Cylindrical roller bearing with wide inner ring

Abstract

The utility model discloses a cylindrical roller bearing with a wide inner ring, which belongs to the technical field of bearing processing, and comprises an outer ring, the wide inner ring, a retainer and a cylindrical roller, the outer ring, the wide inner ring and the retainer are mutually matched, the retainer is uniformly provided with a plurality of round holes and pockets along the circumferential direction, the pockets are square, the four inner walls of each pocket are provided with arc-shaped grooves, and the arc-shaped grooves are matched with the cylindrical roller. A plurality of connecting blocks are evenly and fixedly connected to the inner ring face of the retainer in the circumferential direction, triangular grooves are formed in the middles of the near-center ends of the connecting blocks, locking points are arranged on one sides of the near-center ends of the connecting blocks, and the locking points of every two adjacent connecting blocks are matched to limit the cylindrical rollers. According to the cylindrical roller bearing, the defects of the existing cylindrical roller bearing in the aspects of retainer weight, lubricating performance and cylindrical roller limiting stability are overcome, and the flexibility, the lubricating effect and the overall operation stability of the bearing are improved by optimizing the structural design, so that the requirements of modern mechanical equipment on high-performance bearings are met.

Description

Technical Field

[0001] This utility model relates to the field of bearing processing technology, and in particular to a wide inner ring cylindrical roller bearing. Background Technology

[0002] In the field of mechanical transmission, bearings are key components widely used in various rotating equipment. However, traditional cylindrical roller bearings still have some shortcomings in practical use. For example, their cage structure design is often relatively simple and their weight is relatively heavy, which to some extent limits the bearing's operating speed and flexibility, making it difficult to meet the needs of some high-speed, high-precision operating equipment. In addition, traditional bearings also have certain limitations in lubrication performance. The storage and replenishment of grease is not efficient enough, which can easily lead to problems such as accelerated wear and decreased operating performance after long-term operation due to insufficient lubrication, thus affecting the normal operation and service life of the equipment. Moreover, the cylindrical roller limiting method of traditional cylindrical roller bearings is not ideal, which may lead to unstable cylindrical roller positions and unstable overall bearing operation during operation, thereby affecting the operating accuracy and reliability of the equipment.

[0003] Therefore, in view of the above-mentioned problems of existing cylindrical roller bearings, it is necessary to improve and optimize them to enhance bearing performance, lubrication effect and overall stability, and meet the needs of modern mechanical equipment for high-performance bearings. Utility Model Content

[0004] The purpose of this invention is to provide a wide inner ring cylindrical roller bearing that addresses the shortcomings of existing cylindrical roller bearings in terms of cage weight, lubrication performance, and cylindrical roller positioning stability. By optimizing the structural design, the bearing's flexibility, lubrication effect, and overall operational stability are improved, thereby meeting the demands of modern mechanical equipment for high-performance bearings.

[0005] To achieve the above objectives, this utility model provides a wide inner ring cylindrical roller bearing, including an outer ring, a wide inner ring, a cage, and cylindrical rollers. The outer ring, wide inner ring, and cage cooperate with each other. The cage is uniformly provided with a plurality of round holes and pockets along the circumference. The round holes are located between two adjacent pockets, and the cylindrical rollers are located inside the pockets.

[0006] The pocket is square, and each of the four inner walls of the pocket is provided with an arc-shaped groove. Multiple connecting blocks are uniformly fixedly connected to the inner ring surface of the retainer along the circumference, and two adjacent connecting blocks cooperate with each other at the proximal end of the pocket.

[0007] A triangular groove is provided in the middle of the proximal end of the connecting block, and a locking point is provided on one side of the proximal end of the connecting block. The locking points of two adjacent connecting blocks cooperate to limit the position of the cylindrical roller.

[0008] Preferably, the locking point is a limiting surface inclined toward the cylindrical roller, and the cylindrical roller is limited by the limiting surfaces on the two connecting blocks to the proximal end.

[0009] Preferably, the distal end of the cylindrical roller is limited by the inner ring surface of the outer ring.

[0010] Preferably, the outer ring has two retaining edges, while the wide inner ring has no retaining edges.

[0011] The advantages and positive effects of the wide inner ring cylindrical roller bearing described in this utility model are:

[0012] (1) The round hole and the triangular groove on the connecting block of this utility model can reduce the weight of the cage, making the cage lighter and faster during operation, and making the bearing run faster and more smoothly.

[0013] (2) The arc groove of this utility model can be used to store grease. The arc groove can replenish the stored grease to the cylindrical roller as quickly as possible, ensuring that the bearing operates in the best performance state.

[0014] (3) The locking point of this utility model can lock the cylindrical roller inside the raceway of the outer ring, so that the outer ring of the bearing, the cage and the cylindrical roller form an outer component, ensuring the integrity of the bearing and making the bearing run more smoothly during operation.

[0015] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a wide inner ring cylindrical roller bearing according to the present invention;

[0017] Figure 2 This is a schematic diagram of the cage structure of this utility model;

[0018] Figure 3 This is another structural schematic diagram of the cage of this utility model;

[0019] Figure 4 This is a cross-sectional view of the retainer of this utility model;

[0020] Figure 5 This is an enlarged view of the connecting block of this utility model.

[0021] Figure Labels

[0022] 1. Outer ring; 2. Wide inner ring; 3. Cage; 4. Cylindrical roller; 5. Round hole; 6. Pocket; 7. Arc groove; 8. Connecting block; 9. Triangular groove; 10. Locking point. Detailed Implementation

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] In this application, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. In case of any inconsistency, the meaning set forth in this specification or derived from the content described herein shall prevail. Furthermore, the terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit the scope of this application.

[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] like Figures 1-5 As shown, a wide inner ring cylindrical roller bearing includes an outer ring 1, a wide inner ring 2, a cage 3, and cylindrical rollers 4. The outer ring 1, the wide inner ring 2, and the cage 3 cooperate with each other. The cage 3 is uniformly provided with a plurality of round holes 5 and pockets 6 along the circumference. The round holes 5 are located between two adjacent pockets 6, and the cylindrical rollers 4 are located in the pockets 6.

[0027] Specifically, this bearing uses a design where the inner ring is wider than the outer ring. The advantage of this design is that it allows the shaft to move axially in two directions relative to the bearing housing. However, the displacement is not unlimited; it is usually in the millimeter range. The maximum displacement varies depending on the size of the model. Generally, the bearing should still operate around the center of the inner ring raceway. However, this displacement plays a crucial role in improving the stability of the system and is suitable for compensating for the thermal expansion of the shaft or installation errors.

[0028] The pocket 6 is square, and there are arc-shaped grooves 7 on the four inner walls of the pocket 6. Multiple connecting blocks 8 are evenly fixedly connected to the inner ring surface of the retainer 3 along the circumference. Two adjacent connecting blocks 8 cooperate with each other at the proximal end of the pocket 6.

[0029] Specifically, the function of the arc groove 7 is to store grease. When the bearing is running, the grease stored in this part is closest to the cylindrical roller 4. Since the bearing is constantly running, the grease will be constantly consumed. The arc groove 7 can quickly replenish the stored grease to the cylindrical roller 4, ensuring that the bearing is running in the best performance condition.

[0030] A triangular groove 9 is provided in the middle of the proximal end of the connecting block 8, and a locking point 10 is provided on one side of the proximal end of the connecting block 8. The locking points 10 of two adjacent connecting blocks 8 cooperate to limit the cylindrical roller 4.

[0031] Specifically, the purpose of the round hole 5 is to reduce the weight of the cage 3, and the triangular groove 9 on the connecting block 8 is also to reduce the weight of the cage 3 as much as possible, so that the cage 3 can operate more smoothly and the bearing can operate at a higher speed and more smoothly.

[0032] Locking point 10 is a limiting surface that is inclined toward the cylindrical roller 4, and the limiting surfaces on the two connecting blocks 8 limit the proximal end of the cylindrical roller 4.

[0033] Specifically, locking point 10 can lock the cylindrical roller 4 inside the raceway of the outer ring 1, so that the bearing outer ring 1, cage 3 and cylindrical roller 4 form an outer assembly, ensuring the integrity of the bearing and making the bearing run more smoothly during operation.

[0034] The distal end of the cylindrical roller 4 is limited by the inner ring surface of the outer ring 1.

[0035] The outer ring 1 has two flanges, while the wide inner ring 2 has no flanges.

[0036] This invention reduces the weight of the cage 3 through the round hole 5 and the triangular groove 9 on the connecting block 8. The arc groove 7 can be used to store grease. The locking point 10 on the connecting block 8 can lock the cylindrical roller 4 in the raceway of the outer ring 1, so that the bearing outer ring 1, cage 3 and cylindrical roller 4 form an outer component, ensuring the integrity of the bearing and making the bearing run more smoothly during operation.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A wide inner ring cylindrical roller bearing, characterized in that: It includes an outer ring, a wide inner ring, a cage, and cylindrical rollers. The outer ring, the wide inner ring, and the cage cooperate with each other. The cage is evenly provided with a plurality of round holes and pockets along the circumference. The round holes are located between two adjacent pockets, and the cylindrical rollers are located inside the pockets. The pocket is square, and each of the four inner walls of the pocket is provided with an arc-shaped groove. Multiple connecting blocks are uniformly fixedly connected to the inner ring surface of the retainer along the circumference, and two adjacent connecting blocks cooperate with each other at the proximal end of the pocket. A triangular groove is provided in the middle of the proximal end of the connecting block, and a locking point is provided on one side of the proximal end of the connecting block. The locking points of two adjacent connecting blocks cooperate to limit the position of the cylindrical roller.

2. The wide inner ring cylindrical roller bearing according to claim 1, characterized in that: The locking point is a limiting surface inclined toward the cylindrical roller, and the cylindrical roller is limited by the limiting surfaces on the two connecting blocks.

3. A wide inner ring cylindrical roller bearing according to claim 2, characterized in that: The distal end of the cylindrical roller is limited by the inner ring surface of the outer ring.

4. A wide inner ring cylindrical roller bearing according to claim 1, characterized in that: The outer ring has two retaining edges, while the wide inner ring has no retaining edges.

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