Drill rod for percussion drilling machines used in underground mining and tunnelling
Номер патента: DE3120615A1
Опубликовано: 23-12-1982
Автор(ы): Friedrich-Wilhelm 4320 Hattingen Kunat, Günther Dr. Dipl.-Ing. Rechklinghausen Kluge, Karl-Heinz Dipl.-Ing. 2100 Hamburg Bauer
Принадлежит: Ruhrkohle AG
Опубликовано: 23-12-1982
Автор(ы): Friedrich-Wilhelm 4320 Hattingen Kunat, Günther Dr. Dipl.-Ing. Rechklinghausen Kluge, Karl-Heinz Dipl.-Ing. 2100 Hamburg Bauer
Принадлежит: Ruhrkohle AG
Реферат: According to the invention, the noise generation at drill rods for percussion drilling machines used in underground mining and tunnelling is reduced by various rubber sleeves sitting on the drill rod, of which the rubber sleeves in the proximity of the hammer are at a slight distance from one another and are enclosed by a pressed-on metal sleeve. The other rubber sleeves are abrasion-resistant or have a low degree of hardness and a low damping capacity.
Percussion rock drilling machine and drill rig
Номер патента: EP2523782A1. Автор: Ulf Nilsson. Владелец: ATLAS COPCO ROCK DRILLS AB. Дата публикации: 2012-11-21.