CN219529781U - Novel gearbox bearing hole end sealing structure - Google Patents
Novel gearbox bearing hole end sealing structure Download PDFInfo
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- CN219529781U CN219529781U CN202320898404.1U CN202320898404U CN219529781U CN 219529781 U CN219529781 U CN 219529781U CN 202320898404 U CN202320898404 U CN 202320898404U CN 219529781 U CN219529781 U CN 219529781U
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- bearing
- rigid
- sealing cover
- cover
- hole
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The utility model relates to a novel gearbox bearing hole end sealing structure, and belongs to the technical field of mechanical equipment hole end sealing. The technical proposal is as follows: the rear side of the bearing is provided with a rigid sealing cover (6), the outer wall of the front end of the rigid sealing cover (6) is provided with an annular groove I, an O-shaped sealing ring (5) is arranged in the annular groove I, and the bearing and the rigid sealing cover (6) are sealed through the O-shaped sealing ring (5); an annular groove II is formed in the inner wall of the shell, a hole elastic retainer ring II (4) is arranged in the annular groove II, the hole elastic retainer ring II (4) is tightly attached to the rear end of the rigid sealing cover (6), and the rigid sealing cover (6) is fixed; the rigid sealing cover (6) is provided with a threaded hole. The utility model has the positive effects that: the strength of the rigid sealing cover is high, and the defects of the existing gearbox bearing hole end sealing structure are overcome; and the recycling rate of the whole sealing structure is improved.
Description
Technical Field
The utility model relates to a novel gearbox bearing hole end sealing structure, and belongs to the technical field of mechanical equipment hole end sealing.
Background
In the prior art, referring to fig. 1 and 3, a sealing structure of adding an oil seal cover between first circlips for holes is mostly adopted at the bearing hole end of a gearbox, and the following disadvantages exist in this way: once the hole end sealing structure of the oil seal cover is detached, the oil seal cover cannot be reused, so that the oil seal cover is inconvenient to maintain on site; the oil seal cover is made of rubber material, has softer texture and is damaged and destroyed due to the influence of working environment or field; the oil seal cover is easily damaged due to overheat, overload and overpressure phenomena under the influence of the running time of the machine; in addition, the oil seal cover is scratched by sharp objects occasionally in the assembly process, so that the oil seal is damaged. Accordingly, the seal structure of the bearing bore end of the transmission is to be improved.
Disclosure of Invention
The utility model aims to provide a novel gearbox bearing hole end sealing structure, improve the defects of the existing gearbox bearing hole end sealing structure, improve the recycling rate of the whole sealing structure while ensuring the unchanged sealing performance, and solve the problems in the prior art.
The technical scheme of the utility model is as follows:
the novel gearbox bearing hole end sealing structure comprises a bearing, a hole elastic retainer ring II, an O-shaped sealing ring and a rigid sealing cover, wherein the bearing, the hole elastic retainer ring II, the O-shaped sealing ring and the rigid sealing cover are arranged in a shell; an annular groove II is formed in the inner wall of the shell, a hole elastic retainer ring II is arranged in the annular groove II, and the hole elastic retainer ring II is tightly attached to the rear end of the rigid sealing cover to fix the rigid sealing cover; the rigid sealing cover is provided with a threaded hole.
Further, the bearing is a ball bearing, and a plurality of threaded holes are formed in the rear end face of the rigid sealing cover along the circumferential direction.
Further, the rigid cover rim has a thickness greater than a thickness of a central portion thereof.
Further, the bearing is a roller bearing, and a threaded hole is formed in the middle of the rear end face of the rigid sealing cover.
Further, the thickness of the middle portion of the rigid cover is greater than the thickness of the edges thereof.
Further, the O-shaped sealing ring is respectively clung to the shell, the bearing and the rigid sealing cover.
The utility model has the positive effects that: the strength of the rigid sealing cover is high, and the defects of the existing gearbox bearing hole end sealing structure are overcome; the rigid sealing cover is matched with the bearing hole, so that the repeated utilization rate of the whole sealing structure is improved while the sealing performance is unchanged.
Drawings
FIG. 1 is a schematic view of a seal structure in the background art when the bearing is a ball bearing;
FIG. 2 is a schematic view of a ball bearing according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a seal structure in the background art when the bearing is a roller bearing;
FIG. 4 is a schematic view of a second embodiment of the present utility model when the bearing is a roller bearing;
in the figure: ball bearing 1, circlip for hole 1, oil blanket lid 3, circlip for hole two 4, O type sealing washer 5, rigid closing cap 6, casing 7, roller bearing 8.
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
with reference to fig. 2, embodiment 1: when the bearing to be sealed is a ball bearing.
A novel gearbox bearing hole end sealing structure comprises a bearing arranged in a shell, a second circlip 4 for holes, an O-shaped sealing ring 5 and a rigid sealing cover 6. The rear side of the bearing is provided with a rigid sealing cover 6, the outer wall of the front end of the rigid sealing cover 6 is provided with an annular groove I, an O-shaped sealing ring 5 is arranged in the annular groove I, the bearing and the rigid sealing cover 6 are sealed through the O-shaped sealing ring 5, and the O-shaped sealing ring 5 is respectively clung to the shell, the bearing and the rigid sealing cover 6; an annular groove II is formed in the inner wall of the shell, a hole elastic retainer ring II 4 is arranged in the annular groove II, the hole elastic retainer ring II 4 is tightly attached to the rear end of the rigid sealing cover 6, and the rigid sealing cover 6 is fixed; the rear end face of the rigid sealing cover 6 is provided with a threaded hole (the threaded hole is a process hole) along the circumferential direction; the O-shaped sealing ring 5 is tightly attached to the bearing. In order to ensure the strength of the rigid cover 6 at the threaded hole, the thickness of the edge of the rigid cover 6 is greater than the thickness of the middle part thereof.
With reference to fig. 4, embodiment two: when the bearing to be sealed is a roller bearing.
A novel gearbox bearing hole end sealing structure comprises a bearing arranged in a shell, a second circlip 4 for holes, an O-shaped sealing ring 5 and a rigid sealing cover 6. The rear side of the bearing is provided with a rigid sealing cover 6, the outer wall of the front end of the rigid sealing cover 6 is provided with an annular groove I, an O-shaped sealing ring 5 is arranged in the annular groove I, the bearing and the rigid sealing cover 6 are fixed through the O-shaped sealing ring 5, and the O-shaped sealing ring 5 is respectively clung to the shell, the bearing and the rigid sealing cover 6; an annular groove II is formed in the inner wall of the shell, a hole elastic retainer ring II 4 is arranged in the annular groove II, and the hole elastic retainer ring 4 is tightly attached to the rear end of the rigid sealing cover 6 to seal the rigid sealing cover 6; a threaded hole (the threaded hole is a process hole) is arranged in the middle of the rear end surface of the rigid sealing cover 6; the O-shaped sealing ring 5 is tightly attached to the bearing. In order to ensure the strength of the rigid cover 6 at the threaded hole, the thickness of the middle part of the rigid cover 6 is greater than the thickness of the edge thereof.
In both embodiments, the circlip for hole two 4 is used to secure a rigid closure. The O-shaped sealing rings 5 are used for filling gaps between the rigid sealing cover 6 and the bearing hole ends. The rigid sealing cover 6 and the O-shaped sealing ring 5 replace the first elastic retainer ring 2 and the oil sealing cover 3 for holes in the background art, and threaded holes are formed in the rigid sealing cover. Meanwhile, the rigid sealing cover 6 greatly improves the strength of the sealing structure, and the sealing structure can be used for two embodiments in the drawing and can be popularized and applied to other bearings.
According to different working requirements, the machining positions and the number of the threaded holes of the rigid sealing cover 6 can be changed along with actual conditions, so that convenience is provided for adjusting the rigid sealing cover, and convenience is also provided for disassembling and positioning the sealing structure. Once the hole end sealing structure of the oil sealing cover made of rubber is detached, the oil sealing cover made of rubber cannot be reused, and the sealing structure of the rigid sealing cover 6 can be reused.
Claims (6)
1. A novel gearbox bearing hole end sealing structure is characterized in that: the bearing comprises a bearing, a hole elastic retainer ring II (4), an O-shaped sealing ring (5) and a rigid sealing cover (6) which are arranged in a shell (7), wherein the rigid sealing cover (6) is arranged at the rear side of the bearing, an annular groove I is arranged on the outer wall of the front end of the rigid sealing cover (6), the O-shaped sealing ring (5) is arranged in the annular groove I, and the bearing and the rigid sealing cover (6) are sealed through the O-shaped sealing ring (5); an annular groove II is formed in the inner wall of the shell, a hole elastic retainer ring II (4) is arranged in the annular groove II, the hole elastic retainer ring II (4) is tightly attached to the rear end of the rigid sealing cover (6), and the rigid sealing cover (6) is fixed; the rigid sealing cover (6) is provided with a threaded hole.
2. The novel transmission bearing bore end seal structure of claim 1, wherein: the bearing is a ball bearing (1), and a plurality of threaded holes are formed in the rear end face of the rigid sealing cover (6) along the circumferential direction.
3. The novel transmission bearing bore end seal structure of claim 2, wherein: the thickness of the edge of the rigid cover (6) is larger than that of the middle part of the rigid cover.
4. The novel transmission bearing bore end seal structure of claim 1, wherein: the bearing is a roller bearing (8), and a threaded hole is formed in the middle of the rear end face of the rigid sealing cover (6).
5. The novel transmission bearing bore end seal structure of claim 4, wherein: the thickness of the middle part of the rigid cover (6) is larger than that of the edge.
6. The novel transmission bearing bore end seal structure of claim 1, wherein: the O-shaped sealing ring (5) is respectively clung to the shell (7), the bearing and the rigid sealing cover (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320898404.1U CN219529781U (en) | 2023-04-20 | 2023-04-20 | Novel gearbox bearing hole end sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320898404.1U CN219529781U (en) | 2023-04-20 | 2023-04-20 | Novel gearbox bearing hole end sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219529781U true CN219529781U (en) | 2023-08-15 |
Family
ID=87645072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320898404.1U Active CN219529781U (en) | 2023-04-20 | 2023-04-20 | Novel gearbox bearing hole end sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219529781U (en) |
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2023
- 2023-04-20 CN CN202320898404.1U patent/CN219529781U/en active Active
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