High-speed ball bearing retainer with reinforcing rib lightweight structure

Abstract

The high-speed ball bearing retainer with the reinforcing rib lightweight structure comprises an annular retainer body, a plurality of ball pockets are evenly distributed on one end face of the retainer body, and a plurality of weight reducing grooves are evenly formed in the other end face, opposite to the ball pockets, of the retainer body. And first reinforcing ribs are arranged between the ball pockets and the retainer main body. According to the high-speed ball bearing retainer with the reinforcing rib lightweight structure, through the specially-designed weight reducing grooves and reinforcing rib structures, on the premise that an existing engineering plastic retainer meets functional use requirements, the weight of the retainer is reduced, and the retainer is structurally reinforced to a certain degree, so that the purpose of light weight is achieved, breakage is avoided, and the service life of the retainer is prolonged. And the device can adapt to a higher rotating speed scene and is long in service life.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a high-speed ball bearing retainer with a lightweight structure having reinforcing ribs. Background Art

[0002] Some existing ball bearings operating at high speeds have a large structural margin, resulting in an overall heavy weight and significant centrifugal forces. To reduce the weight of the cage, weight-reducing holes or grooves are often added to the cage to achieve this goal. However, the presence of these holes can reduce the overall strength of the cage and even cause local deformation or fracture, shortening its service life. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a high-speed ball bearing cage with a lightweight structure having reinforcing ribs, which has a simple structure, light weight, high strength and long service life.

[0004] The utility model is achieved through the following technical solutions:

[0005] The utility model provides a high-speed ball bearing retainer with a lightweight structure having reinforcing ribs, comprising an annular retainer body, a plurality of ball pockets evenly distributed on one end face of the retainer body, a plurality of weight-reducing grooves evenly opened on the other end face of the retainer body opposite to the ball pockets, and a first reinforcing rib is provided between the ball pockets and the retainer body.

[0006] In a preferred embodiment of the present invention, the inner end face of the ball pocket and the inner end face of the retaining frame body are on the same circle, the outer end face of the ball pocket and the outer end face of the retaining frame body are not on the same circle, and the diameter of the circle where the outer end face of the ball pocket is located is smaller than the diameter of the circle where the outer end face of the retaining frame body is located.

[0007] Preferably, the weight-reducing grooves are arc-shaped long strip weight-reducing grooves, and each arc-shaped long strip weight-reducing groove is on the same circle.

[0008] In order to further improve the weight reduction effect, both ends of the arc-shaped long strip weight reduction groove penetrate the wall thickness of the retainer body, and the inner end surface of the arc-shaped long strip weight reduction groove and the outer end surface of the ball pocket are on the same circle.

[0009] Since the arc-shaped long strip weight-reducing groove is long, in order to prevent it from deformation or breakage during use, the arc-shaped long strip weight-reducing groove passes through the thick part of the retainer body wall and is provided with a second reinforcing rib between the outer end surface of the ball pocket;

[0010] Furthermore, the bottom end surface of the second reinforcing rib is on the same horizontal plane as the bottom end surface of the retainer body, and the top end surface of the second reinforcing rib is lower than the top end surface of the retainer body.

[0011] In order to ensure the strength of the connection between the ball pocket and the retainer body, the left and right ends of the outer end surface of the ball pocket are respectively provided with first reinforcing ribs, and an arc-shaped transition is adopted between the first reinforcing ribs and the top end surface of the retainer body.

[0012] The beneficial effect of the present invention is that the high-speed ball bearing retainer with a lightweight structure having reinforcing ribs reduces the weight of the existing engineering plastic retainer while meeting the functional requirements through specially designed weight-reducing grooves and reinforcing rib structures, and strengthens the retainer to a certain extent, thereby achieving the purpose of lightweighting, avoiding breakage, being able to adapt to higher speed scenarios, and having a longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of a high-speed ball bearing cage with a lightweight structure having reinforcing ribs according to the present invention;

[0014] Figure 2 This is a front view of the high-speed ball bearing cage with a lightweight structure having reinforcing ribs according to the present invention;

[0015] Figure 3 This is a top view of the high-speed ball bearing cage with a lightweight structure having reinforcing ribs according to the present invention;

[0016] Figure 4 This is a bottom view of the high-speed ball bearing cage with a lightweight structure having reinforcing ribs according to the present invention. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0018] Combine Figure 1 The high-speed ball bearing retainer shown has a lightweight structure with reinforcing ribs, including a circular retainer body 1, on one end face (top face) of which a number of ball pockets 2 are evenly distributed, and on the other end face (bottom face) of the retainer body 1 opposite to the ball pockets 2 a number of weight-reducing grooves 3 are evenly opened. At the same time, there is a first reinforcing rib 4 between the ball pockets 2 and the retainer body 1, and a second reinforcing rib 5 is provided between the weight-reducing grooves 3 and the ball pockets. The high-speed ball bearing retainer is integrally molded from engineering plastics and is easy to manufacture.

[0019] Specifically, combined Figure 2-4As shown, the inner end face of the ball pocket 2 and the inner end face of the retainer body 1 are on the same circle, while the outer end face of the ball pocket 2 and the outer end face of the retainer body 1 are not on the same circle, and the diameter of the circle on which the outer end face of the ball pocket 2 is located is smaller than the diameter of the circle on which the outer end face of the retainer body 1 is located, that is, the thickness of the ball pocket 2 is smaller than the thickness of the retainer body 1;

[0020] The weight-reducing groove 3 is a plurality of arc-shaped long strip weight-reducing grooves, and each arc-shaped long strip weight-reducing groove is on the same circle, and both ends of the arc-shaped long strip weight-reducing groove pass through the wall thickness of the retainer body 1, and the inner end face of the arc-shaped long strip weight-reducing groove and the outer end face of the ball pocket 2 are on the same circle, that is, the arc-shaped long strip weight-reducing groove only partially passes through the retainer body 1 to ensure its strength. At the same time, in order to further improve the strength, a second reinforcing rib 5 is provided between the arc-shaped long strip weight-reducing groove passing through the wall thickness of the retainer body and the outer end face of the ball pocket 2, that is, a second reinforcing rib 5 is provided between two adjacent weight-reducing grooves 3, and the bottom end face of the second reinforcing rib 5 is on the same horizontal plane as the bottom end face of the retainer body 1, and the top end face of the second reinforcing rib 5 is lower than the top end face of the retainer body 1;

[0021] The left and right ends of the outer end surface of the ball pocket 2 are respectively provided with first reinforcing ribs 4 , and an arc-shaped transition is adopted between the first reinforcing ribs 4 and the top end surface of the retainer body 1 .

[0022] The utility model can reduce the overall weight of the retaining frame to the greatest extent through specially designed weight-reducing grooves, thereby achieving lightweighting. At the same time, first and second reinforcing ribs are added to the corresponding parts to improve the strength of local deformation and fracture parts to meet the needs of higher speed scenarios.

[0023] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "between", "horizontal", "inside", "outside", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A high-speed ball bearing cage with a lightweight structure and reinforced ribs, comprising a ring-shaped cage body, with a plurality of ball pockets evenly distributed on one end surface of the cage body, characterized in that: A plurality of weight-reducing grooves are evenly arranged on the other end surface of the retainer body opposite to the ball pocket, and a first reinforcing rib is provided between the ball pocket and the retainer body.

2. The high-speed ball bearing cage with a lightweight structure having reinforcing ribs according to claim 1, characterized in that: The inner end face of the ball pocket and the inner end face of the retainer body are on the same circle, the outer end face of the ball pocket and the outer end face of the retainer body are not on the same circle, and the diameter of the circle where the outer end face of the ball pocket is located is smaller than the diameter of the circle where the outer end face of the retainer body is located.

3. The high-speed ball bearing cage with a lightweight structure having reinforcing ribs according to claim 2, characterized in that: The weight-reducing grooves are arc-shaped long strip weight-reducing grooves, and each arc-shaped long strip weight-reducing groove is located on the same circle.

4. The high-speed ball bearing cage with a lightweight structure having reinforcing ribs according to claim 3, characterized in that: Both ends of the arc-shaped long strip weight-reducing groove pass through the wall thickness of the retaining frame body, and the inner end surface of the arc-shaped long strip weight-reducing groove and the outer end surface of the ball pocket are on the same circle.

5. The high-speed ball bearing cage with a lightweight structure having reinforcing ribs according to claim 4, characterized in that: The arc-shaped long strip weight-reducing groove passes through the wall thickness of the retainer body and is provided with a second reinforcing rib between the outer end surface of the ball pocket.

6. The high-speed ball bearing cage with a lightweight structure having reinforcing ribs according to claim 5, characterized in that: The bottom end surface of the second reinforcing rib is on the same horizontal plane as the bottom end surface of the retainer body, and the top end surface of the second reinforcing rib is lower than the top end surface of the retainer body.

7. The high-speed ball bearing cage with a lightweight structure having reinforcing ribs according to any one of claims 1 to 6, characterized in that: The left and right ends of the outer end surface of the ball pocket are respectively provided with first reinforcing ribs, and an arc-shaped transition is adopted between the first reinforcing ribs and the top end surface of the retaining frame body.

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