ZJ40/2250J rig adopt 3 sets of PZ12V190B diesels to drive all the working machinery unified. The main drawworks and compounding transmission are placed on the back substructure, and the rotary table is placed on the platform. The belt compounding transmission drive the drawworks by chain to control the rotary table and drive the mud pump by belt. The rig is the best alternative product of Daqing 130 rig.
1. The rig adopt the modular structure, and the blocks connect with each other by axle pins, which can realize to transfer quickly.
2. The mast is a front open non-anchor line “K” type mast, the five section of which is designed a whole body and equipped with the crown block. The outrigger is joint at the basement firmly. It is rise and drop by drawworks as a whole.
3. Equipped with the bevel gear angle drive box and the cardan shaft, the rotary table is drived with the catworks chain box.