Piston accumulator with a damping function

Abstract

This utility model belongs to the technical field of piston accumulators and discloses a piston accumulator with a buffering function. It includes a housing, a gas chamber on one side of the housing extending through both sides, a piston inside the gas chamber, a pair of rubber rings fitted around the piston, a buffer block on one side of the piston, and a rubber block on the other side of the piston. A first sealing cover and a second sealing cover are connected to the two ends of the housing located at the gas chamber. This device, through the rubber rings, buffer block, and rubber block, effectively buffers and protects the piston. The air chamber and air cushion holes effectively absorb impact kinetic energy, further reducing the impact force.

Description

Technical Field

[0001] This utility model belongs to the technical field of piston accumulators, and more specifically, it relates to a piston accumulator with a buffer function. Background Technology

[0002] A piston accumulator is an energy storage device that uses a piston to separate liquid from compressed gas, and it is widely used in hydraulic systems. It stores hydraulic energy through compressed gas and releases it when needed by the system to balance pressure, absorb shocks, and stabilize flow. It has a simple structure, rapid response, and is suitable for high-pressure, high-flow applications, commonly used in engineering machinery, wind power equipment, and hydraulic control systems.

[0003] Current piston accumulators have poor buffering performance when in use. In high-frequency, high-pressure or impact-load hydraulic systems, when the piston moves at high speed and approaches the two ends of the cylinder, it lacks a deceleration mechanism and is prone to hitting the cylinder bottom or cylinder head, generating noise, vibration and even damage. At the same time, when there is pressure pulsation or hydraulic shock in the system, the piston accumulator cannot effectively absorb high-frequency fluctuations because it has no buffer throttling structure, which affects the stability of the system.

[0004] Therefore, in view of this, we will study and improve the existing structure and its shortcomings to provide a piston-type accumulator with buffering function, in order to achieve a more practical value. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a piston-type accumulator with a buffer function, which is achieved by the following specific technical means:

[0006] A piston-type accumulator with a buffer function includes a housing, a gas chamber on one side of the housing, the gas chamber extending through both sides of the housing, a piston disposed inside the gas chamber, a pair of rubber rings fitted around the outside of the piston, a buffer block disposed on one side of the piston, and a rubber block disposed on the other side of the piston. A first sealing cover and a second sealing cover are respectively connected to the two ends of the housing located at the gas chamber.

[0007] Furthermore, an inflation valve is connected to one side of the first sealing cover, and a hydraulic interface is connected to one side of the second sealing cover. Both the inflation valve and the hydraulic interface are connected to the gas chamber.

[0008] Furthermore, an air cavity is provided inside the piston.

[0009] Furthermore, the rubber block has air cushion holes corresponding to the air cavity.

[0010] Furthermore, the shell is made of high-strength steel.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In this invention, the rubber ring, buffer block, and rubber block effectively cushion and protect the piston. The air cavity and air cushion hole effectively absorb impact kinetic energy and further reduce impact force. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the overall structure of the piston of this utility model.

[0015] Figure 3 This is a cross-sectional schematic diagram of the piston of this utility model.

[0016] Figure 4 This is a side sectional view of the overall structure of this utility model.

[0017] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0018] 1. Shell; 2. Gas chamber; 3. Piston; 4. Rubber ring; 5. Buffer block; 6. Rubber block; 7. First sealing cover; 8. Second sealing cover; 9. Inflation valve; 10. Hydraulic interface; 11. Air chamber; 12. Air cushion hole. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] Example:

[0021] As attached Figure 1 To be continued Figure 4 As shown:

[0022] This utility model provides a piston-type accumulator with a buffer function, including a housing 1, a gas chamber 2 opened on one side of the housing 1, the gas chamber 2 passing through both sides of the housing 1, a piston 3 is arranged in the gas chamber 2, a pair of rubber rings 4 are sleeved on the outside of the piston 3, a buffer block 5 is arranged on one side of the piston 3, and a rubber block 6 is arranged on the other side of the piston 3. A first sealing cover 7 and a second sealing cover 8 are respectively connected to the two ends of the housing 1 located in the gas chamber 2.

[0023] The first sealing cover 7 has an inflation valve 9 connected to one side, and the second sealing cover 8 has a hydraulic interface 10 connected to one side. Both the inflation valve 9 and the hydraulic interface 10 are connected to the gas chamber 2.

[0024] The piston 3 has an air cavity 11 inside, which can effectively absorb impact kinetic energy.

[0025] Among them, the rubber block 6 has an air cushion hole 12 corresponding to the air cavity 11, and the air cushion hole 12 can effectively relieve the impact force of the piston 3.

[0026] Among them, the shell 1 is made of high-strength steel. High-strength steel can withstand high pressure, has a hard texture, and has a long service life.

[0027] The working principle of this embodiment is as follows: This utility model is a piston-type accumulator. In use, nitrogen is first introduced into the gas chamber 2 through the inflation valve 9 on the first sealing cover 7 to pre-charge it. Then, the second sealing cover 8 is connected to the hydraulic system through the hydraulic interface 10. When the system pressure increases, the hydraulic oil pushes the piston 3 to compress the gas and store energy. When the pressure decreases, the gas expands and pushes the piston 3 to release energy. Unlike the traditional piston 3 structure, the piston 3 of this accumulator is equipped with a buffer block 5 and a rubber block 6, which can effectively absorb the impact force at the end of the movement. It is equipped with an air chamber 11 and an air cushion hole 12 inside, which form an air cushion buffer when the piston 3 moves at high speed, significantly reducing the impact and avoiding hard impacts, thereby improving the stability of system operation and the service life of equipment.

[0028] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A piston-type accumulator with a buffer function, comprising a housing (1), characterized in that: A gas chamber (2) is provided on one side of the housing (1), the gas chamber (2) runs through both sides of the housing (1), a piston (3) is provided in the gas chamber (2), a pair of rubber rings (4) are sleeved on the outside of the piston (3), a buffer block (5) is provided on one side of the piston (3), and a rubber block (6) is provided on the other side of the piston (3). A first sealing cover (7) and a second sealing cover (8) are respectively connected to the two ends of the housing (1) located in the gas chamber (2).

2. The piston-type accumulator with buffering function as described in claim 1, characterized in that: One side of the first sealing cover (7) is connected to an inflation valve (9), and one side of the second sealing cover (8) is connected to a hydraulic interface (10). Both the inflation valve (9) and the hydraulic interface (10) are connected to the gas chamber (2).

3. The piston-type accumulator with buffering function as described in claim 1, characterized in that: An air cavity (11) is provided inside the piston (3).

4. A piston-type accumulator with buffering function as described in claim 3, characterized in that: The rubber block (6) has an air cushion hole (12) corresponding to the air cavity (11).

5. A piston-type accumulator with buffering function as described in claim 1, characterized in that: The shell (1) is made of high-strength steel.

Images