No-till seeding reciprocating motion two-way side-push seed furrow opener

Abstract

The no-tillage sowing reciprocating motion bidirectional side-pushing seed furrow opener belongs to agricultural machinery; a strip seed bed soil, straw, and root stubble crushing and cutting device consisting of an end cam A, a sawtooth disc coulter, a spring seat A, a sprocket A, a knife shaft, a push rod A, a pressure spring A, and a plane thrust bearing A is installed on the hanging arm at the same time, and an operation auxiliary device consisting of an end gear B, a depth-limiting anti-skid straw pressing wheel, a spring seat B, a sprocket B, a wheel shaft, a push rod B, a pressure spring B, and a plane thrust bearing B is installed, and a chain is set on the sprocket A and the sprocket B; the device utilizes the rotation and axial reciprocating motion of the sawtooth disc coulter to complete the cutting of the strip seed furrow soil and root stubble, and at the same time, it lateral squeezes and pushes the root stubble on the strip seed furrow, and has the characteristics of unique and reasonable structure, low power consumption, good quality of the opened strip seed furrow, and high operation efficiency, providing technical support for the promotion and application of no-tillage sowing agronomic methods.

Description

Technical Field

[0001] The invention belongs to agricultural machinery, and mainly relates to a seed furrow opener suitable for no-till seeding operation. Background Art

[0002] No-till seeding is a new dryland farming technology that has been successfully developed in recent years and promoted and applied in Heilongjiang, Jilin and other regions in northern my country. In order to adapt to and meet the needs of this method, various no-till fertilization and seeding machines have been developed. The key technical difficulty lies in the construction of no-till seeding furrows, that is, how to reliably, accurately and effectively cut and break the root stubble of the previous season's crops on the strip of the seed bed or push them out of the seed furrow as a whole to form a good seed furrow, which provides convenience for subsequent no-till seeding. However, since the existing no-till fertilization and seeding machines mostly use a single stubble-breaking disc knife for stubble breaking operations, it is found in practical use that not only the stubble breaking effect is poor, but also there is no lateral pushing structure and function for the stubble. The constructed strip seed furrow cannot adapt to and meet the requirements of no-till seeding operations, and the operation quality is poor, which restricts the promotion and application of advanced no-till seeding agronomic technology methods. Summary of the invention

[0003] The purpose of the present invention is to address the problems existing in the above-mentioned prior art, and in combination with the actual needs of no-till seeding for strip seed furrow opening operations, to study a new structure of no-till seeding reciprocating motion bidirectional side-push seed furrow opener, so as to achieve good operation quality, high operation efficiency, and provide high-quality seed furrows for no-till seeding mechanized operations.

[0004] The purpose of the invention is achieved as follows: an end face cam A and an end face cam B are fixedly installed on a hanging arm with their axis lines parallel to each other; a self-lubricating sleeve A is fixedly installed in the center hole of the end face cam A, and a cutter shaft with a push rod A is radially positioned, circumferentially rotatable, and axially movably inserted and installed in the sleeve hole of the self-lubricating sleeve A, the push rod A is in contact with the end face cam A, and a spring seat A is fixedly installed on the cutter shaft and located at the outer part of the self-lubricating sleeve A through a plane thrust bearing A, the pressure spring A is sleeved on the cutter shaft and located in the spring seat A, and the inner and outer end faces of the pressure spring A are in contact with the end face cam A and the plane thrust bearing A respectively, a sprocket A is fixedly installed on the outer end of the cutter shaft, the sprocket A is fixedly installed with the spring seat A, and a sawtooth disc plow is fixedly installed on the inner end of the cutter shaft; at the center of the end face cam B A self-lubricating sleeve B is fixedly installed in the hole, and a wheel axle with a push rod B is radially positioned, circumferentially rotatable, and axially movably inserted and installed in the sleeve hole of the self-lubricating sleeve B. The push rod B is in contact with the end face cam B. A spring seat B is fixedly installed on the wheel axle and located at the outer side of the self-lubricating sleeve B through a plane thrust bearing B. The pressure spring B is sleeved on the wheel axle and located in the spring seat B. The inner and outer end faces of the pressure spring B are in contact with the end face cam B and the plane thrust bearing B respectively. The sprocket B is fixed on the outer end of the wheel axle. The sprocket B is fixed to the spring seat B, and a depth-limiting and anti-skid straw pressing wheel is fixed on the inner end of the wheel axle; the chain is sleeved on the sprocket A and the sprocket B; the lowest point of the depth-limiting and anti-skid straw pressing wheel is higher than the lowest point of the sawtooth disc coulter, thereby constituting a no-tillage sowing reciprocating bidirectional side-push seed furrow opener.

[0005] The present invention utilizes the rotational motion and axial reciprocating motion of the sawtooth disc coulter to complete the cutting operation of the soil, straw and stubble on the strip seed furrow, and at the same time pushes the stubble, straw and soil on the strip seed furrow laterally. At this time, with the cooperation of the depth-limiting and anti-skid straw-pressing wheel which rotates synchronously with the sawtooth disc coulter and moves axially repeatedly, the soil and straw crushing effect of the sawtooth disc coulter and the precise consistency of the plowing depth are guaranteed and improved. The present invention has the characteristics of unique, novel and reasonable structure, low operating power consumption, good quality of constructed strip seed furrow and high operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a schematic diagram of the overall structure of a no-tillage sowing reciprocating motion bidirectional side-pushing seed furrow opener;

[0007] Figure 2 yes Figure 1 A-direction view;

[0008] Figure 3 yes Figure 2 B-B sectional view;

[0009] Figure 4 yes Figure 3 C-C section view.

[0010] Description of part numbers in the figure:

[0011] 1. Suspension arm, 2. End cam A, 3. Sawtooth disc plow cutter, 4. Spring seat A, 5. Sprocket A, 6. Depth-limiting anti-skid straw pressing wheel, 7. End cam B, 8. Spring seat B, 9. Sprocket B, 10. Cutter shaft, 11. Push rod A, 12. Self-lubricating bushing A, 13. Pressure spring A, 14. Plane thrust bearing A, 15. Wheel axle, 16. Push rod B, 17. Self-lubricating bushing B, 18. Pressure spring B, 19. Plane thrust bearing B, 20. Chain. DETAILED DESCRIPTION

[0012] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. A no-tillage sowing reciprocating bidirectional side-pushing seed furrow opener comprises an end face cam A2 and an end face cam B7 whose axis lines are parallel to each other on a hanging arm 1; a self-lubricating sleeve A12 is fixedly installed in the center hole of the end face cam A2; a cutter shaft 10 with a push rod A11 is radially positioned, circumferentially rotatable, and axially movable and plugged into the sleeve hole of the self-lubricating sleeve A12; the push rod A11 is in contact with the end face cam A2; a spring seat A4 is fixedly installed on the cutter shaft 10 and located at the outer part of the self-lubricating sleeve A12 through a plane thrust bearing A14; a pressure spring A13 is sleeved on the cutter shaft 10 and located in the spring seat A4; the inner and outer end faces of the pressure spring A13 are in contact with the end face cam A2 and the plane thrust bearing A14 respectively; a sprocket A5 is fixedly installed on the outer end of the cutter shaft 10; the sprocket A5 is fixedly installed with the spring seat A4; a sawtooth disc coulter is fixedly installed on the inner end of the cutter shaft 10 3. A self-lubricating sleeve B17 is fixedly installed in the center hole of the end face cam B7. The wheel shaft 15 with a push rod B16 is radially positioned, circumferentially rotatable, and axially movable. The push rod B16 is in contact with the end face cam B7. A spring seat B8 is fixed on the wheel shaft 15 and located at the outer side of the self-lubricating sleeve B17 through a plane thrust bearing B19. The pressure spring B18 is sleeved on the wheel shaft 15. On it, and located in the spring seat B8, the inner and outer end faces of the pressure spring B18 are in contact and cooperate with the end face cam B7 and the plane thrust bearing B19 respectively, the sprocket B9 is fixedly mounted on the outer end of the wheel axle 15, the sprocket B9 is fixedly mounted with the spring seat B8, and the depth-limiting and anti-skid straw-pressing wheel 6 is fixedly mounted on the inner end of the wheel axle 15; the chain 20 is mounted on the sprocket A5 and the sprocket B9; the lowest point of the depth-limiting and anti-skid straw-pressing wheel 6 is higher than the lowest point of the serrated disc coulter 3.

[0013] During operation, the seed furrow opener is mounted on the working machine and moved forward. Under the resistance of the ground soil, the rotating depth-limiting anti-skid straw-pressing wheel 6 drives the sawtooth disc coulter 3 to rotate through the wheel shaft 15, sprocket B9 chain 20, sprocket A5, and knife shaft 10 to cut and crush the soil, straw, and stubble at the strip seed furrow; at the same time, the rotating knife shaft 10 and wheel shaft 15 respectively drive the push rod A11 and push rod B16 to rotate, and the push rod A11 drives the sawtooth disc coulter 3 and the spring seat through the knife shaft 10 under the joint control of the end face cam A2 and the pressure spring A13. A4 and sprocket A5 make axial reciprocating motion on the self-lubricating sleeve A12 together, and the serrated disc coulter 3 completes the lateral pushing operation of the root stubble, straw and soil at the strip seed furrow; the push rod B16, under the joint control of the end face cam B7 and the pressure spring B18, drives the depth-limiting anti-skid straw-pressing wheel 6, the spring seat B8 and the sprocket B9 on the self-lubricating sleeve B17 through the wheel axle 15 to make axial reciprocating motion synchronously, in the same direction, at the same frequency and with the same amplitude as the serrated disc coulter 3, so as to ensure the working quality and effect of the serrated disc coulter 3.

Claims

1. A no-tillage sowing reciprocating bidirectional side-pushing seed furrow opener, characterized in that: An end face cam A (2) and an end face cam B (7) are fixedly mounted on a hanging arm (1) with their axis lines parallel to each other; a self-lubricating sleeve A (12) is fixedly mounted in the center hole of the end face cam A (2); a cutter shaft (10) with a push rod A (11) is radially positioned, circumferentially rotatable, and axially movable and plugged into the sleeve hole of the self-lubricating sleeve A (12); the push rod A (11) is in contact with the end face cam A (2); a self-lubricating sleeve A (12) is provided on the cutter shaft (10) at a position outside the self-lubricating sleeve A (12). The plane thrust bearing A (14) is fixedly mounted on the spring seat A (4), the pressure spring A (13) is mounted on the cutter shaft (10) and is located in the spring seat A (4), the inner and outer end faces of the pressure spring A (13) are respectively in contact with the end face cam A (2) and the plane thrust bearing A (14), the sprocket A (5) is fixedly mounted on the outer end of the cutter shaft (10), the sprocket A (5) is fixedly mounted on the spring seat A (4), and the sawtooth disc plow (3) is fixedly mounted on the inner end of the cutter shaft (10); the end face cam B (7 ), a self-lubricating sleeve B (17) is fixedly installed in the center hole of the self-lubricating sleeve B (17), a wheel shaft (15) with a push rod B (16) is radially positioned, circumferentially rotatable, and axially movable, and is inserted and installed in the sleeve hole of the self-lubricating sleeve B (17), the push rod B (16) is in contact with the end face cam B (7), a spring seat B (8) is fixedly installed on the wheel shaft (15) and located at the outer side of the self-lubricating sleeve B (17) through a plane thrust bearing B (19), and the pressure spring B (18) is sleeved on the wheel shaft (15) and located at the spring seat B (8), the inner and outer end faces of the pressure spring B (18) are in contact with the end face cam B (7) and the plane thrust bearing B (19) respectively; the sprocket B (9) is fixedly mounted on the outer end of the wheel shaft (15); the sprocket B (9) is fixedly mounted on the spring seat B (8); a depth-limiting anti-skid straw pressing wheel (6) is fixedly mounted on the inner end of the wheel shaft (15); the chain (20) is sleeved on the sprocket A (5) and the sprocket B (9); the lowest point of the depth-limiting anti-skid straw pressing wheel (6) is higher than the lowest point of the sawtooth disc coulter (3).

Images