Magnetorheological fluid damping regulator

Abstract

The utility model relates to the technical field of magnetorheological fluid dampers, in particular to a magnetorheological fluid damping regulator which comprises a damper body, the damper body comprises a cylinder body structure and a rod body structure, a round hole is formed in the cylinder body structure, the rod body structure is arranged in the round hole, a regulating structure is arranged outside the rod body structure, and the regulating structure comprises a cambered surface long plate. An arc-shaped through hole is formed in the upper side of the cylinder body structure, a connecting plate is arranged on the top of the arc-surface long plate, a connecting hole is formed in the connecting plate, a fastening structure is arranged in the connecting hole and comprises a limiting ring arranged on the inner side of the connecting hole in a limiting mode, and a semicircular base is fixed to the upper side of the limiting ring; threaded holes are formed in the same ends of the semicircular base and the movable semicircular clamping plate, fastening bolts are rotationally connected into the threaded holes in a threaded mode, and an adjusting handle is hinged to one end of each fastening bolt. The magnetorheological fluid damper solves the problems that an existing magnetorheological fluid damper is single in structure regulation and control mode, the maximum viscosity value of original magnetorheological fluid cannot be broken through, and the regulation range is limited.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetorheological fluid dampers, in particular to a magnetorheological fluid damping regulator. Background Art

[0002] A magnetorheological fluid damper is usually composed of a hydraulic cylinder, magnetorheological fluid and an electromagnetic control system. The hydraulic cylinder is used to contain the magnetorheological fluid, while the electromagnetic control system is used to control the current, thereby changing the rheological properties of the magnetorheological fluid and thus adjusting the damping effect.

[0003] The damping value in the existing magnetorheological fluid damper is generally adjusted only by changing the current size and controlling the strength of the magnetic field, thereby controlling the viscosity of the magnetorheological fluid. However, this control method is relatively simple, and the controllable viscosity of the magnetorheological fluid is also within a specific range. Therefore, it is impossible to further control its viscosity when the maximum viscosity is reached, and the adjustment range is limited. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing magnetorheological fluid damper structure control method is relatively single, cannot break through the original maximum viscosity value of the magnetorheological fluid, and has a limited adjustment range.

[0005] To solve the above problems, the technical solution adopted by the utility model is a magnetorheological fluid damping regulator, including a damper body, the damper body including a cylinder structure and a rod structure, a circular hole is opened on the upper side of the cylinder structure, a rod structure is inserted in the circular hole, an adjustment structure is provided on the outer side of the rod structure, the adjustment structure includes a plurality of arc-shaped long plates, an arc-shaped through hole is opened on the upper side of the cylinder structure at the arc-shaped long plate, a connecting plate is fixed on the top of the plurality of arc-shaped long plates, a connecting hole is opened on the upper side of the connecting plate, a fastening structure is provided in the connecting hole, the fastening structure includes a limiting ring limitedly arranged on the inner side of the connecting hole, the limiting ring is sleeved on the outer side of the rod structure, a semicircular base is fixed on the upper side of the limiting ring, a movable semicircular splint is hingedly connected to one end of the semicircular base, a threaded hole is opened on the same end of the semicircular base and the movable semicircular splint, a fastening bolt is threadedly rotatably connected to the thread in the threaded hole, and an adjustment handle is hingedly connected to one end of the fastening bolt.

[0006] As a further solution of the utility model: a hollow area is opened inside the side wall of the cylinder structure, a coil is spirally wound in the hollow area, the coil is electrically connected to an external electronic control device, when the coil is energized, an electromagnetic field is generated in the cylinder structure, affecting the viscosity of the magnetorheological fluid.

[0007] As a further solution of the utility model: the length of the long curved plate is shorter than the length of the rod structure, thereby reducing the space occupied by the long curved plate.

[0008] As a further solution of the utility model: an arc-shaped sealing gasket is provided between the arc-shaped long plate and the arc-shaped through hole, and a sealing ring is provided between the rod body and the circular hole to play a sealing role.

[0009] As a further solution of the utility model: the bottom end of the rod body structure is located on the inner side of the cylinder structure and a piston head is fixed thereto, a floating piston is provided between the piston head and the inner side of the cylinder structure, and the cylinder structure is filled with magnetorheological fluid. When a magnetic field is generated, the magnetorheological fluid will change its viscosity, thereby changing the resistance value of the piston head and the floating piston.

[0010] As a further solution of the utility model: a hinge structure is fixed to the end of the cylinder structure farthest from the rod structure, so as to facilitate installation during use.

[0011] Compared with the prior art, the utility model has the following advantages: the utility model adjusts the viscosity of the magnetorheological fluid by adding a number of curved long plates to change the original structure, because the damping effect of the magnetorheological fluid damper is also related to the area of ​​contact with the magnetorheological fluid, and the damping effect of the magnetorheological fluid damper is proportional to the surface area of ​​contact between the magnetorheological fluid and the force-bearing object, that is, the larger the contact area, the better the damping effect, so by adding curved long plates, the surface area of ​​contact of the magnetorheological fluid is controlled, thereby further realizing the adjustment and control of the damping value. 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 damping regulator.

[0014] Figure 2 The utility model is a cross-sectional view of the overall structure of a magnetorheological fluid damping regulator.

[0015] Figure 3 The utility model is a schematic diagram of a fastening structure in a magnetorheological fluid damping regulator.

[0016] Figure 4 This is an enlarged view of the structure of part A in a magnetorheological fluid damping regulator of the utility model.

[0017] Figure 5 This is an enlarged view of the structure of part B in a magnetorheological fluid damping regulator of the utility model.

[0018] In the attached figure:

[0019] 1. Cylinder structure; 2. Rod structure; 3. Long arc plate; 4. Connecting plate; 5. Limiting ring; 6. Semicircular base; 7. Movable semicircular clamp; 8. Fastening bolt; 9. Adjusting handle; 10. Coil; 11. Arc-shaped sealing gasket; 12. Sealing ring; 13. Floating piston; 14. Hinge structure; 1.1. Round hole; 1.2. Arc-shaped through hole; 1.3. Hollow area; 2.1. Piston head; 4.1. Connecting hole. DETAILED DESCRIPTION

[0020] 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.

[0021] The utility model provides a technical solution to solve the existing problems raised in the background technology.

[0022] Combined with Figure 1-2 4, it can be known that the structure includes a damper body, and the damper body includes a cylinder structure 1 and a rod structure 2. A circular hole 1.1 is opened on the upper side of the cylinder structure 1, and the rod structure 2 is inserted in the circular hole 1.1. An adjustment structure is arranged on the outer side of the rod structure 2, and the adjustment structure includes a plurality of arc-shaped long plates 3. The length of the arc-shaped long plates 3 is less than the length of the rod structure 2, so as to reduce the space occupied by the arc-shaped long plates 3. An arc-shaped through hole 1.2 is opened on the upper side of the cylinder structure 1 at the arc-shaped long plates 3. A hollow area 1.3 is opened inside the side wall of the cylinder structure 1, and a coil 10 is spirally wound in the hollow area 1.3. The coil 10 is electrically connected to the external electric control device. When the coil 10 is energized, the cylinder An electromagnetic field is generated in the structure 1, which affects the viscosity of the magnetorheological fluid. An arc-shaped sealing gasket 11 is provided between the arc-shaped long plate 3 and the arc-shaped through hole 1.2, and a sealing ring 12 is provided between the rod body and the circular hole 1.1 to seal. The bottom end of the rod body structure 2 is located on the inner side of the cylinder structure 1 and a piston head 2.1 is fixed thereto. A floating piston 13 is provided between the piston head 2.1 and the inner side of the cylinder structure 1. The cylinder structure 1 is filled with magnetorheological fluid. When a magnetic field is generated, the magnetorheological fluid will change its viscosity, thereby changing the resistance value of the piston head 2.1 and the floating piston 13. A hinged structure 14 is fixed to the end farthest from the cylinder structure 1 and the rod body structure 2 to facilitate installation during use.

[0023] Combined with Figure 3 , 5It can be seen that a connecting plate 4 is fixed to the top of several curved long plates 3, a connecting hole 4.1 is opened on the upper side of the connecting plate 4, a fastening structure is provided in the connecting hole 4.1, the fastening structure includes a limiting ring 5 limitedly set on the inner side of the connecting hole 4.1, the limiting ring 5 is sleeved on the outer side of the rod body structure 2, a semicircular base 6 is fixed on the upper side of the limiting ring 5, a movable semicircular splint 7 is hinged at one end of the semicircular base 6, a threaded hole is opened at the same end of the semicircular base 6 and the movable semicircular splint 7, a fastening bolt 8 is threadedly connected to the thread in the threaded hole, rotating the fastening bolt 8 will clamp the rod body structure 2 between the semicircular base 6 and the movable semicircular splint 7, and an adjusting handle 9 is hinged at one end of the fastening bolt 8.

[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 adjusting the damping value of the damper body, the current intensity passing through the coil 10 can be controlled by adjusting the external electric control device, so as to change the magnetic field inside the cylinder structure 1, and then change the viscosity of the magnetorheological fluid inside the cylinder structure 1. If the maximum viscosity of the magnetorheological fluid has been reached, but the damping value still needs to be increased, the coil 10 can be temporarily de-energized to keep the magnetorheological fluid in a fluid state, and then the adjustment handle 9 is turned to rotate the fastening bolt 8 to loosen the semicircular base 6 and the movable semicircular clamp 7 from the rod structure 2, and then the connecting plate 4 is pushed downward to extend a plurality of arc-surface long plates 3 into the cylinder structure 1, and then the fastening bolt 8 is rotated to clamp the semicircular base 6 and the movable semicircular clamp 7 to clamp the rod structure 2. At this time, the contact area between the force-bearing object and the magnetorheological fluid is increased, so after the coil 10 is energized, when the viscosity of the magnetorheological fluid cannot be changed, the damping value can be further increased.

[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 damping regulator, comprising a damper body, the damper body comprising a cylinder structure (1) and a rod structure (2), characterized in that: The cylinder structure (1) has a circular hole (1.1) on the upper side, a rod structure (2) is inserted into the circular hole (1.1), an adjustment structure is provided on the outer side of the rod structure (2), the adjustment structure comprises a plurality of arc-shaped long plates (3), an arc-shaped through hole (1.2) is provided on the upper side of the cylinder structure (1) at the arc-shaped long plates (3), a connecting plate (4) is fixed to the top of the plurality of arc-shaped long plates (3), a connecting hole (4.1) is provided on the upper side of the connecting plate (4), and a connecting hole (4.1) is provided in the connecting hole (4.1). The fastening structure comprises a limit ring (5) which is limitedly arranged on the inner side of the connecting hole (4.1), the limit ring (5) is sleeved on the outer side of the rod structure (2), a semicircular base (6) is fixed on the upper side of the limit ring (5), a movable semicircular clamping plate (7) is hingedly connected at one end of the semicircular base (6), a threaded hole is provided at the same end of the semicircular base (6) and the movable semicircular clamping plate (7), a fastening bolt (8) is threadedly rotatably connected in the threaded hole, and an adjustment handle (9) is hingedly connected at one end of the fastening bolt (8).

2. A magnetorheological fluid damping regulator according to claim 1, characterized in that: A hollow area (1.3) is provided inside the side wall of the cylinder structure (1), a coil (10) is spirally wound in the hollow area (1.3), and the coil (10) is electrically connected to an external electric control device.

3. A magnetorheological fluid damping regulator according to claim 1, characterized in that: The length of the arc-surface long plate (3) is shorter than the length of the rod structure (2).

4. The magnetorheological fluid damping regulator according to claim 1, characterized in that: An arc-shaped sealing gasket (11) is provided as a limit clamp between the arc-shaped long plate (3) and the arc-shaped through hole (1.2), and a sealing ring (12) is provided between the rod structure (2) and the circular hole (1.1).

5. The magnetorheological fluid damping regulator according to claim 1, characterized in that: The bottom end of the rod structure (2) is located inside the cylinder structure (1) and a piston head (2.1) is fixed thereto; a floating piston (13) is provided between the piston head (2.1) and the inside of the cylinder structure (1); and the cylinder structure (1) is filled with magnetorheological fluid.

6. The magnetorheological fluid damping regulator according to claim 1, characterized in that: The ends of the cylinder structure (1) and the rod structure (2) that are farthest apart are both fixed with hinge structures (14).

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