Radial roller bearing

Abstract

The radial roller bearing comprises a retainer and rollers, an annular groove is formed in the annular face of the retainer, the inner side walls of the two sides in the annular groove are annularly and equidistantly provided with the same number of inwards-folded flanges, the rollers are partially located in corresponding round holes in a sliding mode, and the surfaces of the tops of the rollers make sliding contact with the surfaces of the inwards-folded flanges at the corresponding positions. The infolding blocking edges are in an arc shape, the infolding blocking edges, the annular grooves and the corresponding round holes form a plurality of placing limiting spaces which are annularly distributed at equal intervals, and each placing limiting space corresponds to one roller. The retainer is reasonable in design, the inwards-folded flanges in the initial state are inwards bent to be in the arc state through a mold, the effect of locking the rollers is achieved, the mode that the rollers are locked through the inwards-folded flanges on the two sides is adopted, the structure occupied space is small, the purchasing and machining cost is low, rotation is flexible and stable, the inwards-folded flanges are beneficial to enhancing the overall load strength of the retainer, and the service life of the retainer is prolonged. And the requirements of products with small space and large load can be met.

Description

Technical Field

[0001] The utility model relates to the field of roller bearings, in particular to a radial roller bearing. Background Art

[0002] Roller bearings, a type of rolling bearing, are widely used in modern machinery. They rely on rolling contact between their main components to support rotating parts. Existing radial roller bearings generally use an inner and outer ring structure, which lacks flexibility and stability in roller rotation. The overall structure also occupies a large space, failing to meet the demand for products requiring high loads in a compact space. Utility Model Content

[0003] The purpose of the present utility model is to provide a radial roller bearing in order to solve the above problems.

[0004] The utility model achieves the above-mentioned purpose through the following technical scheme: a radial roller bearing, including a retainer and a roller, the retainer annular surface is provided with an annular groove, and the side walls on both sides of the annular groove are annularly and equidistantly provided with the same number of inward folding ribs, the roller part slides in the corresponding circular hole, and the top surface of the roller is in sliding contact with the corresponding surface of the inward folding rib, the inward folding rib is arc-shaped, and the inward folding rib, the annular groove and the corresponding circular hole form a plurality of annularly and equidistantly distributed placement limit spaces, each placement limit space corresponds to a roller.

[0005] Preferably, there are multiple circular holes, and the multiple circular holes are equidistantly arranged at the bottom of the annular groove.

[0006] Preferably, part of the roller extends beyond the circular hole, and the circular hole corresponds to the roller one-to-one.

[0007] Preferably, lubricating oil is applied to the contact points between the roller, the circular hole and the inner folding rib.

[0008] Compared with the existing technology, the difference is that the rollers are locked by using inward-folded ribs on both sides. The structure takes up little space, has low purchase and processing costs, and rotates flexibly and smoothly. The inward-folded ribs help to enhance the overall load strength of the cage, which can meet the needs of products with small space and large load. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0010] Figure 1It is a cross-sectional view of the overall structure of the utility model;

[0011] Figure 2 It is a partial structural sectional view of the entire utility model.

[0012] In the figure: 1, cage; 11, circular hole; 12, ring groove; 13, inward folding rib; 2, roller. DETAILED DESCRIPTION

[0013] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0014] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0015] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0016] See also Figure 1-2 As shown, a radial roller bearing includes a retainer 1 and a roller 2. The retainer 1 is provided with an annular groove 12 on its annular surface, and the side walls on both sides of the annular groove 12 are provided with the same number of inward folding ribs 13 at equal intervals in an annular manner. The roller 2 partially slides in the corresponding circular hole 11, and the top surface of the roller 2 is in sliding contact with the surface of the inward folding rib 13 at the corresponding position. The inward folding rib 13 is arc-shaped, and the inward folding rib 13, the annular groove 12 and the corresponding circular hole 11 form a plurality of annularly equidistantly distributed placement limit spaces, each placement limit space corresponds to a roller 2, and a plurality of circular holes 11 are provided, and a plurality of circular holes 11 are annularly equidistantly opened at the bottom of the annular groove 12.

[0017] Part of the roller 2 extends beyond the circular hole 11 , and the circular hole 11 corresponds to the roller 2 one-to-one; lubricating oil is applied to the contact points between the roller 2 , the circular hole 11 and the inner folding rib 13 .

[0018] When the present invention is in use, the roller 2 is first installed, and the inward folded rib 13 in the initial state is pressed inwardly into an arc state by a mold to achieve the effect of locking the roller. The installed bearing is then placed in a ∅53.010 standard ring gauge and rotated with a ∅54 inspection spindle to ensure flexible and stable rotation without obstruction and axial movement. In summary, the roller is locked by using inward folded ribs on both sides. The structure occupies a small space, has low purchase and processing costs, and rotates flexibly and smoothly. The inward folded ribs help to enhance the overall load strength of the retaining frame, which can meet the product requirements of small space and large load.

[0019] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations within the meaning and scope of the appended claims be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0020] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A radial roller bearing, characterized in that: The invention comprises a retainer (1) and a roller (2), wherein the retainer (1) is provided with an annular groove (12) on its annular surface, and the inner side walls of the annular groove (12) are provided with the same number of inner folding ribs (13) at equal intervals in an annular manner, and the roller (2) is partially slidably located in the corresponding circular hole (11), and the top surface of the roller (2) is in sliding contact with the surface of the corresponding inner folding rib (13), wherein the inner folding rib (13) is in an arc shape, and the inner folding rib (13) forms a plurality of annular equidistantly distributed placement limit spaces with the annular groove (12) and the corresponding circular hole (11), and each placement limit space corresponds to a roller (2).

2. A radial roller bearing according to claim 1, characterized in that: There are a plurality of circular holes (11), and the plurality of circular holes (11) are annularly and equidistantly opened at the bottom of the annular groove (12).

3. The radial roller bearing according to claim 1, characterized in that: Part of the roller (2) exceeds the circular hole (11), and the circular hole (11) corresponds to the roller (2) one by one.

4. The radial roller bearing according to claim 1, characterized in that: Lubricating oil is applied to the contact areas between the roller (2), the circular hole (11) and the inner folding rib (13).

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