Provision of a large turntable machine tools, especially milling boring machines

摘要

An arrangement of a turntable of large machine tools, particularly boring mill, formed by a torque motor (3) and a mounting system (27), on which are arranged both a rotating part (25) as a part static (24), wherein the stator (9) of the torque motor (3), provided with at least one winding, is an integral part of the static part (24) of the machine formed by the support (2) machine and the rotor (10) of the motor torque, provided with at least one permanent magnet is an integral part of the rotating part (25) of the machine formed by a plate working machine where both the rotor (10) and stator (9) the torque motor (3) are aligned optionally one another and with the axis (13) of the machine and are fixed to the mounting system (27) forming a pin or pin (4) fixed on the support ( 2) machine, wherein a radial bearing (6) is mounted, wherein the working plate (5) is seated, while for pivotal mounting of the working plate (5) between the support (2) of the machine and the working plate (5), at its proximal end, it is mounted the radial bearing (6) and is removed through (11) lubrication system, while the ratio of the diameter (D) of the rotor (10) to the height (h) of the stator (9) of the torque motor (3) is greater than 2, characterized in that torque is greater than 10.000 Nm and the motor has a greater number of poles 100 and the distal end is mounted an axial bearing (7) connected to the conduit (11) for lubrication or hydrostatic system (28) for ensure the horizontal position of the rotating part (25).