CN206918054U

CN206918054U - The new four-row tapered roller bearing of strut support

Info

Publication number: CN206918054U
Application number: CN201720756307.3U
Authority: CN
Inventors: 文宇; 刘小辉; 李开明; 张秀萍
Original assignee: CHENGDU KEHUA HEAVY BEARING Co Ltd
Current assignee: CHENGDU KEHUA HEAVY BEARING Co Ltd
Priority date: 2017-06-27
Filing date: 2017-06-27
Publication date: 2018-01-23
Anticipated expiration: 2027-06-27

Abstract

The new four-row tapered roller bearing of strut support, has two single-row outer rings, an outer ring of biserial second, two biserial inner rings, sets cone spacer between two inner rings, sets two outer ring spacers altogether between outer ring, set multiple rollers inside, between outer ring, and supported with post cage.It is big to solve existing bearing impact load, the problems such as rotating speed is high, bearing life is short, roll change elapsed time is long, under the conditions of the internal diameter size 863.6mm of bearing designation 3806/863.6, using company's original creation《Limit design method for rolling bearing》, there is provided the appearance and size and structural element value of the model bearing.This new design is realized under the conditions of design strength and technique processing request is met, the roller diameter of design is maximum, and length is most long, the dynamic load rating value highest of bearing, and the mathematic(al) expectation of bearing is most long.Meet requirement of the user to bearing long-life and reduction use cost.Belong to extra large size bearing.Make support roller special bearing on steel and nonferrous metallurgy industry rolling mill.

Description

The new four-row tapered roller bearing of strut support

Technical field

A kind of four-row tapered roller bearing, belong to extra large size bearing.It is mainly used on steel and nonferrous metallurgy industry rolling mill Make support roller special bearing.Belong to engineering element bearing class (F16C), the rolling class (B21B) of metal.

Background technology

The four-row tapered roller bearing of existing iron and steel metallurgy, coloured industry rolling mill dress, because of bearing working condition Badly, rotating speed is high, and the load born is big, and impulsive force is big.Arduously taken time when changing roll.User, to reduce use cost Bearing is asked to possess the long-life.

The content of the invention

The utility model proposes the new four-row tapered roller bearing of strut support, its purpose is exactly to provide the user the long-life Four-row tapered roller bearing.Provide the appearance and size and structural element numerical value of a kind of four-row tapered roller bearing of new model.

The utility model is used for bearing designation 3806/863.6, and (i.e. 38 be four-row tapered roller bearing, and 06 is indefinite size Serial code name, 863.6 be bearing bore diameter).Technical scheme provided by the utility model is that a kind of of this bearing designation nonstandard newly sets Meter.The technical scheme of use is as follows：

The new four-row tapered roller bearing of strut support, there are two single-row outer rings 1, second outer ring of biserial 3, two double Row inner ring 2, cone spacer 5 is set between two biserial inner rings, set two outer ring spacers 6 altogether between single-row outer ring and the second outer ring, inside, Multiple rollers 4 are set between outer ring, and are supported by post cage 7；It is characterized in that：Outside a kind of bearing bore diameter d of model bearing, bearing Footpath D, bearing outer ring element width T, bearing inner race element width B, bearing roller diameter Dw, roller length L, each column roller quantity Z and roller half cone angle ψ span are respectively the number range of the sequence number 1 of table 1；

Table 1

To obtain the optimum efficiency of four-row tapered roller bearing, a kind of bearing bore diameter d of model bearing in table 1, outside bearing Footpath D, bearing outer ring element width T, bearing inner race element width B, bearing roller diameter Dw, roller length L, each column roller quantity Z and roller half cone angle ψ value are respectively the numerical value of sequence number 1 in table 2.

Table 2

The utility model beneficial effect：The new four-row tapered roller bearing of this strut support, " axis of rolling created using company Hold limit design method " design, it is determined that a kind of above-mentioned structural element numerical value of the row conical bearing of model four, the design realize Under the conditions of design strength and technique processing request is met, the rolling element diameter of design is maximum, and length is most long, and the specified of bearing moves Load value highest, the mathematic(al) expectation of bearing is most long, meets the long life requirement of user, reduces the use cost of user.

Brief description of the drawings

The new four-row tapered roller bearing positive view of Fig. 1 strut supports.

The shape graph of Fig. 2 rollers 4.

Embodiment

It is shown in Table the new four-row tapered roller bearing of strut support of sequence number 1 in 2.

See Fig. 1, there are two single-row outer rings 1, second outer ring of biserial 3, two biserial inner rings 2, in two biserials Cone spacer 5 is set between circle, sets two outer ring spacers 6 altogether between single-row outer ring and the second outer ring, sets multiple rollers 4 inside, between outer ring, and Supported by post cage 7.Post cage 7 is that each center of roller 4 has individual axially extending bore, and a pillar is passed through in through hole 7.1, every pillar two is connected and formed with 2 rounded washers 7.2 respectively.

Sequence number 1 and Fig. 1 in being shown in Table 2, bearing appearance and size：Bearing bore diameter d is 863.6mm, and bearing outside diameter D is 1130.3mm, bearing outer ring element width T are 669.925mm equal to bearing inner race element width B.Use Ultimate Design of Rolling Bearings Method determine four-row tapered roller bearing structural element value be：Sequence number 1 and Fig. 2 in being shown in Table 2, roller diameter Dw are 73.716mm, roller length are that L is 112.5mm, are 41 in circumferential each column roller quantity Z, and roller semi-cone angle ψ is 53 '.

Claims

1. the new four-row tapered roller bearing of strut support, there are two single-row outer rings (1), an outer ring of biserial second (3), two Biserial inner ring (2), cone spacer (5) is set between two biserial inner rings, set two outer ring spacers altogether between single-row outer ring and the second outer ring (6) multiple rollers (4), are set inside, between outer ring, and are supported by post cage (7)；It is characterized in that：A kind of axle of model bearing Hold internal diameter d, bearing outside diameter D, bearing outer ring element width T, bearing inner race element width B, bearing roller diameter Dw, roller length L, each column roller quantity Z and roller half cone angle ψ span are respectively the number range of the sequence number 1 of table 1；

Table 1

2. the new four-row tapered roller bearing of the strut support as described in claim 1, it is characterized in that：A kind of axle of the model bearing Hold internal diameter d, bearing outside diameter D, bearing outer ring element width T, bearing inner race element width B, bearing roller diameter Dw, roller length L, each column roller quantity Z and roller half cone angle ψ value are respectively the numerical value of sequence number 1 in table 2；Table 2