CN105179377B - A kind of sealing piston of hydraulic cylinder device with anti-deformation and storage oil leak ability - Google Patents
A kind of sealing piston of hydraulic cylinder device with anti-deformation and storage oil leak ability Download PDFInfo
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- CN105179377B CN105179377B CN201510602209.XA CN201510602209A CN105179377B CN 105179377 B CN105179377 B CN 105179377B CN 201510602209 A CN201510602209 A CN 201510602209A CN 105179377 B CN105179377 B CN 105179377B
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Abstract
The invention provides a kind of sealing piston of hydraulic cylinder device with anti-deformation and storage oil leak ability, mainly include cylinder barrel, piston, piston rod, U-shaped sealing ring, ladder-shaped sealing ring, U-shaped steel loop and slagging-off ring, piston rod head is provided with the shaft shoulder and external screw thread, and elastic ring, piston, cushion and locking nut are sequentially arranged on piston rod.It is characterized in that U-shaped steel loop prevents U-shaped sealed ring deformation, and U-shaped sealing ring can store up oil leak.The present invention realizes the temporary of oil leak by the U-shaped sealing ring in U-shaped section；Realize reducing U-shaped sealed ring deformation respectively by ladder-shaped sealing ring and U-shaped steel loop and prevent its deformation failure；It is triangle circular arc and slagging-off ring containing large and small groove by section, realization prevents the dregs of fat from entering piston, and temporary oil leak and the dregs of fat.
Description
Technical field
The present invention relates to a kind of sealing piston of hydraulic cylinder device with anti-deformation and storage oil leak ability, more particularly to one kind
The temporary of oil leak is realized by the U-shaped sealing ring in U-shaped section, realizes reducing U-shaped close respectively by ladder-shaped sealing ring and U-shaped steel loop
Seal deforms and prevents its deformation failure, is triangle circular arc and slagging-off ring containing large and small groove by section, and realization prevents the dregs of fat
Into piston, and temporary oil leak and the dregs of fat, belong to the technical research field of hydraulic cylinder sealing.
Background technology
Hydraulic energy is changed into mechanical energy by hydraulic cylinder using the straight reciprocating motion of piston, but is easily existed in use
Problems with, one is seal failure, i.e., hydraulic oil leaks into another chamber through piston by a chamber, and this internal leakage can reduce hydraulic cylinder
Performance quality；Two is the contact surface that the dregs of fat in hydraulic oil easily enter piston and cylinder barrel, and worn piston surface causes piston close
Envelope failure and the service life of reduction piston.
Therefore, the problems such as seal failure that exists in use for existing hydraulic cylinder, the dregs of fat wear and tear, should live from hydraulic cylinder
Considered on the sealing device of plug, designed good airproof performance, a kind of piston sealing device of oil-free sizing damage.
The content of the invention
The problems such as seal failure that the present invention exists for existing hydraulic cylinder in use, the dregs of fat wear and tear, there is provided a kind of
A kind of sealing piston of hydraulic cylinder device with anti-deformation and storage oil leak ability that can effectively solve the above problems.
A kind of sealing piston of hydraulic cylinder device with anti-deformation and storage oil leak ability of the invention uses following technical side
Case：
A kind of sealing piston of hydraulic cylinder device with anti-deformation and storage oil leak ability, mainly including cylinder barrel, piston, piston
Bar, U-shaped sealing ring, ladder-shaped sealing ring, U-shaped steel loop and slagging-off ring, piston rod head are provided with the shaft shoulder and external screw thread, elastic ring, piston,
Cushion and locking nut are sequentially arranged on piston rod；The material of the U-shaped sealing ring be rubber, U-shaped sealing ring be 2 and
On piston side disc, the section of U-shaped sealing ring is U-shape structure, and its hollow depth ish 1, wall thickness isb 1；It is described U-shaped
The material of steel loop is 45 steel, and U-shaped steel loop is arranged on U-shaped sealing ring inner side, and its upper end is away from U-shaped sealing ring upper endh 2Andh 2=h 1/
4, wall thickness isb 2Andb 2=b 1/3；The material of the ladder-shaped sealing ring is rubber, and it is one group of installation that ladder-shaped sealing ring is 4 and 2
On the two ends of U-shaped sealing ring, it is highlyh 3Andh 3=h 1/8；The slagging-off ring is arranged in the forward and backward both ends of the surface of piston, is removed
The section of slag ring is triangle arc structure, and its arc radius isR, slagging-off ring outboard end on be sequentially provided with from inside to outside big groove and
Little groove.
It is U-shaped structure that U-shaped sealing ring is designed as section by the present invention, realizes the temporary of oil leak by this design, i.e.,
When there is micro hydraulic oil to be leaked through U-shaped sealing ring, the hydraulic oil of leakage can be flowed in the inner groovy of U-shaped sealing ring, so that real
Keeping in for existing oil leak, prevents it from being leaked into another chamber through piston.
The present invention installs U-shaped steel loop in U-shaped sealing ring, prevents U-shaped sealed ring deformation from failing by this design, that is, lead to
The high intensity and high rigidity of U-shaped steel loop are crossed, the deformation of U-shaped sealing ring is resisted, its seal failure is prevented；And by U-shaped steel loop highly
It is designed as, less than U-shaped sealing ring, small deformation being produced when this design can make U-shaped sealing ring with piston movement, by subtracting
Lack contact surface to reduce the resistance of motion of piston.
The present invention is respectively mounted ladder-shaped sealing ring on the two ends of U-shaped sealing ring, and U-shaped sealing ring is reduced by this design
Deformation, strengthen piston sealing, i.e., by the interaction of ladder-shaped sealing ring and U-shaped sealing ring, by the compression of U-shaped sealing ring
Deformation energy is consumed in the form of frictional heat energy, reduces the deformation of U-shaped sealing ring.
The present invention will remove the gred ring design for section for triangle circular arc and containing the structure of large and small groove, real by this design
Existing piston movement removes the gred and keeps in oil leak, i.e., by arc structure, on the premise of piston movement resistance is reduced, cylinder barrel can be made again
On the dregs of fat along circular arc flow into inner cavity of cylinder, prevent the dregs of fat from causing fretting wear into the contact surface of piston and cylinder barrel, additionally,
Large and small groove can keep in minute leakage oil and the dregs of fat.
The beneficial effects of the invention are as follows：The temporary of oil leak is realized by the U-shaped sealing ring in U-shaped section；By trapezoidal sealing
Circle and U-shaped steel loop are realized reducing U-shaped sealed ring deformation respectively and prevent its deformation failure；By the way that section is for triangle circular arc and contains
The slagging-off ring of large and small groove, realization prevents the dregs of fat from entering piston, and temporary oil leak and the dregs of fat.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is the close-up schematic view of sealing device of the present invention.
Fig. 3 is the close-up schematic view of present invention slagging-off ring.
Wherein：1st, locking nut, 2, cushion, 3, slagging-off ring, 4, piston, 5, U-shaped sealing ring, 6, elastic ring, 7, piston
Bar, 8, ladder-shaped sealing ring, 9, U-shaped steel loop, 10, big groove, 11, little groove, 12, cylinder barrel.
Specific embodiment
Embodiment：
As shown in Figure 1 and Figure 2, a kind of sealing piston of hydraulic cylinder device with anti-deformation and storage oil leak ability of the invention,
Mainly include cylinder barrel 12, piston 4, piston rod 7, U-shaped sealing ring 5, ladder-shaped sealing ring 8, U-shaped steel loop 9 and slagging-off ring 3, piston rod 7
Head is provided with the shaft shoulder and external screw thread, and elastic ring 6, piston 4, cushion 2 and locking nut 1 are sequentially arranged on piston rod 7.
With reference to shown in Fig. 2, the material of U-shaped sealing ring 5 is rubber, and U-shaped sealing ring 5 is for 2 and installed in the side disc of piston 4
On, the section of U-shaped sealing ring 5 is U-shape structure, and its hollow depth ish 1, wall thickness isb 1.During work, oil leak is realized in this design
It is temporary, i.e., when there is micro hydraulic oil to be leaked through U-shaped sealing ring 5, the hydraulic oil of leakage can flow to the indent of U-shaped sealing ring 5
In groove, so as to realize the temporary of oil leak, prevent it from being leaked into another chamber through piston 4.
The material of U-shaped steel loop 9 is 45 steel, and U-shaped steel loop 9 is arranged on the inner side of U-shaped sealing ring 5, and its upper end is away from U-shaped sealing ring 5
Upper end ish 2Andh 2=h 1/ 4, wall thickness isb 2Andb 2=b 1/3.During work, this design prevents the deformation failure of U-shaped sealing ring 5, that is, lead to
The high intensity and high rigidity of U-shaped steel loop 9 are crossed, the deformation of U-shaped sealing ring 5 is resisted, its seal failure is prevented；And U-shaped steel loop 9 is high
Degree is designed as less than U-shaped sealing ring 5, and this design can produce small deformation when U-shaped sealing ring 5 can be made to be moved with piston 4, is led to
Reduction contact surface is crossed to reduce the resistance of motion of piston 4.
The material of ladder-shaped sealing ring 8 is rubber, and ladder-shaped sealing ring 8 is 4 and 2 for one group is arranged on U-shaped sealing ring 5
On two ends, it is highlyh 3Andh 3=h 1/8.During work, this design reduces the deformation of U-shaped sealing ring 5, strengthens the close of piston 4
Envelope, i.e., by the interaction of ladder-shaped sealing ring 8 and U-shaped sealing ring 5, by the compressible deformable energy of U-shaped sealing ring 5 with frictional heat energy
Form consumption, reduce the deformation of U-shaped sealing ring 5.
With reference to shown in Fig. 3, slagging-off ring 3 is arranged in the forward and backward both ends of the surface of piston 4, and the section of the ring 3 that removes the gred is triangle circular arc
Structure, its arc radius isR, big groove and little groove are sequentially provided with from inside to outside on the slagging-off outboard end of ring 3.It is this during work
The motion of piston 4 slagging-off and temporary oil leak are realized in design, i.e., by arc structure, on the premise of the resistance of motion of piston 4 is reduced, and
The dregs of fat on cylinder barrel 12 can be made to flow into the inner chamber of cylinder barrel 12 along circular arc, prevent the dregs of fat from causing into the contact surface of piston 4 and cylinder barrel 12
Fretting wear, additionally, large and small groove can keep in minute leakage oil and the dregs of fat.
Claims (1)
1. it is a kind of with anti-deformation and storage oil leak ability sealing piston of hydraulic cylinder device, mainly including cylinder barrel, piston, piston
Bar, U-shaped sealing ring, ladder-shaped sealing ring, U-shaped steel loop and slagging-off ring, piston rod head are provided with the shaft shoulder and external screw thread, elastic ring, piston,
Cushion and locking nut are sequentially arranged on piston rod；It is characterized in that：The material of the U-shaped sealing ring is rubber, U-shaped close
Seal is 2 and on piston side disc, and the section of U-shaped sealing ring is U-shape structure, and its hollow depth ish 1, wall thickness
Forb 1；The material of the U-shaped steel loop is 45 steel, and U-shaped steel loop is arranged on U-shaped sealing ring inner side, and its upper end is away from U-shaped sealing ring upper end
Forh 2Andh 2=h 1/ 4, wall thickness isb 2Andb 2=b 1/3；The material of the ladder-shaped sealing ring is rubber, and ladder-shaped sealing ring is 4 and 2
For one group is arranged on the two ends of U-shaped sealing ring, it is highlyh 3Andh 3=h 1/8；The slagging-off ring is arranged on the forward and backward of piston
In both ends of the surface, the section of the ring that removes the gred is triangle arc structure, and its arc radius isR, on slagging-off ring outboard end from inside to outside successively
It is provided with big groove and little groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510602209.XA CN105179377B (en) | 2015-09-21 | 2015-09-21 | A kind of sealing piston of hydraulic cylinder device with anti-deformation and storage oil leak ability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510602209.XA CN105179377B (en) | 2015-09-21 | 2015-09-21 | A kind of sealing piston of hydraulic cylinder device with anti-deformation and storage oil leak ability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105179377A CN105179377A (en) | 2015-12-23 |
| CN105179377B true CN105179377B (en) | 2017-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510602209.XA Expired - Fee Related CN105179377B (en) | 2015-09-21 | 2015-09-21 | A kind of sealing piston of hydraulic cylinder device with anti-deformation and storage oil leak ability |
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| Country | Link |
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| CN (1) | CN105179377B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050820B (en) * | 2016-08-17 | 2018-11-13 | 四川英发太阳能科技有限公司 | A kind of silk-screen detecting system of solar cell |
| CN111734734B (en) * | 2020-07-02 | 2020-12-22 | 台州七八一六船舶工业有限公司 | Adjusting device of radial thrust sliding bearing |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2397312Y (en) * | 1999-05-27 | 2000-09-20 | 重庆钢铁(集团)有限责任公司 | Composite sealing ring |
| JP2002181010A (en) * | 2000-12-13 | 2002-06-26 | Mitsubishi Heavy Ind Ltd | Seal ring of hydraulic equipment |
| CN201705922U (en) * | 2010-06-23 | 2011-01-12 | 韩春洋 | Metal spring embedded seal box |
| EP2607675B1 (en) * | 2010-08-20 | 2017-05-10 | Zengli Yang | Oil-reserving piston ring |
| CN202074027U (en) * | 2011-06-01 | 2011-12-14 | 三一重工股份有限公司 | Hydraulic oil cylinder and piston body of same |
| CN102278468A (en) * | 2011-07-12 | 2011-12-14 | 扬州斯普森机械制造有限公司 | Sealed hydraulic cylinder |
| CN102606442B (en) * | 2012-03-21 | 2015-06-10 | 三一重工股份有限公司 | Piston pump for pumping slurry shaped materials, in particular concrete, and concrete pump |
| CN203308828U (en) * | 2013-05-17 | 2013-11-27 | 苏州东风益方汽车零部件有限公司 | High-stability connecting rod |
| CN204985164U (en) * | 2015-09-21 | 2016-01-20 | 济南大学 | Pneumatic cylinder piston packaging device with oil leak is just stored up to shape of preapring for an unfavorable turn of events |
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2015
- 2015-09-21 CN CN201510602209.XA patent/CN105179377B/en not_active Expired - Fee Related
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| CN105179377A (en) | 2015-12-23 |
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