CN2443195Y - Composite sealing ring - Google Patents
Composite sealing ring Download PDFInfo
- Publication number
- CN2443195Y CN2443195Y CN 99258386 CN99258386U CN2443195Y CN 2443195 Y CN2443195 Y CN 2443195Y CN 99258386 CN99258386 CN 99258386 CN 99258386 U CN99258386 U CN 99258386U CN 2443195 Y CN2443195 Y CN 2443195Y
- Authority
- CN
- China
- Prior art keywords
- ring
- piston head
- sealing ring
- utility
- model
- 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
Links
Abstract
The utility model relates to a composite sealing ring for single hydraulic props, which is formed into a ring shape by hot pressing rubber through a die and is provided with a wedge surface in a ring shape. The utility model is characterized in that the sealing ring is provided with lug bosses which are connected with grooves of a circular piston head, and circular ring-shaped wedge faces which match with grooves of a circular ring-shaped Y type ring in an insertion and wedge type; the connection between the lug bosses of the sealing ring and the grooves of the circular piston head is realized by the elasticity of the sealing ring and the piston head; the wedge faces of the sealing ring matches with the grooves of the Y type ring of the piston head match in a wedge surface so that an excellent sealing effect can be achieved. The utility model has the advantages that the utility model effectively solves the problem of the leakage of an oil cylinder; the manufacturing process of repairing single hydraulic props is simple; the cost of heavy repair is low; the operation is easy, and the use is safe.
Description
The utility model relates to the seal ring in the employed hydraulic prop of coal-face under a kind of the composite seal circle, particularly coal mine.
At present, the seal ring that existing hydraulic prop uses, its product requirement oil cylinder precision, emulsified liquid purity is very high, and uses and often can not reach usage requirement, so cause problems such as hydraulic prop load seepage, overhaul cost height.
The purpose of this utility model is for a kind of novel combined seal ring is provided, and it not only can effectively solve because of operating conditions causes the oil cylinder precise decreasing, and emulsified liquid purity is low, cause hydraulic prop load seepage etc., and the overhaul cost is low, and Safety performance is good.
The purpose of this utility model is achieved in that the composite seal circle is set on the oil cylinder piston head, is being connected of the boss on the composite seal circle and piston head groove that self elasticity by seal ring and piston head realizes.The wedge surface of seal ring is wedge surface with the bifurcation type circle groove of piston head and cooperates, and the Y-shaped ring groove plays the fitted seal effect is that insertion by the right side wedge surface realizes.The composite seal circle is outer through being attached on the cylinder wall, after injecting liquid generation pressure in the oil cylinder, piston head integral body moves to the right, and piston head is subjected to external resistance and after static, the oil cylinder internal pressure continues to raise, the composite seal circle is moved to the right again, wherein composite sealing ring external diameter sealing surface is close on the cylinder wall and slides to the right, in the Y-shaped ring groove on the wedge surface insertion piston head, produces the supercharging sealing, in-cylinder pressure is big more, and sealability is good more.After the unloading, the oil cylinder internal pressure reduces, and the composite seal circle restores to the original state, and finishes whole seal process.
Owing to adopted above-mentioned design proposal, it efficiently solves the oil cylinder leakage problems, makes overhaul hydraulic prop technology simple, and the overhaul cost is low, and is easy to operate, safe in utilization.
Concrete structure of the present utility model is provided by the following example and accompanying drawing.
Fig. 1 is the plan view that provides according to the utility model.
The utility model composite seal circle (4) is that rubber is shaped into circular shape through mould heat pressure, and has the circular shape wedge surface.The composite seal circle is provided with the recessed poor boss that is connected with round piston head (2), boss on composite seal circle (4) internal diameter is to realize by composite seal circle (4) self elasticity with recessed poor being connected of round piston head (2), composite sealing ring (4) is established with circular shape Y-shaped ring (3) ditch poor being and is inserted the circular shape wedge surface that wedge type cooperates, the circular shape wedge surface of composite seal circle (4) cooperates with the poor insertion wedge type that is of Y type circular shape circle (3) circular shape ditch, when composite seal circle (4) to the diagram right side when moving e.e ', piston head (2), Y-shaped ring (3) is motionless, bulge in the poor wedge surface insertion of the circular shape of composite seal circle (4) Y-shaped ring (3) circular shape ditch is poor, by Y-shaped ring (3), just produce to oil cylinder (1), the power of piston head (2) both direction, improve Y-shaped ring (3) to oil cylinder (1) by propagation of pressure, the sealing effect of piston head (2), composite seal circle (4) cylindrical sealing surface also is close on the A face of oil cylinder (1) simultaneously, oil cylinder (1) pressure is big more like this, sealing effect is good more, when unloading with in-cylinder pressure, composite seal circle (4) is moved to the left under the rubber elasticity effect automatically, and entire work process finishes.
Claims (1)
1, a kind of composite seal circle, it is characterized in that composite seal circle (4) is to be shaped into circular shape with rubber through mould heat pressure, and have a circular shape wedge surface, composite seal circle (4) is provided with the recessed poor boss that is connected of round piston head (2), and composite seal circle (4) is provided with circular shape Y-shaped ring (3) ditch poor being and inserts the circular shape wedge surface that wedge type cooperates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99258386 CN2443195Y (en) | 1999-12-22 | 1999-12-22 | Composite sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99258386 CN2443195Y (en) | 1999-12-22 | 1999-12-22 | Composite sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2443195Y true CN2443195Y (en) | 2001-08-15 |
Family
ID=34040997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99258386 Expired - Fee Related CN2443195Y (en) | 1999-12-22 | 1999-12-22 | Composite sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2443195Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323157B (en) * | 2008-07-14 | 2010-09-01 | 东莞市新志密封技术有限公司 | Method for producing sealing ring |
-
1999
- 1999-12-22 CN CN 99258386 patent/CN2443195Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323157B (en) * | 2008-07-14 | 2010-09-01 | 东莞市新志密封技术有限公司 | Method for producing sealing ring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201763722U (en) | Double-acting multilevel hydraulic cylinder | |
| CN205237950U (en) | Composite piston's sealing ring shaping device | |
| CN2443195Y (en) | Composite sealing ring | |
| CN206845453U (en) | A kind of anti-package plunger piston slippery boots assembly | |
| CN205298095U (en) | Supercharged oil cylinder | |
| CN201190704Y (en) | Inside and outside double-drum type hydraulic reinforcement cylinder | |
| CN217177037U (en) | Landing leg hydro-cylinder with integral bulb piston rod | |
| CN110118211B (en) | Square cylinder and sealing ring and sealing structure used in square cylinder | |
| CN210566206U (en) | Novel plunger type structure master cylinder | |
| CN207920986U (en) | A kind of Pneumatic booster pump with unloading function | |
| CN206267145U (en) | A kind of anchor cable construction Integral jack-ups | |
| CN212056033U (en) | Portable dismantlement formula power station valve | |
| CN201588839U (en) | Hydraulic cylinder capable of automatically increasing pressure force | |
| CN215697196U (en) | Universal water sealing mould | |
| CN2851787Y (en) | Universal spherical joint | |
| CN217926252U (en) | Novel high-pressure closed water seal structure | |
| CN217255818U (en) | Compound pipe bush water pressure frock | |
| CN217177038U (en) | Telescopic oil cylinder with optimized sealing performance | |
| CN213541494U (en) | Multistage expansion curing device for inner cavity of packing box of valve rod of control valve | |
| CN212455043U (en) | Loader movable arm duplex mixing oil cylinder | |
| CN204041260U (en) | A kind of new automobile engine piston | |
| CN2396194Y (en) | Chrome-plating seal piston ring | |
| CN212656955U (en) | Cylinder block connecting structure of high-efficiency pneumatic multistage pressurizing device | |
| CN211144720U (en) | Supercharging device for driving liquid by compressed air | |
| CN2388371Y (en) | Locked hydraulic cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |