CN206988427U - A kind of bellows mechanical seal - Google Patents
A kind of bellows mechanical seal Download PDFInfo
- Publication number
- CN206988427U CN206988427U CN201720786993.9U CN201720786993U CN206988427U CN 206988427 U CN206988427 U CN 206988427U CN 201720786993 U CN201720786993 U CN 201720786993U CN 206988427 U CN206988427 U CN 206988427U
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- Prior art keywords
- ring
- spring
- drive sleeve
- rotating
- rotating shaft
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- 230000001360 synchronised effect Effects 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 9
- 230000000875 corresponding effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Mechanical Sealing (AREA)
Abstract
The utility model provides a kind of bellows mechanical seal, belongs to technical field of mechanical；It solves the technical problem that spring, spring base easily loosen and service life is shorter in existing machinery sealing；A kind of bellows mechanical seal, including rotating shaft, the rotating ring and stationary ring being installed in rotating shaft, rotating ring is against on stationary ring, rotating ring can rotate with rotating shaft is synchronous relative to stationary ring, drive sleeve is provided with rotating shaft, drive sleeve one end is to stationary ring to overhang and fix corresponding thereto, the drive sleeve other end is bent to rotating ring direction to be extended, rotating ring and transmission inner room are provided with positioning sleeve, positioning sleeve one end is relatively fixed in the axial direction with rotating ring, the other end is connected with drive sleeve, spring is provided with rotating shaft, and spring is located at stationary ring, between drive sleeve and positioning sleeve three, both ends of the spring exerts a force to stationary ring and drive sleeve respectively；In total, the rotation of rotating ring does not influence spring and spring base, and the stability of spring and spring base is preferable, extends the service life of whole mechanical seal.
Description
Technical field
The utility model belongs to technical field of mechanical, is related to a kind of bellows mechanical seal.
Background technology
Mechanically-sealing apparatus is by a pair or several to making the relative end face slided in Fluid pressure and compensation machine perpendicular to axle
Elastic force (or magnetic force) effect of structure is lower to be kept being bonded and is equipped with auxiliary seal and reaches the gland seal device of Drain Resistance, and it is relative to other
The sealing device of type has high reliability, service life length, the preferable, wide adaptation range of mechanical friction etc. a little, therefore quilt
It is widely used in production field every field.
Existing mechanical seal device for rubber bellows includes rotating shaft and stationary seat in rotating shaft, stationary ring, rotating ring, dynamic
Ring seat, stationary ring are arranged on stationary seat, and rotating ring is arranged on rotating seat, and rotating seat is connected with rotating shaft, and one end end face of rotating ring is supported
On one end end face of stationary ring, spring and the spring base of fixed spring are additionally provided with rotating shaft, spring one end is against on spring base,
And spring base is against on rotating seat, the spring other end is against on the retainer being arranged in rotating shaft, retainer and rotating shaft and rotating ring
Seat is connected, and during work, rotating ring can be with rotating shaft synchronous axial system with rotating seat, and rotating ring makees frictional rotation, this machinery with respect to stationary ring
Sealing structure, while rotating shaft normal rotation is realized, there is preferable sealing property, but following technical problem simultaneously be present,
In this traditional structure, the parts such as spring, spring base generally have annexation with rotating seat, and at work, rotating seat
With axis of rotation, in the course of time, easily loosened between spring, spring base, cause each parts to lose corresponding effect, cause
Whole mechanically-sealing apparatus can not normal work, service life is shorter.
In summary, in order to solve technical problem existing for above-mentioned mechanical seal, it is necessary to design a kind of spring, spring base with
The parts such as drive sleeve are not easy the bellows mechanical seal loosened and service life is longer.
Utility model content
The purpose of this utility model is in view of the above-mentioned problems existing in the prior art, it is proposed that a kind of spring, spring base with
The parts such as drive sleeve are not easy the bellows mechanical seal loosened and service life is longer.
The purpose of this utility model can be realized by following technical proposal：A kind of bellows mechanical seal, including rotating shaft
And rotating ring and stationary ring in rotating shaft are installed on successively, the rotating ring is against on stationary ring, and rotating ring is connected with rotating shaft and can be with rotating shaft
Synchronous relative stationary ring rotation, is provided with drive sleeve in rotating shaft, and described drive sleeve one end is to stationary ring to overhang and corresponding thereto
Fixed, the drive sleeve other end is bent to rotating ring direction to be extended, and rotating ring and transmission inner room are provided with positioning sleeve, the positioning sleeve one
End is relatively fixed in the axial direction with rotating ring, and the other end is connected with drive sleeve, spring is provided with rotating shaft, and spring is located at
Between stationary ring, drive sleeve and positioning sleeve three, the both ends of the spring exerts a force to stationary ring and drive sleeve respectively.
In a kind of above-mentioned bellows mechanical seal, spring base, bullet are provided between stationary ring, drive sleeve and positioning sleeve three
Spring abutment both ends inner peripheral is against stationary ring respectively and in drive sleeve, spring base both ends outer peripheral edge extends radially outwards and the both ends of spring
It is against respectively on the both ends outer peripheral edge of spring base.
In a kind of above-mentioned bellows mechanical seal, support is provided between stationary ring, drive sleeve and positioning sleeve three, it is described
The both ends bending of support is simultaneously against in stationary ring and drive sleeve respectively, and spring base both ends inner peripheral bends and born against in support
On both ends.
In a kind of above-mentioned bellows mechanical seal, its madial wall is provided with seal groove on the rotating ring, sealed
Dynamic seal ring is provided with groove, the dynamic seal ring pushes against with rotating ring and rotating shaft respectively.
In a kind of above-mentioned bellows mechanical seal, one end of the rotating ring is provided with the trundle being connected with impeller.
Compared with prior art, the utility model has the advantages that：
1st, in the utility model, the parts such as drive sleeve, spring and spring base are installed on stationary ring side, and drive sleeve passes through
Positioning sleeve contacts with rotating ring, it is achieved thereby that drive sleeve and the positioning of rotating ring in the axial direction, in total, rotating ring turns
It is dynamic not interfere with spring and spring base, so that the stability of spring and spring base is preferable, extend whole mechanical seal
Service life.
2nd, in this structure, drive sleeve and positioning sleeve, spring, spring base are surrounded so that spring is not outer with spring base
Dew, it is effectively protected the safety of spring and spring base.
3rd, simultaneously, this mechanically-sealing apparatus is simple in construction, and parts are less, the parts such as spring, spring base, drive sleeve
Installed in stationary ring side, so that total is easy to dismount, use is quite convenient.
Brief description of the drawings
Fig. 1 is axial sectional view of the present utility model.
In figure, 10, rotating shaft；20th, rotating ring；21st, seal groove；22nd, dynamic seal ring；23rd, trundle；30th, stationary ring；40th, it is driven
Set；50th, positioning sleeve；51st, hook portion；60th, spring；61st, spring base；70th, support.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in figure 1, a kind of bellows mechanical seal of the utility model, including rotating shaft 10 and rotating shaft 10 is installed on successively
On rotating ring 20 and stationary ring 30.
The rotating ring 20 is against on stationary ring 30, and rotating ring 20 is connected with rotating shaft 10 and can be synchronous with respect to 30 turns of stationary ring with rotating shaft 10
It is dynamic, drive sleeve 40 is provided with rotating shaft 10, described one end of drive sleeve 40, to overhang and fix corresponding thereto, passes to stationary ring 30
40 other ends of dynamic set are bent to the direction of rotating ring 20 to be extended, and positioning sleeve 50, the positioning are provided between rotating ring 20 and drive sleeve 40
One end of set 50 is bent to form a hook portion 51, and the hook portion 51 is stretched to rotating ring 20 and is hooked on rotating ring 20 so that positioning sleeve 50 is in axle
It is relatively fixed on to direction with rotating ring 20, the other end of positioning sleeve 50 is connected with drive sleeve 40, and spring 60 is provided with rotating shaft 10,
And spring 60 is located between stationary ring 30, drive sleeve 40 and the three of positioning sleeve 50, the both ends of spring 60 are respectively to stationary ring 30 and transmission
The force of set 40.
Using this structure, for spring 60 with spring base 61 with respect to being static for rotating ring 20, the two will not phantom ring 20
Rotate, thus be not easy to be rotated by rotating ring 20 to be influenceed and the phenomenon loosened occur, so as to substantially increase spring 60 and spring base
61 stability, it is more stable when whole mechanical seal structure works, also effectively extend its service life.
As shown in figure 1, spring base 61 is provided between stationary ring 30, drive sleeve 40 and the three of positioning sleeve 50,61 liang of spring base
End inner peripheral is against in stationary ring 30 and drive sleeve 40 respectively, the both ends outer peripheral edge of spring base 61 extend radially outwards and spring 60 two
End is against on the both ends outer peripheral edge of spring base 61 respectively.
This structure of spring base 61 is different from the structure of ball spring abutment 61, and its inner rim offsets with stationary ring 30 and drive sleeve 40,
Outer rim is used to install spring 60, so as to cause the location and installation effect of spring 60 preferable in radial directions, is not easy in radial direction side
Rock upwards, improve the stability of spring base 61 itself and spring 60.
As shown in figure 1, being provided with support 70 between stationary ring 30, drive sleeve 40 and the three of positioning sleeve 50, the support 70 is cut
Face is shaped as M types, and the both ends bending of the support 70 is simultaneously against in stationary ring 30 and drive sleeve 40, the both ends inner circumferential of spring base 61 respectively
Edge bends and born against on the both ends of support 70.
After support 70 is set, spring base 61 and drive sleeve 40 are separated, avoid spring base 61 with the synchronizing moving of drive sleeve 40,
In addition, support 70 also functions to supporting role, the stability of spring base 61 is further improved.
As shown in figure 1, being provided with seal groove 21 around its madial wall on the rotating ring 20, it is provided with seal groove 21 dynamic
Sealing ring 22, the dynamic seal ring 22 push against with rotating ring 20 and rotating shaft 10 respectively.
By setting dynamic seal ring 22, the sealing between rotating ring 20 and rotating shaft 10 is improved, avoids rotating ring 20 and rotating shaft 10
Between there is leakage phenomenon.
As shown in figure 1, one end of the rotating ring 20 is provided with the trundle 23 being connected with impeller, the trundle 23 and installation
Impeller in rotating shaft 10 is engaged, and is connected for 10 2 times with rotating shaft equivalent to rotating ring 20, so as to improve rotating ring 20 and rotating shaft 10
Synchronous effect.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (5)
1. a kind of bellows mechanical seal, including rotating shaft and the rotating ring and stationary ring that are installed on successively in rotating shaft, the rotating ring support
On stationary ring, rotating ring is connected with rotating shaft and can rotated with rotating shaft is synchronous relative to stationary ring, it is characterised in that：Biography is provided with rotating shaft
Dynamic set, to stationary ring to overhang and fix corresponding thereto, the drive sleeve other end prolongs to the bending of rotating ring direction for described drive sleeve one end
Stretch, rotating ring and transmission inner room are provided with positioning sleeve, described positioning sleeve one end is relatively fixed in the axial direction with rotating ring, another
End is connected with drive sleeve, spring is provided with rotating shaft, and spring is located between stationary ring, drive sleeve and positioning sleeve three, the bullet
Spring both ends exert a force to stationary ring and drive sleeve respectively.
A kind of 2. bellows mechanical seal according to claim 1, it is characterised in that：In stationary ring, drive sleeve and positioning sleeve
Be provided with spring base between three, spring base both ends inner peripheral be against respectively stationary ring with drive sleeve, spring base both ends outer peripheral edge to
Outer radial extends and the both ends of spring are against on the both ends outer peripheral edge of spring base respectively.
A kind of 3. bellows mechanical seal according to claim 2, it is characterised in that：In stationary ring, drive sleeve and positioning sleeve
Support is provided between three, the both ends bending of the support is simultaneously against in stationary ring and drive sleeve, spring base both ends inner peripheral respectively
Bend and bear against on the both ends of support.
A kind of 4. bellows mechanical seal according to claim 1, it is characterised in that：Around its madial wall on the rotating ring
Seal groove is provided with, dynamic seal ring is provided with seal groove, the dynamic seal ring pushes against with rotating ring and rotating shaft respectively.
A kind of 5. bellows mechanical seal according to claim 1, it is characterised in that：One end of the rotating ring be provided with
The connected trundle of impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720786993.9U CN206988427U (en) | 2017-06-30 | 2017-06-30 | A kind of bellows mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720786993.9U CN206988427U (en) | 2017-06-30 | 2017-06-30 | A kind of bellows mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206988427U true CN206988427U (en) | 2018-02-09 |
Family
ID=61399218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720786993.9U Expired - Fee Related CN206988427U (en) | 2017-06-30 | 2017-06-30 | A kind of bellows mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206988427U (en) |
Cited By (1)
| 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 |
-
2017
- 2017-06-30 CN CN201720786993.9U patent/CN206988427U/en not_active Expired - Fee Related
Cited By (1)
| 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 |
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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: 20180209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |