Cutting platform device and self-propelled sweet and sticky corn fresh ear harvester

Abstract

The present invention discloses a cutting platform device and a self-propelled sweet and sticky corn fresh ear harvester, belonging to agricultural machinery and equipment. The cutting platform device includes a stalk cutting device, a clamping device, a conveying device, and a cutting platform frame. An ear picking and stem pulling device is provided below the rear portion of the clamping frame of the clamping device. The ear picking and stem pulling device includes roller groups arranged on both sides below the conveying channel, each roller group including an ear picking roller and a stem pulling roller, with the stem pulling roller located behind the ear picking roller. The ear picking roller is connected to a driving device, which drives the ear picking roller to rotate. The ear picking rollers in the two roller groups rotate in opposite directions. Within the same roller group, the stem pulling roller is connected to the ear picking roller via a transmission mechanism, and the stem pulling roller rotates in opposite directions to the ear picking roller, making the ear picking process similar to the lever principle of manual ear picking, achieving the purpose of low-loss ear picking and shortening the overall dimensions of the machine. The self-propelled sweet and sticky corn fresh ear harvester provided by the present invention has a smooth ride and is particularly suitable for operation in hilly areas, which helps reduce input costs and labor intensity.

Description

Technical Field

[0001] The present invention relates to agricultural machinery and equipment, and in particular to a harvesting platform device and a self-propelled sweet and sticky corn fresh ear harvesting machine. Background Art

[0002] Sweet sticky corn is a specialty culinary corn that combines both sweetness and stickiness, boasting a good stickiness, high sweetness, and a moderate sweetness. However, due to the small scale, scattered plots, and diverse varieties of sweet sticky corn, most harvesting is done manually, which is labor-intensive and requires harsh working conditions.

[0003] Currently, corn harvesters are used in a few areas to harvest sweet and sticky corn, but these corn harvesters mainly use corn harvesters for harvesting mature corn. The harvesting principle is to use a set gap to limit the passage of the corn cob when grabbing the stalk below the corn cob and pulling it down. When the pulling force exceeds the bearing capacity of the corn cob root, the corn cob is stuck and falls off, and the required force is large. However, since the corn cobs of sweet and sticky corn are tender and fragile, if the above-mentioned corn harvesters are used, mechanical damage to the corn cobs, especially their tails, will often occur. In addition, the stalk part of the corn cob cannot be reliably retained, which affects the appearance of the product and is not conducive to freshness preservation. In addition, due to its large size, existing corn harvesters are difficult to operate in small, scattered plots, which is not conducive to direct use for harvesting sweet and sticky corn. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a harvesting platform device and a self-propelled sweet and sticky corn fresh ear harvester, which at least achieves the purpose of reducing the damage to the corn ears.

[0005] To solve the above technical problems, according to one aspect of the present invention, a cutting platform device is provided, comprising a stalk cutting device, a clamping device, a conveying device and a cutting platform frame, wherein the conveying device is mounted on the upper portion of the cutting platform frame, the clamping device is offset and mounted on one side of the cutting platform frame, and the stalk cutting device is mounted on the cutting platform frame below the front end of the clamping device;

[0006] The clamping device includes a clamping frame and two sets of clamping mechanisms arranged on the clamping frame. Each set of clamping mechanisms includes a clamping belt driving wheel and a clamping belt passive wheel respectively arranged at two ends of the clamping frame. The clamping belt driving wheel and the clamping belt passive wheel are connected between the clamping belt driving wheel and the clamping belt passive wheel. A conveying channel for corn stalks is formed between the inner clamping belts of the two sets of clamping mechanisms.

[0007] An ear picking and stem pulling device is provided at the lower rear part of the clamping frame, and the ear picking and stem pulling device includes roller groups respectively arranged on both sides below the conveying channel, and each roller group includes an ear picking roller and a stem pulling roller, and the stem pulling roller is located behind the ear picking roller; the ear picking roller is connected to the driving device, and the ear picking roller is driven by the driving device to rotate, and the ear picking rollers in the two roller groups rotate in opposite directions; in the same roller group, the stem pulling roller is connected to the ear picking roller through a transmission mechanism, and the stem pulling roller and the ear picking roller rotate in opposite directions.

[0008] Furthermore, the clamping frame includes a fixed clamping frame and a movable clamping frame;

[0009] The fixed clamping frame includes a fixed clamping frame beam and a fixed connecting bracket, one or more fixed connecting brackets are fixedly arranged on the outside of the fixed clamping frame beam, and the bottom of the fixed connecting bracket is fixedly connected to the cutting platform frame through a column; the movable clamping frame includes a movable clamping frame beam and a movable connecting bracket, one or more movable connecting brackets are fixedly arranged on the outside of the movable clamping frame beam; the front end of the fixed connecting bracket is inserted into the inside of the front end of the movable connecting bracket.

[0010] Furthermore, the clamping belt driving wheel and the clamping belt passive wheel are respectively installed at both ends of the fixed clamping frame and the two ends of the movable clamping frame; a number of clamping belt support wheels are evenly distributed between the clamping belt driving wheel and the clamping belt passive wheel, and the clamping belt support wheels are installed on the fixed clamping frame crossbeam and the movable clamping frame crossbeam; the clamping belt driving wheel, the clamping belt passive wheel and the clamping belt support wheel are wrapped and connected by the clamping belt.

[0011] Furthermore, the top end of the ear-picking roller is connected to the top seat of the ear-picking roller through a bearing, and the bottom end of the ear-picking roller is connected to the rotating shaft of the ear-picking drive motor serving as a driving device; the top seat of the ear-picking roller is fixedly connected to the clamping frame, the ear-picking drive motor is fixedly connected to the base of the ear-picking roller, and the base of the ear-picking roller is connected to the cutting platform frame through the ear-picking device fixing frame.

[0012] Furthermore, the transmission mechanism includes an ear picking roller gear, a transition gear, a transition sprocket and a stem pulling roller sprocket;

[0013] A tensioning seat is hinged at each end of the ear picking roller, and three universal bearing seats distributed in a triangle are fixed on each tensioning seat. Among them, the first universal bearing seat is concentrically connected to the ear picking roller, and the ear picking roller gear is coaxially fixed on the top of the ear picking roller; the second universal bearing seat is connected to the coaxially installed transition gear and transition sprocket, and the third universal bearing seat is connected to the coaxially installed stem pulling roller sprocket and the stem pulling roller; the ear picking roller gear is meshed with the transition gear, and the transition sprocket and the stem pulling roller sprocket are connected through a transmission chain.

[0014] Furthermore, it includes a stem pulling roller swinging mechanism, wherein the stem pulling roller swinging structure includes a ball head tensioning rod, a rotating seat and a stem pulling tensioning spring;

[0015] The two tensioning seats at both ends of the ear-picking roller are rigidly connected into one through a connecting rod. The bottom end of the connecting rod is hinged to the ball end of the ball tensioning rod. The other end of the ball tensioning rod is slidably connected to the hole opened in the rotating seat. The lower end of the rotating seat is hinged to the fixing frame of the ear-picking device. A stem-pulling tensioning spring is mounted on the ball tensioning rod. The two ends of the stem-pulling tensioning spring are respectively supported on the inner side of the rotating seat and the inner side of the ball end of the ball tensioning rod.

[0016] Furthermore, a reed disc is coaxially mounted on the top of the passive wheel of the clamping belt, and a reed divider is provided at the front end of the fixed clamping frame crossbeam and the movable clamping frame crossbeam.

[0017] Furthermore, the conveying device includes a transverse conveying device and a longitudinal conveying device;

[0018] The transverse conveying device includes a passive shaft of the transverse conveying device, a transverse conveying belt, and a driving shaft of the transverse conveying device, wherein the transverse conveying belt is connected between the passive shaft of the transverse conveying device and the driving shaft of the transverse conveying device;

[0019] The longitudinal conveying device includes a longitudinal conveying device passive shaft, a longitudinal conveying belt, and a longitudinal conveying device driving shaft, wherein the longitudinal conveying belt is connected between the longitudinal conveying device passive shaft and the longitudinal conveying device driving shaft;

[0020] The transverse conveyor belt and the longitudinal conveyor belt are arranged perpendicularly.

[0021] According to another aspect of the present invention, a self-propelled sweet and sticky corn fresh ear harvester is provided, comprising the above-mentioned header device.

[0022] Furthermore, it includes a corn cob elevator, a corn stalk crushing device, a traveling device, a driving platform, a debris removal device, a diesel engine assembly, a fresh cob chute, a chassis and a corn cob box;

[0023] The corn cob elevator, corn stalk crushing device, traveling device, driving platform, diesel engine assembly and corn cob box are all arranged on the chassis;

[0024] The header device is arranged in front of the chassis, and the corn stalk crushing device is arranged below the front end of the header device; the corn cob box is arranged above the rear part of the chassis, the corn cob elevator is arranged on the front side of the chassis, the fresh cob chute is arranged between the end of the corn cob elevator and the corn cob box, and the debris removal device is arranged above the middle part of the corn cob elevator;

[0025] The running gear is arranged under the chassis, the operating platform is located on the other side of the front of the chassis, and the diesel engine assembly is located behind the operating platform.

[0026] The cutting table device provided by the present invention includes an improved ear picking and stem pulling device, the stem pulling roller of which rotates in the opposite direction to the ear picking roller and has a certain clamping force. The ear picking process is similar to the lever principle of manual ear picking, thereby achieving the purpose of low-loss ear picking and shortening the overall length of the cutting table device, so that the external dimensions of the machine are shortened, the center of gravity distribution is more reasonable, and the operation is more stable and safe.

[0027] The self-propelled sweet and sticky corn fresh ear harvester provided by the present invention integrates multiple functions, is easy to operate, travels smoothly, and has a low impurity rate after harvest. It is particularly suitable for operation in hilly areas, and is beneficial to reducing investment costs and labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings herein are used to provide further illustration of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their description are used to explain the present invention and do not constitute improper limitations on the present invention.

[0029] Figure 1 This is a schematic structural diagram of the self-propelled sweet and sticky corn fresh ear harvester according to the present invention;

[0030] Figure 2 It is a structural diagram of the header device;

[0031] Figure 3 It is a structural schematic diagram of the clamping device;

[0032] Figure 4 It is a structural diagram of an ear picking and stem pulling device;

[0033] Figure 5 It is a structural diagram of the stem pulling roller;

[0034] Figure 6 is a schematic structural diagram of a first tensioning device and a second tensioning device;

[0035] Figure 7 It is a structural diagram of the conveying device.

[0036] In the figure, 1-cutting platform device, 2-corn ear elevator, 3-corn stalk crushing device, 4-travel device, 5-driving platform, 6-waste removal device, 7-diesel engine assembly, 8-fresh ear chute, 9-chassis, 10-corn ear box;

[0037] 11- stalk cutting device, 12- clamping device, 13- transverse conveying device, 14- longitudinal conveying device, 15- ear picking and stalk pulling device, 16- hydraulic station, 17- cutting platform support arm, 18- cutting platform lifting cylinder, 19- cutting platform frame;

[0038] 101-heading platform main shaft, 102-right angle transmission box, 103-heading platform transition shaft, 301-corn stalk crushing device drive shaft;

[0039] 1201 - Grain divider, 1202 - First tensioning device, 1203 - Clamping belt passive wheel, 1204 - Grain plowing plate, 1205 - Second tensioning device, 1206 - Fixed clamping frame, 1207 - Movable clamping frame, 1208 - Clamping belt support wheel, 1209 - Clamping belt drive motor, 1210 - Clamping belt active wheel, 1211 - Forced stalk remover, 1212 - Connecting seat of ear picking and stem pulling device, 1213 - Clamping belt, 1214 - Post;

[0040] 12021 - first tensioning rod, 12022 - first tensioning adjustment nut, 12023 - first tensioning spring, 12024 - first tensioning fixing sleeve, 12025 - first tensioning fixing plate, 12026 - first tensioning movable tube;

[0041] 12051 - second tensioning movable tube, 12052 - second tensioning fixing plate, 12053 - second tensioning fixing sleeve, 12054 - second tensioning spring, 12055 - second tensioning adjusting nut, 12056 - second tensioning rod;

[0042] 12061-fixed clamping frame crossbeam, 12062-fixed connecting bracket, 12071-movable clamping frame crossbeam, 12072-movable connecting bracket;

[0043] 1301-transverse conveyor driven shaft, 1302-transverse conveyor belt, 1303-transverse conveyor driving shaft, 1304-guard plate, 1401-longitudinal conveyor driven shaft, 1402-longitudinal conveyor driving shaft, 1403-longitudinal conveyor belt;

[0044] 1501-ear picking roller top seat, 1502-ear picking roller, 1503-ear picking roller gear, 1504-transition gear, 1505-transition sprocket, 1506-stem pulling roller sprocket, 1507-stem pulling roller, 1508-tensioning seat, 1509-universal bearing seat, 1510-connecting rod, 1511-ear picking drive motor, 1512-ear picking roller base, 1513-ear picking device fixing frame, 1514-ball head tensioning rod, 1515-rotating seat, 1516-stem pulling tensioning spring, 1517-stem pulling tensioning force adjusting nut;

[0045] 1601-Hydraulic station power shaft. DETAILED DESCRIPTION

[0046] In order to make those skilled in the art better understand the present invention, the present invention is further clearly and completely described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless there is a conflict, the features in the embodiments and examples of this application can be combined with each other.

[0047] A typical embodiment of the present invention provides a header device 1, such as Figure 1 、 Figure 2 As shown, it includes a stalk cutting device 11, a clamping device 12, a conveying device and a cutting platform 19.

[0048] Among them, such as Figure 2 As shown, the stalk cutting device 11 is installed on the cutting platform 19 below the front end of the clamping device 12. The stalk cutting device 11 is used to cut corn stalks. The main structure of the cutting device 11 is a rotary cutter, and cutting knives are arranged at intervals on the edge of the rotary cutter.

[0049] Among them, such as Figure 3 As shown, the clamping device 12 is offset from the cutting platform frame 19 and comprises a clamping frame and two clamping mechanisms mounted on the clamping frame. Each clamping mechanism comprises a clamping belt driving pulley 1210 and a clamping belt driven pulley 1203, respectively, mounted at either end of the clamping frame. A clamping belt 1213 is connected between the driving pulley 1210 and the driven pulley 1203. A conveying channel for corn stalks is formed between the inner clamping belts 1213 of the two clamping mechanisms. A clamping belt drive motor 1209 drives the driving pulley 1210 to rotate.

[0050] On this basis, in this embodiment, an ear picking and stem pulling device 15 is provided at the lower rear portion of the clamping frame to separate the corn ears from the corn stalks.

[0051] like Figure 2 and Figure 4 As shown, the ear picking and stem pulling device 15 includes roller groups arranged on both sides below the conveying channel, each roller group includes an ear picking roller 1502 and a stem pulling roller 1507. The stem pulling roller 1507 is located behind the ear picking roller 1502. The surface of the stem pulling roller 1507 has a raised strip structure ( Figure 5 ).

[0052] The ear picking roller 1502 is connected to the driving device, which drives the ear picking roller 1502 to rotate. The ear picking rollers 1502 in the two roller groups rotate in opposite directions. In the same roller group, the stem pulling roller 1507 is connected to the ear picking roller 1502 through a transmission mechanism, and the stem pulling roller 1507 rotates in opposite directions to the ear picking roller 1502.

[0053] The gap between the ear picking rollers 1502 in the two roller sets is smaller than the diameter of the corn ear and larger than the diameter of the corn stalk.

[0054] The conveying device is installed on the upper part of the cutting platform frame 19, and the conveying device is used to collect and transmit the separated corn ears.

[0055] In this embodiment, the purpose of providing the ear picking and stem pulling device 15 is to reduce mechanical damage to corn ears and reduce the working length of the clamping belt 1213, thereby shortening the overall length of the cutting table device 1, so that the overall dimensions of the machine are shortened, the center of gravity distribution is more reasonable, and the operation is more stable and safe.

[0056] According to this embodiment, the clamping device 12 clamps the top of the corn stalk with the corn cob, and the stalk cutting device 11 cuts off the bottom of the corn stalk. The cut corn stalk with the corn cob is then transported backward within the conveying channel by the clamping belt 1213 and into the ear picking and stalk pulling device 15. Because the diameter of the corn stalk is smaller than the gap between the two ear picking rollers 1502, while the diameter of the corn cob is larger than the gap between the two ear picking rollers 1502, the ear picking rollers 1502 block the passage of the corn cob. The stalk pulling roller 1507 continues to pull the corn stalk backward, and the corn cob separates from the corn stalk and falls into the conveying device below. The corn stalk separated from the corn cob is then discharged by the stalk pulling roller 1507 and falls into the field.

[0057] In order to ensure that the remaining corn stalks after picking the ears can be discharged smoothly, the stalk cutting device 11, the clamping device 12, and the ear picking and stem pulling device 15 can be installed offset, so that there is no other interference in the process of discharging the remaining corn stalks after picking the ears.

[0058] In the above process, when the corn stalk enters between the two stem-pulling rollers 1507, the relatively rotating stem-pulling rollers 1507 clamp the corn stalk and pull it away from the ear-picking rollers 1502, while separating the corn cob from the corn stalk. During the ear-picking process, the head of the corn stalk first enters between the two stem-pulling rollers 1507, while the corn cob is blocked by the ear-picking rollers 1502. This ear-picking process is similar to the lever principle of manual ear-picking, with little force applied. Therefore, the force acting on the corn cob is small, achieving the purpose of low-loss ear-picking. At the same time, because the stem-pulling rollers 1507 are arranged close to the ear-picking rollers 1502, the stroke required during the ear-picking process is shorter, which also shortens the overall length of the cutting platform device 1.

[0059] In a preferred embodiment, the clamping frame includes a fixed clamping frame 1206 and a movable clamping frame 1207 .

[0060] like Figure 3 As shown, the fixed clamping frame 1206 includes a fixed clamping frame crossbeam 12061 and a fixed connecting bracket 12062. One or more fixed connecting brackets 12062 are fixedly arranged on the outside of the fixed clamping frame crossbeam 12061. The bottom of the fixed connecting bracket 12062 is fixedly connected to the cutting platform frame 19 through a column 1214. The movable clamping frame 1207 includes a movable clamping frame crossbeam 12071 and a movable connecting bracket 12072. One or more movable connecting brackets 12072 are fixedly arranged on the outside of the movable clamping frame crossbeam 12071.

[0061] The front end of the fixed connection bracket 12062 is inserted into the front end of the movable connection bracket 12072. A hollow tube is set at the front end of the movable connection bracket 12072, and positioning holes are opened at intervals on the hollow tube. After the front end of the fixed connection bracket 12062 is inserted into the hollow tube, a locking bolt is installed in the positioning hole.

[0062] The gap width between the clamping belts 1213 on both sides of the conveying channel can be adjusted by adjusting the matching position between the movable clamping frame 1207 and the fixed clamping frame 1206.

[0063] In a relatively specific embodiment, Figure 3 As shown, the clamping belt driving wheel 1210 and the clamping belt driven wheel 1203 are respectively installed at both ends of the fixed clamping frame 1206 and both ends of the movable clamping frame 1207.

[0064] For example, the two clamping belt driving wheels 1210 are respectively installed at the ends of the fixed connecting bracket 12062 and the movable connecting bracket 12072, and the two clamping belt passive wheels 1203 are respectively installed at the front ends of the fixed clamping frame beam 12061 and the movable clamping frame beam 12071.

[0065] Several clamping belt support wheels 1208 are evenly distributed between the clamping belt driving wheel 1210 and the clamping belt passive wheel 1203, and the clamping belt support wheels 1208 are installed on the fixed clamping frame beam 12061 and the movable clamping frame beam 12071; the clamping belt driving wheel 1210, the clamping belt passive wheel 1203, and the clamping belt support wheel 1208 are wrapped and connected by the clamping belt 1213.

[0066] Preferably, the clamping belt support wheels 1208 on both sides are evenly distributed and staggered to support the clamping belt 1213.

[0067] In order to ensure that the corn stalks are discharged smoothly at the end of the conveying channel formed by the clamping belt 1213, a forced stalk remover 1211 is provided below the clamping belt driving wheel 1210, and the clamping belt driving motor 1209 drives the clamping belt driving wheel 1210 and the forced stalk remover 1211 to rotate in the same direction.

[0068] The rear parts of the fixed clamping frame 1206 and the movable clamping frame 1207 are respectively provided with ear picking and stem pulling device connecting seats 1212 connected to the ear picking and stem pulling device 15.

[0069] In the clamping device 12, the tensioning degree of the clamping belt 1213 is jointly adjusted by the first tensioning device 1202 and the second tensioning device 1205. The purpose of setting the second tensioning device 1205 is to avoid the situation where the adjustment range of the first tensioning device 1205 is too large, which drives the clamping belt passive wheel 1203 to move and causes the length of the conveying channel formed by the clamping belt 1213 to become shorter.

[0070] The first tensioning device 1202 is located at the front end of the fixed clamping frame 1206 or the movable clamping frame 1207. Figure 6As shown, the first tensioning device 1202 includes a first tensioning rod 12021 , a first tensioning adjustment nut 12022 , a first tensioning spring 12023 , a first tensioning fixing sleeve 12024 , a first tensioning fixing plate 12025 and a first tensioning movable tube 12026 .

[0071] like Figure 6 As shown, two first tensioning fixed plates 12025 are respectively fixedly connected to the front end of the fixed clamping frame crossbeam 12061 or the front end of the movable clamping frame crossbeam 12071. A through hole is formed in the middle of the first tensioning fixed plate 12025. The top of one end of the first tensioning fixed sleeve 12024 is fixedly connected to the bottom of the first tensioning fixed plate 12025. One end of the first tensioning movable tube 12026 is connected to the shaft of the clamping belt passive pulley 1203. A portion of the first tensioning movable tube 12026 is located within the first tensioning fixed sleeve 12024 and can slide relative to it. One end of the first tensioning rod 12021 passes through the through hole of the first tensioning fixed plate 12025 and is fixedly connected to the upper baffle of the first tensioning movable tube 12026. A first tensioning adjustment nut 12022 is provided at the other end of the first tensioning rod 12021 , and a first tensioning spring 12023 is provided between the first tensioning adjustment nut 12022 and the first tensioning fixing plate 12025 and is sleeved on the outside of the first tensioning rod 12021 .

[0072] The second tensioning device 1205 is located on the fixed clamping frame 1206 or the movable clamping frame 1207 behind the first tensioning device 1202. The second tensioning device 1205 includes a second tensioning movable tube 12051, a second tensioning fixed plate 12052, a second tensioning fixed sleeve 12053, a second tensioning spring 12054, a second tensioning adjustment nut 12055, and a second tensioning rod 12056.

[0073] like Figure 6 As shown, two second tensioning fixed sleeves 12053 are fixedly connected to the fixed clamping frame crossbeam 12061 or the movable clamping frame crossbeam 12071, respectively. The top of one end of the second tensioning fixed sleeve 12053 is fixedly connected to the second tensioning fixed plate 12052, which has a through hole in the middle. One end of the second tensioning movable tube 12051 is connected to the shaft of the clamping belt support wheel 1208. A portion of the second tensioning movable tube 12051 is located within the second tensioning fixed sleeve 12053 and can slide relative to it. One end of the second tensioning rod 12056 passes through the through hole of the second tensioning fixing plate 12052 and is fixedly connected to the baffle on the upper part of the second tensioning movable tube 12051. The other end of the second tensioning rod 12056 is provided with a second tensioning adjustment nut 12055. A second tensioning spring 12054 is provided between the second tensioning adjustment nut 12055 and the second tensioning fixing plate 12052, which is sleeved on the outside of the second tensioning rod 12056.

[0074] In another preferred embodiment, Figure 4 As shown, the top end of the ear-picking roller 1502 is connected to the ear-picking roller top seat 1501 via a bearing, and the bottom end of the ear-picking roller 1502 is connected to the rotating shaft of the ear-picking drive motor 1511 serving as a drive device. The ear-picking roller top seat 1501 is fixedly connected to the clamping frame, that is, the ear-picking and stem-pulling device connecting seat 1212 is respectively provided on the fixed clamping frame crossbeam 12061 and the movable clamping frame crossbeam 12071, and the ear-picking roller top seat 1501 is fixedly connected to the ear-picking and stem-pulling device connecting seat 1212.

[0075] The ear picking drive motor 1511 is fixedly connected to the ear picking roller base 1512 , and the ear picking roller base 1512 is connected to the cutting platform frame 19 through the ear picking device fixing frame 1513 .

[0076] The specific gap between the two ear picking rollers 1502 can be adjusted according to the actual crop growth through the ear picking roller top seat 1501 and the ear picking roller base 1512.

[0077] In another preferred embodiment, the transmission mechanism includes an ear picking roller gear 1503, a transition gear 1504, a transition sprocket 1505 and a stem pulling roller sprocket 1506.

[0078] A tensioning seat 1508 is hinged at each end of the ear-picking roller 1502, and three universal bearing seats 1509 distributed in a triangle are fixed on each tensioning seat 1508. Among them, the first universal bearing seat 1509 is concentrically connected to the ear-picking roller 1502, and the ear-picking roller gear 1503 is coaxially fixed on the top of the ear-picking roller 1502; the second universal bearing seat 1509 is connected to the coaxially installed transition gear 1504 and the transition sprocket 1505, and the third universal bearing seat is connected to the coaxially installed stem pulling roller sprocket 1506 and the stem pulling roller 1507; the ear-picking roller gear 1503 is meshed with the transition gear 1504, and the transition sprocket 1505 is connected to the stem pulling roller sprocket 1506 through a transmission chain.

[0079] The transmission mechanism principle is explained below using one roller group as an example. The ear picking drive motor 1511 drives the ear picking roller 1502 to rotate counterclockwise. The ear picking roller gear 1503, coaxially fixed to the ear picking roller 1502, drives the meshing intermediate gear 1504 to rotate in the opposite direction. The intermediate sprocket 1505 rotates synchronously with the intermediate gear 1504 coaxially. The intermediate sprocket 1505 drives the stalk pulling roller sprocket 1506 and the coaxial stalk pulling roller 1507 via a chain drive to rotate in the same direction, ultimately achieving the goal of the ear picking roller 1502 and the stalk pulling roller 1507 rotating in opposite directions. The purpose of using a multi-stage transmission is to ensure that the diameters of the ear picking roller gear 1503 and the stalk pulling roller sprocket 1506 cannot be larger than those of the ear picking roller 1502 and the stalk pulling roller 1507, respectively, while meeting the rotation direction requirements. This prevents the ear picking roller gear 1503 and the stalk pulling roller sprocket 1506 from interfering with the passage of corn stalks.

[0080] Based on the above embodiments, Figure 4 As shown, the ear picking and stem pulling device 15 also includes a stem pulling roller swing mechanism, and the stem pulling roller swing structure includes a ball head tensioning rod 1514, a rotating seat 1515 and a stem pulling tensioning spring 1516;

[0081] The two tensioning seats 1508 at both ends of the ear-picking roller 1502 are rigidly connected into one through a connecting rod 1510. The bottom end of the connecting rod 1510 is hinged to the ball end of the ball-head tensioning rod 1514. The other end of the ball-head tensioning rod 1514 is slidably connected to the hole opened in the rotating seat 1515. The lower end of the rotating seat 1515 is hinged to the ear-picking device fixing frame 1513. A stem-pulling tensioning spring 1516 is sleeved on the ball-head tensioning rod 1514. The two ends of the stem-pulling tensioning spring 1516 are respectively supported on the inner side of the rotating seat 1515 and the inner side of the ball end of the ball-head tensioning rod 1514.

[0082] Furthermore, a stalk tensioning force adjustment nut 1517 is disposed between the inner side of the ball head of the ball head tensioning rod 1514 and the stalk tensioning spring 1516 to adjust the compressive force on the stalk tensioning spring 1516. As the stalk tensioning force adjustment nut 1517 approaches the rotating seat 1515, the stalk tensioning spring 1516 is gradually compressed. As the reverse elastic force of the stalk tensioning spring 1516 increases, the bite force between the two stalk tensioning rollers 1507 increases. When a corn stalk enters between the two stalk tensioning rollers 1507, the two stalk tensioning rollers 1507 clamp the corn stalk with a certain bite force. Conversely, the reverse elastic force of the stalk tensioning spring 1516 decreases, reducing the bite force between the two stalk tensioning rollers 1507. Adjustment can be made based on actual conditions during use.

[0083] The ball head tensioning rod 1514 can slide in the hole set in the rotating seat 1515, thereby driving the stem pulling roller 1507 to swing around the ear picking roller 1502. After the stem pulling roller 1507 swings under the action of external force, it can be reset under the action of the stem pulling tensioning spring 1516.

[0084] The two stem pulling rollers 1507 always remain close to each other due to the action of the stem pulling tensioning spring 1516. At the same time, since the stem pulling rollers 1507 have a raised structure, when the corn stalks enter between the two stem pulling rollers 1507, the relatively rotating stem pulling rollers 1507 clamp the corn stalks and pull them away from the ear picking roller 1502, while separating the corn ears from the corn stalks. The biting force of the two stem pulling rollers 1507 on the corn stalks can be adjusted by the stem pulling tensioning spring 1516.

[0085] In addition, if Figure 3 As shown, in order to allow the corn stalks to smoothly enter between the clamping belts 1213, the front ends of the fixed clamping frame beam 12061 and the movable clamping frame beam 12071 are both provided with a straw divider 1201, and a straw disc 1204 is coaxially installed on the top of the clamping belt passive wheel 1203, which together play a guiding role for the corn stalks.

[0086] In a relatively specific embodiment, the conveying device includes a transverse conveying device 13 and a longitudinal conveying device 14 .

[0087] like Figure 7 As shown, the transverse conveying device 13 includes a transverse conveying device passive shaft 1301, a transverse conveying belt 1302, and a transverse conveying device driving shaft 1303, and the transverse conveying belt 1302 is connected between the transverse conveying device passive shaft 1301 and the transverse conveying device driving shaft 1303;

[0088] The longitudinal conveying device 14 includes a longitudinal conveying device driven shaft 1401, a longitudinal conveying belt 1403, and a longitudinal conveying device driving shaft 1402. The longitudinal conveying belt 1403 is connected between the longitudinal conveying device driven shaft 1401 and the longitudinal conveying device driving shaft 1402. The transverse conveying belt 1302 is perpendicular to the longitudinal conveying belt 1403.

[0089] Several guard plates 1304 are provided around the transverse conveying belt 1302 and the longitudinal conveying belt 1403 except for the discharge port to prevent corn ears from falling.

[0090] Another typical embodiment of the present invention provides a self-propelled sweet and sticky corn fresh ear harvester, including the above-mentioned cutting platform device 1, corn ear elevator 2, corn stalk crushing device 3, walking device 4, driving platform 5, debris removal device 6, diesel engine assembly 7, fresh ear chute 8, chassis 9 and corn ear box 10.

[0091] The cutting platform device 1, the corn cob elevator 2, the corn stalk crushing device 3, the traveling device 4, the driving platform 5, the diesel engine assembly 7 and the corn cob box 10 are all arranged on the chassis 9.

[0092] The header device 1 is arranged in front of the chassis 9 for picking corn ears. The header device 1 is connected to the chassis 9 through a header arm 17 and a header lifting cylinder 18.

[0093] The corn stalk crushing device 3 is arranged below the front end of the harvesting platform device 1 and is used to crush the corn stalks left after the ears are picked.

[0094] The corn cob box 10 is arranged above the rear portion of the chassis 9 and is used to collect fresh corn ears picked by the harvesting device 1 .

[0095] The corncob elevator 2 is located on the front side of the chassis 9 and is used to transport the corncobs picked from the harvesting platform 1 to the rear. The fresh corncob chute 8 is located between the end of the corncob elevator 2 and the corncob box 10 and is used to smoothly slide the corncobs in the corncob elevator 2 into the corncob box 10 to prevent them from being missed.

[0096] The impurity removal device 6 is arranged above the middle of the corn ear elevator 2 and is used to remove impurities such as leaves entrained in the fresh ears during the transportation process.

[0097] The main structure of the traveling device 4 is the wheel, which is arranged below the chassis 9 and is used for the whole machine to travel.

[0098] The operating platform 5 is located at the other side of the front of the chassis 9 and is used to operate the entire machine.

[0099] The diesel engine assembly 7 is located behind the driving platform 5 and is used to provide power for the entire machine.

[0100] During operation, the clamping device 12 in the cutting platform device 1 clamps the top of the corn stalk with the corn cob, and the stalk cutting device 11 cuts off the bottom of the corn stalk. Then the clamping device 12 conveys the cut corn stalk with the corn cob backward into the cob picking and stalk pulling device 15. The cob picking roller 1502 blocks the passage of the corn cob, and the stalk pulling roller 1507 continues to pull the corn stalk backward. The corn cob is separated from the corn stalk and falls into the transverse conveyor belt 13, while the corn stalk is discharged by the stalk pulling roller 1507 and falls into the field. After passing through the transverse conveyor belt 13, the corn cob enters the longitudinal conveyor belt 14, and then enters the corn cob elevator 2. In the process of transporting the corn cob by the corn cob elevator 2, the impurities entrained in the corn cob are forcibly discharged by the impurity removal device 6. The corn cob is then discharged through the end of the corn cob elevator 2 and then enters the fresh cob chute 8, and finally enters the corn cob box 10 through the end of the fresh cob chute 8, completing the entire harvesting process.

[0101] The power transmission routes of each component are as follows: the diesel engine assembly 7 transmits power to the header main shaft 101, and the header main shaft 101 divides the power into two transmission routes, one of which is transmitted to the corn stalk crushing device drive shaft 301 in the form of chain transmission, and the other is transmitted to the header transition shaft 103 in the form of gear transmission to realize transmission reversal, and then the header transition shaft 103 transmits the reversed power to the longitudinal conveying device driving shaft 1402 and the hydraulic station power shaft 1601 of the hydraulic station 16 in the form of chain transmission at the same time, the longitudinal conveying device driving shaft 1402 transmits power to the right-angle transmission box 102 in the form of chain transmission, and then the right-angle transmission box 102 changes the transmission direction and transmits it to the transverse conveying device driving shaft 1303 in the form of chain transmission, thereby realizing the operation of each working component.

[0102] The scope of protection claimed by the present invention is not limited to the above specific embodiments. For those skilled in the art, the present invention may have various variations and modifications. Any modifications, improvements and equivalent substitutions made within the concept and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cutting platform device, comprising a stalk cutting device (11), a clamping device (12), a conveying device and a cutting platform frame (19), wherein the conveying device is mounted on the upper part of the cutting platform frame (19), the clamping device (12) is offset and mounted on one side of the cutting platform frame (19), and the stalk cutting device (11) is mounted on the cutting platform frame (19) below the front end of the clamping device (12), characterized in that: The clamping device (12) comprises a clamping frame and two sets of clamping mechanisms arranged on the clamping frame, each set of clamping structures comprises a clamping belt driving wheel (1210) and a clamping belt passive wheel (1203) respectively arranged at two ends of the clamping frame, a clamping belt (1213) is connected between the clamping belt driving wheel (1210) and the clamping belt passive wheel (1203); a conveying channel for corn stalks is formed between the inner clamping belts (1213) of the two sets of clamping mechanisms; An ear picking and stem pulling device (15) is provided below the rear portion of the clamping frame. The ear picking and stem pulling device (15) comprises roller groups respectively arranged on both sides below the conveying channel, each roller group comprising an ear picking roller (1502) and a stem pulling roller (1507). The ear picking roller (1502) and the stem pulling roller (1507) are both vertical rollers, and the stem pulling roller (1507) is located behind the ear picking roller (1502). The ear picking roller (1502) is connected to a driving device, and the driving device drives the ear picking roller (1502) to rotate. The ear picking rollers (1502) in the two roller groups rotate in opposite directions. In the same roller group, the stem pulling roller (1507) is connected to the ear picking roller (1502) via a transmission mechanism, and the stem pulling roller (1507) and the ear picking roller (1502) rotate in opposite directions. During the ear picking process, the head of the corn stalk first enters between the two stem pulling rollers (1507), and the corn cob is blocked by the ear picking roller (1502).

2. The header device according to claim 1, characterized in that: The clamping frame comprises a fixed clamping frame (1206) and a movable clamping frame (1207); The fixed clamping frame (1206) includes a fixed clamping frame crossbeam (12061) and a fixed connecting bracket (12062), one or more fixed connecting brackets (12062) are fixedly arranged on the outside of the fixed clamping frame crossbeam (12061), and the bottom of the fixed connecting bracket (12062) is fixedly connected to the cutting platform frame (19) through a column (1214); the movable clamping frame (1207) includes a movable clamping frame crossbeam (12071) and a movable connecting bracket (12072), one or more movable connecting brackets (12072) are fixedly arranged on the outside of the movable clamping frame crossbeam (12071); the front end of the fixed connecting bracket (12062) is inserted into the front end of the movable connecting bracket (12072).

3. The header device according to claim 2, characterized in that: The clamping belt driving wheel (1210) and the clamping belt passive wheel (1203) are respectively installed at both ends of the fixed clamping frame (1206) and the two ends of the movable clamping frame (1207); a plurality of clamping belt support wheels (1208) are evenly distributed between the clamping belt driving wheel (1210) and the clamping belt passive wheel (1203), and the clamping belt support wheels (1208) are installed on the fixed clamping frame crossbeam (12061) and the movable clamping frame crossbeam (12071); the clamping belt driving wheel (1210), the clamping belt passive wheel (1203), and the clamping belt support wheel (1208) are wrapped and connected by the clamping belt (1213).

4. The header device according to claim 3, characterized in that: The top end of the ear-picking roller (1502) is connected to the ear-picking roller top seat (1501) via a bearing, and the bottom end of the ear-picking roller (1502) is connected to the rotating shaft of an ear-picking drive motor (1511) serving as a driving device; the ear-picking roller top seat (1501) is fixedly connected to the clamping frame, the ear-picking drive motor (1511) is fixedly connected to the ear-picking roller base (1512), and the ear-picking roller base (1512) is connected to the cutting platform frame (19) via the ear-picking device fixing frame (1513).

5. The header device according to claim 4, characterized in that: The transmission mechanism comprises an ear picking roller gear (1503), a transition gear (1504), a transition sprocket (1505) and a stem pulling roller sprocket (1506); A tensioning seat (1508) is hinged at each end of the ear picking roller (1502), and three universal bearing seats (1509) distributed in a triangular shape are fixed on each tensioning seat (1508), wherein the first universal bearing seat (1509) is concentrically connected to the ear picking roller (1502), and an ear picking roller gear (1503) is coaxially fixed to the top of the ear picking roller (1502); the second universal bearing seat (1509) is connected to the coaxially mounted transition gear (1504) and transition sprocket (1505), and the third universal bearing seat is connected to the coaxially mounted stem pulling roller sprocket (1506) and the stem pulling roller (1507); the ear picking roller gear (1503) is meshed with the transition gear (1504), and the transition sprocket (1505) is connected to the stem pulling roller sprocket (1506) via a transmission chain.

6. The header device according to claim 5, characterized in that: It comprises a stem pulling roller swinging mechanism, wherein the stem pulling roller swinging structure comprises a ball head tensioning rod (1514), a rotating seat (1515) and a stem pulling tensioning spring (1516); The two tensioning seats (1508) at both ends of the ear-picking roller (1502) are rigidly connected into one body through a connecting rod (1510); the bottom end of the connecting rod (1510) is hinged to the ball end of the ball-head tensioning rod (1514); the other end of the ball-head tensioning rod (1514) is slidably connected to a hole provided in a rotating seat (1515); the lower end of the rotating seat (1515) is hinged to an ear-picking device fixing frame (1513); a stem-pulling tensioning spring (1516) is sleeved on the ball-head tensioning rod (1514); and the two ends of the stem-pulling tensioning spring (1516) are supported on the inner side of the rotating seat (1515) and the inner side of the ball end of the ball-head tensioning rod (1514), respectively.

7. The header device according to claim 2 or 6, characterized in that: A reed disc (1204) is coaxially mounted on the top of the clamping belt passive wheel (1203), and a reed divider (1201) is provided at the front ends of the fixed clamping frame crossbeam (12061) and the movable clamping frame crossbeam (12071).

8. The header device according to claim 7, characterized in that: The conveying device includes a transverse conveying device (13) and a longitudinal conveying device (14); The transverse conveying device (13) comprises a transverse conveying device passive shaft (1301), a transverse conveying belt (1302), and a transverse conveying device active shaft (1303), wherein the transverse conveying belt (1302) is connected between the transverse conveying device passive shaft (1301) and the transverse conveying device active shaft (1303); The longitudinal conveying device (14) comprises a longitudinal conveying device passive shaft (1401), a longitudinal conveying belt (1403), and a longitudinal conveying device driving shaft (1402), wherein the longitudinal conveying belt (1403) is connected between the longitudinal conveying device passive shaft (1401) and the longitudinal conveying device driving shaft (1402); The transverse conveying belt (1302) and the longitudinal conveying belt (1403) are arranged perpendicularly.

9. A self-propelled sweet and sticky corn fresh ear harvester, characterized by: It comprises the header device (1) according to any one of claims 1 to 8.

10. The self-propelled sweet and glutinous corn fresh ear harvester according to claim 9, characterized in that: It includes a corn cob elevator (2), a corn stalk crushing device (3), a walking device (4), a driving platform (5), a debris removal device (6), a diesel engine assembly (7), a fresh corn cob chute (8), a chassis (9) and a corn cob box (10); The corn cob elevator (2), the corn stalk crushing device (3), the traveling device (4), the driving platform (5), the diesel engine assembly (7) and the corn cob box (10) are all arranged on the chassis (9); The cutting platform device (1) is arranged in front of the chassis (9), and the corn stalk crushing device (3) is arranged below the front end of the cutting platform device (1); the corn cob box (10) is arranged above the rear of the chassis (9), the corn cob elevator (2) is arranged on one side of the front of the chassis (9), the fresh cob chute (8) is arranged between the end of the corn cob elevator (2) and the corn cob box (10), and the impurity removal device (6) is arranged above the middle of the corn cob elevator (2). The running device (4) is arranged below the chassis (9), the driving platform (5) is located on the other side of the front of the chassis (9), and the diesel engine assembly (7) is located behind the driving platform (5).

Images