Straw belt cleaning and returning device

Abstract

The utility model provides a kind of straw strip cleaning and returning device, comprising: main suspension bracket, the lower end of the main suspension bracket is hingedly connected with lifting frame, fixedly connected with carrying frame on the lifting frame, the rear side of the main suspension bracket is provided with the connecting pedestal fixedly connected with tractor front end;Driving part, the driving part is installed on the lifting frame with the carrying frame;Chipping part, the chipping part is installed below the carrying frame, and is transmission connection with the driving part;The straw strip cleaning and returning device is matched with returning part through chipping part, after being pulverized planting strip stubble by rotating chipping knife, returning part synchronously gathers straw and pulverized rhizome, to carry out the operation of deep burying straw into field, and then tractor is not needed in field multiple operations, avoid the problem of repeated soil compaction caused by tractor multiple times in traditional operation, protect soil aggregate structure, reserve good soil aeration and water retention for subsequent cultivation.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and more specifically, to a straw strip cleaning and arranging device. Background Technology

[0002] With the promotion of conservation tillage technology, straw return to the field has become the most critical technical link in current agricultural planting. Modern agricultural technology and planting technology cannot be separated from straw utilization. Conservation tillage technology includes straw mulching. From the national level to ordinary farmers, everyone is paying attention to the straw issue. Straw mulching is the most easily accepted method of straw return to the field by farmers.

[0003] The existing hay rakes need to be towed by tractors for the rake-back operation, and then the straw return machine needs to be towed by a tractor for the deep burial operation. The multiple operations will compact the soil and waste the equipment. If the straw strip cleaning operation is not carried out, a large amount of straw stubble in the field cannot be crushed, resulting in poor straw burial operation and thus affecting the sowing effect. Utility Model Content

[0004] The purpose of this invention is to provide a straw strip cleaning and arranging device to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model provides a straw strip cleaning and tidying device, including: a main suspension frame, a lifting frame hinged to the lower end of the main suspension frame, a bearing frame fixedly connected to the lifting frame, and a connecting base fixedly connected to the front end of a tractor on the rear side of the main suspension frame;

[0006] The drive unit is mounted on the lifting frame and the support frame;

[0007] A stubble-breaking section is installed below the support frame and is connected to the drive unit for transmission.

[0008] Two return sections are symmetrically arranged on the lifting frame;

[0009] The lifting unit is mounted on the main suspension frame and connected to the lifting frame, and is used to control the lifting frame to drive the support frame to rotate;

[0010] A connecting part is disposed on the main suspension frame and the connecting base, for completing a detachable connection between the main suspension frame and the connecting base, wherein...

[0011] Drive the drive unit to make the stubble-breaking part rotate and crush the ground stubble;

[0012] The two guide sections are used to gather straw and crushed roots in the tractor's path.

[0013] Furthermore, the stubble-breaking section includes two transmission boxes symmetrically fixed to the lower surface of the support frame, two rotating seats at the bottom of the two transmission boxes respectively, two cutter shafts rotatably connected to the two rotating seats respectively, two cutter heads fixed to the lower ends of the two cutter shafts respectively, and several stubble-breaking knives fixed in a circular array at the upper and lower ends of the two cutter heads respectively.

[0014] Furthermore, the drive unit includes a diesel engine mounted on the lifting frame, a drive box fixed in the middle of the lower surface of the support frame, a drive roller whose one end is fixedly connected to the output end of the diesel engine and whose one end is rotatably connected to the drive box, two transmission rollers whose one end is rotatably connected to the drive box and whose other end is rotatably connected to the two transmission boxes respectively, and a first bevel gear set and two second bevel gear sets respectively disposed in the drive box and the two transmission boxes;

[0015] The drive roller is connected to the two transmission rollers via a first bevel gear set;

[0016] The two drive rollers are respectively connected to the two cutter shafts via two sets of second bevel gears.

[0017] Furthermore, the return section includes two control rods hinged to one end of the lifting frame, two buffer springs with one end hinged to the lifting frame and the other end hinged to the upper end of the two control rods respectively, two connecting discs fixed to the other end of the two control rods respectively, two assembly rods rotatably mounted on the two connecting discs respectively, and two finger wheels rotatably mounted on the two assembly rods respectively.

[0018] The length of the control rod closer to the main suspension frame is greater than the length of the other control rod.

[0019] Furthermore, the lifting part includes a hydraulic cylinder hinged to the main suspension frame, a lifting seat with one end hinged to the upper end of the main suspension frame, a traction rod fixed to the lifting frame, and a connecting rod with one end hinged to the other end of the lifting seat and the other end hinged to the traction rod.

[0020] The telescopic end of the hydraulic cylinder is hinged to the lifting seat.

[0021] Furthermore, the connecting part includes a plurality of U-shaped bolts movably sleeved on the main suspension frame, an assembly groove formed on the connecting base and corresponding to the plurality of U-shaped bolts, and a plurality of locking nuts threadedly connected to both ends of the plurality of U-shaped bolts and abutting against the inner wall of the connecting base.

[0022] Furthermore, the return section also includes a plurality of positioning grooves arranged in a ring array on the two connecting discs, and a plurality of positioning bolts passing through a portion of the positioning grooves and threadedly connected to the two assembly rods respectively.

[0023] The positioning bolts on the two connecting discs are arranged in a circular array.

[0024] Compared with the prior art, the embodiments of this utility model have the following beneficial effects:

[0025] This straw strip clearing and arranging device, through the cooperation of the stubble breaking section and two arranging sections, realizes an integrated operation mode of pre-clearing and arranging combined with post-returning to the field. It integrates multiple processes such as straw arranging, stubble breaking, and returning to the field into a single operation process, avoiding the problem of repeated soil compaction caused by the tractor going to the field multiple times in traditional operations, first clearing straw, then breaking stubble, and then returning to the field. It protects the soil aggregate structure, preserves good soil aeration and water retention for subsequent cultivation, and significantly shortens the operation cycle, reduces the number of tractor trips, and reduces agricultural machinery operating costs and fuel consumption.

[0026] This straw strip cleaning and arranging device actively crushes hard stubble with its stubble-breaking section, solving problems such as difficulty in soil entry and uneven mixing of straw and soil caused by stubble residue in traditional straw returning machines. It allows straw and roots to come into fuller contact with the soil, accelerating the decomposition process, improving the quality of straw returning to the field, and enabling straw and roots to be buried more evenly and deeply in the soil. This provides favorable conditions for microbial decomposition, continuously releasing nutrients, improving soil organic matter content and fertility levels in the long term, and contributing to sustainable agricultural development. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Figure 1 A perspective view of the present invention is shown;

[0029] Figure 2 A partially disassembled perspective view of this utility model is shown;

[0030] Figure 3 A partial bottom-view perspective view of this utility model is shown;

[0031] Figure 4 A partial cross-sectional perspective view of this utility model is shown;

[0032] Figure 5 A partial side view of the present invention is shown;

[0033] Figure 6 A partial perspective view of the present invention is shown.

[0034] In the picture

[0035] 1. Main suspension frame; 2. Lifting frame; 3. Bearing frame; 4. Connecting base; 5. Drive unit; 6. Stubble breaking unit; 7. Returning unit; 8. Lifting unit; 9. Connecting unit; 10. Transmission box; 11. Rotating seat; 12. Cutter shaft; 13. Cutter head; 14. Stubble shaving knife; 15. Diesel engine; 16. Drive box; 17. Drive roller; 18. Transmission roller; 19. First bevel gear set; 20. Second bevel gear set; 21. Control lever; 22. Buffer spring; 23. Connecting plate; 24. Assembly rod; 25. Finger wheel; 26. Hydraulic cylinder; 27. Lifting seat; 28. Traction rod; 29. ​​Connecting rod; 30. U-bolt; 31. Assembly groove; 32. Locking nut; 33. Positioning groove; 34. Positioning bolt. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0037] like Figure 1-6 As shown, a straw strip cleaning and tidying device includes: a main suspension frame 1, a lifting frame 2 hinged to the lower end of the main suspension frame 1, a bearing frame 3 fixedly connected to the lifting frame 2, and a connecting base 4 fixedly connected to the front end of the tractor on the rear side of the main suspension frame 1.

[0038] Drive unit 5, which is mounted on the lifting frame 2 and the support frame 3;

[0039] The stubble breaking section 6 is installed below the support frame 3 and is connected to the drive section 5 in a transmission manner;

[0040] Returning section 7, two returning sections 7 are symmetrically arranged on the lifting frame 2;

[0041] Lifting part 8, which is installed on the main suspension frame 1 and connected to the lifting frame 2, is used to control the lifting frame 2 to drive the support frame 3 to rotate;

[0042] Connecting part 9, the connecting part 9 is disposed on the main suspension frame 1 and the connecting base 4, and is used to complete the detachable connection between the main suspension frame 1 and the connecting base 4, wherein

[0043] Drive the drive unit 5 to make the stubble-breaking unit 6 rotate and crush the root stubble on the ground;

[0044] The two guide sections 7 are used to gather straw and crushed roots and stems in the tractor's travel path;

[0045] In use, the main suspension frame 1 is securely and stably assembled onto the connecting base 4 via the connecting part 9, thus assembling the device at the front of the tractor. As the tractor moves in the field, the stubble-breaking section 6 operates, with the diesel engine 15 in the drive unit 5 providing power. This power is input to the drive box 16 via the drive roller 17, and the first bevel gear set 19 distributes the power to the two transmission rollers 18. With the cooperation of the two second bevel gear sets 20, the cutter shafts 12 on both sides of the stubble-breaking section 6 are driven to rotate. The cutter shafts 12 drive several stubble-crushing blades 14 to rotate at high speed, penetrating deep into the soil to crush the stubble. At the same time, several finger wheels 25 in the two collecting sections 7 move forward and gather the straw. The straw deep-burying and returning machine at the rear of the tractor, positioned at the middle of the tractor's wheel track, deeply buries the processed straw back into the field, completing a comprehensive operation. During the rotation of the index wheel 25, the ground pressure of the index wheel 25 is kept constant with the assistance of the buffer spring 22, flexibly coping with complex environments such as stones and undulating terrain in the field, reducing deformation of the spring teeth and damage to the implements, while ensuring the uniformity of straw collection, improving the adaptability of the device to different plots, reducing the failure rate of operation, and realizing the completion of rowing, stubble breaking and deep burying in the field in one operation, reducing soil compaction, improving operation efficiency and the effect of returning straw to the field, and promoting the participation of straw in soil fertility cultivation.

[0046] Optionally, the stubble-breaking section 6 includes two transmission boxes 10 symmetrically fixed to the lower surface of the support frame 3, two rotating seats 11 at the bottom of the two transmission boxes 10 respectively, two cutter shafts 12 rotatably connected to the two rotating seats 11 respectively, two cutter heads 13 fixed to the lower ends of the two cutter shafts 12 respectively, and a plurality of stubble-breaking blades 14 fixed in a circular array at the upper and lower ends of the two cutter heads 13 respectively.

[0047] In use, the drive unit 5 transmits power to the two cutter shafts 12 through the transmission box 10, causing them to rotate at high speed. Several stubble-crushing blades 14 rotate with the two cutter heads 13, crushing straw and stubble in the soil. This solves the problems of difficulty in soil entry and uneven mixing of straw and soil caused by stubble residue in traditional returning machines. It allows straw to come into more full contact with the soil, accelerates the decomposition process, and improves the quality of returning to the field. The stubble-crushing blades 14 on the cutter heads 13 are arranged in a double row in a three-dimensional manner. When the bidirectional blades rotate, they form an airflow, reducing straw accumulation. The stubble is also distributed in a ring array, achieving full coverage cutting, avoiding missed stubble, reducing the force on a single blade, and lowering the risk of breakage.

[0048] Optionally, the drive unit 5 includes a diesel engine 15 mounted on the lifting frame 2, a drive box 16 fixed in the middle of the lower surface of the support frame 3, a drive roller 17 whose one end is fixedly connected to the output end of the diesel engine 15 and whose one end is rotatably connected to the drive box 16, two transmission rollers 18 whose one end is rotatably connected to the drive box 16 and whose other end is rotatably connected to the two transmission boxes 10 respectively, and a first bevel gear set 19 and two second bevel gear sets 20 respectively disposed in the drive box 16 and the two transmission boxes 10;

[0049] The drive roller 17 is connected to the two transmission rollers 18 via a first bevel gear set 19.

[0050] The two drive rollers 18 are respectively connected to the two cutter shafts 12 via two second bevel gear sets 20;

[0051] In use, the diesel engine 15 serves as the power source, outputting power to drive the roller 17 to rotate. The drive roller 17, through the first bevel gear set 19, distributes power within the drive box 16, transmitting torque to the two transmission rollers 18. The two transmission rollers 18 respectively transmit power to the transmission boxes 10 on the left and right sides. With the cooperation of the two second bevel gear sets 20, the horizontal rotational motion is converted into vertical rotation, driving the two cutter shafts 12 to drive several stubble-breaking blades 14 to rotate at high speed. Since the two second bevel gear sets 20 are kept in sync, the rotational speed of the two cutter shafts 12 is kept in sync, thus ensuring the uniformity of the stubble-breaking operation. The drive box 16 is centrally located to balance the left and right torques, thereby reducing the risk of uneven load on the support frame 3 and ensuring the stability of the stubble-breaking operation.

[0052] Optionally, the return section 7 includes two control rods 21 hinged to one end of the lifting frame 2, two buffer springs 22 with one end hinged to the lifting frame 2 and the other end hinged to the upper end of the two control rods 21 respectively, two connecting plates 23 fixed to the other end of the two control rods 21 respectively, two mounting rods 24 rotatably mounted on the two connecting plates 23 respectively, and two finger wheels 25 rotatably mounted on the two mounting rods 24 respectively;

[0053] The length of the control lever 21 closer to the main suspension frame 1 is greater than the length of the other control lever 21;

[0054] Because one end of the control lever 21 is hinged to the lifting frame 2 and the other end is elastically connected through the buffer spring 22, the finger wheel 25 can adaptively adjust its angle according to the undulation of the ground. When encountering hard obstacles, such as clods of soil or residual straw, or uneven terrain, the buffer spring 22 will be compressed to avoid rigid collisions that could damage the mechanism and ensure operational stability. During operation, the tractor works, and several finger wheels 25 in the two return sections 7 are in contact with the ground and rotate. Their tilted installation angle allows the straw to be pushed from the outside in and gathered into strips, facilitating the deep burial and returning of the straw to the field by the straw deep burial machine behind the tractor. Furthermore, the rotating contact of several finger wheels 25 with the ground reduces tearing of the straw, maintains the integrity of the straw, and is beneficial for subsequent covering and moisture retention. Because the control lever 21 on the side closer to the main suspension frame 1 is longer and the other side is shorter, the two finger wheels 25 form different convergence angles, enhancing the lateral pushing effect of the straw and ensuring the straw gathering efficiency.

[0055] Optionally, the lifting part 8 includes a hydraulic cylinder 26 hinged to the main suspension frame 1, a lifting seat 27 with one end hinged to the upper end of the main suspension frame 1, a traction rod 28 fixed to the lifting frame 2, and a connecting rod 29 with one end hinged to the other end of the lifting seat 27 and the other end hinged to the traction rod 28.

[0056] The telescopic end of the hydraulic cylinder 26 is hinged to the lifting seat 27;

[0057] In operation, the hydraulic cylinder 26 operates, pushing the lifting seat 27 to rotate around the hinge point of the main suspension frame 1. The lifting seat 27 then pulls the traction rod 28 via the connecting rod 29, causing the lifting frame 2 to rotate around its hinge point with the main suspension frame 1. This causes the support frame 3 connected to the lifting frame 2 to move synchronously, achieving the lifting and lowering of the stubble-breaking section 6 and the stalk-gathering section 7. The hydraulic drive provides strong power, ensuring rapid lifting and lowering of the heavy-duty stubble-breaking section 6. During operation, several stubble-breaking blades in the stubble-breaking section 6 move down into the soil to crush the stubble, and several rollers 25 move down to contact the ground, thus gathering the straw. During transport, several stubble-breaking blades and rollers 25 move up and suspend in the air, preventing collisions and damage to field ridges during road transfers and facilitating tractor travel on roads. The tractor driver can control the operation and transport status with a single button press via the hydraulic valve, eliminating the need to manually adjust the system, thus improving efficiency.

[0058] Optionally, the connecting part 9 includes a plurality of U-bolts 30 movably sleeved on the main suspension frame 1, an assembly groove 31 opened on the connecting base 4 and corresponding to the plurality of U-bolts 30, and a plurality of locking nuts 32 threadedly connected to both ends of the plurality of U-bolts 30 and abutting against the inner wall of the connecting base 4.

[0059] During the assembly of the device, the main suspension frame 1 is placed in the assembly area of ​​the connecting base 4, and the open end of the U-bolt 30 is aligned with several assembly slots 31. The two ends of the U-bolt 30 pass through several assembly slots 31 respectively. At this time, several locking nuts 32 are pre-tightened to initially fix the main suspension frame 1. Then, several locking nuts 32 on both sides are symmetrically tightened with tools to generate bidirectional clamping force on the U-bolt 30, ensuring that there is no relative displacement between the main suspension frame 1 and the connecting base 4. The open design of the U-bolt 30 allows it to be directly fitted onto the outside of the column suspension frame without the need for precise alignment of the holes, which greatly shortens the connection time and facilitates quick tool replacement. In addition, the arc structure of the U-bolt 30 has a large contact area with the main suspension frame 1, resulting in uniform force distribution and effectively avoiding local stress concentration, thereby extending the service life.

[0060] Optionally, the return section 7 further includes a plurality of positioning grooves 33 arranged in a ring array on the two connecting discs 23, and a plurality of positioning bolts 34 passing through a portion of the positioning grooves 33 and threadedly connected to the two assembly rods 24 respectively.

[0061] The positioning bolts 34 on the two connecting discs 23 are arranged in a circular array;

[0062] The connecting plate 23 is provided with a ring array of positioning grooves 33. The assembly rod 24 is fixed in the groove at a specific angle by positioning bolts 34. After loosening several positioning bolts 34, the assembly rod 24 can be rotated to change the installation tilt angle of the finger wheel 25. After adjustment, the positioning bolts 34 are tightened again, thereby adjusting the width of the straw strip after folding, adapting to different operational needs, and is highly practical.

[0063] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for cleaning and homing of straw in the form of a band, characterized in that include: The main suspension frame (1) is hinged to the lower end of the main suspension frame (1) and a lifting frame (2) is fixedly connected to the lifting frame (2). A bearing frame (3) is fixedly connected to the lifting frame (2). A connecting base (4) is provided on the rear side of the main suspension frame (1) and fixedly connected to the front end of the tractor. A drive unit (5) is mounted on the lifting frame (2) and the support frame (3); The stubble breaking section (6) is installed below the support frame (3) and is connected to the drive section (5) in a transmission manner; A connecting part (9) is disposed on the main suspension frame (1) and the connecting base (4) to complete the detachable connection between the main suspension frame (1) and the connecting base (4). Drive the drive unit (5) to make the stubble breaking unit (6) rotate and crush the ground stubble.

2. The straw strip clearing and arranging device as described in claim 1, characterized in that, The stubble-breaking section (6) includes two transmission boxes (10) symmetrically fixed on the lower surface of the support frame (3), two rotating seats (11) at the bottom of the two transmission boxes (10) respectively, two cutter shafts (12) rotatably connected in the two rotating seats (11) respectively, two cutter heads (13) fixed at the lower ends of the two cutter shafts (12) respectively, and several stubble-breaking knives (14) fixed in a ring array at the upper and lower ends of the two cutter heads (13).

3. The straw strip clearing and arranging device as described in claim 2, characterized in that, The drive unit (5) includes a diesel engine (15) mounted on the lifting frame (2), a drive box (16) fixed in the middle of the lower surface of the support frame (3), a drive roller (17) with one end fixedly connected to the output end of the diesel engine (15) and one end rotatably connected to the drive box (16), two transmission rollers (18) with one end rotatably connected to the drive box (16) and the other end rotatably connected to the two transmission boxes (10) respectively, and a first bevel gear set (19) and two second bevel gear sets (20) respectively arranged in the drive box (16) and the two transmission boxes (10). The drive roller (17) is connected to the two transmission rollers (18) via a first bevel gear set (19); The two drive rollers (18) are respectively connected to the two cutter shafts (12) via two second bevel gear sets (20).

4. The straw strip clearing and arranging device as described in claim 1, characterized in that, The connecting part (9) includes a plurality of U-bolts (30) movably sleeved on the main suspension frame (1), an assembly groove (31) opened on the connecting base (4) and corresponding to the plurality of U-bolts (30), a plurality of locking nuts (32) threadedly connected to both ends of the plurality of U-bolts (30) and abutting against the inner wall of the connecting base (4).

5. A straw belt cleaning and homing device as claimed in claim 4, characterized in that It also includes a return section (7), with two return sections (7) symmetrically arranged on the lifting frame (2); The two folding sections (7) are used to gather straw and crushed roots in the tractor's travel path; The return section (7) includes two control rods (21) hinged to one end of the lifting frame (2), two buffer springs (22) with one end hinged to the lifting frame (2) and the other end hinged to the upper end of the two control rods (21), two connecting discs (23) fixed to the other end of the two control rods (21), two mounting rods (24) rotatably mounted on the two connecting discs (23), and two finger wheels (25) rotatably mounted on the two mounting rods (24). The length of the control lever (21) on the side closer to the main suspension frame (1) is greater than the length of the other control lever (21).

6. The straw strip clearing and arranging device as described in claim 5, characterized in that, It also includes a lifting part (8), which is installed on the main suspension frame (1) and connected to the lifting frame (2) to control the lifting frame (2) to drive the support frame (3) to rotate; The lifting part (8) includes a hydraulic cylinder (26) hinged on the main suspension frame (1), a lifting seat (27) with one end hinged to the upper end of the main suspension frame (1), a traction rod (28) fixed on the lifting frame (2), and a connecting rod (29) with one end hinged to the other end of the lifting seat (27) and the other end hinged to the traction rod (28). The telescopic end of the hydraulic cylinder (26) is hinged to the lifting seat (27).

7. The straw strip clearing and arranging device as described in claim 6, characterized in that, The return section (7) also includes a plurality of positioning grooves (33) arranged in a ring array on the two connecting discs (23), and a plurality of positioning bolts (34) passing through a portion of the positioning grooves (33) and threadedly connected to the two assembly rods (24) respectively. The positioning bolts (34) on the two connecting discs (23) are arranged in a ring array.

Images