Bearing retainer structure

Abstract

The utility model discloses a bearing retainer structure which comprises an annular retainer body and a plurality of pockets arranged on one end face of the retainer body, the pockets are circumferentially distributed by taking the circle center of the retainer body as the circle center, and position adjusting grooves are formed in the outer side edges of the bottoms of the pockets and used for adjusting the positions of the pockets when steel balls are placed in the pockets. And the center-of-mass position of the retainer is consistent with the comprehensive rotation center-of-mass position of the steel ball. According to the bearing retainer structure disclosed by the utility model, through the arrangement of the position adjusting groove, the mass center position of the retainer can be kept consistent with the rotation comprehensive mass center position of the steel ball in the high-speed operation process.

Description

Technical Field

[0001] The utility model relates to an angular contact ball bearing, more particularly to a bearing retainer structure. Background Art

[0002] In most current angular contact ball bearing applications, the high-speed performance of the bearings is increasingly demanding. During the high-speed rotation of the bearing, the reason for the failure of the cage is the inconsistency between the center of mass of the cage and the center of mass of the steel ball rotation. In addition, the centrifugal force will cause the position of the cage claws to deform too much, causing the cage to fail. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a bearing retainer structure that improves the high-speed performance of the bearing.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bearing retainer structure, comprising an annular frame body and a plurality of pockets arranged on one end face of the frame body, wherein the plurality of pockets are distributed in a circle with the center of the frame body as the center of the circle, and is characterized in that: the outer edges of the bottoms of the plurality of pockets are provided with adjustment grooves, which are used to keep the center of mass position of the retainer consistent with the comprehensive center of mass position of the steel ball rotation when the steel ball is placed in the pocket.

[0005] As a further improvement of the present invention, the adjustment groove is an arc groove structure.

[0006] As a further improvement of the present invention, a reinforcing rib is fixed between two adjacent pockets.

[0007] As a further improvement of the present invention, the reinforcing rib is composed of a first rib and a second rib, both of which are long strip structures and are arranged obliquely between the two pockets to intersect with each other so that the cross-section of the reinforcing rib is X-shaped.

[0008] As a further improvement of the present invention, the first rib and the second rib are both composed of two straight rods and one oblique rod, and the side edges of the two straight rods are respectively fixed on the two side edges of one oblique rod, so that the cross-section of the reinforcing rib is a shape consisting of two horseshoe-shaped bottoms connected at the upper and lower ends.

[0009] The beneficial effect of the present invention is that by providing an adjustment groove on the outer edge of the bottom of the pocket hole, the center of mass position of the retaining frame can be simply and effectively achieved to be consistent with the comprehensive center of mass position of the steel ball rotation. In this way, during the high-speed operation of the bearing, the steel ball is not easy to fall out of the pocket hole, which effectively improves the high-speed operation performance of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1This is the overall structural diagram of the bearing retainer structure of the present utility model;

[0011] Figure 2 This is a schematic end view of the bearing retainer structure of the present invention;

[0012] Figure 3 It is a side view of the bearing retainer structure of the present invention;

[0013] Figure 4 for Figure 3 Schematic diagram of the cross section of the middle reinforcement. DETAILED DESCRIPTION

[0014] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0015] Reference Figures 1 to 4 As shown, a bearing retainer structure of the present embodiment includes an annular frame body 1 and a plurality of pockets 2 arranged on one end face of the frame body 1, and the plurality of pockets 2 are distributed in a circle with the center of the frame body 1 as the center of the circle, and is characterized in that: an adjustment groove 3 is provided on the outer edge of the bottom of the plurality of pockets 2, which is used to keep the center of mass position of the retainer consistent with the comprehensive center of mass position of the steel ball rotation when the steel ball is placed in the pocket 2. In the process of using the retainer of the present embodiment, it is only necessary to put the frame body 1 on the inner ring of the bearing, and then place the steel balls one by one in the pockets 2. Since the adjustment groove 3 is provided in the pocket 2, the comprehensive center of mass position of the steel ball rotation placed in the pocket 2 can be consistent with that of the frame body 1, which can effectively increase the high-speed performance of the bearing.

[0016] As a specific implementation of the improvement, the adjustment groove 3 is a circular arc groove structure. The adjustment groove 3 adopts a circular arc groove structure, which can effectively increase the deformation resistance of the adjustment groove 3.

[0017] As a specific implementation of the improvement, a reinforcing rib 4 is fixed between two adjacent pockets 2. By setting the reinforcing rib 4, the hole wall structure of the pocket 2 can be strengthened, so that the pocket 2 has stronger anti-deformation performance during high-speed operation.

[0018] As a specific embodiment of the improvement, the reinforcing rib 4 is composed of a first rib 41 and a second rib 42. The first rib 41 and the second rib 42 are both long strip structures and are arranged obliquely between the two pockets 2 to cross each other so that the cross-section of the reinforcing rib 4 is X-shaped. By combining the reinforcing rib 4 through the first rib 41 and the second rib 42, it is possible to achieve that the reinforcing rib 4 has sufficient reinforcing performance on the one hand, and on the other hand, the reinforcing rib 4 itself has a certain deformation ability, which increases the toughness of the reinforcing rib 4.

[0019] As a specific embodiment of the improvement, the first rib 41 and the second rib 42 are both composed of two straight rods and one oblique rod, and the side edges of the two straight rods are respectively fixed on the two side edges of one oblique rod, so that the cross-section of the reinforcing rib 4 is in the shape of two upper and lower horseshoe-shaped bottoms connected. Through the arrangement of the above structure, more connection parts can be achieved between the reinforcing rib 4 and the hole wall of the pocket 2, so that the connection between the reinforcing rib 4 and the hole wall of the pocket 2 is more stable and reliable, while maintaining the original toughness.

[0020] In summary, the bearing retainer structure of this embodiment can make the retainer's center of mass position consistent with the steel ball's rotational center of mass position by providing an adjustment groove 3 on the outer edge of the hole wall of the pocket hole 2, thereby effectively improving the high-speed operation performance of the angular contact ball bearing.

[0021] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A bearing retainer structure, comprising an annular frame body (1) and a plurality of pockets (2) provided on one end surface of the frame body (1), wherein the plurality of pockets (2) are distributed in a circle with the center of the frame body (1) as the center, and characterized in that: The outer sides of the bottoms of several of the pockets (2) are provided with adjustment grooves (3) for keeping the center of mass of the cage consistent with the center of mass of the steel ball when the steel ball is placed in the pocket (2).

2. The bearing retainer structure according to claim 1, characterized in that: The positioning groove (3) is a circular arc groove structure.

3. The bearing retainer structure according to claim 1 or 2, characterized in that: A reinforcing rib (4) is fixed between two adjacent pockets (2).

4. The bearing retainer structure according to claim 3, characterized in that: The reinforcing rib (4) is composed of a first rib (41) and a second rib (42), both of which are long strip structures and are arranged obliquely between the two pockets (2) to intersect with each other so that the cross section of the reinforcing rib (4) is X-shaped.

5. The bearing retainer structure according to claim 4, characterized in that: The first rib (41) and the second rib (42) are both composed of two straight rods and one oblique rod, and the sides of the two straight rods are respectively fixed on the two side edges of one oblique rod, so that the cross section of the reinforcing rib (4) is in the shape of two horseshoe-shaped bottoms connected to each other.

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