CN206918062U

CN206918062U - Eight novel double-row taper roll bearings in basket shape

Info

Publication number: CN206918062U
Application number: CN201720760876.5U
Authority: CN
Inventors: 文宇; 李开明; 刘小辉; 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

Eight novel double-row taper roll bearings in basket shape, have two single-row inner rings, a double-row outer-ring, and cone spacer is set between two inner rings, set multiple rollers inside, between outer ring, between two row rollers relative position be in eight shapes, supported by basket 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, using company's original creation《Limit design method for rolling bearing》, there is provided the appearance and size and structural element value of five kinds of new model bearings, the design are realized under the conditions of design strength and technique processing request is met, the roller diameter of design is maximum, 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 client to bearing long-life and reduction use cost.Belong to large-scale, extra large size bearing.Make support roller and working roll special bearing on steel and nonferrous metallurgy industry rolling mill.

Description

Eight novel double-row taper roll bearings in basket shape

Technical field

A kind of double-row conical bearing, belong to large-scale, extra large size bearing.It is mainly used in steel and nonferrous metallurgy industry steel rolling Make support roller and working roll special bearing on machine.Belong to engineering element bearing class (F16C), the rolling class (B21B) of metal.

Background technology

The double-row conical bearing of existing steel, nonferrous metallurgy industry rolling mill or working roll dress, because of bearing Working condition is severe, and rotating speed is high, and the shock loading born is big, thus the service life of bearing is shorter, roll change consumption accumulation auxiliary Time is grown, and user is reduction use cost, it is desirable to which bearing possesses the long-life.

The content of the invention

The utility model proposes basket shape in eight novel double-row taper roll bearings, its purpose is exactly to provide the user longevity The double-row conical bearing of life.Provide the structural element numerical value of five kinds of model novel double-row taper roll bearings.

Its technical scheme is as follows

Eight novel double-row taper roll bearings in basket shape, have two single-row inner rings 2, a double-row outer-ring 4, two inner rings Between set cone spacer 3, set multiple rollers 1 between inside and outside circle, relative position is interior eight shapes between two row rollers, and by basket cage 5 Support；It is characterized in that：Bearing bore diameter d, bearing outside diameter D, bearing inner race element width B1, the bearing outer ring width of five kinds of model bearings C1, roller diameter Dw, roller length L, each column roller quantity Z and roller half cone angle ψ span are respectively sequence number in table 1 1-5 number ranges；

Table 1

。

To obtain the optimum efficiency of double-row conical bearing, the bearing bore diameter d of five kinds of model bearings in table 1, outside bearing Footpath D, bearing inner race element width B1, bearing outer ring width C 1, roller diameter Dw, roller length L, each column roller quantity Z and Roller half cone angle ψ value is respectively the value of sequence number 1-5 in table 2.As leave out the number that tolerance only has nominal dimension in table 1 Value.

Table 2

The utility model beneficial effect：Eight novel double-row taper roll bearing in this basket of shape, using " rolling for company's original creation Bearing limit design method " designs, it is determined that the structural element numerical value of above-mentioned five kinds of model double-row conical bearings, the design Realize 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 volume of bearing Determine dynamic load charge values highest, the mathematic(al) expectation of bearing is most long, meets the long life requirement of client, reduce the use of client into This.

Brief description of the drawings

Eight novel double-row taper roll bearing positive view in Fig. 1 basket shapes.

The shape graph of Fig. 2 rollers 1 (is used for basket cage 5)

Embodiment

Embodiment 1

Eight novel double-row taper roll bearings in the basket shape of sequence number 1 in table 2.

See Fig. 1, Fig. 2, there are two single-row inner rings 2, a double-row outer-ring 4, set cone spacer 3 between two inner rings, it is inside and outside Multiple rollers 1 are set between circle, relative position is interior eight shapes between two row rollers, and is supported by basket cage 5.

Bearing appearance and size:Bearing bore diameter d is 160mm, and bearing outside diameter D is 290mm, and the element width B1 of bearing inner race 2 is 178mm, the width C 1 of bearing outer ring 4 are 144mm.With limit design method determine structural element size be：The roller diameter of bearing Dw is 37.159mm, and roller length is that L is 54.6mm, and it is 18 that roller sets quantity Z in circumferential each column, and roller semi-cone angle ψ For 2 ° 12 '.

Embodiment 2

Eight novel double-row taper roll bearings in the basket shape of sequence number 2 in table 2.

Except the middle (center) bearing appearance and size of table 2 is different with structural element value, remaining structure is identical with embodiment 1.

Bearing appearance and size:Bearing bore diameter d is 177.8mm, and bearing outside diameter D is 269.875mm, and the component of bearing inner race 2 is wide Degree B1 is 119.062mm, and the width C 1 of bearing outer ring 4 is 93.662mm.With limit design method determine structural element size be：Axle The roller diameter Dw held is 27.83mm, and roller length is that L is 35mm, and it is 23 that roller sets quantity Z in circumferential each column, and rolling Sub- semi-cone angle ψ is 1 ° 20 '.

Embodiment 3

Eight novel double-row taper roll bearings in the basket shape of sequence number 3 in table 2.

Bearing appearance and size:Bearing bore diameter d is 240mm, and bearing outside diameter D is 320mm, and the element width B1 of bearing inner race 2 is 105mm, the width C 1 of bearing outer ring 4 are 87mm.With limit design method determine structural element size be：The roller diameter Dw of bearing For 22.204mm, roller length is that L is 30mm, and it is 35 that roller sets quantity Z in circumferential each column, and roller semi-cone angle ψ is 52′。

Embodiment 4

Eight novel double-row taper roll bearings in the basket shape of sequence number 4 in table 2.

Bearing appearance and size:Bearing bore diameter d is 273.05mm, and bearing outside diameter D is 393.7mm, and the component of bearing inner race 2 is wide Degree B1 is 157.162mm, and the width C 1 of bearing outer ring 4 is 109.538mm.With limit design method determine structural element size be： The roller diameter Dw of bearing is 34.87mm, and roller length is that L is 43.9mm, and it is 28 that roller sets quantity Z in circumferential each column, with And roller semi-cone angle ψ is 1 ° 22 '.

Embodiment 5

Eight novel double-row taper roll bearings in the basket shape of sequence number 5 in table 2.

Bearing appearance and size:Bearing bore diameter d is 317.5mm, and bearing outside diameter D is 447.675mm, and the component of bearing inner race 2 is wide Degree B1 is 180.975mm, and the width C 1 of bearing outer ring 4 is 146.05mm.With limit design method determine structural element size be：Axle The roller diameter Dw held is 39.132mm, and roller length is that L is 55.3mm, and it is 29 that roller sets quantity Z in circumferential each column, with And roller semi-cone angle ψ is 1 ° 7 '.

Claims

1. eight novel double-row taper roll bearing in basket shape, there are two single-row inner rings (2), a double-row outer-ring (4), in two Cone spacer (3) is set between circle；Multiple rollers (1) are set between inside and outside circle, relative position is interior eight shapes between two row rollers, and is protected by basket shape Hold frame (5) support；It is characterized in that：Bearing bore diameter d, bearing outside diameter D, bearing inner race element width B1, the axle of five kinds of model bearings Bearing outer-ring width C 1, roller diameter Dw, roller length L, each column roller quantity Z and roller half cone angle ψ span difference For sequence number 1-5 number ranges in table 1；

Table 1

。

2. the eight novel double-row taper roll bearing in basket shape as described in claim 1, it is characterized in that the bearing of five kinds of sequence number bearings It is internal diameter d, bearing outside diameter D, bearing inner race element width B1, bearing outer ring element width C1, roller diameter Dw, roller length L, every Row roller quantity Z and roller half cone angle ψ value are respectively the numerical value of sequence number 1-5 in table 2；

Table 2