Active-type magnetorheological fluid hydrostatic bearing

A magneto-rheological fluid and hydrostatic bearing technology, which is applied to bearings, shafts, bearings, mechanical equipment, etc., can solve the problems of bearing load capacity reduction, bearing chamber pressure reduction, viscosity reduction, etc., to achieve static stiffness improvement, fluid The effect of large resistance change and viscosity increase

Active Publication Date: 2018-10-02
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The increase in oil temperature will gradually reduce its viscosity, which will lead to a decrease in the pressure of the bearing cavity and reduce the load capacity of the bearing.

Method used

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  • Active-type magnetorheological fluid hydrostatic bearing
  • Active-type magnetorheological fluid hydrostatic bearing
  • Active-type magnetorheological fluid hydrostatic bearing

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0022] An embodiment of an active magnetorheological hydrostatic bearing of the present invention: as figure 1 , 2 As shown, it includes a stepped shaft 4, a first shaft end retaining ring 3, a shaft sleeve 1, a second shaft end retaining ring 11, a permanent magnet 15, four enameled coils 21, a first skeleton seal 19, a second skeleton seal 8, The first axial nut 20 and the second axial nut 23 .

[0023] The stepped shaft 4 is processed with five journals, which are the first shaft section 18, the second shaft section 17, the third shaft section 13, the fourth shaft section 10 and the fifth shaft section 9 from left to right; The diameters of the shaft section 18 and the fifth shaft section 9 are both 40mm and 50mm in length; the diameters of the second shaft section 17 and the fourth shaft section 10 are both 42mm and 5mm in length; the diam...

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PUM

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Abstract

The invention discloses an active-type magnetorheological fluid hydrostatic bearing. The active-type magnetorheological fluid hydrostatic bearing comprises a stepped shaft, a first shaft end check ring, a shaft sleeve, a second shaft end check ring, a permanent magnet, four enameled coils, a first skeleton seal, a second skeleton seal, a first axial nut and a second axial nut. Five journals are machined on the stepped shaft; the shaft sleeve is a rotating body, four radial oil inlet holes are evenly machined in the axial center of the shaft sleeve along the circumference of the rotating body,and an inwards-protruded hydrostatic supporting cavity is formed in each radial oil inlet hole in the inner circumference of the rotating body; and the oil sealing edge on the periphery of each hydrostatic supporting cavity is provided with the corresponding enameled coil in a glued mode. Magnetorheological fluid is adopted as a lubricating medium, when the magnetorheological fluid flows through amagnetic field generated between the permanent magnet and an electromagnet, flowing resistance is increased, the supporting pressure of the supporting cavities is forced to be increased, thus the bearing capacity of the bearing is effectively improved, and the active-type magnetorheological fluid hydrostatic bearing has the characteristics of high bearing capacity and high stiffness accordingly.

Description

[0001] Field [0002] The invention relates to the design field of sliding bearings, in particular to an active magneto-rheological hydrostatic bearing. Background technique [0003] Hydrostatic bearings will continue to generate heat during operation, causing the temperature of the bearing to rise continuously. The increase in oil temperature will gradually reduce its viscosity, which will lead to a decrease in the pressure of the bearing cavity and reduce the load capacity of the bearing. Contents of the invention [0004] According to the above-mentioned problems in the prior art, the present invention provides an active magneto-rheological hydrostatic bearing. The present invention uses magnetorheological fluid as the lubricating medium. When the magnetorheological fluid flows through the magnetic field generated between the permanent magnet and the electromagnet, the flow resistance increases, which forces the bearing pressure of the bearing cavity to increase, effecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C32/06
CPCF16C32/0637
Inventor 赵建华张伟王进吴晓晨张斌陈涛高殿荣
Owner YANSHAN UNIV
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