Modular floating oil seal quick change structure
Patent Information
- Application Number
- CN202521599610.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-30
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-07-30
AI Technical Summary
Traditional floating oil seals have low replacement efficiency, require the disassembly of a large number of peripheral parts, result in long downtime, and have insufficient sealing due to their modular design.
The modular floating oil seal quick-change structure includes a core bearing, bearing cap, and inner ring. It utilizes a rubber extrusion gasket and spring structure to achieve quick replacement, and combines bolt connections to improve sealing performance.
It enables quick replacement of floating oil seals, reduces downtime, improves replacement efficiency, and enhances sealing performance.
Smart Images

Figure CN224932064U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of quick-change sealing technology, and in particular to a modular floating oil seal quick-change structure. Background Technology
[0002] Floating oil seals (such as those used in construction machinery, mining equipment, and ship shafting) are key sealing components for heavy equipment. Traditional structures are usually integral designs, fixed by bolts or interference fits.
[0003] However, this design has a problem: low replacement efficiency. It requires the disassembly of a large number of peripheral parts (such as bearing housings and end caps), resulting in downtime of up to several hours, which affects production efficiency. In addition, modular designs generally have the problem of insufficient sealing.
[0004] To address the above issues, we propose a modular floating oil seal quick-change structure. Utility Model Content
[0005] The purpose of this invention is to solve the problems in the background art by proposing a modular floating oil seal quick-change structure.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a modular floating oil seal quick-change structure, including a core bearing, wherein the core bearing is designed in a modular mode, the core bearing includes a bearing cover and an inner ring, both the inner and outer sides of the inner ring are provided with sealing structures, and the outer side of the core bearing and the inner side of the bearing cover are provided with quick-change sealing structures.
[0007] In the above-mentioned modular floating oil seal quick-change structure, the quick-change sealing structure of the core bearing includes a spring, which is fixedly connected to the outer side wall of the core bearing. There are multiple springs, and each of the ends of the multiple springs is fixedly connected to a pressure plate. The core bearing has a groove and multiple holes on its outer side.
[0008] In the above-mentioned modular floating oil seal quick-change structure, the inner side of the bearing cover is provided with a groove II, and the outer side of the bearing cover is provided with multiple threaded holes. Bolts are threaded into the multiple threaded holes, and a soft pad is fixedly connected to the bottom of the bolts.
[0009] In the above-mentioned modular floating oil seal quick-change structure, the outer side wall of the inner ring is fixedly connected to a compression sealing gasket, and the inner side wall of the compression sealing gasket is fixedly connected to an elastic gasket.
[0010] In the above-mentioned modular floating oil seal quick-change structure, the size of the first groove is larger than that of the compression sealing gasket, the multiple springs are evenly arranged on the outer side wall of the core bearing, the multiple holes are evenly arranged on the outer side of the core bearing, and the size of the multiple holes is equal to that of the threaded hole.
[0011] In the above-mentioned modular floating oil seal quick-change structure, the width of the second groove is equal to the width of the core bearing, and multiple threaded holes are evenly arranged on the outside of the bearing cover. The extrusion sealing gasket and the soft gasket are both made of rubber.
[0012] Compared with existing technologies, the advantages of this modular floating oil seal quick-change structure are: The first groove of this utility model is used to mate with the inner ring, and the second groove is used to mate with the core bearing. The inner ring is installed inside the core bearing and contacts the first groove. The bearing cover is installed outside the core bearing and contacts the core bearing through the second groove. The extrusion sealing gasket is made of rubber and has good elasticity. When it contacts the core bearing, the size of the inner ring can match the core bearing well. Attached Figure Description
[0013] Figure 1 This is a front view of a modular floating oil seal quick-change structure proposed in this utility model; Figure 2 This is a rear view of a modular floating oil seal quick-change structure proposed in this utility model; Figure 3 This is a side view of a modular floating oil seal quick-change structure proposed in this utility model.
[0014] In the diagram: 1. Core bearing, 2. Bearing cover, 3. Groove 1, 4. Groove 2, 5. Spring, 6. Pressure plate, 7. Bolt, 8. Soft pad, 9. Hole, 10. Inner ring, 11. Extrusion sealing gasket, 12. Elastic gasket. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0016] Reference Figures 1-3A modular floating oil seal quick-change structure includes a core bearing 1, which is designed in a modular manner. The core bearing 1 includes a bearing cover 2 and an inner ring 10. Sealing structures are provided on both the inner and outer sides of the inner ring 10. Quick-change sealing structures are provided on the outer side of the core bearing 1 and the inner side of the bearing cover 2. The quick-change sealing structure of the core bearing 1 includes springs 5, which are fixedly connected to the outer wall of the core bearing 1. Multiple springs 5 are present, and pressure plates 6 are fixedly connected to the ends of each spring 5. A groove 3 is provided inside the core bearing 1, and multiple holes 9 are provided on the outer side of the core bearing 1. The bearing cap 2 has a second groove 4 on its side. Multiple threaded holes are provided on the outer side of the bearing cap 2, each threaded with a bolt 7. A soft pad 8 is fixedly connected to the bottom of each bolt 7. A compression sealing gasket 11 is fixedly connected to the outer wall of the inner ring 10, and an elastic gasket 12 is fixedly connected to the inner wall of the compression sealing gasket 11. The size of the first groove 3 is larger than that of the compression sealing gasket 11. Multiple springs 5 are evenly distributed on the outer wall of the core bearing 1. Multiple holes 9 are evenly distributed on the outer side of the core bearing 1, and the size of each hole 9 is equal to the size of the threaded holes. The width of the second groove 4 is equal to the width of the core bearing 1. Multiple threaded holes are evenly distributed... On the outside of the bearing cover 2, both the extrusion seal 11 and the soft pad 8 are made of rubber. Groove 1 3 is used to mate with the inner ring 10, and groove 2 4 is used to mate with the core bearing 1. The inner ring 10 is installed inside the core bearing 1 and contacts groove 1 3. The bearing cover 2 is installed outside the core bearing 1 and contacts it through groove 2 4. Because the extrusion seal 11 is made of rubber, it has good elasticity. When in contact with the core bearing 1, the size of the inner ring 10 can fit well with the core bearing 1. During mating, the extrusion seal 11 will be deformed by extrusion force, thus ensuring good... The inner side of the core bearing 1 is sealed, and the elastic gasket 12 can also improve the sealing performance of the inner ring in contact with other components. When the bearing cover 2 contacts the core bearing 1, the core bearing 1 fits in the groove 2 4. At this time, the spring 5 will be compressed, and the friction between the core bearing 1 and the bearing cover 2 will be increased through the pressure plate 6. Then, by rotating the bolt 7, it will pass through the hole 9. When the soft pad 8 contacts the core bearing 1, it can improve the sealing performance of the outer side of the core bearing 1. This equipment comprehensively achieves the modularity and improves the sealing performance by separating the core bearing 1, bearing cover 2 and inner ring 10 through the above connection and cooperation.
[0017] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.
[0018] 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 modular floating oil seal quick-change structure, comprising a core bearing (1), characterized in that, The core bearing (1) is designed in a modular mode. The core bearing (1) includes a bearing cover (2) and an inner ring (10). Both the inner and outer sides of the inner ring (10) are provided with sealing structures. The outer side of the core bearing (1) and the inner side of the bearing cover (2) are provided with quick-replacement sealing structures.
2. The modular floating oil seal quick-change structure according to claim 1, characterized in that, The quick-change sealing structure of the core bearing (1) includes a spring (5), which is fixedly connected to the outer wall of the core bearing (1). There are multiple springs (5), and each of the multiple springs (5) is fixedly connected to a pressure plate (6). The core bearing (1) has a groove (3) inside, and multiple holes (9) are provided on the outer side of the core bearing (1).
3. The modular floating oil seal quick-change structure according to claim 1, characterized in that, The bearing cover (2) has a groove 2 (4) on its inner side and multiple threaded holes on its outer side. Bolts (7) are threaded into the multiple threaded holes and a soft pad (8) is fixedly connected to the bottom of the bolts (7).
4. The modular floating oil seal quick-change structure according to claim 3, characterized in that, The outer side wall of the inner ring (10) is fixedly connected to a compression sealing gasket (11), and the inner side wall of the compression sealing gasket (11) is fixedly connected to an elastic gasket (12).
5. A modular floating oil seal quick-change structure according to claim 2, characterized in that, The size of the groove (3) is larger than that of the compression sealing gasket (11). The multiple springs (5) are evenly arranged on the outer side wall of the core bearing (1). The multiple holes (9) are evenly arranged on the outer side of the core bearing (1). The size of the multiple holes (9) is equal to that of the threaded hole.
6. The modular floating oil seal quick-change structure according to claim 4, characterized in that, The width of the second groove (4) is equal to the width of the core bearing (1), and the multiple threaded holes are evenly arranged on the outside of the bearing cover (2). The extrusion sealing gasket (11) and the soft pad (8) are both made of rubber.
