Seed production corn harvester

Abstract

The utility model belongs to the field of agricultural equipment, particularly relates to a seed production corn harvester, and aims to solve the problems of low efficiency, high labor intensity, seasonal shortage of labor force in a suitable seed harvesting period and easiness in damage to seed ears in mechanical harvesting in the conventional manual harvesting. Comprising a rack, a walking device, a power device, an operation device, a header, a lifting device, an impurity discharging device, a peeling device, a cleaning device, a spike collecting box and other key components. The header adopts an external expansion sprocket flexible plate type design, and is equipped with a steel matrix rubber-coated arc-shaped ear picking plate, a'rubber + steel 'clamping conveying chain and a six-edge stem pulling roller, so that low-loss and high-efficiency ear picking is realized. The peeling device achieves the low-loss and high-efficiency peeling effect through flexible peeling, rubbing and speed reduction combined peeling rollers, the seed corn harvester is beneficial to promoting the mechanization process of the seed corn industry, the problem of seasonal shortage of labor force is solved, and the agricultural production efficiency and benefits are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural equipment technical field especially relates to a kind of seed production corn harvester. BACKGROUND

[0002] Seed production corn is specially used for producing high-quality seeds, with high yield, disease resistance and adaptability to different growth conditions.

[0003] The main production areas of seed production corn in China are mainly distributed in Gansu, Xinjiang and Heilongjiang, etc. With the increase of seed demand, the seed production area is increasing year by year. At present, the seed production of corn in China mainly depends on manual work, and mechanical harvesting has not been widely used. The main reasons for the difficulty of mechanized harvesting of seed production corn include: first, the agronomic operation of seed production corn is complex and special, which poses a challenge to mechanized harvesting.

[0004] I. The male and female parents of seed production corn need to be sown in rows respectively, and the planting row spacing, plant spacing and sowing time are different, which increases the difficulty of mechanized row harvesting.

[0005] II. The physical properties of seed production corn change significantly during the harvesting period, which leads to a high total loss rate of the ear during mechanized harvesting, which is difficult to meet the actual demand. Seed production corn requires harvesting at full maturity and when the milk line disappears to ensure the quality of the seeds. At the early stage of maturity, the moisture content of the seeds is about 28%, and the high moisture content makes it easy to damage the seed coat during mechanized harvesting; while at the late stage of maturity, the fruiting ear droop rate increases to 70% as the maturity of the seeds improves and the moisture content decreases, which makes it more likely to cause seed loss or ear drop during mechanized harvesting. Considering the high value of the ear, the standard requires that the total loss rate of mechanized harvesting should not exceed 3%, while the total loss rate of the domestic corn harvesting machinery is between 8% and 11%, which has a big gap.

[0006] III. The ear characteristics of seed production corn are not conducive to mechanized harvesting. The ear of seed production corn is low, which is difficult to adapt to mechanized harvesting, and a large amount of broken stalks produced during the harvesting process can easily block the machine and reduce the harvesting quality; the ear is small in size and shape, with only 50% of the weight of ordinary corn, and the maximum diameter is smaller than the minimum gap of the ear picking plate of the ordinary corn harvester, which can easily cause serious ear damage when directly contacting the stalk pulling roller.

[0007] IV. Seed cleaning is required before harvesting to ensure the purity of the seeds by thoroughly cleaning the working channel of the harvester, but the traditional corn harvesting machinery does not have this function.

[0008] At present, the seed production of corn in China mainly depends on manual work, and mechanized harvesting has not been widely used, but manual harvesting is inefficient and labor-intensive, and there is a seasonal shortage of labor during the seed suitable period, and mechanized harvesting can easily cause damage to the ear. The utility model discloses a kind of seed production corn harvesters, including frame, travelling device, power device and operating device, further comprising:

[0009] The utility model discloses a kind of seed production corn harvesters, including frame, travelling device, power device and operating device, further comprising:

[0010] To achieve the above object, the utility model adopts the following technical scheme:

[0011] A seed production corn harvester, comprising a frame, a walking device, a power device and an operating device, further comprising:

[0012] Header, the header is arranged at the most front end of frame, and the header is used for ear picking;

[0013] Conveying device, the conveying device is installed on the frame and is located behind the header, is connected with the header by shaft transmission mechanism, and the conveying device is used to transport ear and stalk blade;

[0014] Impurity removal device, the impurity removal device is installed on the frame and is located above the conveying device side, and the impurity removal device is used to remove stem leaf weeds mixed in the ear;

[0015] Peeling device, the peeling device is installed on the frame and is located behind the conveying device, and the peeling device is arranged obliquely along the conveying direction, and the peeling device is used to peel the bract of ear and is transported to the ear collecting box;

[0016] Cleaning device, the cleaning device is installed on the frame and is located below the peeling device, and the ear collecting box is arranged behind the peeling device and the cleaning device, and the cleaning device is used to screen the grain and impurities falling in the peeling process.

[0017] Further, the header is fixedly arranged at the front end of frame, the header includes ear picking frame fixedly arranged at the front end of frame, ear picking plate is fixedly arranged above the ear picking frame, and the top end of ear picking plate is provided with a straw divider, the ear picking plate is provided with clamping conveying chain through chain wheel transmission connection above, the ear picking frame is provided with pull stalk roller below, and the pull stalk roller is provided with gap adjusting device on both sides and below, the ear picking frame is provided with gear box behind, the top end of ear picking frame is provided with auger, and the gear box is connected with auger through chain transmission mechanism.

[0018] Further, the ear picking plate is covered with steel matrix rubber layer above, the ear picking plate is in inverted V-shaped structure and the front end is smaller than the rear end, the bending angle of ear picking plate is °, and the edge of ear picking plate is rounded.

[0019] Further, the clamping conveying chain comprises a driving sprocket and a driven sprocket, the driving sprocket is arranged on one side of the gearbox, the driven sprocket is arranged on one side of the ear picking plate, a transmission chain is transmissionally connected between the driving sprocket and the driven sprocket, and the outer wall of the transmission chain is uniformly provided with a plurality of rubber teeth.

[0020] Further, the stem pulling roller is conical, and is composed of six stem pulling body plates connected by bolts.

[0021] Further, the gap adjusting device comprises a rotating swing arm, the rotating swing arm is installed at the bottom end of the ear picking plate through a fixing plate, one end of the rotating swing arm is connected with a rotating push rod through a swing arm connecting plate, one end of the rotating push rod is installed with a pull rod through a pin shaft, one end of the rotating push rod is connected with a push rod through a bolt, the bottom end of the ear picking plate is fixedly provided with an electric push rod, and the output shaft of the electric push rod is connected with the push rod through a pin shaft.

[0022] Further, the auger is provided with a rubber stirring plate in the middle.

[0023] Further, the peeling device comprises a mounting frame, a feeding plate is fixedly arranged at the front end of the mounting frame, a plurality of peeling rollers are rotationally connected to the inner side of the mounting frame, a pressure feeder is installed at the top end of the mounting frame, an inclination adjusting frame for adjusting the angle of the pressure feeder is arranged at the front end of the mounting frame, and a height adjusting device for adjusting the height of the pressure feeder is arranged at the rear end of the mounting frame.

[0024] Further, the peeling device comprises a mounting frame, a feeding plate is fixedly arranged at the front end of the mounting frame, a plurality of peeling rollers are rotationally connected to the inner side of the mounting frame, a pressure feeder is installed at the top end of the mounting frame, an inclination adjusting frame for adjusting the angle of the pressure feeder is arranged at the front end of the mounting frame, and a height adjusting device for adjusting the height of the pressure feeder is arranged at the rear end of the mounting frame.

[0025] Further, the feeding plate comprises a triangular guide plate arranged at the center of the feeding plate, the peeling rollers comprise a plurality of processing rollers and a plurality of conveying rollers, the plurality of processing rollers and the plurality of conveying rollers are arranged side by side and staggered, the processing rollers are composed of a skin breaking roller, a rubbing roller and a speed reducing and impurity removing roller, the pressure feeder comprises a spike wheel, a pressure star wheel and a throwing wheel, the spike wheel, the pressure star wheel and the throwing wheel are sequentially arranged on one side of the feeding plate, the spike wheel, the pressure star wheel and the throwing wheel are rotationally connected between the inner walls on both sides of the pressure feeder, and the spike wheel, the pressure star wheel and the throwing wheel are transmissionally connected through a sprocket and a chain.

[0026] Further, the circumferential pattern of the skin breaking roller is arranged as an intermittent spiral groove, the circumferential pattern of the rubbing roller is arranged as a small pitch and a large pitch with a ratio of 1:3, and the circumferential pattern of the speed reducing and impurity removing roller is arranged as a small pitch.

[0027] Further, a plurality of flexible rubber push plates are mounted on the periphery of the bunch wheel and the throwing wheel, the pressing star wheel is made of rubber, and a plurality of push gears arranged in a spiral shape are arranged on the periphery of the pressing star wheel.

[0028] Further, a flexible rubber guard plate is arranged in the bunch box.

[0029] Further, the height adjusting device comprises a height adjusting rod and a height adjusting plate, the height adjusting rod is rotationally connected to the rear end outer wall of the mounting frame, the height adjusting plate is fixedly arranged on the rear end outer wall of the mounting frame, a plurality of second limiting holes are formed in one side of the height adjusting plate, a second limiting bolt is threadedly penetrated through one side of the height adjusting rod, one end of the second limiting bolt is penetrated through one of the second limiting holes, a supporting rod is rotationally connected to one side of the height adjusting rod, and the supporting rod is rotationally connected to the pressing device.

[0030] Further, the inclination adjusting frame comprises an angle adjusting plate, the angle adjusting plate is fixedly arranged on the front end outer wall of the mounting frame, a plurality of first limiting holes are formed in one side of the angle adjusting plate, an angle adjusting rod is rotationally connected to one side of the angle adjusting plate, a first connecting rod is rotationally connected to one side of the angle adjusting rod, the first connecting rod is rotationally connected to the pressing device, a first limiting bolt is threadedly penetrated through one side of the angle adjusting rod, and one end of the first limiting bolt is penetrated through one of the first limiting holes.

[0031] Beneficial effects:

[0032] The seed production corn harvester adopts the flexible plate type ear picking header with outwardly expanded chain teeth, is provided with the steel base rubber coated arc ear picking plate, the "rubber + steel" clamping conveying chain and the small-inclination low-speed six-rib stem pulling roller above the header, and replaces manual harvesting, so that low-loss and high-efficiency ear picking and conveying are ensured.

[0033] The seed production corn harvester adopts the combination of flexible peeling, rubbing and speed reduction, can realize low-loss and high-efficiency peeling, and can replace the peeling machine and the conveyor according to the peeling demand of farmers and different varieties, so that the applicability of the seed production corn harvester is improved.

[0034] The seed production corn harvester realizes full-process mechanized harvesting of seed production corn, from ear picking of the header, lifting, impurity removal, peeling to cleaning and collecting, the whole process has high automation degree, the harvesting efficiency is greatly improved, the labor intensity of farmers is reduced, and the problems of low efficiency and high labor intensity in manual harvesting are solved.

[0035] The utility model discloses a seed production corn harvester, in the cutting platform design, adopts the steel matrix rubber layer covering to the earing board, and presents the inverted V design, and the edge carries out the round angle processing, effectively reduced the injury of the seed ear in the earing process.

[0036] The utility model discloses a seed production corn harvester, the flexible rubber guard board that is set up in the earing box, avoided the direct contact of the ear in the throwing process with rigid material, reduced the injury and loss of the kernel.

[0037] The seed production corn harvester of the application provides a feasible technical scheme for the mechanized harvesting of seed production corn, helps to promote the mechanization process of seed production corn industry, solves the seasonal shortage of labor, and improves the agricultural production efficiency and benefit. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 A front view structural schematic drawing of a seed production corn harvester is provided for the utility model;

[0039] Figure 2 A cutting platform structural schematic drawing of a seed production corn harvester is provided for the utility model;

[0040] Figure 3 A gap adjusting device structural schematic drawing of a seed production corn harvester is provided for the utility model;

[0041] Figure 4 A peeling device structural schematic drawing of a seed production corn harvester is provided for the utility model;

[0042] Figure 5 A conveying type replacement peeling device structural schematic drawing of a seed production corn harvester is provided for the utility model;

[0043] Figure 6 A height adjusting device structural schematic drawing of a seed production corn harvester is provided for the utility model;

[0044] Figure 7 An angle adjusting frame structural schematic drawing of a seed production corn harvester is provided for the utility model;

[0045] Figure 8 A peeling roller structure schematic drawing in the peeling device of a seed production corn harvester is provided for the utility model;

[0046] Figure 9 An earing box structural schematic drawing of a seed production corn harvester is provided for the utility model.

[0047] In the figure: 1, rack; 2, header; 3, elevator; 4, impurity removal device; 5, peeling device; 6, cleaning device; 7, grain tank; 8, traveling device; 9, power device; 10, operating device; 21, picker frame; 22, picker plate; 23, clamping conveying chain; 24, stalk pulling roller; 25, gap adjusting device; 26, gear box; 27, auger; 28, divider; 231, transmission chain; 211, driven sprocket; 232, rubber tooth; 241, stalk pulling body plate; 251, rotating swing arm; 252, swing arm connecting plate; 253, rotating push rod; 254, pull rod; 255, push rod; 261, driving sprocket; 271, rubber scraping plate; 51, mounting frame; 52, feeding plate; 53, inclination adjusting frame; 54, peeling roller; 55, pressure feeder; 56, conveying device; 57, height adjusting device; 521, triangular guide plate; 541, breaking roller; 542, rubbing roller; 543, speed reduction and impurity removal roller; 544, conveying roller; 551, ear wheel; 552, pressure feeder star wheel; 553, throwing wheel; 561, conveying belt; 5521, tooth; 531, angle adjusting plate; 532, angle adjusting rod; 533, first connecting rod; 534, first limiting hole; 535, first limiting bolt; 571, height adjusting rod; 572, second limiting bolt; 573, support rod; 574, height adjusting plate; 575, second limiting hole; 71, rubber guard. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments of the present application.

[0049] Embodiment 1

[0050] Reference Figures 1-9The utility model provides a kind of seed corn harvester, including frame 1, travelling device 8, power device 9 and operating device 10, it further includes header 2, header 2 is arranged in the most front end of frame 1, header 2 is used to ear picking, header 2 is fixedly arranged in the front end of frame 1, header 2 includes ear picking frame 21 fixedly arranged in the front end of frame 1, ear picking frame 21 top is fixedly arranged with ear picking plate 22, the top of ear picking plate 22 is equipped with straw divider 28, ear picking plate 22 top is connected with clamping conveying chain 23 by sprocket drive, ear picking frame 21 below is equipped with stem pulling roller 24, stem pulling roller 24 both sides and below are provided with gap adjusting device 25, ear picking frame 21 rear is fixedly arranged with gear box 26, the top of ear picking frame 21 is equipped with auger 27, gear box 26 is connected with auger 27 by chain transmission mechanism, the middle part of auger 27 is provided with rubber raking plate 271, stem pulling roller 24 is conical, stem pulling roller 24 is connected by six stem pulling body plates 241 by bolt, stem pulling roller 24 is set in staggered knife mode.The frame 1 is installed with elevating device 3 on the rear of header 2, and is connected with header 2 by shaft transmission mechanism, and elevating device 3 is used to transport ear and stalk blade.The frame 1 is installed with impurity removal device 4 on the side of elevating device 3 top, and impurity removal device 4 is used to remove stem leaf weed mixed in ear;Gap adjusting device 25 includes rotary swing arm 251, and rotary swing arm 251 is installed on the bottom end of ear picking plate 22 by fixed plate, one end of rotary swing arm 251 is connected with rotary push rod 253 by swing arm connecting plate 252, one end of rotary push rod 253 is installed with pull rod 254 by pin shaft, one end of rotary push rod 253 is connected with push rod 255 by bolt, the bottom end of ear picking plate 22 is fixedly arranged with electric push rod, and the output shaft of electric push rod is connected with push rod 255 by pin shaft.Clamping conveying chain 23 includes driving sprocket 261 and driven sprocket 211, driving sprocket 261 is arranged on one side of gear box 26, driven sprocket 211 is arranged on one side of ear picking plate 22, and driving sprocket 261 and driven sprocket 211 are transmissionally connected with transmission chain 231, and the outer wall of transmission chain 231 is evenly distributed with a plurality of rubber raking teeth 232.

[0051] When working, straw divider 28 first straightens corn stalk, and clamping conveying chain 23 and stem pulling roller 24 guide cone guide corn stalk into each row, and corn stalk is clamped in the gap of ear picking plate 22, and stem pulling roller 24 rotates towards each other and pulls stem section to pull down corn stalk, when corn ear hits ear picking plate 22, its big end is stuck, and ear and stalk are disconnected and fall on header 2, and are conveyed into auger 27 by rubber raking teeth 232 on clamping conveying chain 23, to complete ear picking of header 2.

[0052] When the seed corn is mechanically harvested, the seed corn plants enter the header 2, and then the ear picking is performed above the header 2, the stems are discharged from below the header 2, the ear and stem residues are transported rearward by the lifting device 3, and then the ear and stem residues are transported to the impurity removal device 4, the impurities are discharged along the air outlet, the ear is transported rearward to the peeling device 5 for peeling, the bract and fallen kernels are cleaned in the cleaning device 6 during the peeling process, and finally the ear stripped of the bract is transported to the ear collecting box 7.

[0053] The peeling device 5 is installed on the rear of the lifting device 3 on the frame 1, the peeling device 5 is arranged obliquely along the conveying direction, the peeling device 5 is used for stripping the bract of the ear and conveying the bract to the ear collecting box 7, the peeling device 5 comprises a mounting frame 51, a feeding plate 52 is fixedly arranged at the front end of the mounting frame 51, a plurality of peeling rollers 54 are rotatably connected to the inner side of the mounting frame 51, a pressure feeder 55 is arranged at the top end of the mounting frame 51, an inclination adjusting frame 53 is arranged at the front end of the mounting frame 51 and used for adjusting the angle of the pressure feeder 55, and a height adjusting device 57 is arranged at the rear end of the mounting frame 51 and used for adjusting the height of the pressure feeder 55.

[0054] The peeling device 5 comprises the mounting frame 51, the feeding plate 52 is fixedly arranged at the front end of the mounting frame 51, the plurality of peeling rollers 54 are rotatably connected to the inner side of the mounting frame 51, the conveying device 56 is arranged at the top end of the mounting frame 51, and the conveying device 56 comprises two vertical plates fixedly arranged at the top end of the mounting frame 51 and a conveying belt 561 arranged between the two vertical plates.

[0055] The feeding plate 52 comprises a triangular guide plate 521 arranged at the center of the feeding plate 52, the peeling rollers 54 comprise a plurality of processing rollers and a plurality of conveying rollers 544, the plurality of processing rollers and the plurality of conveying rollers 544 are arranged side by side and staggered, the processing rollers are combined by a skin breaking roller 541, a rubbing roller 542 and a speed reduction and impurity removal roller 543, the pressure feeder 55 comprises an ear poking wheel 551, a pressure star wheel 552 and a throwing wheel 553, the ear poking wheel 551, the pressure star wheel 552 and the throwing wheel 553 are sequentially arranged on one side of the feeding plate 52, the ear poking wheel 551, the pressure star wheel 552 and the throwing wheel 553 are rotatably connected between the inner walls on both sides of the pressure feeder 55, and the ear poking wheel 551, the pressure star wheel 552 and the throwing wheel 553 are drivingly connected by a chain wheel and a chain.

[0056] The circumferential pattern of the skin breaking roller 541 is arranged as an intermittent spiral groove, the circumferential pattern of the rubbing roller 542 is arranged as a small pitch and a large pitch with a ratio of 1:3, and the circumferential pattern of the speed reduction and impurity removal roller 543 is arranged as a small pitch.

[0057] The ear poking wheel 551 and the throwing wheel 553 are each provided with a plurality of flexible rubber poking plates around the circumference, the pressure star wheel 552 is made of rubber, and the pressure star wheel 552 is provided with a plurality of poking teeth 5521 arranged in a spiral pattern around the circumference.

[0058] The inside of the cluster box 7 is provided with a flexible rubber guard 71.

[0059] The cleaning device 6 is installed on the frame 1 and located below the peeling device 5, and the cluster box 7 is arranged behind the peeling device 5 and the cleaning device 6, and the cleaning device 6 is used for screening the dropped seeds and impurities in the peeling process.

[0060] The height adjusting device 57 comprises a height adjusting rod 571 and a height adjusting plate 574, the height adjusting rod 571 is rotationally connected to the rear end outer wall of the mounting frame 51, the height adjusting plate 574 is fixedly arranged on the rear end outer wall of the mounting frame 51, a plurality of second limiting holes 575 are arranged on one side of the height adjusting plate 574, a second limiting bolt 572 is threaded through one side of the height adjusting rod 571, one end of the second limiting bolt 572 penetrates through one of the second limiting holes 575, a supporting rod 573 is rotationally connected to one side of the height adjusting rod 571, and the supporting rod 573 is rotationally connected to the pressure feeder 55.

[0061] The inclination adjusting frame 53 comprises an angle adjusting plate 531, the angle adjusting plate 531 is fixedly arranged on the front end outer wall of the mounting frame 51, a plurality of first limiting holes 534 are arranged on one side of the angle adjusting plate 531, an angle adjusting rod 532 is rotationally connected to one side of the angle adjusting plate 531, a first connecting rod 533 is rotationally connected to one side of the angle adjusting rod 532, the first connecting rod 533 is rotationally connected to the pressure feeder 55, a first limiting bolt 535 is threaded through one side of the angle adjusting rod 532, and one end of the first limiting bolt 535 penetrates through one of the first limiting holes 534.

[0062] When the peeling operation is performed, the seed ear is dropped into the front end of the peeling device 5 by the lifting device 3, and first, the seed ear is driven by the seed ear poking wheel 551 to be transported to the husking roller 541 along the speed reduction section. The husking roller 541 has small grooves above the flange, which can cut the bract, and complete the first step of husking. Then, the seed ear is sent to the rubbing roller 542 by the pressure sending star wheel 552. Each group of husking rollers 54 rotates towards each other to grasp the cut seed ear bract. In the axial direction of the husking roller 54, the seed ear slides downward along the groove of the rubber roller under the force of its own gravity and the husking roller 54. At this time, the bract is subjected to an upward friction force. In the normal direction of the husking roller 54 axis, due to the different surface textures of the two husking rollers 54, the seed ear is subjected to different torques applied by the husking roller 54, so that it rotates around the axis of the husking roller 54. When the friction between the bract and the rubber roller is greater than the friction between the seed ear and the bract, the bract is peeled off. The seed ear after the bract is peeled off reaches the last speed reduction and impurity removal roller 543, which can remove the impurities through the groove while the seed ear is being slowed down. The rear end of the throwing wheel 553 transports the peeled seed ear to the ear collecting box 7, and the peeled bract falls through the gap between the husking rollers 54 and is transported out of the machine by the cleaning device 6 below. The grains that fall during the husking process are collected in the cleaning device 6. When the seed ear is harvested without peeling, the seed ear is transported by the lifting device 3 to the conveying belt 561 of the conveying device 56, and the fruit ear with bract is directly transported to the ear collecting box 7. The bottom and inner rear of the ear collecting box 7 are provided with a flexible rubber guard 71 to avoid direct contact between the fruit ear and the rigid material of the grain bin during throwing, which can cause grain damage.

[0063] Example 2

[0064] The seed corn harvester improved on the basis of example 1 is applied to the field of agricultural equipment.

[0065] In another aspect of the embodiment, the stripping plate 22 is covered with a steel matrix rubber layer, which combines the strength of steel and the flexibility of rubber, allowing the stripping plate 22 to maintain sufficient rigidity while providing a more gentle contact surface for the corn stalks and ears. The steel matrix rubber layer effectively reduces mechanical damage to the corn ears during the stripping process, improving the integrity of the ears. The stripping plate 22 has an inverted V-shaped structure with the front end smaller than the rear end, which naturally forms a converging channel when guiding the corn stalks into the stripping area, helping to concentrate and align the corn stalks. At the same time, the inverted V-shaped structure also facilitates the separation and falling of the ears during the stripping process, reducing the possibility of the ears being stuck or pulled out. The stripping plate 22 has a bending angle of 15°, which ensures effective contact between the stripping plate 22 and the corn stalks without causing excessive bending or breaking of the stalks due to excessive angle, ensuring smooth and efficient stripping process. The edges of the stripping plate 22 are rounded, which not only improves the aesthetics of the stripping plate 22, but more importantly reduces friction and collision with the corn stalks and ears during use, further reducing the risk of mechanical damage. The rounded edges make the stripping plate 22 smoother when in contact with the corn stalks, helping to reduce damage to the stalks and shedding of the ears.

Claims

1. A seed corn harvester comprising a frame (1), a running gear (8), a power unit (9) and an operating unit (10), characterized in that Also include: Header (2) is arranged in the most front end of the frame (1), the header (2) is used for ear picking; The elevator (3) is installed on the frame (1) and located behind the header (2), which is connected with the header (2) through shaft transmission mechanism, and the elevator (3) is used for conveying seedling and stem blade; Impurity removal device (4) is installed on the frame (1) and located above the elevator (3) side, the impurity removal device (4) is used for removing the stem leaf weeds mixed in the seedling; The peeling device (5) is installed on the frame (1) and located behind the elevator (3), the peeling device (5) is arranged inclined along the conveying direction, the peeling device (5) is used for stripping the seedling bract and conveying to the seedling box (7); The cleaning device (6) is installed on the frame (1) and located below the peeling device (5), the seedling box (7) is arranged behind the peeling device (5) and the cleaning device (6), the cleaning device (6) is used for screening the grain and impurities falling in the peeling process; The header (2) is fixedly arranged on the front end of the frame (1), the header (2) comprises a ear picking frame (21) fixedly arranged on the front end of the frame (1), an ear picking plate (22) is fixedly arranged above the ear picking frame (21), a divider (28) is arranged on the top end of the ear picking plate (22), a clamping conveying chain (23) is connected with the ear picking plate (22) through sprocket transmission above the ear picking plate (22), a stem pulling roller (24) is arranged below the ear picking frame (21), gap adjusting devices (25) are arranged on both sides and below the stem pulling roller (24), a gear box (26) is fixedly arranged behind the ear picking frame (21), an auger (27) is arranged on the top end of the ear picking frame (21), and the gear box (26) is connected with the auger (27) through chain transmission mechanism; The ear picking plate (22) is covered with a steel matrix rubber layer, the ear picking plate (22) is inverted V-shaped in structure and the front end is smaller than the rear end, the bending angle of the ear picking plate (22) is (15) °, and the edge of the ear picking plate (22) is rounded. The clamping conveying chain (23) comprises a driving sprocket (261) and a driven sprocket (211), the driving sprocket (261) is arranged on one side of the gear box (26), the driven sprocket (211) is arranged on one side of the ear picking plate (22), and transmission chains (231) are transmission connected between the driving sprocket (261) and the driven sprocket (211), a plurality of rubber teeth (232) are uniformly distributed on the outer wall of the transmission chain (231).

2. A seed corn harvester according to claim 1, characterized in that The stem pulling roller (24) is conical, the stem pulling roller (24) is composed of six stem pulling body plates (241) connected by bolts, and the stem pulling roller (24) is arranged in staggered knife mode.

3. A machine for harvesting seed corn as claimed in claim 2 wherein, The gap adjusting device (25) comprises a rotating rotating arm (251) which is installed at the bottom end of the ear picking plate (22) through a fixing plate, one end of the rotating rotating arm (251) is connected with a rotating push rod (253) through a rotating arm connecting plate (252), one end of the rotating push rod (253) is installed with a pull rod (254) through a pin shaft, one end of the rotating push rod (253) is connected with a push rod (255) through a bolt, and the bottom end of the ear picking plate (22) is fixedly provided with an electric push rod, and the output shaft of the electric push rod is connected with the push rod (255) through a pin shaft.

4. A seed corn harvester according to claim 3, wherein, The auger (27) is provided with a rubber stirring plate (271) in the middle.

5. A seed corn harvester according to claim 4 wherein, The peeling device (5) comprises a mounting frame (51), a feeding plate (52) is fixedly arranged at the front end of the mounting frame (51), a plurality of peeling rollers (54) are rotatably connected to the inner side of the mounting frame (51), a pressure feeder (55) is arranged at the top end of the mounting frame (51), an inclination adjusting frame (53) for adjusting the angle of the pressure feeder (55) is arranged at the front end of the mounting frame (51), and a height adjusting device (57) for adjusting the height of the pressure feeder (55) is arranged at the rear end of the mounting frame (51).

6. A seed corn harvester according to claim 5 wherein, A conveying device (56) is arranged at the top end of the mounting frame (51), and the conveying device (56) comprises two vertical plates fixedly arranged at the top end of the mounting frame (51), and a conveying belt (561) is arranged between the two vertical plates.

7. A machine for harvesting seed corn as claimed in claim 6 wherein, The feeding plate (52) comprises a triangular guide plate (521) arranged at the center of the feeding plate (52), the peeling roller (54) comprises a plurality of processing rollers and a plurality of conveying rollers (544), the plurality of processing rollers and the plurality of conveying rollers (544) are arranged side by side and staggered, the processing roller is composed of a skin breaking roller (541), a rubbing roller (542) and a speed reduction and impurity removal roller (543), the pressure feeder (55) comprises a spike wheel (551), a pressure feeder star wheel (552) and a throwing wheel (553), the spike wheel (551), the pressure feeder star wheel (552) and the throwing wheel (553) are sequentially arranged on one side of the feeding plate (52), the spike wheel (551), the pressure feeder star wheel (552) and the throwing wheel (553) are rotatably connected between the inner walls on both sides of the pressure feeder (55), and the spike wheel (551), the pressure feeder star wheel (552) and the throwing wheel (553) are drivingly connected through a chain wheel and a chain.

8. A machine for harvesting seed corn as claimed in claim 7 wherein, The circumferential pattern of the skin breaking roller (541) is arranged as an intermittent spiral groove, the circumferential pattern of the rubbing roller (542) is arranged as a small pitch and a large pitch with a ratio of 1:3, and the circumferential pattern of the speed reduction and impurity removal roller (543) is arranged as a small pitch.

9. A machine for harvesting seed corn as claimed in claim 8 wherein, The spike wheel (551) and the throwing wheel (553) are both provided with a plurality of flexible rubber stirring plates around the circumference, the pressure feeder star wheel (552) is made of rubber, and the pressure feeder star wheel (552) is provided with a plurality of stirring teeth (5521) arranged in a spiral manner around the circumference.

10. A seed corn harvester according to claim 9, wherein, The cluster box (7) is internally provided with a flexible rubber guard plate (71).

11. A seed corn harvester according to claim 10 wherein, The height adjusting device (57) comprises a height adjusting rod (571) and a height adjusting plate (574), the height adjusting rod (571) is rotationally connected to the rear end outer wall of the mounting rack (51), the height adjusting plate (574) is fixedly arranged on the rear end outer wall of the mounting rack (51), a plurality of second limiting holes (575) are arranged on one side of the height adjusting plate (574), a second limiting bolt (572) is threaded through one side of the height adjusting rod (571), one end of the second limiting bolt (572) penetrates one of the second limiting holes (575), a support rod (573) is rotationally connected to one side of the height adjusting rod (571), and the support rod (573) is rotationally connected to the pressure feeder (55).

12. A machine for harvesting seed corn as claimed in claim 11 wherein, The inclination adjusting rack (53) comprises an angle adjusting plate (531), the angle adjusting plate (531) is fixedly arranged on the front end outer wall of the mounting rack (51), a plurality of first limiting holes (534) are arranged on one side of the angle adjusting plate (531), an angle adjusting rod (532) is rotationally connected to one side of the angle adjusting plate (531), a first connecting rod (533) is rotationally connected to one side of the angle adjusting rod (532), the first connecting rod (533) is rotationally connected to the pressure feeder (55), a first limiting bolt (535) is threaded through one side of the angle adjusting rod (532), and one end of the first limiting bolt (535) penetrates one of the first limiting holes (534).

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