Articulated dozer with suspension and suspension lockout

Details Articulated dozer with suspension and suspension lockout Articulated dozer with suspension and suspension lockout

E - Fixed Constructions

02

F

E02F 3/815 (2006.01) B62D 55/065 (2006.01) B62D 55/104 (2006.01)

Patent

CA 2527842

An articulated loader has an articulated chassis and two A-frames. The points of the A-frames face each other. The articulated chassis includes a front portion and a rear portion. Likewise, there is a front or first A-frame and a rear or second A-frame. The A-frames are connected to the overall chassis at points close to but offset from the point of vehicle articulation via ball joints and via hydraulic suspension cylinders toward the wider portions of the "A"s. The vehicle is propelled along the ground by tracks that are independently suspended. The invention includes a suspension lockout feature to, effectively lockout the suspension system, i.e., render it rigid. One or more valves may are used to prevent hydraulic flow from and two the hydraulic suspension cylinders.

Il s'agit d'une chargeuse articulée comprenant un châssis articulé et deux cadres de châssis rétrécis. Les points de ces deux cadres se font face. Le châssis articulé comprend un partie avant et une partie arrière. De la même façon, se trouvent un premier cadre de chassis rétréci avant et un second cadre de châssis rétréci arrière. Les cadres de chassis rétrécis sont raccordés au châssis général aux points proches, mais décalés par rapport au point de l'articulation du véhicule, au moyen de joints à rotule et au moyen de vérins de suspension hydrauliques vers les parties plus larges des cadres de châssis rétrécis. Le véhicule est mû par des chenilles à suspension indépendante. Cette invention comporte une fonction de blocage efficace de la suspension pour la rendre rigide. Il est aussi possible d'utiliser un ou plusieurs clapets pour empêcher un débit hydraulique entre les vérins de suspension hydrauliques.

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