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An Electromagnetic-Static Double Suspension Thrust Bearing

A technology of thrust bearings and static pressure bearings, applied to bearings, shafts and bearings, mechanical equipment, etc., can solve the problems of low load capacity, small torque, wide temperature range, etc., increase load capacity and stiffness, relieve design restrictions, The effect of improving adjustment ability and precision

Active Publication Date: 2019-02-22
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its advantages are small torque, good for high-speed rotation, can be used in vacuum, wide range of applicable temperature, low noise, long life, no pollution caused by lubrication, etc.; disadvantages are high cost and relatively low carrying capacity

Method used

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  • An Electromagnetic-Static Double Suspension Thrust Bearing
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  • An Electromagnetic-Static Double Suspension Thrust Bearing

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Embodiment Construction

[0019] exist figure 1 and figure 2 In the schematic diagram of the electromagnetic-hydrostatic double-suspension thrust bearing shown, the rotating shaft 1 passes through two identical bushings 2. The bushing is composed of a circular groove and a round tube. The inner diameter of the round tube part of the bushing is Corresponding to the outer diameter of the shaft, such as Image 6 and Figure 8 As shown, a skeleton seal 7 is provided at the free end of the shaft sleeve round tube, and an annular groove is arranged on the inside of the shaft sleeve round tube adjacent to the skeleton seal. The straight grooves are connected to form a C-shaped oil return groove 15, and its two openings are located in the bottom of the shaft sleeve circular groove, and a groove is provided on the inner peripheral surface of the circular tube surrounded by each C-shaped oil return groove, which is a radial support cavity 16 , Each tank bottom is provided with an oil inlet B14, which is conn...

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Abstract

The invention relates to an electromagnetic-static pressure double suspension thrust bearing which mainly comprises a liquid static pressure support system and an electromagnetic suspension support system. A rotary shaft penetrates through two same shaft sleeves, radial support cavities are formed in circular tube portions of the two shaft sleeves, the openings of circular grooves of the two shaft sleeves are opposite and a space ring is arranged therebetween, the bottoms of the two shaft sleeves are adjacent to one sides of stators in a cavity formed by the two shaft sleeves and the space ring, and eight circumferentially distributed bumps: namely magnetic poles, are separately arranged on the other sides of the two stators; an enamelled wire coil sleeves each magnetic pole, the eight magnetic poles are arranged by way of NSSNNSSN, each of the magnetic poles is provided with a static pressure support gasket made from a magnetism isolating material, an axial support cavity is formed in one side, opposite to the magnetic pole, of the static pressure support gasket, and the face, where the axial support cavity is formed, of the static pressure support gasket is adjacent to a thrust collar. According to the electromagnetic-static pressure double suspension thrust bearing provided by the invention, the bearing capacity and rigidity of the bearing can be greatly enhanced without independently arranging an auxiliary supporting and circular cooling system, so that the design limit of an oil return groove can be relieved and the adjusting ability and precision of a bearing system can be improved.

Description

technical field [0001] The invention relates to a sliding bearing. Background technique [0002] Ordinary axial bearings are usually used in pairs, and during operation, due to the action of inertial force, there will be sliding between the steel ball and the raceway, which will increase the temperature and cause the working surface to be easily damaged. It is only suitable for parts that bear axial load on one side and have low speed. Hydrostatic bearings have the advantages of good rigidity and good vibration resistance, so they have been widely valued and widely used. With the development of the global industry, but in the occasion of high power, heavy load and high speed operation, the friction power of the hydrostatic bearing is very large, and it is easy to cause large thermal deformation of the bearing due to excessive temperature. The so-called magnetic bearing is a bearing that uses magnetic attraction and repulsion to support the rotation, also called magnetic su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C32/04F16C32/06
CPCF16C32/0402F16C32/0459F16C32/0655
Inventor 赵建华杜东源王强张斌陈涛刘竟成高殿荣
Owner YANSHAN UNIV
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