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WO2002016187A1 - Direction, en particulier direction hydraulique a cremaillere - Google Patents

Direction, en particulier direction hydraulique a cremaillere Download PDF

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Publication number
WO2002016187A1
WO2002016187A1 PCT/EP2001/009256 EP0109256W WO0216187A1 WO 2002016187 A1 WO2002016187 A1 WO 2002016187A1 EP 0109256 W EP0109256 W EP 0109256W WO 0216187 A1 WO0216187 A1 WO 0216187A1
Authority
WO
WIPO (PCT)
Prior art keywords
gear
rotary valve
steering according
steering
valve
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/EP2001/009256
Other languages
German (de)
English (en)
Inventor
Martin Budaker
Helmut Schwarzkopf
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 Automotive Steering GmbH
Original Assignee
ZF Lenksysteme 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 ZF Lenksysteme GmbH filed Critical ZF Lenksysteme GmbH
Priority to AU2002213851A priority Critical patent/AU2002213851A1/en
Publication of WO2002016187A1 publication Critical patent/WO2002016187A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16—Steering columns
    • B62D1/20—Connecting steering column to steering gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16—Steering columns
    • 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
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/08—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of steering valve used
    • B62D5/083—Rotary valves

Definitions

  • the invention relates to a steering, in particular rack and pinion hydraulic steering, with a rotary valve surrounded by a valve housing and an angular gear.
  • Flanged angular gears are also known from practice.
  • the disadvantage here is for the connection between the steering spindle and the bevel gear
  • a coupling sleeve is required to compensate for the tolerance of the axis offsets.
  • Special gears are required for the connection point.
  • the use of a flanged angular gear disadvantageously results in corresponding additional costs.
  • the toothing cannot be designed without play, so that noise pollution cannot be prevented.
  • the present invention has for its object to provide a steering, in particular a ' rack-and-pinion hydraulic steering, with an angular gear, which ensures a play-free connection between the steering spindle and the angular gear, is inexpensive to manufacture and install, requires little installation space and none during installation Handling of additional components required.
  • the bevel gear occurs when the does not appear as an additional component for the user, for example the vehicle manufacturer.
  • the bevel gear requires no additional installation space. As has been found in tests, handling and installation are possible in a simple, cost-saving and time-saving manner.
  • the arrangement of the driven gear of the angular gear, directly or via a fastening member on the rotary valve, allows advantageous freedom from play in the steering train. Tolerance compensation due to axis offsets is therefore not necessary.
  • the elimination of a connection point leads to significant cost savings and improved functionality.
  • the vehicle-specific deflection of the steering train can thus be implemented in a particularly simple manner. It is also particularly advantageous that the assembly of the hydraulic rack-and-pinion steering provided for the user can be carried out in the same way as the assembly of hydraulic rack-and-pinion steering systems without an angular gear. This enables a particularly efficient, simplified and therefore cost-saving installation.
  • the driven wheel and / or the rotary valve is arranged on a torsion bar or axially secured by means of the fastening member.
  • a fastening or an axial securing of the driven wheel and the rotary valve on a torsion bar can be produced in a particularly simple and inexpensive manner with the fastening member. This creates a heavy-duty, inexpensive and simple connection between the driven gear, the rotary valve and the torsion bar, which requires only one fastening element.
  • the driven wheel and the rotary slide valve can be provided with coordinated toothings on their contact surfaces.
  • the toothing between the driven wheel and the rotary valve results in a particularly advantageous transmission of the steering forces.
  • the driven gear is connected to the rotary valve in a rotationally fixed manner.
  • a non-rotatable connection of the driven wheel to the rotary valve means that separate storage of the driven wheel is unnecessary.
  • the driven gear is thus easily supported by the rotary valve.
  • the rotary valve and the driven wheel are formed in one piece.
  • Such a configuration of the rotary valve and The driven wheel has proven to be particularly cost-effective, especially for large quantities.
  • the rotary valve and the driven wheel thus form a unit and can be designed, for example, as an extruded part. Manufacturing from a forged blank is also possible in a simple manner.
  • the driven wheel and a drive wheel of the angular gear j are designed as bevel gears.
  • a gear ratio of 1: 1 can advantageously be realized.
  • a deflection of the steering train by 90 ° is also simple and inexpensive.
  • FIG. 1 shows a section through a rack and pinion hydraulic steering system according to the invention in a first embodiment
  • Fig. 2 shows a section through a rack and pinion hydraulic steering in a second embodiment.
  • the toothed rack ⁇ hydraulic steering has a valve housing 1, in which a torsion bar 2 and a rotary valve 3 of a steering valve 4 are arranged in a known manner.
  • An angular gear 5 with an output gear 6 and a drive gear 7 is also integrated in the valve housing 1.
  • the driven gear and the drive gear are designed as bevel gear 6 on the output side and bevel gear 7 on the drive side.
  • the bevel gear 6 on the output side of the angular gear 5 forms a structural unit with the rotary valve 3 and is supported by two bearing points 8 and 9.
  • the bearing 8 is located in the area of the bevel gear 5 and the bearing 9 in the area of a rack, not shown.
  • the drive-side bevel gear 7 is connected to a steering spindle 10, which transmits the forces from a steering wheel (not shown).
  • a deflection can be realized in the smallest of spaces.
  • the connection between the bevel gear 6 on the output side and the rotary slide 3 can be made directly and / or via a fastening member 11.
  • the fastening member is designed as a cylindrical pin 11.
  • the connection between the bevel gear 6 on the output side and the rotary valve 3 can be made with the same cylindrical pin 11, which is also used for fastening the torsion bar 2.
  • the bevel gear 6 on the output side and the rotary valve 3 are thus arranged or axially secured to the torsion bar 2 in a simple manner by the cylindrical pin 11.
  • the torsion bar 2 is supported by the bearing point 8.
  • the rotary slide 3 and the bevel gear 6 on the output side are also indirectly supported by the torsion bar 2.
  • the rotary valve 3 and the bevel gear 6 on the output side are thus supported at the bearing 8 facing the angular gear 5 via the torsion bar 2.
  • the rotary slide valve 3, the bevel gear 6 on the output side and the rotary rod 2 can also be supported at the end facing the angular gear 5 by means of a bearing point 8 arranged between the valve housing 1 and the rotary slide valve 3.
  • a bearing point 8 arranged between the valve housing 1 and the rotary slide valve 3.
  • the bearing point 8 is arranged on the side of the bevel gear 6 on the output side facing away from the angular gear 5.
  • the torsion bar can thus advantageously 2 can be made shorter and therefore cheaper.
  • the bevel gear 6 on the output side is connected in a rotationally fixed manner to the rotary valve 3.
  • the bevel gear 6 on the output side is independent of the selected bearing point 8 by the rotary valve
  • the bevel gear 6 on the output side and the rotary slide valve 3 are provided on their contact surfaces with coordinated toothings 12.
  • the toothing 12, particularly in combination with the cylindrical pin 11, enables an advantageous and play-free transmission of the steering forces from the bevel gear 6 on the output side to the rotary valve 3.
  • the drive wheel 7 is introduced in the direction of the axis of a steering spindle 10 through an opening in the valve housing 1
  • the driven wheel (6) is introduced in the direction of the axis of the rotary valve 3 through another opening in the valve housing 1 into the valve housing 1 so bring the two wheels 6, 7 into the common engagement position.
  • the rotary slide valve 3 and the bevel gear 6 on the output side can be formed in one piece.
  • Such an embodiment has proven to be particularly suitable for large quantities.
  • the rotary valve 3 and the bevel gear 6 on the output side thus form a unit which can be manufactured and assembled in a particularly simple manner.
  • Such a unit can be designed, for example, as an extruded part or can be produced from a forging blank. Of course, other advantageous manufacturing and production processes are also possible.
  • the bearing point 8 already described and shown in FIG. 2 has been found to be particularly suitable for this purpose.
  • a design of the bevel gear 5 with bevel gears 6, 7 has proven to be particularly advantageous with regard to the generally desired advantageous implementation 1: 1 and also the deflection shown by 90 °.
  • other configurations are also possible, for example with friction wheels or a worm gear.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Actuator (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

L'invention concerne une direction, en particulier une direction hydraulique à crémaillère, qui comporte un distributeur rotatif (3), qui est entouré d'un corps de soupape (1), ainsi qu'un engrenage angulaire (5), qui est intégré dans ledit corps de soupape (1). La roue de sortie (6) de l'engrenage angulaire (5) peut être montée sur le distributeur rotatif (3) directement et/ou par l'intermédiaire d'un élément de fixation (11).
PCT/EP2001/009256 2000-08-21 2001-08-10 Direction, en particulier direction hydraulique a cremaillere Ceased WO2002016187A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002213851A AU2002213851A1 (en) 2000-08-21 2001-08-10 Steering gear, especially hydraulic rack-and-pinion steering gear

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000140839 DE10040839A1 (de) 2000-08-21 2000-08-21 Lenkung, insbesondere Zahnstangen-Hydrolenkung
DE10040839.7 2000-08-21

Publications (1)

Publication Number Publication Date
WO2002016187A1 true WO2002016187A1 (fr) 2002-02-28

Family

ID=7653161

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/009256 Ceased WO2002016187A1 (fr) 2000-08-21 2001-08-10 Direction, en particulier direction hydraulique a cremaillere

Country Status (3)

Country Link
AU (1) AU2002213851A1 (fr)
DE (1) DE10040839A1 (fr)
WO (1) WO2002016187A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2353984A1 (de) * 1973-10-27 1975-05-07 Zahnradfabrik Friedrichshafen Lenkgetriebe, insbesondere fuer kraftfahrzeuge
DE2829895A1 (de) * 1978-07-07 1980-01-17 Volkswagenwerk Ag Winkelgetriebe fuer eine fahrzeuglenkung
DE3337836A1 (de) * 1982-11-15 1984-05-17 Trw Inc., Cleveland, Ohio Servolenkeinrichtung
DE19541749C1 (de) * 1995-11-09 1997-05-22 Daimler Benz Ag Servolenkung für Kraftfahrzeuge
JP2000072012A (ja) * 1998-08-31 2000-03-07 Bosch Braking Systems Co Ltd トルク伝達方向変換手段付き油圧制御バルブ

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2955668A (en) * 1958-09-16 1960-10-11 Ford Motor Co Power steering mechanism
GB1314309A (en) * 1972-03-21 1973-04-18 Adwest Eng Ltd Power-assisted rack-and-pinion steering mechanism for motor vehicle
DE3918987A1 (de) * 1988-06-15 1989-12-21 Zahnradfabrik Friedrichshafen Hilfskraftlenkung fuer kraftfahrzeuge
DE19833438A1 (de) * 1998-07-24 2000-01-27 Zahnradfabrik Friedrichshafen Drehschieberventil für Hilfskraftlenkungen von Kraftfahrzeugen
DE19840625C2 (de) * 1998-09-05 2002-07-04 Daimler Chrysler Ag Lenkventilanordnung eines hydraulischen Lenksystems

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2353984A1 (de) * 1973-10-27 1975-05-07 Zahnradfabrik Friedrichshafen Lenkgetriebe, insbesondere fuer kraftfahrzeuge
DE2829895A1 (de) * 1978-07-07 1980-01-17 Volkswagenwerk Ag Winkelgetriebe fuer eine fahrzeuglenkung
DE3337836A1 (de) * 1982-11-15 1984-05-17 Trw Inc., Cleveland, Ohio Servolenkeinrichtung
DE19541749C1 (de) * 1995-11-09 1997-05-22 Daimler Benz Ag Servolenkung für Kraftfahrzeuge
JP2000072012A (ja) * 1998-08-31 2000-03-07 Bosch Braking Systems Co Ltd トルク伝達方向変換手段付き油圧制御バルブ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 06 22 September 2000 (2000-09-22) *

Also Published As

Publication number Publication date
AU2002213851A1 (en) 2002-03-04
DE10040839A1 (de) 2002-03-07

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