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High-speed deep groove ball bearing

A deep groove ball bearing, high-speed technology, applied in the direction of ball bearings, bearing components, shafts and bearings, etc., can solve the problems of lack of quantitative research on the internal dimensions of bearings, lack of matching relationship between steel balls and grooves, failure of lubrication of rotating support bearings, etc. , to achieve the effect of overcoming stress concentration, small friction, and eliminating blocking

Active Publication Date: 2018-08-03
蚌埠市昊德汽车轴承有限责任公司
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Problems solved by technology

[0005] The present invention solves the lack of matching relationship between the steel ball and the groove in the existing bearing design, the lack of quantitative research on the connecting arc radius dimension of the connecting groove and the rib, and the lack of quantitative research on the internal size of the bearing, which leads to the rotation support bearing of the existing drive motor rotating the rotor at high speed Lubrication failure, increased energy consumption, and even technical problems of bearing burnout, provide a high-speed deep groove ball bearing with an internal size suitable for high-speed rotation, which meets the needs of modern motors with high speed, fast response, low friction and low energy consumption

Method used

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  • High-speed deep groove ball bearing

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Embodiment Construction

[0021] The figure is a schematic diagram of the structure of the high-speed deep groove ball bearing of the drive motor of the new energy vehicle in the section passing through the bearing axis.

[0022] Description will be made in conjunction with the accompanying drawings. The high-speed deep groove ball bearing in the figure is composed of bearing outer ring 1, bearing inner ring 2, steel ball 3, engineering plastic cage 4, sealing ring 5, and viscous grease distributed in each position (lubricating grease is not shown in the figure). fat). The bearing inner ring 2 is processed with an annular inner groove 7 at the outer diameter portion, and the bearing outer ring 1 is processed with an annular outer groove 6 at the inner diameter portion. The steel ball 3 rolls on the inner channel 7 and the outer channel 6. It not only revolves around the center of the bearing, but also rotates around its own axis. The rolling friction force is much smaller than the sliding friction for...

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Abstract

The invention provides a high-speed deep groove ball bearing belonging to deep groove ball bearings. The high-speed deep groove ball bearing is a deep groove ball bearing for supporting high-speed drive motor rotors in industrial engineering and transportation. According to the technical scheme, the value of the radiuses R of channel arcs / the diameter Dw of a steel ball ranges from 0.53 to 0.56, the two ends of connecting arcs are tangent to channels and flanges, a vertical line at the inner end of a sealing ring peripheral protrusion penetrates a retainer, and the protrusion is in seal fit with the outer-ring flange to form a groove. The technical problems that quantitative research on internal dimensions in existing bearing design is lacked, so that lubrication of rotary supporting bearings of existing drive motor high-speed rotary rotors fails, energy consumption is improved, and then the bearings are burnt out are solved.

Description

technical field [0001] The invention belongs to deep groove ball bearings, in particular to a high-speed deep groove ball bearing. Background technique [0002] In order to improve efficiency, the modern industry and transportation industry have increased the requirement of fast response while driving the motor at high speed, that is, the requirement that the speed change with the change of working conditions. The speed of ordinary motors is generally less than 3000r / min, and the dmn value of the motor rotor support bearing (bearing center diameter dm X speed n) is below 300,000. Even for ordinary motors with high revolutions, the highest dmn of the support bearing is 600,000. At present, the speed of industrial high-speed motors has reached 12,000r / min, and the maximum speed of new energy vehicle drive motors has reached 18,000r / min. The dmn of its rotor support bearings, that is, high-speed bearings, has reached 1,000,000. In the past, most drive motor rotors used sealed ...

Claims

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Application Information

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IPC IPC(8): F16C19/16F16C33/58F16C33/66F16C33/78
CPCF16C19/16F16C33/583F16C33/6603F16C33/7806
Inventor 陈升儒周兴山
Owner 蚌埠市昊德汽车轴承有限责任公司
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