CN207539196U

CN207539196U - A kind of separable cylinder roller bearing retainer in outer ring

Info

Publication number: CN207539196U
Application number: CN201721492552.4U
Authority: CN
Inventors: 苏玉达
Original assignee: Beijing Kunlun Bearing Co Ltd
Current assignee: Beijing Kunlun Bearing Co Ltd
Priority date: 2017-11-10
Filing date: 2017-11-10
Publication date: 2018-06-26
Anticipated expiration: 2027-11-10

Abstract

A kind of separable cylinder roller bearing retainer in outer ring, it, which includes, keeps frame body (6.1), with lid (6.2), rivet (5), pocket hole centre-to-centre spacing (D) that retainer internal diameter arranges one week with bearing roller along raceway is identical, retainer outer diameter is less than 2 4mm of diameter of bearing outer ring ball track, in the end face circumferentially equidistant boring pocket hole (6.11) for keeping frame body.Wherein, the diameter in pocket hole is slightly larger than roller diameter, and pocket depth is slightly larger than roller length.Wherein, rivet hole is bored in each end face for keeping the branch beam-ends of frame body, the uniform diameters of rivet hole are matched by selected rivet diameter and beaten between 2 4mm.The beneficial effects of the utility model are：Using the utility model retainer, more dress rollers on raceway can be made, the dynamic load rating and basic static capacity (BSC) rating of bearing are increased, particularly suitable for heavy-duty low-speed bearing.

Description

A kind of separable cylinder roller bearing retainer in outer ring

Technical field

The utility model is related to technical field of bearings, belong to a kind of separable cylinder roller bearing retainer in outer ring.

Background technology

The separable cylinder roller bearing in outer ring (see Fig. 1), it is by 1, one group of roller 2 of inner ring, can be detached with bearing Both ends there is no the outer ring 3 of rib, retainer 4 to form.

Cylinder roller bearing retainer has solid cage, nylon cages, steel plate punched retainer etc. a variety of, wherein in fact Body retainer is adaptable and be widely used because simple for process.Solid cage have be divided into it is with rivet and without rivet Two kinds.

Solid cage structure of the existing separable cylinder roller bearing in outer ring with rivet is as shown in Figure 2 and Figure 3.

4.1 in Fig. 2, Fig. 3 be existing solid cage, keeps frame body cylindrical, its end face makes A roller 2 can be packed into the same number of pocket hole 4.1.1 of roller, each pocket hole by having, and each two pocket has retainer between hole Strutbeam 4.1.2, is axially equipped with rivet through-hole 4.1.3 on strutbeam, the centre-to-centre spacing d of the rivet hole of retainer end face circle distribution with The centre-to-centre spacing D in the pocket hole of roller is identical.Separately there is retainer end cap 4.2, match in its end face circumferencial direction and the pocket hole on strutbeam Riveter nail hole, after roller is filled in pocket hole, with one group of rivet 5 by end cap riveted.Here it is the separable cylinder roller bearings of inner ring Retainer combines.The shortcomings that this retainer is：Retainer strutbeam is coarseer, has tied up the space of bearing roller, so as to not More rollers can be arranged, affect the load-bearing capacity of bearing.

Utility model content

The purpose of this utility model is to provide a kind of separable cylinder roller bearing retainer in outer ring, it can make bearing More dress rollers on raceway increase the dynamic load rating and basic static capacity (BSC) rating of bearing, particularly suitable for heavy-duty low-speed bearing.

To achieve the above object, the utility model takes following technical scheme：

A kind of separable cylinder roller bearing retainer in outer ring, it include keep frame body (6.1), with lid (6.2), Rivet (5), it is characterised in that：Pocket hole centre-to-centre spacing (D) that retainer internal diameter arranges one week with bearing roller along raceway is identical, keeps Frame outer diameter is less than the diameter 2-4mm of bearing outer ring ball track, in the end face circumferentially equidistant boring pocket hole for keeping frame body (6.11)。

Wherein, the diameter in pocket hole is slightly larger than roller diameter, and pocket depth is slightly larger than roller length.

Wherein, rivet hole is bored in each end face for keeping the branch beam-ends of frame body, the uniform diameters of rivet hole are in 2-4mm Between, match by selected rivet diameter and beat.

Its feature is：Compared with the existing solid cage with rivet, this retainer is constant in pocket hole centre-to-centre spacing D In the case of, the centre-to-centre spacing d of rivet hole 6.1.3 is increased, internal diameter, the outer diameter of retainer also increase.The position of each rivet hole exists The center of retainer strutbeam end face 6.1.2, such rivet 5 avoid pocket hole centre-to-centre spacing D, it is possible to reduce the width of retainer strutbeam Size is spent, bores several pocket holes more.This retainer will fill several rollers more than existing retainer, and roller quantity increases, axis The load-bearing capacity held also is improved.

The beneficial effects of the utility model are：Using the utility model retainer, more dress rollers on raceway can be made, The dynamic load rating and basic static capacity (BSC) rating of bearing are increased, particularly suitable for heavy-duty low-speed bearing.

Description of the drawings

Fig. 1 is the structure diagram of the separable cylinder roller bearing in outer ring；

Fig. 2 is the solid cage schematic diagram that the separable cylinder roller bearing in existing outer ring carries rivet；

Fig. 3 is Fig. 2 left view structural representations；

Fig. 4 is the solid cage structure schematic diagram with rivet of the utility model.

Fig. 5 is Fig. 4 left view structural representations；

Fig. 6 is the utility model retainer agent structure schematic diagram.

Fig. 7 is Fig. 6 left view structural representations.

Fig. 8 is the utility model retainer with lid structure diagram.

Fig. 9 is Fig. 8 left view structural representations.

Specific embodiment

Referring to shown in Fig. 4-Fig. 9：The holding frame body 6.1 of the utility model is made by brass, retainer internal diameter and bearing The roller centre that roller arranges one week along raceway is identical away from D, and retainer outer diameter is less than the diameter 2-4mm of bearing outer ring ball track. In the end face circumferentially equidistant boring pocket hole 6.11 for keeping frame body, the centre-to-centre spacing in pocket hole is D, and the diameter in pocket hole is slightly larger than roller Diameter, pocket depth are slightly larger than roller length so that roller being capable of flexible rotating in pocket hole.In the branch beam-ends for keeping frame body Each end face bore rivet hole, rivet hole centre-to-centre spacing be d, the uniform diameters of rivet hole can be between 2-4mm, by selected rivet Diameter, which is matched, to be beaten.

Referring to shown in Fig. 8, Fig. 9, the utility model retainer matches lid 6.2, and brass makes, and internal-and external diameter is real with retainer Body 6.1 is identical, and in end face, circumferencial direction matches riveter nail hole with retainer entity 6.1.

This retainer first keeps flat bearing inner race 1 on the table when assembling, and equidistant arrangement is with keeping on inner ring raceway The equal roller of frame pocket number of perforations, then retainer entity 6.1 is being had one end of strutbeam downward, it is inserted into along roller clearance, in this way, After checking that each pocket hole is equipped with roller, by bearing outer ring, roller and frame body is kept to overturn simultaneously so as to have the one side of strutbeam Upwards, it covers with 5 riveted of rivet of lid 6.2.

Using the utility model retainer, more dress rollers on raceway can be made, increase the dynamic load rating of bearing And basic static capacity (BSC) rating, particularly suitable for heavy-duty low-speed bearing.Such as the single row roller bearing that code name is N220, internal diameter are 100mm, outer diameter 180mm, wide 34mm.Existing solid cage can only fill 16Roller, dynamic load rating 204kN.Using the roller that 18 identical sizes can be filled after the retainer of this technology, dynamic load rating can be increased to 222kN, The bearing load ability of same model improves 8.8%.Basic static capacity (BSC) rating is increased to 308kN from original 274kN, improves 12.4%.

The above is the preferred embodiment of the utility model and its technical principle used, for the technology of this field It is any to be based on technical solutions of the utility model base in the case of the spirit and scope without departing substantially from the utility model for personnel Equivalent transformation, simple replacement on plinth etc. obviously change, and belong within scope of protection of the utility model.

Claims

1. a kind of separable cylinder roller bearing retainer in outer ring, it, which includes, keeps frame body (6.1), with lid (6.2), riveting It follows closely (5), it is characterised in that：Pocket hole centre-to-centre spacing (D) that retainer internal diameter arranges one week with bearing roller along raceway is identical, retainer Outer diameter is less than the diameter 2-4mm of bearing outer ring ball track, in the end face circumferentially equidistant boring pocket hole (6.11) for keeping frame body.

2. the separable cylinder roller bearing retainer in outer ring according to claim 1, it is characterised in that：The diameter in pocket hole Slightly larger than roller diameter, pocket depth is slightly larger than roller length.

3. the separable cylinder roller bearing retainer in outer ring according to claim 1 or 2, it is characterised in that：It is keeping Rivet hole is bored in each end face of the branch beam-ends of frame body, and the uniform diameters of rivet hole are between 2-4mm, by selected rivet diameter With beating.