heat exchanger is arranged in the oil cavity and connected to the oil phase end plate.)

1. An integrated hydraulic tank, comprising:

a cylinder (1);

the piston (2) is arranged in the cylinder (1) and can slide along the axial direction of the cylinder (1);

the gas-phase end plate (3) plugs one end of the cylinder (1) and forms a gas cavity with the piston (2);

the bellows (4) is arranged in the air cavity, one end of the bellows is connected with the piston (2), the other end of the bellows is connected with the gas-phase end plate (3), and pressurized gas is filled in the bellows;

the oil phase end plate (5) is used for plugging the other end of the cylinder (1) and forming an oil cavity with the piston (2);

and the heat exchanger (6) is arranged in the oil cavity and connected to the oil phase end plate (5).

2. The integrated hydraulic oil tank of claim 1,

two annular sealing grooves are formed in the edge of the piston (2);

the integrated hydraulic oil tank further comprises:

two sealing rings (8), every sealing ring (8) correspond one set up in the annular seal groove, be located piston (2) between barrel (1).

3. The integrated hydraulic oil tank of claim 1,

the gas-phase end plate (3) is provided with a gas charging hole;

the gas charging hole is communicated with the interior of the corrugated pipe (4), and a gas charging and discharging joint is connected to the gas charging and discharging hole.

4. The integrated hydraulic oil tank of claim 1,

the gas phase end plate (3) is provided with a liquid level measuring through hole;

further comprising:

and the pull rope type displacement sensor (10) is connected to the outer side of the gas phase end plate (3), and a pull rope of the pull rope penetrates through the liquid level measuring through hole to be connected to the piston (2).

5. The integrated hydraulic oil tank of claim 1,

further comprising:

two backing plates (9) are plugged at two ends of the corrugated pipe (4), wherein one backing plate (9) is connected to the piston (2), and the other backing plate (9) is connected to the gas-phase end plate (3).

6. The integrated hydraulic oil tank of claim 1,

the oil tank end plate (5) is provided with two heat exchange through holes;

one heat exchange through hole is communicated with a cold edge inlet of the heat exchanger (6);

and the other heat exchange through hole is communicated with the cold edge outlet of the heat exchanger (6).

7. The integrated hydraulic oil tank of claim 6,

the cold edge inlet is connected with a cold edge inlet joint, the cold edge inlet joint extends out of the corresponding heat exchange through hole, and a nut is screwed on the cold edge inlet joint so as to fasten the heat exchanger (6) on the oil tank end plate (5);

and the cold edge outlet is connected with a cold edge outlet joint, the cold edge outlet joint extends out from the corresponding heat exchange through hole, and a nut is screwed on the cold edge outlet joint so as to fasten the heat exchanger (6) on the oil tank end plate (5).

8. The integrated hydraulic oil tank of claim 1,

the oil tank end plate (5) is provided with an oil return through hole;

and the hot edge inlet of the heat exchanger (6) is communicated with the oil return through hole, and the hot edge outlet is communicated with the oil cavity.

9. The integrated hydraulic oil tank of claim 8,

the hot edge inlet is connected with a hot edge inlet connector, the hot edge inlet connector extends out of the oil return through hole, and a nut is screwed on the hot edge inlet connector so as to fasten the heat exchanger (6) on the oil tank end plate (5).

10. The integrated hydraulic oil tank of claim 1,

the oil tank end plate (5) is provided with an oil return through hole which is provided with an oil absorption through hole;

the integrated hydraulic oil tank further comprises:

and the hydraulic pump (7) is connected to the outer side of the oil phase end plate (5), and an inlet of the hydraulic pump is communicated with the oil absorption through hole.

Technical Field

The application belongs to the technical field of design of local hydraulic energy systems of airplanes, and particularly relates to an integrated hydraulic oil tank.

Background

According to the regional distribution characteristics of hydraulic pressure actuation loads on the aircraft, a distributed hydraulic system is designed to provide hydraulic pressure sources for all hydraulic pressure actuation loads, the distributed hydraulic system is composed of a plurality of scattered local hydraulic energy systems, each local hydraulic energy system mainly comprises a hydraulic oil tank, a hydraulic pump, a heat exchanger and other parts which are scattered, the hydraulic oil tank is the part with the largest volume, the piston is pushed to boost pressure along the axial direction through the piston rod, the large space resources on the aircraft need to be occupied, in addition, the hydraulic system has large mass, the hydraulic system is not beneficial to the weight reduction requirements of the aircraft at present, only has an oil storage and pressurization function, and the functional integration level is low.

The present application has been made in view of the above-mentioned technical drawbacks.

It should be noted that the above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and the above background disclosure should not be used for evaluating the novelty and inventive step of the present application without explicit evidence to suggest that the above content is already disclosed at the filing date of the present application.

Disclosure of Invention

It is an object of the present application to provide an integrated hydraulic tank to overcome or mitigate at least one of the known disadvantages of the prior art.

The technical scheme of the application is as follows:

an integrated hydraulic tank comprising:

a barrel;

the piston is arranged in the cylinder and can slide along the axial direction of the cylinder;

the gas phase end plate plugs one end of the cylinder body and forms a gas cavity with the piston;

the bellows is arranged in the air cavity, one end of the bellows is connected with the piston, the other end of the bellows is connected with the gas-phase end plate, and pressurized gas is filled in the bellows;

the oil phase end plate seals the other end of the cylinder body, and an oil cavity is formed between the oil phase end plate and the piston;

and the heat exchanger is arranged in the oil cavity and connected to the oil phase end plate.

According to at least one embodiment of the present application, in the above-mentioned integrated hydraulic oil tank, two annular seal grooves are formed on the edge of the piston;

the integrated hydraulic oil tank further comprises:

and each sealing ring is correspondingly arranged in one annular sealing groove and is positioned between the piston and the cylinder body.

According to at least one embodiment of the present application, in the above-mentioned integrated hydraulic oil tank, the gas-phase end plate has a gas charging hole;

the air charging hole is communicated with the interior of the corrugated pipe, and an air charging and discharging joint is connected to the air charging and discharging hole.

According to at least one embodiment of the present application, in the above-mentioned integrated hydraulic oil tank, the gas-phase end plate has a liquid level measuring through hole;

further comprising:

and the pull rope type displacement sensor is connected to the outer side of the gas phase end plate, and a pull rope of the pull rope type displacement sensor penetrates through the liquid level measuring through hole to be connected to the piston.

According to at least one embodiment of the present application, the integrated hydraulic oil tank further includes:

and the two backing plates are plugged at two ends of the corrugated pipe, wherein one backing plate is connected to the piston, and the other backing plate is connected to the gas-phase end plate.

According to at least one embodiment of the present application, in the integrated hydraulic oil tank, the pressurization gas is an inert gas.

According to at least one embodiment of the application, in the integrated hydraulic oil tank, two heat exchange through holes are formed in an end plate of the oil tank;

one heat exchange through hole is communicated with the cold edge inlet of the heat exchanger;

and the other heat exchange through hole is communicated with the cold edge outlet of the heat exchanger.

According to at least one embodiment of the application, in the integrated hydraulic oil tank, the cold edge inlet is connected with a cold edge inlet joint, the cold edge inlet joint extends out of the corresponding heat exchange through hole, and a nut is screwed on the cold edge inlet joint so as to fasten the heat exchanger on an oil tank end plate;

the cold edge outlet is connected with a cold edge outlet connector, the cold edge outlet connector extends out from the corresponding heat exchange through hole, and a nut is screwed on the cold edge outlet connector so as to fasten the heat exchanger on the oil tank end plate.

According to at least one embodiment of the application, in the integrated hydraulic oil tank, the oil tank end plate is provided with an oil return through hole;

the hot edge inlet of the heat exchanger is communicated with the oil return through hole, and the hot edge outlet of the heat exchanger is communicated with the oil cavity.

According to at least one embodiment of the application, the hot edge inlet connector is connected to the hot edge inlet, extends out of the oil return through hole, and is screwed with the nut so as to fasten the heat exchanger to the oil tank end plate.

According to at least one embodiment of the application, in the integrated hydraulic oil tank, the heat exchanger is a shell-and-tube heat exchanger, the tube side of the heat exchanger is a cold side, and the shell side of the heat exchanger is a hot side.

According to at least one embodiment of the application, in the integrated hydraulic oil tank, the oil tank end plate is provided with the oil return through hole, and the oil suction through hole is formed in the oil return through hole;

the integrated hydraulic oil tank further comprises:

and the hydraulic pump is connected to the outer side of the oil phase end plate, and an inlet of the hydraulic pump is communicated with the oil absorption through hole.

According to at least one embodiment of the application, in the integrated hydraulic oil tank, an oil gas discharge hole, an oil alarm device mounting hole and a safety valve mounting hole are formed in an oil tank end plate;

the oil gas discharge hole is connected with an oil gas discharge joint;

an oil alarm device is arranged in the oil alarm device mounting hole;

the safety valve is arranged in the safety valve mounting hole.

According to at least one embodiment of the present application, the integrated hydraulic oil tank further includes:

and each nut is correspondingly screwed at one end of the cylinder body so as to tightly press the gas-phase end plate and the oil-phase end plate at two ends of the cylinder body.

Drawings

Fig. 1 is a schematic view of an integrated hydraulic oil tank provided in an embodiment of the present application;

FIG. 2 is a view in the direction A of FIG. 1;

wherein:

1-a cylinder body; 2-a piston; 3-gas phase end plate; 4-a bellows; 5-oil phase end plate; 6-a heat exchanger; 7-a hydraulic pump; 8-sealing ring; 9-a backing plate; 10-stay cord type displacement sensor; 11-screw cap.

For the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; further, the drawings are for illustrative purposes, and terms describing positional relationships are limited to illustrative illustrations only and are not to be construed as limiting the patent.

Detailed Description

In order to make the technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further clearly and completely described in the following detailed description with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only some of the embodiments of the present application, and are only used for explaining the present application, but not limiting the present application. It should be noted that, for convenience of description, only the parts related to the present application are shown in the drawings, other related parts may refer to general designs, and the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment without conflict.

In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the context of describing the application is not to be construed as an absolute limitation on the number, but rather as the presence of at least one. The word "comprising" or "comprises", and the like, when used in this description, is intended to specify the presence of stated elements or items, but not the exclusion of other elements or items.

Further, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are used in the description of the invention in a generic sense, e.g., connected as either a fixed connection or a removable connection or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in this application according to the specific situation.

The present application is described in further detail below with reference to fig. 1-2.

An integrated hydraulic tank comprising:

a cylinder body 1;

the piston 2 is arranged in the cylinder 1 and can slide along the axial direction of the cylinder 1;

a gas phase end plate 3, which plugs one end of the cylinder 1 and forms a gas cavity with the piston 2;

the bellows 4 is arranged in the air cavity, one end of the bellows is connected with the piston 2, the other end of the bellows is connected with the gas-phase end plate 3, and pressurized gas is filled in the bellows;

the oil phase end plate 5 is used for plugging the other end of the cylinder 1 and forms an oil cavity with the piston 2;

and the heat exchanger 6 is arranged in the oil cavity and connected to the oil phase end plate 5.

With respect to the integrated hydraulic reservoir disclosed in the above embodiments, it will be understood by those skilled in the art that the oil chamber thereof may be filled with oil for use as a hydraulic reservoir for each of the distributed local hydraulic energy systems in the distributed hydraulic system of the aircraft.

For the integrated hydraulic oil tank disclosed in the above embodiment, it can be understood by those skilled in the art that the piston 2 can be pushed to slide axially along the cylinder 1 by the pressure generated by the pressurized gas in the bellows 4 to pressurize the oil in the oil chamber, so as to replace the mode of pushing the piston to pressurize the oil by the piston rod axially, and no space is required to be provided for the extension and retraction of the piston rod, thereby saving the space resources on the airplane, furthermore, because the piston rod is not used, there is no need to provide a through hole for the piston rod to pass through on the gas-phase end plate 3 or the oil-phase end plate 5, the thickness of the gas-phase end plate 3 or the oil-phase end plate 5 can be correspondingly reduced, thereby reducing the mass of the hydraulic oil tank and the weight of the airplane, and further saving the space resources on the airplane by pressurizing the pressure generated by the pressurized gas in the bellows 4 without additionally providing power equipment, and reducing the weight of the aircraft.

For the integrated hydraulic oil tank disclosed in the above embodiment, it can be understood by those skilled in the art that the design depends on the pressure generated by the pressurized gas filled in the bellows 4 to pressurize the oil in the oil chamber, the pressurized gas is sealed in the bellows 4, and is not prone to leakage, and the bellows 4 has a long service life, so that the pressurization effect on the oil in the oil chamber can be effectively maintained for a long time.

For the integrated hydraulic oil tank disclosed in the above embodiment, it can be understood by those skilled in the art that the heat exchanger 6 is disposed in the oil cavity, on one hand, the heat exchanger 6 is immersed in the oil liquid, so that the heat exchanger has a large heat exchange area, and can achieve a good cooling effect on the oil liquid; on the other hand, the integration of the heat exchanger 6 on the hydraulic oil tank is realized, the heat exchanger 6 does not need to be installed independently, in addition, a structural dead oil space is easily formed at the position of the oil cavity close to the oil phase end plate 5, the heat exchanger 6 is connected to the oil phase end plate 5, the utilization of the dead oil space can be realized, and the occupation of space resources on the airplane can be further reduced to a certain extent.

In some optional embodiments, in the above-mentioned integrated hydraulic oil tank, the edge of the piston 2 has two annular seal grooves;

the integrated hydraulic oil tank further comprises:

and each sealing ring 8 is correspondingly arranged in one annular sealing groove and is positioned between the piston 2 and the cylinder body 1.

In some alternative embodiments, in the above-mentioned integrated hydraulic oil tank, the gas-phase end plate 3 has a gas charging hole;

the gas charging hole is communicated with the interior of the corrugated pipe 4, and a gas charging and discharging connector is connected to the gas charging and discharging hole, so that the pressurized gas in the corrugated pipe 4 can be charged and discharged through the gas charging and discharging connector, and the pressure of the oil in the oil cavity can be adjusted adaptively.

In some optional embodiments, in the above-mentioned integrated hydraulic oil tank, the gas-phase end plate 3 has a liquid level measurement through hole;

further comprising:

and the pull rope type displacement sensor 10 is connected to the outer side of the gas-phase end plate 3, and a pull rope of the pull rope type displacement sensor penetrates through the liquid level measuring through hole to be connected to the piston 2.

For the integrated hydraulic oil tank disclosed in the above embodiment, it can be understood by those skilled in the art that the pull rope type displacement sensor 10 is fixed outside the gas-phase end plate 3, the pull rope passes through the liquid level measurement through hole and is connected to the piston 2, and the indirect measurement of the amount of oil in the oil chamber is realized by measuring the distance between the gas-phase end plate 3 and the piston 2, without installing a measurement device in the oil chamber, so that the occupation of the space in the oil chamber can be reduced, and the oil can be prevented from being polluted.

In some optional embodiments, the above-mentioned integrated hydraulic oil tank further includes:

and two backing plates 9 which are sealed at two ends of the corrugated pipe 4, wherein one backing plate 9 is connected to the piston 2, and the other backing plate 9 is connected to the gas-phase end plate 3.

For the integrated hydraulic oil tank disclosed in the above embodiment, it can be understood by those skilled in the art that the two base plates 9 are plugged at the two ends of the corrugated tube 4, so that the pressurized gas can be reliably sealed in the corrugated tube 4, thereby preventing the pressurized gas from leaking and affecting the pressurization effect of the oil in the oil chamber, and in addition, when assembling, only the two base plates 9 need to be connected or abutted to the piston 2 and the gas-phase end plate 3, which is simple and efficient.

In some alternative embodiments, in the integrated hydraulic oil tank, the pressurizing gas is an inert gas, and may be nitrogen.

In some alternative embodiments, in the above-mentioned integrated hydraulic oil tank, the tank end plate 5 has two heat exchange through holes;

one heat exchange through hole is communicated with a cold edge inlet of the heat exchanger 6;

and the other heat exchange through hole is communicated with the outlet of the cold edge of the heat exchanger 6.

For the integrated hydraulic oil tank disclosed in the above embodiment, it can be understood by those skilled in the art that two heat exchange through holes are designed on the oil tank end plate 5, one heat exchange through hole is communicated with the cold edge inlet of the heat exchanger 6, and the other heat exchange through hole is communicated with the cold edge outlet of the heat exchanger 6, that is, the cold edge inlet and the cold edge outlet of the heat exchanger 6 are designed to closely abut against the oil tank end plate 5, so that the tightness of the cold edge inlet and the cold edge outlet of the heat exchanger 6 can be ensured, and the mixing of the cooling medium and the oil liquid can be prevented.

In some optional embodiments, in the above-mentioned integrated hydraulic oil tank, the cold-side inlet is connected to a cold-side inlet joint, the cold-side inlet joint extends out from the corresponding heat exchange through hole, and a nut is screwed on the cold-side inlet joint to fasten the heat exchanger 6 on the oil tank end plate 5;

the cold edge outlet is connected with a cold edge outlet connector, the cold edge outlet connector extends out from the corresponding heat exchange through hole, and a nut is screwed on the cold edge outlet connector so as to fasten the heat exchanger 6 on the oil tank end plate 5.

In some alternative embodiments, in the above-mentioned integrated hydraulic oil tank, the oil tank end plate 5 has an oil return through hole;

the hot edge inlet of the heat exchanger 6 is communicated with the oil return through hole, and the hot edge outlet is communicated with the oil cavity.

For the integrated hydraulic oil tank disclosed in the above embodiment, as can be understood by those skilled in the art, the oil return through hole on the oil tank end plate 5 is designed to be communicated with the hot edge inlet of the heat exchanger 6, the oil of the oil return flow can firstly flow into the hot edge of the heat exchanger 6 through the oil return through hole to exchange heat with the cooling medium, and then flows into the oil chamber to be mixed with the oil in the oil chamber, so that the heat sink capacity of the cooling medium can be fully utilized to realize efficient cooling of the oil, in addition, the oil flowing back in the hot edge of the heat exchanger 6 and the oil in the oil chamber have approximately the same pressure, so that the unbalanced force borne by the heat exchanger 6 can be reduced, the possibility that the heat exchanger 6 is damaged by unbalanced force can be avoided, and the thickness of the relevant parts on the heat exchanger 6 can be reduced accordingly, so that the quality of the heat exchanger 6 can be reduced, and the quality of the aircraft can be further reduced.

For the integrated hydraulic oil tank disclosed in the above embodiment, it can be understood by those skilled in the art that the oil return through hole on the oil tank end plate 5 is designed to be communicated with the hot edge inlet of the heat exchanger 6, that is, the hot edge inlet of the heat exchanger 6 is designed to be closely attached to the oil tank end plate 5, so that the sealing performance of the hot edge inlet of the heat exchanger 6 can be ensured, and the backflow oil and the oil in the oil chamber are prevented from being directly mixed.

In some alternative embodiments, the hot-side inlet of the integrated hydraulic oil tank is connected with a hot-side inlet connector, the hot-side inlet connector extends out of the oil return through hole, and a nut is screwed on the hot-side inlet connector to fasten the heat exchanger 6 on the oil tank end plate 5.

In some optional embodiments, in the above-mentioned integrated hydraulic oil tank, the heat exchanger 6 is a shell-and-tube heat exchanger, the tube side of the heat exchanger 6 is a cold side, and the shell side is a hot side.

In some optional embodiments, in the above-mentioned integrated hydraulic oil tank, the oil tank end plate 5 has an oil return through hole and an oil suction through hole;

the integrated hydraulic oil tank further comprises:

and the hydraulic pump 7 is connected to the outer side of the oil phase end plate 5, and an inlet of the hydraulic pump is communicated with the oil absorption through hole.

For the integrated hydraulic oil tank disclosed in the above embodiment, it can be understood by those skilled in the art that the pressurization of the oil in the oil chamber can be realized by the pressure generated by the pressurized gas in the bellows 4, instead of pushing the piston to pressurize the oil by the piston rod in the axial direction, the occupied area of the piston rod does not need to be considered on the end surface of the oil phase end plate 5, so that the outer end surface of the oil phase end plate 5 has a larger available area for installing the hydraulic pump 7, the hydraulic pump 7 is integrated on the hydraulic oil tank, the hydraulic pump 7 does not need to be installed separately, and the installation and the use are convenient, and the occupation of space resources on an airplane can be reduced.

In some optional embodiments, in the integrated hydraulic oil tank, the oil tank end plate 5 is provided with an oil gas discharge hole, an oil alarm device mounting hole and a safety valve mounting hole;

the oil gas discharge hole is connected with an oil gas discharge joint;

an oil alarm device is arranged in the oil alarm device mounting hole;

the safety valve is arranged in the safety valve mounting hole.

In some optional embodiments, the above-mentioned integrated hydraulic oil tank further includes:

and each nut 11 is correspondingly screwed at one end of the cylinder 1 so as to tightly press the gas-phase end plate 3 and the oil-phase end plate 5 at two ends of the cylinder 1.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

Having thus described the present application in connection with the preferred embodiments illustrated in the accompanying drawings, it will be understood by those skilled in the art that the scope of the present application is not limited to those specific embodiments, and that equivalent modifications or substitutions of related technical features may be made by those skilled in the art without departing from the principle of the present application, and those modifications or substitutions will fall within the scope of the present application.