TENSIONER OF CABLE ANCHOR Russian patent published in 2011 - IPC E21D21/00 

FIELD: mining.

SUBSTANCE: rope anchor tensioner comprises a coupling with an axial channel for fixation of a rope, where a bushing is installed on the central strand of the rope, and a support nut installed on the coupling with the help of a threaded joint. The bushing has differently directed conical surfaces coupled with bases, and is equipped with a channel to let the central strand of the rope through, and the axial channel of the coupling has a surface that follows the bushing surface. At the same time at one end the coupling is equipped with a pipe, which covers the rope, and is pressed around the rope in the radial direction, and at the opposite end of the coupling in a gap between the surface of the axial channel of the coupling and the rope strands there is an elastic cartridge installed by means of impression with longitudinal slots in the body. Besides, the cartridge is equipped with a polyhedral head arranged with the possibility of connection with an accessory for power action at it and stop against the coupling end.

EFFECT: increased quality of the rope fixation with the coupling, provision of the necessary pliability of the anchor and improvement of its bearing capacity.

3 dwg