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Four-row cylindrical roller bearing of high-bearing rolling mill

A technology of cylindrical roller bearings and cylindrical rollers, applied in the direction of roller bearings, bearing components, shafts and bearings, can solve the problems of complex structure, inconvenient installation, poor bearing capacity, etc., and achieve simplified processing and increased dynamic load , the effect of increasing the carrying capacity

Inactive Publication Date: 2009-11-25
瓦房店第一轧机轴承制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the disadvantages of the prior art such as complex structure, poor bearing capacity and inconvenient installation, and provides a four-row cylindrical roller bearing with a simple outer ring structure and convenient installation for high-load rolling mills.

Method used

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  • Four-row cylindrical roller bearing of high-bearing rolling mill
  • Four-row cylindrical roller bearing of high-bearing rolling mill
  • Four-row cylindrical roller bearing of high-bearing rolling mill

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Embodiment Construction

[0011] The specific implementation manner of the present invention will be further described below in conjunction with the accompanying drawings.

[0012] Such as Figure 1~4 As shown, a four-row cylindrical roller bearing for a high-load rolling mill has double outer rings 1 and double inner rings 2 arranged side by side, and a cage 6 is arranged between the outer ring 1 and the inner ring 2, and each cage 6 is arranged along the circumference Two rows of cylindrical rollers 4 are installed evenly distributed in the direction, and the tail end of the cage 6 is provided with a groove, and a spring steel wire 5 is clamped in it. The spring steel wire 5 is annular and has an opening 3 . In the four rows of cylindrical rollers, the end faces of every two rows of rollers 4 are mounted in a cage 6. Since the gap between every two rows of rollers is eliminated, the length of bearing rollers of the same width is increased, thus increasing The contact area with the inner and outer r...

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Abstract

The invention discloses a four-row cylindrical roller bearing of a high-bearing rolling mill, which is provided with double outer rings (1) and double inner rings (2) arranged side by side. Retainers (6) are arranged between the outer rings (1) and the inner rings (2), and each retainer (6) is evenly provided with two rows of cylindrical rollers (4) along the circumference direction. The four-row cylindrical roller bearing is characterized in that the tail ends of the retainers (6) are provided with spring steel wires (5). Because the structure is adopted, compared with the prior bearing, the bearing solves the problems of inconvenient assembly and countersunk heads of the rollers during maintenance, improves the precision, and increases the bearing capacity and the service life; and practice proves that compared with the bearing of the same size, the bearing of the invention is improved in the radial dynamic load by 30 percent, the service life by 50 times, the linear speed of the rolling mill by more than 60 percent, and a simple, convenient and feasible retainer machining process.

Description

Technical field: [0001] The invention relates to a four-row cylindrical roller bearing for a rolling mill, in particular to a four-row cylindrical roller bearing with high load capacity. Background technique: [0002] The known bearing FCD type for rolling mill is composed of two outer rings, two inner rings, two comb-shaped cages and four rows of cylindrical rollers. Each outer ring of the existing four-row cylindrical bearing for a rolling mill has two outer ribs and one middle rib, so the outer ring has a complex structure, poor processability and low precision. And because the comb-shaped cage is used, the cylindrical roller and the cage are in contact with half of the cage along the axial direction, and the other half is easy to sink, so the bearing capacity is poor and it is not conducive to the assembly of the inner ring, especially when grinding the roll. It is more difficult to unload the inner ring and install it after grinding. Invention content: [0003] The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C19/28F16C33/50
Inventor 宋海芳陶永刚胡伟海宋伯仁杜以月
Owner 瓦房店第一轧机轴承制造有限公司
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