Dipper door retarding mechanism

Details Dipper door retarding mechanism Dipper door retarding mechanism

E - Fixed Constructions

02

F

E02F 3/40 (2006.01) B66C 3/02 (2006.01) E21C 27/30 (2006.01) F16D 55/32 (2006.01)

Patent

CA 2735055

A retarding mechanism for continuously retarding the swinging movements of a dipper door is disclosed. The retarding mechanism comprises a hydraulic braking assembly mounted to the dipper bucket and operatively connected to the dipper door via at least one braking arm pivotally mounted within the braking assembly and at least one linking member pivotally mounted to the dipper door. The retarding mechanism continuously retards the opening and closing movements of the dipper door by controllably braking or slowing the at least one braking arm using the compressive action of at least one hydraulic piston mounted to the braking assembly.

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