Split corn harvester pull roller drive box

Abstract

The detachable corn harvester stalk pulling roller drive box belongs to agricultural machinery; the stalk crushing cutter shaft box shell is detachably installed on the stalk pulling roller gear drive box assembly through the connecting box shell; the power output shaft B and the stalk crushing cutter shaft with the crushing cutter are rotatably installed in the stalk crushing cutter shaft box shell; the bevel gear A is fixed on the power output shaft A of the stalk pulling roller gear drive box assembly; the bevel gear B and the bevel gear C are respectively fixed on the front and rear ends of the power output shaft B; the bevel gear D is fixed on the stalk crushing cutter shaft; the bevel gear A and the bevel gear C are respectively engaged with the bevel gear B and the bevel gear D; and the sealing end cover is detachably fixed on the outer end face of the connecting box shell; the box realizes the adjustment of the row spacing of the stalk pulling roller, adapts to and meets the harvesting operation of different corn row spacings in different regions, has high operation applicability, high generalization degree and high tool use efficiency, and low operation cost.

Description

Technical Field

[0001] This utility model belongs to agricultural machinery, and mainly relates to a split-type combined drive box that is installed on the harvesting platform of a corn harvester for driving the rotation of the stalk pulling roller. Background Technology

[0002] Currently, the stalk pull roller gear drive boxes equipped on corn harvesters in my country, which drive the stalk pull roller and stalk crusher to rotate synchronously, all adopt a rigid integral structure. This means the overall lateral width of the box is large and fixed. Therefore, this structure is only suitable for corn harvesting operations in Northeast China, where corn row spacing is relatively wide. In the Central Plains region of my country, where corn row spacing is smaller than in Northeast China and stalk crushing and returning to the field is not required during corn ear harvesting, the existing rigid integral stalk pull roller drive boxes are completely unsuitable for use in regions such as Henan, Shandong, and Hebei. This results in low versatility, poor adaptability to machine operations, a narrow application range, reduced machine operating efficiency, and increased operating costs. Summary of the Invention

[0003] The purpose of this invention is to address the problems existing in the prior art and, in combination with the different needs of mechanized harvesting operations for corn with varying row spacing, to develop and design a split-type combined corn harvester pull roller drive box, thereby improving the versatility and utilization of corn harvesting equipment and adapting to and meeting the needs of corn harvesting operations with different row spacings and operational requirements.

[0004] The basic design of this utility model is as follows: a detachable and fixed connecting housing is mounted on one end of the stalk roller gear drive box assembly; a stalk crusher shaft housing is fixed on the front end of the connecting housing; a power output shaft B and a stalk crusher shaft with crushing blades are rotatably mounted horizontally and vertically inside the stalk crusher shaft housing; a bevel gear A is fixed on the part of the power output shaft A of the stalk roller gear drive box assembly located inside the connecting housing cavity; bevel gears B and C are fixed on the front and rear ends of the power output shaft B located inside the connecting housing and the stalk crusher shaft housing cavities, respectively; a bevel gear D is fixed on the upper end of the stalk crusher shaft located inside the stalk crusher shaft housing; bevel gears A and C mesh with bevel gears B and D, respectively; and a detachable and fixed sealing end cap is mounted on the vertical outer end face of the connecting housing. This constitutes a split-type combined corn harvester stalk roller drive box.

[0005] This utility model adopts a split-type combined structure for the pull roller drive box. When used for large-row corn harvesting, it can simultaneously complete the picking of ears and the crushing of stalks. When used for small-row corn harvesting, it only picks ears of corn and does not crush stalks. It can be used for both large-row corn harvesting and stalk crushing in Northeast China, and for single ear picking harvesting of small-row corn in Central China. It features a novel and simple structure, easy and convenient adjustment and operation, strong applicability, high degree of versatility and high machine utilization efficiency, and reduced operating costs. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the overall structure of the stalk puller drive box of a modular corn harvester;

[0007] Figure 2 This is a partial cross-sectional schematic diagram of the stalk puller drive box of a split-type corn harvester.

[0008] Part number description in the image:

[0009] 1. Stalk roller gear drive box assembly; 1-1. Power output shaft A; 2. Connecting box housing; 3. Bevel gear A; 4. Sealing end cover; 5. Bevel gear B; 6. Stalk crusher shaft housing; 6-1. Power output shaft B; 7. Bevel gear C; 8. Bevel gear D; 9. Stalk crusher shaft. Detailed Implementation

[0010] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings. A split-type combined corn harvester stalk puller drive box includes a stalk puller gear drive box assembly 1, a detachable fixed connecting box housing 2 on one end of the stalk puller gear drive box assembly 1, a stalk crusher shaft housing 6 fixedly mounted on the front end of the connecting box housing 2, a power output shaft B6-1 and a stalk crusher shaft 9 with crushing blades respectively mounted horizontally and vertically rotatably inside the stalk crusher shaft housing 6, and the power output shaft A1-1 of the stalk puller gear drive box assembly 1 is located at the connecting box housing 2. A bevel gear A3 is fixedly mounted inside the cavity of the connecting housing 2. Bevel gears B5 and C7 are fixedly mounted on the front and rear ends of the power output shaft B6-1, located within the cavities of the connecting housing 2 and the stem shredder shaft housing 6, respectively. A bevel gear D8 is fixedly mounted on the upper end of the stem shredder shaft 9, located within the stem shredder shaft housing 6. Bevel gears A3 and C7 mesh with bevel gears B5 and D8, respectively. A removable sealing end cap 4 is fixedly mounted on the vertical outer end face of the connecting housing 2. All bevel gears A3, B5, C7, and D8 are arc-shaped bevel gears.

[0011] When harvesting corn for wide-row planting, the stalk puller drive box of this split-type corn harvester is mounted on the harvesting platform of the corn harvester via the stalk puller gear drive box assembly 1. The two power output shafts of the stalk puller gear drive box assembly 1 are connected to the two stalk pullers respectively and drive them to rotate in opposite directions to perform stalk pulling and ear picking operations. At the same time, the rotational power of the power output shaft A1-1 drives the stalk crushing blade shaft 9, which is hinged with the crushing blade, to rotate sequentially through bevel gear A3, bevel gear B5, power output shaft B6-1, bevel gear C7, and bevel gear D8, thus completing the stalk crushing and returning to the field operation. When used for single corn harvesting with small row spacing and without the need for stalk crushing and returning to the field, the connecting box housing 2 and the stalk crushing blade shaft housing 6 are removed from the end face of the pull roller gear drive box assembly 1. The sealing end cover 4 is then fixed to the end face of the pull roller gear drive box assembly 1. At this time, the overall lateral width of this utility model is reduced. The relative movement adjustment on the corn harvester's harvesting platform reduces the distance between adjacent pull roller gear drive box assemblies 1, completing the small distance adjustment. During operation, the pull roller is driven to rotate to complete the corn ear picking and harvesting without performing stalk crushing.

[0012] The bevel gears A, B, C, and D all adopt arc-shaped bevel gears, which ensure smooth and stable transmission, low vibration, low noise, and high power transmission, thus guaranteeing the quality and effect of the operation.

Claims

1. A split-type combined corn harvester stalk puller drive box, comprising a stalk puller gear drive box assembly (1), characterized in that: A detachable connecting housing (2) is fixedly mounted on one end of the pull-stem roller gear drive box assembly (1). A stem crusher shaft housing (6) is fixedly mounted on the front end of the connecting housing (2). A power output shaft B (6-1) and a stem crusher shaft (9) with a crusher are rotatably mounted horizontally and vertically inside the stem crusher shaft housing (6). A bevel gear A (3) is fixedly mounted on the part of the pull-stem roller gear drive box assembly (1) where the power output shaft A (1-1) is located inside the cavity of the connecting housing (2). The power output shaft B (6-1) is fixedly mounted with bevel gear B (5) and bevel gear C (7) at the front and rear ends of the connecting box housing (2) and the stem crusher shaft housing (6) respectively. The stem crusher shaft (9) is fixedly mounted with bevel gear D (8) at the upper end of the stem crusher shaft housing (6) inside the stem crusher shaft housing (6). The bevel gear A (3) and bevel gear C (7) mesh with bevel gear B (5) and bevel gear D (8) respectively. A detachable sealing end cap (4) is fixedly mounted on the vertical outer end face of the connecting box housing (2).

2. The split-type combined corn harvester stalk puller drive box according to claim 1, characterized in that: The bevel gears A (3), B (5), C (7) and D (8) are all arc-shaped bevel gears.

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