Bundling mechanism for harvester

Abstract

The invention belongs to the technical field of harvesters, and relates to a bundling mechanism for a harvester. The harvester comprises a walking unit, a harvesting unit, a conveying unit and a bundling unit. A rack is mounted on the walking unit; the harvesting unit, the conveying unit and the bundling unit are sequentially installed on the rack, and the conveying unit conveys materials harvested by the harvesting unit into the bundling unit; the bundling unit comprises a bundling box, a bundling assembly installed in the bundling box, a net winding assembly for winding a gauze net on a round bundle and a closing-in assembly. The gauze element extends out of the two ends of the round bundle; the closing-up assembly closes up the gauze element at the end of the round bundle. After the gauze element is wound on the round bundle, the gauze element at the end of the round bundle is closed up through the closing-up assembly, then the gauze element at the end of the round bundle is twisted, the outer circumference and the end of the round bundle are comprehensively wrapped by the gauze element, meanwhile, the gauze element is tightly attached to the round bundle, the fixing effect on the round bundle is improved, and the round bundle is prevented from loosening in the transferring process.

Description

Technical Field

[0001] This invention belongs to the field of harvester technology and relates to a baling mechanism for harvesters. Background Technology

[0002] Harvesters equipped with baling mechanisms can achieve efficient coordination between harvesting and baling, which helps to improve harvesting efficiency. The harvested material can be baled and output immediately, facilitating subsequent transportation and processing, reducing operation steps and time, and improving the utilization rate of the harvester.

[0003] Patent document CN115777329A discloses a shrub cutting and bundling device and its usage method. The device includes a shrub cutting device connected to a bundling device, and two binding devices connected to the bundling device. A fork at the front of the device scoops up stones from the shrubs to prevent damage to the cutting wheel, while also increasing the cutting range and adjusting the cutting height. It automatically presses the shrub strips into the device and compacts them into a bundle. In this device, a net roll binds the outer circumference of the bundled shrub roll, and then a second net roll binds the sides of the shrub roll. However, in actual use, this device has the following shortcomings: during transportation, the second net rolls on both sides of the shrub roll are prone to detaching, causing the shrub roll to easily leak out from both ends.

[0004] To address the above problems, this invention proposes a baling mechanism for harvesters. Summary of the Invention

[0005] To address the problems existing in the background art, the present invention proposes a baling mechanism for a harvester.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a baling mechanism for a harvester, comprising a traveling unit, a harvesting unit, a conveying unit, and a baling unit; a frame is mounted on the traveling unit; the harvesting unit, conveying unit, and baling unit are sequentially mounted on the frame, and the conveying unit conveys the material harvested by the harvesting unit into the baling unit; the baling unit includes a baling box and a baling assembly installed inside the baling box for rolling the harvested material into round bundles, a wrapping assembly for wrapping a mesh onto the round bundles, and a closing assembly; the mesh extends outside both ends of the round bundle; the closing assembly closes the mesh at the ends of the round bundle. The closing assembly includes an outer ring, an inner ring, and a push plate. The inner ring is rotatably mounted on the bundling box. The outer ring and the inner ring are rotatably connected. The outer ring has a regular polygonal sliding groove. A square rod is provided in each side of the sliding groove. The square rod is connected to the push plate. The push plate is connected to a round rod. The round rod is slidably disposed in a second sliding hole on the inner ring. Both the outer ring and the inner ring have through holes.

[0007] Furthermore, the bundling assembly includes a rotating tray and an extrusion belt; a base is fixedly installed on the bottom wall of the bundling box, and the rotating tray is rotatably installed on the base; the upper end of the rotating tray is arc-shaped, and multiple drive rollers are rotatably installed on the upper end of the rotating tray; a rotating rod is rotatably installed inside the bundling box; two side plates are symmetrically fixedly installed on the rotating rod; a drive shaft and multiple limiting shafts are rotatably installed between the two side plates; the extrusion belt is wound between the drive shaft and the multiple limiting shafts; the extrusion belt and the drive rollers are configured to roll the material on the rotating tray into a round bundle.

[0008] Furthermore, a pressure roller for tensioning the extrusion belt is provided between the two side plates; each side plate is provided with a first sliding hole, and the pressure roller is slidably disposed between the two first sliding holes.

[0009] Furthermore, a swing rod is elastically mounted on the side plate via a rotating rod, and the end of the pressing roller is connected to the swing rod; the first sliding hole is arc-shaped, and the rotating rod is coaxially arranged with the first sliding hole.

[0010] Furthermore, the web winding assembly includes a web roller and a cutter, with the web wound around the web roller; the cutter is configured to cooperate with the web and is used to cut the web.

[0011] Furthermore, the inner ring is fixedly connected to a support plate, a fourth hydraulic rod is mounted on the support plate, and a strapping clamp is mounted on the output end of the fourth hydraulic rod.

[0012] Furthermore, the inner ring is provided with an arc-shaped groove, and a sliding block is slidably disposed in the arc-shaped groove. A spring is connected between the sliding block and the end of the arc-shaped groove. A second hydraulic rod is installed on the bundling box. The output end of the second hydraulic rod is connected to the sliding block. The second hydraulic rod drives the inner ring to move closer to or away from the round bundle through the sliding block.

[0013] Furthermore, the bundling box is provided with a third sliding hole, a pull rod is slidably disposed in the third sliding hole, the pull rod is connected to an extension plate, and the extension plate is connected to an outer ring; The bundling box is equipped with a third hydraulic rod, the output end of which is connected to a limit ring, and the pull rod moves through the limit ring.

[0014] Furthermore, the bundling box is provided with an air outlet, which is coaxially arranged with the through hole, and an exhaust fan is installed inside the air outlet.

[0015] Furthermore, a first hydraulic rod is provided between the base and the rotating support, with one end of the first hydraulic rod hinged to the base and the other end of the first hydraulic rod hinged to the rotating support.

[0016] Compared with the prior art, the present invention has the following beneficial effects: after the mesh is wrapped around the round bundle, the mesh at the end of the round bundle is closed by the closing component, and then the mesh at the end of the round bundle is twisted so that the mesh fully covers the outer circumference and end of the round bundle, while making the mesh stick tightly to the round bundle, improving the fixing effect of the round bundle and preventing the round bundle from loosening during transportation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the external structure of the bundling box in this invention; Figure 3 This is a schematic diagram of the internal structure of the bundling box in this invention; Figure 4 In this invention Figure 3 Enlarged view of part A; Figure 5 This is a schematic diagram of the bundled components in this invention; Figure 6 In this invention Figure 5 Enlarged view of part B; Figure 7 This is a schematic diagram of the outer ring structure in this invention; Figure 8 This is a schematic diagram of the push plate structure in this invention; Figure 9 This is a schematic diagram of the side panel after it has been flipped upwards in this invention.

[0018] In the diagram: 1. Walking unit; 2. Conveying unit; 3. Harvesting unit; 4. Cabin; 5. Cargo box; 6. Baling box; 7. Conveyor belt; 8. Base; 9. Rotating support; 10. Drive roller; 11. First hydraulic rod; 12. First motor; 13. Rotating rod; 14. Side plate; 15. Extrusion belt; 16. Pressure roller; 17. First sliding hole; 18. Swing rod; 19. Drive shaft; 20. Mesh roller; 21. Mesh; 22. Cutter; 23. Second hydraulic rod 24. Arc groove; 25. Spring; 26. Inner ring; 27. Second sliding hole; 28. Round rod; 29. ​​Push plate; 30. Square rod; 31. Outer ring; 32. Sliding groove; 33. Through hole; 34. Extension plate; 35. Pull rod; 36. Third sliding hole; 37. Limiting ring; 38. Third hydraulic rod; 39. Support plate; 40. Fourth hydraulic rod; 41. Bundling clamp; 42. Air outlet; 43. Exhaust fan; 44. Round bundle; 45. Limiting shaft; 46. Sliding block. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1-9 The image shows a baling mechanism for a harvester.

[0021] Example 1: As Figures 1-9 As shown, the technical solution adopted by the present invention is as follows: A baling mechanism for a harvester includes a traveling unit 1, a conveying unit 2, a harvesting unit 3, and a baling unit. A frame is mounted on the traveling unit 1. The harvesting unit 3, the conveying unit 2, and the baling unit are sequentially mounted on the frame. The harvesting unit 3 is mounted on the front side of the traveling unit 1, and the baling unit is mounted on the rear side of the traveling unit 1. The traveling unit 1 drives the frame to travel, the harvesting unit 3 harvests the material, and the conveying unit 2 transports the material harvested by the harvesting unit 3 to the baling unit for baling, forming round bundles 44.

[0022] The frame is also equipped with a driver's cab 4 and a carriage 5. The operator sits in the driver's cab 4 and starts the traveling unit 1 and the harvesting unit 3, causing the traveling unit 1 to move forward and the harvesting unit 3 to harvest the material. The conveying unit 2 and the harvesting unit 3 are existing technologies and will not be described in detail here.

[0023] The baling unit includes a baling box 6 and a baling assembly, a wrapping assembly, and a sealing assembly mounted on the baling box 6. The baling box 6 is mounted on the rear side of the frame. The baling assembly forms the material entering the baling box 6 into round bundles 44, the wrapping assembly wraps the netting 21 around the round bundles 44, and the sealing assembly seals the netting 21 at both ends of the round bundles 44.

[0024] A conveyor belt 7 is installed inside the baling box 6. A feed inlet is located at the lower end of the baling box 6 near the conveying unit 2, through which material from the conveying unit 2 enters the conveyor belt 7. Two conveyor rollers are rotatably mounted inside the baling box 6, one near the feed inlet and the other near the baling assembly, with the conveyor belt 7 wound between the two rollers. A first drive motor is installed on the baling box 6, and the first drive motor is connected to one of the conveyor rollers.

[0025] The bundling assembly includes a rotating support 9 and a compression belt 15. A base 8 is fixedly installed on the bottom wall of the bundling box 6, and the rotating support 9 is rotatably mounted on the base 8. A first hydraulic rod 11 is provided between the base 8 and the rotating support 9. One end of the first hydraulic rod 11 is hinged to the base 8, and the other end of the first hydraulic rod 11 is hinged to the rotating support 9. The extension and retraction of the first hydraulic rod 11 causes the rotating support 9 to rotate.

[0026] The upper end of the rotating tray 9 is arc-shaped, and multiple drive rollers 10 are rotatably mounted on the upper end of the rotating tray 9. A second drive motor is mounted on the rotating tray 9 to drive the drive rollers 10 to rotate. The upper end of the rotating tray 9 is configured to cooperate with the conveyor belt 7. The conveyor belt 7 transports the material to the upper end of the rotating tray 9, and the rotation of the drive rollers 10 drives the material on the rotating tray 9 to move.

[0027] like Figure 5 , Figure 6 As shown, a rotating rod 13 is rotatably mounted inside the bundling box 6, and a first motor 12 connected to the rotating rod 13 is mounted on the bundling box 6. Two side plates 14 are symmetrically fixedly mounted on the rotating rod 13. A drive shaft 19 and multiple limiting shafts 45 are rotatably mounted between the two side plates 14. A second motor that drives the drive shaft 19 is fixedly mounted on one of the side plates 14. An extrusion belt 15 is wound between the drive shaft 19 and the multiple limiting shafts 45. The extrusion belt 15 and the drive roller 10 work together to roll the material on the rotating support 9 into a round bundle 44.

[0028] Each side plate 14 has a first sliding hole 17, with two first sliding holes 17 symmetrically arranged. A pressure roller 16 is slidably disposed between the two first sliding holes 17. A swing rod 18 is rotatably mounted on the side plate 14. One end of the swing rod 18 is rotatably mounted on the side plate 14 via a rotating rod, and the other end of the swing rod 18 is connected to the end of the pressure roller 16. A torsion spring is sleeved on the rotating rod, and the torsion spring is fixedly connected between the swing rod 18 and the side plate 14. The first sliding hole 17 is arc-shaped, and the axis of the first sliding hole 17 is on the same axis as the axis of the rotating rod.

[0029] The pressure roller 16 is used to press the extrusion belt 15, so that the extrusion belt 15 is in a taut state. As the outer diameter of the circular bundle 44 between the rotating support 9 and the extrusion belt 15 gradually increases, the pressure roller 16 moves upward along the first sliding hole 17, and the swing rod 18 rotates against the elastic force of the torsion spring.

[0030] The web wrapping assembly includes a web roller 20 and a cutter 22 rotatably mounted inside the baling box 6. The web 21 is wound around the web roller 20. A web feeding assembly is installed inside the baling box 6, which delivers the web 21 between the round bundle 44 and the conveyor belt 7. A drive roller 10 rotates the round bundle 44, causing the web 21 to wrap around it. The web feeding assembly is conventional prior art and is not described in detail here, nor is it shown in the figures.

[0031] Two cutters 22 are installed inside the bundling box 6, with the two cutters 22 located on both sides of the mesh 21. The bundling box 6 is equipped with a drive unit connected to the drive cutters 22, which drives the cutters 22 to move closer together and cut the mesh 21.

[0032] The width of the mesh 21 is greater than the distance between the two side plates 14. That is to say, after the mesh 21 is wrapped around the round bundle 44, the mesh 21 at the end of the round bundle 44 extends a certain distance outside the round bundle 44.

[0033] The bundling box 6 is equipped with a sealing assembly. There are two sealing assemblies, which are symmetrically arranged inside the bundling box 6 and located at both ends of the round bundle 44.

[0034] The closing assembly includes an inner ring 26, an outer ring 31, and a push plate 29.

[0035] like Figure 3 , Figure 4 As shown, the inner ring 26 has multiple arc-shaped grooves 24, which are evenly distributed circumferentially along the axis of the inner ring 26. The arc-shaped grooves 24 and the inner ring 26 are coaxially arranged. A sliding block 46 is slidably installed within each arc-shaped groove 24. A spring 25 is installed within the arc-shaped groove 24 and is fixedly connected between the end wall of the arc-shaped groove 24 and the sliding block 46. A second hydraulic rod 23 is installed on the bundling box 6, and the output end of the second hydraulic rod 23 is fixedly connected to the sliding block 46. The second hydraulic rod 23 drives the inner ring 26 to move closer to or away from the round bundle 44 via the sliding block 46.

[0036] The outer ring 31 and the inner ring 26 are coaxially rotatably connected. Both the outer ring 31 and the inner ring 26 have through holes 33, which are coaxially aligned with the outer ring 31. An extension plate 34 is fixedly connected to the outer ring 31, and a pull rod 35 is fixedly connected to the extension plate 34. A third sliding hole 36 is provided on the bundling box 6, and the axis of the third sliding hole 36 is on the same straight line as the axis of the outer ring 31. The pull rod 35 is slidably disposed within the third sliding hole 36. One end of the pull rod 35 passes through the third sliding hole 36 and extends to the outside of the bundling box 6. A third hydraulic rod 38 is fixedly installed on the outer surface of the bundling box 6, and a limit ring 37 is fixedly connected to the output end of the third hydraulic rod 38. The pull rod 35 moves through the limit ring 37.

[0037] A groove 32 is provided on the outer ring 31, and the groove 32 is a regular polygon. In this embodiment, the groove 32 is a regular hexagon. A through hole 33 is located inside the groove 32, and the groove 32 and the through hole 33 are concentrically arranged. A square rod 30 is slidably arranged in each side of the groove 32, and each square rod 30 is fixedly connected to a push plate 29.

[0038] The inner ring 26 has multiple second sliding holes 27, which are circumferentially distributed along the axis of the inner ring 26. Each second sliding hole 27 corresponds to one of multiple push plates 29. In this embodiment, there are six second sliding holes 27. A round rod 28 is connected to each push plate 29, and the round rod 28 is slidably disposed within the corresponding second sliding hole 27.

[0039] The inner ring 26, outer ring 31, and push plate 29 constitute an iris structure. The square rod 30 slides within the groove 32, causing the through hole 33 to close or open. When the through hole 33 is open, the inner ring 26 and outer ring 31 move closer to the round bundle 44, and the mesh 21 at the end of the round bundle 44 extends into the through hole 33. Then, the push plate 29 gradually moves closer to the axis of the through hole 33, thereby closing the through hole 33 and sealing the mesh 21.

[0040] A support plate 39 is fixedly connected to the lower part of the inner ring 26. A fourth hydraulic rod 40 is fixedly installed on the support plate 39. A binding clamp 41 is fixedly connected to the output end of the fourth hydraulic rod 40. The binding clamp 41 binds the mesh 21 at the end of the round bundle 44.

[0041] Working principle: Initially, the extrusion belt 15 is in a position that engages with the rotating support 9. The through hole 33 is blocked and closed by the push plate 29.

[0042] In operation, a person can sit in the driver's cab 4 to operate the system. The walking unit 1 is activated to move forward, while the harvesting unit 3 harvests the material. The harvested material is then conveyed through the conveyor unit 2 to the baling box 6. The material enters the conveyor belt 7 through the feed inlet on the baling box 6, which transports the material to the upper end of the rotating tray 9. Simultaneously, the drive roller 10 rotates, causing the drive shaft 19 to rotate, and the extrusion belt 15 to move. Under the action of the drive roller 10 and the extrusion belt 15, the material on the rotating tray 9 is rolled into a round bundle 44.

[0043] As the conveyor belt 7 transports the material to the upper end of the rotating tray 9, the pressing roller 16, under the action of the swing rod 18, keeps pressing down on the extrusion belt 15, thereby keeping the extrusion belt 15 pressing on the round bundle 44, so that the round bundle 44 is gradually compressed and compacted.

[0044] In this embodiment, a limit switch is installed on the inner wall of the first sliding hole 17. The limit switch, the drive source of the conveyor belt, and the first motor 12 are all electrically connected to the controller. As material is continuously input, the outer diameter of the round bundle 44 gradually increases, and the pressure roller 16 slides upward along the first sliding hole 17, gradually approaching the limit switch. When the pressure roller 16 presses against the limit switch, the outer diameter of the round bundle 44 reaches a certain value. The limit switch transmits a signal to the controller, which controls the drive source of the conveyor belt 7 to stop the conveyor belt 7 and simultaneously starts the first motor 12. The first motor 12 drives the rotating rod 13 to rotate, and the rotating rod 13 drives the side plate 14 to rotate, thereby causing the extrusion belt 15 to rotate upward and disengage from the round bundle 44.

[0045] In other embodiments, an angle sensor can be installed on the rotating rod. The angle sensor, the drive source of the conveyor belt, and the first motor 12 are all electrically connected to the controller. As the outer diameter of the round bundle 44 gradually increases, the pressure roller 16 moves upward along the first sliding hole 17, and the measured value of the angle sensor gradually increases. The angle sensor transmits the measured value to the controller. When the measured value of the angle sensor reaches a certain value, the controller stops the conveyor belt 7 and starts the first motor 12.

[0046] The feeding assembly is activated, causing the yarn 21 to move closer to the circular bundle 44 and the rotating support 9. Simultaneously, the drive roller 10 slowly rotates the circular bundle 44, causing the yarn 21 to wrap around its outer circumference. After a certain number of turns of yarn 21 have wrapped around the outer circumference of the circular bundle 44, the drive mechanism is activated, causing the cutter 22 to cut the yarn 21. The circular bundle 44 continues to rotate, ensuring the yarn 21 adheres completely to it.

[0047] Since the width of the mesh 21 is greater than the width of the round bundle 44, i.e. the distance between the two ends of the round bundle 44, the mesh 21 extends outside the ends of the round bundle 44.

[0048] Activating the third hydraulic rod 38 extends it, causing the pull rod 35 to slide along the third sliding hole 36. The pull rod 35 drives the extension plate 34 to move, which in turn causes the outer ring 31 to rotate relative to the inner ring 26. The outer ring 31 then drives the push plate 29 to move, thereby opening the through hole 33. Next, the second hydraulic rod 23 extends, causing the inner ring 26 and outer ring 31 to move closer to the round bundle 44 until the outer ring 31 is flush with the end of the round bundle 44. At this point, the mesh 21 passes through the through hole 33.

[0049] Then, the third hydraulic rod 38 is activated, causing it to retract. The pull rod 35 slides along the third sliding hole 36. The pull rod 35 drives the outer ring 31 to rotate through the extension plate 34. The outer ring 31 drives the push plate 29 to move, thereby gradually closing the through hole 33. Multiple push plates 29 drive the mesh 21 to gather towards the center, thereby closing the mesh 21 at the end of the round bundle 44.

[0050] During the rotation of the outer ring 31 relative to the inner ring 26, the round rod 28 slides along the second sliding hole 27. When the push plate 29 can no longer move, the third hydraulic rod 38 continues to contract. The outer ring 31 drives the inner ring 26 to rotate through the push plate 29 and the round rod 28. The sliding block 46 slides along the arc groove 24, thereby gradually compressing the spring 25. Since multiple push plates 29 clamp the mesh 21 at the end of the round bundle 44, the rotation of the push plates 29 drives the mesh 21 at the end of the round bundle 44 to rotate, and the mesh 21 at the end of the round bundle 44 gradually twists. Moreover, the direction of the twist of the mesh 21 is the same as the direction of the mesh 21 winding on the round bundle 44, thereby making the mesh 21 gradually tighten, so that the mesh 21 fits more tightly on the round bundle 44, which helps to improve the fixing effect of the round bundle 44 and prevent the round bundle 44 from loosening during transportation.

[0051] Then, the fourth hydraulic rod 40 is activated, which pushes the binding clamp 41 upwards and closer to the mesh 21. The binding clamp 41 then binds and secures the twisted mesh 21. After the binding clamp 41 has finished binding the mesh 21, the fourth hydraulic rod 40 is lowered to reset the binding clamp 41.

[0052] The outer circumference and ends of the round bundle 44 are covered with mesh 21 to prevent the material from falling off from both ends during transportation.

[0053] Then, the third hydraulic rod 38 is extended again, causing the push plate 29 to move away from the mesh 21, and the through hole 33 gradually opens. Subsequently, the second hydraulic rod 23 is activated, causing the inner ring 26 and outer ring 31 to move away from the round bundle 44. The first hydraulic rod 11 is activated, causing it to shorten and rotate the rotating support 9 away from the conveyor belt 7, thus causing the bundled round bundle 44 on the rotating support 9 to fall.

[0054] Then, the first hydraulic rod 11 is extended, thereby resetting the rotating support 9. The first motor 12 is started to reset the side plate 14 so that the harvesting and baling work can continue.

[0055] Example 2: This example is an improvement on Example 1, and only the parts that are different from those in Example 1 are described.

[0056] An air outlet 42 is provided on the side wall of the bundling box 6, and the air outlet 42 is coaxially arranged with the through hole 33. An exhaust fan 43 is installed in the air outlet 42. The exhaust fan 43 keeps the mesh 21 at the end of the round bundle 44 straight, so that the mesh 21 can be smoothly inserted into the through hole 33.

[0057] When the mesh 21 is wrapped around the round bundle 44, the exhaust fan 43 is turned on to generate an outward suction force on the mesh 21, so that the mesh 21 at the end of the round bundle 44 remains straight, thus preventing the mesh 21 at the end of the round bundle 44 from drooping. This helps to ensure the wrapping quality of the mesh 21 and also facilitates the next step of bundling.

[0058] Example 3: The net feeding assembly includes an electric telescopic rod and a mounting block. A fourth sliding hole is provided on the bundling box 6. The mounting block is slidably installed in the fourth sliding hole. The mounting block is rotatably connected to the output end of the electric telescopic rod. Two clamping blocks are installed on the mounting block. The two clamping blocks are close to each other to clamp the end of the net 21.

[0059] After the two clamping blocks clamp the end of the mesh 21, the mounting block moves toward the round bundle 44, thereby sending the mesh 21 between the round bundle 44 and the upper end of the rotating support 9.

[0060] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A baling mechanism for a harvester, characterized in that: The system includes a walking unit (1), a harvesting unit (3), a conveying unit (2), and a baling unit. A frame is installed on the walking unit (1). The harvesting unit (3), the conveying unit (2), and the baling unit are sequentially installed on the frame. The conveying unit (2) transports the material harvested by the harvesting unit (3) to the baling unit. The baling unit includes a baling box (6) and a baling assembly installed in the baling box (6) for rolling the harvested material into round bundles (44), a wrapping assembly for wrapping a mesh (21) around the round bundles (44), and a closing assembly. The mesh (21) extends to the outside of both ends of the round bundles (44). The closing assembly closes the mesh (21) at the ends of the round bundles (44). The closing assembly includes an outer ring (31), an inner ring (26), and a push plate (29). The inner ring (26) is elastically rotatably mounted on the bundling box (6). The outer ring (31) and the inner ring (26) are rotatably connected. The outer ring (31) has a regular polygonal groove (32) inside. Each side of the groove (32) is provided with a square rod (30). The square rod (30) is connected to the push plate (29). The push plate (29) is connected to a round rod (28). The round rod (28) is slidably disposed in the second sliding hole (27) on the inner ring (26). Both the outer ring (31) and the inner ring (26) have through holes (33).

2. The baling mechanism for a harvester according to claim 1, characterized in that: The bundling assembly includes a rotating tray (9) and an extrusion belt (15); a base (8) is fixedly installed on the bottom wall of the bundling box (6), and the rotating tray (9) is rotatably installed on the base (8); the upper end of the rotating tray (9) is arc-shaped, and multiple drive rollers (10) are rotatably installed on the upper end of the rotating tray (9); a rotating rod (13) is rotatably installed inside the bundling box (6); two side plates (14) are symmetrically fixedly installed on the rotating rod (13); a drive shaft (19) and multiple limiting shafts (45) are rotatably installed between the two side plates (14); the extrusion belt (15) is wound between the drive shaft (19) and the multiple limiting shafts (45); the extrusion belt (15) and the drive rollers (10) are configured to roll the material on the rotating tray (9) into a round bundle (44).

3. The baling mechanism for a harvester according to claim 2, characterized in that: A pressure roller (16) for tensioning the extrusion belt (15) is provided between the two side plates (14); each side plate (14) is provided with a first sliding hole (17), and the pressure roller (16) is slidably disposed between the two first sliding holes (17).

4. The baling mechanism for a harvester according to claim 3, characterized in that: A swing rod (18) is elastically mounted on the side plate (14) via a rotating rod, and the end of the pressing roller (16) is connected to the swing rod (18); the first sliding hole (17) is arc-shaped, and the rotating rod is coaxially arranged with the first sliding hole (17).

5. The baling mechanism for a harvester according to claim 1, characterized in that: The winding assembly includes a wire roller (20) and a cutter (22), with the wire mesh (21) wound around the wire roller (20); the cutter (22) is configured to cooperate with the wire mesh (21) and is used to cut the wire mesh (21).

6. The baling mechanism for a harvester according to claim 1, characterized in that: The inner ring (26) is fixedly connected to a support plate (39), and a fourth hydraulic rod (40) is installed on the support plate (39). A strapping clamp (41) is installed at the output end of the fourth hydraulic rod (40).

7. The baling mechanism for a harvester according to claim 1, characterized in that: The inner ring (26) has an arc groove (24), and a sliding block (46) is provided in the arc groove (24) for limiting sliding. A spring (25) is connected between the end of the sliding block (46) and the end of the arc groove (24). A second hydraulic rod (23) is installed on the bundling box (6). The output end of the second hydraulic rod (23) is connected to the sliding block (46). The second hydraulic rod (23) drives the inner ring (26) to move closer to or away from the round bundle (44) through the sliding block (46).

8. The baling mechanism for a harvester according to claim 1, characterized in that: The bundling box (6) is provided with a third sliding hole (36), and a pull rod (35) is slidably arranged in the third sliding hole (36). The pull rod (35) is connected to an extension plate (34), and the extension plate (34) is connected to an outer ring (31). The bundling box (6) is equipped with a third hydraulic rod (38), the output end of which is connected to a limit ring (37), and the pull rod (35) moves through the limit ring (37).

9. The baling mechanism for a harvester according to claim 1, characterized in that: The bundling box (6) is provided with an air outlet (42), which is coaxially arranged with the through hole (33), and an exhaust fan (43) is installed inside the air outlet (42).

10. The baling mechanism for a harvester according to claim 2, characterized in that: A first hydraulic rod (11) is provided between the base (8) and the rotating support (9). One end of the first hydraulic rod (11) is hinged to the base (8), and the other end of the first hydraulic rod (11) is hinged to the rotating support (9).

Images