EP3538421A1 - Zahnstangenlenkung mit einteiligem getriebegehäuse - Google Patents
Zahnstangenlenkung mit einteiligem getriebegehäuseInfo
- Publication number
- EP3538421A1 EP3538421A1 EP17797613.1A EP17797613A EP3538421A1 EP 3538421 A1 EP3538421 A1 EP 3538421A1 EP 17797613 A EP17797613 A EP 17797613A EP 3538421 A1 EP3538421 A1 EP 3538421A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steering
- pinion
- rack
- shaft
- housing
- 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- Withdrawn
Links
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
- B62D5/0403—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by constructional features, e.g. common housing for motor and gear box
-
- 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
-
- 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
-
- 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
- B62D5/0454—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
- F16H57/02—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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02034—Gearboxes combined or connected with electric machines
-
- 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
Definitions
- a rack and pinion drive unit which comprises a composite of at least two parts housing, wherein a portion for the pinion housing and a portion for the rack housing are provided, which are joined together and connected to a single housing.
- This design proves to be problematic in that a very accurate fit of the housing halves is needed. A slight distortion of the housing parts causes a gap is formed in which collects dirt.
- a rack and pinion steering system for a motor vehicle comprising a connected to a steering shaft pinion shaft having a steering pinion which meshes with a displaceably mounted in a transmission housing along a longitudinal axis rack for pivoting steerable wheels, and with an electric motor, the pinion shaft via a reduction gear, provided, wherein the rack, pinion shaft and the reduction gear form an overall assembly, wherein the overall assembly is received in the transmission housing, and wherein the transmission housing is integrally formed. Due to the one-piece design of the transmission housing can be dispensed with a seal between the steering gear housing and drive gear housing.
- the reduction gear is a worm gear, wherein a worm wheel of the worm gear concentrically surrounds the pinion shaft and is rotatably connected thereto.
- FIG. 2 a three-dimensional view of the steering gear from FIG. 1,
- Fig. 3 a first spatial representation of the housing of the steering gear from FIG. 1
- Fig. 5 a perspective view of a housing according to a second embodiment, as well
- a steering shaft 2 serves to transmit the steering movements carried out by a driver of the motor vehicle on the steering wheel 3 to a rack-and-pinion steering gear 4.
- the rack-and-pinion steering gear 4 converts the rotational movement of the steering shaft 2 into a movement of a toothed rack 5, as a result of which a wheel 7 articulated on a track rod 6 the vehicle performs a steering angle.
- the rotational movement of the steering shaft 2 is converted via a steering pinion 8, which meshes with the rack 5 in a toothed region, in a translational movement of the rack 5.
- the rack 5 is mounted axially movable in a first portion of a transmission housing 10.
- a reduction gear 11 and an electric servo motor 12 are arranged on a steering shaft remote side of the rack 5.
- the servomotor 12 acts on the reduction gear 11 on the steering pinion 8 for steering assistance.
- the steering pinion 8 is arranged on a pinion shaft 80, which has a steering shaft close end 130 and a steering shaft distal end 1300.
- the end near the steering shaft 130 is connected to a torsion bar 115, as shown in FIG. 6, which connects the pinion shaft 80 to an input shaft 113, which, in turn, is non-rotatably connected to the steering wheel 3 via the steering shaft 2.
- the torsion bar 115 causes a relative rotation between the input shaft 113 and the pinion shaft 80 as a function of the steering wheel torque.
- the torsion bar 115 is part of a torque sensor 13 which determines the steering torque applied to the steering wheel 3 to actuate the electric motor 12.
- the pinion shaft 80 is rotatably mounted in a bearing 14 in a second portion of the transmission case 10 between the steering pinion 8 and the end remote from the shaft shaft 1300. Between pinion 8 and bearing 14, the pinion shaft 80 has a taper 17 whose diameter is smaller than that of the steering pinion 8 and a bearing seat 140 of the bearing 14 or as the remaining diameter of the pinion shaft 80.
- the taper 17 closes be preferably directly to the steering pinion 8.
- a worm wheel 15 of the reduction gear 11 is provided, that the pinion shaft 80 concentrically surrounds and is rotatably connected thereto.
- the electric servomotor 12 drives a worm shaft 16, which meshes with the worm wheel 15 arranged on the pinion shaft 80.
- the worm shaft 16 and the worm wheel 15 are surrounded by third and fourth portions of the transmission case 10.
- the transmission housing 10 also receives the torque sensor 13 in a fifth section.
- the servomotor can also be mounted on the underside of the steering gear, which is particularly space-saving. As the bottom is the side of the steering gear 4 in the direction of the road 70 to understand.
- the taper of the pinion shaft simplifies the assembly of the steering gear so that the rack 5 can be pushed past the pinion shaft 80 in the region of the taper 17. After the rack 5 is received in the transmission housing 10, the pinion shaft 80 is pressed down in the direction of the roadway 70 to bring the steering pinion 8 in engagement with the teeth 9 of the rack 5.
- the worm shaft 16, which meshes with the worm wheel 15, is provided in the third section 103.
- the third section 103 is almost parallel to the first section 101.
- the third section 103 can transition into the fifth section 105, so that the third section with the reduction gear lies above the rack 5 and thus further away from the roadway 70 is arranged.
- the sealing point between the third and fourth sections 103, 104, the drive gear housing, and the first and second sections 101, 102, the steering gear housing is eliminated. Due to the arrangement of the reduction gear below the rack, the contamination-sensitive sensor area of the torque sensor is spatially separated from the greased area of the reduction gear.
- a one-piece housing is very cost-effective to produce and it brings significant weight savings.
- the transmission housing 10 is preferably a cast housing made of aluminum or magnesium or plastic.
- FIG. 5 shows a further embodiment of the transmission housing 10.
- the reduction gear 11 is arranged in the region of the torque sensor 13 or in the immediate vicinity of the torque sensor 13 and is in operative connection with the pinion shaft between the input shaft and the steering pinion.
- the one-piece gear housing 10 has both the drive gear housing and the steering gear housing.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Power Steering Mechanism (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016013270.1A DE102016013270A1 (de) | 2016-11-09 | 2016-11-09 | Zahnstangenlenkung mit einteiligem Getriebegehäuse |
PCT/EP2017/078540 WO2018087114A1 (de) | 2016-11-09 | 2017-11-08 | Zahnstangenlenkung mit einteiligem getriebegehäuse |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3538421A1 true EP3538421A1 (de) | 2019-09-18 |
Family
ID=60320872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17797613.1A Withdrawn EP3538421A1 (de) | 2016-11-09 | 2017-11-08 | Zahnstangenlenkung mit einteiligem getriebegehäuse |
Country Status (5)
Country | Link |
---|---|
US (1) | US20190283797A1 (de) |
EP (1) | EP3538421A1 (de) |
CN (1) | CN109923026A (de) |
DE (1) | DE102016013270A1 (de) |
WO (1) | WO2018087114A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019212213A1 (de) | 2019-08-14 | 2021-02-18 | Volkswagen Aktiengesellschaft | Zahnstangen-Lenkung sowie Kraftfahrzeug mit einer solchen Zahnstangen-Lenkung |
DE102019214406A1 (de) * | 2019-09-20 | 2021-03-25 | Robert Bosch Gmbh | Lenkvorrichtung und Verfahren zur Herstellung einer Lenkvorrichtung |
US11345396B2 (en) * | 2020-02-18 | 2022-05-31 | Zf Active Safety And Electronics Us Llc | Modular power steering apparatus |
DE102020202027A1 (de) * | 2020-02-18 | 2021-08-19 | Thyssenkrupp Ag | Lenkgetriebe für eine Lenkung eines Kraftfahrzeugs |
CN111776061A (zh) * | 2020-06-19 | 2020-10-16 | 安徽中鼎橡塑制品有限公司 | 一种转向器塑料壳体 |
CN111959602A (zh) * | 2020-08-26 | 2020-11-20 | 武汉嘉迅汽车配件有限公司 | 齿轮齿条传动机构壳体及机动车齿轮齿条转向系统 |
USD937159S1 (en) * | 2020-09-19 | 2021-11-30 | Ray Shane Jumper | Steering rack |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE233657C (de) | ||||
GB1422122A (en) | 1972-07-18 | 1976-01-21 | Cam Gears Ltd | Rack and pinion units |
JP5016451B2 (ja) * | 2007-11-16 | 2012-09-05 | カヤバ工業株式会社 | パワーステアリング装置及びその製造方法 |
DE102011001217A1 (de) | 2011-03-11 | 2012-09-13 | Zf Lenksysteme Gmbh | Lenksystem in einem Fahrzeug |
JP5829133B2 (ja) * | 2012-01-13 | 2015-12-09 | 日立オートモティブシステムズステアリング株式会社 | パワーステアリング装置 |
JP5801232B2 (ja) * | 2012-03-22 | 2015-10-28 | 日立オートモティブシステムズステアリング株式会社 | パワーステアリング装置および電動パワーステアリング装置用ハウジング |
JP6305799B2 (ja) * | 2014-03-19 | 2018-04-04 | 日立オートモティブシステムズ株式会社 | パワーステアリング装置 |
JP6129774B2 (ja) * | 2014-03-24 | 2017-05-17 | 株式会社ショーワ | パワーステアリング装置 |
-
2016
- 2016-11-09 DE DE102016013270.1A patent/DE102016013270A1/de not_active Withdrawn
-
2017
- 2017-11-08 CN CN201780068863.4A patent/CN109923026A/zh active Pending
- 2017-11-08 US US16/344,551 patent/US20190283797A1/en not_active Abandoned
- 2017-11-08 WO PCT/EP2017/078540 patent/WO2018087114A1/de unknown
- 2017-11-08 EP EP17797613.1A patent/EP3538421A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
US20190283797A1 (en) | 2019-09-19 |
WO2018087114A1 (de) | 2018-05-17 |
CN109923026A (zh) | 2019-06-21 |
DE102016013270A1 (de) | 2018-05-09 |
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Legal Events
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Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 20190611 |
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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 |
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AX | Request for extension of the european patent |
Extension state: BA ME |
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DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: THYSSENKRUPP AG Owner name: THYSSENKRUPP PRESTA AG |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: THYSSENKRUPP AG Owner name: THYSSENKRUPP PRESTA AG |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BAUMGARTNER, PATRICK Inventor name: STECK, PHILIPPE |
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18D | Application deemed to be withdrawn |
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