High-bearing-capacity anti-vibration sealing roller bearing

Abstract

The utility model discloses a high-bearing-capacity anti-vibration sealing roller bearing and relates to the technical field of bearings. The utility model relates to a roller bearing, in particular to a roller bearing, and aims to solve the problems that the existing roller bearing is low in working stability due to poor sealing performance of the bearing under the working condition of serious pollution, and the bearing capacity is poor due to the fact that the roller bearing is provided with a retainer. Under the working condition of serious pollution, the two ends between the inner surface of the outer ring and the outer surface of the inner ring are each provided with one sealing cover, the two ends of the inner surface of the outer ring are each provided with one annular locking point groove, and the locking point protrusions on the outer surface of the annular steel framework are connected with the annular locking point grooves in the inner wall of the outer ring in a matched mode, so that the sealing covers are prevented from falling off due to vibration; the sealing performance of the bearing is improved; the two ends of the outer surface of the circumference of the inner ring are respectively provided with one stop groove, the baffle ring is embedded in each stop groove, a traditional retainer is replaced, the number of rollers in the bearing is increased, and the bearing capacity of the bearing is further improved. The bearing is suitable for the technical field of bearings.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a high-load-bearing, vibration-resistant sealed roller bearing. Background Art

[0002] Currently, rolling bearings in large-scale machinery and equipment operate in extremely harsh conditions. They must withstand not only high load capacities but also significant impact loads during adjustment. In heavily polluted working environments, bearings require additional sealing structures. These environments also experience significant impact loads, making it difficult for conventional seals to remain in place and prone to falling off during operation. This necessitates optimizing the bearing's internal structure, upgrading the seal structure, and improving its stability.

[0003] A piece of equipment uses cylindrical roller bearings with heavy loads, which ordinary cylindrical roller bearings cannot meet. Therefore, a cageless, full-fill cylindrical roller bearing is required to increase the load capacity by increasing the number of rolling elements. Cylindrical roller bearings are separable bearings, so the internal structure needs to be optimized to prevent the inner ring from moving and interfering with the seal structure.

[0004] In summary, under working conditions with relatively serious pollution, existing roller bearings have poor sealing performance, which leads to low working stability of the bearings. In addition, roller bearings all contain cages, which leads to poor load-bearing capacity. Utility Model Content

[0005] The utility model proposes a high-load and vibration-resistant sealed roller bearing to solve the problem that the existing roller bearings have poor sealing performance under working conditions with relatively serious pollution, resulting in low bearing stability, and the roller bearings all contain cages, which in turn leads to poor bearing capacity.

[0006] The utility model discloses a high-load-bearing anti-vibration sealed roller bearing, the specific structure of which includes an outer ring 1, an inner ring 2, a sealing cover 3, a retaining ring 4 and a roller;

[0007] A retaining groove is machined at each end of the inner ring 2 along its circumferential outer surface, and a retaining ring 4 is embedded in each retaining groove. The outer ring 1 is sleeved on the outer surface of the inner ring 2, and a roller channel is machined in the middle of the inner surface of the outer ring 1 along the circumferential direction. Multiple rollers are arranged between the inner wall of the roller channel on the inner surface of the outer ring 1 and the outer surface of the inner ring 2, and the rollers are arranged between the two retaining rings 4 on the outer surface of the inner ring 2. A sealing cover 3 is respectively provided at both ends between the inner surface of the outer ring 1 and the outer surface of the inner ring 2, and the sealing cover 3 is sleeved on the inner ring 2;

[0008] Furthermore, the edges of both ends of the inner hole of the outer ring 1 are respectively processed with guide surfaces 1-1;

[0009] Furthermore, the sealing cover 3 includes an annular steel frame 3-1 and a sealing rubber 3-2; the cross-section of the annular steel frame 3-1 is M-shaped, and a layer of sealing rubber 3-2 is provided on the outer surface of the annular steel frame 3-1, and a sealing rubber ring is provided along the circumferential direction at the edge of the inner hole of the annular steel frame 3-1, and the sealing rubber ring is integrally provided with the sealing rubber 3-2 on the outer surface of the annular steel frame 3-1;

[0010] Furthermore, the bottom end of the outer surface of the annular steel skeleton 3-1 is evenly provided with a plurality of locking point protrusions along the circumferential direction, and the height H of the locking point protrusions is 0.3 mm;

[0011] Furthermore, an annular locking groove 1-2 is processed at each end of the inner surface of the outer ring 1, and the locking protrusion on the outer surface of the annular steel skeleton 3-1 is matched with the annular locking groove 1-2 on the inner wall of the outer ring 1;

[0012] Furthermore, the sealing rubber ring at the inner ring of the sealing cover 3 is connected with the inner ring 2 by interference fit, and the interference is 0.2mm;

[0013] Furthermore, the outer surface of the annular steel skeleton 3-1 and the inner surface of the outer ring 1 are connected by interference fit, and the interference is 0.1 mm;

[0014] Furthermore, in working conditions with severe pollution, a sealing cover 3 is provided at each end between the inner surface of the outer ring 1 and the outer surface of the inner ring 2. An annular locking groove 1-2 is machined at each end of the inner surface of the outer ring 1, and the locking protrusion on the outer surface of the annular steel skeleton 3-1 is matched with the annular locking groove 1-2 on the inner wall of the outer ring 1 to prevent the sealing cover 3 from falling off due to vibration, thereby improving the sealing performance of the bearing itself.

[0015] The bearing of the present application adopts an inner ring 2 with a retaining groove processed at both ends of the outer surface of the circumference. A retaining ring 4 is embedded in the interior of each retaining groove, replacing the traditional retaining frame and increasing the number of rollers inside the bearing, thereby improving the bearing capacity; and when the inner ring 2 moves, it prevents the sealing cover 3 from falling off due to force.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The utility model overcomes the shortcomings of the existing technology. Under seriously polluted working conditions, a sealing cover is provided at both ends between the inner surface of the outer ring and the outer surface of the inner ring, and an annular locking groove is processed at both ends of the inner surface of the outer ring. The locking protrusion on the outer surface of the annular steel frame is matched with the annular locking groove on the inner wall of the outer ring to prevent the sealing cover from falling off due to vibration, thereby improving the sealing performance of the bearing itself.

[0018] 2. The utility model overcomes the shortcomings of the existing technology. A retaining groove is machined at both ends of the outer surface of the inner ring along the circumference. A retaining ring is embedded in each retaining groove, replacing the traditional retaining frame. The number of rollers inside the bearing is increased, thereby improving the bearing capacity of the bearing; and when the inner ring moves, the sealing cover is prevented from falling off due to force. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a main sectional view of a high-load, vibration-resistant sealed roller bearing described in the utility model;

[0020] Figure 2 This is a main cross-sectional view of the outer ring of a high-load-bearing, vibration-resistant sealed roller bearing described in the utility model;

[0021] Figure 3 It is a main sectional view of a sealing cover in a high-load-bearing and vibration-resistant sealed roller bearing described in the utility model. DETAILED DESCRIPTION

[0022] Specific implementation method 1: Combination Figures 1 to 3 This embodiment describes a high-load, vibration-resistant sealed roller bearing, the specific structure of which includes an outer ring 1, an inner ring 2, a sealing cover 3, a retaining ring 4 and a roller;

[0023] A retaining groove is machined at each end of the inner ring 2 along its circumferential outer surface, and a retaining ring 4 is embedded in each retaining groove. The outer ring 1 is sleeved on the outer surface of the inner ring 2, and a roller channel is machined in the middle of the inner surface of the outer ring 1 along the circumferential direction. Multiple rollers are arranged between the inner wall of the roller channel on the inner surface of the outer ring 1 and the outer surface of the inner ring 2, and the rollers are arranged between the two retaining rings 4 on the outer surface of the inner ring 2. A sealing cover 3 is respectively provided at both ends between the inner surface of the outer ring 1 and the outer surface of the inner ring 2, and the sealing cover 3 is sleeved on the inner ring 2;

[0024] In this specific embodiment, under severely polluted working conditions, a sealing cover 3 is provided at each end between the inner surface of the outer ring 1 and the outer surface of the inner ring 2. An annular locking groove 1-2 is machined at each end of the inner surface of the outer ring 1. The locking protrusions on the outer surface of the annular steel skeleton 3-1 are mated with the annular locking groove 1-2 on the inner wall of the outer ring 1 to prevent the sealing cover 3 from falling off due to vibration, thereby improving the sealing performance of the bearing itself.

[0025] The bearing of the present application adopts an inner ring 2 with a retaining groove processed at both ends of the outer surface of the circumference. A retaining ring 4 is embedded in the interior of each retaining groove, replacing the traditional retaining frame and increasing the number of rollers inside the bearing, thereby improving the bearing capacity; and when the inner ring 2 moves, it prevents the sealing cover 3 from falling off due to force.

[0026] Specific implementation method 2: Combination Figures 1 to 3This embodiment further defines the roller bearing described in the first embodiment. In this embodiment, a high-load, vibration-resistant sealed roller bearing is provided. Guide surfaces 1-1 are machined at the edges of both ends of the inner hole of the outer ring 1.

[0027] In this specific embodiment, the edges of both ends of the inner hole of the outer ring 1 are respectively processed with guide surfaces 1 - 1 to facilitate the installation of the sealing cover 3 .

[0028] Specific implementation method three: Combination Figures 1 to 3 The present embodiment is described as a further limitation of the roller bearing described in the first embodiment. The present embodiment describes a high-load-bearing, vibration-resistant sealed roller bearing, wherein the sealing cover 3 comprises an annular steel skeleton 3-1 and a sealing rubber 3-2; the cross-section of the annular steel skeleton 3-1 is M-shaped, and a layer of sealing rubber 3-2 is provided on the outer surface of the annular steel skeleton 3-1, and a sealing rubber ring is provided at the edge of the inner hole of the annular steel skeleton 3-1 along the circumferential direction, and the sealing rubber ring is integrated with the sealing rubber 3-2 on the outer surface of the annular steel skeleton 3-1.

[0029] Specific implementation method four: Combination Figures 1 to 3 This embodiment is described as a further limitation of the roller bearing described in the third embodiment. The high-load-bearing, vibration-resistant sealed roller bearing described in this embodiment has a plurality of locking point protrusions evenly arranged on the bottom end of the outer surface of the annular steel skeleton 3-1 along the circumferential direction, and the height H of the locking point protrusions is 0.3 mm.

[0030] Specific implementation method five: Combination Figures 1 to 3 This embodiment further defines the roller bearing described in the fourth embodiment. In the high-load, vibration-resistant sealed roller bearing described in this embodiment, an annular locking groove 1-2 is machined at each end of the inner surface of the outer ring 1, and a locking protrusion on the outer surface of the annular steel skeleton 3-1 is engaged with the annular locking groove 1-2 on the inner wall of the outer ring 1.

[0031] In this specific embodiment, the locking point protrusions on the outer surface of the annular steel skeleton 3-1 are connected in cooperation with the annular locking point grooves 1-2 on the inner wall of the outer ring 1 to prevent the sealing cover 3 from falling off due to vibration and improve the sealing stability.

[0032] Specific implementation method six: combination Figures 1 to 3 This embodiment is described as a further limitation of the roller bearing described in the third embodiment. In this embodiment, a high-load-bearing, vibration-resistant sealed roller bearing is described, in which the sealing rubber ring at the inner ring of the sealing cover 3 is connected to the inner ring 2 by an interference fit, and the interference is 0.2 mm.

[0033] Specific implementation method seven: combination Figures 1 to 3 This embodiment is described as a further limitation of the roller bearing described in specific embodiment six. In this embodiment, a high-load-bearing, vibration-resistant sealed roller bearing is described, in which the outer surface of the annular steel skeleton 3-1 and the inner surface of the outer ring 1 are interference-fitted, and the interference is 0.1 mm.

Claims

1. A high load-bearing anti-vibration sealed roller bearing, characterized in that: It comprises an outer ring (1), an inner ring (2), a sealing cover (3), a retaining ring (4) and a roller; The inner ring (2) is machined with a retaining groove at both ends along the circumferential outer surface, and a retaining ring (4) is embedded in each retaining groove. The outer ring (1) is sleeved on the outer surface of the inner ring (2), and a roller channel is machined in the middle of the inner surface of the outer ring (1) along the circumferential direction. A plurality of rollers are arranged between the inner wall of the roller channel on the inner surface of the outer ring (1) and the outer surface of the inner ring (2), and the rollers are arranged between two retaining rings (4) on the outer surface of the inner ring (2). A sealing cover (3) is respectively arranged at both ends between the inner surface of the outer ring (1) and the outer surface of the inner ring (2), and the sealing cover (3) is sleeved on the inner ring (2).

2. A high load-bearing anti-vibration sealed roller bearing according to claim 1, characterized in that: Guide surfaces (1-1) are respectively processed at the edges of the two ends of the inner hole of the outer ring (1).

3. A high load-bearing anti-vibration sealed roller bearing according to claim 1, characterized in that: The sealing cover (3) comprises an annular steel frame (3-1) and a sealing rubber (3-2); the cross section of the annular steel frame (3-1) is M-shaped, and a layer of sealing rubber (3-2) is provided on the outer surface of the annular steel frame (3-1), a sealing rubber ring is provided along the circumferential direction at the edge of the inner hole of the annular steel frame (3-1), and the sealing rubber ring is integrally arranged with the sealing rubber (3-2) on the outer surface of the annular steel frame (3-1).

4. A high load-bearing anti-vibration sealed roller bearing according to claim 3, characterized in that: The bottom end of the outer surface of the annular steel skeleton (3-1) is evenly provided with a plurality of locking point protrusions along the circumferential direction, and the height H of the locking point protrusions is 0.3 mm.

5. A high load-bearing anti-vibration sealed roller bearing according to claim 4, characterized in that: An annular locking groove (1-2) is processed at both ends of the inner surface of the outer ring (1), and the locking protrusion on the outer surface of the annular steel frame (3-1) is matched and connected with the annular locking groove (1-2) on the inner wall of the outer ring (1).

6. A high load-bearing anti-vibration sealed roller bearing according to claim 3, characterized in that: The sealing rubber ring at the inner ring of the sealing cover (3) is connected to the inner ring (2) by interference fit, and the interference amount is 0.2 mm.

7. A high load-bearing anti-vibration sealed roller bearing according to claim 6, characterized in that: The outer surface of the annular steel skeleton (3-1) and the inner surface of the outer ring (1) are connected by interference fit, and the interference amount is 0.1 mm.

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