CN2382904Y - Air lubrication non-contact type corrugated pipe mechanical sealing device - Google Patents
Air lubrication non-contact type corrugated pipe mechanical sealing device Download PDFInfo
- Publication number
- CN2382904Y CN2382904Y CN 98238993 CN98238993U CN2382904Y CN 2382904 Y CN2382904 Y CN 2382904Y CN 98238993 CN98238993 CN 98238993 CN 98238993 U CN98238993 U CN 98238993U CN 2382904 Y CN2382904 Y CN 2382904Y
- Authority
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- China
- Prior art keywords
- ring
- uncompensated
- compensated
- auxiliary seal
- compensated loop
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 title abstract description 14
- 238000005461 lubrication Methods 0.000 title abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 11
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000013016 damping Methods 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 description 10
- 238000000429 assembly Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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- Mechanical Sealing (AREA)
Abstract
The utility model discloses gas lubrication non-contact bellows mechanical seal device, include by non-compensation ring 1, compensation ring 2, compensation ring seat 22, corrugated metal pipe 23, tailstock 24, the sealing washer 10, 21, 25 constitutes, compensation ring seat 22, corrugated metal pipe 23, tailstock 24 welds the hookup each other, compensation ring 2 passes through sealing washer 21 and compensation ring seat 22's inner ring tang terminal surface grafting fixed coordination hookup, non-compensation ring 1 and 6 fixed hookups of pump body end cover, and sealed to the fitting surface by sealing washer , compensation ring (2) subassembly is through screw and axle (b) fixed hookup by its tailstock (24), it has overcome prior art and has had the movable seal circle and produce the frictional damping, its easy wearing and tearing, the shortcoming of short-lived.
Description
The utility model relates to the shaft sealing device that a kind of limit fluid is leaked along rotating shaft.
Mechanical seal claims end face seal again, be one to prevent the device that working fluid leaks along rotating shaft, keep fitting under the cooperation of the effect of compensation mechanism elastic force and auxiliary seal perpendicular to the end face of spin axis and slide relative and constituting by at least one pair of, shown in accompanying drawing 1, it is by at least one pair of uncompensated ring, the unit that compensated ring component is formed constitutes, promptly by uncompensated ring 1, uncompensated ring 1 auxiliary seal ring 10 and by compensated loop 2, elastic compensating spare 3, compensated loop 2 assemblies that compensated loop driving component 4 and auxiliary seal ring 5 are formed constitute, wherein elastic compensating spare 3 adopts spring, be referred to as the spring mechanical sealing, elastic compensating spare 3 adopts bellows, be referred to as bellows mechanical seal, by a pair of uncompensated ring, the mechanical seal that compensated ring component constitutes claims single mechanical end face seal, by two pairs of uncompensated rings, the mechanical seal that compensated ring component constitutes claims double mechanical seal.
The mechanical seal device that constitutes by compensated loop and uncompensated ring, its compensated loop and uncompensated ring pass through installation component, one is connected with rotating shaft, another is connected with the pump housing, compensated loop is in the state of fitting tightly all the time with the fitting surface of uncompensated ring in relative rotary course, stop medium by sealing.
Have in prior art and offer spiral chute a on the abrasive end face of uncompensated ring or compensated loop, and be the lubricated spring mechanical sealing device of gas of elastic compensating spare with the spring, the fitting surface of its compensated loop and uncompensated ring forms gas film lubrication by the spiral chute a that offers.It is gas that the lubricated spring mechanical sealing device of the gas of single end face can only be applied to medium, the lubricated spring mechanical sealing device of the gas of Double End can be applicable to gas and liquid two media, when the lubricated spring mechanical sealing device of the gas of Double End is used for medium and is liquid, must be by offering injecting hole 60 injection pressure barrier gas in the Seal cage Q of the outer end of mechanical seal device on the end cap 6, stop medium to Seal cage Q internal leakage, the fitting surface that guarantees two pairs of compensated loops and uncompensated ring is under the gaseous environment, could form gas film lubrication, and guarantee its proper functioning, the mechanical seal device of this structure, carry out motive sealing owing to must between compensated loop (rotating ring 2 as shown in Figure 1) and axle b, be provided with rubber auxiliary seal ring 5 on its structure constitutes, to drive compensated loop owing to the string of axle b is moving with spring 3 in its work and carry out servo-actuated, the moving vibration of string about this rubber auxiliary seal ring 5 certainly leads to, rubber auxiliary seal ring 5 is to seal under being in dynamically all the time, auxiliary seal ring 5 long its are rubbed with the hands, easy to wear, life-span is short, and rubber auxiliary seal ring 5 is again to carry out dry friction under the dry gas environment, further quickened the wearing and tearing of rubber auxiliary seal ring 5, made the maintenance period every shortening; In addition, because 5 pairs of compensated loops 2 of rubber auxiliary seal ring move the bigger damping of generation with the servo-actuated of counterbalance spring 3, compensated loop 2 is return in time, produces to cooperate tracing ability bad, so the lubricated spring mechanical sealing device of this gas is also also imperfect.
The purpose of this utility model is to improve at the shortcoming deficiency of prior art, and a kind of good sealing effect is provided, and the gas of long service life lubricates mechanical seal device for rubber bellows.
The utility model comprises that the unit of being made up of at least one pair of uncompensated ring 1 and compensated loop 2 assemblies constitutes, it is characterized in that uncompensated ring 1 comprises by uncompensated ring 1 and auxiliary seal ring 10 thereof constitutes, compensated loop 2 assemblies comprise by compensated loop 2, compensated loop 2 auxiliary seal rings 21, compensated ring adaptor 22, elastic compensating spare----welded metal bellow 23, tailstock 24, tailstock 24 auxiliary seal rings 25 constitute, compensated ring adaptor 22, welded metal bellow 23, tailstock 24 welding each other connects, compensated loop 2 connects with compensated ring adaptor 22 secure fit by auxiliary seal ring 21, offers spiral air drain a on the friction fit seal face of compensated loop 2/ uncompensated ring 1; Compensated loop 2/ uncompensated ring 1 is a stationary ring, and uncompensated ring 1/ compensated loop 2 is a rotating ring.Stationary ring connected with end cap 6 secure fit on the pump case when it use to be installed, and rotating ring connects with a b secure fit.
During its use of the utility model, two is moving, spiral chute a during the stationary ring relative rotation motion of driving system on its fitted seal end face inwardly imports the outer end of gas along ring, gas is compressed after importing, the generation end thrust is with the fitted seal face opening and form gas film lubrication, two is moving, the fitted seal end face of stationary ring is separated and non-contact by air film, it is very little to wear and tear, because compensated ring component is by compensated loop 2, compensated loop 2 auxiliary seal rings 21, compensated ring adaptor 22, welded metal bellow 23, tailstock 24, tailstock 24 auxiliary seal rings 25 constitute, and the auxiliary seal ring on the compensated ring component 2 21,25 all are in the standstill seal state, eliminated moving auxiliary seal ring, also eliminated simultaneously the frictional damping that moving auxiliary seal ring produces, easy to wear with it, life-span is short, produces the problem of leaking, and the dynamic responding speed of compensated loop improves, various function admirables, the various premium properties that it not only can give full play to bellows 23 performance of mechanical seal device is improved, and the tracing ability of its compensated loop are superior.
Fig. 1 is the prior art structural representation.
Fig. 2 is the utility model structural representation.
Fig. 3 is the utility model example structure schematic representation.
Fig. 4 is the utility model example structure schematic representation.
Fig. 5 is the utility model example structure schematic representation.
Fig. 6 is Fig. 2,3,4,5 A-A sectional view.
Below in conjunction with accompanying drawing the utility model is described.
Shown in accompanying drawing 2, the utility model is made of a pair of uncompensated ring 1 and compensated loop 2 assemblies, uncompensated ring 1 is made up of uncompensated ring 1 and the auxiliary seal ring 10 that is arranged on its outer ring surface, compensated loop 2 assemblies are by compensated loop 2, be arranged on the auxiliary seal ring 21 on compensated loop 2 outer ring surfaces, seam annular compensated ring adaptor 22, welded metal bellow 23, ring tailstock 24, tailstock 24 auxiliary seal rings 25 are formed, compensated ring adaptor 22, welded metal bellow 23, tailstock 24 is coaxial welding connection successively each other, compensated loop 2 connects with the interior ring seam end face grafting secure fit of compensated ring adaptor 22 by auxiliary seal ring 21, uncompensated ring 1 is a stationary ring, compensated loop 2 is a rotating ring, on the friction fit end face of uncompensated ring 1, offer spiral air drain a, uncompensated ring 1 connects with end cap 6 secure fit, and seal by 10 pairs of fitting surfaces of auxiliary seal ring, compensated loop 2 assemblies are connected with axle b secure fit by screw by its tailstock 24, and seal by 25 pairs of tailstocks of auxiliary seal ring 24 fitting surface with axle 6, compensated loop 2 rotates with axle b.
The utility model is because uncompensated ring 1 and compensated loop 2 assemblies are parts of a pair of relative rotation motion of driving system, so, can change its relative the relation between motion and rest as required.Referring to accompanying drawing 3 illustrated embodiments, constitute in like manner with structure shown in the above-mentioned accompanying drawing 2, as another kind of by way of example, be with of the relative sound connecting relation exchange of compensated loop 2 assemblies with uncompensated ring 1, be that uncompensated ring 1 connects with axle b secure fit by a seam annular joint sleeve 7, uncompensated ring 1 connects with the interior ring seam end face grafting secure fit of joint sleeve 7, and seal by 10 pairs of fitting surfaces of auxiliary seal ring, seal by 19 pairs of fitting surfaces of auxiliary seal ring between joint sleeve 7 and axle b, make uncompensated ring 1 become rotating ring; Compensated loop 2 assemblies are connected with pump housing end cap 6 secure fit by its tailstock 24, and are sealed by 25 pairs of fitting surfaces of auxiliary seal ring, make compensated loop 2 become stationary ring.
Referring to accompanying drawing 4 illustrated embodiments, the utility model is the Double End form structure, constitute by identical uncompensated ring 1 and the compensated loop 2 assembly unit symmetries of two covers, promptly by uncompensated ring 1,1 ' and compensated loop 2,2 ' assembly constitutes, uncompensated ring 1,1 ' by uncompensated ring 1,1 ' and be arranged on auxiliary seal ring 10 on its outer ring surface, 10 ' form, compensated loop 2,2 ' assembly is by compensated loop 2,2 ', be arranged on compensated loop 2, auxiliary seal ring 21 on 2 ' outer ring surface, 21 ', seam annular compensated ring adaptor 22,22 ', the welding box belongs to bellows 23,23 ', ring tailstock 24,24 ', tailstock 24,24 ' auxiliary seal ring 25,25 ' form, uncompensated ring 1,1 ' be rotating ring, compensated loop 2,2 ' be stationary ring, at uncompensated ring 1,1 ' or compensated loop 2,2 ' counterface on offer spiral air drain a, a ', two uncompensated rings 1,1 ' and compensated loop 2, the stack mounting of 2 ' assembly symmetry.Shown in the accompanying drawing 4, the inner stopper ring end face at two ends, the left and right sides that two uncompensated rings 1,1 ' respectively and main shaft b go up the coupling ring 70 of the axle sleeve 7 that is provided with connects by auxiliary seal ring 10,10 ' grafting secure fit, and two compensated loops 2,2 ' assembly are by its tailstock 24,24 ' respectively and pump housing master end cap 6 and pair end cap 6 ' in auxiliary seal ring 25,25 ' fixing seal connection under cooperating.When using, it in Seal cage Q, injects barrier gas offering injecting hole 60 on the end cap 6.
Referring to accompanying drawing 5 illustrated embodiments, the utility model is the Double End form structure, constitute by identical uncompensated ring 1 and the compensated loop 2 assembly unit symmetries of two covers, promptly by uncompensated ring 1,1 ' and compensated loop 2,2 ' assembly constitutes, uncompensated ring 1,1 ' by uncompensated ring 1,1 ' and be arranged on auxiliary seal ring 10 on its outer ring surface, 10 ' form, compensated loop 2,2 ' assembly is by compensated loop 2,2 ', be arranged on compensated loop 2, auxiliary seal ring 21 on 2 ' outer ring surface, 21 ', seam annular compensated ring adaptor 22,22 ', welded metal bellow 23,23 ', ring tailstock 24,24 ', tailstock 24,24 ' auxiliary seal ring 25,25 ' form, at uncompensated ring 1,1 ' or compensated loop 2,2 ' counterface on offer spiral air drain a, a ', two uncompensated rings 1,1 ' and compensated loop 2, the stack mounting of 2 ' assembly symmetry.It constitutes identical with accompanying drawing 4 illustrated embodiment structures, the different uncompensated rings 1 that just changed, 1 ' and compensated loop 2, the relative sound kinematic relation of 2 ' assembly, it is uncompensated ring 1,1 ' be stationary ring, compensated loop 2,2 ' be rotating ring, shown in the accompanying drawing 5, two compensated loops 2,2 ' assembly is by its tailstock 24, the inner stopper ring end face at the two ends, the left and right sides of the coupling ring 70 of 24 ' respectively axle sleeves 7 that go up to be provided with main shaft b is by auxiliary seal ring 25,25 ' grafting secure fit connects, two uncompensated rings 1,1 ' respectively with pump housing master end cap 6 with pay an end cap 6 ' at auxiliary seal ring 10,10 ' cooperating down, fixing seal connects.
The tailstock 24,24 of its compensated loop 2 of the utility model, 2 ' assembly ' be used for compensated loop 2,2 ' assembly and end cap 6,6 ' or main shaft system (main shaft b or axle sleeve 7) connect, change so its structure shape can change according to actual conditions; End cap 6, axle sleeve 7 etc. are the cooperation auxiliary members that the mechanical seal device that is made of uncompensated ring 1 and compensated loop 2 assemblies is installed, it is not the necessary structural member that constitutes the described mechanical seal device of present technique, and its structure shape can change according to the as installed situation and change.
Claims (2)
1, gas lubricates contactless mechanical seal device for rubber bellows, comprise that the unit of being made up of at least one pair of uncompensated ring (1) and compensated loop (2) assembly constitutes, it is characterized in that uncompensated ring (1) is made up of uncompensated ring (1) and the auxiliary seal ring (10) that is arranged on its outer ring surface, compensated loop (2) assembly is by compensated loop (2), be arranged on the auxiliary seal ring (21) on compensated loop (2) outer ring surface, seam annular compensated ring adaptor (22), welded metal bellow (23), ring tailstock (24), tailstock (24) auxiliary seal ring (25) constitutes, compensated ring adaptor (22), welded metal bellow (23), tailstock (24) is coaxial welding connection successively each other, compensated loop (2) connects with the interior ring seam end face grafting secure fit of compensated ring adaptor (22) by auxiliary seal ring (21), offers spiral air drain (a) on the fitted seal end face of compensated loop (2)/uncompensated ring (1);
1-1, uncompensated ring (1) are stationary ring, compensated loop (2) is a rotating ring, uncompensated ring (1) connects with pump housing end cap (6) secure fit, and fitting surface is sealed by auxiliary seal ring (10), compensated loop (2) assembly is connected with axle (b) secure fit by screw by its tailstock (24), and by auxiliary seal ring (25) fitting surface of tailstock (24) with axle (6) is sealed;
1-2, compensated loop (2) are stationary ring, uncompensated ring (1) is a rotating ring, uncompensated ring (1) is connected with axle (b) secure fit by a seam annular joint sleeve (7), uncompensated ring (1) connects with the interior ring seam end face grafting secure fit of joint sleeve (7), and fitting surface is sealed by auxiliary seal ring (10), by auxiliary seal ring (19) fitting surface is sealed between joint sleeve (7) and axle (b), compensated loop (2) assembly is connected with end cap (6) secure fit by its tailstock (24), and by auxiliary seal ring (25) fitting surface is sealed.
2, mechanical seal device for rubber bellows according to claim 1, it is characterized in that being the Double End form structure, the unit symmetry of being made up of two cover uncompensated rings (1) and compensated loop (2) assembly constitutes, promptly by uncompensated ring (1,1 ') and compensated loop (2,2 ') the assembly formation, uncompensated ring (1,1 ') by uncompensated ring (1,1 ') and be arranged on auxiliary seal ring (10 on its outer ring surface, 10 ') form, compensated loop (2,2 ') assembly is by compensated loop (2,2 '), be arranged on compensated loop (2,2 ') auxiliary seal ring (21 on the outer ring surface, 21 '), seam annular compensated ring adaptor (22,22 '), welded metal bellow (23,23 '), ring tailstock (24,24 '), tailstock (24,24 ') auxiliary seal ring (25,25 ') form, at uncompensated ring (1,1 ') or compensated loop (2,2 ') counterface on offer spiral air drain (a, a '), two uncompensated rings (1,1 ') and compensated ring component (2,2 ') the symmetry combination;
2-1, compensated loop (2,2 ') are stationary ring, uncompensated ring (1,1 ') is a rotating ring, the inner stopper ring end face at the two ends, the left and right sides of the coupling ring (70) of the axle sleeve (7) that two uncompensated rings (1,1 ') go up to be provided with main shaft (b) respectively connects by auxiliary seal ring (10,10 ') grafting secure fit, two compensated loops (2,2 ') assembly by its tailstock (24,24 ') respectively with the pump housing on main end cap (6) and the fixing seal connection under auxiliary seal ring (25,25 ') cooperates of pair end cap (6 ');
2-2, uncompensated ring (1,1 ') are stationary ring, compensated loop (2,2 ') is a rotating ring, the inner stopper ring end face at the two ends, the left and right sides of the coupling ring (70) of the axle sleeve (7) that two compensated loops (2,2 ') assembly go up to be provided with main shaft (b) respectively by its tailstock (24,24 ') connects two uncompensated rings (1,1 ') the fixing seal connection under auxiliary seal ring (10,10 ') cooperates with pump housing master end cap (6) and pair end cap (6 ') respectively by auxiliary seal ring (25,25 ') grafting secure fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98238993 CN2382904Y (en) | 1998-09-29 | 1998-09-29 | Air lubrication non-contact type corrugated pipe mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98238993 CN2382904Y (en) | 1998-09-29 | 1998-09-29 | Air lubrication non-contact type corrugated pipe mechanical sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2382904Y true CN2382904Y (en) | 2000-06-14 |
Family
ID=33986453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98238993 Expired - Lifetime CN2382904Y (en) | 1998-09-29 | 1998-09-29 | Air lubrication non-contact type corrugated pipe mechanical sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2382904Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155541A (en) * | 2011-04-15 | 2011-08-17 | 丹东克隆集团有限责任公司 | Mechanical seal device for compact corrugated pipe |
| CN107387770A (en) * | 2017-07-27 | 2017-11-24 | 丹东锦达密封有限公司 | X-type auxiliary seal ring type mechanically-sealing apparatus |
| CN107643144A (en) * | 2017-10-13 | 2018-01-30 | 江苏恒润波纹管有限公司 | A kind of bellows for being easily installed dismounting |
| CN108254163A (en) * | 2017-12-13 | 2018-07-06 | 太原航空仪表有限公司 | A kind of liquid-filled sensing element service life wire examination method and its Special tooling piece |
| CN110513483A (en) * | 2019-09-17 | 2019-11-29 | 四川日机密封件股份有限公司 | A kind of engine combined sealing structure |
-
1998
- 1998-09-29 CN CN 98238993 patent/CN2382904Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155541A (en) * | 2011-04-15 | 2011-08-17 | 丹东克隆集团有限责任公司 | Mechanical seal device for compact corrugated pipe |
| CN102155541B (en) * | 2011-04-15 | 2013-09-25 | 丹东克隆集团有限责任公司 | Mechanical seal device for compact corrugated pipe |
| CN107387770A (en) * | 2017-07-27 | 2017-11-24 | 丹东锦达密封有限公司 | X-type auxiliary seal ring type mechanically-sealing apparatus |
| CN107643144A (en) * | 2017-10-13 | 2018-01-30 | 江苏恒润波纹管有限公司 | A kind of bellows for being easily installed dismounting |
| CN108254163A (en) * | 2017-12-13 | 2018-07-06 | 太原航空仪表有限公司 | A kind of liquid-filled sensing element service life wire examination method and its Special tooling piece |
| CN110513483A (en) * | 2019-09-17 | 2019-11-29 | 四川日机密封件股份有限公司 | A kind of engine combined sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |