Subsoiler and adjustable spiral drilling bit thereof

Abstract

The invention relates to a subsoiler and an adjustable spiral drilling bit of the subsoiler. The subsoiler comprises drilling rods, spiral blades arranged on the drilling rods in a winding manner, and drilling tips connected with the heads of the drilling rods, wherein each drilling rod comprises at least two sub-rods; the two adjacent sub-rods are connected through threads; directions of the threads are opposite to rotation directions of the adjustable spiral drilling bits; one end, far away from each drilling tip, of each drilling rod is connected with a case output shaft of the subsoiler by threads; directions of the threads are opposite to the rotation directions of the adjustable spiral drilling bits. The length of the drilling rods is adjusted by adjusting the mounting quantity of the sub-rods, so that different soil loosening depth demands can be met; the sub-rods are connected through the threads, so that the whole drilling bits are not required to be dismounted from the case output shafts, and multiple drilling bits in different specifications are not required to be carried; the directions of the threads connecting the sub-rods and the directions of the threads connecting the drilling rods and the case output shafts are opposite to the rotation directions of the adjustable spiral drilling bits, and the sub-rods are tightened more and more along with rotation of the drilling bits, so that the looseness of the drilling bits in a production process can be avoided.

Description

technical field [0001] The invention relates to the technical field of deep plowing and ridge loosening, in particular to a subsoiler and an adjustable auger bit thereof. Background technique [0002] The subsoiler is mainly used for deep plowing of powder ridge soil, and loosens the soil through the adjustable auger bit. In the actual application process, since different places have different requirements for the depth of soil loosening, different drill bits need to be replaced according to actual needs. shaft, and readjust the position of the drill bit and the output shaft, so the installation and disassembly are very troublesome; and in the production process, it is necessary to carry multiple drill bits of different specifications, which is not easy to manage; in the process of loosening the soil, sand is often encountered In harsh working conditions such as rocks, the tool is often loose, and often needs to be shut down for adjustment, so continuous production cannot b...

AI Technical Summary

Problems solved by technology

In the actual application process, since different places have different requirements for the depth of soil loosening, different drill bits need to be replaced according to actual needs. shaft, and readjust the position of the drill bit and the output shaft, so the installation and disassembly are very troublesome; and in the production process, it is necessary to carry multiple drill bits of different specifications, which is not easy to manage; in the process of loosening the soil, sand is often encountered In harsh working conditions such as rocks, the tool is often loose, and often needs to be shut down for adjustment, so continuous production cannot be performed, and the production efficiency is low.

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