Swing-type diameter-variable envelope forming full-section drill tool

Abstract

The invention discloses a swing-type diameter-variable envelope forming full-section drill tool, which comprises a swing mechanism, a drill arm, driving devices and a drill tool body. The swing mechanism comprises an outer shell, a first hydraulic cylinder, a second hydraulic cylinder, a third hydraulic cylinder and a fourth hydraulic cylinder, a transmission shaft coaxial with the outer shell ismounted in the outer shell, the upper part and the lower part of the transmission shaft are connected with the inner wall of the outer shell through bearings correspondingly, the lower part of the transmission shaft stretches out of the outer shell, a connecting plate is mounted on the part, outside the outer shell, of the transmission shaft in a sleeving mode, the first hydraulic cylinder and thesecond hydraulic cylinder are rotationally connected to a rack of a shaft tunneling machine in a splayed mode, the ends of piston rods of the first hydraulic cylinder and the second hydraulic cylinder are rotationally connected to the connecting plate, the third hydraulic cylinder and the fourth hydraulic cylinder are rotationally connected to the outer end of the connecting plate in a splayed mode, and the ends of piston rods of the third hydraulic cylinder and the fourth hydraulic cylinder are rotationally connected to the drill arm; and the drill arm is of a telescopic structure, the multiple driving devices are mounted at the end of the drill arm, and each driving device is connected with the drill tool body located below the drill arm. The swing-type diameter-variable envelope forming full-section drill tool can be suitable for different geological conditions, and full-section tunneling is achieved.

Description

technical field [0001] The invention relates to the technical field of shaft excavation construction machinery and equipment, in particular to a swing-type variable-diameter envelope forming full-section drilling tool. Background technique [0002] With the development of the national economy, the construction of urban rail transit and the construction of urban underground pipe corridors have developed rapidly in recent years. In the construction of underground projects, such as shield starting and receiving shafts, mining shafts, tunnel ventilation shafts, underground fortification shafts, underground parking lots, mine roadways, traffic tunnels and other underground engineering constructions, in order to ensure the smooth progress of construction, excavation tools are required. Shafts for transporting materials and ventilation. The upper end of the shaft is connected to the ground, and the lower end of the shaft is connected to the roadway or tunnel. Shaft excavation is ...

AI Technical Summary

Problems solved by technology

In the current vertical underground space construction, manual excavation is very difficult. Traditional shaft drilling rigs use full-section cutter heads for construction. When changing, the original cutter head cannot be used, and the cutter head can only be redesigned, which has poor versatility and high cost

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