CN207539184U

CN207539184U - A kind of separable cylinder roller bearing retainer of inner ring

Info

Publication number: CN207539184U
Application number: CN201721492563.2U
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 of inner ring, it, which includes, keeps frame body (6.1), with lid (6.2), rivet (5), pocket hole centre-to-centre spacing (D) that retainer outer diameter arranges one week with bearing roller along raceway is identical, retainer internal diameter is greater than 2 4mm of diameter of bearing inner race raceway, in the outer-diameter 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 of inner ring

Technical field

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

Background technology

The separable cylinder roller bearing of inner ring (see Fig. 1), it is that do not have being detached with bearing for rib by both ends Inner ring 1, one group of roller 2, outer ring 3, retainer 4 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 of inner 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, the pocket hole on its end face circumferencial direction and strutbeam, which is matched, to be beaten Rivet 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 to protect Hold frame combination.The shortcomings that this retainer is：Retainer strutbeam is coarseer, has tied up the space of bearing roller, thus cannot More rollers are 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 of inner 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 of inner 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 outer diameter arranges one week with bearing roller along raceway is identical, keeps Frame internal diameter is greater than the diameter 2-4mm of bearing inner race raceway, 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 reduced, internal diameter, the outer diameter of retainer also reduce.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 of inner ring；

Fig. 2 is the solid cage schematic diagram that the separable cylinder roller bearing of existing inner 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 outer diameter and bearing The roller centre that roller arranges one week along raceway is identical away from D sizes, and retainer internal diameter is greater than the diameter 2- of bearing inner race raceway 4mm.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 for keeping frame body Rivet hole is bored in each end face of beam-ends, and rivet hole centre-to-centre spacing is d, and the uniform diameters of rivet hole can be between 2-4mm, by selected Rivet diameter, which is matched, beats.

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, matches riveter nail hole with retainer entity 6.1 on circumference.

This retainer first keeps flat bearing outer ring 3 on the table when assembling, and equidistant arrangement is with keeping on outer ring raceway The equal roller of frame pocket number of perforations, then have one end of strutbeam downward retainer entity 6.1, it is inserted into along roller clearance, in this way, inspection Look into after each pocket hole is equipped with roller, by bearing outer ring, roller and frame body kept to overturn simultaneously so that have the one of strutbeam towards On, 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 1621 × 24 roller, 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, Load-bearing capacity 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 of inner 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) size that retainer outer diameter arranges one week with bearing roller along raceway is identical, protects The diameter 2-4mm that frame internal diameter is greater than bearing inner race raceway is held, in the outer-diameter end face circumferentially equidistant boring pocket for keeping frame body Hole (6.11).

2. the separable cylinder roller bearing retainer of inner 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 of inner 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.