Heat dissipation type dustproof oil bearing

Abstract

The utility model relates to the technical field of bearings, and discloses a heat dissipation type dustproof oil bearing which comprises an inner ring, an outer ring is arranged outside the inner ring, an upper end cover is arranged on the upper portion of the outer ring, a lower end cover is arranged on the lower portion of the outer ring, and installation assemblies are arranged outside the upper end cover and the lower end cover. An oil injection assembly is arranged on the upper portion of the upper end cover, balls are arranged in the middle of the inner ring and the middle of the outer ring, fixing assemblies are arranged outside the balls, and heat dissipation assemblies are installed on the two sides in the upper end cover and the two sides in the lower end cover. The oil injection assembly comprises an oil injection port, and the oil injection port is formed in the upper portion of the upper end cover. According to the utility model, when lubricating oil is filled into the bearing, the end cover outside the bearing does not need to be detached, and the lubricating oil can be filled by taking out the sealing cover from the interior of the oil filling port of the bearing end cover, so that the risk that the lubricating oil is exposed in the external environment is effectively reduced, and the lubricating effect of bearing operation is improved.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and in particular to a heat-dissipating, dustproof, oil-impregnated bearing. Background Art

[0002] Oil-impregnated bearings are a type of self-lubricating bearing. They are made of porous materials and achieve long-term self-lubrication by impregnating them with lubricating oil. The design of this type of bearing allows the lubricating oil to be released to the friction surfaces through capillary action or temperature rise during operation, thereby lubricating and reducing friction.

[0003] A search of Chinese patent document CN211820405U reveals a heat-dissipating, dustproof, oil-impregnated bearing, comprising a bearing body with at least six circumferentially distributed axial through holes on its wall. A left end cap is fixed to the left end of the bearing body, and a right end cap is fixed to the right end. A left heat dissipation strip extending into the axial through holes is connected to the inner side of the left end cap, and a right heat dissipation strip extending into the axial through holes is connected to the inner side of the right end cap. The left and right heat dissipation strips are staggered. Heat dissipation fins are respectively provided on the outer sides of the left and right end caps. In this invention, the heat generated by the bearing during operation is transferred to the left and right end caps respectively through the axial through holes via the left and right heat dissipation strips. Combined with the heat dissipation fins, the heat is dissipated into the air, thereby ensuring that the internal temperature of the oil-impregnated bearing is maintained within a suitable range and improving heat dissipation. Simultaneously, the left and right end caps fixed to both ends of the bearing body also improve dustproof performance and reduce bearing wear.

[0004] Although the aforementioned patent can achieve heat dissipation and dust prevention for the bearing, when adding lubricating oil to the bearing, the left and right end caps need to be removed. When removing the end caps, the lubricating oil may leak or be contaminated by external pollutants, reducing the lubrication effect. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a heat-dissipating, dustproof, oil-impregnated bearing, which aims to improve the problem in the prior art that the left and right end caps need to be removed when adding lubricating oil to the bearing.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A heat-dissipating, dustproof, oil-impregnated bearing includes an inner ring, an outer ring outside the inner ring, an upper end cover on the upper part of the outer ring, a lower end cover on the lower part of the outer ring, mounting components on the exterior of both the upper and lower end covers, an oil injection component on the upper part of the upper end cover, balls in the middle of the inner and outer rings, a fixing component on the exterior of the balls, and heat dissipation components installed on both sides inside the upper and lower end covers.

[0008] The oil filling assembly includes an oil filling port, which is located on the upper part of the upper end cover. A connecting plate is installed outside the oil filling port, and a sealing cap is fixedly connected to the top of the connecting plate. The sealing cap engages with the oil filling port.

[0009] Furthermore, the mounting assembly includes protrusions, which are fixedly connected to the outer sides of the upper end cover and the lower end cover. The inner sides of the outer ring are provided with slots, and multiple protrusions are inserted into multiple slots. The protrusions are made of rubber.

[0010] Furthermore, the heat dissipation component includes heat dissipation holes, which are opened on both sides of the interior of the upper end cover and the lower end cover, and heat dissipation blocks are installed inside each of the multiple heat dissipation holes.

[0011] Furthermore, the fixing component includes an upper retainer disposed above the ball, a lower retainer disposed below the ball, and insert blocks fixedly connected to both sides of the upper part of the lower retainer.

[0012] Furthermore, the upper retainer has insertion holes on both sides inside, and the multiple insertion blocks are inserted into the multiple insertion holes.

[0013] Furthermore, the heat sink is made of aluminum alloy.

[0014] Furthermore, both the upper retainer and the lower retainer are made of nylon.

[0015] Furthermore, both the inner ring and the outer ring are made of stainless steel.

[0016] This utility model has the following beneficial effects:

[0017] In this invention, when it is necessary to inject lubricating oil into the bearing, simply remove the sealing cap from the oil inlet for injection. After injection, the sealing cap can be replaced with the oil inlet by moving the connecting plate. The operation can be completed without disassembling the bearing end cover. This design effectively reduces the risk of lubricating oil being exposed to the outside environment, improves the lubrication effect, and increases the bearing operating efficiency.

[0018] In this invention, when installing the upper and lower end caps, simply align the external protrusions with the slots on the outer ring and insert them. The rubber protrusions are flexible and elastic, making the insertion process smooth, reducing alignment accuracy requirements, simplifying operation, and saving assembly time.

[0019] In this invention, when the bearing dissipates heat, the heat is transferred to the heat sink through the heat dissipation holes, and then guided to the outside by the heat sink, which effectively reduces the bearing temperature rise, prevents overheating, maintains the stability of the lubricating oil, and extends the bearing life. Attached Figure Description

[0020] Figure 1 This is a perspective view of a heat-dissipating, dustproof, oil-impregnated bearing proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the oil inlet structure of a heat-dissipating, dustproof, oil-impregnated bearing proposed in this utility model;

[0022] Figure 3 This is a schematic diagram showing the disassembled structure of a heat-dissipating, dustproof, oil-impregnated bearing proposed in this utility model.

[0023] Figure 4 This is a schematic diagram of the disassembled structure of the heat sink block of a heat dissipation type dustproof oil-impregnated bearing proposed in this utility model.

[0024] Legend:

[0025] 1. Inner ring; 2. Outer ring; 3. Upper end cover; 4. Lower end cover; 5. Lower retainer; 6. Insert block; 7. Upper retainer; 8. Insertion hole; 9. Protrusion; 10. Slot; 11. Heat dissipation hole; 12. Heat dissipation block; 13. Oil inlet; 14. Connecting plate; 15. Sealing cover; 16. Ball bearing. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Reference Figures 1-4This utility model provides an embodiment of a heat-dissipating, dustproof, oil-impregnated bearing, including an inner ring 1, an outer ring 2 outside the inner ring 1, an upper end cover 3 on the upper part of the outer ring 2, and a lower end cover 4 on the lower part of the outer ring 2. The upper and lower end covers 3 and 4 provide dust protection for the bearing. Mounting components are provided on the exterior of both the upper and lower end covers 3 and 4 for mounting them. An oil injection component is provided on the upper part of the upper end cover 3 for adding lubricating oil to the bearing. A ball bearing 16 is provided in the middle of the inner ring 1 and the outer ring 2. A fixing component is provided on the outside of the ball bearing 16. Through the constraint of the fixing component, the ball bearing 16 can move stably between the inner ring 1 and the outer ring 2, thereby ensuring the rotational accuracy of the bearing. Heat dissipation components are installed on both sides of the inner end cover 3 and the lower end cover 4, so that the heat generated by the bearing can be quickly transferred to the surface of the end cover through the heat dissipation components. The inner ring 1 and the outer ring 2 are both made of stainless steel, which can effectively reduce the surface wear of the inner ring 1 and the outer ring 2 during the rolling of the ball bearing 16 and extend the service life of the bearing.

[0028] The oil filling assembly includes an oil filling port 13, which is located on the upper part of the upper end cover 3. A connecting plate 14 is installed on the outside of the oil filling port 13. A sealing cover 15 is fixedly connected to the top of the connecting plate 14. The sealing cover 15 engages with the oil filling port 13, thereby sealing the oil filling port 13.

[0029] Specifically, when it is necessary to inject lubricating oil into the bearing, firstly, the sealing cap 15 is removed from the inside of the oil inlet 13. Then, lubricating oil is added into the bearing through the oil inlet 13. After the addition is completed, the externally fixed sealing cap 15 is moved by the moving connecting plate 14, and the sealing cap 15 is put back on the outside of the oil inlet 13, ensuring that the sealing cap 15 and the oil inlet 13 fit tightly to achieve a good sealing effect. This allows the lubricating oil to be added without removing the external end cap of the bearing, effectively avoiding the risk of the lubricating oil being directly exposed to the external environment, preventing external pollutants such as dust, impurities, and moisture from entering the bearing, ensuring the cleanliness of the lubricating oil, making the lubrication effect more durable, and extending the service life of the bearing.

[0030] Reference Figure 4 The mounting components include protrusions 9, which are fixedly connected to the outer sides of the upper end cover 3 and the lower end cover 4. The inner sides of the outer ring 2 are provided with slots 10. Multiple protrusions 9 are inserted into multiple slots 10, which improves the stability of the installation of the upper end cover 3 and the lower end cover 4. The protrusions 9 are made of rubber. The rubber protrusions 9 have a certain degree of flexibility and can be easily deformed and restored to their original shape during the installation process, reducing the precision requirements of the installation and improving the assembly efficiency.

[0031] Specifically, when installing the upper cover 3 and the lower cover 4, the protrusions 9 fixed on the outer sides of the upper cover 3 and the lower cover 4 are aligned with the slots 10 opened inside the outer ring 2. Then, the protrusions 9 can be gently pushed into the slots 10 to complete the fixation. Since the protrusions 9 are made of rubber, they are flexible and elastic, and can adapt to slight alignment deviations when inserted into the slots 10, making the insertion process smoother and eliminating the need for high-precision alignment operations, thus greatly reducing the difficulty of installation.

[0032] Reference Figures 2-4 The heat dissipation assembly includes heat dissipation holes 11, which are located on both sides of the inner surface of the upper end cover 3 and the lower end cover 4. Each heat dissipation hole 11 has a heat sink 12 installed inside. The heat sink 12 is made of aluminum alloy, which has a high thermal conductivity and can quickly transfer the heat generated by the bearing and dissipate it to the outside air through its surface, thereby effectively reducing the internal temperature of the bearing. The fixing assembly includes an upper cage 7, which is located on the upper part of the ball 16. A lower cage 5 is located on the lower part of the ball 16. Insert blocks 6 are fixedly connected to both sides of the upper part of the lower cage 5. Insert holes 8 are opened on both sides of the inner surface of the upper cage 7. Multiple insert blocks 6 are inserted into multiple insert holes 8. Both the upper cage 7 and the lower cage 5 are made of nylon. Nylon has excellent flexibility and vibration damping performance, which can absorb some of the vibration and impact generated during the operation of the bearing and significantly reduce the operating noise of the bearing.

[0033] Specifically, during bearing heat dissipation, the heat generated during bearing operation is first transferred to the heat dissipation hole 11. The heat dissipation hole 11 serves as a heat transfer channel, concentrating and guiding the heat to the heat sink 12. The heat sink 12 is made of aluminum alloy, which can quickly absorb the heat transferred from the heat dissipation hole 11 and exchange heat with the outside air through its surface, dissipating the heat to the external environment. When installing the lower cage 5 and the upper cage 7, firstly, the upper cage 7 is installed on the upper part of the ball 16. Then, the insert 6 fixed on the upper part of the lower cage 5 is aligned with the insertion hole 8 opened inside the upper cage 7. Finally, the insert 6 is inserted into the insertion hole 8 to complete the installation of the upper cage 7 and the lower cage 5. By installing the cage on the outside of the ball 16, the ball 16 can be guided to roll along the set track, preventing the ball 16 from deviating or going out of control during high-speed operation, and ensuring the operating accuracy of the bearing.

[0034] Working principle: When it is necessary to inject lubricating oil into the bearing, firstly, the sealing cover 15 is removed from the inside of the oil filling port 13 to add lubricating oil. After the addition is completed, the externally fixed sealing cover 15 is moved by the moving connecting plate 14 and then the sealing cover 15 is put back on the outside of the oil filling port 13. This realizes that when adding lubricating oil into the bearing, it is not necessary to disassemble the external end cover of the bearing. The lubricating oil can be added by simply removing the sealing cover 15 from the inside of the oil filling port 13 of the bearing end cover. This effectively reduces the risk of lubricating oil being exposed to the external environment and improves the lubrication effect of the bearing operation.

[0035] When installing the upper end cover 3 and the lower end cover 4, align the protrusions 9 fixed on the outer sides of the upper end cover 3 and the lower end cover 4 with the slots 10 opened inside the outer ring 2. Then, insert the protrusions 9 into the slots 10. Since the protrusions 9 are made of rubber, they have a certain degree of flexibility and elasticity, making the insertion process into the slots 10 smoother, reducing the accuracy requirements of alignment, thereby simplifying the installation operation and saving assembly time.

[0036] When the bearing dissipates heat, the heat generated by the bearing is transferred to the heat dissipation hole 11. The heat dissipation hole 11 serves as a heat transfer channel, guiding the heat to the heat sink 12. Finally, the heat is guided from the heat dissipation hole 11 to the outside through the heat sink 12. This can quickly reduce the temperature rise of the bearing during operation, prevent overheating inside the bearing, maintain the stability of the lubricating oil, and extend the bearing life.

[0037] 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 heat-dissipating, dustproof, oil-impregnated bearing, comprising an inner ring (1), characterized in that: An outer ring (2) is provided outside the inner ring (1). An upper end cover (3) is provided on the upper part of the outer ring (2). A lower end cover (4) is provided on the lower part of the outer ring (2). An installation component is provided on the outside of both the upper end cover (3) and the lower end cover (4). An oil injection component is provided on the upper part of the upper end cover (3). A ball bearing (16) is provided in the middle of the inner ring (1) and the outer ring (2). A fixing component is provided on the outside of the ball bearing (16). Heat dissipation components are installed on both sides inside the upper end cover (3) and the lower end cover (4). The oil filling assembly includes an oil filling port (13), which is located on the upper part of the upper end cover (3). A connecting plate (14) is installed on the outside of the oil filling port (13), and a sealing cover (15) is fixedly connected to the top of the connecting plate (14). The sealing cover (15) engages with the oil filling port (13).

2. The heat-dissipating, dustproof, oil-impregnated bearing according to claim 1, characterized in that: The mounting assembly includes a protrusion (9), which is fixedly connected to the outer sides of the upper end cover (3) and the lower end cover (4). The inner sides of the outer ring (2) are provided with slots (10). Multiple protrusions (9) are inserted into multiple slots (10). The material of the protrusion (9) is rubber.

3. The heat-dissipating, dustproof, oil-impregnated bearing according to claim 1, characterized in that: The heat dissipation assembly includes heat dissipation holes (11), which are opened on both sides of the interior of the upper end cover (3) and the lower end cover (4). Heat dissipation blocks (12) are installed inside each of the multiple heat dissipation holes (11).

4. The heat-dissipating, dustproof, oil-impregnated bearing according to claim 1, characterized in that: The fixing component includes an upper retainer (7), which is disposed on the upper part of the ball (16), and a lower retainer (5) is disposed on the lower part of the ball (16). Insert blocks (6) are fixedly connected to both sides of the upper part of the lower retainer (5).

5. A heat-dissipating, dustproof, oil-impregnated bearing according to claim 4, characterized in that: The upper retainer (7) has insertion holes (8) on both sides inside, and multiple insertion blocks (6) are inserted into multiple insertion holes (8).

6. A heat-dissipating, dustproof, oil-impregnated bearing according to claim 3, characterized in that: The heat sink (12) is made of aluminum alloy.

7. A heat-dissipating, dustproof, oil-impregnated bearing according to claim 4, characterized in that: Both the upper retainer (7) and the lower retainer (5) are made of nylon.

8. A heat-dissipating, dustproof, oil-impregnated bearing according to claim 1, characterized in that: Both the inner ring (1) and the outer ring (2) are made of stainless steel.

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