CN204985164U - Pneumatic cylinder piston packaging device with oil leak is just stored up to shape of preapring for an unfavorable turn of events - Google Patents
Pneumatic cylinder piston packaging device with oil leak is just stored up to shape of preapring for an unfavorable turn of events Download PDFInfo
- Publication number
- CN204985164U CN204985164U CN201520730988.7U CN201520730988U CN204985164U CN 204985164 U CN204985164 U CN 204985164U CN 201520730988 U CN201520730988 U CN 201520730988U CN 204985164 U CN204985164 U CN 204985164U
- Authority
- CN
- China
- Prior art keywords
- ring
- piston
- shaped
- seal ring
- slagging
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
- Actuator (AREA)
Abstract
The utility model provides a pneumatic cylinder piston packaging device with oil leak is just stored up to shape of preapring for an unfavorable turn of events mainly includes cylinder, piston, piston rod, U -type sealing ring, trapezoidal sealing washer, U shaped steel ring sum slagging -off ring, and piston rod head is equipped with the shaft shoulder and external screw thread, and elastic ring, piston, cushion and lock nut install on the piston rod in proper order. Its characteristics are that U shaped steel ring prevents that U -type sealing ring warp, and U -type sealing ring can store up the oil leak. The utility model discloses a U -type sealing ring in U type cross -section realizes keeping in of oil leak, realize respectively reducing the U -type sealing ring deformation and preventing its deformation failure through trapezoidal sealing washer and U shaped steel ring, be the triangle circular arc and contain slagging -off ring big, little recess through the cross -section, realize preventing that the dregs of fat from getting into the piston, and the keep in oil leak and the dregs of fat.
Description
Technical field
The utility model relate to a kind of there is anti-deforming and storage leakage of oil sealing piston of hydraulic cylinder device, particularly relate to a kind of U-shaped seal ring by U-shaped cross section and realize the temporary of leakage of oil, realize respectively reducing U-shaped sealed ring deformation and preventing its deformation failure by ladder-shaped sealing ring and U-shaped steel loop, be triangle circular arc by cross section and containing the slagging-off ring of large and small groove, realization prevents the dregs of fat from entering piston, and temporary leakage of oil and the dregs of fat, belong to the technical research field of hydraulic cylinder sealing.
Background technique
Oil hydraulic cylinder utilizes the straight reciprocating motion of piston to change hydraulic energy into mechanical energy, but in use easily there is following problem, and one is seal failure, and namely hydraulic oil leaks into another chamber through piston by a chamber, and this internal leakage can reduce the performance quality of oil hydraulic cylinder; Two is surface of contact that the dregs of fat in hydraulic oil easily enter piston and cylinder barrel, worn piston surface, causes piston seal failure and reduces working life of piston.
Therefore, for the problem such as seal failure, dregs of fat wearing and tearing that existing oil hydraulic cylinder in use exists, should consider from the seal arrangement of hydraulic cylinder piston, a kind of piston sealing device design good airproof performance, wearing and tearing without the dregs of fat.
Summary of the invention
The problems such as the seal failure that the utility model in use exists for existing oil hydraulic cylinder, dregs of fat wearing and tearing, provide a kind of can effectively solve the problem a kind of there is anti-deforming and storage leakage of oil sealing piston of hydraulic cylinder device.
Of the present utility model a kind of there is anti-deforming and storage leakage of oil sealing piston of hydraulic cylinder device by the following technical solutions:
A kind of have anti-deforming and the sealing piston of hydraulic cylinder device of storage leakage of oil, mainly comprise cylinder barrel, piston, piston rod, U-shaped seal ring, ladder-shaped sealing ring, U-shaped steel loop and slagging-off ring, piston rod head is provided with the shaft shoulder and outside thread, and elastic ring, piston, cushion and locking nut are installed on the piston rod successively; The material of described U-shaped seal ring is rubber, and U-shaped seal ring is 2 and is arranged on piston side disc, and the cross section of U-shaped seal ring is U-shaped structure, and its hollow depth is
h 1, wall thickness is
b 1; The material of described U-shaped steel loop is 45 steel, and U-shaped steel loop is arranged in U-shaped seal ring and surveys, and its upper end apart from U-shaped seal ring upper end is
h 2and
h 2=
h 1/ 4, wall thickness is
b 2and
b 2=
b 1/ 3; The material of described ladder-shaped sealing ring is rubber, ladder-shaped sealing ring be 4 and 2 be that on one group of two ends being arranged on U-shaped seal ring, it is highly
h 3and
h 3=
h 1/ 8; Described slagging-off ring is arranged in the forward and backward both ends of the surface of piston, and the cross section of slagging-off ring is triangle arc structure, and its radius of arc is
r, slagging-off ring outboard end is provided with big groove and little groove from inside to outside successively.
It is U-shaped structure that U-shaped seal ring is designed to cross section by the utility model, the temporary of leakage of oil is realized by this design, namely when there being micro-hydraulic oil to leak through U-shaped seal ring, the hydraulic oil leaked can flow in the inner groovy of U-shaped seal ring, thus realize the temporary of leakage of oil, prevent it from draining in another chamber through vent piston.
The utility model installs U-shaped steel loop in U-shaped seal ring, prevents U-shaped sealed ring deformation to lose efficacy by this design, namely by high strength and the high rigidity of U-shaped steel loop, resists the distortion of U-shaped seal ring, prevents its seal failure; And U-shaped steel loop height is designed to lower than U-shaped seal ring, this design can make U-shaped seal ring with producing small distortion during piston movement, by reducing surface of contact, reduces the resistance to motion of piston.
The utility model installs ladder-shaped sealing ring respectively on the two ends of U-shaped seal ring, reduce the distortion of U-shaped seal ring by this design, strengthen the sealing of piston, namely by the interaction of ladder-shaped sealing ring and U-shaped seal ring, by the compressible deformable energy of U-shaped seal ring with the form consumption of frictional heat energy, reduce the distortion of U-shaped seal ring.
Slagging-off ring design is that cross section is triangle circular arc and contains the structure of large and small groove by the utility model, realize piston movement slagging-off by this design and keep in leakage of oil, namely arc structure is passed through, under the prerequisite reducing piston movement resistance, the dregs of fat on cylinder barrel can be made again to flow into inner cavity of cylinder along circular arc, the surface of contact preventing the dregs of fat from entering piston and cylinder barrel causes fretting wear, and in addition, large and small groove can keep in minute leakage oil and the dregs of fat.
The beneficial effects of the utility model are: realize the temporary of leakage of oil by the U-shaped seal ring in U-shaped cross section; Realize respectively reducing U-shaped sealed ring deformation and preventing its deformation failure by ladder-shaped sealing ring and U-shaped steel loop; Be triangle circular arc by cross section and containing the slagging-off ring of large and small groove, realize preventing the dregs of fat from entering piston, and temporary leakage of oil and the dregs of fat.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is the close-up schematic view of the utility model seal arrangement.
Fig. 3 is the close-up schematic view of the utility model slagging-off ring.
Wherein: 1, locking nut, 2, cushion, 3, slagging-off ring, 4, piston, 5, U-shaped seal ring, 6, elastic ring, 7, piston rod, 8, ladder-shaped sealing ring, 9, U-shaped steel loop, 10, big groove, 11, little groove, 12, cylinder barrel.
Embodiment
Embodiment:
As shown in Figure 1, of the present utility model a kind of there is anti-deforming and storage leakage of oil sealing piston of hydraulic cylinder device, mainly comprise cylinder barrel 12, piston 4, piston rod 7, U-shaped seal ring 5, ladder-shaped sealing ring 8, U-shaped steel loop 9 and slagging-off ring 3,7, piston rod is provided with the shaft shoulder and outside thread, and elastic ring 6, piston 4, cushion 2 and locking nut 1 are arranged on piston rod 7 successively.
Shown in composition graphs 2, the material of U-shaped seal ring 5 is rubber, and U-shaped seal ring 5 is 2 and is arranged on the disc of piston 4 side, and the cross section of U-shaped seal ring 5 is U-shaped structure, and its hollow depth is
h 1, wall thickness is
b 1.During work, this design realizes the temporary of leakage of oil, and namely when there being micro-hydraulic oil to leak through U-shaped seal ring 5, the hydraulic oil of leakage can flow in the inner groovy of U-shaped seal ring 5, thus realizes the temporary of leakage of oil, prevents it from leaking in another chamber through piston 4.
The material of U-shaped steel loop 9 is 45 steel, and U-shaped steel loop 9 is arranged in U-shaped seal ring 5 and surveys, and its upper end apart from U-shaped seal ring 5 upper end is
h 2and
h 2=
h 1/ 4, wall thickness is
b 2and
b 2=
b 1/ 3.During work, this design prevents the deformation failure of U-shaped seal ring 5, namely by high strength and the high rigidity of U-shaped steel loop 9, resists the distortion of U-shaped seal ring 5, prevents its seal failure; And U-shaped steel loop 9 is highly designed to lower than U-shaped seal ring 5, small distortion can being produced when this design can make U-shaped seal ring 5 move with piston 4, by reducing surface of contact, reducing the resistance to motion of piston 4.
The material of ladder-shaped sealing ring 8 is rubber, ladder-shaped sealing ring 8 be 4 and 2 be that on one group of two ends being arranged on U-shaped seal ring 5, it is highly
h 3and
h 3=
h 1/ 8.During work, this design reduces the distortion of U-shaped seal ring 5, strengthens the sealing of piston 4, namely pass through the interaction of ladder-shaped sealing ring 8 and U-shaped seal ring 5, by the compressible deformable energy of U-shaped seal ring 5 with the form consumption of frictional heat energy, reduce the distortion of U-shaped seal ring 5.
Shown in composition graphs 3, slagging-off ring 3 is arranged in the forward and backward both ends of the surface of piston 4, and the cross section of slagging-off ring 3 is triangle arc structure, and its radius of arc is
r, slagging-off ring 3 outboard end is provided with big groove and little groove from inside to outside successively.During work, this design realizes piston 4 motion slagging-off and temporary leakage of oil, namely arc structure is passed through, under the prerequisite reducing piston 4 resistance to motion, the dregs of fat on cylinder barrel 12 can be made again to flow into cylinder barrel 12 inner chamber along circular arc, the surface of contact preventing the dregs of fat from entering piston 4 and cylinder barrel 12 causes fretting wear, and in addition, large and small groove can keep in minute leakage oil and the dregs of fat.
Claims (1)
1. one kind has anti-deforming and the sealing piston of hydraulic cylinder device of storage leakage of oil, mainly comprise cylinder barrel, piston, piston rod, U-shaped seal ring, ladder-shaped sealing ring, U-shaped steel loop and slagging-off ring, piston rod head is provided with the shaft shoulder and outside thread, and elastic ring, piston, cushion and locking nut are installed on the piston rod successively; It is characterized in that: the material of described U-shaped seal ring is rubber, U-shaped seal ring is 2 and is arranged on piston side disc, and the cross section of U-shaped seal ring is U-shaped structure, and its hollow depth is
h 1, wall thickness is
b 1; The material of described U-shaped steel loop is 45 steel, and U-shaped steel loop is arranged in U-shaped seal ring and surveys, and its upper end apart from U-shaped seal ring upper end is
h 2and
h 2=
h 1/ 4, wall thickness is
b 2and
b 2=
b 1/ 3; The material of described ladder-shaped sealing ring is rubber, ladder-shaped sealing ring be 4 and 2 be that on one group of two ends being arranged on U-shaped seal ring, it is highly
h 3and
h 3=
h 1/ 8; Described slagging-off ring is arranged in the forward and backward both ends of the surface of piston, and the cross section of slagging-off ring is triangle arc structure, and its radius of arc is
r, slagging-off ring outboard end is provided with big groove and little groove from inside to outside successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520730988.7U CN204985164U (en) | 2015-09-21 | 2015-09-21 | Pneumatic cylinder piston packaging device with oil leak is just stored up to shape of preapring for an unfavorable turn of events |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520730988.7U CN204985164U (en) | 2015-09-21 | 2015-09-21 | Pneumatic cylinder piston packaging device with oil leak is just stored up to shape of preapring for an unfavorable turn of events |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204985164U true CN204985164U (en) | 2016-01-20 |
Family
ID=55119537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520730988.7U Withdrawn - After Issue CN204985164U (en) | 2015-09-21 | 2015-09-21 | Pneumatic cylinder piston packaging device with oil leak is just stored up to shape of preapring for an unfavorable turn of events |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204985164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179377A (en) * | 2015-09-21 | 2015-12-23 | 济南大学 | Hydraulic cylinder piston sealing device with deformation preventing and leaked oil storing functions |
-
2015
- 2015-09-21 CN CN201520730988.7U patent/CN204985164U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179377A (en) * | 2015-09-21 | 2015-12-23 | 济南大学 | Hydraulic cylinder piston sealing device with deformation preventing and leaked oil storing functions |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204082463U (en) | A kind of radial plunger pump | |
| CN204985164U (en) | Pneumatic cylinder piston packaging device with oil leak is just stored up to shape of preapring for an unfavorable turn of events | |
| CN105179377A (en) | Hydraulic cylinder piston sealing device with deformation preventing and leaked oil storing functions | |
| CN215214178U (en) | Hydraulic cylinder with woven structure on inner surface of cylinder barrel | |
| CN210461689U (en) | Combined sealing element for piston rod | |
| CN205064432U (en) | Prevent that piston is radially rotatory, axial displacement's combination formula connecting device | |
| CN208221576U (en) | A kind of built-up piston assembly | |
| CN204985694U (en) | High temperature resistant, cold -resistant just wear resistant pneumatic cylinder composite piston device | |
| CN205331119U (en) | Hydrocylinder | |
| CN212356376U (en) | Hydraulic jack | |
| CN209743596U (en) | Self-repairing static sealing ring | |
| CN203335834U (en) | MD piston combination seal | |
| CN204985143U (en) | Starting characteristic is pneumatic cylinder of parabola type | |
| CN205207319U (en) | Milling machine balance cylinder sealing device | |
| CN101776147B (en) | Dynamic seal structure with automatic compensation function | |
| CN201982660U (en) | Dual-seal hydraulic oil cylinder | |
| CN204755462U (en) | Pneumatic cylinder | |
| CN203335377U (en) | Self-adaption loss-free plunger pump shaft sealing device | |
| CN105221512A (en) | A kind of oil hydraulic cylinder new type sealing device | |
| CN204371824U (en) | A kind of pressurized machine oil cylinder | |
| CN216278759U (en) | Piston rod structure of hydraulic oil cylinder | |
| CN213655300U (en) | Hydraulic cylinder piston with leakage-proof function | |
| CN213743858U (en) | Sealing structure of fluid delivery pump | |
| CN204985146U (en) | Starting characteristic is pneumatic cylinder of fast open form | |
| CN204663868U (en) | A kind of profile control and water plugging pump adopting novel sealing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160120 Effective date of abandoning: 20170623 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160120 Effective date of abandoning: 20170623 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |