CN206860685U

CN206860685U - Outer eight novel double-rows taper roll bearing

Info

Publication number: CN206860685U
Application number: CN201720759534.1U
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: 2018-01-09
Anticipated expiration: 2027-06-27

Abstract

Outer eight novel double-rows taper roll bearing, a biserial inner ring and the two single-row outer rings separated by outer ring spacer, multiple rollers are set between inside and outside circle, two row roller metas are set to outer eight shapes, and are 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 Dw, L, Z, the design of a kind of novel bearing 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 size bearing.Make support roller and working roll special bearing on Ferrous Metallurgy and coloured industry rolling mill.

Description

Outer eight novel double-rows taper roll bearing

(1) technical field：A kind of double-row conical bearing, belong to large size bearing.It is mainly used in iron and steel metallurgy and coloured row Make support roller and working roll special bearing on industry rolling mill.Belong to engineering element bearing class (F16C), the rolling class (B21B) of metal.

(2) background technology：

The double row tapered roller for bearing axial load of existing iron and steel metallurgy, coloured industry rolling mill or working roll dress Sub- bearing, because of bearing operating mode inclement condition, rotating speed is high, and the shock loading born is big, thus the service life of bearing is shorter, roll change Consumption accumulation non-cutting time length, user are reduction use cost, it is desirable to which bearing possesses the long-life.

(3) content of the invention：

The utility model proposes outer eight novel double-rows taper roll bearing, its purpose is exactly to provide the user the long-life Double-row conical bearing.Provide a kind of structural element numerical value of new double-row conical bearing.

The utility model is used for bearing designation 370630, wherein 37 be outer eight double-row conical bearings, 06 is random length Very little serial code name, 30 be bearing bore diameter d/5).Technical scheme provided by the utility model is a kind of nonstandard in this bearing designation New design.

Its technical scheme is as follows:

Outer eight novel double-rows taper roll bearing, two for having a biserial inner ring 2 and being separated by outer ring spacer 5 are single-row outer Circle 1；Multiple rollers (4) are set in inside and outside circle, two row roller relative positions are outer eight shape, and are supported by basket cage (3), its It is characterized in：A kind of bearing bore diameter d of model bearing, bearing outside diameter D, bearing inner race width B, bearing outer ring element width T, roller Diameter Dw, roller length L, each column roller quantity Z and roller half cone angle ψ span are the number range in table 1；Table 1

To obtain the optimum efficiency of double-row conical bearing, bearing bore diameter d, the bearing outside diameter of the model bearing in table 1 D, bearing inner race width B, bearing outer ring element width T, roller diameter Dw, roller length L, each column roller quantity Z and roller Half cone angle ψ value is respectively value in table 2.As leave out the numerical value that tolerance only has nominal dimension in table 1.Table 2

The utility model beneficial effect：This outer eight novel double-row taper roll bearing, " rolling bearing created using company Limit design method " designs, it is determined that a kind of above-mentioned structural element numerical value of model biserial conical bearing.The design realizes Under the conditions of meeting design strength and technique processing request, the roller diameter of design is maximum, and length is most long, the dynamic load rating of bearing It is worth highest, the mathematic(al) expectation of bearing is most long, meets the long life requirement of client, reduces the use cost of client.

(4) illustrate

The outer eight novel double-row taper roll bearing positive views of Fig. 1.

The shape graph of Fig. 2 rollers 4.

(5) embodiment

See Fig. 1, Fig. 2, the outer eight novel double-rows taper roll bearing of sequence number 1 in table 2, have a biserial inner ring 2 and by Two single-row outer rings 1 that outer ring spacer 5 separates, set multiple rollers 4 inside, between outer ring, and two row roller relative positions are outer eight shape.Rolling Son is supported by basket cage 3.

Appearance and size bearing bore diameter d is 150mm, and bearing outside diameter D is 224.5mm, and the width B of bearing inner race 2 is equal to outside bearing It is 73mm to enclose 1 element width T.With limit design method determine structural element size be：The roller diameter Dw of bearing is 20.294mm, roller length are that L is 23.2mm, and it is 25 that roller sets quantity Z in circumferential each column, and roller semi-cone angle ψ is 1 ° 38′。

Claims

1. outer eight novel double-row taper roll bearings, two for having a biserial inner ring (2) and being separated by outer ring spacer (5) are single-row Outer ring (1)；Multiple rollers (4) are set in inside and outside circle, two row roller relative positions are outer eight shape, and are propped up by basket cage (3) Support；It is characterized in that：A kind of bearing bore diameter d of model bearing, bearing outside diameter D, bearing inner race width B, bearing outer ring element width T, roller diameter Dw, roller length L, each column roller quantity Z and roller half cone angle ψ span are the numerical value model in table 1 Enclose；Table 1

A kind of 2. outer eight novel double-row taper roll bearings as described in claim 1, it is characterized in that bearing bore diameter of model bearing D, bearing outside diameter D, bearing inner race width B, bearing outer ring element width T, roller diameter Dw, roller length L, each column roller quantity Z and roller half cone angle ψ value are the numerical value of sequence number 1 in table 2；Table 2