Tamping head with limiting stop for tool reciprocation

Details Tamping head with limiting stop for tool reciprocation Tamping head with limiting stop for tool reciprocation

1983-05-03

1986-01-14

Reese, Randolph A.

Railways

Track layers

Tamper

104 10, 92 131, E01B 2716

Patent

active

045639531

ABSTRACT:
A tamping head for a mobile track working machine comprises a tamping tool carrier vertically adjustably mounted on the machine, a vibratory tamping tool mounted on the carrier for immersion in a crib for pivoting towards and away from an adjacent tie in a reciprocating stroke between two end positions, a hydraulic drive for pivoting the tamping tool, the hydraulic pivoting drive including a cylinder element and a piston element, a reciprocating stroke limiting stop cooperating with the hydraulic pivoting drive for selectively adjusting a respective one of the end positions, and a hydraulic actuator for setting the stop for the selective adjustment of a respective end position, the hydraulic actuator including a cylinder element and piston element, one of the elements being movable in relation to the other element and the axes of the hydraulic pivoting drive and of the hydraulic actuator being parallel to each other, the hydraulic actuator being mounted on the hydraulic drive and the stop being constituted by the movable element.

REFERENCES:
patent: 2872878 (1959-02-01), Plasser et al.
patent: 3357366 (1967-12-01), Plasser et al.
patent: 3430538 (1969-03-01), Weiss
patent: 3608498 (1971-09-01), Plasser et al.
patent: 4074631 (1978-02-01), Theurer
patent: 4130063 (1978-12-01), Theurer et al.

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