| 摘要 |
The tamping machine is equipped with tool holders (7) on which each of the two tools (8) of a pair of tamping tools is connected by a cylinder-piston unit (28), via an eccentric arm (25, 25'), to one of the two eccentrics (24, 24') of the output shaft (33) of a forced oscillation generator. Each of the two eccentric arms (25, 25') has, in addition to its articulation to one of the two eccentrics, a second articulation connected directly to a hydraulic cylinder-piston unit (28) and a third articulation (29) connected by a connecting link (30) to a pivot (31) fastened on the tool holder, said last connection having the purpose of immobilizing the two eccentric arms in rotation around the eccentric shaft (33). This transmission of movements, designed to facilitate the maintenance of the hydraulic cylinderpiston units (28), is also shown applied to two and three pairs of tamping tools juxtaposed in the same plane. |
