| 摘要 |
A tamping assembly for a track tamping machine has a pair of tamping tools arranged on a carrier (2) so it is vertically adjustable in a tamping assembly frame and is designed as a rocker arm, the lower tamping pick ends (5) of which, which plunge into a ballast bed (4), are drivable in opposite directions using an oscillation drive (6) and can be fed hydraulically toward one another. To increase the stability of the tamping assembly, a hydraulic cylinder (11) and a distance sensor (12) for determining the hydraulic cylinder position are associated with each of the tamping tools (3) of a tamping tool pair, wherein the hydraulic cylinders (11) form the feed drive and also the oscillation drive (6) of the tamping tools (3) and the hydraulic cylinders (11) are activated in dependence on the distance sensor signal. |
| 主权项 |
1. A tamping assembly for a track tamping machine, said tamping assembly comprising:
a pair of tamping tools arranged on a carrier so vertically adjustable in a tamping assembly frame, said tamping tools each comprising a respective rocker arm having a lower tamping pick end, said lower tamping pick ends being configured to plunge into a ballast bed, and being drivable in opposite directions using an oscillation drive, wherein said tamping pick ends can be fed hydraulically toward one another, wherein a respective hydraulic cylinder and a respective distance sensor determining a position of the hydraulic cylinder are associated with each of the tamping tools of the tamping tool pair, and wherein the hydraulic cylinders form a feed drive and also the oscillation drive of the tamping tools, and the hydraulic cylinders are activated responsive to a signal from the distance sensor. |
