| 摘要 |
FIELD: agricultural engineering; load-lifting equipment. ^ SUBSTANCE: proposed hydraulic drive of loader swivel column 1 has one hydraulic cylinder 2 connecting one part of swivel column with turntable 3 coupled through other hydraulic cylinder 4 with frame 5. Hydraulic cylinders 2, 4 are connected to distributors. Column is provided with housing of hydraulic cylinder 6 for changing speed of column turning by pulling and retracting the rod and changing maximum angle of column turning relative to turntable. Each component part of swivel column can turn independent or simultaneously in one direction. Turning of each component parts of column is provided by separate hydraulic cylinder. Invention increases zone of covering in horizontal plane at turning of loader boom up to 240°, increases or decreases speed of column turning depending on synchronous or asynchronous operation of both cylinders. ^ EFFECT: reduced dynamic loads on loader. ^ 3 cl, 1 dwg |
