CN214888861U - Sealing structure of rotating shaft - Google Patents
Sealing structure of rotating shaft Download PDFInfo
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- CN214888861U CN214888861U CN202120917535.0U CN202120917535U CN214888861U CN 214888861 U CN214888861 U CN 214888861U CN 202120917535 U CN202120917535 U CN 202120917535U CN 214888861 U CN214888861 U CN 214888861U
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- rotating shaft
- waterproof cover
- cover plate
- shaft
- shaft hole
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Abstract
The application discloses rotation axis seal structure includes: a partition and a rotating shaft passing through the partition; one end of the rotating shaft is used for power input, and the other end of the rotating shaft is used for power output; the partition plate is arranged on one side of the rotating shaft for outputting power, a lower waterproof cover is arranged on the side, where the rotating shaft outputs power, of the partition plate, the bottom end face of the lower waterproof cover is in sealing butt joint with the partition plate, the lower waterproof cover is provided with a first shaft hole matched with the diameter of the rotating shaft, and the first shaft hole is in sliding seal with the rotating shaft; one side of the rotating shaft for outputting power is connected with an upper waterproof cover plate, the upper waterproof cover plate partially or completely shields the lower waterproof cover plate, a second shaft hole is formed in the upper waterproof cover plate, the rotating shaft sequentially penetrates through the partition plate, the first shaft hole and the second shaft hole, and the second shaft hole is tightly matched with the rotating shaft and can synchronously rotate with the rotating shaft. The application provides a technical scheme, it is equipped with the waterproof apron of going up that rotates together with the rotation axis, has realized better sealed effect through setting up waterproof apron.
Description
Technical Field
The application relates to the field of machining, in particular to a sealing structure of a rotating shaft.
Background
If the power side and the output side of the rotating shaft are in different working environments, generally speaking, a sealing structure needs to be configured on the rotating shaft, most of the traditional sealing structures adopt a contact type sealing structure such as a sealing ring for sealing, and in some special occasions, for example, grinding and polishing equipment, the sealing structure of the rotating shaft needs to be higher.
SUMMERY OF THE UTILITY MODEL
For overcoming the problem that exists among the correlation technique, this application provides a rotation axis seal structure, this rotation axis seal structure, it is equipped with the waterproof apron of going up that rotates together with the rotation axis, has realized better sealed effect through setting up waterproof apron.
In order to solve the technical problem, the technical scheme adopted by the application is as follows:
there is provided a rotary shaft sealing structure including: a partition and a rotating shaft passing through the partition; one end of the rotating shaft is used for power input, and the other end of the rotating shaft is used for power output; the partition plate is arranged on one side of the rotating shaft for outputting power, a lower waterproof cover is arranged on the side, where the rotating shaft outputs power, of the partition plate, the bottom end face of the lower waterproof cover is in sealing butt joint with the partition plate, the lower waterproof cover is provided with a first shaft hole matched with the diameter of the rotating shaft, and the first shaft hole is in sliding seal with the rotating shaft; one side of the rotating shaft for outputting power is connected with an upper waterproof cover plate, the upper waterproof cover plate partially or completely shields the lower waterproof cover plate, a second shaft hole is formed in the upper waterproof cover plate, the rotating shaft sequentially penetrates through the partition plate, the first shaft hole and the second shaft hole, and the second shaft hole is tightly matched with the rotating shaft and can synchronously rotate with the rotating shaft.
Preferably, the bottom terminal surface of waterproof apron is equipped with the first recess that encircles first shaft hole down, disposes first sealing washer in the first recess.
Preferably, the lower waterproof cover plate is provided with a mounting hole used for being connected with the partition plate, the partition plate is provided with a threaded hole corresponding to the mounting hole, the lower waterproof cover plate is fixed on the partition plate through a matching screw, and the mounting hole is formed in the outer side of the first groove.
Preferably, the up end of waterproof apron is equipped with the first boss around first shaft hole down, and the second recess around first shaft hole is seted up to the up end of first boss, disposes the second sealing washer in the second recess, and second sealing washer and rotation axis sliding seal.
Preferably, the upper end face of the lower waterproof cover plate is provided with an anti-seepage cone, one side, facing the lower waterproof cover plate, of the upper waterproof cover plate is provided with an upper cover plate cavity, and the shape of the upper cover plate cavity is matched with the shape of the upper end of the lower waterproof cover plate.
Preferably, a second boss is arranged in the cavity of the upper cover plate and abuts against the upper end of the second sealing ring.
Preferably, the inner side wall of the second shaft hole is provided with a third groove, and a third sealing ring is arranged in the third groove.
The technical scheme provided by the application can comprise the following beneficial effects: there is provided a rotary shaft sealing structure including: a partition and a rotating shaft passing through the partition; one end of the rotating shaft is used for power input, and the other end of the rotating shaft is used for power output; the partition plate is arranged on one side of the rotating shaft for outputting power, a lower waterproof cover is arranged on the side, where the rotating shaft outputs power, of the partition plate, the bottom end face of the lower waterproof cover is in sealing butt joint with the partition plate, the lower waterproof cover is provided with a first shaft hole matched with the diameter of the rotating shaft, and the first shaft hole is in sliding seal with the rotating shaft; one side of the rotating shaft for outputting power is connected with an upper waterproof cover plate, the upper waterproof cover plate partially or completely shields the lower waterproof cover plate, a second shaft hole is formed in the upper waterproof cover plate, the rotating shaft sequentially penetrates through the partition plate, the first shaft hole and the second shaft hole, and the second shaft hole is tightly matched with the rotating shaft and can synchronously rotate with the rotating shaft. It is equipped with the waterproof apron of going up that rotates together with the rotation axis, has realized better sealed effect through setting up waterproof apron.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application, as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.
Fig. 1 is a schematic view of the overall structure shown in embodiment 1 of the present application.
Fig. 2 is a schematic side view of the entire structure shown in embodiment 1 of the present application.
Fig. 3 is a schematic cross-sectional view at AA in fig. 2 shown in example 1 of the present application.
Fig. 4 is an enlarged schematic view of B in fig. 3 shown in embodiment 1 of the present application.
Description of the reference numerals
| Numbering | Name (R) | Numbering | Name (R) |
| 1 | |
4 | Upper |
| 2 | |
41 | |
| 3 | Lower |
42 | |
| 31 | |
43 | Concave cavity of |
| 32 | The |
44 | |
| 33 | |
51 | |
| 34 | |
52 | |
| 35 | Seepage- |
53 | Third seal ring |
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The present application will be described in further detail below with reference to the accompanying drawings by way of specific embodiments.
Example 1
Referring to fig. 1 to 4, a sealing structure of a rotary shaft 1 includes: a partition 2 and a rotating shaft 1 passing through the partition 2; the application shows that the sealing structure of the rotating shaft 1 is used for the rotary sealing occasion of the output shaft of the speed reducer, the output main shaft of the speed reducer is used as the rotating shaft 1, the mounting plate of the speed reducer is used as the partition plate 2, one end of the rotating shaft 1 is used for power input, and the other end of the rotating shaft 1 is used for power output; the partition board 2 is provided with a lower waterproof cover 3 at one side of the rotating shaft 1 for outputting power, the bottom end surface of the lower waterproof cover 3 is in sealing contact with the partition board 2, the lower waterproof cover 3 is provided with a first shaft hole 31 matched with the diameter of the rotating shaft 1, and the first shaft hole 31 is in sliding seal with the rotating shaft 1; one side of the output power of the rotating shaft 1 is connected with an upper waterproof cover plate 4, the upper waterproof cover plate 4 partially or completely shields a lower waterproof cover plate 3, the upper waterproof cover plate 4 is provided with a second shaft hole 41, the rotating shaft 1 sequentially penetrates through the partition plate 2, the first shaft hole 31 and the second shaft hole 41, and the second shaft hole 41 is tightly matched with the rotating shaft 1 and can synchronously rotate with the rotating shaft 1.
In order to realize the sealing between the bottom of the lower waterproof cover 3 and the partition board 2, a first groove 32 surrounding the first shaft hole 31 is arranged on the bottom end surface of the lower waterproof cover 3, and a first sealing ring 51 is arranged in the first groove 32.
Particularly, waterproof cover 3 board passes through the screw fixation with baffle 2 down, and waterproof cover 3 board is equipped with the mounting hole that is used for being connected with baffle 2 down, and baffle 2 is equipped with the screw hole corresponding with the mounting hole, through matching the screw so that waterproof cover 3 board is fixed in baffle 2 down, and in order to prevent the mounting hole infiltration, the mounting hole is seted up in the first recess 32 outside.
In order to realize the sliding sealing connection between the first shaft hole 31 and the rotating shaft 1, the upper end surface of the lower waterproof cover 3 is provided with a first boss 33 surrounding the first shaft hole 31, the upper end surface of the first boss 33 is provided with a second groove 34 surrounding the first shaft hole 31, a second sealing ring 52 is arranged in the second groove 34, and the second sealing ring 52 is in sliding sealing with the rotating shaft 1.
In order to prevent liquid from entering a sliding sealing area along a gap between the upper waterproof cover plate 4 and the lower waterproof cover 3 and effectively prevent the liquid from remaining in a gap between the upper waterproof cover plate 4 and the lower waterproof cover 3, the upper end surface of the lower waterproof cover 3 is provided with an anti-seepage cone 35, an upper cover plate cavity 43 is formed on one side of the upper waterproof cover plate 4 facing the lower waterproof cover 3, and the shape of the upper cover plate cavity 43 is matched with the shape of the upper end of the lower waterproof cover 3.
Meanwhile, in order to prevent the second gasket 52 disposed on the lower waterproof cover 3 from being separated, the second boss 44 is provided in the upper cover plate cavity 43, and the second boss 44 abuts against the upper end of the second gasket 52.
Further, a third groove 42 is formed in the inner wall of the second shaft hole 41, and a third seal ring 53 is disposed in the third groove 42, thereby preventing liquid from penetrating through a gap that may exist between the second shaft hole 41 and the rotary shaft 1.
In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is a more detailed description of the present application in connection with specific embodiments thereof, and it is not intended that the present application be limited to the specific embodiments thereof. It will be apparent to those skilled in the art from this disclosure that many more simple derivations or substitutions can be made without departing from the spirit of the disclosure.
Claims (7)
1. A rotary shaft seal structure characterized by comprising: a partition and a rotating shaft passing through the partition;
one end of the rotating shaft is used for power input, and the other end of the rotating shaft is used for power output;
the partition plate is arranged on one side of the rotating shaft for outputting power, a lower waterproof cover is arranged on the side, where the rotating shaft outputs power, of the partition plate, the bottom end face of the lower waterproof cover is in sealing butt joint with the partition plate, the lower waterproof cover is provided with a first shaft hole matched with the diameter of the rotating shaft, and the first shaft hole is in sliding seal with the rotating shaft;
one side of the rotating shaft for outputting power is connected with an upper waterproof cover plate, the upper waterproof cover plate partially or completely shields the lower waterproof cover plate, a second shaft hole is formed in the upper waterproof cover plate, the rotating shaft sequentially penetrates through the partition plate, the first shaft hole and the second shaft hole, and the second shaft hole is tightly matched with the rotating shaft and can synchronously rotate with the rotating shaft.
2. The rotary shaft sealing structure according to claim 1, wherein the bottom end surface of the lower waterproof cover plate is provided with a first groove surrounding the first shaft hole, and a first seal ring is disposed in the first groove.
3. The rotary shaft sealing structure according to claim 2, wherein the lower waterproof cover plate is provided with mounting holes for connection with the partition plate, the partition plate is provided with threaded holes corresponding to the mounting holes, the lower waterproof cover plate is fixed to the partition plate by means of mating screws, and the mounting holes are opened outside the first grooves.
4. The rotary shaft sealing structure according to claim 1, wherein the upper end surface of the lower waterproof cover plate is provided with a first boss surrounding the first shaft hole, the upper end surface of the first boss is provided with a second groove surrounding the first shaft hole, a second sealing ring is disposed in the second groove, and the second sealing ring is in sliding seal with the rotary shaft.
5. The rotary shaft sealing structure according to claim 4, wherein the upper end surface of the lower waterproof cover plate is provided with an impermeable pyramid part, and a side of the upper waterproof cover plate facing the lower waterproof cover plate is formed with an upper cover plate cavity having a shape matching the outer shape of the upper end of the lower waterproof cover plate.
6. The rotary shaft sealing structure according to claim 5, wherein a second boss is provided in the cavity of the upper cover plate, and the second boss abuts against an upper end of the second seal ring.
7. The rotary shaft sealing structure according to claim 1, wherein a third groove is provided in an inner side wall of the second shaft hole, and a third seal ring is provided in the third groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120917535.0U CN214888861U (en) | 2021-04-29 | 2021-04-29 | Sealing structure of rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120917535.0U CN214888861U (en) | 2021-04-29 | 2021-04-29 | Sealing structure of rotating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214888861U true CN214888861U (en) | 2021-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120917535.0U Active CN214888861U (en) | 2021-04-29 | 2021-04-29 | Sealing structure of rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214888861U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115837981A (en) * | 2023-02-16 | 2023-03-24 | 中国空气动力研究与发展中心空天技术研究所 | Waterproof sealed cabin for cross-medium aircraft |
-
2021
- 2021-04-29 CN CN202120917535.0U patent/CN214888861U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115837981A (en) * | 2023-02-16 | 2023-03-24 | 中国空气动力研究与发展中心空天技术研究所 | Waterproof sealed cabin for cross-medium aircraft |
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