CN202732955U - Sealing device of air cylinder - Google Patents
Sealing device of air cylinder Download PDFInfo
- Publication number
- CN202732955U CN202732955U CN 201220400387 CN201220400387U CN202732955U CN 202732955 U CN202732955 U CN 202732955U CN 201220400387 CN201220400387 CN 201220400387 CN 201220400387 U CN201220400387 U CN 201220400387U CN 202732955 U CN202732955 U CN 202732955U
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- CN
- China
- Prior art keywords
- sealing
- air cylinder
- cylinder
- piece
- sealing piece
- 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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- Actuator (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model relates to a sealing device of an air cylinder. The sealing device of the air cylinder is particularly suitable for an air cylinder of a mold unloading mechanism of a centrifugal nodular cast iron pipe core machine. According to the sealing device of the air cylinder, the air cylinder is fixed on an air cylinder seat, a piston rod is arranged inside the air cylinder, a first sealing piece, a second sealing piece and a third piece are sequentially fixed on an air cylinder left end wall where the piston rod extends leftwards out of the air cylinder from right to left, a first sealing ring is arranged on the left end wall of the first sealing piece, a second sealing ring is arranged on the inner hole wall of the second sealing piece, a third sealing ring is arranged on the inner hole wall of the third sealing piece, the first sealing piece and the second sealing piece are fixed on the air cylinder seat through bolts, and the third sealing piece is fixed on the second sealing piece through a bolt. The sealing device of the air cylinder is compact in structure, good in sealing effect, and long in service life.
Description
Technical field
The utility model relates to a kind of cylinder seal device, and the cylinder that is particularly suitable for centrifugal ductile cast iron pipes core machine die opening mechanism uses.
Background technique
The cylinder seal performance of centrifugal ductile cast iron pipes core machine die opening mechanism is poor, Sealing, cylinder bar serious wear, and the life-span only had about 15 days.Often change the long impact of holding time and produce, spare parts consumption is large in addition, and cost is high.
Summary of the invention
In order to overcome the shortcoming of prior art, this utility model provides a kind of cylinder seal device, its compact structure, good sealing effect, long service life.
The technical scheme in the invention for solving the technical problem is: fixing cylinder on the cylinder block, piston rod is housed in the cylinder, on the cylinder left end wall that piston rod stretches out left in the cylinder, fix successively first from right to left, second, the 3rd Sealing, on the left end wall of described the first Sealing the first seal ring is arranged, the second seal ring is arranged on the inner hole wall of described the second Sealing, the 3rd seal ring is arranged on the inner hole wall of described the 3rd Sealing, described first, the second Sealing is bolted on the cylinder block, and described the 3rd Sealing is bolted on the second Sealing.
Owing to adopt multi-stage sealedly, make cylinder interior obtain good protection, the wearing and tearing of sealing gasket, piston rod obviously to be reduced, the life-span of cylinder has former less than to be increased to 60 days in 15 days, and the Repair cycle significantly reduces, and expense reduces by 80%.
Description of drawings
Below in conjunction with drawings and Examples this utility model is further specified.
Accompanying drawing is the utility model partial sectional view.
Embodiment
As shown in drawings, fixing cylinder 1 on the cylinder block 2, piston rod 11 is housed in the cylinder 1, on the cylinder 1 left end wall that piston rod 11 stretches out left in the cylinder 1, fix successively first from right to left, second, the 3rd Sealing 3,6,8, the first seal ring 4 is arranged on the left end wall of described the first Sealing 3, the second seal ring 7 is arranged on the inner hole wall of described the second Sealing 6, the 3rd seal ring 9 is arranged on the inner hole wall of described the 3rd Sealing 8, described first, the second Sealing 3,6 are fixed on the cylinder block 2 by bolt 5, and described the 3rd Sealing 8 is fixed on the second Sealing 6 by bolt 10.
The seal ring of described cylinder 1 internal piston bar 11 changes two YX type circles into by original O type circle.
Claims (2)
1. cylinder seal device, the upper fixedly cylinder (1) of cylinder block (2), piston rod (11) is housed in the cylinder (1), it is characterized in that: on cylinder (1) the left end wall that piston rod (11) stretches out left in the cylinder (1), fix successively first from right to left, second, the 3rd Sealing (3,6,8), the first seal ring (4) is arranged on the left end wall of described the first Sealing (3), the second seal ring (7) is arranged on the inner hole wall of described the second Sealing (6), the 3rd seal ring (9) is arranged on the inner hole wall of described the 3rd Sealing (8), described first, the second Sealing (3,6) be fixed on the cylinder block (2) by bolt (5), described the 3rd Sealing (8) is fixed on the second Sealing (6) by bolt (10).
2. cylinder seal device according to claim 1 is characterized in that: the seal ring of described cylinder (1) internal piston bar (11) is two YX type circles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400387 CN202732955U (en) | 2012-08-13 | 2012-08-13 | Sealing device of air cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400387 CN202732955U (en) | 2012-08-13 | 2012-08-13 | Sealing device of air cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202732955U true CN202732955U (en) | 2013-02-13 |
Family
ID=47658656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220400387 Expired - Fee Related CN202732955U (en) | 2012-08-13 | 2012-08-13 | Sealing device of air cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202732955U (en) |
-
2012
- 2012-08-13 CN CN 201220400387 patent/CN202732955U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20130213 Termination date: 20140813 |
|
| EXPY | Termination of patent right or utility model |