DE102008054441B4 - Swivel bearing for the shaft of a steering system - Google Patents
Swivel bearing for the shaft of a steering system Download PDFInfo
- Publication number
- DE102008054441B4 DE102008054441B4 DE102008054441.8A DE102008054441A DE102008054441B4 DE 102008054441 B4 DE102008054441 B4 DE 102008054441B4 DE 102008054441 A DE102008054441 A DE 102008054441A DE 102008054441 B4 DE102008054441 B4 DE 102008054441B4
- Authority
- DE
- Germany
- Prior art keywords
- bearing
- ring
- housing
- swivel ring
- pivot
- 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.)
- Expired - Fee Related
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Classifications
-
- 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
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/06—Ball or roller bearings
- F16C23/08—Ball or roller bearings self-adjusting
- F16C23/082—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface
- F16C23/084—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface sliding on a complementary spherical surface
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/61—Toothed gear systems, e.g. support of pinion shafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Power Steering Mechanism (AREA)
- Gear Transmission (AREA)
- Support Of The Bearing (AREA)
Abstract
Lagerung einer Welle in einem Getriebes eines Lenksystems, mit einem Schwenkring (1) und einem Vierpunktlager, welches in dem Schwenkring (1) drehbar gelagert ist, wobei der Schwenkring (1) in einem Gehäuse des Getriebes mit einer Stellschraube (3) befestigt ist, dadurch gekennzeichnet, dass der Schwenkring (1) in axialer Richtung eine keilförmige Aussparung aufweist, dass die Stellschraube (3) mit einer axial angeformten Keilform in die Aussparung eingesetzt wird und damit der Schwenkring (1) im Gehäuse spielfrei radial eingespannt wird.Bearing of a shaft in a transmission of a steering system, with a swivel ring (1) and a four-point bearing, which is rotatably mounted in the swivel ring (1), wherein the swivel ring (1) in a housing of the transmission with a screw (3) is fixed, characterized in that the swivel ring (1) in the axial direction has a wedge-shaped recess, that the adjusting screw (3) is inserted with an axially formed wedge shape in the recess and thus the swivel ring (1) is radially clamped in the housing without play.
Description
Die Erfindung betrifft die Lagerung einer Welle in einem Getriebe eines Lenksystems nach dem Oberbegriff des Patentanspruchs 1.The invention relates to the mounting of a shaft in a transmission of a steering system according to the preamble of
In Getrieben von Lenksystemen, insbesondere in Zahnstangenlenkgetrieben oder Schneckenradgetrieben sind Wellen mit treibenden Rädern, wie Ritzel oder Schnecken, in einem Festlager und einem radialbeweglichen Loslager gelagert.In transmissions of steering systems, in particular in rack and pinion steering gears or worm gear shafts with driving wheels, such as pinions or worms, stored in a fixed bearing and a radially movable floating bearing.
Aus der
Das Vierpunktlager wird in dem Schwenkring zur Vermeidung von Geräuschen relativ spielfrei geführt. Ebenso muss das gesamte Schwenklager relativ spielfrei im Gehäuse befestigt sein. Für die Befestigung ist eine Stellschraube vorgesehen, welche axial den Schwenkring gegen das Gehäuse drückt. Radial wird das Schwenklager im Gehäuse mit einer Spielpassung gehalten.The four-point bearing is guided in the swivel ring to avoid noise relatively free of play. Likewise, the entire pivot bearing must be mounted relatively free of play in the housing. For fixing an adjusting screw is provided, which axially presses the pivot ring against the housing. Radially, the pivot bearing is held in the housing with a clearance fit.
Aufgrund von Fertigungstoleranzen ist das axiale Spiel des Vierpunktlagers in dem Schwenkring unter Last relativ hoch. Die Toleranz kann auch nicht zu gering gehalten werden, da das Lager in dem Schwenkring schwenkbar bleiben muss. Allerdings führen schon geringe Axialspiele unter axialer Belastung im Getriebe zu Geräuschen.Due to manufacturing tolerances, the axial play of the four-point bearing in the swivel ring under load is relatively high. The tolerance can not be kept too low, since the bearing must remain pivotable in the pivot ring. However, even small axial play under axial load in the transmission to noise.
Der Erfindung liegt die Aufgabe zugrunde, ein Schwenklager zu schaffen, bei dem das axiale und radiale Spiel des kompletten Schwenklagers im Gehäuse spielfrei eingestellt werden kann. Gleichzeitig soll das axiale und radiale Spiel des Vierpunktlagers im Schwenkring einstellbar sein.The invention has for its object to provide a pivot bearing, in which the axial and radial play of the complete pivot bearing can be adjusted without play in the housing. At the same time, the axial and radial play of the four-point bearing in the pivot ring should be adjustable.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Patentanspruchs 1 gelöst.This object is achieved by the features of
Dadurch, dass die Stellschraube mit einer keilförmigen Anformung in eine keilförmige Aussparung an dem Schwenkring eingesetzt wird, kann der Schwenkring im Gehäuse spielfrei radial eingespannt werden.Characterized in that the adjusting screw is inserted with a wedge-shaped Anformung in a wedge-shaped recess on the pivot ring, the pivot ring in the housing can be clamped radially free of play.
Die keilförmige Anformung an der Stellschraube weist eine schräge Fläche auf, die radial nach innen gerichtet ist. Beim Einschrauben der Stellschraube wirkt dadurch eine Kraft auf die schräge Fläche des Schwenkrings, welche diesen nach innen verformt. Durch diesen Vorgang wird das axiale Spiel, welches das Vierpunktlager im Schwenkring hat, einstellbar gemacht.The wedge-shaped Anformung on the screw has an inclined surface which is directed radially inward. When screwing the screw thereby acts a force on the inclined surface of the pivot ring, which deforms this inward. By this operation, the axial play which the four-point bearing has in the swing ring is made adjustable.
Am äußeren Umfang der keilförmigen Anformung ist ein federnder Ring angelegt. Beim Einschrauben der Stellschraube befindet sich der Ring axial zwischen der Stellschraube und dem Schwenkring und sorgt dort für eine axiale Vorspannung des Schwenklagers gegen das Gehäuse. Somit kann nie ein axiales Spiel zwischen Gehäuse und Schwenklager entstehen. Der federnde Ring kann beispielsweise aus Gummi oder Kunststoff sein.At the outer periphery of the wedge-shaped Anformung a resilient ring is applied. When screwing the screw, the ring is axially between the screw and the swivel ring and there provides for an axial bias of the pivot bearing against the housing. Thus, an axial clearance between housing and pivot bearing can never arise. The resilient ring may be made of rubber or plastic, for example.
Durch die Spielfreiheit des Schwenklagers im Gehäuse in axialer und radialer Richtung können die Geräusche im Lenkgetriebe erheblich vermindert werden. Da das Spiel des Vierpunktlagers in dem Schwenkring nun eingestellt werden kann, ist die Lagerung nun unabhängig von Fertigungstoleranzen.Due to the freedom from play of the pivot bearing in the housing in the axial and radial directions, the noise in the steering gear can be significantly reduced. Since the game of four-point bearing in the pivot ring can now be adjusted, the storage is now independent of manufacturing tolerances.
Die Position der Stellschraube muss nach der Montage in der eingestellten Position sichergestellt werden. Vorzugsweise wird die Stellschraube deshalb mit dem Gehäuse verstemmt oder verklebt.The position of the set screw must be ensured after installation in the set position. Preferably, the set screw is therefore caulked or glued to the housing.
Ein Ausführungsbeispiel ist nachstehend anhand der Zeichnung gezeigt.An embodiment is shown below with reference to the drawing.
In
Das Schwenklager umfasst einen Schwenkring (
In dem Schwenkring befindet sich ein Vierpunktlager, welches hier als Kugellager ausgeführt ist. Der Außenring (
In das Gehäuse ist axial gegen das Schwenklager eine Stellschraube (
Am äußeren Umfang der keilförmigen Anformung ist ein federnder Ring (
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008054441.8A DE102008054441B4 (en) | 2008-12-10 | 2008-12-10 | Swivel bearing for the shaft of a steering system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008054441.8A DE102008054441B4 (en) | 2008-12-10 | 2008-12-10 | Swivel bearing for the shaft of a steering system |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102008054441A1 DE102008054441A1 (en) | 2010-06-17 |
DE102008054441B4 true DE102008054441B4 (en) | 2015-06-18 |
Family
ID=42168241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008054441.8A Expired - Fee Related DE102008054441B4 (en) | 2008-12-10 | 2008-12-10 | Swivel bearing for the shaft of a steering system |
Country Status (1)
Country | Link |
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DE (1) | DE102008054441B4 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013003749A1 (en) | 2013-03-06 | 2014-09-11 | Thyssenkrupp Presta Aktiengesellschaft | Angularly movable bearing arrangement for pinions in reduction gears of electromechanical steering systems |
CN104832544A (en) * | 2015-05-18 | 2015-08-12 | 江苏联动轴承有限公司 | Special self-lubricating self-aligning worm assembly bearing for automobile EPS (electronic power steering) |
EP3315817A4 (en) * | 2015-06-29 | 2018-07-25 | NSK Ltd. | Worm speed reducer |
CN107463753B (en) * | 2017-08-16 | 2023-10-24 | 博世华域转向系统有限公司 | Structure for improving noise of EPSc driving unit and inclination angle calculation method |
DE102018106026A1 (en) * | 2018-03-15 | 2019-09-19 | Thyssenkrupp Ag | Worm gear with a swivel bearing with a defined swivel axis |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0735147A (en) * | 1993-07-26 | 1995-02-03 | Hitachi Ltd | Dynamo-electric machine |
DE10161715A1 (en) * | 2001-12-15 | 2003-06-18 | Zf Lenksysteme Gmbh | Electrical power steering for motor vehicle has hydraulic pressure biasing device, coupling for connecting drive shaft to worm and pivotable bearing in coupling region |
DE10349783A1 (en) * | 2003-10-24 | 2005-05-25 | Ina-Schaeffler Kg | Radial bearing for a drive shaft of vehicles |
DE60210154T2 (en) * | 2001-01-22 | 2007-03-15 | Koyo Seiko Co., Ltd. | Motor-driven power steering device |
-
2008
- 2008-12-10 DE DE102008054441.8A patent/DE102008054441B4/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0735147A (en) * | 1993-07-26 | 1995-02-03 | Hitachi Ltd | Dynamo-electric machine |
DE60210154T2 (en) * | 2001-01-22 | 2007-03-15 | Koyo Seiko Co., Ltd. | Motor-driven power steering device |
DE10161715A1 (en) * | 2001-12-15 | 2003-06-18 | Zf Lenksysteme Gmbh | Electrical power steering for motor vehicle has hydraulic pressure biasing device, coupling for connecting drive shaft to worm and pivotable bearing in coupling region |
DE10349783A1 (en) * | 2003-10-24 | 2005-05-25 | Ina-Schaeffler Kg | Radial bearing for a drive shaft of vehicles |
Also Published As
Publication number | Publication date |
---|---|
DE102008054441A1 (en) | 2010-06-17 |
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OR8 | Request for search as to paragraph 43 lit. 1 sentence 1 patent law | ||
R163 | Identified publications notified | ||
R012 | Request for examination validly filed | ||
R163 | Identified publications notified |
Effective date: 20141215 |
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R012 | Request for examination validly filed |
Effective date: 20150114 |
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R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R081 | Change of applicant/patentee |
Owner name: ROBERT BOSCH AUTOMOTIVE STEERING GMBH, DE Free format text: FORMER OWNER: ZF LENKSYSTEME GMBH, 73527 SCHWAEBISCH GMUEND, DE Effective date: 20150423 |
|
R020 | Patent grant now final | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |