WO2010092045A1 - Gehäusegleitlagerisolierung - Google Patents
Gehäusegleitlagerisolierung Download PDFInfo
- Publication number
- WO2010092045A1 WO2010092045A1 PCT/EP2010/051573 EP2010051573W WO2010092045A1 WO 2010092045 A1 WO2010092045 A1 WO 2010092045A1 EP 2010051573 W EP2010051573 W EP 2010051573W WO 2010092045 A1 WO2010092045 A1 WO 2010092045A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bearing
- housing
- bearing housing
- insert
- shaft
- Prior art date
Links
Classifications
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/02—Rigid support of bearing units; Housings, e.g. caps, covers in the case of sliding-contact bearings
Definitions
- the invention relates to a shaft bearing, a housing for a shaft bearing and a method for producing a housing of a shaft bearing.
- a shaft bearing With the shaft bearing, a shaft rotating about a rotation axis is rotatable.
- the shaft bearing is a housing slide bearing, but in principle could also be a housing roller bearing.
- Housing sliding bearings are known from the prior art, which have a housing with integrally attached wings, and a bearing body which is supported with support surfaces on the wings.
- a shaft to be supported On the bearing body a shaft to be supported is rotatably mounted about a rotation axis.
- shaft bearings it is often necessary that the longitudinal axis of the shaft bearing bore is exactly aligned with the axis of rotation of the shaft. This can be remedied by the fact that during assembly, the longitudinal axis of the bore of the bearing body is aligned exactly with the axis of rotation of the shaft to be supported. This alignment is usually not easy. Dynamic changes in the shape of the shaft can sometimes not be compensated. Therefore, there are bearings whose housing are aligned only roughly during assembly with the axis of rotation of the shaft.
- Support surfaces of the housing for the bearing body and support surfaces of the bearing body have mutually adapted spherical surfaces, which allow the bearing body to perform tilting movements transversely to the axis of rotation of the shaft relative to the bearing housing in a certain angular range.
- the shaft bearing is subject to less wear due to dynamic deformation of the shaft to be supported and is easier to install.
- Such bearings may be provided, for example, in electrical machines, the z. B. are attached to both sides of a housing of the electric machine, so that the electric machine is disposed between the bearings.
- the electric machine can z. B. be a motor or a generator.
- the electrical fields in the machine can cause a voltage be induced in the shaft to be stored. Although this voltage is dissipated via a grounding device, it is often undesirable for the voltage to be dissipated through the shaft bearings. Therefore, it may be necessary to provide at least one or both bearings with electrical insulation, which prevents current from the shaft z. B. over the housing of the electric machine to which the bearing is mounted, runs. It is known to apply an electrically insulating layer to the wings integrally formed on the housing.
- the application of the electrically insulating layer is part of the manufacturing process during the housing production. Since the coating process is not in the process of machining the
- Bearing housing can be integrated, it may be necessary that the bearing housing is removed from the machining process and transported to another place where the coating takes place. After the coating has been completed, the housing can be replaced again
- Cutting process be returned.
- the coating process thus costs time and money, partly because of the often very large housings high transport costs incurred.
- the invention is based on a bearing housing for a shaft bearing, in particular a housing slide bearing.
- the bearing housing for a shaft bearing of the type mentioned preferably for a plain bearing according to DIN 31 690, 31 693 or 31 694 act.
- a flange may be provided, with which the bearing can be fastened at a desired location.
- the bearing housing can be designed as a flange bearing, midi pop or pillow block.
- the bearing or the bearing housing can, for. B. be fastened to an electric machine to rotatably support their rotation shaft.
- the bearing housing comprises at least two support surfaces for a bearing body which are arranged at least partially around the axis of rotation of the shaft to be supported and separate from one another in the direction of the axis of rotation, wherein the bearing surfaces have the shape of a part of a spherical surface.
- the bearing body is used in the bearing housing, the support surfaces, with which it is supported on the wings.
- the support surfaces also have the shape of a part of a spherical surface.
- the spherical surfaces of the support surfaces and the spherical surfaces of the wings are adapted to each other so that they lie flat against each other.
- the wings can a common ball center lyak and the support surfaces have a common spherical center.
- the support surfaces and the wings have the same sphere center.
- the bearing body can pivot about at least one axis which is transverse to the axis of rotation of the shaft relative to the bearing housing.
- the at least one axis is preferably a straight-line tuft that is transverse to the axis of rotation, so that the bearing body can compensate for the angular offsets of the rotational axis caused during assembly or dynamic excitation.
- the bearing body slides for this purpose on the wings.
- a rotation of the bearing body about the axis of rotation of the shaft is blocked relative to the housing.
- the bearing housing a corresponding means, such as. B. a Abragung or a pin which engages in a recess of the bearing body, have, or vice versa.
- the at least partially circumferentially arranged wings are preferably arranged so that the bearing body or the ball center of the support surfaces is secured transversely to the axis of rotation of the shaft against movement.
- a plurality of circumferentially separate wings may be formed, which are separated from each other by a plurality of circumferentially separate wings in the direction of the axis of rotation.
- two in the direction of the axis of rotation separated from each other approximately annularly formed around the axis of rotation wings are formed. Even if the wings are not complete, such. B. with interruptions extend over the circumference of the axis of rotation to be understood as annular.
- the wings separated in the direction of the axis of rotation and / or in the circumferential direction can be separated by means of a gap.
- the at least one ball center is located with respect to the axis of rotation axially in the region of the gap which separates the bearing surfaces in the direction of the axis of rotation.
- the bearing body has at least two about the axis of rotation of the shaft to be supported at least partially, preferably completely circumferentially arranged and in the direction of the axis of rotation separate support surfaces for the wings.
- the bearing body preferably comprises two bearing shells which, when joined together, mount the shaft to be supported on their circumference. Due to the split bearing shells, the bearing body can be easily attached to the shaft.
- the storage means may, for. B. a rolling bearing, such. As a ball or cylindrical roller bearing, or preferably be a plain bearing.
- the plain bearing can be a suitable bearing material, such. As bronze or white metal or other known from the prior art bearing material.
- the bearing material is preferably attached by centrifugal casting to the bearing body.
- On the bearing means lubrication pockets may be provided with which the shaft to be supported is hydrodynamically storable.
- the invention generally assumes that an electrically insulating layer is arranged between the bearing body and the bearing housing, by means of which the shaft and the shaft
- Bearing housings to each other are electrically isolated or insulated.
- the electrically insulating layer prevents currents from flowing through the shaft bearing, resulting in uncontrolled current discharges from the shaft or even damage to the shaft
- the electrically insulating layer preferably comprises or consists of an organic compound, in particular a plastic, such as. As a thermoplastic or thermosetting plastic.
- the thermoplastic material is preferably a fluoroplastic, such as. Example, a copolymer of ethylene and polychlorotrifluoroethylene (ECTFE), which is also known as HALAR ® , polychlorotrifluoroethylene (PCTFE) or polytetrafluoroethylene (PTFE), which is also known Teflon ® .
- ECTFE polychlorotrifluoroethylene
- PCTFE polychlorotrifluoroethylene
- PTFE polytetrafluoroethylene
- Teflon ® Teflon ®
- thermosetting plastics can be used as coatings such as thermoplastic materials are used, but are preferably also suitable as an adhesive.
- Thermosetting plastics can, for. B. based on a polymer resin, such as. As acrylic or methacrylic resins, which is crosslinked by means of a suitable additive or is.
- the bearing housing preferably comprises an upper part and a lower part, each having at least two around the axis of rotation of the shaft to be supported at least partially circumferentially and in the direction of the axis of rotation separate wings for the bearing body.
- Upper part and lower part are preferably separated in a plane extending approximately through the axis of rotation. This makes it possible to arrange the bearing around an existing shaft.
- Upper part and lower part are preferably screwed together, so that the bearing body is bordered by the wings.
- upper and lower part of the bearing body may have a very small clearance to the wings, so that the bearing body about the at least one transverse axis to the axis of rotation is tilted, or be clamped by the wings, so that the bearing body only during assembly but not during operation about the at least one transverse axis to the axis of rotation is tiltable.
- the invention is based on the fact that the bearing surfaces are formed by at least one, self-supporting insert inserted into the bearing housing, which is materially connected to an electrically insulating layer, by means of which
- the insert is a separate part of the housing base body, which is connected to the housing base body and thus belongs to the bearing housing.
- the insert is "self-supporting" which means that its stability is so great that it does not collapse or deform unless it is held up outside the plain bearing only at a point location or when placed in any position on a surface or is placed.
- the rigidity of the insert is so high that it can not be deformed by its own weight. However, the layer may not necessarily be counted for use.
- the insert may comprise a body providing self-supporting stability.
- the main body can z. B. of a metal, such as. As steel or a
- Cast material to be manufactured.
- a suitable casting material is z.
- Nodular cast iron GGG 40 from which also the bearing housing or the main body of the bearing housing or the bearing body can be made.
- the upper part and the lower part of the housing each have at least two of the separate from each other in the direction of the axis of rotation inserts which form the wings.
- the at least one insert is a ring section.
- the inserts can be semi-annular, wherein two set in the circumferential direction
- Half rings form a whole ring.
- the at least one insert in particular ring section, may have end faces pointing in the circumferential direction.
- the end faces of a ring portion of the upper part of the bearing housing can be arranged opposite the end faces of an insert of the lower part of the housing.
- the electrically insulating layer may be widened in the region of the circumferential end face with respect to the layer thickness of the major part of the layer, in particular in the radial direction with respect to the axis of rotation. This broadening can ensure that no unwanted electrically conductive connection between the bearing housing and the shaft or the bearing body is caused at the end of the circumferentially extending layer.
- the broadening can z.
- Example be generated by the fact that the transition of the support surface to the end face with a chamfer, ie a bevelled surface, is provided, which is coated with the electrically conductive layer, such. B. with the same, a larger or smaller layer thickness as in the area of the wings.
- the main body of the insert can have the chamfer at the transition from the surface on which the layer is arranged to the end face.
- the chamfer can z. B. be milled at an angle of 45 ° and have a leg length of 0.5 to 3 mm, the chamfer is preferably much stronger than a deburred edge.
- a small step or step may be provided, which may also be coated or filled with the layer.
- the broadening ie, the chamfer or step
- the broadening can be formed on the side of the support surface of the insert or on the side facing the seat of the housing for use on the insert.
- the broadening can also be arranged on the one or more surfaces of the seat facing or facing the insert.
- the channel is formed where the top is placed on the base, d. H.
- the upper and lower parts abut each other.
- the channel cross-section is closed.
- the channel can z. B. along the surfaces for the seat of the insert.
- the channel may connect the region of the gap which separates the wings in the direction of the axis of rotation with the side of the interior of the housing which lies on the side of the at least one insert opposite the gap.
- the channel is flushed during operation of the shaft bearing of an oil, which is provided in particular for the heat dissipation from the bearing housing or the at least one insert.
- the at least one insert has at its end faces pointing in the circumferential direction at least one fastening means by means of which a clamping force acting in the circumferential direction of the insert or ring section can be exerted on the ring section.
- the fastening means is preferably a screw, the screw head is supported on the insert and engages the thread in a thread of the bearing housing.
- a recess is arranged, in which the screw head is recessed, preferably so far that it does not stand over the end face.
- the screw head provided that it protrudes beyond the end face and leads to problems in the assembly of the bearing housing, be milled.
- the screw can be arranged so that it exerts force components in the region of the contact, in particular the underside of the screw head, with the insert, in particular with the base of the recess, both in the radial direction and in the circumferential direction on the insert.
- the screw can be arranged both transversely to the radial and transversely to the tangential of the circumferential direction of the insert.
- the intended for use seat of the bearing housing may preferably have at an acute angle to each other arranged seating surfaces against which the at least one insert by means of the at least one fastening means can be tensioned.
- a seat can be provided for a stop in the direction of the axis of rotation, which is preferably approximately perpendicular to the axis of rotation.
- the other seat can z. B. at an angle of less than 90 ° to the acting in the direction of the axis of rotation seat surface.
- the pointing to the rotation axis of the seat is preferably in relation to the axis of rotation easily, ie at an angle of 1 ° to 20 °, preferably ⁇ 10 ° such. B. 5 ° or 6 °, inclined.
- the seat can be prepared, for example, with a form milling cutter on a machine tool, in particular as mentioned above.
- the prepared for the seat insert which is relatively easy to transport the weight and its volume is coated at a suitable location with a layer, preferably based on a fluoroplastic, in particular with an excess in the layer thickness.
- the insert whose spherical surface and, for example, its chamfer are coated, is inserted into the seat of the bearing housing and there by means of z. B. attached two fasteners. Incidentally, the insert does not need to be coated. It is advantageous that the insertion of the insert into the bearing housing can take place in the same clamping of the bearing housing in the machine tool, in which the seat has been prepared for use.
- the bearing housing does not need to be newly clamped and no new reference points for the machine control on the bearing housing must be measured.
- a suitable milling cutter such as a ball mill or other form of milling cutter
- the machine tool layer are machined or material-lifting, so that a precisely positioned spherical surface is formed as a support surface for the bearing body.
- all inserts are inserted into the upper part or the lower part and finished in a common clamping. For example, the equipped with the inserts upper and Bottom parts are clamped together and finished together with a form cutter and the machine tool.
- the at least one insert is glued into a seat of the bearing housing with a suitable adhesive, whereby the electrically insulating layer is formed.
- suitable adhesives have already been mentioned, in particular it may be an electrically insulating two-component adhesive, such as. B. methacrylic resin act.
- the electrically insulating layer is then arranged between insert and bearing housing.
- the formed for the at least one use seat of the bearing housing includes angled, z. B. at right angles to each other arranged seating surfaces, of which a seat transversely, in particular perpendicular to the axis of rotation and the other seat facing the axis of rotation. Basically, the seats could be acute or obtuse angle to each other.
- the surfaces of the seat or the adhesive surfaces of the seat may have a urgeformte surface, in particular a casting surface or have a surface that is machined.
- a glued insert is that the seat does not necessarily have to be prepared on a machine tool before gluing.
- the corresponding adhesive surfaces of the insert so that the use of a urgeformte surface, such. B. may have a cast surface. If, due to the casting process of the bearing housing or the insert, a material-removing surface treatment is nevertheless required on an insert or bearing housing, this is preferably carried out on the bearing housing, but can in principle also be carried out on the insert.
- At least one spacer made of an electrically insulating material between the seat and the insert. This creates a gap between the seat and the insert.
- the gap may be filled with the electrically insulating layer.
- the at least one spacer may be at least partially, preferably completely surrounded by the electrically insulating layer.
- At least one is optionally provided from the seat of the bearing housing for use and for the seat Surface of the insert pretreated material, such.
- the at least one insert is inserted into its seat, wherein at least one spacer is inserted between the adhesive surfaces of the seat and the insert.
- the resulting gap if it is not sufficient for insulation, be filled with the electrically insulating material.
- the widening in the area of the end faces of the insert is also filled.
- the surfaces for the spherical surfaces of the inserts in a machine tool are machined, in particular machined.
- the spherical surfaces of the inserts have a metallic surface. This reduces the risk that a coated spherical surface will be damaged during the assembly process of the bearing.
- the insulating layer between bearing housing and insert is protected against damage.
- the bearing body has an at least partially, preferably completely circumferentially around the axis of rotation of the shaft arranged recess in which the electrically insulating layer is arranged, wherein the layer forms the support surface for a support surface.
- This depression can z.
- a groove or a step which preferably extends annularly around the circumference of the bearing body.
- the depth of the recess is about 0.5 to 1 mm.
- the depression is then filled with an insulating layer with an oversize.
- the surface of the coating intended for the support surface is machined away, in particular turned off with a turning tool, in particular to the desired extent of the layer thickness. After this processing, the surface has the spherical surface shape to form the support surface.
- the layer may be arranged in the recess such that the support surface is flush with the upper edge of the recess or disposed below the upper edge of the recess.
- the bearing body comprises at least two about the axis of rotation of the shaft to be supported at least partially, circumferentially arranged and in the direction of the axis of rotation separate support surfaces for the wings.
- the manufacturing methods for a bearing housing mentioned herein may, for. B. starting from the following steps: a) providing a bearing housing, b) cohesive coating with an electrically insulating layer and inserting a self-supporting insert in the bearing housing to form a support surface for a bearing body, c) material removing machining the support surface of the insert used the
- FIG. 2 shows a lower part of a bearing housing according to the invention without inserts
- FIG 3 shows the bearing housing of Figure 2 belonging inserts in several
- FIG. 4 shows the bearing housing from FIG. 2 with glued inserts
- FIG. 5 a the representation of a shaft bearing with glued inserts in
- FIG. 5b shows a detail from FIG. 5a
- FIG. 8 shows the bearing housing from FIG. 6 with inserts inserted
- FIG. 9 shows the bearing housing from FIG. 6 with inserted inserts in full section, FIG.
- FIG. 10 shows the bearing housing from FIG. 8 in full section
- FIG. 11 shows a bearing body according to the invention.
- FIG. 1 shows a housing slide bearing which supports a shaft 2.
- the housing bearing comprises a bearing housing Ia, Ib, which has an upper part Ia and a lower part Ib, which are releasably connected to each other by means of a screw connection and which are separated in a plane extending approximately through the axis of rotation R of the shaft 2 plane.
- the bearing housing Ia, Ib also has a cover 16 which surrounds the shaft 2 and is screwed to the upper and lower parts Ia, Ib.
- each have shaft seals 17 are used, which seal the interior of the bearing housing Ia, Ib from the environment, as in the interior of the bearing housing Ia, Ib oil is on the one hand for lubrication and on the other hand for heat dissipation serves.
- oil commercial mineral oils having a low foaming tendency and good aging resistance can be used.
- the bearing housing Ia, Ib may have cooling fins for heat dissipation. Furthermore, the bearing housing Ia, Ib may be made of ductile iron GGG 40. On the bearing housing Ia, Ib connecting thread for the temperature and oil level monitoring and drain and oil supply can be formed. Further, the bearing housing Ia, Ib may comprise means for receiving an oil cooler and vibration meter.
- the bearing housing Ia, Ib has at least two about the axis of rotation R of the shaft 2 to be supported at least partially circumferentially and in the direction of the rotation axis R from each other by means of a gap 12 separate wings 3.
- a bearing body 4 In the bearing housing Ia, Ib is a bearing body 4, which is supported by means of its support surfaces 14 on the wings 3.
- the gap 12 is a recess which is preferably so wide that from the outside radially to the rotation axis R, a filling hole for oil in the housing Ia, Ib, in particular the housing upper part Ia can be introduced.
- the wings 3 and the support surfaces 14 each have the shape of a part of a spherical surface and are arranged around a common spherical center M.
- the support surfaces 14 slide on the wings 3 and are in surface contact with each other. Due to the design of the wings 3 and the support surfaces 14, the bearing body 4 about a perpendicular to the rotation axis R standing and through the center point M. running straight tufts are pivoted. In other words, the bearing body 4 can perform a tumbling motion about the midpoint M. This is necessary to change in the angular position of the axis of rotation R, as z. B. can be caused by dynamic deformation of the shaft 2, to compensate, whereby the life of the bearing is significantly increased.
- an electrically insulating layer 6 is arranged between the bearing body 4 and the bearing housing 1a, 1b, by means of which the shaft 2 and the bearing housing 1a, 1b are electrically insulated from one another.
- the electrically insulating layer 6 may be cohesively attached to the support surface 3 or to the support surface 14 or both.
- the electrically insulating layer 6 preferably comprises a material mentioned herein or another suitable material.
- the bearing body 4 is preferably formed of a metallic material and / or comprises two bearing shells 4a, 4b, which are releasably screwed together and separated in a plane extending approximately through the axis of rotation R level. As a result, the bearing body 4 can be arranged at the desired location of the shaft 2.
- the bearing body 4 has a designed as a plain bearing bearing means 18, which is attached to the bearing body 4 layer of a bearing material, such. B. white metal.
- the bearing means 18 has at least one lubricating pocket, which allows a hydrodynamic bearing of the shaft 2.
- the bearing body 4 is secured against rotation about the axis of rotation R with a means 7 relative to the bearing housing 1a, 1b, the means permitting the tumbling motion of the bearing body 4.
- Figure 11 shows a modified bearing body 4, which may be constructed except for the modification as the bearing body of Figure 1.
- the depressions 15 are separated from one another in the direction of the axis of rotation R.
- the depressions 15 can be produced on a machine tool, in particular a lathe, by turning off.
- the bottom of the recesses 15 may have the shape of a part of a spherical surface around the center M, thereby later achieving a uniform layer thickness of the insulating layer 6.
- the electrically insulating material is or is introduced, in particular with an excess for the layer thickness. Subsequently, the electrically insulating material is material removing, in particular processed again with the lathe, whereby the spherical surface-shaped support surface 14 is formed and the desired
- Layer thickness the z. B. 0.3 to 1 mm is achieved.
- the thickness of the layer 6 can be adjusted so that the support surface 14 flush with the upper edge of the stepped
- Deepening 15 closes or slightly below the upper edge of the recess 15 is located.
- the electrically insulating layer 6 it is preferable for the electrically insulating layer 6 to have a material-removing surface, that is, a material-removing surface.
- H. Support surface 14 has.
- the bearing surfaces 3 are formed by at least one self-supporting insert 5 inserted in the bearing housing 1a, 1b, which is firmly bonded to an electrically insulating layer 6, by means of which the shaft 2 and the Bearing housing Ia, Ib are electrically insulated from each other. Also for these embodiments, the description of Figure 1 is supplementary.
- inserts 5 are materially connected to the housing Ia, Ib, in particular glued.
- the inserts 5 are non-positively and / or positively connected to the housing 1a, 1b, in particular by fastening means 8 designed as screws.
- FIG. 2 shows a housing bottom part Ib which has two seats 9, each separated from one another in the direction of the axis of rotation, for one insert 5 each.
- Each seat 9 has a peripheral seat surface 9a facing the rotation axis R and an axial seat surface 9b approximately perpendicular to the circumferential seat surface 9a and perpendicular to the rotation axis R.
- These seats 9a, 9b serve as adhesive surfaces.
- the seats 9 a, 9 b may have a Gussober Structure have, which is produced during prototyping, in particular casting of the housing Ia, Ib.
- the seats 9a, 9b by material removal machining, such. B. by milling on the housing Ia, Ib are formed.
- FIG 3 three views of an insert 5 are shown, which is inserted into the seat 9.
- the insert 5 has circumferentially facing end faces 5 a, a peripheral surface 5 d for the peripheral seat surface 9 a and an approximately perpendicular to the peripheral surface 5 d standing end face 5 c for the Axialitz Structure 9 b.
- the insert 5 may have a surface provided for the contact surface 3, wherein the surface z. B. may be provided with an allowance, which is removed in a later processing step, whereby the support surface 3 is formed.
- the support surface 3 can already be finished before the insertion of the insert 5.
- the area provided for the support surface 3 may have a metallic surface, which is preferred or have an electrically insulating layer. If the area provided for the support surface 3 is still being processed after insertion, it does not necessarily have to have a spherical shape.
- spacers made of an electrically insulating material are arranged on the surface 5 c and / or on the surface 5 d, so that a distance corresponding to the thickness of the spacers between the surfaces 5 d and 9 a or 5 c and 9 b, when the insert 5 in the seat 9 is inserted.
- the resulting gap by this gap is filled by means of a flow capable, electrically non-conductive adhesive, so that the spacers are at least partially surrounded or embedded by the adhesive. This results in the electrically insulating layer 6 between the surfaces 5c and 9b or 5d and 9a.
- the gluing of the inserts 5 can be done outside of the clamping in a machine tool, the surfaces for the wings 3 finished or carried out in a clamped state in this machine, especially if the surfaces 9 a and 9 b of the seat 9 were machined, this Work step can also take place in the same setting.
- the surfaces for the wings 3 are finished, ie processed material removal, so that the wings 3 arise, which have the shape of a spherical surface around the center M.
- the transitions of the surfaces 5 d and 5 c to the end surface 5 a have chamfers 5 b, which are coated by the layer 6. This prevents an electrically conductive bridge between the inserts 5 and the housing 1a, 1b.
- a channel 11 is formed on at least one of the upper and lower housing part Ia, Ib, which is open to the other from the upper and lower housing part Ia, Ib, so that a channel 11 closed in cross section is formed.
- the channel 11 opens from the gap 12 and in the arranged on the other side of the insert 5 region 13.
- the channel 11 is used for lubricant feedthrough, in particular for heat dissipation.
- the channel 11, alternatively or in addition to the chamfer 5b, may be filled with the insulating material of the layer 6 to prevent an electrically conductive bridge between the inserts 5 and the housing 1a, 1b.
- FIG. 6 an alternative housing part Ia, Ib is shown, on which two axially spaced seats 9 are formed for the inserts 5, wherein the seats 9 were machined material removal in one clamping in a milling machine.
- the axial seating surface 9b is approximately perpendicular to the axis of rotation R.
- the peripheral seating surface 9a is at an acute angle, i. H. an angle smaller than 90 ° with respect to the axial seating surface 9b.
- Peripheral seat surface 9a is inclined at an angle ⁇ to the rotation axis R, wherein the angle ⁇ corresponds to about 5-6 °.
- the peripheral surface 5d of the insert 5 is also inclined relative to the axis of rotation R. Ie. the peripheral surface 5d is at an acute angle to the end face 5 c.
- the circumferentially facing end faces 5a of the insert 5 have recesses 5e with a bottom.
- the recesses 5e are part of a cylinder counterbore for a screw head.
- the bottom of the recess 5e forms a bearing surface for the screw head.
- the threaded holes 9g are aligned so that the screws 8 in the region of Contact in particular the underside of the screw heads with the insert 5 force components in the radial direction as well as in the circumferential direction on the insert 5 exerts when the insert 5 is inserted into the housing Ia, Ib ( Figures 8 and 9).
- This ensures that the insert 5 is firmly pressed against the circumferential seat surface 9a both by the end faces 5a by means of the circumferentially acting force component and in the region of the end faces 5a by means of the force component acting in the radial direction. Due to the inclination with the angle ⁇ of the insert 5 is pressed with its axial end face 5 c against the Axialitz constitutional 9b.
- the insert 5 Before insertion is provided on the surface provided for the support surface 3 of the insert 5 electrically insulating material, such. As a fluoroplastic has been applied with an oversize.
- the insertion of the insert 5 in the housing Ia, Ib is preferably carried out in the clamping of the machine, in which the seats 9a, 9b were incorporated into the housing Ia, Ib.
- the finishing of the provided for the wings 3 surfaces, namely the insulating material to form the spherical surface also takes place. This happens z. B. with a ball or form cutter.
- the support surface 3 has a material-processed surface, which is formed in particular by the insulating material.
- FIG. 10 shows particularly clearly how the insert 5 is pressed by the screws 8 against the seat surfaces 9a and 9b of the seat 9.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009008821.0 | 2009-02-13 | ||
DE102009008821 | 2009-02-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010092045A1 true WO2010092045A1 (de) | 2010-08-19 |
Family
ID=42238235
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/051573 WO2010092045A1 (de) | 2009-02-13 | 2010-02-09 | Gehäusegleitlagerisolierung |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2010092045A1 (de) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3927405A1 (de) * | 1989-08-19 | 1991-02-21 | Renk Ag | Gleitlager |
DE19507516A1 (de) * | 1995-03-03 | 1996-09-05 | Renk Ag | Gleitlager |
US5669717A (en) * | 1996-10-15 | 1997-09-23 | Reliance Electric Industrial Co. | Center flange bearing suitable for use with electrical machinery |
-
2010
- 2010-02-09 WO PCT/EP2010/051573 patent/WO2010092045A1/de active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3927405A1 (de) * | 1989-08-19 | 1991-02-21 | Renk Ag | Gleitlager |
DE19507516A1 (de) * | 1995-03-03 | 1996-09-05 | Renk Ag | Gleitlager |
US5669717A (en) * | 1996-10-15 | 1997-09-23 | Reliance Electric Industrial Co. | Center flange bearing suitable for use with electrical machinery |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102013105171B3 (de) | Vorspannendes Dämpfungssystem | |
DE102007008860B4 (de) | Fluiddynamisches Lager mit Druck erzeugenden Oberflächenstrukturen | |
DE102007024092A1 (de) | Nockenwelle | |
EP3763970B1 (de) | Kugelgewindetrieb, spindelmutter und verfahren zum herstellen einer spindelmutter | |
DE4424670B4 (de) | Hydraulische Kolbenmaschine | |
EP1482604A2 (de) | Schleifringelement und Verfahren zu dessen Herstellung | |
DE20316131U1 (de) | Hydrodynamisches Lagersystem | |
DE4424672A1 (de) | Kolben-Gleitschuh-Anordnung | |
DE102013202342B4 (de) | Verfahren zum Einstellen eines Axialspiels eines in einem Lager gelagerten Zapfens und Vorrichtung umfassend ein Lager und einen in dem Lager gelagerten Zapfen | |
DE102005032631A1 (de) | Fluiddynamisches Lagersystem | |
EP3365573A1 (de) | Gleitlagerbuchse mit integrierter dichtlippe | |
DE102013220507B4 (de) | Vorrichtung und Verfahren zur Erzeugung einer nicht zylindrischen Innenfläche einer Bohrung | |
DE102009043590A1 (de) | Fluiddynamisches Lagersystem geringer Bauhöhe und Spindelmotor mit einem solchen Lagersystem | |
DE102020131018A1 (de) | Wälzlager | |
EP2601423A1 (de) | Lageranordnung und verfahren zur herstellung eines lageraussenrings oder lagerinnenrings mit einer reibungserhöhenden beschichtung | |
EP1717466A2 (de) | Gleitlager mit einem sich erweiternden Lagerspalt im Randbereich | |
DE10238415B4 (de) | Gleitlager für eine Welle eines Abgasturboladers | |
WO2010092045A1 (de) | Gehäusegleitlagerisolierung | |
EP3642499A1 (de) | Verbund-bronzelager | |
WO2014184232A1 (de) | Radialgleitlager | |
DE102013224413A1 (de) | Axiallager mit Schmiermittelzuführung für eine schnelllaufende Welle | |
DE102013224416B4 (de) | Axiallager bestehend aus zwei Axiallagerscheiben zur Lagerung einer Läuferwelle eines Abgasturboladers | |
DE19948891A1 (de) | Gedämpftes Werkzeug | |
DE102019217959A1 (de) | Exzenterachse mit Lagerhülsen und Verfahren zur Herstellung einer Exzenterachse | |
DE102013209199A1 (de) | Kippsegment und Radialgleitlager |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10705323 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 11095137 Country of ref document: CO |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13265739 Country of ref document: US |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 10705323 Country of ref document: EP Kind code of ref document: A1 |