CN102147013A - Air bag-type leakage-proof device - Google Patents
Air bag-type leakage-proof device Download PDFInfo
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- CN102147013A CN102147013A CN2010101109323A CN201010110932A CN102147013A CN 102147013 A CN102147013 A CN 102147013A CN 2010101109323 A CN2010101109323 A CN 2010101109323A CN 201010110932 A CN201010110932 A CN 201010110932A CN 102147013 A CN102147013 A CN 102147013A
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Abstract
The invention relates to an air bag type leakage-proof device which is sleeved on a rotary shaft of a mechanical device and is locked between the device cavity of the mechanical device and a leakage-proof machine piece. The air bag-type leakage-proof device comprises at least one fixed seat which is locked on the device cavity and forms an outer injection air hole, and at least one annular air bag positioned in the fixed seat; and the air bag is elastic and is embedded on the fixed seat, and can move to and fro between an expansion position and an air leakage position. Therefore, when the air bag is inflated to be expanded, the top of the air bag props against the rotary shaft, the efficacy that the leakage of a working fluid of the device cavity is sealed and blocked is achieved, thus when the leakage-proof device is dismounted, the working fluid in the device cavity is not leaked by the blocking of the air bag.
Description
Technical field
The present invention relates to a kind of leakage protection device, particularly relate on a kind of rotatingshaft that is installed on a machinery and and an equipment cavity and leakproof parts between the air sac type leakage protection device.
Background technique
General structure design of stirring the machinery of usefulness, be to be the driving mechanism that is pivoted on the equipment cavity, this driving mechanism has stretches the blade wheel that the rotatingshaft, that places the equipment cavity is locked on the rotatingshaft end, reach one and can drive the power plant that this rotatingshaft rotates, drive this rotatingshaft rotation by these power plant, make this blade wheel to stir action for the working fluid in this equipment cavity.
Seeing also shown in Figure 1ly, is that existing leakproof parts 13 are arranged at the opening of an equipment cavity 12 and the sectional view between this rotatingshaft 11.Because the working fluid in the equipment cavity 12 may be toxic substance; and in the process that stirs; being attended by pressure in the equipment cavity 12 simultaneously produces; so the opening of nearby device cavity 12 can be arranged with leakproof parts 13 usually on rotatingshaft 11, to avoid working fluid in the equipment cavity 12 along with pressure is oozed out by the pivot-connecting position.
Under long-term the use, the working fluids in the equipment cavity 12 may be attached on the leakproof parts 13 and influences the sealing effect of leakproof parts 13, so need regular dismounting leakproof parts 13 to be cleared up and maintenance service.Yet in unloading process, working fluid outflow in the equipment cavity 12 may be caused,, maintenance man's safety can be polluted or even jeopardize if the working fluids in the equipment cavity 12 are toxic substance, therefore quite inconvenient in the operation.
This shows that above-mentioned existing leakproof parts obviously still have inconvenience and defective, and demand urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of air sac type leakage protection device of new structure, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The objective of the invention is is providing a kind of air sac type leakage protection device that working fluid leaks can prevent machinery in repair demolition the time.
The object of the invention to solve the technical problems realizes by the following technical solutions.A kind of air sac type leakage protection device according to the present invention's proposition, on the rotatingshaft that is sheathed on a machinery, and be locked between the equipment cavity and leakproof parts of this machinery, this air sac type leakage protection device comprises, at least one is fixedly arranged on the fixed base on this rotatingshaft, the definition of this fixed base has a processing procedure side that abuts against in this equipment cavity, and one in contrast to this processing procedure side and abut against in the atmospheric side of these leakproof parts; This air sac type leakage protection device also comprises one to have elasticity and is embedded in this fixed base, and the ring-shaped gasbag between this fixed base and this rotatingshaft, and this fixed base comprises at least one outer injecting hole, and at least one locating slot, this air bag comprises a basal wall, two sidewalls that extend by this basal wall both side edges bending respectively, at least one is formed at the wherein positioning part of a sidewall apical margin, and one centered on the plenum space that defines and be communicated in this outer injecting hole by this basal wall and sidewall, this positioning part is to be embedded in this locating slot of this fixed base, wherein, this basal wall is can be with respect to the to-and-fro motion between an expanding position and a disappointing position of this two sidewall, gas is to inject by this outer injecting hole to make this airbag inflation in this plenum space, and this basal wall is to move to this expanding position and be resisted against on this rotatingshaft, after treating air scavenge, this basal wall can be returned to this disappointing position.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Preferably, aforesaid air sac type leakage protection device, wherein this air bag comprises that also at least one is formed at this basal wall surface and towards the fin of this rotatingshaft, when this airbag aeration was made this airbag inflation, this fin was to be resisted against on this rotatingshaft.
Preferably, aforesaid air sac type leakage protection device, wherein the thickness of this basal wall is that to present central authorities thick, the aspect that lateral margin is thin.
Preferably, aforesaid air sac type leakage protection device, wherein the positioning part of this air bag is the flange that is outwards bent extension by a sidewall apical margin wherein.
Preferably, aforesaid air sac type leakage protection device, wherein this fixed base also comprises at least one fixed hole, at least one closure of confession stretches through and this fixed base is locked on this equipment cavity.
Preferably, aforesaid air sac type leakage protection device, wherein this positioning seat comprises two locating slots, and this air bag has two positioning parts that are formed at this two sidewalls apical margin respectively, and described positioning part is to be embedded at respectively in the described locating slot.
Preferably, aforesaid air sac type leakage protection device, wherein this positioning seat comprises two locating slots, and this air bag has two positioning parts that are formed at this two sidewalls apical margin respectively, and described positioning part is to be embedded at respectively in the described locating slot.
Preferably, aforesaid air sac type leakage protection device, wherein this fixed base also comprises first body that abuts against in this equipment cavity, and second body that abuts against in these leakproof parts.
Preferably, aforesaid air sac type leakage protection device, wherein this two locating slot is to be formed at respectively on this first body, second body.
Preferably, aforesaid air sac type leakage protection device should outer injecting hole be to be formed on this first body wherein.
Preferably, aforesaid air sac type leakage protection device should outer injecting hole be to be formed on this second body wherein.
Preferably, aforesaid air sac type leakage protection device, wherein this fixed base also comprises a positioning ring that is folded between this first body, second body and fixes this air bag.
Preferably, aforesaid air sac type leakage protection device, wherein this positioning ring has the interior injecting hole that at least one is communicated in this outer injecting hole, and during to this airbag aeration, gas is to make this airbag inflation by this outer injecting hole, interior injecting hole.
Preferably, aforesaid air sac type leakage protection device, wherein this positioning ring has the pressing part of this air bag of compacting.
Preferably, aforesaid air sac type leakage protection device, wherein the leakproof parts of this air sac type leakage protection device and this machinery are formed in one.
Preferably, aforesaid air sac type leakage protection device wherein also comprises the seal element between at least one processing procedure side that is arranged at this fixed base and this equipment cavity.
Preferably, aforesaid air sac type leakage protection device, wherein this fixed hole is to be formed on this first body.
Preferably, aforesaid air sac type leakage protection device, wherein this fixed hole is to be formed on this second body.
The present invention compared with prior art has tangible advantage and beneficial effect.As known from the above, for achieving the above object, air sac type leakage protection device of the present invention is to be sheathed on the rotatingshaft of a machinery, and be locked between the equipment cavity and leakproof parts of this machinery, this air sac type leakage protection device comprises: at least one fixed base, and a ring-shaped gasbag that is embedded in this fixed base.This fixed base definition has a processing procedure side, and an atmospheric side in contrast to this processing procedure side, and this fixed base is this rotatingshaft of ring set and comprises at least one outer injecting hole, and at least one locating slot, wherein, this processing procedure side is to abut against in this equipment cavity, and this atmospheric side is to abut against in these leakproof parts.This ring-shaped gasbag has elasticity and is embedded in this fixed base, and between this fixed base and this rotatingshaft, this air bag comprises sidewall that a basal wall, two extend by this basal wall both side edges bending respectively, at least one is formed at the wherein positioning part of a sidewall apical margin, and one centered on the plenum space that defines and be communicated in this outer injecting hole by this basal wall and sidewall, this positioning part is to be embedded in the locating slot of this fixed base, wherein, this basal wall is can be with respect to the to-and-fro motion between an expanding position and a disappointing position of this two sidewall.When to this airbag aeration, gas is to inject by this outer injecting hole to make this airbag inflation in this plenum space, and this basal wall is to move to this expanding position and be resisted against on this rotatingshaft, treat air scavenge after, this basal wall can be returned to this disappointing position.
By technique scheme, air sac type leakage protection device of the present invention has following advantage and beneficial effect at least: when this airbag aeration expands, this basal wall can be resisted against on this rotatingshaft, make in dismounting during these leakproof parts that the workflow in this equipment cavity is known from experience the phenomenon that is subjected to the obstruct that this gas assists and does not have leakage.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is that existing leakproof parts are arranged at the opening of an equipment cavity and the sectional view between this rotatingshaft.
Fig. 2 is the cross-sectional schematic of first preferred embodiment of air sac type leakage protection device of the present invention.
Fig. 3 is in air sac type leakage protection device first preferred embodiment of the present invention, the three-dimensional cutaway view of the configuration of air bag.
Fig. 4 is that air bag is positioned at the sectional view of expanding position in air sac type leakage protection device first preferred embodiment of the present invention.
Fig. 5 be air sac type leakage protection device of the present invention second preferred embodiment analyse and observe diagrammatic sketch.
Embodiment
The present invention is described in detail below in conjunction with drawings and Examples, before the present invention is described in detail, is noted that in the following description content that similar elements is to represent with identical numbering.
Seeing also shown in Figure 2ly, is the cross-sectional schematic of first preferred embodiment of air sac type leakage protection device of the present invention.The air sac type leakage protection device of the present invention's first preferred embodiment, be to be sheathed on the rotatingshaft 11 of a machinery, and be locked between the equipment cavity 12 and leakproof parts 13 of this machinery, this air sac type leakage protection device comprises one and is located on the fixed base 2 on this rotatingshaft 11, the ring-shaped gasbag 3 between this rotatingshaft 11 and fixed base 2, and a seal element 4 that is arranged between this fixed base 2 and this equipment cavity 12.Wherein, these leakproof parts 13 can be as leakproof elements such as oil sealing, packing, axle envelope, bearings.
These fixed base 2 definition have a processing procedure side A, an and atmospheric side B in contrast to this processing procedure side A, this fixed base 2 is to be located on this rotatingshaft 11 and to comprise an outer injecting hole 21, two locating slots 22, and fixed hole 23 that confession one closure 14 stretches through, in order to this fixed base 2 is locked on this equipment cavity 12, wherein, this processing procedure side A abuts against in this equipment cavity 12, and this atmospheric side B abuts against in these leakproof parts 13.Wherein, this closure 14 is adjusted with the visual actual conditions of quantity of fixed hole 23, not as limit.
See also Fig. 2 and shown in Figure 3, Fig. 3 is in this preferred embodiment, the three-dimensional cutaway view of the configuration of air bag.This air bag 3 has elasticity and is embedded in this fixed base 2, this air bag 3 comprises that sidewall that a basal wall 31, two extend by this basal wall 31 both side edges bending respectively 32, two are formed at respectively that the positioning part 33 of these two sidewalls, 32 apical margins, three are formed at these basal wall 31 surfaces and towards the fin 34 of this rotatingshaft 11, and one by this basal wall 31 and sidewall 32 center on the plenum space 35 that defines and be communicated in this outer injecting hole 21, this two positioning part 33 is to be embedded at respectively in this two locating slot 22 of this fixed base 2.
What specify is, in present embodiment, each positioning part 33 of this air bag 3 is the flanges that outwards bent extension by each sidewall 32 apical margin, aspect by flange plugs in the locating slot 22 that is positioned this fixed base 2, yet the form of described positioning part 33 is a kind of enforcement aspect, can replace easily for knowing this operator, not as limit.And the number of described fin 34 also can be looked the actual production situation and increase and decrease, equally not as limit.
See also Fig. 2 and shown in Figure 4, Fig. 4 is that air bag is positioned at the sectional view of expanding position in this first preferred embodiment.This basal wall 31 is can be with respect to the to-and-fro motion between an expanding position (Fig. 4) and a disappointing position (Fig. 2) of this two sidewall 32; As shown in Figure 4, during to these air bag 3 inflations, gas is to inject by this outer injecting hole 21 this air bag 3 is expanded, and make this basal wall 31 move to this expanding position, and allow the described fin 34 be to be resisted against on this rotatingshaft 11, after treating air scavenge, this basal wall 31 can be returned to disappointing position as shown in Figure 2.
It should be noted that, the thickness of this basal wall 31 be present central authorities thick, the aspect that lateral margin is thin, the bending place thinner thickness that has a common boundary of this basal wall 31 and this two sidewall 32 just, make this basal wall 31 easier when moving with respect to this two sidewall 32, the thick form of central authorities then can provide this basal wall 31 preferable intensity.
By above-mentioned design, when these leakproof parts 13 need dismounting to clear up with maintenance service, feed gas as long as continue by this outer injecting hole 21, just can make these air bag 3 expansions and allow described fin 34 be resisted against this rotatingshaft 11 and this equipment cavity 12 of block, the situation that can avoid the working fluids in this equipment cavity 12 to leak; Moreover this air sac type leakage protection device designs for card box, and dismounting or assembling are all quite convenient.
See also shown in Figure 5, be air sac type leakage protection device of the present invention second preferred embodiment analyse and observe diagrammatic sketch.The air sac type leakage protection device of the present invention's second preferred embodiment, roughly similar aforementioned this first preferred embodiment, different places are: this fixed base 2 also comprises first body 24 that abuts against in this equipment cavity 12, second body 25 that abuts against in these leakproof parts 13, and one be folded in this first, two bodies 24, between 25 and fix the positioning ring 26 of this air bag 3, this two locating slot 22 be formed at respectively this first, two bodies 24, on 25, in the present embodiment, being somebody's turn to do outer injecting hole 21 and fixed hole 23 is to be formed on this second body 25, certainly this outer injecting hole 21 and fixed hole 23 also can be looked actual manufacturing situation and be formed on this first body 24, not as limit.
This positioning ring 26 has an interior injecting hole 261 that is communicated in this outer injecting hole 21, and the pressing part 262 of this air bag 3 of compacting, in the present embodiment, this pressing part 262 is that side direction is suppressed on the sidewall 32 of this air bag 3, in order to this air bag 3 is firmly located, and during 3 inflations of this air bag, gas is to make this basal wall 31 move to expanding position by this outer injecting hole 21, interior injecting hole 261.
By above-mentioned design, can be except equally as in this first preferred embodiment, outside the leakage of these equipment cavity 12 interior working fluids of block, in the time can producing big pressure in this equipment cavity 12, come more firmly to suppress this air bag 3 of location by this positioning ring 26, and can effectively promote the effect of these air bag 3 block, also promoted the Applicable scope of this air sac type leakage protection device.
In sum, during these air bag 3 inflations, be resisted against on this rotatingshaft 11 by the fin 34 on this basal wall 31, make when these leakproof parts 13 of dismounting, workflow remaining in the equipment cavity 12 is known from experience the phenomenon that is subjected to the obstruct of this air bag 3 and does not have leakage, so can reach purpose of the present invention really.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (18)
1. air sac type leakage protection device, on the rotatingshaft that is sheathed on a machinery, and be locked between the equipment cavity and leakproof parts of this machinery, this air sac type leakage protection device comprises: at least one is fixedly arranged on the fixed base on this rotatingshaft, this fixed base definition has a processing procedure side that abuts against in this equipment cavity, and one in contrast to this processing procedure side and abut against in the atmospheric side of these leakproof parts, it is characterized in that: this air sac type leakage protection device also comprises one to have elasticity and is embedded in this fixed base, and the ring-shaped gasbag between this fixed base and this rotatingshaft, and this fixed base comprises at least one outer injecting hole, and at least one locating slot, this air bag comprises a basal wall, two sidewalls that extend by this basal wall both side edges bending respectively, at least one is formed at the wherein positioning part of a sidewall apical margin, and one centered on the plenum space that defines and be communicated in this outer injecting hole by this basal wall and sidewall, this positioning part is to be embedded in this locating slot of this fixed base, wherein, this basal wall is can be with respect to the to-and-fro motion between an expanding position and a disappointing position of this two sidewall, gas is to inject by this outer injecting hole to make this airbag inflation in this plenum space, and this basal wall is to move to this expanding position and be resisted against on this rotatingshaft, after treating air scavenge, this basal wall can be returned to this disappointing position.
2. air sac type leakage protection device as claimed in claim 1 is characterized in that: this air bag comprises that also at least one is formed at this basal wall surface and towards the fin of this rotatingshaft, when this airbag aeration was made this airbag inflation, this fin was to be resisted against on this rotatingshaft.
3. air sac type leakage protection device as claimed in claim 1 or 2 is characterized in that: the thickness of this basal wall is that to present central authorities thick, the aspect that lateral margin is thin.
4. air sac type leakage protection device as claimed in claim 3 is characterized in that: the positioning part of this air bag is the flange that is outwards bent extension by a sidewall apical margin wherein.
5. air sac type leakage protection device as claimed in claim 1 is characterized in that: this fixed base also comprises at least one fixed hole, and at least one closure of confession stretches through and this fixed base is locked on this equipment cavity.
6. air sac type leakage protection device as claimed in claim 1 is characterized in that: this positioning seat comprises two locating slots, and this air bag has two positioning parts that are formed at this two sidewalls apical margin respectively, and described positioning part is to be embedded at respectively in the described locating slot.
7. air sac type leakage protection device as claimed in claim 5 is characterized in that: this positioning seat comprises two locating slots, and this air bag has two positioning parts that are formed at this two sidewalls apical margin respectively, and described positioning part is to be embedded at respectively in the described locating slot.
8. air sac type leakage protection device as claimed in claim 7 is characterized in that: this fixed base also comprises first body that abuts against in this equipment cavity, and second body that abuts against in these leakproof parts.
9. air sac type leakage protection device as claimed in claim 8 is characterized in that: this two locating slot is to be formed at respectively on this first body, second body.
10. air sac type leakage protection device as claimed in claim 8 is characterized in that: this outer injecting hole is to be formed on this first body.
11. air sac type leakage protection device as claimed in claim 8 is characterized in that: this outer injecting hole is to be formed on this second body.
12. air sac type leakage protection device as claimed in claim 8 is characterized in that: this fixed base also comprises a positioning ring that is folded between this first body, second body and fixes this air bag.
13. air sac type leakage protection device as claimed in claim 12 is characterized in that: this positioning ring has at least one interior injecting hole that is communicated in this outer injecting hole, and during to this airbag aeration, gas is to make this airbag inflation by this outer injecting hole, interior injecting hole.
14. air sac type leakage protection device as claimed in claim 12 is characterized in that: this positioning ring has the pressing part of this air bag of compacting.
15. air sac type leakage protection device as claimed in claim 1 is characterized in that: the leakproof parts of this air sac type leakage protection device and this machinery are formed in one.
16. air sac type leakage protection device as claimed in claim 1 is characterized in that: also comprise the seal element between at least one processing procedure side that is arranged at this fixed base and this equipment cavity.
17. air sac type leakage protection device as claimed in claim 8 is characterized in that: this fixed hole is to be formed on this first body.
18. air sac type leakage protection device as claimed in claim 8 is characterized in that: this fixed hole is to be formed on this second body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101109323A CN102147013A (en) | 2010-02-08 | 2010-02-08 | Air bag-type leakage-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101109323A CN102147013A (en) | 2010-02-08 | 2010-02-08 | Air bag-type leakage-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102147013A true CN102147013A (en) | 2011-08-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101109323A Pending CN102147013A (en) | 2010-02-08 | 2010-02-08 | Air bag-type leakage-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102147013A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977736A (en) * | 2014-05-30 | 2014-08-13 | 福建南方路面机械有限公司 | Shaft-end sealing mechanism of stirring shaft and sealing method of shaft-end sealing mechanism |
| CN107061749A (en) * | 2017-03-20 | 2017-08-18 | 北京化工大学 | Sealing body, shaft sealer and control method |
| CN113746051A (en) * | 2021-08-13 | 2021-12-03 | 国网山东省电力公司电力科学研究院 | Cable trench fireproof sealant construction device, fireproof device and construction method |
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| DE3220595A1 (en) * | 1982-06-01 | 1983-12-01 | Howaldtswerke-Deutsche Werft Ag Hamburg Und Kiel, 2300 Kiel | Auxiliary seal for shafts, in particular propeller shafts |
| CN1041030A (en) * | 1988-05-07 | 1990-04-04 | 布隆福斯造船公司 | The seal arrangement that is used for rotating shaft, especially stern tube seal system |
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| CN201187580Y (en) * | 2008-04-25 | 2009-01-28 | 东台船用配件有限公司 | Metal composite ring type water lubricating trailing axle seal device |
| CN201377584Y (en) * | 2008-12-02 | 2010-01-06 | 江苏华阳重工科技股份有限公司 | U-type air diverting ring for ship air-pressure sealing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1176045A (en) * | 1967-11-14 | 1970-01-01 | Crane Packing Ltd | Rotary Mechanical Face Seal. |
| DE3220595A1 (en) * | 1982-06-01 | 1983-12-01 | Howaldtswerke-Deutsche Werft Ag Hamburg Und Kiel, 2300 Kiel | Auxiliary seal for shafts, in particular propeller shafts |
| CN1041030A (en) * | 1988-05-07 | 1990-04-04 | 布隆福斯造船公司 | The seal arrangement that is used for rotating shaft, especially stern tube seal system |
| CN2881232Y (en) * | 2006-01-09 | 2007-03-21 | 东台船用配件有限公司 | Rubber-ring type water lubricating stern shaft sealing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977736A (en) * | 2014-05-30 | 2014-08-13 | 福建南方路面机械有限公司 | Shaft-end sealing mechanism of stirring shaft and sealing method of shaft-end sealing mechanism |
| CN103977736B (en) * | 2014-05-30 | 2016-03-30 | 福建南方路面机械有限公司 | For sealing mechanism for shaft end and the encapsulating method thereof of shaft |
| CN107061749A (en) * | 2017-03-20 | 2017-08-18 | 北京化工大学 | Sealing body, shaft sealer and control method |
| CN107061749B (en) * | 2017-03-20 | 2019-11-26 | 北京化工大学 | Shaft sealer and control method |
| CN113746051A (en) * | 2021-08-13 | 2021-12-03 | 国网山东省电力公司电力科学研究院 | Cable trench fireproof sealant construction device, fireproof device and construction method |
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Application publication date: 20110810 |