Bearing protection system
By installing a first ring around the outer ring of the bearing, an annular air curtain and uniform lubrication are formed, which solves the problem of accelerated wear of traditional bearings in dusty environments, and achieves effective contaminant blocking and lubrication, making it suitable for high-speed rotation conditions.
Patent Information
- Application Number
- CN202520375717.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-03-05
AI Technical Summary
Traditional bearings are prone to dust particles entering in dusty environments, leading to accelerated wear and affecting normal operating accuracy and equipment performance.
A bearing protection system was designed. By fitting a first ring around the outer ring of the bearing, an annular air curtain is formed using a first channel and an air outlet to block external contaminants from entering. At the same time, lubricating oil is provided through a second channel and an oil outlet to ensure uniform lubrication of the bearing surface.
It effectively prevents dust and liquid contaminants from entering the bearing, reduces frictional heat, improves lubrication uniformity, enhances sealing stability, is suitable for high-speed rotation conditions, and improves the overall performance and reliability of the bearing.
Smart Images
Figure CN223622039U_ABST
Abstract
Description
Technical Field
[0001] The embodiments disclosed herein relate to the field of bearing housing technology, and more specifically, to a bearing protection system. Background Technology
[0002] In the field of mechanical transmission, traditional bearings, as a key component, are widely used in various mechanical equipment, such as automobile engines, industrial motors, and machine tools. Their function is to support rotating shafts and reduce friction between the shafts and the supporting structure. However, the structural design of traditional bearings makes them susceptible to contact with the external environment during operation. In dusty environments, dust particles can easily enter the bearing and accumulate between the rolling elements and raceways, which not only accelerates wear but also affects the bearing's normal operating accuracy and reduces the overall performance of the equipment. Utility Model Content
[0003] To overcome the above-mentioned defects, the embodiments of this disclosure provide a bearing protection system that solves the technical problem in the related art that dust particles can easily enter the bearing, aggravate wear, and affect the normal operation of the bearing.
[0004] According to one aspect, at least one embodiment of this disclosure provides a bearing protection system, comprising: a first collar for being fitted onto a bearing, the first collar having a first channel arranged in a direction parallel to the axial direction of the first collar;
[0005] The first channel has a first air inlet and an air outlet on its side wall. There are at least two air outlets, which are divided into two groups. The two groups of air outlets are located at the two axial ends of the bearing and face the middle of the first collar.
[0006] For example, in a bearing protection system provided by at least one embodiment of this disclosure, each group of air outlets has at least two outlets, which are arranged at circumferential intervals along the first collar.
[0007] For example, in a bearing protection system provided by at least one embodiment of this disclosure, the first collar further has a second channel, the arrangement direction of the second channel being parallel to the axial direction of the first collar;
[0008] The second channel has a second air inlet, a first oil inlet, and a first oil outlet on its side wall, with the first oil outlet tilted toward the bearing.
[0009] For example, in a bearing protection system provided by at least one embodiment of this disclosure, the first oil outlet has a plurality of outlets and is evenly spaced along the circumference of the first collar.
[0010] For example, in a bearing protection system provided by at least one embodiment of this disclosure, a plurality of first oil outlets are divided into two groups, and the two groups of first oil outlets are respectively located at both ends of the axial direction of the bearing.
[0011] For example, in a bearing protection system provided by at least one embodiment of this disclosure, the first oil outlet includes a plurality of oil outlet holes.
[0012] For example, in a bearing protection system provided by at least one embodiment of this disclosure, a second sleeve ring is further included, which is sleeved on the first sleeve ring. The second sleeve ring has an oil cavity, and a second oil inlet and a second oil outlet are provided on the side wall of the oil cavity. The second oil outlet is connected to the first oil inlet.
[0013] For example, in a bearing protection system provided by at least one embodiment of this disclosure, a turntable is further included, which is rotatably mounted on the second collar. The turntable has a third air inlet, and after the turntable rotates, the third air inlet is connected to the first air inlet or the second air inlet.
[0014] For example, in a bearing protection system provided by at least one embodiment of this disclosure, the third air inlet has a plurality of ports.
[0015] For example, in a bearing protection system provided by at least one embodiment of this disclosure, the system further includes a housing, wherein the first collar is disposed on the housing.
[0016] The beneficial effects of the embodiments disclosed herein are as follows:
[0017] In this disclosure, the first sleeve ring is directly fitted onto the outer ring of the bearing, forming a tight fit or clearance fit (selected according to actual operating conditions). The first channel extends axially along the first sleeve ring, with its axis parallel to the bearing's rotation axis. The first air inlet is located on the side wall of the first channel and is used to connect to an external compressed air source. Two sets of air outlets are located at the axial ends of the bearing (i.e., near the left and right end faces of the bearing). All air outlets face the center of the first sleeve ring (i.e., the central area of the bearing).
[0018] Compressed air enters the first channel through the first inlet, forming a stable airflow within the channel. As the airflow exits from the two sets of outlets, because the outlets face the center of the bearing ring, the airflow from both sides converges in the central area of the bearing, forming an "annular air curtain" covering the outer surface of the bearing. This prevents external dust, liquids, and other contaminants from intruding into the bearing from both axial ends. The continuous airflow creates a slightly positive pressure environment around the bearing, further inhibiting contaminant penetration. The high-speed airflow can carry away the frictional heat generated by the bearing's operation, reducing the operating temperature. The two sets of outlets are located on both sides of the bearing, ensuring that the air curtain covers the entire length of the bearing and avoiding blind spots. The convergence of the airflow from both sides at the center forms a dynamic vortex, improving the sealing stability of the air curtain, which is particularly suitable for high-speed rotation conditions. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of this disclosure;
[0021] Figure 2 This is a schematic diagram of the structure of this disclosure (excluding the base);
[0022] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of AA;
[0023] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure of BB;
[0024] Figure 5 This is a schematic diagram of the exploded structure (excluding the base) disclosed herein.
[0025] In the diagram: 1. First collar; 101. First channel; 102. First air inlet; 103. Air outlet; 104. Second channel; 105. Second air inlet; 106. First oil inlet; 107. First oil outlet; 108. Oil outlet hole; 2. Second collar; 201. Oil chamber; 202. Second oil inlet; 203. Second oil outlet; 3. Turntable; 301. Third air inlet; 4. Base; 5. Bearing. Detailed Implementation
[0026] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.
[0027] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0028] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0029] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0030] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.
[0031] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0032] like Figures 1-5 As shown, a bearing protection system according to an embodiment of the present disclosure is illustrated, comprising: a first collar 1 for fitting onto a bearing 5, the first collar 1 having a first channel 101 arranged in a direction parallel to the axial direction of the first collar 1; a first air inlet 102 and an air outlet 103 are provided on the side wall of the first channel 101, the air outlet 103 having at least two and divided into two groups, the two groups of air outlets 103 being located at the two axial ends of the bearing 5 and facing the middle of the first collar 1.
[0033] For example, such as Figure 1As shown, the first collar 1 is directly fitted onto the outer ring of the bearing 5, forming a tight fit or clearance fit (selected according to actual working conditions). The first channel 101 is a channel extending axially along the first collar 1, and its axis is parallel to the rotation axis of the bearing 5. The first air inlet 102 is located on the side wall of the first channel 101 and is used to connect to an external compressed air source. Two sets of air outlets 103 are located at the axial ends of the bearing 5 (i.e., near the left and right end faces of the bearing 5). All air outlets 103 face the middle of the first collar 1 (i.e., the central area of the bearing 5).
[0034] Compressed air enters the first channel 101 through the first inlet 102, forming a stable airflow within the first channel 101. When the airflow exits from the two sets of outlets 103, because the outlets 103 face the center of the bearing ring, the airflows on both sides converge in the central area of the bearing 5, forming an "annular air curtain" covering the outer surface of the bearing 5. This prevents external dust, liquids, and other contaminants from intruding into the bearing 5 from both axial ends. The continuous airflow creates a slightly positive pressure environment around the bearing 5, further inhibiting contaminant penetration. The high-speed airflow can carry away the frictional heat generated by the bearing 5's operation, reducing the operating temperature. The two sets of outlets 103 are located on both sides of the bearing 5, ensuring that the air curtain covers the entire length of the bearing 5, avoiding blind spots. The convergence of the airflows on both sides at the center forms a dynamic vortex, improving the sealing stability of the air curtain, which is especially suitable for high-speed rotation conditions.
[0035] In some examples, each set of air outlets 103 has at least two and is arranged at circumferential intervals along the first set of rings 1.
[0036] For example, each group of air outlets 103 has at least two outlets 103 (e.g., 3-6 outlets per group, the specific number adjusted according to the size of bearing 5). The outlets 103 in the same group are distributed at equal angular intervals along the circumference of the first ring 1 (e.g., three outlets 103 arranged at 120° intervals). After the outlets 103 in each group are arranged circumferentially, compressed air is simultaneously ejected from multiple points at both ends of the bearing 5's axial direction, forming a continuous annular air curtain rather than a discrete airflow, thus expanding the coverage area. Furthermore, under the same total flow rate, the diversion of airflow by multiple outlets 103 can reduce the flow rate requirement of a single outlet 103, reducing shear losses between the airflow and the bearing 5's surface.
[0037] In some examples, the first ring 1 also has a second channel 104, the arrangement direction of the second channel 104 being parallel to the axial direction of the first ring 1; a second air inlet 105, a first oil inlet 106 and a first oil outlet 107 are provided on the side wall of the second channel 104, the first oil outlet 107 being inclined toward the bearing 5.
[0038] For example, such as Figure 4As shown, the second air inlet 105 is located on the side wall of the second channel 104 and is connected to an external compressed air source (it can share an air source with the first air inlet 102 or be controlled independently). The first oil inlet 106 is connected to an external lubricating oil supply system (such as an oil pump or oil sump) for introducing lubricating oil. The first oil outlet 107 is located on the side wall of the second channel 104 and is designed at an angle (forming an angle of 15°-45° with the radial direction of the bearing 5), pointing directly to the raceway or cage area of the bearing 5.
[0039] Compressed air enters the second channel 104 through the second air inlet 105, forming a high-speed airflow. The mixed atomized oil droplets are sprayed out from the first oil outlet 107 with the airflow, evenly covering the lubrication parts (such as rollers and raceways) of the bearing 5.
[0040] The tilt angle of the oil outlet ensures that the lubricating oil is accurately sprayed to the high-friction areas of the bearing (such as the contact point between the roller end face and the cage), optimizing the lubrication effect.
[0041] In some examples, there are several first oil outlets 107, which are evenly spaced along the circumference of the first ring 1.
[0042] For example, such as Figure 4 As shown, there are several first oil outlets 107, the specific number of which can be adjusted according to the size of the bearing 5 and lubrication requirements (for example, 3-6 oil outlets can be set on each first ring 1). The first oil outlets 107 are evenly spaced along the circumference of the first ring 1 to ensure that the lubricating oil can be evenly distributed to the entire surface of the bearing 5. The tilt angle of each oil outlet is consistent to ensure that the lubricating oil is accurately sprayed to the high-friction area of the bearing 5. The even distribution of multiple oil outlets allows the lubricating oil to more comprehensively cover the entire surface of the bearing 5, further improving the uniformity and reliability of the lubrication of the bearing 5.
[0043] In some examples, several first oil outlets 107 are divided into two groups, with the two groups of first oil outlets 107 located at the two axial ends of the bearing 5, respectively.
[0044] For example, such as Figure 4 As shown, several first oil outlets 107 are divided into two groups, with each group of outlets located at both axial ends of the bearing 5. This two-group design allows the lubricating oil to more comprehensively cover the entire surface of the bearing 5, especially the high-friction areas at both axial ends. The airflow generated by the two groups of outlets can form an air curtain on both sides of the bearing 5, further enhancing its protective effect, preventing external contaminants from entering, and reducing the problem of insufficient local lubrication.
[0045] In some examples, the first oil outlet 107 has multiple oil outlet holes 108.
[0046] For example, such as Figure 4As shown, the design of multiple oil outlet holes 108 allows lubricating oil to be sprayed more evenly to each lubrication point, reducing the problem of insufficient local lubrication. Preferably, the oil outlet holes 108 can be configured as fan-shaped, and multiple fan-shaped oil outlet holes 108 can form a more effective air curtain, further enhancing the protection effect of the bearing 5 and preventing external contaminants from entering.
[0047] In some examples, it also includes: a second sleeve ring 2, which is sleeved on the first sleeve ring 1. The second sleeve ring 2 has an oil cavity 201. A second oil inlet 202 and a second oil outlet 203 are provided on the side wall of the oil cavity 201. The second oil outlet 203 is connected to the first oil inlet 106.
[0048] For example, such as Figure 4 As shown, lubricating oil enters the oil chamber 201 of the second sleeve ring 2 from the second oil inlet 202. The oil chamber 201 is used to store and distribute the lubricating oil. The lubricating oil flows out from the second oil outlet 203 and enters the first oil inlet 106. The connection between the second oil outlet 203 and the first oil inlet 106 forms a continuous oil path, ensuring the smooth flow of lubricating oil.
[0049] In some examples, the turntable 3 is rotatably mounted on the second ring 2. The turntable 3 has a third air inlet 301. After the turntable 3 rotates, the third air inlet 301 is connected to the first air inlet 102 or the second air inlet 105.
[0050] For example, such as Figure 3 and Figure 4 As shown, the third air inlet 301 on the turntable 3 can be connected to either the first air inlet 102 or the second air inlet 105 as needed. By rotating the turntable 3, the air path can be flexibly switched to achieve gas supply under different operating conditions.
[0051] When the third air inlet 301 is connected to the first air inlet 102, compressed air passes through the third air inlet 301 and the first air inlet 102 in sequence and enters the first channel 101. Then it is ejected from the two air outlets 103, forming an air curtain at both ends of the bearing 5 in the axial direction.
[0052] When the third air inlet 301 is connected to the second air inlet 105, compressed air passes through the third air inlet 301 and the second air inlet 105 and enters the second channel 104. Then it is sprayed out in the two first oil outlets 107 and sprayed toward the location of the ball part of the bearing 5.
[0053] By rotating the turntable 3, it can be selectively connected to either the first air inlet 102 or the second air inlet 105, enabling dynamic adjustment of the air path and improving the system's adaptability and reliability.
[0054] In some examples, there are several third air inlets 301. The first ring 1 is disposed on the base 4.
[0055] For example, such as Figure 5 As shown, multiple third air inlets 301 provide more air intake options, making air path switching more flexible. Even if one air inlet is blocked or damaged, the other air inlets can still work normally, improving system reliability. Multiple air inlets can be evenly distributed on the turntable 3, ensuring more uniform gas distribution and improving lubrication and protection.
[0056] The housing 4 provides stable support for the first ring 1, ensuring its stability during operation. Through these improvements, the bearing 5 protection system not only enhances flexibility and reliability but also optimizes overall performance, making it suitable for applications under various complex working conditions.
[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.
Claims
1. A bearing protection system, characterized in that, include: The first collar (1) is used to be sleeved on the bearing (5), and the first collar (1) has a first channel (101); The first channel (101) has a first air inlet (102) and an air outlet (103) on its side wall. There are at least two air outlets (103), which are divided into two groups. The two groups of air outlets (103) are located at the two axial ends of the bearing (5) and face the middle of the first collar (1).
2. The bearing protection system according to claim 1, characterized in that, Each set of air outlets (103) has at least two, and they are arranged at circumferential intervals along the first collar (1).
3. The bearing protection system according to claim 1, characterized in that, The first collar (1) also has a second channel (104), the arrangement direction of the second channel (104) being parallel to the axial direction of the first collar (1); The second channel (104) has a second air inlet (105), a first oil inlet (106) and a first oil outlet (107) on its side wall. The first oil outlet (107) is located at one axial end of the bearing (5) and is inclined toward the bearing (5).
4. A bearing protection system according to claim 3, characterized in that, The first oil outlet (107) has several outlets, and they are evenly spaced along the circumference of the first collar (1).
5. A bearing protection system according to claim 4, characterized in that, Several first oil outlets (107) are divided into two groups, and the two groups of first oil outlets (107) are located at the two axial ends of the bearing (5).
6. A bearing protection system according to claim 4, characterized in that, The first oil outlet (107) includes multiple oil outlet holes (108).
7. A bearing protection system according to claim 5, characterized in that, Also includes: The second ring (2) is sleeved on the first ring (1). The second ring (2) has an oil cavity (201). The side wall of the oil cavity (201) is provided with a second oil inlet (202) and a second oil outlet (203). The second oil outlet (203) is connected to the first oil inlet (106).
8. A bearing protection system according to claim 7, characterized in that, Also includes: A turntable (3) is rotatably mounted on the second ring (2). The turntable (3) has a third air inlet (301). After the turntable (3) rotates, the third air inlet (301) is connected to the first air inlet (102) or the second air inlet (105).
9. A bearing protection system according to claim 8, characterized in that, The third air inlet (301) has several.
10. A bearing protection system according to claim 1, characterized in that, Also includes: The first collar (1) is disposed on the seat (4).