WO2012138051A1 - Dispositif de servodirection de type transmission - Google Patents

Dispositif de servodirection de type transmission Download PDF

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Publication number
WO2012138051A1
WO2012138051A1 PCT/KR2012/001094 KR2012001094W WO2012138051A1 WO 2012138051 A1 WO2012138051 A1 WO 2012138051A1 KR 2012001094 W KR2012001094 W KR 2012001094W WO 2012138051 A1 WO2012138051 A1 WO 2012138051A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
support
worm shaft
tilt
worm
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
PCT/KR2012/001094
Other languages
English (en)
Korean (ko)
Inventor
김영주
이영두
손중락
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.)
Estra Automotive Systems Co Ltd
Original Assignee
Estra Automotive Systems Co Ltd
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 Estra Automotive Systems Co Ltd filed Critical Estra Automotive Systems Co Ltd
Publication of WO2012138051A1 publication Critical patent/WO2012138051A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • F16H55/24—Special devices for taking up backlash
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00—Other features of vehicle sub-units
    • B60Y2306/09—Reducing noise
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/40—Actuators for moving a controlled member
    • B60Y2400/405—Electric motors actuators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/40—Actuators for moving a controlled member
    • B60Y2400/418—Power assistance, e.g. servo-motors
    • B60Y2400/4187—Servo-motors, e.g. electric or fluidic with feedback control
    • 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

Definitions

  • a worm gear is installed on a shaft connected to an output shaft of a motor, and a worm wheel is installed on a steering shaft so that both of the gears mesh with each other so that the driving force of the motor can be transmitted to the steering shaft.
  • the present invention has been made to solve the problems described above, the problem to be solved by the present invention is to increase the backlash due to the clearance of the gears or manufacturing tolerances in the column-type electric power steering device and vibrations It is to provide an electric power steering device that can effectively block the generation of noise and furthermore to block the shock generated by the wheel transmitted.
  • the electric power steering apparatus may further include a support bearing damping mechanism that provides a damping force to the support bearing and the worm shaft.
  • the auxiliary damper may include an elastic body formed of an elastic material and supporting the support bearing in the axial direction and the radial direction of the worm shaft, and a case formed to surround the outer side of the elastic body.
  • FIG. 1 is a perspective view of a power steering apparatus according to an embodiment of the present invention.
  • FIG. 3 is a partial cross-sectional view taken along the line III-III of FIG. 1.
  • the worm shaft 10 is driven by the motor coupling 30 to reduce shock and vibration between the worm shaft 10 and the output shaft 21 of the motor 20 and to reduce the tolerance. It may be concentrically connected to the output shaft (21) of.
  • the motor coupling 30 may include a first member 31 fastened to the output shaft 21 of the motor 20 and a first shaft 31 fastened to the worm shaft 10. It may include the two members 33 and the connecting member 35 interposed therebetween.
  • the first member 31 may be splined to the output shaft 21 to rotate with the output shaft 21 of the motor 20, and the second member 33 to rotate with the worm shaft 10. It may be splined to the worm shaft 10.
  • the connecting member 35 may be fastened to the first and second members 31 and 33 so as to rotate together with the first and second members 31 and 33, respectively.
  • the first member 31 includes a through hole 31b into which the output shaft 21 of the motor 20 is inserted and splined thereto, and the through hole through which the worm shaft 10 is inserted into and splined into the second member 33.
  • 33b is provided.
  • the output shaft 21 of the motor 20 is inserted into the through hole 31b of the first member 31 so as to rotate together with the first member 31 and splined thereto, and the worm shaft 10 is connected to the second member 33. It is inserted and splined into the through hole 33b of the second member 33 so as to rotate together. Accordingly, the output shaft 21, the motor coupling 30, and the worm shaft 10 of the motor 20 are connected to each other to rotate together.
  • the tilt bearing assembly is disposed on the side away from the motor 20 around the worm gear 11 of the portion of the worm shaft 10 is fastened to the worm shaft 10 (tilt bearing assembly) ) 100.
  • the bearing case 120 may be formed to have a substantially ring shape, and the outer circumferential surface of the bearing case 120 is provided with a depression 122 formed along the circumferential direction. As shown in FIG. 3, the damping ring 150 is inserted into the depression 122 of the bearing case 120.
  • the locking jaw 121 may be formed in plural along the inner circumferential surface of the bearing case 120 in a rib shape. Accordingly, the tilt bearing 110 can be easily assembled.
  • a plurality of protrusions 152 may be formed along the outer circumferential surface of the damping ring 150 in the circumferential direction. As the protrusion 152 is formed on the outer circumferential surface of the damping ring 150, the assembly and adjustment of the tilt bearing 110 can be facilitated and the manufacturing tolerances of the related components can be absorbed.
  • the present invention relates to an electric power steering apparatus and can be applied to a steering apparatus of a vehicle, thereby having industrial applicability.

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)
  • Gear Transmission (AREA)

Abstract

La présente invention concerne un dispositif de servodirection de type transmission comportant: un moteur ; un arbre à vis sans fin équipé d'un engrenage à vis sans fin, et connecté à un axe de sortie pour une rotation intégrale avec l'axe de sortie du moteur ; une roue à vis sans fin couplée à un arbre de direction, et assemblée par soudure autogène sur l'engrenage à vis sans fin ; un palier de support placé sur le côté proche du moteur avec l'engrenage à vis sans fin de l'arbre à vis sans fin comme centre, pour être couplé à l'arbre à vis sans fin ; un ensemble de palier à pivot placé sur le côté éloigné du moteur avec l'engrenage à vis sans fin de l'arbre à vis sans fin comme centre, pour être couplé à l'arbre à vis sans fin ; et un mécanisme d'inclinaison appliquant une force à l'ensemble de palier à pivot pour entraîner l'inclinaison de l'arbre à vis sans fin pour le pousser vers la roue à vis sans fin.
PCT/KR2012/001094 2011-04-08 2012-02-14 Dispositif de servodirection de type transmission Ceased WO2012138051A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2011-0032865 2011-04-08
KR1020110032865A KR101095979B1 (ko) 2011-04-08 2011-04-08 전동식 파워 스티어링 장치

Publications (1)

Publication Number Publication Date
WO2012138051A1 true WO2012138051A1 (fr) 2012-10-11

Family

ID=45506577

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2012/001094 Ceased WO2012138051A1 (fr) 2011-04-08 2012-02-14 Dispositif de servodirection de type transmission

Country Status (2)

Country Link
KR (1) KR101095979B1 (fr)
WO (1) WO2012138051A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106687358A (zh) * 2014-09-26 2017-05-17 日本精工株式会社 电动式助力转向装置
WO2019017397A1 (fr) * 2017-07-19 2019-01-24 日本精工株式会社 Réducteur de vitesse à vis sans fin
CN110040076A (zh) * 2019-05-23 2019-07-23 广州市海显电子有限公司 一种停车指示牌、车载液晶电视的电动手动一体翻转装置

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103786779B (zh) * 2012-10-26 2016-04-27 宁波如意股份有限公司 一种双组脉冲输出电转向器
KR102254485B1 (ko) * 2014-09-25 2021-05-21 현대모비스 주식회사 베어링 부시
KR102189374B1 (ko) * 2014-10-30 2020-12-14 현대모비스 주식회사 차량용 전동 스티어링 장치의 안티래틀장치
KR102281674B1 (ko) * 2015-01-12 2021-07-27 주식회사 만도 자동차의 감속기
KR102321097B1 (ko) * 2015-09-02 2021-11-04 현대모비스 주식회사 전동식 조향장치
KR102611629B1 (ko) * 2019-05-07 2023-12-08 현대모비스 주식회사 안티래틀장치
KR102208240B1 (ko) * 2019-07-30 2021-01-28 남양넥스모 주식회사 전동식 파워 스티어링의 조타 보조 장치
DE102022116984A1 (de) * 2022-07-07 2024-01-18 Schaeffler Technologies AG & Co. KG Lageranordnung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003261041A (ja) * 2002-03-06 2003-09-16 Koyo Seiko Co Ltd 電動式パワーステアリング装置
KR100535931B1 (ko) * 2000-05-18 2005-12-12 코요 세이코 주식회사 전동식조향장치
KR100755909B1 (ko) * 2006-07-24 2007-09-06 주식회사 만도 전기식 조향장치의 유격보상구조
KR100804476B1 (ko) * 2003-01-08 2008-02-20 주식회사 만도 전동식 파워 스티어링 시스템의 웜축 유격보상구조
KR20110009274A (ko) * 2009-07-22 2011-01-28 주식회사 만도 전동식 동력 보조 조향장치의 감속기

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100535931B1 (ko) * 2000-05-18 2005-12-12 코요 세이코 주식회사 전동식조향장치
JP2003261041A (ja) * 2002-03-06 2003-09-16 Koyo Seiko Co Ltd 電動式パワーステアリング装置
KR100804476B1 (ko) * 2003-01-08 2008-02-20 주식회사 만도 전동식 파워 스티어링 시스템의 웜축 유격보상구조
KR100755909B1 (ko) * 2006-07-24 2007-09-06 주식회사 만도 전기식 조향장치의 유격보상구조
KR20110009274A (ko) * 2009-07-22 2011-01-28 주식회사 만도 전동식 동력 보조 조향장치의 감속기

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106687358A (zh) * 2014-09-26 2017-05-17 日本精工株式会社 电动式助力转向装置
EP3173313A4 (fr) * 2014-09-26 2017-11-08 NSK Ltd. Dispositif de direction assistée électrique
US10183693B2 (en) 2014-09-26 2019-01-22 Nsk Ltd. Electric power steering device
CN106687358B (zh) * 2014-09-26 2019-05-31 日本精工株式会社 电动式助力转向装置
WO2019017397A1 (fr) * 2017-07-19 2019-01-24 日本精工株式会社 Réducteur de vitesse à vis sans fin
CN110040076A (zh) * 2019-05-23 2019-07-23 广州市海显电子有限公司 一种停车指示牌、车载液晶电视的电动手动一体翻转装置

Also Published As

Publication number Publication date
KR101095979B1 (ko) 2011-12-19

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