Abstract A drilling boom and rock drilling rig. The drilling boom (3) comprises a basic boom part (BB) a distal end of which is provided with a front joint assembly (8) of wrist. The wrist connects a feed beam assembly (FBA) to the basic boom part. The wrist has three joints, which are a roll-over joint (15), a feed tilt joint (16) and a feed swing joint (17) . Order of the joints of the wrist is optimized when the joints are in the mentioned order. The rock drilling rig (1) is provided with one or more such drilling booms provided with face drilling units or bolting heads. (Figure 2) 13a 13 RO-T-S2T 8 B* FBATR B 17,---v *-, BB- -- 16 FI.318 16 F IG.4 FG318 20 20 15
DRILLING BOOM AND ROCK DRILLING RIG
2020-02-20
Patent
Electronic Resource
English
IPC: | E21B EARTH OR ROCK DRILLING , Erd- oder Gesteinsbohren / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |