Immersion depth control for ballast tamping tools

Details Immersion depth control for ballast tamping tools Immersion depth control for ballast tamping tools

1980-01-25

1982-01-26

Reese, Randolph A.

Railways

Track layers

Tamper

104 7R, E01B 2717

Patent

active

043122752

ABSTRACT:
A control arrangement for operating the hydraulic drive and for monitoring the vertical movement and a corresponding immersion depth of the tamping tools in the ballast of a tamping unit includes a hydraulic fluid control circuit connected to the hydraulic drive for the unit, a control valve in the control circuit, the valve being capable of steplessly adjusting hydraulic fluid flow to the drive, and a control connected to the valve for adjustment thereof. The control has a first signal transmitter providing a control signal indicating the actual vertical position of the tamping unit and a second signal transmitter providing another control signal indicating a desired immersion depth of the tamping tools in the ballast.

REFERENCES:
patent: 2876709 (1959-03-01), Plasser et al.
patent: 3127848 (1964-04-01), Plasser et al.
patent: 3177813 (1965-04-01), Stewart
patent: 3762333 (1973-10-01), Theurer et al.
patent: 3910195 (1975-10-01), Theurer
patent: 3949678 (1976-04-01), Theurer
patent: 4010692 (1977-03-01), Goel

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