CN1653285A - Installation and deployment sleeves for lip seals - Google Patents
Installation and deployment sleeves for lip seals Download PDFInfo
- Publication number
- CN1653285A CN1653285A CN 03810762 CN03810762A CN1653285A CN 1653285 A CN1653285 A CN 1653285A CN 03810762 CN03810762 CN 03810762 CN 03810762 A CN03810762 A CN 03810762A CN 1653285 A CN1653285 A CN 1653285A
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- Prior art keywords
- lip shape
- sealing
- sleeve pipe
- axle
- block piece
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3268—Mounting of sealing rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/002—Sealings comprising at least two sealings in succession
- F16J15/008—Sealings comprising at least two sealings in succession with provision to put out of action at least one sealing; One sealing sealing only on standstill; Emergency or servicing sealings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
- Sealing Devices (AREA)
Abstract
This invention relates to a seal cartridge comprising at least two back-to-back lip seals. A first, generally L-shaped sleeve is applied against the back wall of the seal ring such that its axially extending cylindrical surface retracts the lip portion of the outboard seal into a non-deployed position. A second, generally L-shaped sleeve is fitted up against the back of the first sleeve so as to place the lip end of the inboard seal in a similarly raised or retracted position. Upon installation of the seal ring about the shaft and in the shaft housing, the second, innermost sleeve is removed, such that the inboard lip seal is deployed against the surface of the shaft. Upon detection of leakage past the inboard seal, the first sleeve is retracted to thus deploy the remaining outboard lip seal.
Description
Related application
The application require Ramsay on March 13rd, 2002 application, exercise question for " sleeve pipe is installed and the utilization of lip shape Sealing " the 60/364th, No. 163 U.S. Provisional Applications and Ramsay in March, 2002 application, exercise question be the 60/364th, No. 176 U.S. Provisional Application No. of " utilization of sleeve pipe installation and lip shape Sealing ".
Technical field
The present invention relates to the annular round rotation of passing machine case or main body or reciprocating shaft, the application of lip ring Sealing.This Sealing is used for the annular space between stationary housing or main body part and rotation or the reciprocating shaft is sealed.For example, the oil seal of lip ring is used in the internal-combustion engine usually around rotatingshaft, and is generally used for stoping the axle seepage of the process fluid of water for example or water-based mixture along operating pumps.The present invention relates to around the installation and the selectivity expansion of the lip shape seal element of circulatory motion parts, wherein the circulatory motion parts for example are rotation or reciprocating shaft.
Background technique
Importantly, utilization is with respect to the support of the exterior periphery of the Sealing of the correct centering of shaft centre line, and the lip ring Sealing of annular or lip shape Sealing are in central authorities are embedded into the gap that will seal.If than wide at opposite side, then the function of lip shape Sealing will be lost or a negative effect in a side in this gap.Assigning to the 5th of Ford Motor Company, 013, No. 050 and the 5th, in 052, No. 695 U. S. Patent, a kind of being used for lip shape Sealing disclosed, for example center on the oil seal of rotatingshaft, support and be installed in the instrument in the gap of device, wherein the inner lip of sealing part around axially extended cylndrical surface or casing buckling to retracted mode, be connected in seal radial on the outside plate of extension.After in this withdrawal lip shape Sealing axially is inserted into the stationary housing of this and machine or the gap between the main body, the outside plate that radially extends of this instrument is particularly suitable for cooperating with the shell or the end plate of this machine, as the centering guide.By with the internal diameter interference fit of machine shaft housing, the sealing part is assembled in this gap.Utilize the Sealing of installing like this around this, this instrument is axially return, and makes interior lip flex radially inward into the position that cooperates with this.Can discard can be made of plastic instrument.
In operation, lip shape Sealing is owing to wearing and tearing have limited working life.In latter stage in working life, the joining portion between stationary lip seal and reciprocal/rotatingshaft will produce seepage.When observing seepage, the operation of the fluid of control machine usually must stop, and machine is dismantled at least partly to remove above-mentioned lip shape Sealing and changed.Owing to change lip shape Sealing, and may on operation dead time, increase cost.
Having attempted to propose the whole bag of tricks improves performance and/or prolongs life cycle between the necessary maintenance.Like this, for example, disclose axle sealing system in No. 2836441 U. S. Patent of Doble, wherein this axle comprises conical surface, and the sealing part can axially relocate along this axle, thereby when the sealing part weares and teares, improves the cooperation between Sealing and the axle.No. 3773336 U.S. Patent Publication of Walter such sealing system, wherein spare seal member initially be positioned at the axle (sleeve pipe that perhaps is associated) recess near, thereby avoid and be coupling closing, when needs till.This spare seal member can be coupling by sealing seat or axle/sleeve pipe are axially relocated and with this and touch.The the 5820132nd and No. 6152454 U. S. Patent of Marnot also described such sealing system, wherein this back-up seal initially be positioned at be formed on this stop the district (set back region) near.When this standby Sealing axially relocate in case with this be coupling fashionable, the Sealing that is replaced move to be formed in this stopping the district near, promptly be disengaged with this axle.
The inventor has designed more economical thimble tube system, is used to make lip shape Sealing or Sealing simply but be installed to reliably in the gap of axle, so that axle obtains sealing during machine operation.In addition, the inventor also designs reserve or standby Sealing, to prolong the useful wear-out life of seal operation.
Summary of the invention
In a first aspect of the present invention, provide a kind of ring packing cylindrical shell that endless belt lip seal or lip shape Sealing are housed.The sealing endless belt has inboard footpath forward wall, and this antetheca is connected to axially extended containing wall, and this contains wall as outside diameter wall, and this outside diameter wall is around the lip shape Sealing that is carried by this ring, and extends the back plate with outer radial and stop.This back plate is parallel with the annular extension part of lip shape Sealing and radially extend internally, and the degree of extension is extended with this radially extension part that touches that is coupling than the lip of Sealing and lacked.
Roughly L-shape sleeve pipe has the outer wall that extends axially the cylndrical surface and uprightly, radially extend, and it leans against on the back plate of seal ring, make it extend axially the cylndrical surface the lip of sealing part withdrawal (perhaps promoting) to static, non-expanded position.Sleeve outer wall radially extend the diameter of degree less than seal ring, therefore do not cooperate with the housing or the end plate of machine.
The sealing ring is installed in this gap, and this sleeve pipe is used for seal ring is centered in the gap, and prevention is damaged or is out of shape in this lip limit during installation.Contain the interference fit of wall and the inside diameter surface of shaft housing by seal ring, the axle installation of sealing ring in the shaft housing of machine.This sleeve pipe shifts out after seal ring is installed around axle and in this shaft housing, makes this lip shape Sealing against this unfolded surface, and this sleeve pipe can be discarded then.
By means of cantilever effect, utilize the L-shape of sleeve pipe, this sleeve pipe self centering also self is supported on the seal ring.Like this, the lip limit end of Sealing extends axially the cylndrical surface facing to this sleeve pipe bending pushes the front surface of described sleeve outer wall against the described back plate of being pressed, and the power that acts on this sleeve pipe remains on the appropriate location concentric with this to L shaped sleeve pipe.
In another embodiment of the present invention, be formed with positioning step in the rear end of sleeve pipe cylndrical surface, engage and sleeve pipe is snapped on the sealing ring with internal diameter by plate behind this step and the seal ring.
In a second aspect of the present invention, provide the endless belt lip seal that at least two butt joints are housed or the ring packing cylindrical shell of lip shape Sealing.The sealing endless belt has inboard footpath forward wall, and this antetheca is connected on the axially extended containing wall, and this contains wall as outside diameter wall, and this outside diameter wall is around a series of lip shape Sealings that carry by this ring, and extends rear wall with outer radial and stop.This rear wall is parallel with the annular extension part of lip shape Sealing and radially extend internally, and the degree of extension is extended with this radially extension part that touches that is coupling than the lip shape portion of Sealing and lacked.
Have extend axially the cylndrical surface and uprightly, radially extend outer wall first, roughly L-shape sleeve pipe is positioned on the rear wall of seal ring, make it extend axially the cylndrical surface with the lip of outer seal withdrawal (perhaps promoting) to static, non-expanded position.First sleeve outer wall radially extend the diameter of degree less than seal ring, therefore do not cooperate with the housing or the end plate of machine.
Also have extend axially the cylndrical surface and radially extend rear wall second, roughly L-shape sleeve pipe is installed on the rear portion of first sleeve pipe, thereby inboard seal is placed in the same lifting or retracted position, and wherein this extends axially the cylinder face length of cylndrical surface than first sleeve pipe.
Utilization is positioned at first and second sleeve pipes on the sealing cylindrical shell, and the sealing ring is installed in this gap, and this sleeve pipe is used for seal ring is centered in the gap, and prevention is damaged or is out of shape in this lip limit during installation.Contain the interference fit of wall and the inside diameter surface of shaft housing by seal ring, the sealing ring is centered around the axle installation in the shaft housing of machine.After the sealing ring was installed around this axle and in this shaft housing, the second inner sleeve shifted out, thus this inboard lip seal against this axle expansion, this second sleeve pipe can be discarded then.This first sleeve pipe keeps together with the seal ring of installing like this, when may wear to the degree that can detect seepage when inboard seal.Detecting through after the seepage of inboard seal, this first cannula retraction, thereby will be in support, the next outside or other lateral lip shape Sealings launch.According to the present invention, although because the wearing and tearing of the Sealing before each all will still provide the effect that stops seepage to a certain degree, and therefore reduction acts on next pressure in abutting connection with outer seal.Next or the standby outer seal of this expansion will be longer than the front sealing part abrasion life-span.When launching a last outer seal, this first sleeve pipe will remove from the sealing ring, and can discard.
By means of cantilever effect, utilize the L-shape of sleeve pipe, this sleeve pipe self centering also self is supported on the seal ring.Like this, the lip limit end of Sealing extends axially the bending of cylndrical surface against described front surface of being pressed back plate pushing sleeve pipe rear wall facing to this sleeve pipe, and the power that acts on simultaneously on this sleeve pipe remains on the appropriate location concentric with this to L shaped sleeve pipe.
According to another embodiment of the present invention, first sleeve pipe is equipped with outside sealing lip, to stop atmospheric pollutant, second sleeve pipe also is used for described isolation seal is remained on retracted position, has installed around this after while, second sleeve pipe removed up to sealed cylinder.
In another embodiment of the present invention, be formed with positioning step in the rear end of the first sleeve pipe cylndrical surface, by this step engage with the internal diameter of seal ring rear wall and the first sleeve pipe centering to the sealing ring.
From following detailed description and embodiment, many other advantages and the feature of present disclosure will easily obtain.
Description of drawings
With reference to following accompanying drawing, under the disclosure theme in the field those of ordinary skill can be more readily understood thimble tube how to construct and use the present invention to be used for lip shape Sealing and install and development system, wherein:
Fig. 1 is the sectional view of lip shape sealed cylinder, wherein shows to utilize sleeve pipe that the sealing part is supported on withdrawal, non-expanded position, the lip shape Sealing of arranging like this is installed in the shaft housing gap of axle, and removes sleeve pipe to launch this lip shape Sealing;
Fig. 2 is the lip shape sealed cylinder sectional view that shows the sleeve pipe stairstepping;
Fig. 3 is the sectional view of lip shape sealed cylinder, wherein shows how before transportation this sleeve pipe to be in place, and performs the sealing cylindrical shell is installed to preparation in this gap;
Fig. 4 is the sectional view of many lips shape Sealing, wherein utilizes first sleeve pipe that this outer seal is supported on withdrawal, non-expanded position;
Fig. 5 is that lip shape sealed cylinder that second sleeve pipe is applied on these a plurality of lip shape Sealing cylindrical shells and arranges like this is installed to the sectional view in this shaft housing gap, thereby second sleeve pipe is removed to launch this inboard lip seal;
Fig. 6 is the sectional view of lip shape sealed cylinder, wherein show of the application of sealing lip limit at this first sleeve pipe rear wall, how to show simultaneously with second sleeve pipe this rear wall lip limit is kept and launches against extension, when being installed in this gap, remove second sleeve pipe at seal ring;
Fig. 7 is the partial sectional view that shows the stair-stepping lip shape of first sleeve pipe sealed cylinder; And
Fig. 8 is the sectional view of lip shape sealed cylinder, wherein shows first sleeve pipe, how sleeve pipe is in place before transportation, and perform sealed cylinder is installed to preparation in the gap.
Embodiment
Describe the present invention by means of specific embodiment below, be understandable that simultaneously, this specification will be understood that it is the example of inventive principle.
Fig. 1 shows the application of sleeve pipe 10 on lip shape sealed cylinder 20 that is called as mounting sleeve, and wherein this cylindrical shell 20 is equipped with annular lip seals 21, and this lip shape Sealing has towards interior flexible lip 22.This lip shape sealed cylinder 20 is installed in the mesopore between axle 30 and machine outer cover, housing, gland or other stationary structure 31, is used for to sealing around this gap, in case fluid stopping body seepage.For example, axle 30 can be the rotatingshaft in the automobile equipment of for example motor, transmitting set, speed change gear or gear-box.Simultaneously, for example, axle 30 also can be the reciprocating shaft in piston-cylinder pump or motor device.
As shown in Figure 1, mounting sleeve 10 is a L-shape structure, has inside axially extended cylndrical surface 11.11 rear side or outboard end are radially upright rear wall 12 in the cylndrical surface.
The ring-type element of lip shape sealed cylinder 20 for extending with one heart around axle 30.Seal ring 23 encases it around the external diameter of sealing cylindrical shell, and wherein seal ring 23 has the front end that limited by the footpath forward wall, axially contains wall and footpath plate backward, and is wherein should the back plate shorter, therefore provides the gap between footpath and spools 30 the external diameter within it.Seal ring 23 is equipped with lip shape Sealing 21.This lip shape Sealing has the roughly profile of L-shape, and wherein flexible lip leans against on the external diameter of axle 30 for example by the effect of garter spring 24.Therefore, the internal diameter of the flexible lip of each Sealing is selected to than axle 30 external diameters little (at its serviceability).In the use, this lip shape sealed cylinder keeps securely by the interference fit with these structure 31 internal diameters, thus the flexible lip of Sealing launch against this outer surface, this allows according to the present invention.
As shown in Figure 1, the purposes of mounting sleeve is at first its installation to be resisted against on the back plate of cylindrical shell seal ring, thus the inside of plate behind the 11 process seal rings of the cylndrical surface of sleeve pipe, and below the sealing part, thereby the flexible lip 22 of sealing part is raise, do not carry out possible contacting with this.This mounting sleeve is installed on this cylindrical shell seal ring, makes plate adjacency behind the front of sleeve pipe upstanding wall 12 and the sealing ring.Contact behind sleeve pipe upstanding wall 12 and the seal ring between the plate is used for the location and installation sleeve pipe, and is used for lifting by cylndrical surface 11 these flexible lip of alignment.This alignment forms by the cantilever action of utilizing mounting sleeve L-shape.Like this, when fitting together with lip shape sealed cylinder, the flexible lip 22 of Sealing radially inwardly is pressed on the external diameter of sleeve pipe cylndrical surface 11, but simultaneously, by means of the upstanding wall 12 on the back plate that abuts against sealing ring 23, this cylndrical surface remains on the level above this.Then, the sealing cylindrical shell is installed on this machine outer cover, shown in left hand among Fig. 1.
Utilize the sleeve pipe that so is assembled on this lip shape sealed cylinder, and the sealing lip that is raised the Sealing that is disengaged with this external diameter, so seal ring is applied on the gap between axle 30 and the shell mechanism 31, and be press fit in the gap that seal ring therefore is held in place.After being installed to seal ring in the annular space, axially extract mounting sleeve then out, so this lip shape Sealing expansion, thereby this flexible lip sealably cooperates with the external diameter of axle 30.
The present invention imagination be that this mounting sleeve can be by metal, preferably made by aluminium or hard plastic material.What also imagine simultaneously is that the upper end of this sleeve pipe upstanding wall can be formed with the grip part of recess or other form, so that manually it is extracted out from the sealing cylindrical shell.What note in addition is that according to the present invention, the radially extension degree of this sleeve pipe upstanding wall is shorter, does not arrive the external diameter of this cylindrical shell seal ring.Owing to be implemented in location and the alignment that is assembled into the sealed cylinder middle sleeve by the action of above-mentioned cantilever, therefore upstanding wall is further stretched out or use other device with the surface alignment of this machine case 31.
Fig. 2 shows another embodiment of the mounting sleeve 13 that has utilized step register 14.The interior angle place of this step 14 between this cylndrical surface and upright rear wall 12.The purposes of this step 14 is, when this mounting sleeve is assembled on the sealing cylindrical shell, and this sleeve pipe rear wall front near the sealing shell after during the rear surface of plate, its back plate internal diameter with this cylindrical shell seal ring 23 is consistent.This step 14 is used between sealing cylindrical shell installation period, further aligns and locatees this mounting sleeve on the sealing cylindrical shell and around axle 30.The mounting sleeve 13 of band step 14 is according to as above working in conjunction with the described inventive operation of Fig. 1.
Referring to Fig. 3, show such system from right to left, by means of this system, before the complete assemblies shipment of preparing to install, this mounting sleeve can be in place with this lip shape sealed cylinder 20.For this sleeve pipe 10 being applied to the inner space of this lip shape sealed cylinder 20, the cylindrical plugs 50 of suitable band recess is set, wherein this plunger 50 has diameter reduction rear end 51, in this front, rear end is frustum of a cone guiding surface 52 and constant diameter intermediate surface 53, and this diameter reduction end is recessed downwards from this constant diameter intermediate surface 53.The external diameter of rear surface 51 is admitted the cylndrical surface part of this sleeve pipe with concentric manner.Then, this plunger moves forward and passes the interior central space that is limited by the sealing cylindrical shell.Then, sleeve-assembled to sealed cylinder, when the upstanding wall of sleeve pipe near the back plate of cylindrical shell on the time, plunger continues to pass through the central space of sealed cylinder.Make sleeve pipe be in such position like this, place with respect to the sealed cylinder center this position, engages with the flexible lip of lip shape Sealing simultaneously, lip is promoted with axle to be separated, return up to sleeve pipe, the sealing of lip shape launches against the axle external diameter, and wherein the sealing cylindrical shell is installed around this axle.
From following description, can more specifically understand size and tolerance in structure and the assembly in the above-mentioned sleeve arrangement according to the illustrative structures size.With reference to figure 1, the size of representing with inch is as follows:
Diameter of axle W=1.625
Interior lip footpath R=1.560 under its relaxed state
The internal diameter S=1.670 of plate behind the sealing shell
This mounting sleeve cylndrical surface external diameter T=1.667
This mounting sleeve cylndrical surface internal diameter U=1.630
This mounting sleeve rear wall external diameter V=2.5
This cylindrical shell seal casinghousing external diameter X=2.80.
In the such embodiment's who here mentions the background, these step 14 external diameters of describing in conjunction with Fig. 2 will be 0.003 inch, this size less than this lip shape sealed cylinder after the plate internal diameter, wherein the step register mounting sleeve is applied on this lip shape sealed cylinder.
Another aspect of the present invention again, Fig. 4 shows and is called as first sleeve pipe 110 that launches sleeve pipe and is applied on the lip shape sealed cylinder 120, wherein lip shape sealed cylinder 120 is equipped with a plurality of axially continuous lip shape Sealings, here be two lip shape Sealings, the inboard lip shape Sealing 121 and the lip shape Sealing 122 in the outside.Lip shape sealed cylinder 120 be installed in the axle 130 and machine case, outer cover, gland or other stationary structure 131 between mesopore in, be used to seal gap around this, prevent fluid leaks.For example, axle 130 can be the rotatingshaft in automobile equipment, and this automobile equipment for example is motor, transmission, speed change gear or gear-box.Simultaneously, for example, this 130 also can be a reciprocating shaft in piston-cylinder pump or motor device.
As shown in Figure 4, this launches sleeve pipe 110 is shape, has the cylndrical surface 111 of inwardly axially extending.At the rear side of this cylndrical surface 111 or outboard end is upstanding wall 112 radially.
Lip shape sealed cylinder 120 is a ring-type element, is used for extending with one heart around this axle 130.Sealing cylindrical shell external diameter is encased by seal ring 123, and wherein seal ring 123 has the front end that limited by the footpath forward wall, axially contains wall and footpath plate backward, and is wherein should the back plate shorter, therefore provides the gap between the external diameter of footpath and axle 130 within it.Seal ring 123 is equipped with a pair of annular lip seals 121 and 122, and each lip shape Sealing has roughly L shaped profile, and wherein flexible lip for example leans against on the external diameter of axle 130 by the effect of garter spring 124.Therefore, the internal diameter of the flexible lip of each Sealing is chosen to the external diameter little (at its operable state) than axle 130.In the use, lip shape sealed cylinder utilizes with the interference fit of structure 131 internal diameters and firmly keeps, thereby the flexible lip of Sealing can be against the axle outwardly deploying, and this allows according to the present invention.
As shown in Figure 4, the purposes of launching sleeve pipe is at first to install to be resisted against behind this cylindrical shell seal ring on the plate, make the cylndrical surface 111 of sleeve pipe pass behind the seal ring intralamellar part and below outer seal 122, so that the flexible lip of outer seal is upwards promoted leave and this may position contacting.This expansion sleeve pipe is installed on this cylindrical shell seal ring, makes plate adjacency behind the front of this sleeve pipe upstanding wall 112 and the sealing ring.Contact behind sleeve pipe upstanding wall 112 and the seal ring between the plate is used for making and launches the sleeve pipe location, and passes through the height of these cylndrical surface 111 these flexible lip of alignment.By utilizing the cantilever action of launching sleeve pipe L-shape to realize this alignment.Therefore, when with the assembling of this lip shape sealed cylinder, 122 flexible lip of outer seal radially inwardly is pressed on the external diameter of sleeve pipe cylndrical surface 111, but simultaneously, by means of the upstanding wall 112 near seal ring 123 back plates, this cylndrical surface keeps inwardly pressing this axle.As Fig. 4 left-hand part, utilize the sealed cylinder be installed in this machine case, this expansion is used for this outer seal of filling, does not influence the expansion of this inboard seal simultaneously.
As shown in Figure 5, this invention comprises second sleeve pipe 140 that is called as mounting sleeve, and this sleeve pipe 140 also is L shaped, have elongated, extend axially cylndrical surface 141 and upright end wall 142.From right to left, mounting sleeve 140 is applied to the back of launching sleeve pipe 110 in Fig. 5, makes end wall 142 and rear wall 112 adjacency of launching sleeve pipe, and cylndrical surface 141 extension below the cylndrical surface 111 of launching sleeve pipe, and is launching telescopic shaft to extending internally.The inner of this mounting sleeve is used for making the sealing lip of cylindrical shell 120 inboard seal to promote, and just as discussed above, this mounting sleeve is positioned and aligns and this expansion thimble joint.Utilize the sleeve pipe that so is assembled on this lip shape sealed cylinder, and from the sealing lip of the Sealing that promotes this external diameter engages, so the sealing ring is applied on the gap between axle 130 and the shell mechanism 131, and be press fit in the gap that seal ring therefore is held in place.After the sealing ring was installed to this annular space, this mounting sleeve was return vertically, then this inboard lip seal expansion, thus its flexible lip cooperates with axle 130 external diameters hermetically.So, split by making this sleeve pipe, perhaps preferably, this sleeve pipe is split at axially weak line (not shown), this is return sleeve pipe and can shift out and discard from the state around this, and machine is not stopped.
Operational phase in Fig. 5 shown in the left side, the inboard seal in sealed cylinder 120 in action.This outer seal is not coupling with this and touches, and lay in stand-by by means of the expansion sleeve pipe of so installing with sealed cylinder.Can from this gap, detect seepage when inboard seal may wear to, for example observe seepage, then launch sleeve pipe and withdraw from from the sealing cylindrical shell,, continue this gap of sealing so that launch this outer seal this moment in the mounting sleeve mode.The present invention imagination be, outer seal is longer than the wear-out life of inboard seal, this be because, although previous expansion of inboard seal and loss can be dwindled the leak pressure that acts on this outer seal.
What the present invention also imagined is, this launch and mounting sleeve in one of both or both can be by the metal manufacturing, preferably by aluminium or as acrylic acid hard plastic material manufacturing.In addition, because plastics are generally more crisp than metal, therefore when when the sealing cylindrical shell removes sleeve pipe, the sleeve pipe that is made of plastics is easier to break.What also imagine simultaneously is that the upper end of sleeve pipe upstanding wall can be formed with the grip part of recess or other form, so that manually it is extracted out from sealed cylinder.What note in addition is that according to the present invention, the radially extension degree of sleeve pipe upstanding wall is shorter, does not arrive the external diameter of this cylindrical shell seal ring.Because in being assembled into the sealing cylindrical shell time, therefore the location and the aligning of cantilever action the carrying out sleeve pipe by above-mentioned discussion needn't make this upstanding wall further stretch out or use other device to carry out surface alignment with this machine case 131.
As another embodiment of the sleeve arrangement of above-mentioned discussion, Fig. 6 shows such expansion sleeve pipe, and wherein lip shape Sealing 113 is fixed on the rear surface of these expansion sleeve pipe 110 upright rear walls.This lip shape Sealing 113 is orientated, and when launching as shown in Figure 6, its flexible lip will engage with these axle 130 external diameters.Like this, lip shape Sealing 113 for example is used for isolating that dust, salt, water or the like atmospheric pollutant enters this lip shape sealed cylinder 120 to avoid them, more particularly prevent these pollutants enter between inboard and the outer seal the gap and will be regional when launching the back outer seal against axle thereon.
These isolation seal 113 preferred combination are launched recess on sleeve pipe 110 rear wall rear surfaces to this.During installation, this mounting sleeve is a modified model 140, its operation is identical with foregoing expansion sleeve pipe 110, just when this isolation seal exists, the cylndrical surface 141 of this mounting sleeve also will be used for making the lip of Sealing 113 to promote, and recess 143 is formed in the rear wall of sleeve pipe 140, to hold the lip of Sealing 113.When removing this mounting sleeve, extract this sleeve pipe out and also will launch isolation seal 113 with the expansion inboard seal.
Fig. 7 shows another embodiment of the expansion sleeve pipe 110 that wherein utilizes step register 114.The interior angle place of step 114 between this cylndrical surface and upright rear wall 112.The purposes of step 114 is, when this launches sleeve-assembled to the sealing cylindrical shell, and this sleeve pipe rear wall front near the sealing shell after during the rear surface of plate, its back plate internal diameter with cylindrical shell seal ring 123 is consistent.Between sealing cylindrical shell installation period and during the cylindrical shell seal operation, to return up to this expansion sleeve pipe, this step 114 is used for further this expansion sleeve pipe being located in neutralization on sealed cylinder and around axle 130.In other words, the expansion sleeve pipe 110 of band step 114 is according to working in conjunction with Fig. 4 and the described creative operation of Fig. 5.
At last, referring to Fig. 8, show such system from right to left, by means of this system, before the complete assemblies shipment of preparing to install, this expansion or mounting sleeve can be in place with this lip shape sealed cylinder 120.For sleeve pipe, expansion sleeve pipe 110 as shown in Figure 8 is applied to the inner space of this lip shape sealed cylinder, the cylindrical plugs 150 of suitable band recess is provided, wherein plunger 150 has the rear end 151 of diameter reduction, in this front, rear end is frustum of a cone guiding surface 152 and constant diameter intermediate surface 153, and this diameter reduction end is recessed downwards from this constant diameter intermediate surface 153.The external diameter of rear surface 151 is admitted the cylndrical surface part of this sleeve pipe with concentric manner.Then, this plunger moves forward and passes the interior central space that is limited by the sealing cylindrical shell.Then, this sleeve-assembled is to the sealing cylindrical shell, and when the upstanding wall of this sleeve pipe during near the upright rear surface of the back plate of this cylindrical shell or front sleeve pipe, this plunger continues to pass through the central space of sealing cylindrical shell.Make this sleeve pipe be in such position like this, that is, place with respect to sealing cylindrical shell center, and engage with the flexible lip of this lip shape Sealing, this lip lifting and the axle of suit sealed cylinder are separated, return up to this sleeve pipe, and this lip shape Sealing launches against this external diameter.
From the description of following typical structure size, can more specifically understand size and tolerance in structure and the assembly in above-mentioned two sleeve arrangement.Inventor's these sizes after tested also finds it is satisfied.With reference to figure 4-6, the size of representing with inch is as follows:
Diameter of axle A=1.625
Interior lip footpath B=1.560 under its relaxed state
The back plate internal diameter C=1.720 of can
Launch outer diameter D=1.717 of the cylndrical surface of sleeve pipe
Launch the internal diameter E=1.670 of the cylndrical surface of sleeve pipe
Launch the rear wall external diameter F=2.50 of sleeve pipe
The external diameter G=2.80 of cylindrical shell seal casinghousing
The external diameter H=1.667 of the cylndrical surface of mounting sleeve
The internal diameter J=1.628 of the cylndrical surface of mounting sleeve
The interior lip of isolation seal footpath K=1.615 under its relaxed state.
Here among the embodiment who mentions, the external diameter of the step of describing in conjunction with Fig. 7 114 is 0.003 inch, this size less than this lip shape sealed cylinder after the internal diameter L of plate, wherein step register is launched sleeve pipe and is applied on this lip shape sealed cylinder.
Although this specification provides for detailed description of preferred embodiment, but should be understood that, do not breaking away from the spirit and scope of the invention that limits as the accessory claim book and reasonably under the situation of equivalent scope, can install and various remodeling and variation are carried out in the structural arrangements and the operation that launch lip shape sealing system disclosed sleeve pipe here.For example, it is contemplated that, can specifically should be used for according to the present invention in conjunction with specific embodiments whole Sealings and casing size as mentioned above changed.What it is also contemplated that is that in operation, owing to have only the barometric pressure sealing, therefore the seal interference between isolation seal and axle external diameter is with relatively low.What it is also contemplated that is that compatible grease lubricant can be squeezed into before transportation in the sealed cylinder cavity of sleeve-assembled.
Claims (17)
1. one kind is used for lip shape sealed cylinder that the zone between axle and the surrounding structure is sealed, comprising:
Seal ring with front-end and back-end, described seal ring encase a lip shape Sealing annularly, and described lip shape Sealing radially inwardly pushes towards described axle, and selectively cooperate with described axle; And
The mounting sleeve that axially aligns with described seal ring, described mounting sleeve comprises annular block piece, when described mounting sleeve is in initial position, described annular block piece separates described lip shape Sealing and described axle, described mounting sleeve can leave described initial position along described axle and axially move, so described annular block piece stops described lip shape Sealing and described axle are separated, thereby described lip shape Sealing is cooperated with described axle.
2. lip shape sealed cylinder as claimed in claim 1 also comprises:
The footpath of seal ring is plate backward, and described back plate has center hole therein, and it has the diameter that axially outwards separates from described axle external diameter; And
The upstanding wall of described mounting sleeve, described upstanding wall have when described mounting sleeve is in initial position and the front surface of plate adjacency behind the described seal ring.
3. lip shape sealed cylinder as claimed in claim 1, wherein, described mounting sleeve comprises step register, the inner corner portion of described step register between annular block piece and mounting sleeve upstanding wall, when described mounting sleeve was in its initial position, the back plate of described step register and described seal ring is place, heart hole adjacency therein.
4. lip shape sealed cylinder as claimed in claim 1, the annular block piece of wherein said mounting sleeve is made by hard plastic material.
5. lip shape sealed cylinder as claimed in claim 1, also comprise roughly plunger spare, described plunger spare has frustum of a cone guiding surface, constant diameter intermediate surface and the diameter back cylindrical part littler than described intermediate surface, described roughly plunger spare is received in the described lip shape sealed cylinder, wherein the back cylindrical part is positioned at the annular block piece of described mounting sleeve with one heart, and described intermediate surface and butt surface guiding surface are positioned at the front end front of described annular block piece.
6. lip shape sealed cylinder as claimed in claim 1 also comprises:
The second lip shape Sealing, the described second lip shape Sealing radially inwardly pushes towards described axle, and cooperates with described axle selectively; And
The mounting sleeve of axially aligning with described seal ring, described mounting sleeve comprises annular block piece, when described mounting sleeve is in initial position, described block piece separates at least one described lip shape Sealing or the described second lip shape Sealing and described axle, described lip shape sealing expansion sleeve pipe can leave described initial position along described axle and axially move, so described annular block piece stops a plurality of described lip shape Sealings and described axle are separated, thereby described lip shape Sealing is cooperated with described axle;
Wherein said mounting sleeve has annular block piece, described annular block piece is between described axle and the described lip shape Sealing and the second lip shape Sealing, the annular block piece of described mounting sleeve also launches between the sleeve pipe at described axle and the sealing of described lip shape, described mounting sleeve can axially shift out from described lip shape sealed cylinder, so described axle cooperates with the described lip shape Sealing or the second lip shape Sealing, wherein said lip shape Sealing does not launch sleeve pipe by described lip shape sealing at first and described axle separates.
7. one kind is used for lip shape sealed cylinder that the zone between axle and the surrounding structure is sealed, comprising:
Seal ring with front-end and back-end, described seal ring encase a plurality of lip shape Sealings annularly, and each lip shape Sealing is towards the inwardly pushing radially of described axle, and at least one selectively cooperates with described axle in described a plurality of lip shape Sealings; And
Launch sleeve pipe with the lip shape sealing that described seal ring axially aligns, described lip shape sealing launches sleeve pipe and comprises annular block piece, when described lip shape sealing expansion sleeve pipe is in initial position, described block piece separates at least one and described axle in described a plurality of lip shape Sealings, described lip shape sealing expansion sleeve pipe can leave described initial position along described axle and axially move, thereby described annular block piece stop in described a plurality of lip shape Sealings one separate with described axle, described lip shape Sealing is cooperated with described.
8. lip shape sealed cylinder as claimed in claim 7 also comprises:
The footpath of seal ring is plate backward, and described back plate has center hole therein, and it has the diameter that axially outwards separates from described axle external diameter; And
The sealing of described lip shape launches the upstanding wall of sleeve pipe, when described lip shape sealing launches sleeve pipe when being in initial position, described upstanding wall have with described seal ring after the front of plate adjacency.
9. lip shape sealed cylinder as claimed in claim 7 also comprises:
Mounting sleeve, it comprises the annular block piece between axle and all a plurality of lip shape Sealings, wherein said Sealing comprises the Sealing that initially separates by described lip shape sealing expansion sleeve pipe and described axle, and the annular block piece of described mounting sleeve also launches between the annular block piece of sleeve pipe at described axle and the sealing of described lip shape; And
The mounting sleeve that can axially shift out from the described lip shape sealed cylinder is not so described axle can initially launch sleeve pipe by described lip shape sealing and do not cooperate with the described described a plurality of lip shape Sealings that separate with any.
10. lip shape sealed cylinder as claimed in claim 9 also comprises:
The footpath of seal ring is plate backward, and described back plate has center hole therein, and it has the diameter that axially outwards separates from described axle external diameter; And
The sealing of described lip shape launches the upstanding wall of sleeve pipe, when described lip shape sealing launches sleeve pipe when being in initial position, described upstanding wall have with described seal ring after the front of plate adjacency;
Wherein, described mounting sleeve comprises upright end wall, and before described mounting sleeve was axially removed, described upright end wall and the sealing of described lip shape launched the upstanding wall adjacency of sleeve pipe.
11. lip shape sealed cylinder as claimed in claim 9, at least one is made of hard plastic material in the annular block piece of wherein said lip shape sealing expansion sleeve pipe and the annular block piece of described mounting sleeve.
12. as the lip shape sealed cylinder of claim 11, wherein said hard plastic material comprises acrylic acid.
13. lip shape sealed cylinder as claimed in claim 8, also comprise the ring-shaped sealing element that is fixed on the described lip shape sealing expansion sleeve pipe upstanding wall rear surface, described ring-shaped sealing element comprises the flexible lip that cooperates with described axle external diameter, enters in the described lip shape sealed cylinder to stop atmospheric pollutant.
14. the lip shape sealed cylinder as claim 13 also comprises:
Mounting sleeve, described mounting sleeve comprises the annular block piece between axle and all a plurality of lip shape Sealings, wherein said Sealing comprises the Sealing that initially separates by described lip shape sealing expansion sleeve pipe and described axle, the annular block piece of described mounting sleeve also launches between the annular block piece of sleeve pipe at described axle and the sealing of described lip shape, and at described axle be fixed to described lip shape sealing and launch between the annular seal element on the upstanding wall rear surface of sleeve pipe;
Described mounting sleeve also comprises upright end wall, and before described mounting sleeve was axially removed, described upright end wall and the sealing of described lip shape launched the upstanding wall adjacency of sleeve pipe;
Described mounting sleeve also is included in the described upright end wall to hold the recess of described ring-shaped sealing element lip; And
The mounting sleeve that can axially shift out from the described lip shape sealed cylinder, described axle can initially not launch sleeve pipe by described lip shape sealing and described ring-shaped sealing element cooperate with the described described a plurality of lip shape Sealings that separate with any.
15. lip shape sealed cylinder as claimed in claim 7, wherein said lip shape sealing launches the step register that sleeve pipe also comprises the interior angle place between annular block piece and lip shape sealing expansion sleeve pipe upstanding wall, when described lip shape sealing expansion sleeve pipe was in its initial position, the back plate of described step register and described seal ring is heart hole adjacency therein.
16. lip shape sealed cylinder as claimed in claim 7, also comprise the substantial cylindrical plug, described cylindrical plugs has the intermediate surface and the diameter back cylindrical part littler than described intermediate surface of frustum of a cone guiding surface, constant diameter, described substantial cylindrical plug is received in the described lip shape sealed cylinder, described back cylindrical part is positioned at the annular block piece that described lip shape sealing launches sleeve pipe with one heart, and described intermediate surface and frusto-conical surface are positioned at the front of described annular block piece front end.
17. one kind is used for lip shape sealed cylinder that the zone between axle and the surrounding structure is sealed, comprises:
Seal ring with front-end and back-end, described seal ring encase a plurality of lip shape Sealings annularly, each lip shape Sealing towards described axially in pushing, at least one selectively cooperates with described in described a plurality of lip shape Sealings;
Launch sleeve pipe with the lip shape sealing that described seal ring axially aligns, described lip shape sealing launches sleeve pipe and comprises annular block piece, when described lip shape sealing expansion sleeve pipe is in initial position, described block piece separates at least one and described axle in described a plurality of lip shape Sealings, described lip shape sealing expansion sleeve pipe can leave described initial position along described axle and axially move, so described annular block piece stop in described a plurality of lip shape Sealings one separate with described axle, thereby described lip shape Sealing is cooperated with described;
Mounting sleeve, it has the annular block piece between described axle and all a plurality of lip shape Sealings, wherein said Sealing has the Sealing that initially separates by described lip shape sealing expansion sleeve pipe and described axle, and the annular block piece of described mounting sleeve also launches between the annular block piece of sleeve pipe at described axle and the sealing of described lip shape; And
The mounting sleeve that can axially shift out from the described lip shape sealed cylinder is not so described axle initially launches sleeve pipe by described lip shape sealing and do not cooperate with the described described a plurality of lip shape Sealings that separate with any.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US36416302P | 2002-03-13 | 2002-03-13 | |
| US60/364,163 | 2002-03-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1653285A true CN1653285A (en) | 2005-08-10 |
| CN100363655C CN100363655C (en) | 2008-01-23 |
Family
ID=27805303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038107627A Expired - Fee Related CN100363655C (en) | 2002-03-13 | 2003-03-12 | Installation and deployment sleeves for lip seals |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN100363655C (en) |
| AU (1) | AU2003212555A1 (en) |
| WO (1) | WO2003076835A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102272496A (en) * | 2009-06-22 | 2011-12-07 | 爱罗丁工程有限公司 | Sealing arrangement for a shaft |
| CN105351526A (en) * | 2015-10-30 | 2016-02-24 | 无锡市新颖密封材料厂 | Anti-rust sealing part |
| CN105598909A (en) * | 2014-11-13 | 2016-05-25 | 卡尔·弗罗伊登伯格公司 | Mounting device for a sealing ring |
| CN110778722A (en) * | 2018-10-01 | 2020-02-11 | 卡尔科德宝两合公司 | Sealing element |
| CN115217975A (en) * | 2022-07-22 | 2022-10-21 | 西安近代化学研究所 | Sealing device for converting axial force into radial extrusion fitting force |
| JP7385624B2 (en) | 2021-06-09 | 2023-11-22 | 三菱電線工業株式会社 | Shaft seal packaging sleeve |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202010017196U1 (en) * | 2010-11-03 | 2011-04-21 | Carl Freudenberg Kg | sealing arrangement |
| FR2967201B1 (en) * | 2011-11-09 | 2015-04-03 | Poclain Hydraulics Ind | DYNAMIC SEAL MOUNTING FOR HYDRAULIC ROTATING MACHINE |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2836441A (en) | 1953-09-28 | 1958-05-27 | Jabsco Pump Co | Shaft seal with take-up for wear |
| US3642290A (en) * | 1970-02-05 | 1972-02-15 | Parker Hannifin Corp | Composite rod wiper |
| PL76196B1 (en) * | 1970-06-10 | 1975-02-28 | ||
| GB2199381A (en) | 1986-12-23 | 1988-07-06 | Ford Motor Co | Seal installation |
| DE3815655C2 (en) * | 1988-05-07 | 1994-04-14 | Blohm Voss Ag | Sealing for rotating shafts, especially stern tube sealing |
| GB9205659D0 (en) * | 1992-03-14 | 1992-04-29 | Mccoy Ronald G | Shaft seal |
| CN2191780Y (en) * | 1994-06-03 | 1995-03-15 | 金铭新 | Bidirectional positioning full sealing semi-plastic multiball middle axle assembly |
| FR2742837B1 (en) | 1995-12-21 | 1998-02-20 | Eurocopter France | SEALING DEVICE FOR A ROTATING SHAFT |
| ATE300002T1 (en) * | 2000-04-13 | 2005-08-15 | Ashbridge & Roseburgh Inc | SEALING DEVICE WITH SEQUENTIALLY ACTUATED SEALS |
-
2003
- 2003-03-12 CN CNB038107627A patent/CN100363655C/en not_active Expired - Fee Related
- 2003-03-12 WO PCT/IB2003/000900 patent/WO2003076835A1/en not_active Application Discontinuation
- 2003-03-12 AU AU2003212555A patent/AU2003212555A1/en not_active Abandoned
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102272496A (en) * | 2009-06-22 | 2011-12-07 | 爱罗丁工程有限公司 | Sealing arrangement for a shaft |
| CN102272496B (en) * | 2009-06-22 | 2014-03-26 | 爱罗丁工程有限公司 | Sealing arrangement for a shaft |
| CN105598909A (en) * | 2014-11-13 | 2016-05-25 | 卡尔·弗罗伊登伯格公司 | Mounting device for a sealing ring |
| CN105351526A (en) * | 2015-10-30 | 2016-02-24 | 无锡市新颖密封材料厂 | Anti-rust sealing part |
| CN110778722A (en) * | 2018-10-01 | 2020-02-11 | 卡尔科德宝两合公司 | Sealing element |
| JP7385624B2 (en) | 2021-06-09 | 2023-11-22 | 三菱電線工業株式会社 | Shaft seal packaging sleeve |
| CN115217975A (en) * | 2022-07-22 | 2022-10-21 | 西安近代化学研究所 | Sealing device for converting axial force into radial extrusion fitting force |
| CN115217975B (en) * | 2022-07-22 | 2024-05-10 | 西安近代化学研究所 | Sealing device for converting axial force into radial extrusion bonding force |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2003212555A1 (en) | 2003-09-22 |
| CN100363655C (en) | 2008-01-23 |
| WO2003076835A1 (en) | 2003-09-18 |
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Granted publication date: 20080123 Termination date: 20140312 |