Large-scale rotary drilling machine

Abstract

The invention discloses a large-scale rotary drilling machine. The large-scale rotary drilling machine disclosed by the invention comprises a chassis assembly, a slewing platform assembly mounted on a vehicle frame of a chassis, and a rotary drilling machine assembly arranged on the slewing platform assembly, wherein the chassis assembly comprises the vehicle frame, two caterpillar track beams fixedly connected with the vehicle frame, and an external-connection caterpillar track frame which can be inserted into the caterpillar track beams, the caterpillar track beams and the vehicle frame present an H-shaped structure, the caterpillar track beams and the external-connection caterpillar track frame all adopt an empty core box type beam structure of which the cross section is rectangular; and components for mounting of caterpillar tracks are separately arranged on the caterpillar track beams and the external-connection caterpillar track frame, guide rails which are matched are separately arranged in the caterpillar track beams and an external-connection caterpillar track frame box body, and two devices which are mutually positioned and fixed are also separately arranged on the caterpillar track beams and the external-connection caterpillar track frame. The large-scale rotary drilling machine disclosed by the invention has the advantages that the large-scale rotary drilling machine can be suitable for transportation requirements and various working floor requirements, the ground contact pressure of equipment can be reduced, the stability of a complete machine is improved, and the large-scale rotary drilling machine has excellent walking capacity and climbing capacity.

Description

technical field [0001] The invention relates to a large rotary drilling rig. Background technique [0002] With the wave of infrastructure construction at home and abroad, the demand for rotary drilling rigs is increasing, especially for the construction of high-speed rail, subway projects, roads and bridges, and offshore and onshore wind power projects. The demand for large rotary drilling rigs is also further increasing. In the manufacture of existing rotary drilling rigs, the chassis uses two crawler tracks to walk on the ground. With the construction requirements of increasing and deepening the pile diameter, most domestic OEMs adopt the method of increasing the structural size of the chassis and the width of the crawler tracks to meet the requirements of the construction. Requirements, the machinery manufactured by the above-mentioned method all has drawbacks. It is mainly manifested in some large rotary drilling rigs. Due to the larger output torque, the structure of ...

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Problems solved by technology

Although this patent can better solve the deficiencies in the existing technology, the width of the equipment is greatly increased due to the two crawler tracks on the outer frame, so that it will be affected by road conditions when the equipment is transported or when the equipment is transferred. limit

In addition, when this kind of equipment works in special working occasions, such as when working in a soft ground work area, although the stability of the equipment in operation is better than that of the prior art, there may still be insufficient stability due to its definite supporting moment. The problem

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