Bionic ditching and compacting device

Abstract

The utility model belongs to the field of agricultural machinery, and particularly relates to a bionic ditching and pressing device which comprises a ditching device and a seed furrow pressing device. The working section of a seed furrow pressing wheel in the seed furrow pressing device is a spider silk-like spindle knot curve, the equation of the spider silk-like spindle knot curve is y = 0.0397 * 2-0.9936 x + 6.3198, the value range of x is 0-25 mm, and the value range of y is 0-6.3198 mm. The device can realize the functions of ditching, seed furrow pressing and furrow shape construction, after seed furrow pressing, macropores of soil at the bottom of a seed furrow are reduced, the proportion of small pores is increased, the capillary effect of soil moisture is enhanced, and the moisture retention capacity of a seedbed is improved; a spider silk-like spindle knot curve ditch bottom formed by the bionic working section of the seed ditch press wheel has a certain water collecting effect; the formed seedbed environment is good in soil moisture content, corn seed germination and seedling emergence are facilitated, and the problem of seedbed moisture loss caused by traditional V-shaped seed ditches is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the agricultural machinery technical field relates to a kind of bionic ditching and compacting device. BACKGROUND

[0002] Ditcher is the key component of seeding machine, its main function is to open seed ditch, constructs ditch shape, for seed landing, after covering soil compaction, for seed growth and development to provide good seedbed environment of soil condition. The role of seed trench compaction is to exert moderate pressure on the bottom of seed trench soil, so that the soil under the seed is compacted, the large pore is reduced to enhance the capillary action, so as to improve the water retention capacity of seedbed, and also has the role of seed trench shaping. As an important food crop in northwest arid area, corn seed germination needs sufficient water, and the existing corn no-tillage seeder (such as Shandong Leivo MS82006 no-tillage seeder) mostly uses double-disc ditcher, and lacks seed trench compaction capacity, the water retention capacity of seedbed formed by V-shaped seed ditch is insufficient, which easily leads to the loss of seedbed environment, and further affects the germination and emergence of corn seeds.

[0003] In nature, the phenomenon of water droplets gathering on wet spider web is caused by the directional migration of Laplace pressure difference generated by the periodic spindle knot structure. Based on this bionic principle, a bionic ditching and compacting device is designed, which is of great significance to improve the water retention capacity of seedbed, form a good seedbed environment, promote the germination of corn seeds and improve the emergence rate. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of bionic ditching and compacting device, can open a kind of seed ditch with the bionic curve characteristics of spider silk spindle knot at bottom, form a good seedbed environment after sowing, covering soil, compacting operation, solve the problem of seedbed environment loss caused by traditional V-shaped seed ditch.

[0005] The technical scheme adopted by the utility model is: a kind of bionic ditching and compacting device, including sliding knife, extruding soil side plate, bolt, rack, limit slot, limit rod, seed guide tube, wheel frame, seed trench compaction wheel, spring, pin. The bionic ditching and compacting device is mainly divided into ditching device and seed trench compaction device two parts, wherein, ditching device includes: extruding soil side plate is symmetrically welded on the both sides of sliding knife, sliding knife is fixed on rack by bolt. Seed trench compaction device includes: limit rod is hinged on rack by pin, limit rod is equipped with positioning hole, is connected with spring, wheel frame is hinged in the middle part of rack, one side is equipped with positioning hole and is connected with spring, one side is connected with seed trench compaction wheel. Seed guide tube is welded on the tail of rack.

[0006] Further, the working section curve of seed trench compaction wheel in the seed trench compaction device is the curve of spider silk spindle knot, and its equation is: y=0.0397x 2 -0.9936x+6.3198 Wherein, the value range of x is 0-25 mm, and the value range of y is 0-6.3198 mm.

[0007] The bionic ditching and pressing device can realize ditching, ditch pressing, ditch shape construction, reduces large pores of the soil at the bottom of the ditch after the ditch pressing, improves the proportion of small pores, enhances the capillary action of the soil, and improves the water retention capacity of the seedbed; the bottom of the curve ditch formed by the bionic working section of the ditch pressing wheel has a certain water collecting effect; and the final formed seed ditch can form a good seedbed environment after sowing, covering and pressing operations, which is beneficial to corn seed germination and emergence. BRIEF DESCRIPTION OF DRAWINGS

[0008] In order to more clearly illustrate the characteristics of the bionic ditching and pressing device and the ditch shape of the formed seed ditch, the following drawings further illustrate.

[0009] Figure 1 is a schematic view of the bionic ditching and pressing device.

[0010] Figure 2 is a partial cross-sectional view of the bionic ditching and pressing device.

[0011] Figure 3 is a schematic view of the working section of the ditch pressing wheel of the bionic ditching and pressing device (a) and a schematic view of the constructed ditch shape (b).

[0012] In the figure: 1. sliding knife, 2. soil extruding side plate, 3. bolt, 4. frame, 5. pin, 6. limiting slot, 7. limiting rod, 8. seed guiding pipe, 9. wheel frame, 10. pin, 11. seed ditch pressing wheel, 12. pin, 13. spring, 14. spider silk spindle knot curve, 15. soil particle. DETAILED DESCRIPTION

[0013] The structure and the purpose to be achieved of the present application will be further illustrated below in combination with the drawings.

[0014] The structure of the present application is shown in Figure 1 The bionic ditching device mainly comprises a ditching device and a seed ditch pressing device, the ditching device: the soil extruding side plates 2 are symmetrically welded to the rear parts of the two sides of the sliding knife 1, and the sliding knife 1 is fixed on the frame 4 through the bolt 3. The seed guiding pipe 8 is welded to the tail part of the frame 4.

[0015] As Figure 2As shown in the figure, a furrow compacting device: wheel frame 9 is hinged in the middle of the frame 4, one side of the wheel frame 9 is provided with a positioning hole connected with the spring 13, the other side is connected with the furrow compacting wheel 11; the limiting rod 7 is connected with the frame 4 through the pin 5, the limiting rod 7 is provided with a positioning hole connected with the spring 13, the limiting rod 7 is clamped in the limiting slot 6 on the frame 4; by adjusting the position of the limiting rod 7 in the limiting slot 6, the tension of the spring 13 is adjusted, and then the furrow compacting wheel 11 obtains different pressure.

[0016] As Figure 3 As shown in the figure, the working section profile curve of the furrow compacting wheel 11 is a spider silk spindle knot curve, and its equation is: y=0.0397x 2 -0.9936x+6.3198 Wherein, the value range of x is 0~25 mm, and the value range of y is 0~6.3198 mm.

[0017] The working principle of the bionic furrow compacting device is: the corn no-tillage seeder starts to work, the sliding knife 1 cuts the soil to form a narrow groove, the soil extruding side plate 2 widens the seed furrow, and the seed furrow is preliminarily formed; the furrow compacting wheel 11 crushes the groove at the bottom of the seed furrow, and forms a compact surface with the characteristics of a spider silk spindle knot curve at the bottom of the seed furrow, and the seed furrow is finally formed. After the seed furrow is compacted, the soil is compacted, the soil capillary effect is enhanced, the bottom of the formed spider silk spindle knot curve seed furrow can gather water under the action of Laplace pressure difference, the water retention capacity of the seedbed is improved, and after the work of the seeding, soil covering and compacting parts, a good seedbed environment is formed, which is beneficial to the germination and emergence of corn seeds. The compacting strength of the seed furrow can be adjusted according to the soil state and crop demand by adjusting the position of the limiting rod 7 in the limiting slot 6, and the higher the position, the greater the compacting strength.

[0018] Those skilled in the art should appreciate that various changes and / or modifications can be made to the application shown in each particular embodiment without departing from the spirit and scope of the application as generally described. Therefore, the above description is merely preferred embodiments of the application, and is not intended to limit the protection scope of the application. Similarly, the present application includes any combination of features, especially any combination of features in the patent claims, even if the features or combinations of features are not explicitly stated in the patent claims or the embodiments herein.

Claims

1. A biomimetic furrow packing device, characterized in that, It includes sliding knife (1), extruding side plate (2), bolt (3), frame (4), pin (5), limiting slot (6), limiting rod (7), guide tube (8), wheel frame (9), pin (10), seed furrow roller (11), pin (12), spring (13), the bionic ditching and pressing device: extruding side plate (2) is symmetrically welded on both sides of the rear of sliding knife (1), sliding knife (1) is fixed on frame (4) by bolt (3), guide tube (8) is welded on the tail of frame (4); wheel frame (9) is hinged in the middle of frame (4), one side of wheel frame (9) is provided with positioning hole and is connected with spring (13), the other side is connected with seed furrow roller (11); limiting rod (7) is connected with frame (4) through pin (5), limiting rod (7) is provided with positioning hole and is connected with spring (13), limiting rod (7) is clamped in limiting slot (6) on frame (4); by adjusting the position of limiting rod (7) in limiting slot (6), the tension of spring (13) is adjusted, and then the seed furrow roller (11) obtains different pressure, the higher the position in limiting slot (6), the greater the pressure obtained by seed furrow roller (11).

2. The bionic furrow opening and compacting device according to claim 1, characterized in that The working section curve of the seed fur compacting wheel (11) is a y=0.0397x 2 -0.9936x+6.3198, wherein the value range of x is 0-25 mm, and the value range of y is 0-6.3198 mm.

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