FR2664553A1 - Fitting, to a craft moved by a hydrostatic transmission, of a system for controlling steering by pivoting of the stub axles or by laterally immobilising the wheels, at the driver's will - Google Patents

Fitting, to a craft moved by a hydrostatic transmission, of a system for controlling steering by pivoting of the stub axles or by laterally immobilising the wheels, at the driver's will Download PDF

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Publication number
FR2664553A1
FR2664553A1 FR9009072A FR9009072A FR2664553A1 FR 2664553 A1 FR2664553 A1 FR 2664553A1 FR 9009072 A FR9009072 A FR 9009072A FR 9009072 A FR9009072 A FR 9009072A FR 2664553 A1 FR2664553 A1 FR 2664553A1
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France
Prior art keywords
wheels
self
valves
motors
locking system
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Granted
Application number
FR9009072A
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French (fr)
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FR2664553B1 (en
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Pierre Francois Guy
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Expired - Fee Related 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
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
    • B62D7/14—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
    • B62D7/142—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering specially adapted for particular vehicles, e.g. tractors, carts, earth-moving vehicles, trucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
    • B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
    • B62D11/06—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source
    • B62D11/10—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears
    • B62D11/14—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source
    • B62D11/18—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source the additional power supply being supplied hydraulically

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
  • Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
  • Power Steering Mechanism (AREA)

Abstract

The invention relates to a system allowing an automotive vehicle moved by hydraulic motors to be driven according to the working conditions, by turning the wheels or by skidding the wheels. The invention consists of two circuits (K and L) for supplying hydraulic motors actuating guiding wheels mounted on pivots (B1 - B2 - B3 - B4). These circuits, by virtue of the valves (J1 - J2) make it possible instantaneously, as desired by the driver, to block the left-hand wheels or the right-hand wheels by means of a manipulator (M) without preventing directional control by orientating the stub axles with the aid of a steering wheel and of the ORBITAL distributor (F). This invention may be applied to agricultural or industrial automotive vehicles such as trucks, lifts, loaders with tyres, mechanical diggers and all loading or earthmoving vehicles intended to work in lanes or tight spaces.

Description

La présente invention concerne un dispositif permettant d'alimenter ou de bloquer côté par côté les roues directrices montées sur pivots d'un engin automoteur. The present invention relates to a device for feeding or locking side by side the steered wheels mounted on pivots of a self-propelled machine.

Cette manoeuvre s'effectue au poste de conduite suivant la nécessité du travail à effectuer. This maneuver is carried out at the driving position according to the need for the work to be performed.

Actuellement, il existe deux types d'engins automoteurs à roues. Ceux dont la direction est assurée par pivotement des fusées commandées mécaniquement ou hydrauliquement par un volant de conduite, et ceux dont la direction est obtenue par blocage et ripage des roues côté par côté à l'aide de leviers identiques à ceux qui assurent la direction d'un engin chenillé. Currently, there are two types of self-propelled wheeled vehicles. Those whose direction is ensured by pivoting of rockets controlled mechanically or hydraulically by a steering wheel, and those whose direction is obtained by blocking and shifting the wheels side by side using levers identical to those which ensure the direction of 'a tracked machine.

Le but de la présente invention est d'obtenir, sur un engin, les avantages de conduite des deux systèmes au gré du conducteur. The object of the present invention is to obtain, on a machine, the advantages of driving the two systems at the discretion of the driver.

Le dispositif nouveau est conçu selon le schéma représenté fig. 1. Une pompe hydraulique à débit variable (P) aliment 4 moteurs hydrauliques (1) (2) (3) (4) à L'aide de tuyauteries. The new device is designed according to the diagram shown in fig. 1. A variable flow hydraulic pump (P) feeds 4 hydraulic motors (1) (2) (3) (4) Using piping.

Les moteurs (1) et (2) sont alimentés en parallèle de même que les moteurs (3) et (4). Les moteurs (1) et (3) sont reliés par la tuyauterie (7) sur laquelle est fixée la valve (5). Les moteurs (2) et (4) sont reliés par la tuyauterie (8) sur laquelle est fixée la valve (6). The motors (1) and (2) are supplied in parallel as well as the motors (3) and (4). The motors (1) and (3) are connected by the piping (7) on which the valve (5) is fixed. The motors (2) and (4) are connected by the piping (8) on which the valve (6) is fixed.

Les valves (5) et (6) sont commandées à distance par le manipulateur (11) à l'aide de transmissions à câble, de lignes électriques, de-circuits- fus'huile hydraulique ou d'air comprimé (9) et (10). The valves (5) and (6) are remotely controlled by the manipulator (11) using cable transmissions, electrical lines, hydraulic oil circuits or compressed air (9) and ( 10).

Les valves permettent de couper le circuit (7) ou le circuit (8) ce qui a pour effet de bloquer les moteurs (1) et (3) ou (2) et (4). The valves cut the circuit (7) or the circuit (8) which has the effect of blocking the motors (1) and (3) or (2) and (4).

Le système permet de ne couper qu'un seul circuit à la fois au gré du conducteur. Lorsqu'un circuit est coupé les deux moteurs d'un même côté sont bloqués engendrant le blocage simultané des deux roues correspondantes.  The system allows you to cut only one circuit at a time at the discretion of the driver. When a circuit is cut, the two motors on the same side are blocked, causing the two corresponding wheels to lock simultaneously.

L'engin à 4 roues directrices défini selon la Fig.2 pourra, au gré du conducteur, être piloté par le volant de direction (F) fig.2 entraînant le pivotement des roues ou par le manipulateur (11) fig.1 permettant de virer par blocage et ripage des roues. The machine with 4 steering wheels defined according to Fig.2 may, at the discretion of the driver, be controlled by the steering wheel (F) fig.2 causing the wheels to pivot or by the manipulator (11) fig.1 allowing turn by locking and shifting the wheels.

FONCTIONNEMENT
EN MARCHE AVANT, la pompe (P) fig.1 alimente les moteurs (1) et (2) fig.1 en parallèle et ceux-ci alimentent les moteurs (3) et (4) fig.1 si les valves (5) et (6) fig.1 sont ouvertes.OPERATION
IN FORWARD, the pump (P) fig.1 supplies the motors (1) and (2) fig.1 in parallel and these supply the motors (3) and (4) fig.1 if the valves (5) and (6) fig. 1 are open.

La direction est assurée selon fig.2 par une pompe et un boitier ORBITROL (F) fig.2 alimentant le vérin (E) fig.2 qui actionne les barres d'accouplement (C1) - (C2) et (D) fig. 2 montées sur rotules pour orienter les pivots (BI - B2 - B3 - B4) solidaires des moteurs (A1-A2-A3-A4) FiG.2.  Steering is ensured according to fig.2 by a pump and an ORBITROL box (F) fig.2 feeding the cylinder (E) fig.2 which actuates the tie rods (C1) - (C2) and (D) fig. 2 mounted on ball joints to orient the pivots (BI - B2 - B3 - B4) integral with the FiG 2 motors (A1-A2-A3-A4).

EN MARCHE ARRIERE, la pompe (P1) fig.1 alimente les moteurs (3) et (4) fig.1 en parallèle et ceux-ci réalimentent les moteurs (M1) et (M2) fig.1 si les valves (5) et (6) fig.1 sont ouvertes.IN REVERSE, the pump (P1) fig.1 supplies the motors (3) and (4) fig.1 in parallel and these supply the motors (M1) and (M2) fig.1 if the valves (5) and (6) fig. 1 are open.

La direction est toujours assurée par l'ORBITROL (F) fig.2 Le vérin (E) et les barres d'accouplement (C1 - C2) - et (D) fig.2. Dans ces conditions, le manipulateur (11) fig.1 est au point neutre. Steering is always ensured by the ORBITROL (F) fig.2 The cylinder (E) and the tie rods (C1 - C2) - and (D) fig.2. Under these conditions, the manipulator (11) fig.1 is at neutral point.

A l'initiative du conducteur, L'action sur le manipulateur (11) fig.1 agit sur la valve (5) fig.1 ou sur la valve (6) fig.1. At the initiative of the driver, the action on the manipulator (11) fig.1 acts on the valve (5) fig.1 or on the valve (6) fig.1.

En marche avant, lorsque le conducteur pousse vers la droite le levier du manipulateur (11) fig.1 la vaLve (5) fig.1 se ferme et les moteurs (1) et (3) fig.1 sont bloqués, L'engin vire alors à droite sur place à la façon d'un engin chenillé. Lorsque le conducteur pousse vers la gauche le levier du manipulateur (11) fig.1, la valve (6) fig. 1 se ferme et les moteurs (2) et (4) fig.1 sont bloqués L'engin vire alors à gauche. In forward gear, when the driver pushes the joystick lever (11) to the right fig.1 the valve (5) fig.1 closes and the motors (1) and (3) fig.1 are blocked, The machine then veers to the right on the spot like a tracked machine. When the driver pushes the joystick lever (11) fig.1 to the left, the valve (6) fig. 1 closes and the motors (2) and (4) fig.1 are blocked The machine then turns to the left.

Dès que le manipulateur (11) fig.1 est relâché, iL revient au point neutre et la conduite est à nouveau assurée par Le volant et l'ORBITROL (F) fig.2.  As soon as the manipulator (11) fig.1 is released, iL returns to neutral point and driving is again ensured by the steering wheel and the ORBITROL (F) fig.2.

EN MARCHE ARRIERE, l'effet est identique.  IN REVERSE, the effect is identical.

Dans ces conditions, l'engin se trouve doté simultanément de deux types distincts de commande de direction ce qui lui permet au gré du conducteur d'évoluer comme un véhicule à roues directionnelles ou de virer par blocage ou ripage des roues comme un engin chenillé. Under these conditions, the machine is simultaneously provided with two distinct types of direction control which allows it at the discretion of the driver to move like a vehicle with directional wheels or to turn by locking or shifting of the wheels like a tracked machine.

Pour assurer la protection des moteurs hydrauliques, les valves (5) et (6) sont équipées en amont et en aval de clapets (12) fig.1 évacuant les surpressions vers le réservoir d'huile hydraulique. To ensure the protection of the hydraulic motors, the valves (5) and (6) are fitted upstream and downstream of valves (12) fig.1 evacuating the overpressures to the hydraulic oil tank.

LEGENDE DE LA FIG.2 Al - A2 - A3 - A4 - MOTEURS HYDRAULIQUES (1-2-3-4) FIG.1 81 - B2 - B3 - B4 - PIVOTS DE ROUES DIRECTRICES.  LEGEND OF FIG. 2 Al - A2 - A3 - A4 - HYDRAULIC MOTORS (1-2-3-4) FIG. 81 - B2 - B3 - B4 - STEERING WHEEL PIVOTS.

C1 - BARRE D'ACCOUPLEMENT AV
C2 - BARRE D'ACCOUPLEMENT AR
D - BARRE DE LIAISON DES PIVOTS
E - VERIN DE DIRECTION
F - ORBITROL AVEC SON VOLANT DE DIRECTION
G - CHASSIS
H - ESSIEU AV
I - ESSIEU AR
J - ENSEMBLE DES VALVES (5) et (12) Fig.1.C1 - AV COUPLING BAR
C2 - REAR COUPLING BAR
D - PIVOT CONNECTION BAR
E - STEERING JACK
F - ORBITROL WITH ITS STEERING WHEEL
G - CHASSIS
H - FRONT AXLE
I - REAR AXLE
J - SET OF VALVES (5) and (12) Fig. 1.

K - TUYAUTERIES (7) Fig. 1
L - TUYAUTERIES (8) Fig. 1
M - MANIPULATEUR (11) Fig. 1 K - PIPES (7) Fig. 1
L - PIPES (8) Fig. 1
M - MANIPULATOR (11) Fig. 1

Claims (7)

deux moteurs du même côté. two motors on the same side. par côté ce qui permet de bloquer momentanément Les per side which allows momentarily blocking L'alimentation en série des moteus AV. et AR. côté The serial supply of the AV moteus. and AR. side qui comporte deux valves commandées à distance et which has two remote controlled valves and hydraulique d'alimentation des moteurs selon fig. 1 hydraulic supply to motors according to fig. 1 moteurs hydrauliques, caractérisé par son circuit hydraulic motors, characterized by its circuit statique comprenant une pompe à débit variable et 4 static including a variable flow pump and 4 ou à la manutention, mû par une transmission hydro or handling, driven by a hydro transmission REVENDICATIONS 1 - Engin automoteur destiné au chargement, au terrassement CLAIMS 1 - Self-propelled machine intended for loading, earthmoving 2 - Engin automoteur selon revendication 1 caractérisé2 - Self-propelled machine according to claim 1 characterized par un système de blocage latéral des roues assuré by a lateral locking system for the wheels par des électro-valves (J1) (J2) Fig.2 actionnées à by solenoid valves (J1) (J2) Fig. 2 actuated at distance par des contacteurs électriques. distance by electrical contactors. 3 - Engin automoteur seton revendication 1 caractérisé3 - Self-propelled machine seton claim 1 characterized par un système de blocage latéral des roues assuré by a lateral locking system for the wheels par un distributeur hydraulique monté à la place des by a hydraulic distributor mounted in place of valves (J1) et (J2) et actionné par une commande à valves (J1) and (J2) and actuated by a control with distance par câble. distance by cable. 4 - Engin automoteur selon revendication 1 caractérisé par4 - Self-propelled machine according to claim 1 characterized by un système de blocage latéral des roues assuré par a lateral wheel locking system provided by des valves actionnées à distance par des manipulateurs valves actuated remotely by manipulators à air comprimé. compressed air. 5 - Engin automoteur selon revendication 1 caractérisé5 - Self-propelled machine according to claim 1 characterized par un système de blocage Latéral des roues assuré by a side locking system of the wheels par des valves (J1) et (J2) actionnées par des by valves (J1) and (J2) actuated by manipulateurs les pilotant hydrauliquement. manipulators piloting them hydraulically. 6 - Engin automoteur selon revendication 1 à 5 caractérisé6 - Self-propelled machine according to claim 1 to 5 characterized par un système de blocage latéral des roues effectué by a lateral wheel locking system par des manipulateurs manuels ou à pédales. by manual or pedal manipulators. 7 - Engin automoteur selon revendications précédentes sur7 - Self-propelled vehicle according to the preceding claims on lequel les valves (J1) et (J2) sont m ontées sur les which the valves (J1) and (J2) are fitted on the tuyauteries (13) (14) (15) (16) fig.l au lieu d'être pipes (13) (14) (15) (16) fig.l instead of montées sur Les tuyauteries (7) et (8) fig. 1.  mounted on the pipes (7) and (8) fig. 1.
FR9009072A 1990-07-11 1990-07-11 ADAPTATION TO A MACHINE MOUSED BY A HYDROSTATIC TRANSMISSION OF A STEERING CONTROL SYSTEM BY SWIVELING THE ROCKETS OR BY LATERAL LOCKING OF THE WHEELS TO THE DRIVER'S WHEEL. Expired - Fee Related FR2664553B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9009072A FR2664553B1 (en) 1990-07-11 1990-07-11 ADAPTATION TO A MACHINE MOUSED BY A HYDROSTATIC TRANSMISSION OF A STEERING CONTROL SYSTEM BY SWIVELING THE ROCKETS OR BY LATERAL LOCKING OF THE WHEELS TO THE DRIVER'S WHEEL.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9009072A FR2664553B1 (en) 1990-07-11 1990-07-11 ADAPTATION TO A MACHINE MOUSED BY A HYDROSTATIC TRANSMISSION OF A STEERING CONTROL SYSTEM BY SWIVELING THE ROCKETS OR BY LATERAL LOCKING OF THE WHEELS TO THE DRIVER'S WHEEL.

Publications (2)

Publication Number Publication Date
FR2664553A1 true FR2664553A1 (en) 1992-01-17
FR2664553B1 FR2664553B1 (en) 1995-07-07

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FR9009072A Expired - Fee Related FR2664553B1 (en) 1990-07-11 1990-07-11 ADAPTATION TO A MACHINE MOUSED BY A HYDROSTATIC TRANSMISSION OF A STEERING CONTROL SYSTEM BY SWIVELING THE ROCKETS OR BY LATERAL LOCKING OF THE WHEELS TO THE DRIVER'S WHEEL.

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FR (1) FR2664553B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2749821A1 (en) * 1996-06-14 1997-12-19 Coussement Load handling trolley especially for heavy loads

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3154164A (en) * 1961-10-12 1964-10-27 Cochran Equipment Company Off-highway tractor
FR1587515A (en) * 1967-12-08 1970-03-20
GB1545352A (en) * 1976-08-25 1979-05-10 Roat Pty Ltd J Skid-steer loader
GB2058300A (en) * 1979-06-27 1981-04-08 Hainaut Sambre Sa Wheeled vehicle with hydrostatic transmission

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3154164A (en) * 1961-10-12 1964-10-27 Cochran Equipment Company Off-highway tractor
FR1587515A (en) * 1967-12-08 1970-03-20
GB1545352A (en) * 1976-08-25 1979-05-10 Roat Pty Ltd J Skid-steer loader
GB2058300A (en) * 1979-06-27 1981-04-08 Hainaut Sambre Sa Wheeled vehicle with hydrostatic transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2749821A1 (en) * 1996-06-14 1997-12-19 Coussement Load handling trolley especially for heavy loads

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FR2664553B1 (en) 1995-07-07

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