Small corn harvester

Abstract

The utility model discloses a small corn harvester, which belongs to the technical field of agricultural machinery equipment, and comprises a driving connecting mechanism, a corn harvesting mechanism and a personnel riding mechanism, the corn harvesting mechanism is arranged at the front side position of the driving connecting mechanism, and the personnel riding mechanism is arranged at the rear side position of the corn harvesting mechanism; the corn harvesting mechanism is composed of a mounting shell frame, a gathering harvesting assembly, a spiral ear picking assembly, a containing box and a smashing and returning assembly, one side of the mounting shell frame is connected with the driving connecting mechanism, the front side of the mounting shell frame is open, a discharging opening is formed in one side of the mounting shell frame, and a discharging opening is formed in the other side of the mounting shell frame. Two sets of gathering plates are symmetrically and obliquely arranged on the opening position of the front side of the mounting shell frame inwards, through cooperative work of all the assemblies, efficient harvesting of corn and secondary recycling of ear stalks are completed, the overall work efficiency is improved, the environment is protected, materials can be recycled, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery and equipment, in particular to a small corn harvester. Background Art

[0002] With the vigorous promotion and popularization of agricultural mechanization in my country, the degree of agricultural mechanization in my country is getting higher and higher, especially in the sowing and harvesting of crops. The degree of mechanization has been greatly improved in the past decade. The popularity of corn harvesting machinery has greatly improved the work efficiency of corn harvesting and reduced the labor intensity of farmers. Patent No. CN216314040U discloses a small corn harvester. A diesel engine and a gearbox are arranged above the chassis, and the diesel engine is transmission-connected to the gearbox. Traveling wheels are arranged below the chassis and are transmission-connected to the gearbox. A cutting table is arranged on the upper right side of the chassis, and a peeling machine is connected to the right side of the cutting table. The cutting table and the peeling machine are both transmission-connected to the gearbox. A flap fixed guide plate is arranged on the left side of the peeling machine, a flap is arranged on the flap fixed guide plate, a flap is arranged on the flap, a flap crank is arranged on the flap, and granaries are arranged on both sides of the flap fixed guide plate. A workbench is arranged on the upper left side of the chassis and is fixedly connected to the chassis through a workbench support frame. The device can realize the harvest of corn in fields that are inconvenient for large machinery to enter, is easy to operate, has good stability, has good peeling effect, and has good applicability.

[0003] However, the small corn harvester cannot collect, process and reuse the corn cobs during the corn harvesting process, which not only causes waste of materials but also damages the environment. Summary of the invention

[0004] The utility model aims to provide a small corn harvester to solve the problem that corn ears cannot be collected, processed and reused during the process of harvesting corn by the small corn harvester, which not only causes waste of materials but also damages the environment.

[0005] The utility model provides a small corn harvester, which consists of a driving connection mechanism, a corn harvesting mechanism and a personnel riding mechanism. The corn harvesting mechanism is arranged at the front side of the driving connection mechanism, the power required by the corn harvesting mechanism is provided by the driving connection mechanism, and the personnel riding mechanism is arranged at the rear side of the corn harvesting mechanism.

[0006] The corn harvesting mechanism is composed of an installation shell frame, a gathering and harvesting assembly, a spiral ear picking assembly, a storage box, and a crushing and returning assembly. One side of the installation shell frame is connected to the drive connection mechanism. The front side of the installation shell frame is open. There is a discharge port on one side of the installation shell frame. Two groups of gathering plates are symmetrically and inclined inward at the open position on the front side of the installation shell frame. The two sides of the gathering and harvesting assembly are installed on the two groups of gathering plates. The spiral ear picking assembly is installed at the lower side position inside the installation shell frame. The gathering and harvesting assembly is correspondingly arranged with the spiral ear picking assembly. The storage box is arranged on one side below the discharge port of the installation shell frame. The crushing and returning assembly is arranged directly below the spiral ear picking assembly on the installation shell frame. The crushing and returning assembly is correspondingly arranged with the spiral ear picking assembly.

[0007] Further, the gathering and harvesting assembly is composed of a gathering and harvesting guide plate, an electric push rod, a connecting block, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a first connecting shaft, a second connecting shaft, a gathering rod, a cutting motor, and a cutting blade. The two sides of the gathering and harvesting guide plate are installed on the gathering plates. The gathering and harvesting guide plate is inclined upward. The electric push rod is installed at the middle position on the lower side of the gathering and harvesting guide plate. The connecting block is installed on the output end of the electric push rod. The first connecting rod is arranged vertically. One end of the first connecting rod is connected to the connecting rod. The second connecting rod is arranged horizontally. The middle position of the second connecting rod is installed at the other end of the first connecting rod. There are two groups of the third connecting rod, the fourth connecting rod, the first connecting shaft, the second connecting shaft, the gathering rod, the cutting motor, and the cutting blade. The two groups of the first connecting shafts are respectively installed at both ends of the second connecting rod. One end of each of the two groups of the third connecting rods is respectively rotatably arranged on the two groups of the first connecting shafts. The two groups of the fourth connecting rods are symmetrically and spaced apart on both sides of the front part of the gathering and harvesting guide plate. The two groups of the second connecting shafts are respectively rotatably arranged at the front ends of the two groups of the fourth connecting rods. The other ends of the two groups of the third connecting rods are respectively fixedly arranged on the two groups of the second connecting shafts. One end of each of the two groups of the gathering rods is respectively fixedly arranged on the two groups of the second connecting shafts.

[0008] Further, the included angle between the gathering rod and the third connecting rod is greater than or equal to 90 degrees and less than 180 degrees. The two groups of the cutting motors are respectively installed at the lower side positions of the other ends of the two groups of the gathering rods. The output ends of the two groups of the cutting motors respectively extend above the gathering rods. The two groups of the cutting blades are detachably installed on the output ends of the two groups of the cutting motors.

[0009] Further, the spiral ear picking assembly consists of a driving and speed-changing device and two groups of spiral ear picking rollers. The driving and speed-changing device is installed at the front side position of the driving connection mechanism. The two groups of spiral ear picking rollers are arranged side by side on the driving and speed-changing device. One end of the two groups of spiral ear picking rollers extends through the installation housing frame to the lower position inside the installation housing frame. The rotational driving directions of the two groups of spiral ear pickers are opposite.

[0010] Further, the crushing and field returning assembly consists of a crushing box, a driving and adjusting member, and two groups of crushing members. The crushing box has a hollow structure. The crushing box is arranged at the lower side position of the installation housing frame. Two groups of crushing adjustment grooves are symmetrically formed on both sides of the crushing box. The adjusting driving member is installed at the rear side position of the crushing box body. The two groups of crushing members are arranged side by side and slidably arranged on the two groups of crushing adjustment grooves on both sides of the crushing box. One side of the two groups of crushing members is connected to the driving and adjusting member. The driving and adjusting member drives the two groups of crushing members to cooperate and perform adjustment operations.

[0011] Further, the driving and adjusting member consists of a driving gantry, a driving motor, a driving gear, two groups of adjusting slide rails, two groups of adjusting slide blocks, two groups of adjusting racks, and two groups of adjusting connecting plates. The two ends of the driving gantry are fixedly arranged on both sides of the rear crushing adjustment groove of the crushing box body. The driving motor is arranged above the driving gantry. The output end of the driving motor is located inside the driving gantry. The driving gear is fixedly arranged on the output shaft of the driving motor. The two groups of adjusting slide rails are symmetrically arranged on both sides inside the driving gantry behind the crushing box body. The two groups of adjusting slide blocks are respectively slidably arranged on both sides of the two groups of adjusting slide rails in a staggered manner. The two groups of adjusting racks are respectively installed on the two groups of adjusting slide blocks. The two groups of adjusting racks are respectively meshed with both sides of the driving gear. The two groups of adjusting connecting plates are respectively arranged on the two groups of adjusting racks. The two groups of adjusting connecting plates both extend to the crushing adjustment grooves.

[0012] Further, each group of crushing members consists of a crushing motor, a crushing roller, a transmission shaft, and two groups of sliding adjustment blocks. The two groups of sliding adjustment blocks are respectively slidably arranged on the two groups of crushing adjustment grooves on the crushing box body. The two ends of the transmission shaft are respectively rotatably arranged on the two sliding blocks. The crushing roller is installed at the middle position of the transmission shaft inside the crushing box. The crushing motor is installed on the adjusting connecting plate. One end of the transmission motor is connected to the output end of the crushing motor.

[0013] Further, a plurality of guide plates are arranged on the inner side of the installation housing frame facing the storage box. The guiding ends of the guide plates are all inclined towards the storage box. A lifting rod is arranged at the top of the installation housing frame. The lifting rod is arranged in an inverted L shape.

[0014] Furthermore, the personnel riding mechanism is composed of an extension frame and an adjustable seat. The extension frame is arranged at the rear side of the drive connection mechanism, and the adjustable seat is installed on the extension frame. The adjustable seat corresponds to the personnel operation part of the drive connection mechanism.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] Firstly: In this application, the overall drive is carried out through the drive connection mechanism to drive the corn harvesting mechanism therein to perform the overall corn harvesting operation. Specifically, the two groups of gathering plates on the front side of the installation shell frame in the corn harvesting mechanism first gather the corn ear stalks within the working range together, and through the work of the gathering and harvesting assembly, the corn ear stalks are gathered as a whole for ear cutting. The cut corn ear stalks are introduced into the spiral ear picking assembly. The spiral ear picking assembly separates the corn from the ear stalks. The corn then falls into the storage box, and the ear stalks enter the crushing and returning-to-field assembly below the spiral ear picking assembly. The crushing and returning-to-field assembly crushes the ear stalks and then they fall into the corn field. The crushed ear stalks can be used as natural fertilizers. Through the coordinated work of each component in this application, efficient corn harvesting and the secondary recycling of ear stalks are completed, improving the overall work efficiency, protecting the environment and enabling the reuse of materials, with high practicability.

[0017] Secondly: Through the setting and work of the gathering and harvesting assembly, the corn ear stalks are gathered as a whole for ear cutting, which will not cause local omission of corn ear stalks and is more convenient for corn collection and harvesting. When the gathering and harvesting assembly works, the electric push rod under the gathering and harvesting guide plate works. The electric push rod pushes the connecting block, the connecting block drives the first connecting rod to push, the first connecting rod drives the second connecting rod to push, the second connecting rod drives the two groups of first connecting shafts on both sides to push, the two groups of first connecting shafts drive the two groups of third connecting rods to adjust, and the two groups of third connecting rods drive the second connecting shaft rotatably arranged on the two groups of fourth connecting rods to rotate and adjust. When the second connecting shaft rotates and adjusts, it drives the gathering rod to perform the operation of opening and closing and gathering. Then, the cutting motor works to drive the cutting blade to cut off the ear stalks and introduce them into the spiral ear picking assembly through the gathering and harvesting guide plate. By setting the angle between the gathering rod and the third connecting rod to be greater than or equal to 90 degrees and less than 180 degrees, the gathering range can be made wider.

[0018] Thirdly, the ear stalks are crushed by the crushing and returning component and then fall into the corn field. Moreover, the crushing spacing of the crushing and returning component can be adjusted, and the ear stalks can be crushed into different thicknesses as natural fertilizers according to needs. When the crushing and returning component works, it works through the adjusting driving part at the rear of the crushing box body. The driving part drives the driving motor on the driving gantry to work. The driving motor drives the driving gear to rotate. At this time, the driving gear drives the two groups of misaligned adjusting racks meshed with it on both sides to adjust. The two groups of adjusting teeth drive the two groups of adjusting sliders to approach each other on the two groups of adjusting slide rails respectively. When the two groups of adjusting sliders approach each other, they drive the two groups of adjusting connecting plates to adjust. The two groups of adjusting connecting plates drive the crushing parts on both sides to approach each other to a specified distance respectively. At this time, the crushing motors in the two groups of crushing parts work to drive the two groups of transmission shafts to rotate. The two groups of transmission shafts drive the two groups of crushing rollers to rotate relative to each other to complete the crushing operation of the ear stalks. Brief Description of the Drawings

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Is the front view of the present invention;

[0021] Figure 2 Is the three-dimensional structure schematic diagram of the first angle of the present invention;

[0022] Figure 3 Is the top view of the present invention;

[0023] Figure 4 Is the three-dimensional structure schematic diagram of the first angle of the present invention;

[0024] Figure 5 Is the three-dimensional structure schematic diagram of the crushing and returning component in the present invention;

[0025] Figure 6 Is the side view of the crushing and returning component in the present invention;

[0026] Figure 7 Is the partial schematic diagram of the crushing and returning component in the present invention.

[0027] Reference numerals: drive connection mechanism 1, corn harvesting mechanism 2, personnel riding mechanism 3, extension frame 31, adjustable seat 32, mounting shell frame 4, material guide plate 41, lifting rod 42, gathering and harvesting assembly 5, gathering and harvesting guide plate 51, electric push rod 52, connecting block 53, first connecting rod 54, second connecting rod 55, third connecting rod 56, fourth connecting rod 57, first connecting shaft 58, second connecting shaft 59, gathering rod 510, cutting motor 511, cutting blade 512, spiral ear picking assembly 6, drive speed change device 61, spiral ear picking roller 62, storage box 7, crushing and returning to field assembly 8, crushing box 81, drive adjusting part 82, drive gantry 821, drive motor 822, drive gear 823, adjusting slide rail 824, adjusting slide 825, adjusting rack 826, adjusting connecting plate 827, crushing part 83, crushing motor 831, crushing roller 832, transmission shaft 833, sliding adjusting block 834, crushing adjusting groove 84, gathering plate 9. Detailed implementation manners

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments.

[0029] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0030] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "linkage" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] The following will be combined with Figures 1 to 7 As shown in the figure, an embodiment of the present utility model provides a small corn harvester, which is composed of a driving connection mechanism 1, a corn harvesting mechanism 2, and a personnel riding mechanism 3. The corn harvesting mechanism 2 is arranged at the front side position of the driving connection mechanism 1, and all the power required by the corn harvesting mechanism 2 is provided by the driving connection mechanism 1. The personnel riding mechanism 3 is arranged at the rear side position of the corn harvesting mechanism 2.

[0034] Specifically, the corn harvesting mechanism 2 is composed of an installation housing frame 4, a gathering and harvesting assembly 5, a spiral ear picking assembly 6, a storage box 7, and a crushing and returning-to-field assembly 8. One side of the installation housing frame 4 is connected to the driving connection mechanism 1. The front side position of the installation housing frame 4 is arranged in an open shape. An outlet is opened on one side of the installation housing frame 4. Two groups of gathering plates 9 are symmetrically inclined inward at the open position on the front side of the installation housing frame 4. The two sides of the gathering and harvesting assembly 5 are installed on the two groups of gathering plates 9. The spiral ear picking assembly 6 is installed at the lower side position inside the installation housing frame 4. The gathering and harvesting assembly 5 and the spiral ear picking assembly 6 are arranged corresponding to each other. The storage box 7 is arranged on one side below the outlet of the installation housing frame 4. The crushing and returning-to-field assembly 8 is arranged directly below the spiral ear picking assembly 6 on the installation housing frame 4. The crushing and returning-to-field assembly 8 and the spiral ear picking assembly 6 are arranged corresponding to each other. In this application, the driving connection mechanism 1 is used for overall driving to drive the corn harvesting mechanism 2 therein to perform the overall corn harvesting operation. Specifically, the two groups of gathering plates 9 on the front side of the installation housing frame 4 in the corn harvesting mechanism 2 first gather the corn ear stalks within the working range together, and through the operation of the gathering and harvesting assembly 5, the corn ear stalks are gathered and cut off as a whole. The cut corn ear stalks are introduced into the spiral ear picking assembly 6. The spiral ear picking assembly 6 separates the corn from the ear stalks. The corn then falls into the storage box 7, and the ear stalks enter the crushing and returning-to-field assembly 8 below the spiral ear picking assembly 6. The crushing and returning-to-field assembly 8 crushes the ear stalks and then they fall into the corn field. The crushed ear stalks can be used as natural fertilizers. Through the coordinated operation of each component in this application, the efficient harvesting of corn and the secondary recycling of ear stalks are completed, improving the overall working efficiency, protecting the environment, and enabling the reuse of materials, with high practicability.

[0035] Specifically, the gathering and harvesting component 5 is composed of a gathering and harvesting guide plate 51, an electric push rod 52, a connecting block 53, a first connecting rod 54, a second connecting rod 55, a third connecting rod 56, a fourth connecting rod 57, a first connecting shaft 58, a second connecting shaft 59, gathering rods 510, cutting motors 511 and cutting blades 512. Both sides of the gathering and harvesting guide plate 51 are installed on the gathering plate 9. The gathering and harvesting guide plate 51 is inclined upward. The electric push rod 52 is installed at the middle position on the lower side of the gathering and harvesting guide plate 51. The connecting block 53 is installed at the output end of the electric push rod 52. The first connecting rod 54 is arranged vertically. One end of the first connecting rod 54 is connected to the connecting rod. The second connecting rod 55 is arranged horizontally. The middle position of the second connecting rod 55 is installed at the other end of the first connecting rod 54. The third connecting rod 56, the fourth connecting rod 57, the first connecting shaft 58, the second connecting shaft 59, the gathering rods 510, the cutting motors 511 and the cutting blades 512 are all provided in two groups. The two first connecting shafts 58 are respectively installed at both ends on the second connecting rod 55. One ends of the two third connecting rods 56 are respectively rotatably arranged on the two first connecting shafts 58. The two fourth connecting rods 57 are symmetrically and spaced apart on both sides of the front part of the gathering and harvesting guide plate 51. The two second connecting shafts 59 are respectively rotatably arranged at the front ends of the two fourth connecting rods 57. The other ends of the two third connecting rods 56 are respectively fixedly arranged on the two second connecting shafts 59. One ends of the two gathering rods 510 are respectively fixedly arranged on the two second connecting shafts 59. The included angle between the gathering rod 510 and the third connecting rod 56 is greater than or equal to 90 degrees and less than 180 degrees. The two cutting motors 511 are respectively installed at the lower side positions of the other ends of the two gathering rods 510. The output ends of the two cutting motors 511 respectively extend above the gathering rods 510. The two cutting blades 512 are detachably installed at the output ends of the two cutting motors 511;Through the setting and operation of the gathering and harvesting component 5, the corn ear stalks are gathered as a whole and then the ears are cut, without causing local omission of corn ear stalks, which is more convenient for the collection and harvesting of corn. When the gathering and harvesting component 5 is operating, the electric push rod 52 under the gathering and harvesting guide plate 51 works. The electric push rod 52 pushes the connecting block 53, the connecting block 53 drives the first connecting rod 54 to push, the first connecting rod 54 drives the second connecting rod to push, the second connecting rod drives the two groups of first connecting shafts 58 on both sides to push, the two groups of first connecting shafts 58 drive the two groups of third connecting rods 56 to adjust, the two groups of third connecting rods drive the second connecting shaft 59 rotatably arranged on the two groups of fourth connecting rods 57 to rotate and adjust. When the second connecting shaft 59 rotates and adjusts, it drives the gathering rod 510 to perform the operation of opening and closing and gathering. Then, the cutting motor 511 works to drive the cutting blade 512 to cut off the ear stalks and introduce them into the spiral ear picking component 6 through the gathering and harvesting guide plate 51. By setting the angle between the gathering rod 510 and the third connecting rod 56 to be greater than or equal to 90 degrees and less than 180 degrees, the gathering range can be made wider.

[0036] Specifically, the spiral ear picking component 6 is composed of a driving and speed-changing device 61 and two groups of spiral ear picking rollers 62. The driving and speed-changing device 61 is installed at the front side position of the driving connection mechanism 1. The two groups of spiral ear picking rollers 62 are arranged side by side on the driving and speed-changing device 61. One end of the two groups of spiral ear picking rollers 62 passes through the mounting housing frame 4 and extends to the lower position inside the mounting housing frame 4. The rotation driving directions of the two groups of spiral ear pickings are opposite.

[0037] Specifically, the crushing and returning component 8 is composed of a crushing box 81, a driving and adjusting member 82, and two groups of crushing members 83. The crushing box 81 has a hollow structure and is arranged at the lower side of the mounting shell frame 4. Two groups of crushing adjustment grooves 84 are symmetrically opened on both sides of the crushing box 81. The adjusting driving member is installed at the rear side of the crushing box 81 body. The two groups of crushing members 83 are arranged side by side and slidably arranged on the two groups of crushing adjustment grooves 84 on both sides of the crushing box 81. One side of the two groups of crushing members 83 is connected to the driving and adjusting member 82, and the driving and adjusting member 82 drives the two groups of crushing members 83 to be connected and cooperated for adjustment operations; The driving and adjusting member 82 is composed of a driving gantry 821, a driving motor 822, a driving gear 823, two groups of adjusting slide rails 824, two groups of adjusting slide tables 825, two groups of adjusting racks 826, and two groups of adjusting connecting plates 827. The two ends of the driving gantry 821 are fixedly arranged on both sides of the rear crushing adjustment groove 84 of the crushing box 81 body. The driving motor 822 is arranged above the driving gantry 821. The output end of the driving motor 822 is located inside the driving gantry 821. The driving gear 823 is fixedly arranged on the output shaft of the driving motor 822. The two groups of adjusting slide rails 824 are symmetrically arranged on both sides inside the driving gantry 821 at the rear of the crushing box 81 body. The two groups of adjusting slide tables 825 are respectively slidably arranged on both sides of the two groups of adjusting slide rails 824 in a staggered manner. The two groups of adjusting racks 826 are respectively installed on the two groups of adjusting slide tables 825. The two groups of adjusting racks 826 are respectively meshed with both sides of the driving gear 823. The two groups of adjusting connecting plates 827 are respectively arranged on the two groups of adjusting racks 826, and the two groups of adjusting connecting plates 827 both extend to the crushing adjustment groove 84; Each group of crushing members 83 is composed of a crushing motor 831, a crushing roller 832, a transmission shaft 833, and two groups of sliding adjustment blocks 834. The two groups of sliding adjustment blocks 834 are respectively slidably arranged on the two groups of crushing adjustment grooves 84 on the crushing box 81 body. The two ends of the transmission shaft 833 are respectively rotatably arranged on the two groups of sliding blocks. The crushing roller 832 is installed at the middle position of the transmission shaft 833 inside the crushing box 81. The crushing motor 831 is installed on the adjusting connecting plate 827, and one end of the transmission motor is connected to the output end of the crushing motor 831;The ear stalks are crushed by the shredding and returning component 8 and then fall into the corn field. Moreover, the spacing of the shredding by the shredding and returning component 8 can be adjusted, and the ear stalks can be shredded into different thicknesses as needed to be used as natural fertilizers. When the shredding and returning component 8 works, it works through the adjusting driving part at the rear side of the shredding box 81 body, driving the adjusting part 82 to drive the driving motor 822 on the driving gantry 821 to work. The driving motor 822 drives the driving gear 823 to rotate. At this time, the driving gear 823 drives the two groups of misaligned adjusting racks 826 meshed with it on both sides for adjustment. The two groups of adjusting teeth drive the two groups of adjusting sliders 825 to approach each other on the two groups of adjusting slide rails 824 respectively. When the two groups of adjusting sliders 825 approach each other, they drive the two groups of adjusting connecting plates 827 for adjustment. The two groups of adjusting connecting plates 827 drive the shredding parts 83 on both sides to adjust and approach each other to a specified distance. At this time, the shredding motors in the two groups of shredding parts 83 work to drive the two groups of transmission shafts 833 to rotate. The two groups of transmission shafts 833 drive the two groups of shredding rollers 832 to rotate relatively to complete the shredding operation of the ear stalks.

[0038] Specifically, a plurality of guide plates 41 are arranged on the inner side of the mounting shell frame 4 facing the storage box 7. The guide ends of the guide plates 41 are all inclined towards the storage box 7. A lifting rod 42 is arranged on the top of the mounting shell frame 4. The lifting rod 42 is arranged in an inverted L shape. Through the arranged plurality of guide plates 41, the collected corn can be better guided into the storage box 7, and the lifting rod 42 prevents the corn ear stalks from being unnecessarily dumped before the corn is collected.

[0039] Specifically, the personnel riding mechanism 3 is composed of an extension frame 31 and an adjustable seat 32. The extension frame 31 is arranged at the rear side of the driving connection mechanism 1. The adjustable seat 32 is installed on the extension frame 31. The adjustable seat 32 corresponds to the personnel operation part of the driving connection mechanism 1.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A small corn harvester, characterized in that: The harvester is composed of a drive connection mechanism (1), a corn harvesting mechanism (2) and a personnel riding mechanism (3). The corn harvesting mechanism (2) is arranged at the front side position of the drive connection mechanism (1). All the power required by the corn harvesting mechanism (2) is provided by the drive connection mechanism (1). The personnel riding mechanism (3) is arranged at the rear side position of the corn harvesting mechanism (2). The corn harvesting mechanism (2) is composed of a mounting housing frame (4), a gathering and harvesting assembly (5), a spiral ear picking assembly (6), a storage box (7) and a crushing and returning-to-field assembly (8). One side of the mounting housing frame (4) is connected to the drive connection mechanism (1). The front side position of the mounting housing frame (4) is arranged in an open shape. An outlet is provided on one side of the mounting housing frame (4). Two groups of gathering plates (9) are symmetrically and inclinedly arranged inward at the open position on the front side of the mounting housing frame (4). The two sides of the gathering and harvesting assembly (5) are mounted on the two groups of gathering plates (9). The spiral ear picking assembly (6) is mounted at the lower side position inside the mounting housing frame (4). The gathering and harvesting assembly (5) is arranged corresponding to the spiral ear picking assembly (6). The storage box (7) is arranged on one side below the outlet of the mounting housing frame (4). The crushing and returning-to-field assembly (8) is arranged directly below the spiral ear picking assembly (6) on the mounting housing frame (4). The crushing and returning-to-field assembly (8) is arranged corresponding to the spiral ear picking assembly (6).

2. The small corn harvester according to claim 1, characterized in that: The gathering and harvesting assembly (5) consists of a gathering and harvesting guide plate (51), an electric push rod (52), a connecting block (53), a first connecting rod (54), a second connecting rod (55), a third connecting rod (56), a fourth connecting rod (57), a first connecting shaft (58), a second connecting shaft (59), a gathering rod (510), a cutting motor (511), and a cutting blade (512). Both sides of the gathering and harvesting guide plate (51) are installed on the gathering plate (9). The gathering and harvesting guide plate (51) is inclined upward. The electric push rod (52) is installed at the middle position on the lower side of the gathering and harvesting guide plate (51). The connecting block (53) is installed at the output end of the electric push rod (52). The first connecting rod (54) is arranged vertically. One end of the first connecting rod (54) is connected to the connecting rod. The second connecting rod (55) is arranged horizontally. The middle position of the second connecting rod (55) is installed at the other end of the first connecting rod (54). There are two sets of the third connecting rod (56), the fourth connecting rod (57), the first connecting shaft (58), the second connecting shaft (59), the gathering rod (510), the cutting motor (511), and the cutting blade (512). The two sets of the first connecting shafts (58) are respectively installed at both ends on the second connecting rod (55). One end of each of the two sets of the third connecting rods (56) is respectively rotatably arranged on the two sets of the first connecting shafts (58). The two sets of the fourth connecting rods (57) are symmetrically and spaced apart on both sides of the front part of the gathering and harvesting guide plate (51). The two sets of the second connecting shafts (59) are respectively rotatably arranged at the front ends of the two sets of the fourth connecting rods (57). The other ends of the two sets of the third connecting rods (56) are respectively fixedly arranged on the two sets of the second connecting shafts (59). One end of each of the two sets of the gathering rods (510) is respectively fixedly arranged on the two sets of the second connecting shafts (59).

3. The small corn harvester according to claim 2, wherein: The included angle between the gathering rod (510) and the third connecting rod (56) is greater than or equal to 90 degrees and less than 180 degrees. The two sets of the cutting motors (511) are respectively installed at the lower side positions of the other ends of the two sets of the gathering rods (510). The output ends of the two sets of the cutting motors (511) respectively extend above the gathering rods (510). The two sets of the cutting blades (512) are detachably installed at the output ends of the two sets of the cutting motors (511).

4. A small corn harvester according to claim 3, characterized in that: The spiral ear picking assembly (6) consists of a driving and speed-changing device (61) and two sets of spiral ear picking rollers (62). The driving and speed-changing device (61) is installed at the front side position of the driving connection mechanism (1). The two sets of the spiral ear picking rollers (62) are arranged side by side on the driving and speed-changing device (61). One end of each of the two sets of the spiral ear picking rollers (62) passes through the installation housing frame (4) and extends to the lower position inside the installation housing frame (4). The rotational driving directions of the two sets of the spiral ear picking are opposite.

5. A small corn harvester according to claim 4, characterized in that: The crushing and returning component (8) is composed of a crushing box (81), a driving and adjusting member (82) and two groups of crushing members (83). The crushing box (81) has a hollow structure. The crushing box (81) is arranged at the lower side of the installation shell frame (4). Two groups of crushing adjustment grooves (84) are symmetrically arranged on both sides of the crushing box (81). The driving and adjusting member (82) is installed at the rear side of the crushing box (81). The two groups of crushing members (83) are arranged side by side and slidably arranged on the two groups of crushing adjustment grooves (84) on both sides of the crushing box (81). One side of the two groups of crushing members (83) is connected to the driving and adjusting member (82). The driving and adjusting member (82) drives the two groups of crushing members (83) to be connected and cooperate for adjustment operations.

6. The small corn harvester according to claim 5, characterized in that: The driving and adjusting member (82) is composed of a driving gantry (821), a driving motor (822), a driving gear (823), two groups of adjusting slide rails (824), two groups of adjusting slide tables (825), two groups of adjusting racks (826) and two groups of adjusting connecting plates (827). The two ends of the driving gantry (821) are fixedly arranged on both sides of the rear crushing adjustment groove (84) of the crushing box (81). The driving motor (822) is arranged above the driving gantry (821). The output end of the driving motor (822) is located inside the driving gantry (821). The driving gear (823) is fixedly arranged on the output shaft of the driving motor (822). The two groups of adjusting slide rails (824) are symmetrically arranged on both sides inside the driving gantry (821) at the rear of the crushing box (81). The two groups of adjusting slide tables (825) are respectively arranged in a staggered manner and slidably arranged on both sides of the two groups of adjusting slide rails (824). The two groups of adjusting racks (826) are respectively installed on the two groups of adjusting slide tables (825). The two groups of adjusting racks (826) are respectively meshed with both sides of the driving gear (823). The two groups of adjusting connecting plates (827) are respectively arranged on the two groups of adjusting racks (826). The two groups of adjusting connecting plates (827) both extend to the crushing adjustment groove (84).

7. A small corn harvester according to claim 6, characterized in that: Each group of the crushing members (83) is composed of a crushing motor (831), a crushing roller (832), a transmission shaft (833) and two groups of sliding adjustment blocks (834). The two groups of sliding adjustment blocks (834) are respectively slidably arranged on the two groups of crushing adjustment grooves (84) on the crushing box (81). The two ends of the transmission shaft (833) are respectively rotatably arranged on the two groups of sliding blocks. The crushing roller (832) is installed at the middle position of the transmission shaft (833) located inside the crushing box (81). The crushing motor (831) is installed on the adjusting connecting plate (827). One end of the transmission shaft (833) is connected to the output end of the crushing motor (831).

8. A small corn harvester according to claim 7, characterized in that: A plurality of guide plates (41) are arranged on the inner side of the installation housing (4) facing the storage box (7). The guide ends of the guide plates (41) are all inclined towards the storage box (7). A lifting rod (42) is arranged on the top of the installation housing (4), and the lifting rod (42) is arranged in an inverted L shape.

9. A small corn harvester according to claim 1, characterized in that: The personnel riding mechanism (3) is composed of an extension frame (31) and an adjustable seat (32). The extension frame (31) is arranged at the rear side of the drive connection mechanism (1). The adjustable seat (32) is installed on the extension frame (31), and the adjustable seat (32) corresponds to the personnel operation part of the drive connection mechanism (1).

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