Drilling rod designed on the basis of Lelord triangle principle and multi-function drilling machine

Abstract

The invention discloses a drilling rod designed on the basis of the Lelord triangle principle and a multi-function drilling machine. The problem of square hole and circular hole looping incision is solved, the cross section of the drilling rod adopts the form of an Lelord triangle, and meanwhile, in virtue of characteristics of a planetary gear train, the motion trail of the Lelord triangle is achieved; and through the equivalent-width characteristic of the Lelord triangle, the effect that a square hole is drilled is achieved, and the requirement of some special techniques for square hole piles can be met. According to the technical scheme of the drilling rod designed on the basis of the Lelord triangle principle and the multi-function drilling machine, the cross section of the drilling rod comprises three top points, and the positions of the three top points coincide with the positions of three top points of the Lelord triangle; and the three top points of the drilling rod are sequentially connected through three arcs with the same shape, cutting points used for cutting are arranged on the three arcs, and meanwhile, a soil discharging groove is formed in each arc.

Description

Technical field [0001] The invention relates to the field of pile machine engineering equipment, in particular, a drill rod and a multifunctional drill designed based on the Lelo triangle principle. Background technique [0002] At present, most of the existing piling machinery such as long auger drilling rigs and rotary drilling rigs are mainly used to form circular holes. There are few drilling rigs that can form square holes. Multifunctional drilling rigs that can form square and circular holes are more It's very rare. [0003] An existing patent with application number [CN 201510168474.1] discloses a rectangular hole drilling machine. When working, the drill rod ①, drill rod ②, drill rod ③, drill rod ④, and drill rod ⑤ respectively drive the following The drill bit rotates, and at the same time, the high pressure water entered by each drill rod is injected from the water injection hole at the lower end of the drill bit. The drill bit cuts the soil and stirs the water into mud ...

AI Technical Summary

Problems solved by technology

[0003] In the existing patent application number [CN 201510168474.1], a rectangular hole drilling machine is disclosed. During operation, the drill pipe ①, drill pipe ②, drill pipe ③, drill pipe ④, and drill pipe ⑤ respectively drive the following The drill bit rotates, and at the same time, the high-pressure water entered by each drill rod is injected from the water injection hole at the lower end of the drill bit. The drill bit cuts the soil and mixes the water into mud during the rotation; the drill rod ① drives the crankshaft ① and crankshaft ③ to rotate forward through the drive box ① , the crankshaft ① drives the hinge arm ① to swing during the rotation, the crankshaft ③ drives the hinge arm ③ to swing synchronously during the rotation, the drill pipe ④ drives the crankshaft ② through the drive box ②, the crankshaft ④ reverses, and the crankshaft ② drives the hinge during the rotation The arm ② swings synchronously, and the crankshaft ④ drives the hinged arm ④ to swing synchronously during the rotation; the hinged arm ①, hinged arm ②, hinged arm ③, and hinged arm ④ cut the multi-round holes drilled by the drill bit into rectangles during the swing Hole, the cut soil, falls to the drill bit, and the drill bit stirs the soil and water into mud during rotation, and the mud flows from the inside of the hole to the outside of the hole; this patent realizes the cutting of rectangular holes through the use of multiple drill bits. The working efficiency of this method is low, and at the same time, the accuracy of rectangular drilling is difficult to guarantee; and the hole structure of this kind of drilling machine is complex, and the multi-functional drilling and cutting of square holes and circular holes cannot be realized.

However, under some special circumstances or special process requirements, there is a large demand space for square hole piles, and some processes have relatively high precision requirements for square piles

[0004] To sum up, in the prior art, there is still no effective solution to the drilling and cutting efficiency and precision of square pile holes. Therefore, it is necessary to design a drilling rig that meets the precision requirements and has high cutting efficiency.

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