CN201301898Y - Four-row tapered roller bearing for new hot-rolling mill - Google Patents

Abstract

A four-row tapered roller bearing for new hot-rolling mill belongs to the technical field of steel industry, which mainly comprises a lange-angle outer ring (1), a roller (2), an outer spacer ring (3), a retainer (4), an inner spacer ring (5), an lange-angle double roll-path outer ring (6) and an inner ring (7), wherein the roller (2), the retainer (4) and the inner ring (7) can form an inner component which is assembled on the lange-angle outer ring (1), the outer spacer ring (3) is assembled on the inner component, the lange-angle double roll-path outer ring (6) is assembled on the outer spacer ring (3), the inner spacer ring (5) is assembled on the lange-angle double roll-path outer ring (6), and the lange-angle outer ring (1) is assembled on the outer spacer ring (3). The four-row tapered roller bearing for new hot-rolling mill has the beneficial effects of not only meeting the radial and axial load requirements of a bearing, but also solving the problems of abrasion of the end face of the bearing, melting of the retainer, burning of the bearing, short service life and the like.

Description

A kind of four-row tapered roller bearing for full new hot-rolling mill

Technical field

The utility model relates to a kind of four-row tapered roller bearing, is mainly used in steel industry, is used on the hot rolled plate milling train precision rolling working roll.

Background technique

Existing milling train precision rolling working roll bearing mainly adopts cylinder/circular cone combination bearing, bears radial and axial load respectively.Because so this bearing is the structural imperfection that has, the inner ring of cone and cylinder often produces relative rotation, end wear with the cylindrical roller inner ring, cause the copper holder grazing of the steel retainer and the cylindrical roller of tapered roller, the overheated copper cage of cylindrical roller that makes of local appearance is melted, and then the rolling element rotation is obstructed, cause bearing burnt.No matter the product or the working life of state's inner bearing that are Aktiebolaget SKF at most all can only reach 3000 hours, do not reach usage requirement.

The model utility content

The purpose of this utility model provides a kind of four-row tapered roller bearing for full new hot-rolling mill, can satisfy the radial and axial load requirement of bearing, can also prevent the generation of phenomenons such as bearing face wearing and tearing, retainer thawing, bearing burnt effectively, prolong the working life of bearing.

In order to achieve the above object, the technical solution of the utility model is as follows:

A kind of four-row tapered roller bearing for full new hot-rolling mill, mainly form by wide-angle outer ring, roller, outer ring spacer, retainer, cone spacer, wide-angle outer ring with double raceway and inner ring, roller, retainer and inner ring are formed inner assembly, this inner assembly is assembled on the wide-angle outer ring, outer ring spacer is assembled on the described inner assembly, the wide-angle outer ring with double raceway is assembled on the outer ring spacer, and cone spacer is assembled on the wide-angle outer ring with double raceway, and the wide-angle outer ring is assembled on the outer ring spacer.

The beneficial effects of the utility model are: this four-row tapered roller bearing has not only satisfied the radial and axial load requirement of bearing, can also prevent the generation of phenomenons such as bearing face wearing and tearing, retainer thawing, bearing burnt effectively, prolong the working life of bearing.

Description of drawings

Fig. 1 is the structural representation of the utility model four-row tapered roller bearing for full new hot-rolling mill.

Among the figure: 1, wide-angle outer ring, 2, roller, 3, outer ring spacer, 4, retainer, 5, cone spacer, 6, the wide-angle outer ring with double raceway, 7, inner ring.

Embodiment

Below in conjunction with accompanying drawing the utility model is done description in further detail:

As shown in Figure 1, a kind of four-row tapered roller bearing for full new hot-rolling mill of the present utility model, mainly by people's angle outer ring 1, roller 2, outer ring spacer 3, retainer 4, cone spacer 5, wide-angle outer ring with double raceway 6 and inner ring 7 are formed, roller 2, retainer 4 and inner ring 7 are formed inner assembly, its assembly process is: the people's angle of packing into earlier outer ring 1, reinstall roller 2, the inner assembly that retainer 4 and inner ring 7 are formed, reinstall outer ring spacer 3, reinstall wide-angle outer ring with double raceway 6, reinstall cone spacer 5, reinstall roller 2, the inner assembly that retainer 4 and inner ring 7 are formed reinstalls outer ring spacer 3, reinstalls wide-angle outer ring 1 at last.

The radial load that bears according to bearing and the concrete numerical value of thrust load, through calculating and finite element analysis, choose only main parameter, comprise comparison people's parameter such as contact angle, rolling element diameter, length, quantity, produce four-row tapered roller bearing for full new hot-rolling mill of the present utility model.

This novel wide-angle four-row tapered roller bearing, through the inner proof of using, not only well satisfied the radial and axial load requirement of bearing, but also solved problems such as bearing face wearing and tearing, retainer thawing, bearing burnt, life-span weak point well, make reach more than 8000 hours the working life of bearing.

Claims (1)

1, a kind of four-row tapered roller bearing for full new hot-rolling mill, it is characterized in that, this bearing is mainly by wide-angle outer ring (1), roller (2), outer ring spacer (3), retainer (4), cone spacer (5), wide-angle outer ring with double raceway (6) and inner ring (7) are formed, roller (2), retainer (4) and inner ring (7) are formed inner assembly, this inner assembly is assembled on the wide-angle outer ring (1), outer ring spacer (3) is assembled on the described inner assembly, wide-angle outer ring with double raceway (6) is assembled on the outer ring spacer (3), cone spacer (5) is assembled on the wide-angle outer ring with double raceway (6), and wide-angle outer ring (1) is assembled on the outer ring spacer (3).

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