CN109958772A - A kind of mechanically-sealing apparatus - Google Patents
A kind of mechanically-sealing apparatus Download PDFInfo
- Publication number
- CN109958772A CN109958772A CN201711398671.8A CN201711398671A CN109958772A CN 109958772 A CN109958772 A CN 109958772A CN 201711398671 A CN201711398671 A CN 201711398671A CN 109958772 A CN109958772 A CN 109958772A
- Authority
- CN
- China
- Prior art keywords
- ring
- shaft
- drive sleeve
- rotating ring
- outer retaining
- 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.)
- Pending
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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
- F16J15/3436—Pressing means
- F16J15/3452—Pressing means the pressing force resulting from the action of a spring
-
- 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
- F16J15/3464—Mounting of the seal
-
- 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
- F16J15/38—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member sealed by a packing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
Abstract
The present invention provides a kind of mechanically-sealing apparatus, belong to sealing system technical field；It solves spring failure in existing machinery sealing device and the technical problem that causes mechanical seal service life shorter；The technical solution of the present invention is as follows: a kind of mechanically-sealing apparatus, including shaft, shaft is equipped with stationary ring, rotating ring, rotating ring rear end is affixed on stationary ring and rotates on stationary ring, the drive sleeve with shaft tight fit is provided in shaft, drive sleeve rear end face periphery is axially extending to be formed with outer retaining ring and outer retaining ring and rotating ring tight fit, outer retaining ring makes drive sleeve rear end face be formed with first step, accommodating chamber is formed between the rotating ring, first step and outer retaining ring, the both ends that waveform spring and waveform spring are provided in accommodating chamber are against respectively on rotating ring rear end face and first step；The use of waveform spring has prevented the phenomenon that suspended particulate obstruction spring causes spring failure in medium, extends the service life of mechanically-sealing apparatus.
Description
Technical field
The invention belongs to sealing system technical fields, are related to a kind of mechanically-sealing apparatus, especially it is a kind of be suitable for papermaking,
Mechanically-sealing apparatus under the complex environments such as sugaring, sewage treatment.
Background technique
Mechanically-sealing apparatus is by a pair of or several end faces to perpendicular to the opposite sliding of axis work in Fluid pressure and compensation machine
Elastic force (or magnetic force) effect of structure is lower to keep being bonded and is equipped with auxiliary seal and reaches the gland seal device of Drain Resistance, relative to other
The sealing device of type has high reliablity, long service life, the preferable, wide adaptation range of mechanical friction etc. a little, therefore quilt
The every field being widely used in life.
With the progress of China's industrial technology, fluid supply apparatus is just sent out towards enlargement, energy-saving, diversified direction
Exhibition, therefore have more requirements to mechanically-sealing apparatus and be particular about, there are mainly two types of existing mechanically-sealing apparatus, one is
Built-in type, one is fitted outsides.Currently, usually used is mainly internally mounted mechanical seal, it is set in shaft in structure
Rotating ring be sealed with stationary ring with its opposite seal face, wherein rotating ring through locking structure connect with shaft and can and shaft
Rotate synchronously, be provided with the sealing compensation mechanism of the state type including spring and drive sleeve on stationary ring rear end, stationary ring with
Axially penetrate through end cap outer end face, seal face is located on the inside of end cap, is stretched on the outside of end cap outside outer end, and on the outside of end cap
Spring in strong wind compensation mechanism makees Elastic Contact, and inbuilt mechanical seal has preferable sealing effect, but has simultaneously
There is following deficiency, internally mounted mechanical seal device is in installation pump chamber, and entire mechanical seal is all immersed in liquid, due to mesh
Preceding chemical industry uses media range wider, in this way, the components of the mechanically-sealing apparatus in liquid are necessarily situated between by chemistry
The limitation of matter, especially spring can corrode or block due to the factors such as fiber in the viscosity of medium or medium, and spring is caused to lose
Effect, the service life of mechanical seal are shorter.
Summary of the invention
The purpose of the present invention is in view of the above-mentioned problems existing in the prior art, propose one kind be avoided that spring failure to
The mechanical sealing device used for pump to prolong the service life.
Object of the invention can be realized by the following technical scheme: a kind of mechanically-sealing apparatus, including shaft, and described turn
Axis is equipped with stationary ring, rotating ring, and the rotating ring rear end is affixed on stationary ring and rotates on stationary ring, is provided in the shaft and shaft
The drive sleeve of tight fit, drive sleeve rear end face periphery is axially extending to be formed with outer retaining ring and outer retaining ring and rotating ring tight fit, described
Outer retaining ring makes drive sleeve rear end face be formed with first step, is formed with accommodating chamber between the rotating ring, first step and outer retaining ring,
The both ends that waveform spring and waveform spring are provided in the accommodating chamber are against respectively on rotating ring rear end face and first step, described
Fastening screw is symmetrically arranged in the two lateral walls of outer retaining ring, fastening screw is horizontally through outer retaining ring and protrudes into rotating ring, institute
It states and is horizontally arranged with non-slip mat in drive sleeve, the non-slip mat is fixedly connected with drive sleeve and drive sleeve end is pressed in shaft
On.
In a kind of above-mentioned mechanically-sealing apparatus, first annular slot is offered on the drive sleeve inner sidewall, described first
The first sealing ring is provided in annular groove, first sealing ring is adjacent to first annular slot and shaft respectively.
It is axial on the inside of the rotating ring front end face to be provided with inner shield ring, the retaining ring in a kind of above-mentioned mechanically-sealing apparatus
Rotating ring front end face is set to be formed with second step, the waveform spring is between outer retaining ring and inner shield ring and waveform spring one end is supported
On second step.
In a kind of above-mentioned mechanically-sealing apparatus, the second annular groove, the second annular groove are offered on the rotating ring inner sidewall
It is inside provided with the second sealing ring, second sealing ring is adjacent to the second annular groove with shaft respectively.
Compared with prior art, the invention has the following advantages:
1, this mechanically-sealing apparatus uses waveform spring, since waveform spring is the thin slice being made of several Wave crest and wave troughs
Annular resilient hardware has biggish gap between peaks and troughs, therefore has good elasticity, and waveform spring with
Gap between each components but very little, the suspended particulate in some media can not block waveform spring itself and waveform spring
Gap between components, thus spring always can normal use, draw to prevent in medium suspended particulate obstruction spring
The phenomenon that playing spring failure, extends the service life of mechanically-sealing apparatus.
2, waveform spring is located in the accommodating chamber that first step, second step, outer retaining ring and inner shield ring are formed, so that waveform
Spring and complicated external environs, external medium Dang not be outside accommodating chamber, between waveform spring and each components always
It keeps clean, reduces deposition of the suspended particulate in accommodating chamber in medium, effectively prevent suspended particulate from blocking waveform spring.
Detailed description of the invention
Fig. 1 is a kind of the schematic diagram of the section structure of mechanically-sealing apparatus of the present invention.
Fig. 2 is the schematic diagram of the section structure of drive sleeve in a kind of mechanically-sealing apparatus of the present invention.
Fig. 3 is the plan view of rotating ring in a kind of mechanically-sealing apparatus of the present invention.
In figure, 100, shaft；200, stationary ring；300, rotating ring；310, blind hole；320, inner shield ring；330, second step；340,
Second annular groove；341, the second sealing ring；400, drive sleeve；410, outer retaining ring；411；First through hole；412, fastening screw；
420；First step；430, the second through-hole；431, non-slip mat；440, first annular slot；441, the first sealing ring；500, it accommodates
Chamber；510, waveform spring.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figure 1, a kind of mechanically-sealing apparatus of the present invention, including shaft 100 and the stationary ring being installed in shaft 100
200, rotating ring 300, drive sleeve 400,300 rear end face of rotating ring are affixed on stationary ring 200 and rotate on stationary ring 200, the drive sleeve
400 with 100 tight fit of shaft, 400 rear end face periphery of drive sleeve is axially extending to be formed with outer retaining ring 410 and makes entire drive sleeve
400 be in axial step shape, and the inner sidewall of outer retaining ring 410, which is tightly attached on 300 lateral wall of rotating ring, makes outer retaining ring 410 and 300 shape of rotating ring
At tight fit, which makes 400 rear end face of drive sleeve be formed with first step 420, rotating ring 300, first step 420 with
It is formed with accommodating chamber 500 between outer retaining ring 410, which is annular, is equipped with waveform spring in accommodating chamber 500
510, the both ends of the waveform spring 510 are against respectively on 300 rear end face of rotating ring and first step 420, and waveform spring 510 passes through outer
Retaining ring 410 is limited in accommodating chamber 500.
This mechanically-sealing apparatus using the above structure, is equipped with waveform spring 510 between drive sleeve 400 and rotating ring 300,
Since waveform spring 510 is the thin slice annular resilient hardware being made of several Wave crest and wave troughs, have between peaks and troughs
Biggish gap, therefore there is good elasticity, and the gap very little between waveform spring 510 and each components, Yi Xiejie
Suspended particulate in matter can not block waveform spring 510 itself and the gap between waveform spring 510 and components, therefore bullet
Spring always can normal use to prevent in medium the phenomenon that suspended particulate obstruction spring causes spring failure extend machine
The service life of tool sealing device, waveform spring 510 are located at rotating ring 300, first step 420, outer retaining ring 410 and the receiving formed
In chamber 500, so that waveform spring 510 and complicated external environs, external medium Dang not be outside accommodating chamber 500, waveform
It remains clean between spring 510 and each components, reduces deposition of the suspended particulate in accommodating chamber 500 in medium, have
Effect prevents suspended particulate from blocking waveform spring 510.
As shown in Figure 1 and Figure 2, first through hole 411, first through hole are symmetrically offered in the two lateral walls of outer retaining ring 410
It is separately installed with the fastening screw 412 with outer 410 tight fit of retaining ring in 411, two fastening screws 412 are oppositely arranged and position simultaneously
In on the diameter line of drive sleeve 400, offering the blind hole 310 coaxial with first through hole 411 on 300 lateral wall of rotating ring, fasten
Screw 412 is horizontally through outer retaining ring 410 and protrudes into the blind hole 310, and herein, fastening screw 412 protrudes into blind hole 310, makes to pass
Dynamic set 400 drives rotating ring 300 to rotate while rotation with shaft 100, and anti-locating snap ring 300 separates with drive sleeve 400 and causes to move
Ring 300 loses transmission agency.
The second through-hole 430 across drive sleeve 400 is laterally offered in 400 side of drive sleeve, in second through-hole 430
Non-slip mat 431 is installed, 431 front end of non-slip mat is pressed on 100 outer surface of shaft, the non-slip mat 431 and drive sleeve 400 it
Between be fixedly connected by hex screw, it is of course also possible to connect otherwise, the elastic force due to rotating ring 300 in spring is made
It is just affixed on stationary ring 200 and is rotated on stationary ring 200 always with lower, and in the mechanical seal course of work, drive sleeve 400 is turning
Axial jump is easy on axis 100, since drive sleeve 400 is connect with rotating ring 300 by fastening screw 412, when drive sleeve 400 is turning
Axis 100 will drive the movement of rotating ring 300 when generating displacement, so that rotating ring 300 is separated with stationary ring 200, rotating ring 300 can not be in stationary ring
It is rotated on 200, gap is generated between rotating ring 300 and stationary ring 200, will so leaked, therefore installed in drive sleeve 400
Non-slip mat 431, and compress it in shaft 100, the axial jump in shaft 100 of drive sleeve 400 can be effectively prevented, is made
Ring 300 is affixed on always on stationary ring 200, effectively prevents the generation of leakage situation.
First annular slot 440 is laterally offered on 400 inner sidewall of drive sleeve, is equipped with first in first annular slot 440
Sealing ring 441, first sealing ring 441 are adjacent to first annular slot 440 and shaft 100 respectively, first sealing ring 441 enhancing
Frictional force between shaft 100, so that drive sleeve 400 and the relative displacement of shaft 100 are smaller, while increasing drive sleeve
Sealing performance between 400 and shaft 100.
As shown in Figure 1, Figure 3, inner shield ring 320 is axially provided on the inside of the front end face of rotating ring 300, which can
It is integrally formed with rotating ring 300, the whole row and intensity of inner shield ring 320 Yu rotating ring 300 so can be improved, which makes
Whole ring 300 is in axial step shape, which makes 300 front end face of rotating ring be formed with second step 330, above-mentioned waveform bullet
Spring 510 is limited between outer retaining ring 410 and inner shield ring 320 and 510 one end of waveform spring is against on second step 330, waveform
510 both ends of spring are against simultaneously on first step 420 and second step 330, under the elastic force effect of waveform spring 510, rotating ring
300 are affixed on always on stationary ring 200, and under the barrier action of inner shield ring 320, waveform spring 510 will not be contacted with shaft 100, protect
It is not damaged to have protected waveform spring 510, while having prevented waveform spring 510 and shaft 100 from rubbing and causing waveform spring 510 can not
Reach its normal elastic effect.
Further, the second annular groove 340 is laterally offered on 300 inner sidewall of rotating ring, is pacified in the second annular groove 340
Equipped with the second sealing ring 341, which is adjacent to the second annular groove 340 with shaft 100 respectively, the second sealing ring
341 increase the frictional force between shaft 100, so that the relative displacement between stationary ring 200 and shaft 100 is smaller, increase simultaneously
Add the sealing effect between stationary ring 200 and shaft 100, prevents mechanically-sealing apparatus during the work time, the suspension in medium
Particle, which enters in accommodating chamber 500, to be contacted with waveform spring 510 and suspended particulate is caused to block waveform spring 510.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (4)
1. a kind of mechanically-sealing apparatus, including shaft, the shaft is equipped with stationary ring, rotating ring, and the rotating ring rear end is affixed on stationary ring
It above and on stationary ring rotates, it is characterised in that: the drive sleeve with shaft tight fit, drive sleeve rear end face are provided in the shaft
Periphery is axially extending to be formed with outer retaining ring and outer retaining ring and rotating ring tight fit, and the outer retaining ring makes drive sleeve rear end face be formed with the
One step is formed with accommodating chamber between the rotating ring, first step and outer retaining ring, be provided in the accommodating chamber waveform spring and
The both ends of waveform spring are against respectively on rotating ring rear end face and first step, are symmetrical arranged in the two lateral walls of the outer retaining ring
There is fastening screw, fastening screw is horizontally through outer retaining ring and protrudes into rotating ring, and non-slip mat, institute are horizontally arranged in the drive sleeve
State that non-slip mat is fixedly connected with drive sleeve and drive sleeve end is pressed in shaft.
2. a kind of mechanically-sealing apparatus according to claim 1, it is characterised in that: offered on the drive sleeve inner sidewall
First annular slot, is provided with the first sealing ring in the first annular slot, first sealing ring respectively with first annular slot and
Shaft is adjacent to.
3. a kind of mechanically-sealing apparatus according to claim 2, it is characterised in that: axial on the inside of the rotating ring front end face to set
It is equipped with inner shield ring, the retaining ring makes rotating ring front end face be formed with second step, and the waveform spring is located at outer retaining ring and inner shield ring
Between and waveform spring one end be against on second step.
4. a kind of mechanically-sealing apparatus according to claim 3, it is characterised in that: offer on the rotating ring inner sidewall
Second ring slot, the second sealing ring is provided in the second annular groove, and second sealing ring is pasted with the second annular groove and shaft respectively
Tightly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711398671.8A CN109958772A (en) | 2017-12-22 | 2017-12-22 | A kind of mechanically-sealing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711398671.8A CN109958772A (en) | 2017-12-22 | 2017-12-22 | A kind of mechanically-sealing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109958772A true CN109958772A (en) | 2019-07-02 |
Family
ID=67018654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711398671.8A Pending CN109958772A (en) | 2017-12-22 | 2017-12-22 | A kind of mechanically-sealing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109958772A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285218A (en) * | 2019-06-27 | 2019-09-27 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of perseverance elastic force plated film involute helicla flute extended life seal device |
| CN112303238A (en) * | 2019-07-24 | 2021-02-02 | 江苏鸿胜泵业科技有限公司 | Mechanical sealing device |
-
2017
- 2017-12-22 CN CN201711398671.8A patent/CN109958772A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285218A (en) * | 2019-06-27 | 2019-09-27 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of perseverance elastic force plated film involute helicla flute extended life seal device |
| CN112303238A (en) * | 2019-07-24 | 2021-02-02 | 江苏鸿胜泵业科技有限公司 | Mechanical sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190702 |
|
| WD01 | Invention patent application deemed withdrawn after publication |