CN101251192A - Split bearing isolator and a method for assembling seal - Google Patents
Split bearing isolator and a method for assembling seal Download PDFInfo
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- CN101251192A CN101251192A CNA2007101280014A CN200710128001A CN101251192A CN 101251192 A CN101251192 A CN 101251192A CN A2007101280014 A CNA2007101280014 A CN A2007101280014A CN 200710128001 A CN200710128001 A CN 200710128001A CN 101251192 A CN101251192 A CN 101251192A
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Abstract
An assembly for sealing a rotating shaft and a bearing housing which has a stator, a rotor, and a unitizing element. The stator has at least two portions and an annular engagement flange extending in an axial direction having a groove on a radial side thereof. The rotor has at least two portions and an annular engagement flange extending in an axial direction having a groove on the radial side thereof. The annular unitizing element has at least two portions, a stator engaging member that engages the stator groove, a rotor engaging member that engages the rotor groove, and a rear member having a side edge that engages the stator. A radially outer surface of the unitizing element has two areas of differing diameter, one corresponding to the rotor engaging member and the other corresponding to the rear member.
Description
The application is the part continuation application, and require the common unsettled U.S. Patent application 11/709 submitted on February 23rd, 2007, (it is the U.S. Patent application of submitting on December 9th, 2,005 11/297 to 818 preference, 489 continuation application and preference, present patent 7,201,377, it is the U.S. Patent application of submitting on September 29th, 2,003 10/674,264 divide an application, it requires name to be called " labyrinth sealing ", the preference of the U.S. Provisional Application of submitting on September 30th, 2002 just on the docket number 60/414,862), its full content merges reference herein.
Technical field
The present invention relates to a kind of labyrinth-type excluder that dynamic seal (packing) between rotating shaft and the bearing housing is provided, with and assembly method.Especially, the present invention relates to a kind of dynamic seal (packing), it comprises parts, rotor and stator in groups, and each described parts in groups, rotor and stator all can be at least two parts.
Background technique
Mazy type rotating shaft sealing spare is that this field is known.Typically, these devices comprise two concentric ring structures that comprise rotor and stator.This rotor cooperates with rotating shaft sealing ground, and this stator cooperates with Seal in Bearing Box ground.Use the Sealing of number of different types, so that the space between sealing rotor rotated and the fixing stator.It comprises O shape ring, lip rubber seal spare and labyrinth.Labyrinth is effective seal part type.The passage of specially-shaped or groove shaped are formed on the internal surface of seal ring, the labyrinth of extending between the inside with the outside that is based upon bearing housing and bearing housing.This labyrinth channel is as the fluid obstacle thing, so that fluid lubricant remains in the bearing housing, and prevents that pollutant from entering bearing housing.Passage is complicated more, and pollutant passes this structure, and to enter the possibility of bearing housing just more little.
A kind of method that makes passage become more complicated is to increase the surface area that pollutant must pass through, and promptly increases the length of passage.In order to obtain effective labyrinth, created the sealing configuration of many complexity, be included in ridge and depressed part that interlocking on the both sides of rotor and stator forms Sealing.By increasing the quantity of ridge and depressed part, increased the gross area/length of passage, reach the purpose of above-mentioned block contaminant thus.If given space is relative with tolerance less, then quantity of these finger pieces (finger) and size will be restricted.
Rotating shaft sealing spare on the other hand in, need to get rid of as early as possible the pollutant that has moved in this system.The obstruction of particular matter can damage Sealing and/or cause rotor and the wearing and tearing of stator.In addition, need fetch any oiling agent liquid that is discharged from this system and make it turn back to the inside of rotor.The loss of oiling agent liquid will cause the damage of part and increase the frictional heat of system.
In the structure of typical rotor and stator, need to keep certain minimum clearance, contact with each other so that prevent rotor and stator.In some applications, aircraft landing gear for example, rotor is to surpass the speed rotation of about 5000rpm.If under this speed, the surface of rotor contacts with the surface of stator, then will produce frictional heat, and element can damage, and can reduce the whole efficiency and the operating life of equipment.Therefore, keep rotor and stator separately very important.
Between rotor and stator, often adopt rubber or plastic seal device, so that by between two elements, providing low rubbing contact that it is radially separated.Same seal arrangement is forced under the situation of stator at rotor, if can prevent that axially contact is benefited.
If rotor moves away stator, then opposite problem may appear.Along with rotor leaves stator vertically, gap between the element is strengthened, and enters the possibility that bearing housing and oiling agent leak into the outside thereby increased pollutant.These all are unfavorable schemes, it is desirable to a kind of make that stator and rotor combine effectively, make their Sealings of " (unitize) in groups ".
Existing labyrinth can not provide a kind of lasting and wear-resistant effective seal part, and the sealing part can make stator and rotor in groups, and can prevent the contact between the stator and rotor in the axial motion process.
Dismounting Sealing spare can cause increase the downtime of equipment.Can cause expensive cost the downtime of described increase.Therefore, it is desirable to Sealing replaceable easy to manufacturely, that replace in mode more timely.
The present invention develops at the above-mentioned demand of recognizing just.
Summary of the invention
The object of the present invention is to provide a kind of labyrinth sealed parts and assembly in groups of being used for, it provides dynamic seal (packing) between rotating shaft and bearing housing.This in groups parts prevent that pollutant from entering bearing housing, also prevent the loss of bearing lubricant simultaneously.This in groups, non-contacting structure can also prevent in axial motion the wearing and tearing of rotor and stator.
In a first aspect of the present invention, a kind of parts in groups of annular are provided, comprising: rotor mating component, stator mating component and back member.This in groups the radially-outer surface of parts comprise the zone of two different-diameters, one of them zone is corresponding to this rotor mating component, and another zone is corresponding to this back member, and this stator mating component radially extends internally from the radially inner side of the parts in groups of this annular.
In another aspect of this invention, provide a kind of black box that is used for sealing pivot and bearing housing, having comprised: rotor, this rotor comprises: the annular mating flange of Yan Shening vertically, its radial side comprises groove; Stator, this stator comprises: the annular mating flange of Yan Shening vertically, its radial side comprises groove; And the parts in groups of annular, this in groups parts comprise: stator mating component, rotor mating component and back member.The groove fit of this rotor mating component and this rotor, and this stator mating component from this in groups parts radially extend so that with the groove fit of this stator.
In another aspect of the present invention, provide a kind of assembling to be used for the method for the black box of sealing pivot and bearing housing, having comprised: rotor is provided, and this rotor comprises: the annular mating flange of Yan Shening vertically, and its radial side comprises groove; Parts in groups are provided, this in groups parts comprise: stator mating component, rotor mating component, be included in the zone between this stator mating component and this rotor mating component the space and the back member; Make this in groups parts cooperate with this rotor, thereby this in groups this rotor mating component of parts remain in the groove of annular mating flange of this rotor; Stator further is provided, and this stator comprises: the annular mating flange of Yan Shening vertically, and its radial side comprises groove; And make at last this rotor and this in groups parts cooperate with this stator, thereby this stator mating component inclination enters this space, up to this in groups parts be in the appropriate location, then, this stator mating component extends into the zone of this stator groove.
Feature of the present invention is a kind of new design of parts in groups of special shape.This in groups parts be annular, and the cross section is rectangle basically, in the scope with the groove that is assemblied in this rotor and stator.This in groups parts further comprise: the stator mating component, cooperate groove on this stator with locking, and the back member, this back member extension is to contact the rear wall of this stator, to prevent axial motion.If axial motion makes rotor move towards stator, before rotor and stator wear and tear, this in groups parts produce contact.Back member on the ring accurately is designed at the rear wall of this rotor with this stator of contact before this stator contacts.This feature can prevent any wearing and tearing of primary component, and the protection mazy passage.
This stator, rotor and this parts in groups can comprise two or more parts respectively.This feature can be simplified this assembly, and the assembling of Sealing, and it can reduce installation time, can reduce expenses thus, carries out effectively and simple maintenance.
Traditional seal arrangement uses open type (split) labyrinth seal and does not use parts in groups.In addition, these seal arrangements do not have the ring element in groups of the rotor of being connected to.
In one embodiment, a kind of assembly that is used for stuffing box bearing case and rotating shaft is provided, wherein this rotating shaft has a spin axis, this assembly comprises: stator, this stator comprises: first stator department and second stator department, and this first stator department and second stator department are along a stator planar registration that extends through stator diameter and this spin axis; With the stator ring mating flange, this stator ring mating flange extends vertically, and comprises stator groove in its radial side; Rotor, this rotor comprises: the first rotor portion and second rotor part, this first rotor portion and second rotor part are alignd along a rotor plane that extends through root diameter and this spin axis; With the rotor annular mating flange, this rotor annular mating flange extends vertically, and comprises rotor recesses in its radial side; Annular is parts in groups, and this annular parts in groups comprises: the first parts portion in groups of parts portion and second in groups, this first in groups parts portion and second in groups parts portion extend through this annular parts planar registration in groups of parts and this spin axis in groups along one; The stator mating component, it cooperates with this stator groove; The rotor mating component, it cooperates with this rotor recesses; Back member, it comprises top margin, base and side, wherein this side from this in groups parts extend to cooperate with this stator; The neighboring region of two different-diameters, one of them zone are corresponding to this rotor mating component, and another zone is corresponding to this back member.
In another embodiment, provide a kind of assembly that is used for seal case and axle, this axle is rotatable and extend through this casing with respect to this casing, and this assembly comprises: stator, and this stator comprises: at least two stator departments; With the stator ring mating flange, this stator ring mating flange extends vertically, and comprises stator groove in its radial side; Rotor, this rotor comprises: at least two rotor part; With the rotor annular mating flange, this rotor annular mating flange extends vertically, and comprises rotor recesses in its radial side; And annular parts in groups, this annular parts in groups comprises: at least two parts portions in groups; The stator mating component, it cooperates with this stator groove; The rotor mating component, it cooperates with this rotor recesses; With the back member, it comprises top margin, base and side, wherein this side from this in groups parts extend to cooperate with this stator; And the neighboring region of two different-diameters, one of them zone is corresponding to this rotor mating component, and another zone is corresponding to this back member.
In another embodiment, a kind of method that forms the Sealing of bearing housing and rotating shaft is provided, wherein this rotating shaft comprises spin axis, and this method comprises the steps: the stator planar registration first semi-circular stator department and the second semi-circular stator department that extend through stator diameter and this spin axis along one; Rotor recesses on the first rotor mating flange radial side of the first semi-circular rotor part makes the first rotor mating component of the first semi-circular parts in groups portion be coupled to this first semi-circular rotor part; Rotor recesses on the second rotor mating flange radial side of the second semi-circular rotor part makes the second rotor mating component of the second semi-circular parts in groups portion be coupled to this second semi-circular rotor part; Stator groove on the first stator mating flange radial side of this first semi-circular stator department makes the first stator mating component of the first semi-circular parts in groups portion be coupled to this first semi-circular stator department; Stator groove on the second stator mating flange radial side of this second semi-circular stator department makes the second stator mating component of the second semi-circular parts in groups portion be coupled to this second semi-circular stator department; Alignd with this stator groove in the first side of the first back member of this first semi-circular parts in groups portion; And the second side of the second back member of this second semi-circular parts in groups portion alignd with this stator groove.
Those skilled in the art will appreciate that according to the present invention the multiple mazy type different embodiments of parts and assembly method in groups can be arranged.To describe other application of the present invention, purpose, advantage and new feature below in detail, and based on to following analysis of the present invention or enforcement, above-mentioned application, purpose, advantage and feature will become clearly for those skilled in the art.
Description of drawings
Fig. 1 is the isometric exploded view of the black box in the embodiments of the invention.
Fig. 2 is the sectional view of embodiments of the invention, and it comprises the section of black box, and comprises the zoomed-in view of parts and peripheral region in groups.
Fig. 3 is the sectional view that does not have the structure of the stator of parts in groups and rotor in the embodiments of the invention.
Fig. 4 is the sectional view of the parts in groups of embodiments of the invention.
Fig. 5 is the sectional view of embodiments of the invention, and it comprises the section of black box, and comprises stator, rotor and parts in groups.
Fig. 6 is the sectional view of black box of embodiments of the invention that has the zoomed-in view of stator O shape ring.
Fig. 7 is the isometric view of the black box among the embodiment of black box of the present invention, and it has shown oiling agent exhaust port and contaminant exclusion mouth.
Fig. 8 is the shaft side figure according to the black box of the separation of the embodiment of the invention.
Fig. 9 is the plan view according to the rotor part of the embodiment of the invention.
Figure 10 is the plan view according to the stator component of the embodiment of the invention.
Figure 11 is the plan view according to the parts in groups of the embodiment of the invention.
Figure 12 is the plan view according to the rotor O shape parts of the embodiment of the invention.
Figure 13 is the plan view according to the stator O shape parts of the embodiment of the invention.
Figure 14 is the cross-sectional view of O shape parts embodiment's black box.
Embodiment
The present invention includes new parts in groups, be used for rotating shaft and comprise between the bearing housing of stator.This in groups parts are rings of an annular, this annular becomes and the matching of the groove that forms in rotor and stator.This in groups parts make rotor and stator in groups, prevent to separate and constrained motion.This in groups parts also comprise the back member, when axial motion, non-metal component is provided for it in case the contacting of spline son and stator.
In another aspect of this invention, provide labyrinth seal assembly.This labyrinth seal assembly comprises stator that cooperates with bearing housing and the rotor that cooperates with rotating shaft.Between this two elements, define mazy passage, to prevent oiling agent and/or pollutant moving along either direction.This stator comprises and has groove, axially extended flange.This groove and epitrochanterian similar groove are complementary.The parts in groups that in the cavity that produces, include annular.
In another embodiment of the present invention, provide a kind of method of fitting tight assembly.Between rotating shaft and bearing housing, adopt parts in groups, leak out from case and prevent that to prevent oiling agent pollutant from entering in the case.In addition, this in groups parts make black box in groups, and prevent that rotor from contacting with stator.
To further describe the present invention by embodiment below, should understand the explanation should regarded as that is disclosed principle of the present invention.Exemplary embodiment of the present invention is shown in the accompanying drawing; In these accompanying drawings, adopt similar label to represent different embodiments' similar portions.
With reference to figure 1, shown parts in groups of the present invention among the figure in black box, the sealing assembly generally includes: be sealed and matched in the stator 10 of bearing housing by O shape ring 64; Be sealed and matched in the rotor 50 of axle by O shape ring 60; And the parts in groups 30 between this rotor 50 and stator 10.Along with rotor rotation, this in groups parts 30 prevent that by low friction buffer is provided rotor from contact with stator between two elements, and the further oiling agent of maintenance inside, and prevent that pollutant from entering bearing housing.
Can watch parts in groups in more detail in Fig. 2 and Fig. 4, it has shown the cutting view of assembly and the sectional view of parts in groups respectively.From sectional view, this in groups parts comprise rotor mating component 36, back member 34 and stator mating component 32.
In one embodiment of the invention, this in groups the radially-outer surface of parts comprise the zone of two different-diameters.This different-diameter comprises: the diameter in member 34 zones, back; And at one of rotor mating component 36 zones different diameter.Form a wall 38 by the diameter difference between back member 34 and the rotor mating component 36.This wall 38 be used for assembling will be in groups parts remain in the rotor 50, and after assembling, make rotor 50 and stator 10 in groups.In a preferred embodiment of the invention, wall 38 is positioned near the axial midpoint of parts in groups.Yet the position that those skilled in the art can understand wall 38 can change according to the structure of functions of components needs and rotor and stator module in groups.In a preferred embodiment of the invention, wall 38 is substantially perpendicular to spin axis.
Although comprise that the given shape of parts in groups 30 of wall 38, back member 34, rotor mating component 36 and stator mating component 32 is very important for its operation, but, these elements and in groups the definite size of parts itself can change according to the use needs of parts in groups.The remodeling of size is significantly for a person skilled in the art, and should fall within the scope of the present invention.Therefore, parts in groups of the present invention not only are confined to the sealing applications of any specific dimensions, and are suitable for the use of relative broad range equally.
Parts in groups 30 of the present invention comprise the material that is applicable to its special purpose, and it depends on specified temp, pressure, friction factor and other operation characteristics.The common material that is used for parts in groups of the present invention comprises polymer or the resin of fluoridizing.In one embodiment of the invention, parts 30 comprise smooth plastic materials in groups.In a preferred embodiment of the invention, this in groups parts comprise polytetrafluoroethylene (PTFE).
In most preferred embodiment of the present invention, this in groups parts 30 comprise the PTFE of filling.The PTFE of this filling comprises having the PTFE that is scattered in packing wherein.Packing is including, but not limited to the structure packing, as glass; And oiling agent, it comprises graphite, molybdenum disulfide and other solid lubricants.
In another aspect of this invention, provide a black box, it comprises parts in groups 30 of the present invention.Be preferably in the example of checking among Fig. 1 and Fig. 2 as black box of the present invention.The sealing assembly comprises rotor 50, stator 10 and parts 30 in groups.This rotor 50 is matched with the axle at the center of running through black box hermetically.This rotor 50 comprises axially extended annular flange flange 52, and this flange 52 comprises the rotor recesses 54 of the radially inner side that is positioned at flange 52.This stator 10 is sealed and matched in bearing housing 68 and comprises axially extended annular flange flange 12, and this flange 12 comprises the groove 14 of the radial outside that is positioned at this flange 12.Parts 30 comprise rotor mating component 36, stator mating component 32 and back member 34 in groups, this in groups parts 30 in the zone that forms by the space between rotor annular flange 52 and the stator ring flange 12.More properly, this in groups parts 30 be positioned partially in each rotor recesses 54 and the stator groove 14, and back member 34 extends towards stator rear wall 20.
Fig. 3 has shown the partial detailed figure of Fig. 2, does not place parts in groups therein.In one embodiment of the invention, black box comprises rotor 50, and it cooperates with shaft sealing ground by O shape ring 60.This rotor comprises annular flange flange 52, and it comprises the groove 54 that is positioned at its radially inner side.This groove 54 comprises two relative wall 58a and 58b.Similarly, this stator 10 comprises and contains fluted 14 annular flange flange 12.This stator groove 14 also comprises two relative wall 18a and 18b.In a preferred embodiment of the invention, relative wall 18a, the 18b of the groove of relative wall 58a, the 58b of the groove of rotor and stator are approximately perpendicular to the axis of axle.
In one embodiment of the invention, as shown in Figure 3, the relative wall of each of rotor recesses is axially aligned with the relative wall of corresponding stator groove, makes relative wall 58a axially align in relative wall 18a, and wall 58b axially aligns in relative wall 18b relatively.This structure has formed the zone, rectangular cross-section, in this zone, accommodates the rotor mating component 36 and the interior mating component 32 of parts 30 in groups.
In a preferred embodiment of the invention, the wall of at least one wall of stator groove 54 and corresponding rotor recesses 14 setover, make rotor groove wall 58a or 58b and accordingly wherein a pair of of stator groove wall 18a or 18b axially do not line up.
An example of this biasing is shown among Fig. 5, and wherein, the wall of this stator groove 18b comprises the rear wall 20 of this stator.Fig. 5 has also shown another embodiment of the present invention, and wherein, a wall of rotor recesses is eliminated, thereby does not have rotor groove wall 58b as shown in Figure 3.In this embodiment, this in groups parts extruding be installed in this rotor.This press fit embodiment's parts in groups have outer diameter fixing on the length of whole parts in groups.
With reference to figure 7, in another embodiment of the present invention, this stator 10 also is included in the oily exhaust port 22 of the inner shaft side of Sealing, so that the oil that will move in the component area is in groups discharged.Through after a while, oiling agent may be through this stator and parts and leaking out in groups.This oil exhaust port 22 provides and has been used to make oil to turn back to the passage of the bearing cavity side of Sealing, so that lubricated rotating shaft.
In an embodiment more of the present invention, stator 10 also comprises the outlet 24 of atmosphere one side that is positioned at this stator.The pollutant that this outlet 24 allows to move to sealing area is excluded from this assembly.
In a preferred embodiment of the invention, black box comprises rotor 50 and stator 10 and is contained in its interior parts in groups 30.This in groups the rotor mating component 36 of parts 30 cooperate with this rotor recesses 54, thereby the relative wall contact of the axial outside of this rotor mating component 36 and this rotor recesses 54.In most preferred embodiment of the present invention, this rotor mating component 36 " floats " in rotor recesses 54, so that contact in running minimized and friction.When rotor and stator moved axially relative to one another, this rotor mating component 36 will contact with the respective wall of this rotor recesses 54 so.
Similarly, this stator mating component 32 this stator groove of contact and/or groove walls 18a.Be in operation, this in groups parts in the cavity that forms by rotor and stator, " float ".Yet, if the assembly that is in operation moves, be connected to flexibly this in groups this stator mating component 32 on the parts 30 a kind of mode that makes parts 30 in groups remain on the appropriate location can be provided by the wall 18a that contacts this stator groove 14.
In an embodiment more of the present invention, this in groups parts 30 also comprise the back member 34.Toward each other under the situation of axial motion, this back member 34 prevents that this rotor and stator are in direct contact with one another at rotor and stator.If rotor moves towards stator, then at rotor with before stator directly contacts, this in groups the back member 34 of parts 30 will contact the rear wall 20 of stator.This rotor 50 by rotor recesses 54 relative wall 58a contact and extruding against these parts 30 in groups.This action will force the back member 34 of parts in groups against stator rear wall 20.Since this in groups parts preferably constitute by smooth plastic materials, in groups between parts 30 and the rotor 50 and in groups the frictional force between parts 30 and the stator 10 will be markedly inferior to rotor 50 and directly contact the frictional force that is produced with stator 10.Thus, this in groups parts 30 wear-resistant buffering is provided between this rotor and stator component.So just prolong working life of rotor and stator by minimizing wearing and tearing between two parts.When this in groups parts 30 arrive its useful life period in limited time, can be easy to change, the downtime of operation and renewal cost all are lower than the more situation of exchanging rotor and stator.
As shown in Figure 6, in another embodiment of the present invention, this stator 10 cooperates with this bearing housing 68 hermetically by O shape ring 64.This O shape ring is positioned at the groove of the radial outside that is formed at this stator.This groove is formed especially: make the lower surface of this groove tilt, thereby a side of this groove is deeper than the opposite side of this groove.In structure as shown in Figure 6, be shallower than a side away from the body of this bearing housing in a side of the body that approaches this bearing housing most.Its effect is if stator begins to move away the body of this bearing housing, then to make compression of O shape ring and the increase pressure to bearing housing.The pressure of this increase will stop moving of this stator.
Special angle as shown in Figure 6 and position only are used for for example.In different embodiments, this inclined surface can comprise a part or the whole bottom portion of groove of bottom portion of groove.The O shape annular groove that should understand this principle and inclination can be used for by the similar groove on the inner radial surface of rotor rotor 50 being fixed to rotating shaft.Therefore, when unfavorable axial motion occurring, can use multiple possible groove shapes to increase the compression of O shape ring.
In another aspect of this invention, provide the method that is used for the fitting tight assembly.In assembling, the parts in groups 30 of embodiments of the invention are inserted between stator 10 and the rotor 50, to form black box.The method for optimizing of fitting tight assembly comprises: at first make this parts 30 and rotor 50 cooperations in groups; Then, parts and rotor cooperate with this stator 10 and bearing housing in groups to make this.
This method further comprises: parts 30 in groups are provided, and it comprises: rotor mating component 36, stator mating component 32 and back member 34; And, rotor is provided, this rotor comprises the rotor annular flange 52 of extending vertically, and has groove 54 in it; Make this in groups parts 30 be positioned at the inside of this rotor 50, thereby this in groups the groove 54 in the annular flange flange of rotor mating component 36 and this rotor of parts cooperate.Contact between relative wall 58a, the 58b of rotor mating component 36 and this rotor recesses guarantee this in groups parts keep in position.
With the rotor 50 that assembled and in groups parts 30 cooperate with this stator 10.This stator 10 comprises the annular flange flange 12 of extending towards rotor 50 and at the groove 14 of its radial outside.Along with parts 30 are around these annular flange flange 12 slips in groups, this stator mating component 32 tilts and distortion enters space 40, and parts slide into around the position of this stator ring flange to allow in groups.In case stator mating component 32 is pushed through this stator lip 16, then this stator mating component 32 is in stator groove 14, and the position of extension is got back in bending freely.This stator mating component 32 will be in the position of extension through extending at groove 14 behind the excircle of this stator lip 16.In this position, this stator mating component 32 will be used for by preventing that rotor from leaving the axial motion of stator, and a kind of maintenance mode of parts 30 and rotor 50 and this stator 10 in groups is provided.
In this position, this in groups parts 30 make this rotor 50 and stator 10 in groups by filling rotor 50 and stator 10 space therebetween and relative wall 58a, the 58b that contacts this rotor recesses.This mating component 32 is positioned at this groove 14 of stator 10, and in service normally, not relative with this wall 18a, 18b contact.And if when applying axial force and make rotor 50 move away stator 10, wall 58b will contact with rotor mating component 36 in the zone of wall 38 relatively.This will make in groups, and parts 30 move with rotor 50.By the contact of stator mating component 32, stop this moving of parts 30 in groups with the relative wall 18a of stator groove 14.By this action, use comprise rotor, in groups parts and stator black box in groups.The method of unique dismounting sealing assembly is to apply enough big axial force, irretrievably to damage this parts in groups.
Except the effect in groups of black box, this in groups parts also between rotor and stator, set up the non-contact relation.At rotor 50 under the situation of stator 10 axial motions, this rotor will with this in groups parts 30 contact, and make the back member 34 contact with this stator rear wall 20.This in groups parts 30 be designed such that this back member 34 is towards the extension of the stator extension greater than this rotor annular flange 52.Therefore, prevent that this rotor annular flange from contacting with the rear wall of this stator, by preventing the excessive wear of element, improved the working life of rotor and stator thus.
In one embodiment, rotor, stator, arbitrary in parts and the O shape ring or all are formed by a more than part in groups.With reference to figure 8, in an exemplary embodiment, stator and rotor can be made up of two-part respectively.As shown in this exemplary embodiment, this structure can make things convenient for the assembling of Sealing and disassemble, thereby can reduce the dead time (downtime) of equipment, thereby can reduce cost.Two-part 810,820 of rotor can be along a planar registration that extends through this root diameter and spin axis.The first portion 810 of rotor can have first edge 840 and second edge 850.The second portion 820 of rotor 800 can have first edge 870 and second edge 880.First edge 840 of the first portion 810 of rotor can align with second edge 880 of second portion 820, and first edge 870 of the second portion 820 of rotor can align with second edge 850 of first portion 810, thereby forms this rotor.
With reference to figure 9, it shows the plan view according to the rotor 900 of an exemplary embodiment.This rotor 900 can be made up of two-part.Two-part 910,920 of rotor can extend through the diameter 930 of rotor 900 and the planar registration of spin axis along one.The first portion 910 of rotor 900 can have first edge 940 and second edge 950.The second portion 920 of rotor 900 can have first edge 970 and second edge 980.First edge 940 of the first portion 910 of rotor 900 can align with second edge 980 of second portion 920, and first edge 970 of the second portion 920 of rotor 900 can align with second edge 950 of first portion 910, thereby forms this rotor 900.
Again with reference to figure 8, two-part 812,822 of stator can be along a planar registration that extends through stator diameter and spin axis.The first portion 812 of stator can have first edge 842 and second edge 852.The second portion 822 of stator can have first edge 872 and second edge 882.First edge 842 of the first portion 812 of stator can align with second edge 882 of second portion 822, and first edge 872 of the second portion 822 of this stator can align with second edge 852 of first portion 812, thereby forms this stator.
With reference to Figure 10, it shows the plan view of stator 1002.Stator 1002 can be made up of two-part.Two- part 1012,1022 of stator can extend through the diameter 1032 of stator 1002 and the planar registration of spin axis along one.The first portion 1012 of stator 1002 can have first edge 1042 and second edge 1052.The second portion 1022 of stator 1002 can have first edge 1072 and second edge 1082.First edge 1042 of the first portion 1012 of stator 1002 can align with second edge 1082 of second portion 1022, and first edge 1072 of the second portion 1022 of this stator 1002 can align with second edge 1052 of first portion 1012, thereby forms this stator 1002.
With reference to Figure 11, in another exemplary embodiment, parts 1104 can be made up of two-part in groups.Two- part 1114,1124 of parts can extend through in groups the diameter 1143 of parts 1104 and the planar registration of spin axis along one in groups.This in groups the first portion 1114 of parts 1104 can have first edge 1144 and second edge 1154.The second portion 1124 of parts 1104 can have first edge 1174 and second edge 1184 in groups.The first portion 1114 of parts 1104 and first edge 1144 can align with second edge 1884 of second portion 1124 in groups, and first edge 1174 of the second portion 1124 of parts 1104 can align with second edge 1154 of first portion 1114 in groups, thereby forms this parts 1104 in groups.
With reference to Figure 12, in another exemplary embodiment, rotor O shape ring 1206 can be made up of two-part.Two- part 1216,1226 of rotor O shape ring can be along the diameter 1236 that extends through rotor O shape ring 1206 and the planar registration of spin axis.The first portion 1216 of this rotor O shape ring 1206 can have first edge 1246 and second edge 1256.The second portion 1206 of rotor O shape ring 1206 can have first edge 1276 and second edge 1286.The first portion 1216 and first edge 1246 of rotor O shape ring 1206 can align with second edge 1286 of second portion 1226, and first edge 1276 of the second portion 1226 of rotor O shape ring 1206 can align with second edge 1256 of first portion 1216, thereby forms this rotor O shape ring 1206.
In another one exemplary embodiment, with reference to Figure 13, stator O shape ring 1308 can have by individual part and assembles.Stator O shape ring 1318,1328 can extend through the diameter 1338 of stator O shape ring 1308 and the planar alignment of spin axis along one.The first portion 1318 of stator O shape ring 1308 can have first limit 1348 and second limit 1358.The second portion 1328 of stator O shape ring 1308 can have first limit 1378 and second limit 1388.Can align with second limit 1388 of the second portion 1328 of stator O shape ring 1308 in first limit 1348 of the first portion 1318 of stator O shape ring 1308, and second edge 1358 of the first portion 1318 of stator O shape ring 1308 can align with first edge 1378 of the second portion 1328 of stator O shape ring 1308.
In one embodiment, with reference to Figure 12 and Figure 13, can be stacked and placed on second limit 1286,1388 of second portion 1226,1328 by first limit 1246,1348 and first limit 1276,1378 of second portion 1226,1328 is stacked and placed on second limit 1256,1358 of first portion 1216,1318, form O shape ring 1206,1308 first portion 1216,1318.In various embodiment of the present invention, can adopt the various compound modes that the limit is stacked.
In another embodiment, with reference to Figure 10 and Figure 13, stator O shape ring 1308 can adhere to stator 1002.The first portion 1318 of stator O shape ring can adhere to along first stationary part 1012.The second portion 1328 of stator O shape ring can adhere to along second stationary part 1022.Similarly, in another embodiment, with reference to Fig. 9 and Figure 12, rotor O shape ring 1206 can adhere to stator 900.The first rotor O shape loop section 1216 can adhere to along the first rotor part 910.Second rotor O shape ring 1226 can adhere to along second rotor portion 920.Described adhesion can be so that install easily.
In another embodiment, with reference to Fig. 3, Fig. 9 and Figure 11, parts 1104 can adhere to rotor 900 along rotor recesses 54 in groups.First in groups parts part 1114 can along the first rotor part 910 adhere to rotor recesses 54, the second in groups parts part 1124 can adhere to rotor recesses 54 along second rotor portion 920.Described adhesion can be so that install easily.
In one embodiment, with reference to Fig. 8, Fig. 9 and Figure 14, can adopt at least one fastening piece with rotor portion 810,820 combinations.Described at least one fastening piece can adopt the form of screw 805,807, and described screw is at the first portion 810 and the second portion 820 of Container 1405,1407,960 place's engage rotator 1400.Described fastening piece also can adopt snap ring, pin, bolt or other to well known to a person skilled in the art means, so that described two parts 910,920 are tightened together.Be noted that described fastening piece can be used for optionally or the other parts of fastening described Sealing additionally, as stationary part.
In another embodiment, with reference to Fig. 8, the plane that stationary part 812,822 is aimed at can be departed from the plane that rotor portion 810,820 is aimed at.In one embodiment, the plane that can aim at perpendicular to stationary part 812,822 substantially, the plane aimed at of rotor portion 810,820.In an alternate embodiment, a part of alignment surface can and other alignment surface between have various required variations.
In an one exemplary embodiment,, form described stator and two rotor portions 810,820 are aimed at round the stator of described formation by two stationary parts 812,822 being aimed at one, thereby can form a Sealing with reference to Fig. 8.In this one exemplary embodiment, the plane that the plane that rotor portion 1010,1020 is aimed at can be aimed at stationary part 1110,1120 is vertical substantially.
In the described here one exemplary embodiment, shown rotor, stator, parts and O shape ring include first portion and second portion in groups.Yet each can comprise that single part can comprise that maybe three or three are with top to be noted that these parts.In addition, described Sealing can comprise the combination of the parts with different piece, for example has the stator and the combination with stator of three parts of first portion and second portion.
In another embodiment, rotor 900, stator 1002, any or all part of parts 1104, rotor O shape ring 1206, stator O shape ring 1308 can be identical in groups.Same parts is to be easy to make and can reduce manufacture cost.For example, in one embodiment, stator can be formed by three identical parts.In another one exemplary embodiment, rotor can be formed by two identical parts.
Though invention has been described with reference to specific embodiment, should understand, these embodiments only are used to explain principle of the present invention.Person of skill in the art will appreciate that parts in groups of the present invention and assembly can construct and realize with other materials, other modes and mode of execution.Therefore, description herein should be as restriction of the present invention, and as other embodiments that also drop in the scope of the present invention.
Claims (19)
1. assembly that is used for stuffing box bearing case and rotating shaft, wherein this rotating shaft has a spin axis, and this assembly comprises:
Stator, this stator comprises:
First stator department and second stator department, this first stator department and second stator department are along a stator planar registration that extends through stator diameter and this spin axis; With
The stator ring mating flange, this stator ring mating flange extends vertically, and comprises stator groove in its radial side;
Rotor, this rotor comprises:
The first rotor portion and second rotor part, this first rotor portion and second rotor part are alignd along a rotor plane that extends through root diameter and this spin axis; With
The rotor annular mating flange, this rotor annular mating flange extends vertically, and comprises rotor recesses in its radial side;
Annular is parts in groups, and this annular parts in groups comprises:
The first parts portion in groups of parts portion and second in groups, this first in groups parts portion and second in groups parts portion extend through this annular parts planar registration in groups of parts and this spin axis in groups along one;
The stator mating component, it cooperates with this stator groove;
The rotor mating component, it cooperates with this rotor recesses;
Back member, it comprises top margin, base and side, wherein this side from this in groups parts extend to cooperate with this stator;
The neighboring region of two different-diameters, one of them zone are corresponding to this rotor mating component, and another zone is corresponding to this back member.
2. assembly as claimed in claim 1, wherein this first and second in groups parts portion along the alignment this in groups the parts plane be same plane with this first and second rotor part substantially along this rotor plane of aliging.
3. assembly as claimed in claim 2, wherein this first in groups parts portion be connected with this first rotor portion, and this second in groups parts portion be connected with this second rotor part.
4. assembly as claimed in claim 3, wherein this first and second stator department is vertical substantially along this rotor plane of aliging with this first and second rotor part along this stator plane of alignment.
5. assembly as claimed in claim 1, wherein this first rotor portion and this second rotor part are basic identical.
6. assembly as claimed in claim 1, wherein this first stator department and this second stator department are basic identical.
7. assembly as claimed in claim 3, wherein this first rotor portion and this second rotor part are fixed together.
8. assembly as claimed in claim 7 is wherein fixed by the fixed block of screw, snap ring or pin.
9. assembly as claimed in claim 1, wherein this stator also comprises stator O shape ring, this stator O shape ring comprises the first stator O shape ring portion and the second stator O shape ring portion, and wherein this first stator O shape ring portion is connected with this first stator department, and this second stator O shape ring portion is connected with this second stator department.
10. assembly as claimed in claim 1, wherein this rotor also comprises rotor O shape ring, this rotor O shape ring comprises the first rotor O shape ring portion and the second rotor O shape ring portion, and wherein this first rotor O shape ring portion is connected with this first rotor portion, and this second rotor O shape ring portion is connected with this second stator department.
11. an assembly that is used for seal case and axle, this axle is rotatable and extend through this casing with respect to this casing, and this assembly comprises:
Stator, this stator comprises:
At least two stator departments; With
The stator ring mating flange, this stator ring mating flange extends vertically, and comprises stator groove in its radial side;
Rotor, this rotor comprises:
At least two rotor part; With
The rotor annular mating flange, this rotor annular mating flange extends vertically, and comprises rotor recesses in its radial side; And
Annular is parts in groups, and this annular parts in groups comprises:
At least two parts portions in groups;
The stator mating component, it cooperates with this stator groove;
The rotor mating component, it cooperates with this rotor recesses; With
Back member, it comprises top margin, base and side, wherein this side from this in groups parts extend to cooperate with this stator; And
The neighboring region of two different-diameters, one of them zone are corresponding to this rotor mating component, and another zone is corresponding to this back member.
12. assembly as claimed in claim 11, wherein said at least two stator departments are basic identical.
13. assembly as claimed in claim 11, wherein said at least two rotor part are basic identical.
14. assembly as claimed in claim 11, wherein said rotor part is fixed together.
15. assembly as claimed in claim 14 is wherein fixed by the fixed block of screw, snap ring or pin.
16. assembly as claimed in claim 11, wherein this stator also comprises stator O shape ring, this stator O shape ring comprises the first stator O shape ring portion and the second stator O shape ring portion, and wherein this first stator O shape ring portion is connected with this first stator department, and this second stator O shape ring portion is connected with this second stator department.
17. assembly as claimed in claim 11, wherein this rotor also comprises rotor O shape ring, this rotor O shape ring comprises the first rotor O shape ring portion and the second rotor O shape ring portion, and wherein this first rotor O shape ring portion is connected with this first rotor portion, and this second rotor O shape portion is connected with this second stator department.
18. a method that forms the Sealing of bearing housing and rotating shaft, wherein this rotating shaft comprises spin axis, and this method comprises the steps:
Along stator planar registration first a semi-circular stator department and second a semi-circular stator department that extends through stator diameter and this spin axis;
Rotor recesses on the first rotor mating flange radial side of the first semi-circular rotor part makes the first rotor mating component of the first semi-circular parts in groups portion be coupled to this first semi-circular rotor part;
Rotor recesses on the second rotor mating flange radial side of the second semi-circular rotor part makes the second rotor mating component of the second semi-circular parts in groups portion be coupled to this second semi-circular rotor part;
Stator groove on the first stator mating flange radial side of this first semi-circular stator department makes the first stator mating component of the first semi-circular parts in groups portion be coupled to this first semi-circular stator department;
Stator groove on the second stator mating flange radial side of this second semi-circular stator department makes the second stator mating component of the second semi-circular parts in groups portion be coupled to this second semi-circular stator department;
Alignd with this stator groove in the first side of the first back member of this first semi-circular parts in groups portion; And
Alignd with this stator groove in the second side of the second back member of this second semi-circular parts in groups portion.
19. method as claimed in claim 18 also comprises the steps: this first semi-circular rotor part and this second semi-circular rotor part are fixed together.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/709,818 | 2007-02-23 | ||
| US11/709,818 US7427070B2 (en) | 2002-09-30 | 2007-02-23 | Unitizing element and method for assembling a seal |
| US11/812,482 | 2007-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101251192A true CN101251192A (en) | 2008-08-27 |
Family
ID=39954723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101280014A Pending CN101251192A (en) | 2007-02-23 | 2007-06-20 | Split bearing isolator and a method for assembling seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101251192A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102667270A (en) * | 2009-11-11 | 2012-09-12 | 卡勒克密封技术有限责任公司 | Flooded bearing isolator |
| CN112789133A (en) * | 2018-07-27 | 2021-05-11 | 卡尔伯格-基金会 | Connecting part and wearing part holder for a machining head for hot material machining, in particular a plasma torch head, laser head, plasma laser head and method for joining the same |
-
2007
- 2007-06-20 CN CNA2007101280014A patent/CN101251192A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102667270A (en) * | 2009-11-11 | 2012-09-12 | 卡勒克密封技术有限责任公司 | Flooded bearing isolator |
| CN102667270B (en) * | 2009-11-11 | 2015-09-02 | 卡勒克密封技术有限责任公司 | Labyrinth-type excluder |
| CN112789133A (en) * | 2018-07-27 | 2021-05-11 | 卡尔伯格-基金会 | Connecting part and wearing part holder for a machining head for hot material machining, in particular a plasma torch head, laser head, plasma laser head and method for joining the same |
| CN112789133B (en) * | 2018-07-27 | 2023-12-26 | 卡尔伯格-基金会 | Connecting part for a processing head for hot material processing, method for assembling the same and arrangement |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Open date: 20080827 |