Special-shaped one-way roller bearing convenient to install

Abstract

The utility model belongs to the field of one-way roller bearings, particularly relates to a special-shaped one-way roller bearing convenient to install, and provides the following scheme aiming at the problems that an inner ring is not easy to keep in the middle and needs to be adjusted and the installation efficiency is reduced when the inner ring is connected with an outer ring in the existing installation process: the special-shaped one-way roller bearing comprises the outer ring and the inner ring, an annular protrusion is arranged on the outer wall of the circumference of the inner ring, the circumference of the protrusion is sleeved with a retainer, a gap is formed between the inner wall of the retainer and the circumference of the protrusion, and a first limiting ring used for limiting the retainer is integrally formed on the circumference of the protrusion. Through cooperative use of the first limiting ring and the second limiting ring, the installation accuracy of the inner ring and the retainer can be improved, repeated adjustment is avoided, use by people is facilitated, the installation efficiency is improved, after the supporting bearings are installed, the two supporting bearings can be positioned through the clamping spring, and the use stability of the supporting bearings is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of one-way roller bearings, in particular to a special-shaped one-way roller bearing convenient for installation. Background Technique

[0002] A one-way roller bearing, also known as a one-way bearing or a one-way needle roller bearing, is a special bearing design whose main function is to transmit a one-way rotational torque. The uniqueness of this bearing lies in that it only allows the axial force to be transmitted in one direction, while forming a barrier in the other direction. The structure of the one-way roller bearing includes many rollers, needle rollers or balls, and the shape design of its rolling seat enables it to only roll in one direction, while generating great resistance in the other direction, thus realizing the function of one-way transmission.

[0003] One-way bearings can be applied in multiple fields. Since there are more components in one-way bearings, it takes more time to install. During installation, when the inner ring and the outer ring inside are connected, it is not easy to keep the inner ring in the middle and needs to be adjusted, which reduces the installation efficiency. Therefore, a special-shaped one-way roller bearing convenient for installation is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to solve the defect that during installation in the prior art, when the inner ring and the outer ring inside are connected, it is not easy to keep the inner ring in the middle and needs to be adjusted, which reduces the installation efficiency, and to propose a special-shaped one-way roller bearing convenient for installation.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A special-shaped one-way roller bearing convenient for installation, including an outer ring and an inner ring. An annular protrusion is arranged on the circumferential outer wall of the inner ring. A cage is sleeved on the circumference of the protrusion. A gap is arranged between the inner wall of the cage and the circumference of the protrusion. A first limiting ring for limiting the cage is integrally formed on the circumference of the protrusion. A second limiting ring for limiting the cage is arranged on the circumferential inner wall of the outer ring. The first limiting ring and the second limiting ring are respectively located at both ends of the cage. A plurality of through installation ports are arranged on the circumference of the cage, and stop blocks are arranged in the installation ports.

[0007] As a further scheme of the utility model, support bearings are sleeved at both ends of the inner ring, and the support bearings are both located inside the outer ring.

[0008] As a further scheme of the utility model, a keyway is arranged on the circumferential inner wall of the inner ring.

[0009] As a further scheme of the utility model, two clamping grooves are arranged on the circumferential inner wall of the outer ring, and snap rings are arranged in the two clamping grooves, and the two snap rings respectively limit the two support bearings.

[0010] As a further solution of the present utility model, shaft seals are provided at both ends of the outer ring.

[0011] As a further solution of the present utility model, the stop blocks are all inclined.

[0012] In this application, during installation, the stop blocks are inserted into the cage, and then the cage is inserted into the outer ring. When inserting, the second limiting ring limits the cage at the same time to ensure the accuracy of the position where the cage stays. Then the inner ring is inserted into the cage. When inserting, the first limiting ring contacts the cage, thereby increasing the installation accuracy of the inner ring, maintaining the installation accuracy, avoiding repeated adjustment, and facilitating people's use. Then the two support bearings are installed between the outer ring and the inner ring. After installation, the two support bearings are positioned by a snap ring to maintain the stability of the support bearings during use. Finally, the shaft seals keep the internal space of the product clean.

[0013] Beneficial effects:

[0014] In the present utility model, for the special-shaped one-way roller bearing that is easy to install, through the combined use of the first limiting ring and the second limiting ring, the installation accuracy of the inner ring and the cage can be increased, repeated adjustment can be avoided, people's use is facilitated, and the installation efficiency is improved;

[0015] In the present utility model, for the special-shaped one-way roller bearing that is easy to install, through the combined use of the card slot and the snap ring, after the support bearings are installed, the two support bearings can be positioned by the snap ring to maintain the stability of the support bearings during use.

[0016] In the present utility model, through the combined use of the first limiting ring and the second limiting ring, the installation accuracy of the inner ring and the cage can be increased, repeated adjustment can be avoided, people's use is facilitated, and the installation efficiency is improved. And after the support bearings are installed, the two support bearings can be positioned by the snap ring to maintain the stability of the support bearings during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a three-dimensional structural schematic diagram of a special-shaped one-way roller bearing that is easy to install proposed by the present utility model;

[0018] Figure 2 FIG. is a sectional structural schematic diagram of a special-shaped one-way roller bearing that is easy to install proposed by the present utility model;

[0019] Figure 3 FIG. is a partial exploded structural schematic diagram of a special-shaped one-way roller bearing that is easy to install proposed by the present utility model;

[0020] Figure 4 Schematic diagram of the cage and stop block structure of a special-shaped one-way roller bearing that is easy to install proposed by the present utility model.

[0021] In the figure: 1. Outer ring; 2. Inner ring; 3. Keyway; 4. Shaft seal; 5. Support bearing; 6. Card slot; 7. Snap ring; 8. Protrusion; 9. First limit ring; 10. Second limit ring; 11. Cage; 12. Stop block. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0023] Embodiment 1

[0024] Referring to Figures 1 - 4 , a special-shaped one-way roller bearing that is easy to install includes: an outer ring 1 and an inner ring 2. The circumferential outer wall of the inner ring 2 is provided with an annular protrusion 8. A cage 11 is sleeved on the circumference of the protrusion 8. A gap is provided between the inner wall of the cage 11 and the circumference of the protrusion 8, and a gap is also provided between the cage 11 and the outer ring 1. A first limit ring 9 for limiting the cage 11 is integrally formed on the circumference of the protrusion 8. A second limit ring 10 for limiting the cage 11 is provided on the circumferential inner wall of the outer ring 1. The first limit ring 9 and the second limit ring 10 are respectively located at both ends of the cage 11. The second limit ring 10 limits the cage 11 to maintain the accuracy of the staying position of the cage 11. Then, the inner ring 2 is inserted into the cage 11, and the first limit ring 9 contacts the cage 11, thereby increasing the installation accuracy of the inner ring 2, avoiding repeated adjustment, and facilitating people to use. A plurality of through installation openings are provided on the circumference of the cage 11, and stop blocks 12 are provided in the installation openings.

[0025] Embodiment 2

[0026] Referring to Figures 1 - 4 , on the basis of Embodiment 1, a special-shaped one-way roller bearing that is easy to install is improved.

[0027] In the present utility model, support bearings 5 are sleeved at both ends of the inner ring 2. The support bearings 5 are all located inside the outer ring 1. The support bearings 5 are used to maintain the stability between the inner ring 2 and the outer ring 1 and facilitate the rotation of the inner ring 2.

[0028] Particularly, a keyway 3 is opened on the circumferential inner wall of the inner ring 2, and the keyway 3 facilitates the connection between the inner ring 2 and the shaft.

[0029] It should be noted that two clamping grooves 6 are provided on the circumferential inner wall of the outer ring 1, and snap rings 7 are arranged in both of the two clamping grooves 6. The two snap rings 7 limit the two support bearings 5 respectively, and position the two support bearings 5 through the snap rings 7 to maintain the stability of the use of the support bearings 5.

[0030] In the present utility model, shaft seals 4 are provided at both ends of the outer ring 1, and the shaft seals 4 keep the internal space of the product clean.

[0031] In particular, the stop blocks 12 are all inclined for stopping.

[0032] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. An irregular one-way roller bearing that is easy to install, comprising an outer ring (1) and an inner ring (2), characterized in that, The circumferential outer wall of the inner ring (2) is provided with an annular protrusion (8). A cage (11) is sleeved on the circumference of the protrusion (8). A gap is provided between the inner wall of the cage (11) and the circumference of the protrusion (8). A first limiting ring (9) for limiting the cage (11) is integrally formed on the circumference of the protrusion (8). A second limiting ring (10) for limiting the cage (11) is provided on the circumferential inner wall of the outer ring (1). The first limiting ring (9) and the second limiting ring (10) are respectively located at both ends of the cage (11). A plurality of through mounting openings are provided on the circumference of the cage (11), and a stop block (12) is provided in each mounting opening.

2. The special-shaped one-way roller bearing according to claim 1, which is easy to install, is characterized in that, Support bearings (5) are sleeved at both ends of the inner ring (2), and the support bearings (5) are both located inside the outer ring (1).

3. The special-shaped one-way roller bearing according to claim 1, characterized in that, A keyway (3) is formed on the circumferential inner wall of the inner ring (2).

4. The special-shaped one-way roller bearing according to claim 2, characterized in that, Two clamping grooves (6) are formed on the circumferential inner wall of the outer ring (1). Circlips (7) are provided in the two clamping grooves (6), and the two circlips (7) respectively limit the two support bearings (5).

5. A special-shaped one-way roller bearing that is easy to install according to claim 1, characterized in that, Shaft seals (4) are provided at both ends of the outer ring (1).

6. The special-shaped one-way roller bearing according to claim 1, wherein The stop blocks (12) are all inclined.

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