Revolute pair front-mounting structure capable of moving horizontally

The utility model discloses a revolute pair front-mounting structure capable of moving horizontally and belongs to the field of engineering machinery. The revolute pair front-mounting structure capable of moving horizontally comprises a main machine platform and a revolute pair. The front end of the main machine platform is provided with a base groove. A horizontally-moving oil cylinder is arranged in the base groove. The front end of the main machine platform is provided with a horizontally-moving track. A base platform is arranged on the horizontally-moving track in a matching mode. The revolute pair is fixed to the base platform. The lower portion of the base platform is connected with the horizontally-moving oil cylinder. Through the revolute pair front-mounting structure capable of moving horizontally, an arm of a drilling machine can stretch out and move forwards for a distance, and construction at a narrow section is facilitated; meanwhile, the rotational inertia of the revolute pair in the rotating pr