A lightweight bearing cage

Abstract

This utility model relates to the field of bearing cage technology, specifically a lightweight bearing cage, comprising a lower cage and an upper cage, the upper cage and the lower cage being mated and connected. Both the lower and upper cages consist of several cage beams and pockets, which are alternately connected end-to-end to form a ring frame. Corresponding pockets on the lower and upper cages together form pockets for accommodating rolling elements. A fixing mechanism is provided to fix the cage beams on the lower cage to their corresponding cage beams on the upper cage. This utility model, through the combined use of a four-pronged elastic clamp and mounting holes, achieves reliable connection and rapid assembly / disassembly of the upper and lower cages without the need for additional anchoring procedures, solving the problems of complex assembly processes and difficult maintenance caused by existing technologies relying on irreversible connection methods such as welding and riveting.

Description

Technical Field

[0001] This utility model relates to the field of bearing cage technology, specifically a lightweight bearing cage. Background Technology

[0002] With the increasing demands for miniaturization, efficiency, and energy conservation in fields such as aerospace, new energy vehicles, and high-speed precision machine tools, there is an urgent need for bearings and their cages to be lighter, have higher speeds, and better lubrication performance.

[0003] In the prior art, lightweight split bearing cages provide a feasible solution to the rolling element assembly problem. They are usually composed of a separable upper cage and a lower cage. However, during assembly, after the upper cage and the lower cage are assembled, additional, non-quickly disassembled anchoring processes (such as welding, riveting, or using threaded fasteners) are required to finally fix them together. The anchoring requirements not only increase the complexity of the assembly process and production time, but also make the disassembly and maintenance of the cage difficult. Utility Model Content

[0004] The purpose of this invention is to provide a lightweight bearing cage to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A lightweight bearing cage, comprising

[0007] The lower frame and the upper frame are connected together; both the lower frame and the upper frame are composed of several retaining beams and pockets, and the several retaining beams and pockets are connected end to end to form a ring frame.

[0008] The corresponding pockets on the lower and upper frames together form a pocket for accommodating the rolling element.

[0009] A fixing mechanism is used to fix the retaining beam on the lower frame to the corresponding retaining beam on the upper frame.

[0010] Preferably, the fixing mechanism includes a mounting hole that passes through the middle of the retainer beam on the upper frame and a four-pronged elastic clip that is fixedly connected to the top of the retainer beam on the lower frame.

[0011] Preferably, when the upper frame and the lower frame are connected, the four-claw elastic clamp is engaged and fixed with the mounting hole;

[0012] Preferably, an oil hole is provided through the middle of the pocket portion on both the lower frame and the upper frame;

[0013] Preferably, the lower frame body has positioning holes through both sides of the four-claw elastic clamp, and the upper frame body has positioning pins that match the positioning holes fixedly connected to the bottom ends of both sides of the mounting holes.

[0014] Preferably, when the upper frame and the lower frame are connected, the positioning pin is inserted into the positioning hole.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This lightweight bearing cage, through the cooperation of a four-jaw elastic clamp and mounting holes, achieves a reliable connection and quick assembly / disassembly of the upper and lower frames without the need for additional anchoring procedures. It solves the problems of complex assembly processes and difficult maintenance caused by existing technologies that rely on irreversible connection methods such as welding and riveting.

[0017] 2. This lightweight bearing cage achieves rapid and accurate pre-positioning when the upper and lower frames are aligned by using positioning pins and positioning holes, thus solving the problems of low assembly efficiency and high risk of misalignment caused by the lack of effective initial positioning in the prior art. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the oil hole structure of this utility model;

[0020] Figure 3 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0021] Figure 4 For the present utility model Figure 2 Enlarged diagram of point B in the middle.

[0022] In the diagram: 1. Lower frame; 2. Upper frame; 3. Cage beam; 4. Pocket; 5. Mounting hole; 6. Four-jaw elastic chuck; 7. Oil hole; 8. Positioning hole; 9. Positioning post. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-4As shown, this utility model provides a technical solution:

[0025] A lightweight bearing cage includes a lower cage body 1 and an upper cage body 2, which are mated and connected to the lower cage body 1. Both the lower cage body 1 and the upper cage body 2 consist of several cage beams 3 and pocket portions 4, which are alternately connected end-to-end to form a ring frame. Oil holes 7 are provided through the middle of the pocket portions 4 on both the lower cage body 1 and the upper cage body 2. Corresponding pocket portions 4 on the lower cage body 1 and the upper cage body 2 together form pockets for accommodating rolling elements. A fixing mechanism is provided to connect the cage beams 3 on the lower cage body 1 to the corresponding cage beams on the upper cage body 2. The three-phase fixing mechanism includes a mounting hole 5 through the middle of the retaining beam 3 on the upper frame 2, and a four-claw elastic clamp 6 fixedly connected to the top of the retaining beam 3 on the lower frame 1. When the upper frame 2 and the lower frame 1 are connected, the four-claw elastic clamp 6 is engaged and fixed with the mounting hole 5. The lower frame 1 has positioning holes 8 through the four-claw elastic clamp 6 on both sides. The upper frame 2 has positioning pins 9 fixedly connected to the bottom of both sides of the mounting hole 5, which match the positioning holes 8. When the upper frame 2 and the lower frame 1 are connected, the positioning pins 9 are inserted into the positioning holes 8.

[0026] In this embodiment, the use of positioning pin 9 and positioning hole 8 together achieves the effect of fast and accurate pre-positioning when the upper and lower frame 1 are aligned, which solves the problem of low assembly efficiency and high risk of misalignment caused by the lack of effective initial positioning in the prior art.

[0027] By using the four-claw elastic clamp 6 in conjunction with the mounting hole 5, the upper and lower frame bodies 1 can be reliably connected and quickly disassembled without additional anchoring procedures. This solves the problems of complex assembly processes and difficult maintenance caused by the reliance on irreversible connection methods such as welding and riveting in existing technologies.

[0028] Working principle: During assembly, the operator first places the rolling elements one by one into the pocket 4 of the lower frame 1. Then, the upper frame 2 is aligned with the lower frame 1 for engagement. At this time, the positioning pin 9 on the upper frame 2 first inserts into the positioning hole 8 of the lower frame 1 to achieve preliminary radial positioning and prevent misalignment. As the engagement continues, the four-jaw elastic clamp 6 on the retainer beam 3 of the lower frame 1 begins to enter the mounting hole 5 on the retainer beam 3 of the upper frame 2. The claw arms of the four-jaw elastic clamp 6 are squeezed as they pass through the mounting hole 5. The internal elastic deformation occurs. After the head of the four-jaw elastic chuck 6 completely passes through the mounting hole 5, its claw arms rely on their own elasticity to return to the open state, thereby locking onto the back of the mounting hole 5, realizing the firm locking of the lower frame 1 and the upper frame 2, thus forming a complete cage assembly. This assembly, through its pocket, jointly constrains the circumferential position of the rolling element. When the bearing is working, the cage rotates together with the rolling element. Lubricating oil or grease can enter the pocket through the oil hole 7 opened on the pocket part 4 to effectively lubricate and cool the rolling element.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lightweight bearing cage characterized by: include The lower frame (1) and the upper frame (2) are connected to each other; the lower frame (1) and the upper frame (2) are each composed of several retaining beams (3) and pockets (4), and the several retaining beams (3) and pockets (4) are connected end to end to form a ring frame. The corresponding pockets (4) on the lower frame (1) and the upper frame (2) together form a pocket for accommodating the rolling element; A fixing mechanism is used to fix the retaining beam (3) on the lower frame (1) to the corresponding retaining beam (3) on the upper frame (2).

2. The lightweight bearing cage of claim 1, wherein: The fixing mechanism includes a mounting hole (5) through the middle of the retainer beam (3) on the upper frame (2) and a four-claw elastic clip (6) fixedly connected to the top of the retainer beam (3) on the lower frame (1).

3. The lightweight bearing cage of claim 2, wherein: When the upper frame (2) and the lower frame (1) are engaged and connected, the four-claw elastic clamp (6) is engaged and fixed with the mounting hole (5).

4. The lightweight bearing cage of claim 3, wherein: Oil holes (7) are provided through the middle of the pockets (4) on both the lower frame (1) and the upper frame (2).

5. A lightweight bearing cage according to claim 4, characterized in that: The lower frame (1) has positioning holes (8) through both sides of the four-claw elastic clamp (6), and the upper frame (2) has positioning pins (9) that match the positioning holes (8) fixedly connected to the bottom ends of both sides of the mounting hole (5).

6. A lightweight bearing cage according to claim 5, characterized in that: When the upper frame (2) and the lower frame (1) are connected, the positioning pin (9) is inserted into the positioning hole (8).

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