CN219999935U

CN219999935U - Cone rotary drill for deep soil loosening

Info

Publication number: CN219999935U
Application number: CN202321604610.3U
Authority: CN
Inventors: 秦梦妍; 秦志英; 张琳琳; 赵月静
Original assignee: Hebei University of Science and Technology
Current assignee: Hebei University of Science and Technology
Priority date: 2023-06-25
Filing date: 2023-06-25
Publication date: 2023-11-14
Anticipated expiration: 2033-06-25

Abstract

The utility model provides a conical rotary drill suitable for large agricultural subsoiling operation, which solves the technical problems of soil congestion and cutter blade deformation when a current screw works, enlarges the soil loosening range, improves the soil water storage drought resistance and strengthens the air permeability of the soil. The flange plate and the main shaft are welded together through reinforcing ribs, and the cutter head is uniformly welded on the spiral blade. The utility model adopts the equal-pitch spiral blade structurally, but the diameter is gradually reduced from top to bottom, the deep scarification soil section is trapezoid, the contact area between the rotary drill and the soil is increased, the uniform cultivation is ensured, the cutter head adopts a single-side cutting edge, and the deformation degree of the cutter head is reduced. After the scheme is adopted, the structure is reasonable, the soil congestion can be regulated, and the energy conservation and emission reduction are realized.

Description

Cone rotary drill for deep soil loosening

Technical Field

The utility model belongs to the technical field of soil deep scarification, and particularly relates to a conical rotary drill for soil deep scarification.

Background

With the rapid development of agricultural mechanization, farmers need not only scientific land but also effective land cultivation. The tractor is connected with the traction subsoiler through the suspension device, traction force is transmitted to the subsoiler through the frame and is converted into cutting force of the subsoiler on soil, a hard plough bottom layer is damaged, and the depth of a plough layer is deepened, so that a virtual and real combined plough layer structure is formed, and the soil is enabled to keep moisture and absorb nutrients.

The subsoiler is used as key equipment in the soil subsoiler cultivation process, and when in work, the subsoiler transmits power to the subsoiler, and the subsoiler applies various forces such as shearing, extrusion, stretching, bending and the like to the deep soil, so that the soil is cut up, and the purpose of loosening the soil is achieved. The subsoiler is used as a key component of the subsoiler, and the size of the cultivation resistance applied in the cultivation process directly influences the cultivation effect. The deep scarification cutter used for operation has the problem of overlarge cultivation resistance during cultivation, and in order to solve the problem, the deep scarification part is required to be subjected to structural optimization.

With the development of agricultural subsoiling technology, after advanced technology outside the country is learned, the deep loosening cutter with various structures is independently and creatively manufactured in China, and is put into actual production through repeated test optimization, wherein the improved deep loosening cutter is the rotary drill which is most suitable for large farmlands, the depth range of the rotary drill deep loosening machine is 20-80 cm, the original moisture of soil can be maintained, grain yield and income are facilitated, the protective cultivation concept is met, and agricultural modern development is greatly promoted.

In order to maintain the strength and rigidity of the rotary drill within a normal working range so as to ensure a good cultivation effect of the subsoiler, structural parameters of the rotary drill must be strictly controlled, and especially, the influence of key parameters such as the shape and the number of the tool bits of the rotary drill, the thickness of the spiral blade of the rotary drill, the spiral angle and the like on the strength and rigidity of the rotary drill is particularly important, wherein the change of the thickness of the rotary drill can cause the rotary drill to be greatly deformed. However, the existing rotary drilling product structure is modified and perfected only by experience when being developed, the structural detail design is imperfect, the soil is jammed during working, the deformation degree of the blade is large, and the deep scarification efficiency is low.

Disclosure of Invention

In order to overcome the defects and shortcomings of the prior art, the utility model provides a conical rotary drill for deep soil loosening. Compared with other rotary drills, the conical rotary drill is characterized in that besides ensuring the soil turning function without disturbing the soil layer, the conical rotary drill also improves the condition of soil congestion, improves the deep loosening efficiency and reduces the deformation degree of the cutter.

In order to achieve the aim, the novel conical rotary drill for soil deep scarification comprises a flange plate (1), reinforcing ribs (2), a main shaft (3), spiral blades (4) and cutter heads (5), wherein the flange plate (1) transmits power to the main shaft (3) and then to the spiral blades (4) and the cutter heads (5), the reinforcing ribs (2) and the cutter heads (5) are uniformly distributed in a circumferential array by taking the axis of the main shaft (3) as the center, and a rotary drill material is 65Mn; the flange plate (1) is a circular thin plate, a plurality of circular through holes are formed in the flange plate, and the frame penetrates through the through holes and is fixedly connected with the flange plate (1) through bolts; the spiral blades (4) are of equal pitch, the diameters of the spiral blades are gradually reduced from top to bottom, and the spiral blades (4) are welded with the main shaft (3); the reinforcing ribs (2) and the cutter heads (5) are uniformly distributed in a plurality of circumferential arrays by taking the axis of the main shaft (3) as the center, one end of each cutter head (5) is thinner and subjected to chamfering treatment, and the cutter heads (5) and the spiral blades (4) are welded as main cutting edges.

The utility model adopts the equal-pitch spiral blade structurally, but the diameter is gradually reduced from top to bottom, the deep scarification soil section is trapezoid, the contact area between the rotary drill and the soil is increased, the scarification range is enlarged, and the uniform cultivation is ensured. After the scheme is adopted, the structure is reasonable, the soil congestion can be regulated, the energy is saved, the emission is reduced, and the deformation degree of the cutter head is reduced.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a conical rotary drill for soil subsoiling.

Fig. 2 is a cross-sectional view of a conical rotary drill flange and spindle for soil subsoiling according to the present utility model.

Fig. 3 is a schematic diagram of a cutter head structure of a conical rotary drill for soil deep scarification.

Fig. 4 is a top view of a conical rotary drill for soil subsoiling according to the present utility model.

In the figure, the structure comprises a 1-flange, a 2-reinforcing rib, a 3-main shaft, a 4-spiral blade and a 5-cutter head.

Detailed Description

For a better understanding of the present utility model, the present utility model is further described below with reference to the accompanying drawings.

In the description of the present utility model, the positional relationship indicated by the terms such as "upper", "lower", "left", "right", and the like are based on the orientation or positional relationship shown in the drawings.

The spiral drilling machine comprises a flange plate (1), reinforcing ribs (2), a main shaft (3), spiral blades (4) and cutter heads (5), wherein the flange plate (1) transmits power to the main shaft (3) and then to the spiral blades (4) and the cutter heads (5), the reinforcing ribs (2) and the cutter heads (5) are uniformly distributed in a circumferential array taking the axis of the main shaft (3) as the center, and the spiral drilling material is 65Mn; the flange plate (1) is a circular thin plate, a plurality of circular through holes are formed in the flange plate, and the frame penetrates through the through holes and is fixedly connected with the flange plate (1) through bolts; the spiral blades (4) are of equal pitch, the diameters of the spiral blades are gradually reduced from top to bottom, and the spiral blades (4) are welded with the main shaft (3); the reinforcing ribs (2) and the cutter heads (5) are uniformly distributed in a plurality of circumferential arrays by taking the axis of the main shaft (3) as the center, one end of each cutter head (5) is thinner and subjected to chamfering treatment, and the cutter heads (5) and the spiral blades (4) are welded as main cutting edges.

Fig. 1 is a schematic diagram of the overall structure of a conical rotary drill, when the conical rotary drill just contacts soil, soil particles in contact with a main shaft (3) move upwards and two sides along the direction vertical to the bottom surface of the main shaft (3) under the action of the main shaft (3), in the process that the conical rotary drill enters the soil to reach a preset cultivation depth, a spiral blade (4) and a cutter head (5) start to cut the soil, the soil particles move along the spiral line of the spiral blade (4) and are vertical to the spiral blade (4) and the cutter head (5), when the conical rotary drill starts to advance, the main shaft (3) starts to squeeze and cut the soil, a small part of the soil moves upwards, most of the soil moves to two sides along the reverse direction of the advancing direction of the conical rotary drill, and deeper furrows are formed at places where the conical rotary drill passes.

Although embodiments of the utility model have been disclosed above, they are not limited to the use listed in the specification and embodiments. It can be applied to various fields suitable for the present utility model. Additional modifications will readily occur to those skilled in the art. Therefore, the utility model is not to be limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims

1. The utility model provides a toper rotary drill for soil subsoiling, its characterized in that includes ring flange (1), strengthening rib (2), main shaft (3), helical blade (4), tool bit (5), ring flange (1) is with power transmission to main shaft (3) on, and again transmit helical blade (4) and tool bit (5), strengthening rib (2) and tool bit (5) use main shaft (3) axis as central circumference array equipartition to rotary drill material uses 65Mn.

2. The conical rotary drill for soil deep scarification according to claim 1, wherein the flange plate (1) is a circular thin plate, a plurality of circular through holes are formed in the circular thin plate, and the frame penetrates through the through holes and is fixedly connected with the flange plate (1) through bolts.

3. A conical rotary drill for soil deep scarification according to claim 1, wherein the helical blades (4) have equal pitch, the diameter gradually decreases from top to bottom, and the helical blades (4) are welded with the main shaft (3).

4. The conical rotary drill for soil deep scarification according to claim 1, wherein a plurality of reinforcing ribs (2) and cutter heads (5) are uniformly distributed in a circumferential array by taking the axis of a main shaft (3) as a center, one end of each cutter head (5) is thinner and subjected to chamfering treatment, and the cutter heads (5) are welded with a spiral blade (4) as main cutting edges.