Railways – Track layers – Tamper
Patent
1981-10-14
1984-04-03
Reese, Randolph
Railways
Track layers
Tamper
E01B 2716
Patent
active
044400896
ABSTRACT:
In a railway track ballast tamping device, a tamping unit is carried for vertical adjustment by a support mounted on the frame structure of a vehicle and comprises at least one pair of jointly-operating tamping tools crossing each other. The arm of these tools are adapted to pivot on opposite eccentric cranks formed on an eccentric shaft rotatably mounted in a bearing rigidly fastened to the support; the upper ends of the arms, opposite the pick-forming thereof, are each pivotally connected to a hydraulic cylinder inclined not in excess of 30.degree. to the vertical; the planes passing through the axis of rotation on the eccentric shaft and the center of the opposite eccentric cranks thereof form between them an angle of 40.degree. to 80.degree. in order to warrant a symmetrical, synchronous oscillatory motion of the packers carried by the lower ends of the picks. To prevent the transmission of detrimental vibration to the support during the rotation of the eccentric shaft, there are provided, in addition to out-of-balance weight carried by a flywheel rigid with the eccentric shaft, balance weights fastened to the hydraulic cylinders and disposed above the level of the pivotal connections between these cylinders and the support. Furthermore, the tamping tools of a pair disposed on the same side of a tie have their upper ends rigidly interconnected.
REFERENCES:
patent: 3625156 (1971-12-01), Anderson
patent: 3799059 (1974-03-01), Sieke et al.
patent: 4218978 (1980-08-01), Pasquini
Cicin-Sain Yvo
Deliyski Yvan
Adams Bruce L.
Burns Robert E.
Canron Inc.
Lobato Emmanuel J.
Reese Randolph
LandOfFree
Railway track ballast tamping device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Railway track ballast tamping device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Railway track ballast tamping device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-662096