Straw smashing, returning and stubble cleaning device

Abstract

The utility model belongs to the technical field of agricultural machinery, and particularly relates to a straw smashing, field returning and stubble cleaning device which comprises a frame body, a soil turning and stubble cleaning mechanism and a conveying mechanism are sequentially arranged at the bottom of the frame body from right to left, a smashing box is fixedly connected to the left side of the frame body, and two first motors are fixedly connected to the front side of the smashing box. Output shafts of the two first motors are fixedly connected with smashing rollers used for smashing straw, a protruding block is fixedly connected into the smashing box, a smashing and scattering mechanism is arranged between the protruding block and the smashing box, and discharging openings are formed in the two sides of the bottom of the smashing box. The straw smashing device is reasonable in structural design, the straw smashing effect is better through double smashing of the smashing roller and the smashing cutter, smashed straw can be evenly and comprehensively thrown into a field through rotation of the throwing disc, the straw and soil mixing effect is greatly improved, and reliability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a straw crushing and returning to the field stubble eliminating device. Background Art

[0002] There are many forms of returning straw to the fields, which can be divided into five categories: straw crushing and pressing, straw mulching, composting, burning, and returning to the fields through the stomach. Straw crushing and pressing, which involves mechanically crushing the harvested straw, plowing the field, and directly pressing it into the soil, has four advantages: 1. Improving the physical and chemical properties of the soil; 2. Retaining the nutrients in the straw in the soil; 3. Improving the utilization rate of chemical fertilizers; and 4. Improving the drought and salinity resistance of crops.

[0003] After searching: China's patent number CN216254001U is an intelligent balanced straw return and stubble crushing machine, which includes a fixed shell and an agricultural machinery vehicle. A fixed shaft is rotatably connected between the left and right inner walls of the fixed shell. Multiple groups of crushing blades are fixedly connected to the fixed shaft. Each group of multiple crushing blades is centrally symmetrically distributed about the center of the corresponding fixed shaft cross section. A motor is fixedly connected to one side wall of the fixed shell, and the position of the motor corresponds to the fixed shaft.

[0004] However, the above-mentioned straw crushing and returning to the field stubble killing device still has some shortcomings. The stubble is killed by the stubble killing knife, and the straw is crushed by the crushing knife, which makes the straw crushing effect poor. In addition, the crushed straw is not convenient to be evenly and comprehensively thrown into the field, which reduces the effect of the straw being fully mixed with the soil. Therefore, we propose a straw crushing and returning to the field stubble killing device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the above-mentioned shortcomings and to propose a straw crushing and returning to the field stubble eliminating device.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A straw crushing and returning to the field stubble destroying device comprises a frame, the bottom of which is provided with a soil turning and stubble destroying mechanism and a conveying mechanism from right to left in sequence, a crushing box is fixedly connected to the left side of the frame, two motors are fixedly connected to the front side of the crushing box, and crushing rollers for crushing straw are fixedly connected to the output shafts of the two motors, a protrusion is fixedly connected inside the crushing box, a crushing and scattering mechanism is provided between the protrusion and the crushing box, and discharge ports are provided on both sides of the bottom of the crushing box.

[0008] As a preferred embodiment of the present invention, two traction frames are fixedly connected to the top of the frame body, and connection holes are opened on the front sides of the traction frames.

[0009] As a preferred embodiment of the present invention, the soil turning and stubble destroying mechanism includes two support plates 1 fixedly connected to the bottom of the frame, a soil turning roller is rotatably connected between the two support plates 1, the front side of the front support plate 1 is fixedly connected to a motor 2, and the output shaft of the motor 2 is fixedly connected to the front end of the soil turning roller.

[0010] As a preferred embodiment of the present invention, a plurality of blades are fixedly connected to the outer side of the soil-turning roller.

[0011] As a preferred embodiment of the present invention, the conveying mechanism includes motor three, an active roller and a driven roller, the active roller and the driven roller are connected to the same conveyor belt, the output shaft of motor three is fixedly connected to the front end of the active roller, and a plurality of baffles are fixedly connected to the outside of the conveyor belt.

[0012] As a preferred embodiment of the present invention, the bottom of the frame is fixedly connected to two support plates 2, the driven roller is rotatably connected between the two support plates 2, the top of the crushing box is fixedly connected to a support plate 3, the active roller is rotatably connected between the two support plates 3, and the motor 3 is fixedly connected to the front side of the front support plate 3.

[0013] As a preferred embodiment of the present invention, the crushing and scattering mechanism includes a motor four fixedly connected to the front side of the crushing box, two upper rotating shafts rotatably connected to the top of the protrusion, a driving shaft fixedly connected to the output shaft of the motor four, two active bevel gears are fixedly sleeved on the outer side of the driving shaft, the bottom ends of the two upper rotating shafts are fixedly connected to the upper bevel gears, the two active bevel gears are respectively engaged with the corresponding upper bevel gears, and multiple crushing knives are fixedly connected to the outer sides of the two upper rotating shafts.

[0014] As a preferred embodiment of the present invention, the crushing and scattering mechanism also includes two lower rotating shafts rotatably connected to the bottom of the protrusion, the top ends of the two lower rotating shafts are fixedly connected to lower bevel gears, the two active bevel gears are respectively engaged with the corresponding lower bevel gears, and the bottom ends of the two lower rotating shafts are fixedly connected to scattering plates.

[0015] In the utility model, a straw crushing and returning to the field stubble eliminating device is described, wherein a tractor or other traction device is connected to a traction frame, and the rotation of the soil turning roller and the cutter is driven by the second motor in the soil turning and stubble eliminating mechanism, thereby achieving shallow soil turning and stubble eliminating, and the straw and soil after stubble eliminating are transported to the crushing box by the conveyor belt in the conveying mechanism for straw crushing;

[0016] The utility model discloses a straw crushing and returning to field stubble eliminating device, which drives the two crushing rollers to rotate in opposite directions through two motors 1, thereby crushing the straw. The crushed straw is driven by the motor 4 in the crushing and scattering mechanism to rotate the driving shaft and the two active bevel gears, which drive the two upper bevel gears and the upper rotating shaft to rotate, and the upper rotating shaft drives the rotation of multiple crushing knives, thereby crushing the crushed straw again, so that the straw crushing effect is better. The crushed straw will be discharged from the discharging port along the guidance of the protrusion. At the same time, the rotation of the two active bevel gears drives the rotation of the two lower bevel gears, and the two lower bevel gears drive the rotation of the lower rotating shaft and the scattering disk. Under the rotation of the scattering disk, the crushed straw can be evenly and comprehensively scattered into the field, thereby greatly improving the effect of mixing the straw and the soil.

[0017] The utility model has a reasonable structural design. The double crushing of the crushing roller and the crushing knife makes the straw crushing effect better. Through the rotation of the scattering disc, the crushed straw can be evenly and comprehensively scattered into the field, which greatly improves the effect of mixing the straw and the soil and has high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a straw crushing and returning to field stubble eliminating device proposed in the utility model;

[0019] Figure 2 This is a cross-sectional view of a crushing box of a straw crushing and returning to field stubble eliminating device proposed in the present invention;

[0020] Figure 3 for Figure 2 Schematic diagram of the structure of part A;

[0021] Figure 4 This is a three-dimensional diagram of the crushing and scattering mechanism of the straw crushing and returning to the field stubble eliminating device proposed in the utility model.

[0022] In the figure: 1. frame; 2. soil turning and stubble destroying mechanism; 3. conveying mechanism; 4. crushing box; 41. discharge port; 5. traction frame; 6. motor 1; 7. crushing roller; 8. crushing and scattering mechanism; 9. bump; 21. support plate 1; 22. motor 2; 23. soil turning roller; 31. driven roller; 32. support plate 2; 33. support plate 3; 34. active roller; 35. motor 3; 36. conveyor belt; 37. baffle; 81. motor 4; 82. scattering disc; 83. lower rotating shaft; 84. lower bevel gear; 85. drive shaft; 86. upper bevel gear; 87. upper rotating shaft; 88. crushing knife; 89. active bevel gear. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] Reference Figure 1-4 A straw crushing and returning to the field stubble destroying device includes a frame 1. A soil turning and stubble destroying mechanism 2 and a conveying mechanism 3 are arranged on the bottom of the frame 1 from right to left. A crushing box 4 is fixedly connected to the left side of the frame 1. Two motors 6 are fixedly connected to the front side of the crushing box 4. Crushing rollers 7 for crushing straw are fixedly connected to the output shafts of the two motors 6. A protrusion 9 is fixedly connected inside the crushing box 4. A crushing and scattering mechanism 8 is arranged between the protrusion 9 and the crushing box 4. Discharge ports 41 are opened on both sides of the bottom of the crushing box 4.

[0025] Furthermore, two traction frames 5 are fixedly connected to the top of the frame body 1. The front side of the traction frame 5 is provided with a connection hole, which is convenient for connection with a traction device such as a tractor.

[0026] Further, refer to Figure 1 The soil-turning and stubble-killing mechanism 2 includes two support plates 21 fixedly connected to the bottom of the frame 1, a soil-turning roller 23 is rotatably connected between the two support plates 21, a motor 22 is fixedly connected to the front side of the front support plate 21, and the output shaft of the motor 22 is fixedly connected to the front end of the soil-turning roller 23, and a plurality of blades are fixedly connected to the outer side of the soil-turning roller 23.

[0027] By adopting the above solution, the motor 22 in the soil turning and stubble destroying mechanism 2 drives the soil turning roller 23 and the cutter to rotate, thereby achieving shallow soil turning and stubble destroying.

[0028] Further, refer to Figure 1 The conveying mechanism 3 includes a motor 35, an active roller 34 and a driven roller 31. The active roller 34 and the driven roller 31 are connected to the same conveyor belt 36. The output shaft of the motor 35 is fixedly connected to the front end of the active roller 34. A plurality of baffles 37 are fixedly connected to the outside of the conveyor belt 36. The bottom of the frame 1 is fixedly connected to two support plates 2 32. The driven roller 31 is rotatably connected between the two support plates 2 32. The top of the crushing box 4 is fixedly connected to a support plate 33. The active roller 34 is rotatably connected between the two support plates 33. The motor 35 is fixedly connected to the front side of the front support plate 33.

[0029] With the above solution, the motor 3 35 drives the active roller 34 to rotate, and with the assistance of the driven roller 31 , drives the conveyor belt 36 to run, thereby transporting the straw into the crushing box 4 .

[0030] Further, refer to Figure 1-4The crushing and scattering mechanism 8 includes a motor 81 fixedly connected to the front side of the crushing box 4, and two upper rotating shafts 87 rotatably connected to the top of the protrusion 9. The output shaft of the motor 81 is fixedly connected to a drive shaft 85, and two active bevel gears 89 are fixedly sleeved on the outer side of the drive shaft 85. The bottom ends of the two upper rotating shafts 87 are fixedly connected to upper bevel gears 86, and the two active bevel gears 89 are respectively engaged with the corresponding upper bevel gears 86. The outer sides of the two upper rotating shafts 87 are fixedly connected to a plurality of crushing knives 88. The crushing and scattering mechanism 8 also includes two lower rotating shafts 83 rotatably connected to the bottom of the protrusion 9, and the tops of the two lower rotating shafts 83 are fixedly connected to lower bevel gears 84. The two active bevel gears 89 are respectively engaged with the corresponding lower bevel gears 84, and the bottom ends of the two lower rotating shafts 83 are fixedly connected to a scattering disk 82.

[0031] The above scheme is adopted: the crushed straw is driven by the motor 4 81 in the crushing and scattering mechanism 8 to rotate the drive shaft 85 and the two active bevel gears 89, the two active bevel gears 89 drive the rotation of the two upper bevel gears 86 and the upper rotating shaft 87, and the upper rotating shaft 87 drives the rotation of multiple crushing knives 88, thereby crushing the crushed straw again, so that the straw crushing effect is better. After crushing, the straw will be discharged from the discharge port 41 along the guidance of the protrusion 9. At the same time, the rotation of the two active bevel gears 89 drives the rotation of the two lower bevel gears 84, and the two lower bevel gears 84 drive the rotation of the lower rotating shaft 83 and the scattering plate 82. Under the rotation of the scattering plate 82, the crushed straw can be evenly and comprehensively scattered into the field, greatly improving the effect of mixing the straw with the soil.

[0032] In the present invention, when in use, a tractor or other traction device is connected to the traction frame 5, and the motor 22 in the soil turning and stubble destroying mechanism 2 drives the soil turning roller 23 and the cutter to rotate, thereby achieving shallow soil turning and stubble destroying. The straw and soil after stubble destroying are transported to the crushing box 4 by the conveyor belt 36 in the conveying mechanism 3 for straw crushing. The two crushing rollers 7 are driven to rotate in opposite directions by the two motors 1 6, thereby crushing the straw. The crushed straw is driven by the motor 4 81 in the crushing and scattering mechanism 8 to rotate the drive shaft 85 and the two active bevel gears 89. The two active bevel gears 89 are driven to rotate in opposite directions. The wheel 89 drives the rotation of the two upper bevel gears 86 and the upper rotating shaft 87, and the upper rotating shaft 87 drives the rotation of multiple crushing knives 88, which can crush the crushed straw again, so that the straw crushing effect is better. The crushed straw will be discharged from the discharge port 41 along the guidance of the protrusion 9. At the same time, the rotation of the two active bevel gears 89 drives the rotation of the two lower bevel gears 84, and the two lower bevel gears 84 drive the rotation of the lower rotating shaft 83 and the scattering plate 82. Under the rotation of the scattering plate 82, the crushed straw can be evenly and comprehensively scattered into the field, greatly improving the effect of mixing the straw and the soil.

[0033] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A straw crushing and returning to field stubble eliminating device, characterized in that: The invention comprises a frame (1), wherein a soil turning and stubble destroying mechanism (2) and a conveying mechanism (3) are sequentially arranged at the bottom of the frame (1) from right to left, a crushing box (4) is fixedly connected to the left side of the frame (1), two motors (6) are fixedly connected to the front side of the crushing box (4), and crushing rollers (7) for crushing straw are fixedly connected to the output shafts of the two motors (6), a convex block (9) is fixedly connected inside the crushing box (4), a crushing and scattering mechanism (8) is arranged between the convex block (9) and the crushing box (4), and discharge ports (41) are provided on both sides of the bottom of the crushing box (4).

2. The straw crushing and returning to field stubble eliminating device according to claim 1, characterized in that: Two traction frames (5) are fixedly connected to the top of the frame body (1), and connection holes are provided on the front sides of the traction frames (5).

3. The straw crushing and returning to field stubble eliminating device according to claim 1 is characterized in that: The soil turning and stubble destroying mechanism (2) comprises two support plates (21) fixedly connected to the bottom of the frame (1), a soil turning roller (23) is rotatably connected between the two support plates (21), a motor (22) is fixedly connected to the front side of the front support plate (21), and the output shaft of the motor (22) is fixedly connected to the front end of the soil turning roller (23).

4. The straw crushing and returning to field stubble eliminating device according to claim 3, characterized in that: A plurality of blades are fixedly connected to the outer side of the soil turning roller (23).

5. The straw crushing and returning to field stubble eliminating device according to claim 1, characterized in that: The conveying mechanism (3) includes a third motor (35), a driving roller (34) and a driven roller (31), wherein the driving roller (34) and the driven roller (31) are connected to a same conveyor belt (36) in a transmission manner, and the output shaft of the third motor (35) is fixedly connected to the front end of the driving roller (34), and a plurality of baffles (37) are fixedly connected to the outer side of the conveyor belt (36).

6. The straw crushing and returning to field stubble eliminating device according to claim 5, characterized in that: The bottom of the frame (1) is fixedly connected to two support plates (32), the driven roller (31) is rotatably connected between the two support plates (32), the top of the crushing box (4) is fixedly connected to a support plate (33), the active roller (34) is rotatably connected between the two support plates (33), and the motor (35) is fixedly connected to the front side of the front support plate (33).

7. The straw crushing and returning to field stubble eliminating device according to claim 1, characterized in that: The crushing and scattering mechanism (8) includes a motor four (81) fixedly connected to the front side of the crushing box (4), and two upper rotating shafts (87) rotatably connected to the top of the protrusion (9). A driving shaft (85) is fixedly connected to the output shaft of the motor four (81). Two active bevel gears (89) are fixedly sleeved on the outer side of the driving shaft (85). The bottom ends of the two upper rotating shafts (87) are fixedly connected to the upper bevel gears (86). The two active bevel gears (89) are respectively engaged with the corresponding upper bevel gears (86). The outer sides of the two upper rotating shafts (87) are fixedly connected to a plurality of crushing knives (88).

8. The straw crushing and returning to field stubble eliminating device according to claim 7, characterized in that: The crushing and scattering mechanism (8) further comprises two lower rotating shafts (83) rotatably connected to the bottom of the protrusion (9), the top ends of the two lower rotating shafts (83) are fixedly connected to lower bevel gears (84), two active bevel gears (89) are respectively engaged with corresponding lower bevel gears (84), and the bottom ends of the two lower rotating shafts (83) are fixedly connected to a scattering disc (82).

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