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Electromagnetic-static-pressure dual-suspension radial bearing

A radial bearing, static pressure technology, applied in the field of sliding bearings, can solve the problems of low bearing capacity, small torque, wide temperature range, etc., to increase the bearing capacity and rigidity, relieve design restrictions, improve the effect of adjustment capacity and accuracy

Active Publication Date: 2017-07-21
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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  • Electromagnetic-static-pressure dual-suspension radial bearing
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  • Electromagnetic-static-pressure dual-suspension radial bearing

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Embodiment Construction

[0019] exist figure 1 , figure 2 , image 3 and Figure 4 In the schematic diagram of the radial bearing with electromagnetic-hydrostatic double suspension shown, the middle part of the top surface of the bearing base 4 is provided with a semi-cylindrical upper opening groove with two ends arranged on the two parallel facades of the bearing base, and the middle part of the upper opening groove There is an oil inlet groove A22 in the middle with a half-interrupted and downward recessed strip groove on both sides. Each groove is equipped with an oil inlet B23, which passes through the internal oil passage of the bearing base and the oil inlet hole D12 Connected, the oil inlet hole is located at one end of the base with a joint A5. In the middle part of the upper opening groove, there is also an overall downward recessed groove parallel to the oil inlet groove, that is, the oil return groove A21. The bearing base is provided with screw holes 11, which correspond to the screw...

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Abstract

The invention relates to an electromagnetic-static-pressure dual-suspension radial bearing. The electromagnetic-static-pressure dual-suspension radial bearing is mainly characterized in that a half-cylindrical upper open slot is formed in the top surface of a bearing base; the bearing base is connected with a bearing upper cover; a lower open slot corresponding to the upper open slot of the bearing base is formed in the bottom surface of the bearing upper cover; two half-round slot holes of the upper open slot and the lower open slot form a cylindrical cavity which is provided with openings in two ends and is different in internal diameters; a stator of which the peripheral surface corresponds to the cylindrical cavity is arranged in the cylindrical cavity; eight magnetic poles are arranged on the inner peripheral surface of the stator; a static-pressure support pad is arranged on the centripetal free end surface of each magnetic pole of the stator; an enameled coil is arranged on each magnetic pole of the stator in a sleeving manner; and the eight magnetic poles are distributed in an NSSNNSSN manner. The electromagnetic-static-pressure dual-suspension radial bearing integrate the advantages of two support systems, namely a static pressure support system and an electromagnetic suspension support system, so that the carrying capacity and rigidity of a bearing are improved greatly, and an auxiliary support and a circulating cooling system are not required to be arranged individually, so that the design limitation of an oil return chute can be relieved, and the regulating capacity and the precision of a bearing system are improved.

Description

technical field [0001] The invention relates to a sliding bearing. Background technique [0002] Hydrostatic bearings have the advantages of good radial stiffness, high positioning accuracy, 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 the bearing to have a large thermal deformation 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 suspension bearing. Its advantages are small torque, good for high-speed rotation, can be used in vacuum, wide applicable temperature range, low noise, long life, no pollution caused by lubrication, etc.; disadvantages are high cost and relatively low carrying capacity. Contents of the invention [...

Claims

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Application Information

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IPC IPC(8): F16C32/04F16C32/06
CPCF16C32/044F16C32/0629
Inventor 赵建华张斌王强陈涛刘竟成高殿荣
Owner YANSHAN UNIV
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