High-vacuum high-low-temperature self-lubricating rolling bearing

Abstract

The utility model discloses a high vacuum high low temperature self-lubricating rolling bearing relates to self-lubricating rolling bearing field, including the bearing outer ring, the inside of bearing outer ring is rotatingly connected with the bearing inner ring, the outside of bearing inner ring and the inside of bearing outer ring are both connected with the ball in rolling mode, the bearing inner ring is connected with the ball in rolling mode. The bearing outer ring and the bearing inner ring are rotationally connected through balls, and a storage cavity is formed in the bearing outer ring. By the adoption of the structure, during use, lubricating oil enters the oil inlet plate through the oil inlet holes, then the lubricating oil in the oil inlet plate makes contact with the sponge mat, the sponge mat can be wetted by the lubricating oil, and then the automatic lubricating effect can be achieved when the balls make contact with the sponge mat when the bearing rolls; and meanwhile, waste of lubricating oil is avoided when oil is added in the mode, and the sponge cushion can be replaced after long-time use, so that the lubricating effect is improved.

Description

Technical Field

[0001] This utility model belongs to the field of self-lubricating rolling bearings, and specifically relates to a high-vacuum, high-low temperature self-lubricating rolling bearing. Background Technology

[0002] Bearings are critical components in mechanical transmission processes. While typically standard parts, they require specific conditions such as wide operating temperature ranges and stable performance, including vacuum environments. However, ordinary standard bearings often fail to meet these requirements due to limitations in material selection, dimensions, and manufacturing methods. This leads to problems such as improper installation and bearing seizure during high-temperature operation, ultimately rendering the entire machine unusable and causing incalculable economic losses for the user.

[0003] Chinese Patent No. CN222502406U discloses a self-lubricating rolling bearing, relating to the field of bearings. It includes an outer ring and an inner ring, with multiple balls placed between them. The inner wall of the outer ring has multiple slots. Two slide rails are fixedly connected to both the front and back of the outer ring, and two retaining rings are placed on both sides. These retaining rings are slidably connected to their adjacent slide rails. Each slide rail has a positioning groove on its side away from the outer ring, and these grooves completely penetrate the retaining rings. This self-lubricating rolling bearing, by installing retaining rings, can seal the gap between the outer and inner rings, preventing grease from leaking out and increasing grease consumption, thus extending grease lifespan. It also prevents the balls from derailing, achieving the purpose of limiting ball movement and preventing derailment.

[0004] As can be seen from the above structure, the gap between the outer ring and the inner ring of the bearing can be sealed by installing a retaining ring, which prevents grease from overflowing from the gap and aggravating grease consumption, thus increasing the service life of the grease. However, although the existing technology uses the bearing to fix and reduce the load friction coefficient during mechanical transmission, the problem of insufficient internal lubrication adjustment of the bearing during long-term use leads to excessive friction during device operation, resulting in a reduction in the overall service life of the device. Therefore, those skilled in the art provide a self-lubricating rolling bearing. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a high vacuum high and low temperature self-lubricating rolling bearing to solve the problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A high-vacuum, high-low temperature self-lubricating rolling bearing includes an outer bearing ring, an inner bearing ring rotatably connected inside the outer bearing ring, and balls rollingly connected to both the outer and inner sides of the inner and outer bearing rings. The outer and inner bearing rings are rotatably connected to each other via the balls. A storage cavity is formed inside the outer bearing ring, and a insertion groove is formed on the inner side of the outer bearing ring. An insertion hole is formed inside the insertion groove, and an oil inlet plate is inserted into the groove. A sponge pad is provided on the outer side of the oil inlet plate, and a insertion pipe is fixedly connected to the inner side of the oil inlet plate. Oil inlet holes are formed on the outer surface of the insertion pipe, and the insertion pipe and the sponge pad are connected to the oil inlet plate.

[0008] As a preferred technical solution, a connecting rod is inserted into the outer surface of the bearing outer ring, a rotating head is fixedly connected to the outer end of the connecting rod, a fixed external thread is formed on the outer surface of the other end of the connecting rod, a fixed internal thread is formed inside the insertion tube, and the fixed internal thread and the fixed external thread are threadedly connected to each other.

[0009] As a preferred technical solution, a hidden groove is provided on the outer surface of the bearing outer ring, the rotating head is inserted into the hidden groove, a fixed through hole is provided inside the hidden groove, the connecting rod is inserted into the fixed through hole, and a sealing gasket is provided at the contact point between the rotating head and the hidden groove.

[0010] As a preferred technical solution, both sides of the bearing inner ring and the bearing outer ring are rotatably connected to sealing cover plates, which cover the connection between the bearing inner ring and the bearing outer ring, and the outer surface of the sealing cover plates is provided with a protective layer.

[0011] As a preferred technical solution, the inner side of the sealing cover is slidably connected to the inner ring and outer ring of the bearing, and connecting grooves are provided on both sides of the inner ring and outer ring of the bearing. Connecting sliders are fixedly connected to the inner side of the sealing cover, and the connecting grooves and connecting sliders are slidably connected to each other.

[0012] As a preferred technical solution, an internal protective pad is fixedly connected to the inner side of the bearing inner ring, and an external protective pad is fixedly connected to the outer side of the bearing outer ring. Multiple external and internal protective pads are provided, and a high and low temperature resistant layer is provided on the outer surface of both the bearing inner ring and the bearing outer ring.

[0013] As a preferred technical solution, a first reinforcing diagonal rod is fixedly connected to the diagonal inside the storage cavity, and a second reinforcing diagonal rod is fixedly connected to the diagonal inside the storage cavity. The first reinforcing diagonal rod and the second reinforcing diagonal rod are arranged to cross each other. Reinforcing support rods are fixedly connected to both the upper and lower sides inside the storage cavity. The reinforcing support rods are arranged to cross each other with the first reinforcing diagonal rod and the second reinforcing diagonal rod.

[0014] In summary, the present invention has the following main advantages:

[0015] This invention first involves inserting the oil inlet plate into the insertion slot. After insertion, lubricating oil is added to the storage cavity through the fixed through hole. After lubricating oil is added, the connecting rod is inserted into the fixed through hole, with the other end of the connecting rod connected to the insertion tube. Then, the connecting rod can be rotated by turning the rotating head. Under the rotation of the connecting rod, the fixed internal and external threads can fix the insertion tube and the oil inlet plate. The rotating head entering the hidden groove does not affect the installation of the bearing. When in use, lubricating oil enters the oil inlet plate through the oil inlet hole. The lubricating oil inside the oil inlet plate then contacts the sponge pad, allowing the lubricating oil to wet the sponge pad. When the bearing rolls, the balls contact the sponge pad for automatic lubrication. This method of lubrication avoids waste of lubricating oil, and the sponge pad can be replaced after long-term use to increase the lubrication effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0018] Figure 3 This is a cross-sectional structural schematic diagram of the outer ring of the bearing of this utility model;

[0019] Figure 4 This is a utility model Figure 3 A schematic diagram of the side view structure;

[0020] Figure 5 This is a schematic diagram of the structure of the sealing cover plate of this utility model;

[0021] Figure 6 This is a utility model Figure 4 A magnified structural diagram of part A.

[0022] Reference numerals: 1. Bearing outer ring; 2. Bearing inner ring; 3. Ball; 4. External protective pad; 5. Internal protective pad; 6. Storage cavity; 7. Insertion groove; 8. Insertion hole; 9. Oil inlet plate; 10. Sponge pad; 11. Insertion pipe; 12. Oil inlet hole; 13. Fixed internal thread; 14. Rotating head; 15. Connecting rod; 16. Fixed external thread; 17. First reinforcing diagonal bar; 18. Second reinforcing diagonal bar; 19. Reinforcing support rod; 20. Connecting slide groove; 21. Connecting slider; 22. Sealing cover plate; 23. Hidden groove; 24. Fixed through hole. Detailed Implementation

[0023] Example

[0024] refer to Figures 1 to 6 This embodiment of a high-vacuum, high-low temperature self-lubricating rolling bearing includes an outer bearing ring 1, an inner bearing ring 2 rotatably connected inside the outer bearing ring 1, and balls 3 rollingly connected to both the outer side of the inner bearing ring 2 and the inner side of the outer bearing ring 1. The outer bearing ring 1 and the inner bearing ring 2 are rotatably connected to each other through the balls 3. A storage cavity 6 is provided inside the outer bearing ring 1, and an insertion groove 7 is provided on the inner side of the outer bearing ring 1. An insertion hole 8 is provided inside the insertion groove 7, and an oil inlet plate 9 is inserted into the insertion groove 7. A sponge pad 10 is provided on the outer side of the oil inlet plate 9, and an insertion pipe 11 is fixedly connected to the inner side of the oil inlet plate 9. An oil inlet hole 12 is provided on the outer surface of the insertion pipe 11. The insertion pipe 11 is connected to the oil inlet plate 9, and the sponge pad 10 is connected to the oil inlet plate 9.

[0025] refer to Figure 6 A connecting rod 15 is inserted into the outer surface of the outer ring 1 of the bearing. A rotating head 14 is fixedly connected to the outer end of the connecting rod 15. A fixed external thread 16 is opened on the outer surface of the other end of the connecting rod 15. A fixed internal thread 13 is opened inside the insertion tube 11. The fixed internal thread 13 and the fixed external thread 16 are threadedly connected to each other. By turning the rotating head 14, the connecting rod 15 is driven to rotate. Under the rotation of the connecting rod 15, the fixed internal thread 13 and the fixed external thread 16 can fix the insertion tube 11 and the oil inlet plate 9.

[0026] refer to Figure 4 The outer surface of the bearing outer ring 1 is provided with a hidden groove 23. The rotating head 14 is inserted into the hidden groove 23. The hidden groove 23 is provided with a fixed through hole 24. The connecting rod 15 is inserted into the fixed through hole 24. A sealing gasket is provided at the contact point between the rotating head 14 and the hidden groove 23. After the fixed external thread 16 and the fixed internal thread 13 are rotated through the hidden groove 23, the rotating head 14 enters the interior of the hidden groove 23, so as not to affect the installation of the bearing.

[0027] refer to Figure 3 and Figure 5 Both sides of the bearing inner ring 2 and bearing outer ring 1 are rotatably connected to sealing cover plates 22. The sealing cover plates 22 cover the connection between the bearing inner ring 2 and bearing outer ring 1. The outer surface of the sealing cover plates 22 is provided with a protective layer. The inner side of the sealing cover plates 22 is slidably connected to the bearing inner ring 2 and bearing outer ring 1. Both sides of the bearing inner ring 2 and bearing outer ring 1 are provided with connecting grooves 20. The inner side of the sealing cover plates 22 is fixedly connected to connecting sliders 21. The connecting grooves 20 and connecting sliders 21 are slidably connected to each other. The sealing cover plates 22 prevent dust in the air from entering the bearing outer ring 1 and bearing inner ring 2 during use. The connecting sliders 21 and connecting grooves 20 allow the sealing cover plates 22 to rotate with the bearing during use.

[0028] refer to Figure 1 An internal protective pad 5 is fixedly connected to the inner side of the bearing inner ring 2, and an external protective pad 4 is fixedly connected to the outer side of the bearing outer ring 1. Multiple external protective pads 4 and internal protective pads 5 are provided. The outer surfaces of both the bearing inner ring 2 and the bearing outer ring 1 are provided with a high and low temperature resistant layer. The internal protective pad 5 can prevent damage to the bearing inner ring 2 during installation, thus achieving the purpose of protecting the bearing inner ring 2. The internal protective pad 5 can protect the bearing outer ring 1 and prevent damage to the bearing outer ring 1 during installation. The high and low temperature resistant layer is made of polytetrafluoroethylene coating, which enables this bearing device to achieve high temperature and low temperature resistance.

[0029] refer to Figure 3 A first reinforcing diagonal rod 17 is fixedly connected to the diagonal inside the storage cavity 6, and a second reinforcing diagonal rod 18 is fixedly connected to the diagonal inside the storage cavity 6. The first reinforcing diagonal rod 17 and the second reinforcing diagonal rod 18 are arranged to cross each other. Reinforcing support rods 19 are fixedly connected to both the upper and lower sides inside the storage cavity 6. The reinforcing support rods 19 are arranged to cross each other with the first reinforcing diagonal rod 17 and the second reinforcing diagonal rod 18. The first reinforcing diagonal rod 17, the second reinforcing diagonal rod 18 and the reinforcing support rods 19 can provide support for the storage cavity 6, thereby increasing the compressive strength of the bearing body.

[0030] Operating principle and advantages: First, insert the oil inlet plate 9 into the insertion slot 7. After insertion, lubricating oil is added to the storage cavity 6 through the fixed through hole 24. After lubricating oil is added, insert the connecting rod 15 into the fixed through hole 24. During insertion, the other end of the connecting rod 15 is inserted into the insertion tube 11. Then, the connecting rod 15 can be rotated by turning the rotating head 14. The rotation of the connecting rod 15, along with the fixed internal thread 13 and fixed external thread 16, fixes the insertion tube 11 to the oil inlet plate 9. The rotating head 14 entering the hidden groove 23 does not affect the bearing installation. During use, lubricating oil enters the oil inlet plate 9 through the oil inlet hole 12, and then the lubricating oil inside the oil inlet plate 9 comes into contact with the sponge pad 10. This allows the lubricating oil to soak the sponge pad 10, and the first reinforcing diagonal bar 17, the second reinforcing diagonal bar 18, and the reinforcing support bar 19 provide support for the storage cavity 6, thereby increasing the bearing body's compressive strength. The internal protective pad 5 prevents damage to the bearing inner ring 2 during installation, thus protecting the bearing inner ring 2. The internal protective pad 5 also protects the bearing outer ring 1, preventing damage during installation. When the bearing rolls, the balls 3 contact the sponge pad 10 for automatic lubrication. This method of lubrication avoids oil waste, and the sponge pad 10 can be replaced after prolonged use to enhance lubrication.

Claims

1. A high-vacuum high-low-temperature self-lubricating rolling bearing, characterized by: The utility model provides a bearing outer ring (1), the inside rotation of bearing outer ring (1) is connected with bearing inner race (2), the outside of bearing inner race (2) is connected with the rolling ball (3) with the inside of bearing outer ring (1) all rolling, bearing outer ring (1) and bearing inner race (2) are connected with each other through rolling ball (3), the inside of bearing outer ring (1) is equipped with storage cavity (6), the inside of bearing outer ring (1) is equipped with the insertion slot (7), the inside of insertion slot (7) is equipped with the insertion hole (8), the inside of insertion slot (7) is inserted with the oil inlet plate (9), the outside of oil inlet plate (9) is provided with sponge pad (10), the inside of oil inlet plate (9) is fixedly connected with the insertion pipe (11), the outer surface of insertion pipe (11) all is equipped with oil inlet hole (12), and insertion pipe (11) is communicated with oil inlet plate (9), and sponge pad (10) is communicated with oil inlet plate (9).

2. The high vacuum high-low temperature self-lubricating rolling bearing according to claim 1, characterized in that: The outer surface of bearing outer ring (1) is inserted with connecting rod (15), the outer end of connecting rod (15) is fixedly connected with rotating head (14), the outer surface of the other end of connecting rod (15) is equipped with fixed external thread (16), the inside of insertion pipe (11) is equipped with fixed internal thread (13), and fixed internal thread (13) and fixed external thread (16) are connected with each other in thread.

3. The high vacuum high-low temperature self-lubricating rolling bearing according to claim 2, characterized in that: The outer surface of bearing outer ring (1) is equipped with hidden groove (23), and rotating head (14) and hidden groove (23) are inserted with each other, the inside of hidden groove (23) is equipped with fixed through hole (24), and connecting rod (15) and fixed through hole (24) are inserted with each other, and the abutment of rotating head (14) and hidden groove (23) is all provided with sealing pad.

4. The high vacuum high-low temperature self-lubricating rolling bearing according to claim 1, wherein: The both sides of bearing inner race (2) and bearing outer ring (1) are rotatably connected with sealing cover plate (22), and sealing cover plate (22) is wrapped with the connecting place of bearing inner race (2) and bearing outer ring (1), and the outer surface of sealing cover plate (22) is provided with protective layer.

5. The high vacuum high-low temperature self-lubricating rolling bearing according to claim 4, characterized in that: The inside of sealing cover plate (22) is slidably connected with bearing inner race (2) and bearing outer ring (1), and the both sides of bearing inner race (2) and bearing outer ring (1) are equipped with connecting sliding slot (20), and the inside of sealing cover plate (22) is all fixedly connected with connecting sliding block (21), and connecting sliding slot (20) and connecting sliding block (21) are slidably connected with each other.

6. The high vacuum high-low temperature self-lubricating rolling bearing according to claim 1, wherein: The inside of bearing inner race (2) is fixedly connected with internal protective pad (5), and the outside of bearing outer ring (1) is fixedly connected with external protective pad (4), and external protective pad (4) and internal protective pad (5) are all provided with a plurality of, and the outer surface of bearing inner race (2) and bearing outer ring (1) is provided with high and low temperature resistant layer.

7. The high vacuum high-low temperature self-lubricating rolling bearing according to claim 1, wherein: The inside of the storage cavity (6) is fixedly connected with a first reinforcing inclined rod (17) at the opposite corners, the inside of the storage cavity (6) is fixedly connected with a second reinforcing inclined rod (18) at the opposite corners, the first reinforcing inclined rod (17) and the second reinforcing inclined rod (18) are arranged in cross, and the inside of the storage cavity (6) is fixedly connected with reinforcing support rods (19) on the upper side and the lower side.

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