Sealed self-aligning roller bearing for high-speed rail and repair method thereof

A technology of self-aligning roller bearing and repair method, applied in the field of bearings, can solve the problems of high maintenance cost, low bearing capacity, high noise, etc.

Inactive Publication Date: 2014-06-04
SHANDONG KAIMEIRUI BEARING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The size of this type of bearing is specially designed for high-speed rail. Due to structural design reasons, the self-aligning roller bearing of this design has disadvantages such as easy pollution of grease, high noise during operation, high energy consumption, low load-carrying capacity, and poor safety performan...

Method used

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  • Sealed self-aligning roller bearing for high-speed rail and repair method thereof
  • Sealed self-aligning roller bearing for high-speed rail and repair method thereof
  • Sealed self-aligning roller bearing for high-speed rail and repair method thereof

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Embodiment Construction

[0032] Specific embodiments of the present invention are described with reference to the accompanying drawings.

[0033] as attached Figure 5 Shown: the parts of the bearing of the present invention include an outer ring 1, an inner ring 2, a roller 3, a nylon cage 4, and a sealed housing 6.

[0034] as attached Figures 5 to 6 As shown: the axial section of the nylon cage 4 is a " / " profile, that is, the inner and outer tapered surfaces are shown as a flat line L on the section, parallel to each other. Both end faces of the cage are annular planes M perpendicular to the axial direction. The outer diameter of the large end and the inner diameter of the small end of the cage near both sides are cylindrical surfaces N parallel to the axial direction. The cage is made of glass fiber reinforced nylon 66 and adopts integral injection molding. The glass fiber reinforced nylon 66 is an engineering plastic material. Please refer to the relevant technical standards for engineering ...

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Abstract

The invention relates to a sealed self-aligning roller bearing for a high-speed rail and a repair method thereof. The bearing comprises an inner ring, an outer ring, a roller, a holder and a sealed housing, wherein the holder is formed by integral injection moulding of a glass fiber enhanced nylon 66 material and is located on a middle line between the inner and outer rings; the holder is integrally cone-shaped, and the axial section of the single side wall of the holder is /-shaped; roller installation parts are uniformly distributed in the periphery of the holder, and the side face of each roller installation part is a spherical face; the included angle beta between the connecting line of the widest part of each roller installation part and the center of the bearing and the radial section of the bearing is equal to a nominal contact angle. The invention further discloses the repair method of the bearing. According to the structural design, the repaired bearing can be continuously used, so that the maintenance cost of the high-speed rail is effectively lowered, and the service life of the bearing is remarkably prolonged.

Description

technical field [0001] The invention relates to the technical field of bearings, and mainly relates to a structure type of a sealed spherical roller bearing for high-speed rail, and also relates to a method for repairing this type of bearing. Background technique [0002] At present, the self-aligning roller bearings used on high-speed rail are SRB130×220 used in single sets or in pairs, and its internal structure is as follows: Figure 1 to Figure 4 Shown: It is composed of outer ring 1, inner ring 2, roller 3, stamping cage 4, and intermediate retaining ring 5. The size of this type of bearing is specially designed for high-speed rail. Due to structural design reasons, the spherical roller bearing of this design has disadvantages such as easy contamination of grease, high noise during operation, high energy consumption, low load-carrying capacity, and poor safety performance. Due to the particularity of high-speed rail bearing application occasions, for safety consideratio...

Claims

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Application Information

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IPC IPC(8): F16C19/38B23P6/00F16C33/80
CPCF16C19/38F16C23/086
Inventor 燕敬祥张士玉丁喜荣刘筠燕敬东冯冰
Owner SHANDONG KAIMEIRUI BEARING TECH CO LTD
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