Compound reaming cutter head and control method thereof

• Main Authors: TANG ANPING, WANG YI, XIONG YUMING, WEI WEI, TAN QIWEN
• Format: Patent
• Language: Chinese; English
• Published: 07.08.2020
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The invention discloses a compound reaming cutter head and a control method thereof. The compound reaming cutter head comprises a pull rod, an upper cutter head, a lower cutter head and a plunger oilcylinder, wherein the pull rod is arranged at the center of the upper cutter head and the lower cutter head in a penetrating mode, and the diameter of the lower cutter head is larger than that of theupper cutter head; the lower cutter head is fixedly connected with the bottom end of the pull rod; the plunger oil cylinder comprises a cylinder barrel and a piston rod, the cylinder barrel is fixed to the top end of the lower cutter head, and the piston rod can extend upwards; and the upper cutter head is located above the plunger oil cylinder and makes contact with the piston rod, and the uppercutter head is circumferentially fixed to the pull rod and can slide up and down relative to the pull rod. By the compound reaming cutter head, one-time upward reaming well forming can be realized. 本发明公开一种复扩刀盘及其控制方法，复扩刀盘包括：拉杆、上