A tractor-trailer or big rig, consisting of a semi-trailer and a semitruck pulling it; in American English referred to as semi-trailer truck or 18-wheeler.
drilling rig
noun
Used other than figuratively or idiomatically: see drilling, rig.
An oil rig.
How often have the words articulated lorry and drilling rig occurred in a corpus of books? (source: Google Ngram Viewer )