Height Adjustment Device For A Screed Plate Of A Road Finisher And Road Finisher With Such A Height Adjustment Device

摘要

There are described a height adjusting device for an extendable screed plate for a road finisher and a road finisher comprising such a device. A ground element of the extendable screed plate is disposed with two pairs of worm gears on a top part of the extendable screed plate for vertical displacement thereon, wherein the worm gears of each pair are interconnected by a power transmission for concomitant actuation. Each pair is provided with a releasable clutch, preferably a conical clutch, by means of which the connection between an adjusting member of a pair and the associated transmission gear can be broken.

主权项

1. A height adjusting device for an extendable screed plate for a road finisher, wherein a ground element of said extendable screed plate is disposed with two pairs of adjusting members for vertical adjustment on a top part of said extendable screed plate, wherein said adjusting members of each pair are interconnected via an actuator for concomitant actuation thereof, which adjusting members are configured as worm gears,
wherein the worm gears of one pair are interconnected for the purpose of transferring a rotary movement via a transmission gear, that a worm gear of a pair is connected to said actuator, and that for at least one pair there is provided a releasable clutch, by means of which the connection between an adjusting member of said at least one pair and the associated transmission gear can be broken.