DE10307880A1 - Electric supplementary/external power steering for motor vehicles has a servomotor and a servomotor shaft protruding from a casing and sealed with a radial seal against the casing - Google Patents
Electric supplementary/external power steering for motor vehicles has a servomotor and a servomotor shaft protruding from a casing and sealed with a radial seal against the casing Download PDFInfo
- Publication number
- DE10307880A1 DE10307880A1 DE10307880A DE10307880A DE10307880A1 DE 10307880 A1 DE10307880 A1 DE 10307880A1 DE 10307880 A DE10307880 A DE 10307880A DE 10307880 A DE10307880 A DE 10307880A DE 10307880 A1 DE10307880 A1 DE 10307880A1
- Authority
- DE
- Germany
- Prior art keywords
- radial seal
- housing
- steering system
- servo motor
- peripheral portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000002093 peripheral effect Effects 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 25
- 230000003068 static effect Effects 0.000 description 4
- 241000237858 Gastropoda Species 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0409—Electric motor acting on the steering column
-
- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
-
- 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
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/07—Fixing them on the shaft or housing with interposition of an element
- F16C35/077—Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
- H02K7/1163—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion
- H02K7/1166—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion comprising worm and worm-wheel
-
- 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
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
- F16C2380/27—Motor coupled with a gear, e.g. worm gears
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Power Steering Mechanism (AREA)
Abstract
Description
Die Erfindung betrifft ein Lenksystem, insbesondere eine elektrische Hilfskraft- oder Fremdkraftlenkung für Kraftfahrzeuge, nach dem Oberbegriff des Anspruchs 1.The invention relates to a steering system, in particular an electric power steering or power steering for motor vehicles, according to the preamble of claim 1.
Eine Hilfskraftlenkung für Kraftfahrzeuge
ist in der
Die Servomotorwelle durchragt ein
Gehäuse,
welches die Umgebung oder die getriebliche Verbindung von dem Servomotor
trennt. Die Servomotorwelle wird über ein Gelenklager in dem
Gehäuse
gelagert. An dem Gelenklager kann die Servomotorwelle mit Hilfe
einer Radialdichtung, wie sie in der
Der notwendige Einbauraum solcher Radialdichtungen ist durch aufwändige Arbeitsschritte darzustellen und nicht minimiert und bei der Montage solcher Radialdichtungen und Gelenklager in dem Gehäuse müssen die einzelnen Bauteile justiert und einzeln verpresst werden.The necessary installation space of such Radial seals is elaborate To represent work steps and not minimized and during assembly such radial seals and spherical bearings in the housing must individual components are adjusted and individually pressed.
Der Erfindung liegt die Aufgabe zugrunde, ein Lenksystem der gattungsgemäßen Art so weiterzubilden, dass die Abdichtung des den Servomotor beinhaltenden Gehäuses auf einfache Weise bei kleinstem Einbauraum ermöglicht ist.The invention is based on the object a steering system of the generic type so that the seal of the servomotor included housing is made possible in a simple manner with the smallest installation space.
Die Aufgabe wird mit einem Lenksystem mit den Merkmalen des Anspruchs 1 gelöst.The task is done with a steering system solved with the features of claim 1.
Dadurch, dass die Radialdichtung einen tangential über einen Teilbereich ihres Umfangs reichenden Umfangsabschnitt aufweist, lässt sich die Radialdichtung auf einfache Weise fest an ihrer Umgebung wie einem Gehäuse oder einem Außenring eines Gelenklagers anordnen und so vormontieren, dass die Radialdichtung in ihrer axialen Richtung fest sitzt.Because the radial seal a tangential over has a partial area of its circumferential portion, let yourself like the radial seal in a simple way a housing or an outer ring arrange a spherical plain bearing and pre-assemble so that the radial seal is firmly seated in its axial direction.
Der Umfangsabschnitt der Radialdichtung ist zweckmäßig laschen- oder zungenförmig ausgebildet und ragt vorzugsweise in axialer Richtung aus der Kontur der Radialdichtung heraus. Er ist vorzugsweise einstückig mit der Radialdichtung gebildet. Ohne dass ein aufwändig herzustellender passgenauer Presssitz für die Festlegung der Radialdichtung über deren gesamten Umfang in ihrer Umgebung ausgebildet zu sein braucht, lässt sich die Radialdichtung mit ihrem Umfangsabschnitt formschlüssig über eine Clipverbindung anordnen und vormontieren. Der Umfangsabschnitt der Radialdichtung kann zu diesem Zweck als Rastnase ausgebildet sein und greift zur Festlegung der Radialdichtung in eine Rastöffnung oder Aussparung an dem Bauteil, an dem diese festzulegen ist, ein.The peripheral portion of the radial seal is conveniently or tongue-shaped formed and preferably protrudes from the contour in the axial direction the radial seal. It is preferably in one piece with the radial seal. Without a custom-fit that is laborious to manufacture Press fit for the Define the radial seal via the entire scope of which needs to be trained in their environment, let yourself the radial seal with its peripheral portion via a positive fit Arrange and pre-assemble clip connection. The peripheral section of the Radial seal can be designed as a detent for this purpose and engages in a locking opening or to define the radial seal Recess in the component on which this is to be fixed.
Es kann auch zweckmäßig sein, eine Steckverbindung, eine Schraubverbindung oder eine Nietverbindung zur Festlegung des Umfangsabschnittes der Radialdichtung vorzusehen.It can also be useful a plug connection, a screw connection or a riveted connection To provide the peripheral portion of the radial seal.
Zur Vereinfachung der Montage einer Servomotorwelle in dem Gehäuse ist es zweckmäßig, den Umfangsabschnitt der Radialdichtung an dem Außenring eines Gelenklagers auf die beschriebene Weise festzulegen und das Gelenklager mit der so, ohne spezielle Montagevorrichtungen vormontierten Radialdichtung, in dem Gehäuse festzulegen, was durch Verpressen erfolgen kann.To simplify the assembly of a Servo motor shaft in the housing it is appropriate to Circumferential portion of the radial seal on the outer ring of a spherical plain bearing in the manner described and the spherical bearing with the so, without special assembly devices pre-assembled radial seal, in the housing determine what can be done by pressing.
Eine aufwändige, passgenaue Bearbeitung der Kontaktflächen am Gehäuse oder an dem Gelenklager, welche mit der Radialdichtung in Kontakt kommen, ist nicht erforderlich. Der Einbauraum für eine erfindungsgemäße Radialdichtung ist minimiert. Die Radialdichtung lässt sich mit ihrem statisch abdichtenden Bereich, der in der Art einer Flachdichtung ausgebildet sein kann, zwischen dem Gehäuse und dem Gelenklager für die Servomotorwelle festlegen.A complex, precise processing of the contact areas on the housing or on the spherical plain bearing which is in contact with the radial seal coming is not necessary. The installation space for a radial seal according to the invention is minimized. The radial seal can be static with its sealing area, which is designed in the manner of a flat gasket can be between the housing and the spherical bearing for set the servo motor shaft.
Eine große statische Dichtfläche lässt sich dadurch erreichen, dass die Dichtfläche ringförmig ausgebildet ist und der Umfangsabschnitt zur Montage und Fixierung der Radialdichtung an dem radial äußeren Rand der statischen Dichtfläche angeordnet ist. Zur besseren Zentrierung der Radialdichtung bei der Montage an dem Gehäuse oder dem Außenring des Gelenklagers ist es zweckmäßig, mehrere Umfangsabschnitte mit Abstand, vorzugsweise mit gleichem tangentialen Abstand zueinander an der Radialdichtung anzuordnen.A large static sealing surface can be achieve that the sealing surface is annular and the Circumferential section for mounting and fixing the radial seal the radially outer edge the static sealing surface is arranged. For better centering of the radial seal mounting on the housing or the outer ring of the spherical bearing, it is useful to have several Circumferential sections at a distance, preferably with the same tangential To be spaced from each other on the radial seal.
Zur besseren Handhabung der vorzugsweise aus einem elastomeren Werkstoff gebildeten Radialdichtung ist es zweckmäßig, eine vorzugsweise aus Metall bestehende Versteifungseinlage in jedem Umfangsabschnitt der Radialdichtung anzuordnen. Die Versteifungseinlage kann von Elastomerwerkstoff umspritzt sein und Teil eines Versteifungsringes in der Radialdichtung sein.For better handling the preferably it is made of an elastomeric radial seal expedient, a preferably metal stiffening insert in each Arrange peripheral portion of the radial seal. The stiffening insert can be encapsulated by elastomer material and part of a stiffening ring be in the radial seal.
Der Versteifungsring ist vorzugsweise im Bereich der statischen Dichtfläche der Radialdichtung angeordnet.The stiffening ring is preferred arranged in the area of the static sealing surface of the radial seal.
Ein dynamisch die Servomotorwelle abdichtender Abschnitt der Radialdichtung ist mit einer diesen Dichtungsabschnitt umgreifenden Zugfeder an die Servomotorwelle gepresst. Auf diese Weise ist eine einfache Abdichtung einer Servomotorwelle und eines Gehäuses von einem elektrischen Servomotor bei geringem Bauraumbedarf der Abdichtung bewirkt.A section of the radial seal that dynamically seals the servo motor shaft is pressed against the servo motor shaft with a tension spring encompassing this sealing section. In this way an easy Che sealing a servo motor shaft and a housing of an electric servo motor with little space required for the seal.
Ein Ausführungsbeispiel der Erfindung ist nachfolgend anhand der Zeichnung gezeigt. In der Zeichnung zeigt:An embodiment of the invention is shown below with reference to the drawing. The drawing shows:
In
Um das Gehäuse
Wie die
Die Umfangsabschnitte
Es kann zweckmäßig sein, die Radialdichtung
Mit den Umfangsabschnitten
Die Umfangsabschnitte
Insbesondere wenn eine Clipverbindung
oder Steckverbindung
Wie
Wie in
Eine als Zugfeder
BEZUGSZEICHENLISTE EM 02 cg REFERENCE SIGN LIST EM 02 cg
Claims (17)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10307880A DE10307880A1 (en) | 2003-02-25 | 2003-02-25 | Electric supplementary/external power steering for motor vehicles has a servomotor and a servomotor shaft protruding from a casing and sealed with a radial seal against the casing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10307880A DE10307880A1 (en) | 2003-02-25 | 2003-02-25 | Electric supplementary/external power steering for motor vehicles has a servomotor and a servomotor shaft protruding from a casing and sealed with a radial seal against the casing |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10307880A1 true DE10307880A1 (en) | 2004-09-02 |
Family
ID=32797719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10307880A Withdrawn DE10307880A1 (en) | 2003-02-25 | 2003-02-25 | Electric supplementary/external power steering for motor vehicles has a servomotor and a servomotor shaft protruding from a casing and sealed with a radial seal against the casing |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10307880A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005015756A1 (en) * | 2005-04-06 | 2006-10-12 | Zf Lenksysteme Gmbh | Steering element for motor vehicle, forms concave or convex curvature at contact areas of outer race and central trunnion mounting or at contact areas of inner race and shaft in anti-friction bearing |
DE102006039740A1 (en) * | 2006-08-24 | 2008-02-28 | Schaeffler Kg | Auxiliary drive, particularly electromechanical auxiliary drive for steering gear, has housing device, spur gear, spiral spindle is held in housing device and engages with spur gear over meshing zone |
DE102008042608A1 (en) * | 2008-10-06 | 2010-04-15 | Zf Lenksysteme Gmbh | Bearing i.e. pivot bearing, for worm in steering gear of power steering, has inner ring for accommodating corrugated ends of worm, and spring element i.e. spring disk, for exerting axially acting force on outer ring |
US10988164B2 (en) | 2016-10-14 | 2021-04-27 | Thyssenkrupp Presta Ag | Electromechanical servo steering system having a spring-loaded bearing arrangement |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69506658T2 (en) * | 1994-10-04 | 1999-05-20 | Koyo Seiko Co., Ltd., Osaka | Variable throttle valve and hydraulic power steering |
JP2000190857A (en) * | 1998-12-28 | 2000-07-11 | Nsk Ltd | Electric power steering device |
DE19918411A1 (en) * | 1999-04-23 | 2000-11-23 | Gkn Viscodrive Gmbh | Controllable viscous coupling |
DE10011984A1 (en) * | 1999-05-22 | 2001-11-08 | Freudenberg Carl Fa | Automotive sealing ring for shafts comprizes sealing lips and edges on sides relative shaft and ring broached to admit sealing fluid to balance pressures across ring. |
-
2003
- 2003-02-25 DE DE10307880A patent/DE10307880A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69506658T2 (en) * | 1994-10-04 | 1999-05-20 | Koyo Seiko Co., Ltd., Osaka | Variable throttle valve and hydraulic power steering |
JP2000190857A (en) * | 1998-12-28 | 2000-07-11 | Nsk Ltd | Electric power steering device |
DE19918411A1 (en) * | 1999-04-23 | 2000-11-23 | Gkn Viscodrive Gmbh | Controllable viscous coupling |
DE10011984A1 (en) * | 1999-05-22 | 2001-11-08 | Freudenberg Carl Fa | Automotive sealing ring for shafts comprizes sealing lips and edges on sides relative shaft and ring broached to admit sealing fluid to balance pressures across ring. |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005015756A1 (en) * | 2005-04-06 | 2006-10-12 | Zf Lenksysteme Gmbh | Steering element for motor vehicle, forms concave or convex curvature at contact areas of outer race and central trunnion mounting or at contact areas of inner race and shaft in anti-friction bearing |
DE102006039740A1 (en) * | 2006-08-24 | 2008-02-28 | Schaeffler Kg | Auxiliary drive, particularly electromechanical auxiliary drive for steering gear, has housing device, spur gear, spiral spindle is held in housing device and engages with spur gear over meshing zone |
DE102008042608A1 (en) * | 2008-10-06 | 2010-04-15 | Zf Lenksysteme Gmbh | Bearing i.e. pivot bearing, for worm in steering gear of power steering, has inner ring for accommodating corrugated ends of worm, and spring element i.e. spring disk, for exerting axially acting force on outer ring |
DE102008042608B4 (en) * | 2008-10-06 | 2014-04-30 | Zf Lenksysteme Gmbh | Storage of a worm in a steering gear |
US10988164B2 (en) | 2016-10-14 | 2021-04-27 | Thyssenkrupp Presta Ag | Electromechanical servo steering system having a spring-loaded bearing arrangement |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2937207C2 (en) | Brake disc for a disc brake, in particular for motor vehicles | |
DE69937495T2 (en) | WAVE SEAL AND METHOD OF MANUFACTURING | |
EP1875090B1 (en) | Method of supporting a shaft on bearings and bearing arrangement | |
EP2941798B1 (en) | Environmentally sealed plug connector housing | |
DE3602500A1 (en) | RADIAL OIL SEAL | |
EP2817539B1 (en) | Radial shaft seal | |
DE102006022382A1 (en) | Apparatus and method for attaching a wiper motor to a wiper linkage | |
DE19652000A1 (en) | Semi-integrated seal on gear near driven shaft | |
EP2265834B1 (en) | Cage for a rolling element bearing | |
DE20116358U1 (en) | Ball joint | |
EP3361118A1 (en) | Air spring with a two-part plastic bead plate | |
DE3517499C2 (en) | ||
DE19708932C1 (en) | Track-rod ends for vehicle suspension | |
DE10307880A1 (en) | Electric supplementary/external power steering for motor vehicles has a servomotor and a servomotor shaft protruding from a casing and sealed with a radial seal against the casing | |
DE19951340C2 (en) | sealing arrangement | |
DE102007034760B4 (en) | Faltenbalganschluss | |
EP0570736A1 (en) | Articulation for chassis parts of a motor car | |
DE102006027048B3 (en) | Bellow with bend protection e.g. for multi-component drive shafts with constant velocity joint, has integrated retention for multi-shafts and has one of joints connecting to shaft and support | |
DE10161491A1 (en) | Bellows seal for drive shaft and housing incorporates two collars, protective cap with holder collar, annular case and bearings | |
BE1026281B1 (en) | Electrical angle connector | |
EP1391619B1 (en) | Ball joint | |
DE3313319C1 (en) | Plug-in connection between a hose nipple and a housing wall | |
DE10125042A1 (en) | Flanged ball pin | |
DE102013004059A1 (en) | A planetary gear and method for connecting a ring gear of a planetary gear with a customer interface flange for flexible custom mating dimensions and using a planetary gear | |
DE4241418C2 (en) | Shaft seal |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8110 | Request for examination paragraph 44 | ||
R016 | Response to examination communication | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20140902 |