CN102606737B - Compound cartridge type double-shaft seal - Google Patents
Compound cartridge type double-shaft seal Download PDFInfo
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- CN102606737B CN102606737B CN201110025138.3A CN201110025138A CN102606737B CN 102606737 B CN102606737 B CN 102606737B CN 201110025138 A CN201110025138 A CN 201110025138A CN 102606737 B CN102606737 B CN 102606737B
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Abstract
A kind of compound cartridge type double-shaft seal, comprises a capping unit, a shaft sleeve unit, an external sealed unit, and sealing unit in.This capping unit comprises a closure assemblies; This shaft sleeve unit comprises the axle sleeve that is arranged in this closure assemblies, and this external sealed unit comprises one and to be arranged on this axle sleeve and to be arranged in the transfer rings of the containing space of this closure assemblies, and one to be arranged on closure assemblies and the external sealed mechanism of this axle sleeve sheathed.This interior sealing unit comprise one with the interior sealing mechanism on this axle sleeve sheathed of this transfer rings compartment of terrain, and one and the mechanism with flexible elements of this interior sealing mechanism in combination on this axle sleeve sheathed.Utilize the amount of deformation of the bellows of this mechanism with flexible elements, bear axial pressure, radial pressure and torsion and absorbing vibration, the vibrations abrasion between minimizing component, are applicable to high temperature and processing procedure liquid is easily vaporized and the occasion of vapour shake occurs.
Description
Technical field
The present invention relates to a kind of shaft seal, particularly relate to a kind of high temperature that is applicable to and easily to vaporize the compound cartridge type double-shaft seal of processing procedure.
Background technique
Shaft seal is installed on wall and the mandrel gap location of rotary machine equipment, is oozed out by gap location for avoiding the fluid in rotary machine equipment or gas.Double-shaft seal is then that to be used in the process fluid carried when rotary machine equipment be volatile substance (VOC), or tool toxicity, acrid material, again or need do on the rotary machine equipment of the situations such as High-temperature cooling.
Consult Fig. 1, TaiWan, China announces No. 459938 " the clamping type gland seal device of rotary machine use " new patent, this gland seal device 2 to include in an axle 10 being sheathed on a rotary machine 1 and has the axle sleeve 21 of an end cap 211, one is sheathed on this axle sleeve 21 outside actively and is positioned at the first swivel becket group 22 of the axis hole 12 of this rotary machine 1, one is sheathed on this axle sleeve 21 outside actively and is positioned at the nearly one end place of this axis hole 12 and first axle collar 23 be connected with this first swivel becket group 22, one is locked on this rotary machine 1 and abuts the enclosing cover 24 fixing this first axle collar 23, one to be arranged at this axle sleeve 21 outer and be positioned at the second swivel becket group 25 of this enclosing cover 24, and one to be placed on this axle sleeve 21 and to be positioned at this enclosing cover 24 outside and to be jointly fixed on second axle collar 26 in this axle 10 with this axle sleeve 21.
This first swivel becket group 22 comprises the first abutment ring 223 that first swivel becket 221, be mutually connected with the end cap 211 of this axle sleeve 21 and this first swivel becket 221 the first seat ring 222, separately abut the first swivel becket 221 and the first seat ring 222 respectively, and the spring 224 of several two ends this first axle collar 23 of contact and this first seat ring 222 respectively.
This enclosing cover 24 comprises one to be formed at this containing groove 242 of containing groove 242, radial communication on this inner ring surface 241 entrance 243 by the inner ring surface 241, that this axle sleeve 21 runs through, and one and the outlet 244 of this entrance 243 this containing groove 242 of radial communication at intervals.
This second swivel becket group 25 comprises one and is fixedly arranged on axle sleeve 21 abuts this second swivel becket 251 and this second seat ring 252 the second abutment ring 253 with the second seat ring 252, be fixedly arranged on the second swivel becket 251, of axle 10 turn on the inner ring surface 241 of enclosing cover 24, and several two ends are resisted against the spring 254 of this enclosing cover 24 and this second seat ring 252 respectively.Wherein, the outer circumferential face of this second swivel becket 251 is formed with several guiding gutter 255.
When the axle 10 of rotary machine 1 rotates to transmit fluid, fluid can produce axial pressure to gland seal device 2, now, can through the elastic-restoring force of described spring 224,254, this the first abutment ring 223, first seat ring 222 and first swivel becket 221 of packing respectively, and this second seat ring 252, second abutment ring 253 and second swivel becket 251, the axial pressure that this fluid that jointly contends with produces, guarantees sealing and anti-leakage effect; Utilize the continuous toggle action that the described guiding gutter 255 of second swivel becket 251 that can rotate with this axle 10 produces simultaneously, naturally imported by entrance 243 swimmingly discharged by outlet 244 again to guide isolated liquid, it is made not need under the extra state increasing isolated hydraulic coupling, reach cool cycles effect, simultaneously the toxic fluid of energy separation process side.
If during fluid for the treatment of high temperature or easily vaporization, fluid not only can produce axis and radial pressure to total, also can produce radial pressure and torsion to the first swivel becket group 22 in axis hole 12, also can there is vapour shake and affect integrally-built stability in fluid vaporization simultaneously, and have impact on the sealing and anti-leakage effect of this first swivel becket group 22, and significantly shorten the working life of this gland seal device 2.
Summary of the invention
The object of the present invention is to provide one can effective absorbing vibration, reduce vibrations abrasion, and be used in high temperature or easily vaporization processing procedure time can increase the compound cartridge type double-shaft seal in life-span.
Compound cartridge type double-shaft seal of the present invention is for being arranged on a machinery cavity, this machinery cavity comprises the outer wall that separates out a processing procedure side and an atmospheric side, this compound cartridge type double-shaft seal comprises: capping unit, shaft sleeve unit, an external sealed unit be located in this shaft sleeve unit wearing this capping unit, and an interior sealing unit be located on this external sealed unit interval in this shaft sleeve unit.
This capping unit comprise one to be arranged on this outer wall and be formed with the closure assemblies of a containing space, at least one to be formed on this closure assemblies and to be communicated with the inflow entrance of this containing space, and at least one to be formed at intervals with this inflow entrance on this closure assemblies and to be communicated with the outflow opening of this containing space.
This shaft sleeve unit comprises the axle sleeve that wears this closure assemblies, this external sealed unit comprise one to be arranged on this axle sleeve and be arranged in the transfer rings of this containing space, one to be arranged on closure assemblies and the external sealed mechanism of this axle sleeve sheathed, and at least one pushes against the elastic component in this external sealed mechanism.
This interior sealing unit comprise one with the interior sealing mechanism of this transfer rings compartment of terrain this axle sleeve sheathed, and one with the mechanism with flexible elements of this interior sealing mechanism this axle sleeve sheathed in combination, this mechanism with flexible elements has one and pushes against the ring seat on this interior sealing mechanism, a bellows be connected in this ring seat, and the elastic component of this external sealed unit is Compress Spring.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Preferably, aforesaid compound cartridge type double-shaft seal, wherein this axle sleeve has an end cap portions in contrast to this closure assemblies, and one connects this end cap portions and wears the sleeve part of this closure assemblies.
Preferably, aforesaid compound cartridge type double-shaft seal, wherein the interior sealing mechanism of this interior sealing unit has one and to 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 swivel becket on this interior stationary ring and in the end cap portions of this axle sleeve of ring set, and a black box in this closure assemblies and this interior stationary ring, and the ring seat of this mechanism with flexible elements is swivel becket interior with this combines.
Preferably, aforesaid compound cartridge type double-shaft seal, wherein the mechanism with flexible elements of this interior sealing unit also has an auxiliary seal assembly be positioned between the end cap portions of this axle sleeve and this ring-type fitting seat, and a locating piece for the end cap portions in conjunction with this ring-type fitting seat and this axle sleeve, this auxiliary seal assembly is between this ring-type fitting seat and this end cap portions, this ring-type fitting seat be then be arranged at this axle sleeve end cap portions on and be formed with a radial location hole, this locating piece wears this radial location hole with the end cap portions in conjunction with this ring-type fitting seat and this axle sleeve.
Preferably, aforesaid compound cartridge type double-shaft seal, wherein the external sealed mechanism of this external sealed unit has one and to be arranged on this closure assemblies and the outer stationary ring of the sleeve part of this axle sleeve of ring set, and one to push against on this outer stationary ring and this transfer rings and the outer swivel becket of the sleeve part of this axle sleeve of ring set respectively, and the two ends of this elastic component are this closure assemblies of contact and this outer stationary ring respectively.
Preferably, aforesaid compound cartridge type double-shaft seal, wherein the interior sealing mechanism of this interior sealing unit has one and to 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 swivel becket on this interior stationary ring and in the end cap portions of this axle sleeve of ring set, and the ring seat of this mechanism with flexible elements is swivel becket interior with this combines, and the ring-type fitting seat of the mechanism with flexible elements of this interior sealing unit has first pedestal be mutually connected with this bellows, second pedestal spaced with this first pedestal, and one axially connect this first, the packing assembly of the second pedestal, this auxiliary seal assembly be between this first, between the end cap portions of the second pedestal and this axle sleeve and by this packing assembly institute packing.
Preferably, aforesaid compound cartridge type double-shaft seal, wherein the external sealed mechanism of this external sealed unit have one to be arranged on this closure assemblies and the outer stationary ring of the sleeve part of this axle sleeve of ring set, one push against in this outer stationary ring and the outer swivel becket of the sleeve part of this axle sleeve of ring set, and a compression ring be pressed against on this outer swivel becket, and the two ends of this elastic component are difference this transfer rings of contact and this compression ring.
Preferably, aforesaid compound cartridge type double-shaft seal, wherein the mechanism with flexible elements of this interior sealing unit also has a second spiral guide channel be formed on this ring-type fitting seat.
Preferably, aforesaid compound cartridge type double-shaft seal, wherein this capping unit also comprises one and runs through this closure assemblies and the flushing hole being communicated with this processing procedure side.
Preferably, aforesaid compound cartridge type double-shaft seal, wherein the interior sealing mechanism of this interior sealing unit have an interior swivel becket be combined with each other with the end cap portions of this axle sleeve, a pushing tow on this interior swivel becket in stationary ring, and a black box in this end cap portions and this interior swivel becket, the ring seat of the mechanism with flexible elements of this interior sealing unit pushes against on this interior stationary ring, and this ring-type fitting seat is arranged on this closure assemblies.
Preferably, aforesaid compound cartridge type double-shaft seal, wherein the mechanism with flexible elements of this interior sealing unit also has a black box be positioned between this closure assemblies and this ring-type fitting seat, and one for the locating piece in conjunction with this ring-type fitting seat and this closure assemblies, and this ring-type fitting seat being formed with a radial location hole, this locating piece wears this radial location hole with in conjunction with this ring-type fitting seat and this closure assemblies.
Preferably, aforesaid compound cartridge type double-shaft seal, the end cap portions outer circumferential face of wherein this axle sleeve is formed with a first spiral guide channel.
Preferably, aforesaid compound cartridge type double-shaft seal, the transfer rings outer circumferential face of wherein this external sealed unit is formed with at least one guide groove, and this guide groove is that whorl is located on this transfer rings outer circumferential face.
Preferably, aforesaid compound cartridge type double-shaft seal, wherein this transfer rings outer circumferential face is formed with several guide groove.
Preferably, aforesaid compound cartridge type double-shaft seal, wherein this shaft sleeve unit also comprises a driving mechanism be arranged on this axle sleeve, and this driving mechanism has the driving component on an one end of compeling to close in this sleeve part in contrast to this end cap portions.
Preferably, aforesaid compound cartridge type double-shaft seal, wherein the driving mechanism of this shaft sleeve unit also have one place by this driving component and be pressed against this sleeve part and cover in contrast to the driving on one end of this end cap portions.
Preferably, aforesaid compound cartridge type double-shaft seal, wherein the closure assemblies of this capping unit have interior capping on an outer wall being arranged at this machinery cavity, one to be incorporated in this interior capping and to be positioned at the outer seal of this atmospheric side, and a lid black box between this outer seal and this interior capping, this outer seal matches with interior capping and defines this containing space.
Preferably, aforesaid compound cartridge type double-shaft seal, wherein this compound cartridge type double-shaft seal also comprises a steam orifice be formed on this closure assemblies, and one is arranged at the axle bush placed on this closure assemblies and by this axle sleeve.
Preferably, aforesaid compound cartridge type double-shaft seal, wherein the external sealed mechanism of this external sealed unit has one and to be arranged on this closure assemblies and the outer stationary ring of the sleeve part of this axle sleeve of ring set, and one to push against on this outer stationary ring and this transfer rings and the outer swivel becket of the sleeve part of this axle sleeve of ring set respectively, and the two ends of this elastic component are this closure assemblies of contact and this outer stationary ring respectively.
Preferably, aforesaid compound cartridge type double-shaft seal, wherein the interior sealing mechanism of this interior sealing unit has one and to 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 swivel becket on this interior stationary ring and in the end cap portions of this axle sleeve of ring set, and the ring seat of this mechanism with flexible elements is swivel becket interior with this combines, and the ring-type fitting seat of the mechanism with flexible elements of this interior sealing unit has first pedestal be mutually connected with this bellows, second pedestal spaced with this first pedestal, and one axially connect this first, the packing assembly of the second pedestal, this auxiliary seal assembly be between this first, between the end cap portions of the second pedestal and this axle sleeve and by this packing assembly institute packing, and this radial location hole is then be formed on this second pedestal.
Useful effect of the present invention is: the amount of deformation utilizing this bellows, the vapour bearing the high-temperature vapour that axial pressure, radial pressure and torsion produce with the vibrations of absorption equipment itself and processing procedure liquid shakes, reduce the vibrations abrasion between component, lift structure stability, to maintain overall sealing and anti-leakage effect, and promote overall working life.
Accompanying drawing explanation
Fig. 1 is a sectional view, illustrates that TaiWan, China announces the aspect of No. 459938 " the clamping type gland seal device of rotary machine use " new patent case.
Fig. 2 is a sectional view, and the first preferred embodiment of the compound cartridge type double-shaft seal 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 the second preferred embodiment of the compound cartridge type double-shaft seal of the present invention is described.
Fig. 5 is a sectional view, and the 3rd preferred embodiment of the compound cartridge type double-shaft seal of the present invention is described.
Fig. 6 is a sectional view, and the 4th preferred embodiment of the compound cartridge type double-shaft seal of the present invention is described.
Fig. 7 is a sectional view, and the 5th preferred embodiment of the compound cartridge type double-shaft seal of the present invention is described.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.Before the present invention is described in detail, it should be noted that in the following description content, similar assembly represents with identical numbering.
Consult Fig. 2, first preferred embodiment of the compound cartridge type double-shaft seal 3 of the present invention comprises shaft sleeve unit 5, that a capping unit 4, wears this capping unit 4 and is located on external sealed unit 6 in this shaft sleeve unit 5, and one and this external sealed unit 6 spacer ring be placed on interior sealing unit 7 in this shaft sleeve unit 5.
This capping unit 4 comprises a closure assemblies 41, at least one inflow entrance 42 be formed on this closure assemblies 41, and at least one outflow opening 43 be formed at intervals with this inflow entrance 42 on this closure assemblies 41, this closure assemblies 41 has capping 412 in the outer seal 411 and that be combined with each other, one lid black box 413 between this outer seal 411 and this interior capping 412, and one to be matched with interior capping 412 containing space 414 defined by this outer seal 411, this inflow entrance 42 and outflow opening 43 to be formed at intervals on this outer seal 411 and to be communicated with this containing space 414.In this preferred embodiment, outer seal 411 and the interior capping 412 of this closure assemblies 41 be combined with each other, and certainly, in practical application, outer seal 411 and the interior capping 412 of this closure assemblies 41 also can be integrated, not by the open of the present embodiment is limit.
This shaft sleeve unit 5 comprises the axle sleeve 51 that wears this outer seal 411 and interior capping 412, and the driving mechanism 52 that is arranged at one end of this axle sleeve 51, this axle sleeve 51 has one in contrast to the end cap portions 511 of this driving mechanism 52, one connects this end cap portions 511 and wears the sleeve part 512 of this outer seal 411 and interior capping 412, and one is embedded at Simmer ring assembly 513 on this end cap portions 511 inner peripheral surface, this driving mechanism 52 has the driving component 521 on the one end of compeling to close in this sleeve part 512 in contrast to this end cap portions 511, one place by this driving component 521 and be pressed against this sleeve part 512 in contrast to the driving lid 522 on one end of this end cap portions 511.
This external sealed unit 6 comprises in a sleeve part 512 being arranged at this axle sleeve 51 and the transfer rings 61, being arranged in this containing space 414 to be arranged on outer seal 411 and to be sheathed on the external sealed mechanism 62 of this axle sleeve 51, and severally 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, the outer circumferential face of this transfer rings 61 is formed with a guide groove 611.In this preferred embodiment, this guide groove 611 whorl is located on the outer circumferential face of this transfer rings 61, and described elastic component 63 is Compress Springs.
This external sealed mechanism 62 has one and to be 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, one to push against on this outer stationary ring 621 with this transfer rings 61 and the outer swivel becket 622 of the sleeve part 512 of this axle sleeve 51 of ring set respectively, one exterior seal assembly 623 between this outer stationary ring 621 and this outer seal 411, one first is connected black box 624 between this outer swivel becket 622 with this transfer rings 61, and one second is connected black box 625 between the sleeve part 512 of this transfer rings 61 and this axle sleeve 51, and the two ends of described elastic component 63 this outer seal 411 of contact and this outer stationary ring 621 respectively.
Consult Fig. 2,3, this interior sealing unit 7 comprises one and to be sheathed on this axle sleeve 51 and the sealing mechanism 71 be positioned between this axle sleeve 51 and this capping 412, and one and this interior sealing mechanism 71 be sheathed on the mechanism with flexible elements 72 of this axle sleeve 51 in combination.
This interior sealing mechanism 71 has one and to be arranged in this interior capping 412 and the interior stationary ring 711, of the sleeve part 512 of this axle sleeve 51 of ring set pushes swivel becket 712 on this interior stationary ring 711 and in the end cap portions 511 of this axle sleeve 51 of ring set, and one in this interior capping 412 and this interior stationary ring 711 black box 713.
This mechanism with flexible elements 72 has the second spiral guide channel 720 that ring-type fitting seat 723, the auxiliary seal assembly 724, be positioned between the end cap portions 511 of this axle sleeve 51 and this ring-type fitting seat 723 that the ring seat 721, pushed against on this interior sealing mechanism 71 bellows 722, be connected in this ring seat 721 is connected to this bellows 722 opposite side is formed at these ring-type fitting seat 723 outer periphery, and one in conjunction with the locating piece 725 of this ring-type fitting seat 723 with the end cap portions 511 of this axle sleeve 51.Wherein, the ring seat 721 of this mechanism with flexible elements 72 combines with this interior swivel becket 712, the end cap portions 511 that this ring-type fitting seat 723 is then arranged at this axle sleeve 51 is formed with a radial location hole 726, the two ends of this bellows 722 are connected with respectively in this ring seat 721 with this ring-type fitting seat 723, this auxiliary seal assembly 724 is between this ring-type fitting seat 723 and this end cap portions 511, and this locating piece 725 wears this radial location hole 726 with the end cap portions 511 in conjunction with 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 with made by metallic material, certainly, this bellows 722 also can be utilize nonmetallic material such as Teflon to make, still can reach identical effect, not be limited with the present embodiment.
Consult Fig. 2, this compound cartridge type double-shaft seal 3 is installed on a machinery cavity 300, and this machinery cavity 300 comprises the outer wall 301 that separates out a processing procedure side A and an atmospheric side B, and the rotating shaft 302 that is arranged in this outer wall 301 rotationally.
The closure assemblies 41 of this compound cartridge type double-shaft seal 3 is positioned at this atmospheric side B, and is arranged on this outer wall 301 with this interior capping 412; And this axle sleeve 51 wear by the rotating shaft 302 of this machinery cavity 300; This external sealed unit 6 lays respectively in this atmospheric side B and this processing procedure side A with this interior sealing unit 7, and the end cap portions 511 of this axle sleeve 51 is positioned at this processing procedure side A, and this driving mechanism 52 is then positioned at this atmospheric side B so that this axle sleeve 51 is incorporated into this rotating shaft 302.
To illustrate at this, if the thickness of the sleeve part 512 of this axle sleeve 51 is enough to for this driving component 521 places location and is incorporated in this rotating shaft 302 by this axle sleeve 51, also can omit this driving lid 522, still can reach identical effect.
When starting this rotating shaft 302 and rotating, utilize in conjunction with the driving mechanism 52 of this axle sleeve 51 with this rotating shaft 302, make this axle sleeve 51 can by this rotating shaft 302 driven rotary, simultaneous linkage be connected with outer swivel becket 622, transfer rings 61, interior swivel becket 712 and this mechanism with flexible elements 72 synchronous rotary on this axle sleeve 51; Coordinate this lid black box 413, exterior seal assembly 623, first to connect black box 624, second and connect the effect that black box 625, interior black box 713, auxiliary seal assembly 724 and the shaft seal assembly between this rotating shaft 302 and this axle sleeve 51 513 can form sealing and anti-leakage.
And the crystal of processing procedure side A or impurity particle also expel by the second spiral guide channel 720 of this mechanism with flexible elements 72 in the lump, there is the situation of blocking to prevent each component, and then reach 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 absorb in the A of processing procedure side along the axial pressure that the axis of this rotating shaft 302 produces by compressive strain, more by the bending deflection of this ring seat 721 relative with ring-type fitting seat 723, absorb an issuable moment and radial pressure when rotating shaft 302 rotates and absorb issuable vibrations even completely to lower, increase stability when rotating, reduce the vibrations abrasion between component, to maintain overall sealing and anti-leakage effect, and promote overall working life.
To illustrate at this, good with bellows 722 vibration strength made by metallic material, be highly resistant to processing procedure side A high temperature process produce steam and cause vapour shake phenomenon.
In addition, isolated liquid (not shown) is inputted in this containing space 414 by this inflow entrance 42, coordinate the effect of stirring continuously produced with the guide groove 611 on transfer rings 61 outer circumferential face of this axle sleeve 51 synchronous rotary, isolated liquid is forced to accelerate flowing, and the isolated liquid of lasting guiding is discharged from this outflow opening 43 after this inflow entrance 42 flows into, and can not need under the extra state increasing isolated hydraulic coupling, 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 cartridge type double-shaft seal 3 of the present invention, roughly identical with this first preferred embodiment, not identical place is: the ring-type fitting seat 723 of this mechanism with flexible elements 72 has first pedestal 727 be mutually connected with this bellows 722, one with this first pedestal 727 the second pedestal 728 separately, and one axially connect this first, second pedestal 727, the packing assembly 729 of 728, this auxiliary seal assembly 724 between this first, second pedestal 727, 728 and this axle sleeve 51 end cap portions 511 between, and by 729 packings of this packing assembly, this radial location hole 726 is then formed on the second pedestal 728.Thus provide a kind of aspect being different from this first preferred embodiment to select for user.
Consult Fig. 5,3rd preferred embodiment of the compound cartridge type double-shaft seal 3 of the present invention, roughly identical with this first preferred embodiment, comprise shaft sleeve unit 5, that a capping unit 4, wears this capping unit 4 and be located on external sealed unit 6 in this shaft sleeve unit 5, and one and this external sealed unit 6 spacer ring be placed on interior sealing unit 7 in this shaft sleeve unit 5.Not identical place is: the external sealed mechanism 62 of external sealed unit 6 also has one and is pressed against compression ring 626 on this outer swivel becket 622, and the two ends of described elastic component 63 this transfer rings 61 of contact and this compression ring 626 (because only showing a wherein elastic component 63 in visual angle graph of a relation 6) respectively, and this capping unit 4 also has the flushing hole 44 that runs through this outer seal 411 and this interior capping 412, and this flushing hole 44 is communicated with this atmospheric side B and this processing procedure side A.Liquid is passed into, so that the described component of this interior sealing unit 7 of punching profit by this flushing hole 44.
Consult Fig. 6,4th preferred embodiment of the compound cartridge type double-shaft seal 3 of the present invention, roughly identical with the 3rd preferred embodiment, not identical place is: this capping unit 4 also comprises one and is formed at steam orifice 45 on this outer seal 411, on the outer seal 411 being arranged at this closure assemblies 41 with one and the axle bush 8 placed by this axle sleeve 51, and this inflow entrance 42 and outflow opening 43 are formed at this interior capping 412 respectively with on this outer seal 411.Under the environment of low temperature, steam can be inputted by this steam orifice 45, heat insulation effect be produced for the isolated liquid in this inflow entrance 42, outflow opening 43, also can clean the grain crystalline thing that external sealed unit 6 place produces.
Consult Fig. 7, 5th preferred embodiment of the compound cartridge type double-shaft seal 3 of the present invention, roughly identical with this first preferred embodiment, comprise a capping unit 4, one shaft sleeve unit 5 wearing this capping unit 4, one is located on the external sealed unit 6 in this shaft sleeve unit 5, and one and this external sealed unit 6 spacer ring be placed on interior sealing unit 7 in this shaft sleeve unit 5, not identical place is: the interior stationary ring 711 of the interior sealing mechanism 71 of this interior sealing unit 7 be combined with each other with the end cap portions 511 of this axle sleeve 51, this interior swivel becket 712 pushing tow is on this interior stationary ring 711, and this interior black box 713 is between this end cap portions 511 and this interior stationary ring 711.And this transfer rings 61 outer circumferential face is formed with several guide groove 611.In this preferred embodiment, described guide groove 611 is axially formed on the outer circumferential face of this transfer rings 61, and certainly, described guide groove 611 also can interval and be formed obliquely on the outer circumferential face of this transfer rings 61.
The ring seat 721 of the mechanism with flexible elements 72 of this interior sealing unit 7 pushes against on this interior swivel becket 712, this ring-type fitting seat 723 is arranged in this interior capping 412, this auxiliary seal assembly 724 is then positioned between this capping 412 and this ring-type fitting seat 723, and this locating piece 725 wears this radial location hole 726 with in conjunction with this ring-type fitting seat 723 and this interior capping 412.And end cap portions 511 outer circumferential face of this axle sleeve 51 is formed with one first spiral guide channel 514.
While this axle sleeve 51 rotates, this first spiral guide channel 514 can be utilized the crystal of processing procedure side A or impurity particle to be expelled in the lump, the situation of blocking occur to prevent each component, and then reaches better sealing leakage-proof effect.
In sum, the compound cartridge type double-shaft seal 3 of the present invention utilizes the compressive strain of this bellows 722, absorbs the rotating shaft 302 issuable moment of institute and radial pressure and axial pressure when rotating; The problem solving high temperature or cause vapour to shake because producing steam in processing procedure of easily vaporizing, even issuable vibrations are absorbed to lower, increase stability when rotating, reduce the vibrations abrasion between component, to maintain overall sealing and anti-leakage effect, and promote overall working life, so really object of the present invention can be reached.
Claims (19)
1. a compound cartridge type double-shaft seal, for being arranged on a machinery cavity, this machinery cavity comprises the outer wall that separates out a processing procedure side and an atmospheric side, this compound cartridge type double-shaft seal comprises a capping unit, a shaft sleeve unit wearing this capping unit, one is located on the external sealed unit in this shaft sleeve unit, and an interior sealing unit be located on this external sealed unit interval in this shaft sleeve unit, this capping unit comprises one and to be arranged on this outer wall and the closure assemblies being formed with a containing space, at least one to be formed on this closure assemblies and to be communicated with the inflow entrance of this containing space, and at least one to be formed at intervals with this inflow entrance on this closure assemblies and to be communicated with the outflow opening of this containing space, this shaft sleeve unit comprises the axle sleeve that wears this closure assemblies, this external sealed unit comprises one and to be arranged on this axle sleeve and the transfer rings being arranged in this containing space, one to be arranged on closure assemblies and the external sealed mechanism of this axle sleeve sheathed, and at least one pushes against the elastic component in this external sealed mechanism, this interior sealing unit comprise one with the interior sealing mechanism of this transfer rings compartment of terrain this axle sleeve sheathed, it is characterized in that: this interior sealing unit also comprise one with the mechanism with flexible elements of this interior sealing mechanism this axle sleeve sheathed in combination, this mechanism with flexible elements has one and pushes against the bellows being connected to this ring seat in the ring seat of this interior sealing mechanism and, the elastic component of this external sealed unit is Compress Spring, and this capping unit also comprises one and runs through this closure assemblies and the flushing hole being communicated with this processing procedure side.
2. a compound cartridge type double-shaft seal, for being arranged on a machinery cavity, this machinery cavity comprises the outer wall that separates out a processing procedure side and an atmospheric side, this compound cartridge type double-shaft seal comprises a capping unit, a shaft sleeve unit wearing this capping unit, one is located on the external sealed unit in this shaft sleeve unit, and an interior sealing unit be located on this external sealed unit interval in this shaft sleeve unit, this capping unit comprises one and to be arranged on this outer wall and the closure assemblies being formed with a containing space, at least one to be formed on this closure assemblies and to be communicated with the inflow entrance of this containing space, and at least one to be formed at intervals with this inflow entrance on this closure assemblies and to be communicated with the outflow opening of this containing space, this shaft sleeve unit comprises the axle sleeve that wears this closure assemblies, this external sealed unit comprises one and to be arranged on this axle sleeve and the transfer rings being arranged in this containing space, one to be arranged on closure assemblies and the external sealed mechanism of this axle sleeve sheathed, and at least one pushes against the elastic component in this external sealed mechanism, this interior sealing unit comprise one with the interior sealing mechanism of this transfer rings compartment of terrain this axle sleeve sheathed, it is characterized in that: this interior sealing unit also comprise one with the mechanism with flexible elements of this interior sealing mechanism this axle sleeve sheathed in combination, this mechanism with flexible elements has one and pushes against the bellows being connected to this ring seat in the ring seat of this interior sealing mechanism and, the elastic component of this external sealed unit is Compress Spring, this compound cartridge type double-shaft seal also comprises a steam orifice be formed on this closure assemblies, and one is arranged at the axle bush placed on this closure assemblies and by this axle sleeve.
3. compound cartridge type double-shaft seal according to claim 1 and 2, it is characterized in that: this axle sleeve has an end cap portions in contrast to this closure assemblies, and one connects this end cap portions and wears the sleeve part of this closure assemblies, the mechanism with flexible elements of this interior sealing unit also has the ring-type fitting seat that is connected to this bellows opposite side.
4. compound cartridge type double-shaft seal according to claim 3, it is characterized in that: the interior sealing mechanism of this interior sealing unit has one and to 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 swivel becket on this interior stationary ring and in the end cap portions of this axle sleeve of ring set, and a black box in this closure assemblies and this interior stationary ring, and the ring seat of this mechanism with flexible elements combines with this interior swivel becket.
5. compound cartridge type double-shaft seal according to claim 4, it is characterized in that: the mechanism with flexible elements of this interior sealing unit also has an auxiliary seal assembly be positioned between the end cap portions of this axle sleeve and this ring-type fitting seat, and a locating piece, the end cap portions that this ring-type fitting seat is then arranged at this axle sleeve is formed with a radial location hole, and this locating piece is arranged in this radial location hole with the end cap portions in conjunction with this ring-type fitting seat and this axle sleeve.
6. compound cartridge type double-shaft seal according to claim 3, it is characterized in that: the external sealed mechanism of this external sealed unit has one and to be arranged on this closure assemblies and the outer stationary ring of the sleeve part of this axle sleeve of ring set, and one to push against on this outer stationary ring and this transfer rings and the outer swivel becket of the sleeve part of this axle sleeve of ring set respectively, and the two ends of this elastic component this closure assemblies of contact and this outer stationary ring respectively.
7. compound cartridge type double-shaft seal according to claim 5, it is characterized in that: the interior sealing mechanism of this interior sealing unit has one and to 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 swivel becket on this interior stationary ring and in 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 the ring-type fitting seat of the mechanism with flexible elements of this interior sealing unit has first pedestal be mutually connected with this bellows, second pedestal spaced with this first pedestal, and one axially connects this first pedestal, the packing assembly of the second pedestal, this auxiliary seal assembly is between this first pedestal, between the end cap portions of the second pedestal and this axle sleeve and by this packing assembly institute packing.
8. compound cartridge type double-shaft seal according to claim 3, it is characterized in that: the external sealed mechanism of this external sealed unit have one to be arranged on this closure assemblies and the outer stationary ring of the sleeve part of this axle sleeve of ring set, one push against in this outer stationary ring and the outer swivel becket of the sleeve part of this axle sleeve of ring set, and a compression ring be pressed against on this outer swivel becket, and the two ends of this elastic component this transfer rings of contact and this compression ring respectively.
9. compound cartridge type double-shaft seal according to claim 3, is characterized in that: the mechanism with flexible elements of this interior sealing unit also has a second spiral guide channel be formed on this ring-type fitting seat.
10. compound cartridge type double-shaft seal according to claim 3, it is characterized in that: the interior sealing mechanism of this interior sealing unit have an interior stationary ring be combined with each other with the end cap portions of this axle sleeve, a pushing tow on this interior stationary ring in swivel becket, and a black box in this end cap portions and this interior swivel becket, the ring seat of the mechanism with flexible elements of this interior sealing unit pushes against on this interior swivel becket, and this ring-type fitting seat is arranged on this closure assemblies.
11. compound cartridge type double-shaft seals according to claim 10, it is characterized in that: the mechanism with flexible elements of this interior sealing unit also has an auxiliary seal assembly be positioned between this closure assemblies and this ring-type fitting seat, and a locating piece, and this ring-type fitting seat being formed with a radial location hole, this locating piece wears this radial location hole with in conjunction with this ring-type fitting seat and this closure assemblies.
12. compound cartridge type double-shaft seals according to claim 10, is characterized in that: the end cap portions outer circumferential face of this axle sleeve is formed with a first spiral guide channel.
13. compound cartridge type double-shaft seals according to claim 1 and 2, is characterized in that: the transfer rings outer circumferential face of this external sealed unit is formed with at least one guide groove, and this guide groove whorl is located on this transfer rings outer circumferential face.
14. compound cartridge type double-shaft seals according to claim 1 and 2, is characterized in that: this transfer rings outer circumferential face is formed with several guide groove.
15. compound cartridge type double-shaft seals according to claim 3, it is characterized in that: this shaft sleeve unit also comprises a driving mechanism be arranged on this axle sleeve, this driving mechanism has the driving component on an one end of compeling to close in this sleeve part in contrast to this end cap portions.
16. compound cartridge type double-shaft seals according to claim 15, is characterized in that: the driving mechanism of this shaft sleeve unit also have one place by this driving component and be pressed against this sleeve part and cover in contrast to the driving on one end of this end cap portions.
17. compound cartridge type double-shaft seals according to claim 1 and 2, it is characterized in that: the closure assemblies of this capping unit have interior capping on an outer wall being arranged at this machinery cavity, one to be incorporated in this interior capping and to be positioned at the outer seal of this atmospheric side, and a lid black box between this outer seal and this interior capping, this outer seal matches with interior capping and defines this containing space.
18. compound cartridge type double-shaft seals according to claim 5, it is characterized in that: the external sealed mechanism of this external sealed unit has one and to be arranged on this closure assemblies and the outer stationary ring of the sleeve part of this axle sleeve of ring set, and one to push against on this outer stationary ring and this transfer rings and the outer swivel becket of the sleeve part of this axle sleeve of ring set respectively, and the two ends of this elastic component this closure assemblies of contact and this outer stationary ring respectively.
19. compound cartridge type double-shaft seals according to claim 18, it is characterized in that: the interior sealing mechanism of this interior sealing unit has one and to 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 swivel becket on this interior stationary ring and in 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 the ring-type fitting seat of the mechanism with flexible elements of this interior sealing unit has first pedestal be mutually connected with this bellows, second pedestal spaced with this first pedestal, and one axially connects this first pedestal, the packing assembly of the second pedestal, this auxiliary seal assembly is between this first pedestal, between the end cap portions of the second pedestal and this axle sleeve and by this packing assembly institute packing, this radial location hole is then 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 CN102606737A (en) | 2012-07-25 |
| CN102606737B true CN102606737B (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110025138.3A Active CN102606737B (en) | 2011-01-24 | 2011-01-24 | Compound cartridge type double-shaft seal |
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| Country | Link |
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| CN (1) | CN102606737B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108060635B (en) * | 2017-11-28 | 2019-07-02 | 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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| TW201100676A (en) * | 2009-06-18 | 2011-01-01 | Scenic Precise Element Inc | Cartridge type dual shaft seal |
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| US5954341A (en) * | 1996-07-30 | 1999-09-21 | John Crane Sealol Inc. | Bellows seal with drive collar for reverse pressure capability |
| JPH1113894A (en) * | 1997-06-19 | 1999-01-22 | Nippon Pillar Packing Co Ltd | Mechanical seal |
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|---|---|
| CN102606737A (en) | 2012-07-25 |
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