Magnetorheological fluid damper for vibration reduction of train compartment

Abstract

The utility model relates to the technical field of magnetorheological fluid dampers, in particular to a magnetorheological fluid damper for vibration reduction of train carriages, which comprises a first connecting plate and a second connecting plate, bosses are arranged on one side of the first connecting plate and one side of the second connecting plate, grooves are arranged on one sides of the bosses, fixing rods are arranged on the side faces of the grooves, and connecting bases are arranged on the outer sides of the fixing rods. A damper body is arranged between the connecting bases and comprises a cylinder body structure and a damping rod structure, the cylinder body structure comprises a first rotating plate, a cylinder barrel is arranged on one side of the first rotating plate, a corrugated pipe is arranged at one end of the cylinder barrel, an annular groove is formed in one side in the cylinder barrel, a hollow area is formed in the side wall of the cylinder barrel, and a coil is arranged in the hollow area; one end of the slender rod body is provided with a sliding plate, one side of the mixing plate is provided with a circular ring insertion plate, and the other end of the slender rod body is provided with a thick rod body. The hydraulic damper structure solves the problems that an existing hydraulic damper structure for anti-snakelike vibration reduction of a train compartment is large in occupied space and poor in space utilization rate.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetorheological fluid dampers, in particular to a magnetorheological fluid damper for vibration reduction of train carriages. Background Art

[0002] During the operation of the train, there will be lateral swing or shaking, which is generally called serpentine motion. Therefore, in order to reduce the vibration of the carriage caused by serpentine motion, anti-snaking shock absorbers are generally connected between the train frame and the carriage;

[0003] Existing anti-snaking shock absorbers generally use hydraulic dampers to achieve the corresponding vibration reduction effect. However, since the overall structure of the hydraulic damper is relatively long and the response time of the hydraulic damper during buffering is relatively long, a single carriage requires multiple hydraulic dampers for vibration reduction in order to improve the vibration reduction effect. Therefore, the hydraulic damper occupies a larger space in the overall train structure, resulting in unnecessary space waste. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing hydraulic damper structure for anti-snaking vibration reduction of train carriages occupies a large space and has a poor space utilization rate.

[0005] To solve the above problems, the technical solution adopted by the utility model is a magnetorheological fluid damper for train car vibration reduction, including connecting plate one and connecting plate two, one side of connecting plate one and connecting plate two are fixed with a boss, one side of the boss is provided with a groove, a fixing rod is fixed with the side of the groove, the outer side of the fixing rod is located in the groove and is rotatably connected with a connecting base, a damper body is provided between the two connecting bases, the damper body includes a cylinder structure and a damping rod structure, the cylinder structure includes a rotating plate one, one side of the rotating plate is fixed with a cylinder, one end of the cylinder is fixed with a bellows, one side of the cylinder is provided with a plurality of annular grooves, a hollow area is provided inside the side wall of the cylinder, a coil is provided in the hollow area, the damping rod structure includes a thin rod body located in the cylinder, one end of the thin rod body is located in the cylinder and a sliding plate is fixed thereto, one side of the sliding plate is located in the annular groove and a circular plug plate is fixed thereto, the other end of the thin rod body is fixed with a thick rod body, and one side of the thick rod body is fixed with a rotating plate two.

[0006] As a further solution of the utility model: limiting protrusions are fixed on the side surfaces of rotating plate 1 and rotating plate 2, a limiting circular groove is opened on one side of the connecting base, a limiting groove is opened on the inner side of the limiting circular groove at the limiting protrusion, rotating plate 1 and rotating plate 2 are respectively located in the two limiting circular grooves, and the spatial volume of the limiting grooves is larger than the area of ​​the limiting protrusions, so it can ensure that rotating plate 1 and rotating plate 2 can rotate slightly in the two limiting circular grooves.

[0007] As a further solution of the utility model: a thin through hole is opened on one side of the cylinder barrel at the thin rod body, and a sealing gasket is sleeved on the outside of the thin rod body at the thin through hole to play a sealing role.

[0008] As a further solution of the utility model: a thick through hole is opened on one side of the corrugated tube at the thick rod body, and a sealing limit washer is sleeved on the edge of the thick through hole located on the outside of the thick rod body to play a sealing role.

[0009] As a further solution of the utility model: the thickness of the connecting base is smaller than the depth of the groove, so as to ensure that the connecting base can rotate normally along the fixing rod.

[0010] As a further solution of the utility model: one side of connecting plate one is fixed to the external train frame, one side of connecting plate two is fixed to the lower side of the external train compartment, the coil is electrically connected to the external electric control device, and the cylinder structure is filled with magnetorheological fluid.

[0011] Compared with the prior art, the utility model has the following advantages: the utility model replaces the hydraulic damper structure with a magnetorheological damper, which has a higher impact response speed, and adds a number of annular grooves and annular plug plate structures inside the damper body, and increases the contact area between the magnetorheological fluid and the cylinder structure and the damping rod structure, so as to improve the damping effect, thereby improving the response speed and the vibration reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 The utility model is a stereoscopic diagram of the overall structure of a magnetorheological fluid damper for vibration reduction in a train carriage.

[0014] Figure 2 The utility model is a cross-sectional view of the overall structure of a magnetorheological fluid damper for vibration reduction in a train carriage.

[0015] Figure 3 The utility model is a cross-sectional view of a cylinder structure in a magnetorheological fluid damper for vibration reduction in a train carriage.

[0016] Figure 4 The utility model is a cross-sectional view of a damping rod structure in a magnetorheological fluid damper for vibration reduction in a train carriage.

[0017] In the attached figure:

[0018] 1. Connecting plate 1; 2. Connecting plate 2; 3. Boss; 4. Fixing rod; 5. Connecting base; 6. Cylinder structure; 7. Damping rod structure; 8. Sealing gasket; 9. Sealing limiting gasket; 3.1. Groove; 5.1. Limiting circular groove; 6.1. Rotating plate 1; 6.2. Cylinder barrel; 6.3. Bellows; 6.4. Circular ring groove; 6.5. Hollow area; 6.6. Coil; 6.7. Thin through hole; 6.8. Thick through hole; 7.1. Thin rod body; 7.2. Sliding plate; 7.3. Circular ring plug plate; 7.4. Thick rod body; 7.5. Rotating plate 2. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The utility model provides a technical solution to solve the existing problems raised in the background technology.

[0021] Combined with Figure 1-2 , it can be known that the structure includes a connecting plate 1 and a connecting plate 2, one side of the connecting plate 1 and the connecting plate 2 are both fixed with a boss 3, one side of the boss 3 is provided with a groove 3.1, and a fixing rod 4 is fixed on the side of the groove 3.1, which can facilitate the connection base 5 to rotate, the outer side of the fixing rod 4 is located in the groove 3.1 and is rotatably connected to the connecting base 5, and a damper body is provided between the two connecting bases 5, and a limited protrusion is fixed on the side of the rotating plate 1 6.1 and the rotating plate 2 7.5, and a limited circular groove 5.1 is provided on one side of the connecting base 5, and a limited groove is provided on the inner side of the limited circular groove 5.1 at the limiting protrusion, and the rotating plate 1 6.1 and the rotating plate 2 7.5 are respectively located in the two limiting circular grooves 5.1, and the spatial volume of the limiting groove is larger than the area of ​​the limiting protrusion, so it can ensure that the rotating plate 1 6.1 and the rotating plate The second 7.5 rotates slightly in the two limiting circular grooves 5.1. A thin through hole 6.7 is opened on one side of the cylinder 6.2 at the thin rod body 7.1. A sealing gasket 8 is sleeved on the thin through hole 6.7 on the outside of the thin rod body 7.1, which can play a sealing role; a coarse through hole 6.8 is opened on one side of the bellows 6.3 at the thick rod body 7.4. The edge of the coarse through hole 6.8 is sleeved on the outside of the thick rod body 7.4 with a sealing limiting gasket 9, which can play a sealing role. The thickness of the connecting base 5 is less than the depth of the groove 3.1, ensuring that the connecting base 5 can rotate normally along the fixing rod 4; one side of the connecting plate 1 is fixed to the external train frame, one side of the connecting plate 2 is fixed to the lower side of the external train compartment, the coil 6.6 is electrically connected to the external electric control device, and the cylinder structure 6 is filled with magnetorheological fluid;

[0022] Combined with Figure 3 It can be seen that the cylinder structure 6 includes a rotating plate 6.1, a cylinder 6.2 is fixed on one side of the rotating plate 6.1, a bellows 6.3 is fixed on one end of the cylinder 6.2, which can play a certain buffering effect, a plurality of annular grooves 6.4 are opened on one side of the cylinder 6.2, and magnetorheological fluid is filled between the annular grooves 6.4 and the annular plug plate 7.3, a hollow area 6.5 is opened inside the side wall of the cylinder 6.2, and a coil 6.6 is arranged in the hollow area 6.5. When the coil 6.6 is energized, a magnetic field is generated in the cylinder 6.2, thereby causing the magnetorheological fluid to change.

[0023] Combined with Figure 4 It can be seen that the damping rod structure 7 includes a thin rod body 7.1 located in the cylinder 6.2, one end of the thin rod body 7.1 is located in the cylinder 6.2 and fixed with a sliding plate 7.2, one side of the sliding plate 7.2 is located in the annular groove 6.4 and fixed with an annular insert plate 7.3, the other end of the thin rod body 7.1 is fixed with a thick rod body 7.4, and one side of the thick rod body 7.4 is fixed with a rotating plate 2 7.5.

[0024] The working principle of this application is: The principle of the magnetorheological fluid damper is: The magnetorheological fluid damper uses the characteristics of magnetorheological fluid to control the damping effect. When a magnetic field is applied, the viscosity of the magnetorheological fluid increases, thereby increasing the damping effect; when the magnetic field disappears, the viscosity of the liquid returns to its original state, reducing the damping. This characteristic can achieve precise damping control by adjusting the strength and direction of the magnetic field;

[0025] When the train carriage is subjected to vibration reduction, if the carriage is subjected to vibration, the damper body will be squeezed or stretched. The cylinder 6.2 is filled with magnetorheological fluid. When the coil 6.6 is energized, the magnetorheological fluid in the cylinder 6.2 will produce different viscosities by adjusting the magnitude of the electric power. The contact surface area between the magnetorheological fluid and the cylinder structure 6 and the damping rod structure 7 is increased by a plurality of annular plates 7.3 and a plurality of annular grooves 6.4, thereby increasing the response speed of the damper, thereby reducing the length of the damper to a certain extent and reducing the space volume occupied by the damper.

[0026] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A magnetorheological fluid damper for vibration reduction in a train carriage, comprising a first connecting plate (1) and a second connecting plate (2), characterized in that: A boss (3) is fixed on one side of the connecting plate 1 (1) and the connecting plate 2 (2), a groove (3.1) is provided on one side of the boss (3), a fixing rod (4) is fixed on the side of the groove (3.1), a connecting base (5) is rotatably connected to the outer side of the fixing rod (4) in the groove (3.1), a damper body is provided between the two connecting bases (5), the damper body comprises a cylinder structure (6) and a damping rod structure (7), the cylinder structure (6) comprises a rotating plate 1 (6.1), a cylinder barrel (6.2) is fixed on one side of the rotating plate 1 (6.1), a bellows (6.3) is fixed on one end of the cylinder barrel (6.2), and the cylinder barrel (6.2) is provided with a bellows (6.3). A plurality of annular grooves (6.4) are provided on one side of the cylinder (6.2); a hollow area (6.5) is provided inside the side wall of the cylinder (6.2); a coil (6.6) is provided in the hollow area (6.5); a damping rod structure (7) comprises a thin rod body (7.1) located in the cylinder (6.2); one end of the thin rod body (7.1) is located in the cylinder (6.2) and a sliding plate (7.2) is fixed thereto; one side of the sliding plate (7.2) is located in the annular groove (6.4) and a circular plug plate (7.3) is fixed thereto; a thick rod body (7.4) is fixed to the other end of the thin rod body (7.1); and a rotating plate (7.5) is fixed to one side of the thick rod body (7.4).

2. A magnetorheological fluid damper for train carriage vibration reduction according to claim 1, characterized in that: The side surfaces of the rotating plate 1 (6.1) and the rotating plate 2 (7.5) are both fixed with limiting protrusions, a limiting circular groove (5.1) is provided on one side of the connecting base (5), a limiting groove is provided on the inner side of the limiting circular groove (5.1) at the limiting protrusion, and the rotating plate 1 (6.1) and the rotating plate 2 (7.5) are respectively located in the two limiting circular grooves (5.1).

3. The magnetorheological fluid damper for train carriage vibration reduction according to claim 1, characterized in that: A thin through hole (6.7) is provided on one side of the cylinder barrel (6.2) at the thin rod body (7.1), and a sealing gasket (8) is sleeved on the outside of the thin rod body (7.1) at the thin through hole (6.7).

4. The magnetorheological fluid damper for train carriage vibration reduction according to claim 1, characterized in that: A coarse through hole (6.8) is provided on one side of the bellows (6.3) at the coarse rod body (7.4), and a sealing limit washer (9) is sleeved on the edge of the coarse through hole (6.8) at the outside of the coarse rod body (7.4).

5. The magnetorheological fluid damper for train carriage vibration reduction according to claim 1, characterized in that: The thickness of the connecting base (5) is smaller than the depth of the groove (3.1).

6. The magnetorheological fluid damper for train carriage vibration reduction according to claim 1, characterized in that: One side of the connecting plate 1 (1) is fixed to the external train frame, one side of the connecting plate 2 (2) is fixed to the lower side of the external train compartment, the coil (6.6) is electrically connected to the external electric control device, and the cylinder structure (6) is filled with magnetorheological fluid.

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