CN109027244A - A kind of mechanically-sealing apparatus - Google Patents
A kind of mechanically-sealing apparatus Download PDFInfo
- Publication number
- CN109027244A CN109027244A CN201811097023.3A CN201811097023A CN109027244A CN 109027244 A CN109027244 A CN 109027244A CN 201811097023 A CN201811097023 A CN 201811097023A CN 109027244 A CN109027244 A CN 109027244A
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- CN
- China
- Prior art keywords
- ring
- sealing
- face
- mechanically
- throw
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
Abstract
The invention discloses a kind of mechanically-sealing apparatus, comprising: rotating part and stationary part；Stationary part and rotating part are flexibly connected by the first positioning device；Stationary part includes end cover, stationary ring and first sealing device；Rotating part includes phantom ring, rotating ring, the second sealing device, throw-out collar, the second positioning device, elastic element, locking apparatus, transmission device and drive ring；First positioning device is fixed at phantom ring front end face, and the front end face contact of the rear end face of stationary ring and phantom ring；Phantom ring rear end face is fitted closely with rotating ring front end face；Rotating ring is set in the outside of throw-out collar front end, and the second sealing device is sheathed in rotating ring；Throw-out collar passes through elastic element respectively in radial two sides with drive ring and transmission device is fixedly connected；Locking apparatus is used to drive ring being fixedly connected on rotary shaft.The present invention adds phantom ring between the rotating ring and stationary ring of mechanical seal, to reduce relative rotation speed between each seal face of mechanical seal, improves the sealing performance of mechanical seal.
Description
Technical field
The present invention relates to the technical fields of sealing, more particularly to a kind of mechanically-sealing apparatus.
Background technique
Mechanical seal is a kind of gland seal device of rotating machinery.For example centrifugal pump, centrifuge, reaction kettle and compressor etc. are set
It is standby, since transmission shaft is through inside and outside equipment, in this way, the medium in equipment passes through there are a circumferential clearance between axis and equipment
The gap leaks out, if pressure is subatmospheric in equipment, air is to equipment internal leakage, therefore, it is necessary to there is a resistance
The gland seal device of stopping leak leakage.But relative rotation speed is high between the rotating ring of existing mechanically-sealing apparatus and each sealing surface of stationary ring,
Cause the sealing performance of existing mechanical seal structure stability difference and mechanical seal lower.
Summary of the invention
The object of the present invention is to provide a kind of mechanically-sealing apparatus to make machine to solve the above-mentioned problems of the prior art
Relative rotation speed reduces between each seal face between stationary ring and rotating ring in tool sealing device, to improve the sealing of mechanically-sealing apparatus
Performance.
To achieve the above object, the present invention provides following schemes:
The present invention provides a kind of mechanically-sealing apparatus, including rotating part and stationary part；The stationary part and the rotation
Portion is flexibly connected by the first positioning device；The stationary part includes end cover, stationary ring and first sealing device；Described first
Sealing device is set in the stationary ring front, and the stationary ring and the first sealing device are fixed at the end cover
It is interior；The rotating part includes phantom ring, rotating ring, the second sealing device, throw-out collar, the second positioning device, elastic element, tightening dress
It sets, transmission device and drive ring；First positioning device is fixed at the phantom ring front end face, and after the stationary ring
The front end face contact of end face and the phantom ring；The phantom ring rear end face is fitted closely with the rotating ring front end face；It is described dynamic
Ring set is located at the outside of the throw-out collar front end, and second sealing device is sheathed in the rotating ring, and the throw-out collar front end face
Compressing axially second sealing device fits closely second sealing device axially with the rotating ring；The throw-out collar with
The rotating ring passes through the circumferentially fixed connection of the second positioning device；The throw-out collar and the drive ring are distinguished in radial two sides
It is fixedly connected by the elastic element with the transmission device；The locking apparatus is for the drive ring to be fixedly connected on
In rotary shaft.
Preferably, the first sealing device and second sealing device are O-ring seal.
Preferably, first positioning device is positioning ring；It is set respectively on the stationary ring and the contact surface of the phantom ring
Being equipped with axial cross section is semicircular annular groove, and the internal diameter and outer diameter of two annular grooves are equal, two rings
Connected in star docks to form an annular accommodating cavity；The positioning ring setting is in the annular accommodating cavity.
Preferably, a stepped hole is set on the drive ring end face, the elastic element is placed in the stepped hole, institute
The one end for stating elastic element is against on the cascaded surface of the stepped hole, and the other end of the elastic element is against the throw-out collar rear end
On face.
Preferably, the elastic element is spring.
Preferably, the transmission device is trundle；One end of the trundle is fixed inside the drive ring,
The other end of the trundle stretches out the drive ring and is connected through a screw thread with the throw-out collar.
Preferably, the quantity of the phantom ring is multiple, and multiple phantom rings are for being sequentially coaxially sheathed on rotary shaft
Outside.
Preferably, second positioning device is the assembly side of pin, the pin and the throw-out collar by interference fit
Formula assembly.
Preferably, the locking apparatus is holding screw, and the drive ring is connected through a screw thread with the locking apparatus.
Preferably, a groove is provided on the inner sidewall of the rear end of the rotating ring, the outer end of second positioning device is stretched
Enter to the groove.
The present invention achieves following technical effect compared with the existing technology:
The present invention adds phantom ring between the rotating ring and stationary ring of mechanically-sealing apparatus, and phantom ring is rotated in mechanical seal
It when operation, can be rotated with phantom ring, while there are relative motions with rotating ring, to reduce the dynamic of mechanically-sealing apparatus
Relative rotation speed between each seal face between ring and stationary ring, and then improve the sealing performance of mechanically-sealing apparatus.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is mechanically-sealing apparatus provided by the invention.
Wherein: 1- first sealing device, 2- stationary ring, 3- rotating ring, the second sealing device of 4-, the second positioning device of 5-, 6- are pushed away
Ring, 7- elastic element, 8- locking apparatus, 9- transmission device, 10- drive ring, 11- phantom ring, the first positioning device of 12-.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art under the premise of not making the creative labor it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of mechanically-sealing apparatus, of the existing technology to solve the problems, such as, make.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
A kind of mechanically-sealing apparatus, including rotating part and stationary part are present embodiments provided as shown in Figure 1:；Stationary part and
Rotating part is flexibly connected by the first positioning device 12；Stationary part includes end cover, stationary ring 2 and first sealing device 1；First
Sealing device 1 is set in 2 front of stationary ring, and stationary ring 2 and first sealing device 1 are fixed in end cover；Rotating part packet
Include phantom ring 11, rotating ring 3, the second sealing device 4, throw-out collar 6, the second positioning device 5, elastic element 7, locking apparatus 8, transmission dress
Set 9 and drive ring 10；First positioning device 12 is fixed at 11 front end face of phantom ring, and the rear end face and phantom ring of stationary ring 2
11 front end face contact；11 rear end face of phantom ring is fitted closely with 3 front end face of rotating ring；Rotating ring 3 is set in the outer of 6 front end of throw-out collar
Portion, the second sealing device 4 are sheathed in rotating ring 3, and 6 front end face of throw-out collar compresses axially the second sealing device 4 and fills the second sealing
4 are set to fit closely with rotating ring 3 axially；Throw-out collar 6 and rotating ring 3 pass through the circumferentially fixed connection of the second positioning device 5；Throw-out collar 6 and drive
Rotating ring 10 passes through elastic element 7 in radial two sides respectively and is fixedly connected with transmission device 9；Locking apparatus 8 is used for drive ring
10 are fixedly connected in rotary shaft.
Rotary shaft is rotated, then drive ring 10 rotates, and drive ring 10 is pushed away by transmission device 9 and the drive of elastic element 7
Ring 6 rotates, and throw-out collar 6 drives rotating ring 3 to rotate by the second positioning device 5, causes axially fitting with rotating ring 3 end face
Phantom ring 11 throws switch with phantom ring 3, and stationary ring 2 is fixed in end cover, thus make rotating ring 3 and phantom ring 11 with
And relative rotation speed reduces between the seal face contacted between stationary ring 2 and phantom ring 11, and then improves the close of mechanically-sealing apparatus
Sealing property.
First sealing device 1 and the second sealing device 4 are O-ring seal.First sealing device 1 and the second sealing device
4 form the auxiliary sealing structure of mechanically-sealing apparatus.
First positioning device 12 is positioning ring；Being respectively arranged with axial cross section on stationary ring 2 and the contact surface of phantom ring 11 is
Semicircular annular groove, the internal diameter and outer diameter of two annular grooves are equal, and two annular grooves, which dock, to be formed an annular and hold
Set chamber；Positioning ring is arranged in annular accommodating cavity.Positioning ring positions phantom ring 11 radially, prevents phantom ring 11 from existing
Radial-play occurs in rotary course.
One stepped hole is set on 10 end face of drive ring, and elastic element 7 is placed in stepped hole, and one end of elastic element 7 is supported
On the cascaded surface of stepped hole, the other end of elastic element 7 is against on 6 rear end face of throw-out collar.
Elastic element 7 is spring.
Transmission device 9 is trundle；One end of trundle is fixed inside drive ring 10, and the other end of trundle is stretched
Drive ring 10 is connected through a screw thread with throw-out collar 6 out.
The quantity of phantom ring 11 be it is multiple, multiple phantom rings 11 are for being sequentially coaxially sheathed on outside rotary shaft.Phantom ring 11
Quantity should be selected according to actual needs.
Second positioning device 5 is pin, and pin passes through interference fit along the hole that throw-out collar 6 radially opens up on throw-out collar 6 one
Assembly method assembly.
Locking apparatus 8 is holding screw, and drive ring 10 is connected through a screw thread with locking apparatus 8.Locking apparatus 8, which will be realized, to be driven
Rotating ring 10 is fixedly connected with rotary shaft.
A groove is provided on the inner sidewall of the rear end of rotating ring 3, the outer end of the second positioning device 5 stretches in groove, from
And it realizes throw-out collar 6 and rotating ring 3 is driven to be rotated around rotary shaft.
Apply that a specific example illustrates the principle and implementation of the invention in this specification, above embodiments
Explanation be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (10)
1. a kind of mechanically-sealing apparatus, it is characterised in that: including rotating part and stationary part；The stationary part and the rotating part are logical
Cross the flexible connection of the first positioning device；The stationary part includes end cover, stationary ring and first sealing device；First sealing
Device is set in the stationary ring front, and the stationary ring and the first sealing device are fixed in the end cover；
The rotating part includes phantom ring, rotating ring, the second sealing device, throw-out collar, the second positioning device, elastic element, locking apparatus, biography
Dynamic device and drive ring；First positioning device is fixed at the phantom ring front end face, and the rear end face of the stationary ring
With the front end face contact of the phantom ring；The phantom ring rear end face is fitted closely with the rotating ring front end face；The moving ring sleeve
It is located at the outside of the throw-out collar front end, second sealing device is sheathed in the rotating ring, and the throw-out collar front end face is axial
Squeezing second sealing device fits closely second sealing device axially with the rotating ring；The throw-out collar with it is described
Rotating ring passes through the circumferentially fixed connection of the second positioning device；The throw-out collar passes through with the drive ring in radial two sides respectively
The elastic element is fixedly connected with the transmission device；The locking apparatus is used to the drive ring being fixedly connected on rotation
On axis.
2. mechanically-sealing apparatus according to claim 1, it is characterised in that: the first sealing device and described second close
Seal apparatus is O-ring seal.
3. mechanically-sealing apparatus according to claim 1, it is characterised in that: first positioning device is positioning ring；Institute
Stating and being respectively arranged with axial cross section on the contact surface of stationary ring and the phantom ring is semicircular annular groove, two annulars
The internal diameter and outer diameter of groove are equal, and two annular grooves dock to form an annular accommodating cavity；The positioning ring setting exists
In the annular accommodating cavity.
4. mechanically-sealing apparatus according to claim 1, it is characterised in that: a ladder is arranged on the drive ring end face
Hole, the elastic element are placed in the stepped hole, and one end of the elastic element is against on the cascaded surface of the stepped hole,
The other end of the elastic element is against on the throw-out collar rear end face.
5. mechanically-sealing apparatus according to claim 4, it is characterised in that: the elastic element is spring.
6. mechanically-sealing apparatus according to claim 1, it is characterised in that: the transmission device is trundle；The biography
One end of dynamic pin is fixed inside the drive ring, and the other end of the trundle stretches out the drive ring and the throw-out collar
It is connected through a screw thread.
7. mechanically-sealing apparatus according to claim 1, it is characterised in that: the quantity of the phantom ring be it is multiple, it is multiple
The phantom ring is for being sequentially coaxially sheathed on outside rotary shaft.
8. mechanically-sealing apparatus according to claim 1, it is characterised in that: second positioning device is pin, described
Pin and the throw-out collar are assembled by the assembly method of interference fit.
9. mechanically-sealing apparatus according to claim 1, it is characterised in that: the locking apparatus is holding screw, described
Drive ring is connected through a screw thread with the locking apparatus.
10. mechanically-sealing apparatus according to claim 1, it is characterised in that: set on the inner sidewall of the rear end of the rotating ring
It is equipped with a groove, the outer end of second positioning device stretches in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811097023.3A CN109027244A (en) | 2018-09-20 | 2018-09-20 | A kind of mechanically-sealing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811097023.3A CN109027244A (en) | 2018-09-20 | 2018-09-20 | A kind of mechanically-sealing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109027244A true CN109027244A (en) | 2018-12-18 |
Family
ID=64617029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811097023.3A Pending CN109027244A (en) | 2018-09-20 | 2018-09-20 | A kind of mechanically-sealing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109027244A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2059203U (en) * | 1989-04-07 | 1990-07-11 | 武汉工业大学 | Differerential shaft seal device |
| CN101806362A (en) * | 2010-04-12 | 2010-08-18 | 西华大学 | Mechanical sealing device of middle rotating ring |
| CN201810779U (en) * | 2010-01-21 | 2011-04-27 | 罗星健 | Speed reduction follow-up seal |
| CN103375592A (en) * | 2012-04-24 | 2013-10-30 | 西华大学 | External driving type middle rotating ring mechanical seal with speed change gear |
| CN205715673U (en) * | 2016-04-08 | 2016-11-23 | 武汉理工大学 | Wedge shape middle rotating ring formula mechanically-sealing apparatus |
| CN206600471U (en) * | 2017-01-10 | 2017-10-31 | 长岭炼化岳阳工程设计有限公司 | A kind of benzoic acid device mechanical sealing structure for pump |
| 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 |
| CN208831732U (en) * | 2018-09-20 | 2019-05-07 | 温州市天成密封件制造有限公司 | A kind of mechanically-sealing apparatus |
-
2018
- 2018-09-20 CN CN201811097023.3A patent/CN109027244A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2059203U (en) * | 1989-04-07 | 1990-07-11 | 武汉工业大学 | Differerential shaft seal device |
| CN201810779U (en) * | 2010-01-21 | 2011-04-27 | 罗星健 | Speed reduction follow-up seal |
| CN101806362A (en) * | 2010-04-12 | 2010-08-18 | 西华大学 | Mechanical sealing device of middle rotating ring |
| CN103375592A (en) * | 2012-04-24 | 2013-10-30 | 西华大学 | External driving type middle rotating ring mechanical seal with speed change gear |
| CN205715673U (en) * | 2016-04-08 | 2016-11-23 | 武汉理工大学 | Wedge shape middle rotating ring formula mechanically-sealing apparatus |
| CN206600471U (en) * | 2017-01-10 | 2017-10-31 | 长岭炼化岳阳工程设计有限公司 | A kind of benzoic acid device mechanical sealing structure for pump |
| 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 |
| CN208831732U (en) * | 2018-09-20 | 2019-05-07 | 温州市天成密封件制造有限公司 | A kind of mechanically-sealing apparatus |
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