Sandvik Mining and Construction Oy

Sandvik Ab

Tamrock Oy

Seppo Peltola

Ari Haavisto

Juha Piipponen

Tapani Sormunen

Arto Vento

Pentti Enlund

Pasi Julkunen

Jukka Tantari

Jouko Kuisma

Veikko Lintu

Kari Saarinen

The invention relates to a shield structure of a rock drilling apparatus for dampening noise, the rock drilling apparatus comprising a feed beam whose one end is a drilling end, whereby the drilling end of the feed beam comprises a first shield part mounted immovably relative to the feed beam, and a second shield part mounted movably relative to the feed beam. A tubular shield flexible at least in its longitudinal direction is mounted between the shield parts, the shield being tightly attached by its ends to the first and the second shield part.

Noise-dampening shield structure for rock drilling apparatus

The invention relates to a sound dampening housing for a rock drill which moves along a feed beam in a longitudinal direction thereof, the sound dampening housing being attachable to the feed beam of the rock drill on its both sides so that together with the feed beam the sound dampening housing constitutes a substantially closed space. The sound dampening housing is double-shelled, and an airspace is provided between its inner shell and its outer shell.

Sound dampening housing for rock drill

A rock drilling rig includes a movable carrier with a boom attached to it and movable in various ways. The free end of the boom is provided with drilling equipment. The drilling equipment is enclosed in a casing that prevents noise generated during drilling from spreading to the surroundings. The casing is arranged to move together with a feed beam and relative to the cradle mounted on the end of the boom. A flexible noise attenuating skirt projects forwardly from a front end of the casing for forming a sealed chamber around a drilling head.

Casing for noise attenuation in a rock drilling rig

Arrangement in a rock drilling equipment

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Tampere, Finland

Seppo Peltola