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• Time of issue:2020-09-29 16:16
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(Summary description)The pipe jacking machine is mainly composed of rotary excavation system, main roof hydraulic propulsion system, soil conveying system, grouting system, measuring equipment, ground hoisting equipment and electrical system. Among them, the rotary excavation system (commonly known as "head") is mainly composed of front steel shell, rear steel shell, cutting mechanism (cutting cutter head), cutter head reducer, mud feeding and discharging mechanism, hydraulic power unit, correction hydraulic cylinder, waterproof ring, The cutting head, the rotating shaft of the cutter head, the electrical system, the automatic control system and the auxiliary equipment are composed. The steel shell bears the external (stratum) soil pressure and water pressure, protects the safety of internal equipment and operators, and is convenient for continuous cutting, lining and pushing operations on the excavation surface. In addition, the main roof hydraulic propulsion system is composed of four parts: the main roof hydraulic pump, the main roof hydraulic cylinder, the oil pipe and the operating table. It is the driving force device for the rotary excavation system and the pipeline being constructed.