Drill rod of mechanical engineering pile machine

Abstract

The invention provides a drill rod of a mechanical engineering pile machine. The drill rod comprises a drill rod body, a drill bit and air holes; the drill rod body is arranged in the middle of the lower side of a bottom plate, and the drill rod body is connected with the bottom plate in a welded mode; a partition plate is arranged on the outer side of the drill rod body, and the partition plate and the drill rod body are connected in an inserted mode; a spiral blade is arranged on the outer side of the drill rod body, and the spiral blade is connected with the drill rod body in a welded mode; the drill bit is located at the lower end of the drill rod body, and the drill bit and the drill rod body are of an integrated structure; a reinforcing rib is arranged on the outer side of a limiting block, and the reinforcing rib is connected with the limiting block in a welded mode; and the air holes are formed in the side face of the spiral blade and the side face of an outer pipe respectively, and the air holes, the spiral blade and the outer pipe are of an integrated structure respectively. Through structural improvement, the drill rod has the advantages of being high in drilling efficiency, high in safety coefficient, firm and durable, and therefore the problems and defects of the drill rod disclosed in the first item of the prior art are effectively solved.

Description

technical field [0001] The invention relates to the field of pile driver technology, and more specifically, relates to a mechanical engineering pile driver drill rod. Background technique [0002] The drill pipe is often seen in the pile driver. It is a kind of mechanical equipment used for drilling in the piling operation. In the piling operation of the construction industry, the ground is often in a relatively hard state. If the strength of the drill pipe is not enough, it will cause drilling. If the rod breaks, it will affect the piling work, so the durability requirement for the drill rod of the pile driver is very important. [0003] However, the current common drill pipes for pile drivers still have imperfect practical functions. When the drill bit is in rock or other relatively hard objects, the drill pipe cannot be broken quickly, resulting in a decrease in the construction rate. There will be air entering, if it cannot be discharged in time, it will cause the outer...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a mechanical engineering pile driver drill rod, to solve the problem that the current common pile driver drill rods proposed in the above background technology still have imperfect practical functions. When the drill bit is in rock or other relatively hard objects, the drill The rod cannot be broken quickly, which leads to the problem of slowing down the construction rate. At the same time, the spiral blade will enter the air when it is exporting the soil. If it cannot be discharged in time, it will cause the problem of bursting of the outer pipe and the shortage

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