A high speed angular contact ball bearing cage

Abstract

The utility model relates to bearing technical field discloses a kind of high-speed angular contact ball bearing retainer, including retainer body, the outer wall of retainer body is equipped with multiple pockets around, the outer wall of retainer body is provided with reinforcing mechanism, the inner wall of pocket is provided with lubricating mechanism, the outer wall of retainer body is provided with heat dissipation mechanism;The reinforcing mechanism includes two circumferential reinforcing ribs, multiple radial reinforcing ribs are fixedly connected between the adjacent of two The outer wall of retainer body is equipped with reserved groove one before and after side. In the utility model, circumferential reinforcing rib surrounds outer wall, radial reinforcing rib connects therebetween, respectively resist circumferential centrifugal force and radial force, prevent retainer in circumferential direction deformation and enhance radial rigidity. Inner reinforcing ring strengthens overall strength from inside. Commonly promote the strength and rigidity of retainer, reduce deformation, ensure bearing accuracy, avoid equipment failure.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and in particular to a cage for a high-speed angular contact ball bearing. Background Technology

[0002] Bearing cages, as a key component of bearings, play an indispensable role in bearing systems. Their primary function is to isolate the rolling elements within the bearing, ensuring a uniform distance between them and preventing collisions and friction. This guarantees smooth and stable bearing operation. Bearing cages are widely used in various rotating machinery. Working in conjunction with other bearing components, they support shaft rotation, transmit loads, and maintain the precision and stability of the equipment, playing a crucial role in its overall performance and reliability.

[0003] Existing high-speed angular contact ball bearing cages consist of an annular frame and pockets evenly distributed around the circumference of the frame. In practical applications, a high-speed rotating shaft drives the inner ring of the bearing to rotate, which in turn drives the rolling elements to roll between the inner and outer rings of the bearing. The pockets of the cage guide and constrain the movement trajectory of the rolling elements, keeping them evenly distributed. However, under prolonged high-speed operation, existing cages reveal significant shortcomings. During high-speed operation, the rolling elements generate continuous and substantial centrifugal and frictional forces against the pocket walls. Simultaneously, the cage itself also bears enormous centrifugal forces generated by high-speed rotation. Over time, these forces cause fatigue damage to gradually accumulate within the cage material. Furthermore, the existing cage design has limitations in terms of strength and rigidity, failing to effectively disperse and resist these forces. Over time, the cage will deform. Once the cage deforms, the shape and position of the pockets will change, causing the movement trajectory of the rolling elements to become uneven and unstable. This affects the bearing's rotational accuracy, increases vibration and noise, and the insufficient structural strength and rigidity design makes the cage prone to deformation, thus affecting bearing accuracy, increasing vibration and noise, and even causing equipment failure. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a high-speed angular contact ball bearing cage, which aims to improve the problem that the existing technology has insufficient structural strength and rigidity design, which makes the cage prone to deformation, thereby affecting the bearing accuracy, increasing vibration and noise, and even causing equipment failure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-speed angular contact ball bearing cage, comprising a cage body, wherein multiple pockets are provided around the outer wall of the cage body, a reinforcing mechanism is provided on the outer wall of the cage body, a lubrication mechanism is provided on the inner wall of the pockets, and a heat dissipation mechanism is provided on the outer wall of the cage body.

[0006] The reinforcement mechanism includes two circumferential reinforcing ribs, and multiple radial reinforcing ribs are fixedly connected between adjacent circumferential reinforcing ribs. The outer wall of the retainer body has a reserved groove 1 on both the front and rear sides, and multiple reserved grooves 2 are opened around the outer wall of the retainer body. The outer walls of the two circumferential reinforcing ribs are respectively fixedly connected to the inner walls of the corresponding reserved groove 1, and the outer walls of the multiple radial reinforcing ribs are respectively fixedly connected to the inner walls of the corresponding reserved grooves 2. The inner wall of the retainer body has an installation groove on both the front and rear sides, and an inner reinforcing ring is fixedly connected to the inner walls of the two installation grooves.

[0007] As a further description of the above technical solution:

[0008] The lubrication mechanism includes multiple friction-reducing layers, the outer walls of which are respectively fixedly connected to the inner walls of the corresponding pockets. An oil groove is provided in the middle of the inner wall of the cage body, and the oil groove communicates with the multiple pockets. An oil injection hole is provided at the top of the cage body, and the oil injection hole communicates with the oil groove.

[0009] As a further description of the above technical solution:

[0010] The heat dissipation mechanism includes multiple heat dissipation holes 1, which are equidistantly opened around the inner wall of the retainer body. Multiple heat dissipation holes 2 are equidistantly opened on the front and rear sides of the outer wall of the retainer body, and the multiple heat dissipation holes 2 are respectively connected to the corresponding heat dissipation holes 1.

[0011] As a further description of the above technical solution:

[0012] An oil hole plug is fixedly connected to the top of the inner wall of the oil injection hole, and a pinhole is opened in the middle of the oil hole plug.

[0013] As a further description of the above technical solution:

[0014] The adjacent sides of the multiple friction-reducing layers are chamfered, and the inner walls of the multiple friction-reducing layers are smoothed.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the cage body serves as the basic load-bearing and reinforcing mechanism. Circumferential reinforcing ribs surround the outer wall, and radial reinforcing ribs connect between them, respectively resisting circumferential centrifugal force and radial force, preventing deformation of the cage in the circumferential direction and enhancing radial rigidity. The two are firmly fixed in the reserved slot one and reserved slot two. The inner reinforcing ring is installed in the mounting slot to strengthen the overall strength from the inside. These structures work together to improve the strength and rigidity of the cage, reduce deformation, ensure bearing accuracy, reduce vibration and noise, and avoid equipment failure.

[0017] 2. In this utility model, the bearing performance is effectively improved by the coordinated structure of the friction-reducing layer, oil groove, and oil injection hole. The friction-reducing layer directly reduces the friction between the rolling elements and the inner wall of the pocket due to its low friction characteristics. The oil injection hole serves as the lubricating oil inlet and is connected to the oil groove for storing and distributing lubricating oil. After the lubricating oil is injected, it penetrates into each pocket through the oil groove and works in conjunction with the friction-reducing layer to solve the problems of wear and low operating efficiency caused by friction between the cage and the rolling elements in the prior art. It significantly reduces friction and wear and improves the operating efficiency and service life of the bearing. Attached Figure Description

[0018] Figure 1 This is a perspective view of a high-speed angular contact ball bearing cage proposed in this utility model;

[0019] Figure 2 This is a front view of a high-speed angular contact ball bearing cage proposed in this utility model;

[0020] Figure 3 This is a partial structural exploded view of a high-speed angular contact ball bearing cage proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of a reserved groove for a high-speed angular contact ball bearing cage according to the present invention;

[0022] Figure 5 This is a schematic diagram of a friction-reducing layer for a high-speed angular contact ball bearing cage proposed in this utility model;

[0023] Figure 6 This is a cross-sectional view of the cage body of a high-speed angular contact ball bearing cage according to the present invention.

[0024] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0025] Legend:

[0026] 1. Cage body; 2. Reinforcing mechanism; 201. Circumferential reinforcing rib; 202. Radial reinforcing rib; 203. Reserved groove one; 204. Reserved groove two; 205. Mounting groove; 206. Inner reinforcing ring; 3. Lubrication mechanism; 301. Friction-reducing layer; 302. Oil groove; 303. Oil injection hole; 4. Pocket; 5. Heat dissipation mechanism; 501. Heat dissipation hole one; 502. Heat dissipation hole two; 6. Oil hole blockage; 7. Pinhole. Detailed Implementation

[0027] 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.

[0028] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a high-speed angular contact ball bearing cage, comprising a cage body 1, which serves as the basic structure of the entire cage, providing a mounting base for other mechanisms and bearing various forces acting on the cage during operation. Multiple pockets 4 are provided around the outer wall of the cage body 1 to accommodate rolling elements, allowing them to move in an orderly manner under the constraint of the cage body 1. A reinforcing mechanism 2 is provided on the outer wall of the cage body 1 to enhance its structural strength and rigidity, thus coping with various forces generated during high-speed rotation and preventing deformation of the cage. A lubrication mechanism 3 is provided on the inner wall of the pockets 4, and a heat dissipation mechanism 5 is provided on the outer wall of the cage body 1.

[0029] The reinforcement mechanism 2 includes two circumferential reinforcing ribs 201, which surround the outer wall of the cage body 1 to enhance the cage's ability to resist centrifugal force in the circumferential direction. Multiple radial reinforcing ribs 202 are fixedly connected between adjacent circumferential reinforcing ribs 201, connecting adjacent circumferential reinforcing ribs 201 and enhancing the rigidity of the cage in the radial direction, enabling it to better resist the radial force exerted on the cage by the rolling elements. Pre-reserved slots 203 are provided on the front and rear sides of the outer wall of the cage body 1 to provide installation positions for the circumferential reinforcing ribs 201, allowing them to be firmly fixed to the outer wall of the cage body 1. Multiple pre-reserved slots 204 are provided around the outer wall of the cage body 1 to provide installation positions for the radial reinforcing ribs 202, ensuring a stable connection between the radial reinforcing ribs 202 and the cage body 1. The outer walls of the two circumferential reinforcing ribs 201 are respectively fixedly connected to the inner walls of the corresponding pre-reserved slots 203, allowing the circumferential reinforcing ribs 201 to stably perform their function of enhancing the structural strength in the circumferential direction. The outer walls of multiple radial stiffeners 202 are respectively fixedly connected to the inner walls of corresponding reserved slots 204, ensuring that the radial stiffeners 202 can effectively enhance the radial rigidity of the cage. Mounting slots 205 are provided on both the front and rear sides of the inner wall of the cage body 1 for mounting inner reinforcing rings 206, providing suitable mounting space for the inner reinforcing rings 206. Inner reinforcing rings 206 are fixedly connected to the inner walls of both mounting slots 205.

[0030] Specifically, in this high-speed angular contact ball bearing cage, the cage body 1 serves as the main structure, providing a mounting base for other components. Multiple pockets 4 around the outer wall accommodate the rolling elements. The reinforcing mechanism 2 strengthens the cage body 1, with two circumferential reinforcing ribs 201 arranged circumferentially along the outer wall of the cage body 1 to enhance its circumferential structural strength and resist centrifugal force generated by high-speed rotation. Multiple radial reinforcing ribs 202 connect adjacent circumferential reinforcing ribs 201, further reinforcing from the radial direction; both together enhance the overall rigidity of the cage. Pre-reserved grooves 203 on the front and rear sides of the outer wall of the cage body 1 are used to fix the circumferential reinforcing ribs 201, while pre-reserved grooves 204 around the outer wall fix the radial reinforcing ribs 202, ensuring stable installation of the reinforcing ribs. Mounting grooves 205 on the front and rear sides of the inner wall are used to install the inner reinforcing ring 206, which enhances the structural strength of the cage from the inside. The various components cooperate with each other, enabling the cage to better withstand various forces during high-speed operation, reducing the risk of deformation and ensuring stable bearing operation.

[0031] Reference Figure 4 , Figure 6 and Figure 7 The lubrication mechanism 3 includes multiple anti-friction layers 301 made of a low-friction coefficient material. Their function is to reduce the friction between the rolling elements and the inner wall of the pockets 4, thereby reducing heat and wear generated by friction and improving bearing operating efficiency. The outer walls of the multiple anti-friction layers 301 are fixedly connected to the inner walls of their respective pockets 4, ensuring that the anti-friction layers 301 can stably act on the contact area between the rolling elements and the pockets 4, effectively exerting their anti-friction function. An oil groove 302 is provided in the middle of the inner wall of the cage body 1 to store lubricating grease, providing a material basis for bearing lubrication and ensuring continuous lubrication. The oil groove 302 communicates with the multiple pockets 4, allowing the lubricating grease in the oil groove 302 to flow smoothly to each pocket 4, achieving comprehensive lubrication of the rolling elements. The top of the cage body 1 is provided with an oil injection hole 303, which is connected to the oil groove 302 to ensure that the lubricating grease injected from the oil injection hole 303 can flow smoothly into the oil groove 302 and then be distributed to each pocket 4 to achieve the effective operation of the entire lubrication system.

[0032] Specifically, multiple anti-friction layers 301 are fixed to the inner wall of the pockets 4. Utilizing their low-friction characteristics, they directly reduce the friction between the rolling elements and the pockets 4, thus reducing wear. The oil groove 302 in the middle of the inner wall of the cage body 1 plays a crucial role in storing and distributing lubricating oil. It communicates with the multiple pockets 4, providing a channel for lubricating oil to flow to the contact point between the rolling elements and the pockets 4. The oil injection hole 303 at the top of the cage body 1 is connected to the oil groove 302 and serves as the lubricating oil injection inlet. Lubricating oil is injected through the oil injection hole 303 and transported to each pocket 4 via the oil groove 302. Working in conjunction with the anti-friction layers 301, it achieves good lubrication, ensuring smooth and efficient bearing operation.

[0033] Reference Figure 1 , Figure 2 and Figure 4 The heat dissipation mechanism 5 includes multiple heat dissipation holes 501, which form heat dissipation channels inside the cage body 1, allowing heat generated inside the cage to be conducted away through these channels. The multiple heat dissipation holes 501 are equidistantly located around the inner wall of the cage body 1. This equidistant distribution helps to evenly conduct heat around the inner wall of the cage, preventing localized overheating. Multiple heat dissipation holes 502 are equidistantly located on the front and rear sides of the outer wall of the cage body 1, serving as outlets for heat dissipation from inside the cage to the external environment. Their equidistant location on the front and rear sides of the outer wall of the cage body 1 increases the heat dissipation area and improves heat dissipation efficiency. The multiple heat dissipation holes 502 are connected to their corresponding heat dissipation holes 501, ensuring that heat can be smoothly conducted from inside the cage through the heat dissipation holes 501 to the heat dissipation holes 502, and then dissipated into the surrounding environment, achieving effective heat dissipation of the cage.

[0034] Specifically, the cage body 1 serves as a carrier, on which components required for heat dissipation are distributed. Multiple heat dissipation holes 501, equidistantly spaced around the inner wall, cooperate with multiple heat dissipation holes 502, equidistantly spaced and connected to the front and rear sides of the outer wall. When the bearing generates heat during operation, the heat is conducted from inside the cage through the heat dissipation holes 501 to the heat dissipation holes 502. This increases the contact area between the cage and the air, accelerates airflow, and allows heat to be quickly dissipated into the surrounding environment, effectively reducing the cage temperature and preventing problems such as cage performance degradation and deformation due to high temperatures, thus ensuring the thermal stability of the high-speed angular contact ball bearing during operation.

[0035] Reference Figure 1 , Figure 5 and Figure 6 An oil hole plug 6 is fixedly connected to the top of the inner wall of the oil injection hole 303 to prevent external impurities from entering the cage through the oil injection hole 303, thus avoiding contamination of the lubrication system and ensuring lubrication effect and normal operation of the bearing. A pinhole 7 is provided in the middle of the oil hole plug 6 to control the flow rate of lubricating oil, allowing it to flow slowly and continuously from the oil injection hole 303 into the oil groove 302, achieving precise oil supply and avoiding waste. The adjacent sides of multiple friction-reducing layers 301 are chamfered to facilitate smoother entry and exit of the rolling elements from the pocket 4, reducing collisions and resistance between the rolling elements and the friction-reducing layers 301, thus reducing wear. The inner walls of multiple friction-reducing layers 301 are smoothed to further reduce the coefficient of friction between the friction-reducing layers 301 and the rolling elements, reducing heat and wear generated by friction, and improving the bearing's operating efficiency and service life.

[0036] Specifically, the oil plug 6 at the top of the inner wall of the oil injection hole 303 cooperates with the central pinhole 7. The oil plug 6 prevents impurities from entering the oil injection hole 303, while the pinhole 7 controls the slow outflow of lubricating oil, achieving precise oil supply. Multiple anti-friction layers 301 have chamfered edges on adjacent sides to facilitate smooth entry and exit of the rolling elements from the pocket 4, and their smooth inner walls further reduce friction with the rolling elements. The coordinated action of these components enhances lubrication and ensures stable bearing operation.

[0037] Working Principle: The cage body 1 is the basic structure, supporting other mechanisms. The reinforcing mechanism 2 plays a crucial role. Circumferential reinforcing ribs 201 are arranged around the outer wall of the cage body 1, and radial reinforcing ribs 202 are connected between adjacent circumferential reinforcing ribs 201. When the cage rotates at high speed, the circumferential reinforcing ribs 201 effectively resist the circumferential centrifugal force generated by high-speed rotation, preventing the cage from expanding or contracting in the circumferential direction. The radial reinforcing ribs 202 enhance the rigidity of the cage in the radial direction, resisting the radial force exerted on the cage by the rolling elements. They are fixed in the first and second reserved slots 203 and 204, respectively, ensuring a stable connection. At the same time, the inner reinforcing ring 206 is installed in the mounting slot 205, further enhancing the overall structural strength of the cage from the inside. Through the synergy of the components of the reinforcing mechanism 2, the strength and rigidity of the cage are improved, deformation is effectively reduced, thereby ensuring bearing accuracy, reducing vibration and noise, and preventing equipment failure.

[0038] The lubrication mechanism 3 aims to reduce friction between the cage and the rolling elements, ensuring smooth bearing operation. The anti-friction layer 301 adheres to the inner wall of the pockets 4 and possesses low-friction properties, directly reducing friction between the rolling elements and the inner wall of the pockets 4 at the contact surface. The oil groove 302 in the middle of the inner wall of the cage body 1 is a key component for storing and distributing lubricating oil and is connected to multiple pockets 4. The oil injection hole 303 at the top is the lubricating oil inlet and communicates with the oil groove 302. When lubricating oil is injected through the oil injection hole 303, it flows into the oil groove 302 and permeates into each pocket 4 through the connecting structure, working synergistically with the anti-friction layer 301 to further reduce friction, decrease wear, and improve bearing operating efficiency and service life.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-speed angular contact ball bearing cage, comprising a cage body (1), characterized in that: The outer wall of the retainer body (1) is provided with multiple pockets (4) around its perimeter. The outer wall of the retainer body (1) is provided with a reinforcing mechanism (2). The inner wall of the pockets (4) is provided with a lubrication mechanism (3). The outer wall of the retainer body (1) is provided with a heat dissipation mechanism (5). The reinforcement mechanism (2) includes two circumferential reinforcing ribs (201), and multiple radial reinforcing ribs (202) are fixedly connected between adjacent circumferential reinforcing ribs (201). The outer wall of the retainer body (1) is provided with a reserved groove 1 (203) on both the front and rear sides. The outer wall of the retainer body (1) is provided with multiple reserved grooves 2 (204) on all four sides. The outer walls of the two circumferential reinforcing ribs (201) are respectively fixedly connected to the inner walls of the corresponding reserved groove 1 (203). The outer walls of the multiple radial reinforcing ribs (202) are respectively fixedly connected to the inner walls of the corresponding reserved grooves 2 (204). The inner wall of the retainer body (1) is provided with an installation groove (205) on both the front and rear sides. The inner walls of the two installation grooves (205) are fixedly connected with an inner reinforcing ring (206).

2. The high-speed angular contact ball bearing cage according to claim 1, characterized in that: The lubrication mechanism (3) includes multiple friction-reducing layers (301), the outer walls of the multiple friction-reducing layers (301) are respectively fixedly connected to the inner walls of the corresponding pockets (4), an oil groove (302) is provided in the middle of the inner wall of the retainer body (1), the oil groove (302) is connected to the multiple pockets (4), and an oil injection hole (303) is provided at the top of the retainer body (1), the oil injection hole (303) is connected to the oil groove (302).

3. The high-speed angular contact ball bearing cage according to claim 1, characterized in that: The heat dissipation mechanism (5) includes a plurality of heat dissipation holes (501), which are equidistantly opened around the inner wall of the retainer body (1). A plurality of heat dissipation holes (502) are equidistantly opened on the front and rear sides of the outer wall of the retainer body (1), and the plurality of heat dissipation holes (502) are respectively connected to the corresponding heat dissipation holes (501).

4. A high-speed angular contact ball bearing cage according to claim 2, characterized in that: An oil hole plug (6) is fixedly connected to the top of the inner wall of the oil injection hole (303), and a pinhole (7) is opened in the middle of the oil hole plug (6).

5. A high-speed angular contact ball bearing cage according to claim 2, characterized in that: The adjacent sides of the plurality of friction-reducing layers (301) are chamfered, and the inner walls of the plurality of friction-reducing layers (301) are smoothed.

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