A sliding bearing lubrication device
By introducing a roller and movable rod pusher plate structure into the sliding bearing lubrication device, the problem of low lubricating oil discharge efficiency is solved, achieving rapid oil discharge and ensuring sealing, thereby improving the overall performance and service life of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI ZHONGBO MASCH MFG CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-29
AI Technical Summary
Existing lubrication devices for sliding bearings are inefficient when discharging high-viscosity lubricating oil or through complex paths, resulting in extended maintenance time.
It adopts a structure of rollers, insert rods, and springs. By pressing the insert rod, the rollers come into contact with the rotating parts to scrape off the oil. The cooperation of the movable rod and push plate enables the oil to be discharged quickly. Combined with the design of the sealing plate and sealing gasket, good sealing is ensured after the oil is discharged.
This increases the discharge rate of lubricating oil, ensuring the overall performance and service life of the device and preventing lubricating oil leakage.
Smart Images

Figure CN224301804U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing lubrication technology, and in particular to a sliding bearing lubrication device. Background Technology
[0002] A sliding bearing is a bearing that operates under sliding friction. Under liquid lubrication conditions, the sliding surfaces are separated by lubricating oil and do not come into direct contact, which can greatly reduce friction loss and surface wear. The oil film also has a certain vibration damping capacity.
[0003] Therefore, in the prior art, a sliding bearing lubrication device, disclosed in CN219911527U, involves extracting a sealing plug from the lubricating oil outflow hole, then moving the scraping device upward so that the lubricating oil scraper contacts the rotating component. The rotating component is then rotated, and as it rotates, it rubs against the lubricating oil scraper, which scrapes off the lubricating oil adhering to the rotating component. Finally, the lubricating oil in the sliding bearing flows out along the lubricating oil outflow groove and lubricating oil outflow hole due to gravity.
[0004] The device discharges old lubricating oil by gravity, which is inefficient, especially when the lubricating oil has high viscosity or a complex flow path, the oil discharge speed drops significantly, resulting in extended maintenance time. Utility Model Content
[0005] The purpose of this utility model is to solve the problems existing in the prior art and to propose a sliding bearing lubrication device.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a sliding bearing lubrication device, comprising a base and a rotating component. Two limiting posts are fixedly connected to the inner bottom side of the base. A roller is provided in the gap between the base and the rotating component, with the roller located between the two limiting posts. An insertion hole is provided on the outer side of the roller. An insertion rod is provided through the bottom of the base. One end of the insertion rod is located inside the base and is fixedly inserted into the roller through the insertion hole. The other end is located below the base and is fixedly connected to an extension plate. A spring is fixedly connected between the extension plate and the bottom of the base. A liquid outlet groove is provided inside the base, close to one side of the limiting posts. A movable rod is provided inside the liquid outlet groove, with a push plate fixedly connected to the outer side of the movable rod. One end of the liquid outlet groove passes through the base and communicates with the outside.
[0007] Preferably, a sealing plate for sealing one end of the liquid outlet tank is provided on one side of the base. A sliding sleeve that is inserted into the liquid outlet tank is fixedly connected to the side of the sealing plate facing the base. Oil outlet holes are provided on both sides of the sliding sleeve. The sealing plate is fixed to the base by bolts.
[0008] Preferably, the liquid outlet groove is provided on both sides, and the sliding sleeve is fixedly connected to the sliding groove with a slider that is slidably connected to the sliding groove.
[0009] Preferably, the other end of the liquid outlet tank is provided with a threaded hole, one end of the movable rod is connected through the sealing plate and the other end is used to be threaded to the threaded hole, and a sealing gasket is sleeved on one end of the movable rod.
[0010] Preferably, the bottom of the base is fixedly connected to a protective sleeve that is fitted and installed with the insertion rod, and the inner side of the protective sleeve is threaded with a movable bolt that abuts against the extension plate.
[0011] Preferably, it also includes an upper cover, one side of which is hinged to the base via a pin, and the other side is fixedly connected to a fixing bolt, the other side of which is fixed to the base via the fixing bolt.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0013] 1. In this utility model, by setting up structures such as rollers, insert rods, and springs, when draining oil, pressing the insert rod causes the rollers to abut against the rotating parts, and rotating the rotating parts scrapes off the oil on their surface, allowing the scraped oil to flow into the draining tank. By setting up movable rods and push plates, the oil can be pushed out of the draining tank, thus accelerating the oil draining speed.
[0014] 2. In this utility model, a sealing plate, a sliding sleeve, and an oil outlet hole are provided at one end of the liquid outlet tank, and a threaded hole is provided at the other end. A sealing gasket is fitted on the movable rod. After the oil is discharged, the movable rod can be rotated to fix it to the base. The sealing gasket is filled between the sealing plate and the movable rod to achieve a good seal, prevent lubricating oil leakage, and improve the overall performance and service life of the device. Attached Figure Description
[0015] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a sliding bearing lubrication device;
[0016] Figure 2 This is a three-dimensional structural diagram of the roller in this utility model;
[0017] Figure 3 In this utility model Figure 2 Orthographic view;
[0018] Figure 4 In this utility model Figure 2 A side-section three-dimensional structural diagram;
[0019] Figure 5 for Figure 3 Enlarged view of point A in the middle;
[0020] Figure 6 for Figure 4 Enlarged view of point B in the middle;
[0021] Figure 7 for Figure 4 Enlarged view of point C in the middle.
[0022] Legend: 1. Base; 2. Top cover; 3. Rotating component; 4. Fixing bolt; 5. Roller; 6. Threaded hole; 7. Sealing plate; 8. Protective sleeve; 9. Limiting post; 10. Liquid outlet groove; 11. Movable rod; 12. Push plate; 13. Insertion hole; 14. Insertion rod; 15. Spring; 16. Extension plate; 17. Slide groove; 18. Sliding block; 19. Moving bolt; 20. Sealing gasket; 21. Sliding sleeve; 22. Oil outlet. Detailed Implementation
[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0025] like Figure 1-7 As shown, a sliding bearing lubrication device includes a base 1 and a rotating component 3. Two limiting posts 9 are fixedly connected to the inner bottom side of the base 1. A roller 5 is disposed in the gap between the base 1 and the rotating component 3, with the roller 5 located between the two limiting posts 9. An insertion hole 13 is provided on the outer side of the roller 5. An insertion rod 14 is provided through the bottom of the base 1. One end of the insertion rod 14 is located inside the base 1 and is inserted and fixed to the roller 5 through the insertion hole 13. The other end is located below the base 1 and is fixedly connected to an extension plate 16. A spring 15 is fixedly connected between the extension plate 16 and the bottom of the base 1. A liquid outlet groove 1 is provided on the inner side of the base 1. 0. The liquid outlet 10 is close to the side of the limiting post 9. A movable rod 11 is provided inside the liquid outlet 10. A push plate 12 is fixedly connected to the outside of the movable rod 11. One end of the liquid outlet 10 passes through the base 1 and communicates with the outside. A sealing plate 7 is provided on one side of the base 1 to close one end of the liquid outlet 10. A sliding sleeve 21 that is inserted into the liquid outlet 10 is fixedly connected to the side of the sealing plate 7 facing the base 1. Oil outlet holes 22 are opened on both sides of the sliding sleeve 21. The sealing plate 7 is fixed to the base 1 by bolts. Sliding grooves 17 are opened on both sides of the liquid outlet 10. A slider 18 that is slidably connected to the sliding groove 17 is fixedly connected to both sides of the sliding sleeve 21.
[0026] In this technical solution, by setting roller 5, pressure is applied to insert rod 14 during oil discharge, causing insert rod 14 to move upward and drive roller 5 to abut against rotating part 3. At the same time, rotating part 3 rotates, causing the oil on its surface to rotate, thereby scraping off the oil on the surface of rotating part 3. By setting liquid outlet groove 10, the scraped oil flows into liquid outlet groove 10. By setting sealing plate 7, the sealing plate 7 is pulled outward, causing sliding sleeve 21 to slide along liquid outlet groove 10 and slide out of liquid outlet groove 10 at one end, so that oil outlet hole 22 moves to the outside of base 1, that is, the oil in liquid outlet groove 10 can be discharged from base 1 through oil outlet hole 22 at this time.
[0027] By setting up a movable rod 11 and a push plate 12, the movable rod 11 reciprocates within the liquid outlet 10, driving the push plate 12 to move. The push plate 12 pushes the oil within the liquid outlet 10. Specifically, by rotating the movable rod 11, the push plate 12 is positioned within the liquid outlet 10, and the movable rod 11 is pulled out of the liquid outlet 10, causing the push plate 12 to slide towards the sealing plate 7 within the liquid outlet 10, thus discharging the oil. Afterward, the movable rod 11 is rotated, causing the push plate 12 to rotate above the liquid outlet 10, and the movable rod 11 is pulled back, causing the push plate 12 to return to the base 1. This ensures that the oil does not follow the push plate 12 away from the oil outlet 22 during this process.
[0028] like Figure 7 As shown, the other end of the liquid outlet tank 10 is provided with a threaded hole 6. One end of the movable rod 11 is connected through the sealing plate 7, and the other end is used to be threaded to the threaded hole 6. A sealing gasket 20 is sleeved on one end of the movable rod 11.
[0029] In this technical solution, by setting the threaded hole 6, after the oil is drained, the movable rod 11 is rotated so that one end of the movable rod 11 is fixed to the base 1 through the threaded hole 6. By setting the sealing gasket 20, after the sealing plate 7 is fixed to the base 1 by bolts, during the process of the movable rod 11 rotating into the threaded hole 6, it will drive the sealing gasket 20 located at the other end of the movable rod 11 to continuously approach the sealing plate 7 and eventually fit with the sealing plate 7, filling the space between the sealing plate 7 and the movable rod 11.
[0030] like Figure 5 As shown, a protective sleeve 8 is fixedly connected to the bottom of the base 1 and is fitted onto the insert rod 14. A movable bolt 19 is threadedly connected to the inner side of the protective sleeve 8 and abuts against the extension plate 16.
[0031] In this technical solution, a protective sleeve 8 is provided to protect the insertion rod 14 from accidental collisions, which would cause the roller 5 to move. A movable bolt 19 is provided, and by rotating the movable bolt 19, the movable bolt 19 moves upward, which can drive the insertion rod 14 and the roller 5 to move upward.
[0032] like Figure 1As shown, it also includes an upper cover 2. One side of the upper cover 2 is hinged to the base 1 by a pin, and the other side is fixedly connected to a fixing bolt 4. The other side of the upper cover 2 is fixed to the base 1 by the fixing bolt 4.
[0033] In this technical solution, by setting the upper cover 2 to be hinged to the base 1, when disassembling the bearing seat, only the fixing bolt 4 on one side needs to be turned to open the upper cover 2 and take out the rotating part 3.
[0034] Working principle: When it is necessary to drain the lubricating oil from the sliding bearing, first turn the movable bolt 19. The movable bolt 19 moves upward and applies pressure to the insert rod 14. The insert rod 14 moves upward and compresses the spring 15, which in turn drives the roller 5 to rise until the roller 5 abuts against the rotating part 3. At this time, rotate the rotating part 3. Since the roller 5 is in contact with the surface of the rotating part 3, the rotation of the rotating part 3 will drive the oil adhering to its surface to move. The roller 5 can scrape off this oil. The scraped oil will flow into the outlet groove 10 opened on the inner side of the base 1. Then, turn the bolt to remove the sealing plate 7 from the base 1. Pull the sealing plate 7 out and drive the sliding sleeve 21 to slide along the outlet groove 10 and pass through the outlet groove. One end of the rod 10 slides out of the outlet groove 10, causing the oil outlet 22 to move to the outside of the base 1. Then, the rod 11 is rotated so that it is screwed out of the threaded hole 6 and the push plate 12 is positioned downward inside the outlet groove 10. Next, the rod 11 is pulled out of the outlet groove 10. The movement of the rod 11 will cause the push plate 12 to slide towards the sealing plate 7 inside the outlet groove 10, thereby pushing the oil to flow in the direction of oil discharge and assisting the oil discharge. Then, the rod 11 is rotated again so that the push plate 12 rotates to the top of the outlet groove 10. Then, the rod 11 is pulled back to drive the push plate 12 back into the base 1. This can prevent the oil from following the push plate 12 away from the oil outlet 22 and ensure the smoothness of oil discharge.
[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.
Claims
1. A sliding bearing lubrication device, comprising a base (1) and a rotating component (3), characterized in that: Two limiting posts (9) are fixedly connected to the inner bottom side of the base (1). A roller (5) is provided in the gap between the base (1) and the rotating part (3). The roller (5) is located between the two limiting posts (9). An insertion hole (13) is provided on the outer side of the roller (5). An insertion rod (14) is provided through the bottom of the base (1). One end of the insertion rod (14) is located inside the base (1) and is inserted and fixed to the roller (5) through the insertion hole (13). The other end is located below the base (1) and is fixedly connected to an extension plate (16). A spring (15) is fixedly connected between the extension plate (16) and the bottom of the base (1). A liquid outlet groove (10) is provided inside the base (1). The liquid outlet groove (10) is close to the side of the limiting post (9). A movable rod (11) is provided inside the liquid outlet groove (10). A push plate (12) is fixedly connected to the outer side of the movable rod (11). One end of the liquid outlet groove (10) passes through the base (1) and communicates with the outside.
2. The sliding bearing lubrication device according to claim 1, characterized in that: The base (1) is provided with a sealing plate (7) for sealing one end of the liquid outlet tank (10). The sealing plate (7) facing the base (1) is fixedly connected with a sliding sleeve (21) that is inserted into the liquid outlet tank (10). The sliding sleeve (21) has oil outlet holes (22) on both sides. The sealing plate (7) is fixed to the base (1) by bolts.
3. The sliding bearing lubrication device according to claim 2, characterized in that: The liquid outlet groove (10) has sliding grooves (17) on both sides, and the sliding sleeve (21) has sliders (18) that are slidably connected to the sliding grooves (17) on both sides.
4. The sliding bearing lubrication device according to claim 1, characterized in that: The other end of the liquid outlet tank (10) is provided with a threaded hole (6). One end of the movable rod (11) is connected through the sealing plate (7), and the other end is used to be threaded to the threaded hole (6). A sealing gasket (20) is fitted on one end of the movable rod (11).
5. The sliding bearing lubrication device according to claim 1, characterized in that: The base (1) is fixedly connected to a protective sleeve (8) that is fitted and installed on the insert rod (14). The inner side of the protective sleeve (8) is threaded with a movable bolt (19) that abuts against the extension plate (16).
6. The sliding bearing lubrication device according to claim 1, characterized in that: It also includes an upper cover (2), one side of which is hinged to the base (1) by a pin, and the other side is fixedly connected to a fixing bolt (4). The other side of the upper cover (2) is fixed to the base (1) by the fixing bolt (4).