CN205780873U - A kind of mining high-pressure-resistant sealed part - Google Patents
A kind of mining high-pressure-resistant sealed part Download PDFInfo
- Publication number
- CN205780873U CN205780873U CN201620471951.1U CN201620471951U CN205780873U CN 205780873 U CN205780873 U CN 205780873U CN 201620471951 U CN201620471951 U CN 201620471951U CN 205780873 U CN205780873 U CN 205780873U
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- ring
- pressure
- sealed part
- resistant sealed
- sealing ring
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Abstract
The utility model discloses a kind of mining high-pressure-resistant sealed part, including sealing ring and back-up ring, the upper-end part of driving lip seal structure of sealing ring, the inner side of the upper end of back-up ring is an annular protrusion, and the bottom of sealing ring matches with the upper end of back-up ring.Sealing ring uses hydrolysis resistant polyurethane material, and back-up ring uses polyformaldehyde material.The high pressure working environment of the hydraulic system that this utility model is applicable to winning equipment has good sealing effectiveness and longer service life.
Description
Technical field
This utility model relates to sealing device, particularly relates to the high-pressure-resistant sealed part of the hydraulic system of a kind of winning equipment.
Background technology
The existing sealing ring of mining industry is of a great variety, and high pressure piston shaft seal common are Y-shaped ring, Y-shaped ring adds back-up ring, Y-shaped ring adds O-ring root back-up ring structure.It is common seal form that Y-shaped ring adds O-ring root back-up ring structure, but is as the high pressure of the increasing of pressure, especially more than 50Mpa, and this sealing structure can not meet its working condition requirement.
Utility model content
In order to solve above-mentioned technical problem, this utility model provides a kind of mining high-pressure-resistant sealed part, and it can adapt to high pressure working environment, has good anti-extrusion performance, sealing property and longer service life.
Solve above-mentioned technical problem be the technical scheme is that
A kind of mining high-pressure-resistant sealed part, including sealing ring and back-up ring, described back-up ring is used for improving the compressive property of described sealing ring, the upper end of described sealing ring is lip seal structure, described lip seal structure can play good sealing function under mesohigh, the inner side of the upper end of described back-up ring is an annular protrusion, and the bottom of described sealing ring matches with the upper end of described back-up ring, and described annular protrusion is used for improving the anti-extrusion performance of described sealing ring.
Described lip seal structure includes main lip and secondary lip, is that an annular is prominent between described main lip and described secondary lip.Described annular highlights as flexible elastomer, to the vibration of machinery and seal fluid pressure oscillation under the influence of stable sealing function, the most described annular still can be kept to protrude help described main lip and described secondary lip forms packing sealing effectiveness respectively to both sides.
It is also preferred that the left the cross section that described annular highlights is in wave shape.
It is also preferred that the left described annular protrusion is an annular wedge.
The material of described sealing ring is hydrolysis resistant polyurethane.
The material of described back-up ring is polyformaldehyde.
It is also preferred that the left little than described sealing ring of the internal diameter of described back-up ring, thus improve the voltage endurance capability of described sealing ring.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of this utility model one embodiment.
In figure, 1-sealing ring；The main lip of 11-；12-annular highlights；13-pair lip；2-back-up ring；21-annular protrusion.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, each embodiment of the present utility model is explained in detail.
See Fig. 1, a kind of mining high-pressure-resistant sealed part, including sealing ring 1 and back-up ring 2, back-up ring 2 is used for improving the compressive property of sealing ring 1, the upper end of sealing ring 1 is lip seal structure, and lip seal structure can play good sealing function under mesohigh, and the inner side of the upper end of back-up ring 2 is an annular protrusion 21, the bottom of sealing ring 1 matches with the upper end of back-up ring 2, and annular protrusion 21 is used for improving the anti-extrusion performance of sealing ring 1.
Lip seal structure includes main lip 11 and secondary lip 13, is an annular prominent 12 between main lip 11 and secondary lip 13.Annular prominent 12 is flexible elastomer, still can keep stable sealing function under the influence of the pressure oscillation to mechanical vibration and sealing fluid, and annular prominent 12 contributes to main lip 11 and forms packing sealing effectiveness with pair lip 13 respectively to both sides simultaneously.
The cross section of annular prominent 12 is in wave shape.
Annular protrusion 21 is an annular wedge.
The material of sealing ring 1 is hydrolysis resistant polyurethane.
The material of back-up ring 2 is polyformaldehyde.
Little than sealing ring 1 of the internal diameter of back-up ring 2, thus improve the voltage endurance capability of sealing ring 1.
The pressure of mining high-pressure-resistant sealed part is to be transmitted by the working media of hydraulic pump, and the most mining working media includes HFA, oil-in-water.
The above; it is only this utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; the change that can readily occur in or replacement, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with scope of the claims.
Claims (7)
1. a mining high-pressure-resistant sealed part, it is characterised in that: include sealing ring and back-up ring, described sealing
The upper end of circle is lip seal structure, and the inner side of the upper end of described back-up ring is an annular protrusion, described sealing
The bottom of circle matches with the upper end of described back-up ring.
Mining high-pressure-resistant sealed part the most as claimed in claim 1, it is characterised in that: described lip seal structure
Including main lip and secondary lip, it is that an annular is prominent between described main lip and described secondary lip.
Mining high-pressure-resistant sealed part the most as claimed in claim 2, it is characterised in that: described annular highlights
Cross section is in wave shape.
Mining high-pressure-resistant sealed part the most as claimed in claim 1, it is characterised in that: described annular protrusion is
One annular wedge.
Mining high-pressure-resistant sealed part the most as claimed in claim 1, it is characterised in that: the material of described sealing ring
Matter is hydrolysis resistant polyurethane.
Mining high-pressure-resistant sealed part the most as claimed in claim 1, it is characterised in that: the material of described back-up ring
For polyformaldehyde.
Mining high-pressure-resistant sealed part the most as claimed in claim 1, it is characterised in that: the internal diameter of described back-up ring
Little than described sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620471951.1U CN205780873U (en) | 2016-05-20 | 2016-05-20 | A kind of mining high-pressure-resistant sealed part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620471951.1U CN205780873U (en) | 2016-05-20 | 2016-05-20 | A kind of mining high-pressure-resistant sealed part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205780873U true CN205780873U (en) | 2016-12-07 |
Family
ID=58114665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620471951.1U Active CN205780873U (en) | 2016-05-20 | 2016-05-20 | A kind of mining high-pressure-resistant sealed part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205780873U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642684A (en) * | 2017-09-19 | 2018-01-30 | 常州常工电子科技股份有限公司 | A kind of intelligence visits leakage device |
-
2016
- 2016-05-20 CN CN201620471951.1U patent/CN205780873U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642684A (en) * | 2017-09-19 | 2018-01-30 | 常州常工电子科技股份有限公司 | A kind of intelligence visits leakage device |
| CN107642684B (en) * | 2017-09-19 | 2019-10-15 | 常州常工电子科技股份有限公司 | A kind of intelligence spy leakage device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Mining piece of resistant pressurization Effective date of registration: 20180614 Granted publication date: 20161207 Pledgee: Pudong Shanghai technology financing Company limited by guarantee Pledgor: Voneseals Technology (Shanghai) Co., Ltd. Registration number: 2018310000033 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address |
Address after: Building 1, No. 373 Renqing Road, Pudong New Area, Shanghai, 200319 Patentee after: Shanghai Weiwan Sealing Technology Co., Ltd Address before: 200319, No. 1300, Lane 3, Cambridge East Road, Cambridge Town, Shanghai, Pudong New Area Patentee before: VONESEALS TECHNOLOGY (SHANGHAI) Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20201120 Granted publication date: 20161207 Pledgee: Pudong Shanghai technology financing Company limited by guarantee Pledgor: VONESEALS TECHNOLOGY (SHANGHAI) Co.,Ltd. Registration number: 2018310000033 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |