CN206786010U - A kind of rotary seal structure - Google Patents
A kind of rotary seal structure Download PDFInfo
- Publication number
- CN206786010U CN206786010U CN201720626167.8U CN201720626167U CN206786010U CN 206786010 U CN206786010 U CN 206786010U CN 201720626167 U CN201720626167 U CN 201720626167U CN 206786010 U CN206786010 U CN 206786010U
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- CN
- China
- Prior art keywords
- seal
- fitting recess
- receptacle
- elastomer
- sealing shroud
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Abstract
The utility model discloses a kind of rotary seal structure, including sealing shroud, seal receptacle, elastomeric seal；Sealing shroud is sleeve-shaped, and one end is arranged on one end of seal receptacle by bearing；The elastomer fitting recess of two ring-types is sequentially provided with the inwall of seal receptacle；Elastomeric seal is two, annularly, respectively corresponding to extruding insertion in elastomer fitting recess；Stop-leak compound is coated between elastomeric seal and elastomer fitting recess.The device that both sides are rotated against is fixedly mounted by seal receptacle and sealing shroud respectively for the utility model, carries out the sealing of rotating device：Dynamic sealing can be effectively realized on sealing shroud using the embedded elastomeric seal of extruding and stop-leak compound, and direct friction and the loss of countershaft can be reduced；Simultaneously using the stop-leak compound smeared between elastomeric seal and elastomer fitting recess, sealing property is further improved.
Description
Technical field
The utility model is more particularly to a kind of structure for carrying out rotatory sealing.
Background technology
Current all kinds of operating mechanical structures widely use rotational structure, especially also require that rotational structure will in many occasions
Two-way sealability, i.e. side sealing liquid are realized, opposite side being capable of sealing gas.Current many rotary seal structures are all
It is difficult to really realize zero leakage.
In the patent of invention authorized（201610136150.4）Patent document in disclose it is a kind of can two way seal
Rotary seal structure, in the technical scheme, lip and axle made of polytetrafluoroethylmaterial material in the liquid medium of mesohigh
Sealing wear aggravates, and frictional heating is serious, and service life is short.Especially for the sealing of large-diameter, the program is it is difficult to ensure that long
The requirement of the zero leakage of time.Heat is produced in friction process in order to control, reduces the abrasion to encapsulant and matrix
Aggravation, this just needs innovation structure, increases new sealing means, and can control heat, extends the use of encapsulant.
The content of the invention
The purpose of this utility model is to solve defect present in prior art, there is provided one kind can effectively realize rotation
Turn the new sealing structure of sealing.
In order to achieve the above object, the utility model provides a kind of rotary seal structure, including sealing shroud, seal receptacle,
Elastomeric seal；Sealing shroud is sleeve-shaped, and one end is arranged on one end of seal receptacle by bearing；At the inwall of seal receptacle successively
Elastomer fitting recess provided with two ring-types；Elastomeric seal is two, annularly, extrudes elastomer corresponding to insertion respectively
In fitting recess；Stop-leak compound is coated between elastomeric seal and elastomer fitting recess.It is solid respectively by seal receptacle and sealing shroud
The device that Dingan County dress both sides are rotated against, carries out the sealing of rotating device：Existed using the embedded elastomeric seal of extruding
Dynamic sealing can be effectively realized on sealing shroud, and countershaft can be reduced（It can be fixedly connected using sealing shroud）Directly rub
Wipe, produce loss；Simultaneously using the stop-leak compound smeared between elastomeric seal and elastomer fitting recess, sealing is further improved
Performance.
At the inwall of seal receptacle, seal groove is provided between above-mentioned two elastomer fitting recess；The elastomeric seal with
Sealing shroud is interference fitted；Described two elastomeric seals are by between the elastomer fitting recess, seal groove and sealing shroud of seal receptacle
Clearance channel surround into annular seal space；The full stop-leak compound of filling in annular seal space.The elastomer at annular seal space combination both ends so that stop-leak compound
Centre is sealed in, the sealing performance of stop-leak compound is fully played, and stop-leak compound makes elastomer subtract with sealing shroud frictional dissipation
It is small.
Packing groove is provided with the other end inwall of seal receptacle；At the inwall of seal receptacle since one end away from bearing successively
Provided with above-mentioned packing groove, elastomer fitting recess, seal groove, elastomer fitting recess；Rotary seal structure also includes airtight and watertight padding；
Airtight and watertight padding is ring-type, in embedded packing groove；It is interference fitted between airtight and watertight padding and sealing shroud.On the inwall of seal receptacle, filler
It is step surface between groove and elastomer fitting recess, the internal diameter that seal receptacle is located at packing groove one end is big, positioned at elastomer fitting recess one
The internal diameter at end is small.By assemble front end airtight and watertight padding combination seal receptacle step surface to silt in liquid medium or other miscellaneous
Matter is obstructed, and is avoided the influence to elastomer and stop-leak compound, is further enhanced dynamic sealing performance.
Elastomeric seal uses O-ring, and compression ratio is 3% ~ 8%.Assembling is embedded in by the extruding of best mode, reach compared with
Good rotatory sealing effect.
The longitudinal section of elastomer fitting recess is isosceles trapezoid, and trapezoidal hypotenuse is not more than 5 ° with trapezoidal high angle, this specification
Elastomer fitting recess combine the embedded elastomeric seal of extruding, more preferable dynamic sealing performance can be reached.
Stop-leak compound uses food-grade valve seal lubricating grease, and the stop-leak compound of the model combines the O-ring of extruding, can
Produce optimal rotatory sealing effect.
Airtight and watertight padding is using modified polytetrafluoroethylmaterial material；The longitudinal section of packing groove is rectangular, and specification packing groove is indulged
Rectangular in cross-section, specification are generally 3mm × 10mm.The longitudinal section of airtight and watertight padding is rectangular, and specification is generally 6mm × 10mm.It is logical
The interference fit of airtight and watertight padding and packing groove is crossed, while uses level Four combined labyrinth and carbon gland mode, it is close can further to improve rotation
The effect of envelope.
The longitudinal section of seal groove is rectangular, and specification is generally 6mm × 10mm.
One end that seal receptacle is connected with bearing is fixed with end cap；Sealing shroud passes through end cap；The connection of seal receptacle and end cap
Place is provided with O-ring.Pass through the setting of junction O-ring, the performance of raising junction static seal.
Seal receptacle is connected one end with bearing and stretched out provided with boss, in step-like；Boss inwall is provided with corresponding with bearing
Fitting recess.It is attached by boss and end cap, is coordinated by fitting recess and bearing, assembling is more convenient.
The utility model has advantages below compared with prior art：
1st, using the elastomeric seal under compressive state, with reference to stop-leak compound, dynamic sealing is carried out to rotational structure, sets two
Level elastomeric seal structure, two elastomers and fitting recess and seal groove and between clearance channel collectively constitute annular seal space, it is close
Seal the full stop-leak compound of intracavitary filling.The elastomer at annular seal space combination both ends so that stop-leak compound is sealed in centre, the anti-watertight of stop-leak compound
Sealing property is fully played, and stop-leak compound makes elastomer reduce with sealing shroud frictional dissipation, reaches good rotatory sealing effect.
2nd, the utility model is effectively improved the dynamic sealing performance of rotational structure by level Four combined seal structure,
Extend the service life of sealing structure.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model rotary seal structure；
Fig. 2 is the structural representation between seal receptacle and sealing shroud in Fig. 1；
Fig. 3 is the structural representation of seal receptacle in Fig. 1；
Fig. 4 is the mplifying structure schematic diagram of Fig. 3 elastomer fitting recess；
In figure, 1- sealing shrouds, 2- airtight and watertight paddings, 3- elastomeric seals, 4- stop-leak compounds, 5- seal receptacles, 51- packing grooves,
52- elastomer fitting recess, 53- seal grooves, 54- boss, 6-O shape circles, 7- end caps, 8- screws, 9- bearings.
Embodiment
The utility model is described in detail below in conjunction with the accompanying drawings.
As shown in figure 1, the utility model rotary seal structure includes sealing shroud 1, seal receptacle 5, airtight and watertight padding 2, elastomer
Seal 3.Sealing shroud 1 is sleeve-shaped, and right side is arranged on the right-hand member of seal receptacle 5 by the support of bearing 9；Seal receptacle 5 is placed on sealing
The outer circumferential side of set 1, and coordinate with the gap of sealing shroud 1.With reference to Fig. 3, the inwall of seal receptacle 5 is sequentially provided with packing groove from left to right
51st, elastomer fitting recess 52, lubrication groove 53, elastomer fitting recess 52.2, two elastomeric seals 3 of airtight and watertight padding are respectively arranged on
Between packing groove 51 and two elastomer fitting recess 52.Airtight and watertight padding 2 is interference fitted with sealing shroud 1.The longitudinal section of packing groove 51
It is rectangular, groove is hooked compared with standard, groove depth is shallower, and width is slightly wide, and preferably specification size is 3mm × 10mm；Airtight and watertight padding 2, which uses, to be changed
Property polytetrafluoroethylmaterial material, material preferentially from E.I.Du Pont Company add 25% carbon fiber modified Teflon, longitudinal section
Rectangular, preferably specification size is 6mm × 10mm；External diameter and bottom land tight fit, internal diameter are higher than packing groove step surface, preferably specification
Size is 6mm × 10mm.Silt in liquid medium or other impurity are obstructed by airtight and watertight padding 2.Elastomeric seal 3
Corresponding to extruding is embedded in elastomer fitting recess 52,3 preferred O-ring of elastomeric seal, compression ratio is slightly above rotary dynamic seal
Standard recommendation value, preferred compressed rate are 3% ~ 8%.The longitudinal section of elastomer fitting recess 52 is in isosceles trapezoid, trapezoidal hypotenuse with it is trapezoidal
High angular range is not more than 5 °.Stop-leak compound is coated between elastomeric seal 3 and elastomer fitting recess 52.Stop-leak compound uses
Food-grade valve seal lubricating grease, preferential to select angstrom section's TK210 packing greases, the stop-leak compound of the model combines the O shapes of extruding
Circle, can produce optimal rotatory sealing effect.The longitudinal section of seal groove 53 is rectangular, and size hooks groove compared with standard, and groove depth is omited
Deep, width is slightly wide, and preferably specification size is that 6mm × 10mm is filled out in the seal groove 53 simultaneously between two-stage elastomeric seal 3
Fill stop-leak compound, two elastomers and fitting recess and seal groove and between clearance channel collectively constitute annular seal space, filled out in annular seal space
Full of stop-leak compound, the elastomer at seal groove combination both ends so that stop-leak compound is sealed in centre, and the sealing performance of stop-leak compound is filled
Get performance, stop-leak compound makes elastomer reduce with sealing shroud frictional dissipation.The right-hand member of seal receptacle 5 extends provided with boss to outer peripheral side
54, the outer circumferential side of boss 54 is step surface；The inwall of boss 54 is provided with enters luggage with 9 corresponding fitting recess of bearing, convenient and bearing 9
Match somebody with somebody.And the boss 54 and end cap 7 for passing through the fixing seal seat 5 of screw 8.Sealing shroud 1 passes through end cap 7.The company of seal receptacle 5 and end cap 7
Meet place and be provided with O-ring 6.By the setting of junction O-ring 6, the performance of static seal is improved.
The device that both sides are rotated against is fixedly mounted by seal receptacle and sealing shroud respectively, carries out the close of rotating device
Envelope：Dynamic sealing can be effectively realized on sealing shroud using the embedded elastomeric seal of extruding and stop-leak compound, and can be reduced
Countershaft（It can be fixedly connected using sealing shroud）Direct friction and loss；Utilize elastomeric seal and elastomer simultaneously
The stop-leak compound smeared between fitting recess, enter to improve sealing property.
Claims (10)
- A kind of 1. rotary seal structure, it is characterised in that：Including sealing shroud, seal receptacle, elastomeric seal；The sealing shroud is Sleeve-shaped, one end are arranged on one end of the seal receptacle by bearing；Two ring-types are sequentially provided with the inwall of the seal receptacle Elastomer fitting recess；The elastomeric seal is two, annularly, extrudes elastomer fitting recess corresponding to insertion respectively It is interior；Stop-leak compound is coated between elastomeric seal and the elastomer fitting recess.
- 2. rotary seal structure according to claim 1, it is characterised in that：At the inwall of the seal receptacle, above-mentioned two Seal groove is set between elastomer fitting recess；The elastomeric seal is interference fitted with sealing shroud；Described two elastomeric seals Clearance channel between the elastomer fitting recess, seal groove and sealing shroud of seal receptacle is surrounded into annular seal space by part；The annular seal space The interior full stop-leak compound of filling.
- 3. rotary seal structure according to claim 2, it is characterised in that：It is provided with the other end inwall of the seal receptacle Packing groove；On the inwall of the seal receptacle packing groove, the elasticity are sequentially provided with since one end away from the bearing Body fitting recess, the seal groove, the elastomer fitting recess；The rotary seal structure also includes airtight and watertight padding；The sealing Filler is ring-type, in the embedded packing groove；It is interference fitted between the airtight and watertight padding and the sealing shroud；The seal receptacle It is step surface on inwall, between packing groove and elastomer fitting recess, the internal diameter that seal receptacle is located at packing groove one end is big, positioned at elasticity The internal diameter of body fitting recess one end is small.
- 4. rotary seal structure according to claim 3, it is characterised in that：The elastomeric seal uses O-ring, pressure Shrinkage is 3% ~ 8%.
- 5. rotary seal structure according to claim 4, it is characterised in that：The longitudinal section of the elastomer fitting recess for etc. Waist is trapezoidal, and trapezoidal hypotenuse is not more than 5 ° with trapezoidal high angle.
- 6. rotary seal structure according to claim 5, it is characterised in that：The stop-leak compound uses food-grade valve seal Lubricating grease.
- 7. rotary seal structure according to claim 6, it is characterised in that：The airtight and watertight padding is using modified polytetrafluoro Vinyl material；The longitudinal section of the packing groove is rectangular, and specification is 3mm × 10mm；The longitudinal section of the airtight and watertight padding is rectangular, Specification is 6mm × 10mm.
- 8. rotary seal structure according to claim 7, it is characterised in that：The longitudinal section of the seal groove is rectangular, rule Lattice are 6mm × 10mm.
- 9. rotary seal structure according to claim 8, it is characterised in that：One end that the seal receptacle is connected with bearing is consolidated Surely it is provided with end cap；The sealing shroud passes through the end cap；The junction of the seal receptacle and end cap is provided with O-ring.
- 10. rotary seal structure according to claim 9, it is characterised in that：The seal receptacle be connected with bearing one end to Outer extension is provided with boss, in step-like；The boss inwall is provided with fitting recess corresponding with bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720626167.8U CN206786010U (en) | 2017-06-01 | 2017-06-01 | A kind of rotary seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720626167.8U CN206786010U (en) | 2017-06-01 | 2017-06-01 | A kind of rotary seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206786010U true CN206786010U (en) | 2017-12-22 |
Family
ID=60714909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720626167.8U Expired - Fee Related CN206786010U (en) | 2017-06-01 | 2017-06-01 | A kind of rotary seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206786010U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223803A (en) * | 2018-03-14 | 2018-06-29 | 宁波恒通诺达液压股份有限公司 | Head and underwater milling digging machine are dug in the milling of underwater milling digging machine |
| CN109734042A (en) * | 2019-01-11 | 2019-05-10 | 苏州三米格环保科技有限公司 | Refueling nozzle and fuel-servicing equipment |
| CN112412231A (en) * | 2020-06-24 | 2021-02-26 | 皓永汽车配件有限公司 | Actuator for vehicle charging port cover plate |
-
2017
- 2017-06-01 CN CN201720626167.8U patent/CN206786010U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223803A (en) * | 2018-03-14 | 2018-06-29 | 宁波恒通诺达液压股份有限公司 | Head and underwater milling digging machine are dug in the milling of underwater milling digging machine |
| CN108223803B (en) * | 2018-03-14 | 2024-04-16 | 宁波恒通诺达液压股份有限公司 | Milling head of underwater milling machine and underwater milling machine |
| CN109734042A (en) * | 2019-01-11 | 2019-05-10 | 苏州三米格环保科技有限公司 | Refueling nozzle and fuel-servicing equipment |
| CN112412231A (en) * | 2020-06-24 | 2021-02-26 | 皓永汽车配件有限公司 | Actuator for vehicle charging port cover plate |
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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 |
Granted publication date: 20171222 |
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| CF01 | Termination of patent right due to non-payment of annual fee |