Magnetic fluid sliding bearing

A sliding bearing, magnetic fluid technology, applied in the direction of bearings, bearing components, shafts and bearings, etc., can solve problems such as bearing damage and shortening bearing life

Inactive Publication Date: 2018-09-07
SHANGHAI INST OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a magnetic fluid sliding bearing to solve the problem that a certain part of the bearing in the prior art is damaged due to long-term overloading, thereby shortening the life of the entire bearing; sealing problem

Method used

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  • Magnetic fluid sliding bearing
  • Magnetic fluid sliding bearing

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Embodiment Construction

[0022] refer to figure 1 , the present invention provides a magnetic fluid sliding bearing, comprising a bearing end cover 2 and a sealed housing, the sealed housing contains a magneto-rheological fluid guide hole 9, a coil cylinder, a coil skeleton 8, a wire hole 7, and a FB-shaped lip Type sealing ring 3, sealing ring gasket 4, magnetic shaft 11, short magnetic sleeve 5, excitation coil, long magnetic cylinder 10, standard bolts, etc.

[0023] Coil cylinder, which is coaxial with the magnetic conduction shaft 11, and adjacent to the magnetic conduction shaft 11; coil bobbin 8, which is coaxial with the magnetic conduction shaft 11, and the outer ring of the coil bobbin 8 is fixed on Inside the inner wall of the coil cylinder; the coil frame 8 is wound with an excitation coil, so that the excitation coil is arranged around the magnetic conduction shaft 11 once.

[0024] Short magnetically conductive sleeve 5 and long magnetically conductive cylinder 10, the short magneticall...

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PUM

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Abstract

The invention discloses a magnetic fluid sliding bearing, and belongs to the field of bearings. The magnetic fluid sliding bearing comprises a magnetic conductive shaft and a sealing casing coaxiallysleeving the magnetic conductive shaft, wherein a coil cylinder barrel, a coil framework, a short magnetic conductive sleeve, a long magnetic conductive sleeve and a magnetorheological fluid diversionhole are also arranged and formed in the sealing casing; the coil cylinder barrel is coaxial with and adjacent to the magnetic conductive shaft; the coil framework is coaxial with the magnetic conductive shaft; an outer ring of the coil framework is fixed in the inner side wall of the coil cylinder barrel; a circle of exciting coil winds the coil framework; the magnetorheological fluid diversionhole is used for injecting magnetorheological fluid into the sealing casing; the magnetorheological fluid fills gaps among the coil cylinder barrel, the coil framework and the magnetic conductive shaft; the magnetic conductive shaft rotates relative to the coil cylinder barrel and the coil framework; the exciting coil is powered to generate an axial magnetic field; a magnetic induction line penetrates through the magnetorheological fluid and enters the short magnetic conductive sleeve; the magnetic induction line passes through the short magnetic conductive sleeve, then vertically penetrates through the magnetorheological fluid and enters the magnetic conductive shaft to form a closed loop. A magnetic field of the magnetic fluid sliding bearing disclosed by the invention is a non-uniform magnetic field, so that different positions on the magnetic conductive shaft have different bearing capacities.

Description

technical field [0001] The invention relates to the field of bearings, in particular to a magnetic fluid sliding bearing with controllable damping used in mechanical transmission. Background technique [0002] In actual use, sometimes different parts of the bearing need to carry different forces, but the load-bearing capacity of each part of the bearing in the prior art is the same, which makes a certain part of the bearing damaged due to long-term overloading, and then The life of the entire bearing is shortened. Contents of the invention [0003] The purpose of the present invention is to provide a magnetic fluid sliding bearing to solve the problem that a certain part of the bearing in the prior art is damaged due to long-term overloading, thereby shortening the life of the entire bearing; Sealing problem. [0004] The technical solution of the present invention is as follows: a magnetic fluid sliding bearing, which is characterized in that it includes a magnetically ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C32/06F16C33/74F16N15/00
CPCF16C32/0637F16C33/74F16N15/00F16N2270/52
Inventor 刘旭辉罗启文郭甜甜杨光蒲美玲孙璐婵邱冶张珈豪
Owner SHANGHAI INST OF TECH
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