Combined type double-row cylindrical roller bearing

A technology of cylindrical roller bearings and cylindrical rollers, applied in the direction of bearing components, shafts and bearings, mechanical equipment, etc., can solve the problems that traditional bearings cannot be used universally, achieve reduced raceway deformation, wide adaptation range, and increased adaptation sexual effect

Pending Publication Date: 2018-02-23
方晓超
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a combined double-ro

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  • Combined type double-row cylindrical roller bearing

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Embodiment Construction

[0021] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0022] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "center", "inner", "outer", "top", "bottom" etc. are based on the attached The orientation or positional relationship shown in the figure is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a reference to this invention. Invention Limitations.

[0023] In the description of the present invention, it should be noted that ...

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Abstract

The invention relates to the field of bearings, in particular to a combined type double-row cylindrical roller bearing. A single bearing body comprises a bearing inner ring, a bearing outer ring and aroller, wherein the roller is clamped between the outer surface of the bearing inner ring and the inner surface of the bearing outer ring; a concave area is arranged at the position of the roller onthe outer surface of the bearing inner ring and the inner surface of the bearing outer ring; clamping projections and clamping guide rails, which are alternately distributed, are arranged on side walls of two sides of the bearing outer ring; the clamping projections and the clamping guide rails are on the same circumference; the roller is a cylindrical roller, and the diameter of one end of the cylindrical roller gradually decreases; and the radius of curvature of one side of a raceway, opposite to the end of the cylindrical roller with a gradually decreasing diameter, gradually increases. When the combined type double-row cylindrical roller bear is in use, the number of single bearing bodies is selected according to the size of a required bearing to realize matching; two single bearing bodies are connected on one side surface through the clamping projections and the clamping guide rails to ensure that requirements of bearings with different sizes are met; and by reduction of the diameter of the cylindrical roller, the centrifugal force of the cylindrical roller is reduced, and the precision retentivity is improved.

Description

technical field [0001] The invention relates to the field of bearings, in particular to a combined double-row cylindrical roller bearing. Background technique [0002] At present, for the double-row cylindrical roller bearings used for lathe spindle support, domestic bearing manufacturers basically still use the traditional linear raceways for the cylindrical rollers and rings of the bearings, and the bearing capacity and service life of the bearings are not ideal. Used in the general lathe and maintenance markets. The contact curve between the cylindrical roller and the raceway is a straight line. From a large number of anatomical analyzes of the failed bearings, it is found that when this type of bearing fails, the ring raceway and the cylindrical roller are basically fatigue spalled in the middle. Moreover, during the operation of the bearing, the cylindrical roller will generate a huge centrifugal force, and the centrifugal force of the cylindrical roller will generate ...

Claims

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Application Information

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IPC IPC(8): F16C33/58F16C33/34
CPCF16C33/585F16C33/34
Inventor 方晓超
Owner 方晓超
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