Method for inlaying permanent magnetic core in inner ring and outer ring of hemispherical air dynamic pressure bearing
An aerodynamic pressure bearing and outer ring technology, applied in bearings, bearing components, shafts and bearings, etc., can solve problems such as friction and wear, and there is no good solution, so as to improve service life, dynamic load capacity and support stiffness , Reduce the effect of friction and wear
Inactive Publication Date: 2012-04-25
LUOYANG BEARING RES INST CO LTD
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Problems solved by technology
[0006] How to effectively solve the problem of friction and wear between the outer ring and the inner ring of the hemispherical aerodynamic pressure bearing when it starts and stops, there is no good solution so far
Method used
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[0017] The invention relates to a method for inlaying permanent magnetic cores in the inner and outer rings of a hemispherical air dynamic pressure bearing.
[0018] Before introducing the present invention, a brief introduction will be made to the current structure of the hemispherical aerodynamic pressure bearing.
[0019] The shape of the current structure of the hemispherical aerodynamic pressure bearing is similar to that of an end cover, and it is composed of an outer ring 1 and an inner ring 2 made of hard alloy steel. figure 1 , the left end face of the outer ring 1 is defined as the outer cone end face, and the inner ring end face on the same plane as the outer ring cone end face is defined as the inner cone end face, and the inner diameter of the outer ring is a bowl-shaped hemispherical structure with a spiral groove , the outer diameter of the inner ring matches the inner diameter of the outer ring and forms a wedge-shaped gap, the inner diameter of the inner ...
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A method for inlaying a permanent magnetic core in an inner ring and an outer ring of a hemispherical air dynamic pressure bearing. An outside-the-ring rectangular ring groove and an inside-the-ring rectangular ring groove are processed on same end surfaces of an outer ring (1) and an inner ring (2), are respectively inlaid with an outer annular permanent magnetic core (1.1) and an inner annular permanent magnetic core (2.1), and are fixed by epoxy resin sealing; the outer annular permanent magnetic core and the inner annular permanent magnetic core (2.1) are magnetic but do not have magneticpoles. When assembly and cleaning are completed, magnetization is performed by a magnetizing device so as to allow the N pole of the inner annular permanent magnetic core to face the N pole of the outer annular permanent magnetic core, and the S pole of the inner annular permanent magnetic core to face the S pole of the outer annular permanent magnetic core; therefore a magnetic repulsion combination unit is formed to completely or partially counteract the self gravity of the hemispherical air dynamic pressure bearing; a wedge-shaped gap formed by the outer ring and the inner ring is prevented from contact in a static state and is also prevented from contact in a dynamic state; the dynamic supporting rigidity of the hemispherical air dynamic pressure bearing is improved, and the structureis novel and unique.
Description
technical field [0001] The invention belongs to the technical field of bearings, in particular to a method for embedding permanent magnetic cores in the inner and outer rings of a hemispherical air dynamic pressure bearing. [0002] Background technique [0003] The shape of the hemispherical aerodynamic pressure bearing is similar to that of an end cap, and it is composed of an outer ring and an inner ring made of hard alloy steel. The inner diameter of the ring is matched to form a wedge-shaped gap, the inner diameter of the inner ring is conical and connected with the taper shaft, and the hemispherical aerodynamic bearing is fixed on an object through the mounting hole provided by the outer ring when it is working. [0004] Hemispherical aerodynamic pressure bearings have many advantages. During operation, the air is brought into the wedge-shaped gap through the rotation of the cone shaft itself and a certain dynamic pressure bearing capacity is generated. As long as the...
Claims
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Login to View More IPC IPC(8): F16C43/02F16C32/04
Inventor 葛世东臧稳通于晓凯孙北奇谢鹏飞
Owner LUOYANG BEARING RES INST CO LTD