CN205978468U - Bellows mechanical seal member - Google Patents
Bellows mechanical seal member Download PDFInfo
- Publication number
- CN205978468U CN205978468U CN201621013360.6U CN201621013360U CN205978468U CN 205978468 U CN205978468 U CN 205978468U CN 201621013360 U CN201621013360 U CN 201621013360U CN 205978468 U CN205978468 U CN 205978468U
- Authority
- CN
- China
- Prior art keywords
- bellows
- mechanical seal
- ring
- corrugated tube
- clamping sleeve
- 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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- Mechanical Sealing (AREA)
Abstract
The utility model discloses a bellows mechanical seal member, including two subassemblies that spring and symmetry set up, arbitrary subassembly all includes bellows, rotating ring, still including setting up the cover that compresses tightly the bellows outside, the bellows include with the outer loop portion that compresses tightly set inner wall butt, and the inner ring portion of pivot butt to and the connecting portion of connection outer loop portion and inner ring portion, outer loop portion cover is equipped with the annular on locating the rotating ring in the inner ring portion, including fixing in the annular and having the set hoop of the power of tightening up to inner ring portion, be equipped with dorsad the bellying that the bellows extends in the set hoop, be equipped with the through -hole of its circumference equipartition of a plurality of edges on the bellying, compress tightly the cover and including the inserted sheet of a plurality of grafting in the through -hole, compress tightly the fixed part of putting formation in and being used for fixed spring. Set hoop and compress tightly the effect that the cover has the fastening bellows, it can compress tightly the bellows, even bellows elasticity weakens and also can receive the restriction of set hoop and is connected closely with the pivot, reduces the possibility of bellows department emergence leakage.
Description
Technical field
This utility model is related to a kind of sealing member, particularly to a kind of bellows mechanical seal.
Background technology
At present, disclosed in prior art number the Chinese patent for CN101413511A to disclose a kind of new pump mechanical
Sealing, by two corrugated tubes in original mechanical seal for pump are synthesized a corrugated tube, can be efficiently against friction
The all relative displacements producing in secondary flexibility installation process, simultaneously corrugated tube also play a part buffering vibration and impact, thus
Effectively increase the service life of friction pair.
When using, including the spring base being arranged between corrugated tube and spring, spring base plays protection ripple to such scheme
Pipe is not by the effect of spring wear.Spring has pressure to both sides spring base, corrugated tube, rotating ring in the axial direction, make rotating ring with quiet
Ring is fitted and is reached the purpose of sealing.The corrugated tube of quality of rubber materials has auxiliary seal effect, but after a long time use, ripple
Manage aging, flexibility decrease, and corrugated tube is diametrically not affected by pressure, corrugated tube is susceptible to loosen and leads to corrugated tube to connect
Place's sealing declines.
Utility model content
In view of the shortcomings of the prior art, the purpose of this utility model is to provide a kind of bellows mechanical seal,
Its good sealing effect when using.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of corrugated tube machinery is close
Sealing, including spring and symmetrically arranged two assemblies, random component all includes corrugated tube, rotating ring, also includes being arranged on ripple
Clamping sleeve outside stricture of vagina pipe, the internal ring portion that the outer portion that corrugated tube includes abutting with clamping sleeve inwall is abutted with rotating shaft, and connect
Outer portion and the connecting portion of internal ring portion；Outer portion is sheathed on rotating ring, and internal ring portion is provided with annular groove；Including being fixed in annular groove simultaneously
Have the collar of tightening force to internal ring portion, collar is provided with the lobe that dorsad corrugated tube extends, lobe be provided with some along it
The uniform through hole of circumference, clamping sleeve includes some inserted sheets being plugged in through hole, clamping sleeve is formed for fixing consolidating of spring
Determine portion.
By adopting technique scheme, the relative displacement in friction pair flexibility installation process can be mended by corrugated tube
Repay, corrugated tube has buffering vibration and the protective effect of impact simultaneously；Collar has the effect of fastening corrugated tube, and it can be tightened up
Internal ring portion, even if ripple tubular elastic weakens also can be completely embedded with rotating shaft by the restriction of collar, is reduced and occurs at corrugated tube
The probability of leakage；Clamping sleeve also has the effect of tightening up simultaneously, outer portion can be tightened up on rotating ring so that outer portion with dynamic
It is not easy between ring produce leakage；And the fixed part for fixing spring is formed on clamping sleeve, it is to avoid spring directly and compresses
Set contact, can slow down the abrasion to corrugated tube for the spring；In addition, clamping sleeve is provided with the inserted sheet in the through hole being plugged on collar,
Make between clamping sleeve and collar, to form relatively stable position relationship, structure is more firm；Therefore, this utility model was using
The sealing property of corrugated tube link position can be improved in journey, improve the service life of product.
This utility model is further arranged to：Including the stationary ring abutting with rotating ring, stationary ring is externally provided with stationary ring set.
By adopting technique scheme, stationary ring is externally provided with stationary ring and covers so that stationary ring fixation, is not likely to produce and is pumped
The phenomenon that medium is overthrown and spinned.
This utility model is further arranged to：The section of described connecting portion is Z-shape.
By adopting technique scheme, connecting portion is Z-shape, its upper and lower surface all not with clamping sleeve and shaft contacts, its
Decrease frictional resistance and frictional dissipation in use；Connecting portion also has buffering vibration and the effect of impact, works as rotating ring
After having worn and torn, in the axial direction length compensation is carried out to rotating ring.
This utility model is further arranged to：Described connecting portion is provided with regulation cavity with compression inner room.
By adopting technique scheme, rotating shaft rotates, and bellows mechanical seal can occur in use unavoidably
Vibration, adjusts cavity and just has cushioning effect, be subject to during alleviation clamping sleeve up-down vibration weares and teares.
This utility model is further arranged to：The outer surface of described stationary ring set is provided with two bulge loops.
By adopting technique scheme, bulge loop increased the frictional force that stationary ring covers outer surface, so that stationary ring is covered and outer set
Part can be more firm when connecting.
This utility model is further arranged to：Described corrugated tube adopts nitrile rubber manufacture, and described stationary ring adopts aluminium oxide
Pottery manufactures.
By adopting technique scheme, preferably, wearability is higher for the oil resistivity of nitrile rubber, and thermostability is preferable, bonding
Power is strong, and the corrugated tube service life using this material is long, easy to process.Aluminium oxide ceramics have preferable conductivity, mechanical strength
And heat-resisting quantity, using this material static-ring structure firmly, relative inexpensiveness.
In sum, this utility model has the advantages that：
1st, collar and clamping sleeve have the effect fastening corrugated tube, and it can compress corrugated tube, reduce and occur at corrugated tube
The probability of leakage；
2nd, spring plays free compensating action to rotating ring in axial wearing clearance, makes rotating ring and stationary ring annexation jail
Gu；
3rd, the contact surface between rotating ring and stationary ring all reaches and tightly fits, good airproof performance.
Brief description
Fig. 1 is the sectional view of the present embodiment.
Reference：1st, rotating ring；2nd, corrugated tube；21st, outer portion；22nd, connecting portion；23rd, internal ring portion；231st, annular groove；3rd, tight
Circle；31st, lobe；311st, through hole；4th, clamping sleeve；41st, inserted sheet；42nd, fixed part；5th, stationary ring；6th, stationary ring set；61st, bulge loop；7th, bullet
Spring；8th, adjust cavity.
Specific embodiment
Below in conjunction with accompanying drawing, this utility model is described in further detail.
It should be noted that word "front", "rear", "left", "right", "up" and "down" refer to used in describing below
Direction in accompanying drawing.
Embodiment：A kind of bellows mechanical seal, as shown in figure 1, include being symmetricly set on rotating ring 1 in rotating shaft, quiet
Ring 5, corrugated tube 2.
Corrugated tube 2 includes the outer portion 21 of integral structure, connecting portion 22, internal ring portion 23, and the section of connecting portion 22 is in Z
Shape, internal ring portion 23 is used for abutting with rotating shaft.Internal ring portion 23 is provided with an annular groove 231, is fixed with collar 3, collar in annular groove 231
3 are provided with the lobe 31 that dorsad corrugated tube 2 extends, and lobe 31 is provided with some through holes 311 uniform along its circumference, collar
3 section is L-shaped；
Corrugated tube 2 is externally provided with clamping sleeve 4, and clamping sleeve 4 is abutted with outer portion 21, and clamping sleeve 4 includes some being plugged on through hole
Inserted sheet 41 in 311, clamping sleeve 4 can move up and down in through hole 311.Collar 3 and clamping sleeve 4 are made up of elastic metallic, and have
There is the annular element of opening, and there is the effect tightened up to center, principle is similar to jump ring.
It is provided with a regulation cavity 8 between connecting portion 22 and clamping sleeve 4.
The cross section of clamping sleeve 4 is Z-shape and is formed with fixed part 42, is fixed with one between symmetrically arranged two fixed parts 42
Individual spring 7.Spring 7 compresses the rotating ring 1 of both sides with stationary ring 5 so as to contact surface all reaches fits tightly.
The inner side of outer portion 21 is abutted with rotating ring 1, and the left side of rotating ring 1 is abutted with stationary ring 5, and stationary ring 5 is externally provided with stationary ring set 6,
The outer surface of stationary ring set 6 is provided with two bulge loops 61, and bulge loop 61 increased the frictional force on stationary ring set 6, stationary ring set 6 and outer set
The annexation of part is more firm.
During use, stationary ring 5 is typically secured on the pump housing, and spring 7 compresses the rotating ring 1 of both sides, stationary ring 5, both end face laminatings
And produce friction pair, form small axial gap between friction pair and reach the purpose of sealing.It is close that corrugated tube 2 has auxiliary
Envelope effect, collar 3 and clamping sleeve 4 diametrically compress corrugated tube 2 so that sealing can between corrugated tube 2 and rotating ring 1 and rotating shaft
Lean on.
This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility model
Field technique personnel can make to the present embodiment after reading this specification as needed does not have the modification of creative contribution, but
As long as all being protected by Patent Law in right of the present utility model.
Claims (6)
1. a kind of bellows mechanical seal, including spring (7) and symmetrically arranged two assemblies, random component all includes ripple
Stricture of vagina pipe (2), rotating ring (1), is characterized in that：Also include being arranged on corrugated tube (2) clamping sleeve (4) outward, corrugated tube (2) includes and pressure
The internal ring portion (23) that the outer portion (21) that tight set (4) inwall abuts is abutted with rotating shaft, and connect outer portion (21) and internal ring portion
(23) connecting portion (22)；Outer portion (21) is sheathed on rotating ring (1), and internal ring portion (23) is provided with annular groove (231)；Including fixation
There is the collar (3) of tightening force in annular groove (231) and to internal ring portion (23), collar (3) is provided with what dorsad corrugated tube (2) extended
Lobe (31), lobe (31) is provided with some through holes (311) uniform along its circumference, and clamping sleeve (4) includes some grafting
Inserted sheet (41) in through hole (311), the upper formation of clamping sleeve (4) is used for fixing the fixed part (42) of spring (7).
2. bellows mechanical seal according to claim 1, is characterized in that：Including the stationary ring abutting with rotating ring (1)
(5), stationary ring (5) is externally provided with stationary ring set (6).
3. bellows mechanical seal according to claim 1, is characterized in that：The section of described connecting portion (22) is Z-shape.
4. bellows mechanical seal according to claim 3, is characterized in that：Described connecting portion (22) and clamping sleeve (4)
Between be provided with regulation cavity (8).
5. bellows mechanical seal according to claim 2, is characterized in that：Set on the outer surface of described stationary ring set (6)
There are two bulge loops (61).
6. bellows mechanical seal according to claim 2, is characterized in that：Described corrugated tube (2) adopts nitrile rubber
Manufacture, described stationary ring (5) adopts aluminium oxide ceramics manufacture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621013360.6U CN205978468U (en) | 2016-08-30 | 2016-08-30 | Bellows mechanical seal member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621013360.6U CN205978468U (en) | 2016-08-30 | 2016-08-30 | Bellows mechanical seal member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205978468U true CN205978468U (en) | 2017-02-22 |
Family
ID=58039414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621013360.6U Expired - Fee Related CN205978468U (en) | 2016-08-30 | 2016-08-30 | Bellows mechanical seal member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205978468U (en) |
Cited By (2)
| 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 |
| CN108980356A (en) * | 2018-09-19 | 2018-12-11 | 龙口矿业集团有限公司 | The mechanically-sealing apparatus of cryogenic liquid pump |
-
2016
- 2016-08-30 CN CN201621013360.6U patent/CN205978468U/en not_active Expired - Fee Related
Cited By (2)
| 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 |
| CN108980356A (en) * | 2018-09-19 | 2018-12-11 | 龙口矿业集团有限公司 | The mechanically-sealing apparatus of cryogenic liquid pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20170222 Termination date: 20210830 |