Terex Demag Gmbh

Terex Cranes Germany Gmbh

Achim Schütz

Thomas Krebs

Jürgen Appel

Joachim Plagemann

Heike Schwitzgebel

Jürgen Schlachter

Device and process for braking rotating and/or slewing gears of work machines comprising at least one dynamic service brake for decelerating a rotating and/or pivotal movement of the rotating and/or slewing gear, and at least one static holding brake (), by means of which the rotating and/or slewing gear can be locked in one position, wherein at least one sensor () is assigned to the dynamic service brake () and/or to the static holding brake (), said sensor detecting the current movement of the rotating and/or slewing gear, and the sensor () being connected to a controller () that detects an actuation of the dynamic service brake () said controller actuating the static holding brake () when in case of continued rotating and/or pivoting movement of the rotating and/or slewing gear when a dynamic service brake () is still actuated.

Method and device for braking rotating and/or slewing gears

A crane having a telescoping boom whose sections, are arranged in a base boom that can telescope individually, in and out, after disengaging locking pin connections that are secured in the respective moved out or moved in positions by locking pins. A guide profile head is arranged at an end remote of the articulation of the safety locking unit to the inner end of the base boom. To lengthen the boom without substantially changing the telescopic system itself, the guide profile head is detachably fastened to the safety locking unit. An additional guide frame, whose length is dimensioned corresponding to the length of the telescoping boom that has been expanded by additional sections inserted in the telescoping boom, is mounted in place of the guide profile head, and that a guide profile head can be arranged at the free end of the guide frame.

Crane with telescopic boom

Growing community of inventors

Dellfeld, Germany

Achim Schütz