Structural arrangement for a snapping roller

Abstract

The invention relates to a structural arrangement for a snapping roller provided with a cutting and pulling assembly that comprises a blade (20) and a fin (21), wherein said fin (21) has a continuous edge (211) and an edge with indentations (212), such that the edge with indentations (212) is positioned at 90 degrees to the edge with indentations (2021) of the blade (20), preventing the plant from slipping during pulling and cutting, providing an area that holds the plant and increases the pulling force.

Description

CONSTRUCTIONAL ARRANGEMENT IN A STRIPPER ROLLER

[0001] This utility model describes a constructive arrangement in a stripping roller equipped with a cutting and pulling assembly that includes a fin and blade with a profile featuring indentations that prevent the plant from slipping during pulling and cutting, providing an area that locks the plant and increases the pulling force.

[0002] Corn harvesting platforms are structures mounted on the front of agricultural combine harvesters. During operation, the corn harvesting platforms pull down adjacent rows of corn plants and remove the corn stalks from the plants using husking rollers.

[0003] The state of the art describes stripping rollers with blades or fins that increase the contact area with the plant, thus increasing the efficiency for pulling, cutting, or tearing the plant.

[0004] Document BR202021 019665, from the same author, describes a constructive arrangement in a collecting roller applied to a corn harvesting platform that features a surface equipped with sets of sequentially arranged blades with distinct and complementary functions, expanding the contact area with the plant and allowing it to grip and drag the plant, followed by cutting or tearing the plant to segment it and facilitate the decomposition of the plant remains that are deposited on the soil.

[0005] Document PI0805559 describes a fin system for a harvester unit puller roller for a corn harvester, comprising an elongated central body with four pairs of fins, where each pair of fins forms a single piece, attachable to the central body by at least one fastening means.

[0006] Document BR1 32018005344 describes a provision. A constructive corn gathering roller equipped with seven-sided polygonal fin seating bases reduces the possibility of system assembly errors.

[0007] Document BR1 02017006894 describes a constructive arrangement of a corn gathering roller with replaceable fins, equipped with a central body with tips, having a quadrilateral shape, and featuring fins with various configurations to aggressively pull the corn stalk.

[0008] Document BR202013003019 describes a gathering roller for a corn harvester platform that includes an upper fin and a lower fin, a rear tip, a front tip, and a central support bracket, where the front tip contains a tip that receives a spacer and a bearing by fitting, eliminating the welding process of the fins.

[0009] Document BR202021019665 describes a rotating roller with a surface equipped with sets of sequentially arranged blades with distinct and complementary functions, increasing the contact area with the plant and allowing it to grip and drag the plant, followed by cutting or tearing the plant to segment it and facilitate the decomposition of the plant remains deposited on the soil.

[0010] Grain losses worldwide, occurring at all stages of the production chain, from the field to the consumer's table, represent significant amounts (National Supply Company. (2023). Grain Loss in Brazil and the World: dimension, representativeness and diagnosis. Section 1. V. 31). In corn harvesting, for example, the main sources of loss are located at the husking platform, due to the failure to collect the ears or threshed grains caused by impact on the platform.

[0011] One of the problems concerns the traction efficiency of the stripping rollers. Increasing the contact area with the plant increases efficiency. However, given the smooth edge, there may be points where the plant slips, which is undesirable.

[0012] Thus, the object of the present utility model is a stripping roller equipped with an assembly that includes fins and blades arranged linearly between the ends of the stripping roller, with the outer edge of the fins and blades having a serrated profile that prevents the plant from coming loose during pulling and cutting, increasing the traction capacity.

[0013] In order to better describe the constructive arrangement in a stripping roller, the following figures are presented:

[0014] Figure 1 shows a perspective view of the cutting platform.

[0015] Figure 2A shows a perspective view of the stripping roller, and Figure 2B shows a constructive variation with additional fins.

[0016] Figure 3 shows an exploded view of the stripping roller.

[0017] Figure 4 shows an enlarged cross-sectional view highlighting the positioning of the blades and fins on the stripping roller.

[0018] The constructive arrangement in a stripping roller, object of the present utility model, comprises a stripping roller fixed to a cutting platform (100), said stripping roller having a central cubic profile (10) which constitutes the central axis. In this central cubic profile (10) perforations (11) are provided where the traction and cutting assemblies (20) and (21) responsible for traction and cutting of the plant during the stripping process are fixed.

[0019] Each pull and cut set includes a blade (20) and a blades (21) fixed to each other and to the central profile (10) by means of a screw (P) that passes through perforations (201) and (211), respectively, on the surface of the blade (20) and the blade (21) and the perforations of the central profile (11). On each of the faces of the cubic profile (10) pairs of blades (20) and fins (21) are fixed.

[0020] The blade (20) comprises a flat body fixed adjacent to the lateral face of the central profile (10), said blade having a projecting edge (202) in relation to the surface of the profile (10). The projecting edge (202) has indentations (2021).

[0021] The fin (21) comprises an “L” shaped body, said fin (21) fixed onto the blade (20). The fin (21) has a continuous edge (211) and an edge with indentations (212), such that said edge (212) is disposed at 90 degrees in relation to the edge with indentations (2021) of the blade (20).

[0022] The indentations (2021) and (212) have different shapes, which can be straight, inclined, among others.

[0023] Optionally, on each flat face of the central cubic profile (10) is fixed a complementary blind fin segment (30) aligned with the end of said central profile (10) and parallel with the blade (20) and fin (21) assembly, as described in document BR202023008288, from the same holder and presented in figure 2B.

[0024] In operation, the plant is locked between the indentations (2021) and (212), increasing the traction force of the stripping roller.

Claims

CLAIMS:

1. CONSTRUCTION DISPOSITION IN DE-PIGATOR ROLLER fixed to a cutting platform (100), said de-pigator roller having a cubic-shaped central profile (10) provided with perforations (11) for fixing traction and cutting assemblies (20) and (21) on each of the faces of the cubic profile (10), said cutting and traction assembly including a blade (20) and an “L” shaped fin (21) fixed to each other and to the central profile (10) by means of a screw (P) that passes through perforations (201) in the surface of the blade (20), perforations (211) in the surface of the fin (21) and the perforations of the central profile (11), the blade (20) having a projecting edge (202) in relation to the surface of the profile (10) and the fin (21) fixed on the blade (20), characterized in that the fin (21) has a continuous edge (21 1) and an edge with indentations (212), so that the indented edge (212) is arranged at 90 degrees in relation to the indented edge (2021) of the blade (20).

2. CONSTRUCTION DISPOSITION IN A DE-PIGATOR ROLLER, according to claim 1, characterized in that it presents on each flat face of the cubic central profile (10) a complementary blind fin segment (30) aligned with the end of said central profile (10) and parallel with the blade (20) and fin (21) assembly.

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