CN206257275U - A kind of piston rod sealing system - Google Patents
A kind of piston rod sealing system Download PDFInfo
- Publication number
- CN206257275U CN206257275U CN201621183381.2U CN201621183381U CN206257275U CN 206257275 U CN206257275 U CN 206257275U CN 201621183381 U CN201621183381 U CN 201621183381U CN 206257275 U CN206257275 U CN 206257275U
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- CN
- China
- Prior art keywords
- piston rod
- cylinder cover
- oil cylinder
- envelope
- spy
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Abstract
The utility model discloses a kind of piston rod sealing system, including：Piston rod, oil cylinder cover, dust ring, guidance tape I, U-shaped circle, this spy's envelope, guidance tape II, it is characterized in that, described oil cylinder cover center is provided with centre bore, piston rod passes through oil cylinder cover centre bore, dust ring, guidance tape I, U-shaped circle, this spy's envelope, guidance tape II are installed on oil cylinder cover center bore inner wall, its this spy's envelope is that outer ring and inner ring are constituted, outer ring cross-section is ellipse, inner ring outside is slope arc transition, inner ring inner side adds C-channel to constitute for inclined-plane, and it is with being combined into interference close-fitting that this spy's envelope is arranged in oil cylinder cover mounting groove with piston rod.The utility model piston rod sealing system, hydraulic cylinder cover thin structure is simple, processing cost, easy installation and removal, the piston rod sealing system life-span, easily manufacture production.
Description
Technical field
The utility model is related to hydraulic jack field, more particularly to a kind of piston rod sealing system.
Background technology
The quality of hydraulic jack is piston rod sealing system, and sealing system is complicated, and oil cylinder cover is thick, high processing costs, batch
Amount processing dimension is difficult to control to.Often there is piston rod band oil after oil cylinder assembling, hydraulic oil leakage is parked for a long time, hydraulic pressure can be caused
The waste of oil and the pollution of space enrironment, leakage can cause hydraulic jack to be unable to the power that output cylinder is required in itself, can when serious
Unsafe factor can be caused.
The content of the invention
The purpose of the utility model is：Overcome the deficiencies in the prior art, it is proposed that a kind of piston rod sealing system.It is special with this
The characteristic of seal structure coordinates U-shaped circle effectively to reach the sealing of piston, mixes dust ring and two guidance tapes, has reached oil cylinder cover
The thin good sealing effect of simple structure cylinder cap simultaneously saves cylinder space, reduces material cost, easy processing, easy installation and removal,
This piston rod sealing system is adapted to the oil cylinder of various high-pressure and low-pressure power requirements.
To realize the purpose of this utility model, employ following technical scheme and be achieved：The utility model by piston rod,
Oil cylinder cover, dust ring, guidance tape I, U-shaped circle, this spy's envelope, guidance tape II, it is characterised in that during described oil cylinder cover center is provided with
Heart hole, piston rod passes through oil cylinder cover centre bore, and dust ring mounting groove, guidance tape I peaces are sequentially provided with oil cylinder cover center bore inner wall
Tankage, U-shaped circle mounting groove, this spy envelope mounting groove, guidance tape II mounting grooves, be provided with oil cylinder cover center bore inner wall dust ring,
Guidance tape I, U-shaped circle, this spy's envelope guidance tape II.
Described this spy's envelope is that outer ring and inner ring are constituted, and outer ring cross-section is ellipse, and inner ring outside is slope arc transition, interior
Circle inner side adds C-channel to constitute for inclined-plane, and it is with being combined into interference close-fitting that this spy's envelope is arranged in oil cylinder cover mounting groove with piston rod.
Compared with prior art, the beneficial effects of the utility model are：The characteristic of this special seal structure is inner ring inner side C-shaped
Groove produces outside deformation in oil pressure high, causes inner ring medial slope to increase with plunger rod contacts area, and oil pressure gets over large deformation
Bigger, this spy's envelope inner ring medial slope is more with plunger rod contacts area, and piston rod stretches out, and attachment fluid on the piston rod is most
Few, a small amount of fluid seals the leakage for effectively reducing fluid, the stop that hydraulic oil is sealed by this spy by U-shaped circle again on piston rod
After will not produce impact to U-shaped circle, extend the service life of U-shaped circle, outermost is provided with dust ring and effectively blocks dust and different
Thing is brought into oil cylinder when piston rod is returned.
Brief description of the drawings
Fig. 1 is to be provided with piston rod sealing system structure chart of the present utility model
Fig. 2 is this special sealed knot composition
Figure number explanation：1. piston rod；2. oil cylinder cover；3. dust ring；4. guidance tape I；5.U type circles；6. this spy seals；7.
Guidance tape II.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is described in further detail to the present invention.
Referring to the drawings, the present invention discloses a kind of piston rod sealing system, including：Piston rod 1, oil cylinder cover 2, dust ring 3, lead
To band I4, U-shaped circle 5, this spy's envelope 6, guidance tape II7, it is characterised in that the described center of oil cylinder cover 2 is provided with centre bore, piston rod
1 passes through oil cylinder cover centre bore, and the mounting groove of dust ring 3, guidance tape I4 mounting grooves, U-shaped is sequentially provided with the center bore inner wall of oil cylinder cover 2
5 mounting grooves, this 6 mounting grooves of spy's envelope, guidance tape II7 mounting grooves are enclosed, dust ring 3 is installed on the center bore inner wall of oil cylinder cover 2, is oriented to
Band I4, U-shaped circle 5, this spy's envelope 6, guidance tape II7.
Described this spy's envelope 6 is that outer ring and inner ring are constituted, and outer ring cross-section is ellipse, and inner ring outside is slope arc transition,
Inner ring inner side adds C-channel to constitute for inclined-plane, and it is tight with interference is combined into that this spy's envelope 6 is arranged in the mounting groove of oil cylinder cover 2 with piston rod 1
Match somebody with somebody.
Using the utility model technology, hydraulic cylinder cover is thin, and processing cost is low, easy installation and removal, this special seal structure
Characteristic coordinate U-shaped circle effectively to reach the sealing of piston, mix dust ring and two guidance tapes, hydraulic oil is by this spy's envelope
Impact will not being produced to U-shaped circle, extending the service life of U-shaped circle, outermost is provided with dust ring and effectively blocks dust after stop
And foreign matter is brought into oil cylinder when piston rod is returned, the piston rod sealing system life-span.
Described above is not that, to limitation of the present utility model, the utility model is also not limited to the example above, this technology
In essential scope of the present utility model, change, remodeling, addition or the replacement made should all belong to the those of ordinary skill in field
In protection domain of the present utility model.
Claims (2)
1. a kind of piston rod sealing system, including：Piston rod (1), oil cylinder cover (2), dust ring (3), guidance tape I (4), U-shaped circle
(5), this spy's envelope (6), guidance tape II (7), it is characterised in that described oil cylinder cover (2) center is provided with centre bore, piston rod (1)
Through oil cylinder cover centre bore, dust ring (3) mounting groove, guidance tape I (4) are sequentially provided with oil cylinder cover (2) center bore inner wall and are installed
Groove, U-shaped circle (5) mounting groove, this spy's envelope (6) mounting groove, guidance tape II (7) mounting groove, install on oil cylinder cover (2) center bore inner wall
There are dust ring (3), guidance tape I (4), U-shaped circle (5), this spy's envelope (6), guidance tape II (7).
2. a kind of piston rod sealing system according to claim 1, it is characterised in that described this spy's envelope (6) is outer ring and interior
Circle composition, outer ring cross-section is ellipse, and inner ring outside is slope arc transition, and inner ring inner side adds C-channel to constitute for inclined-plane, Si Te
Envelope (6) is with being combined into interference close-fitting with piston rod (1) in oil cylinder cover (2) mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621183381.2U CN206257275U (en) | 2016-10-28 | 2016-10-28 | A kind of piston rod sealing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621183381.2U CN206257275U (en) | 2016-10-28 | 2016-10-28 | A kind of piston rod sealing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206257275U true CN206257275U (en) | 2017-06-16 |
Family
ID=59024270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621183381.2U Active CN206257275U (en) | 2016-10-28 | 2016-10-28 | A kind of piston rod sealing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206257275U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107537965A (en) * | 2017-09-05 | 2018-01-05 | 南京国际船舶设备配件有限公司 | Slider of oil press backhaul cylinder component is used in the production of ship use intermediate speed machine air valve die-forging forming |
| CN114135295A (en) * | 2021-11-15 | 2022-03-04 | 中铁工程装备集团(天津)有限公司 | Multifunctional karst cave detection equipment of shield machine and working method thereof |
-
2016
- 2016-10-28 CN CN201621183381.2U patent/CN206257275U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107537965A (en) * | 2017-09-05 | 2018-01-05 | 南京国际船舶设备配件有限公司 | Slider of oil press backhaul cylinder component is used in the production of ship use intermediate speed machine air valve die-forging forming |
| CN114135295A (en) * | 2021-11-15 | 2022-03-04 | 中铁工程装备集团(天津)有限公司 | Multifunctional karst cave detection equipment of shield machine and working method thereof |
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| Date | Code | Title | Description |
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| GR01 | Patent grant |