Split type diaphragm capsule energy accumulator for spaceflight

Abstract

The utility model discloses a spaceflight split type diaphragm capsule energy accumulator, and particularly relates to the field of diaphragm capsule energy accumulators, the spaceflight split type diaphragm capsule energy accumulator comprises a long cylindrical shell, the length of the shell is more than 1.5 times of the diameter of the shell, the interior of the shell is hollow, two ends of the shell are provided with outer sealing covers, and two sides of an inner cavity of the shell are respectively provided with a first diaphragm capsule and a second diaphragm capsule. And a joint pipe communicated with the inner cavity of the shell is arranged outside the middle section of the shell. The split diaphragm capsule scheme is adopted, the first diaphragm capsule and the second diaphragm capsule are arranged in the energy accumulator, compared with a single diaphragm capsule with the same height, the arrangement of a middle guide ring can be reduced, meanwhile, the height of the single diaphragm capsule is reduced, and then the anti-vibration performance of the diaphragm capsule in the using process can be improved; and meanwhile, the difficulty of process production, packaging and transportation of the energy accumulator is also reduced.

Description

Technical Field

[0001] The utility model relates to the field of diaphragm accumulators, and more specifically, to a split diaphragm accumulator for aerospace applications. Background Art

[0002] The conventional metal accumulators used in the current market have a single diaphragm inside, and the overall structure consists of a diaphragm assembly and a shell to form an accumulator. When the diameter of the diaphragm is limited, to increase the internal volume of the diaphragm, the length of the diaphragm needs to be increased. Generally, when the length of a single diaphragm exceeds 1.5 times the diameter, an intermediate guide ring needs to be added. When the length of the diaphragm increases, its anti-vibration performance will decay accordingly. Usually, an overly long diaphragm performs poorly in vibration tests. If a split diaphragm solution is adopted, under the same volume condition, since a single diaphragm is divided into two, the length of each diaphragm is shortened to half of that of a single diaphragm, and its anti-vibration performance is greatly improved. Summary of the Utility Model

[0003] To solve the above technical problems, the utility model provides a split diaphragm accumulator for aerospace applications, which includes a long cylindrical shell with a length more than 1.5 times the diameter of the shell. The interior of the shell is hollow, and outer covers are installed at both ends of the shell. A first diaphragm and a second diaphragm are respectively arranged on both sides of the inner cavity of the shell, and a joint pipe communicating with the inner cavity of the shell is installed outside the middle section of the shell.

[0004] In a preferred embodiment, the first diaphragm and the second diaphragm are symmetrically arranged through the joint pipe. Inner covers are installed at the ends of the first diaphragm and the second diaphragm close to each other, and the ends of the first diaphragm and the second diaphragm far from each other are fixed on the inner wall of the outer cover.

[0005] In a preferred embodiment, the interiors of the first diaphragm and the second diaphragm are not communicated with the inner cavity of the shell.

[0006] In a preferred embodiment, connection holes are opened at both ends of the shell, and the connection holes at both ends are respectively communicated with the interiors of the first diaphragm and the second diaphragm.

[0007] Technical Effects and Advantages of the Utility Model

[0008] The utility model adopts a split diaphragm solution, with a first diaphragm and a second diaphragm separately arranged inside the accumulator. Compared with a single diaphragm of the same height, the arrangement of the intermediate guide ring can be reduced, and at the same time, the height of a single diaphragm can be reduced, thereby improving the anti-vibration performance of the diaphragm during use. At the same time, the difficulty of the process production and packaging transportation of the accumulator is also reduced. Description of the Drawings

[0009] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0010] Figure 2 is the left - view structural schematic diagram of the present utility model;

[0011] Figure 3 of the present utility model Figure 2 is the detailed structural schematic diagram at A - A in the middle.

[0012] Explanation of reference numerals: 1 housing, 2 first diaphragm box, 3 second diaphragm box, 4 connecting pipe, 5 inner cover, 6 connecting hole, 7 outer cover. Specific embodiments

[0013] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments. The embodiments of the present utility model are given for the purpose of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

[0014] As Figures 1-3 shown, a split - type diaphragm box accumulator for aerospace applications includes a long - cylindrical housing 1, the length of the housing 1 is more than 1.5 times its diameter, the interior of the housing 1 is hollow, outer covers 7 are installed at both ends of the housing 1, a first diaphragm box 2 and a second diaphragm box 3 are respectively arranged on both sides of the inner cavity of the housing 1, and a connecting pipe 4 communicating with the inner cavity of the housing 1 is installed outside the middle section of the housing 1;

[0015] The first diaphragm box 2 and the second diaphragm box 3 are symmetrically arranged through the connecting pipe 4. Inner covers 5 are installed at the ends of the first diaphragm box 2 and the second diaphragm box 3 that are close to each other, and the ends of the first diaphragm box 2 and the second diaphragm box 3 that are far from each other are fixed on the inner wall of the outer cover 7;

[0016] The interiors of the first diaphragm box 2 and the second diaphragm box 3 are not in communication with the inner cavity of the housing 1.

[0017] Connecting holes 6 are opened at both ends of the housing 1, and the connecting holes 6 at both ends are respectively in communication with the interiors of the first diaphragm box 2 and the second diaphragm box 3.

[0018] Among them, the connecting pipe 4 is used to connect the oil - liquid part of the system, and the connecting hole 6 is also in communication with the external gas - circuit pipeline.

[0019] Based on the above, the diaphragm box accumulator stores energy by compressing the first diaphragm box 2 and the second diaphragm box 3 inside the housing 1 to store the system liquid or releasing the internal liquid back into the system.

[0020] When the volume of the oil in the system changes with temperature or the system pressure changes instantaneously, the accumulator will compensate the system, thereby reducing system vibration, regulating system pressure, etc.

[0021] Further, in use, the connecting pipe 4 is connected to the oil part of the input system, and the internal volume of the accumulator is changed by compressing the first bellows 2 and the second bellows 3 at both ends in the housing 1, so as to regulate the oil pressure of the system.

[0022] The bellows inside the housing 1 adopts a split bellows scheme, with the first bellows 2 and the second bellows 3 arranged separately. Compared with a single bellows of the same height, the arrangement of the intermediate guide ring can be reduced, and at the same time, the height of a single bellows is reduced. Furthermore, the vibration resistance performance of the bellows during use can be improved, and at the same time, the difficulty of the process production and packaging transportation of the accumulator is reduced.

[0023] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A split diaphragm accumulator for aerospace applications, characterized in that, It includes a long cylindrical housing, the length of the housing is more than 1.5 times the diameter of the housing, the inside of the housing is hollow, outer covers are installed at both ends of the housing, a first diaphragm box and a second diaphragm box are respectively arranged on both sides of the inner cavity of the housing, and a connecting pipe communicating with the inner cavity of the housing is installed outside the middle section of the housing.

2. The split diaphragm accumulator for aerospace use according to claim 1, characterized in that: The first diaphragm box and the second diaphragm box are symmetrically arranged through the connecting pipe, inner covers are installed at the ends of the first diaphragm box and the second diaphragm box close to each other, and the ends of the first diaphragm box and the second diaphragm box far from each other are fixed on the inner walls of the outer covers.

3. The split diaphragm accumulator for aerospace use according to claim 1, characterized in that: The interiors of the first diaphragm box and the second diaphragm box are not communicated with the inner cavity of the housing.

4. The split diaphragm accumulator for aerospace use according to claim 1, characterized in that: Connection holes are respectively opened at both ends of the housing, and the connection holes at both ends are respectively communicated with the interiors of the first diaphragm box and the second diaphragm box.

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