Fresh corn header

Abstract

The invention provides a fresh corn header, which belongs to the technical field of corn harvesting and comprises a plurality of groups of harvesting chain wheels, each group of harvesting chain wheels are connected through a harvesting chain, the outer side of each harvesting chain is connected with a plurality of pushing blocks, and a material channel is formed between every two adjacent harvesting chains; the bottom of the harvesting chain wheel on one side is fixed to a bottom plate, and the bottom plate is fixed to the table body. An elastic ear picking device is further arranged on the bottom plate and arranged on the inner side of the harvesting chain, and a harvesting chain wheel on the other side of the elastic ear picking device is fixed to the table body. The table body is also connected with a stalk pulling assembly for pulling corn stalks; the stem pulling assembly is located at the bottom of the elastic ear picking device. According to the corn harvester, the elastic ear picking device moves along with corn when the stalk pulling assembly separates corn stalks from the corn, stress of corn kernels is reduced, meanwhile, the elastic ear picking device can change the size of a material channel according to the size of the corn, rolling of the corn is reduced, and therefore damage to the corn is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of corn harvesting, and in particular relates to a fresh corn harvesting platform. Background Art

[0002] Corn is one of the crops with the largest planting area and yield in the world. Corn is widely used in the food industry and energy industry. Modern large-scale corn harvesting mostly uses corn harvesters. The current market has higher requirements for the harvesting efficiency of fresh corn. Most of the existing corn harvesters use hard material channels. Separating corn stalks and corn through this channel will cause corn kernels to fall off and damage the corn surface, thereby reducing the taste of corn and increasing the difficulty of corn processing in the later stage. Therefore, there is a lack of a special cutting table for fresh corn that can reduce damage to corn. Summary of the invention

[0003] In order to solve the above problems in the prior art, a fresh corn cutting platform is proposed.

[0004] The technical solution to the technical problem solved by the present invention is: a fresh corn harvesting platform, comprising several groups of harvesting sprockets, each group of harvesting sprockets is connected by a harvesting chain, several pushing blocks are connected to the outer side of the harvesting chain, and a material channel is formed between adjacent harvesting chains; the bottom of the harvesting sprocket on one side is fixed to the bottom plate, and the bottom plate is fixed to the platform body; an elastic ear picking device is also provided on the bottom plate, the elastic ear picking device is arranged on the inner side of the harvesting chain, and the harvesting sprocket on the other side is fixed to the platform body; a stem pulling component for pulling corn stalks is also connected to the platform body; the stem pulling component is located at the bottom of the elastic ear picking device.

[0005] Preferably, the elastic ear picking device includes two groups of symmetrically arranged ear picking components, the ear picking components include an ear picking plate, one side of the ear picking plate is connected to a connecting plate, the bottom of the connecting plate is connected to the middle of a connecting rod, both ends of the connecting rod are rotatably connected to the side of the base plate, and a limiting shaped cam is provided at one end of the connecting rod, which can adjust the distance between the base plate and the ear picking plate.

[0006] Preferably, the ear picking assembly also includes a shock absorber arranged on the ear picking plate, the bottom of the shock absorber is fixed to the ear picking plate, the top is connected to a fixing block, and the fixing block is connected to the bottom plate.

[0007] Preferably, the bottom plate is also rotatably connected to an auxiliary limiting wheel, the auxiliary limiting wheel is perpendicular to the limiting special-shaped cam, and one side of the auxiliary limiting wheel is a section.

[0008] Preferably, the stem pulling assembly includes two groups of symmetrically arranged stem pulling rollers, a number of stem pulling knives are connected to the outer walls of the stem pulling rollers, one end of the stem pulling roller is connected to a stem pulling driving member, and the stem pulling driving member is connected to the platform; the other end of the stem pulling roller is rotatably connected to a fixed frame, and the fixed frame is fixed to the bottom of the base plate; a stem pulling channel is formed between the two groups of stem pulling rollers.

[0009] Preferably, the outside of the harvesting sprocket is connected to a roto-molded cover, which covers the harvesting chain and the elastic ear picking device; the end of the roto-molded cover is connected to a straw divider, which guides the corn stalks into the material channel.

[0010] Preferably, both sides of the platform are rotatably connected to corn stalks to press down the corn stalks.

[0011] Preferably, the bottom of the harvesting sprocket on the platform is connected to the driving shaft, the bottom of the driving shaft is connected to the first bevel gear, the bottom of the first drive sprocket is also provided with a second bevel gear that cooperates with the first bevel gear, and the first bevel gear and the second bevel gear cooperate with each other for vertical transmission; the second bevel gear is fixed on the transverse transmission shaft, and a plurality of first drive sprockets are also provided on the transverse transmission shaft, and a second drive sprocket is also provided on the platform, the first drive sprocket and the second drive sprocket are connected by a drive chain, and the second drive sprocket is driven by a driving member.

[0012] Preferably, a first tensioning wheel is provided on the bottom plate for tensioning the harvesting chain; and a second tensioning wheel is provided on the platform body for tensioning the driving chain.

[0013] Compared with the prior art, the above technical solution has the following advantages or beneficial effects: 1. The present invention uses an elastic ear picking device to move along with the corn when the stem pulling component separates the corn stalks from the corn, thereby reducing the stress on the corn kernels. At the same time, the elastic ear picking device can also change the size of the material channel according to the size of the corn, thereby reducing the rolling of the corn and thus reducing damage to the corn.

[0014] 2. The present invention realizes the whole process from corn peeling to transportation through devices such as stem pulling components, straw dividers, straw gatherers, harvesting chains and pushing blocks, and has strong adaptability and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 It is a schematic diagram of the structure of the present invention without the rotational molded cover.

[0018] Figure 3 yes Figure 2 A magnified schematic diagram of center A.

[0019] Figure 4 It is a structural schematic diagram of an elastic ear picking device.

[0020] Figure 5It is a bottom view of the elastic ear picking device.

[0021] Figure 6 It is a schematic diagram of the rotomolded cover.

[0022] Figure 7 is a schematic diagram of the pull stem assembly.

[0023] Figure 8 It is a schematic diagram of the harvesting sprocket drive.

[0024] Fig. 9 It is a schematic diagram of a fresh corn cutting station in the second embodiment.

[0025] Fig.10 It is a cross-sectional view of the fresh corn cutting table of the second embodiment.

[0026] Fig.11 yes Fig.10 Enlarged view of point A in the middle.

[0027] Description of reference numerals: 1. Grain divider; 2. Roto-molded cover; 3. Grain gatherer; 4. Harvester chain; 5. Push block; 6. Bottom plate; 7. Elastic ear picking device; 8. Harvester sprocket; 9. First tensioning wheel; 10. Second tensioning wheel; 11. Driving chain; 12. Second driving sprocket; 13. Driving member; 14. First driving sprocket; 15. Stem pulling assembly; 16. Platform; 17. Stem pulling roller; 18. Stem pulling knife; 19. Fixed frame; 20. Stem pulling driving member; 21. Ear picking plate; 22. Connecting rod; 23. Connecting plate; 24. Auxiliary limiting wheel; 25. Limiting special-shaped cam; 26. Fixed block; 27. Shock absorber; 28. Transverse transmission shaft; 29. ​​First bevel gear; 30. Second bevel gear; 31. Driving shaft; 32. First ear collecting gear; 33. Ear collecting chain; 34. Ear collecting plate; 35. Fixing bolt; 36. Second ear collecting gear; 37. Ear collecting channel outlet; 38. Ear collecting cavity. DETAILED DESCRIPTION

[0028] In order to clearly illustrate the technical features of the present solution, the present invention is described in detail below through specific implementation methods and in combination with the accompanying drawings. The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. In addition, the present invention may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. It should be noted that the components illustrated in the accompanying drawings are not necessarily drawn to scale. The present invention omits the description of known components and processing technologies and processes to avoid unnecessary limitations on the present invention. The orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which 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 therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Embodiment 1: See also Figure 1-Figure 8 In order to solve the problem that fresh corn is easily damaged during harvesting and affects subsequent processing and consumption, the damage to fresh corn kernels during the harvesting process is reduced, and the work efficiency of a single machine per unit time is improved. The harvesting table adopts an elastic ear picking device 7, a heightened roto-molded shield body, an interchangeable long and short grain divider 1 and a stem pulling roller 17, etc., which can effectively reduce the impact of corn cobs, reduce kernel drop, reduce kernel damage, avoid kernel bursting, and improve harvesting efficiency. A fresh corn harvesting platform proposed in this embodiment includes several groups of harvesting sprockets 8, each group of harvesting sprockets 8 is connected by a harvesting chain 4, and several pushing blocks 5 are connected to the outer side of the harvesting chain 4, so that a material channel is formed between adjacent harvesting chains 4; the bottom of the harvesting sprocket 8 on one side is fixed on the bottom plate 6, and the bottom plate 6 is fixed on the platform body 16; an elastic ear picking device 7 is also provided on the bottom plate 6, and the elastic ear picking device 7 is arranged on the inner side of the harvesting chain 4, and the harvesting sprocket 8 on the other side is fixed on the platform body 16; the platform body 16 is also connected to a stem pulling component 15 for pulling corn stalks; the stem pulling component 15 is located at the bottom of the elastic ear picking device 7.

[0030] The elastic ear picking device 7 in this embodiment includes two groups of ear picking components arranged symmetrically, and the ear picking component includes an ear picking plate 21, one side of the ear picking plate 21 is connected to a connecting plate 23, the bottom of the connecting plate 23 is connected to the middle of a connecting rod 22, both ends of the connecting rod 22 are rotatably connected to the side of the bottom plate 6, and one end of the connecting rod 22 is provided with a limiting shaped cam 25, and the limiting shaped cam 25 can adjust the distance between the bottom plate 6 and the ear picking plate 21. The ear picking component also includes a shock absorber 27 arranged on the ear picking plate 21, the bottom of the shock absorber 27 is fixed to the ear picking plate 21, and the top is connected to a fixed block 26, and the fixed block 26 is connected to the bottom plate 6. The bottom plate 6 is also rotatably connected to an auxiliary limiting wheel 24, and the auxiliary limiting wheel 24 is perpendicular to the limiting shaped cam 25, and one side of the auxiliary limiting wheel 24 is a cut surface.

[0031] The stem pulling assembly 15 includes two groups of stem pulling rollers 17 symmetrically arranged, and a plurality of stem pulling knives 18 are connected to the outer wall of the stem pulling roller 17. One end of the stem pulling roller 17 is connected to a stem pulling driving member 20, and the stem pulling driving member 20 is connected to the platform 16; the other end of the stem pulling roller 17 is rotatably connected to a fixing frame 19, and the fixing frame 19 is fixed to the bottom of the bottom plate 6; a stem pulling channel is formed between the two groups of stem pulling rollers 17. After the stem pulling assembly 15 pulls the corn stalks downward, the corn is separated from the corn stalks through the material channel between the bottom plates 6. During this operation, the elastic ear picking assembly will squeeze the cam under the action of the corn to adjust the distance between the ear picking plates 21 to just clamp the corn, and then push the corn into the storage space through the harvesting sprocket 8 and the pushing block 5; at the same time, the squeeze between the corn and the ear picking plates 21 is reduced by the shock absorber 27, thereby reducing the damage to the corn kernels.

[0032] The harvesting sprocket 8 is externally connected to the roto-molded cover 2, which covers the harvesting chain 4 and the elastic ear-picking device 7; the end of the roto-molded cover 2 is connected to the straw divider 1, which guides the corn stalks into the material channel. The elastic ear-picking mechanism of this harvesting platform can realize the automatic adjustment of the ear-picking plate 21 to the left and right according to the thickness of the corn stalks during the harvesting operation; during the process of pulling the stems and picking the ears, the compression spring plays an up and down buffering role on the ear-picking plate 21 to reduce the impact force of the corn cobs, and the heightened roto-molded shield can effectively support the stalks to reduce the broken stalks, and can also reduce the bumps and drops of the corn cobs.

[0033] The two sides of the platform 16 are rotatably connected to the straw gatherer 3 for pressing down the corn stalks. When the corn stalks move between the two stem pulling rollers 17 through the straw divider 1, in order to pull the stalks better and faster, the straw gatherer 3 on the top of the cutting platform can be pressed down to press the corn stalks into the stem pulling rollers 17.

[0034] The bottom of the harvesting sprocket 8 on the platform 16 is connected to the driving shaft 31, and the bottom of the driving shaft 31 is connected to the first bevel gear 29. The bottom of the first drive sprocket 14 is also provided with a second bevel gear 30 that cooperates with the first bevel gear 29, and the first bevel gear 29 and the second bevel gear 30 cooperate with each other for vertical transmission; the second bevel gear 30 is fixed on the transverse transmission shaft 28, and a plurality of first drive sprockets 14 are also provided on the transverse transmission shaft 28. A second drive sprocket 12 is also provided on the platform 16, and the first drive sprocket 14 and the second drive sprocket 12 are connected by a drive chain 11, and the second drive sprocket 12 is driven by a driving member 13.

[0035] In this embodiment, a first tensioning wheel 9 is provided on the bottom plate 6 for tensioning the harvesting chain 4 ; a second tensioning wheel 10 is provided on the platform body 16 for tensioning the driving chain 11 .

[0036] The operation process of this fresh corn cutting platform is as follows: S1. The header moves forward, so that the corn stalks enter the header, and the divider 1 guides the corn header into the material channel; S2. The stem pulling assembly 15 rotates to drive the corn stalks to move downward; S3. The straw collecting device 3 rotates to press down the corn stalks; S4. The elastic ear picking device 7 adjusts the distance between the two ear picking plates 21 according to the size of the corn stuck on the ear picking plate 21; S5. The pushing block 5 on the harvesting chain 4 pushes the corn along the material channel into the storage space.

[0037] Embodiment 2: See also Figure 1-Figure 11 The other parts are the same as those in the first embodiment, except that: in the present embodiment, the end of the material channel is connected to the middle of the ear collecting channel, the ear collecting channel comprises an ear collecting cavity 38, the middle of the ear collecting cavity 38 is provided with a corner, the part before the corner is arranged at the bottom of the material conveying channel, the part after the corner is transported upward to the storage space, and the end of the material channel flows to the corner so that the harvested fresh corn can be transported to the storage space. A first ear collecting gear 32 and a second ear collecting gear 36 are respectively provided at both ends of the ear collecting cavity 38. The first ear collecting gear 32 is provided at the bottom of the material channel, and the second ear collecting gear 36 is provided at the end of the material collecting channel. The first ear collecting gear 32 and the second ear collecting gear 36 are connected by an ear collecting chain 33. A plurality of groups of ear collecting plates 34 are arranged at intervals on the ear collecting chain 33. The ear collecting plates 34 are fixed between adjacent chain units of the ear collecting chain 34 by fixing bolts 35. A material receiving cavity is formed between the ear collecting plates 34 and the wall of the ear collecting cavity, so that the corn falls into the material receiving cavity after falling from the material channel and is lifted into the material storage space by the ear collecting chain 33.

[0038] Although the above describes the specific implementation mode of the invention in conjunction with the drawings, it is not intended to limit the scope of protection of the invention. Based on the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without creative work are still within the scope of protection of the present invention.

Claims

1. A fresh corn cutting station, characterized in that: The invention comprises a plurality of groups of harvesting sprockets (8), each group of harvesting sprockets (8) is connected by a harvesting chain (4), the outer side of the harvesting chain (4) is connected to a plurality of pushing blocks (5), and a material channel is formed between adjacent harvesting chains (4); the bottom of the harvesting sprocket (8) on one side is fixed on a bottom plate (6), and the bottom plate (6) is fixed on a platform (16); an elastic ear picking device (7) is also provided on the bottom plate (6), and the elastic ear picking device (7) is arranged on the inner side of the harvesting chain (4); the harvesting sprocket (8) on the other side is fixed on the platform (16); the platform (16) is also connected to a stem pulling component (15) for pulling corn stalks; the stem pulling component (15) is located at the bottom of the elastic ear picking device (7).

2. A fresh corn cutting platform according to claim 1, characterized in that: The elastic ear picking device (7) comprises two groups of ear picking components which are symmetrically arranged, wherein the ear picking components comprise an ear picking plate (21), one side of the ear picking plate (21) is connected to a connecting plate (23), the bottom of the connecting plate (23) is connected to the middle of a connecting rod (22), both ends of the connecting rod (22) are rotatably connected to the side of a bottom plate (6), and a limiting shaped cam (25) is provided at one end of the connecting rod (22), and the limiting shaped cam (25) can adjust the distance between the bottom plate (6) and the ear picking plate (21).

3. A fresh corn cutting platform according to claim 2, characterized in that: The ear picking assembly further comprises a shock absorber (27) arranged on the ear picking plate (21); the bottom of the shock absorber (27) is fixed to the ear picking plate (21); the top is connected to a fixing block (26); and the fixing block (26) is connected to the bottom plate (6).

4. A fresh corn cutting platform according to claim 2, characterized in that: The bottom plate (6) is also rotatably connected to an auxiliary limiting wheel (24), the auxiliary limiting wheel (24) is perpendicular to the limiting special-shaped cam (25), and one side of the auxiliary limiting wheel (24) is a cut surface.

5. The fresh corn cutting platform according to claim 1, characterized in that: The stem pulling assembly (15) comprises two groups of stem pulling rollers (17) arranged symmetrically, a plurality of stem pulling knives (18) are connected to the outer walls of the stem pulling rollers (17), one end of the stem pulling roller (17) is connected to a stem pulling driving member (20), and the stem pulling driving member (20) is connected to the platform (16); the other end of the stem pulling roller (17) is rotatably connected to a fixed frame (19), and the fixed frame (19) is fixed to the bottom of the base plate (6); a stem pulling channel is formed between the two groups of stem pulling rollers (17).

6. The fresh corn cutting table according to claim 1, characterized in that: The harvesting sprocket (8) is externally connected to a roto-molded cover (2), and the roto-molded cover (2) covers the harvesting chain (4) and the elastic ear picking device (7); the end of the roto-molded cover (2) is connected to a straw divider (1), and the straw divider (1) guides the corn stalks into the material channel.

7. The fresh corn cutting platform according to claim 1, characterized in that: The two sides of the platform (16) are rotatably connected to the corn stalk gatherer (3) for pressing down the corn stalks.

8. The fresh corn cutting table according to claim 1, characterized in that: The bottom of the harvesting sprocket (8) on the platform (16) is connected to a driving shaft (31), and the bottom of the driving shaft (31) is connected to a first bevel gear (29). A second bevel gear (30) cooperating with the first bevel gear (29) is also provided at the bottom of the first driving sprocket (14), and the first bevel gear (29) and the second bevel gear (30) cooperate to perform vertical transmission. The second bevel gear (30) is fixed on a transverse transmission shaft (28), and a plurality of first driving sprockets (13) are also provided on the transverse transmission shaft (28). A second driving sprocket (12) is also provided on the platform (16), and the first driving sprocket (13) and the second driving sprocket (12) are connected via a driving chain (11), and the second driving sprocket (12) is driven by the driving member (13).

9. The fresh corn cutting table according to claim 1, characterized in that: A first tensioning wheel (9) is provided on the bottom plate (6) for tensioning the harvesting chain (4); and a second tensioning wheel (10) is provided on the platform body (16) for tensioning the driving chain (11).

10. A method for harvesting corn using the fresh corn harvesting table according to claims 2-4, characterized in that The following steps are involved: S1. The header moves forward, so that the corn stalks enter the header, and the divider (1) guides the corn header into the material channel; S2. The stem pulling assembly (15) rotates to drive the corn stalks to move downward; S3. The straw collecting device (3) rotates to press down the corn stalks; S4. The elastic ear picking device (7) adjusts the distance between the two ear picking plates (21) according to the size of the corn stuck on the ear picking plate (21); S5. The pushing block (5) on the harvesting chain (4) pushes the corn along the material channel into the storage space.

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