Reciprocating extrusion strip seed bed construction monomer

Abstract

The reciprocating motion extrusion type strip seed bed construction unit belongs to agricultural machinery; the hanging arms are installed symmetrically and at a distance on the connecting frame, and the strip seed bed soil, straw, and stubble crushing and cutting device composed of end cam A, sawtooth disc coulter, spring seat A, sprocket A, knife shaft, push rod A, pressure spring A, and plane thrust bearing A and the operation auxiliary device composed of end gear B, depth-limiting anti-skid straw pressing wheel, spring seat B, sprocket B, wheel shaft, push rod B, pressure spring B, and plane thrust bearing B are installed on the hanging arms at the same time, and the chain is set on the sprocket A and sprocket B; this unit utilizes the rotation and axial reciprocating motion of the sawtooth disc coulter to complete the strip seed bed soil and stubble chopping, and at the same time, it performs inward opposite extrusion crushing and gathering aggregation of the strip seed bed soil, and has the characteristics of unique and reasonable structure, low power consumption, good quality of constructed strip seed bed, and high operation efficiency.

Description

Technical Field

[0001] The invention belongs to agricultural machinery, and mainly relates to an operating unit suitable for constructing a tillage mode with a strip seed bed. Background Art

[0002] Strip seed bed construction is a tillage mode that reasonably loosens the soil and straw stubble in the tillage layer of uncultivated land to obtain a strip seed bed suitable for seeding operations by a seed drill. Its operating components play a vital role in the quality and efficiency of strip seed bed construction. At present, the existing strip seed bed construction device is mainly based on an active rotating structure. During operation, the high-speed rotating rotary tillage tool cuts and loosens the soil and straw stubble at the seed bed. There are technical problems such as large power consumption, severe machine vibration, large losses of seed bed soil being thrown out of the strip, and poor seed bed quality. In addition, the passive plowing strip seed bed construction device adopts a structure of installing two fixed opposite disc coulters. During operation, the two disc coulters passively rotate under the action of soil resistance, and the strip loosening operation is performed on the soil at the relatively inner side of the two disc coulters. In production and use practice, it is found that the structural device has obviously insufficient disturbance and crushing ability for the seed bed soil and shredding ability for the stubble straw, the quality of the strip seed bed is poor, and the operation depth is unstable, which cannot meet the technical requirements of mechanical sowing for the strip seed bed. Summary of the invention

[0003] The purpose of the present invention is to address the problems existing in the above-mentioned prior art, combine with the current actual needs for the construction and use of strip seed beds, and study a new structure of reciprocating extrusion type strip seed bed construction unit, so as to achieve good operation quality, high operation efficiency and provide excellent strip seed beds for mechanized precision seeding operations.

[0004] The purpose of the invention is achieved as follows: symmetrical and spaced hanging arms are installed on the connecting frame, and end face cams A and end face cams B are fixedly installed on the hanging arms 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 movable and inserted 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 side 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 on the spring seat A, and a sawtooth disc plow is fixedly installed on the inner end of the cutter shaft. A self-lubricating sleeve B is fixedly installed in the center hole of the end face cam B, and the 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, and the sprocket B is fixed to the spring seat B. 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 reciprocating motion extrusion type strip seed bed construction unit.

[0005] The present invention utilizes the rotational motion and axial reciprocating motion of the sawtooth disc coulter to complete the operation of chopping the soil, straw and stubble on the strip, while also squeezing the soil of the strip seed bed inward, which not only avoids the loss of the soil of the strip seed bed, but also has a good soil crushing effect. At this time, with the cooperation of the depth-limiting and anti-skid straw-pressing wheel that rotates synchronously with the sawtooth disc coulter and moves axially repeatedly, the soil and straw crushing effects 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 the constructed strip seed bed and high operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a schematic diagram of the overall structure of a reciprocating extrusion strip seed bed construction unit;

[0007] Figure 2 yes Figure 1 A partial view of the

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

[0009] Figure 4 yes Figure 3 Partial cross-sectional view along the C-C line.

[0010] Description of part numbers in the figure:

[0011] 1. Connecting frame, 2. Hanging arm, 3. End cam A, 4. Sawtooth disc plow, 5. Spring seat A, 6. Sprocket A, 7. Depth-limiting anti-skid straw pressing wheel, 8. End cam B, 9. Spring seat B, 10. Sprocket B, 11. Cutter shaft, 12. Push rod A, 13. Self-lubricating bushing A, 14. Pressure spring A, 15. Plane thrust bearing A, 16. Wheel axle, 17. Push rod B, 18. Self-lubricating bushing B, 19. Pressure spring B, 20. Plane thrust bearing B, 21. Chain. DETAILED DESCRIPTION

[0012] The following is a detailed description of the implementation scheme of the invention in conjunction with the accompanying drawings. A reciprocating extrusion strip seed bed construction unit, with hanging arms 2 installed symmetrically and at a distance on a connecting frame 1, and end face cams A3 and B8 fixedly installed on the hanging arms 2 with their axis lines parallel to each other; a self-lubricating sleeve A13 is fixedly installed in the center hole of the end face cam A3, and a knife shaft 11 with a push rod A12 is radially positioned, circumferentially rotatable, and axially movable, and is plugged and installed in the sleeve hole of the self-lubricating sleeve A13, and the push rod A12 is inserted into the end face cam A13. 3 is in contact with each other, a spring seat A5 is fixedly mounted on the knife shaft 11 and located at the outer side of the self-lubricating sleeve A13 through a plane thrust bearing A15, a pressure spring A14 is sleeved on the knife shaft 11 and located in the spring seat A5, the inner and outer end faces of the pressure spring A14 are in contact with the end face cam A3 and the plane thrust bearing A15 respectively, a sprocket A6 is fixedly mounted on the outer end of the knife shaft 11, the sprocket A6 is fixedly mounted on the spring seat A5, and is fixedly mounted on the inner end of the knife shaft 11 The sawtooth disc plow 4 is fixedly installed; the self-lubricating sleeve B18 is fixedly installed in the center hole of the end face cam B8, and the wheel shaft 16 with a push rod B17 is radially positioned, circumferentially rotatable, and axially movable. The push rod B17 is in contact with the end face cam B8. A spring seat B9 is fixedly installed on the wheel shaft 16 and located at the outer side of the self-lubricating sleeve B18 through a plane thrust bearing B20. The pressure spring B19 is sleeved on the wheel shaft 16. The wheel shaft 16 is on the upper surface of the wheel shaft 16, and is located in the spring seat B9. The inner and outer end faces of the pressure spring B19 are respectively in contact with the end face cam B8 and the plane thrust bearing B20. The sprocket B10 is fixedly mounted on the outer end of the wheel shaft 16. The sprocket B10 is fixedly mounted with the spring seat B9. The depth-limiting and anti-skid straw-pressing wheel 7 is fixedly mounted on the inner end of the wheel shaft 16. The chain 21 is mounted on the sprocket A6 and the sprocket B10. The lowest point of the depth-limiting and anti-skid straw-pressing wheel 7 is higher than the lowest point of the serrated disc coulter 4.

[0013] During operation, the unit is mounted on the working machine by the connecting frame 1 and moved forward. Under the resistance of the ground soil, the depth-limiting and anti-skid straw-pressing wheels 7 rotating on both sides drive the relatively arranged sawtooth disc coulter 4 to rotate through the wheel shaft 16, sprocket B10, chain 21, sprocket A6, and knife shaft 11 to cut and crush the soil, straw, and stubble at the strip seedbed; at the same time, the rotating knife shaft 11 and wheel shaft 16 respectively drive the push rod A12 and push rod B17 to rotate, and the push rod A12 drives the sawtooth disc coulter 4 through the knife shaft 11 under the joint control of the end face cam A3 and the pressure spring A14. , spring seat A5, and sprocket A6 make axial reciprocating motion on the self-lubricating sleeve A13 together, and the serrated disc coulters 4 on opposite sides complete the soil extrusion, crushing and gathering operations of the strip seed bed; the push rod B17, under the joint control of the end face cam B8 and the pressure spring B19, drives the depth-limiting and anti-skid straw pressing wheel 7, the spring seat B9, and the sprocket B10 on the self-lubricating sleeve B18 through the wheel axle 16 to make axial reciprocating motion on the self-lubricating sleeve B18 synchronously, in the same direction, at the same frequency, and with the same amplitude as the serrated disc coulter 4, so as to ensure the operating quality and effect of the serrated disc coulter 4.

Claims

1. A reciprocating extrusion strip seed bed construction monomer, characterized in that: A suspension arm (2) is installed on the connecting frame (1) symmetrically and at a distance from each other, and an end face cam A (3) and an end face cam B (8) are fixedly installed on the suspension arm (2) with their axis lines parallel to each other; a self-lubricating sleeve A (13) is fixedly installed in the center hole of the end face cam A (3), and a knife shaft (11) with a push rod A (12) is radially positioned, circumferentially rotatable, and axially movable. The push rod A (12) is in contact with the end face cam A (3) and is mounted on the knife shaft (11). A spring seat A (5) is fixedly mounted on the outer side of the self-lubricating sleeve A (13) through a plane thrust bearing A (15). A pressure spring A (14) is sleeved on the cutter shaft (11) and is located in the spring seat A (5). The inner and outer end surfaces of the pressure spring A (14) are in contact with the end cam A (3) and the plane thrust bearing A (15) respectively. A sprocket A (6) is fixedly mounted on the outer end of the cutter shaft (11). The sprocket A (6) is fixedly mounted on the spring seat A (5). A sawtooth disc plow (4) is fixedly mounted on the inner end of the cutter shaft (11). ); a self-lubricating sleeve B (18) is fixedly installed in the center hole of the end face cam B (8); a wheel shaft (16) with a push rod B (17) is radially positioned, circumferentially rotatable, and axially movable, and is inserted and installed in the sleeve hole of the self-lubricating sleeve B (18); the push rod B (17) is in contact with the end face cam B (8); a spring seat B (9) is fixedly installed on the wheel shaft (16) and located at the outer side of the self-lubricating sleeve B (18) through a plane thrust bearing B (20); a pressure spring B (19) is sleeved on the wheel shaft (16); and Located in the spring seat B (9), the inner and outer end faces of the pressure spring B (19) are in contact with the end face cam B (8) and the plane thrust bearing B (20) respectively; the sprocket B (10) is fixedly mounted on the outer end of the wheel shaft (16); the sprocket B (10) is fixedly mounted on the spring seat B (9); a depth-limiting anti-skid straw pressing wheel (7) is fixedly mounted on the inner end of the wheel shaft (16); the chain (21) is sleeved on the sprocket A (6) and the sprocket B (10); the lowest point of the depth-limiting anti-skid straw pressing wheel (7) is higher than the lowest point of the sawtooth disc coulter (4).

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