Blade set rotary drill bit, portable rotary drilling machine and tree stump smashing method

Abstract

The invention discloses a blade set rotary drill bit. The blade set rotary drill bit comprises a drill bit base, a drilling guiding drill bit and blade sets. The detachable drilling guiding drill bitis arranged on a center shaft at the top end of the cone-frustum-shaped drill bit base, and the two or more blade sets are arranged at the side face of the drill bit base. The rotating drilling guiding drill bit, a guiding blade and a main blade are used for drilling a tree stump from the center of the tree stump to the downward part and the peripheral part till the tree stump is smashed completely. The invention further provides a portable rotary drilling machine. The rotary drilling machine comprises a handrail frame, a power device, a transmission rod and a rotary drill bit; detachable connection is adopted, the portable rotary drilling machine can be split into components convenient to transport, so that the components are transported to a forest complex terrain, and the diseased treestump is smashed in place after assembling is performed again. The invention further provides a tree stump smashing method. On the condition that the tree stump does not need to be dug out, the portable rotary drilling machine is adopted for directly smashing the tree stump in soil in place, and the epidemic situation of bursaphelenchus xylophilus can be timely and effectively controlled.

Description

technical field [0001] The invention belongs to the field of forestry machinery, and in particular relates to a rotary drill bit with a blade group, 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 ...

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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