A blade-type magnetorheological fluid vibration damper

Abstract

This utility model provides a blade-type magnetorheological fluid vibration damper, including a fixed base with a fixed lug welded on it. A fixed tube is fixed to one side of the fixed base, and a movable base is fixed to one end of the fixed tube. A support mechanism is movably installed between the movable base and the fixed base. A protective cover is movably installed inside the support mechanism, with one end of the protective cover fixed to the movable base. A limit cylinder is fixed to the inner wall of the fixed base, and the protective cover movably contacts the limit cylinder. An oil injection valve is fixedly installed on the fixed tube. In use, this blade-type magnetorheological fluid vibration damper utilizes the support mechanism and the movable rod to achieve dual vibration damping and buffering for the entire device. With the movable column providing support for the movable base, the support mechanism can buffer and dampen small vibrations.

Description

Technical Field

[0001] This utility model relates to the field of magnetorheological fluid vibration damper equipment, specifically a blade-type magnetorheological fluid vibration damper. Background Technology

[0002] Vane-type magnetorheological fluid dampers belong to electronic damping devices. They can achieve the damping effect of automobile chassis by utilizing the changes in the rheological properties of magnetorheological fluid in a magnetic field. Furthermore, the damping effect of vane-type magnetorheological fluid dampers is faster and the degree of damping is more controllable.

[0003] According to patent document CN222067457U, a blade-type magnetorheological fluid vibration damper is disclosed. This damper includes a blade-type magnetorheological fluid vibration damper with an external structure comprising a damping piston cylinder, an oil storage pressure cylinder, an upper support, and a lower support. The upper support is fixedly connected to the axial side wall of the damping piston cylinder, and the lower support is fixedly connected to the axial side wall of the oil storage pressure cylinder. A lubrication assembly is also included, comprising a transfer bracket fixedly connected to the outer wall of the damping piston cylinder, with an additive cylinder fixedly connected to the transfer bracket. In this design, during operation, the lubrication assembly utilizes the pressure change inside the additive cylinder to propel lubricating oil onto the outer wall of the oil storage pressure cylinder, maintaining lubrication at the friction points of the outer wall and reducing operating losses. However, while this design achieves lubrication, it cannot provide dual-buffering vibration damping, resulting in inconvenience during use. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a blade-type magnetorheological fluid vibration damper to solve the problems mentioned in the background. This invention has a novel structure. In use, the support mechanism and the movable rod work together to achieve dual vibration damping and buffering for the entire equipment. With the movable column providing support for the movable seat, the support mechanism can complete the buffering and vibration reduction under small vibrations.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a blade-type magnetorheological fluid vibration damper includes a fixed base, on which a fixed lug is welded; a fixed tube is fixed to one side of the fixed base; a movable base is fixed to one end of the fixed tube; a support mechanism is movably installed between the movable base and the fixed base; a protective cover is movably installed inside the support mechanism; one end of the protective cover is fixed to the movable base; a limiting cylinder is fixed to the inner wall of the fixed base; and the protective cover movably contacts the outer wall of the limiting cylinder.

[0006] Furthermore, an oil injection valve is fixedly installed on the fixed pipe, and the oil injection valve moves in coordination with the protective cover.

[0007] Furthermore, the bottom of the movable seat has an annular groove, and a movable rod is fixedly installed inside the annular groove. One end of the movable rod is fixed with a support tube.

[0008] Furthermore, the fixed tube has an internal cavity, and a movable column is movably installed inside the cavity, with a support base welded onto the movable column.

[0009] Furthermore, the support tube is fixedly installed on the support base, and a pipe is fixed at the bottom of the support tube, with one end of the pipe fixed inside the movable column.

[0010] Furthermore, a support lug is fixed to one end of the movable column, and a sealing seat is movably mounted on the movable column, with the sealing seat fixed to the bottom of the movable seat.

[0011] Furthermore, the fixed tube has an internal cavity, and the movable column is movably installed inside the cavity. One end of the movable column is fixed with a sealing ring, and the sealing ring is movably installed on the inner wall of the cavity.

[0012] Furthermore, the movable column has an opening inside, which is connected to a pipe. The support pipe has a connecting cavity inside, and a piston seat is movably installed inside the connecting cavity. The piston seat is fixed to one end of the movable rod.

[0013] The beneficial effects of this utility model are:

[0014] 1. This blade-type magnetorheological fluid vibration damper, in use, the support mechanism and the movable rod cooperate to achieve dual vibration damping and buffering of the entire equipment. With the movable column providing support force for the movable seat, the support mechanism can complete the buffering and vibration reduction under small vibrations.

[0015] 2. This blade-type magnetorheological fluid vibration damper, when the support mechanism retracts, the movable seat pushes the movable rod to move in the support tube to complete secondary buffering and vibration damping. During use, the depth of descent of the movable rod can be adjusted by injecting oil into the fixed tube through the oil injection valve, thereby adjusting the stiffness of the vibration damper.

[0016] 3. In this blade-type magnetorheological fluid vibration damper, the protective cover simultaneously seals and protects the oil injection valve and the fixed pipe. The limiting cylinder moves as the fixed pipe descends and contacts the protective cover, thus avoiding wear caused by the contact between the protective cover and the oil injection valve. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a blade-type magnetorheological fluid vibration damper according to the present invention;

[0018] Figure 2This is a schematic diagram of the structure of the bottom of the movable seat of a blade-type magnetorheological fluid vibration damper according to this utility model;

[0019] Figure 3 This is a side cross-sectional view of the movable seat of a blade-type magnetorheological fluid vibration damper according to the present invention.

[0020] Figure 4 This is a top view cross-sectional structural diagram of the movable column of a blade-type magnetorheological fluid vibration damper according to this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the piston seat of a blade-type magnetorheological fluid vibration damper according to the present invention;

[0022] In the diagram: 1. Fixed seat; 2. Fixed lug; 3. Movable seat; 4. Protective cover; 5. Support mechanism; 6. Movable column; 7. Support seat; 8. Support pipe; 9. Movable rod; 10. Pipe; 11. Support lug; 12. Annular groove; 13. Sealing seat; 14. Fixed pipe; 15. Oil injection valve; 16. Cavity; 17. Piston seat; 18. Connecting cavity; 19. Opening; 20. Sealing ring; 21. Limiting cylinder. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] Please see Figures 1 to 5 This utility model provides a technical solution: a blade-type magnetorheological fluid vibration damper, including a fixed base 1, a fixed lug 2 welded on the fixed base 1, a fixed tube 14 fixed on one side of the fixed base 1, a movable base 3 fixed at one end of the fixed tube 14, a support mechanism 5 movably installed between the movable base 3 and the fixed base 1, the support mechanism 5 being a buffer spring, the buffer spring cooperating with the fixed base 1 and the movable base 3 to perform preliminary buffering and vibration reduction, a protective cover 4 movably installed inside the support mechanism 5, one end of the protective cover 4 fixed on the movable base 3, a limiting cylinder 21 fixed on the inner wall of the fixed base 1, the protective cover 4 movably contacting the outer wall 21 of the limiting cylinder, and an oil injection valve 15 fixedly installed on the fixed tube 14, the oil injection valve 15 movably cooperating with the protective cover 4, the protective cover 4 completing the sealing fold of the oil injection valve 15 to prevent dust from entering the oil injection valve 15 and causing damage.

[0025] In this embodiment, the bottom of the movable seat 3 has an annular groove 12, and a movable rod 9 is fixedly installed inside the annular groove 12. A support tube 8 is fixed to one end of the movable rod 9. A cavity 16 is opened inside the fixed tube 14, and a movable column 6 is movably installed inside the cavity 16. A support seat 7 is welded on the movable column 6, and the support tube 8 is fixedly installed on the support seat 7. A pipe 10 is fixed to the bottom of the support tube 8, and one end of the pipe 10 is fixed inside the movable column 6. Under compression, the oil enters the interior of the movable column 6 through the pipe 10, and the pressure conversion is completed by the movement of the oil.

[0026] In this embodiment, a support lug 11 is fixed to one end of the movable column 6, and a sealing seat 13 is movably installed on the movable column 6. The sealing seat 13 is fixed to the bottom of the movable seat 3. A cavity 16 is opened inside the fixed tube 14, and the movable column 6 is movably installed inside the cavity 16. A sealing ring 20 is fixed to one end of the movable column 6, and the sealing ring 20 is movably installed on the inner wall of the cavity 16. An opening 19 is opened inside the movable column 6, and the opening 19 is connected to the pipe 10. A connecting cavity 18 is opened inside the support tube 8, and a piston seat 17 is movably installed inside the connecting cavity 18. The piston seat 17 is fixed to one end of the movable rod 9. The piston seat 17 ensures the seal between the movable column 6 and the fixed tube 14. The sealing ring 20 cooperates with the sealing seat 13 to ensure the sealing treatment between the fixed tube 14 and the movable column 6.

[0027] In use, the device is fixedly installed at the location requiring buffering and vibration reduction via the fixed lug 2 and the supporting lug 11. When the fixed seat 1 and movable column 6 are in use, external force transmits vibration compression downwards through the fixed lug 2. The fixed seat 1 moves downwards and compresses the supporting mechanism 5, causing the supporting mechanism 5 to contract downwards. This compresses small vibrations over a short distance. When the supporting mechanism 5 contracts to its maximum extent, the movable seat 3 moves downwards under the push of the supporting mechanism 5 and the fixed tube 14. The movable seat 3 then compresses the movable rod 9. Under this compression, the piston seat 17 of the movable rod 9 pushes the oil inside the supporting tube 8 downwards into the pipe 10, and through the pipe 10 into the opening 19. The opening 19 finally enters the interior of the fixed tube 14. The increase of oil inside the fixed seat 1 causes the fixed seat 1 to move slowly, completing the secondary buffering and vibration reduction. The movable rod 9 and the support tube 8 are evenly distributed at the bottom of the movable seat 3. The oil is discharged in small amounts multiple times to buffer and reduce vibration. When it is necessary to adjust the lowering height of the fixed seat 1 later, one end of the protective cover 4 is moved downward, and the oil injection valve 15 is exposed to inject oil. As the oil inside the cavity 16 increases, the oil level increases. When the movable seat 3 squeezes the movable rod 9 later, the oil in the connecting cavity 18 decreases, causing the movable seat 3 to move slowly to reduce vibration. The stiffness of the damper can be adjusted to meet the needs of different situations.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A blade-type magnetorheological fluid vibration damper, comprising a fixed base (1), characterized in that: A fixed lug (2) is welded on the fixed seat (1). A fixed tube (14) is fixed on one side of the fixed seat (1). A movable seat (3) is fixed at one end of the fixed tube (14). A support mechanism (5) is movably installed between the movable seat (3) and the fixed seat (1). A protective cover (4) is movably installed inside the support mechanism (5). One end of the protective cover (4) is fixed on the movable seat (3). A limiting cylinder (21) is fixed on the inner wall of the fixed seat (1). The protective cover (4) movably contacts the outer wall of the limiting cylinder (21).

2. The blade-type magnetorheological fluid vibration damper according to claim 1, characterized in that: An oil injection valve (15) is fixedly installed on the fixed pipe (14), and the oil injection valve (15) moves in coordination with the protective cover (4).

3. The blade-type magnetorheological fluid vibration damper according to claim 1, characterized in that: The bottom of the movable seat (3) has an annular groove (12), and a movable rod (9) is fixedly installed inside the annular groove (12). One end of the movable rod (9) is fixed with a support tube (8).

4. The blade-type magnetorheological fluid vibration damper according to claim 3, characterized in that: The fixed tube (14) has a cavity (16) inside, and a movable column (6) is movably installed inside the cavity (16). A support seat (7) is welded on the movable column (6).

5. A blade-type magnetorheological fluid vibration damper according to claim 3, characterized in that: The support tube (8) is fixedly installed on the support base (7), and a pipe (10) is fixed at the bottom of the support tube (8). One end of the pipe (10) is fixed inside the movable column (6).

6. A blade-type magnetorheological fluid vibration damper according to claim 5, characterized in that: One end of the movable column (6) is fixed with a support lug (11), and a sealing seat (13) is movably installed on the movable column (6). The sealing seat (13) is fixed to the bottom of the movable seat (3).

7. A blade-type magnetorheological fluid vibration damper according to claim 4, characterized in that: The movable column (6) is movably installed inside the cavity (16), and a sealing ring (20) is fixed at one end of the movable column (6). The sealing ring (20) is movably installed on the inner wall of the cavity (16).

8. A blade-type magnetorheological fluid vibration damper according to claim 5, characterized in that: The movable column (6) has an opening (19) inside, which is connected to the pipe (10). The support pipe (8) has a connecting cavity (18) inside, and a piston seat (17) is movably installed inside the connecting cavity (18). The piston seat (17) is fixed to one end of the movable rod (9).

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