Anti-precipitation magnetorheological damper with stretching damping force larger than compressing damping force

A magnetorheological damper and anti-sedimentation technology, applied in the direction of shock absorbers, shock absorbers, springs/shock absorbers, etc., can solve the problems of insufficient damping force, affecting vibration damping ability, affecting magnetorheological characteristics, etc. , to achieve the effects of increasing the magnetorheological damping force, high utilization of the magnetic field, and improving the safety of power loss.

CN110778635AActive Publication Date: 2020-02-11XI AN JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2020-02-11

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Abstract

The invention discloses an anti-precipitation magnetorheological damper with stretching damping force larger than compressing damping force. An outer cylinder of a damper cylinder is installed on an inner cylinder in a sleeving manner, a cylinder upper end cover is arranged on the tops of the outer cylinder and the inner cylinder, a cylinder lower end cover is arranged at the bottoms of the outercylinder and the inner cylinder, a piston rod is arranged in the inner cylinder, multiple anti-precipitation structures are distributed on a piston head of the piston rod at equal distances along thecircumferential face, a cylinder lower cavity cover is arranged in the portion, between the piston head and the cylinder lower end cover, of the inner cylinder, and multiple anti-precipitation structures are arranged on the cylinder lower cavity cover; and a damping generator is provided with a damping generator liquid outlet and a damping generator liquid inlet, the damping generator liquid inletcommunicates with the top of the outer cylinder, and the damping generator liquid outlet communicates with the bottom of the outer cylinder. According to the anti-precipitation magnetorheological damper with the stretching damping force larger than the compressing damping force, the structure is simple, the piston stroke is large, the magnetic field utilization rate is high, the magnetorheological damping force is increased, the power loss safety is improved, the stretching damping force larger than the compressing damping force through the anti-precipitation structures, and the anti-precipitation effect is achieved.
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Description

technical field

[0001] The invention belongs to the technical field of magnetorheological dampers, and in particular relates to an anti-precipitation magnetorheological damper whose tensile force is greater than compression damping force. Background technique

[0002] Magnetorheological fluid is a controllable fluid. Because its rheology under the action of a magnetic field is instantaneous and reversible, and its shear yield strength after rheology has a stable corresponding relationship with the magnetic field strength, it is a widely used fluid. , Intelligent materials with excellent performance. The magnetorheological damper is a semi-active damping device, which is made according to the principle that the flow performance of magnetorheological fluid changes under the action of a magnetic field. It has the advantages of fast response speed, wide adjustment range, and large output damping force. At present, it has been widely used in many vibration reduction fields such ...

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Embodiment Construction

[0037] In describing the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", " The orientation or positional relationship indicated by "inner", "outer", "one side", "one end", "one side" etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and It is not to indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, or operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may exp...