BG 25 / 2011 / 2254_BG25_en_0000498763_V01
1.2.1.2 Components Description
Table Basic rig components description
Is a movable link from the machine to the mast
pivot.
Are movable connections of the boom to the ma-
chine. They enable adjustment of the machine's
distance to the bore.
Enables rotation of the uppercarriage to both
sides.
Drive the two crawlers forward and reverse.
Render stability to the equipment.
Main winch with main rope
Is used as a hoist for the Kelly.
Auxiliary winch with auxiliary rope
Is used for rigging operations and load handling.
Allows changing the distance from mast to bore.
Enables parallel repositioning of the mast.
Mast (upper section / lower section)
Provides guidance for the crowd sledge.
Supports the rig during withdrawal of the drilling
tool.
Is a swivel link between the mast and the boom.
Houses sheaves which guide ropes over the mast.
Mast extension (intermediate)
Enables use of longer drilling tools.
Allows the crowd sledge be positioned further down.
Are movable supports of the mast. They raise and
lower the mast and allow adjustment of the inclina-
tion of the mast.
Houses the engine, hydraulic system and controls.
Crowd rope tensioning cylinder (S)
Stresses the crowd ropes.
Enables parallel repositioning of the mast.
Is a mount for the backstay cylinders.
Carries the rig and moves it from one drilling spot
to the next.
Runs up and down the mast while carrying the ro-
tary drive and drilling tool.
Crowd ropes (upper / lower) (S)
Transfer force from crowd winch to crowd sledge.
Is a distance keeper for the crowd cylinder.
Generates the crowd forces.
Generates the crowd forces.
Z) for rig fitted with cylinder crowd V) for mast lowering to the front
S) for rig fitted with rope crowd H) for mast lowering to the rear
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