Unitized hydraulic suspension system

摘要

A unitized hydraulic suspension system for a tandem front and back two-axle group comprises two pivoting arms, each for supporting one of the two axles, arranged on opposite sides of a common rigid hanger. Each arm is attached to one end of a respective cylinder the other end of which cylinder is attached to the common hanger. The unitized hydraulic suspension simplifies the use of hydraulic suspension in dual laning heavy haul applications by the provision of a slide assembly in which unitized hydraulic suspensions are slidably mounted so as to be extendible or retractable in relation to one another.

主权项

1. A dual laning hydraulic suspension system comprising:
at least two side by side tandem hydraulic suspension systems, each of said tandem hydraulic suspension systems comprising two pivoting axle support arms arranged on opposite front and rear sides of a common hanger, a first hydraulic cylinder attached between said common hanger and a first one of said support arms and a second hydraulic cylinder attached between said common hanger and a second one of said support arms; each of said at least two tandem hydraulic suspension systems being mounted in slidable relationship to a slide assembly on the frame of a vehicle to allow said at least two tandem hydraulic suspension systems to be selectively repositioned in a retracted or an extended relationship to one another by sliding said tandem hydraulic suspension systems along said slide assembly transversely in relation to said frame.