CN102606737A - Composite clamping box type double-shaft seal - Google Patents
Composite clamping box type double-shaft seal Download PDFInfo
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- CN102606737A CN102606737A CN2011100251383A CN201110025138A CN102606737A CN 102606737 A CN102606737 A CN 102606737A CN 2011100251383 A CN2011100251383 A CN 2011100251383A CN 201110025138 A CN201110025138 A CN 201110025138A CN 102606737 A CN102606737 A CN 102606737A
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Abstract
The invention discloses a composite clamping box type double-shaft seal, which comprises a seal cover unit, a shaft sleeve unit, an outer sealing unit and an inner sealing unit. The seal cover unit comprises a seal cover component; the shaft sleeve unit comprises a shaft sleeve penetrating through the seal cover component; the outer sealing unit comprises a conveying ring and an outer sealing mechanism, wherein the conveying ring is arranged on the shaft sleeve and located in an accommodating space of the seal cover component, and the outer sealing mechanism is arranged on the seal cover component and is sleeved on the shaft sleeve. The inner sealing unit comprises an inner sealing mechanism and a flexible mechanism, wherein the shaft sleeve and the conveying ring are sleeved on the shaft sleeve at intervals, and the flexible mechanism and the inner sealing mechanism are sleeved on the shaft sleeve in a combining way. By means of the deformation amount of a corrugated pipe of the flexible mechanism, the composite clamping box type double-shaft seal can bear the axial pressure, radial pressure and the torsion force, absorb the vibration and reduce the vibration and wear between members; therefore, the double-shaft seal is suitable to the field which is at the high temperature and likely to generate steam shock due to the fact that the process liquid is easy to vaporize.
Description
Technical field
The present invention relates to a kind of envelope, particularly relate to a kind of high temperature that is applicable to and be prone to the compound card box twin shaft envelope of vaporization processing procedure.
Background technique
The axle envelope is installed on the wall and the mandrel gap location of rotary machine equipment, is used to avoid fluid or gas in the rotary machine equipment to be oozed out by gap location.Twin shaft envelope then is that to be used in the processing procedure fluid of being carried when rotary machine equipment be volatile substance (VOC), or tool toxicity, acrid material, again or need do on the rotary machine equipment of situations such as high temperature cooling.
Consult Fig. 1; TaiWan, China is announced " the clamping type gland seal device that rotary machine is used " novel patent No. 459938; This gland seal device 2 includes one and is sheathed on the axle 10 of a rotary machine 1 and axle sleeve 21, with an end cap 211 is sheathed on the outside and first swivel becket group 22, that be positioned at the axis hole 12 of this rotary machine 1 of this axle sleeve 21 versatilely to be sheathed on this axle sleeve 21 versatilely outside and be positioned at these axis hole 12 nearly end places and enclosing cover 24, that first axle collar 23, that is connected with this first swivel becket group 22 is locked on this rotary machine 1 and fixing this first axle collar 23 of butt is arranged at outside this axle sleeve 21 and is positioned at the second swivel becket group 25 of this enclosing cover 24, reaches one and is placed on this axle sleeve 21 and is positioned at these enclosing cover 24 outsides and is fixed in second axle collar 26 on this axle 10 jointly with this axle sleeve 21.
This first swivel becket group 22 comprise one be connected with each other with the end cap 211 of this axle sleeve 21 first swivel becket 221, one with this first swivel becket 221 first seat ring 222, separately first butt ring 223 of butt first swivel becket 221 and first seat ring 222 respectively, reach several two ends and push up spring 224 respectively to this first axle collar 23 and this first seat ring 222.
This enclosing cover 24 comprises that the inner ring surface 241, that run through by this axle sleeve 21 is formed at the containing groove 242 on this inner ring surface 241, the inlet 243 of this containing groove 242 of a radial communication, and one with these inlet 243 outlets 244 of this containing groove 242 of radial communication at intervals.
This second swivel becket group 25 comprises that one is fixedly arranged on axle sleeve 21 is fixedly arranged on second seat ring 252 on the inner ring surface 241 of enclosing cover 24, this second swivel becket 251 of a butt and this second seat ring 252 with second swivel becket 251, with axle 10 turns the second butt ring 253, and several two ends are resisted against the spring 254 of this enclosing cover 24 and this second seat ring 252 respectively.Wherein, be formed with several guiding gutters 255 on the outer circumferential face of this second swivel becket 251.
When the axle 10 of rotary machine 1 is rotated with the transmission fluid; Fluid can produce axial pressure to gland seal device 2, at this moment, and can be through the elastic-restoring force of said spring 224,254; This first butt ring 223 of difference packing, first seat ring 222 and first swivel becket 221; And this second seat ring 252, the second butt ring 253 and second swivel becket 251, the axial pressure that this fluid produced of contending with is jointly guaranteed the sealed against leakage effect; Utilize the continuous toggle action that can be produced simultaneously with the said guiding gutter 255 of second swivel becket 251 of these axle 10 rotations; Naturally import again by outlet 244 discharges by inlet 243 swimmingly to guide isolated liquid; Make it under the state that does not need the isolated hydraulic coupling of extra increase; Reach the cool cycles effect, simultaneously the poisonous fluid of ability separation process side.
If when being used to handle high temperature or being prone to the fluid of vaporization; Fluid not only can produce axially and radial pressure total; Also can produce radial pressure and torsion to the first swivel becket group 22 in the axis hole 12; The vapour shake also can take place and influence integrally-built stability in fluid vaporization simultaneously, and has influenced the sealed against leakage effect of this first swivel becket group 22, and has significantly shortened the working life of this gland seal device 2.
Summary of the invention
The object of the present invention is to provide a kind of effectively absorbing vibration, reduce the vibrations abrasion, and can increase the compound card box twin shaft envelope in life-span when being used in high temperature or being prone to the vaporization processing procedure.
Compound card box twin shaft envelope of the present invention is used to be installed in a machinery cavity; This machinery cavity comprises that a district is separated out the outer wall of a processing procedure side and an atmospheric side; This compound card box twin shaft package contains: capping unit, one wear the axle sleeve unit of this capping unit, an external sealed unit that is located on this axle sleeve unit, and one is located on the interior sealing unit on this axle sleeve unit with this external sealed unit interval.
This capping unit comprises a closure assemblies that is arranged on this outer wall and is formed with a containing space, at least one is formed on this closure assemblies and be communicated with the inflow entrance of this containing space, and at least one is formed on this closure assemblies at intervals with this inflow entrance and is communicated with the outflow opening of this containing space.
This axle sleeve unit comprises an axle sleeve that wears this closure assemblies; This external sealed unit comprises that a transfer rings that is arranged on this axle sleeve and is arranged in this containing space, one are arranged on the closure assemblies and the external sealed mechanism of sheathed this axle sleeve, and at least one pushes against the elastic component in this external sealed mechanism.
Should in sealing unit comprise an interior sealing mechanism with this sheathed this axle sleeve in transfer rings compartment of terrain; And one with should in sealing mechanism mechanism with flexible elements of sheathed this axle sleeve in combination, this mechanism with flexible elements has one and pushes against in this ring seat on sealing mechanism, one and be connected in the bellows on this ring.
The object of the invention and solve its technical problem and also can adopt following technical measures further to realize.
Preferably, aforesaid compound card box twin shaft envelope, wherein this axle sleeve has an end cap portions in contrast to this closure assemblies, and a sleeve part that connects this end cap portions and wear this closure assemblies.
Preferably; Aforesaid compound card box twin shaft envelope; Wherein should in the interior sealing mechanism of sealing unit have one and be arranged on this closure assemblies and the interior stationary ring of the sleeve part of this axle sleeve of ring set; And pushing tow is in this on stationary ring and the interior swivel becket of the end cap portions of this axle sleeve of ring set, and one between this closure assemblies with this in interior black box between stationary ring, and the ring seat of this mechanism with flexible elements be with this in swivel becket combine.
Preferably; Aforesaid compound card box twin shaft envelope; The mechanism with flexible elements that wherein is somebody's turn to do interior sealing unit also has one and is positioned at the end cap portions of this axle sleeve and the auxiliary seal assembly between this ring-type fitting seat; And locating piece that is used to combine the end cap portions of this ring-type fitting seat and this axle sleeve; This auxiliary seal assembly is between between this ring-type fitting seat and this end cap portions, and this ring-type fitting seat then is to be arranged on the end cap portions of this axle sleeve and to be formed with a radial location hole, and this locating piece is to wear this radial location hole to combine the end cap portions of this ring-type fitting seat and this axle sleeve.
Preferably; Aforesaid compound card box twin shaft envelope; Wherein the external sealed mechanism of this external sealed unit has one and is arranged on this closure assemblies and the outer stationary ring of the sleeve part of this axle sleeve of ring set; And one push against in this outside on the stationary ring and this transfer rings respectively and the outer swivel becket of the sleeve part of this axle sleeve of ring set, and the two ends of this elastic component are to push up respectively to this closure assemblies and stationary ring outside this.
Preferably; Aforesaid compound card box twin shaft envelope; Wherein should in the interior sealing mechanism of sealing unit have one and be arranged on this closure assemblies and the interior stationary ring of the sleeve part of this axle sleeve of ring set; And pushing tow is in this on stationary ring and the interior swivel becket of the end cap portions of this axle sleeve of ring set; And the ring seat of this mechanism with flexible elements be with this in swivel becket combine; And should in the ring-type fitting seat of mechanism with flexible elements of sealing unit have second pedestal of first pedestal that is connected with each other with this bellows, and this first pedestal space, and the packing assembly of axial this first, second pedestal of connection, this auxiliary seal assembly is between between the end cap portions of this first, second pedestal and this axle sleeve and by this packing assembly institute packing.
Preferably; Aforesaid compound card box twin shaft envelope; Wherein the external sealed mechanism of this external sealed unit has one and is arranged on this closure assemblies and the outer stationary ring of the sleeve part of this axle sleeve of ring set, one push against the outer swivel becket of the sleeve part of outside this stationary ring and this axle sleeve of ring set; And a compression ring that is pressed against on this outer swivel becket, and the two ends of this elastic component are to push up respectively to this transfer rings and this compression ring.
Preferably, aforesaid compound card box twin shaft envelope, the mechanism with flexible elements of sealing unit also has second a spiral guide channel that is formed on this ring-type fitting seat in wherein being somebody's turn to do.
Preferably, aforesaid compound card box twin shaft envelope, wherein this capping unit also comprises a flushing hole that runs through this closure assemblies and be communicated with this processing procedure side.
Preferably; Aforesaid compound card box twin shaft envelope; Wherein should in the interior sealing mechanism of sealing unit have interior swivel becket, a pushing tow interior stationary ring on the swivel becket in this that an end cap portions with this axle sleeve mutually combines; And one between this end cap portions with should in interior black box between swivel becket, the ring seat of the mechanism with flexible elements of this interior sealing unit is to push against in this on stationary ring, and this ring-type fitting seat is to be arranged on this closure assemblies.
Preferably; Aforesaid compound card box twin shaft envelope; The mechanism with flexible elements of sealing unit also has a black box that is positioned between this closure assemblies and this ring-type fitting seat in wherein being somebody's turn to do; And a locating piece that is used to combine this ring-type fitting seat and this closure assemblies, and being formed with a radial location hole on this ring-type fitting seat, this locating piece is to wear this radial location hole to combine this ring-type fitting seat and this closure assemblies.
Preferably, aforesaid compound card box twin shaft envelope wherein is formed with one first spiral guide channel on the end cap portions outer circumferential face of this axle sleeve.
Preferably, aforesaid compound card box twin shaft envelope wherein is formed with at least one guide groove on the transfer rings outer circumferential face of this external sealed unit, and this guide groove is that whorl is located on this transfer rings outer circumferential face.
Preferably, aforesaid compound card box twin shaft envelope wherein is formed with several guide grooves on this transfer rings outer circumferential face.
Preferably, aforesaid compound card box twin shaft envelope, wherein this axle sleeve unit also comprises a driving mechanism that is arranged on this axle sleeve, this driving mechanism has a driving component on the end of compeling to close in this sleeve part in contrast to this end cap portions.
Preferably, aforesaid compound card box twin shaft envelope, wherein the driving mechanism of this axle sleeve unit also has one and is placed and be pressed against the drive cover of this sleeve part on the end of this end cap portions by this driving component.
Preferably; Aforesaid compound card box twin shaft envelope; Wherein the closure assemblies of this capping unit has the outer seal that an interior capping, on the outer wall that is arranged at this machinery cavity is incorporated in this in capping and is positioned at this atmospheric side; And one between this outer seal with this in lid black box between capping, this outer seal matches with interior capping and defines this containing space.
Preferably, aforesaid compound card box twin shaft envelope wherein should compound card box twin shaft envelope also comprise a steam orifice that is formed on this closure assemblies, reached an axle bush that is arranged on this closure assemblies and is placed by this axle sleeve.
Preferably; Aforesaid compound card box twin shaft envelope; Wherein the external sealed mechanism of this external sealed unit has one and is arranged on this closure assemblies and the outer stationary ring of the sleeve part of this axle sleeve of ring set; And one push against in this outside on the stationary ring and this transfer rings respectively and the outer swivel becket of the sleeve part of this axle sleeve of ring set, and the two ends of this elastic component are to push up respectively to this closure assemblies and stationary ring outside this.
Preferably; Aforesaid compound card box twin shaft envelope; Wherein should in the interior sealing mechanism of sealing unit have one and be arranged on this closure assemblies and the interior stationary ring of the sleeve part of this axle sleeve of ring set; And pushing tow is in this on stationary ring and the interior swivel becket of the end cap portions of this axle sleeve of ring set; And the ring seat of this mechanism with flexible elements be with this in swivel becket combine, and should in the ring-type fitting seat of mechanism with flexible elements of sealing unit have second pedestal of first pedestal that is connected with each other with this bellows, and this first pedestal space and the packing assembly of axial this first, second pedestal of connection; This auxiliary seal assembly is between between the end cap portions of this first, second pedestal and this axle sleeve and by this packing assembly institute packing, and this radial location hole then is to be formed on this second pedestal.
Useful effect of the present invention is: the amount of deformation that utilizes this bellows; Bear the vapour shake of the high-temperature vapour that axial pressure, radial pressure and torsion produces with the vibrations of absorption equipment itself and processing procedure liquid; Reduce the vibrations abrasion between member; Promote structure stability, keeping whole sealed against leakage effect, and promote whole working life.
Description of drawings
Fig. 1 is a sectional view, explains that TaiWan, China announces the aspect of No. 459938 " the clamping type gland seal device that rotary machine is used " novel patent case.
Fig. 2 is a sectional view, and first preferred embodiment of the compound card box twin shaft envelope of the present invention is described.
Fig. 3 is a three-dimensional cutaway view, and the aspect of the mechanism with flexible elements in this first preferred embodiment is described.
Fig. 4 is a sectional view, and second preferred embodiment of the compound card box twin shaft envelope of the present invention is described.
Fig. 5 is a sectional view, and the 3rd preferred embodiment of the compound card box twin shaft envelope of the present invention is described.
Fig. 6 is a sectional view, and the 4th preferred embodiment of the compound card box twin shaft envelope of the present invention is described.
Fig. 7 is a sectional view, and the 5th preferred embodiment of the compound card box twin shaft envelope of the present invention is described.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.Before the present invention is described in detail, be noted that in following description similarly assembly is represented with identical numbering.
Consult Fig. 2; First preferred embodiment of the compound card box twin shaft of the present invention envelope 3 comprises the axle sleeve unit 5, that a capping unit 4, wears this capping unit 4 and is located on the external sealed unit 6 on this axle sleeve unit 5, and one is placed in the interior sealing unit 7 on this axle sleeve unit 5 with these external sealed unit 6 spacer rings.
This capping unit 4 comprises a closure assemblies 41, at least one inflow entrance 42 that is formed on this closure assemblies 41; And at least one and this inflow entrance 42 are formed at the outflow opening 43 on this closure assemblies 41 at intervals; This closure assemblies 41 have capping in the outer seal 411 that mutually combines and one 412, one between this outer seal 411 with this in the lid black box 413 of 412 of cappings; And the containing space 414 that matches and define by this outer seal 411 and interior capping 412, this inflow entrance 42 is formed on this outer seal 411 at intervals with outflow opening 43 and is communicated with this containing space 414.In this preferred embodiment, the outer seal 411 and the interior capping 412 of this closure assemblies 41 mutually combine, and certainly, in practical application, the outer seal 411 and the interior capping 412 of this closure assemblies 41 also can be integrated, are not limit by the open of present embodiment.
This axle sleeve unit 5 comprises that one wears the axle sleeve 51 of this outer seal 411 and interior capping 412; And one be arranged at an end of this axle sleeve 51 driving mechanism 52; This axle sleeve 51 has the sleeve part 512 that an end cap portions 511, in contrast to this driving mechanism 52 connects this end cap portions 511 and wears this outer seal 411 and interior capping 412; And the Simmer ring assembly 513 that is embedded on these end cap portions 511 inner peripheral surfaces; This driving mechanism 52 has the driving component 521, compeling to close on the end in this sleeve part 512 in contrast to this end cap portions 511 by the drive cover 522 of this sleeve part 512 that this driving component 521 places and is pressed against on the end of this end cap portions 511.
This external sealed unit 6 comprises that one is arranged on the sleeve part 512 of this axle sleeve 51 and the transfer rings 61, that is arranged in this containing space 414 is arranged on the outer seal 411 and is sheathed on the external sealed mechanism 62 of this axle sleeve 51; Reach several and push against the elastic component 63 (only showing a wherein elastic component 63 in because of visual angle graph of a relation 3) in this external sealed mechanism 62, be formed with a guide groove 611 on the outer circumferential face of this transfer rings 61.These guide groove 611 whorls are located on the outer circumferential face of this transfer rings 61 in this preferred embodiment, and said elastic component 63 is pressure springs.
This external sealed mechanism 62 has one and is arranged on this outer seal 411 and the outer stationary ring 621, of the sleeve part 512 of this axle sleeve 51 of ring set pushes against outside this on the stationary ring 621 and this transfer rings 61 respectively and the exterior seal assembly of the outer swivel becket of the sleeve part 512 of this axle sleeve 51 of ring set 622, a stationary ring 621 and 411 of this outer seals outside this 623, a swivel becket 622 outside this is connected black box 624 with first of 61 of this transfer rings; And one is connected black box 625 between second of 512 of the sleeve part of this transfer rings 61 and this axle sleeve 51, and push up respectively to this outer seal 411 and stationary ring 621 outside this at the two ends of said elastic component 63.
Consult Fig. 2,3, in this sealing unit 7 comprise one be sheathed on this axle sleeve 51 and be positioned at this axle sleeve 51 with should capping 412 sealing mechanism 71, and one be somebody's turn to do interior sealing mechanism 71 and be sheathed on the mechanism with flexible elements 72 of this axle sleeve 51 in combination.
Should in sealing mechanism 71 have one and be arranged in this in capping 412 and the interior stationary ring 711, of the sleeve part 512 of this axle sleeve 51 of ring set pushes in this on stationary ring 711 and the interior swivel becket 712 of the end cap portions 511 of this axle sleeve 51 of ring set, and one in this capping 412 be somebody's turn to do in the interior black box 713 of 711 of stationary rings.
This mechanism with flexible elements 72 has one and pushes against in this ring seat on sealing mechanism 71 721, one and be connected in the second spiral guide channel 720 that end cap portions 511 that ring-type fitting seat 723, that bellows 722, on this ring seat 721 is connected in these bellows 722 opposite sides is positioned at this axle sleeve 51 and the auxiliary seal assembly 724, of 723 of this ring-type fitting seats are formed at these ring-type fitting seat 723 outer periphery, and one be used to combine the end cap portions 511 of this ring-type fitting seat 723 and this axle sleeve 51 locating piece 725.Wherein, The ring seat 721 of this mechanism with flexible elements 72 combines with this interior swivel becket 712; This ring-type fitting seat 723 then is arranged on the end cap portions 511 of this axle sleeve 51 and is formed with a radial location hole 726; The two ends of this bellows 722 are connected with respectively on this ring seat 721 and this ring-type fitting seat 723; This auxiliary seal assembly 724 is between 511 of this ring-type fitting seat 723 and this end cap portions, and this locating piece 725 wears this radial location hole 726 to combine the end cap portions 511 of this ring-type fitting seat 723 and this axle sleeve 51.
In this preferred embodiment; The ring seat 721 of this mechanism with flexible elements 72, bellows 722 and ring-type fitting seat 723 are all made with metallic material; Certainly; This bellows 722 also can be to utilize nonmetallic material such as Teflon to process, and still can reach identical effect, does not exceed with present embodiment.
Consult Fig. 2, this compound card box twin shaft envelope 3 is installed on the machinery cavity 300, and this machinery cavity 300 comprises that a district is separated out the outer wall 301 of a processing procedure side A and an atmospheric side B, reach one be arranged in this outer wall 301 rotationally rotating shaft 302.
The closure assemblies 41 of this compound card box twin shaft envelope 3 is positioned at this atmospheric side B, and is arranged on this outer wall 301 with capping in this 412; And this axle sleeve 51 is worn by the rotating shaft 302 of this machinery cavity 300; This external sealed unit 6 lays respectively among this atmospheric side B and this processing procedure side A with being somebody's turn to do interior 7 of sealing units, and the end cap portions 511 of this axle sleeve 51 is positioned at this processing procedure side A, and this driving mechanism 52 then is positioned at this atmospheric side B so that this axle sleeve 51 is incorporated into this rotating shaft 302.
What this will specify be,, also can omit this drive cover 522, still can reach identical effect if the thickness of the sleeve part 512 of this axle sleeve 51 is enough to supply this driving component 521 to place the location and this axle sleeve 51 is incorporated in this rotating shaft 302.
When starting these rotating shaft 302 rotations; Utilize the driving mechanism 52 that combines this axle sleeve 51 and this rotating shaft 302; Make this axle sleeve 51 can be by these rotating shaft 302 driven rotary, the outer swivel becket 622, transfer rings 61, interior swivel becket 712 and this mechanism with flexible elements 72 that are connected with on this axle sleeve 51 of interlock rotates synchronously simultaneously; Cooperate this lid black box 413, exterior seal assembly 623, first to connect that black box 624, second connects black box 625, interior black box 713, auxiliary seal assembly 724 and between 513 effects that can form sealed against leakage of shaft seal assembly of 51 on this rotating shaft 302 and this axle sleeve.
And the second spiral guide channel 720 of this mechanism with flexible elements 72 also expels crystal or the impurity particle of processing procedure side A in the lump, preventing the situation of each member cause clogging, and then reaches better sealing leakage-proof effect.
And be positioned at the bellows 722 of the mechanism with flexible elements 72 of processing procedure side A; Not only can absorb among the processing procedure side A the axial axial pressure that produces through compressive strain along this rotating shaft 302; More can pass through to encircle relatively the bending deflection of seat 721 and ring-type fitting seat 723; Absorb rotating shaft 302 rotation time issuable moments of institute and radial pressure to lower even to absorb issuable vibrations fully, increase the stability when rotating, reduce the vibrations abrasion between member; Keeping whole sealed against leakage effect, and promote whole working life.
Be that good with bellows 722 vibration strengths that metallic material is made, the high temperature process that is highly resistant to processing procedure side A produces steam and the vapour shake phenomenon that causes what this will specify.
In addition; Completely cut off liquid (figure does not show) to this containing space 414 by these inflow entrance 42 inputs; The effect of stirring continuously that cooperation is produced with the guide groove 611 on transfer rings 61 outer circumferential faces of this axle sleeve 51 rotation synchronously; Force isolated liquid to quicken to flow, and continue the isolated liquid of guiding and flow into the back from this inflow entrance 42 and discharge from this outflow opening 43, and can be under the state that not need the isolated hydraulic coupling of extra increase; Just can reach excellent cool cycles effect, can effectively completely cut off the issuable toxic substance of processing procedure side A simultaneously.
Consult Fig. 4; Second preferred embodiment of the compound card box twin shaft envelope 3 of the present invention; Roughly identical with this first preferred embodiment; Place inequality is: the ring-type fitting seat 723 of this mechanism with flexible elements 72 have one be connected with each other with this bellows 722 first pedestal 727, one with this first pedestal 727 second pedestal 728 separately, and the axial packing assembly 729 of this first, second pedestal 727,728 of connection, this auxiliary seal assembly 724 is between 511 of the end cap portions of this first, second pedestal 727,728 and this axle sleeve 51; And by 729 packings of this packing assembly, this radial location hole 726 then is formed on second pedestal 728.Thereby provide a kind of aspect that is different from this first preferred embodiment to supply the user to select.
Consult Fig. 5; The 3rd preferred embodiment of the compound card box twin shaft envelope 3 of the present invention; Roughly identical with this first preferred embodiment; Comprise the axle sleeve unit 5, that a capping unit 4, wears this capping unit 4 and be located on the external sealed unit 6 on this axle sleeve unit 5, and one is placed in the interior sealing unit 7 on this axle sleeve unit 5 with these external sealed unit 6 spacer rings.Place inequality is: the external sealed mechanism 62 of external sealed unit 6 also has the compression ring 626 that is pressed against on this outer swivel becket 622; And push up respectively to this transfer rings 61 and this compression ring 626 (only showing a wherein elastic component 63 in because of visual angle graph of a relation 6) at the two ends of said elastic component 63; And this capping unit 4 also have one run through this outer seal 411 with should in the flushing hole 44 of capping 412, and this flushing hole 44 is communicated with this atmospheric side B and this processing procedure side A.Can feed liquid through this flushing hole 44, so that dash the said member of this interior sealing unit 7 of profit.
Consult Fig. 6; The 4th preferred embodiment of the compound card box twin shaft envelope 3 of the present invention; Roughly identical with the 3rd preferred embodiment; Place inequality is: this capping unit 4 comprises that also one is formed at the steam orifice 45 on this outer seal 411, and with the axle bush 8 that is arranged on the outer seal 411 of this closure assemblies 41 and placed by this axle sleeve 51, and this inflow entrance 42 and outflow opening 43 are formed at respectively in this in capping 412 and this outer seal 411.Under the environment of low temperature, can produce heat insulation effect for the isolated liquid in this inflow entrance 42, the outflow opening 43 through these steam orifice 45 input steams, also can clean the particle crystal that 6 places, external sealed unit produce.
Consult Fig. 7; The 5th preferred embodiment of the compound card box twin shaft envelope 3 of the present invention; Roughly identical with this first preferred embodiment; Comprise the axle sleeve unit 5, that a capping unit 4, wears this capping unit 4 and be located on the external sealed unit 6 on this axle sleeve unit 5, and one be placed in the interior sealing unit 7 on this axle sleeve unit 5 with these external sealed unit 6 spacer rings, place inequality is: interior stationary ring 711 of the interior sealing mechanism 71 of sealing unit 7 mutually combines with the end cap portions 511 of this axle sleeve 51 in this; Should in swivel becket 712 pushing tows in this on stationary ring 711, and should in black box 713 between this end cap portions 511 be somebody's turn to do in 711 of stationary rings.And be formed with several guide grooves 611 on these transfer rings 61 outer circumferential faces.In this preferred embodiment, said guide groove 611 axially is formed on the outer circumferential face of this transfer rings 61, and certainly, said guide groove 611 also can at interval and be formed obliquely on the outer circumferential face of this transfer rings 61.
Should in the ring seat 721 of mechanism with flexible elements 72 of sealing unit 7 push against in this on swivel becket 712; This ring-type fitting seat 723 is arranged in this interior capping 412; This auxiliary seal assembly 724 then is positioned at 723 of this capping 412 and this ring-type fitting seats, this locating piece 725 wear this radial location hole 726 with combine this ring-type fitting seat 723 with should in capping 412.And be formed with one first spiral guide channel 514 on end cap portions 511 outer circumferential faces of this axle sleeve 51.
When this axle sleeve 51 rotates, can utilize this first spiral guide channel 514 that crystal or the impurity particle of processing procedure side A are expelled in the lump, preventing the situation of each member cause clogging, and then reach better sealing leakage-proof effect.
In sum, the compound card box twin shaft envelope 3 of the present invention is utilized the compressive strain of this bellows 722, absorbs the rotating shaft 302 rotation time issuable moment of institute and radial pressure and axial pressures; Solved in high temperature or the easy vaporization processing procedure because of producing the problem that steam causes the vapour shake; To lower even the issuable vibrations of absorption; Increase the stability when rotating, reduce the vibrations abrasion between member, to keep whole sealed against leakage effect; And promote whole working life, so can reach the object of the invention really.
Claims (20)
1. a compound card box twin shaft seals; Be used to be installed in a machinery cavity; This machinery cavity comprises that a district is separated out the outer wall of a processing procedure side and an atmospheric side; This compound card box twin shaft package contains a capping unit, one and wears the axle sleeve unit of this capping unit, an external sealed unit that is located on this axle sleeve unit; And one be located on the interior sealing unit on this axle sleeve unit with this external sealed unit interval; This capping unit comprises a closure assemblies that is arranged on this outer wall and is formed with a containing space, at least one is formed on this closure assemblies and be communicated with the inflow entrance of this containing space; Reach the outflow opening that at least one is formed on this closure assemblies at intervals with this inflow entrance and is communicated with this containing space; This axle sleeve unit comprises an axle sleeve that wears this closure assemblies; This external sealed unit comprises that a transfer rings that is arranged on this axle sleeve and is arranged in this containing space, one are arranged on the closure assemblies and the external sealed mechanism of sheathed this axle sleeve, and at least one pushes against the elastic component in this external sealed mechanism, and sealing unit comprises an interior sealing mechanism with this sheathed this axle sleeve in transfer rings compartment of terrain in this; It is characterized in that: in this sealing unit also comprise one with should in sealing mechanism mechanism with flexible elements of sheathed this axle sleeve in combination, this mechanism with flexible elements has the bellows that a ring seat that pushes against sealing mechanism in this and are connected in this ring.
2. compound card box twin shaft envelope according to claim 1; It is characterized in that: this axle sleeve has an end cap portions in contrast to this closure assemblies; And a sleeve part that connects this end cap portions and wear this closure assemblies, mechanism with flexible elements of sealing unit also has a ring-type fitting seat that is connected in this bellows opposite side in this.
3. compound card box twin shaft envelope according to claim 2; It is characterized in that: the interior sealing mechanism of sealing unit has one and is arranged on this closure assemblies and the interior stationary ring of the sleeve part of this axle sleeve of ring set in this; And pushing tow is in this on stationary ring and the interior swivel becket of the end cap portions of this axle sleeve of ring set; And one between this closure assemblies with should in interior black box between stationary ring, and the ring seat of this mechanism with flexible elements with this in swivel becket combine.
4. compound card box twin shaft envelope according to claim 3; It is characterized in that: the mechanism with flexible elements of this interior sealing unit also has one and is positioned at the end cap portions of this axle sleeve and the auxiliary seal assembly between this ring-type fitting seat; And locating piece; This ring-type fitting seat then is arranged on the end cap portions of this axle sleeve and is formed with a radial location hole, and this locating piece is arranged in this radial location hole to combine the end cap portions of this ring-type fitting seat and this axle sleeve.
5. compound card box twin shaft envelope according to claim 2; It is characterized in that: the external sealed mechanism of this external sealed unit has one and is arranged on this closure assemblies and the outer stationary ring of the sleeve part of this axle sleeve of ring set; And one push against in this outside on the stationary ring and this transfer rings respectively and the outer swivel becket of the sleeve part of this axle sleeve of ring set, and push up respectively to this closure assemblies and stationary ring outside this at the two ends of this elastic component.
6. compound card box twin shaft envelope according to claim 4; It is characterized in that: the interior sealing mechanism of sealing unit has one and is arranged on this closure assemblies and the interior stationary ring of the sleeve part of this axle sleeve of ring set in this; And pushing tow is in this on stationary ring and the interior swivel becket of the end cap portions of this axle sleeve of ring set; And the ring seat of this mechanism with flexible elements combines with this interior swivel becket; And should in the ring-type fitting seat of mechanism with flexible elements of sealing unit have second pedestal of first pedestal that is connected with each other with this bellows, and this first pedestal space; And a packing assembly that axially connects this first pedestal, second pedestal, this auxiliary seal assembly is between between the end cap portions of this first pedestal, second pedestal and this axle sleeve and by this packing assembly institute packing.
7. compound card box twin shaft envelope according to claim 2; It is characterized in that: the external sealed mechanism of this external sealed unit has one and is arranged on this closure assemblies and the outer stationary ring of the sleeve part of this axle sleeve of ring set, one push against the outer swivel becket of the sleeve part of outside this stationary ring and this axle sleeve of ring set; And a compression ring that is pressed against on this outer swivel becket, and push up respectively to this transfer rings and this compression ring at the two ends of this elastic component.
8. compound card box twin shaft envelope according to claim 2, it is characterized in that: mechanism with flexible elements of sealing unit also has second a spiral guide channel that is formed on this ring-type fitting seat in this.
9. compound card box twin shaft envelope according to claim 1, it is characterized in that: this capping unit also comprises a flushing hole that runs through this closure assemblies and be communicated with this processing procedure side.
10. compound card box twin shaft envelope according to claim 2; It is characterized in that: the interior sealing mechanism of sealing unit has interior stationary ring, a pushing tow interior swivel becket on the stationary ring in this that an end cap portions with this axle sleeve mutually combines in this; And one between this end cap portions with this in interior black box between swivel becket; Should in the ring seat of mechanism with flexible elements of sealing unit push against in this on swivel becket, and this ring-type fitting seat is arranged on this closure assemblies.
11. compound card box twin shaft envelope according to claim 10; It is characterized in that: mechanism with flexible elements of sealing unit also has an auxiliary seal assembly that is positioned between this closure assemblies and this ring-type fitting seat in this; And locating piece; And being formed with a radial location hole on this ring-type fitting seat, this locating piece wears this radial location hole to combine this ring-type fitting seat and this closure assemblies.
12. compound card box twin shaft envelope according to claim 10 is characterized in that: be formed with one first spiral guide channel on the end cap portions outer circumferential face of this axle sleeve.
13. compound card box twin shaft envelope according to claim 1, it is characterized in that: be formed with at least one guide groove on the transfer rings outer circumferential face of this external sealed unit, this guide groove whorl is located on this transfer rings outer circumferential face.
14. compound card box twin shaft envelope according to claim 1 is characterized in that: be formed with several guide grooves on this transfer rings outer circumferential face.
15. compound card box twin shaft envelope according to claim 2; It is characterized in that: this axle sleeve unit also comprises a driving mechanism that is arranged on this axle sleeve, and this driving mechanism has a driving component on the end of compeling to close in this sleeve part in contrast to this end cap portions.
16. compound card box twin shaft envelope according to claim 15 is characterized in that: the driving mechanism of this axle sleeve unit also has one and is placed and be pressed against the drive cover of this sleeve part on the end of this end cap portions by this driving component.
17. compound card box twin shaft envelope according to claim 1; It is characterized in that: the closure assemblies of this capping unit has the outer seal that an interior capping, on the outer wall that is arranged at this machinery cavity is incorporated in this in capping and is positioned at this atmospheric side; And one between this outer seal with this in lid black box between capping, this outer seal matches with interior capping and defines this containing space.
18. compound card box twin shaft envelope according to claim 1 is characterized in that: this compound card box twin shaft envelope also comprises a steam orifice that is formed on this closure assemblies, and an axle bush that is arranged on this closure assemblies and is placed by this axle sleeve.
19. compound card box twin shaft envelope according to claim 4; It is characterized in that: the external sealed mechanism of this external sealed unit has one and is arranged on this closure assemblies and the outer stationary ring of the sleeve part of this axle sleeve of ring set; And one push against in this outside on the stationary ring and this transfer rings respectively and the outer swivel becket of the sleeve part of this axle sleeve of ring set, and push up respectively to this closure assemblies and stationary ring outside this at the two ends of this elastic component.
20. compound card box twin shaft envelope according to claim 19; It is characterized in that: the interior sealing mechanism of sealing unit has one and is arranged on this closure assemblies and the interior stationary ring of the sleeve part of this axle sleeve of ring set in this; And pushing tow is in this on stationary ring and the interior swivel becket of the end cap portions of this axle sleeve of ring set; And the ring seat of this mechanism with flexible elements combines with this interior swivel becket; And should in the ring-type fitting seat of mechanism with flexible elements of sealing unit have second pedestal of first pedestal that is connected with each other with this bellows, and this first pedestal space; And a packing assembly that axially connects this first pedestal, second pedestal, this auxiliary seal assembly is between between the end cap portions of this first pedestal, second pedestal and this axle sleeve and by this packing assembly institute packing, and this radial location hole then is formed on this second pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110025138.3A CN102606737B (en) | 2011-01-24 | 2011-01-24 | Compound cartridge type double-shaft seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110025138.3A CN102606737B (en) | 2011-01-24 | 2011-01-24 | Compound cartridge type double-shaft seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102606737A true CN102606737A (en) | 2012-07-25 |
| CN102606737B CN102606737B (en) | 2015-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110025138.3A Active CN102606737B (en) | 2011-01-24 | 2011-01-24 | Compound cartridge type double-shaft seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102606737B (en) |
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| CN103075517A (en) * | 2013-01-16 | 2013-05-01 | 苏瑞益 | Multi-end surface combined mechanical seal |
| CN104514889A (en) * | 2014-12-26 | 2015-04-15 | 大连华阳密封股份有限公司 | Mechanical seal applicable to enamel reaction kettle |
| CN104514885A (en) * | 2014-12-26 | 2015-04-15 | 大连华阳密封股份有限公司 | Bellows mechanical seal applicable to crystallization work condition |
| CN106683718A (en) * | 2017-03-03 | 2017-05-17 | 清华大学天津高端装备研究院 | Penetration piece suitable for high-temperature environment and nuclear facilities |
| CN108060635A (en) * | 2017-11-28 | 2018-05-22 | 交通运输部公路科学研究所 | The oblique effective location sealing device of ripple in concrete segment precast assembly |
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| CN104514889A (en) * | 2014-12-26 | 2015-04-15 | 大连华阳密封股份有限公司 | Mechanical seal applicable to enamel reaction kettle |
| CN104514885A (en) * | 2014-12-26 | 2015-04-15 | 大连华阳密封股份有限公司 | Bellows mechanical seal applicable to crystallization work condition |
| CN106683718A (en) * | 2017-03-03 | 2017-05-17 | 清华大学天津高端装备研究院 | Penetration piece suitable for high-temperature environment and nuclear facilities |
| CN108060635A (en) * | 2017-11-28 | 2018-05-22 | 交通运输部公路科学研究所 | The oblique effective location sealing device of ripple in concrete segment precast assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102606737B (en) | 2015-09-23 |
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