Magneto-rheological damper with double rods and multiple built-in electromagnets
A magneto-rheological damper and electromagnet technology, applied in the direction of vibration suppression adjustment, non-rotational vibration suppression, etc., can solve the problem of small adjustment range of damping force
Active Publication Date: 2015-12-02
STATE GRID CORP OF CHINA +1
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Problems solved by technology
[0002] The magneto-rheological damper is an intelligent damping device. The existing piston-type magneto-rheological damper mostly adopts the structure of a piston and a working cylinder. This type of piston-type magnetorheological damper is obtained by changing the excitation coil on the piston. In the current, the electromagnetic field strength in the annular gap between the outer diameter of the piston and the inner diameter of the working cylinder (ie: working gap) changes to adjust the viscosity of the magnetorheological fluid to adjust the damping force. Because of this magnetic The rheological damper has only one working gap, so the adjustment range of its damping force is small
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[0010] see figure 1 and figure 2 , a magneto-rheological damper with double rods and multiple built-in electromagnets, which includes a working cylinder 5, a columnar electromagnet 8, a damping tube 6, and a piston rod 14, wherein the columnar electromagnet 8 is on the outside of a cylindrical magnetic conductive material A plurality of coaxial annular grooves 1 with the same width are processed on the circumference, the cross section of the annular groove 1 is rectangular, and the distance between adjacent annular grooves 1 is equal to the width of the annular groove 1; An excitation coil 2 is wound in the annular groove 1, and the adjacent annular grooves 1 are connected through holes 4, and a protective layer 3 is installed on each excitation coil 2, and the protective layer 3 is flush with the outer peripheral wall of the columnar electromagnet 8. flat; the working cylinder 5 is cylindrical, and the two ends of the working cylinder 5 are fixed with an end cover 10 and an...
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The invention discloses a double-outlet-rod multi-built-in-electromagnet magneto-rheological damper. The double-outlet-rod multi-built-in-electromagnet magneto-rheological damper comprises a working cylinder, cylindrical electromagnets, damper tubes and a piston rod. According to the cylindrical electromagnets, a plurality of coaxial annular grooves which are identical in width are formed in the outer circumferences of cylindrical magnetic materials, the cross sections of the annular grooves are rectangular, and the distance between the adjacent annular grooves is equal to the width of the annular grooves. Excitation coils are arranged inside the annular grooves in a wound mode. The working cylinder is cylindrical, the cylindrical electromagnets are evenly distributed in the working cylinder annularly, the inner diameter of the damper tubes is larger than the outer diameter of the cylindrical electromagnets, magneto-rheological fluid flow gaps are reserved between the inner diameter parts of the damper tubes and the outer diameter parts of the cylindrical electromagnets, the outer diameter parts of the cylindrical electromagnets are sleeved with the damper tubes, the damper tubes are fixed to the middle of the piston rod through supports, the two ends of the piston rod stretch out of the working cylinder through a sealing device and a lubricating bearing at the two ends of the working cylinder respectively, and the inner portion of the working cylinder and the gaps between the inner diameter parts of the damper tubes and the outer diameter parts of the cylindrical electromagnets are both filled with magneto-rheological fluid.
Description
technical field [0001] The invention relates to a magneto-rheological damper, in particular to a magneto-rheological damper with double output rods and multiple built-in electromagnets. Background technique [0002] The magneto-rheological damper is an intelligent damping device. The existing piston-type magneto-rheological damper mostly adopts the structure of a piston and a working cylinder. This type of piston-type magnetorheological damper is obtained by changing the excitation coil on the piston. In the current, the electromagnetic field strength in the annular gap between the outer diameter of the piston and the inner diameter of the working cylinder (ie: working gap) changes to adjust the viscosity of the magnetorheological fluid to adjust the damping force. Because of this magnetic The rheological damper has only one working gap, so the adjustment range of its damping force is small. Contents of the invention [0003] In order to overcome the disadvantages of the ...
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IPC IPC(8): F16F9/53
Inventor 谭和平谢宁刘强谭晓婧
Owner STATE GRID CORP OF CHINA