Double-ball special-shaped bearing

Abstract

The utility model discloses a double-ball special-shaped bearing which comprises a bearing outer ring, an installation boss is arranged on the outer surface of the bearing outer ring, a bearing inner ring is arranged in the bearing outer ring, a rotating assembly is rotationally installed between the bearing outer ring and the bearing inner ring, and a shaft sleeve assembly is movably installed in the bearing inner ring. The shaft sleeve assembly comprises a shaft sleeve body installed in the bearing inner ring, two slopes are arranged on the inner wall of the shaft sleeve body, and a set of limiting grooves are formed in the outer surface of the shaft sleeve body. According to the utility model, a step can be formed on the surface of the bearing through the arranged mounting boss, so that the bearing can be conveniently mounted at a use position, the mounting is firmer and more reliable, and the rotating assembly is arranged and consists of the retainer, the first ball and the second ball, so that the bearing is more stable and reliable. And the two sets of balls can further guarantee the use stability of the bearing, the use precision of the bearing is guaranteed, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a double-ball special-shaped bearing. Background Art

[0002] Bearings are an important basic mechanical part that plays the role of "joints" in mechanical equipment. The main function of bearings is to support and reduce friction during rotational motion, while also being able to withstand axial and radial loads. Due to their important role in mechanical equipment, the quality of bearings is directly related to the operating efficiency and life of the entire mechanical equipment.

[0003] The bearings used in medical devices require extremely high precision, but existing bearings usually have a simple structure, and only one set of balls is often used inside the bearing. During use, the balls will gradually wear out, resulting in unstable bearing use and unsatisfactory reliability, which has certain defects. Utility Model Content

[0004] The utility model aims to provide a double-ball special-shaped bearing to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-ball special-shaped bearing, comprising a bearing outer ring, the outer surface of the bearing outer ring is provided with a mounting boss, the interior of the bearing outer ring is provided with a bearing inner ring, a rotating assembly is rotatably installed between the bearing outer ring and the bearing inner ring, and a shaft sleeve assembly is movably installed inside the bearing inner ring.

[0006] The sleeve assembly comprises a sleeve body installed inside the inner ring of the bearing, and the inner wall of the sleeve body is provided with two inclined surfaces.

[0007] Wherein, a group of limiting grooves are opened on the outer surface of the sleeve body, and a group of protrusions matched with the limiting grooves are connected to the inner wall of the bearing inner ring.

[0008] Wherein, the rotating assembly includes a retaining frame arranged between the outer ring of the bearing and the inner ring of the bearing, and a group of first balls and a group of second balls are respectively installed inside the retaining frame.

[0009] Wherein, two sealing rings are installed on the outer surface of the bearing inner ring.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model can form a step on the bearing surface by setting a mounting boss, so that the bearing can be easily installed in the use position, and the installation can be more firm and reliable. By setting a rotating assembly, the rotating assembly consists of a retaining frame and a first ball and a second ball. The two sets of balls can further ensure the stability of the bearing in use, ensure the bearing usage accuracy, and increase the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of a double-ball special-shaped bearing of the utility model;

[0013] Figure 2 This is a bottom view of the outer ring of a double-ball special-shaped bearing of the utility model;

[0014] Figure 3 It is a front cross-sectional view of the outer ring of a double ball special-shaped bearing of the utility model;

[0015] Figure 4 The utility model is a three-dimensional structural schematic diagram of a shaft sleeve assembly in a double-ball special-shaped bearing.

[0016] In the figure: 1, bearing outer ring; 2, mounting boss; 3, sleeve assembly; 301, sleeve body; 302, inclined surface; 303, limit groove; 304, bump; 4, bearing inner ring; 5, sealing ring; 6, rotating assembly; 601, retaining frame; 602, first ball; 603, second ball. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4 The utility model provides a technical solution: a double-ball special-shaped bearing, including a bearing outer ring 1, an outer surface of the bearing outer ring 1 is provided with a mounting boss 2, the mounting boss 2 is convenient for installing the bearing and plays a good fixing role, a bearing inner ring 4 is provided inside the bearing outer ring 1, a rotating component 6 is rotatably installed between the bearing outer ring 1 and the bearing inner ring 4, the rotating component 6 can play a supporting role, so that the bearing inner ring 4 and the bearing outer ring 1 can rotate stably, a shaft sleeve component 3 is movably installed inside the bearing inner ring 4, and the shaft sleeve component 3 can protect the bearing inner ring 4.

[0019] Among them, the sleeve assembly 3 includes a sleeve body 301 installed inside the bearing inner ring 4, and the inner wall of the sleeve body 301 is provided with two inclined surfaces 302. The sleeve body 301 can protect the bearing inner ring 4 and replace the bearing inner ring 4 to contact with the external connecting parts. The set inclined surfaces 302 can facilitate the installation of the sleeve body 301.

[0020] Among them, a group of limiting grooves 303 are opened on the outer surface of the sleeve body 301, and a group of protrusions 304 adapted to the limiting grooves 303 are connected to the inner wall of the bearing inner ring 4. The limiting grooves 303 and the protrusions 304 can be used to limit the sleeve body 301, making its installation more stable.

[0021] Among them, the rotating component 6 includes a retaining frame 601 arranged between the bearing outer ring 1 and the bearing inner ring 4, and a group of first balls 602 and a group of second balls 603 are respectively installed inside the retaining frame 601. The first balls 602 and the second balls 603 can be installed through the retaining frame 601, which plays a role of stable support between the bearing outer ring 1 and the bearing inner ring 4.

[0022] Among them, two sealing rings 5 ​​are installed on the outer surface of the bearing inner ring 4, and the sealing rings 5 ​​can be used to seal the gap between the bearing inner ring 4 and the bearing outer ring 1 to prevent external foreign matter from entering the interior.

[0023] Working principle: When in use, you first need to install the sleeve body 301. During installation, you can align the protrusion 304 with the limit groove 303, and then the sleeve body 301 can be installed into the inner ring 4 of the bearing. When installing the bearing, the sleeve body 301 can replace the inner ring 4 of the bearing to contact external parts. The step formed by the mounting boss 2 can make the bearing more stably installed for easy use.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double ball profiled bearing, comprising a bearing outer ring (1), characterized in that: The outer surface of the bearing outer ring (1) is provided with a mounting boss (2), the interior of the bearing outer ring (1) is provided with a bearing inner ring (4), a rotating assembly (6) is rotatably mounted between the bearing outer ring (1) and the bearing inner ring (4), a shaft sleeve assembly (3) is movably mounted inside the bearing inner ring (4), the shaft sleeve assembly (3) comprises a shaft sleeve body (301) mounted inside the bearing inner ring (4), the inner wall of the shaft sleeve body (301) is provided with two inclined surfaces (302), the rotating assembly (6) comprises a retaining frame (601) disposed between the bearing outer ring (1) and the bearing inner ring (4), a group of first balls (602) and a group of second balls (603) are respectively mounted inside the retaining frame (601).

2. A double ball profiled bearing according to claim 1, characterized in that: The outer surface of the shaft sleeve body (301) is provided with a group of limiting grooves (303), and the inner wall of the bearing inner ring (4) is connected with a group of protrusions (304) matched with the limiting grooves (303).

3. A double ball profiled bearing according to claim 1, characterized in that: Two sealing rings (5) are installed on the outer surface of the bearing inner ring (4).

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