Integral rotary drill bit and convenient rotary drilling rig and tree stump crushing method

Abstract

The invention relates to a rotary drill bit. The rotary drill bit comprises a fixed tip, main cutting edges and chip discharging grooves; the main cutting edge and the chip discharging grooves are distributed on a conical surface, a protruding fixed tip is arranged at the conical tip, integral forming is conducted by adopting high-speed tool steel, by means of the rotating fixed tip and the main cutting edges, a tree stump is drilled downwards and to the periphery from the center of the tree stump until the tree stump is completely crushed. The strength and rigidity of the integral rotary drill bit are high, and the drilling efficiency is high. The invention further provides a portable rotary drilling rig. The portable rotary drilling rig comprises a hand frame, a power device, a transmission rod and the rotary drill bit; detachable connection is adopted, the portable rotary drilling rig can be disassembled into parts convenient to carry, so that the portable rotary drilling rig can betransported to the complex terrain in a forest conveniently, re-assembled and crushes tree sumps of diseased trees on the spot. The invention further provides a tree stump crushing method. On the condition that the tree stump does not need to be dug out, the portable drilling rig is adopted for directly crushing the tree stump in soil on the spot, and the nematode epidemic situation can be effectively controlled in time.

Description

technical field [0001] The invention belongs to the field of forestry machinery, and in particular relates to an integral rotary drill bit, a portable rotary drill and a stump crushing method. Background technique [0002] The pine xylophilus enters the xylem through the nutrient-supplemented wound of the pine woody beetle, and parasitizes in the resin canal. It moves while proliferating in large numbers, and gradually spreads throughout the whole plant, and causes the destruction and death of resin duct parenchyma cells and epithelial cells, causing the plant to lose water, and finally the whole plant dies. Pine trees infested with pine wood nematodes are the targets of pine beetles for laying eggs. The following year, when the monochamus alternatus emerges, it will carry a large number of nematodes and inoculate them on "healthy trees". This cycle will lead to the spread of pine wood nematodes. [0003] Forest clearing, cutting and burning of diseased and dying trees, an...

AI Technical Summary

Problems solved by technology

However, the volume and quality of large-scale machinery are too large, it is difficult to enter the complex areas of the forest, and it cannot crush tree stumps anytime and anywhere, and cannot effectively control the epidemic of pine nematodes in a timely manner.

[0005] At present, there is no small machine in China that can crush tree stumps without digging out the whole tree stumps. It is impossible to crush diseased tree stumps anytime and anywhere, and it is difficult to control the epidemic of pine nematodes.

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