CN1074983A

CN1074983A - Four-line conical roller bearing

Info

Publication number: CN1074983A
Application number: CN92114851A
Authority: CN
Inventors: 沃尔特·库福讷; 洛塔尔·迈德尔
Original assignee: SKF GmbH
Current assignee: SKF GmbH
Priority date: 1991-12-23
Filing date: 1992-12-23
Publication date: 1993-08-04
Anticipated expiration: 2007-12-23
Also published as: GB2262785B; DE4142802A1; FR2685410A1; FR2685410B1; GB2262785A; JPH05248430A; CN1038869C; JP3025594B2; GB9226672D0

Abstract

In the interior ring that several parts are formed on has axially and the four-line conical roller bearing of outer shroud, place the awl post between the bearer ring, preferably Li Bian roller is classified O shape structure arrangement as, and adjacent outside roller is classified the X-shaped structure arrangement as, and colonnade is placed between the orbit of interior ring and outer ring.

Form by the member that lacks than known enforcement structure for making tapered roller bearing, and the bearing play of when bearing assembles, setting up in advance, can not change with making a mistake, so for each roller row an independently outer ring is set, and for adjacent outside and the inside roller are listed as a common interior ring is set for total; And, outer ring of the inside and interior ring with end face respect to one another directly by putting, and on the end face of the outer ring of the end face that the outer ring of the inside deviates from each other mutually outside directly resting on.

Description

Four-line conical roller bearing

The present invention relates to a four-line conical roller bearing, the awl post that it has in the axial direction the interior ring be made up of several parts and outer shroud and settles between this bearer ring, wherein preferably the roller of the inside row are O shape structure arrangements, and adjacent outside roller is listed as into x shape structure arrangement, and in all placing between the track of the orbit of ring and outer ring.(x arranges to refer to, and the line of action of two row awl posts is a convergent towards the bearing medial axis, and O shape arranges to refer to, and the line of action of two row awl posts spreads towards the bearing medial axis).

This bearing is known.But, described as DE-OS3615343, interior and outer ring being separated from each other by annular apart from retainer.Like this, because the interior ring of band roller assembly just will be disassembled certainly for the cooperation and the adjusting bearing play of bearer ring, also just can damage independent member.Under the situation that the interior ring that has roller assembly end face respect to one another takes place to grind, abrasive dust dirt will arrive between bearing components, and bearing is on-stream to be damaged soon so that make.For avoiding this defective, in known bearing,, only be that the side of annular spacing retainer is finish grinded respectively for the cooperation of bearer ring.The shortcoming that this known bearing has is, this bearing is made up of the many members that must process specially, and, accurately annular spacing retainer of installing and motion ring can be changed when bearing is installed easily, therefore, by the bearing play that the spacing retainer is set up, after assembling, just no longer determine.

Task of the present invention is, a kind of four-line conical roller bearing that starts alleged type is provided, and it contains than the structural member that lacks in the prior art, and, give the bearing play of setting up earlier and after the bearing assembling, can not change basically.

This task, the present invention so solves, that is, for each roller row, an independent outer ring is set, and, a common interior ring is set for adjacent separately outside and the inside roller row, the outer ring of this inside and interior ring are all directly settled by ground mutually with end face respect to one another, and the end face that deviates from each other of the outer ring of the inside is directly to rest on the outer ring end face of outside.

Just can realize that by this structure the spacing retainer of annular needn't be arranged between single ring.Before bearer ring is coordinated assembling and bearing play adjusting, just can internally encircle and do final grinding, and connect into an integral unit with roller assembly.Cooperation and adjusting bearing play for bearer ring, for example between the roller of the inside row and corresponding bearer ring orbit, the end face respect to one another of ring outside the inside can be carried out correspondingly grinding, and can not damage the interior ring of the roller assembly that assembles.According to this, just can make bearing, on the full duration of interior ring, measure, keep a very width tolerance of narrow range, therefore, be used for for example threaded collar and the nut of the axial restraint of bearing, expensive structural member has just no longer needed, thereby can obtain a quite economic Production of bearing, simultaneously, also not have difficulty during assembling.

Advantage of the present invention will be described in the dependent claims.

Accompanying drawing has been represented a longitudinal section by bearing of the present invention,

Below, by an embodiment, describe the present invention in detail.

Accompanying drawing is represented the longitudinal section of a four-line conical roller bearing.

This four-line conical roller bearing is suitable for roll stand as roller bearing, is specially adapted to cold-peace hot strip mill machine row, and it comprises 1,2, four

outer rings

3,4,5,6 of two interior rings and roller body.Each

colonnade

8a, 8b, 8c, the awl post 7 of 8d are supported in the retainer 9 and leading.The orbit 10b of

ring

1,2 in the colonnade 8b of this inside, 8c are placed in O shape structure, ring 4 outside 10c and the inside, 5 orbit 11b, between the 11c, simultaneously, the colonnade 8a of outside, 8d and adjacent the

inside colonnade

8b, 8c become x shape structure to be placed in the orbit 10a of

interior ring

1,2,10b, 10c, 10d and

outer ring

3,4,5,6

orbit

11a, 11b, 11c is between the 11d.These bearing members can exchange according to the mounting point.The width tolerance of bearing is measured on the overall with regard to

interior ring

1,2, should be less than ± 0.25mm(millimeter).The outer ring 4,5 of this inside is directly leaned on mutually with

end face

12,13 respect to one another, simultaneously, the end face that deviates from each other 14 of ring 4,5 outside the inside, 15a is directly against the 14a of

outer ring

3,6 of outside, on 15.For this reason, the outer ring 4,5 of the inside and the

outer ring

3,6 of outside and

interior ring

1,2 all are provided with extension part 16 in end face side respect to one another, 16a, and 17,17a, they are to exceed

orbit

10b, 10c, 11a, 11b, 11c, 11d's on prolonging axially.Should

interior ring

1,2 can directly lean on mutually with

end face

18,19 respect to one another equally.And on the outer surface 20 of

outer ring

3,4,5,6, be provided with the part 21 of excision in the non-bearing zone.The outer ring 4 of this inside and 5 is provided with several and distributes the groove of settling 22 that radially extends along circumference on the end face of both sides, they play the effect of bearing play and perfusion oiling agent; In addition, their (grooves) turn in the inner end that forms the hole each other and are arranged to a bigger rake 23, thereby produce an additional finish storage chamber in bearing.

Interior ring

1,2 has been equipped with in the duct from

end face

18,19,25,26 rake 24, and by them, the structural member that just can realize fluid-tight engagement becomes easy when changing assembling.In addition,

ring

1,2 is equipped with several lubrication grooves 27 that distributes along circumference in this on

end face side

18,19,25,26, and is equipped with spiral chute 29 to hold the particle under lubricant oil and the mill in columnar hole.

The present invention is not confined on the described embodiment.The structural change of member separately undoubtedly all may be within the scope of the present invention.

Claims

1, four-line conical roller bearing, the awl post that has interior ring that several in the axial direction parts form and outer shroud and between bearer ring, settle, wherein, preferably the roller of the inside row are O shape structure arrangements, and adjacent outside roller is listed as into x shape structure arrangement, and in all placing between the track of the orbit of ring and outer ring, it is characterized in that:

(8c 8d) is provided with an independent outer ring (3 for 8a, 8b for each roller row, 4,5,6), and a common interior ring (1,2) is set, the outer ring (4 of this inside for adjacent outside and the inside roller row for total, 5) and interior ring (1,2) all with end face (12,13 respect to one another, 18,19) directly by putting, and ring (4 outside the inside, the end face that 5) deviates from each other (14,15a) be the end face (14a that directly leans against the outer ring (3,6) of outside.15) settle.

2, by the described four-line conical roller bearing of claim 1, it is characterized in that: end face (14,14a, 15,15a, 18,19) be to be placed in interior ring (1,2) and outer ring (3,4,5,6) the portion that extends axially (16,16a, 17, on 17a), above-mentioned extension part is to stretch out orbit (10b, 10d, 11a, 11b, 11c, 11d).

3, it is characterized in that by claim 1 or 2 described four-line conical roller bearings:

The outer ring (4,5) of the inside forms in the structure in hole mutually at it, and the part that turns to is arranged to bigger rake (23).

4, by the four-line conical roller bearing of one of claim 1 to 3, it is characterized in that:

Interior ring (1,2) is equipped with the rake (24) that comes from end face (18,19,25,26) in the duct.

5, by the four-line conical roller bearing of one of claim 1-4, it is characterized in that:

All bearing members on the mounting point of correspondence, are arranged to interchangeable.

6, by the four-line conical roller bearing of one of claim 1-5, it is characterized in that:

The width tolerance of bearing is measured on the full duration of interior ring (1,2), less than ± 0.25mm.