CN206918083U

CN206918083U - New four-line column roller bearing with back-up ring

Info

Publication number: CN206918083U
Application number: CN201720768741.3U
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

New four-line column roller bearing with back-up ring, there are two double-row outer-rings, two biserial inner rings, two outer ring ragged edges share two side bumper circles, there is 1 guide ring between two outer rings, multiple rollers are set between outer ring and inner ring, roller is supported with post cage.The utility model is used for bearing designation FCDP, be four kinds of this bearing designation it is nonstandard it is new be designed as solving the problems such as existing bearing impact load is big, and 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 of a kind of novel bearing.The 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, Bearing dynamic rated load value highest, and bearing mathematic(al) expectation is most long.Meet requirement of the client to bearing long-life and reduction use cost.Belong to extra large size bearing.Make support roller and working roll special bearing on steel and nonferrous metallurgy industry rolling mill.

Description

New four-line column roller bearing with back-up ring

(1) technical field：A kind of four-line column roller bearing, belong to extra large size bearing.It is mainly used in steel and nonferrous metallurgy Make support roller and working roll special bearing on industry rolling mill.Belong to engineering element bearing class (F16C), the rolling class of metal (B21B)。

(2) background technology：

The four-line column roller bearing of existing iron and steel metallurgy, coloured 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.

(3) content of the invention：

The utility model proposes the new four-line column roller bearing with back-up ring, its purpose is exactly to provide the user longevity The four-line column roller bearing of life.Provide the appearance and size and structural element numerical value of four kinds of new four-line column roller bearings.

The utility model is used for bearing designation FCDP.FCDP represents double inner ring four-row cylindrical roller axles of the outer ring with loose rib Hold.The technical solution of the utility model there is provided four kinds of nonstandard new designs in this bearing designation.

The technical scheme of use is as follows：

New four-line column roller bearing with back-up ring, there are two double-row outer-rings 1, two biserial inner rings 2, two biserials Outer ring ragged edge shares two side bumper circle 1a, has 1 guide ring 1b between two double-row outer-rings, between double-row outer-ring and biserial inner ring If multiple rollers 4, roller post cage 5 support；It is characterized in that:The new four-line column roller bearing with back-up ring, Scheme provided with four sequence numbers, bearing bore diameter d, bearing outside diameter D, bearing width T (B), the bearing roller of four sequence number bearings Diameter Dw, roller length L, each column roller quantity Z spans are respectively number range in table 1.

Table 1

。

To obtain the optimum efficiency of four-line column roller bearing, the new four-line column roller bearing of every kind of model in table 1 Bearing bore diameter d, bearing outside diameter D, bearing width T (B), roller diameter Dw, roller length L, each column roller quantity Z numerical value point The numerical value in sequence number 1-4 in table 2 is not taken.As leave out tolerance in table 1 there was only nominal dimension and optimize the number of each column roller quantity Value.

Table 2

。

The utility model beneficial effect：This new four-line column roller bearing with back-up ring, using " rolling for company's original creation Bearing limit design method " designs, it is determined that the structural element numerical value of the above-mentioned row cylindrical bearing of four kinds of sequence numbers 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, bearing it is specified Dynamic load charge values 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

New four-line column roller bearing positive views of the Fig. 1 with back-up ring

The shape graph of Fig. 2 rollers 4.

(5) embodiment

Embodiment 1：

New four-line column roller bearing of the sequence number 1 with back-up ring.

See Fig. 1, there are two double-row outer-rings 1, two biserial inner rings 2, two double-row outer-ring ragged edges share two side bumpers 1a is enclosed, has 1 guide ring 1b between two double-row outer-rings, multiple rollers 4, roller branch are set between double-row outer-ring and biserial inner ring Post retainer 3 supports.Post cage 3 is that each center of roller 4 has individual axially extending bore, passes through a pillar 3.1 in through hole, often Root pillar two is connected and formed with two rounded washers 3.2 respectively.

See Fig. 1, bearing appearance and size:Bearing bore diameter d is 420mm, and bearing outside diameter D is 600mm, and bearing width T (B) is 440mm；(T is bearing outer ring element width here, and B is that bearing inner race element width is 440mm, i.e. T=B).Use the axis of rolling The structural element value of the new four-line column roller bearing with back-up ring for holding limit design method determination is：See Fig. 2 and table 2, roll Sub- diameter Dw is 47mm, and roller length L is 83.5mm, is 32 in circumferential each column roller quantity Z.

Embodiment 2:

New four-line column roller bearing of the sequence number 2 with back-up ring.

For the present embodiment 2 in addition to following characteristics, remaining feature is identical with embodiment 1.See Fig. 1, bearing appearance and size：Axle It is 440mm to hold internal diameter d, and bearing outside diameter D is 620mm, and bearing width T (B) is 450mm；(T=B here).With rolling bearing pole The structural element value of new four-line column roller bearing that limit design method determines is：See Fig. 2 and table 2, roller diameter Dw is 50mm, roller length are that L is 87mm, are 31 in circumferential each column roller quantity Z.

Embodiment 3：

New four-line column roller bearing of the sequence number 3 with back-up ring.

For the present embodiment 3 in addition to following characteristics, remaining feature is identical with embodiment 1.See Fig. 1, bearing appearance and size：Axle It is 510mm to hold internal diameter d, and bearing outside diameter D is 760mm, and bearing width T (B) is 550mm；(T=B here).With rolling bearing pole The structural element value of new four-line column roller bearing that limit design method determines is：See Fig. 2 and table 2, roller diameter Dw is 68mm, roller length are that L is 101.5mm, are 28 in circumferential each column roller quantity Z.

Embodiment 4:

New four-line column roller bearing of the sequence number 4 with back-up ring.

For the present embodiment 4 in addition to following characteristics, remaining feature is identical with embodiment 1.See Fig. 1, bearing appearance and size：Axle It is 550mm to hold internal diameter d, and bearing outside diameter D is 800mm, and bearing width T (B) is 520mm；(T=B here).With rolling bearing pole The structural element value of new four-line column roller bearing that limit design method determines is：See Fig. 2 and table 2, roller diameter Dw is 69mm, roller length are that L is 95.5mm, are 29 in circumferential each column roller quantity Z.

Claims

1. the new four-line column roller bearing with back-up ring, there are two double-row outer-rings (1), two biserial inner rings (2), two double Row outer ring ragged edge shares two side bumper circles (1a), has 1 guide ring (1b) between two double-row outer-rings, in double-row outer-ring and biserial Multiple rollers (4) are set between inner ring, roller is supported with post cage (5)；It is characterized in that:The new four row cylinder with back-up ring Roller bearing is provided with four sequence numbers, the bearing bore diameter d of four sequence number bearings, bearing outside diameter D, bearing width T (B), bearing rolling Sub- diameter Dw, roller length L, each column roller quantity Z spans are respectively number range in table 1；

Table 1

。

2. the new four-line column roller bearing with back-up ring as described in claim 1, it is characterized in that:Four sequence number bearings Bearing bore diameter d, bearing outside diameter D, bearing width T (B), bearing roller diameter Dw, roller length L, each column roller quantity Z values point Numerical value that Wei be in table 2；

Table 2

。