Air-bag-compensating split type magneto-rheological fluid seat damping damper
A magnetorheological fluid, split technology, applied in the field of damping and vibration reduction, can solve the problems of magnetic circuit and flow channel restriction, high manufacturing cost, occupation, etc., and achieve the effect of large free stroke and simple manufacturing process.
Inactive Publication Date: 2013-04-24
浙大新剑(上海)智能技术有限公司 +1
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Problems solved by technology
Although this structure is simple, the design of the magnetic circuit and flow channel is restricted by space, and the manufacturing cost is relatively high.
The piston rod air travel compensation is usually carried out in the form of a compensation cylinder. The compensation cylinder can provide a high gas pressure, usually up to 2MPa, and can promptly compensate the movement of the damping rod with a high linear speed, but it also has complex processing and occupies Disadvantages such as large size
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[0015] Below in conjunction with accompanying drawing, the present invention is described in detail as follows:
[0016] figure 1 It is a schematic cross-sectional view of the airbag compensation split magnetorheological fluid seat damper of the present invention. As shown in the figure, the split magnetorheological fluid seat damper includes a hydraulic cylinder 1, a compensation airbag 2, and a lower installation hole 3 , connecting pipe 4, external excitation unit 5, upper mounting hole 6, piston rod 7, piston 8 and other parts. The hydraulic cylinder 1 and the external excitation unit 5 are placed separately in a split design, and the connecting pipe 4 is made of a pneumatic tube, and the external excitation unit 5 and the hydraulic cylinder 1 are connected together to form a working medium circuit. The compensation air bag 2 is fixed on the bottom end inside the cylinder body of the hydraulic cylinder 1 as a compensation for the lost motion of the piston rod. The piston...
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The invention provides an air-bag-compensating split type magneto-rheological fluid seat damping damper which is simple to process and capable of achieving piston rod idle stroke compensation under low load at a lower speed. The air-bag-compensating split type magneto-rheological fluid seat damping damper is of a split type structure, a damping cylinder block and an excitation unit are disposed separately, and accordingly the excitation unit can be disposed and designed freely, and even a plurality of excitation units can be serially connected to obtain higher damping force. The air-bag-compensating split type magneto-rheological fluid seat damping damper comprises a hydraulic cylinder 1, a compensating air bag 2, a lower mounting hole 3, a connecting pipe 4, the external excitation unit 5, an upper mounting hole 6, a piston rod 7, a piston 8 and the like.
Description
technical field [0001] The invention relates to an airbag compensation split-type magnetorheological fluid seat damping shock absorber, in particular to a magnetorheological damping cylinder and an excitation unit split structure, using magnetorheological fluid as a working medium, and using pressure-resistant and oil-resistant A magnetic rheological fluid seat damping shock absorber used as compensation by an air bag belongs to the technical field of damping and vibration reduction. Background technique [0002] Magneto-rheological fluid is a solid-liquid mixed stable suspension system formed by uniformly dispersing ultra-fine particles of ferromagnetic solids into the carrier liquid. It has both the fluidity of liquid and the strong magnetism of solid ferromagnetic substances. Since the rheology of magnetorheological fluid under the action of a magnetic field is instantaneous and reversible, and its shear yield strength after rheology has a stable corresponding relationsh...
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IPC IPC(8): F16F9/53A47C7/00
Inventor 黄毓强单晨严作海胡水坤房金鹏闫惠波翁建杰
Owner 浙大新剑(上海)智能技术有限公司