CN208281356U - A kind of cylinder roller bearing - Google Patents

Abstract

The utility model provides a kind of cylinder roller bearing, including outer ring, inner ring, and even rows roll column, at least one retainer；The rolling channel that accommodating rolls column is offered on the medial surface of outer ring, rolling column, which is configured between outer ring and inner ring and is kept frame, to be kept；Retainer includes symmetrically arranged two annular bodies, and the several of two annular bodies of connection axially penetrate through the prick post for rolling column；One end of prick post is welded and fixed with annular body, and the other end and annular body are spirally connected fixation；Annular body forms the anchor ring and circular conical surface being arranged from inside to outside towards the side for the circular end face for rolling column.A kind of revealed cylinder roller bearing of the utility model, the reliability and stability after improving cylinder roller bearing assembly significantly, reduces the abrasion between retainer and rolling element, improves the service life of cylinder roller bearing.

Description

A kind of cylinder roller bearing

Technical field

The utility model relates to technical field of bearings, are more particularly to a kind of cylinder roller bearing.

Background technique

For back lining bearing usually by inner ring, the retainer between inner ring and outer ring is arranged in outer ring, and is kept frame and is received The rolling element of appearance forms.Retainer is the partly all or part of rolling element of package, and the important part moved therewith.In milling train In used back lining bearing, usually using roller bearing, columned rolling element passes through longitudinal perforative pillar and retainer Connection, realizes rolling to limit rolling element between retainer.

It is assembled currently, generalling use screw connection manner between retainer and columned rolling element.Such guarantor Holding frame although can be realized after some rolling element is worn, can be by resolution stand, to unload the rolling element of damage.But The retainer of above structure is for there is assembly fastness inadequate technical problem when the bearing that weight is more than 300 kilograms.Work as dress When the both ends end of the roll shaft of the milling train of the bearing installation with above-mentioned retainer may there is a phenomenon where retainer and pillars to loosen, It falls apart so as to cause back lining bearing.

Simultaneously as rolling element is set on mandrel in back lining bearing and forms inner ring and when outer ring mutually rolls, Rolling element can be moved left and right along its axial direction, so as to cause occurring acutely to rub between the circular end face and retainer of rolling element It wipes, wears so as to cause retainer and rolling element, be greatly reduced so as to cause back lining bearing service life.

In view of this, it is necessary to back lining bearing in the prior art be improved, to solve the above problems.

Utility model content

The purpose of this utility model is that a kind of cylinder roller bearing is disclosed, after improving cylinder roller bearing assembly Reliability and stability, and lower the abrasion between retainer and rolling element, improve the service life of cylinder roller bearing.

To achieve the above object, the utility model provides a kind of cylinder roller bearing, comprising: outer ring, inner ring, even rows Roll column, at least one retainer；The rolling channel that accommodating rolls column, the rolling column quilt are offered on the medial surface of the outer ring It is configured between outer ring and inner ring and is kept by the retainer；The retainer includes symmetrically arranged two cyclic annular sheets Body, and the several of two annular bodies of connection axially penetrate through the prick post for rolling column；One end of the prick post and annular body are welded Connect fixation, the other end and annular body are spirally connected fixation；The annular body towards roll column circular end face side formed by The anchor ring and circular conical surface being arranged from inside to outside.

As a further improvement of the utility model, between the end for rolling column and the anchor ring of two annular bodies Form the spacing of 0.5~1mm.

The inner ring is split type structure as a further improvement of the utility model,.

The angle between the circular conical surface and the circular end face for rolling column is 30 as a further improvement of the utility model, Degree.

The lateral surface of the annular body and outer ring are formed between 1~5mm as a further improvement of the utility model, Gap.

The depth of the rolling channel is roll column radius 1/3 as a further improvement of the utility model,.

Compared with prior art, the utility model has the beneficial effects that a kind of revealed cylindrical roller of the utility model Bearing, the reliability and stability after cylinder roller bearing assembly can be improved significantly, reduce retainer and rolling element it Between abrasion, to improve the service life of cylinder roller bearing.

Detailed description of the invention

Fig. 1 is a kind of axial semi-cutaway of cylinder roller bearing of the utility model；

Fig. 2 is the enlarged drawing in Fig. 1 at label A.

Specific embodiment

The utility model is described in detail in each embodiment shown in reference to the accompanying drawing, but it should be stated that, These embodiments are not limitation of the utility model, those of ordinary skill in the art according to these embodiments made by function Energy, method or equivalent transformation or substitution in structure, belong within the protection scope of the utility model.

It please join a kind of specific embodiment of Fig. 1 Yu a kind of cylinder roller bearing of the utility model illustrated in fig. 2.At this In embodiment, the cylinder roller bearing, comprising: outer ring 1, inner ring 2, even rows roll column 4, at least one retainer 3.It rolls Column 4 is configurable to two rows, four rows, six rows or more.Inner ring 2 be centrally formed for mandrel (not shown) it is longitudinally perforative in Empty channel 100.Inner ring 2 and mandrel, which are formed, to be interference fitted.

The rolling channel 101 that accommodating rolls column 4 is offered on the medial surface of outer ring 1.Each row is in relative to hollow channel 100 The rolling column 4 being circular layout is configured between outer ring 1 and inner ring 2 and is kept by the retainer 3.Specifically, in this reality It applies in mode, is opened up on the medial surface of outer ring 1 there are two rolling channel 101 disposed in parallel.In the present embodiment, the inner ring 2 For split type structure, those skilled in the art can be arrived with reasonable prediction, which can also be configured to one such as outer ring 1 Monolithic construction.The circular end face 41 for rolling column 4 extends vertically the fin of setting set by outer ring 1 to hollow channel 100 102 are stopped.

Retainer 3 includes symmetrically arranged two annular bodies 31, and several axial directions of two annular bodies 31 of connection Through the prick post 32 for rolling column 4.One end 321 of prick post 32 is welded and fixed with annular body 31, the other end 322 and annular body 31 Be spirally connected fixation.Annular body 31 towards the side for the circular end face 41 for rolling column 4 formed the anchor ring 313 that is arranged from inside to outside with Circular conical surface 312.Roll the spacing that 0.5~1mm is formed between the end of column 4 and the anchor ring 313 of two annular bodies 31.

Since along the axially extending direction of hollow channel 100 slight indulge occurs for cylinder roller bearing in actual use To movement, therefore the spacing by forming 0.5~1mm between the anchor ring 313 of the end and two annular bodies 31 that roll column 4 Technological means, reduce roll column 4 circular end face 41 and retainer 3 medial surface, be especially reduction of the circle of retainer 3 Friction between anchor ring 313, to improve the service life of the cylinder roller bearing.

Meanwhile in the present embodiment, the angle between circular conical surface 312 and the circular end face 41 for rolling column 4 is 30 degree.Ring The lateral surface 310 of shape ontology 31 and outer ring 1 form the gap of 1~5mm, column 4 are rolled to be conducive to lubricating oil and enter, to play Good lubricating action.The depth of rolling channel 101 is roll 4 radius of column 1/3.

Join shown in Fig. 2, in the present embodiment, a ring through hole is set in an annular body 31 in each retainer 3 311, the inner wall of through-hole 311 forms internal screw thread 315, and passes through external screw thread set by internal screw thread 315 and 32 one end 322 of prick post It is spirally connected, prick post 32 and the annular body 31 is reliably connected.Side shape of the annular body 31 towards the circular end face 41 for rolling column 4 At anchor ring 313, circular conical surface 312, lateral surface 310, the fillet surface 314 being arranged from inside to outside.Lubricating oil can pass through lateral surface 310 It is formed by annular gap between outer ring 1, enters and rolls between column 4, play lubricant effect.

A kind of revealed cylinder roller bearing of present embodiment, improve significantly cylinder roller bearing assembly after can By property and stability, the abrasion between retainer and rolling element is reduced, to improve the service life of cylinder roller bearing.

Tool of the series of detailed descriptions listed above only for the feasible embodiment of the utility model Body explanation, they are all without departing from made by the utility model skill spirit not to limit the protection scope of the utility model Equivalent implementations or change should be included within the scope of protection of this utility model.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (6)

1. a kind of cylinder roller bearing characterized by comprising outer ring (1), inner ring (2), even rows roll column (4), at least one A retainer (3)；The rolling channel (101) that accommodating rolls column (4), the rolling column are offered on the medial surface of the outer ring (1) (4) it is configured between outer ring (1) and inner ring (2) and is kept by the retainer (3)；The retainer (3) includes symmetrical Two annular bodies (31) being arranged, and the several of two annular bodies (31) of connection axially penetrate through the prick post for rolling column (4) (32)；One end of the prick post (32) is welded and fixed with annular body (31), and the other end and annular body (31) are spirally connected fixation；Institute It states annular body (31) and forms the anchor ring (313) being arranged from inside to outside towards the side for the circular end face (41) for rolling column (4) With circular conical surface (312).

2. cylinder roller bearing according to claim 1, which is characterized in that the end for rolling column (4) and two rings The spacing of 0.5~1mm is formed between the anchor ring (313) of shape ontology (31).

3. cylinder roller bearing according to claim 1, which is characterized in that the inner ring (2) is split type structure.

4. cylinder roller bearing according to claim 1, which is characterized in that the circular conical surface (312) and rolling column (4) Angle between circular end face (41) is 30 degree.

5. cylinder roller bearing according to claim 1, which is characterized in that the lateral surface of the annular body (31) (310) gap of 1~5mm is formed with outer ring (1).

6. cylinder roller bearing according to claim 1, which is characterized in that the depth of the rolling channel (101) is to roll The 1/3 of column (4) radius.