DE102008040508A1 - Device for pressing steering rack at pinion in steering mechanism i.e. electro-steering mechanism, of motor vehicle, has pressure piece comprising chamber for receiving grain-like particles, where volume of chamber is variable - Google Patents
Device for pressing steering rack at pinion in steering mechanism i.e. electro-steering mechanism, of motor vehicle, has pressure piece comprising chamber for receiving grain-like particles, where volume of chamber is variable Download PDFInfo
- Publication number
- DE102008040508A1 DE102008040508A1 DE200810040508 DE102008040508A DE102008040508A1 DE 102008040508 A1 DE102008040508 A1 DE 102008040508A1 DE 200810040508 DE200810040508 DE 200810040508 DE 102008040508 A DE102008040508 A DE 102008040508A DE 102008040508 A1 DE102008040508 A1 DE 102008040508A1
- Authority
- DE
- Germany
- Prior art keywords
- pressure piece
- chamber
- rack
- spring element
- contraption
- 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- Withdrawn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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
- B62D3/12—Steering gears mechanical of rack-and-pinion type
- B62D3/123—Steering gears mechanical of rack-and-pinion type characterised by pressure yokes
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/01—Vibration-dampers; Shock-absorbers using friction between loose particles, e.g. sand
-
- 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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/26—Racks
- F16H55/28—Special devices for taking up backlash
- F16H55/283—Special devices for taking up backlash using pressure yokes
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)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Andrücken einer Zahnstange an ein mit der Zahnstange in Eingriff stehendes Ritzel, insbesondere für eine Lenkung eines Kraftfahrzeugs, mit einem in Richtung der Zahnstange belastbaren, in einem Gehäuse verschiebbar geführten Druckstück.The The invention relates to a device for pressing a rack on a with the rack engaging pinion, in particular for a steering a motor vehicle, with a loadable in the direction of the rack, in a housing slidably guided Pressure piece.
Bei denen aus dem Stand der Technik bekannten Vorrichtungen stößt während des Fahrbetriebs des Kraftfahrzeugs die Zahnstange das Druckstück von sich weg. Somit liegt das Druckstück, obwohl es in Richtung der Zahnstange belastet wird, nicht dauernd an der Zahnstange an, sondern bewegt sich immer wieder zu ihr hin und von ihr weg. Durch das ständige Anlegen des Druckstücks an die Zahnstange entstehen unerwünschte Geräusche.at those known from the prior art devices abuts during the Driving the motor vehicle, the rack, the pressure piece of itself path. Thus, the pressure piece, even though it is strained towards the rack, not permanently on the rack, but always moves back to her and away from her. Through the constant Applying the pressure piece to the rack arise unwanted noise.
Die Erfindung hat die Aufgabe eine gattungsgemäße Vorrichtung dahingehend zu verbessern, dass die Geräuschemission reduziert wird.The Invention has the object of a generic device to the effect to improve that noise emission is reduced.
Die Erfindung löst die gestellte Aufgabe mit einer Vorrichtung der eingangs genannten Art, bei der erfindungsgemäß das Druckstück eine Kammer zur Aufnahme von körnerartigen Partikeln aufweist. Durch die körnerartigen Partikel wird ein Anlegen des Druckstücks an die Zahnstange zeitlich verzögert, so dass das beim Anlegen entstehende Geräusch deutlich reduziert wird.The Invention solves the stated object with a device of the aforementioned Art, according to the invention, the pressure piece a Chamber for receiving granular Has particles. By the granular Particle is a time applying the pressure piece to the rack delayed so that the noise generated when creating is significantly reduced.
Das Volumen der Kammer kann veränderlich sein. Es kann sich also verkleinern und vergrößern. Folglich können die körnerartigen Partikel ein größeres oder ein kleineres Volumen ausfüllen. Beim Anlegen des Druckstücks an die Zahnstange werden die körnerartigen Partikel zeitlich verzögert aneinander geschoben, so dass sich ihr Gesamtvolumen und das Volumen der Kammer verkleinert.The Volume of the chamber can be variable. It can therefore shrink and enlarge. Consequently, the grains like Particles a larger or fill a smaller volume. When applying the pressure piece to the rack are the granular Particles delayed in time pushed together so that their total volume and volume the chamber downsized.
Damit das Volumen der Kammer veränderlich ist, kann die Kammer durch einen verschiebbaren Deckel verschlossen sein.In order to the volume of the chamber is variable is, the chamber can be closed by a sliding lid be.
Auf konstruktiv einfache Weise kann das Druckstück mit mindestens einem Federelement belastet werden, um es zuverlässig gegen die Zahnstange zu drücken.On structurally simple way, the pressure piece with at least one spring element be charged to it reliable to press against the rack.
Wenn das mindestens eine Federelement aus einem Elastomer gefertigt ist, so wird aufgrund der progressiven Federkennlinie des Elastomers das Druckstück besonders rasch gegen die Zahnstange gedrückt, wobei trotzdem die Geräuschemission deutlich niedriger als beim Stand der Technik ist.If the at least one spring element is made of an elastomer, this is due to the progressive spring characteristic of the elastomer the pressure piece pressed against the rack particularly quickly, while still the noise emission significantly lower than in the prior art.
In einer bevorzugten Ausführungsform kann sich das mindestens eine Federelement auf dem Deckel abstützen. Somit kann das Federelement im Zentrum des Druckstücks angreifen, um das Druckstück gleichmäßig gegen die Zahnstange zu drücken.In a preferred embodiment The at least one spring element can be supported on the lid. Consequently can attack the spring element in the center of the pressure piece to the pressure piece uniformly against to push the rack.
In einer Weiterbildung der Erfindung kann der Deckel als Federelement ausgebildet sein. Somit erfüllt der Deckel zwei Funktionen gleichzeitig, wodurch der Fertigungs- und Montageaufwand reduziert wird.In a development of the invention, the lid as a spring element be educated. Thus fulfilled the lid has two functions at the same time, and assembly costs is reduced.
Ferner ist es möglich, dass sich das mindestens eine Federelement auch auf dem Druckstück abstützt, um eine maximale Anpressung des Druckstücks gegen die Zahnstange zu erreichen.Further Is it possible, that the at least one spring element is also supported on the pressure piece to a maximum contact pressure of the pressure piece against the rack too to reach.
Das auf dem Deckel abstützbare Federelement und das auf dem Druckstück abstützbare Federelement können konzentrisch zueinander angeordnet sein. Somit sind die beiden Federelemente platzsparend in dem verhältnismäßig geringen zur Verfügung stehenden Einbauraum untergebracht. Ferner können die beiden Federelemente durch diese Anordnung das Druckstück gleichmäßig gegen die Zahnstange pressen.The supportable on the lid Spring element and the spring element which can be supported on the pressure piece can be concentric be arranged to each other. Thus, the two spring elements save space in the relatively small to disposal housed standing installation space. Furthermore, the two spring elements By this arrangement, press the pressure piece evenly against the rack.
In der Praxis hat es sich gut bewährt, wenn die körnerartigen Partikel ein Pulver und/oder Kugeln und/oder Späne und/oder Splitter aufweisen. Selbstverständlich sind auch andere körnerartige Partikel möglich.In In practice, it has worked well, if the granular Particles have a powder and / or balls and / or chips and / or splinters. Of course are also other granular Particles possible.
Das Druckstück kann aus einem Material mit selbst schmierenden Eigenschaften, wie beispielsweise Teflon, gefertigt sein. Auf diese Weise wird die Reibung zwischen dem Druckstück und der Zahnstange reduziert.The Pressure piece Can be made of a material with self-lubricating properties, such as For example, Teflon, be made. That way, the friction becomes between the pressure piece and the rack is reduced.
Es ist jedoch auch möglich zwischen dem Druckstück und der Zahnstange eine Folie zur Reduzierung der Reibung vorzusehen.It but it is also possible between the pressure piece and the rack to provide a film to reduce friction.
Ferner betrifft die Erfindung eine Lenkung, insbesondere eine Elektrolenkung für ein Kraftfahrzeug, bei der erfindungsgemäß eine Vorrichtung nach einem der Ansprüche 1 bis 12 vorgesehen ist.Further The invention relates to a steering, in particular an electric steering for a Motor vehicle, according to the invention, a device according to a the claims 1 to 12 is provided.
Nachfolgend werden verschiedene Ausführungsbeispiele der erfindungsgemäßen Vorrichtung anhand der beiliegenden Zeichnungen näher erläutert.following Be different embodiments the device according to the invention the accompanying drawings closer explained.
Im Einzelnen zeigen:in the Show individual:
Ein
von links nach rechts hin- und herschiebbarer Deckel
Ein
Federelement
Die
Federkraft des Federelements
Im
Betrieb drückt
das Federelement
Durch
den verschiebbar auf den Partikeln
- 1010
- Lenkungsteering
- 1111
- DruckstückPressure piece
- 1212
- Zahnstangerack
- 1313
- Ritzelpinion
- 1414
- Federelementspring element
- 2020
- Vorrichtungcontraption
- 2121
- Gehäusecasing
- 2222
- DruckstückPressure piece
- 2323
- Kammerchamber
- 2424
- Partikelparticle
- 2525
- Federelementspring element
- 2626
- Deckelcover
- 2727
- Zahnstangerack
- 2828
- Ausnehmungrecess
- 2929
- Stellschraubescrew
- 3030
- Vorrichtungcontraption
- 3131
- Federelementspring element
- 200200
- Wandungwall
Claims (13)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810040508 DE102008040508A1 (en) | 2008-07-17 | 2008-07-17 | Device for pressing steering rack at pinion in steering mechanism i.e. electro-steering mechanism, of motor vehicle, has pressure piece comprising chamber for receiving grain-like particles, where volume of chamber is variable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810040508 DE102008040508A1 (en) | 2008-07-17 | 2008-07-17 | Device for pressing steering rack at pinion in steering mechanism i.e. electro-steering mechanism, of motor vehicle, has pressure piece comprising chamber for receiving grain-like particles, where volume of chamber is variable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102008040508A1 true DE102008040508A1 (en) | 2010-01-21 |
Family
ID=41427345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE200810040508 Withdrawn DE102008040508A1 (en) | 2008-07-17 | 2008-07-17 | Device for pressing steering rack at pinion in steering mechanism i.e. electro-steering mechanism, of motor vehicle, has pressure piece comprising chamber for receiving grain-like particles, where volume of chamber is variable |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102008040508A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012019934A1 (en) | 2012-10-11 | 2014-04-17 | Volkswagen Aktiengesellschaft | Thrust element for pressing device used for pressing one element to other element for steering of motor vehicle e.g. motor car, has through hole that is accessed from one side of main portion and formed in region of contact surface |
| US20140366660A1 (en) * | 2012-02-02 | 2014-12-18 | 2F Lenksysteme Gmbh | Device for pressing a transmission element |
| CN107339356A (en) * | 2017-07-17 | 2017-11-10 | 武汉科技大学 | A kind of semi-active type electromagnetic particle damping absorber and method |
| WO2019172328A1 (en) * | 2018-03-07 | 2019-09-12 | Ntn株式会社 | Bearing vibration damping device |
| CN111075046A (en) * | 2019-12-31 | 2020-04-28 | 同济大学 | Volume-variable particle damper |
| CN115482801A (en) * | 2022-09-20 | 2022-12-16 | 神华准格尔能源有限责任公司 | Noise reduction mechanism and pipe belt machine with same |
| DE102022123602B3 (en) | 2022-09-15 | 2023-06-01 | Audi Aktiengesellschaft | clutch assembly |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE471359C (en) * | 1925-06-10 | 1929-02-11 | Anders Haakansson | Brake acting like a fluid brake |
| DE3637107A1 (en) * | 1986-10-31 | 1988-05-05 | Audi Ag | Device for a toothed-rack steering gear |
| JPH0783261A (en) * | 1993-09-13 | 1995-03-28 | Nakamichi Corp | Damper |
| DE19937254A1 (en) * | 1999-08-06 | 2001-02-15 | Schaeffler Waelzlager Ohg | Thrust piece module to press steering rack against pinion, for motor vehicles has cylindrical housing bush and sliding spring loaded sleeve for spring-loaded thrust piece |
| US20020162412A1 (en) * | 2001-05-01 | 2002-11-07 | Trw Inc. | Rack and pinion steering gear with a unitized yoke assembly |
| DE102004006935A1 (en) * | 2003-12-05 | 2005-06-30 | Zf Lenksysteme Gmbh | Device for pressing a rack |
| US20050255927A1 (en) * | 2002-05-14 | 2005-11-17 | Thk Co., Ltd. | Shaft member with vibration damping function |
| EP1821002A1 (en) * | 2004-10-29 | 2007-08-22 | Thk Co., Ltd. | Screw device |
-
2008
- 2008-07-17 DE DE200810040508 patent/DE102008040508A1/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE471359C (en) * | 1925-06-10 | 1929-02-11 | Anders Haakansson | Brake acting like a fluid brake |
| DE3637107A1 (en) * | 1986-10-31 | 1988-05-05 | Audi Ag | Device for a toothed-rack steering gear |
| JPH0783261A (en) * | 1993-09-13 | 1995-03-28 | Nakamichi Corp | Damper |
| DE19937254A1 (en) * | 1999-08-06 | 2001-02-15 | Schaeffler Waelzlager Ohg | Thrust piece module to press steering rack against pinion, for motor vehicles has cylindrical housing bush and sliding spring loaded sleeve for spring-loaded thrust piece |
| US20020162412A1 (en) * | 2001-05-01 | 2002-11-07 | Trw Inc. | Rack and pinion steering gear with a unitized yoke assembly |
| US20050255927A1 (en) * | 2002-05-14 | 2005-11-17 | Thk Co., Ltd. | Shaft member with vibration damping function |
| DE102004006935A1 (en) * | 2003-12-05 | 2005-06-30 | Zf Lenksysteme Gmbh | Device for pressing a rack |
| EP1821002A1 (en) * | 2004-10-29 | 2007-08-22 | Thk Co., Ltd. | Screw device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140366660A1 (en) * | 2012-02-02 | 2014-12-18 | 2F Lenksysteme Gmbh | Device for pressing a transmission element |
| US9587723B2 (en) * | 2012-02-02 | 2017-03-07 | Robert Bosch Automotive Steering Gmbh | Device for pressing a transmission element |
| DE102012019934A1 (en) | 2012-10-11 | 2014-04-17 | Volkswagen Aktiengesellschaft | Thrust element for pressing device used for pressing one element to other element for steering of motor vehicle e.g. motor car, has through hole that is accessed from one side of main portion and formed in region of contact surface |
| CN107339356A (en) * | 2017-07-17 | 2017-11-10 | 武汉科技大学 | A kind of semi-active type electromagnetic particle damping absorber and method |
| WO2019172328A1 (en) * | 2018-03-07 | 2019-09-12 | Ntn株式会社 | Bearing vibration damping device |
| CN111075046A (en) * | 2019-12-31 | 2020-04-28 | 同济大学 | Volume-variable particle damper |
| CN111075046B (en) * | 2019-12-31 | 2021-05-11 | 同济大学 | A variable volume particle damper |
| DE102022123602B3 (en) | 2022-09-15 | 2023-06-01 | Audi Aktiengesellschaft | clutch assembly |
| WO2024056567A1 (en) | 2022-09-15 | 2024-03-21 | Audi Ag | Clutch assembly |
| CN115482801A (en) * | 2022-09-20 | 2022-12-16 | 神华准格尔能源有限责任公司 | Noise reduction mechanism and pipe belt machine with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| R012 | Request for examination validly filed | ||
| R012 | Request for examination validly filed |
Effective date: 20150409 |
|
| 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 |
|
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |