Corn harvester

Abstract

The present invention provides a corn harvester including: a power output mechanism located on the right side of the whole machine, a main transmission shaft, a transmission belt, and a tensioning wheel for tensioning the transmission belt; the power output mechanism is connected to the main transmission shaft through the transmission belt, and the tensioning wheel abuts against the transmission belt. The power output is installed on the right side of the whole machine to solve the problem of complex transmission of the whole machine. The engagement and separation of the rear working device is controlled by whether the transmission belt between the power output mechanism and the main transmission shaft is pressed or not. The transmission route of the whole machine is simple, the transmission is reliable, the probability of failure is reduced, the maintenance cost is reduced, the maintenance time is reduced, and the user's benefits are increased.

Description

Technical Field

[0001] The invention relates to the technical field of harvesting machinery, and in particular to a corn harvester. Background Art

[0002] With the continuous development of corn harvesting machinery and the change of people's thinking, the mechanized harvesting rate of corn is getting higher and higher. As a result, users' requirements for corn harvesters are getting higher and higher, not only requiring a high rate of ear stripping, less grain loss, and good field return effect, but also requiring fewer failures and comfortable driving.

[0003] Due to the differences in plot size, agronomic conditions and farmers' income levels in different regions, the configuration requirements for corn harvesters are also different. This requires targeted deployment of different configuration models in different regions to meet user needs.

[0004] The existing plate-type corn harvester engine working power output is located on the left side of the whole machine. The power output is friction plate type, and the power is directly transmitted to the ear picking platform, the field return machine and the working device at the rear through the power output. The power needs to be reversed before it is finally transmitted to the field return machine, the elevator, the front stem chopper and other components, and the transmission route is complicated. With the continuous improvement of engine power, the existing friction plate structure has a high power output failure rate; the power output is located on the left side of the whole machine, and the transmission of each working component requires the addition of a reversing gearbox, which increases the complexity of the transmission. The more complex the structure, the more corresponding failures there are. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a corn harvester in view of the deficiencies in the prior art.

[0006] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A corn harvester comprises: a power output mechanism located on the right side of the whole machine, a main transmission shaft, a transmission belt, and a tensioning wheel for tensioning the transmission belt; the power output mechanism is connected to the main transmission shaft through the transmission belt, and the tensioning wheel abuts against the transmission belt.

[0007] The beneficial effects of the present invention are: the power output is installed on the right side of the whole machine, which solves the problem of complex transmission of the whole machine. The engagement and separation of the rear working device are controlled by whether the transmission belt between the power output mechanism and the main transmission shaft is pressed or not. The transmission route of the whole machine is simple, the transmission is reliable, the probability of failure is reduced, the maintenance cost is reduced, the maintenance time is reduced, and the user's benefits are increased.

[0008] Furthermore, it also includes: a plate-type ear-picking platform, a rear working device, a field returner with different widths matching the plate-type ear-picking platform, a travel drive mechanism, an engine, an air-conditioning compressor and a compressor bracket, the main transmission shaft is respectively connected to the plate-type ear-picking platform, the rear working device and the field returner, the air-conditioning compressor is installed on the compressor bracket, the air-conditioning compressor is connected to the power output mechanism, the engine is connected to the travel drive mechanism, the travel drive mechanism is a mechanical drive mechanism or a hydrostatic drive mechanism, and the field returner is movably mounted on the chassis frame through a block.

[0009] The beneficial effect of adopting the above further scheme is that different widths of returners can be installed according to different row spacings, the transmission surface positions and mounting points between returners of different widths are unified, the side wall on the non-transmission side can be moved left and right to realize the change of returners of different widths, and the interface with the whole machine does not change. Equipped with plate-type ear picking platforms with different row spacings and returners of corresponding widths, the returners can be adjusted left and right. A block is installed at the connection between the returner and the chassis frame. The left and right position of the returner can be adjusted by adjusting the left and right installation position of the block. At the same time, the position of the returner drive pulley on the main transmission shaft can be adjusted left and right to meet the requirement of transmission surface alignment. It can solve the problem that the returner cannot return the field due to the leakage of stems on the left or right side caused by slight changes in row spacing.

[0010] Furthermore, the rear working device includes: a rear working device main shaft, an elevator transition double sprocket, an exhaust fan, a grain cleaning fan, a fruit ear processing mechanism and a bract chopper, the rear working device main shaft is connected to the main transmission shaft, the rear working device main shaft is respectively connected to the elevator transition double sprocket, the exhaust fan, the grain cleaning fan, the fruit ear processing mechanism and the bract chopper, and the engine is a four-cylinder or six-cylinder engine.

[0011] The beneficial effect of adopting the above further solution is that the main working parts of the rear working device are directly driven by the main shaft of the rear working device, the number of transmission stages is small, and the transmission is reliable.

[0012] Furthermore, the rear working device also includes: an elevator, a debris removal device and a debris suction fan, the debris removal fan is provided with a debris removal fan shaft, the elevator transition double sprocket is installed at one end of the debris removal fan shaft, the elevator is provided with an elevator driving shaft, the elevator transition double sprocket is connected to one end of the elevator driving shaft, the other end of the elevator driving shaft is connected to the debris removal device, and the other end of the debris removal fan shaft is connected to the debris suction fan.

[0013] The beneficial effect of adopting the above further scheme is that the elevator transition double sprocket is assembled on the impurity exhaust fan shaft with a bearing, and the impurity exhaust fan shaft only plays a supporting role. This structural design can reduce a separate supporting shaft, which is more conducive to space layout. The elevator transition double sprocket then transmits power to the elevator driving shaft, driving the elevator chain rake to move to realize the fruit ear transportation. The left side of the elevator driving shaft transmits power to the impurity exhaust device. The left side of the impurity exhaust fan shaft transmits power to the impurity suction fan, and the impurity exhaust fan shaft also plays the role of a transmission shaft.

[0014] Furthermore, the ear processing mechanism is provided with a peeling machine with an adjustable number of flat rollers and grooved rollers, a reversing seat, a husk conveying auger, and a pressure feeder. The reversing seat is provided with a reversing seat driving shaft and a reversing seat output shaft. The number of peeling machines ranges from 3 to 6 groups. The peeling machine is provided with a peeling machine main transmission shaft, and the peeling machine main transmission shaft is respectively connected to the main shaft of the rear working device and the reversing seat driving shaft, the reversing seat driving shaft is connected to the husk conveying auger, the reversing seat driving shaft is connected to the reversing seat output shaft, and the reversing seat output shaft is connected to the pressure feeder.

[0015] The beneficial effect of adopting the above further scheme is that the main drive shaft of the peeling machine is powered by the main shaft of the rear working device, and the peeling roller is driven to rotate through gears. The left side of the main drive shaft of the peeling machine inputs power to the reversing seat driving shaft, and at the same time, the reversing seat driving shaft inputs power to the two bract agitator shafts. The reversing seat input shaft drives the reversing seat output shaft through gears, and the output shaft transmits power to the pressure feeder. The machine model can be equipped with 3-6 groups of peeling machines, and the ear processing mechanism of 3-6 groups of peeling machines can be switched as a whole, which is consistent with the installation interface of the chassis frame, and can also be replaced between different models.

[0016] Furthermore, a grain recovery device is provided below the ear processing mechanism.

[0017] The beneficial effect of adopting the above further scheme is that the grain recovery device can realize the recovery of grains dropped in the bracts and on the front side of the ear box.

[0018] Furthermore, the grain recovery device is a pull-out type grain recovery trough, a mechanical grain unloading mechanism or a dual-purpose grain lifting and recovery mechanism.

[0019] The beneficial effect of adopting the above further scheme is that the machine model can be equipped with grain recovery devices of different structures, thereby improving applicability and versatility, and realizing the recovery of grains dropped from the bracts and the front side of the ear box.

[0020] Furthermore, the plate-type ear picking platform includes: a plate-type ear picking platform hanging shaft, an ear conveying auger, a front stem chopper and at least three sets of ear picking frames; the main transmission shaft is connected to the plate-type ear picking platform hanging shaft, and the plate-type ear picking platform hanging shaft is respectively connected to the front stem chopper, the ear conveying auger and the ear picking frame.

[0021] The beneficial effect of adopting the above further scheme is that the main drive shaft transmits power to the plate-type ear-picking platform attachment shaft, and the plate-type ear-picking platform attachment shaft is supported by two bearings, and there is a sprocket on the outside of the two bearings to transmit power to the upper left intermediate shaft or the upper right intermediate shaft on the front side. The upper left intermediate shaft or the upper right intermediate shaft transmits power to the front stem chopper on the left side or the front stem chopper on the right side, respectively, and transmits power to the lower left intermediate shaft or the lower right intermediate shaft after gear reversing. It can be equipped with four-cylinder or six-cylinder engines, mechanical or hydrostatic drive gearboxes, 3-6 groups of peeling machines, grain recovery troughs or mechanical agitators to unload grains or dual-purpose grain lifting, fixed impurity removal or floating impurity removal and other different configurations to improve versatility and meet the needs of different regions and different users. Customized production is realized on a point-to-point basis, and fast replacement of different configurations can be achieved.

[0022] Furthermore, the plate-type ear picking platform also includes: an upper left intermediate shaft, a lower left intermediate shaft, an upper right intermediate shaft, a lower right intermediate shaft, and a reversing gear. The two sides of the plate-type ear picking platform hanging shaft are respectively connected to the upper left intermediate shaft and the upper right intermediate shaft. The front stalk chopper is divided into a front stalk chopper located on the left and a front stalk chopper located on the right. The upper left intermediate shaft and the upper right intermediate shaft are respectively connected to the front stalk chopper located on the left and the front stalk chopper located on the right. The upper left intermediate shaft and the upper right intermediate shaft are respectively connected to the lower left intermediate shaft and the lower right intermediate shaft through the reversing gear. The ear picking frame includes an ear picking gear box. The lower left intermediate shaft and the lower right intermediate shaft are respectively connected to the ear picking gear box. The lower left intermediate shaft or the lower right intermediate shaft is connected to the ear conveying auger.

[0023] The beneficial effects of adopting the above further scheme are: the structural design of the plate-type ear-picking platform simplifies the structure, reduces the cost, improves the transmission efficiency, and facilitates the installation and maintenance of the plate-type ear-picking platform.

[0024] Furthermore, a pad is detachably provided between two adjacent groups of the ear picking frames, a transition coupling sprocket, a spline sleeve or a universal joint is detachably provided between two adjacent groups of the ear picking gear boxes, and the ear picking frames also include: an ear picking bracket, an ear picking plate, a grain-pulling chain, and a pair of stem-pulling rollers. The grain-pulling chain and a pair of stem-pulling rollers are rotatably mounted on the ear picking bracket, the ear picking plate is movably mounted on the ear picking bracket, the pair of stem-pulling rollers rotate towards each other and are located below the ear picking plate, and the pair of stem-pulling rollers and the grain-pulling chain are respectively connected to the ear picking gear box.

[0025] The beneficial effect of adopting the above further scheme is that the machine model can be equipped with plate-type ear-picking platforms with different row spacings, and the ear-picking frames are common between the plate-type ear-picking platforms with different row spacings. The adjustment of different row spacings can be achieved by replacing the pads of different thicknesses between the two groups of ear-picking frames or not installing the pads, and replacing the transition coupling sprockets of different widths between the two ear-picking gear boxes or not installing them (that is, the sprockets on the two ear-picking gear boxes are directly connected). Plate-type ear-picking platforms with different row spacings can be selected, and the inclination angle of the plate-type ear-picking platform is matched differently according to whether there is a front chopper or not.

[0026] Advantages of additional aspects of the present invention will be given in part in the following description, and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic structural diagram of a power output mechanism provided in an embodiment of the present invention.

[0028] Figure 2 A schematic structural diagram of a post-working device provided in an embodiment of the present invention.

[0029] Figure 3 A schematic diagram of the transmission structure of an elevator provided in an embodiment of the present invention.

[0030] Figure 4 A schematic diagram of the transmission structure of the impurity suction fan provided in an embodiment of the present invention.

[0031] Figure 5 A schematic diagram of the structure of a fruit ear processing mechanism provided in an embodiment of the present invention.

[0032] Figure 6 This is one of the structural schematic diagrams of the plate-type ear-picking platform provided in an embodiment of the present invention.

[0033] Figure 7 The present invention provides a second schematic structural diagram of a plate-type ear-picking platform according to an embodiment of the present invention.

[0034] Figure 8 A transmission schematic diagram of a compressor provided in an embodiment of the present invention.

[0035] Fig. 9A schematic structural diagram of an ear picking frame provided in an embodiment of the present invention.

[0036] Fig.10 A schematic structural diagram of a transition coupling sprocket provided in an embodiment of the present invention.

[0037] Fig.11A This is one of the structural schematic diagrams of the field return machine provided in an embodiment of the present invention.

[0038] Fig. 11B The second structural schematic diagram of the field return machine provided in the embodiment of the present invention.

[0039] Fig.12 The third structural schematic diagram of the field return machine provided in the embodiment of the present invention.

[0040] Fig.13 The fourth structural schematic diagram of the field return machine provided in an embodiment of the present invention.

[0041] Fig.14 This is one of the structural schematic diagrams of the peeling machine provided in an embodiment of the present invention.

[0042] Fig.15 The second structural schematic diagram of the peeling machine provided in the embodiment of the present invention.

[0043] Fig.16 This is one of the structural schematic diagrams of the pull-out type grain recovery trough provided in an embodiment of the present invention.

[0044] Fig.17 This is a second schematic diagram of the structure of the pull-out type grain recovery trough provided in an embodiment of the present invention.

[0045] Fig.18 A schematic structural diagram of a mechanical grain unloading mechanism provided in an embodiment of the present invention.

[0046] Fig.19 This is one of the structural schematic diagrams of the dual-purpose grain lifting and recovery mechanism provided in an embodiment of the present invention.

[0047] Fig. 20 The second structural schematic diagram of the dual-purpose grain lifting and recovery mechanism provided in the embodiment of the present invention.

[0048] Fig.21 A schematic structural diagram of a corn harvester provided in an embodiment of the present invention.

[0049] Fig. 22 The third structural schematic diagram of the plate-type ear-picking platform provided in the embodiment of the present invention.

[0050] Explanation of the accompanying figures: 1. Power output mechanism; 2. Main transmission shaft; 3. Transmission belt; 4. Tensioning wheel; 5. Plate-type ear-picking platform; 6. Rear working device; 7. Returning machine; 8. Main shaft of the rear working device; 9. Transition double sprocket of the elevator; 10. Trash removal fan; 11. Grain cleaning fan; 12. Ear processing mechanism; 13. Husk chopper; 14. Elevator; 15. Trash removal device; 16. Trash suction fan; 17. The impurity removal fan shaft; 18, the elevator driving shaft; 19, the peeling machine; 20, the reversing seat; 21, the husk conveying auger; 22, the pressure conveyor; 23, the reversing seat driving shaft; 24, the reversing seat output shaft; 25, the peeling machine main transmission shaft; 26, the grain recovery device; 27, the pull-out grain recovery trough; 28, the mechanical grain unloading mechanism; 29, the dual-purpose grain lifting and recovery mechanism; 30, the plate-type ear picking platform hanging shaft; 31, the ear Conveying auger; 32, front stem chopper; 33, ear picking frame; 34, cushion block; 35, ear picking gear box; 36, transition coupling sprocket; 37, stopper; 38, chassis frame; 39, straw chain; 40-stem pulling roller; 41, upper left intermediate shaft; 42, plate-type ear picking platform input pulley; 43, upper right intermediate shaft; 44, lower left intermediate shaft; 45, reversing gear; 46, grain recovery shell; 47, mechanical grain unloading The invention comprises a grain conveying auger of the mechanism; 48. a clutch transmission device; 49. a power output pulley; 50. an adjusting device; 51. a grain recovery box; 52. a grain lifting device; 53. a grain conveying auger of the dual-purpose grain lifting and recovery mechanism; 54. a grain collecting shell; 55. a fruit ear box; 56. a movable plate; 57. an engine; 58. an air-conditioning compressor; 59. a compressor bracket; 60. an ear picking bracket; 61. an ear picking plate. DETAILED DESCRIPTION

[0051] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0052] like Figures 1 to 22 As shown, the present invention provides a corn harvester, comprising: a power output mechanism 1 located on the right side of the whole machine, a main transmission shaft 2, a transmission belt 3, and a tensioning wheel 4 for tensioning the transmission belt 3; the power output mechanism 1 is connected to the main transmission shaft 2 through the transmission belt 3, and the tensioning wheel 4 abuts against the transmission belt 3.

[0053] The beneficial effects of the present invention are: the power output is installed on the right side of the whole machine, which solves the problem of complex transmission of the whole machine. The engagement and separation of the rear working device are controlled by whether the transmission belt between the power output mechanism and the main transmission shaft is pressed or not. The transmission route of the whole machine is simple, the transmission is reliable, the probability of failure is reduced, the maintenance cost is reduced, the maintenance time is reduced, and the user's benefits are increased.

[0054] The whole machine here is a harvester with its own power. The corn harvester provided in the embodiment of the present invention is suitable for a plate-type corn harvester, and its plate-type ear picking platform is a plate-type structure. The engine 57 is connected to the power output mechanism 1. The whole machine is based on the technology of the existing plate-type corn harvester, and the power output of the engine on the right side solves the problem of complex transmission of the whole machine. Each component is installed on the frame of the harvester.

[0055] Figures 1 to 22 Due to the large size of some drawings, a part of the structure is cut out to facilitate the display of specific related structures. The cross-section of the cut structure is indicated by a dotted line, and the cut part of the structure is not a whole or complete structure.

[0056] The whole machine is based on the existing plate-type corn harvester, and the power output is installed on the right side of the engine to solve the problem of complex transmission of the whole machine. Plate-type ear-picking platforms with different row spacings can be selected, and the inclination angle of the plate-type ear-picking platform is matched differently according to whether there is a front chopper; plate-type ear-picking platforms with different row spacings are matched with corresponding width return machines, and the return machine can be adjusted left and right; at the same time, it can be equipped with four-cylinder / six-cylinder engines, mechanical / hydrostatic drive gearboxes, 3-6 groups of peeling machines, grain recovery troughs / mechanical auger unloading grains / dual-purpose grain lifting, fixed impurity removal / floating impurity removal and other different configurations to improve versatility and meet the needs of different regions and different users. Customized production is realized, and fast replacement of different configurations can be achieved.

[0057] The structural components of the whole machine mainly include plate-type ear picking platform, elevator, debris removal device, debris removal fan, debris suction fan, peeling machine, press conveyor, bract conveying auger, grain debris removal fan, field return machine, bract chopper, front stem chopper, engine, power output mechanism, continuously variable speed transmission, gearbox, etc.

[0058] The transmission route of the whole machine is optimized, and the power transmission is completed with the minimum transmission level. Multiple combinations of different configurations of the same model are realized, and different models are interchangeable. The new transmission route layout of the whole machine has a simple structure and reliable transmission. The field return machine can be adjusted left and right, and the transition sprocket of the elevator is supported by the shaft of the exhaust fan, which is an innovative structure. Grain recovery devices with different structures can be freely selected to meet the needs of different users.

[0059] 1. The transmission layout of the whole machine is simple and the transmission is reliable

[0060] (1) Power output transmission route layout

[0061] The engine power is transmitted downward to the main transmission shaft through the power output mechanism, and then transmitted to the plate-type ear picking platform, the rear working device and the field return machine by the main transmission shaft. The engagement and separation of the rear working device is controlled by whether the transmission belt between the power output mechanism and the main transmission shaft is tight or not.

[0062] (2) Rear working device spindle transmission layout

[0063] The main shaft of the rear working device is driven by the main transmission shaft, and from left to right, it transmits the double sprocket of the elevator transition, the impurity exhaust fan, the grain impurity cleaning fan, the peeling machine, and the bract chopper. The main working parts are directly driven by the main shaft of the rear working device, with fewer transmission stages and reliable transmission.

[0064] (3) Transmission layout of elevator, impurity removal device and impurity suction fan

[0065] The main shaft of the rear working device transmits power to the elevator transition double sprocket. The elevator transition double sprocket is assembled on the impurity exhaust fan shaft with bearings. The impurity exhaust fan shaft only plays a supporting role. This structure can reduce a separate supporting shaft and is more conducive to space layout. The elevator transition double sprocket then transmits power to the elevator driving shaft, driving the elevator chain rake to realize the fruit bunch transportation. The left side of the elevator driving shaft transmits power to the impurity exhaust device. The left side of the impurity exhaust fan shaft transmits power to the impurity suction fan, and the impurity exhaust fan shaft also plays the role of a transmission shaft.

[0066] (4) Transmission layout of the ear processing mechanism

[0067] The main drive shaft of the peeling machine receives power from the main shaft of the rear working device, which drives the peeling roller to rotate through gears. The left side of the main drive shaft of the peeling machine receives power from the reversing seat driving shaft, and at the same time, the reversing seat driving shaft receives power from the two bract agitator shafts. The reversing seat input shaft drives the reversing seat output shaft through gears, and the output shaft transmits power to the pressure feeder.

[0068] (5) Transmission layout of plate-type ear picking platform

[0069] The plate-type ear-picking platform mainly includes a plate-type ear-picking platform frame, an ear-picking frame and a straw divider. The plate-type ear-picking platform frame is fixed with a plate-type ear-picking platform connecting shaft 30, an upper left intermediate shaft 41, a lower left intermediate shaft 44, an upper right intermediate shaft 43, a lower right intermediate shaft, an ear conveying auger 31, a front stem chopper 32 and an ear-picking frame 33. The ear-picking frame 33 is fixed with an ear-picking gear box 35, a stem pulling roller 40, an ear-picking plate, a straw chain 39, etc. The main transmission shaft transmits power to the plate-type ear-picking platform connecting shaft 30, which is supported by two bearings, and a sprocket is provided on the outer side of the two bearings to transmit power to the upper left intermediate shaft 41 and the upper right intermediate shaft 43 on the front side. The upper left intermediate shaft 41 and the upper right intermediate shaft 43 transmit power to the front stem chopper on the left and the front stem chopper on the right, respectively, and transmit the power to the lower left intermediate shaft 44 and the lower right intermediate shaft after reversing through the reversing gear 45. The ear picking gear box is divided into two groups, which are driven by the lower left intermediate shaft 44 and the lower right intermediate shaft respectively, and the ear feeding auger 31 is driven by the lower left intermediate shaft 44 or the lower right intermediate shaft on one side. The plate-type ear picking platform hanging shaft 30 is connected to the main transmission shaft 2 through the plate-type ear picking platform input pulley 42.

[0070] (6) Air conditioning compressor transmission layout

[0071] The model can be equipped with air conditioning, and an air conditioning interface is reserved. The air conditioning compressor 58 is installed on the front side of the power output mechanism 1, and a pulley groove for driving the air conditioning compressor 58 is reserved on the pulley of the power output mechanism. The air conditioning compressor 58 is installed on the compressor bracket 59, and the compressor bracket 59 is installed on the whole machine bracket. The air conditioning compressor 58 is connected to the power output mechanism 1.

[0072] 2. Position adjustable

[0073] (1) Design of ear picking frame structure

[0074] The machine model can be equipped with plate-type ear-picking platforms with different row spacings, and the ear-picking frames are common among the plate-type ear-picking platforms with different row spacings. The plate-type ear-picking platform 5 is defined by the structural form of the ear-picking frame 33, including the stem-pulling rollers 62 rotating in opposite directions and the ear-picking plate 61 with adjustable upper clearance. The adjustment of different row spacings can be achieved by replacing the pads of different thicknesses between the two groups of ear-picking frames or not installing the pads, and replacing the transition coupling sprockets of different widths between the two ear-picking gear boxes or not installing them (the sprockets on the two ear-picking gear boxes are directly connected).

[0075] Different widths of return field machines can be installed according to different row spacings. The transmission surface positions and hanging points of return field machines of different widths are unified. The side wall on the non-transmission side can be moved left and right to realize the change of return field machines of different widths, and the interface with the whole machine remains unchanged.

[0076] Fig.11A and Fig. 11B The double-headed arrow in the figure represents the direction of the width expansion of the field return machine. Fig.11A In order to configure a shorter width return machine structure, Fig. 11B In order to configure a longer width return machine structure, Fig. 11B The width of the return machine is greater than Fig.11A The width of the field return machine.

[0077] (2) The left and right position of the field return machine can be adjusted

[0078] A stopper is installed at the connection between the field return machine and the chassis frame. The left and right positions of the field return machine can be adjusted by adjusting the left and right installation positions of the stopper. At the same time, the position of the field return machine drive pulley on the main transmission shaft can be adjusted left and right to meet the requirement of the transmission surface being aligned. This solution can solve the problem that the field return machine cannot return the field due to the leakage of stems on the left or right side caused by a slight change in row spacing. Fig.12 and Fig.13 The double-headed arrow in the figure indicates that the position of the drive pulley of the field return machine on the main drive shaft can be adjusted left and right.

[0079] (3) 3-6 groups of peeling machines

[0080] The machine model can be equipped with 3-6 sets of peeling machines, and the ear processing mechanism of the 3-6 sets of peeling machines can be switched as a whole, which is consistent with the installation interface of the chassis frame, and can also be replaced between different models. The ear processing mechanism includes a peeling machine, a pressure feeder, a peeling machine chassis, a husk conveying auger, a rear working device spindle, etc.

[0081] (4) Different grain recovery devices can be replaced

[0082] The machine model can be equipped with a grain recovery device of different structures, including a pull-out grain recovery trough, a mechanical grain unloading device or a dual-purpose grain lifting recovery device. The grain recovery device can realize the recovery of grains dropped from the bracts and the front side of the ear box.

[0083] The pull-out type grain recovery trough can realize temporary storage of recovered grains. When the grains need to be unloaded, the recovery trough can be pulled out to facilitate the unloading of the grains.

[0084] The mechanical seed unloading mechanism 28 comprises a seed recovery shell 46, a seed conveying auger 47 of the mechanical seed unloading mechanism, and a clutch transmission device 48, wherein the clutch transmission device is connected to a power output pulley 49. When the seed needs to be unloaded, the clutch transmission device is combined to drive the seed conveying auger to rotate, and the seed in the seed recovery shell is unloaded. The power output pulley is connected to the main transmission shaft.

[0085] The dual-purpose grain lifting and recovery mechanism 29 includes a grain collection shell 54, a grain conveying auger 53 of the dual-purpose grain lifting and recovery mechanism, a grain lifting device 52, a grain recovery box 51, and an adjustment device 50. The grain collection shell collects the fallen grains to the bottom grain conveying auger position, the auger conveying auger conveys the grains to the bottom of the grain lifting device, the grain lifting device lifts the grains to a high place, and there is a movable plate 56 inside the adjustment device for controlling the grains lifted to a high place to enter the grain recovery box or the ear box 55. When the movable plate 56 is lifted, the grains fall into the grain recovery box, and when the movable plate 56 falls, the grains slide along the movable plate 56 into the ear box 55. It can meet the user's requirements on whether the grains need to be recycled separately.

[0086] When harvesting wide-row-spacing corn, swap the left and right tires and adjust them to a wide wheelbase. Adjust the field return machine to the left and widen the width of the plate-type ear picking platform to achieve the harvesting of wide-row-spacing corn and the full width of the stalks.

[0087] Corn harvesters meet the needs of harvesting ears, and realize functions such as picking ears, peeling, conveying ears, crushing stems and returning them to the field, crushing husks and returning them to the field, and recovering entrained grains. The whole machine has a simple transmission route and reliable transmission, which reduces the probability of failure, reduces maintenance costs, reduces maintenance time, and increases user benefits. The plate-type ear picking platform, peeling machine, field return machine, grain recovery device, power, and travel can all be matched differently according to user needs. For enterprises, one model can achieve more configuration options, form a series, and reduce development and manufacturing costs. For users, with more configuration options, they can choose a configuration that better suits their needs.

[0088] (i) The connection method between the picking gear boxes is not limited to the sprocket type coupling, and a spline sleeve type, a universal joint type, etc. can also be used. Different row spacings can be achieved by changing the length of the spline sleeve or the universal joint.

[0089] (ii) It can also be equipped with a four-cylinder / six-cylinder engine, a fixed trash removal roller / floating trash removal roller above the elevator, a mechanical drive / hydrostatic drive, and a front stem chopper as an option.

[0090] (i) The transmission route layout of the whole machine. (ii) The structure of the elevator transition double sprocket supported by the exhaust fan shaft. (iii) The structure layout of the whole machine. (iv) The structure of the adjustment device in the dual-purpose grain lifting and recovery device.

[0091] like Figures 1 to 22 As shown, it further includes: a plate-type ear-picking platform 5, a rear working device 6, a field returner 7 with different widths matching the plate-type ear-picking platform, a travel drive mechanism, an engine 57, an air-conditioning compressor 58 and a compressor bracket 59, the main transmission shaft 2 is respectively connected to the plate-type ear-picking platform 5, the rear working device 6 and the field returner 7, the air-conditioning compressor 58 is installed on the compressor bracket 59, the air-conditioning compressor 58 is connected to the power output mechanism 1, the engine 57 is connected to the travel drive mechanism, the travel drive mechanism is a mechanical drive mechanism or a hydrostatic drive mechanism, and the field returner 7 is movably mounted on the chassis frame 38 through a block 37.

[0092] Among them, the plate-type ear picking platform is matched with a field returner of different widths, and the width of the field returner is adjustable.

[0093] The beneficial effect of adopting the above further scheme is that different widths of returners can be installed according to different row spacings, the transmission surface positions and mounting points between returners of different widths are unified, the side wall on the non-transmission side can be moved left and right to realize the change of returners of different widths, and the interface with the whole machine does not change. Equipped with plate-type ear picking platforms with different row spacings and returners of corresponding widths, the returners can be adjusted left and right. A block is installed at the connection between the returner and the chassis frame. The left and right position of the returner can be adjusted by adjusting the left and right installation position of the block. At the same time, the position of the returner drive pulley on the main transmission shaft can be adjusted left and right to meet the requirement of transmission surface alignment. It can solve the problem that the returner cannot return the field due to the leakage of stems on the left or right side caused by slight changes in row spacing.

[0094] The stopper is slidably and lockably mounted on the chassis frame.

[0095] like Figures 1 to 22 As shown, further, the rear working device 6 includes: a rear working device main shaft 8, an elevator transition double sprocket 9, an exhaust fan 10, a grain cleaning fan 11, a cob processing mechanism 12 and a bract chopper 13, the rear working device main shaft 8 is connected to the main transmission shaft 2, the rear working device main shaft 8 is respectively connected to the elevator transition double sprocket 9, the exhaust fan 10, the grain cleaning fan 11, the cob processing mechanism 12 and the bract chopper 13, and the engine 57 is a four-cylinder or six-cylinder engine.

[0096] The beneficial effect of adopting the above further solution is that the main working parts of the rear working device are directly driven by the main shaft of the rear working device, the number of transmission stages is small, and the transmission is reliable.

[0097] like Figures 1 to 22 As shown, further, the rear working device 6 also includes: an elevator 14, a debris removal device 15 and a debris suction fan 16, the debris removal fan 10 is provided with a debris removal fan shaft 17, the elevator transition double sprocket 9 is installed at one end of the debris removal fan shaft 17, the elevator 14 is provided with an elevator driving shaft 18, the elevator transition double sprocket 9 is connected to one end of the elevator driving shaft 18, the other end of the elevator driving shaft 18 is connected to the debris removal device 15, and the other end of the debris removal fan shaft 17 is connected to the debris suction fan 16.

[0098] Among them, the engine power can be equipped with four cylinders or six cylinders.

[0099] The beneficial effect of adopting the above further scheme is that the elevator transition double sprocket is assembled on the impurity exhaust fan shaft with a bearing, and the impurity exhaust fan shaft only plays a supporting role. This structural design can reduce a separate supporting shaft, which is more conducive to space layout. The elevator transition double sprocket then transmits power to the elevator driving shaft, driving the elevator chain rake to move to realize the fruit ear transportation. The left side of the elevator driving shaft transmits power to the impurity exhaust device. The left side of the impurity exhaust fan shaft transmits power to the impurity suction fan, and the impurity exhaust fan shaft also plays the role of a transmission shaft.

[0100] like Figures 1 to 22 As shown, further, the ear processing mechanism 12 is provided with a peeling machine 19 with an adjustable number of flat rollers and grooved rollers, a reversing seat 20, a husk conveying augers 21, and a press 22. The reversing seat 20 is provided with a reversing seat driving shaft 23 and a reversing seat output shaft 24. The number of peeling machines 19 ranges from 3 groups to 6 groups. The peeling machine 19 is provided with a peeling machine main transmission shaft 25. The peeling machine main transmission shaft 25 is respectively connected to the rear working device main shaft 8 and the reversing seat driving shaft 23. The reversing seat driving shaft 23 is connected to the husk conveying augers 21. The reversing seat driving shaft 23 is connected to the reversing seat output shaft 24. The reversing seat output shaft 24 is connected to the press 22.

[0101] Among them, 3-6 groups of peeling machines can be configured according to actual needs, and both flat rollers and grooved rollers can be configured.

[0102] The beneficial effect of adopting the above further scheme is that the main drive shaft of the peeling machine is powered by the main shaft of the rear working device, and the peeling roller is driven to rotate through gears. The left side of the main drive shaft of the peeling machine inputs power to the reversing seat driving shaft, and at the same time, the reversing seat driving shaft inputs power to the two bract agitator shafts. The reversing seat input shaft drives the reversing seat output shaft through gears, and the output shaft transmits power to the pressure feeder. The machine model can be equipped with 3-6 peeling machines, and the ear processing mechanism of 3-6 sets of peeling machines can be switched as a whole, which is consistent with the installation interface of the chassis frame, and can also be replaced between different models.

[0103] like Figures 1 to 22 As shown, further, a grain recovery device 26 is provided below the ear processing mechanism 12 .

[0104] The beneficial effect of adopting the above further scheme is that the grain recovery device can realize the recovery of grains dropped in the bracts and on the front side of the ear box.

[0105] like Figures 1 to 22 As shown, further, the grain recovery device 26 is a pull-out type grain recovery trough 27, a mechanical grain unloading mechanism 28 or a dual-purpose grain lifting and recovery mechanism 29.

[0106] The beneficial effect of adopting the above further scheme is that the machine model can be equipped with grain recovery devices of different structures, thereby improving applicability and versatility, and realizing the recovery of grains dropped from the bracts and the front side of the ear box.

[0107] like Figures 1 to 22 As shown, further, the plate-type ear picking platform 5 includes: a plate-type ear picking platform hanging shaft 30, an ear conveying auger 31, a front stem chopper 32 and at least three groups of ear picking frames 33; the main transmission shaft 2 is connected to the plate-type ear picking platform hanging shaft 30, and the plate-type ear picking platform hanging shaft 30 is respectively connected to the front stem chopper 32, the ear conveying auger 31 and the ear picking frame 33.

[0108] The ear picking racks 33 may be provided in different numbers to form corn harvesters with different numbers of rows.

[0109] The beneficial effect of adopting the above further scheme is that the main drive shaft transmits power to the plate-type ear-picking platform attachment shaft, and the plate-type ear-picking platform attachment shaft is supported by two bearings, and there is a sprocket on the outside of the two bearings to transmit power to the upper left intermediate shaft or the upper right intermediate shaft on the front side. The upper left intermediate shaft or the upper right intermediate shaft transmits power to the front stem chopper on the left side or the front stem chopper on the right side respectively, and transmits power to the lower left intermediate shaft or the lower right intermediate shaft after reversing through the reversing gear. It can be equipped with four-cylinder or six-cylinder engines, mechanical or hydrostatic drive gearboxes, 3-6 groups of peeling machines, grain recovery troughs or mechanical agitators to unload grains or dual-purpose grain lifting, fixed impurity removal or floating impurity removal and other different configurations to improve applicability and meet the needs of different regions and different users. Customized production is realized on a point-to-point basis, and fast replacement of different configurations can be achieved.

[0110] like Figures 1 to 22 As shown further, the plate-type ear-picking platform 5 also includes: an upper left intermediate shaft 41, a lower left intermediate shaft 44, an upper right intermediate shaft 43, a lower right intermediate shaft, and a reversing gear 45. The two sides of the plate-type ear-picking platform hanging shaft 30 are respectively connected to the upper left intermediate shaft 41 and the upper right intermediate shaft 43. The front stem chopper 32 is divided into a front stem chopper located on the left and a front stem chopper located on the right. The upper left intermediate shaft 41 and the upper right intermediate shaft 43 are respectively connected to the upper left intermediate shaft 41 and the upper right intermediate shaft 43. The front stem chopper on the left side is connected with the front stem chopper on the right side, the upper left intermediate shaft 41 and the upper right intermediate shaft 43 are respectively connected with the lower left intermediate shaft 44 and the lower right intermediate shaft through the reversing gear 45, the ear picking frame 33 includes an ear picking gear box 35, the lower left intermediate shaft 44 and the lower right intermediate shaft are respectively connected with the ear picking gear box 35, and the lower left intermediate shaft 44 or the lower right intermediate shaft is connected to the ear conveying auger 31.

[0111] The beneficial effects of adopting the above further scheme are: the structural design of the plate-type ear-picking platform simplifies the structure, reduces the cost, improves the transmission efficiency, and facilitates the installation and maintenance of the plate-type ear-picking platform.

[0112] like Figures 1 to 22 As shown, further, a spacer block 34 is detachably provided between two adjacent groups of the ear picking frames 33, a transition coupling sprocket 36, a spline sleeve or a universal joint is detachably provided between two adjacent groups of the ear picking gear boxes 35, and the ear picking frames 33 also include: an ear picking bracket 60, an ear picking plate 61, a rice-pulling chain 39, and a pair of stem pulling rollers 40. The rice-pulling chain 39 and a pair of stem pulling rollers 40 are rotatably mounted on the ear picking bracket 60, the ear picking plate 61 is movably mounted on the ear picking bracket 60, the pair of stem pulling rollers 40 rotate towards each other and are located below the ear picking plate 61, and the pair of stem pulling rollers 40 and the rice-pulling chain 39 are respectively connected to the ear picking gear box 35.

[0113] The beneficial effect of adopting the above further scheme is that the machine model can be equipped with plate-type ear-picking platforms with different row spacings, and the ear-picking frames are common between the plate-type ear-picking platforms with different row spacings. The adjustment of different row spacings can be achieved by replacing the pads of different thicknesses between the two groups of ear-picking frames or not installing the pads, and replacing the transition coupling sprockets of different widths between the two ear-picking gear boxes or not installing them (that is, the sprockets on the two ear-picking gear boxes are directly connected). Plate-type ear-picking platforms with different row spacings can be selected, and the inclination angle of the plate-type ear-picking platform is matched differently according to whether there is a front chopper or not.

[0114] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A corn harvester, characterized in that: include: The machine comprises a power output mechanism (1), a main transmission shaft (2), a transmission belt (3), and a tensioning wheel (4) for tensioning the transmission belt (3), which are located on the right side of the machine; the power output mechanism (1) is connected to the main transmission shaft (2) via the transmission belt (3), and the tensioning wheel (4) is in contact with the transmission belt (3); the machine also comprises: a plate-type ear-picking platform (5), a rear working device (6), a field return machine (7) with different widths for matching the plate-type ear-picking platform, a travel drive mechanism, an engine (57), an air-conditioning compressor (58), and a compressor support The chassis frame (59) is provided with a main transmission shaft (2) which is respectively connected to the plate-type ear-picking platform (5), the rear working device (6) and the field return machine (7); the air-conditioning compressor (58) is installed on the compressor bracket (59); the air-conditioning compressor (58) is connected to the power output mechanism (1); the engine (57) is connected to the travel drive mechanism; the travel drive mechanism is a mechanical drive mechanism or a hydrostatic drive mechanism; the field return machine (7) is movably installed on the chassis frame (38) through a stopper (37).

2. A corn harvester according to claim 1, characterized in that: The rear working device (6) comprises: a rear working device main shaft (8), an elevator transition double sprocket (9), an exhaust fan (10), a grain cleaning fan (11), a cob processing mechanism (12) and a bract chopper (13); the rear working device main shaft (8) is connected to the main transmission shaft (2); the rear working device main shaft (8) is respectively connected to the elevator transition double sprocket (9), the exhaust fan (10), the grain cleaning fan (11), the cob processing mechanism (12) and the bract chopper (13); and the engine (57) is a four-cylinder or six-cylinder engine.

3. A corn harvester according to claim 2, characterized in that: The rear working device (6) also includes: an elevator (14), a debris removal device (15) and a debris suction fan (16); the debris removal fan (10) is provided with a debris removal fan shaft (17); the elevator transition double sprocket (9) is installed on one end of the debris removal fan shaft (17); the elevator (14) is provided with an elevator driving shaft (18); the elevator transition double sprocket (9) is connected to one end of the elevator driving shaft (18); the other end of the elevator driving shaft (18) is connected to the debris removal device (15); and the other end of the debris removal fan shaft (17) is connected to the debris suction fan (16).

4. A corn harvester according to claim 2, characterized in that: The ear processing mechanism (12) is provided with a peeling machine (19) with adjustable number of flat rollers and grooved rollers, a reversing seat (20), a husk conveying auger (21), and a pressure conveyor (22). The reversing seat (20) is provided with a reversing seat driving shaft (23) and a reversing seat output shaft (24). The number of the peeling machines (19) ranges from 3 to 6 groups. The peeling machine (19) is provided with a peeling machine main transmission shaft (25). The peeling machine main transmission shaft (25) is respectively connected to the main shaft (8) of the rear working device and the reversing seat driving shaft (23). The reversing seat driving shaft (23) is connected to the husk conveying auger (21). The reversing seat driving shaft (23) is connected to the reversing seat output shaft (24). The reversing seat output shaft (24) is connected to the pressure conveyor (22).

5. A corn harvester according to claim 2, characterized in that: A seed recovery device (26) is arranged below the ear processing mechanism (12).

6. A corn harvester according to claim 5, characterized in that: The seed recovery device (26) is a pull-out seed recovery trough (27), a mechanical seed unloading mechanism (28) or a dual-purpose seed lifting recovery mechanism (29).

7. The corn harvester according to claim 1, characterized in that: The plate-type ear-picking platform (5) comprises: a plate-type ear-picking platform hanging shaft (30), an ear-conveying auger (31), a front stem chopper (32) and at least three groups of ear-picking frames (33); the main transmission shaft (2) is connected to the plate-type ear-picking platform hanging shaft (30), and the plate-type ear-picking platform hanging shaft (30) is respectively connected to the front stem chopper (32), the ear-conveying auger (31) and the ear-picking frame (33).

8. A corn harvester according to claim 7, characterized in that: The plate-type ear-picking platform (5) further comprises: an upper left intermediate shaft (41), a lower left intermediate shaft (44), an upper right intermediate shaft (43), a lower right intermediate shaft, and a reversing gear (45); the two sides of the plate-type ear-picking platform connecting shaft (30) are respectively connected to the upper left intermediate shaft (41) and the upper right intermediate shaft (43); the front stem chopper (32) is divided into a front stem chopper located on the left side and a front stem chopper located on the right side; the upper left intermediate shaft (41) and the upper right intermediate shaft (43) are respectively connected to the upper left intermediate shaft (41) and the lower right intermediate shaft (43); The front stem chopper on the front is connected to the front stem chopper on the right side, the upper left intermediate shaft (41) and the upper right intermediate shaft (43) are respectively connected to the lower left intermediate shaft (44) and the lower right intermediate shaft through the reversing gear (45), the ear picking frame (33) includes an ear picking gear box (35), the lower left intermediate shaft (44) and the lower right intermediate shaft are respectively connected to the ear picking gear box (35), and the lower left intermediate shaft (44) or the lower right intermediate shaft is connected to the ear conveying auger (31).

9. A corn harvester according to claim 8, characterized in that: A cushion block (34) is detachably provided between two adjacent groups of the ear picking frames (33); a transition coupling sprocket (36), a spline sleeve or a universal joint is detachably provided between two adjacent groups of the ear picking gear boxes (35); the ear picking frames (33) further include: an ear picking bracket (60), an ear picking plate (61), a grain-pushing chain (39), a pair of stem-pulling rollers (40), the grain-pushing chain (39), a pair of stem-pulling rollers (40) rotatably mounted on the ear picking bracket (60), an ear picking plate (61) movably mounted on the ear picking bracket (60), a pair of stem-pulling rollers (40) rotate towards each other and are located below the ear picking plate (61), and a pair of stem-pulling rollers (40) and the grain-pushing chain (39) are respectively connected to the ear picking gear box (35).

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