Retainer assembly for high rotational speed

Abstract

The utility model provides a retainer assembly for high rotation speed, which comprises two symmetrically arranged semi-ring pieces, each semi-ring piece comprises a connecting part and an arc-shaped part, the connecting parts and the arc-shaped parts are alternately arranged along the circumferential direction, the connecting parts are provided with clamping heads and clamping grooves, and the clamping heads and the clamping grooves are connected with the semi-ring pieces. The clamping head extends towards the other half ring piece, the clamping head can extend into the clamping groove of the other half ring piece to be matched with the clamping groove in a clamping mode, and the arc-shaped portions of the two half ring pieces can form a pocket for filling a roller after being spliced. Aiming at the defects in the prior art, the utility model provides the retainer assembly for the high rotating speed, which has stronger stability and is not easy to generate abnormal noise.

Description

Technical Field

[0001] This utility model relates to the field of bearing cages, and in particular to a cage assembly for high-speed bearings. Background Technology

[0002] The cage is an important component of a bearing. All bearings use cages to evenly separate the rollers, preventing them from contacting each other, reducing friction and wear. During bearing operation, the cage guides the rolling elements to move on the correct track, ensuring even distribution of the rolling elements and reducing stress concentration. Depending on the type of bearing, the cage also needs to be adapted and improved. For example, in applications involving long-term high-speed operation, existing nylon cages have an asymmetrical opening on one side, which can easily lead to imbalance and abnormal noise under such operating conditions. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a cage assembly for high-speed applications that offers greater stability and reduces the likelihood of abnormal noise.

[0004] To achieve the above objectives, this utility model provides a cage assembly for high-speed operation, comprising two symmetrically arranged semi-rings. Each semi-ring includes a connecting portion and an arc-shaped portion, which are alternately arranged circumferentially. The connecting portion is provided with a locking head and a locking groove. The locking head extends toward the other semi-ring and can be inserted into the locking groove of the other semi-ring to form a locking engagement. The arc-shaped portions of the two semi-rings, when joined together, can form a pocket for roller filling.

[0005] The advantages of the above technical solution are as follows: By setting two symmetrical semi-ring parts, a connecting part and an arc-shaped part are set in the semi-ring parts, and the connecting part and the arc-shaped part are alternated in the circumferential direction. The connecting part is provided with a locking head and a locking groove. The locking head and the locking groove on the connecting part of the two semi-ring parts can form a locking fit. The arc-shaped part of the semi-ring parts is set to form a pocket for roller filling after splicing, so as to form a complete cage. Since the two semi-ring parts are symmetrical and the locking head and the locking groove are used to complete the locking fit, an interlocking is formed. The structure and weight of both sides are the same, thereby ensuring smooth operation under high-speed and long-range rotation conditions and reducing the generation of abnormal noise.

[0006] The present invention can be further configured such that: the connecting part is provided with a hole, the root of the card head is provided on one side wall of the hole and forms an abutment surface, and the card slot is composed of the card head, the abutment surface and the hole.

[0007] By further designing the connection part, a hole is provided, allowing the card head to extend from one side wall of the hole and form an abutment surface. The card head, the abutment surface, and the hole form a card groove, allowing the card head and the card groove to fit together. During the self-locking process, the card head passes into the card groove and finally forms a snap-fit ​​at the abutment surface.

[0008] The present invention can be further configured such that the card head includes a conical portion, and the conical portion is gradually reduced in the direction of extension.

[0009] By further designing the device, a cone is provided on the card head. When the two card heads move towards each other and come into contact, the two cones can be used to guide the card heads to swing elastically and pass smoothly. After entering the card slot, the large end of the cone and the contact surface abut against each other to form a self-locking mechanism.

[0010] The present invention can be further configured such that: the hole includes an opening, the opening is located at a position opposite to the extension direction of the connector head, and the opening is connected to the groove.

[0011] By further designing the hole, an opening is provided on the hole, and the opening connects to the slot, making it easier to set up the clip and the slot.

[0012] The present invention can be further configured such that: the arc-shaped part includes an abutment platform located in its middle, and the abutment platforms of two corresponding arc-shaped parts are arranged opposite to each other.

[0013] By further configuring the design, an abutment platform is installed in the middle of the arc-shaped section, and the two abutment platforms of the corresponding arc-shaped sections are positioned opposite each other. After the rollers are installed, the contact area between the abutment platform and the rollers is reduced through contact between the abutment platform and the rollers, effectively controlling the temperature rise. In addition, the abutment platform can form a gap between itself and the arc-shaped section and the rollers, effectively locking in the grease and ensuring the lubrication effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the semi-ring component in an embodiment of the present invention. Figure 1 ;

[0017] Figure 4 This is a schematic diagram of the structure of the semi-ring component in an embodiment of the present invention. Figure 2 ;

[0018] Among them: semi-ring 1; connecting part 11; arc-shaped part 12; abutting platform 121; clamp head 13; cone part 131; abutting surface 132; groove 14; opening 15; pocket 2. Detailed Implementation

[0019] An embodiment of this utility model for a cage assembly used at high speeds is shown below. Figure 1-4 As shown: It includes two symmetrically arranged semi-ring parts 1. Each semi-ring part 1 includes a connecting part 11 and an arc-shaped part 12. The connecting part 11 and the arc-shaped part 12 are alternately arranged in the circumferential direction. The connecting part 11 is provided with a locking head 13 and a locking groove 14. The locking head 13 extends towards the other semi-ring part 1 and can be inserted into the locking groove 14 of the other semi-ring part to form a locking engagement. After the arc-shaped parts 13 of the two semi-ring parts 1 are joined together, they can form a pocket 2 for filling rollers.

[0020] The connecting part 11 is provided with a hole, the root of the card head 13 is located on one side wall of the hole and forms an abutment surface 132, and the card groove 14 is composed of the card head 13, the abutment surface 132 and the hole.

[0021] The card head 13 includes a cone portion 131, which is gradually reduced in size in the extending direction.

[0022] The hole includes an opening 15, which is located at a position opposite to the extension direction of the connector 13, and the opening 15 is connected to the groove 14.

[0023] The arc-shaped portion 12 includes an abutment platform 121 located in its middle, and the abutment platforms 121 of the two corresponding arc-shaped portions are arranged opposite to each other.

[0024] The above examples are merely one preferred embodiment of this utility model. Ordinary variations and substitutions made by those skilled in the art within the scope of this utility model's technical solution are all included within the protection scope of this utility model.

Claims

1. A cage assembly for high rotational speeds, characterized in that: The application relates to a half-ring assembly, which comprises two symmetrically arranged half-rings, the half-rings comprising connecting portions and arc-shaped portions which are alternately arranged in the circumferential direction, the connecting portions being provided with clamping heads and clamping grooves, the clamping heads extending towards the other half-ring and being capable of extending into the clamping grooves of the other half-ring to form clamping connection, the arc-shaped portions of the two half-rings being capable of forming pockets for filling rollers after being spliced, the connecting portions being provided with hole portions, the roots of the clamping heads being arranged at the side walls of the hole portions and being provided with abutting surfaces, the clamping grooves being formed by the clamping heads, the abutting surfaces and the hole portions, the hole portions comprising openings which are arranged at positions of the connecting portions away from the extending direction of the clamping heads, the openings being provided with communicating grooves, the arc-shaped portions comprising abutting platforms at the middle portions, and the abutting platforms of the two corresponding arc-shaped portions being oppositely arranged.

2. The cage assembly for high rotational speeds according to claim 1, characterized in that: The clamping heads comprise tapering portions which are arranged to be gradually smaller towards the extending direction.

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