CN204539772U - Double disk opener is coupled bionical disc structure - Google Patents

Abstract

The utility model discloses a double-disc opener coupling bionic disc structure, which is provided with a wedge-shaped protrusion and a spherical convex hull on the disc surface of the double-disc opener, and the wedge-shaped protrusion and the spherical convex hull are arranged on the circular disc surface. The surface of the disc is arranged alternately in a ring shape, with a total of multiple layers, and the wedge-shaped protrusions of adjacent layers are opposite to the spherical convex hull; during the process of ditching by the opener, the coupling bionic structure of the wedge-shaped protrusion and the spherical convex hull of the utility model can break the The continuity of the water film formed when the soil is in contact with the surface of the disc reduces the cohesive force of the soil, thereby reducing the adhesion of the soil to the disc, reducing the resistance of the soil to the opener, improving the quality of ditching, reducing the fuel consumption.

Description

Double disc opener coupling bionic disc structure

technical field

The utility model belongs to the field of agricultural machinery, relates to a general double-disc opener, in particular to a double-disc opener coupling bionic disc structure.

Background technique

Double-disc openers are widely used in the soil-contacting parts of grain seeders and row crop precision seeders, and are suitable for high-speed operations with poor soil preparation conditions and high soil humidity. However, due to adhesion and other reasons during the tillage process, the work resistance is large and the soil disturbance is large. Therefore, optimizing the structure of the opener, reducing tillage adhesion, and reducing soil resistance are of great significance for improving the quality of trenching and reducing energy consumption. .

The discs of ordinary double-disc openers are flat. When in contact with the soil, the capillary force and viscous force caused by the continuous water ring or water film on the contact interface will cause adhesion, which will increase the disturbance of the soil. Reduce the quality of ditching, affect the yield of crops, and at the same time cause the increase of traction resistance to a certain extent.

Breakthroughs have been made in reducing the adhesion and resistance of soil to soil-contacting parts by using bionics as a research method to design the shape and structure of soil-contacting parts. The bulldozing board and bionic plowboard designed with the non-smooth shape of the surface of soil organisms have been proved by experiments to have a good effect of reducing soil adhesion and soil resistance. Field test results show that the bionic plowboard can reduce plowing resistance by 15% to 18%, save fuel consumption by 5.6% to 12.6%, and has good soil removal performance.

Contents of the invention

The purpose of the utility model is to provide a double-disc opener coupling bionic disc structure, which can reduce soil adhesion, reduce trenching resistance, reduce fuel consumption, and achieve the purpose of energy saving.

The ridges of pangolin scales and the head protrusions of dung beetles belong to geometric non-smooth surfaces. These surface structures can make pangolins and dung beetles less adherent or even non-adhesive when they move in the soil. It can reduce its resistance to movement in the soil. According to the principle of bionics, the utility model couples two structures and designs a novel ditch opener disk.

The utility model is provided with wedge-shaped protrusions and spherical convex hulls on the disc surface of the double-disc opener. The wedge-shaped protrusions and spherical convex hulls are distributed in a ring on the disc surface, and there are multiple layers in total. The wedge-shaped protrusions of adjacent layers T is the thickness of the disc; H1 is the height of the wedge-shaped protrusion, L1 is the length of the wedge-shaped protrusion; H2 is the height of the spherical crown of the spherical convex hull, and is the spherical crown diameter D2 of the spherical convex hull; A is the angle between two protrusions in the ray direction; where H1=T, L1=D2, H2=7%~13%D2, A=7.2°~12°.

In the utility model, through the combination of the structural setting of the wedge-shaped protrusion and the spherical convex hull and the parameters of the wedge-shaped protrusion and the spherical convex hull, the disks will not stick, and the ditching resistance of the double-disc opener is reduced.

The beneficial effects of the utility model are: when the double-disk opener is in ditching operation, the discs are in close contact with the soil, and the contact surfaces between the soil and the discs are not easy to form continuous due to the wedge-shaped protrusions and spherical convex hulls on the surface of the discs. water film, so that the adhesion will remain low and the discs will not stick. At the same time, this can also reduce the resistance of ditching, improve the quality of work, and reduce fuel consumption.

Description of drawings

Fig. 1 is the top view of the utility model.

Fig. 2 is a front view of the wedge-shaped protrusion of the present invention.

Fig. 3 is a top view of the wedge-shaped protrusion of the present invention.

Fig. 4 is a left view of the wedge-shaped protrusion of the present invention.

Fig. 5 is a cross-sectional view of the spherical convex hull of the present invention.

specific implementation plan

As shown in Figure 1, in this embodiment, wedge-shaped protrusions 2 and spherical convex hulls 3 are arranged on the surface of the disc 1 of the double-disc opener, and the wedge-shaped protrusions 2 and the spherical convex hulls 3 are annularly alternated on the surface of the disc 1. Distribution, there are three layers in this embodiment, the wedge-shaped protrusion 2 of the adjacent layer is opposite to the spherical convex hull 3; T is the thickness of the disc 1; as shown in Figure 2, Figure 3 and Figure 4, H1 is the wedge-shaped protrusion 2 L1 is the length of the wedge-shaped protrusion 2: as shown in Figure 5, H2 is the height of the spherical crown of the spherical convex hull 3, and is the diameter D2 of the spherical crown of the spherical convex hull 3; A is the distance between the two protrusions in the ray direction Included angle; where H1=T, L1=D2, H2=7%~13%D2, A=7.2°~12°.

Claims (1)

1. a double disk opener is coupled bionical disc structure, it is characterized in that: be that wedge shape projection (2) and spherical convex closure (3) are set on disk (1) surface of double disk opener, wedge shape projection (2) and spherical convex closure (3) distribute alternately ringwise on disk (1) surface, total multilayer, the wedge shape projection (2) of adjacent layer is relative with spherical convex closure (3); T is the thickness of disk (1); H1 is the height of wedge shape projection (2), and the spherical crown height of L1 to be the length of wedge shape projection (2): H2 be spherical convex closure (3) is the spherical crown diameter D2 of spherical convex closure (3); A is the angle between directions of rays two projection; Wherein H1=T, L1=D2, H2=7% ~ 13%D2, A=7.2 ° ~ 12 °.