Straw collecting machine

Abstract

The utility model relates to a straw collecting machine, and belongs to the technical field of agricultural machinery. The problems that when an existing straw collecting machine works, vibration of a machine body is large, the cutting effect is affected, and working efficiency is low are solved. According to the technical key points, the harvester comprises a shell, a shaft tube, a picking cutter claw, a fan assembly, an air duct, a suspension bracket, a first gearbox, a transmission shaft, a second gearbox and a damping tail wheel assembly, wherein the shaft tube is arranged in the shell; a plurality of picking cutter claws are mounted on the shaft tube; the top of the shell is communicated with two fan assemblies, and each fan assembly is communicated with an air duct; the suspension bracket is mounted on the front side of the shell; a first gearbox is installed on the rear side of the shell, and a power input shaft is arranged on the front side of the first gearbox. The left side and the right side of the shell are each provided with a second gearbox. The first gearbox is in transmission connection with the second gearbox through a transmission shaft and can drive the fan assembly and the shaft tube to work; two damping tail wheel assemblies are installed on the rear side of the shell. The straw smashing and collecting device is used for smashing and collecting straw.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of agricultural machinery, especially relates to a straw collecting machine. BACKGROUND

[0002] The straw collecting machine is an agricultural machine, mainly used for collecting and processing crop straw. It can help farmers to crush and collect the harvested crop straw, so as to facilitate subsequent feed processing or direct return to the field. The emergence of the straw collecting machine greatly improves the agricultural production efficiency, reduces the labor intensity of farmers, and is helpful to environmental protection.

[0003] The existing straw collecting machine usually adopts a traction type or a self-propelled structure, cuts the straw by rotating cutters, and collects the straw into a material collecting box by using a fan. However, the existing straw collecting machine still has some problems in actual application. First, the existing straw collecting machine lacks effective shock-absorbing devices, and when the straw collecting machine works in the uneven field, the machine body will vibrate violently, causing the cutters to directly contact the ground, affecting the chopping effect of the straw, and thus reducing the collection efficiency. Second, the traditional straw collecting machine usually adopts a single fan system. Although the single fan system is simple in structure, the negative pressure generated by only one fan limits the operation efficiency, resulting in low working efficiency, which is difficult to meet the requirements of large-scale straw collection. SUMMARY

[0004] In view of the above problems of the existing straw collecting machine, such as large machine body vibration affecting the cutting effect and low operation efficiency during operation, the purpose of the utility model is to provide a straw collecting machine. The collecting machine effectively alleviates the machine body vibration by improving the shock-absorbing device, improves the straw collection efficiency and quality, expands the application range, and provides strong support for the resource utilization of straw.

[0005] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] A straw collector includes: a housing 1, a shaft tube 2, picking claws 3, a fan assembly 4, a blower duct 5, a suspension frame 6, a first gearbox 7, a drive shaft 8, a second gearbox 9, and a shock-absorbing tail wheel assembly 10. The shaft tube 2 is disposed inside the housing 1 and rotatably connected to the left and right sides of the housing 1. Multiple picking claws 3 are installed on the outer wall of the shaft tube 2. Two fan assemblies 4 are connected to the top of the housing 1, and a blower duct 5 is connected to each fan assembly 4. The suspension frame 6 is installed on the front side of the housing 1. The first gearbox 7 is installed on the housing 1, and a power input shaft is provided on the front side of the first gearbox 7. The power input shaft is connected to the power output shaft of a tractor. A second gearbox 9 is installed on each of the left and right sides of the housing 1. The left and right ends of the first gearbox 7 are respectively connected to the second gearbox 9 on both sides through a drive shaft 8. Both ends of the shaft tube 2 are respectively connected to a second gearbox 9. Each fan assembly 4 is connected to a second gearbox 9. Two shock-absorbing tail wheel assemblies 10 are rotatably installed on the rear side of the housing 1.

[0007] Furthermore, the fan assembly 4 includes a fan housing 41, a rotating shaft 42, and a fan wheel 43. The fan wheel 43 is mounted on the rotating shaft 42, and the rotating shaft 42 is rotatably mounted inside the fan housing 41. One end of the rotating shaft 42 extends into and is connected to the second gearbox 9.

[0008] Furthermore, the fan housing 41 is provided with an installation space 44 and a conveying channel 45. The top of the installation space 44 is connected to the air duct 5. The fan wheel 43 is disposed in the installation space 44. A conveying channel 45 is connected to each side of the installation space 44, and the bottom ends of the two conveying channels 45 are connected to the inside of the housing 1.

[0009] Furthermore, the two second gearboxes 9 are arranged symmetrically on the left and right sides. Each second gearbox 9 is provided with a first pulley 91, a second pulley 92 and a third pulley 93. Each drive shaft 8 is connected to one of the first pulleys 91; each rotating shaft 42 is connected to one of the second pulleys 92; the left end and the right end of the shaft tube 2 are respectively connected to one of the third pulleys 93; the first pulley 91 and the second pulley 92 are driven by a belt; the first pulley 91 and the third pulley 93 are driven by a belt.

[0010] Furthermore, it also includes a first main beam 11, which is installed on the front side of the housing 1; the suspension frame 6 is installed on the first main beam 11.

[0011] Furthermore, it also includes anti-vibration beams 12. Each fan assembly 4 has an anti-vibration beam 12 installed on its outer wall, and the bottom end of the anti-vibration beam 12 is connected to the first main beam 11.

[0012] Furthermore, it also includes a second main beam 13, which is mounted on the rear side of the housing 1; the first gearbox 7 and the two shock-absorbing tail wheel assemblies 10 are both mounted on the second main beam 13.

[0013] Furthermore, the shock-absorbing tail wheel assembly 10 includes a mounting base 101, a connecting base 102, a roller bracket 103, a shock-absorbing spring 104, a limiting rod 105, and a roller 106. The mounting base 101 is mounted on the second main beam 13; the front side of the connecting base 102 is rotatably connected to the mounting base 101 via a longitudinally arranged pin; the roller bracket 103 is rotatably connected to the rear side of the connecting base 102 via a transversely arranged pin; the connecting base 102 is provided with a first limiting groove 107, which reduces... The top end of the shock-absorbing spring 104 abuts against the first limiting groove 107; the roller bracket 103 is provided with a second limiting groove 108, and the bottom end of the shock-absorbing spring 104 abuts against the second limiting groove 108; the shock-absorbing spring 104 is installed between the first limiting groove 107 and the second limiting groove 108 through the limiting rod 105, and the limiting rod 105 is used to limit the maximum distance between the first limiting groove 107 and the second limiting groove 108; the roller 106 is rotatably mounted on the roller bracket 103.

[0014] Furthermore, it also includes a traction seat 14, which is mounted on the second main beam 13.

[0015] Furthermore, the air duct 5 is provided with a material outlet 51 and an air outlet 52, and a filter screen is installed at the air outlet 52.

[0016] Because this utility model employs the aforementioned technology, it has the following positive effects compared to existing technologies:

[0017] (1) The lateral rotation function of the shock-absorbing tail wheel assembly of this utility model allows for flexible angle adjustment, better adapting to uneven ground. Its longitudinal shock-absorbing function effectively mitigates severe vibrations caused by terrain undulations during operation. Compared to traditional straw collectors, this utility model ensures relatively stable contact between the picking claws and the ground, guaranteeing consistent straw cutting results. This improves straw cutting efficiency, reduces straw loss or incomplete shredding, and makes the collected straw more neat and compact, less prone to scattering, avoiding secondary pollution and enhancing the overall quality and efficiency of straw collection.

[0018] (2) This utility model is equipped with two fan assemblies, which can form a more uniform and efficient airflow within the casing. During the straw collection process, the airflow can more effectively suck in the chopped straw and transport it to the collection compartment, greatly improving the straw recycling rate. Compared with a single fan system, it increases the working width and improves work efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a straw collector according to the present invention.

[0020] Figure 2 This is a rear side view of a straw collector according to this utility model.

[0021] Figure 3 This is a right-side view of a straw collector according to this utility model.

[0022] Figure 4 This is an internal structural view of a straw collector according to this utility model.

[0023] Figure 5 This is an internal structural view of a straw collector according to this utility model.

[0024] Figure 6 This is an internal structural view of the second gearbox of a straw collector according to this utility model.

[0025] Figure 7 This is an exploded view of the shock-absorbing tail wheel assembly of a straw collector according to this utility model.

[0026] Figure 8 This is a cross-sectional view of the connecting seat of a straw collector according to this utility model.

[0027] In the attached diagram: 1. Housing; 2. Shaft tube; 3. Pickup claw; 4. Fan assembly; 41. Fan housing; 42. Rotating shaft; 43. Fan wheel; 44. Fan wheel chamber; 45. Conveying channel; 5. Air duct; 51. Discharge port; 52. Air outlet; 6. Suspension frame; 61. Inverted U-shaped bracket; 62. Bracket; 7. First gearbox; 8. Drive shaft; 9. Second gearbox; 91. First pulley; 92. Second pulley; 93. Third pulley; 10. Shock-absorbing tail wheel assembly; 101. Mounting seat; 102. Connecting seat; 103. Roller bracket; 104. Shock-absorbing spring; 105. Limiting rod; 106. Roller; 107. First limiting groove; 108. Second limiting groove; 11. First main beam; 12. Anti-vibration beam; 13. Second main beam; 14. Traction seat. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0029] Please refer to Figures 1 to 8The diagram shows a straw collector, comprising: a housing 1, a shaft tube 2, picking blades 3, a blower assembly 4, a blower duct 5, a suspension frame 6, a first gearbox 7, a drive shaft 8, a second gearbox 9, and a shock-absorbing tail wheel assembly 10. The shaft tube 2 is disposed inside the housing 1 and rotatably connected to the left and right sides of the housing 1. Multiple picking blades 3 are mounted on the outer wall of the shaft tube 2 for cutting and picking up straw. The bottom of the housing 1 is open for the picking blades 3 to operate. The top of the housing 1 is connected to two blower assemblies 4 to provide negative pressure, drawing straw into the housing 1. Each blower assembly 4 is connected to a blower duct 5 for conveying the straw to a collection compartment. The suspension frame 6 is mounted on the front side of the housing 1 for connecting to a tractor. A first gearbox 7 is mounted on the housing 1. The first gearbox 7 has a power input shaft on its front side, which is connected to the tractor's power output shaft. A second gearbox 9 is installed on each of the left and right sides of the housing 1. The left and right ends of the first gearbox 7 are connected to the second gearboxes 9 on both sides via a drive shaft 8, and the first gearbox 7 drives the two second gearboxes 9 to work. A gear set is installed inside the first gearbox 7, which drives the drive shaft 8 to rotate through the meshing of the gears. Both ends of the shaft tube 2 are connected to a second gearbox 9. Each blower assembly 4 is connected to a second gearbox 9. Two shock-absorbing tail wheel assemblies 10 are rotatably installed on the rear side of the housing 1 to help the device maintain stability during movement and ensure proper contact between the picking claw 3 and the ground during operation.

[0030] Furthermore, in a preferred embodiment, the fan assembly 4 includes a fan housing 41, a rotating shaft 42, and a fan wheel 43. The fan wheel 43 is mounted on the rotating shaft 42, and the rotating shaft 42 is rotatably mounted inside the fan housing 41. One end of the rotating shaft 42 extends into and is connected to the second gearbox 9.

[0031] Furthermore, in a preferred embodiment, the two fan assemblies 4 are arranged symmetrically on the left and right sides; the right side of the bottom end of the fan housing 41 on the left side is connected to the left side of the bottom end of the fan housing 41 on the right side.

[0032] Furthermore, in a preferred embodiment, a fan wheel chamber 44 and a conveying channel 45 are provided inside the fan housing 41; the top of the fan wheel chamber 44 is connected to the air duct 5; the fan wheel 43 is disposed inside the fan wheel chamber 44; a conveying channel 45 is connected to each side of the fan wheel chamber 44, and the bottom ends of the two conveying channels 45 are connected to the inside of the housing 1. When the fan wheel 43 rotates, the air in the fan wheel chamber 44 is discharged into the air duct 5, thereby generating negative pressure inside the housing 1 and the fan housing 41, which sucks in the crushed straw.

[0033] Furthermore, in a preferred embodiment, two second gearboxes 9 are arranged symmetrically on the left and right sides. Each second gearbox 9 is provided with a first pulley 91, a second pulley 92, and a third pulley 93. Each drive shaft 8 is connected to a first pulley 91; each rotating shaft 42 is connected to a second pulley 92; the left and right ends of the shaft tube 2 are respectively connected to a third pulley 93; the first pulley 91 and the second pulley 92 are driven by belts; the first pulley 91 and the third pulley 93 are driven by belts. During operation, the first gearbox 7 drives the drive shafts 8 at both ends to rotate. Each drive shaft 8 drives one first pulley 91 to rotate. One first pulley 91 drives the second pulley 92 on the same side to rotate via a belt. One second pulley 92 drives the rotating shaft 42 on the same side to rotate, thereby driving the fan wheel 43 on the same side to work. At the same time, one first pulley 91 drives the third pulley 93 on the same side to rotate via a belt. The third pulleys 93 on both sides simultaneously drive the shaft tube 2 to rotate, thereby driving the picking claw 3 to work.

[0034] Furthermore, in a preferred embodiment, a first main beam 11 is also included, which is installed on the front side of the housing 1. The first main beam 11 is arranged laterally. The first main beam 11 is connected to the front outer wall of the housing 1 by a plurality of reinforcing ribs. Preferably, the first main beam 11 is a square steel pipe with a side length of 100mm. The suspension frame 6 is installed on the first main beam 11. Since the suspension frame 6 is used to suspend the entire device on the tractor and lift the front side of the device, the installation of the suspension frame 6 on the first main beam 11 can improve the stability of the overall structure.

[0035] Furthermore, in a preferred embodiment, the suspension frame 6 includes an inverted U-shaped bracket 61 and two brackets 62; the bottom end of the inverted U-shaped bracket 61 is connected to the first main beam 11; both brackets 62 are connected to the first main beam 11. This device is connected to the tractor via a three-point suspension.

[0036] Furthermore, in a preferred embodiment, a vibration damping beam 12 is also included. Each fan assembly 4 has a vibration damping beam 12 installed on its outer wall, and the bottom end of the vibration damping beam 12 is connected to the first main beam 11. The vibration damping beam 12 can improve the operational stability of the fan assembly 4 and prevent resonance.

[0037] Furthermore, in a preferred embodiment, a second main beam 13 is also included, which is installed on the rear side of the housing 1. The second main beam 13 is arranged laterally. The second main beam 13 is connected to the rear outer wall of the housing 1 by multiple reinforcing ribs. Preferably, the second main beam 13 is a square steel tube with a side length of 100mm. The first gearbox 7 and the two shock-absorbing tail wheel assemblies 10 are both installed on the second main beam 13. Installing the first gearbox 7 and the shock-absorbing tail wheel assemblies 10 on the second main beam 13 can directly utilize the high-strength structural characteristics of the beam to improve the overall load-bearing capacity.

[0038] Furthermore, in a preferred embodiment, a channel is provided between the two fan housings 41, through which the tractor's power output shaft passes and is connected to the power input shaft of the first gearbox 7.

[0039] Furthermore, in a preferred embodiment, the shock-absorbing tail wheel assembly 10 includes a mounting base 101, a connecting base 102, a roller bracket 103, a shock-absorbing spring 104, a limiting rod 105, and a roller 106. The mounting base 101 is mounted on the second main beam 13. The front side of the connecting base 102 is rotatably connected to the mounting base 101 via a longitudinally arranged pin. The roller bracket 103 is rotatably connected to the rear side of the connecting base 102 via a transversely arranged pin, allowing the shock-absorbing tail wheel assembly 10 to swing laterally. The laterally swinging shock-absorbing tail wheel assembly 10 can better adapt to uneven ground, reducing machine vibration and wear, thereby extending the machine's service life. The connecting base 102 is provided with a first limiting groove 107, and the top end of the shock-absorbing spring 104 abuts against the first limiting groove. Inside the groove 107; a second limiting groove 108 is provided on the roller bracket 103, and the bottom end of the shock-absorbing spring 104 abuts against the second limiting groove 108; the shock-absorbing spring 104 is installed between the first limiting groove 107 and the second limiting groove 108 through the limiting rod 105, and the limiting rod 105 is used to limit the maximum distance between the first limiting groove 107 and the second limiting groove 108; the roller 106 is rotatably installed on the roller bracket 103, and the roller 106 is in contact with the ground. When the auxiliary device moves, when the roller 106 is impacted or vibrated, the roller bracket 103 applies pressure to the shock-absorbing spring 104, and the shock-absorbing spring 104 will undergo elastic deformation, thereby playing a buffering role, so that the picking claw 3 maintains relatively stable contact with the ground, ensuring stable straw cutting effect.

[0040] Furthermore, in a preferred embodiment, the connecting seat 102 is provided with a first through hole, which communicates with the first limiting groove 107; the roller bracket 103 is provided with a second through hole, which communicates with the second limiting groove 108. During installation, the limiting rod 105 is inserted from the bottom end of the second through hole, then passes through the shock-absorbing spring 104, until the upper end of the limiting rod 105 exits from the first through hole. The upper end of the limiting rod 105 is mutually limited with the connecting seat 102 by a nut, and the limiting rod 105 is mutually limited with the roller bracket 103 by the head provided at its lower end.

[0041] Furthermore, in a preferred embodiment, a traction seat 14 is also included. The traction seat 14 is mounted on the second main beam 13 and is used to traction the collection carriage. By utilizing the high-strength structural characteristics of the beam, the overall load-bearing capacity is improved.

[0042] Furthermore, in a preferred embodiment, the ventilation duct 5 is provided with a discharge port 51 and an air outlet 52, and a filter screen is installed at the air outlet 52; the discharge port 51 faces the rear, and the straw conveyed by the ventilation duct 5 is sprayed out from the discharge port 51 and then transported into the collection compartment; the air outlet 52 faces upward, and the air outlet 52 is used to discharge dust in the ventilation duct 5. Moreover, the air outlet 52 reduces the resistance of the straw in the ventilation duct 5 with the help of airflow, while avoiding material blockage and ensuring continuous output of straw at the discharge port 51; the filter screen installed at the air outlet 52 is used to intercept the crushed straw, prevent the straw from being sprayed out from the air outlet 52, and also prevent foreign objects from entering the ventilation duct 5 from the air outlet 52.

[0043] In a further embodiment of this utility model, multiple picking claws 3 are spirally distributed on the shaft tube 2 to facilitate the conveying of straw.

[0044] In a further embodiment of the present invention, the housing 1 includes a main housing and side plates, with a side plate connected to each of the left and right ends of the main housing; the left and right ends of the first main beam 11 are connected to a side plate; the two ends of the second main beam 13 are connected to a side plate; and a drive shaft 8 is rotatably connected to a side plate.

[0045] Working principle:

[0046] The device is suspended at the front of the tractor via a suspension frame 6, connected to the tractor's power output shaft via the power input shaft at the front of the first gearbox 7, and connected to the collection compartment via a traction frame 14 at the rear. When the straw collector starts working, the first gearbox 7 drives two second gearboxes 9 via drive shafts 8 at both ends, which in turn drives two blower wheels 43 and a shaft tube 2. As the shaft tube 2 rotates, multiple picking claws 3 crush the straw on the ground and bring the crushed straw into the housing 1. At the same time, the blower assembly 4 generates negative pressure, drawing the crushed straw from the housing 1 into the blower duct 5, and then spraying it out from the discharge port 51, finally entering the collection compartment. During the operation of this device, the shock-absorbing tail wheel assembly 10 plays a role in assisting movement and absorbing shocks.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A straw collector, characterized in that: The assembly includes a housing (1), a shaft tube (2), a pickup claw (3), a fan assembly (4), a fan duct (5), a suspension frame (6), a first gearbox (7), a drive shaft (8), a second gearbox (9), and a shock-absorbing tail wheel assembly (10). The shaft tube (2) is located inside the housing (1) and is rotatably connected to the left and right sides of the housing (1). Multiple pickup claws (3) are installed on the outer wall of the shaft tube (2). Two fan assemblies (4) are connected to the top of the housing (1), and a fan duct (5) is connected to each fan assembly (4). The suspension frame (6) is installed on the front side of the housing (1). A first gearbox (7) is installed on the housing (1). A power input shaft is provided on the front side of the first gearbox (7), and the power input shaft is connected to the power output shaft of the tractor. A second gearbox (9) is installed on each of the left and right sides of the housing (1). The left and right ends of the first gearbox (7) are respectively connected to the second gearboxes (9) on both sides through a drive shaft (8). Both ends of the shaft tube (2) are respectively connected to a second gearbox (9). Each blower assembly (4) is connected to a second gearbox (9). Two shock-absorbing tail wheel assemblies (10) are rotatably installed on the rear side of the housing (1).

2. The straw collector according to claim 1, characterized in that: The fan assembly (4) includes a fan housing (41), a rotating shaft (42) and a fan wheel (43). The fan wheel (43) is mounted on the rotating shaft (42), which is rotatably mounted inside the fan housing (41). One end of the rotating shaft (42) extends into and is connected to the second gearbox (9).

3. The straw collector according to claim 2, characterized in that: The fan housing (41) is provided with an installation space (44) and a conveying channel (45). The top of the installation space (44) is connected to the air duct (5). The fan wheel (43) is located in the installation space (44). A conveying channel (45) is connected to each side of the installation space (44). The bottom ends of the two conveying channels (45) are connected to the inside of the housing (1).

4. The straw collector according to claim 2, characterized in that: Two second gearboxes (9) are arranged symmetrically on the left and right. Each second gearbox (9) is provided with a first pulley (91), a second pulley (92) and a third pulley (93). Each drive shaft (8) is connected to a first pulley (91); each rotating shaft (42) is connected to a second pulley (92); the left and right ends of the shaft tube (2) are respectively connected to a third pulley (93); the first pulley (91) and the second pulley (92) are driven by a belt; the first pulley (91) and the third pulley (93) are driven by a belt.

5. The straw collector according to claim 1, characterized in that: It also includes a first main beam (11), which is installed on the front side of the housing (1); the suspension frame (6) is installed on the first main beam (11).

6. The straw collector according to claim 5, characterized in that: It also includes a shock-absorbing beam (12), and a shock-absorbing beam (12) is installed on the outer wall of each fan assembly (4), and the bottom end of the shock-absorbing beam (12) is connected to the first main beam (11).

7. The straw collector according to claim 1, characterized in that: It also includes a second main beam (13), which is mounted on the rear side of the housing (1); the first gearbox (7) and the two said shock-absorbing tail wheel assemblies (10) are both mounted on the second main beam (13).

8. The straw collector according to claim 7, characterized in that: The shock-absorbing tail wheel assembly (10) includes a mounting base (101), a connecting base (102), a roller bracket (103), a shock-absorbing spring (104), a limiting rod (105), and a roller (106). The mounting base (101) is mounted on the second main beam (13). The front side of the connecting base (102) is rotatably connected to the mounting base (101) via a longitudinally arranged pin. The roller bracket (103) is rotatably connected to the rear side of the connecting base (102) via a transversely arranged pin. The connecting base (102) is provided with a first limiting groove (107). The top end of (104) abuts against the first limiting groove (107); the roller bracket (103) is provided with a second limiting groove (108), and the bottom end of the shock-absorbing spring (104) abuts against the second limiting groove (108); the shock-absorbing spring (104) is installed between the first limiting groove (107) and the second limiting groove (108) through the limiting rod (105), and the limiting rod (105) is used to limit the maximum distance between the first limiting groove (107) and the second limiting groove (108); the roller (106) is rotatably installed on the roller bracket (103).

9. The straw collector according to claim 7, characterized in that: It also includes a traction seat (14), which is mounted on the second main beam (13).

10. The straw collector according to claim 1, characterized in that: The air duct (5) is provided with a discharge port (51) and an air outlet (52), and a filter screen is installed at the air outlet (52).

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