| 摘要 |
FIELD: railway transport; permanent way maintenance and repair. SUBSTANCE: suction device has two ballast aggregate accumulators 17, 18, each provided with suction and discharge holes 35 and 36 with suction pipe 10. To provide alternating hermetic closing, use is made of sealing member 44, 45 ensuring sealing of at least one of suction holes 35-38. Such design provides emptying of filled up ballast aggregate accumulators 17, 18 in turn, without interruption of process of suction. EFFECT: enhanced convenience of operation. 10 cl, 4 dwg |
