Percussion drill suitable for construction under complex sea area condition

Abstract

The invention provides a percussion drill capable of carrying out impacting and rotary drilling under a complex sea area condition. The percussion drill mainly comprises a speed changing box, a winding drum and an operating handle, wherein the speed changing box receives motive power transmitted by a power machine through a belt pulley; three different rotating speeds can be transmitted to the winding drum through combination of different gears in the box body; the winding drum drives a steel wire rope to lift and drop; the winding drum is connected to a gearbox through a big right-angle gear, and the winding drum can only rotate in a single direction; the operating handle which can control the winding drum to wind and stop winding is divided into a braking handle and a clutch handle; and the two handles are located at one side of the winding drum. The beneficial effects are that: as the volume of the percussion drill is small and a distance to a droll hole during the construction is far, an operating space is enlarged, a safety coefficient in the work is improved, and no influence to the construction work is generated under the complex working condition with relatively great waves on the sea; as the impact force and the lifting capability are relatively high during the drilling process, accidents in the holes such as hole collapse and buried drill are convenient to deal with; and the percussion drill has high work efficiency, is convenient and safe to operate, and convenient to maintain, and lightens labor intensity of operators.

Description

Technical field [0001] The invention relates to an engineering machine for drilling sampling work in the field of marine and land engineering geological surveys, in particular to a percussion drilling rig suitable for construction under complicated sea conditions. Background technique [0002] Drilling sampling is the main method of engineering geological survey work, usually vertical shaft type, hydraulic power head type rotary or percussion drilling rig is used to take underground soil samples at test points. At present, the domestic drilling equipment used in waters, especially sea areas, is to put land equipment on the shipboard platform, but the land drilling equipment usually has a short vertical axis and strong integrity. When the shipboard platform is affected by water currents and waves At the same time, the survey equipment is easily damaged, reducing the drilling efficiency, and working for a long time will reduce the service life of the equipment, thereby increasing t...

AI Technical Summary

Problems solved by technology

At present, the drilling equipment used in domestic waters, especially in sea areas, is to place land equipment on the ship-borne platform, but the vertical axis stroke of the land-area drilling equipment is usually short and the integrity is strong. When the ship-borne platform is affected by the current and waves At this time, the exploration equipment is easily damaged, reducing the drilling efficiency, and working for a long time will reduce the service life of the equipment, thereby increasing the cost of investigation

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