EP0232414A1 - Element de transmission rotatif pour mecanisme de direction, notamment pour vehicules a moteur - Google Patents

Element de transmission rotatif pour mecanisme de direction, notamment pour vehicules a moteur

Info

Publication number
EP0232414A1
EP0232414A1 EP19860905761 EP86905761A EP0232414A1 EP 0232414 A1 EP0232414 A1 EP 0232414A1 EP 19860905761 EP19860905761 EP 19860905761 EP 86905761 A EP86905761 A EP 86905761A EP 0232414 A1 EP0232414 A1 EP 0232414A1
Authority
EP
European Patent Office
Prior art keywords
drive component
driving part
driving
component according
driven
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.)
Pending
Application number
EP19860905761
Other languages
German (de)
English (en)
Inventor
Werner Breitweg
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.)
ZF Friedrichshafen AG
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 EP0232414A1 publication Critical patent/EP0232414A1/fr
Pending legal-status Critical Current

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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/02—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like
    • F16D1/027—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like non-disconnectable, e.g. involving gluing, welding or the like
    • 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

Definitions

  • Rotatable drive component for a steering gear in particular for motor vehicles
  • the invention relates to a rotatable drive component for a steering gear, in particular for motor vehicles, according to the preamble of claim 1.
  • Such a drive component is known from DE-OS 28 04 094.
  • a driving part in the form of a pinion is connected to a driven part in the form of a valve sleeve via an annular coupling member.
  • An end portion of the coupling member is inserted over an end portion of the pinion.
  • the coupling member is connected by teeth arranged in its interior, which are in engagement with the teeth of the end section of the pinion, and is connected to the pinion by means of an adhesive connection by brazing.
  • a corresponding connection is provided between the coupling member and the valve sleeve.
  • the invention is based on the object of designing a drive component in such a way that cheaper and simpler production is possible, in particular in the direction of automatic production.
  • This object is achieved by the drive component characterized in claim 1.
  • the two parts can be connected particularly advantageously by kneading round if the driven part has a smooth receiving bore which matches the outer diameter of the driving part.
  • an essentially cylindrical part of the driven part which contains the receiving bore, is positively connected to the transmission profile of the driving part, which can have a reduced outer diameter at one end.
  • Figure 1 shows a driving part in the form of a pinion or a worm gear.
  • Figure 2 shows the end piece of a driven part before assembly.
  • FIG. 4 shows a section through the assembly of FIG. 3 along the line IV-IV;
  • 5 shows an exemplary embodiment of a drive component which is composed of a pinion and a valve body;
  • FIG. 6 shows an exemplary embodiment of a drive component which is composed of a steering worm and a valve sleeve
  • FIG. 7 shows an exemplary embodiment of a drive component which consists of a pinion and a steering spindle.
  • a driving part 1 in the form of a pinion of a rack-and-pinion steering system or a worm gear of a recirculating ball steering gear has a transmission profile 2 which extends over the entire axial length of the driving part and is designed as a toothing or as a ball screw. At one end, the transmission profile 2 has a reduced outer diameter 3. There is a groove 4 between the fully formed part of the transmission profile and the end with a reduced outer diameter 3. If the driving part 1 is a sprocket with straight teeth, in which no axial forces occur, and with a small outer diameter, the outer diameter is reduced and the installation of a groove is not necessary. At the other end of the driving part 1, a journal 5 is formed.
  • a driven part 6, which will be described in more detail later, has at one end 7 a central receiving bore 8, the diameter of which corresponds to the outer diameter 3 of the driving part 1.
  • the driven part 6 is essentially cylindrical, the outer diameter 9 in this area being larger in the initial state than the outer diameter of the fully assembled drive component.
  • Fig. 3 the assembly of the driving part 1 with the driven part 6 is shown.
  • the connection of the two parts is initially carried out in that the driven part 6 with his Receiving hole 8 is pushed onto the stepped end of the driving part with the outer diameter 3.
  • the driven part 6 is connected to the driving part 1 in the region of its end 7 by non-cutting cold forming, in particular by kneading.
  • the material of the end 7 of the driven part 6 is pressed into the groove 4 and into the transmission profile 2 in the area of the outer diameter 3, so that there is a positive connection between the two parts.
  • 4 shows a cross section through the finished connection.
  • the transmission profile 2 is designed as a toothing.
  • the driving member is a pinion 10 'skraftlenkung a rack Hilf.
  • the driven part is designed as a valve body 11 which is rotatably mounted in a valve housing 12.
  • two control valves 13 and 14 are arranged parallel to one another, the valve pistons of which can be adjusted by a fork-shaped actuating element 15.
  • the actuating element 15 carries a steering spindle connection 16 and is connected to the valve body 11 by a torsion bar 17.
  • the connection point 18 produced by round kneading serves as a sealing surface on its outer circumference.
  • the driving part is designed as a steering worm 19 of a recirculating ball steering gear.
  • the steering worm 19 is connected to the valve sleeve 20 of a rotary slide valve 21 by kneading.
  • FIG. 7 shows a pinion 10 as the driving part, which is connected by circular kneading to a driven part in the form of a steering spindle 22 of a manual rack and pinion steering gear.
  • the steering spindle 22 has a driving connection 23 at its end facing away from the pinion 10.
  • This example also shows that the production of the drive component from two parts and the connection of the two parts by means of round kneading enables very economical production: one in Large numbers of pinions 10 produced can optionally be combined with steering spindles of different lengths and, where appropriate, with different driving connections Reference numerals

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'élément de transmission ci-décrit se compose d'une partie menante (1) et d'une partie menée (6). La partie menante (1) présente un profil de transmission (2) permettant la conversion du mouvement de rotation de l'élément de transmission en un mouvement de translation d'une partie secondaire du mécanisme de direction. La partie menée (6) est assemblée à la partie menante (1) par formage à froid.
EP19860905761 1985-08-13 1986-08-01 Element de transmission rotatif pour mecanisme de direction, notamment pour vehicules a moteur Pending EP0232414A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
WOPCT/EP85/00413 1985-08-13
EP8500413 1985-08-13

Publications (1)

Publication Number Publication Date
EP0232414A1 true EP0232414A1 (fr) 1987-08-19

Family

ID=8165059

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860905761 Pending EP0232414A1 (fr) 1985-08-13 1986-08-01 Element de transmission rotatif pour mecanisme de direction, notamment pour vehicules a moteur

Country Status (3)

Country Link
EP (1) EP0232414A1 (fr)
DE (1) DE3626101A1 (fr)
WO (1) WO1987001164A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5251521A (en) * 1992-01-31 1993-10-12 Bondhus Corporation TORX-compatible elliptical driver
DE4413101A1 (de) * 1994-04-15 1995-10-19 Abb Management Ag Innengelagerter Abgasturbolader
DE4420746C2 (de) * 1994-06-15 1997-10-02 Trw Fahrwerksyst Gmbh & Co Lenkventil
US5697400A (en) * 1995-06-29 1997-12-16 Trw Fahrwerksysteme Gmbh & Co. Kg Steering valve
DE19913676A1 (de) * 1999-03-25 2000-09-28 Mercedes Benz Lenkungen Gmbh Drehstab für eine Hilfskraftlenkung
EP1746011A4 (fr) * 2004-04-06 2007-11-07 Nsk Ltd Dispositif de commande de courant electrique
WO2013153586A1 (fr) * 2012-04-13 2013-10-17 日本精工株式会社 Mécanisme de transmission de rotation et dispositif de direction assistée électrique

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB137317A (en) * 1918-11-25 1920-05-06 Roger Savon Improved process and connection for assembling metal tubes
US3235953A (en) * 1961-03-17 1966-02-22 Chrysler Corp Method of assembling steering gear
FR1331015A (fr) * 1962-08-03 1963-06-28 élément tubulaire de transmission à cannelures axiales et son procédé d'exécution
GB1236827A (en) * 1967-09-28 1971-06-23 Plastic Metal Products Corp Bolt and method of making the same
FR1581657A (fr) * 1968-07-09 1969-09-19
US3642311A (en) * 1969-05-09 1972-02-15 Gulf Oil Corp Torque-transmitting joint
JPS5221254B2 (fr) * 1971-10-14 1977-06-09
GB1558417A (en) * 1977-02-16 1980-01-03 Adwest Eng Ltd Rotary valve for power-assisted steering mechanism
DE3020749A1 (de) * 1980-05-31 1981-12-10 Fichtel & Sachs Ag, 8720 Schweinfurt Verfahren zur herstellung von kolbenstangen
AT372314B (de) * 1981-07-03 1983-09-26 Supervis Ets Lenkspindel fuer lenkvorrichtungen bei kraftfahrzeugen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8701164A1 *

Also Published As

Publication number Publication date
WO1987001164A1 (fr) 1987-02-26
DE3626101A1 (de) 1987-02-26

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Inventor name: BREITWEG, WERNER