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1. WO2022008430 - POWER-ASSISTED STEERING FOR A MOTOR VEHICLE

Publication Number WO/2022/008430
Publication Date 13.01.2022
International Application No. PCT/EP2021/068492
International Filing Date 05.07.2021
IPC
F16C 19/18 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
19Bearings with rolling contact, for exclusively rotary movement
02with bearing balls essentially of the same size in one or more circular rows
14for both radial and axial load
18with two or more rows of balls
F16C 25/08 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
25Bearings for exclusively rotary movement adjustable for wear or play
06Ball or roller bearings
08self-adjusting
F16C 35/077 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
35Rigid support of bearing units; Housings, e.g. caps, covers
04in the case of ball or roller bearings
06Mounting of ball or roller bearings; Fixing them onto shaft or in housing
07Fixing them on the shaft or housing with interposition of an element
077between housing and outer race ring
F16H 25/20 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
25Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
18for conveying or interconverting oscillating or reciprocating motions
20Screw mechanisms
F16H 25/22 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
25Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
18for conveying or interconverting oscillating or reciprocating motions
20Screw mechanisms
22with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
F16H 55/18 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
55Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
02Toothed members; Worms
17Toothed wheels
18Special devices for taking-up backlash
Applicants
  • THYSSENKRUPP PRESTA AG [LI]/[LI]
  • THYSSENKRUPP AG [DE]/[DE]
Inventors
  • ILLÉS, András
  • SEIFRIED, Dennis
Agents
  • THYSSENKRUPP INTELLECTUAL PROPERTY GMBH
Priority Data
10 2020 208 584.608.07.2020DE
Publication Language German (de)
Filing Language German (DE)
Designated States
Title
(DE) HILFSKRAFTLENKUNG FÜR EIN KRAFTFAHRZEUG
(EN) POWER-ASSISTED STEERING FOR A MOTOR VEHICLE
(FR) DIRECTION ASSISTÉE POUR UN VÉHICULE À MOTEUR
Abstract
(DE) Die vorliegende Erfindung betrifft eine Hilfskraftlenkung (1) für ein Kraftfahrzeug, umfassend eine in eine Spindelmutter (62) eingreifende, axial in Richtung einer Spindelachse (S) erstreckte, in einem Gehäuse (31) axial verlagerbare Gewindespindel (42), und eine Antriebseinheit mit einem drehfest mit der Spindelmutter (62) verbundenen, um die Spindelachse (S) drehend antreibbaren Getrieberad (6), welches in dem Gehäuse (31) in einer Lageranordnung (7) drehbar gelagert ist, die mindestens einen Lageraußenring (71) aufweist, der stirnseitig über ein Federelement (82, 86) an dem Gehäuse (31) axial abgestützt ist und der koaxial in einem Hülsenelement (81) aufgenommen und radial in dem Gehäuse (31) gehalten ist. Um den Fertigungs- und Montageaufwand zu verringern, schlägt die Erfindung vor, dass das Federelement als Federabschnitt (82, 86) und das Hülsenelement als damit einstückig verbundener Hülsenabschnitt (81) an einer einstückigen Trägerhülse (8) ausgebildet sind.
(EN) The invention relates to power-assisted steering (1) for a motor vehicle, comprising a threaded spindle (42) engaging in a spindle nut (62), extending axially in the direction of a spindle axis (S) and axially moveably arranged in a housing (31), and a drive unit having a gear wheel (6) which is rotationally fixed to the spindle nut (62) and can be rotationally driven about the spindle axis (S), and which is rotatably mounted in the housing (31) in a bearing assembly (7) having at least one outer bearing ring (71) which is axially supported on the housing (31) on the end side via a spring element (82, 86) and which is coaxially accommodated in a sleeve element (81) and radially retained in the housing (31). According to the invention, in order to reduce the complexity of manufacturing and assembly, the spring element is designed as a spring section (82, 86) and the sleeve element is designed as an integrally connected sleeve section (81) on an integral carrier sleeve (8).
(FR) L'invention concerne une direction assistée (1) pour un véhicule à moteur, comprenant une broche filetée (42) venant en prise dans un écrou de broche (62), s'étendant axialement dans la direction d'un axe de broche (S) et disposée de manière à pouvoir se déplacer axialement dans un boîtier (31) et une unité d'entraînement ayant une roue dentée (6) solidaire en rotation de l'écrou de broche (62) et qui peut être entraînée en rotation autour de l'axe de broche (S) et qui est montée rotative dans le boîtier (31) dans un ensemble roulement (7) comportant au moins une bague de roulement extérieure (71) qui est supportée axialement sur le boîtier (31) sur le côté d'extrémité par l'intermédiaire d'un élément ressort (82, 86) et qui est logée de manière coaxiale dans un élément manchon (81) et retenue radialement dans le boîtier (31). Selon l'invention, pour réduire la complexité de fabrication et d'assemblage, l'élément ressort est réalisé sous la forme d'une section de ressort (82, 86) et l'élément manchon est réalisé sous la forme d'une section de manchon (81) reliée d'un seul tenant sur un manchon de support intégré (8).
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