Anti-impact roller bearing retainer and roller bearing

Abstract

The utility model relates to an anti-impact roller bearing retainer and a roller bearing, and belongs to the technical field of bearing retainers, the anti-impact roller bearing retainer comprises a retainer body, the retainer body comprises a first supporting ring, a second supporting ring and a plurality of isolation beams, and the first supporting ring and the second supporting ring are located on the two axial sides of the retainer body correspondingly; the isolation beams are arranged between the first supporting ring and the second supporting ring, every two adjacent isolation beams, the first supporting ring and the second supporting ring define a pocket used for containing rollers, the isolation beams are provided with reinforcing protruding parts extending inwards in the radial direction of the retainer body, and a reinforcing layer is arranged on the outer circumferential face of the retainer body. The local rigidity is enhanced through the reinforcing protruding parts of the isolation beam, the impact load is effectively resisted, and the reinforcing layer is arranged, so that the effect of enhancing the use strength is achieved when the retainer is used.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing retainer technical field, especially relates to an impact resistance roller bearing retainer and roller bearing. BACKGROUND

[0002] The main functions of the bearing retainer in the bearing are: guiding and driving the rolling elements to roll on the correct raceway; the retainer keeps the rolling elements equidistantly apart and uniformly distributed on the circumference of the raceway to prevent mutual collision and friction between the rolling elements during work.

[0003] At present, the existing roller retainer generally comprises two annular frames and a plurality of spacing beams connecting the two annular frames, and the spacing beams and the annular frames form a plurality of pockets for filling cylindrical rollers. However, the spacing beams of the existing retainer have insufficient strength and poor impact resistance, and when encountering a large impact, the spacing beams are prone to breakage, causing damage to the retainer. UTILITY MODEL CONTENTS

[0004] In view of the problems in the prior art, the utility model provides an impact resistance roller bearing retainer and roller bearing.

[0005] The utility model discloses a kind of impact resistance roller bearing retainers, including retainer body, and the retainer body includes first support ring, second support ring and multiple isolation beams, first support ring and second support ring are located at the axial two sides of retainer body respectively, isolation beam is arranged between first support ring and second support ring, adjacent two isolation beams and first support ring, second support ring form pocket for receiving roller, isolation beam has the reinforcing protruding portion extending along the radial direction of retainer body inward, and reinforcing layer is provided on the outer circumferential surface of retainer body.

[0006] Preferably, the side opposite to the first support ring and the second support ring is respectively provided with an annular groove, and an annular reinforcing ring is arranged in the annular groove.

[0007] Preferably, the side opposite to the first support ring and the second support ring is respectively provided with a plurality of arc grooves, and an arc reinforcing ring is arranged in the arc grooves.

[0008] Preferably, the retainer body is made of steel metal material.

[0009] Preferably, the reinforcing layer is made of high-strength carbon fiber material.

[0010] Preferably, the reinforcing layer is made of low-carbon steel material.

[0011] Preferably, the side away from the retainer body of the reinforcing layer is provided with a wear-resistant layer.

[0012] Preferably, the wear-resistant layer is made of a wear-resistant ceramic material.

[0013] Preferably, the first support ring and the second support ring are respectively provided with positioning protrusions in contact with the rollers.

[0014] A roller bearing comprising an inner ring and an outer ring, between which a bearing cage is mounted, characterized in that the bearing cage is the impact-resistant roller bearing cage described above.

[0015] The application has the following beneficial effects: 1. The reinforcing protrusions of the isolation beam enhance local rigidity, effectively resist impact load, and set a reinforcing layer to increase the use strength of the cage during use, improve the stress strength and overall anti-deformation capacity of the cage.

[0016] 2. The annular reinforcing ring and the arc-shaped reinforcing ring can strengthen the axial and radial rigidity of the support ring, inhibit deformation of the support ring, and further improve the impact resistance of the cage.

[0017] 3. The wear-resistant layer is made of ceramic material, which significantly reduces the friction and wear between the rollers and the cage, prolonging the service life of the bearing. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 1 is a structural schematic diagram of the embodiment 1 of the application;

[0019] Figure 2 FIG. 2 is a schematic view of A-A in FIG. 1; Figure 1

[0020] Figure 3 FIG. 3 is a structural schematic diagram of the annular reinforcing ring of the embodiment 1 of the application;

[0021] Figure 4 FIG. 4 is a structural schematic diagram of the embodiment 2 of the application.

[0022] Marked in the figure: 1, cage body, 2, reinforcing layer, 3, wear-resistant layer, 4, reinforcing protrusion, 5, annular reinforcing ring, 6, arc-shaped reinforcing ring, 11, first support ring, 12, second support ring, 13, isolation beam, 14, positioning protrusion, 15, pocket. DETAILED DESCRIPTION

[0023] ​In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that, in the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two; the directions or position relations indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model in indicating or implying that the devices or elements referred to must have a particular direction, be constructed in a particular direction and be operated, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] Please refer to Figures 1-3 The utility model embodiment 1 provides a kind of impact-resistant roller bearing cage, including cage body 1, cage body 1 includes first support ring 11, second support ring 12 and multiple isolation beams 13, first support ring 11 and second support ring 12 are located at the axial both sides of cage body 1 respectively, isolation beam 13 is arranged between first support ring 11 and second support ring 12, adjacent two isolation beams 13 are enclosed with first support ring 11, second support ring 12 to form the pocket 15 for receiving roller, strengthening protruding portion 4 is formed on isolation beam 13 and extends along the radial direction of cage body 1 inward, and strengthening layer 2 is arranged on the outer circumferential surface of cage body 1.

[0025] Among them, in combination with Figure 1 And Figure 3 It is shown that strengthening protruding portion 4 is semicylindrical, and the side opposite to first support ring 11 and second support ring 12 is respectively provided with annular groove, and annular reinforcing ring 5 is arranged in annular groove. Cage body 1 is made of steel metal material. Strengthening layer 2 is made of high-strength carbon fiber material. Annular reinforcing ring 5 is made of low-carbon steel material. High-strength carbon fiber prepreg is wound on the outer circumferential surface of cage body 1, and strengthening layer 2 is formed by high-temperature curing, and the thickness of strengthening layer 2 is 1-2mm.

[0026] In addition, in combination with Figure 2 It is shown that the first support ring 11 and the second support ring 12 are respectively provided with the positioning protruding portion 14 in contact with the roller.

[0027] The strengthening protruding portion 4 of the isolation beam 13 of the application enhances the local rigidity and effectively resists impact load. Strengthening layer 2 is made of high-strength material, which improves the overall anti-deformation ability of the cage and further improves the impact resistance.

[0028] Of course, the utility model is not limited to the above-mentioned embodiments, and the following provides several other embodiments based on the design concept of the utility model.

[0029] For example, in embodiment 2, unlike the above-mentioned embodiments, as shown in Figure 4 The first support ring 11 and the second support ring 12 are provided with a plurality of arc-shaped grooves on the side opposite to each other, and arc-shaped reinforcing rings 6 are arranged in the arc-shaped grooves.

[0030] For example, in embodiment 3, unlike the above-mentioned embodiments, as shown in Figure 1 The reinforcing layer 2 is made of low-carbon steel. The wear-resistant layer 3 is arranged on the side of the reinforcing layer 2 away from the cage main body. The wear-resistant layer 3 is made of wear-resistant ceramic material. The surface of the reinforcing layer 2 is coated with aluminum oxide ceramic by plasma spraying to form a 0.5-0.8mm thick wear-resistant layer 3.

[0031] The application also provides a roller bearing, which comprises an inner ring, an outer ring, a plurality of rollers and a bearing cage, the bearing cage is located between the inner ring and the outer ring and holds the rollers, and the bearing cage is the impact-resistant roller bearing cage described above. The reinforcing protrusion 4 does not contact the inner ring.

[0032] It should be noted that the above embodiments are only used to illustrate the utility model, but the utility model is not limited to the above embodiments, and any simple modification, equivalent change and modification according to the technical essence of the utility model of the above embodiments all fall within the protection scope of the utility model.

Claims

1. An impact-resistant roller bearing cage comprising a cage body (1), the cage body (1) comprising a first support ring (11), a second support ring (12), and a plurality of spacer beams (13), the first support ring (11) and the second support ring (12) being respectively located on the axial two sides of the cage body (1), the spacer beams (13) being arranged between the first support ring (11) and the second support ring (12), and two adjacent spacer beams (13) and the first support ring (11) and the second support ring (12) surrounding a pocket (15) for accommodating a roller, characterized in that, The isolation beam (13) has a reinforcing protrusion (4) extending radially inwardly from the cage body (1), and the outer circumferential surface of the cage body (1) is provided with a reinforcing layer (2).

2. An impact-resistant roller bearing cage according to claim 1, characterized in that: The opposite side of the first support ring (11) and the second support ring (12) is respectively provided with an annular groove, and the annular groove is provided with an annular reinforcing ring (5).

3. An impact-resistant roller bearing cage according to claim 1, characterized in that: The opposite side of the first support ring (11) and the second support ring (12) is respectively provided with a plurality of arc-shaped grooves, and the arc-shaped grooves are provided with arc-shaped reinforcing rings (6).

4. An impact-resistant roller bearing cage according to claim 1, characterized in that: The cage body (1) is made of steel metal material.

5. An impact-resistant roller bearing cage according to claim 1, characterized in that: The reinforcing layer (2) is made of high-strength carbon fiber material.

6. An impact-resistant roller bearing cage according to claim 1, characterized in that: The reinforcing layer (2) is made of low-carbon steel material.

7. An impact-resistant roller bearing cage according to claim 6, characterized in that: The side of the reinforcing layer (2) away from the cage body is provided with a wear-resistant layer (3).

8. An impact-resistant roller bearing cage according to claim 7, characterized in that: The wear-resistant layer (3) is made of wear-resistant ceramic material.

9. An impact-resistant roller bearing cage according to claim 7, characterized in that: The first support ring (11) and the second support ring (12) are respectively provided with a positioning protrusion (14) in contact with the roller.

10. A roller bearing comprising an inner ring and an outer ring between which a bearing cage is mounted, characterised in that, The bearing cage is the impact-resistant roller bearing cage of any one of claims 1-9.

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