CN201363421Y - Mechanical sealing - Google Patents
Mechanical sealing Download PDFInfo
- Publication number
- CN201363421Y CN201363421Y CNU2009201460878U CN200920146087U CN201363421Y CN 201363421 Y CN201363421 Y CN 201363421Y CN U2009201460878 U CNU2009201460878 U CN U2009201460878U CN 200920146087 U CN200920146087 U CN 200920146087U CN 201363421 Y CN201363421 Y CN 201363421Y
- Authority
- CN
- China
- Prior art keywords
- rotating ring
- spring seat
- ring
- moving ring
- spring
- 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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- Mechanical Sealing (AREA)
Abstract
The utility model discloses a mechanical sealing, comprising a moving ring component which consists of a moving ring O-shaped ring (4), a driving pin (9), a spring (8) connected between a moving ring (3) and a spring seat (7), the moving ring (3) of which the tail part is provided with a driving pin hole (13) and the spring seat (7) which is connected on a shaft (6) by a fastening screw (5); one end of a non-working surface of the moving ring (3) is provided with an inner step hole (14); the moving ring O-shaped ring (4) is positioned in the inner step hole (14) and is in interference fit with the moving ring (3) and the shaft (6); the head part of the spring seat (7) is crossed with the tail part of the moving ring (3); one end of the driving pin (9) is fixed on the head part of the spring seat (7) and used for being crossed with the tail part of the moving ring (3), and the other end thereof is positioned in the driving pin hole (13); and the axial diameter of the driving pin hole (13) is larger than that of the driving pin (9). The mechanical sealing can lead the axial size of the moving ring component to be compact and shortened, thus greatly reducing the size requirement to axial installation of a pump cavity.
Description
Technical field
The utility model relates to a kind of mechanical seal.
Background technique
At present, the Chang Gui mechanical seal static components that generally includes moving ring assembly and form by stationary ring and stationary ring " O " type circle; Described moving ring assembly comprises rotating ring, rotating seat, spring, spring seat, bracing ring, bellows and fastening ring; Described rotating ring is contained in the rotating seat; Fit in the left end plane of described rotating ring and the right-hand member plane of the stationary ring in the static components; Described bracing ring is enclosed within the bellows neck; Described bellows afterbody is held tightly on axle by fastening ring; Described fastening ring is provided with lug; Described rotating seat afterbody is provided with the groove that cooperates with lug; Described spring is connected between rotating seat and the spring seat.Though the mechanical seal of said structure has motive sealing effect preferably, but still there is a deficiency in it: owing to be provided with bellows between rotating ring and the spring seat, and also has certain axial distance between bellows and the spring seat, thereby make that the axial dimension of moving ring assembly is bigger, so this mechanical seal is not suitable for being installed in the less pump chamber of axial dimension.
The model utility content
The technical problems to be solved in the utility model is to provide a kind of axial dimension compactness of moving ring assembly that can make short and small, thereby reduce the mechanical seal to the axial installation dimension requirement of pump chamber greatly.
In order to solve the problems of the technologies described above, the utility model provides a kind of mechanical seal of adopting following structure, it comprises static components and the moving ring assembly of being made up of rotating ring, rotating ring O type circle, spring seat, spring and driving pin, and described spring seat is connected on the axle by Cock screw; Non-working surface one end of described rotating ring is provided with step hole in; Described rotating ring O type circle be positioned at a step hole and with the equal interference fit of rotating ring and axle; Described rotating ring afterbody is provided with the transmission pin-and-hole; Described spring seat head intersects with the rotating ring afterbody; One end of described driving pin is fixed on spring seat and is used for the head that intersects with the rotating ring afterbody, and its other end is positioned at the transmission pin-and-hole; The axial diameter of described transmission pin-and-hole is greater than the axial diameter of driving pin; Described spring is connected between rotating ring and the spring seat.
After adopting said structure, compared with prior art, the utlity model has following advantage: between rotating ring and spring seat bellows to be set different with prior art, spring seat head described in the utility model and rotating ring afterbody juxtaposition, and rotating ring O type circle is positioned at the step hole of rotating ring, thereby can make the axial dimension compactness of moving ring assembly short and small, reduce axial installation dimension requirement greatly pump chamber.
As a kind of improvement of the present utility model, described spring can be wavy spring.Be installed in the space very little bearing chamber or hole because wavy spring is suitable, therefore, the utility model is adopted as the axial dimension that wavy spring can make moving ring assembly with spring and becomes compact more short and small, thereby further reduces the axial installation dimension requirement to pump chamber.
Description of drawings
Accompanying drawing is the structural representation of the utility model mechanical seal.
Shown in the figure 1, stationary ring O type circle, 2, stationary ring, 3, rotating ring, 4, rotating ring O type circle, 5, mark closely screw, 6, axle, 7, spring seat, 8, spring, 9, driving pin, 10, pump chamber, 11, stop pin, 12, lock pin aperture, 13, the transmission pin-and-hole, 14, interior step hole.
Specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in drawings, in this specific embodiment, the utility model mechanical seal comprises static components and moving ring assembly; Static components comprises stationary ring 2, stationary ring O type circle 1 and stop pin 11; Described stationary ring O type circle and pump chamber 10 and stationary ring 2 equal interference fit; Described stationary ring 2 is provided with lock pin aperture 12; One end of described stop pin 11 is connected on the pump chamber 10, and its other end is positioned at lock pin aperture 12; The axial diameter of described lock pin aperture 12 is greater than the axial diameter of stop pin 11; Being provided with of stop pin 11 can effectively prevent stationary ring 2 when operation not follow-up ring 3 rotate together.Described moving ring assembly comprises rotating ring 3, rotating ring O type circle 4, spring seat 7, spring 8 and driving pin 9; Described spring seat 7 is fixed on the axle 6 by Cock screw 5; Non-working surface one end of described rotating ring 3 is provided with step hole 14 in; Described rotating ring O type circle 4 is positioned at step hole 14; Described rotating ring O type circle 4 is interference fit with rotating ring 3 and axle 6; Described rotating ring 3 afterbodys are provided with transmission pin-and-hole 13; The head of described spring seat 7 intersects with the afterbody of rotating ring 3, and in other words, some is positioned at the step hole 14 of rotating ring 3 head of described spring seat 7; One end of described driving pin 9 is fixed on spring seat 7 and is used for the head that intersects with rotating ring 3 afterbodys, and its other end is positioned at transmission pin-and-hole 13; The axial diameter of described transmission pin-and-hole 13 is greater than the axial diameter of driving pin 9, thereby assurance rotating ring 3 can move axially when doing the synchronous rotation of circumference with spring seat 7; Described spring 8 is adopted as wavy spring, wavy spring end and rotating ring 3 drive fits, its other end and spring seat 7 drive fits.
Claims (2)
1, a kind of mechanical seal, it comprises static components and the moving ring assembly of being made up of rotating ring (3), rotating ring O type circle (4), spring seat (7), spring (8) and driving pin (9), described spring seat (7) is connected on the axle (6) by Cock screw (5), it is characterized in that: non-working surface one end of described rotating ring (3) is provided with step hole (14) in; Described rotating ring O type circle (4) be positioned at step hole (14) and with the equal interference fit of rotating ring (3) and axle (6); Described rotating ring (3) afterbody is provided with transmission pin-and-hole (13); Described spring seat (7) head intersects with rotating ring (3) afterbody; One end of described driving pin (9) is fixed on spring seat (7) and is used for the head that intersects with rotating ring (3) afterbody, and its other end is positioned at transmission pin-and-hole (13); The axial diameter of described transmission pin-and-hole (13) is greater than the axial diameter of driving pin (9); Described spring (8) is connected between rotating ring (3) and the spring seat (7).
2, mechanical seal according to claim 1 is characterized in that: described spring (8) is a wavy spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201460878U CN201363421Y (en) | 2009-03-24 | 2009-03-24 | Mechanical sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201460878U CN201363421Y (en) | 2009-03-24 | 2009-03-24 | Mechanical sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201363421Y true CN201363421Y (en) | 2009-12-16 |
Family
ID=41474085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201460878U Expired - Fee Related CN201363421Y (en) | 2009-03-24 | 2009-03-24 | Mechanical sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201363421Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644750A (en) * | 2012-04-28 | 2012-08-22 | 大连华阳光大密封有限公司 | Anti-swing mechanical seal |
| CN107956878A (en) * | 2017-12-28 | 2018-04-24 | 温州市天成密封件制造有限公司 | Periphery wave V-shaped ring mechanical seal |
-
2009
- 2009-03-24 CN CNU2009201460878U patent/CN201363421Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644750A (en) * | 2012-04-28 | 2012-08-22 | 大连华阳光大密封有限公司 | Anti-swing mechanical seal |
| CN107956878A (en) * | 2017-12-28 | 2018-04-24 | 温州市天成密封件制造有限公司 | Periphery wave V-shaped ring mechanical seal |
| CN107956878B (en) * | 2017-12-28 | 2024-02-02 | 温州市天成密封件制造有限公司 | Peripheral wave-shaped sealing ring mechanical seal |
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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: 20091216 Termination date: 20140324 |
|
| DD01 | Delivery of document by public notice |
Addressee: Lou Hubin Document name: Notification of Termination of Patent Right |