Bearing seat with good sealing performance
By setting two shaft seals at both ends of the bearing housing, the sealing effect is enhanced, solving the problem of insufficient sealing of existing bearing housings, and achieving stable storage of lubricating oil and no oil leakage for a long time.
Patent Information
- Application Number
- CN202520102665.7
- 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 housing has limited sealing effect, and a single shaft seal is prone to wear, leading to oil leakage.
Two shaft seals are provided at both ends of the bearing housing. Through the design of support rings and limit rings, a cylindrical structure is formed to enhance the sealing effect.
The bearing housing's sealing performance is improved, and the lubricating oil is stably stored in the oil reservoir, making it less prone to leakage during long-term use.
Smart Images
Figure CN223498457U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing housing technology, specifically a bearing housing with good sealing performance. Background Technology
[0002] A bearing housing is a device used to support bearings. It can withstand comprehensive loads and features a compact structure, flexible rotation, and convenient maintenance. The main function of a bearing housing is to fix the bearing, ensure its normal operation, and withstand various forces and torques from mechanical equipment.
[0003] Bearing housings typically have shaft seals installed at their ends. These seals trap the lubricating oil within the housing, ensuring adequate lubrication of the bearing. However, existing bearing housings usually only have one shaft seal, resulting in limited sealing effectiveness. Furthermore, a single shaft seal is prone to wear and leakage. Therefore, we propose a bearing housing with superior sealing performance. Utility Model Content
[0004] This utility model provides a bearing housing with good sealing performance, which has the advantage of having two shaft seals at both ends of the bearing housing, thereby improving the sealing effect and solving the problems mentioned in the background art.
[0005] The technical solution of this utility model is implemented as follows: A bearing housing with good sealing performance includes an upper housing and a lower housing that can be detachably installed together. Semi-circular bushings are connected to both ends of the upper and lower housings. The upper and lower bushings are spliced together to form a cylindrical structure. Each bushing is provided with a first sealing groove. A support ring is provided at the opening of the bushing. The edge of the support ring is detachably connected to the end of the bushing. A second sealing groove is provided at the inner edge of the support ring away from the bushing. A limiting ring is provided at the opening of the second sealing groove. The edge of the limiting ring is detachably connected to the end of the support ring. Bearings for supporting shafts are installed in both ends of the upper and lower housings. Shaft seals are provided in both the second and first sealing grooves. The shaft seals are in elastic contact with the shaft.
[0006] Preferably, the upper housing includes two second annular seats, which are symmetrically arranged and connected to each other by a second arc-shaped outer shell. The lower housing includes two first annular seats, which are symmetrically arranged and connected to each other by a first arc-shaped outer shell. The ends of the two first annular seats that are far apart from each other and the ends of the two second annular seats that are far apart from each other are respectively connected to the bushing. The second annular seats are detachably mounted on the first annular seats, and the first arc-shaped outer shell is placed on the second arc-shaped outer shell.
[0007] Preferably, the second annular seat and the first annular seat are provided with bearing placement grooves for placing bearings.
[0008] Preferably, the inner ends of the first arc-shaped outer shell and the inner ends of the second arc-shaped outer shell are respectively provided with semi-circular limiting rings, and each limiting ring is provided with multiple flow grooves that communicate with the bearing placement groove.
[0009] Preferably, the second annular seat has connecting seats at both ends, and the connecting seats are fastened to the top of the first annular seat by bolts.
[0010] Preferably, the bottom of the first annular seat is provided with a mounting seat, and each mounting seat is provided with a hole.
[0011] Preferably, an oil storage chamber is formed between the first arc-shaped outer shell and the second arc-shaped outer shell, and an oil injection hole communicating with the oil storage chamber is provided on the first arc-shaped outer shell and the second arc-shaped outer shell respectively, and a plug is provided in the oil injection hole.
[0012] Preferably, the edge of the support ring is provided with a connecting flange, and the connecting flange is fastened to the end of the bushing and the edge of the limiting ring is fastened to the end of the support ring by bolts.
[0013] Compared with the prior art, in use, the present invention forms an oil storage chamber between the first arc-shaped outer shell and the second arc-shaped outer shell. The lubricating oil in the oil storage chamber can provide lubrication for the bearing. Moreover, the oil storage chamber has a large internal space, which results in a relatively large amount of lubricating oil being stored. Furthermore, both the second sealing groove and the first sealing groove are equipped with shaft seals, resulting in two shaft seals at each end of the upper and lower shells. This ensures that the lubricating oil is stably stored inside the oil storage chamber under the sealing of the two shaft seals, and will not easily leak even after long-term use. 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.
[0016] Figure 2 This is a schematic diagram of the internal structure of the present invention. Figure 1 .
[0017] Figure 3 This is a schematic diagram of the internal structure of the present invention. Figure 2 .
[0018] Figure 4 This is a schematic diagram of the limiting ring and the arc-shaped outer shell of this utility model.
[0019] Figure 5This is a three-dimensional sectional view of the present invention.
[0020] Figure 6 This is a planar sectional view of the present invention.
[0021] In the figure: 1. First annular seat; 2. Connecting seat; 3. Second annular seat; 4. First arc-shaped outer shell; 5. Oil injection hole; 6. Bushing; 7. Connecting flange; 8. Limiting ring; 9. Support ring; 10. Second arc-shaped outer shell; 11. Mounting seat; 12. First sealing groove; 13. Bearing placement groove; 14. Flow groove; 15. Limiting ring; 17. Second sealing groove. Detailed Implementation
[0022] 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.
[0023] Reference Figures 1 to 6 This utility model provides a technical solution: a bearing housing with good sealing performance, wherein two second annular seats 3 are symmetrically arranged and connected to each other by a second arc-shaped outer shell 10, and the two second annular seats 3 and the second arc-shaped outer shell 10 constitute the upper shell;
[0024] Furthermore, the two first annular seats 1 are symmetrically arranged and connected by the first arc-shaped outer shell 4, which together constitute the lower housing. During installation, the upper housing is placed above the lower housing, and bearings for supporting the shaft are installed at both ends of the upper and lower housings. The upper and lower housings can be detachably installed together.
[0025] Furthermore, such as Figure 2 and Figure 3 As shown, bearing placement grooves 13 for placing bearings are provided in the second annular seat 3 and the first annular seat 1, and the bearings are fixed in the bearing placement grooves 13.
[0026] In this application, semi-circular bushings 6 are connected to both ends of the upper and lower outer shells, such as... Figure 2 and Figure 3 As shown, the bushing 6 is specifically set on the ends of the two first annular seats 1 that are far apart from each other and the ends of the two second annular seats 3 that are far apart from each other. When the upper and lower housings are installed together, the upper and lower bushings 6 are spliced together to form a cylindrical structure. The upper and lower bushings 6 are spliced together to achieve a seal. A first sealing groove 12 is provided in each bushing 6.
[0027] In practical applications, the upper and lower housings contain lubricating oil for the bearings. To ensure the lubricating oil is sealed, such as... Figure 5 and Figure 6 As shown, a support ring 9 is provided at the opening of the bushing 6. The edge of the support ring 9 is detachably connected to the end of the bushing 6. Specifically, a connecting flange 7 is provided on the edge of the support ring 9. The connecting flange 7 is fastened to the end of the bushing 6 by multiple bolts.
[0028] A second sealing groove 17 is provided on the inner edge of the support ring 9 away from the bushing 6. A limiting ring 8 is provided at the opening of the second sealing groove 17. The edge of the limiting ring 8 is detachably connected to the end of the support ring 9. Specifically, the edge of the limiting ring 8 is fastened to the end of the support ring 9 by bolts.
[0029] Both the second sealing groove 17 and the first sealing groove 12 are equipped with shaft seals, which elastically contact the shaft, thus providing two shaft seals at each end of the upper and lower housings. Figure 5 As shown, an oil reservoir is formed between the first arc-shaped outer shell 4 and the second arc-shaped outer shell 10. The lubricating oil in the oil reservoir can provide lubrication for the bearing. The oil reservoir has a large internal space, which results in a relatively large amount of lubricating oil being stored. This lubricating oil will be stably stored inside the oil reservoir under the sealing of two shaft seals and will not leak out during long-term use.
[0030] Furthermore, semi-circular limiting rings 15 are provided at both ends of the inner side of the first arc-shaped outer shell 4 and the inner side of the second arc-shaped outer shell 10. The limiting rings 15 can strengthen the strength of the first arc-shaped outer shell 4 and the second arc-shaped outer shell 10. In order to prevent the limiting rings 15 from blocking the flow of lubricating oil, multiple flow grooves 14 communicating with the bearing placement groove 13 are specially provided on each limiting ring 15.
[0031] Furthermore, the installation process of the bearing housing will be described below. Before installation, the upper and lower housings are opened, and the bearings are placed in the bearing placement grooves 13 in the lower housing, and then the upper housing is closed. During installation, the second annular seat 3 is detachably installed on the first annular seat 1. Specifically, connecting seats 2 are provided at both ends of the second annular seat 3. The connecting seats 2 are fastened to the top of the first annular seat 1 by bolts. At this time, the first arc-shaped outer shell 4 is placed on the second arc-shaped outer shell 10. Under the action of the bolts, the first arc-shaped outer shell 4 and the second arc-shaped outer shell 10 are tightly fitted and sealed.
[0032] At the bottom of the first annular seat 1, there are mounting seats 11 respectively. Each mounting seat 11 has a hole. The mounting seat 11 is used to fasten the bearing seat to the preset position by bolts.
[0033] Based on the above embodiments, further optimization can be made. After long-term use, the lubricating oil in the oil storage chamber needs to be replaced or added. In order to facilitate the addition of lubricating oil, oil injection holes 5 communicating with the oil storage chamber are respectively provided on the first arc-shaped outer shell 4 and the second arc-shaped outer shell 10. A plug is provided in the oil injection hole 5. The plug is a sealing bolt, and the sealing bolt is threadedly installed in the oil injection hole 5.
[0034] 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 housing with good sealing performance, comprising an upper housing and a lower housing that are detachably mounted together, characterized in that, The upper and lower outer shells are respectively connected to semi-circular bushings (6). The upper and lower bushings (6) are spliced together to form a cylindrical structure. Each bushing (6) is provided with a first sealing groove (12). A support ring (9) is provided at the opening of the bushing (6). The edge of the support ring (9) is detachably connected to the end of the bushing (6). A second sealing groove (17) is provided at the inner edge of the support ring (9) away from the bushing (6). A limiting ring (8) is provided at the opening of the second sealing groove (17). The edge of the limiting ring (8) is detachably connected to the end of the support ring (9). Bearings for supporting the shaft are installed in both ends of the upper and lower housings. Shaft seals are provided in both the second sealing groove (17) and the first sealing groove (12), and the shaft seals are in elastic contact with the shaft.
2. The bearing housing with good sealing performance as described in claim 1, characterized in that, The upper shell includes two second annular seats (3), which are symmetrically arranged and connected to each other by a second arc-shaped outer shell (10); The lower housing includes two first annular seats (1), which are symmetrically arranged and connected to each other by a first arc-shaped outer shell (4); The ends of the two first annular seats (1) and the ends of the two second annular seats (3) that are far apart from each other are respectively connected to the bushing (6); and the second annular seats (3) are respectively detachably installed on the first annular seats (1), and the first arc-shaped outer shell (4) is placed on the second arc-shaped outer shell (10).
3. The bearing housing with good sealing performance as described in claim 2, characterized in that, The second annular seat (3) and the first annular seat (1) are provided with bearing placement grooves (13) for placing bearings.
4. The bearing housing with good sealing performance as described in claim 3, characterized in that, The inner ends of the first arc-shaped outer shell (4) and the inner ends of the second arc-shaped outer shell (10) are respectively provided with semi-circular limiting rings (15), and each limiting ring (15) is provided with multiple flow grooves (14) that communicate with the bearing placement groove (13).
5. The bearing housing with good sealing performance as described in any one of claims 2-4, characterized in that, The second annular seat (3) has connecting seats (2) at both ends, and the connecting seats (2) are fastened to the top of the first annular seat (1) by bolts.
6. The bearing housing with good sealing performance as described in claim 5, characterized in that, The bottom of the first annular seat (1) is provided with mounting seats (11), and each mounting seat (11) is provided with a hole.
7. The bearing housing with good sealing performance as described in claim 4, characterized in that, An oil storage chamber is formed between the first arc-shaped outer shell (4) and the second arc-shaped outer shell (10). An oil injection hole (5) communicating with the oil storage chamber is provided on the first arc-shaped outer shell (4) and the second arc-shaped outer shell (10), and a plug is provided in the oil injection hole (5).
8. The bearing housing with good sealing performance as described in claim 1, characterized in that, The edge of the support ring (9) is provided with a connecting flange (7), and the connecting flange (7) is fastened to the end of the bushing (6) and the edge of the limiting ring (8) is fastened to the end of the support ring (9) by bolts.