A permanent magnetic suspension bearing and its installation structure
A technology of magnetic suspension bearing and mounting structure, which is applied in the directions of bearings, bearing components, shafts and bearings, etc., can solve the problems of inapplicability of permanent magnetic suspension bearings and so on.
Active Publication Date: 2016-06-01
北京京冶轴承股份有限公司
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Problems solved by technology
However, for some working occasions where the outer ring is the rotor and the inner ring is the stator, such as the driven wheels of various vehicles, the above-mentioned permanent magnetic suspension bearing is not suitable
Method used
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Embodiment Construction
[0038] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0039] Such as Figure 1 to Figure 3 As shown, the permanent magnetic suspension bearing provided by the present invention includes:
[0040] inner circle 1;
[0041] Outer ring 2, the outer ring 2 is a permanent magnet, the inner ring 1 is sleeved in the outer ring 2, and the inner diameter of the outer ring 2 is larger than the outer diameter of the inner ring 1, and the outer ring 2 is along the The thickness in the axial direction is smaller than the thickness of the inner ring 1 along the axial direction;
[0042] The first radial permanent magnet 3, the first radial permanent magnet 3 is fixed on the inner ring 1 and magnetically attracts the outer ring 2 in the radial direction;
[0043] A plurality of axial permanent magnets 4, the plurality of axial permanent magnets 4 are fixed on the inner ring 1 and are respectively located on bot...
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A permanent magnetic suspension bearing and an installation structure thereof are disclosed. The permanent magnetic suspension bearing includes: an inner ring (1); an outer ring (2), which is a permanent magnet, wherein the inner ring (1) is provided inside of the outer ring (2), the inner diameter of the outer ring (2) is greater than the outer diameter of the inner ring (1), and the thickness of the outer ring (2) in the axial direction is less than that of the inner ring (1); a first radial permanent magnet (3), which is fixed on the inner ring (1) magnetically attracts to the outer ring (2) in the radial direction; and multiple axial permanent magnets (4), which are fixed on the two end faces of the inner ring (1), so that the outer ring (2) is in a force balance state in the axial direction. The installation structure of the permanent magnetic suspension bearing also includes an assistant bearing (8), a fixed shaft (14) and a hollow rotation shaft (15). The permanent magnetic suspension bearing and the installation structure thereof are more suitable for the work situation in which the inner ring is the stator and outer ring is the rotor.
Description
technical field [0001] The invention relates to a permanent magnetic suspension bearing and its installation structure. Background technique [0002] Magnetic suspension bearings use magnetic force to suspend the rotor in the air, so that there is no mechanical contact between the rotor and the stator, and the rotor can run to a high speed. Oil pollution and other advantages, especially suitable for special environments such as high speed, vacuum, and ultra-clean. [0003] The inventor of the present application discloses a permanent magnetic levitation bearing in Chinese patent CN201531526U. This permanent magnetic levitation bearing mainly includes an inner ring and an outer ring, wherein the inner ring is a permanent magnet, and the outer ring is made of magnetically conductive or non-magnetically conductive material. become. Axial permanent magnets are respectively fixed at both ends of the outer ring of the permanent magnetic suspension bearing, and radial permanent m...
Claims
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IPC IPC(8): F16C32/04F16C35/08
CPCF16C32/0402F16C32/0412F16C32/0427
Inventor 张平
Owner 北京京冶轴承股份有限公司