CN2285395Y - Mechanical sealing device - Google Patents
Mechanical sealing device Download PDFInfo
- Publication number
- CN2285395Y CN2285395Y CN 97232769 CN97232769U CN2285395Y CN 2285395 Y CN2285395 Y CN 2285395Y CN 97232769 CN97232769 CN 97232769 CN 97232769 U CN97232769 U CN 97232769U CN 2285395 Y CN2285395 Y CN 2285395Y
- Authority
- CN
- China
- Prior art keywords
- connecting sleeve
- vertical plane
- central shaft
- plain cushion
- end vertical
- 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
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Abstract
The utility model relates to a mechanical sealing device, which comprises a sealing sleeve and a flat pad. The utility model is characterized in that the sealing sleeve comprises an upper end plane in a cylindrical shape, a post-shaped connecting sleeve and a vertical surface on the lower end in the cylindrical shape. The upper end plane and the vertical surface on the lower end are connected into integration by the connecting sleeve. The vertical surface of the lower end is also provided with the flat pad and a spring clamp. The outer part of the connecting sleeve is sheathed with a spring. The utility model has tight sealing and no leakage phenomenon. [0].
Description
The utility model relates to a kind of seal arrangement, especially a kind of mechanical seal device.
The existing mechanical seal arrangement generally is static, guarantee sealing effect with packing washer and filler, sealing effect still can when the axis body at seal arrangement center is static, but after the central shaft body rotates suitable number of times, packing ring and filler serious wear just seepage can occur, and interior pressure is big more, and seepage is fast more.
The purpose of this utility model is to provide a kind of mechanical seal device tight, ne-leakage that seals.
The purpose of this utility model is achieved through the following technical solutions: the major character of sealing device is; The sealing device is along with axle rotation synchronously, and its sealing effect is realized by the static seal of stuffing box gland and motive sealing.This mechanical seal device, include stuffing box gland and plain cushion, sealing effect is to lean on the static seal and the motive sealing of stuffing box gland to realize, special way is that described stuffing box gland comprises Transverse plane on the ring, cylindricality connecting sleeve and cylindrical lower end vertical plane, Transverse plane is the smooth flat of combining closely with the Seal cage upper press cover on the ring, the cylindrical lower end vertical plane is the smooth vertical plane that combines with the central shaft intimate, be connected as a single entity by the cylindricality connecting sleeve between last Transverse plane and the lower end vertical plane, be close to the lower end vertical plane and be with plain cushion around central shaft, be close to the lower end vertical plane and be with plain cushion around central shaft, be close under the plain cushion that fixed card has spring clip on the central shaft, cylindricality connecting sleeve periphery between plain cushion and the last Transverse plane is with spring, rely on the pressure of spring to make to seal between Transverse plane and the upper press cover tighter, anti-sealing oozes out from end face, reaches motive sealing between Transverse plane and the upper press cover.Static seal combines with the central shaft intimate and realizes by the cylindrical lower end vertical plane, and assurance stuffing box gland and central shaft rotate synchronously, and prevents that seep water vertically in hole and central shaft connecting place under the stuffing box gland.
Described cylindricality connecting sleeve superficies adopt bellows-shaped.
Seal arrangement of the present utility model makes that whole device sealing is tight, the ne-leakage phenomenon takes place owing to adopted motive sealing and static seal.
Description of drawings is as follows:
Fig. 1-the utility model most preferred embodiment sectional view.
Provide most preferred embodiment of the present utility model below in conjunction with accompanying drawing, be used for further specifying the utility model.
Most preferred embodiment as shown in Figure 1, this embodiment's mechanical seal device, include stuffing box gland and plain cushion 2, stuffing box gland comprises Transverse plane 3 on the ring, cylindricality connecting sleeve 4 and cylindrical lower end vertical plane 5, Transverse plane 3 is the smooth flat of combining closely with Seal cage upper press cover 6 on the ring, cylindrical lower end vertical plane 5 is the smooth vertical plane that combines with central shaft 7 intimate, be connected as a single entity by cylindricality connecting sleeve 4 between last Transverse plane and the lower end vertical plane, cylindricality connecting sleeve 4 superficies adopt bellows-shaped, be close to lower end vertical plane 5 and be with plain cushion 2 around central shaft 7, be close under the plain cushion that fixed card has spring clip 8 on the central shaft, cylindricality connecting sleeve 4 peripheries between plain cushion 2 and the last Transverse plane 3 are with spring 1, rely on the pressure of spring to make to seal between Transverse plane 3 and the upper press cover 6 tighter, anti-sealing from then on end face oozes out, and reaches motive sealing between Transverse plane and the upper press cover.Static seal combines with central shaft 7 intimate by cylindrical lower end vertical plane 5 and realizes, assurance stuffing box gland and central shaft rotate synchronously, and prevents that seep water vertically in hole and central shaft connecting place under the stuffing box gland.
Require to go up Transverse plane 3 when manufacturing and reach certain degree of finish, be preferably in more than 5,, increase sealing effect to reduce wear and friction with upper press cover 6 surface of contact.
Claims (2)
1, a kind of mechanical seal device, include stuffing box gland and plain cushion (2), it is characterized in that described stuffing box gland comprises Transverse plane on the ring (3), cylindricality connecting sleeve (4) and cylindrical lower end vertical plane (5), Transverse plane on the ring (3) is the smooth flat of combining closely with Seal cage upper press cover (6), cylindrical lower end vertical plane (5) is the smooth vertical plane that combines with central shaft (7) intimate, be connected as a single entity by cylindricality connecting sleeve (4) between last Transverse plane and the lower end vertical plane, be close to the lower end vertical plane and be with plain cushion (2) around central shaft, be close under the plain cushion that fixed card has spring clip (8) on the central shaft, cylindricality connecting sleeve (4) periphery between plain cushion (2) and the last Transverse plane (3) is with spring (1).
2,, it is characterized in that described cylindricality connecting sleeve (4) superficies are bellows-shaped according to the described mechanical seal device of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97232769 CN2285395Y (en) | 1997-04-18 | 1997-04-18 | Mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97232769 CN2285395Y (en) | 1997-04-18 | 1997-04-18 | Mechanical sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2285395Y true CN2285395Y (en) | 1998-07-01 |
Family
ID=33944508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97232769 Expired - Fee Related CN2285395Y (en) | 1997-04-18 | 1997-04-18 | Mechanical sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2285395Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103623962A (en) * | 2012-08-22 | 2014-03-12 | Snu精密股份有限公司 | Spraying nozzle unit |
| CN105275580A (en) * | 2014-07-02 | 2016-01-27 | 现代自动车株式会社 | Coolant control valve of engine |
| CN112334275A (en) * | 2018-06-29 | 2021-02-05 | 阿特拉斯·科普柯工业技术公司 | Sealing structure for tightening tool |
| CN114800590A (en) * | 2021-01-22 | 2022-07-29 | 台达电子工业股份有限公司 | Vacuum clamping suction nozzle |
-
1997
- 1997-04-18 CN CN 97232769 patent/CN2285395Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103623962A (en) * | 2012-08-22 | 2014-03-12 | Snu精密股份有限公司 | Spraying nozzle unit |
| CN103623962B (en) * | 2012-08-22 | 2016-03-02 | Snu精密股份有限公司 | Spray nozzle unit |
| CN105275580A (en) * | 2014-07-02 | 2016-01-27 | 现代自动车株式会社 | Coolant control valve of engine |
| CN105275580B (en) * | 2014-07-02 | 2019-04-05 | 现代自动车株式会社 | The coolant control valve of engine |
| CN112334275A (en) * | 2018-06-29 | 2021-02-05 | 阿特拉斯·科普柯工业技术公司 | Sealing structure for tightening tool |
| US11590643B2 (en) | 2018-06-29 | 2023-02-28 | Atlas Copco Industrial Technique Ab | Sealing arrangement for a tightening tool |
| JP7422096B2 (en) | 2018-06-29 | 2024-01-25 | アトラス・コプコ・インダストリアル・テクニーク・アクチボラグ | Seal configuration for tightening tools |
| CN114800590A (en) * | 2021-01-22 | 2022-07-29 | 台达电子工业股份有限公司 | Vacuum clamping suction nozzle |
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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 |