Handling device for drill rods and so-called top drive having such a handling device

摘要

The invention relates to a handling unit for drill rods having an elevator bracket (30) which can be swiveled by means of a tilt arm (34) under the influence of a tilt cylinder (32), and means (42) for detecting a position of the at least one elevator bracket (30), in which is provided at least one valve (50) as means for detecting the position of the or each elevator bracket (30) and as part of a hydraulic switching control circuit (54) which continues outside the handling unit, and at least one connecting member (52) for the at least one valve (50), which connecting member can be moved by a movement of the tilt arm (34), wherein the or each valve (50) opens or closes the hydraulic switching control circuit (54) such that the state of the switching control circuit (54) can be evaluated as position information.

主权项

1. A handling unit for drill rods having:
at least one elevator bracket (30) and means (42) for detecting a position of the at least one elevator bracket (30), wherein said elevator bracket is swivelable by means of a tilt arm (34) under the influence of at least one actuating element (32), said handling unit further comprising: at least one valve (50) as means for detecting the position of the at least one elevator bracket (30) and as part of a hydraulic switching control circuit (54) which continues outside the handling unit, and at least one connecting member (52) for the at least one valve (50), said at least one connecting member being moveable by a movement of the tilt arm (34), wherein the at least one valve (50) opens the hydraulic switching control circuit (54) when the connecting member (52) is in a first position or location, and wherein the at least one valve (50) closes the hydraulic switching control circuit (54) when the connecting member (52) is in a second position or location.