A conical spiral cavitation device

Abstract

The invention relates to the technical field of agricultural machines, and discloses a conical spiral cavitating device. The conical spiral cavitating device comprises a cavitating assembly and a connecting assembly and is characterized in that the cavitating assembly is composed of a center shaft, a circular-truncated-cone-shaped spiral blade, a cavitating cone and a reaming cutter, an external thread is arranged at one end of the center shaft, the other end of the center shaft is connected with the cavitating cone, the circular-truncated-cone-shaped spiral blade is arranged on the center shaft in a sleeving mode through an inner hole and is fixedly welded, and then the circular-truncated-cone-shaped spiral blade, the center shaft and the cavitating cone are connected into a whole; the connecting assembly is composed of a circular-truncated-cone-shaped flange plate, a flange plate outer boss, a flange plate inner boss and breast boards, the face, provided with the outer boss, of the circular-truncated-cone-shaped flange plate is a plane, the face, provided with the inner boss, of the circular-truncated-cone-shaped flange plate is a conical surface, and the four breast boards are uniformly distributed on the conical surface in the radial direction. The conical spiral cavitating device has the advantages that the cavity hole wall is not prone to collapsing, cavitating quality is high, by means of the circular-truncated-cone-shaped spiral blade, work friction resistance is small, power consumption is low, the cavitating assembly which is a quick-wear part is easy to disassemble, and therefore cost of a whole machine is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a conical spiral hole forming device. Background technique [0002] In agricultural production processes such as sowing, transplanting, and fertilization, making nests and forming holes is a prerequisite for operations. This type of nesting and forming holes is characterized by small apertures, generally less than 10cm, and a depth of less than 20cm. The quality of the holes is high. [0003] At present, the nest-forming machines widely used in the north are large in size and have a large supporting power. Due to the limitation of geographical conditions and different soil characteristics, these machines are not suitable for operation in the hilly and mountainous areas of the south. Therefore, the process of making nests and forming holes in the agricultural production of my country's hilly and mountainous areas mainly relies on manual work, which has high labor i...

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Problems solved by technology

[0003] At present, the nest-making machines widely used in northern operations are large in size and supporting power. Due to geographical constraints and different soil characteristics, these machines are not suitable for operations in hilly and mountainous areas in the south.

Therefore, the process of making nests and forming holes in agricultural production in hilly and mountainous areas of our country mainly relies on manual work, which is labor-intensive and inefficient.

[0004] In recent years, small motorized drill bit caving machines have also been used to make nests, but the depth of the caves is not easy to control, and the walls of the holes are prone to collapse, resulting in poor quality of the caves.

[0005] Patent application number 201320241126.9 "Planting machine for planting seedling well pits", patent application number 201420023267.8 "A shoulder-mounted tobacco seedling transplanting and punching machine", patent application number 201320222770.1 "Handheld electric flue-cured tobacco well cellar transplanting and punching ", etc., the hole-forming heads used are all cones, relying on their high-speed rotation to squeeze the holes, resulting in soil compaction on the walls of the holes and being too smooth, which is not conducive to the growth of crops; at the same time, the drill bits have high frictional resistance and are easy to wear. and high power consumption

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