| 摘要 |
The present invention relates to the mechanical devices necessary for supporting, locking and guiding the pneumatic drill for marble which, retained by a mechanical arm mounted on a self-propelled vehicle, performs drilling of several holes necessary for the dynamite charges which are prepared in order to separate very heavy marble blocks in one piece. Said oil-dynamic devices consist of the following: a robust support for fixing the guides which guide and support the drilling tool, the fixing elements of the entire guide structure which, in order to perform the holes, must be arranged in a precise and safe manner, and the elements which complete the retaining and fixing action of the mechanical arm equipped for this purpose. <IMAGE> |
