Engineering percussion drill

Abstract

The invention relates to piling machinery in construction engineering, in particular to an engineering percussion drill structurally comprising a chassis, a rack, a motor, a transmission mechanism, a front drum, a rear drum and a main drum which are driven by the transmission mechanism, a percussion assembly, a ridge spar and a percussion bit, wherein a steering plate is fixed on the ridge spar and hinged with the front end of the rack; the engineering percussion drill is characterized in that a left hoisting plate and a right hoisting plate are fixed on two sides of the ridge spar; a hinging front shaft pin is fixed in a hole corresponding to the rear end of the part where the hoisting plates protrude from the ridge spar; a shaft sleeve is fixed at the front end of the piston rod of a hydraulic cylinder; the shaft sleeve is sleeved on the excircle of the middle part of the front shaft pin in a way that the shaft sleeve is in moveable fit with the front shaft pin; a rear shaft pin for hinging, which is perpendicular to the piston, is arranged on the rear seat of the hydraulic cylinder; the rear shaft pin is sleeved in the seat hole of the hinging seat on the bottom beam of the rack in a way that the rear shaft pin is in moveable fit with the seat hole; the oil inlet / outlet port of the hydraulic cylinder is communicated with a control valve and a gear oil pump driven by the motor via pipes. The engineering percussion drill of the invention has the advantages that the vertical state and horizontal state of the ridge spar can be achieved by the hydraulic system, thus achieving the single-machine operation.

Description

Technical field: [0001] The invention relates to a construction engineering piling machine, in particular to an engineering percussion drilling machine. Background technique: [0002] The engineering percussion drilling rig consists of a chassis, a frame, a motor, a transmission mechanism, and a front drum driven by the transmission mechanism, a rear drum, a main drum, an impact assembly, a sky beam mast, and an impact drill bit. The sky beam mast is fixed with a steering wheel The plate and the steering plate are hinged with the front end frame of the frame through hinged pins. When the whole machine is moving, the mast of the sky beam rotates around the joint pin and lies flat on the plane on the frame. When it is in working state, it is hoisted by a crane to be obliquely upright. The three reels are respectively divided into work shifting machine, steel cage hanging, material pipe hanging, drill bit hanging, and heavy hammer for intermittent blowing and lifting operation...

AI Technical Summary

Problems solved by technology

[0003] Since the horizontal and inclined masts of the sky beam need to be hoisted, the inability to stand-alone operation brings many disadvantages, and the hoisting operation is time-consuming, and at the same time, there are hidden dangers

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