CN201277219Y - Multi-stage dust sealing hydraulic oil cylinder - Google Patents
Multi-stage dust sealing hydraulic oil cylinder Download PDFInfo
- Publication number
- CN201277219Y CN201277219Y CNU2008201730730U CN200820173073U CN201277219Y CN 201277219 Y CN201277219 Y CN 201277219Y CN U2008201730730 U CNU2008201730730 U CN U2008201730730U CN 200820173073 U CN200820173073 U CN 200820173073U CN 201277219 Y CN201277219 Y CN 201277219Y
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- CN
- China
- Prior art keywords
- cylinder
- cylindrical shape
- piston rod
- shape plug
- lip
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- Expired - Fee Related
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Abstract
The utility model discloses a multi-stage dust-proof sealing hydraulic cylinder, which is formed by a cylinder barrel (1), a cylinder head (2), a cylinder seat (3), a piston (4) and a piston rod (5), and is characterized in that a cylindrical plug (11) is arranged in the port of the cylinder barrel (1), and a dust-proof ring (8), an x y d double polyurethane lip-shaped sealing ring (9) and an O-shaped sealing ring (10) are arranged on the inner side wall and the outer side wall of the cylindrical plug (11). As the cylindrical plug is arranged in the port of the cylinder barrel, and sealing devices are arranged on the inner wall and the outer wall of the cylindrical plug, the multi-stage dust-proof sealing hydraulic cylinder increases the sealing performance and the guiding performance between the piston rod and the cylindrical plug, can obstruct particles such as oil stains and the like outside the cylindrical plug, thereby lightening the abrasion of the piston rod, prolonging the service life, and being widely applied in hydraulic cylinders.
Description
Technical field
The utility model relates to a kind of improvement of hydraulic jack, a kind of specifically multistage dust sealing hydraulic jack.
Background technique
Hydraulic jack is a kind of vitals in the mechanical field extensive use, comprise cylinder barrel, cylinder cap, the cylinder seat, piston, piston rod, safety cover constitutes, on the cylinder seat, be provided with the oily runner of turnover down, on piston rod, be provided with enterprising fuel-displaced runner, safety cover is enclosed within the outside of cylinder barrel, at the prosopyle of the safety cover konisphere of setting up defences along the inboard, the rear end of safety cover is fixed on the upper end of piston rod, dust ring is used for stopping extraneous dust, the dustproof effect of dust ring is that the elastic force by dust ring combines closely dust ring and cylinder barrel to realize, piston rod is in to-and-fro motion, and safety cover is to-and-fro motion also, and dust ring is just to the dust attached to the cylinder barrel outer surface, moisture films etc. are scraped crowded, with dust, dirts such as water stop, but the deficiency that exists is at present: in long-term use, some small particles can damage the sealing effect of dust ring, enter in the safety cover, on piston rod, compare under the condition of severe in external environment, can make the piston rod plucking, excessive wear, distortion, leakage of oil; Piston rod location, steering capability reduce.
Summary of the invention
The purpose of this utility model is the multistage dust sealing hydraulic jack that a kind of good dustproof effect, long service life is provided, can effectively avoids piston rod to sustain damage.
For reaching above purpose, the technological scheme that the utility model adopted is: this multistage dust sealing hydraulic jack, by cylinder barrel, cylinder cap, the cylinder seat, piston, piston rod constitutes, cylinder seat and cylinder barrel are welded as a whole, on the cylinder seat, be provided with the oily runner of turnover down, on piston rod, be provided with enterprising fuel-displaced runner, it is characterized in that in the mouth of cylinder barrel, being provided with cylindrical shape plug shape, the length of cylindrical shape plug is 15-20cm, on the madial wall of cylindrical shape plug side by side be provided with dust ring and the lip-type packing of xyd double focusing ammoniacum, dust ring and the lip-type packing of xyd double focusing ammoniacum all are enclosed within on the piston rod.The utility model is also implemented by following measure: the lip-type packing of described xyd double focusing ammoniacum is established 2, dust ring, the lip-type packing of xyd double focusing ammoniacum all are stuck in the circular groove on the cylindrical shape plug madial wall, on the outer side wall of cylindrical shape plug, establish two circular grooves, all snap in " O " shape seal ring, outer end at the cylindrical shape plug is established cylinder cap again, the mouth that cylinder cap is rotated in cylinder barrel is gone up fixing, thereby makes piston, piston rod reciprocating under the state of sealing fully; Described dust ring, " O " shape seal ring are corrosion resistant rubber material and make, the lip-type packing of described xyd double focusing ammoniacum is a kind of have good sealing effect, steering capability is good, leadage coefficient is low Sealing, at present, be used for the jaw hydraulic jack, using effect is good.
The beneficial effects of the utility model are: compare with the hydraulic jack of present use, owing in the cylinder mouth, added the cylindrical shape plug, between the inwall of cylindrical shape plug and piston rod, add dust ring and had good sealing effect, steering capability is good, the xyd double focusing ammoniacum lip-type packing that leadage coefficient is low, so, sealability and steering capability between piston rod and the cylindrical shape plug have been improved, can be with the outside of particles such as greasy dirt retaining at the cylindrical shape plug, so alleviated the wearing and tearing of piston rod, simultaneously, owing to also adopted two " O " shape seal rings to seal beyond the Great Wall between wall and the cylinder mouth inwall in cylindrical shape, so also improved the sealability between cylindrical shape plug and the cylinder mouth, prolong working life, improved the task performance of hydraulic jack.
Description of drawings
Fig. 1 is the utility model structure cross-sectional schematic vertically.
Embodiment
Make the utility model with reference to accompanying drawing 1.This multistage dust sealing hydraulic jack, constitute by cylinder barrel 1, cylinder cap 2, cylinder seat 3, piston 4, piston rod 5, cylinder seat 3 is welded as a whole with cylinder barrel 1, on cylinder seat 3, be provided with the oily runner 6 of turnover down, on piston rod 5, be provided with enterprising fuel-displaced runner 7, it is characterized in that in the mouth of cylinder barrel 1, being provided with cylindrical shape plug 11, the length of cylindrical shape plug 11 is 15-20cm, on the madial wall of cylindrical shape plug 11 side by side be provided with dust ring 8 and xyd double focusing ammoniacum lip-type packing 9, dust ring 8 and xyd double focusing ammoniacum lip-type packing 9 all are enclosed within on the piston rod 5.Described xyd double focusing ammoniacum lip-type packing 9 is established 2, dust ring 8, xyd double focusing ammoniacum lip-type packing 9 all are stuck in the circular groove on the madial wall of cylindrical shape plug 11, on the outer side wall of cylindrical shape plug 11, establish two circular grooves, all snap in " O " shape seal ring 10, outer end at cylindrical shape plug 11 is established cylinder cap 2 again, and cylinder cap 2 is rotated in the mouth of cylinder barrel 1 and goes up fixing; Described dust ring 8, " O " shape seal ring 10 are corrosion resistant rubber material and make, and described xyd double focusing ammoniacum lip-type packing 9 is a kind of have good sealing effect, steering capability is good, leadage coefficient is low Sealings.
Claims (2)
1, a kind of multistage dust sealing hydraulic jack, by cylinder barrel (1), cylinder cap (2), cylinder seat (3), piston (4), piston rod (5) constitutes, cylinder seat (3) is welded as a whole with cylinder barrel (1), on cylinder seat (3), be provided with turnover oily runner (6) down, on piston rod (5), be provided with enterprising fuel-displaced runner (7), it is characterized in that in the mouth of cylinder barrel (1), being provided with cylindrical shape plug (11), the length of cylindrical shape plug (11) is 15-20cm, on the madial wall of cylindrical shape plug (11) side by side be provided with dust ring (8) and xyd double focusing ammoniacum lip-type packing (9), dust ring (8) and xyd double focusing ammoniacum lip-type packing (9) all are enclosed within on the piston rod (5).
2, multistage dust sealing hydraulic jack according to claim 1, it is characterized in that described xyd double focusing ammoniacum lip-type packing (9) establishes 2, dust ring (8), xyd double focusing ammoniacum lip-type packing (9) all are stuck in the circular groove on the madial wall of cylindrical shape plug (11), on the outer side wall of cylindrical shape plug (11), establish two circular grooves, all snap in " O " shape seal ring (10), establish cylinder cap (2) again in the outer end of cylindrical shape plug (11), cylinder cap (2) is rotated in the mouth of cylinder barrel (1) and goes up fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201730730U CN201277219Y (en) | 2008-10-17 | 2008-10-17 | Multi-stage dust sealing hydraulic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201730730U CN201277219Y (en) | 2008-10-17 | 2008-10-17 | Multi-stage dust sealing hydraulic oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201277219Y true CN201277219Y (en) | 2009-07-22 |
Family
ID=40894805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201730730U Expired - Fee Related CN201277219Y (en) | 2008-10-17 | 2008-10-17 | Multi-stage dust sealing hydraulic oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201277219Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536953A (en) * | 2012-04-11 | 2012-07-04 | 海卓泰克液压技术（苏州）有限公司 | Dual-sealing device of oil cylinder |
| CN102588608A (en) * | 2011-01-14 | 2012-07-18 | 北京纽希液压技术研究所 | Compound sealing device |
| CN106089849A (en) * | 2016-08-25 | 2016-11-09 | 广州本图机械有限公司 | A kind of Multi-stage lifting oil cylinder of stabilized structure |
| CN108518382A (en) * | 2018-06-19 | 2018-09-11 | 天津隆迪伟业液压设备有限公司 | A kind of hydraulic cylinder and assemble method |
-
2008
- 2008-10-17 CN CNU2008201730730U patent/CN201277219Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588608A (en) * | 2011-01-14 | 2012-07-18 | 北京纽希液压技术研究所 | Compound sealing device |
| CN102536953A (en) * | 2012-04-11 | 2012-07-04 | 海卓泰克液压技术（苏州）有限公司 | Dual-sealing device of oil cylinder |
| CN106089849A (en) * | 2016-08-25 | 2016-11-09 | 广州本图机械有限公司 | A kind of Multi-stage lifting oil cylinder of stabilized structure |
| CN108518382A (en) * | 2018-06-19 | 2018-09-11 | 天津隆迪伟业液压设备有限公司 | A kind of hydraulic cylinder and assemble method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20091117 |