| 摘要 |
The invention relates to pulse feeders for lubrication equipment of machines and mechanisms. A feeder has a split casing in which inlet and outlet channels are provided, and stepped cylindrical cavity. There spring-supported ram and ring shutoff and check valves are arranged, as single elastic conical ring. The cone of the ring is reamed in direction of ram pressing by spring. Narrow side of the ring is in contact with the ram and has a gap with the casing and the wide side is in contact with the casing and has a gap with the ram. Sealing ring can be pressed to the ledge of stepped cavity either due to axial tension, or by spring-supported ring. At narrow side of the sealing ring there is back conical reaming. The invention promotes increase of reliability of feeders due to decrease of sensitivity to allowances on axial dimensions of the sealing ring and place of its installation. |
