CN201363425Y - Mechanical sealing - Google Patents
Mechanical sealing Download PDFInfo
- Publication number
- CN201363425Y CN201363425Y CNU2009201460882U CN200920146088U CN201363425Y CN 201363425 Y CN201363425 Y CN 201363425Y CN U2009201460882 U CNU2009201460882 U CN U2009201460882U CN 200920146088 U CN200920146088 U CN 200920146088U CN 201363425 Y CN201363425 Y CN 201363425Y
- Authority
- CN
- China
- Prior art keywords
- ring
- spring seat
- spring
- step hole
- moving ring
- 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
Links
Images
Landscapes
- Mechanical Sealing (AREA)
- Details Of Reciprocating Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The utility model discloses a mechanical sealing, comprising a moving ring (4), a sealing ring (13). a plurality of small springs (10) and a spring seat (8), wherein the right end of the moving ring (4) is provided with an inner step hole I (14), the two ends of the small springs (10) are respectively butted between a spring cushion (12) and the spring seat (8), and the spring seat (8) is connected with a shaft (9); the outer circle surface of the moving ring (4) is provided with an axial groove (6); the right end of the moving ring (4) is positioned in an inner step hole II (15) of the spring seat (8); the sealing ring (13) of the moving ring is positioned in the inner step hole I (14) and is in interference fit with the shaft (9) and the moving ring (4); the inner step hole II (15) of the spring seat (8) is internally provided with an inner convex lug (7) which is matched with the axial groove (6) in a transmission mode; and the spring seat (8) is provided with spring holes (11) for placing the small springs (10). The mechanical sealing can lead the axial size of a moving ring component to be compact and shortened, thus greatly reducing the size requirement of the moving ring component to axial installation of a pump cavity.
Description
Technical field:
The utility model relate to a kind of be applicable to petroleum product, chemical industry solvent, in mechanical seal in the pump of the acids of weak corrosion or other suitable medium.
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 seal ring; Described moving ring assembly comprises rotating ring, rotating seat, bracing ring, bellows, spring, spring seat and fastening ring; Described rotating ring is contained in the rotating seat; The working surface of described rotating ring and the working surface of stationary ring are fitted; Described bracing ring is enclosed within the neck of bellows; The afterbody of described bellows 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.There is a deficiency in actual applications in the mechanical seal of said structure: promptly owing to not only be provided with bellows between rotating ring and the spring seat, and has certain axial distance between bellows and the spring seat again, therefore, the axial dimension of moving ring assembly is bigger in this mechanical seal, thereby has improved the requirement of moving ring assembly to the axial installation dimension of pump chamber greatly.
The model utility content:
The technical problems to be solved in the utility model is to provide a kind of axial dimension of moving ring assembly that can make to become compact short and small, thereby reduce the mechanical seal of moving ring assembly to the axial installation dimension requirement of pump chamber greatly.
Technical solution of the present utility model is, a kind of mechanical seal with following structure is provided, and it comprises the moving ring assembly of being made up of rotating ring, seal ring of moving ring, a plurality of little spring, spring seat and spring pad; Described spring seat is connected on the axle by Cock screw; Described spring pad and rotating ring right-hand member are close to; Described rotating ring right-hand member is provided with interior step hole I; Described rotating ring outer round surface is provided with axial notch; Described rotating ring right-hand member is positioned at the step hole II of spring seat; Described seal ring of moving ring be positioned at step hole I and with axle and rotating ring interference fit simultaneously; Be provided with the internal lobes that cooperates with the axial notch transmission in the interior step hole II of described spring seat; Described spring seat is provided with a plurality of spring eyes that are used for placing little spring; Described little spring two ends withstand on respectively between spring pad and the spring seat.
After adopting above 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 mechanical seal, the utility model is under the situation that does not need bellows, make described rotating ring right-hand member be positioned at the step hole II of spring seat, making described seal ring of moving ring is to be positioned at step hole I, in other words, some is a juxtaposition between rotating ring and the spring seat, the mode of this juxtaposition has reduced the axial dimension of moving ring assembly greatly, make the axial dimension of moving ring assembly become compact more short and small, thereby just reduce the axial installation dimension requirement of moving ring assembly greatly pump chamber.
As a kind of improvement of the present utility model, the utility model also can comprise a collar; Described collar tightly supports in the sulculus on the step hole II left side in being located at spring seat; Described collar is enclosed within on the rotating ring; Described rotating ring cylindrical is provided with a step that cooperates with described collar.Being provided with of collar can prevent that effectively stop ring comes off from spring seat.
Description of drawings:
Accompanying drawing is the structural representation of the utility model mechanical seal device.
Stationary ring seal ring as shown in the figure, 1, the pump housing, 2,, 3, stationary ring, 4, rotating ring, 5, collar, 6, axial notch, 7, internal lobes, 8, spring seat, 9, axle, 10, little spring, 11, spring eye, 12, spring pad, 13, seal ring of moving ring, 14, interior step hole I, 15, interior step hole II, 16, Cock screw, 17, step.
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; Described static components comprises stationary ring 3 and stationary ring seal ring 2; Described stationary ring seal ring 2 is interference fit with stationary ring 3 steps and the pump housing 1; Described moving ring assembly comprises rotating ring 4, seal ring of moving ring 13, a plurality of little spring 10, spring seat 8, collar 5 and spring pad 12; Described spring seat 8 is connected on the axle 9 by Cock screw 16; Described spring pad 12 is close to rotating ring 4 right-hand members; Described rotating ring 4 right-hand members are provided with interior step hole I 14; Described rotating ring 4 outer round surface are provided with axial notch 6; Described rotating ring 4 right-hand members are positioned at the step hole II 15 of spring seat 8; Described seal ring of moving ring 13 be positioned at step hole I 14 and with axle 9 and rotating ring 4 interference fit simultaneously; Be provided with the internal lobes 7 that cooperates with axial notch 6 transmissions in the interior step hole II 15 of described spring seat 8; Described spring seat 8 is provided with a plurality of spring eyes 11 that are used for placing little spring 10; Described little spring 10 two ends withstand on respectively between spring pad 12 and the spring seat 8; Described collar 5 tightly supports in the sulculus on step hole II 15 left sides in being located at spring seat 8; Described collar 5 is enclosed within on the rotating ring 4; Described rotating ring 4 cylindricals are provided with a step 17 that cooperates with described collar 5, because collar 5 has blocked rotating ring 4 by step 17, described rotating ring 4 can not come off from spring seat 8.
Claims (2)
1, a kind of mechanical seal, it comprises the moving ring assembly of being made up of rotating ring (4), seal ring of moving ring (13) and spring seat (8); Described spring seat (8) is connected on the axle (9) by Cock screw (16), and it is characterized in that: it also comprises a plurality of little springs (10) and the spring pad of being close to rotating ring (4) right-hand member (12); Described rotating ring (4) right-hand member is provided with interior step hole I (14); Described rotating ring (4) outer round surface is provided with axial notch (6); Described rotating ring (4) right-hand member is positioned at the step hole II (15) of spring seat (8); Described seal ring of moving ring (13) be positioned at step hole I (14) and with axle (9) and rotating ring (4) interference fit simultaneously; Be provided with the internal lobes (7) that cooperates with axial notch (6) transmission in the interior step hole II (15) of described spring seat (8); Described spring seat (8) is provided with a plurality of spring eyes (11) that are used for placing little spring (10); Described little spring (10) two ends withstand on respectively between spring pad (12) and the spring seat (8).
2, mechanical seal according to claim 1 is characterized in that: it also comprises a collar (5); Described collar (5) tightly supports in the sulculus on step hole II (15) left side in being located at spring seat (8); Described collar (5) is enclosed within on the rotating ring (4); Described rotating ring (4) cylindrical is provided with a step (17) that cooperates with described collar (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201460882U CN201363425Y (en) | 2009-03-24 | 2009-03-24 | Mechanical sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201460882U CN201363425Y (en) | 2009-03-24 | 2009-03-24 | Mechanical sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201363425Y true CN201363425Y (en) | 2009-12-16 |
Family
ID=41474089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201460882U Expired - Fee Related CN201363425Y (en) | 2009-03-24 | 2009-03-24 | Mechanical sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201363425Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359595A (en) * | 2011-09-19 | 2012-02-22 | 宁波东联密封件有限公司 | Mechanical seal for agitated reactor stirring shaft |
-
2009
- 2009-03-24 CN CNU2009201460882U patent/CN201363425Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359595A (en) * | 2011-09-19 | 2012-02-22 | 宁波东联密封件有限公司 | Mechanical seal for agitated reactor stirring shaft |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102252120B (en) | Heat exchange device, and electrically operated valve thereof | |
| CN103244327B (en) | Supply pump | |
| KR101846214B1 (en) | Fluid pressure cylinder | |
| CN201427038Y (en) | Mechanical seal used for mixer of absorption tower | |
| CN201363425Y (en) | Mechanical sealing | |
| CN201221492Y (en) | Double-end face mechanical seal device | |
| CN205136653U (en) | High frequency fast switch ball valve | |
| CN201363421Y (en) | Mechanical sealing | |
| CN205605672U (en) | Integral key shaft axial positioning structure | |
| CN201196263Y (en) | Mechanical sealing device | |
| CN201193704Y (en) | Mechanical sealing device | |
| CN103089877A (en) | Fixing and connecting structure of tension and pressure spring | |
| CN201836391U (en) | Single-end face integrated connecting mechanism | |
| CN102678932B (en) | Double mechanical seal without accessory system | |
| CN202045484U (en) | Short-stroke high-pressure cylinder device for realizing press fit of conical surfaces | |
| JP5903845B2 (en) | solenoid valve | |
| CN201810364U (en) | Inserted-connection liquid conveying device | |
| CN202531845U (en) | Bellows type mechanical seal for large-shaft-diameter vacuum kettle | |
| CN204573102U (en) | Be applicable to the mechanical seal of thin film evaporator | |
| CN113324053B (en) | Gear shifting booster | |
| CN205173086U (en) | Pressurization control mechanism of die casting machine | |
| CN219509931U (en) | Double-rod-outlet oil cylinder with floating connection of piston rods | |
| CN204801875U (en) | Auto steering ware valve barrel backlash compensation mechanism | |
| CN210715937U (en) | Pressure-bearing type dynamic shaft sealing device | |
| CN201875136U (en) | Hydraulic sealing device |
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 |