CN208107163U - Mechanical seal - Google Patents
Mechanical seal Download PDFInfo
- Publication number
- CN208107163U CN208107163U CN201820380951.XU CN201820380951U CN208107163U CN 208107163 U CN208107163 U CN 208107163U CN 201820380951 U CN201820380951 U CN 201820380951U CN 208107163 U CN208107163 U CN 208107163U
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- China
- Prior art keywords
- collar
- rotating
- rotating seat
- ring
- drive sleeve
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Abstract
The utility model discloses a kind of mechanical seals, and including the static components matched and moving ring assembly, static components include stationary seat and stationary ring；Moving ring assembly includes the rotating seat being coaxially set, rotating ring, rubber bellows, it is driven card, collar, spring and drive sleeve, rotating ring is fixed in rotating seat by location structure, one end of rubber bellows is pressed in rotating seat by rotating ring, interference is arranged collar outside the other end of rubber bellows, card is driven to be set between collar and rotating seat, spring is loaded in drive sleeve, and both ends offset with drive sleeve and transmission card respectively, transmission card periphery is arranged at intervals with several card slots, drive sleeve outer peripheral edge is equipped with several hooks that cooperation is corresponded with several card slots, the pump shaft hole for being suitable for matching with pump shaft so that drive sleeve and pump shaft rotate synchronously is formed in drive sleeve.Structurally reasonable, the cost performance height of mechanical seal in the utility model, it is easy for installation, there is good leakproofness when installing and using.
Description
Technical field
The utility model relates to a kind of mechanical seals, belong to seal configuration design field.
Background technique
A kind of mechanical sealing structure for pump is disclosed in patent document CN203627292U comprising be set on the shaft
Rubber bellows, the rubber bellows are provided with annular groove close to one end of pump cover, and the annular groove is embedded with rotating ring, described
Position on the outside of rubber bellows by two close end is also respectively formed with step, and preceding spring base is respectively arranged on the step with after
Spring base is located at the position between the preceding spring base and rear spring seat outside the rubber bellows and is set with to before described
Spring base and rear spring seat apply the spring of elastic force；Stationary ring is provided in the pump cover, between the stationary ring and the pump cover
It is provided with radial seal, the rotating ring includes the circular body portion in the annular groove and connects with the main part
And the diminishing tapering of size, the tapering are resisted against on the stationary ring.The problem of above patent document is shaft
Spring base and preceding bullet before the torsion that (pump shaft being equivalent in the application) fully relies on rubber bellows generation in rotation drives
Rotating ring rotation on spring abutment, this causes rubber bellows to be easy to be twisted off and then leads to seal failure, influences sealing performance.
Utility model content
In this regard, the utility model is intended to provide a kind of structurally reasonable mechanical seal, which has close well
Effect is sealed, and moving ring assembly is easy for installation.
Realizing the technical solution of the utility model aim is：
A kind of mechanical seal, including the static components matched and moving ring assembly, the static components include stationary seat and
Stationary ring in the stationary seat；The moving ring assembly includes the rotating seat being coaxially set, rotating ring, rubber bellows, biography
Dynamic card, collar, spring and drive sleeve, the rotating ring are fixed in the rotating seat by location structure, and the rotating ring is by institute
The one end for stating rubber bellows is pressed in the rotating seat, and interference is arranged described tight outside the other end of the rubber bellows
Circle, the rubber corrugated tube end have the annular convex platform for preventing collar to be detached from from rubber bellows, and the transmission card is set
Between the collar and the rotating seat, and limited by position limiting structure can only be relative to for the collar and the transmission card
The rotating seat is axially moveable and cannot circumferentially rotate, the spring loaded in the drive sleeve, and both ends respectively with it is described
Drive sleeve and the transmission card offset, and the transmission card periphery is arranged at intervals with several card slots, the drive sleeve outer peripheral edge
Equipped with several hooks for corresponding cooperation with several card slots, having to match with the pump shaft in the drive sleeve makes to pass
Dynamic set keeps the pump shaft hole rotated synchronously with the pump shaft.
In above-mentioned technical proposal, the location structure include the positioning convex platform taken shape on the rotating seat inner sidewall, at
Type is in the rotating ring periphery suitable for the locating slot that matches with the positioning convex platform and set on the rotating seat edge
Positive stop lug boss, the positioning convex platform enables the rotating seat to rotate synchronously with the rotating ring with locating slot cooperation, described
Positive stop lug boss is inwardly projecting and is pressed on the rotating ring, to prevent from deviating from the driven ring seat of the rotating ring.
In above-mentioned technical proposal, the position limiting structure includes be evenly distributed setting taken shape on the rotating seat
One axial lug and the second axial lug take shape in the be suitable for the first axis tab cooperation on the transmission card
One limiting slot and take shape in the collar suitable for the second limiting slot for cooperating with second axial lug, described
One axial lug and first limiting slot cooperation and second axial lug and second limiting slot cooperation make described tight
Circle and the transmission card can only be axially moveable relative to the rotating seat and cannot circumferentially rotate.
In above-mentioned technical proposal, the annular nib outwardly protruded, second limit are formed on the collar bottom margin
Position Slot shaping is on the annular nib.
In above-mentioned technical proposal, the hook is T-shaped or L shape.
In above-mentioned technical proposal, the shape in the pump shaft hole is closed geometry figure at least with a straight line, described
The cross sectional shape for matching position with pump shaft hole on pump shaft is closed geometry figure at least with a straight line.
In above-mentioned technical proposal, the closed geometry figure is semicircle or polygon.
The utility model has the effect of positive：Mechanical seal is structurally reasonable in the utility model, in the utility model
For the moving ring assembly assembled when installing and using, pump shaft rotation can ensure that all component parts of moving ring assembly all keep same
Step rotation, avoids rubber bellows from being twisted off, and guarantees the validity of sealing；In addition, moving ring assembly is assembled into one in a pre-installation
It is whole, then which can be realized on pump shaft to the installation of moving ring assembly, pacify compared to the prior art
The multiple components for constituting moving ring assembly are sleeved on one by one on pump shaft when filling moving ring assembly and are compared, can be improved installation effectiveness.
Detailed description of the invention
Fig. 1 is the cross-sectional view of mechanical seal in the utility model；
Fig. 2 is the schematic perspective view of rotating seat shown in Fig. 1；
Fig. 3 is the structural schematic diagram from another angle when rotating seat shown in Fig. 2；
Fig. 4 is a kind of positive direction view of rotating seat shown in Fig. 2；
Fig. 5 is a kind of positive direction view of rotating ring in the utility model；
Fig. 6 is a kind of positive direction view that card is driven in the utility model；
Fig. 7 is the left side view of transmission card shown in Fig. 6；
Fig. 8 is the top view of the drive sleeve of the first structure in the utility model；
Fig. 9 is the top view of drive sleeve shown in Fig. 8；
Figure 10 is the positive direction view of collar in the utility model；
Figure 11 is the perspective view of collar shown in Figure 10；
Figure 12 is the top view of the drive sleeve of second of structure in the utility model；
Figure 13 is the top view of the drive sleeve of the third structure in the utility model.
Appended drawing reference is as shown in the figure：1- static components；11- stationary seat；12- stationary ring；2- moving ring assembly；21- rotating seat；
211- positioning convex platform；212- positive stop lug boss；213- first axis lug；The second axial lug of 214-；22- rotating ring；221- positioning
Slot；23- rubber bellows；231- annular convex platform；24- is driven card；241- card slot；The first limiting slot of 242-；25- collar；
The second limiting slot of 251-；252- annular nib；26- spring；27- drive sleeve；271- pump shaft hole；272- hook；3- pump shaft.
Specific embodiment
The specific structure in the utility model is done with explanation with reference to the accompanying drawings of the specification：
A kind of mechanical seal, as shown in Figure 1 to 11 comprising the static components 1 and moving ring assembly 2 matched, it is described
Static components 1 include stationary seat 11 and the stationary ring 12 in the stationary seat 11；The moving ring assembly 2 includes being coaxially set
Rotating seat 21, rotating ring 22, rubber bellows 23, transmission card 24, collar 25, spring 26 and drive sleeve 27, the rotating ring 22
It is fixed in the rotating seat 21 by location structure, one end of the rubber bellows 23 is pressed on described by the rotating ring 22
In rotating seat 21, interference is arranged with collar 25,23 end of rubber bellows outside the other end of the rubber bellows 23
With the annular convex platform 231 for preventing collar 25 to be detached from from rubber bellows 23, the transmission card 24 is set to the collar 25
Between the rotating seat 21, and limited by position limiting structure can only be relative to described for the collar 25 and the transmission card 24
Rotating seat 21 is axially moveable and cannot circumferentially rotate, the spring 26 loaded in the drive sleeve 27, and both ends respectively with institute
It states drive sleeve 27 and the transmission card 24 offsets, 24 periphery of transmission card is arranged at intervals with several card slots 241, the biography
27 outer peripheral edges of dynamic set are equipped with several hooks 272 that cooperation is corresponded with several card slots 241, have in the drive sleeve 27
Matching with the pump shaft 3 makes drive sleeve 27 and the pump shaft 3 keep the pump shaft hole 271 rotated synchronously.Machine in the present embodiment
When tool sealing installation, static components 1 and moving ring assembly 2 are assembled respectively first, then static components 1 are sleeved on pump shaft 3
And position in the caulking groove of pump body end surface, moving ring assembly 2 is sleeved on pump shaft 3, under the elastic force effect of spring 26 rotating ring 22 with
Stationary ring 12 is in close contact always to realizing sealing, and when installing moving ring assembly 2,2 sets of assembled entire moving ring assembly is existed
On pump shaft 3,23 rear end of rubber bellows holds pump shaft 3 tightly by the interference fit of collar 25, realizes rubber bellows 23 and pump shaft 3
Between sealing, 23 front end of rubber bellows is pressed on rotating seat 21 by rotating ring 22, realizes rotating seat 21, rubber bellows 23
With the sealing between rotating ring 22.For the moving ring assembly 2 assembled in the utility model when installing and using, the rotation of pump shaft 3 can
Ensure that all component parts of moving ring assembly 2 all keep rotating synchronously, rubber bellows 23 is avoided to be twisted off, guarantees having for sealing
Effect property；In addition, in a pre-installation assembling moving ring assembly 2 integral, pump shaft is firmly then sleeved on by the moving ring assembly 2 is whole
The installation of moving ring assembly 2 can be realized on 3, the more of moving ring assembly 2 will be constituted when moving ring assembly 3 is installed compared to the prior art
A component is sleeved on pump shaft 3 one by one and compares, and can be improved installation effectiveness.
In the present embodiment, the location structure include the positioning convex platform 211 taken shape on 21 inner sidewall of rotating seat, at
Type suitable for the locating slot 221 that matches with the positioning convex platform 211 and is set to the rotating seat in 22 periphery of rotating ring
The positive stop lug boss 212 of 21 edges, the cooperation of the positioning convex platform 211 and the locating slot 221 make the rotating seat 21 with it is described
Rotating ring 22 can rotate synchronously, and the positive stop lug boss 212 is inwardly projecting and is pressed on the rotating ring 22, to prevent the rotating ring
Rotating ring 22, so connect by abjection in 22 driven ring seats 21 with rotating seat 21, not only can guarantee that the two rotates synchronously, but also be avoided that dynamic
The separation of the driven ring seat 21 of ring 22, is convenient for subsequent installation.
In the present embodiment, the position limiting structure includes be evenly distributed setting first taken shape on the rotating seat 21
Axial lug 213 and the second axial lug 214, take shape on the transmission card 24 be suitable for and the first axis lug
213 cooperation the first limiting slots 242 and take shape in the collar 25 be suitable for and second axial lug 214 cooperate
The second limiting slot 251, the first axis lug 213 cooperates with first limiting slot 242 and second axial lug
214 make the collar 25 and the transmission card 24 can only be relative to the rotating seat 21 with second limiting slot 251 cooperation
It is axially moveable and cannot circumferentially rotate.Further, the convex annular outwardly protruded is formed on 25 bottom margin of collar
Side 252, second limiting slot 251 is molded on the annular nib 252, and after being completed, the annular nib 252 is ridden over
It is driven the inward flange of card 24, to limiting transmission card 24 between collar 25 and rotating seat 21.
The hook 272 in the present embodiment be it is T-shaped, hook 272 described in practical operation is also possible to L shape.
In the present embodiment, the shape in the pump shaft hole 271 is closed geometry figure at least with a straight line, corresponding
, it is the closed geometry figure at least with a straight line with the cross sectional shape that pump shaft hole matches position on the pump shaft 3, into
One step, the closed geometry figure are semicircle or polygon, referring specifically to shown in Fig. 8 and Figure 12, by using above-mentioned design,
Pump shaft 3 is connect to can ensure that when pump shaft 3 rotates and drive sleeve 27 is driven to rotate synchronously with drive sleeve 27.Institute in practical operation
The shape for stating pump shaft hole in drive sleeve can also be made into shape shown in Figure 13.
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.And the obvious changes or variations that these connotations for belonging to the utility model are extended out still fall within it is practical
Novel protection scope.
Claims (7)
1. a kind of mechanical seal, including the static components (1) matched and moving ring assembly (2), the static components (1) include quiet
Ring seat (11) and the stationary ring (12) in the stationary seat (11)；It is characterized in that：The moving ring assembly (2) includes coaxial line
Rotating seat (21), rotating ring (22), rubber bellows (23), transmission card (24), collar (25), spring (26) and the transmission of setting
It covers (27), it is interior that the rotating ring (22) by location structure is fixed on the rotating seat (21), and the rotating ring (22) is by the rubber
One end of bellows (23) is pressed in the rotating seat (21), and interference is arranged outside the other end of the rubber bellows (23)
The collar (25), rubber bellows (23) end have the ring for preventing collar (25) to be detached from from rubber bellows (23)
Shape boss (231), the transmission card (24) is set between the collar (25) and the rotating seat (21), and the collar
(25) and the transmission card (24) is limited by position limiting structure can only be axially moveable relative to the rotating seat (21) and cannot
Circumferentially rotate, the spring (26) loaded in the drive sleeve (27), and both ends respectively with the drive sleeve (27) and the biography
Dynamic card (24) offset, and transmission card (24) periphery is arranged at intervals with several card slots (241), drive sleeve (27) periphery
Edge is equipped with several hooks (272) that cooperation is corresponded with several card slots (241), has and pump on the drive sleeve (27)
Axis (3), which matches, makes drive sleeve (27) and the pump shaft (3) to keep the pump shaft hole (271) rotated synchronously.
2. mechanical seal according to claim 1, it is characterised in that：The location structure includes taking shape in the rotating seat
(21) positioning convex platform on inner sidewall (211), take shape in the rotating ring (22) periphery be suitable for and the positioning convex platform (211) phase
The locating slot (221) of cooperation and the positive stop lug boss (212) for being set to the rotating seat (21) edge, the positioning convex platform
(211) it rotate synchronously the rotating seat (21) can with the rotating ring (22) with the locating slot (221) cooperation, the limit
Boss (212) is inwardly projecting and is pressed on the rotating ring (22), to prevent abjection in the rotating ring (22) driven ring seat (21).
3. mechanical seal according to claim 1, it is characterised in that：The position limiting structure includes taking shape in the rotating seat
(21) the first axis lug (213) for being evenly distributed setting and the second axial lug (214) on take shape in the transmission card
On piece (24) suitable for the first limiting slot (242) for cooperating with the first axis lug (213) and take shape in the collar
(25) on suitable for the second limiting slot (251) for cooperating with second axial lug (214), the first axis lug
(213) match with first limiting slot (242) cooperation and second axial lug (214) with second limiting slot (251)
Conjunction make the collar (25) and the transmission card (24) can only be axially moveable relative to the rotating seat (21) and cannot week
To rotation.
4. mechanical seal according to claim 3, it is characterised in that：It is formed on collar (25) bottom margin outward
The annular nib (252) of protrusion, second limiting slot (251) are molded on the annular nib (252).
5. mechanical seal according to claim 1, it is characterised in that：The hook (272) is T-shaped or L shape.
6. mechanical seal according to claim 1, it is characterised in that：The shape of the pump shaft hole (271) is at least to have
The closed geometry figure of one straight line, corresponding, the cross sectional shape for matching position with pump shaft hole on the pump shaft (3) is at least
Closed geometry figure with a straight line.
7. mechanical seal according to claim 6, it is characterised in that：The closed geometry figure is semicircle or polygon
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820380951.XU CN208107163U (en) | 2018-03-20 | 2018-03-20 | Mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820380951.XU CN208107163U (en) | 2018-03-20 | 2018-03-20 | Mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208107163U true CN208107163U (en) | 2018-11-16 |
Family
ID=64121538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820380951.XU Active CN208107163U (en) | 2018-03-20 | 2018-03-20 | Mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208107163U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278368A (en) * | 2018-03-20 | 2018-07-13 | 浙江天鹰机械密封件有限公司 | Mechanical seal |
| CN115818147A (en) * | 2023-02-20 | 2023-03-21 | 湖南新威凌金属新材料科技股份有限公司 | Movable stocker for zinc powder coating production |
-
2018
- 2018-03-20 CN CN201820380951.XU patent/CN208107163U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278368A (en) * | 2018-03-20 | 2018-07-13 | 浙江天鹰机械密封件有限公司 | Mechanical seal |
| CN115818147A (en) * | 2023-02-20 | 2023-03-21 | 湖南新威凌金属新材料科技股份有限公司 | Movable stocker for zinc powder coating production |
| CN115818147B (en) * | 2023-02-20 | 2023-05-02 | 湖南新威凌金属新材料科技股份有限公司 | A portable accumulator for zinc powder coating production |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 317300 Yongan industrial cluster, Xianju County, Taizhou City, Zhejiang Province Patentee after: Zhejiang Tianying mechanical seal Co.,Ltd. Address before: 317300 Yongan Industrial Agglomeration Area, Xianju County, Taizhou City, Zhejiang Province Patentee before: ZHEJIANG TIANYING MECHANICAL SEALS Co.,Ltd. |