CN201310625Y - Novel shaft head seal - Google Patents
Novel shaft head seal Download PDFInfo
- Publication number
- CN201310625Y CN201310625Y CNU2008202047271U CN200820204727U CN201310625Y CN 201310625 Y CN201310625 Y CN 201310625Y CN U2008202047271 U CNU2008202047271 U CN U2008202047271U CN 200820204727 U CN200820204727 U CN 200820204727U CN 201310625 Y CN201310625 Y CN 201310625Y
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- rotating shaft
- seal ring
- static
- dynamic
- 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 - Lifetime
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- Sealing Devices (AREA)
Abstract
The utility model relates to a novel shaft head seal. The prior shaft head seals have the defects of easily broken, damaged and worn dynamic and static contact surface. The novel shaft head seal comprises a rotating shaft and a casing and is characterized in that a dynamic sealing ring and a static sealing ring are arranged on the rotating shaft, wherein the dynamic sealing ring is fixed on the rotating shaft and rotates along with the rotating shaft; a spring is arranged between the static sealing ring and the casing and can move axially along the rotating shaft, the opposite end surfaces of the dynamic sealing ring and the static sealing ring are in tight contact under the action of the spring, the dynamic sealing ring and the static sealing ring are made of solid abrasion resistant material, and the contact surface thereof is smoothened. For optimization, the dynamic sealing ring and the static sealing ring adopt tungsten steel sealing rings. The novel shaft head seal has the advantages of simple structure as well as solidness and durableness, so as to be used especially for concrete mixers.
Description
Technical field
The utility model relates to a kind of new-type spindle nose sealing.
Background technique
Existing spindle nose seals frangible, the rapid wear of dynamic and static surface of contact, and is not wear-resisting.
The model utility content
The technical problems to be solved in the utility model is the above-mentioned defective that how to overcome existing spindle nose sealing, and a kind of new-type spindle nose sealing is provided.
For solving the problems of the technologies described above, this new-type spindle nose sealing comprises rotating shaft and shell, and it is characterized in that: described rotating shaft is provided with rotary packing ring and stationary seal ring, and wherein rotary packing ring is fixed in the rotating shaft, rotates with rotating shaft; Be provided with spring between stationary seal ring and the shell, and can be along the moving axially of rotating shaft, under the effect of spring, the opposing end surface of rotary packing ring, stationary seal ring closely contacts, and rotary packing ring, stationary seal ring are made by firm high-abrasive material, and its surface of contact is made smooth treatment.So design, rotary packing ring, stationary seal ring are not fragile, have effectively prolonged life of equipment.
As optimization, rotary packing ring, stationary seal ring are the wolfram steel seal ring.So design, ceramic-seal ring commonly used is firmer, non-friable.
This new-type spindle nose sealing has simple in structure, robust advantage, is particularly suitable for concrete mixer and uses.
Description of drawings
Below in conjunction with accompanying drawing this new-type spindle nose sealing is described further:
Fig. 1 is that this new-type spindle nose seal shaft is to cross-sectional view.
Among the figure: 1 is that rotating shaft, 2 is that shell, 3 is that rotary packing ring, 4 is that stationary seal ring, 5 is that spring, 6 is that bearing, 7 is that seal ring activity mat, 8 seal ring fixed bolsters, 9 are guide finger.
Embodiment
Mode of execution one: as shown in Figure 1, this new-type spindle nose sealing comprises rotating shaft 1 and shell 2, and it is characterized in that: described rotating shaft 1 is provided with rotary packing ring 3 and stationary seal ring 4, and wherein rotary packing ring 3 is fixed in the rotating shaft 1, rotates with rotating shaft 1; Be provided with spring 5 between stationary seal ring 4 and the shell 2, and can be along the moving axially of rotating shaft 1, under the effect of spring 5, the opposing end surface of rotary packing ring 3, stationary seal ring 4 closely contacts, rotary packing ring 3, stationary seal ring 4 are the wolfram steel seal ring, and firm wear-resisting, its surface of contact is made smooth treatment.
Claims (2)
1, a kind of new-type spindle nose sealing comprises rotating shaft and shell, and it is characterized in that: described rotating shaft is provided with rotary packing ring and stationary seal ring, and wherein rotary packing ring is fixed in the rotating shaft, rotates with rotating shaft; Be provided with spring between stationary seal ring and the shell, and can be along the moving axially of rotating shaft, under the effect of spring, the opposing end surface of rotary packing ring, stationary seal ring closely contacts, and rotary packing ring, stationary seal ring are made by firm high-abrasive material, and its surface of contact is made smooth treatment.
2, new-type spindle nose sealing according to claim 1, it is characterized in that: rotary packing ring, stationary seal ring are the wolfram steel seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202047271U CN201310625Y (en) | 2008-12-05 | 2008-12-05 | Novel shaft head seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202047271U CN201310625Y (en) | 2008-12-05 | 2008-12-05 | Novel shaft head seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201310625Y true CN201310625Y (en) | 2009-09-16 |
Family
ID=41107878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202047271U Expired - Lifetime CN201310625Y (en) | 2008-12-05 | 2008-12-05 | Novel shaft head seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201310625Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465369A (en) * | 2013-09-13 | 2013-12-25 | 三一汽车制造有限公司 | Mixing drum sealing device and mixing transport cart |
-
2008
- 2008-12-05 CN CNU2008202047271U patent/CN201310625Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465369A (en) * | 2013-09-13 | 2013-12-25 | 三一汽车制造有限公司 | Mixing drum sealing device and mixing transport cart |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090916 |
|
| CX01 | Expiry of patent term |