A self-propelled corn harvester for harvesting both seeds and stalks

Abstract

The present invention relates to the field of agricultural machinery and provides a self-propelled corn harvester for both seed and stalk harvesting, comprising: an ear picking frame mounted at the front of the corn harvester body; a straw pulling assembly mounted within the ear picking frame for clamping, pulling, and separating the corn stalks and ears; an assembly mounted on the top of the ear picking frame and serving as an installation base; a plurality of positioning sleeves equidistantly mounted on the assembly assembly, each having a through hole in the middle; a trapezoidal opening frame having the same number of positioning sleeves as the number of positioning sleeves and each mounted at the middle of the front end of the positioning sleeve; a spring column slidably mounted on the left and right sides of the front of the trapezoidal opening frame; and two oblique clamping plates mounted on the inward end of the spring column. When in use, the present invention achieves straightening of corn stalks bent in different directions, improving the smoothness and overall efficiency of harvesting and ensuring that the stalks can smoothly pass through the cutting operation.

Description

Technical Field

[0001] The present invention relates to the field of agricultural machinery, and more particularly to a self-propelled corn harvester for harvesting both seeds and stalks. Background Art

[0002] A corn harvester is a type of agricultural machinery used when corn is ripe. It can complete multiple operations such as picking corn ears, stacking them, and returning the stalks to the field in one go. Among them, the self-propelled seed-stalk and stalk-harvesting corn harvester is a type of machinery that integrates the two major functions of stalk harvesting and ear harvesting. It can efficiently complete the stalk and ear harvesting operations in one go, significantly improving the efficiency of corn harvesting.

[0003] The corn harvester currently uses a corn ear picking device for corn collection, which is generally a roller-type corn ear picking device. The working principle of the ear picking device is mainly to clamp and pull the corn stalks through the ear picking rollers rotating in opposite directions to separate the corn ears from the stalks.

[0004] During the actual corn harvesting process, there are often bent corn stalks in the corn fields, and the bending directions are different. Under the clamping and pulling action of the ear picking device, these stalks are more likely to break at the bent parts, causing the stalks to break before being completely removed. Together with the pulled corn ears, they enter the subsequent processing process of the harvester, increasing the impurity content and increasing the burden of the subsequent processing steps.

[0005] To this end, the present application proposes a self-propelled corn harvester for harvesting both seeds and stalks to solve the above problems. Summary of the Invention

[0006] Technical problem to be solved: In response to the problems existing in the prior art, the purpose of the present invention is to provide a self-propelled corn harvester for harvesting both seeds and stalks, which solves the problem that during the corn harvesting process, corn stalks bent in different directions are easily broken by the action of the ear picking device, resulting in an increase in impurities and an increase in the burden of subsequent processing steps.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a self-propelled seed and stalk corn harvester, comprising: an ear picking stand, installed at the front position of the corn harvester body; a rice pulling component, installed in the ear picking stand, for clamping, pulling and separating the stalks and ears of corn; an assembly component, installed on the top of the ear picking stand, for serving as an installation base point; a plurality of positioning sleeves, which are equidistantly installed on the assembly component, and the middle part of the positioning sleeves are all provided with through holes; a trapezoidal opening frame, the number of which is equal to that of the positioning sleeves, and all are installed at the middle part of the front end of the positioning sleeve; a spring column, which is respectively slidably installed on the trapezoidal opening frame The left and right sides of the front of the opening frame; there are two oblique splints, both installed at the inward end of the spring column, and the oblique angle of the oblique splint is 25 to 30 degrees; a plurality of matching columns are equidistantly installed on the inward side of the oblique splint, and the middle parts of the plurality of matching columns are rotatably connected to a plurality of displacement rollers, and the outer layers of the displacement rollers are provided with wear-resistant layers; the top ends of the oblique splints are vertically installed with front stroking components, and the front stroking components are triggered when they come into contact with the bent part of the corn stalks in the front range, and the rear stroking components are installed at the rear end of the top end of the trapezoidal opening frame, and the rear stroking components are triggered when they come into contact with the bent part of the corn stalks in the rear range.

[0008] In a new embodiment, the plucking assembly includes: a plurality of ear-pulling leakage plates, which are equidistantly installed in the middle of the ear-pulling platform frame, and adjacent ear-pulling leakage plates are installed relative to each other; a plucking chain, which is installed on the left and right sides of the top of the ear-pulling leakage plate; an ear-pulling roller, which is rotatably installed on the left and right sides of the bottom end of the ear-pulling leakage plate, and the rotation direction of the ear-pulling rollers on the left and right sides is inward; a cutting knife is provided at the lower part of the ear-pulling roller and is installed on one side of the bottom of the ear-pulling leakage plate; a plucking platform, which is installed between two adjacent ear-pulling leakage plates.

[0009] In a new embodiment, the assembly components include: two mounting plates, which are respectively installed on the left and right sides of the top of the ear picking stand; a long connecting rod, which is arranged between the two mounting plates, and both ends of the long connecting rod are connected to the mounting plates by bolts; and multiple groups of threaded holes, each group has two holes, which are equidistantly opened on the long connecting rod.

[0010] In a new embodiment, the assembly components include: two mounting plates, which are respectively installed on the left and right sides of the top of the ear picking stand; a long connecting rod, which is arranged between the two mounting plates, and both ends of the long connecting rod are connected to the mounting plates by bolts; and multiple groups of threaded holes, each group has two holes, which are equidistantly opened on the long connecting rod.

[0011] In a new embodiment, the rear-pushing assembly includes: a positioning plate, installed at the rear middle part of the top end of the trapezoidal opening frame; a movable column, slidably installed in the middle part of the positioning plate; an expansion plate, installed at the front end of the movable column, and located at the top position of the oblique splint; an extrusion spring, sleeved on the outside of the movable column, one end connected to the front end of the positioning plate, and the other end connected to the rear part of the expansion plate; two oblique wheels are provided, which are rotatably installed on the left and right sides of the middle part of the expansion plate.

[0012] In a new embodiment, a shielding plate is fixedly installed on the top of the positioning plate, and a metal plate is installed on the top of the shielding plate.

[0013] In a new embodiment, the front ends of the oblique splints are fixedly mounted with transverse straight plates, and the top front portions of the transverse straight plates are rotatably connected with guide wheels.

[0014] In a new embodiment, the trapezoidal opening frame is arranged at the top middle rear part of the ear plucking middle leakage plate, and the trapezoidal opening frame and the ear plucking middle leakage plate are arranged with their axis centers aligned.

[0015] Beneficial effect: Compared with the existing technology, the advantages of the present invention are: the corn stalks are first clamped and transported by the ear pulling plate and the grain pulling chain, and then enter the displacement roller area between the oblique clamps on both sides through the guide wheel for elastic clamping. In the process of the ear pulling roller pulling the stalks backward, the displacement rollers in the oblique clamps not only provide long-distance stable clamping, but also straighten the bent parts on the left and right sides of the stalks. The application of the wear-resistant layer thereon reduces the risk of friction fracture and reduces the generation of impurities.

[0016] The assembly components use a mounting plate to ensure stable installation with the ear picking stand. The flexible adjustment capability of the long connecting rod provides the trapezoidal open frame with an installation point that can adapt to various environments. The setting of the threaded holes further enhances the convenience of installation and enables quick fixation. The overall design simplifies the installation process, allowing the trapezoidal open frame to be quickly and accurately installed to the designated position.

[0017] By setting up an inclined plate, a vertical shaft, a rolling wheel and a front guide wheel, the corn stalks can be effectively guided to smoothly enter the rear clamping area of ​​the inclined clamping plate. The rolling combing effect of the rolling wheel can straighten the bent stalks in the front, reduce breakage and damage, improve combing efficiency, reduce blockage and entanglement problems, and improve overall harvesting efficiency.

[0018] Through the movable column, extrusion spring, expansion plate and oblique wheel, in cooperation with the front straightening assembly, the straightening operation of the bent part at the rear of the corn stalk is achieved. The rolling straightening effect of the oblique wheel reduces the damage to the stalk. The movable column and extrusion spring are flexibly adjusted according to the diameter of the stalk, making it suitable for stalks of different diameters, improving the smoothness and overall efficiency of harvesting, and ensuring that the stalk can pass through the cutting operation smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the corn harvester of the present invention without the assembly components installed.

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the corn harvester of the present invention without the assembly components installed from another perspective.

[0021] Figure 3 This is a front view of the corn harvester of the present invention without the assembly components installed.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the ear picking stand of the present invention.

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of the ear picking stand of the present invention from another perspective.

[0024] Figure 6 It is a schematic diagram of the internal structure of the weeding platform of the present invention.

[0025] Figure 7 It is a schematic structural diagram of the pulling out component of the present invention.

[0026] Figure 8 It is a schematic diagram of the position structure of the ear pulling roller of the present invention.

[0027] Figure 9 It is a schematic diagram of the position structure of the pulling component and the trapezoidal opening frame of the present invention.

[0028] Figure 10 It is a schematic diagram of the assembly component structure of the present invention.

[0029] Figure 11 It is a schematic diagram of the long connecting rod structure of the present invention.

[0030] Figure 12 It is a schematic structural diagram of the trapezoidal open frame of the present invention.

[0031] Figure 13 It is a schematic structural diagram of the front stroking component of the present invention.

[0032] Figure 14 It is a schematic structural diagram of the rear-stroking component of the present invention.

[0033] Figure 15 It is a structural schematic diagram of the front and rear stroking components of the present invention in their operating states.

[0034] Figure 16 This is a schematic diagram of the working state of the front stroking component of the present invention.

[0035] Figure 17 This is a schematic diagram of the working state of the rear-stroking component of the present invention.

[0036] The accompanying drawings are marked as follows: 1. Ear picking stand; 2. Rice pulling assembly; 201. Ear pulling middle leakage plate; 202. Rice pulling chain; 203. Ear pulling roller; 204. Cutting knife; 205. Rice pulling stand; 3. Assembly assembly; 301. Mounting plate; 302. Long connecting rod; 303. Threaded hole; 4. Positioning sleeve; 5. Through hole; 6. Trapezoidal opening frame; 7. Spring column; 8. Oblique splint; 9. Mounting column; 10. Displacement roller Column; 11. Wear-resistant layer; 12. Front stroking assembly; 1201. Oblique plate; 1202. Vertical shaft; 1203. Rolling wheel; 1204. Front guide wheel; 13. Rear stroking assembly; 1301. Positioning plate; 1302. Movable column; 1303. Expanding plate; 1304. Extrusion spring; 1305. Oblique wheel; 1306. Shielding plate; 1307. Metal plate; 14. Horizontal straight plate; 15. Guide wheel. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] The embodiment of the present application provides a self-propelled corn harvester for both seeds and stalks, which solves the problem that corn stalks bent in different directions are easily broken by the ear picking device during corn harvesting, resulting in an increase in impurities and an increase in the burden of subsequent processing steps. When in use, the corn stalks bent in different directions can be straightened, thereby improving the smoothness and overall efficiency of harvesting and ensuring that the stalks can pass through the cutting operation smoothly.

[0039] The technical solution in the embodiments of the present application is to solve the above technical problems, and the overall idea is as follows.

[0040] Example 1: Please refer to Figure 4-Figure 17A self-propelled corn harvester for both seed and stalk harvesting comprises: an ear picking stand 1, mounted at the front of the corn harvester body; a rice pulling assembly 2, mounted in the ear picking stand 1, for clamping, pulling and separating the stalks and ears of corn; an assembly assembly 3, mounted on the top of the ear picking stand 1, for serving as an installation base point; a plurality of positioning sleeves 4, equidistantly mounted on the assembly assembly 3, and a through hole 5 is provided in the middle of each positioning sleeve 4; a trapezoidal opening frame 6, the number of which is equal to that of the positioning sleeves 4, and each is mounted in the middle of the front end of the positioning sleeve 4; a spring column 7, respectively slidably mounted on the left and right sides of the front of the trapezoidal opening frame 6 ; There are two oblique splints 8, both installed at the inward end of the spring column 7, and the oblique angle of the oblique splint 8 is 25 to 30 degrees; a plurality of mounting columns 9 are equidistantly installed on the inward side of the oblique splint 8, and the middle parts of the plurality of mounting columns 9 are rotatably connected to a plurality of displacement rollers 10, and the outer layers of the displacement rollers 10 are provided with wear-resistant layers 11; a front stroking component 12 is vertically installed at the top end of the oblique splint 8, and the front stroking component 12 is triggered when it contacts the bent part of the corn stalk in the front range, and a rear stroking component 13 is installed at the rear end of the top end of the trapezoidal opening frame 6, and the rear stroking component 13 is triggered when it contacts the bent part of the corn stalk in the rear range.

[0041] In this example, see Figure 4-Figure 17 As shown, first, the assembly component 3 is installed on the top of the ear picking stand 1, and multiple trapezoidal opening frames 6 are fixed through the assembly component 3, and are aligned with the center of the ear pulling middle leakage plate 201 in the rice pulling component 2. When the corn harvester starts working, it will drive the ear picking stand 1 and the rice pulling component 2 to harvest from the bottom of the corn stalks in sequence upwards. During the harvesting process, the machine will encounter corn stalks that are bent on the left and right sides. In order to cope with this situation, by setting the positioning sleeve 4, the through hole 5, the trapezoidal opening frame 6, the spring column 7, the oblique splint 8, the matching column 9 and the displacement roller 10 and the wear-resistant layer 11, the specific working process is as follows: First, the corn stalks enter the ear pulling middle leakage plate The middle part of 201 is clamped and pulled for transportation. When the lower middle position of the stalk reaches the position of the guide wheel 15, it will squeeze the guide wheels 15 on both sides and enter between the left and right oblique clamps 8. The oblique clamps 8 elastically clamp the lower part of the corn stalk through the spring column 7 connected to it. As the corn stalk is continuously pulled backward by the pulling roller 203 in the pulling component 2, the left and right bent parts of the middle and upper part of the corn stalk will enter the oblique clamps 8 on both sides for clamping and straightening correction, so that the corn stalk always moves downward in a straight line and completes the subsequent cutting, providing a more stable clamping effect of the corn stalk and reducing the problem of direct breakage during traction due to the bending of the left and right sides of the stalk.

[0042] Secondly, the arrangement of the mounting column 9 and the displacement roller 10 on the inner side of the oblique clamp 8, on the one hand, the displacement rollers 10 arranged equidistantly from front to back provide a long-distance elastic clamping effect for the backward movement of the corn stalks, and the wear-resistant layer 11 arranged on the outer layer of the displacement roller 10 greatly reduces the friction with the stalks during the clamping process, and reduces the risk of the stalks breaking due to friction overheating or excessive squeezing. At the same time, it helps to reduce the generation of stalk fragments and other impurities, making the corn cobs entering the subsequent processing flow purer. Combined with the arrangement of the front stroking component 12 and the rear stroking component 13, the corn stalks in the front and rear ranges are triggered and corrected respectively, which helps to better comb and guide the stalks during the pulling process, which not only improves the pulling efficiency of the stalks, but also reduces machine failures caused by stalk entanglement or blockage.

[0043] Therefore, the self-propelled corn harvester for both seeds and stalks can better adapt to the complex and changeable corn field environment, improve the harvesting efficiency and quality of stalks and ears, and at the same time, reduce the burden of subsequent processing procedures caused by the increase in impurity content due to the breakage of the bent part of the corn stalks, thereby reducing production costs and energy consumption.

[0044] See also Figure 4-Figure 9 The plucking assembly 2 includes: a plurality of ear plucking leakage plates 201, which are equidistantly installed in the middle of the ear plucking stand 1, and adjacent ear plucking leakage plates 201 are installed with each other; a plucking chain 202, which is installed on the left and right sides of the top of the ear plucking leakage plate 201; an ear pulling roller 203, which is rotatably installed on the left and right sides of the bottom end of the ear plucking leakage plate 201, and the rotation direction of the left and right ear pulling rollers 203 is inward; a cutting knife 204, which is provided at the lower part of the ear pulling roller 203 and installed on one side of the bottom of the ear plucking leakage plate 201; a plucking platform 205, which is installed between two adjacent ear plucking leakage plates 201.

[0045] By setting the ear plucking middle leakage plate 201, the pulling chain 202, the ear pulling roller 203, the cutting knife 204 and the pulling platform 205, when the corn harvester is working, the pulling chains 202 on both sides first clamp the corn stalks and pull them to the middle of the ear plucking middle leakage plate 201 through the transmission action of the chain. During the pulling process, the ear pulling roller 203 rotates inward to gather the stalks toward the center and promote the separation of the ears and the stalks. At the same time, the cutting knife 204 cuts off the excess stalks at the appropriate time to ensure that the harvested ears are purer. The pulling platform 205 plays a role in stabilizing and supporting the stalks in the whole process, reduces the bouncing and shaking of the stalks, and improves the stability and efficiency of the harvest. Secondly, a auger conveyor platform is also installed at the rear of the ear picking stand 1 for subsequent conveying and processing of the corn fruits.

[0046] Secondly, reference Figure 1-Figure 3 As shown in FIG, the overall harvesting process of a self-propelled corn harvester for both seed and stalk harvesting is as follows:

[0047] During the forward harvesting process, the self-propelled corn harvester for harvesting both seeds and stalks separates the corn stalks from the corn cobs through the rice-pulling assembly 2 on the ear-picking stand 1, and the squeezed corn cobs fall onto the horizontal conveyor belt A below. The corn with husks is sent to the entrance of the elevator B through the horizontal conveyor belt A. After passing through the elevator B, the corn cobs are lifted to the peeling machine assembly center C. After the corn with husks is peeled by the peeling roller, the corn cobs enter the fruit box D at the rear, and the husks fall along the peeling roller into the husk auger on the lower layer. After the rotation of the husk auger, the husk is sent to the chopper for chopped and then returned to the field. The straw separated by the ear picking stand 1 enters the bridge mechanism E, and is transported into the spreading cylinder F through the bridge mechanism E. The bottom of the spreading cylinder F is composed of a grass cutter and a spreading cylinder. The straw enters the grass cutter and is chopped and then enters the spreading cylinder F, and enters the grass box G from the front of the spreading cylinder F. The roots of the corn stalks harvested by the ear picking stand 1 are broken and returned to the field by the field returner assembled under the harvester chassis, thus completing the corn harvesting process.

[0048] Example 2: Please refer to Figure 10-11 The assembly component 3 includes: two mounting plates 301, which are respectively installed on the left and right sides of the top of the ear picking stand 1; a long connecting rod 302, which is arranged between the two mounting plates 301, and both ends of the long connecting rod 302 are connected to the mounting plates 301 by bolts; there are multiple groups of threaded holes 303, each group has two holes, and they are equidistantly opened on the long connecting rod 302.

[0049] By setting the mounting plate 301, the long connecting rod 302 and the threaded hole 303, the mounting plate 301 ensures the installation stability of the assembly component 3 and the ear picking stand 1, and the long connecting rod 302 installed between the two mounting plates 301 provides an installation position for the trapezoidal opening frame 6, and its length and position can be flexibly adjusted according to actual needs to adapt to various installation environments and requirements. In addition, the application of the threaded hole 303 further enhances the flexibility and convenience of installation, and realizes quick connection and fixation through fasteners such as bolts. Therefore, the assembly component 3 provides multiple flexible installation points through the mounting plate 301 and the adjustable long connecting rod 302, so that the trapezoidal opening frame 6 can be quickly and accurately installed in the specified position without the need for tedious adjustment and positioning steps.

[0050] Example 3: Please refer to Figure 12 、 Figure 13 、 Figure 15 and Figure 16 The front stroking assembly 12 includes: two oblique plates 1201, both of which are installed on the top of the two oblique splints 8; a vertical shaft 1202, one end of which is fixedly installed on the upper part of the outward end of the oblique plate 1201; a rolling wheel 1203, which is rotatably installed in the middle of the vertical shaft 1202, and the left and right rolling wheels 1203 are in an inner octagonal state; a front guide wheel 1204, which is rotatably installed on the other end of the vertical shaft 1202.

[0051] The front-straightening assembly 12 is formed by setting an oblique plate 1201, a vertical shaft 1202, a rolling wheel 1203 and a front guide wheel 1204, and is installed on the top of the oblique splint 8. The assembly effectively guides the corn stalks into the rear clamping area of ​​the oblique splint 8. When the corn stalks reach the rear position of the oblique splints 8 on both sides, the rolling wheels 1203 on both sides will contact the front left and right sides of the corn stalks, providing necessary support and stability for the corn. When the bent corn stalks at the front reach the middle of the rolling wheels 1203 on both sides, they are rolled, combed and straightened by the rolling wheels 1203, reducing the breakage and damage of the stalks, and prompting the stalks to gather towards the center for subsequent clamping and pulling.

[0052] Among them, the design of the vertical shaft 1202 not only enhances the overall stability and rigidity of the front-stroking component 12, but also enables it to withstand various external forces and vibrations generated during the harvesting operation. The function of the front guide wheel 1204 is to contact the stems in advance and guide them to smoothly enter the combing area of ​​the rolling wheel 1203, ensuring that the stems pass through the front-stroking component 12 smoothly and orderly.

[0053] Therefore, the front-stroking component 12 significantly improves the combing efficiency of the corn stalks by virtue of the rolling combing of its roller wheel 1203 and the guiding effect of the front guide wheel 1204, ensuring that the stalks enter the subsequent clamping and pulling links smoothly and orderly, effectively reducing the blockage and entanglement problems of the stalks, and reducing damage to the corn stalks. Compared with the traditional clamping and pulling methods, the front-stroking component 12 handles the stalks more gently, avoiding stalk breakage and impurities caused by excessive squeezing or friction. In addition, the front-stroking component 12 also enhances the overall stability of the corn harvester, and reduces vibration and shaking during the harvesting process by accurately guiding the stalks into the correct position, thereby improving the stability and efficiency of the harvest. Combined with the function of the spring column 7, it can adapt to corn stalks of different shapes and sizes, and can play a good role in various complex harvesting environments, thereby broadening the scope of application of the corn harvester and improving the overall efficiency.

[0054] See also Figure 14 and Figure 17 The rear-pushing assembly 13 includes: a positioning plate 1301, installed at the rear middle part of the top end of the trapezoidal opening frame 6; a movable column 1302, slidably installed in the middle part of the positioning plate 1301; an unfolding plate 1303, installed at the front end of the movable column 1302, and located at the top position of the oblique splint 8; an extrusion spring 1304, sleeved on the outside of the movable column 1302, one end of which is connected to the front end of the positioning plate 1301, and the other end is connected to the rear part of the unfolding plate 1303; there are two oblique wheels 1305, which are rotatably installed on the left and right sides of the middle part of the unfolding plate 1303 respectively.

[0055] By setting the rear stroking assembly 13 consisting of a positioning plate 1301, a movable column 1302, an expansion plate 1303, an extrusion spring 1304 and an inclined wheel 1305, when encountering a corn stalk with a bent rear end, the corn stalk first passes through the guide wheel 15 and the front stroking assembly 12 in turn to reach the rear position of the inclined clamping plate 8, and the movable column 1302, the expansion plate 1303 and the extrusion spring 1304 are used to support the rear end of the entering stalk. As the pulling assembly 2 continues to move, the corn stalk continues to descend. When it reaches the rear curved part, the inclined wheel 1305 in an angled state is used to contact the left and right sides of the rear end of the stalk, and with the support of the front stroking assembly 12 at the front, the rear curved part of the stalk is straightened to ensure that the stalk is effectively combed and clamped, thereby stably fixing the stalk on the harvesting path and reducing the shaking and falling of the stalk during the harvesting process.

[0056] Among them, the movable column 1302 and the extrusion spring 1304 give the rear-smoothing component 13 the ability of adaptive adjustment, so that it can be flexibly adjusted according to the diameter of the corn stalks, and the extrusion spring 1304 provides elastic resistance for the movable column 1302 and the expansion plate 1303, so that they can cling to the stalks without causing excessive extrusion, which not only ensures the stability of clamping but also reduces damage to the stalks. In addition, the angle setting of the oblique wheels 1305 on both sides enables it to roll along the stalks and straighten the rear bent part, reducing the friction and damage of the stalks while guiding the stalks into the correct harvesting path, ensuring the efficiency and stability of the harvesting process.

[0057] Therefore, the rear stroking assembly 13 can be applied to the rear bending and straightening operation of corn stalks of different diameters through the adaptive adjustment design of the movable column 1302 and the extrusion spring 1304, as well as the close cooperation of the expansion plate 1303, the oblique clamping plate 8 and the front stroking assembly 12, which can reduce the damage to the stalks and ensure that the stalks can pass through the cutting operation of the pulling assembly 2 smoothly and orderly to complete the removal of the stalks, thereby improving the smoothness and overall efficiency of the harvesting process. Secondly, the range of the front and rear stroking assembly 12 and the rear stroking assembly 13 for straightening the front and rear curved corn stalks is not limited to the curved corn stalks that are just in the front and rear direction. It can also be used for stalks that are bent at the front and rear, slightly deflected to the left or right, or more deflected.

[0058] Further, see Figure 14 As shown, a shielding plate 1306 is fixedly installed on the top of the positioning plate 1301, and a metal plate 1307 is installed on the top of the shielding plate 1306. By setting the shielding plate 1306 and the harder metal plate 1307, the movable column 1302 and the extrusion spring 1304 can be effectively protected to prevent them from being damaged by the falling corn.

[0059] Further, see Figure 13As shown, the front ends of the oblique splints 8 are fixedly installed with transverse straight plates 14, and the front ends of the top ends of the transverse straight plates 14 are rotatably connected with guide wheels 15. By setting the transverse straight plates 14 and the guide wheels 15, the corn stalks entering between the oblique splints 8 on both sides can be guided to ensure that they enter the interior between the oblique splints 8 on both sides more stably, so as to better carry out the subsequent stalk straightening processing.

[0060] Further, see Figure 9 As shown, the trapezoidal opening frame 6 is arranged at the middle and rear part of the top of the ear-pulling middle leakage plate 201, and the trapezoidal opening frame 6 and the ear-pulling middle leakage plate 201 are aligned with the axis center. By using the middle position of the ear-pulling middle leakage plate 201 to determine the installation position of the trapezoidal opening frame 6, it can be ensured that during the corn harvesting stage, the two can more accurately guide and straighten the corn stalks, providing the necessary prerequisite guarantee for the subsequent straightening operation.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. 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 make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A self-propelled corn harvester for harvesting both seeds and stalks, characterized in that: include: An ear picking stand (1) is installed at the front of the corn harvester body; The pulling component (2) is installed in the ear picking stand (1) and is used to clamp, pull and separate the corn stalks and ears; An assembly component (3) is mounted on the top of the ear picking stand (1) and is used as an installation base point; A plurality of positioning sleeves (4) are provided and are equidistantly mounted on the assembly component (3), and a through hole (5) is provided in the middle of each positioning sleeve (4); The number of the trapezoidal opening frames (6) is equal to the number of the positioning sleeves (4), and both are installed in the middle of the front end of the positioning sleeves (4); Spring columns (7) are slidably mounted on the left and right sides of the front of the trapezoidal opening frame (6); Two oblique splints (8) are provided, both of which are mounted on the inner end of the spring column (7), and the oblique angle of the oblique splints (8) is 25 to 30 degrees; A plurality of mounting columns (9) are equidistantly mounted on the inner side of the oblique splint (8), the middle portions of the plurality of mounting columns (9) are rotatably connected to a plurality of displacement rollers (10), and the outer layers of the displacement rollers (10) are each provided with a wear-resistant layer (11); A front stroking assembly (12) is vertically mounted on the top of each of the oblique splints (8), and the front stroking assembly (12) is triggered when it contacts the bent portion of the corn stalk within the front range. A rear stroking assembly (13) is mounted on the rear of each of the tops of each of the trapezoidal opening frames (6), and the rear stroking assembly (13) is triggered when it contacts the bent portion of the corn stalk within the rear range. The plucking assembly (2) comprises: a plurality of ear plucking middle leakage plates (201), which are equidistantly installed in the middle of the ear plucking stand (1), and adjacent ear plucking middle leakage plates (201) are installed with each other; a plucking chain (202), which is installed on the left and right sides of the top of the ear plucking middle leakage plate (201); an ear pulling roller (203), which is rotatably installed on the left and right sides of the bottom of the ear plucking middle leakage plate (201), and the rotation direction of the ear pulling rollers (203) on the left and right sides is inward rotation; a cutting knife (204), which is provided at the lower part of the ear pulling roller (203) and installed on one side of the bottom of the ear plucking middle leakage plate (201); and a plucking platform (205), which is installed between two adjacent ear plucking middle leakage plates (201); The assembly component (3) comprises: two mounting plates (301) which are respectively mounted on the left and right sides of the top of the ear picking stand (1); a long connecting rod (302) which is arranged between the two mounting plates (301), and both ends of the long connecting rod (302) are connected to the mounting plates (301) by bolts; and a plurality of threaded holes (303) which are arranged in groups, each group having two threads and being equidistantly opened on the long connecting rod (302). The front stroking assembly (12) comprises: two oblique plates (1201), each of which is mounted on the top of the two oblique clamping plates (8); a vertical shaft (1202), one end of which is fixedly mounted on the upper portion of the outward end of the oblique plate (1201); a rolling wheel (1203), which is rotatably mounted on the middle portion of the vertical shaft (1202), and the rolling wheels (1203) on the left and right sides are in an inner octagonal state; and a front guide wheel (1204), which is rotatably mounted on the other end of the vertical shaft (1202).

2. The self-propelled corn harvester for harvesting both seeds and stalks according to claim 1, characterized in that: The rear stroking component (13) comprises: A positioning plate (1301) is mounted on the top rear middle portion of the trapezoidal opening frame (6); A movable column (1302) is slidably mounted on the middle portion of the positioning plate (1301); The expansion plate (1303) is mounted on the front end of the movable column (1302) and is located at the top of the oblique splint (8); The extrusion spring (1304) is sleeved on the outside of the movable column (1302), one end of which is connected to the front end of the positioning plate (1301) and the other end of which is connected to the rear of the expansion plate (1303); There are two oblique wheels (1305), which are rotatably mounted on the left and right sides of the middle of the unfolding plate (1303).

3. The self-propelled corn harvester for harvesting both seeds and stalks according to claim 2, characterized in that: A shielding plate (1306) is fixedly mounted on the top of the positioning plate (1301), and a metal plate (1307) is mounted on the top of the shielding plate (1306).

4. The self-propelled corn harvester for harvesting both seeds and stalks according to claim 1, wherein: A transverse straight plate (14) is fixedly mounted on the front end of each of the oblique splints (8), and a guide wheel (15) is rotatably connected to the front end of each of the top ends of the transverse straight plates (14).

5. The self-propelled corn harvester for harvesting both seeds and stalks according to claim 1, characterized in that: The trapezoidal opening frame (6) is arranged at the middle rear portion of the top end of the ear-pulling middle leakage plate (201), and the trapezoidal opening frame (6) and the ear-pulling middle leakage plate (201) are arranged with their axis centers aligned.

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