CN204592299U - Supercharging shaft sealer in large scale - Google Patents
Supercharging shaft sealer in large scale Download PDFInfo
- Publication number
- CN204592299U CN204592299U CN201520039139.7U CN201520039139U CN204592299U CN 204592299 U CN204592299 U CN 204592299U CN 201520039139 U CN201520039139 U CN 201520039139U CN 204592299 U CN204592299 U CN 204592299U
- Authority
- CN
- China
- Prior art keywords
- sealing element
- type expansion
- expansion sealing
- large scale
- screw thread
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses supercharging shaft sealer in a kind of large scale, in rotation axle head sealed department position, M type expansion sealing element is installed, U-shaped sealing sheath is set with outside M type expansion sealing element, M type expansion sealing element is that elastic material is made, M type expansion sealing element, U-shaped sealing sheath sidewall is provided with screw thread suction tude, source of compressed air is communicated with outside screw thread suction tude, the outer side pressure of U-shaped sealing sheath is equipped with pressing plate, the utility model thoroughly solves the bias of axle, the leakage that wearing and tearing produce, especially large-sized axle is suitable for, applied widely, install simple, non-maintaining, realize low-cost high-efficiency.
Description
Technical field
The utility model relates to shaft member field of sealing technology, specifically belongs to supercharging shaft sealer in large scale.
Background technique
Large scale (diameter more than 2000 millimeters) shaft seal is a difficult problem for machine building industry, the product that Ye Shi China first develops in NPD projects policy for 2011.The sealing means of current employing is material filling type.Material filling type sealing is tamped in the groove of rotating shaft mainly through packing, and groove first processes, and compresses with gland, by gland, packing is exerted pressure, packing after pressurized produces radial deformation, reaches the object of holding running shaft tightly, thus stops medium to leak along axle.
In practical operation, because of packing poor flexibility, elastic compensating surplus is little, and the axle simultaneously rotated contacts with packing, and axle rubs with packing phase mutual, and wearing and tearing produce gap, thus have sealed medium along axle and packing slot leakage, affect device security and effectively run.
Model utility content
The purpose of this utility model is to provide supercharging shaft sealer in a kind of large scale, and this seal arrangement thoroughly solves the bias of axle, the leakage that wearing and tearing produce, and is especially suitable for large-sized axle, applied widely, installs simple, non-maintaining, realizes low-cost high-efficiency.
The technical solution of the utility model is as follows:
Supercharging shaft sealer in a kind of large scale, in rotation axle head sealed department position, M type expansion sealing element is installed, U-shaped sealing sheath is set with outside M type expansion sealing element, M type expansion sealing element is that elastic material is made, M type expansion sealing element, U-shaped sealing sheath sidewall are provided with screw thread suction tude, be communicated with source of compressed air outside screw thread suction tude, the outer side pressure of U-shaped sealing sheath is equipped with pressing plate, is bolted installation between pressing plate and frame; Between M type expansion sealing element and running shaft, fitting surface is wavy.
Described M type expansion sealing element is tubular structure, and material is determined according to the physical and chemical performance parameter of sealed medium.
Described screw thread suction tude and M type expansion sealing element are adhesively fixed.
By the suction tude of M type expansion sealing element during utility model works, connect pressurized air.Compressed air pressure is that 0.06MPa(can adjust according to the size of sealed medium pressure), if on-the-spot compressed air pressure is regulated by reduction valve when being greater than 0.06MPa, expand after M type expansion sealing element passes into air, three limit by U-shaped sealing sheath, one side is by running shaft, only likely produce potential deformation with axle one side, thus flexibility is formed to axle hold tightly, the bias that large-size axis parts produces can be made up, can realize axle again gap-free sealed, the twice of U-shaped sealing sheath also can play seal action with the tactile limit that is coupling simultaneously, U-shaped sealing sheath, M type expansion sealing element is combined into traditional Mi Gong sealing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
See accompanying drawing, supercharging shaft sealer in a kind of large scale, at running shaft 6 end sealing position, M type expansion sealing element 1 is installed, U-shaped sealing sheath 2 is set with outside M type expansion sealing element 1, M type expansion sealing element 1 is made for elastic material, M type expansion sealing element 1, U-shaped sealing sheath 2 sidewall is provided with screw thread suction tude 3, is communicated with source of compressed air outside screw thread suction tude 3, the outer side pressure of U-shaped sealing sheath 2 is equipped with pressing plate 4, is fixedly mounted between pressing plate 4 and frame by bolt 5; Between M type expansion sealing element 1 and running shaft 6, fitting surface 7 is in wavy, and M type expansion sealing element 1 is tubular structure, and material is determined according to the physical and chemical performance parameter of sealed medium, and screw thread suction tude and M type expansion sealing element are adhesively fixed.
Claims (3)
1. supercharging shaft sealer in a large scale, it is characterized in that, in rotation axle head sealed department position, M type expansion sealing element is installed, U-shaped sealing sheath is set with outside M type expansion sealing element, M type expansion sealing element is that elastic material is made, and M type expansion sealing element, U-shaped sealing sheath sidewall is provided with screw thread suction tude, is communicated with source of compressed air outside screw thread suction tude, the outer side pressure of U-shaped sealing sheath is equipped with pressing plate, is bolted installation between pressing plate and frame; Between M type expansion sealing element and running shaft, fitting surface is wavy.
2. supercharging shaft sealer in large scale according to claim 1, is characterized in that, described M type expansion sealing element is tubular structure, and material is determined according to the physical and chemical performance parameter of sealed medium.
3. supercharging shaft sealer in large scale according to claim 1, is characterized in that, described screw thread suction tude and M type expansion sealing element are adhesively fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520039139.7U CN204592299U (en) | 2015-01-20 | 2015-01-20 | Supercharging shaft sealer in large scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520039139.7U CN204592299U (en) | 2015-01-20 | 2015-01-20 | Supercharging shaft sealer in large scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204592299U true CN204592299U (en) | 2015-08-26 |
Family
ID=53928452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520039139.7U Expired - Fee Related CN204592299U (en) | 2015-01-20 | 2015-01-20 | Supercharging shaft sealer in large scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204592299U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565385A (en) * | 2015-01-20 | 2015-04-29 | 马鞍山市荣亿密封材料有限责任公司 | Large-sized internal supercharging shaft sealing device |
-
2015
- 2015-01-20 CN CN201520039139.7U patent/CN204592299U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565385A (en) * | 2015-01-20 | 2015-04-29 | 马鞍山市荣亿密封材料有限责任公司 | Large-sized internal supercharging shaft sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20180120 |