Rolling bearing forced lubrication system
By designing a forced lubrication system for rolling bearings, and utilizing a combination of a thin oil station and a filter box, the problem of temperature rise in rolling bearings under extreme operating conditions was solved, achieving effective lubrication and cooling, extending equipment life, and improving equipment safety and reliability.
Patent Information
- Application Number
- CN202520211064.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-02-11
AI Technical Summary
Traditional rolling bearings are prone to excessive temperature rise under extreme operating conditions, resulting in short service life and inability to meet the lubrication requirements of high-temperature equipment.
Design a forced lubrication system for rolling bearings, including a thin oil station, an oil inlet pipe assembly, an oil return pipe assembly, a bearing housing, and an oil spraying device. By controlling the start and stop of the thin oil station, lubricating oil is introduced to spray lubricate and cool the balls. The lubricating oil is filtered through a filter box and reused. Impurities are flushed down through an inclined filter screen to avoid clogging.
It achieves effective lubrication and cooling of rolling bearings, extends service life, avoids lubrication system blockage, and improves equipment safety and reliability.
Smart Images
Figure CN223595608U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing lubrication technology, specifically a forced lubrication system for rolling bearings. Background Technology
[0002] A rolling bearing is a precision mechanical component that transforms the sliding friction between a rotating shaft and its housing into rolling friction, thereby reducing friction loss. A rolling bearing generally consists of four parts: an inner ring, an outer ring, rolling elements, and a cage. The inner ring mates with the shaft and rotates with it; the outer ring mates with the bearing housing and provides support; the rolling elements are evenly distributed between the inner and outer rings by the cage, and their shape, size, and number directly affect the performance and lifespan of the rolling bearing; the cage ensures even distribution of the rolling elements, guides their rotation, and provides lubrication.
[0003] Traditional rolling bearings in mechanical equipment are lubricated by oil bath or self-lubrication. Under extreme operating conditions, this lubrication method can easily lead to excessive temperature rise and short service life of the rolling bearings, which can affect the normal operation of the equipment and pose safety hazards. It cannot meet the high lubrication requirements of users, especially for equipment such as high-temperature fans, where the temperature of the rolling bearings will rise sharply during use. Therefore, we propose a forced lubrication system for rolling bearings. Utility Model Content
[0004] The purpose of this invention is to provide a forced lubrication system for rolling bearings.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a forced lubrication system for rolling bearings, comprising a thin oil station, an oil inlet pipe assembly, a return oil pipe assembly, a bearing housing, an oil injection device, and a bearing body installed in the bearing housing. The oil injection device is installed in the bearing housing, and the injection end of the oil injection device is aligned with the balls in the bearing body. The input end of the oil inlet pipe assembly is connected to the thin oil station, and the output end of the oil inlet pipe assembly is connected to the bearing housing and communicates with the oil injection device. The input end of the return oil pipe assembly is connected to the bearing housing, and the output end of the return oil pipe assembly is connected to the thin oil station. A filter mechanism is provided on the return oil pipe assembly.
[0006] As a further embodiment of this utility model: the output end of the oil inlet pipe assembly is provided with a first flange, and the first flange is fixedly connected to the bearing housing by a plurality of first bolts.
[0007] As a further embodiment of this utility model: the input end of the return oil pipe assembly is provided with a second flange, and the second flange is fixedly connected to the bearing housing by a plurality of second bolts.
[0008] As a further embodiment of this utility model: the filtration mechanism includes a filter box, the oil return pipe assembly includes a first oil return pipe and a second oil return pipe, the first oil return pipe and the second oil return pipe are respectively fixedly arranged on the left and right sides of the filter box, and the other ends of the first oil return pipe and the second oil return pipe are respectively connected to the bearing box and the thin oil station, the filter box is fixedly provided with an inclined filter screen, and the upper end of the filter screen is inclined towards the first oil return pipe, the first oil return pipe and the second oil return pipe are respectively installed with a first control valve and a second control valve, the filter box is provided with a drain port on the lower side, and a sealing cap is threadedly connected to the lower side of the drain port.
[0009] As a further embodiment of this utility model: a water inlet pipe is provided on the upper side of the filter box, and a third control valve is provided on the water inlet pipe.
[0010] As a further embodiment of this utility model, the lower inner wall of the filter box is V-shaped.
[0011] Compared with the prior art, the beneficial effects of this utility model by adopting the above technical solution are as follows:
[0012] 1. This utility model controls the start and stop of the thin oil station, allowing lubricating oil to be introduced into the oil supply pipe assembly. Then, an oil spraying device sprays oil onto the ball bearings, lubricating and cooling the rolling bearings. Used lubricating oil enters the filter box through the first return oil pipe. After being filtered by the filter screen, the cooled oil flows back to the thin oil station through the second return oil pipe for reuse. Impurities filtered from the lubricating oil remain in the filter box. The angled filter screen facilitates the flushing of residual impurities as the lubricating oil enters the filter box, preventing excessive impurities from clogging the screen. To clean the filter box, the first and second control valves are closed, and the sealing cover is opened to discharge the impurities. The filter box can also be connected to an external water pipe via an inlet pipe for flushing, making it convenient for users.
[0013] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;
[0015] Figure 2 This is a schematic diagram of the internal structure of the bearing housing in an embodiment of this utility model;
[0016] Figure 3This is a schematic diagram of the filter mechanism in an embodiment of the present invention.
[0017] In the diagram: 1. Injection device; 2. Bearing housing; 3. Inlet pipe assembly; 4. Return pipe assembly; 5. Thin oil station; 6. Bearing body; 7. Filter box; 8. First return pipe; 9. Second return pipe; 10. Filter screen; 11. First control valve; 12. Second control valve; 13. Sealing cover; 14. Water inlet pipe; 15. Third control valve. Detailed Implementation
[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is for the purpose of helping to understand this utility model, but does not constitute a limitation on this utility model.
[0019] Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0020] Please see the appendix Figure 1 - Appendix Figure 3 This utility model discloses a forced lubrication system for rolling bearings, comprising a thin oil station 5, an oil inlet pipe assembly 3, an oil return pipe assembly 4, a bearing housing 2, an oil injection device 1, and a bearing body 6 installed in the bearing housing 2. The oil injection device 1 is installed in the bearing housing 2, and the injection end of the oil injection device 1 is aligned with the balls in the bearing body 6. The input end of the oil inlet pipe assembly 3 is connected to the thin oil station 5, and the output end of the oil inlet pipe assembly 3 is connected to the bearing housing 2 and communicates with the oil injection device 1. The input end of the oil return pipe assembly 4 is connected to the bearing housing 2, and the output end of the oil return pipe assembly 4 is connected to the thin oil station 5. A filter mechanism is provided on the oil return pipe assembly 4. The thin oil station 5 is equipped with a pump body that can guide lubricating oil into the oil inlet pipe assembly 3 (not shown in the figure).
[0021] In one embodiment of this utility model: the output end of the oil inlet pipe assembly 3 is provided with a first flange, and the first flange is fixedly connected to the bearing housing 2 by a plurality of first bolts.
[0022] In one embodiment of this utility model: a second flange is provided at the input end of the oil return pipe assembly 4, and the second flange is fixedly connected to the bearing housing 2 by a plurality of second bolts.
[0023] In one embodiment of this utility model: the filtration mechanism includes a filter box 7, and the oil return pipe group 4 includes a first oil return pipe 8 and a second oil return pipe 9. The first oil return pipe 8 and the second oil return pipe 9 are respectively fixedly arranged on the left and right sides of the filter box 7, and the other ends of the first oil return pipe 8 and the second oil return pipe 9 are respectively connected to the bearing box 2 and the thin oil station 5. An inclined filter screen 10 is fixedly arranged inside the filter box 7, and the upper end of the filter screen 10 is inclined towards the first oil return pipe 8. A first control valve 11 and a second control valve 12 are respectively installed on the first oil return pipe 8 and the second oil return pipe 9. A drain port is opened on the lower side of the filter box 7, and a sealing cap 13 is threadedly connected to the lower side of the drain port.
[0024] In one embodiment of this utility model: a water inlet pipe 14 is provided on the upper side of the filter box 7, and a third control valve 15 is provided on the water inlet pipe 14.
[0025] In one embodiment of this utility model, the lower inner sidewall of the filter box 7 is V-shaped.
[0026] Working principle:
[0027] By controlling the start and stop of the thin oil station 5, the lubricating oil in the thin oil station 5 can be introduced into the oil supply pipe group. Then, the oil spraying device 1 sprays oil onto the balls in the bearing body to lubricate and cool the rolling bearing. The lubricating oil after use enters the filter box 7 through the first return oil pipe 8. After the cold oil is filtered by the filter screen 10, it flows back to the thin oil station 5 through the second return oil pipe 9 for reuse. The impurities filtered by the lubricating oil will remain in the filter box 7. By tilting the filter screen 10, it is convenient for the lubricating oil to flush down the impurities remaining on the filter screen 10 when it enters the filter box 7, avoiding excessive impurities on the filter screen 10 and causing blockage. When it is necessary to clean the impurities in the filter box 7, the first control valve 11 and the second control valve 12 are closed, and the sealing cover 13 is opened to discharge the impurities in the filter box 7. It can also be connected to the external water pipe through the water inlet pipe 14 to flush the impurities in the filter box 7, making it convenient for people to use.
[0028] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.
[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0030] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.
[0031] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.
[0032] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.
[0033] For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of this utility model will still fall within the protection scope of this utility model.
Claims
1. A forced lubrication system for rolling bearings, comprising a thin oil station (5), an oil inlet pipe assembly (3), an oil return pipe assembly (4), a bearing housing (2), an oil injection device (1), and a bearing body (6) installed in the bearing housing (2), characterized in that: The oil injection device (1) is installed in the bearing housing (2), and the oil injection end of the oil injection device (1) is aligned with the ball in the bearing body (6). The input end of the oil inlet pipe group (3) is connected to the thin oil station (5). The output end of the oil inlet pipe group (3) is connected to the bearing housing (2) and communicates with the oil injection device (1). The input end of the return oil pipe group (4) is connected to the bearing housing (2). The output end of the return oil pipe group (4) is connected to the thin oil station (5). A filter mechanism is provided on the return oil pipe group (4).
2. The forced lubrication system for rolling bearings according to claim 1, characterized in that: The output end of the oil inlet pipe assembly (3) is provided with a first flange, which is fixedly connected to the bearing housing (2) by a plurality of first bolts.
3. The forced lubrication system for rolling bearings according to claim 1, characterized in that: The input end of the return oil pipe assembly (4) is provided with a second flange, which is fixedly connected to the bearing housing (2) by a plurality of second bolts.
4. The forced lubrication system for rolling bearings according to claim 1, characterized in that: The filtration mechanism includes a filter box (7), and the oil return pipe group (4) includes a first oil return pipe (8) and a second oil return pipe (9). The first oil return pipe (8) and the second oil return pipe (9) are respectively fixedly installed on the left and right sides of the filter box (7), and the other ends of the first oil return pipe (8) and the second oil return pipe (9) are respectively connected to the bearing box (2) and the thin oil station (5). An inclined filter screen (10) is fixedly installed inside the filter box (7), and the upper end of the filter screen (10) is inclined towards the first oil return pipe (8). A first control valve (11) and a second control valve (12) are respectively installed on the first oil return pipe (8) and the second oil return pipe (9). A drain port is opened on the lower side of the filter box (7), and a sealing cap (13) is threadedly connected to the lower side of the drain port.
5. A forced lubrication system for rolling bearings according to claim 4, characterized in that: The filter box (7) is provided with an inlet pipe (14) on its upper side, and a third control valve (15) is provided on the inlet pipe (14).
6. A forced lubrication system for rolling bearings according to claim 4, characterized in that: The lower inner wall of the filter box (7) is V-shaped.