Long-strip-shaped blade rotary drill bit, portable rotary drill rig and tree stump smashing method

Abstract

The invention discloses a long-strip-shaped blade rotary drill bit. The drill bit comprises a drill bit base body, a positioning drill bit and at least two long-strip-shaped blades; the detachable positioning drill bit is arranged at the central axis of the top of the circular-truncated-cone-shaped drill bit base body, and the side surface of the drill bit base body is provided with the detachablelong-strip-shaped blades uniformly distributed along the side surface. The rotary positioning drill bit and long-strip-shaped blades are utilized for drilling and cutting a tree stump downwards and toward the periphery from the center of the tree stump until the tree stump is completely crushed. The invention further provides a portable rotary drill rig. The drill rig comprises a handlebar frame,a power device, a transmission rod and the rotary drill bit, detachable connection is adopted so that the portable rotary drill rig can be divided into parts convenient to carry so as to be conveniently conveyed to a complex zone of a forest, and the tree stump of a diseased tree is crushed on site after the drill rig is assembled again. The invention further provides a tree stump crushing method. Without digging out the tree stump, the portable rotary drill rig is adopted for directly crushing the tree stump in soil on site, 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 an elongated blade 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 tr...

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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