An Hydro-Pneumatic Suspension for a Horizontal Balance Beam of the Loading Platform

The authors examine the possibility of creating a hydro-pneumatic suspension destinedfor horizontal balance beam of the loading platform. This suspension ensures small angular deviation of this platform relatively its specified initial horizontal position at the displacement of mass center for load located on this platform vs its vertical axis coordinates. An hydraulic scheme of this suspension with cross-strapped of the piston and rod hydrocylinder cavities is proposed. It includes the compensation of hydrocylinder differentiations with help of gaz-liquid hydroaccumulators. The method of the static characteristic calculation for hydro-pneumatic suspension has been developed for both displacement of the load mass center vs vertical axis coordinates ofplatform and under additional loading of one end of the balance beam. Recalculation of static characteristics for hydro-pneumatic suspension is carried out using an example of two standard sizes of hydrocylinders. Authors have estimated the influence both the cylinder differentiation and initial volumes of hydroaccumulator gaz cavities by deviation value of balance beam vs its horizontal position at the displacement of load mass center vs its vertical axis coordinates or under additional unilateral loading for one end of the balance beam. It has been shown that hydropneumatic suspension based on two differential hydrocylinders with cross-strapped of the piston and rod hydrocylinder cavities and two gaz-liquid hydroaccumulators may be used as an antiroll bar of the transport vehicle.

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