| 摘要 |
The driving gear of centrifugal unit of mineral fertilizer broadcasters is used in agricultural machine-building. It includes a shaft, whereon a disk with blades is mounted, which is kinematically connected to a hydraulic motor, which is connected to a hydrosystem of a tractor by a feed oil duct and a discharge one. According to the invention, the feed and discharge oil ducts are connected between each other by a channel, in which a check valve for passing the oil from the discharge oil duct into the feed one is arranged to improve the reliability of the driving gear by means of eliminating the possibility of an impermissible increase in the oil pressure in the discharge oil duct.
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