WO2017097519A1 - Entraînement à broche et actionneur muni d'un entraînement à broche - Google Patents

Entraînement à broche et actionneur muni d'un entraînement à broche Download PDF

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Publication number
WO2017097519A1
WO2017097519A1 PCT/EP2016/076902 EP2016076902W WO2017097519A1 WO 2017097519 A1 WO2017097519 A1 WO 2017097519A1 EP 2016076902 W EP2016076902 W EP 2016076902W WO 2017097519 A1 WO2017097519 A1 WO 2017097519A1
Authority
WO
WIPO (PCT)
Prior art keywords
spindle
nut
thread
spindle drive
actuator
Prior art date
Application number
PCT/EP2016/076902
Other languages
German (de)
English (en)
Inventor
Lars-Theodor THOLE
Miguel DE CARVALHO
Christoph DOBBELHOFF
Original Assignee
Zf Friedrichshafen 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
Application filed by Zf Friedrichshafen Ag filed Critical Zf Friedrichshafen Ag
Publication of WO2017097519A1 publication Critical patent/WO2017097519A1/fr

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
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/2003—Screw mechanisms with arrangements for taking up backlash
    • F16H25/2006—Screw mechanisms with arrangements for taking up backlash with more than one nut or with nuts consisting of more than one bearing part
    • 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
    • B62D5/0421—Electric motor acting on or near steering gear
    • B62D5/0424—Electric motor acting on or near steering gear the axes of motor and final driven element of steering gear, e.g. rack, being parallel
    • 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
    • B62D5/0442—Conversion of rotational into longitudinal movement
    • B62D5/0445—Screw drives
    • 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
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2081—Parallel arrangement of drive motor to screw axis
    • 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
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2096—Arrangements for driving the actuator using endless flexible members

Definitions

  • the invention relates to a spindle drive according to the preamble of
  • Claim 8 The invention also relates to a use of the actuator.
  • the actuator is mounted centrally on the axle of the motor vehicle and acts simultaneously on the two rear wheels.
  • the actuator has a spindle drive, consisting of spindle and spindle nut, which is rotatably mounted in the housing and axially fixed.
  • the spindle nut is driven by an electric motor and causes an axial displacement of the spindle to one side or the other.
  • the spindle has an approximately centrally disposed threaded portion with a movement thread, which is in engagement with the spindle nut, and two conical spindle ends, which are each connected via a threaded sleeve with a bearing sleeve, which in turn is slidably guided in the housing.
  • joint forks are arranged for connection to a steering linkage.
  • the motion thread, z. B. formed as a trapezoidal thread has, due to the dimensions of spindle and nut thread, an axial play on, d. H. the flanks of trapezoidal thread and nut thread are not in each
  • a spindle drive that the spindle thread and the nut thread by a clamping element in
  • the clamping element is a loose nut with an internal thread, d. H. formed a second female thread, which is in engagement with the spindle thread.
  • the clamping element thus exerts on its internal thread an axial force on the spindle, which is supported on the flanks of the nut thread of the spindle nut.
  • the clamping element or the loose nut is supported via a spring element relative to the spindle nut.
  • the spring element acting on the loose nut clamping force is generated.
  • the spring element which is preferably designed as a plate spring, supported against a sleeve which receives the loose nut slidably in and is firmly connected to the spindle nut.
  • the supporting force of the spring element is thus on the sleeve on the
  • the clamping element or the loose nut is rotatably connected to the spindle nut.
  • the spindle nut and the loose nut on the frontally arranged claws are rotationally fixed, but axially slidably connected together. This ensures that the loose nut with the
  • the loose nut is arranged axially slidable within the sleeve. This ensures that the loose nut is centered on its outer circumference and axially displaceable.
  • the spindle drive according to the invention forms the drive for an actuator, which can be designed as a one-sided or two-sided or as a single or double-acting actuator. During operation of the actuator, the spindle is moved linearly and thus retracted and extended, ie it constantly changes its direction of movement, which has a backlash result - this is eliminated by the inventive bracing. In addition, an axial play occurring in the idle state of the spindle drive is eliminated.
  • Fig. 2 shows the spindle drive of FIG. 1 in a perspective sectional view
  • Fig. 3 shows an actuator with spindle drive.
  • Fig. 1 shows a spindle drive 1 with a spindle thread 2a having a spindle 2, which is in engagement with a female thread 3a of a spindle nut 3.
  • the spindle thread 2a and the nut thread 3a form a movement thread, which is preferably formed as a trapezoidal thread.
  • the spindle nut 3 is rotatably supported by a roller bearing 4 with respect to a housing, not shown, of an actuator and axially fixed.
  • On the spindle nut 3 is rotatably a
  • Pulley 5 is arranged, via which the spindle nut 3 is driven by a belt 6 in the direction of rotation.
  • the spindle 2 has, then to the
  • Spindle thread 2a a cylindrical, smooth spindle portion 2b, which is mounted on a needle bearing 7 relative to the spindle nut 3 and sealed by a sealing ring 8.
  • the spindle thread 2a is centered relative to the spindle nut 3 via a further bearing 9.
  • On the from the spindle nut 3 outstanding end of the spindle thread 2a is designed as a loose nut 10 clamping element 10 is arranged, which has an internal thread 10a, which is in engagement with the external thread 2a of the spindle 2, the spindle thread 2a.
  • the loose nut 10 is axially slidably disposed in a sleeve 1 1, which is fixedly connected to the spindle nut 3, preferably screwed to the spindle nut 3.
  • a designed as a plate spring 12 spring element 12 is supported on the one hand on the loose nut 10 and on the other hand on the sleeve 1 1, which has a designed as an abutment for the spring element 12 collar 1 1 a.
  • the loose nut 10 in conjunction with the disc spring 12 has the effect of exerting on the spindle 2 an axial force which presses the flanks of the spindle thread 2a against the flanks of the nut thread 3a of the spindle nut 3. This avoids axial play.
  • the loose nut 10 is - as shown in more detail in Fig. 2 - rotatably connected to the spindle nut 3.
  • Fig. 2 shows the spindle drive 1 according to FIG. 1 in a perspective view, wherein the same reference numerals as in Fig. 1 are used for the same parts.
  • the spindle nut 3 has, distributed over the circumference of the circumference, jaws 3b, while the loose nut 10 claws 10b, which are in engagement with the claws 3b of the spindle nut 3 and thus produce a positive connection in the direction of rotation, however, an axial movement between the spindle nut 3rd and allow loose mother 10.
  • the loose nut 10 is thus synchronized with the spindle nut 3.
  • Fig. 3 shows an actuator 20, as it is preferably used for the rear axle steering of a motor vehicle.
  • the actuator 20 has a spindle drive 21, which comprises a spindle 22, a spindle nut 23, bearing 24 and a pulley 25 which is drivable via a belt 26 by an electric motor 27.
  • the actuator 20 has a housing 28 which is fastened to the vehicle frame via a first joint 29.
  • the spindle 22 is fixedly connected at one of its two ends with a Aufschraubzapfen 30, which is axially slidably guided relative to the housing 28 and connected at its outer, protruding from the housing 28 end with a second hinge 31.
  • the actuator 20 is connected via the second joint 31 with a steering linkage, not shown, preferably one Track control connected to a rear axle steering of a motor vehicle and thus can cause the steering of a rear wheel, wherein it is supported on the vehicle side via the first joint 29.
  • a steering linkage not shown, preferably one Track control connected to a rear axle steering of a motor vehicle and thus can cause the steering of a rear wheel, wherein it is supported on the vehicle side via the first joint 29.
  • the spindle drive 21 can be supplemented by the spindle drive 1 according to the invention, as shown in Figures 1 and 2, wherein the spindle nut 3 is supported by the bearing 4 relative to the housing 28.
  • the drive of the spindle nut 3 is effected by the electric motor 27, which sets the pulley 5 via the belt 6 in rotation.
  • the spindle 2 is axially displaced in the longitudinal direction.

Landscapes

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

Abstract

L'invention concerne un entraînement à broche (1), comprenant une broche (2) pourvue d'un filetage de broche (2a) et un écrou de broche (3) pourvu d'un filetage d'écrou (3a). Le filet de broche (2a) et le filetage d'écrou (3a) sont réalisés sous la forme d'un filetage de déplacement (2a, 3a) et l'écrou de broche (3), qui peut être entraîné dans le sens de la rotation, est en prise avec la broche (2), qui peut coulisser dans le sens axial, par le biais du filetage de déplacement (2a, 3a). Selon l'invention, le filetage de broche (2a) et le filetage d'écrou (3a) sont serrés l'un contre l'autre dans le sens longitudinal de la broche (2) par le biais d'un élément de serrage (10).
PCT/EP2016/076902 2015-12-10 2016-11-08 Entraînement à broche et actionneur muni d'un entraînement à broche WO2017097519A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015224775.9 2015-12-10
DE102015224775.9A DE102015224775A1 (de) 2015-12-10 2015-12-10 Spindelantrieb und Aktuator mit Spindelantrieb

Publications (1)

Publication Number Publication Date
WO2017097519A1 true WO2017097519A1 (fr) 2017-06-15

Family

ID=57241105

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/076902 WO2017097519A1 (fr) 2015-12-10 2016-11-08 Entraînement à broche et actionneur muni d'un entraînement à broche

Country Status (2)

Country Link
DE (1) DE102015224775A1 (fr)
WO (1) WO2017097519A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112696473A (zh) * 2020-12-16 2021-04-23 武汉滨湖电子有限责任公司 一种调平撑腿

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016212408B4 (de) * 2016-07-07 2018-03-15 Zf Friedrichshafen Ag Aktuator für eine Hinterachslenkung
DE102016212396B4 (de) * 2016-07-07 2020-03-05 Zf Friedrichshafen Ag Aktuator für eine Hinterachslenkung
DE102017208737B4 (de) 2017-05-23 2023-04-20 Zf Friedrichshafen Ag Aktuator mit einem Spindelantrieb für eine Hinterachslenkung eines Kraftfahrzeuges
DE102017209684A1 (de) * 2017-06-08 2018-12-13 Zf Friedrichshafen Ag Aktuator mit einem Spindelantrieb
DE102017209683A1 (de) 2017-06-08 2018-12-13 Zf Friedrichshafen Ag Aktuator mit einem Spindelantrieb sowie Hinterachslenkung
DE102017209681A1 (de) 2017-06-08 2018-12-13 Zf Friedrichshafen Ag Aktuator mit einem Spindelantrieb sowie Hinterachslenkung
DE102017211672A1 (de) 2017-07-07 2019-01-10 Zf Friedrichshafen Ag Verstelleinrichtung für ein Fahrwerk eines Kraftfahrzeuges sowie Hinterachslenkung
DE102017214284B4 (de) * 2017-08-16 2021-05-06 Zf Friedrichshafen Ag Aktuator für eine Hinterachslenkung eines Kraftfahrzeuges
DE102017128520B4 (de) * 2017-12-01 2019-12-05 Schaeffler Technologies AG & Co. KG Aktuator
DE102018205362B4 (de) 2018-04-10 2020-03-26 Zf Friedrichshafen Ag Spindelantrieb, Aktuator mit einem Spindelantrieb und Verwendung
DE102018208200A1 (de) * 2018-05-24 2019-11-28 Zf Friedrichshafen Ag Aktuator mit einem Spindelantrieb sowie steer-by-wire-Lenkung
DE102018208199A1 (de) * 2018-05-24 2019-11-28 Zf Friedrichshafen Ag Aktuator mit einem Spindelantrieb sowie steer-by-wire Lenkung
DE102018116867A1 (de) * 2018-07-12 2020-01-16 Schaeffler Technologies AG & Co. KG Elektromechanischer Aktuator und Hinterachslenkung
DE102018126475A1 (de) * 2018-10-24 2020-04-30 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Betätigungsmechanismus, Kupplungssteller und Getriebesteller mit verbessertem Vibrationsverhalten
DE102019200858A1 (de) 2019-01-24 2020-07-30 Zf Friedrichshafen Ag Spindelantrieb einer steer-by-wire-Lenkung für ein Kraftfahrzeug, Aktuator mit einem Spindelantrieb sowie steer-by-wire-Lenkung für ein Kraftfahrzeug
DE102019218637A1 (de) * 2019-11-29 2021-06-02 Witte Automotive Gmbh Spindelantrieb und Verfahren zur Montage eines Spindelantriebs
DE102020204832B4 (de) 2020-04-16 2022-08-11 Witte Automotive Gmbh Spindelantrieb

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH386809A (de) * 1960-07-20 1965-01-15 Oerlikon Buehrle Ag Vorrichtung zur Spielregulierung an ausziehbarer Werkzeugmaschinenspindel
US3857547A (en) * 1974-03-18 1974-12-31 Templeton Kenly & Co Automatically compensating jack construction
US20040250637A1 (en) * 2003-05-26 2004-12-16 Yutaka Hosokai Anti-backlash nut
WO2005036026A2 (fr) * 2003-09-30 2005-04-21 Tritex Corporation Ensemble ecrou anti-jeu pour vis-mere
DE102014206934A1 (de) 2014-04-10 2015-10-15 Zf Friedrichshafen Ag Stellmotor

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
DE857304C (de) * 1951-04-08 1952-11-27 Fritz Werner Ag Vorrichtung zur Aufhebung des axialen Spiels bei Spindelantrieben
DE1693926U (de) * 1953-12-22 1955-02-24 Hagenuk Hanseatische Appbau Ge Hubspindel.
DE19836683A1 (de) * 1998-08-13 2000-02-17 Schaeffler Waelzlager Ohg Gewindetrieb
DE102010021536B4 (de) * 2010-05-19 2024-05-23 Sbs-Feintechnik Gmbh & Co. Kg Spindelantrieb

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH386809A (de) * 1960-07-20 1965-01-15 Oerlikon Buehrle Ag Vorrichtung zur Spielregulierung an ausziehbarer Werkzeugmaschinenspindel
US3857547A (en) * 1974-03-18 1974-12-31 Templeton Kenly & Co Automatically compensating jack construction
US20040250637A1 (en) * 2003-05-26 2004-12-16 Yutaka Hosokai Anti-backlash nut
WO2005036026A2 (fr) * 2003-09-30 2005-04-21 Tritex Corporation Ensemble ecrou anti-jeu pour vis-mere
DE102014206934A1 (de) 2014-04-10 2015-10-15 Zf Friedrichshafen Ag Stellmotor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112696473A (zh) * 2020-12-16 2021-04-23 武汉滨湖电子有限责任公司 一种调平撑腿

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Publication number Publication date
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