Corn picking mechanism of fresh corn harvester

Abstract

The present invention discloses a corn picking mechanism for a fresh corn harvester. The arrangement frame is sequentially provided with a turning material receiving mechanism, a contact material discharging mechanism, a clamping and conveying mechanism, and a clamping and chopping mechanism from bottom to top. The turning material receiving mechanism includes a pair of turning plates that are arranged with the outer sides lower than the inner sides; the contact material discharging mechanism includes a pair of contact plates that are arranged with the outer sides higher than the inner sides; the clamping and conveying mechanism includes a pair of clamping rollers for clamping stalks and conveying them upward; and the clamping and chopping mechanism includes a pair of chopping rollers for chopping the stalks. The corn stalks are driven upward by the clamping rollers, and the chopping rollers above chop the stalks. When the corn on the stalks reaches the turning plate, it is pushed away and passes through. When the corn reaches the contact plate, it is blocked and separated at the root during the stalks' continued upward conveyance. The corn is then received by the turning plate. The present invention reduces bumps and damage to the corn, thereby improving the qualified rate of fresh corn harvest.

Description

Technical Field

[0001] The present invention relates to agricultural machinery and equipment, in particular to a corn picking mechanism of a fresh corn harvester. Background Art

[0002] Fresh corn refers to young, tender corn with a unique flavor and quality. Compared to regular corn, it is softer in texture. Therefore, the cutting and picking mechanisms of traditional corn harvesters can easily damage the fresh corn during transport, such as crushing and falling. Therefore, fresh corn harvesting machinery must minimize the occurrence of strong crushing and high-altitude dropping during transport. This invention aims to innovate the design of the corn picking mechanism, minimizing damage while ensuring normal harvesting. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a corn picking mechanism for a fresh corn harvester, which can achieve a smoother separation of corn and stalks by upward transportation, reduce the squeezing and impact of corn while processing the stalks in an orderly manner, reduce damage, and improve the qualified rate of fresh corn harvesting.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a corn picking mechanism of a fresh corn harvester, comprising an arrangement frame, wherein the arrangement frame is provided with a turning material receiving mechanism, a resistance material discharging mechanism, a clamping conveying mechanism and a clamping and chopping mechanism in sequence from bottom to top, the turning material receiving mechanism comprises a pair of tilted turning plates, the outer sides of the turning plates are turnably arranged on the arrangement frame, and the pair of turning plates are arranged with the outer sides lower than the inner sides, and the relative inner sides form a gap for the corn stalks to pass through; the resistance material discharging mechanism comprises a pair of tilted resistance plates, the pair of resistance plates are arranged with the outer sides higher than the inner sides, the outer sides of the resistance plates are installed on the arrangement frame, and the relative inner sides form a gap for the corn stalks to pass through; the clamping conveyor The structure includes a pair of clamping rollers, which are used to clamp the stems passing through the upper and lower parts and transport them upward during rotation; the clamping and chopping mechanism includes a pair of chopping rollers, which are used to clamp the stems passing through the upper and lower parts and chop the stems during rotation and discharge them upward; the side edges of the turning and receiving mechanism, the resistance and unloading mechanism, the clamping and conveying mechanism and the clamping and chopping mechanism are open for the entry of corn stems, and the corn stems are driven by the clamping rollers to be transported upward, and the upper chopping rollers chop the stems, and the corn on the stems is pushed away and passed when it reaches the turning plate. The corn is blocked when it reaches the resistance plate and is separated at the root during the process of the stem continuing to be transported upward, and the corn is received by the turning plate and dropped to the outside along the turning plate.

[0005] As an improvement, the turning material receiving mechanism further includes a material receiving portion, which is arranged on the outer side of the turning plate for receiving the falling corn. The material receiving portion is arranged in an inclined state along the front-to-back direction for conveying and collecting the corn backward.

[0006] As an improvement, the material receiving part is a dynamic conveyor belt to transport the corn backward.

[0007] As an improvement, the material receiving part is a smooth metal plate, and the corn is transported by sliding backward under its own weight.

[0008] As an improvement, a plurality of first clearance grooves are provided on the inner side of the turnover plate along the width direction, and the first clearance grooves are used for allowing branches on the corn stalks to pass through.

[0009] As an improvement, a rubber edge is provided on the inner side of the flip plate along the width direction.

[0010] As an improvement, a plurality of second clearance grooves are provided on the inner side of the resistance plate along the width direction, and the second clearance grooves are used for allowing branches on the corn stalks to pass through.

[0011] As an improvement, a cutting edge is provided on the inner side of the resisting plate extending downward along the width direction.

[0012] As an improvement, a blower mechanism is further provided on the upper side of the clamping and chopping mechanism, and the stems chopped by the clamping and chopping mechanism are blown outwards by the blower mechanism and fall back into the field.

[0013] As an improvement, a liftable drag rack is further provided at the lower portion of the arrangement frame. The drag rack is used to support the bottom of the corn stalks and to move upward synchronously when the clamping and conveying mechanism is started to convey the stalks upward.

[0014] Beneficial effects of the present invention:

[0015] 1. Through the specific functional settings of each part in the height direction, the corn stalks are transported upward and chopped, and are blocked and separated from the stalks along the growth direction of the corn, thereby reducing the bumps and damages to the corn and improving the qualified rate of fresh corn harvest.

[0016] 2. The overall mechanism can be used individually on the front of a small harvesting vehicle or arranged in parallel in groups on the front of a large harvesting vehicle. It is flexible to use and has a wide range of application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the front structure of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the flip plate of the present invention.

[0019] Figure 3 It is a schematic structural diagram of the contact plate of the present invention.

[0020] Figure 4 It is a structural schematic diagram of the overturning material receiving mechanism and the conflicting material discharging mechanism of the present invention when they cooperate with corn. DETAILED DESCRIPTION

[0021] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0022] like Figure 1 、 2 , 3, and 4 are specific embodiments of the corn picking mechanism of the fresh corn harvester of the present invention. The drawings only express the mutual coordination relationship between the structures. The positions and size ratios of the specific structures can be reasonably adjusted according to the actual product conditions, and do not limit the scope of protection of the present invention.

[0023] The specific embodiment includes an arrangement frame 1, which is provided with a turning material receiving mechanism 2, a resistance material discharging mechanism 3, a clamping and conveying mechanism 4 and a clamping and chopping mechanism 5 in sequence from bottom to top. The turning material receiving mechanism 2 includes a pair of tilted turning plates 21, the outer sides of the turning plates 21 are flippably arranged on the arrangement frame 1, and the pair of turning plates 21 are arranged with the outer sides lower than the inner sides, and the relative inner sides form a gap for the corn stalks to pass through; the resistance material discharging mechanism 3 includes a pair of tilted resistance plates 31, the pair of resistance plates 31 are arranged with the outer sides higher than the inner sides, the outer sides of the resistance plates 31 are installed on the arrangement frame 1, and the relative inner sides form a gap for the corn stalks to pass through; the clamping and conveying mechanism 4 includes a pair of clamping rollers 41, and the clamping rollers 41 are used to The corn stalks are driven by the clamping rollers 41 to be transported upward, and the upper chopping rollers 51 chop the stalks, and the corn on the stalks are pushed away and passed through when reaching the turning plate 21. The corn is blocked when reaching the contact plate 31 and is separated at the root during the process of the stalks continuing to be transported upward. The corn is received by the turning plate 21 and falls outward along the turning plate 21.

[0024] When the present invention is used, depending on the different harvesting scenarios, the corn picking mechanism can be used alone at the front of a small harvesting vehicle to carry out single-row harvesting of corn in a small field; or it can be used in groups and arranged in parallel at the front of a large harvesting vehicle to carry out multi-row harvesting of corn in a large field. The arrangement frame 1 is installed at the front of the harvester frame, which is arranged after the cutting knife and the conveying mechanism. After the corn stalks are cut, they are conveyed into the space of the corn picking mechanism, specifically the space for accommodating the corn stalks formed between the flipping material receiving mechanism 2, the conflicting material discharging mechanism 3, the clamping conveying mechanism 4 and the clamping and chopping mechanism 5. The flipping material receiving mechanism 2, the conflicting material discharging mechanism 3, the clamping conveying mechanism 4 and the clamping and chopping mechanism 5 are located at the upper part of the space, so that the corn is located below the flipping material receiving mechanism 2 when entering the space.

[0025] The clamping and conveying mechanism 4 and the clamping and chopping mechanism 5 first clamp the upper end of the corn stalk from the top to keep the stalk upright and stable, and the flipping material receiving mechanism 2 and the contact material discharging mechanism 3 assist in keeping the stalk upright on both sides of the stalk.

[0026] In specific implementation, the clamping and conveying mechanism 4 includes a pair of clamping rollers 41, a first driving cylinder 42 that drives the clamping rollers 41 to move closer to and away from each other, and a first driving motor 43 that drives the clamping rollers 41 to rotate. The clamping rollers 41 close and clamp the corn stalks under the drive of the first driving cylinder 42, and convey the stalks upward when the first driving motor 43 is working. Figure 1 As shown, in the initial state, a pair of clamping rollers 41 are driven by the first driving cylinder 42 to separate from each other, providing space for the corn stalks to enter from the side. After the stalks reach between the pair of clamping rollers 41, the first driving cylinder 42 closes the clamping rollers 41 to stably clamp the stalks. When the first driving motor 43 is started, the pair of clamping rollers 41 rotate synchronously to transport the stalks upward.

[0027] In specific implementation, the clamping and chopping mechanism 5 includes a pair of chopping rollers 51, a second driving cylinder 52 that drives the chopping rollers 51 to move closer to and away from each other, and a second driving motor 53 that drives the chopping rollers 51 to rotate. The chopping rollers 51 are driven by the second driving cylinder 52 to close and clamp the corn stalks, and when the second driving motor 53 is working, the stalks are chopped and discharged upwards. Figure 1 As shown, in the initial state, a pair of chopping rollers 51 are driven by the second driving cylinder 52 to separate from each other, providing space for the corn stalks to enter from the side. After the stalks reach between the pair of chopping rollers 51, the second driving cylinder 52 closes the chopping rollers 51 to confine the stalks therebetween. When the second driving motor 53 is started, the pair of chopping rollers 51 rotate synchronously to chop the stalks and discharge them upward.

[0028] In specific implementation, the turning and receiving mechanism 2 includes a pair of tilted turning plates 21 and an elastic member 20 disposed at the lower portion of the turning plates 21. Figure 1 、 4 As shown, a pair of flip plates 21 form an eight-shaped structure in the initial state, and the gap formed between the two is for the stems to pass through, and the two sides abut the stems to help the stems remain upright. When the corn is transported upward and abuts the flip plate 21, the corn tilted outward will push the flip plate 21 upward (see attached). Figure 4 The top of the corn and the ear of corn participate in the action of pushing open the flip plate 21, which plays a good buffering role and does not damage the corn body. During the flipping process, the elastic member 20 is stretched and stores force; after the corn passes the flip plate 21, the elastic member 20 releases the elastic force to reset the flip plate 21, and returns to the original inclined state to wait for receiving the corn.

[0029] When implementing it specifically, Figure 1 As shown, a pair of contact plates 31 form an inverted figure eight structure, with the gap between the two for the stems to pass through, and contact the stems on both sides to help the stems remain upright. When the corn is transported upward and reaches the contact plate 31, it is blocked, and the angle of the corn tilting outwards adapts to the tilt angle of the contact plate 31 (see the attached figure). Figure 4 As the stalks continue to be transported upward, the corn and the stalks will form a downward bending action state until the roots of the corn are broken, thereby completing the disconnection and separation; the fallen corn will directly fall on the flip plate 21 at a closer distance below. This separation action state of the corn and the stalks avoids the impact damage to the corn caused by the traditional corn and stalk separation structure, and the corn is directly received by the flip plate 21 and transported outward, reducing the impact of the corn caused by falling.

[0030] The separation method of the corn and stalks of the present invention better protects the corn, and the corn is directly received and output, minimizing the impact of the corn falling, which can improve the qualified rate of fresh corn harvest. The stalks are continuously transported upward to complete the shredding operation, and can be reused through a collection mechanism or discharge mechanism further provided on the upper part, and then returned to the field as fertilizer. The overall mechanism of the present invention utilizes the upward space for structural arrangement, which reduces the occupied ground space. On the basis of achieving the corn harvesting function, it can greatly reduce the space occupied by the harvester.

[0031] As an improved specific embodiment, the flip material receiving mechanism 2 also includes a material receiving portion 22, which is arranged on the outer side of the flip plate 21 for receiving the falling corn. The material receiving portion 22 is arranged in an inclined state along the front-to-back direction for conveying and collecting the corn backward.

[0032] like Figure 1 、 4As shown, the corn received by the flip plate 21 rolls outward along the inclined surface of the flip plate 21 to the receiving portion 22. The receiving portion 22 is arranged in a front-to-back direction according to the structure of the fresh corn harvester, and then transports the corn backward to the collection box. The receiving portion 22 is set at an angle according to the position of the collection box opening, so that the corn can be transported to the collection box in an orderly manner for transfer.

[0033] As an improved specific implementation method, the material receiving portion 22 is a dynamic conveyor belt for conveying the corn backward.

[0034] During specific implementation, the conveyor belt can provide power to transport the corn, and then the conveyor belt can be arranged obliquely upward to transport the corn to the opening of the collection box at a high place, thereby completing the orderly transfer and collection of corn.

[0035] As an improved specific implementation method, the material receiving portion 22 is a smooth metal plate, and the corn is transported by sliding backward under its own weight.

[0036] In a specific implementation, the metal plate provides a smooth slide for the corn to roll, so that the metal plate can be arranged obliquely downward to transport the corn to a collection box at a lower position for collection.

[0037] As an improved specific implementation manner, a plurality of first clearance grooves 23 are provided on the inner side of the turnover plate 21 along the width direction. The first clearance grooves 23 are used for allowing branches on the corn stalks to pass through.

[0038] like Figure 2 As shown, the stalks also have some branches that will interfere with the flip plate 21 when they reach it. To ensure smoother passage of the branches through the gaps between the flip plates 21, several first clearance grooves 23 are further provided along the width direction. The branches can pass through the first clearance grooves 23 and be transported upward, thus preventing the flip plate 21 from tilting slightly when the friction between the branches and the flip plate 21 is large. The first clearance grooves 23 are also designed to be smaller than the diameter of the stalks and the corn to prevent them from getting stuck.

[0039] As an improved embodiment, a rubber edge 24 is provided on the inner side of the flip plate 21 along the width direction.

[0040] like Figure 2 As shown, after the corn passes through the flip plate 21, the elastic member 20 releases the elastic force to reset the flip plate 21. The inner edge of the flip plate 21 and the corn husk will scratch each other. By providing a rubber edge 24, the edge of the flip plate 21 is prevented from scratching the corn husk, ensuring that the appearance of the corn is intact and undamaged.

[0041] As an improved specific implementation manner, a plurality of second clearance grooves 32 are provided on the inner side of the resistance plate 31 along the width direction, and the second clearance grooves 32 are used for allowing branches on the corn stalks to pass through.

[0042] like Figure 3 As shown, the stalks also have some branches, which will abut against the abutment plates 31 when they reach them. To improve the smoothness of the branches passing through the gaps between the abutment plates 31, several second clearance grooves 32 are further provided along the width direction. The branches can pass through the second clearance grooves 32 and be transported upward, thereby preventing the branches from breaking off when the resistance between the branches and the abutment plates 31 is large, thereby preventing the branches from falling onto the flip plate 21 and being collected. The size of the second clearance grooves 32 is designed to be smaller than the diameter of the stalks and corn to prevent them from getting stuck.

[0043] As an improved embodiment, a cutting edge 33 is provided on the inner side of the contact plate 31 and extends downward along the width direction.

[0044] like Figure 1 、 4 As shown, when the corn is transported upward and reaches the resistance plate 31, it is blocked and the cutting blade 33 will resist the root of the corn to produce a cutting mark. As the stalk continues to be transported upward, the bending action will guide the corn and the stalk to separate from the fragile cutting mark position, thereby making the separation of the corn smoother and reducing the squeezing time of the corn and the resistance plate 31.

[0045] As an improved specific implementation method, a blower mechanism 6 is further provided on the upper side of the clamping and chopping mechanism 5 , and the stems chopped by the clamping and chopping mechanism 5 are blown outward by the blower mechanism 6 and fall back into the field.

[0046] like Figure 1 As shown, for the stems chopped by the clamping and chopping mechanism 5, a blower mechanism 6 is provided to directly blow the stem residues that have become lighter and more scattered after being chopped out directly from the space where the corn picking mechanism is located to the outside. On the one hand, the chopped stems are not allowed to fall and pollute the lower mechanism. On the other hand, the chopped stems are directly dropped back into the field and can be recycled as fertilizer, which also saves the collection and processing process.

[0047] As an improved specific implementation method, a liftable carriage 7 is further provided at the lower portion of the arrangement frame 1. The carriage 7 is used to support the bottom of the corn stalks and to move upward synchronously when the clamping and conveying mechanism 4 is started to convey the stalks upward.

[0048] like Figure 1As shown, before the clamping and conveying mechanism 4 clamps and positions the stalks, the corn stalks can be supported by the trailer 7 provided at the bottom. The trailer 7 can be kept consistent with the height of the cutting knife for cutting the roots of the stalks at the front in its initial state. When the clamping and conveying mechanism 4 is started, the trailer 7 can be driven up by, for example, a cylinder to support the corn stalks, thereby improving the stability of the stalk transportation; the rising support distance can be selected according to needs. After the corn stalks are transported and chopped and the corn is separated, the overall weight will be reduced to a certain extent, and the auxiliary support of the trailer 7 will no longer be needed. The trailer 7 can be reset to wait for the support of the next stalk.

[0049] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the principles of the present invention are within the scope of protection of the present invention. It should be noted that improvements and modifications that do not depart from the principles of the present invention are within the scope of protection of the present invention.

Claims

1. A corn picking mechanism for a fresh corn harvester, characterized by: The invention comprises an arrangement frame (1), wherein the arrangement frame (1) is provided with a turning material receiving mechanism (2), a resisting material discharging mechanism (3), a clamping conveying mechanism (4) and a clamping and chopping mechanism (5) in order from bottom to top, wherein the turning material receiving mechanism (2) comprises a pair of tilted turning plates (21), the outer sides of the turning plates (21) are turnably arranged on the arrangement frame (1), and the pair of turning plates (21) are arranged with the outer sides lower than the inner sides, and the relative inner sides form a gap for corn stalks to pass through; the resisting material discharging mechanism (3) comprises a pair of tilted resisting plates (31), the pair of resisting plates (31) are arranged with the outer sides higher than the inner sides, the outer sides of the resisting plates (31) are installed on the arrangement frame (1), and the relative inner sides form a gap for corn stalks to pass through; the clamping and conveying mechanism (4) comprises a pair of clamping rollers (41), the clamping rollers (41) The rollers (41) are used to clamp the stalks passing through the upper and lower parts and transport them upwards while rotating; the clamping and chopping mechanism (5) includes a pair of chopping rollers (51), and the chopping rollers (51) are used to clamp the stalks passing through the upper and lower parts and chop the stalks while rotating and discharge them upwards; the middle of the turning and receiving mechanism (2), the contact and discharge mechanism (3), the clamping and conveying mechanism (4) and the clamping and chopping mechanism (5) is opened for the corn stalks to enter, and the corn stalks are driven by the clamping rollers (41) to be transported upwards, and the upper chopping rollers (51) chop the stalks, and the corn on the stalks is pushed away and passed when it reaches the turning plate (21), and the corn is blocked when it reaches the contact plate (31) and is separated at the root during the process of the stalks continuing to be transported upwards, and the corn is received by the turning plate (21) and dropped outwards along the turning plate (21); A plurality of first clearance grooves (23) are provided on the inner side of the turnover plate (21) along the width direction, and the first clearance grooves (23) are used for allowing branches on the corn stalks to pass through; A liftable drag rack (7) is also provided at the lower portion of the arrangement frame (1). The drag rack (7) is used to support the bottom of the corn stalks and to move upward synchronously when the clamping and conveying mechanism (4) is started to convey the stalks upward.

2. The corn picking mechanism of the fresh corn harvester according to claim 1, characterized in that: The turning and receiving mechanism (2) further comprises a receiving portion (22), the receiving portion (22) being arranged outside the turning plate (21) for receiving the falling corn, and the receiving portion (22) being arranged in an inclined state along the front-to-back direction for conveying and collecting the corn backward.

3. The corn picking mechanism of the fresh corn harvester according to claim 2, characterized in that: The material receiving portion (22) is a dynamic conveyor belt for conveying the corn backward.

4. The corn picking mechanism of the fresh corn harvester according to claim 2, characterized in that: The receiving portion (22) is a smooth metal plate, and the corn is transported by sliding backwards under its own weight.

5. A corn picking mechanism for a fresh corn harvester according to any one of claims 1 to 4, characterized in that: A rubber edge (24) is provided on the inner side of the flip plate (21) along the width direction.

6. A corn picking mechanism for a fresh corn harvester according to any one of claims 1 to 4, characterized in that: A plurality of second clearance grooves (32) are provided on the inner side of the resistance plate (31) along the width direction, and the second clearance grooves (32) are used for allowing branches on the corn stalks to pass through.

7. A corn picking mechanism for a fresh corn harvester according to any one of claims 1 to 4, characterized in that: A cutting blade (33) is provided on the inner side of the contact plate (31) extending downward along the width direction.

8. A corn picking mechanism for a fresh corn harvester according to any one of claims 1 to 4, characterized in that: A blower mechanism (6) is also provided on the upper side of the clamping and chopping mechanism (5), and the stems chopped by the clamping and chopping mechanism (5) are blown outward by the blower mechanism (6) and fall back into the field.

Images