Sandvik Intellectual Property Ab

Voest-alpine Bergtechnik Gesellschaft M.b.h.

Robert Felber

Alfred J Zitz

Thomas Galler

Christoph Haberer

Otto Krassnitzer

A multi-functional connector is arranged for connecting a functional drill element to a drill head, such as an extendable cylinder of a drill head. The multi-functional connector includes a first connecting element having a first receptacle, a second connecting element having a second receptacle, and a retainer element having a retainer opening. The first receptacle has at least two driving surfaces for transferring a torque in a first direction, the second receptacle has at least two driving surfaces for transferring a torque in a first direction and in a second, opposite direction, and the retainer element has at least one retaining section to prevent a movement of a second functional drill element relative to the second connecting element in a retracting position of the second functional drill element.

Multi-functional connector, drill head, and method

In a gearbox (1) with coaxial drive shaft (2) and driven shaft (3), wherein a clutch sleeve (5) which can be displaced in the axial direction (4) of these shafts (2,3) can be moved from a coupling position in which the drive shaft (2) and driven shaft (3) are directly connected into a position in which the shafts (2,3) are connected at least by one gear stage (16,17), the clutch sleeve (5) is constructed with at least one internal gear (7) and at least one external gear (9, 14) wherein in the directly coupled position of the shafts (2,3) these are connected with each other by means of an internal gear (7) and an external gear (9) of the clutch sleeve (5). With a gearbox (1) of this type with extremely short construction and at extremely low mounting expenses high torques can be securely transmitted and one can simply switch over from a first switching stage to a second switching stage.

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Zeltweg, Austria

Robert Felber