Drilling-milling composite-type circumferential nursery garden seedling root cutting tool bit

Abstract

The invention relates to the technical field of nursery garden seedling root cutting, and discloses a drilling-milling composite-type circumferential nursery garden seedling root cutting tool bit. The drilling-milling composite-type circumferential nursery garden seedling root cutting tool bit comprises a drill bit, a tool body and a rotating mandrel; the tool body is composed of milling cutter segments, the drill bit is designed by simulating the head and neck curve of a pangolin, the milling cutter segments are designed by simulating a kapok tree trunk, and kapok thorn-shaped tools are arranged in a DNA double helical mode; the drill bit and the milling cutter segments are connected and then integrally installed on the rotating mandrel; the drill bit is provided with a first chip removal groove in the axial direction of the drill bit, and the milling cutter segments of the tool body are provided with blade grooves; the tools are installed in the blade grooves; the drill tool is in tooth-embedded connection with the milling cutter segments of the tool body through dovetail grooves, and the milling cutter segments are in tooth-embedded connection with each other through dovetail grooves. According to the drilling-milling composite-type circumferential nursery garden seedling root cutting tool bit, annular or square cutting is completed through a drilling-after-milling mode, that is, the drill bit drills into a soil layer by about one meter, and then milling is performed on the soil layer through the helical milling cutter segments; the tool bit can lower the labor intensity and working noise in the root cutting process, improve the labor efficiency and prevent a danger from occurring due to close contact of people and the tools.

Description

technical field [0001] The invention relates to a root-cutting cutter head, in particular to a drilling-milling compound seedling circumferential root-cutting cutter head, belonging to the technical field of forestry seedling tending. Background technique [0002] Saplings are basic resources for forestry development and need to be cultivated and tended. In order to ensure that the seedlings in the nursery do not invade each other and at the same time improve the survival rate after transplanting, the roots of the seedlings need to be trimmed regularly, that is, the excessively long parts need to be trimmed as required. At present, root cutting operations in nurseries are generally done manually using tools such as picks and shovels, which are labor-intensive, consume a lot of manpower, and are inefficient. So some technicians tried to use a device similar to a chainsaw to cut the roots, but this device would deflect when encountering stones during cutting, the operation wa...

AI Technical Summary

Problems solved by technology

At present, root cutting operations in nurseries are generally done manually using tools such as picks and shovels, which are labor-intensive, labor-intensive, and inefficient.

So some technicians tried to use a device similar to a chainsaw for root cutting, but this device would deflect when encountering stones when cutting, the operation was unsafe, and it caused safety hazards to the legs and feet of the operator

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