ORGANIC FERTILIZER SPREADER Russian patent published in 2006 - IPC A01C15/00 B60G5/02 B60G21/05 

FIELD: agricultural engineering, in particular, drive part of semi-trailer-spreader for application of organic fertilizers.

SUBSTANCE: organic fertilizer spreader has drive part made in the form of biaxial equalizing suspension, frame with tongue for connection to tractor, body mounted on frame and provided with conveyor, grinding and spreading drums. Spreader is equipped with hydraulic system comprising spring-loaded pressure sensor mounted on side of body and power hydraulic cylinders whose upper ends are pivotally attached to spreader frame and lower ends to rear ends of biaxial equalizing suspension, said pressure sensor and hydraulic cylinders communicating with one another through pipes. Spreader hydraulic system is connected with tractor hydraulic system to provide for controlled changing of additional loading force from cabin, said force being provided from spreader and applied to tractor, with spreader resting upon it, when tractor hydraulic distributor slide valve is in "lifting" position, or upon each of wheels of biaxial equalizing cart when spring-loaded pressure sensor is in its "closed" position, or upon wheels of rear axle when spring-loaded pressure sensor is in its "open" position.

EFFECT: reduced consumption of power in the process of spreading of organic fertilizer, and enhanced reliability in operation owing to changing of additional loading force applied to tractor trailer.

2 dwg