DE2634054A1 - Noise damper for rack and pinion steering gear - has rack tensioning guide sleeve with rubber bush - Google Patents

Noise damper for rack and pinion steering gear - has rack tensioning guide sleeve with rubber bush

Info

Publication number
DE2634054A1
DE2634054A1 DE19762634054 DE2634054A DE2634054A1 DE 2634054 A1 DE2634054 A1 DE 2634054A1 DE 19762634054 DE19762634054 DE 19762634054 DE 2634054 A DE2634054 A DE 2634054A DE 2634054 A1 DE2634054 A1 DE 2634054A1
Authority
DE
Germany
Prior art keywords
rack
sleeve
steering gear
sliding cover
pressure piece
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.)
Ceased
Application number
DE19762634054
Other languages
German (de)
Inventor
Rudolf Heyartz
Peter Steiner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Audi AG
Original Assignee
Audi NSU Auto Union AG
Audi AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19752510879 external-priority patent/DE2510879A1/en
Application filed by Audi NSU Auto Union AG, Audi AG filed Critical Audi NSU Auto Union AG
Priority to DE19762634054 priority Critical patent/DE2634054A1/en
Publication of DE2634054A1 publication Critical patent/DE2634054A1/en
Ceased legal-status Critical Current

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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Gears, Cams (AREA)
  • Transmission Devices (AREA)

Abstract

The rack housing (1) is provided with a cylindrical recess (1a) containing a sliding cover (5). The sliding cover houses a spring loaded pressure piece to apply a vertical force to keep the rack (2) pressed against the pinion (3a). The pressure piece is divided by a longitudinal gap into two cylindrical parts (4a, 4b) to mesh with the rack gable roof fashion. The sliding cover (12) tension is adjustable by a set screw (11) which bears on the sliding cover base. The plate (13) has a larger dia. than the cylindrical recess (1a) to serve as an oil seal. A rubber bush (14) is provided between recess (1a) and sliding cover (5) to prevent metal to metal contact.

Description

Lenkgetriebe für KraftfahrzeugeSteering gears for automobiles

Die Erfindung bezieht sich auf ein Lenkgetriebe für Kraftfahrzeuge gemäß dem Oberbegriff des Hauptanspruches.The invention relates to a steering gear for motor vehicles according to the preamble of the main claim.

Aufgabe der Erfindung ist es, dieses Lenkgetriebe weiter zu verbessern, insbesondere Geräusche z. B. aufgrund von Eahrbahnstößen zwischen Zahnstange und Hülse bzw. zwischen Hülse und Gehäuse des Lenkgetriebes noch stärker zu dämpfen.The object of the invention is to further improve this steering gear, especially noises z. B. due to road bumps between the rack and To dampen the sleeve or between the sleeve and the housing of the steering gear even more.

Diese Aufgabe. wird mit den in den Ansprüchen angegebenen Merkmalen gelöst. Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung schematisch dargestellt und im nachfolgenden näher beschrieben. Es zeigt: Fig. 1 einen Querschnitt durch ein erfindungsgemäßes Lenkgetriebe und Fig. 2 einen weiteren Querschnitt in der gleichen Schnittebene, wobei jedoch die Hülse nicht und die Büchse nur teilweise geschnitten ist.This task. is with the features specified in the claims solved. An embodiment of the invention is shown schematically in the drawing and described in more detail below. It shows: FIG. 1 a cross section through a steering gear according to the invention and FIG. 2 shows a further cross section in FIG same Section plane, but not the sleeve and the bushing is only partially cut.

Im Gehäuse 1 eines Lenkgetriebes ist eine Zahnstange 2 verschiebbar geführt. Die Zahnstange 2 ist in ständigem Eingriff mit einem Antriebsritzel 3a, welches mit einer Lenkwelle nicht dargestellt) verbunden ist. Das Gehäuse 1 ist mit einer zylindrischen Ausnehmung Ia versehen , in der ein DrEuckstück senkrecht zur Längsachse der Zahnstange 2 in einer Hülse 5 verschiebbar gelagert ist.A rack 2 is displaceable in the housing 1 of a steering gear guided. The rack 2 is in constant engagement with a drive pinion 3a, which is connected to a steering shaft (not shown). The housing 1 is provided with a cylindrical recess Ia in which a pressure piece vertically is mounted displaceably to the longitudinal axis of the rack 2 in a sleeve 5.

Am Bodenstück 9 der Hülse 5 ist eine Feder 12 abgestützt, die das Druckstück gegen die Zahnstange 2 drückt. Um einen Spielausgleich des Druckstückes in der Hülse 5 zu erreichen, ist dieses durch einen Längsspalt in zwei etwa halbzylindrische Druckstücke 4a, 4b geteilt Der Spielausgleich wird durch die-satteldachförmige Abschrägung an der Rückseite der Zahnstange 2 begünstigt. An einer Einstellschraube 11, welche in einem am Gehäuse 1 mit Schrauben 15 befestigten Flansch 16 eingeschaubt ist, ist das Bodenstück 9 der Hülse 5 abgestützt, so daß die Hülse 5 mittels der Einstellschraube 11 gegen die satteldachförmige Abschrägung der Zahnstange 2 anstellbar ist. Die der Hülse 5 zugewandte Stirnfläche der Einstellschraube 11 ist größenmäßig etwa gleich der Bodenfläche der Hülse 5. Zwischen der Einstellschraube 11 und dem Bodenstück 9 der Hülse 5 ist eine elastische, geräuschdämpfende Platte 13 beigelegt, die einen größeren Durchmesser als die zylindrische Ausnehmung 1a aufweist und zugleich als Abdichtung zwischen dem Gehäuse 1 und dem Flansch 16 dient. Zwischen der Hülse 5 und der Ausnehmung 1a im Gehäuse 1 ist eine Büchse 14 aus Gummi eingesetzt.On the bottom piece 9 of the sleeve 5, a spring 12 is supported, which The pressure piece presses against the rack 2. To compensate for play in the pressure piece to achieve in the sleeve 5, this is through a longitudinal gap in two approximately semi-cylindrical Pressure pieces 4a, 4b divided The clearance compensation is achieved by the bevel-gable-roof-shaped bevel favored on the back of the rack 2. On an adjusting screw 11, which is screwed into a flange 16 fastened to the housing 1 with screws 15, the bottom piece 9 of the sleeve 5 is supported so that the sleeve 5 by means of the adjusting screw 11 can be adjusted against the pitched roof-shaped bevel of the rack 2. the the end face of the adjusting screw 11 facing the sleeve 5 is approximately in size equal to the bottom surface of the sleeve 5. Between the adjusting screw 11 and the bottom piece 9 of the sleeve 5 is a elastic, noise-absorbing plate 13 enclosed, which has a larger diameter than the cylindrical recess 1a and at the same time serves as a seal between the housing 1 and the flange 16. Between the sleeve 5 and the recess 1a in the housing 1, a sleeve 14 made of rubber is inserted.

Wie aus der Zeichnung ersichtlich, ist die metallische Hülse 5 in keinem unmittelbarem Kontakt mit dem Gehäuse 1 des Lenkgetriebes, wodurch eine hervorragende Dämpfung erreicht ist. Zudem können aufgrund der elastischen Büchse 14 die Fertigungstoleranzen der Hülse 5 und der Ausnehmung 1a erweitert und somit die Herstellungskosten gesenkt werden.Durch die große Auflagefläche der elastischen Platte 13 zwischen dem Bodenstück 9 der Hülse 5 und der Einstellschraube 11 wird eine geringe spezifische Flächenpressung erzielt, die eine zu starke Nachgiebigkeit oder Deformation der elastischen Platte 13 verhindert. Die Anordnung der Feder 12 bewirkt ein ständiges Anpressen der Druckstücke 4a, 4b an die satteldachförmige Abschrägung der Zahnstange 2, während die Hülse 5 andererseits durch die Reaktionskraft der Feder 12 von der Zahnstange 2 weg gegen die Einstellschraube 11 gepreßt wird. Dementsprechend tritt an der Hülse 5 kein Verschleiß und somit keine Spielvergrößerung auf.As can be seen from the drawing, the metallic sleeve 5 is in no direct contact with the housing 1 of the steering gear, creating an excellent Attenuation is achieved. In addition, due to the elastic sleeve 14, the manufacturing tolerances the sleeve 5 and the recess 1a expanded and thus reduced the manufacturing costs Due to the large contact surface of the elastic plate 13 between the base piece 9 of the sleeve 5 and the adjusting screw 11 has a low specific surface pressure achieved that too much flexibility or deformation of the elastic plate 13 prevented. The arrangement of the spring 12 causes a constant pressing of the pressure pieces 4a, 4b to the gable-roof-shaped bevel of the rack 2, while the sleeve 5 on the other hand by the reaction force of the spring 12 away from the rack 2 against the adjusting screw 11 is pressed. Accordingly, no occurs on the sleeve 5 Wear and thus no increase in play.

L e e r s e i t eL e r s e i t e

Claims (3)

Patentansprüche enkgetriebe für Kraftfahrzeuge mit einer verschiebbar gelagerten Zahnstange, die von einem mehrteiligen federbelasteten Druckstück mit einem am Ende einer Lenkwelle angeordneten Zahnritzel im Eingriff gehalten wird und nach P 25 10 879.6 das Druckstück von einer Hülse umgeben ist und ein Zwischenraum zwischen der Anlagefläche der Hülse und der Anlagefläche des Druckstückes an der Zahnstange vorgesehen ist, dadurch gekennzeichnet, daß zwischen der Hülse (5) und der korrespondierenden Ausnehmung (in) im Gehäuse (1) eine Büchse (14) aus elastischem, geräuschdämpfendem Material, z. B. Gummi, eingesetzt ist. Claims enkgetriebe for motor vehicles with a slidable mounted rack, which is supported by a multi-part spring-loaded pressure piece with a pinion arranged at the end of a steering shaft is held in engagement and according to P 25 10 879.6 the pressure piece is surrounded by a sleeve and an intermediate space between the contact surface of the sleeve and the contact surface of the pressure piece on the Rack is provided, characterized in that between the sleeve (5) and the corresponding recess (in) in the housing (1) a sleeve (14) made of elastic, noise-dampening material, e.g. B. rubber is used. 2. Lenkgetriebe nach Anspruch 1, dadurch gekennzeichnet, daß das Bodenstück'(9) der Hülse (5) über eine elastische -Platte (13) an der Einstellschraube (11) abgestützt ist, wobei die Stirnfläche der Einstellschraube (ii) in etwa gleich der Bodenfläche der Hülse (5) ist. 2. Steering gear according to claim 1, characterized in that the Bottom piece '(9) of the sleeve (5) via an elastic plate (13) on the adjusting screw (11) is supported, the end face of the adjusting screw (ii) being approximately the same the bottom surface of the sleeve (5). 3. Lenkgetriebe nach Anspruch 2, dadurch gekennzeichnet, daß die elastische Platte (13) größer als die Ausnehmung (la) im Gehäuse (1) ist und zugleich als Abdichtung zwischen dem Gehäuse (1) und dem Flansch (16) dient. 3. Steering gear according to claim 2, characterized in that the elastic plate (13) is larger than the recess (la) in the housing (1) and at the same time serves as a seal between the housing (1) and the flange (16).
DE19762634054 1975-03-13 1976-07-29 Noise damper for rack and pinion steering gear - has rack tensioning guide sleeve with rubber bush Ceased DE2634054A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19762634054 DE2634054A1 (en) 1975-03-13 1976-07-29 Noise damper for rack and pinion steering gear - has rack tensioning guide sleeve with rubber bush

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19752510879 DE2510879A1 (en) 1975-03-13 1975-03-13 Damping for vehicle steering rack - has limited soft padding and main support with hard characteristics
DE19762634054 DE2634054A1 (en) 1975-03-13 1976-07-29 Noise damper for rack and pinion steering gear - has rack tensioning guide sleeve with rubber bush

Publications (1)

Publication Number Publication Date
DE2634054A1 true DE2634054A1 (en) 1978-02-02

Family

ID=5984197

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762634054 Ceased DE2634054A1 (en) 1975-03-13 1976-07-29 Noise damper for rack and pinion steering gear - has rack tensioning guide sleeve with rubber bush

Country Status (1)

Country Link
DE (1) DE2634054A1 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2461630A1 (en) * 1979-07-17 1981-02-06 Zahnradfabrik Friedrichshafen STEERING MECHANISM IN CREMAILLERE, IN PARTICULAR FOR AUTOMOTIVE VEHICLES
DE19717797A1 (en) * 1997-04-26 1998-10-29 Zahnradfabrik Friedrichshafen Vehicle rack=and=pinion steering system
DE19937253A1 (en) * 1999-08-06 2001-02-08 Schaeffler Waelzlager Ohg Pressure piece unit for rack and pinion steering transmission of vehicle, with spring in casing bush to press it towards first position
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
EP1086880A2 (en) * 1999-09-23 2001-03-28 Delphi Technologies, Inc. Automotive steering gear
DE10222183A1 (en) * 2002-05-18 2003-11-27 Zf Lenksysteme Gmbh Rack and pinion steering gear includes elastic element between stop and contact pressure element and enclosed by guide element to provide effective damping
WO2004051103A1 (en) * 2002-12-03 2004-06-17 Zf Lenksysteme Gmbh Rack and pinion electro-steering
DE10309303A1 (en) * 2003-03-04 2004-09-30 Zf Lenksysteme Gmbh Rack and pinion steering
WO2005073053A1 (en) * 2004-01-29 2005-08-11 Daimlerchrysler Ag Rack-and-pinion steering gear
EP1743826A1 (en) * 2005-07-12 2007-01-17 ThyssenKrupp Presta SteerTec GmbH Steering gear for a vehicle
DE102010053348A1 (en) 2010-12-03 2012-06-06 Zf Lenksysteme Gmbh Pressure element for steering box in steering gear of motor vehicle, has damping portion made of elastic material such as elastomer, that is provided in portion between pressure piece and sleeve
DE102011109878A1 (en) 2011-08-10 2013-02-14 Thyssenkrupp Presta Ag Rack and pinion steering gear
CN110017544A (en) * 2019-05-14 2019-07-16 四川长虹空调有限公司 Vertical air conditioner heavy load aluminium alloy slidable panels structure

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2461630A1 (en) * 1979-07-17 1981-02-06 Zahnradfabrik Friedrichshafen STEERING MECHANISM IN CREMAILLERE, IN PARTICULAR FOR AUTOMOTIVE VEHICLES
DE19717797A1 (en) * 1997-04-26 1998-10-29 Zahnradfabrik Friedrichshafen Vehicle rack=and=pinion steering system
DE19937254B4 (en) * 1999-08-06 2005-12-29 Ina-Schaeffler Kg Pressure-piece unit
DE19937253A1 (en) * 1999-08-06 2001-02-08 Schaeffler Waelzlager Ohg Pressure piece unit for rack and pinion steering transmission of vehicle, with spring in casing bush to press it towards first position
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
EP1086880A2 (en) * 1999-09-23 2001-03-28 Delphi Technologies, Inc. Automotive steering gear
EP1086880A3 (en) * 1999-09-23 2004-01-28 Delphi Technologies, Inc. Automotive steering gear
DE10222183A1 (en) * 2002-05-18 2003-11-27 Zf Lenksysteme Gmbh Rack and pinion steering gear includes elastic element between stop and contact pressure element and enclosed by guide element to provide effective damping
WO2004051103A1 (en) * 2002-12-03 2004-06-17 Zf Lenksysteme Gmbh Rack and pinion electro-steering
DE10309303A1 (en) * 2003-03-04 2004-09-30 Zf Lenksysteme Gmbh Rack and pinion steering
DE10309303B4 (en) * 2003-03-04 2007-12-27 Zf Lenksysteme Gmbh Rack and pinion steering
WO2005073053A1 (en) * 2004-01-29 2005-08-11 Daimlerchrysler Ag Rack-and-pinion steering gear
EP1743826A1 (en) * 2005-07-12 2007-01-17 ThyssenKrupp Presta SteerTec GmbH Steering gear for a vehicle
DE102010053348A1 (en) 2010-12-03 2012-06-06 Zf Lenksysteme Gmbh Pressure element for steering box in steering gear of motor vehicle, has damping portion made of elastic material such as elastomer, that is provided in portion between pressure piece and sleeve
DE102011109878A1 (en) 2011-08-10 2013-02-14 Thyssenkrupp Presta Ag Rack and pinion steering gear
WO2013020640A1 (en) 2011-08-10 2013-02-14 Thyssenkrupp Presta Ag Toothed-rack steering gear
US9316295B2 (en) 2011-08-10 2016-04-19 Thyssenkrupp Presta Ag Toothed-rack steering gear
CN110017544A (en) * 2019-05-14 2019-07-16 四川长虹空调有限公司 Vertical air conditioner heavy load aluminium alloy slidable panels structure
CN110017544B (en) * 2019-05-14 2024-01-30 四川长虹空调有限公司 Large-load aluminum alloy sliding panel structure of vertical air conditioner

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