Hydraulic trencher for trenching ground to pass e.g. telecommunication cable pipes, has pinion driven by rotational effect caused by motor and in parallel with advancement of tow-hoe that permits to trench and form channel in ground

摘要

The trencher (1) has a hydraulic motor (6) and a mechanical part of a support (2) comprising two rollers (3) at its end. A pinion drives a chain (4) on which treated strips (5) are fixed. The pinion is driven by a rotational effect caused by the motor and in parallel with the advancement of tow-hoe (8), where the tow hoe permits to trench and form a channel in a ground. A tube (7) having a diameter of a cable is fixed by two bolts (9) to be buried at bottom of a trench.