Bearing lubricating structure
By introducing an oil slinger and groove design into the bearing structure, the circulation and return of lubricating oil is achieved, solving the bearing damage problems caused by insufficient or excessive lubrication, and improving the bearing service life and system stability.
Patent Information
- Application Number
- CN202520514394.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-24
AI Technical Summary
Existing oil-bath lubricated bearings suffer from insufficient lubrication when the oil level decreases or the rollers are not immersed in the oil, leading to bearing damage. Furthermore, excessive lubricating oil increases heat generation and affects service life.
The design employs an oil slinger structure, in which the rotation of the shaft causes the lubricating oil to be thrown into the grooves and flow to the bearings, achieving the circulation and return of the lubricating oil. This ensures lubrication while removing heat. The design includes grooves, oil collection grooves, and oil return grooves.
It achieves continuous lubrication and heat dissipation of the bearing, extends the bearing's service life, simplifies the lubrication and maintenance process, and improves the system's stability.
Smart Images
Figure CN223924483U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bearing lubrication technical field especially relates to a bearing lubrication structure. BACKGROUND
[0002] In oil bath lubrication bearing, the lubrication of bearing is by the lowermost roller immersed in oil, which brings oil to the whole raceway surface of bearing, when the oil amount is reduced or the lowermost roller is not immersed in oil, the lubrication of bearing is reduced or not carried out at all, thus causing the damage of bearing, and the heat generated by bearing operation is only dissipated around bearing, and the heat dissipation effect is not ideal, if too much lubricating oil is added, the heat generation of bearing is increased, and the service life of bearing is affected. SUMMARY
[0003] The utility model discloses a bearing lubrication structure to solve the technical problem of bearing lubrication deficiency or excessive lubricating oil increasing the heat generation of bearing in the related art.
[0004] In order to solve the above problems, the utility model adopts the following technical scheme:
[0005] A bearing lubrication structure comprises:
[0006] A bearing is sleeved on a shaft;
[0007] A bearing seat is used for installing the bearing and an outer cavity of a rotor part; one end of the bearing seat extends along the axial direction, and an inner wall of the bearing seat is provided with a groove for collecting and conveying lubricating oil, one end of the groove is communicated with the bearing;
[0008] An oil throwing disc is sleeved on the shaft and cannot rotate relative to the shaft; at least part of the oil throwing disc is immersed in the lubricating oil in the placing space; with the rotation of the shaft, the oil throwing disc throws the lubricating oil into the groove, and the lubricating oil flows to the bearing.
[0009] In a further technical scheme, the one end of the groove close to the bearing is also communicated with the placing space, so that the lubricating oil flows back to the placing space after passing through the bearing.
[0010] In a further technical scheme, the groove comprises an oil collecting groove arranged on the inner wall of the bearing seat, and one end of the oil collecting groove extends towards the bearing; the oil collecting groove is used for collecting the lubricating oil thrown out by the oil throwing disc.
[0011] In a further technical scheme, the inner wall of the extended end of the bearing seat is provided with a protrusion, and the oil collecting groove is formed between the protrusion and the inner wall of the bearing seat.
[0012] In a further technical scheme, the protrusion is inclined downward from the one end away from the inner wall of the bearing seat to the one end close to the inner wall of the bearing seat.
[0013] In a further technical solution, the oil collecting groove is inclined downward from the end close to the oil return groove to the end away from the oil return groove.
[0014] In a further technical solution, the groove further comprises an oil return groove arranged at the bearing seat corresponding to the bearing mounting position, one end of the oil return groove being communicated with the oil collecting groove, and the other end being communicated with the placing space through the bearing.
[0015] The technical scheme adopted by the utility model can achieve the following beneficial effects:
[0016] The bearing lubricating structure of the application adds lubricating oil in the placing space, the shaft drives the oil throwing disc to rotate synchronously in the rotating process of the shaft, the oil throwing disc throws the lubricating oil in the placing space to the groove, and the lubricating oil flows to the bearing through the groove, thereby lubricating the bearing. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.
[0018] Figure 1 It is the structural schematic diagram of the bearing lubricating structure of the utility model;
[0019] Figure 2 It is Figure 1 the sectional view of A-A surface in it;
[0020] Figure 3 It is Figure 1 the sectional view of B-B surface in it.
[0021] In the drawing:
[0022] 100-shaft, 110-bearing, 120-bearing seat, 121-oil return groove, 122-protrusion, 123-oil collecting groove, 130-oil throwing disc, 140-placing space, 141-lubricating oil. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the scope protected by the utility model.
[0024] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, not to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally a class, not limited to the number of objects, for example, the first object can be one or more.
[0025] A bearing 110 lubrication structure, please refer to Figures 1-3 As shown, it includes bearing 110, bearing seat 120 and oil throwing disc 130.
[0026] As Figure 1 And Figure 2 Shown, bearing 110 is set on the shaft 100. Bearing 110 plays a key role in supporting rotating parts, reducing friction resistance and transmitting load during the rotation of shaft 100. It converts the sliding friction between shaft 100 and bearing seat 120 into rolling friction or low resistance sliding through the design of internal rolling body (such as ball, roller) or sliding contact surface, thereby effectively reducing the energy loss during rotation and improving mechanical efficiency. At the same time, bearing 110 can bear the radial load transmitted by shaft 100 and shaft 100 load, maintain the rotation accuracy and position stability of shaft 100 system, prevent wear, vibration or deviation caused by direct friction, and ensure the smooth operation and long service life of the transmission system.
[0027] As Figure 1 And Figure 2 Shown, bearing seat 120 is used for installing bearing 110 and outer cavity of shaft 100 system. Bearing seat 120 is a basic component for installing and fixing bearing 110, which mainly functions to provide stable support and positioning for bearing 110, ensure the centring of bearing 110 and shaft 100 system, and transmit the load borne by bearing 110 to the base or mechanical structure.
[0028] As Figure 1As shown, one end of the bearing housing 120 extends along the axis 100 of the shaft 100 and forms a placement space 140 for placing lubricating oil 141. The placement space 140 can store an appropriate amount of lubricating oil 141, forming an oil pool or oil bath environment. Furthermore, the bearing housing 120 can also prevent external contaminants from entering the placement space 140, thus avoiding contamination of the lubricating oil 141.
[0029] like Figure 1 As shown, the oil slinger 130 is sleeved on the shaft 100 and cannot rotate relative to the shaft 100. The oil slinger 130 is limited along the circumference of the shaft 100, and the oil slinger 130 rotates synchronously with the shaft 100 during the rotation of the shaft 100.
[0030] like Figures 1-3 As shown, the inner wall of the bearing housing 120 is also provided with grooves, one end of which communicates with the bearing 110. At least a portion of the oil slinger 130 is immersed in lubricating oil 141 located in the placement space 140; as the shaft 100 rotates, the oil slinger 130 causes the lubricating oil 141 to be thrown into the grooves and flow to the bearing 110, thereby lubricating the bearing 110. Compared with the prior art, this embodiment, by using the oil slinger 130 to throw the lubricating oil 141 into the grooves and flow to the bearing 110, not only ensures that the bearing 110 has sufficient lubricating oil 141 for lubrication, but also removes the heat generated by the operation of the bearing 110, thereby increasing the service life of the bearing 110.
[0031] One end of the groove near the bearing 110 is also connected to the placement space 140, so that the lubricating oil 141 flows back to the placement space 140 after passing through the bearing 110. The connection between the groove and the placement space 140 realizes the circulation and return of the lubricating oil 141, which can continuously provide lubrication and heat dissipation for the bearing 110, reduce friction loss, and prevent the lubricating oil 141 from stagnating or leaking, ensuring stable system operation. At the same time, it simplifies the lubrication and maintenance process and extends the service life of the bearing 110 and the equipment.
[0032] like Figure 3 As shown, the groove includes an oil collection groove 123 disposed on the inner wall of the bearing housing 120, with one end of the oil collection groove 123 extending toward the bearing 110; the oil collection groove 123 is used to collect the lubricating oil 141 thrown out by the oil slinger 130. Some of the lubricating oil 141 carried out by the rotation of the oil slinger 130 will be splashed onto the inner wall of the bearing housing 120, and under the action of gravity, it will slide down along the inner wall of the bearing housing 120, and then enter the oil collection groove 123, and flow along the groove toward the bearing 110.
[0033] like Figure 3As shown, the inner wall of one extended end of the bearing housing 120 is provided with a protrusion 122, and an oil collection groove 123 is formed between the protrusion 122 and the inner wall of the bearing housing 120. Since the oil collection groove 123 is formed between the protrusion 122 and the inner wall of the bearing housing 120, the oil collection groove 123 can effectively collect the lubricating oil that slides down along the inner wall of the bearing housing 120, and allow this portion of lubricating oil 141 to flow to the bearing 110.
[0034] In this embodiment, the protrusion 122 can be one, two, three or more, and can be flexibly set according to the usage requirements. There is no limitation on it here.
[0035] like Figure 3 As shown, the protrusion 122 slopes downward from the end away from the inner wall of the bearing housing 120 to the end near the inner wall of the bearing housing 120. When the lubricating oil 141 slides down along the inner wall of the bearing housing 120, the presence of the protrusion 122 prevents the lubricating oil 141 from continuing to slide down, and because the protrusion 122 slopes downward from the end away from the inner wall of the bearing housing 120 to the end near the inner wall of the bearing housing 120, more lubricating oil 141 can be stored in the oil collection groove 123.
[0036] The oil collecting groove 123 slopes downward from the end furthest from the return oil groove 121 to the end closest to the return oil groove 121. Because the oil collecting groove 123 slopes downward from the end furthest from the return oil groove 121 to the end closest to the return oil groove 121, the lubricating oil 141 in the oil collecting groove 123 can automatically flow to the bearing 110 under the action of gravity, ensuring that there is enough lubricating oil 141 to lubricate the bearing 110.
[0037] like Figure 2 As shown, the groove also includes an oil return groove 121 disposed in the bearing housing 120 corresponding to the bearing 110 mounting position. One end of the oil return groove 121 is connected to the oil collection groove 123, and the other end is connected to the placement space 140 after passing through the bearing 110. The lubricating oil 141 on the oil collection groove 123 flows into the oil return groove 121, continuously provides lubrication and heat dissipation for the bearing 110, and then flows back into the oil return groove 121, realizing the circulation and return of the lubricating oil 141.
[0038] In this embodiment, there can be one, two, three or more oil return grooves 121, which can be flexibly set according to usage requirements, and there is no limitation on them here.
[0039] It should be noted that, in this document, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.
[0040] Further, it is to be understood that the scope of the methods and apparatus of the present embodiments are not limited by the order of execution of the functions as illustrated or discussed, nor by the order of the steps as described. For example, the described methods can be executed in an order other than the order described, and / or various steps can be combined, eliminated, or modified, and / or additional steps can be added. Further, features described with respect to certain examples can be combined in other examples.
[0041] The above only describes the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered by the protection scope of the present application.
Claims
1. A bearing lubrication structure characterized by, The application relates to a bearing assembly for a rotating machine, comprising: a bearing sleeved on a shaft; a bearing housing for mounting the bearing and a rotor component, the bearing housing extending in an axial direction at one end and forming a placement space for placing lubricating oil, and an inner wall of the bearing housing being provided with a groove for collecting and conveying the lubricating oil, one end of the groove being in communication with the bearing; a flinger sleeved on the shaft and unable to rotate relative to the shaft, at least part of the flinger being immersed in the lubricating oil in the placement space, and the flinger causing the lubricating oil to be thrown into the groove and flow to the bearing as the shaft rotates.
2. A bearing lubrication arrangement according to claim 1, wherein The other end of the groove close to the bearing is also in communication with the placement space, so that the lubricating oil flows back to the placement space after passing through the bearing.
3. A bearing lubrication arrangement according to claim 2, wherein The groove comprises an oil collecting groove arranged on the inner wall of the bearing housing, one end of the oil collecting groove extending towards the bearing, and the oil collecting groove being used for collecting the lubricating oil thrown out by the flinger.
4. A bearing lubrication arrangement according to claim 3, wherein The inner wall of the extended end of the bearing housing is provided with a protrusion, and the oil collecting groove is formed between the protrusion and the inner wall of the bearing housing.
5. A bearing lubrication arrangement according to claim 4, wherein The protrusion is inclined downward from the end far away from the inner wall of the bearing housing to the end close to the inner wall of the bearing housing.
6. A bearing lubrication arrangement according to claim 3, wherein The groove further comprises an oil returning groove arranged on the bearing housing and corresponding to the bearing, one end of the oil returning groove being in communication with the oil collecting groove, and the other end of the oil returning groove being in communication with the placement space after passing through the bearing.
7. A bearing lubrication arrangement according to claim 6, wherein The oil collecting groove is inclined downward from the end far away from the oil returning groove to the end close to the oil returning groove.