Disc type ditching device for seeder

Abstract

A disc type ditching device for a seeder comprises a main ditching disc, an auxiliary ditching disc, a bearing seat, a bearing, an auxiliary ditching disc mounting shaft, a main ditching disc mounting shaft, a mounting handle and a disc cutting edge, the disc cutting edge of the main ditching disc is mounted in the direction deviating from the bearing seat on the outer side, and the mounting position of the main ditching disc is ahead of the auxiliary ditching disc; according to the disc type ditching device, ditching resistance can be reduced, ditching power can be saved, according to the scheme, the soil penetrating angle of the cutting edge of the disc is optimized by changing the installation mode of an original ditching disc, the minimum soil penetrating cutting angle is achieved, and therefore the ditching resistance is reduced, and the effects of energy conservation and emission reduction are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of seeding machinery, in particular to a disc type ditching device for an energy-saving seeder. Background Art

[0002] The existing disc type ditching device for a seeder mainly consists of two ditching discs working together. There are mainly two structures for the cooperation of the two discs. One is that the offset edges of the main ditching disc and the auxiliary ditching disc both converge towards the middle inner side, jointly forming a middle-shaped edge. The edge is in the middle, the edge angle of the main ditching disc is 15°, the edge angle of the auxiliary ditching disc is 15°, the ditching angle of the main ditching disc and the auxiliary ditching disc is 10°, and the combined edge angle is 40°; the offset edges of the main ditching disc and the auxiliary ditching disc both converge towards the middle inner side, and the main ditching disc and the auxiliary ditching disc are combined in a staggered manner, one in front and the other behind, to jointly complete the work of cutting soil and ditching. The edge angle of the main ditching disc is 15°, the ditching angle of the main ditching disc and the auxiliary ditching disc is 10°, and the combined edge angle is 25°; however, the existing disc type ditching device has an unreasonable structure, a large soil entry cutting angle, a large resistance for soil entry and ditching, and there is a problem of energy waste. Summary of the Invention

[0003] In order to solve the deficiencies of the prior art, the utility model provides a disc type ditching device for a seeder. The disc type ditching device for the seeder reduces the soil entry cutting angle of the ditching device, thereby achieving the purpose of reducing the resistance of soil entry and ditching and playing the role of energy conservation and emission reduction.

[0004] The technical solution of the present utility model to solve its problems includes a main ditch-opening disc, a secondary ditch-opening disc, a bearing seat, a bearing, a secondary ditch-opening disc mounting shaft, a main ditch-opening disc mounting shaft, a mounting handle, and a disc cutting edge. Among them, the disc cutting edge of the main ditch-opening disc is installed towards the outer bearing seat direction, and the installation position of the main ditch-opening disc is ahead of that of the secondary ditch-opening disc. The main ditch-opening disc and the secondary ditch-opening disc are made of circular steel plates. After grinding the edges of the circular steel plates, a disc cutting edge biased to one side is formed. The cutting edge of the main ditch-opening disc is installed towards the outside, and the cutting edge of the secondary ditch-opening disc is installed towards the inside. The secondary ditch-opening disc is installed staggeredly backward relative to the main ditch-opening disc. The cutting edge angle of the main ditch-opening disc is 15°. The ditch-opening angle of the secondary ditch-opening disc is smaller than the cutting edge angle of the main ditch-opening disc. Therefore, the combined soil-entering cutting angle is the smallest, which is 15°. The upper part of the mounting handle is connected to the seeder by screws or other means. The lower part of the mounting handle is fixedly equipped with a main ditch-opening disc mounting shaft and a secondary ditch-opening disc mounting shaft. The position of the main ditch-opening disc mounting shaft is ahead of that of the secondary ditch-opening disc mounting shaft. The main ditch-opening disc is rotatably installed on the main ditch-opening disc mounting shaft through a bearing seat and a bearing. The secondary ditch-opening disc is rotatably installed on the secondary ditch-opening disc mounting shaft through a bearing seat and a bearing. Correspondingly, the position of the main ditch-opening disc is ahead of that of the secondary ditch-opening disc. An angle is designed between the main ditch-opening disc mounting shaft and the secondary ditch-opening disc mounting shaft, so that the front ends of the main ditch-opening disc and the secondary ditch-opening disc can be brought together to form a combined soil-cutting edge.

[0005] The main ditch-opening disc mounting shaft can be installed on the left side of the mounting handle or on the right side of the mounting handle. Correspondingly, the main ditch-opening disc can be installed on the left side of the mounting handle or on the right side of the mounting handle. Correspondingly, the secondary ditch-opening disc can also be installed on the right side of the mounting handle or on the left side of the mounting handle.

[0006] The beneficial effects of the present utility model are as follows: The soil-entering cutting angle of the ditch-opening device is reduced, thereby reducing the resistance of the ditch-opening and soil-entering, and playing a positive role in energy conservation and emission reduction. Description of the Drawings

[0007] Figure 1 is the top view of the novel disc-type ditch-opening device;

[0008] Figure 2 is the top view of the existing disc-type ditch-opening device with the cutting edge in the middle;

[0009] Figure 3 is the top view of the existing disc-type ditch-opening device with the main and secondary ditch-opening discs misaligned and combined;

[0010] Figure 4 is the top view of the front-end combined cutting edge of the present utility model;

[0011] Description of part numbers in the figure: 1. Main furrowing disc; 2. Auxiliary furrowing disc; 3. Bearing seat; 4. Bearing; 5. Auxiliary furrowing disc mounting shaft; 6. Main furrowing disc mounting shaft; 7. Mounting handle; 8. Disc edge

[0012] The present utility model will be further described below in conjunction with the accompanying drawings. Specific embodiments

[0013] The specific embodiments of the present utility model are as follows. As Figure 1 shown, the disc-type furrowing device for the seeder includes a main furrowing disc 1, an auxiliary furrowing disc 2, a bearing seat 3, a bearing 4, an auxiliary furrowing disc mounting shaft 5, a main furrowing disc mounting shaft 6, a mounting handle 7, and a disc edge 8. Among them, the disc edge 8 of the main furrowing disc 1 is installed towards the outer bearing seat direction, and the installation position of the main furrowing disc 1 is ahead of the auxiliary furrowing disc 2. The upper part of the mounting handle 7 is connected to the seeder by screws or other means. The lower part of the mounting handle 7 is fixedly equipped with a main furrowing disc mounting shaft 6 and an auxiliary furrowing disc mounting shaft 5. The position of the main furrowing disc mounting shaft 6 is ahead of the auxiliary furrowing disc mounting shaft 5 by a certain distance, such as 4 cm. The main furrowing disc 1 is rotatably installed on the main furrowing disc mounting shaft 6 through the bearing seat 3 and the bearing 4. The auxiliary furrowing disc 2 is rotatably installed on the auxiliary furrowing disc mounting shaft 5 through the bearing seat 3 and the bearing 4. Correspondingly, the position of the main furrowing disc 1 is ahead of the auxiliary furrowing disc 2 by a certain distance, such as 4 cm. The main furrowing disc mounting shaft 6 and the auxiliary furrowing disc mounting shaft 5 are designed to form a certain angle, such as 170°, so that the front ends of the main furrowing disc 1 and the auxiliary furrowing disc 2 can be brought together to form a combined soil-cutting edge. As Figure 2 , Figure 3 , Figure 4 , where Figure 2 the combined edge is the largest, Figure 3 the combined edge is relatively small, Figure 4 the combined edge of this new type is the smallest. In this way, the combination can greatly reduce the working pressure of furrowing and entering the soil, achieving the purpose of energy conservation and emission reduction;

[0014] As Figure 1 shown, the main furrowing disc mounting shaft 6 can be installed on the left side of the mounting handle 7 or on the right side of the mounting handle 7. Correspondingly, the main furrowing disc 1 can be installed on the left side of the mounting handle 7 or on the right side of the mounting handle 7. Correspondingly, the auxiliary furrowing disc 2 can also be installed on the right side of the mounting handle or on the left side of the mounting handle 7;

[0015] In this specification, the inner side and the outer side are referenced with the mounting handle 7 as the center. The direction of the mounting handle 7 is the inner side, and the position direction of the bearing seat is the outer side. As Figure 1As shown, the cutting edge 8 of the auxiliary ditching disc 2 is close to and faces the mounting handle, that is, the cutting edge 8 is mounted facing inwards, while the cutting edge 8 of the main ditching disc 1 is located away from the mounting handle 7 and faces the bearing seat, so its cutting edge direction is mounted facing outwards; the cutting edges of the main ditching disc 1 and the auxiliary ditching disc 2 are offset cutting edges that are biased to one side; when working, the ditching device moves forward along the ground and uses the front tip synthetic cutting edge to cut open the soil to form a strip-shaped ditch, and this new type can reduce the working load.

[0016] The angles and distances in this specification are all examples and are not used to limit the actual values of this new type. The specific embodiments are also preferred forms and are not the only limiting forms, and the drawings are not necessarily drawn to scale, but for the purpose of explaining the problem.

Claims

1. A disc-type furrowing device for a seed drill, comprising a main furrowing disc, an auxiliary furrowing disc, a bearing seat, a bearing, an auxiliary furrowing disc mounting shaft, a main furrowing disc mounting shaft, a mounting handle, and a disc cutting edge, wherein: The disc cutting edge of the main grooving disc is installed in the direction of the outer bearing seat, and the installation position of the main grooving disc is ahead of the auxiliary grooving disc. The main grooving disc and the auxiliary grooving disc are made of circular steel plates. The edges of the circular steel plates are ground to form disc cutting edges that are biased to one side. The cutting edge of the main grooving disc is installed in the direction of the outer bearing seat, and the cutting edge of the auxiliary grooving disc is still installed in the direction of the inner side. The auxiliary grooving disc is installed backwards staggered relative to the main grooving disc. The cutting edge angle of the main grooving disc is 15°, and the grooving angle of the auxiliary grooving disc is smaller than that of the main grooving disc, so the combined cutting angle into the soil is the smallest, which is 15°. The upper part of the mounting handle is screwed or other It is connected to the seeder in a certain manner, and a main trenching disc mounting shaft and a secondary trenching disc mounting shaft are fixedly mounted on the lower part of the mounting handle. The main trenching disc mounting shaft is positioned ahead of the secondary trenching disc mounting shaft. The main trenching disc is rotatably mounted on the main trenching disc mounting shaft through a bearing seat and a bearing, and the secondary trenching disc is rotatably mounted on the secondary trenching disc mounting shaft through a bearing seat and a bearing. Accordingly, the main trenching disc is positioned ahead of the secondary trenching disc, and an angle is designed between the main trenching disc mounting shaft and the secondary trenching disc mounting shaft, so that the front ends of the main trenching disc and the secondary trenching disc can be brought together to form a combined soil cutting edge.

2. A disc-type furrowing device for a seed drill according to claim 1, characterized in that: The main grooving disc mounting shaft can be installed on the left side of the mounting handle or on the right side of the mounting handle. Correspondingly, the main grooving disc can be installed on the left side of the mounting handle or on the right side of the mounting handle. Correspondingly, the auxiliary grooving disc can be installed on the right side of the mounting handle or on the left side of the mounting handle.

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