CN206918059U - Entity frame novel double-row cylinder roller bearing - Google Patents

Abstract

Entity frame novel double-row cylinder roller bearing, there is a double-row outer-ring, a biserial inner ring, set multiple rollers between inside and outside circle, roller is supported by solid cage.To solve primitive axis, to hold low amount dynamic load charge values, short life, Bearing Consumption more, the problems such as influenceing plant output and increase cost.In the appearance and size of offer:Bearing bore diameter d=440mm, bearing outside diameter D=640mm, bearing width T=B=230mm, initiated using designer《Limit design method for rolling bearing》, it is determined that roller diameter Dw, roller length L, each column roller quantity Z spans and numerical value.The bearing arrangement of design is compared with the bearing of existing same type, roller diameter and roller length are maximum, i.e. under the conditions of holding bearing ring and retainer have enough intensity requirements, effective sky that roller occupies as much as possible is excavated to ask, improve bearing amount dynamic load charge values, service life increases substantially, and reduces client cost.For steel, nonferrous metallurgy metal industry backup roll of rolling mill or working roll, belong to extra large size bearing.

Description

Entity frame novel double-row cylinder roller bearing

Technical field

The utility model is a kind of Biserial cylindrical roller bearing, belongs to extra large size bearing.It is mainly used in steel and nonferrous metallurgy On industry backup roll of rolling mill or working roll.Belong to engineering element bearing class (F16C), the rolling class (B21B) of metal.

Background technology

Past cylinder roller bearing is designed using out-of-date methods, and the product roller diameter of design is small, and length is short, the amount of bearing Dynamic load charge values are low, and service life is short, add the non-cutting times such as the consumption of bearing, roll change and also lengthen, directly affects steel mill Yield simultaneously causes cost to increase.

The content of the invention

The utility model proposes entity frame novel double-row cylinder roller bearing, its purpose is exactly to solve in above-mentioned old design The problem of Biserial cylindrical roller bearing amount dynamic load charge values are low, and service life is short.

The technical scheme of use is as follows：

Entity frame novel double-row cylinder roller bearing, has a double-row outer-ring 1 and a biserial inner ring 2, between inside and outside circle If multiple rollers 4, and supported by solid cage 3, the internal diameter d of bearing, bearing outside diameter D, bearing width T (B), respectively table 1 In numerical value, be respectively table 1 per number of columns Z spans it is characterized in that a kind of model bearing roller diameter Dw, roller length L Number range；Table 1

To obtain the optimum efficiency of entity frame novel double-row cylinder roller bearing, the roller diameter Dw of the middle (center) bearing of table 1, roller Length L, roller take numerical value in table 2 per number of columns Z, i.e., leave out the numerical value of the nominal dimension after tolerance in table 1 respectively.Table 2

The utility model beneficial effect:This entity frame novel double-row cylinder roller bearing is proposed using inventor is pioneering " limit design method for rolling bearing " design, keep appearance and size it is constant in the case of, it is straight with model bearing ratio, roller with original Footpath Dw is maximum, and roller length L is most long, and roller sets quantity Z to reduce in circumferential each column, that is, keeps bearing ring and retainer to have foot Under the conditions of enough intensity requirements, as much as possible excavate effective sky that roller occupies and ask, make amount dynamic load charge values highest, use the longevity Life increases substantially.

Brief description of the drawings

Fig. 1 entity frame novel double-row cylinder roller bearing positive views.

The shape graph of Fig. 2 rollers 4 (is used for solid cage 3)

Embodiment

See Fig. 1, Fig. 2, the entity frame novel double-row cylinder roller bearing in table 2, have a double-row outer-ring 1, one double Row inner ring 2, sets multiple rollers 4 between inside and outside circle, biserial 2Z roller 4 altogether.Roller is supported by solid cage 3.Bearing bore diameter D is 440mm, and bearing outside diameter D is 640mm, during bearing inner race width B=bearing outer ring width T=230mm, uses limit design method The roller diameter Dw of the bearing of determination is 54mm, and roller length L is 71.5mm, and it is 30 that roller sets quantity Z in circumferential each column.

Claims (2)

1. entity frame novel double-row cylinder roller bearing, there is a double-row outer-ring (1) and a biserial inner ring (2), inside and outside circle Between set multiple rollers (4), and supported by solid cage (3), the internal diameter d of bearing, bearing outside diameter D, bearing width T (B), respectively For the numerical value in table 1, it is characterized in that a kind of model bearing roller diameter Dw, roller length L, each column roller quantity Z spans The respectively number range of table 1；Table 1

2. the entity frame novel double-row cylinder roller bearing as described in claim 1, it is characterized in that the roller diameter of the model bearing Dw, roller length L, each column roller quantity Z numerical value are numerical value in table 2：

Table 2