A grain recovery device

Abstract

The utility model discloses a kernel recovery device, including first recovery device, second recovery device, transmission mechanism and power input and reversing mechanism. The power of corn harvester kernel recovery device is given transmission mechanism through power input and reversing mechanism, is given first recovery device and first recovery device respectively by transmission mechanism, drives first recovery device and second recovery device operation. The power input and reversing mechanism are used for making the direction of the rotation of first recovery device and second recovery device between positive and negative conversion. Because the double -way recovery path is arranged in the device, can realize and make the user can choose to use different kernel collection device according to own harvest habit and harvest area.

Description

Technical Field

[0001] This application relates to the field of agricultural machinery, and more particularly to a grain recovery device. Background Technology

[0002] Corn harvesters can harvest and husk corn in one operation, significantly reducing harvesting time and labor costs. Existing patent CN 221240881U discloses a kernel recovery device for a corn harvester, which uses a vertical lifting mechanism to collect kernels. This vertical kernel recovery device collects kernels into a large-capacity recovery bin, i.e., the corn harvester's grain bin. It is suitable for large-area harvesting, reducing downtime and improving harvesting efficiency. However, because the vertical lifting direction coincides with the direction of kernel gravity, kernels are prone to falling and clogging, resulting in low efficiency. Furthermore, the discharge port of the kernel recovery mechanism cannot adjust its height when the grain bin height changes, presenting certain limitations. When the harvesting area is small, using a small-capacity kernel recovery bin can improve harvesting efficiency, but the drawback is that once the kernel recovery bin is full, there is no large-capacity bin available to continue the recovery operation. In other words, existing corn harvesters cannot select different kernel collection devices based on the size of the harvesting area.

[0003] Therefore, how to enable users to choose different grain collection devices according to their own harvesting habits and the size of the harvested area, and how to make the grain recycling device more efficient and flexible in its setup, has become a technical problem that needs to be solved. Utility Model Content

[0004] This utility model provides a grain recovery device with dual recovery paths, allowing users to choose different grain collection devices according to their harvesting habits and harvesting area. It offers high flexibility, efficient recovery, and the installation angle of the recovery device can be flexibly adjusted according to the height of the corn harvester's grain bin, making it highly adaptable.

[0005] The technical solution of this application is: a grain recycling device, comprising: a first recycling device, a second recycling device, a transmission mechanism, and a power input and reversing mechanism; the first recycling device is horizontally arranged and includes a first grain collection box and a first grain conveying auger; the first grain conveying auger is disposed inside the first grain collection box, and a grain outlet is provided at the bottom of the first recycling device; the second recycling device is inclined and includes a second grain collection box, a second grain conveying auger, and a second grain discharge outlet; a second grain discharge outlet is provided at the end of the second grain collection box away from the first recycling device; the second grain conveying auger is disposed inside the second grain collection box; the transmission mechanism includes a drive sprocket, a first grain conveying auger drive sprocket, a second grain conveying auger sprocket, and a chain; the drive sprocket, the first grain conveying auger drive sprocket, and the second grain conveying auger sprocket are connected by chain drive; the first grain conveying auger drive sprocket and the first grain conveying auger... The auger is fixedly connected to the second grain conveying auger sprocket, and the second grain conveying auger is driven by the auger. The power input and reversing mechanism includes a power input shaft, a drive sprocket drive shaft, and a reversing shaft. One end of the drive sprocket drive shaft is fixedly connected to the drive sprocket. A power input gear is provided on the power input shaft, and the power input gear is sleeved on the power input shaft and can move along the axial direction of the power input shaft. A drive sprocket drive gear I and a drive sprocket drive gear II are fixedly provided on the drive sprocket drive shaft. A reversing gear is provided on the reversing shaft, and the reversing gear meshes with the drive sprocket drive gear II. When the power input gear moves along the axial direction of the power input shaft to a first predetermined position, the power input gear meshes with the drive sprocket drive gear I. When the power input gear moves along the axial direction of the power input shaft to a second predetermined position, the power input gear meshes with the reversing gear.

[0006] Furthermore, the transmission mechanism includes a second seed conveying auger drive gear, a second seed conveying auger driven gear, and a second seed conveying auger gear drive shaft. One end of the second seed conveying auger gear drive shaft is fixedly connected to the second seed conveying auger sprocket, and the other end is fixedly connected to the second seed conveying auger drive gear. The second seed conveying auger driven gear is fixedly connected to the second seed conveying auger, and the second seed conveying auger drive gear and the second seed conveying auger driven gear mesh.

[0007] Furthermore, the second seed conveying auger drive gear and the second seed conveying auger driven gear are bevel gears.

[0008] Furthermore, the power input shaft is provided with a splined shaft section, the power input gear is provided with a splined hole at its center, the splined hole of the power input gear is clearance-fitted with the splined shaft section, and the power input gear is sleeved on the splined shaft section through the splined hole and can move along the axial direction of the power input shaft on the splined shaft section.

[0009] Furthermore, one end of the second grain collection box is connected to the first grain collection box.

[0010] Furthermore, the first recycling device includes a first fan plate, which is disposed at one end of the first grain conveying auger near the second recycling device and is fixedly connected to the first grain conveying auger.

[0011] Furthermore, the first recycling device includes a first grain guide cylinder, the top of which is connected to the grain outlet at the bottom of the first grain collection box, and the bottom of which is connected to the grain recycling box installed on the corn harvester.

[0012] Furthermore, the second recycling device includes a second fan plate, which is disposed at the second grain outlet and fixedly connected to the second grain conveying auger.

[0013] Furthermore, the power input and reversing mechanism includes a reversing device, which includes a shift handle, a shift shaft, a shift fork sleeve, a shift fork, and a limit seat;

[0014] The limiting seat is provided with two limiting slots, and the shift handle can switch between the two limiting slots. The shift handle is rotatably sleeved on the shift shaft, and the shift handle is axially limited on the shift shaft. A shift fork sleeve is fixedly sleeved on the shift shaft, and a shift fork is fixedly installed on the shift fork sleeve. A limiting groove is provided on one side of the axial direction of the power input gear, and the shift fork is accommodated in the limiting groove. When the power input gear rotates with the input shaft, the shift fork does not rotate with it.

[0015] Furthermore, along the axial direction of the conversion shaft, the distance between the two limiting slots is consistent with the distance between the first predetermined position and the second predetermined position.

[0016] The advantages of this utility model compared with the prior art are as follows:

[0017] 1. This utility model's grain recovery device features a dual-path recovery system. When the harvested area is small, due to the limited feed rate, the user can select a horizontally positioned first recovery device. A small-capacity grain recovery bin can be installed at the bottom of the first recovery device. Since the grains move horizontally first and then vertically during collection, using the first recovery device alone effectively reduces corn grain loss during harvesting and ensures high harvesting efficiency. When the harvested area is large, a second recovery device positioned at an angle can be selected to operate in conjunction with the first recovery device. A large-capacity recovery bin, essentially a corn harvester's grain bin, can be installed at the other end of the second recovery device. This operating mode meets the requirements of long-term operation of the corn harvester, effectively reducing downtime and improving operational efficiency.

[0018] When the harvested area is moderate, users can first choose to use the first recycling device. After the small-capacity grain recycling bin is full, turn on the switching handle and then use the second recycling device and the first recycling device to recycle the grain into the large-capacity corn harvester bin. The grain recycling device of this utility model is flexible and versatile in its use, and is more in line with the different harvesting habits and needs of users.

[0019] 2. In the grain recovery device of this utility model, a conveying auger is used to transport corn grains. This spiral rotation method provides high efficiency and continuity in grain collection and is suitable for switching between two rotation directions. The auger conveying method is particularly suitable for the inclined second recovery device, as it is less prone to clogging. Furthermore, in this utility model, the shape of the second conveying auger matches that of the second grain collection box, further ensuring that fewer corn grains are missed or fall during the recovery process, effectively reducing harvesting losses.

[0020] 3. In this invention, the second recycling device is inclined, and the second grain discharge outlet is located at the highest point of the second grain conveying auger. Preferably, the driving gear and driven gear of the second grain conveying auger can be bevel gears. Bevel gears can withstand larger loads and are suitable for transmission under heavy loads or impact loads. Since the meshing of bevel gears is continuous, it can provide smooth transmission and reduce vibration and noise. Furthermore, in this invention, when the rotation direction of the second grain conveying auger gear drive shaft changes, the bevel gear transmission can easily achieve the conversion between forward and reverse transmission.

[0021] 4. In the utility model, the driving gear of the second grain conveying auger and the driven gear of the second grain conveying auger are set as bevel gears. When the tilt angle design of the second recovery device changes, the meshing line of the bevel gear can flexibly change to different positions with the change of the tilt angle of the second grain conveying auger, which has good adaptability and can adapt to the second recovery device with different tilt angles, that is, it can adapt to the height changes of the grain bin of the large-capacity corn harvester.

[0022] 5. The power input and reversing mechanism in this utility model uses gear meshing for transmission, which is smooth and precise and can withstand large loads. In the specific implementation, the power input and reversing mechanism is extremely simple in structure, using only three drive shafts and four gears to realize the reversal operation of the rotation direction of the drive shaft of the active sprocket. The power input and reversing mechanism of this utility model has a compact structure and good operability and reliability.

[0023] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the grain recycling device of this utility model;

[0025] Figure 2 This is a schematic diagram of the grain recycling device of this utility model from another angle;

[0026] Figure 3 This is a schematic diagram of the connection structure between the first grain conveying auger and the first fan plate in the grain recycling device of this utility model.

[0027] Figure 4 This is a schematic diagram of the structure of the second grain discharge port and photoelectric sensor in the second recycling device of the present invention.

[0028] Figure 5 This is a schematic diagram of the connection structure between the second grain conveying auger and the second fan plate in the grain recycling device of this utility model.

[0029] Figure 6 This is a schematic diagram of the transmission mechanism in the grain recycling device of this utility model;

[0030] Figure 7 This is a schematic diagram of the transmission mechanism and the power input and reversing mechanism in the grain recycling device of this utility model;

[0031] Figure 8 This is a schematic diagram of the power input and reversing mechanism in the grain recycling device of this utility model, with the gearbox body hidden.

[0032] Figure 9 This is a schematic diagram showing the connection between the reversing device and the power input shaft in the grain recycling device of this utility model;

[0033] Figure 10 for Figure 9 An exploded view of the structural schematic diagram of the commutation device in the diagram.

[0034] Figure Numbers: 1-First Recycling Device; 11-First Grain Collection Box; 12-First Grain Conveying Screw; 13-First Grain Guide Cylinder; 14-First Impurity Removal Fan; 15-First Fan Plate; 2-Second Recycling Device; 21-Second Grain Collection Box; 22-Second Grain Conveying Screw; 23-Second Grain Discharge Outlet; 24-Second Impurity Removal Fan; 25-Second Fan Plate; 26-Photoelectric Sensor; 3-Transmission Mechanism; 31-Sprocket Mounting Plate; 32-Drive Sprocket; 33-First Grain Conveying Screw Drive Sprocket; 34-Second Grain Conveying Screw Sprocket; 35-Chain; 36-Second Grain Conveying Screw Drive Gear; 37-Second Grain Conveying Screw Drive Gear; 38-Second Grain Conveying Screw Gear Drive Shaft; 39-Tensioner; 4-Power Transmission 40-Gearbox housing; 41-Power input shaft; 411-Power input gear; 4111-Limiting groove; 412-Splined shaft section; 413-Power input sprocket; 42-Drive sprocket drive shaft; 421-Drive sprocket drive gear I; 422-Drive sprocket drive gear II; 43-Reversing shaft; 431-Reversing gear; 44-Reversing device; 441-Shift handle; 4411-Shift handle sleeve; 4412-Handle lever; 442-Shift shaft; 4421-Positioning stop; 4422-Limiting nut; 443-Shift fork sleeve; 444-Shift fork; 4441-Fork connection end; 445-Limiting seat; 4451-First limit slot; 4452-Second limit slot; 4453-Slot connection part. Detailed Implementation

[0035] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the specific embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0036] The technical solution of this application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0037] like Figure 1-10 As shown, the grain recovery device of this utility model is suitable for corn harvesters. It includes a first recovery device 1, a second recovery device 2, a transmission mechanism 3, and a power input and reversing mechanism 4. The power input and reversing mechanism 4 transmits power to the transmission mechanism 3, which in turn transmits it to the first recovery device 1 and the second recovery device 2, thereby driving the first recovery device 1 and the second recovery device 2 to operate.

[0038] The first recycling device 1 is horizontally arranged and includes a first grain collection box 11, a first grain conveying auger 12, a first grain guide cylinder 13, a first impurity removal fan 14, and a first fan blade 15. The first grain conveying auger 12 is horizontally arranged inside the first grain collection box 11, and the first fan blade 15 is arranged at one end of the first grain conveying auger 12 near the second recycling device 2 and is fixedly connected to the first grain conveying auger 12. Preferably, the fan blades of the first fan blade 15 extend outward from the axial direction of the first grain conveying auger 12. The first grain guide cylinder 13 and the first impurity removal fan 14 are both arranged on the side of the first grain collection box 11 away from the second recycling device 2. The top of the first grain guide cylinder 13 is connected to the grain outlet at the bottom of the first grain collection box 11, the bottom of the first grain guide cylinder 13 is connected to the grain recycling box (not shown in the figure) installed on the corn harvester, and one side of the first grain guide cylinder 13 is connected to the first impurity removal fan 14.

[0039] When the kernels are collected by the kernel collection box of the corn harvester, the first kernel conveying auger 12 rotates and pushes the kernels that have fallen off the peeling machine to move horizontally to the top of the first kernel guide cylinder 13 and fall into the kernel collection box of the corn harvester. During this process, the impurities mixed with the kernels that have fallen off the peeling machine are discharged by the first impurity removal fan 14.

[0040] The second recycling device 2 is inclined and includes a second grain collection box 21, a second grain conveying auger 22, a second grain discharge outlet 23, a second impurity removal fan 24, and a second fan plate 25. One end of the second grain collection box 21 is connected to the first grain collection box 11 and is equipped with the second impurity removal fan 24, while the other end is equipped with the second grain discharge outlet 23. The second grain conveying auger 22 is disposed inside the second grain collection box 21, and the second fan plate 25 is disposed at the second grain discharge outlet 23 and is fixedly connected to the second grain conveying auger 22.

[0041] Preferably, the blades of the second fan plate 25 extend outward from the axial direction of the second grain conveying auger 22.

[0042] Preferably, the second grain collection box 21 is cylindrical, and the second grain conveying auger shaft is coaxially arranged with the second grain collection box 21.

[0043] Preferably, the tilt angle of the second recovery device 2 is set according to the position and height of the grain bin opening of the corn harvester. Preferably, the tilt angle of the second recovery device 2 is in the range of 30 degrees to 45 degrees.

[0044] More preferably, the second recycling device 2 includes a photoelectric sensor 26, which is disposed at one end of the second recycling device 2 away from the first grain collection box 11, and is used to detect whether the rotation state of the second grain conveying auger 22 is normal.

[0045] When the kernels are collected from the grain bin of the corn harvester, the first kernel conveying auger 12 rotates and pushes the kernels that have fallen off the peeler horizontally to the first fan plate 15. The blades of the first fan plate 15 then throw the kernels to the inlet of the second kernel collection box 21. The second kernel conveying auger 22 rotates and pushes the kernels that have entered from the inlet of the second kernel collection box 21 obliquely upward to the second fan plate 25. The blades of the second fan plate 25 then throw the kernels to the grain bin of the corn harvester. During this process, impurities mixed with the kernels that have fallen off the peeler are discharged by the second impurity removal fan 24.

[0046] The transmission mechanism 3 includes a sprocket mounting plate 31, a drive sprocket 32, a first grain conveying auger drive sprocket 33, a second grain conveying auger sprocket 34, a chain 35, a second grain conveying auger drive gear 36, a second grain conveying auger driven gear 37, and a second grain conveying auger gear transmission shaft 38.

[0047] The drive sprocket 32, the first grain conveying auger drive sprocket 33, and the second grain conveying auger sprocket 34 are connected by a chain 35. Specifically, the drive sprocket 32, the second grain conveying auger sprocket 34, and the chain 35 are all located on the same side of the sprocket mounting plate 31. One end of the drive sprocket drive shaft 42 in the power input and reversing mechanism 4 passes through the sprocket mounting plate 31 and is fixedly connected to the drive sprocket 32. One end of the second grain conveying auger gear drive shaft 38 passes through the sprocket mounting plate 31 and is fixedly connected to the second grain conveying auger sprocket 34, while the other end is fixedly connected to the second grain conveying auger drive gear 36. The second grain conveying auger driven gear 37 is fixedly connected to the shaft of the second grain conveying auger 22. The second grain conveying auger drive gear 36 and the second grain conveying auger driven gear 37 mesh. The rotation of the second grain conveying auger sprocket 34 drives the second grain conveying auger gear drive shaft 38 to rotate, which in turn drives the second grain conveying auger drive gear 36 to rotate. The second grain conveying auger drive gear 36 and the second grain conveying auger driven gear 37 drive the second grain conveying auger 22 to rotate through gear transmission. The first grain conveying auger drive sprocket 33 is fixedly connected to the shaft of the first grain conveying auger 12. The rotation of the first grain conveying auger drive sprocket 33 drives the first grain conveying auger 12 to rotate synchronously.

[0048] Preferably, both the second grain conveying auger drive gear 36 and the second grain conveying auger driven gear 37 are bevel gears. Bevel gears can withstand larger loads and are suitable for transmission under heavy loads or impact loads. Because the meshing of bevel gears is continuous, they provide smooth transmission, reducing vibration and noise. Bevel gears can be used in various working environments, including harsh environments such as high temperature, high humidity, and dust, making them suitable for the farmland harvesting environment of the grain recovery device of this invention. Furthermore, in this invention, when the rotation direction of the second grain conveying auger gear drive shaft 38 changes, the bevel gear transmission can easily switch between forward and reverse transmission. When the tilt angle of the second recovery device 2 changes, the meshing line of the bevel gears can flexibly change with the tilt angle of the second grain conveying auger 22, ensuring smooth transmission while also having good adaptability. This allows it to adapt to the installation position of the second recovery device 2 at different tilt angles, i.e., it can adapt to the grain bins of corn harvesters at different heights.

[0049] More preferably, the transmission mechanism 3 includes a tensioning wheel 39, which is mounted on the sprocket mounting plate 31 via a tensioning shaft (not shown in the figure) and is used to adjust the tension of the chain 35.

[0050] The power input and reversing mechanism 4 includes a gearbox 40, a power input shaft 41, a drive sprocket drive shaft 42, a reversing shaft 43, and a reversing device 44.

[0051] The gearbox 40 is equipped with a power input gear 411, a drive sprocket drive gear I 421, a drive sprocket drive gear II 422, and a reversing gear 431.

[0052] One end of the power input shaft 41 is located inside the gearbox 40 and can rotate within the gearbox 40, while the other end passes through the gearbox 40 and a power input sprocket 413 is fixedly installed at that end.

[0053] Preferably, the power input sprocket 413 is connected to the engine of the corn harvester through a transmission component. Specifically, the power input sprocket 413 is directly connected to the engine of the corn harvester through a chain, or the power input sprocket 413 is connected to other transmission components of the corn harvester through a chain. The power connection method between the power input sprocket 413 and the corn harvester is not the invention content of this utility model, and its connection method is common knowledge in the field.

[0054] One end of the drive sprocket drive shaft 42 passes through the gearbox 40 and, as before, passes through the sprocket mounting plate 31 and is fixedly connected to the drive sprocket 32; the other end is located inside the gearbox 40 and can rotate in the gearbox 40. Both ends of the reversing shaft 43 are located in the gearbox 40 and can rotate in the gearbox 40.

[0055] A power input gear 411 is provided on the power input shaft 41. The power input gear 411 is sleeved on the power input shaft 41 and can move along the axial direction of the power input shaft 41.

[0056] Preferably, a splined shaft section 412 is provided on the power input shaft 41, and the power input gear 411 is sleeved on the splined shaft section 412 and can move along the axial direction of the power input shaft 41 on the splined shaft section 412. The power input gear 411 and the splined shaft section 412 are clearance-fitted. More preferably, a splined hole is provided in the center of the power input gear 411, and the splined hole is clearance-fitted with the splined shaft section 412. The clearance between the splined hole of the power input gear 411 and the splined shaft section 412 is 0.05mm to 0.15mm. By setting the clearance within the above range, it is ensured that the power input gear 411 and the splined shaft section 412 are tightly fitted and can transmit a large torque, and that the power input gear 411 slides smoothly and without jamming on the splined shaft section 412.

[0057] A drive sprocket drive gear I 421 and a drive sprocket drive gear II 422 are fixedly mounted on the drive sprocket drive shaft 42; a reversing gear 431 is mounted on the reversing shaft 43, and the reversing gear 431 meshes with the drive sprocket drive gear II 422. When the power input gear 411 moves along the axial direction of the power input shaft 41 to a first predetermined position, the power input gear 411 meshes with the drive sprocket drive gear I 421; when the power input gear 411 moves along the axial direction of the power input shaft 41 to a second predetermined position, the power input gear 411 meshes with the reversing gear 431.

[0058] The reversing device 44 is used to change the position of the power input gear 411 on the splined shaft section 412. It includes a shift handle 441, a shift shaft 442, a shift fork sleeve 443, a shift fork 444, and a limit seat 445.

[0059] The limiting seat 445 is fixedly mounted on the gearbox body 40. The limiting seat 445 is provided with two limiting slots, namely the first limiting slot 4451 and the second limiting slot 4452. The first limiting slot 4451 and the second limiting slot 4452 are connected through the slot connecting part 4453. The switching handle 441 can switch between the first limiting slot 4451 and the second limiting slot 4452.

[0060] The conversion handle 441 is rotatably sleeved on the conversion shaft 442, and the conversion handle 441 can only rotate along the axial direction of the conversion shaft 442 relative to the conversion shaft 442. Specifically, the conversion handle 441 includes a conversion handle sleeve 4411 and a handle rod 4412 that are fixedly connected. One end of the conversion handle sleeve 4411 and the handle rod 4412 are fixedly connected. The conversion shaft 442 is provided with a positioning stop 4421, and one end of the conversion shaft 442 is provided with a thread. A detachable limiting nut 4422 is provided on the thread. The conversion handle sleeve 4411 is sleeved between the positioning stop 4421 and the limiting nut 4422 of the conversion shaft 442. The positioning stop 4421 and the limiting nut 4422 of the conversion shaft 442 work together to limit the axial position of the conversion handle sleeve 4411 on the conversion shaft 442.

[0061] The end of the conversion shaft 442 away from the limit nut 4422 passes through the gearbox 40 and the conversion shaft 442 can move axially relative to the gearbox 40 along the conversion shaft 442.

[0062] A shift fork sleeve 443 is fixedly sleeved on the shift shaft 442, and a shift fork 444 is fixedly mounted on the shift fork sleeve 443. A limiting groove 4111 is provided on one side of the axial direction of the power input gear 411. Preferably, the limiting groove 4111 is an annular groove. The shift fork 444 can be accommodated in the limiting groove 4111 of the power input gear 411. The axial position between the shift fork 444 and the power input gear 411 is limited by the limiting groove 4111. When the power input gear 411 rotates with the power input shaft 41, the shift fork 444 does not rotate accordingly. When the shift handle 441 drives the shift shaft 442 to move axially upward along the shift shaft 442, the shift fork 444 moves axially accordingly, thereby driving the power input gear 411 to move axially along the axis of the spline shaft section 412, so that the power input gear 411 can move between a first predetermined position and a second predetermined position.

[0063] Preferably, along the axial direction of the conversion shaft 442, the distance between the first limiting groove 4451 and the second limiting groove 4452 is consistent with the distance between the first predetermined position and the second predetermined position.

[0064] The power input and reversing mechanism 4 in this invention uses gear meshing transmission, which is smooth and precise and can withstand large loads. The power input and reversing mechanism 4 of this invention has an extremely simple structure, using only three drive shafts and four gears to achieve the reversing operation of changing the rotation direction of the drive shaft 42 of the active sprocket. The structure is compact and has good operability and reliability.

[0065] The power transmission process of this utility model is as follows:

[0066] When the power input gear 411 is in the first predetermined position, the power input sprocket 413 drives the power input shaft 41 to rotate. The power input gear 411 rotates, which in turn drives the drive sprocket drive gear I 421 to rotate, which in turn drives the drive sprocket drive shaft 42 to rotate. The drive sprocket drive gear II 422 rotates with the drive sprocket drive shaft 42, which in turn drives the reversing gear 431 to rotate, which in turn drives the reversing shaft 43 to rotate.

[0067] When the power input gear 411 is in the second predetermined position, the power input sprocket 413 drives the power input shaft 41 to rotate. The power input gear 411 rotates, which in turn drives the reversing gear 431 to rotate, which in turn drives the reversing shaft 43 and the drive sprocket drive gear II 422 to rotate. The rotation of the drive sprocket drive gear II 422 drives the drive sprocket drive shaft 42 to rotate. At this time, the drive sprocket drive gear I rotates with the drive sprocket drive shaft 42.

[0068] When the power input gear 411 is in the first predetermined position, the rotation direction of the drive sprocket drive shaft 42 is opposite to the rotation direction of the drive sprocket drive shaft 42 when the power input gear 411 is in the second predetermined position.

[0069] The rotation of the drive shaft 42 of the drive sprocket drives the drive sprocket 32 ​​to rotate. The drive sprocket 32 ​​drives the first grain conveying auger drive sprocket 33 and the second grain conveying auger sprocket 34 to rotate synchronously via the chain 35. The rotation of the first grain conveying auger drive sprocket 33 drives the first grain conveying auger 12 to rotate synchronously. The rotation of the second grain conveying auger sprocket 34 drives the second grain conveying auger gear drive shaft 38 to rotate, which in turn drives the second grain conveying auger drive gear 36 to rotate. The second grain conveying auger drive gear 36 and the second grain conveying auger driven gear 37 drive the second grain conveying auger 22 to rotate via gear transmission.

[0070] Example 1:

[0071] When the shift handle 441 is moved to the first limit slot 4451, the power input gear 411 moves to the first predetermined position. The power input gear 411 meshes with the drive sprocket gear I 421. The first grain conveying auger 12 rotates and pushes the grains that have fallen off the peeling machine to move horizontally to the first fan plate 15. The grains are then thrown by the blades of the first fan plate 15 to the inlet of the second grain collection box 21. The second grain conveying auger 22 rotates and pushes the grains that have entered the second grain collection box 21 to move obliquely upward to the second fan plate 25. The grains are then thrown by the blades of the second fan plate 25 to the grain bin of the corn harvester. During this process, impurities mixed with the grains that have fallen off the peeling machine are discharged by the second impurity removal fan 24.

[0072] When the shift handle 441 is moved to the second limit slot 4452, the power input gear 411 moves to the second predetermined position. The power input gear 411 meshes with the reversing gear 431. The first grain conveying auger 12 rotates and pushes the grains that have fallen off the peeling machine to move horizontally to the top of the first grain guide cylinder 13 and fall into the first grain guide cylinder 13 and enter the grain collection box of the corn harvester for collection. During this process, the impurities mixed with the grains that have fallen off the peeling machine are discharged by the first impurity removal fan 14.

[0073] Example 2:

[0074] When the shift handle 441 is moved to the first limit slot 4451, the power input gear 411 moves to the first predetermined position. The power input gear 411 meshes with the drive sprocket gear I 421. The first grain conveying auger 12 rotates and pushes the grains that have fallen off the peeling machine to move horizontally to the top of the first grain guide cylinder 13 and fall into the first grain guide cylinder 13 and enter the grain collection box of the corn harvester for collection. During this process, the impurities mixed with the grains that have fallen off the peeling machine are discharged by the first impurity removal fan 14.

[0075] When the shift handle 441 is moved to the second limit slot 4452, the power input gear 411 moves to the second predetermined position. The power input gear 411 meshes with the reversing gear 431. The first grain conveying auger 12 rotates and pushes the grains that have fallen off the peeling machine to move horizontally to the first fan plate 15. The grains are then thrown by the blades of the first fan plate 15 to the inlet of the second grain collection box 21. The second grain conveying auger 22 rotates and pushes the grains that have entered the second grain collection box 21 to move obliquely upward to the second fan plate 25. The grains are then thrown by the blades of the second fan plate 25 to the grain bin of the corn harvester. During this process, impurities mixed with the grains that have fallen off the peeling machine are discharged by the second impurity removal fan 24.

[0076] When the grain collection device of this utility model is in operation, if the harvesting area is small, the user can choose to use the grain collection bin to collect the grains. In this case, the grain collection direction is from top to bottom, which improves the collection efficiency. If the harvesting area is large, the user can choose to use the grain bin to collect the grains. The second collection device of this utility model is tilted, which can be applied to the grain bins of corn harvesters at different heights. Of course, the user can first use the grain collection bin to collect the grains, and then use the grain bin of the corn harvester to collect the grains after the grain collection bin is full. During this process, the user only needs to operate the conversion handle 441 to switch the grain collection path.

[0077] When using the grain recovery device of this utility model, users can flexibly select different recovery paths according to their own collection habits and feeding volume to adapt to different harvesting areas. The auger conveying method is particularly suitable for inclined recovery devices. The auger structure is simple, which can reduce production and manufacturing costs, and has high transmission efficiency and is not prone to clogging. When the inclination angle of the second recovery device 2 changes, the bevel gear meshing can achieve stable transmission while adapting to the installation position of the second recovery device 2 at different inclination angles, making the installation angle of the second recovery device 2 flexibly adjustable. The input and reversing mechanism 4 of this utility model has an extremely simple structure, using only three drive shafts and four gears to change the rotation direction of the drive sprocket 42, realizing the reversing operation. The structure is compact and has good operability and reliability.

[0078] In the description of this utility model, it should be noted that although in the specific embodiments, each mechanism in the grain recycling device disclosed in the accompanying drawings is set in the fixed position shown in the figure, the setting position of each device and mechanism, as well as the rotation direction of each transmission component and the rotation direction of the spiral blade, can be changed according to the design of the whole machine. As long as the cooperation of each mechanism can realize the concept of the dual-path return bin setting of this application, it falls within the protection scope of this application.

[0079] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0080] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. In the description of this utility model, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that the specific features, structures, materials, or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of this utility model.

Claims

1. A grain recycling device, characterized in that, include: The first recovery device (1), the second recovery device (2), the transmission mechanism (3), and the power input and reversing mechanism (4); The first recycling device (1) is horizontally arranged and includes a first grain collection box (11) and a first grain conveying auger (12); the first grain conveying auger (12) is arranged inside the first grain collection box (11), and the bottom of the first recycling device (1) is provided with a grain outlet; The second recycling device (2) is inclined and includes a second grain collection box (21), a second grain conveying auger (22), and a second grain discharge port (23); the second grain collection box (21) is provided with a second grain discharge port (23) at the end away from the first recycling device (1); the second grain conveying auger (22) is provided inside the second grain collection box (21); The transmission mechanism (3) includes a drive sprocket (32), a first grain conveying auger drive sprocket (33), a second grain conveying auger sprocket (34), and a chain (35); the drive sprocket (32), the first grain conveying auger drive sprocket (33), and the second grain conveying auger sprocket (34) are connected by the chain (35); the first grain conveying auger drive sprocket (33) is fixedly connected to the first grain conveying auger (12), and the second grain conveying auger sprocket (34) is connected by the second grain conveying auger (22); The power input and reversing mechanism (4) includes a power input shaft (41), a drive sprocket drive shaft (42), and a reversing shaft (43); one end of the drive sprocket drive shaft (42) is fixedly connected to the drive sprocket (32); a power input gear (411) is provided on the power input shaft (41), the power input gear (411) is sleeved on the power input shaft (41) and can move along the axial direction of the power input shaft (41); a drive sprocket drive gear I (421) and a drive sprocket drive gear II (422) are fixedly provided on the drive sprocket drive shaft (42); a reversing gear (431) is provided on the reversing shaft (43), and so on. The reversing gear (431) meshes with the driving sprocket drive gear II (422); when the power input gear (411) moves to a first predetermined position along the axial direction of the power input shaft (41), the power input gear (411) meshes with the driving sprocket drive gear I (421); when the power input gear (411) moves to a second predetermined position along the axial direction of the power input shaft (41), the power input gear (411) meshes with the reversing gear (431).

2. The grain recycling device according to claim 1, characterized in that, The transmission mechanism (3) further includes a second grain conveying auger drive gear (36), a second grain conveying auger driven gear (37), and a second grain conveying auger gear drive shaft (38). One end of the second grain conveying auger gear drive shaft (38) is fixedly connected to the second grain conveying auger sprocket (34), and the other end is fixedly connected to the second grain conveying auger drive gear (36). The second grain conveying auger driven gear (37) is fixedly connected to the second grain conveying auger (22). The second grain conveying auger drive gear (36) and the second grain conveying auger driven gear (37) mesh.

3. The grain recycling device according to claim 2, characterized in that, The second grain conveying auger drive gear (36) and the second grain conveying auger driven gear (37) are bevel gears.

4. The grain recycling device according to claim 1, characterized in that, A splined shaft section (412) is provided on the power input shaft (41), and a splined hole is provided in the center of the power input gear (411). The splined hole of the power input gear (411) is clearance-fitted with the splined shaft section (412). The power input gear (411) is sleeved on the splined shaft section (412) through the splined hole and can move on the splined shaft section (412) along the axial direction of the power input shaft (41).

5. The grain recycling device according to claim 1, characterized in that, One end of the second grain collection box (21) is connected to the first grain collection box (11).

6. The grain recycling device according to claim 1, characterized in that, The first recycling device (1) includes a first fan plate (15), which is disposed at one end of the first grain conveying auger (12) near the second recycling device (2) and is fixedly connected to the first grain conveying auger (12).

7. The grain recycling device according to claim 1, characterized in that, The first recycling device (1) includes a first grain guide cylinder (13), the top of the first grain guide cylinder (13) is connected to the grain outlet at the bottom of the first grain collection box (11), and the bottom of the first grain guide cylinder (13) is connected to the grain recycling box installed on the corn harvester.

8. The grain recycling device according to claim 1, characterized in that, The second recycling device (2) includes a second fan plate (25), which is disposed at the second grain outlet (23) and fixedly connected to the second grain conveying auger (22).

9. The grain recycling device according to claim 1, characterized in that, The power input and reversing mechanism (4) includes a reversing device (44), which includes a shift handle (441), a shift shaft (442), a shift fork sleeve (443), a shift fork (444), and a limit seat (445). The limiting seat (445) is provided with two limiting slots. The shift handle (441) can switch between the two limiting slots. The shift handle (441) is rotatably sleeved on the shift shaft (442). The shift handle (441) is axially limited on the shift shaft (442). The shift fork sleeve (443) is fixedly sleeved on the shift shaft (442). The shift fork (444) is fixedly provided on the shift fork sleeve (443). The power input gear (411) is provided with a limiting groove (4111) on one side of the axial direction. The shift fork (444) is accommodated in the limiting groove (4111). When the power input gear (411) rotates with the power input shaft (41), the shift fork (444) does not rotate with it.

10. The grain recycling device according to claim 9, characterized in that, Along the axial direction of the conversion shaft (442), the distance between the two limiting slots is consistent with the distance between the first predetermined position and the second predetermined position.

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