CN206112076U - A " C " type composite seal spare for hydraulic pressure ready -packaged joint - Google Patents
A " C " type composite seal spare for hydraulic pressure ready -packaged joint Download PDFInfo
- Publication number
- CN206112076U CN206112076U CN201621063574.4U CN201621063574U CN206112076U CN 206112076 U CN206112076 U CN 206112076U CN 201621063574 U CN201621063574 U CN 201621063574U CN 206112076 U CN206112076 U CN 206112076U
- Authority
- CN
- China
- Prior art keywords
- seal
- type
- mandrel
- hydraulic pressure
- dabber
- 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.)
- Active
Links
Landscapes
- Gasket Seals (AREA)
- Sealing Devices (AREA)
Abstract
Present high -pressure oil blanket can directly become violent impact to O type cast when high -pressure fluid process, can enclose the O type even and directly wash out, because of lacking sealing up of O type circle, directly results in fluid to leak when sealed position is got back to to the dabber. The utility model discloses a C type composite seal spare of hydraulic pressure ready -packaged joint, including quick -operation joint casing, seal, dabber, dabber cavity, draining hole, its characteristics lie in that quick -operation joint casing afterbody is equipped with the step, and the step outside is equipped with connecting thread, and the step below is equipped with the seal, is equipped with compression spring between seal and casing, the seal is inboard, quick -operation joint casing center fixedly connected with dabber, and the seal covers in the dabber outside, the inside cavity structure that is of dabber. This technical scheme's superior, the sealed effect of comprehensive sealing performance is obvious, tight, the no fluid dripping phenomenon of hydraulic pressure ready -packaged joint static sealing, and it is anticipated to reach the design completely, gains gratifying result.
Description
Technical field
This utility model is related to hydraulic packing field, especially a kind of c-type combination seal for hydraulic pressure ready-packaged joint,
Which is applied on the hydraulic test higher to sealing and reliability requirement.
Background technology
At present, sealing ring is the conventional sealing means of hydro-pneumatic field, and existing single seal form is more and more not yet
The requirement of modern machines equipment is adapted to, and needs to research and develop a kind of new sealing means modern machines equipment to be adapted to sealing
Require, to improve its sealing and reliability.Before accompanying drawing 1 show improvement, hydraulic pressure ready-packaged joint mandrel is in standstill seal state,
Bracing ring is used with "O"-ring arrangement, with sealing property, fluid No leakage；Operating state when accompanying drawing 2 is work, work shape
During state, seal is subject to ready-packaged joint " female end " axial thrust and slides inwards, exposes on mandrel and mandrel 4 and interpenetrates
Oil leak hole, high-voltage oil liquid in the mandrel cavity by 4 oil leak holes for interpenetrating on mandrel, injection ready-packaged joint shell at a high speed
Body, now high-voltage oil liquid severe impact can be formed to O-ring directly, or even O-ring can directly be washed out, when mandrel returns to sealing
Because lacking the sealing of O-ring during position, oil liquid leakage is directly resulted in.
The content of the invention
For the problems referred to above, this utility model provides a kind of " C " type combination seal for hydraulic pressure ready-packaged joint, can
The impact of high-pressure oil flow is born well, so as to effectively prevent sealing member because impact causes situation about coming off to occur, well
Realize static sealing performance.
For achieving the above object, this utility model is designed with following manner is carried out：
A kind of c-type combination seal for hydraulic pressure ready-packaged joint, including snap joint housing, seal, mandrel, mandrel
Cavity, oil leak hole, its feature are that snap joint housing afterbody is provided with step, is provided with connection screw thread, below step outside step
Seal is provided with, compression spring between seal and housing, is provided with；On the inside of seal, snap joint casing center be fixedly connected with core
Axle, seal are covered on the outside of mandrel, be cavity structure, be radially provided with 4 and interpenetrate on the side wall of mandrel cavity inside mandrel
Oil leak hole, mandrel front end outer side is provided with rectangular seal groove, is provided with O-ring and c-type supports seal in rectangular seal groove,
O-ring is arranged at rectangular seal trench interiors, is enclosed with c-type and supports seal, c-type to support the opening of seal on the outside of O-ring
Towards O-ring.
As the further improvement of product, O-ring of the O-ring for NBR materials.
Used as the further improvement of product, the c-type supports seal for the support seal of PTFE3 materials.
During resting state, high-voltage oil liquid be sealed in it is immobilising in mandrel cavity.
During working condition, high-voltage oil liquid starts flowing.
The operation principle of this device is：Mandrel and seal are slip cooperating relationships, and seal rear end is provided with back-moving spring,
Mandrel transfixion, seal are enclosed within mandrel and reciprocatingly slide.During working condition, seal is subject to ready-packaged joint " female end " axle
Slided to thrust inwards, expose 4 oil leak holes for interpenetrating on mandrel and mandrel, high-voltage oil liquid passes through in mandrel cavity
4 oil leak holes for interpenetrating on mandrel, inject at a high speed ready-packaged joint housing, and seal rear end spring is compressed.Static shape
During state, i.e., high-pressure oil flow halted state when, seal loses ready-packaged joint " female end " axial thrust, after the seal for being compressed
End spring is resetted, and seal is reset to sealing station, the oil leak hole on mandrel is blocked.
The beneficial effects of the utility model are：Compared with prior art, " C " type combination seal is bearing hydraulic oil high pressure
High speed impact, because "O"-ring is wrapped in inside bracing ring, the overall intensity of sealing ring is strengthened, and can be held well
Impacted by high-pressure oil flow, so that sealing member is effectively prevent because impact causes situation about coming off to occur, realized well quiet
State sealing property, the comprehensive sealing superior performance of the technology scheme, sealing effectiveness are obvious, and hydraulic pressure ready-packaged joint static sealing is tight
It is close, without oil drops leak phenomenon, be fully achieved expected design, achieve satisfactory results.
This invention CNG at home（Compressed Natural Gas compressed natural gas）Industry air entraining substation runs
In, take the lead in solving generally existing because seal failure causes the difficulties of hydraulic pressure ready-packaged joint evaporating, emitting, dripping or leaking of liquid or gas, to enterprise
Clean manufacturing and establishment friendly environment society have positive impetus；This invention breaks foreign technology barrier envelope at one stroke
Lock, completely effectively instead of same kind of products at abroad, if obtaining wide popularization and application, will produce extremely considerable economic benefit and
Social benefit.Prior art application is U.S.'s PARKER combination seals, and cost is that 1300 yuan of RMB/ cover, " C " type of the invention
Combination seal "（Specification：RC56-T-26.1 × 21.5 × 4.35, material：PTFE3+NBR）Cost is 18 yuan of RMB/ sets, is often covered
1282 yuan of RMB of expense are saved directly.
Description of the drawings：
Fig. 1 is the left view radial section structural representation for improving front technical scheme；
Fig. 2 is the right visual path for improving front technical scheme to cross-sectional view；
Fig. 3 is the left view radial section structural representation of technical scheme after improvement；
Fig. 4 be improve after technical scheme right visual path to cross-sectional view；
Labelling in figure：1- snap joint housings；2- seals；3- mandrels；4- oil leak holes；5- "O"-rings；6-C types are supported
Seal.
Specific embodiment：
Embodiment 1：
As shown in Figure 3, be this invention standstill seal state, O type circles（NBR materials）It is wrapped in bracing ring
（PTFE3 materials）In form a seal combination body, component plays good sealing property；
As shown in Figure 4, be this invention dynamic behavior, seal is subject to ready-packaged joint " female end " axially to push away
Power and slide inwards, expose 4 oil leak holes for interpenetrating on mandrel and mandrel, high-voltage oil liquid passes through mandrel in mandrel cavity
Upper 4 oil leak holes for interpenetrating, inject at a high speed ready-packaged joint housing, and now c-type supports seal to bear hydraulic oil high pressure height
Speed impact, but because O-ring is wrapped in inside bracing ring, the overall intensity of sealing ring is strengthened, it is possible to well
The impact of high-pressure oil flow is born, and so that sealing member is effectively prevent because impact causes situation about coming off to occur, is realized well
Static sealing performance.By practical application and Follow-up observation to 50 hydraulic pressure ready-packaged joints, the comprehensive sealing of this invention
Energy is superior, sealing effectiveness is obvious, and hydraulic pressure ready-packaged joint static sealing is tight, leak phenomenon without oil drops, is fully achieved expected design,
Achieve satisfactory results.
During manufacture, need accurately to make the casting compression mould that c-type supports seal first, then once cast by mould and be pressed into
Type is produced, and as thickness is only 0.5 millimeter, casting pressure difficulty is larger, mould and die accuracy is required higher；The making of O-ring is relatively simple
It is single, but the same precision to mould has higher requirements, guaranteeing that O-ring each dimensional tolerance is accurate, reach fitting tight,
Good sealing property is realized, the material of O-ring is high-quality NBR, and it is high-quality PTFE3 that c-type supports the material of seal.
Claims (3)
1. a kind of c-type combination seal for hydraulic pressure ready-packaged joint, including snap joint housing, seal, mandrel, mandrel sky
Chamber, oil leak hole, its feature are that snap joint housing afterbody is provided with step, is provided with connection screw thread, sets below step outside step
There is seal, between seal and housing, be provided with compression spring；On the inside of seal, snap joint casing center be fixedly connected with core
Axle, seal are covered on the outside of mandrel, be cavity structure, be radially provided with 4 and interpenetrate on the side wall of mandrel cavity inside mandrel
Oil leak hole, mandrel front end outer side is provided with rectangular seal groove, is provided with O-ring and c-type supports seal in rectangular seal groove,
O-ring is arranged at rectangular seal trench interiors, is enclosed with c-type and supports seal, c-type to support the opening of seal on the outside of O-ring
Towards O-ring.
2. a kind of c-type combination seal for hydraulic pressure ready-packaged joint according to claim 1, it is characterised in that the O
O-ring of the type circle for NBR materials.
3. a kind of c-type combination seal for hydraulic pressure ready-packaged joint according to claim 1, it is characterised in that the C
Type supports seal for the support seal of PTFE3 materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621063574.4U CN206112076U (en) | 2016-09-20 | 2016-09-20 | A " C " type composite seal spare for hydraulic pressure ready -packaged joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621063574.4U CN206112076U (en) | 2016-09-20 | 2016-09-20 | A " C " type composite seal spare for hydraulic pressure ready -packaged joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206112076U true CN206112076U (en) | 2017-04-19 |
Family
ID=58519112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621063574.4U Active CN206112076U (en) | 2016-09-20 | 2016-09-20 | A " C " type composite seal spare for hydraulic pressure ready -packaged joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206112076U (en) |
-
2016
- 2016-09-20 CN CN201621063574.4U patent/CN206112076U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201763722U (en) | Double-acting multilevel hydraulic cylinder | |
| CN201827169U (en) | Multilevel hydraulic cylinder with front-mounted hydraulic fluid port | |
| CN103095023B (en) | Sealing structure for high-pressure seamless attach in nuclear main pump sartor shielding sleeve | |
| CN206112076U (en) | A " C " type composite seal spare for hydraulic pressure ready -packaged joint | |
| CN103240324A (en) | Liquid-expansion forming system for bimetal composite pipe | |
| CN205781529U (en) | A kind of conduit coupling | |
| CN203963347U (en) | A kind of middle pressure high-performance gas-liquid rapid pipe joint without flow losses | |
| CN203584882U (en) | Padding and mechanical sealing universal double entry pump | |
| CN203847686U (en) | Sealing mechanism | |
| CN206299637U (en) | A kind of hydraulic high-pressure pressurized cylinder | |
| CN206130082U (en) | Omega type composite seal spare | |
| CN204228531U (en) | Double screw pump body high pressure chest stamping tooling | |
| CN107143495B (en) | Mechanical sealing structure of high-pressure rotor pump | |
| CN203847474U (en) | High-pressure single-acting self-compensating and thin-wall hydraulic cylinder | |
| CN207018195U (en) | A kind of mechanical seal structure of high pressure impeller pump | |
| CN202531844U (en) | Bottom stirring corrugated pipe-type mechanical seal with water seal structure | |
| CN207297865U (en) | A kind of seal for fruit press apparatus | |
| CN206175525U (en) | Cylinder body, clutch pneumatic cylinder and clutch assembly of clutch pneumatic cylinder | |
| CN110671559A (en) | Metal compression ring composite sealing filler device and manufacturing method thereof | |
| CN203161666U (en) | Automobile water pump assembly | |
| CN202946654U (en) | Oil return structure of mechanical box body parts | |
| CN202510713U (en) | Mechanical sealing part for reaction kettle | |
| CN204253460U (en) | A kind of interior washing unit of Double entry middle-opening pump | |
| CN108297392B (en) | It is a kind of for manufacturing the external pressurized device of bilayer sleeve | |
| CN206130085U (en) | F type composite seal spare |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |