A bearing lubrication device
By designing a combination of belt, drive shaft, and piston plate in the bearing lubrication device, the rotation of the roller shaft drives the turbine blades to generate centrifugal force, automatically adjusting the lubricating oil flow rate, thus solving the problems of insufficient or excessive lubrication, improving the service life of the bearing, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 泉州市建隆机械制造股份有限公司
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-30
AI Technical Summary
Existing bearing lubrication devices cannot adjust the flow rate of lubricating oil according to the rotational speed of the bearing during operation, resulting in insufficient or excessive lubrication, which affects the bearing life and maintenance costs.
A bearing lubrication device was designed. By combining a belt, a drive shaft, and a piston plate, the rotation of the roller shaft drives the connecting rod and the fixed rod, which in turn drives the turbine blades to rotate and generate centrifugal force. This draws in air and controls the delivery of lubricating oil through the piston plate, thereby achieving automatic adjustment of the lubricating oil flow rate.
It enables automatic adjustment of lubricating oil flow based on bearing speed, avoiding insufficient or excessive lubrication, extending bearing life and reducing maintenance costs.
Smart Images

Figure CN224433158U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing technology, specifically to a bearing lubrication device. Background Technology
[0002] Bearings are an important component in machinery, used to support and reduce friction between rotating or moving parts. They mainly consist of an inner ring, an outer ring, rolling elements (such as balls or rollers), and a cage. The working principle of a bearing is to convert sliding friction into rolling friction by the rolling of the rolling elements between the inner and outer rings, thereby significantly reducing friction and wear, improving mechanical efficiency and component life. During operation, friction and wear will occur between the rolling elements (such as balls or rollers) inside the bearing and the inner and outer rings. To reduce this friction, slow down the wear rate, extend the service life of the bearing, and improve its operational stability and efficiency, lubricants are usually required.
[0003] Current bearing lubrication systems cannot adjust the flow rate of lubricating oil according to the bearing's operating speed. Bearings have different lubricating oil requirements at different speeds. If the flow rate cannot be adjusted according to the speed, it may lead to insufficient or excessive lubrication. Insufficient lubrication will increase friction and wear, shortening the bearing's life; excessive lubrication may lead to lubricating oil leakage and waste, increasing maintenance costs. Utility Model Content
[0004] The purpose of this invention is to provide a bearing lubrication device that delivers lubricating oil into the bearing body as the roller rotates, thereby lubricating the bearing body structure. This solves the problem that bearing lubrication devices cannot adjust the flow rate of the delivered lubricating oil according to the rotation speed of the inner ring of the bearing.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a bearing lubrication device, comprising a bearing housing and a filter screen, wherein a bearing body is fixedly mounted on the bearing housing, an oil tank is mounted on the top of the bearing housing, a pump body is mounted on the top of the oil tank, a drive shaft is movably mounted on the pump body, turbine blades are mounted in a circular array on the outer side of a section of the drive shaft extending into the pump body, a fixing frame is mounted on the top of the oil tank above the pump body, an insertion hole is provided on the side of the fixing frame, the filter screen is inserted into the fixing frame through the insertion hole, springs are symmetrically mounted on the top of the inside of the oil tank, and piston plates are mounted on the bottom of the two springs.
[0006] Preferably, a roller is movably mounted on the bearing body, a connecting rod is welded to one end of the roller, and a fixed rod is movably mounted on the top of the oil tank on one side of the pump body. The connecting rod is movably connected to the fixed rod via a belt.
[0007] Preferably, the top of the fixing frame has a movable hole.
[0008] Preferably, the fixing rod is fixedly connected to the drive shaft, an air suction pipe is installed on the top of the pump body, the air suction pipe extends into the interior of the fixing frame from the bottom, and an air outlet pipe is installed on the bottom of the pump body, extending into the interior of the oil tank from the top.
[0009] Preferably, a feed pipe is embedded in the left side of the oil tank, and an observation window is embedded in the rear side of the oil tank.
[0010] Preferably, a connecting pipe is embedded in the right side of the oil tank, and the height of the connecting pipe is higher than the height of the feed pipe.
[0011] Preferably, a discharge pipe is embedded in the bottom of the oil tank, and the bottom of the discharge pipe passes through the top of the bearing seat and extends into the interior of the bearing body.
[0012] Preferably, the bottom of the bearing housing has a rectangular array of fixing holes.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This invention, by setting up a belt, drive shaft, and piston plate, connects the roller shaft of the bearing body to the driven rod of the equipment. When the driven rod rotates, it drives the roller shaft to rotate, which in turn drives the connecting rod to rotate. The connecting rod drives the fixed rod to rotate via the belt, which in turn drives the drive shaft to rotate. The drive shaft drives the turbine blades inside the pump body to rotate. When the turbine blades rotate, they generate centrifugal force. Under the influence of centrifugal force, the pump body draws air from inside the fixed frame through the suction pipe and then delivers the air to the oil tank through the exhaust pipe. The air discharged through the exhaust pipe compresses the piston plate inside the oil tank. Under the influence of pressure, the piston plate moves downward, applying pressure to the oil below. This delivers the lubricating oil inside the oil tank to the bearing body through the discharge pipe, achieving the effect of delivering lubricating oil to the bearing body as the roller shaft rotates, thus lubricating the bearing body structure. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention from a first angle;
[0016] Figure 2 This is a two-dimensional structural diagram of the present invention from a second angle;
[0017] Figure 3 This is a schematic diagram of the oil tank, pump body, and mounting frame of this utility model;
[0018] Figure 4 This is a schematic diagram of the fixing frame and filter screen structure of this utility model;
[0019] Figure 5 This is a cross-sectional structural diagram of the fuel tank of this utility model.
[0020] In the diagram: 1. Bearing housing; 2. Fixing hole; 3. Roller shaft; 4. Oil tank; 5. Observation window; 6. Pump body; 7. Fixing frame; 8. Movable hole; 9. Filter screen; 10. Fixing rod; 11. Belt; 12. Bearing body; 13. Connecting rod; 14. Feed pipe; 15. Discharge pipe; 16. Drive shaft; 17. Insertion hole; 18. Spring; 19. Air outlet pipe; 20. Piston plate; 21. Connecting pipe; 22. Suction pipe. Detailed Implementation
[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0022] 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. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0023] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0025] Example 1
[0026] like Figures 1-5As shown, this utility model proposes a bearing lubrication device, including a bearing housing 1 and a filter screen 9. A bearing body 12 is fixedly mounted on the bearing housing 1, and a roller 3 is movably mounted on the bearing body 12. A connecting rod 13 is welded to one end of the roller 3. The roller 3 is fixedly connected to the driven rod of the device via a flange or other structure. When the driven rod rotates, it drives the roller 3 to rotate, which in turn drives the connecting rod 13 to rotate. An oil tank 4 is mounted on the top of the bearing housing 1, and a pump body 6 is mounted on the top of the oil tank 4. A fixed rod 10 is movably mounted on the top of the oil tank 4 on one side of the pump body 6. The connecting rod 13 is movably connected to the fixed rod 10 via a belt 11. The connecting rod 13 drives the fixed rod 10 to rotate via the belt 11, and the pump body 6 moves... A drive shaft 16 is installed, and a fixed rod 10 is fixedly connected to the drive shaft 16. When the fixed rod 10 rotates, it drives the drive shaft 16 to rotate synchronously. A section of the drive shaft 16 extending into the pump body 6 has turbine blades arranged in a circular array on its outer side. A fixed frame 7 is installed on the top of the oil tank 4 above the pump body 6. A movable hole 8 is opened on the top of the fixed frame 7, allowing external air to enter the fixed frame 7 through the movable hole 8. An air intake pipe 22 is installed on the top of the pump body 6, extending into the fixed frame 7 from its bottom. An air outlet pipe 19 is installed on the bottom of the pump body 6, extending into the oil tank 4 from its top. The drive shaft 16 drives the turbine blades inside the pump body 6 to rotate, generating friction during rotation. Centrifugal force causes the pump body 6 to draw air from inside the fixed frame 7 through the suction pipe 22, and then deliver the air to the oil tank 4 through the exhaust pipe 19. The fixed frame 7 has insertion holes 17 on its side, through which a filter screen 9 is inserted. Springs 18 are symmetrically installed at the top of the oil tank 4, and piston plates 20 are installed at the bottom of the two springs 18. An inlet pipe 14 is embedded on the left side of the oil tank 4, through which lubricating oil is added. The oil tank 4 stores the lubricating oil. A connecting pipe 21 is embedded on the right side of the oil tank 4, with a height higher than the inlet pipe 14, allowing excess air inside the oil tank 4 to be discharged. Air can also enter the oil tank 4 through the connecting pipe 21 to maintain the pressure balance inside the oil tank 4. Because the connecting pipe 21 is higher than the feed pipe 14, the lubricating oil inside the oil tank 4 will not be discharged from the connecting pipe 21. The bottom of the oil tank 4 is embedded with the discharge pipe 15. The bottom of the discharge pipe 15 passes through the top of the bearing seat 1 and extends into the bearing body 12. The lubricating oil inside the oil tank 4 can be transported to the bearing body 12 through the discharge pipe 15 to lubricate the contact position of the outer ring, balls and inner ring of the bearing body 12. The bottom of the bearing seat 1 has fixed holes 2 in a rectangular array. Through the fixed holes 2, the bearing seat 1 can be fixed to the bearing structure reserved on the equipment using bolts and other tools.
[0027] Example 2
[0028] like Figures 1-5As shown, the bearing lubrication device proposed in this utility model, compared with the first embodiment, further includes: an observation window 5. An observation window 5 is embedded in the rear side of the oil tank 4. The level of lubricating oil inside the oil tank 4 can be observed through the observation window 5, which facilitates the staff to add lubricating oil to the oil tank 4 in a timely manner.
[0029] Working principle: The bearing housing 1 is fixed to the load-bearing structure of the equipment using bolts and other tools through the fixing holes 2. After the roller 3 of the bearing body 12 is fixedly connected to the driven rod of the equipment, the driven rod rotates, causing the roller 3 to rotate. The roller 3 increases the stability of the driven rod. During the rotation of the roller 3, the inner ring and balls of the bearing body 12 will rotate. At the same time, the roller 3 drives the connecting rod 13 to rotate. The connecting rod 13 drives the fixed rod 10 to rotate through the belt 11. The fixed rod 10 drives the drive shaft 16 to rotate. The drive shaft 16 drives the turbine blades inside the pump body 6 to rotate. The turbine blades generate centrifugal force during rotation. Under the influence of centrifugal force, the pump body 6 draws air from inside the fixed frame 7 through the suction pipe 22. External air enters the fixed frame 7 through the movable hole 8 under the influence of suction. The filter 9 inside the fixed frame 7 adsorbs dust from the air. Clean air is drawn in by the suction pipe 22, and the pump body 6 delivers the air to the oil tank 4 through the exhaust pipe 19. Lubricating oil is added to the oil tank 4 through the feed pipe 14. The oil tank 4 stores the lubricating oil. The air discharged from the vent pipe 19 compresses the piston plate 20 inside the oil tank 4. At this time, some of the air inside the oil tank 4 will be discharged from the side connecting pipe 21. The connecting pipe 21 has a smaller diameter, and the discharged air is less than the air delivered to the oil tank 4. The air pressure above the piston plate 20 will increase. Under the influence of the pressure, the piston plate 20 moves downward. The spring 18 at the top of the piston plate 20 is stretched. The piston plate 20 applies pressure to the oil below, and delivers the lubricating oil inside the oil tank 4 to the bearing body 12 through the discharge pipe 15. The lubricating oil lubricates the contact points of the outer ring, balls and inner ring of the bearing body 12. The faster the roller 3 rotates, the faster the speed of the lubricating oil discharged from the discharge pipe 15 will increase, and vice versa. After the roller 3 stops rotating or the speed decreases, the spring 18 pulls the piston plate 20 upward by its own elasticity, and the piston plate 20 stops applying pressure to the lubricating oil.
[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.
Claims
1. A bearing lubrication device, comprising a bearing housing (1) and a filter screen (9), characterized in that: The bearing housing (1) is fixedly mounted with a bearing body (12). An oil tank (4) is mounted on the top of the bearing housing (1). A pump body (6) is mounted on the top of the oil tank (4). A drive shaft (16) is movably mounted on the pump body (6). Turbine blades are mounted in a ring array on the outer side of a section of the drive shaft (16) that extends into the pump body (6). A fixing frame (7) is mounted on the top of the oil tank (4) above the pump body (6). An insertion hole (17) is opened on the side of the fixing frame (7). The filter screen (9) is inserted into the fixing frame (7) through the insertion hole (17). Springs (18) are symmetrically mounted on the top of the inside of the oil tank (4). Piston plates (20) are mounted on the bottom of the two springs (18).
2. The bearing lubrication device according to claim 1, characterized in that: The bearing body (12) is movably mounted with a roller (3), and a connecting rod (13) is welded to one end of the roller (3). A fixing rod (10) is movably mounted on the top of the oil tank (4) on one side of the pump body (6). The connecting rod (13) is movably connected to the fixing rod (10) via a belt (11).
3. The bearing lubrication device according to claim 1, characterized in that: The top of the fixing frame (7) has an movable hole (8).
4. A bearing lubrication device according to claim 2, characterized in that: The fixed rod (10) is fixedly connected to the drive shaft (16). The top of the pump body (6) is equipped with a suction pipe (22), which extends into the interior of the fixed frame (7) from the bottom. The bottom of the pump body (6) is equipped with an exhaust pipe (19), which extends into the interior of the oil tank (4) from the top.
5. A bearing lubrication device according to claim 1, characterized in that: The oil tank (4) has a feed pipe (14) embedded on the left side and an observation window (5) embedded on the rear side.
6. A bearing lubrication device according to claim 5, characterized in that: A connecting pipe (21) is embedded on the right side of the oil tank (4), and the height of the connecting pipe (21) is higher than the height of the feed pipe (14).
7. A bearing lubrication device according to claim 1, characterized in that: The bottom of the oil tank (4) is fitted with a discharge pipe (15), the bottom of which passes through the top of the bearing seat (1) and extends into the bearing body (12).
8. A bearing lubrication device according to claim 1, characterized in that: The bearing housing (1) has a rectangular array of fixing holes (2) at its bottom.