Permanent magnet non-contact bearing carrier roller
A permanent magnet bearing, non-contact technology, used in bearings, bearing components, shafts and bearings, etc., can solve the problems of increasing the rotation resistance of the idler, environmental pollution, low service life, etc., to achieve low rotation resistance, long service life, Construct simple effects
Inactive Publication Date: 2017-05-17
CHINA COAL ZHANGJIAKOU COAL MINING MACHINERY
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Problems solved by technology
[0002] The existing belt conveyor rollers generally use traditional bearings for mechanical connection and support. There is rolling friction in the bearings, which increases the rotational resistance of the rollers, and has strict requirements on sealing, and the service life is low. Once the lubricating oil or grease leaks, the will cause environmental pollution
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[0009] exist figure 1 Among them, a permanent magnet non-contact bearing roller is composed of a shaft 1, a retaining ring 2, a labyrinth disk 3, a labyrinth ring 4, a bearing seat 5, a permanent magnet bearing inner ring 6, a permanent magnet bearing outer ring 7 and a roller skin 8 . Among them, the bearing seat 5 is installed in the roller skin 8 and has an interference fit with the roller skin 8. The outer ring of the permanent magnetic bearing 7 is installed in the bearing seat 5 and has an interference fit with the bearing seat 5. The inner ring of the permanent magnetic bearing 6 is installed on the shaft 1 On, interference fit with shaft 1, labyrinth ring 4 is installed in bearing seat 5, interference fit with bearing seat 5, labyrinth disc 3 is installed on shaft 1, interference fit with shaft 1, retaining ring 2 is installed on shaft 1 superior. The magnetic polarity of the opposite tapered surface of the inner ring 6 of the permanent magnetic bearing and the outer...
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The invention provides a permanent magnet non-contact bearing carrier roller which is used for the industry of belt conveyors. The permanent magnet non-contact bearing carrier roller is composed of a shaft, a check ring, a labyrinth disc, a labyrinth ring, a bearing seat, a permanent magnet bearing inner ring, a permanent magnet bearing outer ring and roller skin. The bearing seat is installed in the roller skin, the permanent magnet bearing outer ring is installed in the bearing seat, the permanent magnet bearing inner ring is installed on the shaft, the labyrinth ring is installed in the bearing seat, the labyrinth disc is installed on the shaft, and the check ring is installed on the shaft. The permanent magnet bearing inner ring is matched with the permanent magnet bearing outer ring through conical surfaces, and a magnetic gap is reserved between the matching surfaces. Magnetic poles of the matching surfaces of the permanent magnet bearing inner ring and the permanent magnet bearing outer ring are the same and generate repulsive force, the repulsive force is decomposed into radial repulsive force and axial repulsive force, and radial and axial non-contact positioning and supporting of the roller skin are achieved. Compared with a traditional carrier roller, a bearing of the carrier roller is free of friction, revolving resistance is small, the service life is long, the requirement for sealing is not strict, no lubricating oil or lubricating grease exists, no leakage is caused, economy and environmental protection are achieved, and the permanent magnet non-contact bearing carrier roller is simple in structure and free of maintenance.
Description
technical field [0001] The invention relates to a permanent magnet non-contact bearing idler, which is mainly used for reducing the rotation resistance of the idler, prolonging the service life and reducing the requirements for sealing. Background technique [0002] The existing belt conveyor rollers generally use traditional bearings for mechanical connection and support. There is rolling friction in the bearings, which increases the rotational resistance of the rollers, and has strict requirements on sealing, and the service life is low. Once the lubricating oil or grease leaks, the Will cause environmental pollution. Contents of the invention [0003] In order to achieve the purpose of small rotation resistance, low sealing requirements and long service life of the idler roller, the invention provides a brand new permanent magnet non-contact bearing idler roller. [0004] The solution adopted by the present invention to solve its technical problems is: a permanent magn...
Claims
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IPC IPC(8): F16C32/04F16C35/00
CPCF16C32/0423F16C35/00F16C2202/44
Inventor 张炜李芳
Owner CHINA COAL ZHANGJIAKOU COAL MINING MACHINERY