CN206386478U - Mechanical seal with buffer structure - Google Patents
Mechanical seal with buffer structure Download PDFInfo
- Publication number
- CN206386478U CN206386478U CN201621439057.2U CN201621439057U CN206386478U CN 206386478 U CN206386478 U CN 206386478U CN 201621439057 U CN201621439057 U CN 201621439057U CN 206386478 U CN206386478 U CN 206386478U
- Authority
- CN
- China
- Prior art keywords
- throw
- out collar
- tenon
- stationary ring
- buffer structure
- 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 discloses a kind of mechanical seal with buffer structure, it includes axle sleeve, the rotating ring being fixedly installed on axle sleeve, the stationary ring being connected with rotating ring end face, the seal receptacle for installing stationary ring, slided in seal receptacle and be provided with throw-out collar, at least provided with two tenons on the throw-out collar end face, then cushion collar is covered on the tenon securely, at least provided with two projections on the throw-out collar excircle, guide groove is provided with the seal receptacle endoporus, the projection is corresponding with guide groove to be slidably connected；Tongue-and-groove is provided with the stationary ring end face, the tongue-and-groove is corresponding with tenon position, and spring base is provided with seal receptacle, the spring base is provided with spring with throw-out collar.The tenon and throw-out collar whole installation；The tenon is provided separately with throw-out collar, and tenon is fixedly connected on throw-out collar.Mechanical seal of the present utility model, not only has the advantages that starting-impact is small, and simple in construction, and service life is long.
Description
Technical field
The utility model is related to a kind of sealing structure, refers in particular to the improvement to cartridge mechanical seal.
Background technology
Mechanically-sealing apparatus is widely used in the equipment such as blower fan, pump, reactor, and end face seal is exactly a rotating ring with turning
Dynamic part rotates, and another is that stationary ring is fixed on stationary part, and two parts generally pass through stop pin axially in contact with sealing, stationary ring
Be fixedly connected on throw-out collar, stop pin can prevent because stationary ring with phantom ring rotate produce its it is cylindrical it is upper set by static seal damage
The phenomenon leaked, throw-out collar is then slidably connected to seal receptacle by set sliding pin thereon or other is fixedly connected with fuselage
On part, throw-out collar, which leans on the jack-up such as spring and then stationary ring end face is pressed on rotating ring end face all the time, serves stringent mechanical sealing work
With.In actual applications, rotating ring increases the friction torque of stationary ring with the size of seal face and becomes big, such stop pin work
When the torsion that is carried will become big, especially rotating ring start moment because stop pin be directly plugged on stationary ring set by connecting hole
In, then pin between hole with rigidity with directly being contacted, and now impact of the stop pin to stationary ring is can hardly be avoided under effect of inertia, and quiet
Under this greater impact power repeatedly effect fracture damage easily occurs for ring.Therefore it is this that week is carried out to stationary ring by stop pin
There is starting-impact greatly to the mode of restriction, stationary ring is fragile, the short defect of service life.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of mechanical seal with buffer structure, and it not only rises
Dynamic impact is small and simple in construction, and service life is long.
In order to solve the above technical problems, a kind of mechanical seal with buffer structure of the utility model, including it is axle sleeve, solid
Surely rotating ring, the stationary ring being connected with rotating ring end face, the seal receptacle of installation stationary ring being arranged on axle sleeve, slide in seal receptacle and set
There is throw-out collar, at least provided with two tenons on the throw-out collar end face, cover then cushion collar securely on the tenon, the throw-out collar excircle
On at least provided with two projections, be provided with guide groove in the seal receptacle endoporus, the projection is corresponding with guide groove to be slidably connected；Institute
State and be provided with tongue-and-groove on stationary ring end face, the tongue-and-groove is corresponding with tenon position, and spring base is provided with seal receptacle, the spring base with
Throw-out collar is provided with spring.
After said structure, the tenon of then cushion collar is covered due to being provided with throw-out collar end face, on stationary ring end face
Tongue-and-groove is provided with, and the tongue-and-groove is corresponding with tenon position, then allow the tenon for covering then cushion collar to insert each self-corresponding tongue-and-groove
In after, stationary ring is just connected as a single entity with throw-out collar, because feather joint with face contact form connect, then rotating ring to stationary ring apply friction torque
When, stationary ring is acted directly on cushion collar to the active force of throw-out collar, and cushion collar can directly absorb and weaken hair between mutually occlusion tenon face
The dynamics of raw working impact, is also greatly reduced while acting on stationary ring with the pressure on throw-out collar joint tongue face, between stationary ring and throw-out collar
Bearing capacity just corresponding enhancing, stationary ring is just not susceptible to fracture damage, with shock resistance good buffer effect, and bearing capacity is strong,
It is simple in construction, the advantage of service life length.Connected by the pairing of projection and guide groove, can make to be formed between throw-out collar and seal receptacle and slide
Pair, on the one hand the sliding pair serves carries out anti-rotation to throw-out collar, throw-out collar is axially being in art skating state,
It ensure that the axial force acted on throw-out collar can be directly delivered to seal face, it is firm to strengthen throw-out collar itself using arc projection
Property, it is ensured that throw-out collar is hardly damaged in actual use, with rational in infrastructure, the advantage of service life length；And on seal receptacle
Spring base is provided with, the spring set between spring base and throw-out collar is then served by throw-out collar to stationary ring and ring seal end
Impose certain pressure, it is ensured that the tightness of mechanical seal.
A kind of preferred embodiment of the present utility model, the cushion collar is polytetrafluoroethylene set, uses polytetrafluoroethylene set
Make cushion collar, then make use of polytetrafluoroethylene heatproof, anti-corrosion characteristic well, enable mechanical seal in high temperature and corrosivity ring
Worked in border, widened the use scope of mechanical seal, with heatproof, anti-corrosion, the advantage of shock resistance good buffer effect.
Another preferred embodiment of the present utility model, the tenon and throw-out collar whole installation；The tenon and throw-out collar
It is provided separately, tenon is fixedly connected on throw-out collar.Tenon is set into entirety or divided mode on throw-out collar can strengthen stationary ring
The connection rigidity of itself, it is ensured that stationary ring is still hardly damaged after by repeat impact, extends the service life of stationary ring, with holding
Loading capability is strong, simple in construction, the advantage of service life length.
Set projection is arc projection on another preferred embodiment of the present utility model, the throw-out collar excircle,
Set guide groove is arc guide barrel in seal receptacle endoporus；Set projection is rectangle projection, seal receptacle on the throw-out collar excircle
Set guide groove is rectangle guide groove in endoporus；O-ring seal is provided between the stationary ring and seal receptacle.Projection is set to arc
Projection or rectangular cam, are correspondingly set to arc guide barrel or rectangle guide groove by guide groove, during work throw-out collar can obtain larger
Anti-rotation torque, the application of O-ring seal then ensure that liquid will not be leaked in throw-out collar in container between stationary ring and seal receptacle.
Yet another preferred form of the present utility model, rotating ring and the stationary ring seal face has spliced wear-resistant block；
The wear-resistant block is made up of carborundum.Wear-resistant block is set in rotating ring and stationary ring seal face, this just changes rotating ring and stationary ring
Structure, i.e., make matrix by integrally becoming using high-abrasive material by rigid material, makees the combining structure of sealing surface by high-abrasive material,
The application of the combining structure not only saves material, and manufacture maintenance is very convenient, and enhances the durable of rotating ring and stationary ring
The service life of degree, extension rotating ring and stationary ring.The material for making rotating ring and stationary ring with carborundum has anti-wear performance excellent, durable in use
Effect.
Brief description of the drawings
The mechanical seal to the utility model with reference to the accompanying drawings and detailed description with buffer structure makees further
Describe in detail.
Fig. 1 is a kind of structural representation of the specific embodiment for the mechanical seal that the utility model has buffer structure；
Fig. 2 is the structural representation of throw-out collar in Fig. 1 embodiments；
Fig. 3 is the drawing in side sectional elevation of Fig. 2 throw-out collars；
Fig. 4 is the structural representation of seal receptacle in Fig. 1 embodiments；
Fig. 5 is the left view of Fig. 4 seal receptacles；
Fig. 6 is the structural representation of stationary ring in Fig. 1 embodiments.
In figure, 1- spring bases, 2- springs, 3- seal receptacles, 4- throw-out collars, 5-O types sealing ring, 6- tenons, 7-O types sealing ring,
8- stationary rings, 9- rotating rings, 10-O types sealing ring, 11- tongue-and-grooves, 12- axle sleeves, 13- water inlets, 14- casings, 15- guide grooves, 16- projections,
17- wear-resistant blocks, 18- delivery ports, 19- cushion collars.
Embodiment
In the mechanical seal with buffer structure shown in Fig. 1, axle sleeve 12 is rotatably arranged in casing 14, in axle sleeve 12
Right-hand member is tightly connected rotating ring 9 by O-ring seal 10, and wear-resistant block 17 is fixedly installed on the end face of rotating ring 9, with the end of rotating ring 9
The stationary ring 8 that face is tightly connected is arranged in seal receptacle 3 by the sealing of O-ring seal 7, has been uniformly arranged in the endoporus of seal receptacle 3
Three guide grooves 15, the seal receptacle 3 is mutually sealedly and fixedly connected by O-ring seal 5 with casing 14, and fixation is set on the end face of stationary ring 8
Wear-resistant block 17 is put, the material therefor of wear-resistant block 17 is carborundum, and three tenons have been uniformly arranged on the non-tight end end face of stationary ring 8
Groove 11, is connected in the left end of stationary ring 8 and sets throw-out collar 4, the throw-out collar 4, which is connected with stationary ring 8 on end face, has been uniformly arranged three tenons 6,
Fixed cover then cushion collar 19 on the tenon 6, the tenon 6 inserts connection by the button corresponding with tongue-and-groove 11 of cushion collar 19, because of feather joint
Connected with face contact form, then when rotating ring 9 applies friction torque to stationary ring 8, stationary ring 8 is acted directly on to the active force of throw-out collar 4
On cushion collar 19, cushion collar 19 can directly absorb and weaken the dynamics of generation working impact between mutually occlusion tenon face, act on simultaneously
Stationary ring 8 is also greatly reduced with the pressure on the joint tongue face of throw-out collar 4, the just corresponding enhancing of the bearing capacity between stationary ring 8 and throw-out collar 4, quiet
Ring 8 is just not susceptible to fracture damage, has reached shock resistance good buffer effect, and bearing capacity is strong, simple in construction, service life length
Implement purpose.Three projections 16 are uniformly arranged on the excircle of throw-out collar 4, the projection 16 is corresponding with guide groove 15 to be slidably connected,
The projection 16 is arc projection, and correspondingly guide groove 15 is arc guide barrel, and sliding pair is just formed between such throw-out collar 4 and seal receptacle 3, should
On the one hand sliding pair serves carries out anti-rotation to throw-out collar 4, throw-out collar 4 is axially being in art skating state, protects
Seal face can be directly delivered to by having demonstrate,proved the axial force acted on throw-out collar 4, and it is firm to strengthen throw-out collar 4 itself using arc projection 16
Property, it is ensured that throw-out collar 4 is hardly damaged in actual use, has equally reached rational in infrastructure, the implementation purpose of service life length.
Fig. 2 and Fig. 3 show the detailed construction of throw-out collar；Fig. 4 and Fig. 5 show the detailed construction of seal receptacle；Fig. 6 is shown
The concrete structure of stationary ring.
It is above-mentioned only to have enumerated a kind of preferred embodiment of the present utility model, but the utility model is not limited thereto,
In the case of the utility model general principle, the modifications and variations of many can also be made.Such as：Institute on the throw-out collar end face
Set tenon and the tongue-and-groove being arranged on stationary ring end face to be not only limited to three, can also be more than three；To institute on rotating ring and stationary ring
Set the selection of wear-resisting block of material to be also not only limited to carborundum, can also use the higher carbon fibre material of wearability or other anti-attritions
Material；Projection and the form of guide groove are not only limited to use arc or rectangle, the shapes such as triangle can be also used, and so on.
As long as any structure made on the basis of the utility model is close, intimate change is accordingly to be regarded as falling into the utility model
Protection domain.
Claims (9)
1. a kind of mechanical seal with buffer structure, including axle sleeve（12）, be fixedly installed on axle sleeve（12）On rotating ring（9）、
With rotating ring（9）The connected stationary ring of end face（8）, install stationary ring（8）Seal receptacle（3）, it is characterised in that：In seal receptacle（3）Interior cunning
It is dynamic to be provided with throw-out collar（4）, the throw-out collar（4）At least provided with two tenons on end face（6）, the tenon（6）On cover securely then
Cushion collar（19）, the throw-out collar（4）At least provided with two projections on excircle（16）, the seal receptacle（3）It is provided with endoporus
Guide groove（15）, the projection（16）With guide groove（15）It is corresponding to be slidably connected；The stationary ring（8）Tongue-and-groove is provided with end face（11）,
The tongue-and-groove（11）With tenon（6）Position correspondence, in seal receptacle（3）On be provided with spring base（1）, the spring base（1）With throw-out collar（4）
Between be provided with spring（2）.
2. the mechanical seal according to claim 1 with buffer structure, it is characterised in that：The cushion collar（19）It is poly-
Four fluorine ethylene sets.
3. the mechanical seal according to claim 1 with buffer structure, it is characterised in that：The tenon（6）With throw-out collar
（4）Whole installation.
4. the mechanical seal according to claim 1 with buffer structure, it is characterised in that：The tenon（6）With throw-out collar
（4）It is provided separately, tenon（6）It is fixedly connected on throw-out collar（4）On.
5. the mechanical seal according to claim 1 with buffer structure, it is characterised in that：The throw-out collar（4）Excircle
Upper set projection（16）For arc projection, seal receptacle（3）Set guide groove in endoporus（15）For arc guide barrel.
6. the mechanical seal according to claim 1 with buffer structure, it is characterised in that：The throw-out collar（4）Excircle
Upper set projection（16）For rectangle projection, seal receptacle（3）Set guide groove in endoporus（15）For rectangle guide groove.
7. the mechanical seal according to claim 1 with buffer structure, it is characterised in that：The stationary ring（8）With sealing
Seat（3）Between be provided with O-ring seal（7）.
8. the mechanical seal according to claim 1 with buffer structure, it is characterised in that：Rotating ring and the stationary ring sealing
End face has spliced wear-resistant block（17）.
9. the mechanical seal according to claim 8 with buffer structure, it is characterised in that：The wear-resistant block is by carborundum
It is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621439057.2U CN206386478U (en) | 2016-12-26 | 2016-12-26 | Mechanical seal with buffer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621439057.2U CN206386478U (en) | 2016-12-26 | 2016-12-26 | Mechanical seal with buffer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206386478U true CN206386478U (en) | 2017-08-08 |
Family
ID=59491295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621439057.2U Expired - Fee Related CN206386478U (en) | 2016-12-26 | 2016-12-26 | Mechanical seal with buffer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206386478U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023098563A1 (en) * | 2021-12-03 | 2023-06-08 | 华为数字能源技术有限公司 | Mechanical sealing device, fluid mechanical apparatus and mechanical sealing method |
-
2016
- 2016-12-26 CN CN201621439057.2U patent/CN206386478U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023098563A1 (en) * | 2021-12-03 | 2023-06-08 | 华为数字能源技术有限公司 | Mechanical sealing device, fluid mechanical apparatus and mechanical sealing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170808 Termination date: 20181226 |