CN202108986U - Composite drum type sealing ring - Google Patents
Composite drum type sealing ring Download PDFInfo
- Publication number
- CN202108986U CN202108986U CN2011201675720U CN201120167572U CN202108986U CN 202108986 U CN202108986 U CN 202108986U CN 2011201675720 U CN2011201675720 U CN 2011201675720U CN 201120167572 U CN201120167572 U CN 201120167572U CN 202108986 U CN202108986 U CN 202108986U
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- China
- Prior art keywords
- layer
- shore hardness
- sealing ring
- degrees
- polyurethane layer
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model provides a composite drum type sealing ring which comprises an annular base body; the base body has a composite layer structure which is divided into two layers along the radial direction; the outer layer is a polyurethane layer with the Shore hardness of 97 degrees A, and the inner layer is a butadiene-acrylonitrile rubber layer with the Shore hardness of 84 degrees A; and the rubber lining and the outer polyurethane layer are tightly bonded together so that the situation that a sealing piece is rubbed to be damaged due to dislocation of the rubber lining and the outer polyurethane layer during the assembling process can be avoided. The polyurethane layer with the Shore hardness of 97 degrees A has high abrasive resistance, tearing resistance and loading capacity, and the butadiene-acrylonitrile rubber layer with the Shore hardness of 84 degrees A has high compression rebound resilience so as to be capable of compensating the low abrasion of the polyurethane layer so that the whole sealing ring can achieve good sealing effect. In conclusion, the composite drum type sealing ring has good loading capacity, abrasive resistance and compression rebound resilience.
Description
Technical field
The utility model relates to a kind of seal ring, particularly a kind of compound cydariform seal ring.
Background technique
Before this, the seal ring of extensive use has the sealed product of the types such as full-polyurethane cydariform seal ring and canvas filler rubber cydariform seal ring of single material on sealing market.Full-polyurethane cydariform seal ring has reduced compression rebound when having guaranteed bearing capacity and wear resistance; Canvas filler rubber cydariform seal ring has reduced bearing capacity and wear-resisting property when having guaranteed the high resilience of rubber, both in use are difficult to take into account simultaneously.Above sealed product whole process of production is by manual operation production, and too many personal factor causes the difficult quality guarantee of product.And these sealed products are because the narrow limitation of material capability own is difficult to satisfy the requirement of Environmental Conditions.
Summary of the invention
The purpose of the utility model is to solve the defective that existing cydariform seal ring bearing capacity, wear resistance and compression resilience can be taken into account, and a kind of compound cydariform seal ring is provided.
Address the above problem; A kind of compound cydariform seal ring that the utility model provides comprises the ring-type matrix, and described matrix is radially to be divided into two-layer lamination layer structure; Skin is 97 ° of A polyurethane layer of shore hardness, and internal layer is the nitrile butadiene rubber layer of 84 ° of A of Shao Er hardness.
Elastometric lining and polyurethane skin hold tightly together, and can avoid in assembly process the dislocation owing to the two to rub bad Sealing with the hands.97 ° of A polyurethane layer of shore hardness have good high wear resistance, resistance to tearing and bearing capacity; The nitrile butadiene rubber layer of 84 ° of A of Shao Er hardness has the high compression rebound elasticity; Can the low wearing and tearing of polyurethane be compensated, thereby make whole seal ring reach good sealing effect.In sum, the compound cydariform seal ring that the utility model provides has good bearing capacity, wear resistance and compression recovery performance.
Description of drawings
Fig. 1 is the structural representation of the compound cydariform seal ring of the utility model.
Among the figure, 97 ° of A polyurethane layer of 1-shore hardness, the nitrile butadiene rubber layer of 84 ° of A of 2-Shao Er hardness.
Embodiment
Below in conjunction with accompanying drawing the utility model is done and to be specified.
The described a kind of compound cydariform seal ring of the utility model, as shown in Figure 1, comprise the ring-type matrix, matrix is radially to be divided into two-layer lamination layer structure, and skin is 97 ° of A polyurethane layer 1 of shore hardness, and internal layer is the nitrile butadiene rubber layer 2 of 84 ° of A of Shao Er hardness.The internal layer and the outside can identify with various colors, adopt redness like polyurethane layer, and rubber layer adopts black.
The preparation method of the described compound cydariform seal ring of the utility model may further comprise the steps: (1) makes rubber tube, carries out rough turn, the surface clean in surface; (2) rubber tube is 100 ℃ of preheatings, and mould is put in (3), on rubber tube, carries out cast polyurethane; (4) carry out one step cure and post vulcanization; Process composite pipe fitting and placed 72 hours, carry out on the one step cure cast hot plate, condition is 110 ℃ * 30 minutes; Post vulcanization condition of carrying out in air dry oven is 80 ℃ * 16 hours, and (5) are with the compound cydariform seal ring of a turning moulding of composite pipe fitting.Make polyurethane become an integral body with the rubber good bond through the control process parameter.
Compound cydariform seal ring is to be formed by the turning of composite pipe fitting, has reduced the making of fixture clamping fixture, has improved manufacturing efficiency.Say to have the favorable mechanical processibility from processing, and shape and size are unrestricted, for be pilot, rush.Its turning course of working may further comprise the steps: (1) is according to sealed groove and relevant criterion design sealed product drawing; Not having the mould machining center according to drawing at Sealing programmes; (2) with above-mentioned prefabricated polyurethane and rubber combined pipe fitting with special tooling bonding or clamping, (3) tool setting is provided with the workpiece initial point; (4) carry out program debugging and test run, produce in batches the qualified back of (5) initial survey.(6) the cydariform seal ring with the turning moulding is assembled into complete sets of products with the L shaped guide ring of polyoxymethylene, and the L shaped guiding of polyoxymethylene can disposable injection moulding can be injected into the back turning machine shaping of pipe material.
Claims (1)
1. a compound cydariform seal ring comprises the ring-type matrix, it is characterized in that: matrix is radially to be divided into two-layer lamination layer structure, and skin is 97 ° of A polyurethane layer of shore hardness (1), and internal layer is the nitrile butadiene rubber layer (2) of 84 ° of A of Shao Er hardness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201675720U CN202108986U (en) | 2011-05-24 | 2011-05-24 | Composite drum type sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201675720U CN202108986U (en) | 2011-05-24 | 2011-05-24 | Composite drum type sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202108986U true CN202108986U (en) | 2012-01-11 |
Family
ID=45434420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201675720U Expired - Fee Related CN202108986U (en) | 2011-05-24 | 2011-05-24 | Composite drum type sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202108986U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213316A (en) * | 2011-05-24 | 2011-10-12 | 山西浩业通用设备有限公司 | Combined drum-type seal ring and preparation method thereof |
| CN103697164A (en) * | 2013-11-29 | 2014-04-02 | 江苏蛟龙重工集团有限公司 | Pipeline combining and sealing device |
| CN106286824A (en) * | 2015-05-27 | 2017-01-04 | 无锡恩福油封有限公司 | Sealing ring |
| CN110388461A (en) * | 2018-04-16 | 2019-10-29 | 中国石油大学(北京) | A kind of rubber seal and the preparation method and application thereof |
-
2011
- 2011-05-24 CN CN2011201675720U patent/CN202108986U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213316A (en) * | 2011-05-24 | 2011-10-12 | 山西浩业通用设备有限公司 | Combined drum-type seal ring and preparation method thereof |
| CN102213316B (en) * | 2011-05-24 | 2014-05-28 | 山西浩业通用设备有限公司 | Combined drum-type seal ring and preparation method thereof |
| CN103697164A (en) * | 2013-11-29 | 2014-04-02 | 江苏蛟龙重工集团有限公司 | Pipeline combining and sealing device |
| CN106286824A (en) * | 2015-05-27 | 2017-01-04 | 无锡恩福油封有限公司 | Sealing ring |
| CN110388461A (en) * | 2018-04-16 | 2019-10-29 | 中国石油大学(北京) | A kind of rubber seal and the preparation method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20120524 |