Slewing support bearing

Abstract

The utility model discloses a slewing support bearing, which relates to the technical field of slewing support bearings and comprises a bearing body, balls are mounted on the inner side of the bearing body, a groove is formed in the top end of the bearing body, a pressing block is mounted at the bottom end of the inner side of the groove, and a spring buckle is mounted at the bottom end of the pressing block. And one side of the spring buckle is fixedly connected with a push block. By the adoption of the structure, the sealing cover is clamped at the top end of the bearing body, the pressing cover is pressed through the first sliding groove, the clamping plate can be clamped into the slope-shaped first clamping groove through downward pressing of the pressing cover, meanwhile, the pressing block can be pressed, the spring buckle can be pressed by the pressing block, and the first pressing is springback; when the sealing cover needs to be opened, the pressing cover is pressed again, the spring buckle pressed for the second time rebounds along with the pressing cover, and then the clamping plate can be ejected out of the limiting groove through the through opening and the push block so that the clamping plate can be normally pulled out.

Description

Technical Field

[0001] The utility model belongs to the technical field of slewing support bearings, in particular to a slewing support bearing. Background Art

[0002] The slewing bearing is a large bearing that can withstand comprehensive loads. It can simultaneously withstand large axial and radial loads and overturning moments. In real industry, it is widely used in large rotating devices such as lifting machinery, mining machinery, construction machinery, port machinery, and ship machinery.

[0003] Chinese patent publication number "CN220929940U" discloses a slewing support bearing, relating to the field of bearing technology. The bearing comprises an outer ring with a sealing groove defined on its upper end surface, symmetrically defined sliding holes defined on its inner wall, and a sealing assembly disposed on the inner surface of the sealing groove; the sealing assembly includes a sealing strip. In this utility model, a sealing cover, a sealing strip, a clamping block, a first spring, a telescopic rod, a mounting groove, a sealing groove, and a sliding hole are used in conjunction with each other.

[0004] However, this bearing still has some shortcomings. After a long period of use, in order not to affect the normal use in the future, lubricating oil will be added to the inside of the bearing regularly. When adding lubricating oil, the sealing cover that prevents dust from entering needs to be opened. This will cause dust and lubricating oil to enter the inside of the bearing together, affecting the normal use of the bearing in the future and greatly reducing the service life of the bearing itself. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the present invention is to provide a slewing support bearing to solve the problems raised by the above background technology.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] The slewing support bearing includes a bearing body, a ball bearing is installed on the inner side of the bearing body, the top of the bearing body is provided with a groove, the inner bottom end of the groove is provided with a pressing block, the bottom end of the pressing block is provided with a spring clip, one side of the spring clip is fixedly connected with a push block, the inner bottom end of the groove is provided with a second slot, the inner side of the second slot is provided with a through opening, the push block is located on the inner side of the through opening, a limiting groove is provided on the inner side of the second slot, the top of the bearing body is clamped with a sealing cover, the inner side of the sealing cover is slidably connected with the pressing cover, the inner side of the sealing cover is provided with a first slide groove matching the pressing cover, the pressing cover is slidably connected to the inner side of the sealing cover through the first slide groove, the bottom end of the pressing cover is rotatably connected to a connecting shaft, the bottom end of the connecting shaft is fixedly connected with a card plate matching the second slot, and the card plate is clamped on the inner side of the second slot.

[0008] As an optimal technical solution, the bottom end of the sealing cover is fixedly connected with a clamping block, and the top end of the bearing body is provided with a first clamping groove matching the clamping block. The clamping block is fixedly connected to the four sides of the bottom end of the sealing cover near the corners, and the clamping block is clamped into the inside of the first clamping groove. The sealing cover is clamped to the top end of the bearing body through the clamping block and the first clamping groove.

[0009] As an optimal technical solution, the bottom end of the sealing cover is fixedly connected to a first sealing ring, the clamping plate is located close to the inner side of the first sealing ring, and a circular groove matching the first sealing ring is opened at the top of the bearing body, and the first sealing ring covers the inner side of the circular groove.

[0010] As an optimal technical solution, a feed port is provided at the top of the sealing cover, the position of the feed port is symmetrical with the position of the ball, the top of the sealing cover is slidably connected to a protective plate, the protective plate covers the top of the feed port, the top of the sealing cover is threadedly connected to a protective cover, the protective cover covers the top of the sealing cover, and a second sealing ring is fixedly connected to the inner wall of the feed port, and the top of the second sealing ring is in contact with the bottom end of the protective plate.

[0011] As an optimal technical solution, a second slide groove matching the protective plate is provided at the top of the sealing cover, and the protective plate is slidably connected to the top of the sealing cover through the second slide groove. A socket is provided at the top of the protective plate, and a plug-in plate is inserted into the inner side of the socket. A slot matching the plug-in plate is provided at the top of the sealing cover, and the position of the slot corresponds to the position of the plug-in plate.

[0012] As an optimal technical solution, a rectangular opening is opened at the top of the protective plate, which passes through the protective plate. Transparent glass is fixedly connected to the inner side of the rectangular opening, covering the inner side of the rectangular opening. The position of the transparent glass is symmetrical with the position of the ball.

[0013] As an optimal technical solution, a thread groove is provided at the top of the sealing cover, a connecting frame is fixedly connected to the bottom end of the protective plate, an external thread matching the thread groove is provided on the outside of the connecting frame, the connecting frame is threadedly connected to the inner side of the thread groove through the external thread, and the protective cover is threadedly connected to the top of the sealing cover through the connecting frame, the external thread and the thread groove.

[0014] In summary, the present invention has the following beneficial effects:

[0015] When the cam is in use, the sealing cover is clamped on the top of the bearing body to prevent dust from entering the interior of the bearing body, and then the pressing cover is pressed through the first sliding groove. The downward pressure of the pressing cover can make the card plate clamped in the sloped first clamping groove, and at the same time, the pressing block is pressed. The pressing block can press the spring buckle. The first press is a rebound, which does not prevent the card plate from normally clamping in the limiting groove inside the first clamping groove, thereby effectively limiting the position of the sealing cover. When the sealing cover needs to be opened, the pressing cover is pressed again, and the spring buckle pressed for the second time will rebound, and then the card plate can be pushed out of the limiting groove through the through-hole and the pushing block, so that the card plate can be normally withdrawn, thereby achieving the purpose of facilitating the disassembly and assembly of the sealing cover for later maintenance of the interior of the bearing body;

[0016] Second, when it is necessary to add lubricating oil to the ball bearing at a later stage, the protective cover is first opened through the thread principle, and then the insert plate is pulled out of the insert, so that the user can slide the protective plate through the second slide groove. After the protective plate is slid open, its feed port will be exposed, and the user can directly add lubricating oil to the ball bearing position through the feed port, and there is no need to open the entire sealing cover to add lubricating oil. While achieving the convenience of adding lubricating oil, it also effectively solves the problem of dust easily entering the inside of the bearing body during the addition of lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the bottom structure of the protective cover of the utility model;

[0019] Figure 3 This is a schematic diagram of the top structure of the sealing cover of the utility model;

[0020] Figure 4 This utility model Figure 3 A schematic diagram of the enlarged structure of part A;

[0021] Figure 5 This is a schematic diagram of the inner structure of the bearing body of the utility model;

[0022] Figure 6 This is a schematic diagram of the bottom structure of the sealing cover of the utility model;

[0023] Figure 7 It is a schematic cross-sectional structural diagram of the first card slot of the present invention.

[0024] Figure markings: 1. bearing body; 2. ball; 3. circular groove; 4. first slot; 5. groove; 6. pressing block; 7. spring buckle; 8. push block; 9. through port; 10. second slot; 11. limit slot; 12. sealing cover; 13. pressing cover; 14. first slide; 15. first sealing ring; 16. clamping block; 17. connecting shaft; 18. clamping plate; 19. feed port; 20. second sealing ring; 21. second slide; 22. protective plate; 23. socket; 24. plug-in plate; 25. slot; 26. rectangular port; 27. transparent glass; 28. threaded groove; 29. ​​protective cover; 30. connecting frame; 31. external thread. DETAILED DESCRIPTION

[0025] Example

[0026] refer to Figures 1 to 7 The slewing support bearing of this embodiment includes a bearing body 1, a ball 2 is installed on the inner side of the bearing body 1, a groove 5 is opened at the top of the bearing body 1, a pressing block 6 is installed at the bottom end of the inner side of the groove 5, a spring clip 7 is installed at the bottom end of the pressing block 6, a push block 8 is fixedly connected to one side of the spring clip 7, a second slot 10 is opened at the bottom end of the inner side of the groove 5, a through-opening 9 is opened on the inner side of the second slot 10, the push block 8 is located on the inner side of the through-opening 9, a limiting groove 11 is opened on the inner side of the second slot 10, and the bearing body 1 is provided with a plurality of grooves. The top end is clamped with a sealing cover 12, and the inner side of the sealing cover 12 is slidably connected to a pressing cover 13. The inner side of the sealing cover 12 is provided with a first sliding groove 14 that matches the pressing cover 13. The pressing cover 13 is slidably connected to the inner side of the sealing cover 12 through the first sliding groove 14. The bottom end of the pressing cover 13 is rotatably connected to a connecting shaft 17. The bottom end of the connecting shaft 17 is fixedly connected to a card plate 18 that matches the second card slot 10. The card plate 18 is clamped to the inner side of the second card slot 10. When in use, due to the presence of the sealing cover 12, the card plate 18 is clamped to the inner side of the second card slot 10. The sealing cover 12 is connected to the top of the bearing body 1 according to the connection principle, which can effectively protect the top of the bearing body 1 and prevent dust from entering the interior of the bearing body 1. In order to improve the stability of the fixed position of the sealing cover 12, the user can press the pressing cover 13 through the first sliding groove 14. The downward pressure of the pressing cover 13 can make the card plate 18 fit into the sloped first card groove 4, and at the same time press the pressing block 6. The pressing block 6 can press the spring buckle 7. The first press is a rebound, which can make the push block 8 be recovered to the passage. The inner side of the opening 9 can not hinder the card plate 18 from being normally inserted into the limiting groove 11 on the inner side of the first card slot 4, thereby effectively improving the stability of the fixed position of the sealing cover 12. When the sealing cover 12 needs to be opened, the pressing cover 13 is pressed again, and the spring buckle 7 pressed for the second time will rebound, and then the card plate 18 can be pushed out of the limiting groove 11 through the through opening 9 and the push block 8, so that the card plate 18 can be normally withdrawn, and at the same time, the purpose of facilitating the disassembly and assembly of the sealing cover 12 for later maintenance of the interior of the bearing body 1 is achieved.

[0027] refer to Figures 1 to 7 The bottom end of the sealing cover 12 is fixedly connected with a clamping block 16, and the top of the bearing body 1 is provided with a first clamping groove 4 that matches the clamping block 16. The clamping block 16 is fixedly connected to the four sides of the bottom end of the sealing cover 12 near the corners, and the clamping block 16 is clamped into the inside of the first clamping groove 4. The sealing cover 12 is clamped to the top end of the bearing body 1 through the clamping block 16 and the first clamping groove 4. Due to the existence of the first clamping block 16, the clamping of the first clamping block 16 can effectively limit the position of the sealing cover 12, while improving the clamping stability of the sealing cover 12 position, it can also effectively improve the accuracy of the clamping of the clamping plate 18 position.

[0028] refer to Figure 5 and Figure 6 The bottom end of the sealing cover 12 is fixedly connected with a first sealing ring 15, and the clamping plate 18 is located on the inner side close to the first sealing ring 15. The top of the bearing body 1 is provided with a circular groove 3 matching the first sealing ring 15, and the first sealing ring 15 covers the inner side of the circular groove 3. Due to the presence of the first sealing ring 15, when the sealing cover 12 is clamped, the first sealing ring 15 can effectively seal the connection point between the sealing cover 12 and the bearing body 1, thereby effectively improving the overall sealing of the bearing body 1.

[0029] refer to Figures 1 to 4 , a feed port 19 is provided at the top of the sealing cover 12, and the position of the feed port 19 is symmetrical with the position of the ball 2. A protective plate 22 is slidably connected to the top of the sealing cover 12, and the protective plate 22 covers the top of the feed port 19. The top of the sealing cover 12 is threadedly connected to a protective cover 29, and the protective cover 29 covers the top of the sealing cover 12. A second sealing ring 20 is fixedly connected to the inner wall of the feed port 19, and the top of the second sealing ring 20 is affixed to the bottom end of the protective plate 22. A second slide groove 21 matching the protective plate 22 is provided at the top of the sealing cover 12, and the protective plate 22 is slidably connected to the top of the sealing cover 12 through the second slide groove 21. A socket 23 is provided at the top of the protective plate 22, and a plug plate 24 is inserted into the inner side of the socket 23 to seal. A slot 25 that matches the insert plate 24 is provided at the top of the cover 12, and the position of the slot 25 corresponds to the position of the insert plate 24. When it is necessary to add lubricating oil to the ball 2 later, the protective cover 29 is first opened through the thread principle, and then the insert plate 24 is pulled out of the socket 23, which makes it convenient for the user to slide the protective plate 22 through the second slide groove 21. After the protective plate 22 is slid open, its feed port 19 will be exposed. The user can directly add lubricating oil to the position of the ball 2 through the feed port 19, and there is no need to open the entire sealing cover 12 to add lubricating oil. While achieving the convenience of adding lubricating oil, it also effectively solves the problem of dust easily entering the inside of the bearing body 1 during the addition of lubricating oil.

[0030] refer to Figure 4A rectangular opening 26 is provided at the top of the protective plate 22. The rectangular opening 26 passes through the protective plate 22. A transparent glass 27 is fixedly connected to the inner side of the rectangular opening 26. The transparent glass 27 covers the inner side of the rectangular opening 26. The position of the transparent glass 27 is symmetrical with the position of the ball 2. Due to the opening of the rectangular opening 26, the user can directly check the position of the ball 2 through the transparent glass 27 without opening the protective plate 22, which is beneficial for the user to observe the remaining amount of lubricating oil, so as to know in time whether the bearing body 1 needs to be added with lubricating oil.

[0031] refer to Figure 1 and Figure 2 A threaded groove 28 is provided at the top of the sealing cover 12, and a connecting frame 30 is fixedly connected to the bottom end of the protective plate 22. An external thread 31 matching the threaded groove 28 is provided on the outside of the connecting frame 30, and the connecting frame 30 is threadedly connected to the inner side of the threaded groove 28 through the external thread 31. The protective cover 29 is threadedly connected to the top of the sealing cover 12 through the connecting frame 30, the external thread 31 and the threaded groove 28. Due to the existence of the connecting frame 30, the screwing of the connecting frame 30 can effectively fix the position of the protective cover 29. The protective cover 29 can effectively protect the points where lubricating oil needs to be added, thereby avoiding damage to the structure of the feed port 19 position, and can effectively improve the safety of the later addition of lubricating oil.

[0032] Principle and advantages of use: When in use, due to the presence of the sealing cover 12, the sealing cover 12 is clamped to the top of the bearing body 1 through the clamping principle, thereby effectively protecting the top of the bearing body 1 and preventing dust from entering the interior of the bearing body 1. In order to improve the stability of the fixed position of the sealing cover 12, the user can press the pressing cover 13 through the first slide groove 14. The downward pressure of the pressing cover 13 can make the card plate 18 clamped into the sloped first clamping groove 4, and at the same time press the pressing block 6. The pressing block 6 can press the spring buckle 7. The first press is a rebound, which can make the push block 8 be recovered to the inside of the through-port 9, which can not hinder the normal clamping of the card plate 18 into the limiting groove 11 inside the first clamping groove 4. When the sealing cover 12 needs to be opened, the pressing cover 13 is pressed again, and the spring buckle 7 pressed for the second time will rebound, and then the card plate 18 can be pushed out of the limiting groove 11 through the through-hole 9 and the pushing block 8, so that the card plate 18 can be normally drawn out, and the purpose of convenient disassembly and assembly of the sealing cover 12 for later maintenance of the interior of the bearing body 1 is achieved. Due to the existence of the first card block 16, the carding of the first card block 16 can effectively limit the position of the sealing cover 12, while improving the card connection stability of the sealing cover 12, it can also effectively improve the card connection accuracy of the card plate 18. Due to the existence of the first sealing ring 15, When the sealing cover 12 is snapped in place, its first sealing ring 15 can effectively seal the connection point between the sealing cover 12 and the bearing body 1, thereby effectively improving the overall sealing of the bearing body 1. When it is necessary to add lubricating oil to the ball 2 in the later stage, the protective cover 29 is first opened by the thread principle, and then the inserting plate 24 is pulled out of the socket 23, so that it is convenient for the user to slide the protective plate 22 through the second sliding groove 21. After the protective plate 22 is slid open, its feed port 19 will be exposed. The user can directly add lubricating oil to the position of the ball 2 through the feed port 19, and there is no need to open the entire sealing cover 12 to add lubricating oil. While adding lubricating oil, it also effectively solves the problem that dust easily enters the interior of the bearing body 1 during the addition of lubricating oil. Due to the opening of the rectangular opening 26, the user can directly view the position of the ball 2 through the transparent glass 27 without opening the protective plate 22, which is beneficial for the user to observe the remaining amount of lubricating oil, so as to know in time whether the bearing body 1 needs lubricating oil addition. Due to the existence of the connecting frame 30, the screwing in of the connecting frame 30 can effectively fix the position of the protective cover 29, and the protective cover 29 can effectively protect the points where the lubricating oil needs to be added, thereby avoiding damage to the structure of the feed port 19 position, and can effectively improve the safety of the later addition of lubricating oil.

Claims

1. A slewing bearing, comprising a bearing body (1), characterized in that: A ball (2) is installed on the inner side of the bearing body (1), a groove (5) is provided at the top of the bearing body (1), a pressing block (6) is installed at the inner bottom end of the groove (5), a spring clip (7) is installed at the bottom end of the pressing block (6), a push block (8) is fixedly connected to one side of the spring clip (7), a second slot (10) is provided at the inner bottom end of the groove (5), a through opening (9) is provided on the inner side of the second slot (10), the push block (8) is located on the inner side of the through opening (9), a limiting groove (11) is provided on the inner side of the second slot (10), and the bearing The top end of the body (1) is clamped with a sealing cover (12), the inner side of the sealing cover (12) is slidably connected to a pressing cover (13), the inner side of the sealing cover (12) is provided with a first sliding groove (14) matching the pressing cover (13), the pressing cover (13) is slidably connected to the inner side of the sealing cover (12) through the first sliding groove (14), the bottom end of the pressing cover (13) is rotatably connected to a connecting shaft (17), the bottom end of the connecting shaft (17) is fixedly connected to a card plate (18) matching the second card slot (10), and the card plate (18) is clamped to the inner side of the second card slot (10).

2. The slewing bearing according to claim 1, characterized in that: The bottom end of the sealing cover (12) is fixedly connected with a clamping block (16); the top end of the bearing body (1) is provided with a first clamping groove (4) matching the clamping block (16); the clamping block (16) is fixedly connected to the four sides of the bottom end of the sealing cover (12) close to the corners; the clamping block (16) is clamped inside the first clamping groove (4); and the sealing cover (12) is clamped to the top end of the bearing body (1) through the clamping block (16) and the first clamping groove (4).

3. The slewing bearing according to claim 1, wherein: The bottom end of the sealing cover (12) is fixedly connected to a first sealing ring (15), the clamping plate (18) is located close to the inner side of the first sealing ring (15), and the top end of the bearing body (1) is provided with a circular groove (3) matching the first sealing ring (15), and the first sealing ring (15) covers the inner side of the circular groove (3).

4. The slewing bearing according to claim 1, characterized in that: The top of the sealing cover (12) is provided with a feed port (19), the position of the feed port (19) is symmetrical with the position of the ball (2), the top of the sealing cover (12) is slidably connected to a protective plate (22), the protective plate (22) covers the top of the feed port (19), the top of the sealing cover (12) is threadedly connected to a protective cover (29), the protective cover (29) covers the top of the sealing cover (12), and a second sealing ring (20) is fixedly connected to the inner wall of the feed port (19), and the top of the second sealing ring (20) is in contact with the bottom end of the protective plate (22).

5. The slewing bearing according to claim 4, characterized in that: The top of the sealing cover (12) is provided with a second sliding groove (21) that matches the protective plate (22); the protective plate (22) is slidably connected to the top of the sealing cover (12) through the second sliding groove (21); the top of the protective plate (22) is provided with a socket (23); the inner side of the socket (23) is plugged with an inserting plate (24); the top of the sealing cover (12) is provided with a slot (25) that matches the inserting plate (24); the position of the slot (25) corresponds to the position of the inserting plate (24).

6. The slewing bearing according to claim 4, characterized in that: A rectangular opening (26) is provided at the top end of the protective plate (22), and the rectangular opening (26) passes through the protective plate (22). A transparent glass (27) is fixedly connected to the inner side of the rectangular opening (26), and the transparent glass (27) covers the inner side of the rectangular opening (26). The position of the transparent glass (27) is symmetrical with the position of the ball (2).

7. The slewing bearing according to claim 4, characterized in that: The top end of the sealing cover (12) is provided with a thread groove (28), the bottom end of the protective plate (22) is fixedly connected to a connecting frame (30), the outer side of the connecting frame (30) is provided with an external thread (31) matching the thread groove (28), the connecting frame (30) is threadedly connected to the inner side of the thread groove (28) through the external thread (31), and the protective cover (29) is threadedly connected to the top end of the sealing cover (12) through the connecting frame (30), the external thread (31) and the thread groove (28).

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