Turntable of rotary drilling rig and rotary drilling rig

Abstract

The invention discloses a turntable of a rotary drilling rig and a rotary drilling rig with the turntable. The turntable comprises a round table which is connected with the mast of the rotary drilling rig, a vertical plate device perpendicular to the round table is arranged on the round table and comprises at least two parallel vertical plates perpendicular to the round table; wherein the vertical plates comprises a shaft hole part hinged with a movable arm and a matrix part fixing the shaft hole part on the round table; and the shaft hole parts are arranged in the lateral positions below the matrix parts at the position of the position cocked of the mast. The hinging of the turntable and the movable arm can be realized through fixing a shaft sleeve in the shaft hole part. Since the shaft sleeve extends to the outer side of the turntable, the turntable and the movable arm can not produce cross-collision during the forward falling of the mast around the hinge point of the turntable and the movable arm.

Description

technical field [0001] The invention relates to a mechanical device, in particular to a rotary table for a rotary drilling machine and the rotary drilling machine. Background technique [0002] Rotary drilling rig is one of the piling machinery introduced and developed in my country in recent years. It is mainly used in super-large bridge piles of various highways and railway bridges, and load-bearing foundation piles with special structures of other large buildings. It is the main hole-forming tool for pile foundations. . Due to the characteristics of high power, fast drilling speed, high degree of automation, large drilling diameter, accurate positioning and high work efficiency, the advantages of rotary drilling rigs in construction are becoming more and more prominent. [0003] At present, there are mainly three supporting structures for rotary drilling rigs used in engineering: one is a small triangular support structure, which is composed of parallelograms and triangul...

AI Technical Summary

Problems solved by technology

[0007] like Figure 4 shown, for figure 1 The schematic diagram of the mast 101 moving forward in the figure, when the mast 101 is turned around the hinge point and tilted forward, after turning to a certain angle, the lower cover plate 103a of the boom 103 and the two inner vertical plates 102c of the turntable 102 will be in the Cross collision occurs near the hinge point, that is, interference phenomenon occurs, which affects the normal forward falling of the mast

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