| 摘要 |
FIELD: mechanical engineering; control of mass and gravity center of machine. ^ SUBSTANCE: proposed method comes to shifting of ballast material along machine frame. Said ballast material is distributed between central, front and rear ballast reservoirs. With machine moving straight ahead, ballast material is displaced from central ballast reservoir into rear one, and at change of direction of movement to reverse, from rear ballast reservoir into front one. Liquid is used as ballast material. Device to control mass and position of center of gravity of machine contains ballast material shifted frame. Ballast reservoirs are installed on frame at opposite ends and in center, being interconnected by pump and three two-position two-way spools and pipelines. Central ballast reservoir is connected with first output of first spool, and its input is connected to first output of second spool. Second spool is connected with input of pump. Second outputs of first and second spools are connected, respectively, with front and rear ballast reservoirs. Output of pump is connected with input of third spool, and outputs of the latter are connected to front and rear ballast reservoirs. Hollow metal structures of machine frame are used as central ballast reservoir. ^ EFFECT: improved quality of operation owing to control of mass of machine and position of center of gravity owing to displacement of ballast material in any direction along machine axis depending of technological requirements within the limits of working cycle of set. ^ 4 cl, 5 dwg |
