Header device for corn harvester

Abstract

The utility model discloses a header device for a corn harvester, which relates to the corn harvester and comprises a rack, the rack is provided with an ear picking channel, and two groups of grain pulling mechanisms rotating inwards are arranged on the rack on two sides of the ear picking channel; two groups of grain lifting mechanisms which rotate inwards are assembled at the front end of the rack on the two sides of the ear picking channel; the grain lifting mechanism is provided with a rotating disc and a plurality of grain lifting shifting teeth, and the rotating disc is assembled on the rack through a coupling structure; the grain lifting shifting teeth are arranged at intervals along the circumference of the rotating disc and can extend outwards in the radial direction; and the two groups of grain lifting mechanisms move along with the corresponding grain pulling mechanisms on the rack. The grain lifting shifting teeth extend outwards in the radial direction, corn plants in the working range of the grain lifting shifting teeth can be straightened and guided to enter the ear picking channel, operation is easy, the coverage range is enlarged, the problem of missing cutting caused by irregular planting of the plants is effectively solved, and convenience and harvesting efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to a corn harvester, in particular to a cutting platform device for the corn harvester. Background Art

[0002] With the continuous advancement of agricultural modernization, corn, as one of the world's important food crops, its harvesting efficiency and ear picking quality directly affect the economic benefits of agricultural production.

[0003] The prior art discloses a device that can be used for corn harvesting. Please refer to the technology disclosed in the Chinese patent document entitled "A corn harvesting platform ear picking device and a corn harvester having the same", with publication number CN118542142A and publication date of August 27, 2024. In this technology, the corn stalks are guided by guide blocks and introduced between two sets of stalk-pulling rollers. The automatic position adjustment of the stalk-pulling rollers is achieved by the first adjustment component to adapt to corn stalks of different specifications. At the same time, the second adjustment component adjusts the angle and distance of the main stem plate to adapt to the movement of the stalk-pulling rollers. However, in actual use, when facing irregularly planted corn fields, this technology can only effectively harvest those neatly arranged plants. For irregularly arranged plants, additional harvesting operations are required, which increases the workload, reduces convenience and flexibility, and the repeated harvesting process delays the harvesting progress, resulting in low harvesting efficiency. Utility Model Content

[0004] The utility model provides a corn cutting platform ear picking device and a corn harvester having the same, in order to solve the technical problems of poor device convenience and low harvesting efficiency in the prior art.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] A header device for a corn harvester comprises a frame having an ear picking channel, and two sets of inward-rotating reed-pushing mechanisms are arranged on the frame on both sides of the ear picking channel;

[0007] Two sets of inward-rotating straw-supporting mechanisms are installed at the front ends of the frames on both sides of the ear-picking channel;

[0008] The straw supporting mechanism comprises a rotating disc and a plurality of straw supporting teeth, wherein the rotating disc is assembled on the frame by a shaft connection structure; the straw supporting teeth are arranged at intervals along the circumference of the rotating disc and can extend radially outward;

[0009] Two groups of straw supporting mechanisms move with corresponding straw shifting mechanisms on the frame.

[0010] The above technical measures are achieved by assembling two sets of inward-rotating straw-supporting mechanisms at the front section of the frame. The straw-supporting mechanisms move with the corresponding straw-pushing mechanisms. When the straw-pushing mechanisms start to rotate, the rotating disk is also driven to rotate. The straw-supporting and straw-pushing teeth extend radially outward, which can straighten and guide the corn plants within the working range of the straw-supporting and straw-pushing teeth into the ear-picking channel. The operation is simple, the coverage range is increased, and the problem of missed harvesting due to irregular planting of plants is effectively avoided, which is conducive to improving convenience and harvesting efficiency.

[0011] Furthermore, the straw-supporting and shifting teeth of the straw-supporting mechanism are hingedly assembled on the rotating disk;

[0012] The hinged end of the straw-supporting and digging teeth has a guide head protruding in a bent structure;

[0013] Correspondingly, the fixed structure opposite to the rotating disk of the straw supporting mechanism is provided with a guide plate extending to the rotating disk to form a radially extending sliding path for the straw supporting and shifting teeth;

[0014] When the straw supporting and shifting teeth of the straw supporting mechanism rotate to the guide plate, the guide head abuts against the outer wall of the guide plate to cause the straw supporting and shifting teeth to extend radially outward.

[0015] In the above technical measures, the straw-supporting teeth are assembled on the rotating disk in an articulated manner, so that the angle of the straw-supporting teeth can be flexibly adjusted. Through the cooperation of the guide head and the guide plate, the radial outward extension of the straw-supporting teeth is realized, which is conducive to improving work efficiency.

[0016] Furthermore, the straw supporting and shifting teeth of the straw supporting mechanism are duckbill-shaped structures with a hollow cross section, and the hinged ends of the straw supporting and shifting teeth are hinged to the rotating disk in a manner that the hollow interior envelops the rotating disk.

[0017] The structure of the straw-supporting and straw-pulling teeth in the above technical measures is simple, and the provision of an inner hollow structure helps to reduce weight and save costs while meeting structural strength.

[0018] Furthermore, the main body of the straw-supporting and digging teeth is matched with the guide head at an obtuse angle.

[0019] The above technical measures can ensure that when the straw-supporting teeth rotate to the guide plate, the guide head abuts against the outer wall of the guide plate through the coordination of the obtuse angle relationship, so that the straw-supporting teeth extend radially outward, which is conducive to enhancing stability.

[0020] Furthermore, the guide plate on the fixed structural member opposite to the rotating disk of the rice-supporting mechanism is formed in an arc-shaped plate structure at the inner side of the front end of the ear-picking channel.

[0021] The above technical measures can better guide the movement of the straw-supporting and straw-pulling teeth by designing the guide plate as an arc-shaped plate structure, which is conducive to improving work efficiency.

[0022] Furthermore, the guide plate is formed on the frame and / or the housing;

[0023] The guide plate is adjacent to the edge of the rotating disk and has a rotation gap between the guide plate and the rotating disk.

[0024] In the above technical measures, there is a rotation gap between the guide plate and the rotating disk, which can realize the radial extension of the straw-supporting and plowing teeth.

[0025] Furthermore, the rotating disk of the rice-supporting mechanism is circumferentially connected with a chain;

[0026] Each of the straw supporting and shifting teeth of the straw supporting mechanism is hinged on a chain connected to the circumference of the rotating disk.

[0027] The above technical measures simplify the articulation process by connecting the chain around the rotating disk and hinge the straw-supporting teeth on the chain, which is conducive to enhancing stability. At the same time, it increases the thickness of the rotating disk to a certain extent, providing convenience for the design of the guide plate.

[0028] Furthermore, the reeling mechanism comprises a driving wheel at the rear end of the frame, a driven wheel at the front end of the frame, and a reeling chain sleeved between the driving wheel and the driven wheel;

[0029] The rotating disk of the reel-supporting mechanism and the driven wheel of the reel-moving mechanism are assembled in a coaxial relationship.

[0030] The above technical measures achieve synchronous movement of the rotating disk and the driven wheel by assembling the rotating disk and the driven wheel in a coaxial relationship, which is beneficial to improving the coordination and working efficiency of the device.

[0031] Furthermore, the front end of the ear picking channel of the frame is a forked structure, and the ear picking channel is Y-shaped.

[0032] The above technical measures can better adapt to corn plants of different planting forms by setting the front section of the ear picking channel as a forked structure, thereby improving adaptability and flexibility and helping to reduce the phenomenon of missing plants.

[0033] One or more technical solutions provided by this utility model have at least the following technical effects or advantages:

[0034] The utility model assembles two groups of inward-rotating straw supporting mechanisms at the front section of the frame. The straw supporting mechanisms move with the corresponding straw-pushing mechanisms. When the straw-pushing mechanisms start to rotate, the rotating disk is also driven to rotate. The straw supporting and pulling teeth extend radially outward, and the corn plants within the working range of the straw supporting and pulling teeth can be straightened and guided into the ear picking channel. The operation is simple, the coverage range is increased, and the problem of missed harvesting due to irregular planting of plants is effectively avoided, which is conducive to improving convenience and harvesting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of the present invention, and do not constitute a limitation of the embodiments of the present invention;

[0036] Figure 1 This is a structural diagram of the corn harvesting device in the present invention;

[0037] Figure 2 This is a structural diagram of the utility model where the straw-supporting and plowing teeth rotate to the guide plate;

[0038] Among them, 1-frame; 2-gearbox; 3-driving wheel; 4-grain chain; 5-driven wheel; 6-rotating plate; 7-chain; 8-grain supporting and shifting teeth; 9-guide plate; 10-slide. DETAILED DESCRIPTION

[0039] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present invention and the features therein can be combined with each other without conflict.

[0040] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0041] Example 1

[0042] Reference Figure 1-2 This embodiment provides a header device for a corn harvester, comprising a frame 1 having an ear picking channel, and two sets of inward-rotating reed-pulling mechanisms arranged on the frame 1 on both sides of the ear picking channel;

[0043] Two sets of inward-rotating straw-supporting mechanisms are installed at the front end of the frame 1 on both sides of the ear-picking channel;

[0044] The straw supporting mechanism comprises a rotating disc 6 and a plurality of straw supporting teeth 8. The rotating disc 6 is mounted on the frame 1 by a shaft connection structure. The straw supporting teeth 8 are arranged at intervals along the circumference of the rotating disc 6 and can extend radially outward.

[0045] The two groups of straw supporting mechanisms are mounted on the frame 1 and move with the corresponding straw shifting mechanisms.

[0046] The corn harvester header device is provided with a matching shell on the outside, and a gearbox 2 is provided at the rear end of the frame 1; the straw supporting mechanism has three straw supporting teeth 8.

[0047] The straw-lifting mechanism's straw-lifting teeth 8 are hingedly mounted on a rotating disk 6. The hinged end of the straw-lifting teeth 8 has a guide head protruding in a bent structure. Correspondingly, a fixed structural member opposite the rotating disk 6 of the straw-lifting mechanism has a guide plate 9 extending to the rotating disk 6 to form a radially outwardly extending motion path 10 for the straw-lifting teeth 8.

[0048] When the straw supporting and shifting teeth 8 of the straw supporting mechanism rotate to the guide plate 6, the guide head abuts against the outer wall of the guide plate 9, causing the straw supporting and shifting teeth 8 to extend radially outward.

[0049] The straw supporting and shifting teeth 8 of the straw supporting mechanism are duckbill-shaped structures with a hollow cross section. The hinged end of the straw supporting and shifting teeth 8 is hinged to the rotating disk 6 in a manner that the hollow interior envelops the rotating disk 6 .

[0050] The main body of the weed-supporting and weed-pulling teeth 8 is fitted to the guide head at an obtuse angle.

[0051] The guide plate 9 on the fixed structural member opposite to the rotating disk 6 of the rice-supporting mechanism is formed in an arc-shaped plate structure at the inner side of the front end of the ear-picking channel.

[0052] The guide plate 9 is formed on the frame 1 ; the guide plate 9 is adjacent to the edge of the rotating disk 6 and has a rotation gap between the guide plate 9 and the rotating disk 6 .

[0053] The rotating disk 6 of the supporting mechanism is circumferentially connected with a chain 7;

[0054] Each straw-supporting teeth 8 of the straw-supporting mechanism is hinged on a chain 7 connected to the circumference of the rotating disk 6.

[0055] The reel mechanism comprises a driving wheel 3 at the rear end of a frame 1, a driven wheel 5 at the front end of the frame 1, and a reel chain 4 sleeved between the driving wheel 3 and the driven wheel 5;

[0056] The rotating disc 6 of the straw-supporting mechanism and the driven wheel 5 of the straw-moving mechanism are assembled in a coaxial relationship.

[0057] The reeling mechanism has two sets of driving wheels 3 and four sets of driven wheels.

[0058] The front end of the ear picking channel of the frame 1 is a forked structure, and the ear picking channel is Y-shaped.

[0059] When in use, the gearbox 2 is started, the driving wheel 3 starts to rotate, and the straw chain 4 drives the driven wheel 5 to rotate, thereby driving the rotating disk 6 to rotate. During the rotation of the rotating disk 6, each straw-supporting tooth 8 also rotates accordingly. When the straw-supporting tooth 8 rotates to the guide plate 9 located on the frame 1, the guide head of the straw-supporting tooth 8 hits the outer wall of the guide plate 9, causing the straw-supporting tooth 8 to extend radially outward. The outwardly extended straw-supporting tooth 8 begins to slide in the slide 10. When it touches the corn plant during the sliding process, the corn plant is straightened and guided into the ear picking channel. When the straw-supporting tooth 8 disengages from the guide plate 9, it retracts as it continues to rotate.

[0060] Example 2

[0061] The rest of this embodiment is the same as that of embodiment 1, except that:

[0062] The guide plate 9 is formed on the housing;

[0063] When in use, the gearbox 2 is started, the driving wheel 3 starts to rotate, and the straw chain 4 drives the driven wheel 5 to rotate, thereby driving the rotating disk 6 to rotate. During the rotation of the rotating disk 6, each straw-supporting tooth 8 also rotates accordingly. When the straw-supporting tooth 8 rotates to the guide plate 9 located on the outer shell, the guide head of the straw-supporting tooth 8 hits the outer wall of the guide plate 9, causing the straw-supporting tooth 8 to extend radially outward. The outwardly extended straw-supporting tooth 8 begins to slide in the slide 10. When it touches the corn plant during the sliding process, the corn plant is straightened and guided into the ear picking channel. When the straw-supporting tooth 8 disengages from the guide plate 9, it retracts as it continues to rotate.

[0064] Example 3

[0065] The rest of this embodiment is the same as that of embodiment 1, except that:

[0066] Reference Figure 2 There are two guide plates 9, which are respectively formed on the frame 1 and the shell, and the two guide plates 9 are set correspondingly;

[0067] When in use, the gearbox 2 is started, the driving wheel 3 starts to rotate, and the straw chain 4 drives the driven wheel 5 to rotate, thereby driving the rotating disk 6 to rotate. During the rotation of the rotating disk 6, each straw-supporting tooth 8 also rotates accordingly. When the straw-supporting tooth 8 rotates to the guide plate 9 located on the outer shell and the frame 1, the guide head of the straw-supporting tooth 8 hits the outer wall of the guide plate 9, causing the straw-supporting tooth 8 to extend radially outward. The outwardly extended straw-supporting tooth 8 begins to slide in the slide 10. When it touches the corn plant during the sliding process, the corn plant is straightened and guided into the ear picking channel. When the straw-supporting tooth 8 disengages from the guide plate 9, it retracts as it continues to rotate.

[0068] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0069] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A cutting table device for a corn harvester, comprising a frame (1), the frame (1) having an ear picking channel, and two sets of inward-rotating reed-moving mechanisms arranged on the frame (1) on both sides of the ear picking channel; Its characteristics are: Two sets of inward-rotating straw-supporting mechanisms are installed at the front ends of the frames (1) on both sides of the ear-picking channel; The straw supporting mechanism comprises a rotating disk (6) and a plurality of straw supporting teeth (8), wherein the rotating disk (6) is assembled on the frame (1) in a shaft connection structure; the straw supporting teeth (8) are arranged at intervals along the circumference of the rotating disk (6) and can extend radially outwards; Two groups of straw-supporting mechanisms move with corresponding straw-moving mechanisms on the frame (1).

2. The header device for a corn harvester according to claim 1, characterized in that: The straw-supporting teeth (8) of the straw-supporting mechanism are hingedly mounted on the rotating disk (6); The hinged end of the supporting and shifting tooth (8) has a guide head protruding in a bent structure; Correspondingly, a fixed structural member opposite to the rotating disk (6) of the straw-supporting mechanism is provided with a guide plate (9) extending to the rotating disk (6) and forming a radially extending motion slideway (10) for the straw-supporting teeth (8); When the straw-supporting and shifting teeth (8) of the straw-supporting mechanism rotate to the guide plate (9), the guide head abuts against the outer wall of the guide plate (9) to cause the straw-supporting and shifting teeth (8) to extend radially outward.

3. The header device for a corn harvester according to claim 2, characterized in that: The straw-supporting tooth (8) of the straw-supporting mechanism is a duckbill-shaped structure with a hollow cross section, and the hinged end of the straw-supporting tooth (8) is hinged to the rotating disk (6) in a manner such that the hollow interior envelops the rotating disk (6).

4. The header device for a corn harvester according to claim 2 or 3, characterized in that: The main body of the supporting and shifting tooth (8) is matched with the guide head at an obtuse angle.

5. The header device for a corn harvester according to claim 2, characterized in that: The guide plate (9) on the fixed structural member opposite to the rotating disk (6) of the rice-supporting mechanism is formed with an arc-shaped plate structure at the inner side of the front end of the ear-picking channel.

6. The header device for a corn harvester according to claim 2 or 5, characterized in that: The guide plate (9) is formed on the frame (1) and / or the housing; The guide plate (9) is adjacent to the edge of the rotating disk (6), and there is a rotation gap between the guide plate (9) and the rotating disk (6).

7. The header device for a corn harvester according to claim 2, characterized in that: The rotating disk (6) of the rice-supporting mechanism is circumferentially connected with a chain (7); Each straw-supporting and shifting tooth (8) of the straw-supporting mechanism is hingedly connected to a chain (7) connected around the circumference of the rotating disk (6).

8. The header device for a corn harvester according to claim 1, characterized in that: The reeling mechanism comprises a driving wheel (3) at the rear end of the frame (1), a driven wheel (5) at the front end of the frame (1), and a reeling chain (4) sleeved between the driving wheel (3) and the driven wheel (5); The rotating disk (6) of the straw-supporting mechanism and the driven wheel (5) of the straw-moving mechanism are assembled in a coaxial relationship.

9. The header device for a corn harvester according to claim 1 or 8, characterized in that: The front end of the ear picking channel of the frame (1) is a forked structure, and the ear picking channel is Y-shaped.

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