Tamping unit for tamping a track
AssigneePlasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H.
InventorHeinz Springer
Life of this patent
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Abstract
A tamping unit for tamping a track has tamping tools arranged in pairs. The tamping tools can be squeezed towards each other by a respective squeezing cylinder. A squeezing piston can be subjected to a hydraulic pressure of a first hydraulic circuit arranged in the respective squeezing cylinder. A vibration piston is assigned to each squeezing cylinder to superimpose a vibration on a squeezing movement. The vibration piston is arranged in a pressure amplifier with a primary cylinder and a secondary cylinder. In this way, vibration generation can be carried out at a lower pressure level.
Claims13
1-10. (canceled)
A tamping unit for tamping a track, the tamping unit comprising:
- tamping tools arranged in pairs, and disposed to be squeezed towards one another by way of respective squeezing cylinders;
- each said squeezing cylinder having a squeezing piston to be subjected to a hydraulic pressure of a first hydraulic circuit;
- each said squeezing cylinder having a respective vibration piston assigned thereto for superimposing a vibration on a squeezing movement;
- said vibration piston being arranged in a pressure amplifier with a primary cylinder and a secondary cylinder.
Dependencies are inferred from the claim text.