A new type of corn ear picking roller

Abstract

The utility model discloses a novel corn ear picking roller, is provided with screw rod at the front end of main roller body, is provided with import cone head on the screw rod, is provided with helical guide strip on main roller body, is provided with a plurality of pieces of pull bar plate on the rear section of main roller body, is provided with helical projection on the pull bar plate, and the helical projection is divided into two sections and sets, and the helical projection of front section and helical guide strip are same in the direction of rotation, and the helical projection of rear section and helical guide strip are opposite in the direction of rotation. In working, the helical guide strip on the adjacent two main roller bodies is cooperated to realize that straw drives stem and leaf and corn cob to convey to the rear, and the separation efficiency of corn cob and straw can be improved through increasing the contact area of helical guide strip and straw, furthermore, the helical projection of opposite design realizes the guidance of the separation of stem and leaf, straw, realizes the reverse push of stem and leaf, straw, prevents stem and leaf from being accumulated in the last end of main roller body, causes straw to be blocked.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural equipment accessories technology, and in particular relates to a new type of corn picking roller. Background Technology

[0002] As is well known, a corn picking roller is a header accessory for corn harvesters. It is a specialized device that guides corn stalks into the harvesting machinery during its movement. This device uses a rotating corn picking roller to transport the stalks along with the leaves to the corn cob separator. Currently, the commonly used corn picking rollers on the market have a ring of spiral-shaped ear hook protrusions around the roller body. The stalks are squeezed and transported through adjacent spiral ear hook protrusions. However, this type of corn picking roller has the following drawbacks: 1. When the stalks and corn with ears are transported backwards simultaneously, in order to improve the collection efficiency of corn ears, reinforcing ribs are usually set on the spiral-shaped ear hook protrusions. These ribs promote the dematerialization efficiency of corn ears and stalks. However, these ribs are rod-shaped, and their contact surface with the corn ears is too narrow, resulting in low removal efficiency of stalks and corn ears, which needs to be improved; 2. When the currently installed ribs rotate at high speed on the corn picking roller, their sides directly collide with the corn and corn ears, which easily causes an increase in the number of kernels in the ears, resulting in an increased damage rate.

[0003] In response to the above-mentioned problems encountered in this field, as people skilled in the art, there is an urgent need to design a corn picking roller that can achieve stable compression and conveying of corn stalks, while also preventing damage to the kernels and avoiding the accumulation of stalks at the end of the corn picking roller during the conveying process. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this utility model provides a novel corn picking roller with a novel and simple structural design. It can achieve stable straw transportation and effectively prevent straw from being crushed and grains from falling off or being damaged during transportation.

[0005] To achieve the above technical objectives, the present invention adopts the following solution: The present invention discloses a novel corn picking roller, which includes a main roller body. A screw is provided at the front end of the main roller body, and an inlet cone is provided on the screw. A spiral guide bar is provided on the main roller body. Several tension plates are provided on the rear section of the main roller body. Spiral protrusions are provided on the tension plates. The spiral protrusions are divided into two sections. The front section of the spiral protrusions has the same rotation direction as the spiral guide bar, and the rear section of the spiral protrusions has the opposite rotation direction to the spiral guide bar.

[0006] The aforementioned several tension plates are evenly distributed on the main roller body with the axis as the center. The aforementioned tension plates are of different lengths and are welded to the main roller body in an uneven manner.

[0007] The width of the tie plate is more than 1 cm. It is attached to the surface of the main roller in a sheet-like structure, which can increase the attachment area and improve the contact area between the tie plate and the ears of leaves.

[0008] The aforementioned tensioning plate has a gradually varying thickness, with one side being thinner and the other thicker. When in contact with the straw, the gradually varying structure achieves compression contact, which can avoid collisions with the corn crop.

[0009] When the main rollers are installed and used, they are installed in two synchronous and symmetrical positions. The two main rollers are inclined and the gap between them gradually decreases.

[0010] This utility model has the following practical effects: It has a simple structure. A screw is installed at the front end of the main roller, and an inlet cone is mounted on the screw. A spiral guide bar is installed on the main roller. Several tension plates are installed on the rear section of the main roller, and spiral protrusions are installed on the tension plates. These spiral protrusions are divided into two sections: the front section rotates in the same direction as the spiral guide bar, while the rear section rotates in the opposite direction. During operation, the spiral guide bars on adjacent main rollers work together to convey the straw, stems, and corn cobs backward. By increasing the contact area between the spiral guide bar and the straw, the separation efficiency of the corn cobs and straw is improved. Furthermore, the spiral protrusions with opposite rotation directions guide the separated stems and straw, achieving reverse pushing of the stems and straw and preventing the stems and leaves from accumulating at the rear end of the main roller, thus preventing straw blockage. Through the above structural design, this utility model has a significant improvement effect, effectively increasing straw detachment efficiency and preventing straw accumulation, making it an ideal new type of corn picking roller. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0012] Figure 2 This is a schematic diagram of the structure of the present invention in use.

[0013] In the figure: 1. Main roller body, 2. Spiral guide bar, 3. Tie plate, 31. Front spiral protrusion, 32. Rear spiral protrusion, 33. Thick-walled end, 34. Thin-walled end, 4. Screw, 5. Guide cone, 51. Cone spiral protrusion, 6. Mounting frame, 61. Fixing ring, 7. Gap. Detailed Implementation

[0014] To make the structural principle and usage effect of this utility model more apparent, the following describes this utility model in conjunction with specific embodiments.

[0015] Referring to the attached drawings, a novel corn ear-picking roller includes a main roller body 1 with a diameter of 75 mm. An inlet cone 5 is provided at the lower end of the main roller body 1, and a spiral protrusion 51 is provided around the inlet cone 5. The top end of the main roller body 1 is a drive end, used for drive installation with external equipment. A spiral guide bar 2 is provided on the main roller body 1, mainly used for spiral compression during the backward conveying of straw.

[0016] Several tension plates 3 are provided on the rear section of the main roller body 1. These tension plates have spiral protrusions. In this embodiment, the spiral protrusions are divided into two sections: a front spiral protrusion 31 and a rear spiral protrusion 32. The front spiral protrusion 31 rotates in the same direction as the spiral guide strip 2, while the rear spiral protrusion 32 rotates in the opposite direction. The purpose of this design is to use the spiral guide strips 2 on adjacent main roller bodies 1 to facilitate the rearward transport of straw, stems, and corn cobs. By increasing the contact area between the spiral guide strip 2 and the straw, the separation efficiency of the corn cobs and straw can be improved. Furthermore, the spiral protrusions with opposite rotation directions guide the separated stems and straw, achieving reverse pushing of the stems and straw and preventing the stems and leaves from accumulating at the rear end of the main roller body 1, thus avoiding straw blockage.

[0017] Furthermore, in this embodiment, the plurality of reinforcing plates 3 are evenly distributed on the main roller body 1 with the axis as the center. The plurality of reinforcing plates 3 are designed with different lengths and are welded to the main roller body 1 in an irregular manner. When the main roller body 1 rotates at high speed, the frequency of collision between the reinforcing plates 3 and the straw and corn can be increased, thereby improving the separation efficiency of the two.

[0018] The present invention designs the width of the tension plate 3 to be more than 1 cm. In this embodiment, it is designed to be 2 cm wide. It is attached to the surface of the main roller body 1 in a sheet-like structure, which can increase the attachment area, increase the contact area between the tension plate and the ear of leaves, thereby increasing the extrusion area of ​​the two and improving the separation efficiency.

[0019] This invention elevates the reinforcing plate 3 from a rod shape to a plate shape to increase the extrusion surface and improve the straw detachment effect. However, in actual use, the high-speed rotating main roller 1 causes the reinforcing plate 3 to collide directly with the straw, which can damage the grains. To avoid this damage while improving the crushing effect of the reinforcing plate 3, this invention designs the reinforcing plate 3 with a gradually changing thickness structure, with one side thin and the other side thick. When in contact with the straw, the side that contacts the straw first needs to reduce the collision force, and the extrusion contact is achieved with the gradually changing structure. This structure can avoid collision with the corn crop. Therefore, the two sides of the reinforcing plate 3 are a thick-walled end 33 and a thin-walled end 34, respectively. When welding and assembling, the thin-walled end 34 is designed on the front side of rotation, and the thick-walled end 33 is designed on the rear side of rotation.

[0020] like Figure 2 As shown, during installation and use, the main roller body 1 consists of two main roller bodies 1 installed simultaneously and symmetrically. Each of the two main roller bodies 1 is equipped with a fixing ring 61, which secures the mounting frame 6 to the main roller body 1. Furthermore, the two main roller bodies 1 are inclined, and the gap 7 between them gradually decreases. The purpose of this design is to achieve the collection of straw and corn through a wider gap 7, and to achieve the outward compression of the corn cob through a narrower gap 7, thereby increasing the compression force and improving the separation efficiency of straw and corn cob.

[0021] Through the above structural design, this utility model has a significant improvement effect, which can effectively improve the straw detachment efficiency and prevent straw accumulation. It is an ideal new type of corn picking roller.

Claims

1. A novel corn picking roller, characterized in that: It includes a main roller body, a screw is provided at the front end of the main roller body, and an inlet cone is provided on the screw; a spiral guide bar is provided on the main roller body; a number of tie plates are provided on the rear section of the main roller body, and spiral protrusions are provided on the tie plates. The spiral protrusions are divided into two sections, the front section of the spiral protrusions has the same rotation direction as the spiral guide bar, and the rear section of the spiral protrusions has the opposite rotation direction to the spiral guide bar.

2. The novel corn picking roller as described in claim 1, characterized in that: The aforementioned several tension plates are evenly distributed on the main roller body with the axis as the center. The aforementioned tension plates are of different lengths and are welded to the main roller body in an uneven manner.

3. The novel corn picking roller as described in claim 1, characterized in that: The width of the tie plate is more than 1 cm, and it is attached to the surface of the main roller in a sheet-like structure.

4. The novel corn picking roller as described in claim 1, characterized in that: The aforementioned tie plate has a gradually varying thickness, with one side being thinner and the other side being thicker.

5. A novel corn picking roller as described in claim 1, characterized in that: When the main rollers are installed and used, they are installed in two synchronous and symmetrical positions. The two main rollers are inclined and the gap between them gradually decreases.

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