Bearing cover capable of conveniently changing oil
By designing a bearing cover with an annular oil reservoir and an expandable sealing component, the problem of the bearing cover not having oil storage capacity was solved, achieving good lubrication and sealing of the bearing and improving the convenience of lubricant management.
Patent Information
- Application Number
- CN202520102660.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2035-01-16
AI Technical Summary
The existing bearing cover does not have an oil storage function, which causes the lubricating oil to be stored in the gap between the bearing housing and the bearing, making it prone to wear and oil leakage.
Design a bearing cover that facilitates oil changes, comprising an annular disc, an oil reservoir, an oil change hole, and an expandable sealing assembly. The annular oil reservoir stores lubricating oil, and the oil change hole facilitates the injection and discharge of lubricating oil. The expandable sealing assembly ensures a good seal.
This achieves a good lubrication environment for the bearings, avoids oil leakage problems, and improves the bearing's sealing performance and the ease of lubricant management.
Smart Images
Figure CN223498456U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing cover technology, specifically a bearing cover that facilitates oil changes. Background Technology
[0002] Bearing caps are important components that protect bearings. They are usually made of cast iron or cast steel and are installed on top of the bearing to prevent external contamination and damage. Bearing caps are part of the bearing housing, and their main functions include supporting bearing movement, positioning the bearing, and preventing dust and contamination.
[0003] Existing bearing covers lack oil storage functionality; instead, the lubricating oil for bearing lubrication is stored in the gap between the bearing housing and the bearing. Furthermore, after the bearing cover is fitted onto the shaft, the shaft seal is prone to wear, leading to oil leakage after prolonged operation. Therefore, we propose a bearing cover that facilitates easy oil changes. Utility Model Content
[0004] This invention provides a bearing cover that facilitates oil changes, enabling the bearing cover to store oil and allowing for easy oil changes and filling after opening the sealing plug, thus solving the problems mentioned in the background art.
[0005] The technical solution of this utility model is implemented as follows: a bearing cover that facilitates oil change includes an annular disc, the edge of which is provided with mounting holes, an annular oil reservoir is coaxially provided on one side of the annular disc, and at least two oil change holes communicating with the annular oil reservoir are provided on the other side of the annular disc. Each oil change hole is provided with a detachable sealing plug, and an oil seal groove is provided at the inner edge of the annular disc away from the annular oil reservoir. An expandable sealing component is provided in the oil seal groove.
[0006] Preferably, the expandable sealing assembly includes an elastic oil seal ring disposed within an oil seal ring groove, an annular receiving groove coaxially provided on the side of the oil seal ring away from the annular oil reservoir, an annular expansion block provided at the opening of the annular receiving groove, and an annular stop coaxially located at the opening of the oil seal ring groove. The edge of the annular stop is detachably connected to the annular disc, and the annular stop presses the annular expansion block into the annular receiving groove, with the annular expansion block and the annular receiving groove having a conical surface contact.
[0007] Preferably, the annular stop has an annular edge, which is fastened to the annular disc by bolts.
[0008] Preferably, the annular stop is provided with an annular groove on the side of the annular plate close to the annular plate, the annular expansion block is placed in the annular groove, and a plurality of elastic bodies supporting the annular expansion block are provided on the side of the annular groove away from the annular plate, so that the elastic bodies push the annular expansion block into the annular receiving groove.
[0009] Preferably, the annular groove is provided with a number of cylindrical holes at intervals on the side away from the annular disk.
[0010] Preferably, the elastomer is an elastic block disposed within a cylindrical hole.
[0011] Preferably, the elastic body is a support spring disposed in the cylindrical hole.
[0012] Preferably, the side of the annular oil reservoir facing the bearing is wide-mouthed.
[0013] Compared with the prior art, in use, the annular oil reservoir on one side of the annular disc can store lubricating oil, which wets the bearing and provides a better lubrication environment for the bearing. Moreover, when both sealing plugs are opened, the lubricating oil in the bearing housing and the annular oil reservoir can be released, and then new lubricating oil can be injected through the oil change hole. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the structure of this utility model in conjunction with the bearing housing.
[0016] Figure 2 This is a front structural diagram of the present invention.
[0017] Figure 3 This is a structural diagram of the back of the present invention.
[0018] Figure 4 This is a schematic diagram of the bottom structure of the annular stop of this utility model.
[0019] Figure 5 This is a cross-sectional view of the present invention.
[0020] In the diagram: 1. Annular disc; 2. Sealing plug; 3. Mounting hole; 4. Oil change hole; 5. Oil seal ring groove; 6. Oil seal ring; 7. Annular stop; 8. Annular edge; 9. Annular oil reservoir; 10. Annular groove; 11. Cylindrical hole; 12. Support spring; 13. Annular receiving groove; 14. Annular expansion block. Detailed Implementation
[0021] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0022] Reference Figures 1 to 5 This utility model provides a technical solution: a bearing cover that facilitates oil changes, comprising an annular disc 1, with mounting holes 3 on the edge of the annular disc 1, bolts for connecting to bearing seats being installed in the mounting holes 3, an annular oil reservoir 9 coaxially provided on one side of the annular disc 1, and at least two oil change holes 4 communicating with the annular oil reservoir 9 on the other side of the annular disc 1. Figure 1 There are two oil change holes 4 in the middle, which are symmetrically arranged. When in use, oil is injected into the annular disk 1 through the oil change holes 4, and the lubricating oil enters the annular oil reservoir 9 for storage. When injecting oil, the oil gun has a certain pressure, and the lubricating oil can flow into the bearing under the pressure. Therefore, the bearing can not only be lubricated, but the lubricating oil stored in the annular oil reservoir 9 can also wet the bearing, providing a better lubrication environment for the bearing.
[0023] Each oil change hole 4 is equipped with a removable sealing plug 2, which is connected by threads. Specifically, the oil change hole 4 has internal threads, while the sealing plug 2 has external threads. The sealing plug 2 is similar in shape to a bolt. When in use, the sealing plug 2 can be tightened or loosened with a wrench. When both sealing plugs 2 are open, the lubricating oil in the bearing housing and the annular oil reservoir 9 can be released, and then new lubricating oil can be injected through the oil change hole 4.
[0024] Alternatively, open both sealing plugs 2 and inject lubricating oil into one oil change hole 4. As the new lubricating oil is injected, the old lubricating oil will be squeezed out from the other oil change hole 4. Stop injecting oil when the new lubricating oil flows out of the other oil change hole 4.
[0025] like Figure 1 As shown, during installation, the annular disc 1 is fitted onto the shaft, as follows. Figure 5 As shown, the inner edge of the annular oil reservoir 9 will hold the bearing ( Figure 1 and Figure 5 The inner ring (pointed to by the middle arrow A) abuts against the bearing, while the outer edge of the annular oil reservoir 9 completely abuts against the bearing, thus fixing the bearing in the bearing hole of the bearing housing and preventing unnecessary axial displacement of the bearing. Moreover, the annular oil reservoir 9 is directly opposite the bearing balls, allowing the balls to fully contact the lubricating oil.
[0026] Furthermore, to ensure the lubricating oil can be sealed, an oil seal ring groove 5 is provided on the inner edge of the annular disc 1 away from the annular oil reservoir 9, and an expandable sealing assembly is provided in the oil seal ring groove 5. The expandable sealing assembly includes an elastic oil seal ring 6 disposed in the oil seal ring groove 5, and an annular receiving groove 13 is coaxially provided on the side of the oil seal ring 6 away from the annular oil reservoir 9;
[0027] An annular expansion block 14 is provided at the opening of the annular receiving groove 13, and an annular stop 7 is coaxially provided at the opening of the oil seal annular groove 5. The edge of the annular stop 7 is detachably connected to the annular disk 1. Specifically, an annular edge 8 is provided at the edge of the annular stop 7, and the annular edge 8 is fastened to the annular disk 1 by bolts.
[0028] After the annular edge 8 is installed with the annular disk 1, the annular stop 7 presses the annular expansion block 14 into the annular receiving groove 13, and the annular expansion block 14 and the annular receiving groove 13 are in conical surface contact. It should be noted that the side of the annular expansion block 14 closest to the annular stop 7 is exposed outside the annular receiving groove 13, so that the length of the annular expansion block 14 extending into the annular receiving groove 13 is long enough.
[0029] Next, an annular groove 10 is coaxially provided on the side of the annular stop 7 near the annular disk 1. The annular expansion block 14 is placed in the annular groove 10. On the side of the annular groove 10 away from the annular disk 1, there are multiple elastic bodies that support the annular expansion block 14. The elastic bodies push the annular expansion block 14 into the annular receiving groove 13, so that the annular receiving groove 13 is opened, allowing the oil seal ring 6 to expand towards the shaft surface, making the contact part between the oil seal ring 6 and the shaft tighter, so that the shaft can get better sealing. Even if the oil seal ring 6 wears slightly during long-term contact between the shaft and the oil seal ring 6, the oil seal ring 6 can still be in tight contact with the shaft under the push of the annular expansion block 14 and maintain a seal.
[0030] To ensure the stability of each elastic body, the elastic body is disposed within the cylindrical holes 11. Specifically, a plurality of cylindrical holes 11 are spaced apart on the side of the annular groove 10 away from the annular disk 1. The elastic body in this application takes two forms. Firstly, the elastic body is an elastic block disposed within the cylindrical holes 11, specifically an elastic rubber block. The elastic force of the elastic block pushes the annular expansion block 14 into the annular receiving groove 13. Secondly, the elastic body is a support spring 12 disposed within the cylindrical holes 11. In this form, the support spring 12 pushes the annular expansion block 14 into the annular receiving groove 13. Both forms can stably position the annular expansion block 14 within the annular receiving groove 13.
[0031] Furthermore, such as Figure 5 As shown, the side of the annular oil reservoir 9 facing the bearing is wide-mouthed, which increases the oil storage space and the amount of oil stored.
[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A bearing cover for easy oil changing, comprising an annular disc (1), wherein the edge of the annular disc (1) is provided with mounting holes (3), characterized in that, An annular oil storage tank (9) is coaxially provided on one side of the annular disk (1); At least two oil change holes (4) communicating with the annular oil storage tank (9) are provided on the other side of the annular disc (1), and each oil change hole (4) can be detachably provided with a sealing plug (2); An oil seal groove (5) is provided on the inner edge of the annular disk (1) away from the annular oil reservoir (9), and an expandable sealing component is provided in the oil seal groove (5).
2. The bearing cap for easy oil changing as described in claim 1, characterized in that, The expandable sealing assembly includes an elastic oil seal ring (6) disposed in the oil seal ring groove (5), and an annular receiving groove (13) is coaxially provided on the side of the oil seal ring (6) away from the annular oil reservoir (9); An annular expansion block (14) is provided at the opening of the annular receiving groove (13); and, It also includes an annular stop (7) located coaxially at the opening of the oil seal ring groove (5). The edge of the annular stop (7) is detachably connected to the annular disk (1), and the annular stop (7) presses the annular expansion block (14) into the annular receiving groove (13), and the annular expansion block (14) and the annular receiving groove (13) are in conical surface contact.
3. The bearing cap for easy oil changing as described in claim 2, characterized in that, The annular stop (7) has an annular edge (8) on its edge, and the annular edge (8) is fastened to the annular disc (1) by bolts.
4. The bearing cap for easy oil changing as described in claim 3, characterized in that, The annular stop (7) is coaxially provided with an annular groove (10) on the side near the annular disk (1). The annular expansion block (14) is placed in the annular groove (10). On the side of the annular groove (10) away from the annular disk (1), there are multiple elastic bodies that support the annular expansion block (14), so that the elastic bodies push the annular expansion block (14) into the annular receiving groove (13).
5. The bearing cap for easy oil changing as described in claim 4, characterized in that, The annular groove (10) is provided with several cylindrical holes (11) at intervals on the side away from the annular disk (1).
6. The bearing cap for easy oil changing as described in claim 5, characterized in that, The elastomer is an elastic block disposed in the cylindrical hole (11).
7. The bearing cap for easy oil changing as described in claim 5, characterized in that, The elastic body is a support spring (12) disposed in the cylindrical hole (11).
8. The bearing cap for easy oil changing as described in claim 1, characterized in that, The annular oil reservoir (9) has a wide opening on the side facing the bearing.