EP3649037A1 - Mécanisme de direction - Google Patents

Mécanisme de direction

Info

Publication number
EP3649037A1
EP3649037A1 EP18731374.7A EP18731374A EP3649037A1 EP 3649037 A1 EP3649037 A1 EP 3649037A1 EP 18731374 A EP18731374 A EP 18731374A EP 3649037 A1 EP3649037 A1 EP 3649037A1
Authority
EP
European Patent Office
Prior art keywords
bearing
pinion shaft
pinion
stop
stop element
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Withdrawn
Application number
EP18731374.7A
Other languages
German (de)
English (en)
Inventor
Jens-Uwe Hafermalz
Dennis Fuechsel
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3649037A1 publication Critical patent/EP3649037A1/fr
Withdrawn legal-status Critical Current

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
    • B62D3/04—Steering gears mechanical of worm type
    • 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
    • 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
    • F16H55/22—Toothed members; Worms for transmissions with crossing shafts, especially worms, worm-gears
    • 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
    • F16H55/22—Toothed members; Worms for transmissions with crossing shafts, especially worms, worm-gears
    • F16H55/24—Special devices for taking up backlash
    • 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
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/039—Gearboxes for accommodating worm gears
    • 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
    • F16H57/00—General details of gearing
    • F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
    • 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
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02039—Gearboxes for particular applications
    • F16H2057/02082—Gearboxes for particular applications for application in vehicles other than propelling, e.g. adjustment of parts
    • 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
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F16H2057/0213—Support of worm gear shafts
    • 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
    • F16H57/00—General details of gearing
    • F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
    • F16H2057/126—Self-adjusting during operation, e.g. by a spring
    • F16H2057/127—Self-adjusting during operation, e.g. by a spring using springs

Definitions

  • the invention relates to a steering gear for a steering system, in particular for a power steering system, a motor vehicle.
  • the known power steering systems are based on a steering gear that translates the drive power of a hydraulic or electric steering motor and transmits, for example, the steering column.
  • Such steering gears are regularly formed in the form of a screw gear and in particular as fferradgetriebe or worm gear. These include a gear which is directly or indirectly connected to the steering column, as well as a meshing therewith, via a shaft driven by the steering motor pinion.
  • Gear elements formed due to wear and / or due to a setting of the material in gears made of plastic. Especially with a
  • the pinion shaft is pivotally mounted about an axis which is perpendicular to the longitudinal axis of the pinion shaft and at a distance from the meshing engagement of pinion and gear, and is pressed by means of one or more spring elements against the gear , The pivoting of the pinion shaft is doing regularly in one of the two
  • the bearing in the region of the other end is then designed with a defined mobility (so-called “floating bearing") in order to allow the deflection caused by the pivoting movement.
  • the fixed bearing may in particular be provided on the drive side, while the floating bearing on the free end of the pinion shaft is provided.
  • Pressing the pinion to the gear can be integrated both in the movable bearing and in the fixed bearing.
  • Such a steering gear in which the spring force is generated for the springing by means of the fixed bearing for example, from DE 10 2009 054 655 A1 known.
  • the rolling bearing which receives the pinion shaft in the region of the fixed bearing to store outside in a pivot sleeve.
  • Swivel sleeve includes a bearing sleeve which receives the rolling bearing largely free of play, and an outer ring which is held largely free of play in a receptacle of a housing of the steering gear, wherein the outer ring and the bearing sleeve are connected via a plurality of torsion webs, upon rotation of the outer ring to the bearing sleeve be twisted. After assembly of the steering gear, the torsion bars are twisted in such a way that the elastic restoring effect generated thereby causes the springing of the pinion shaft.
  • a steering gear in which, however, the spring force for the springing is applied in the region of the floating bearing, is known for example from DE 10 2008 002 769 A1.
  • Pivot axis must be given in a defined minimum, the so-called basic game, to avoid the pinion shaft due to temperature-induced strains, due to changes in geometry made of plastic elements of the steering gear, in particular the gear and / or the pinion shaft, due to water absorption and as a result of To allow runout of the gear and / or the pinion shaft.
  • the basic game must be limited, since then when using the pinion shaft, a drive power is transmitted from a steering motor to the gear, the spring-loaded pinion shaft is pivoted due to the toothing forces in the direction of an increasing distance from the gear until a stop for this pivoting movement, the can be formed in particular by the floating bearing of the steering gear is reached.
  • the pinion as a sprocket is in the transmission of a drive power from a steering motor on the (screw) pinion shaft on the gear, the fferritzelwelle not only to the actual pivot axis of the fixed bearing but (to a small extent) and a vertical due to the Vernierungs introduced pivoted to this pivot axis located second axis, which is due to clearance or elastic deformability in the storage (especially in the fixed bearing) of the fferritzelwelle.
  • Transverse movement of the pinion shaft in the region of the movable bearing can be undesirable for various reasons.
  • the invention is based on the object for a steering gear, as known for example from DE 10 2009 054 655 A1, to provide a floating bearing, limited by the simplest possible structural design on the one hand, the basic game, and on the other hand, a transverse movement is prevented as possible.
  • a steering gear for a steering system of a motor vehicle, which has a housing, a toothed wheel, a pinion meshing with the toothed wheel, in particular a screw pinion, and a (screw) pinion shaft comprising the pinion.
  • the pinion shaft is mounted on one side of the pinion in a fixed bearing, by which the pinion shaft is pivotally mounted within the housing about a pivotally mounted (and in particular perpendicular) to the longitudinal axis of the pinion shaft pivot axis, wherein the pivot axis is oriented such that pivoting to a change in the distance between the axes of rotation of the gear and the pinion leads.
  • This bearing may preferably comprise a pivot bearing in which the pinion shaft is received.
  • the rotary bearing can comprise at least one inner bearing ring and an outer bearing ring and optionally, in a preferred embodiment as rolling and in particular ball bearings, a plurality of rolling elements, in particular balls, arranged between the bearing rings, wherein the pinion shaft is accommodated within the inner bearing ring of the rotary bearing ,
  • the pivot bearing and in particular the outer bearing ring of the pivot bearing of the fixed bearing can continue to be accommodated in a bearing sleeve.
  • the bearing may include a pivot ring having an outer ring and an inner ring, which are pivotally connected to each other via one or more torsion bars, wherein the inner ring connected to the bearing sleeve or integrally Part of this is and the outer ring in the housing of the steering gear (with respect to at least one, preferably with respect to all directions, ie
  • the pinion shaft of a steering system is mounted on the other side of the pinion in a floating bearing comprising a pivot bearing in which the pinion shaft is received, wherein for the pivot bearing (and thus also for the end of the pinion shaft received therein) a radial mobility within of the housing with respect to the guided by the fixed bearing pivoting movement (about the defined pivot axis) of the pinion shaft gewehristet.
  • the pivot bearing of the floating bearing of the steering gear according to the invention may comprise at least one inner bearing ring and an outer bearing ring and optionally, in a preferred embodiment as rolling and in particular as a ball bearing, a plurality of arranged between the bearing rings rolling elements, in particular balls, wherein the pinion shaft within the inner bearing ring is included.
  • a steering gear according to the invention, that the pinion is biased by a biased spring element against the gear, that by pivoting the pinion shaft about the guided through the bearing pivot axis, which increases the distance between the axes of rotation of the gear and the Ritzels leads, the bias of the
  • the spring element may in particular be formed by the fixed bearing itself, for example, by the embodiment already described having a one or more torsion bars
  • Such a steering system according to the invention is characterized in that the pivot bearing, in particular an outer bearing ring of the pivot bearing, the movable bearing is directly or indirectly connected to a stop element which is slidably and simultaneously secured against rotation within a (in particular formed directly from the housing) receiving space is arranged, said is limited by a stop between the stop member and a wall of the receiving space guided by the fixed bearing pivoting movement of the pinion shaft (and thus the basic game described). Furthermore, it is provided that the stop element and the receiving space are formed such that only when such a stop is formed, due to the interaction of then contacting
  • the stop element may preferably be designed in the form of an annular stop sleeve, in which the rotary bearing of the movable bearing, in particular an outer bearing ring thereof, is received.
  • the invention is based on the recognition that the pinion shaft is always pivoted in the transmission of a relevant high drive power due to the toothing forces until reaching the stop about the pivot axis defined by the fixed bearing. Accordingly, it may be sufficient to have a likewise resulting from the teeth forces, undesirable transverse movement of the pinion shaft in the region of the movable bearing only structurally block when the pinion shaft has been pivoted to reach the stop. This can be done in a structurally simple manner by a suitable shaping for the contact surfaces, on the one hand of the
  • Stop sleeve and on the other hand are formed by the wall of the receiving space can be achieved. It should be noted that despite this (in existing stop) interaction of the contact surfaces to prevent or block a transverse movement of the stop sleeve and thus the pinion shaft ensures that the pinion shaft spring back and thus can be moved out of the stop as soon as the pinion shaft applied drive power has been reduced sufficiently or has been eliminated.
  • contact surface is to be understood in accordance with the invention as including also very small, linear or punctiform contact surfaces, for example when the stop element or the wall of the receiving space forms a contact relationship with the stop edge.
  • Stop element and the contact surface of the wall of the receiving space are curved and / or angled, whereby the largest possible contact in the formation of the stop can be achieved.
  • Stop element and the wall of the receiving space are formed similarly curved or angled. This is understood to mean that, with a curvature, the orientation of the curvature and the radius of curvature in respectively adjacent contact areas are the same or the same. The same applies to an angle formed between two contact regions of the individual contact surfaces in an angled embodiment. Further preferably, it can be provided that in a curved configuration of the contact surfaces of the curvature angle over the entire peripheral portion of the individual contact surfaces is constant, they thus each form a portion of a cylindrical surface, which may have a positive effect in particular the manufacturability.
  • the wall of the receiving space is (at least) cylindrical in the area surrounding the abutment element and the abutment element preferably in the form of a stop sleeve has an annular main body, wherein on the wall of the receiving space and / or on the outside of the base body at least one projection forming the respective contact surface is provided.
  • Such a projection may in particular be integrated in one piece and in particular also of the same material in the wall of the receiving space or in the main body of the stop element.
  • a projection may preferably be provided that the contact surface of the stop element in the circumferential direction ends on both sides in front of that radial plane of the base body which is aligned parallel to the pivot axis defined by the fixed bearing.
  • Stop sleeve with annular main body be relevant to ensure sufficient mobility for the stop sleeve within the receiving space.
  • Steering gear can be provided that a rotatably disposed in the housing part of the fixed bearing, in one embodiment with a one or more
  • Torsionsstege having pivot ring, in particular the bearing sleeve and / or an outer bearing ring of the pivot bearing of the fixed bearing, via a one- or multi-part connecting element is directly or indirectly connected to an outer bearing ring of the pivot bearing and / or with the stop element of the movable bearing. This can be achieved on the one hand, that the restoring moment of the elastically twisted
  • Torsionsstege of the swivel ring of the fixed bearing (if this is designed accordingly) is no longer transmitted exclusively via the pivot bearing of the fixed bearing on the pinion shaft to press this against the gear, but resulting from the restoring moment swivel load of the bearing sleeve of
  • Steering gear can affect.
  • the connecting element can also be used in an advantageous manner, the rotationally secure arrangement of the stop element within the
  • the stop member is rotatably connected to the connecting element.
  • Steering gear can be provided that the connecting element is at least partially tubular.
  • the connecting element is tubular over its entire length and surrounds the pinion shaft, wherein a (preferably the only) arranged in the region of the pinion (through) opening is provided in the tube shell of the connecting element, which extends over a Part of the circumference and a portion of the length of the tubular jacket extends and allows engagement of the pinion with the gear.
  • a tubular connecting element is relatively (in particular based on the component weight) resistant to bending and torsion, which on the one hand an advantageous
  • Embodiment of a steering gear according to the invention can be provided that the connecting element with a preferably provided bearing sleeve of the fixed bearing and / or with the stop element of the movable bearing integral (ie at least directly immovably connected to each other) and preferably in one piece (ie not connected to each other via separate connecting elements), in particular uniform material, is formed.
  • the pivot bearing of the movable bearing is mounted directly or indirectly within an (end) portion of the connecting element and a (same or another) portion of the connecting element within the stop element designed as a stop sleeve of the movable bearing. This can in particular lead to a relatively good mountability of such a steering gear according to the invention.
  • the invention also relates to a steering system having a steering gear according to the invention and a steering motor connected to the pinion shaft of the steering gear in a rotationally driving manner.
  • the gear of the steering gear can continue to be rotatably or rotationally drivingly connected to a steering shaft, in particular a steering column, the steering system.
  • Such an inventive steering system can in particular as
  • the steering system in such a way that of the steering motor (always) the entire steering torque required for steering is generated (especially for a so-called steer-by-wire functionality of the steering system or the motor vehicle, in which no mechanical connection between a steering handle (if still provided) and the steerable wheels is present).
  • the invention also relates to a motor vehicle with an inventive
  • FIG. 1 shows a longitudinal section through an inventive steering gear.
  • FIG. 2 shows a cross section through the steering gear along the sectional plane II-II in FIG. 1;
  • FIG. Fig. 3 a stop sleeve of a loose bearing of the steering gear in a
  • Fig. 4 the stop sleeve in a view from the front
  • Fig. 5 a connecting element, a pivot ring of a fixed bearing of
  • Fig. 1 shows the essential components of an inventive
  • Steering gear This comprises a housing 1, within which a gear 2 and a meshing with the gear 2 pinion 3 are rotatably arranged in the form of a fferritzels.
  • the pinion 3 and the pinion 3 comprehensive (screw) pinion shaft 4 are integrally formed in the form of a worm.
  • the gear 2 is fixedly mounted on an output shaft 5 of the steering gear.
  • This output shaft 5 which has a toothing for a secure rotationally fixed connection with the gear 2 in the illustrated embodiment, for example, with a trained at least in one section as a rack handlebar, whereby the rack performs a translational movement in a known manner via Radlenkhebel (not shown) in a pivoting movement of steerable wheels (not shown) of the motor vehicle can be translated.
  • the output shaft 5 may also be a steering column of a power steering system, which is connected to a steering wheel and a steering pinion on the
  • Handlebar acts.
  • the pinion shaft 4 has a drive-side end over which this with the
  • Output shaft of a steering motor (not shown, for example, an electric motor) is connectable.
  • the pinion shaft 4 is mounted in the housing 1 by means of a first bearing.
  • This bearing is designed as a fixed bearing 6, which allows a pivoting of the pinion shaft 4 about a pivot axis 7 (see Fig. 5).
  • This pivot axis 7 extends in FIG. 1 approximately perpendicular to the page level.
  • Such pivoting causes a deflection of the drive end opposite end of the pinion shaft 4, which is mounted there by means of a movable bearing 8 in a corresponding receptacle of the housing 1.
  • This floating bearing 8 is designed so that it allows the resulting from the pivoting of the pinion shaft 4 deflection of this end.
  • Both the fixed bearing 6 and the floating bearing 8 each comprise a pivot bearing in the form of a ball bearing 9.
  • inner bearing rings 10 of these ball bearings 9 the corresponding portions of the pinion shaft 4 are supported, while outer bearing rings 1 1 of the ball bearing 9 in each case a bearing device 12, 13th are stored, which in turn are accommodated in the housing 1.
  • the bearing devices 12, 13 are structurally designed so that they allow in the case of the fixed bearing 6, the pivoting of the pinion shaft 4 about the pivot axis 7 and in the case of the movable bearing 8, the deflection of the free end of the pinion shaft 4.
  • the bearing device 12 of the fixed bearing 6 comprises a bearing sleeve 14 with nikringförmigem cross section, the inner side in a first longitudinal section, the associated ball bearing 9 and in a second longitudinal section receives an inner ring 16 of a pivot ring 15.
  • This inner ring 16 of the pivot ring 15 is rotationally fixed and axially secured within the bearing sleeve 14 with the interposition of a support plate 17, wherein the inner ring 16 is supported on the outer bearing ring 1 1 of the ball bearing 9 of the fixed bearing 6.
  • the swivel ring 15 also comprises an outer ring 18 in addition to the inner ring 16.
  • the outer ring 18 is connected to the inner ring 16 via two torsion webs 19 (see FIG.
  • the outer ring 18, the inner ring 16 and the torsion bars 19 are preferably formed integrally from, for example, spring steel.
  • the two torsion bars 19 define the position of the pivot axis 7 about which the outer ring 18 is pivotable relative to the inner ring 16 of the pivot ring 15.
  • the torsion bars 19 of the pivot ring 15 not only allow pivoting of the outer ring 18 to the inner ring 16 and thus the pinion shaft 4 relative to the gear 2 and to the housing 1, but at the same time cause the spring force by which the pinion 3 of the pinion shaft 4 in the toothing of the gear 2 is pressed to the lowest possible backlash and thus a low noise during operation of the steering gear, especially in a so-called Komschen to reach.
  • the bearing device 13 of the floating bearing 8 comprises a stop element in the form of a stop sleeve 23, which is arranged movably within a receiving space 24 formed by the housing 1, that within a constructively defined basic game, the pivoting movement about the defined or formed by the fixed bearing 6 pivot axis. 7 is possible.
  • this basic game or this mobility in one direction by a complete or on each two edges of the individual teeth of pinion 3 and gear 2 occurring contact, which is caused by the spring load by means of the twisted torsion bars 19, and in the other direction by a stop , which are formed by a contact of contact surfaces 25, 26, on the one hand by the stop sleeve 23 and on the other hand by the receiving space 24 bounding wall of the housing 1, limited.
  • the receiving space 24 is cylindrical and consequently has a circular opening cross section (constant over the longitudinal extent).
  • the stop sleeve 23 comprises a
  • annular main body 27 of which on the outside two spaced-apart projections 28 rise, whose outer sides have part-cylindrical curved outer surfaces. These outer surfaces of the projections 28 in combination form the two-part contact surface 25 of the stop sleeve 23.
  • the radius of curvature of this contact surface 25 of the stop sleeve 23 corresponds to the radius of curvature of the receiving space 24 bounding wall, while the outer radius of curvature of the annular body 27 of the stop sleeve 23 is smaller than the radius of curvature of the receiving space 24 bounding wall.
  • Contact surface 26 of the wall of the receiving space 24 represent, contact.
  • Swivel axis 7 limited, but in addition a pivoting movement about an axis perpendicular to this pivot axis 7, the lateral (transverse) movement of the stop sleeve 23 and the end of the pinion shaft 4 received therein along a horizontal radial axis 30 of the main body of the stop sleeve 23rd
  • the contact surface 25 of the stop element 23 ends in the circumferential direction on both sides in front of the horizontal radial axis 30 and thus before that radial plane of the main body 27 of the stop sleeve 23, which is aligned parallel to the pivot axis 7 defined by the fixed bearing 6.
  • the steering gear further comprises a connecting element 31, which is integrated into the bearing sleeve 14 of the fixed bearing 6 (in one piece and of the same material) or designed as an extension thereof.
  • the extension member 31 is tubular with (partially) annular cross-section, wherein this forms a shell opening 32 which is arranged in a central portion with respect to the longitudinal axis of the connecting element 31 and extending over a Section of its scope extends.
  • a (tubular) end portion of the connecting element 31 extends into the floating bearing 8 of the steering gear, wherein the ball bearing 9 of the movable bearing 8 with the associated outer bearing ring 1 1 within this end portion of the
  • Connecting element 36 is mounted, while the end portion is in turn mounted inside the stop sleeve 23 of the movable bearing 8.
  • connecting element 31 By means of the connecting element 31 on the one hand ensures that the elastic restoring moments resulting from the torsion of the torsion bars 19 of the pivot ring 15 of the fixed bearing 6, not exclusively on the ball bearing 9 of the fixed bearing 6 are transmitted to the pinion shaft 4, resulting in a relatively high tilt load This ball bearing 9 would be connected. Rather, these are elastic

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Steering Controls (AREA)
  • Power Steering Mechanism (AREA)
  • Gear Transmission (AREA)

Abstract

L'invention concerne un mécanisme de direction pour un système de direction d'un véhicule automobile, comprenant : un carter (1), une roue dentée (2), un pignon (3) qui s'engrène avec la roue dentée (2) et un arbre de pignon (4) qui comporte le pignon (3). L'arbre de pignon (4) est monté d'un côté du pignon (3) dans un palier libre (8), lequel comporte un palier de rotation dans lequel est accueilli l'arbre de pignon (4). Une mobilité du palier de rotation à l'intérieur du carter (1) est garantie pour ce qui concerne la mobilité en pivotement de l'arbre de pignon (4) guidée par le palier fixe (6). Le palier de rotation du palier libre (8) est relié à un élément de butée qui est monté de manière coulissante et en même temps de manière bloquée en rotation à l'intérieur d'un espace d'accueil (24). La mobilité en pivotement de l'arbre de pignon (4) guidée par le palier fixe (6) est limitée par une butée entre l'élément de butée et une paroi de l'espace d'accueil (24). L'élément de butée et l'espace d'accueil (24) sont configurés de telle sorte qu'une mobilité en pivotement de l'arbre de pignon (4) autour d'un axe orienté perpendiculairement à l'axe de pivotement (7) n'est en outre bloquée que dans le cas d'une telle butée, en conséquence de la coopération des surfaces de contact (25, 26) qui se trouvent alors en contact de l'élément de butée et de la paroi de l'espace d'accueil (24).
EP18731374.7A 2017-07-05 2018-06-05 Mécanisme de direction Withdrawn EP3649037A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017211461.4A DE102017211461B4 (de) 2017-07-05 2017-07-05 Lenkgetriebe
PCT/EP2018/064682 WO2019007609A1 (fr) 2017-07-05 2018-06-05 Mécanisme de direction

Publications (1)

Publication Number Publication Date
EP3649037A1 true EP3649037A1 (fr) 2020-05-13

Family

ID=62620831

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18731374.7A Withdrawn EP3649037A1 (fr) 2017-07-05 2018-06-05 Mécanisme de direction

Country Status (5)

Country Link
US (1) US11407441B2 (fr)
EP (1) EP3649037A1 (fr)
CN (1) CN110831838B (fr)
DE (1) DE102017211461B4 (fr)
WO (1) WO2019007609A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018217459A1 (de) 2018-10-12 2020-04-16 Robert Bosch Gmbh Lenkgetriebe und Lenksystem für ein Kraftfahrzeug
DE102018217460A1 (de) 2018-10-12 2020-04-16 Robert Bosch Gmbh Verfahren zur Vorbereitung eines Lenkgetriebes für eine anschließende Nutzung und Lenkgetriebe

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4196831B2 (ja) 2001-12-03 2008-12-17 日本精工株式会社 電動パワーステアリング装置
JP4356485B2 (ja) * 2004-03-09 2009-11-04 株式会社ジェイテクト 電動パワーステアリング装置
JP4793034B2 (ja) * 2006-03-08 2011-10-12 日本精工株式会社 ウォーム減速機および電動パワーステアリング装置
KR100755909B1 (ko) * 2006-07-24 2007-09-06 주식회사 만도 전기식 조향장치의 유격보상구조
DE102008002769A1 (de) 2008-02-12 2009-08-20 Zf Lenksysteme Gmbh Schraubradgetriebe und damit ausgestattete elektrische Hilfskraftlenkung
DE102008042477A1 (de) * 2008-09-30 2010-04-01 Zf Lenksysteme Gmbh Loslager für eine Schnecke in einem Lenkgetriebe
DE102009054655A1 (de) 2009-12-15 2011-06-16 Zf Lenksysteme Gmbh Lenkgetriebe mit Festlager und Loslager für Schraubritzel
JP5618146B2 (ja) * 2010-12-24 2014-11-05 株式会社ジェイテクト 電動パワーステアリング装置
DE102013104521A1 (de) 2013-05-03 2014-11-20 Zf Lenksysteme Gmbh Lenkgetriebe
DE102014107073A1 (de) * 2014-05-20 2015-11-26 Robert Bosch Automotive Steering Gmbh Lenkgetriebe

Also Published As

Publication number Publication date
CN110831838A (zh) 2020-02-21
US11407441B2 (en) 2022-08-09
DE102017211461A1 (de) 2019-01-10
CN110831838B (zh) 2022-03-04
WO2019007609A1 (fr) 2019-01-10
DE102017211461B4 (de) 2024-06-27
US20210155280A1 (en) 2021-05-27

Similar Documents

Publication Publication Date Title
EP3405378B1 (fr) Colonne de direction à réglage électrique en hauteur pour un véhicule à moteur
DE1630005C3 (de) Sicherheitslenksäule für Kraftfahrzeuge
EP0943525B1 (fr) Colonne de direction d'un véhicule automobile
EP3544878A1 (fr) Mécanisme de direction et système de direction
EP3634834A1 (fr) Palier libre, mécanisme de direction et système de direction
WO2015176866A1 (fr) Mécanisme de direction
EP3426541B1 (fr) Mécanisme de direction
WO2018091200A1 (fr) Système de direction
EP3538418B1 (fr) Palier fixe et mécanisme de direction
WO2004005761A1 (fr) Dispositif de pression
WO2020074223A1 (fr) Mécanisme de direction et système de direction pour un véhicule automobile
EP3649037A1 (fr) Mécanisme de direction
DE102018130734A1 (de) Kugelmutterbaugruppe für eine servolenkungbaugruppeeines fahrzeugs
WO2018206305A1 (fr) Palier fixe, mécanisme de direction et système de direction
DE102019207614A1 (de) Lenkgetriebe für ein Kraftfahrzeug
DE102020214844A1 (de) Lenksystem für ein Kraftfahrzeug
WO2019101431A1 (fr) Procédé de fabrication d'un mécanisme de direction
DE102016109847A1 (de) Lenksystem, Lageranordnung und Lagerring
DE102020007970A1 (de) Lenkspindel für Fahrzeuge, insbesondere für Nutzfahrzeuge
WO2022038027A1 (fr) Système de direction comprenant trois parties de boîtier et des éléments de transmission montés dans celles-ci
DE102019217542A1 (de) Lagervorrichtung für ein Loslager, Lenkgetriebe und Lenksystem
EP3710335A1 (fr) Procédé de fabrication d'un dispositif de roulement pour un palier fixe d'un mécanisme de direction d'un véhicule automobile
WO2019086170A1 (fr) Système de direction
WO2019154675A1 (fr) Mécanisme de direction, système de direction et procédé de fabrication d'une bague pivotante destinée à un mécanisme de direction
DE102016121394A1 (de) Festlager, Lenkgetriebe und Lenksystem

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20200205

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20201211