Drilling, expanding and cleaning integrated reverse-circulation rotating squeezed branch pile machine

Abstract

The invention discloses a drilling, expanding and cleaning integrated reverse-circulation rotating squeezed branch pile machine, comprising an outer pipe and an inner pipe, wherein the inner pipe is arranged in the outer pipe, and the inner pipe is connected with the outer pipe to form a telescopic pole; an outer pipe guide bar is arranged on the inner wall of the outer pipe, the outer wall of the inner pipe is provided with a vertical guide groove, a vertical guide block is arranged in the guide groove, the part between one end of the guide groove, close to the outer pipe, and the guide block is a rotating groove, the guide groove is arranged at one side of the guide block, and a part of the guide groove, capable of matching the guide bar of the outer pipe, is a vertical moving groove, the outer pipe guide bar is matched with the vertical moving groove and can vertically move in the vertical moving groove; the vertical moving groove is communicated with the rotating groove, the outer end of the inner pipe or the outer pipe is connected with a drill bit through a ratchet wheel mechanism, a mud-suction port is arranged on the drill bit; the outer pipe is articulated with one end of a first arm by a first connecting part, the other end of the first arm is articulated with one end of a second arm, and the other end of the second arm is articulated with the inner pipe by a second connecting part.

Description

technical field [0001] The invention relates to a drilling, expanding and clearing integrated reverse circulation rotating extruded and expanded support disc pile machine. Background technique [0002] In the existing rotary expansion machine, although there are three functions of drilling, rotary expansion support plate and hole cleaning, its performance is not optimistic in the actual engineering application. The main reason is that this type of rotary expansion It is integrated with the rotary expansion function and adopts a completely different mechanical structure form from the present invention. There are large-area through grooves on the wall of the telescopic rod of the rotary expansion machine, so that the effective sealing of the telescopic rod during rotary expansion cannot be implemented. As a result, the mud leakage area is too large, and it becomes more and more serious with the use time of the equipment. Due to the defect of mud leakage, this type of rotary ex...

AI Technical Summary

Problems solved by technology

It can be seen that positive circulation hole cleaning not only takes too long but also produces a large amount of mud. Today, with people's increasing awareness of environmental protection, the disposal of mud has become a difficult problem. In addition, new pile foundation technologies emerge in endlessly. Pile foundation works with holes are becoming less and less

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