Hydraulic control means for a sweeping roller held by two cylinders in a sweeping machine
AssigneeMannesmann Rexroth GmbH
InventorDeian Bosniac
Life of this patent
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Abstract
The sweeping roller of a sweeping machine is held on the ground in sweeping operation by two hydraulic cylinders in such a manner that the degree of wear is small. For this purpose in each cylinder a static and different holding pressure must be set. The higher pressure is set at a pressure-limiting valve and the lower pressure at the series circuit parallel thereto of a nozzle with an adjustable throttle.
Claims5
Hydraulic control means for a sweeping roller held by two cylinders in a sweeping machine spaced at different distances from the roller ends, characterized in that between a fluid source and a tank a distributing circuit is provided which consists of a pressure-limiting valve and parallel to said pressure-limiting valve a series circuit of a nozzle and an adjustable throttle, one of said cylinders being connected to the inlet of the distributing circuit and the other of said cylinders being connected between said nozzle and such adjustable throttle, each cylinder being supplied with a respective constant and different pressure from the pressure-limiting valve and the throttle respectively.
Dependencies are inferred from the claim text.