Cutting table of corn harvester

Abstract

The utility model belongs to the technical field of corn harvesting, and particularly relates to a corn harvester cutting table which comprises a flail knife gearbox, two connecting frames are arranged below the flail knife gearbox, the length of the connecting frame on the left side is larger than that of the connecting frame on the right side, a flail knife II is arranged below the connecting frame on the left side, and the flail knife II is arranged below the connecting frame on the right side. A first flail knife is arranged below the connecting frame on the right side, the horizontal height of the first flail knife is smaller than that of the second flail knife, an ear picking gear box is arranged above the flail knife gearbox, and a bevel gear is arranged above the ear picking gear box. Through the arrangement of the connecting frame, the purposes of chopping straws and improving the straw chopping efficiency of the small-row-spacing corn harvester are achieved, and the weight of the whole device is reduced, so that the overall weight of the header is reduced, the structural change is reduced, the efficiency is improved, and the energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of corn harvesting, in particular to a cutting platform of a corn harvester. Background Art

[0002] During the harvesting process, traditional corn harvesters often have unreasonable cutting component design or inconvenient adjustment, resulting in low harvesting efficiency, high crop damage rate, and difficulty in adapting to corn plants in different growth states.

[0003] Announcement No. CN202476105U discloses a corn harvester cutting table. When faced with corn plants in different growth states, the size of the gap between ears cannot be adjusted, so that the harvester cannot guarantee stable cutting efficiency in different environments, affecting the practicality of the harvester.

[0004] Therefore, it is particularly important to develop a cutting table that can operate efficiently and be flexibly adjusted. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides a cutting table for a corn harvester to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a corn harvester cutting table, comprising a flinger gearbox, a first flinger and a second flinger, a connecting frame is provided below the flinger gearbox, and there are two connecting frames, the connecting frame on the left is longer than the connecting frame on the right, an ear picking gear box is provided above the flinger gearbox, and an adjustable ear picking gap is designed inside the ear picking gear box.

[0007] As a preferred technical solution of the present invention, the connecting frame on the left side is connected to the second swing knife, the connecting frame on the right side is provided with the first swing knife, and a bevel gear is provided above the ear picking gear box.

[0008] As a preferred technical solution of the present invention, adjustment knobs are provided on both sides of the ear picking gear box.

[0009] As a preferred technical solution of the present invention, the first fling knife and the second fling knife are connected to the fling knife gearbox via a connecting block.

[0010] As a preferred technical solution of the present invention, a rotating shaft is provided on the inner side surface of the connecting block.

[0011] As a preferred technical solution of the present invention, a mounting platform is provided on the rear end surface of the connecting frame.

[0012] Compared with the prior art, the present invention provides a corn harvester cutting platform with the following features:

[0013] Beneficial effects:

[0014] The utility model is capable of adjusting the ear picking gap size according to different harvesting scenes by providing an ear picking gear box, so that the harvester can ensure stable cutting efficiency in different environments and avoid affecting the practicality of the harvester. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a side view of the structure of the utility model;

[0017] Figure 3 It is a bottom view of the structure of the utility model.

[0018] In the figure: 1. First fling knife; 2. Second fling knife; 3. Fling knife gearbox; 4. Adjustment knob; 5. Mounting platform; 6. Picking gear box; 7. Bevel gear; 8. Connecting frame; 9. Connecting block; 10. Rotating shaft. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example

[0021] See also Figure 1-3 The utility model provides the following technical solutions: a corn harvester cutting table, including a fling blade gearbox 3, a first fling blade 1 and a second fling blade 2. A connecting frame 8 is provided below the fling blade gearbox 3. There are two connecting frames 8. The connecting frame 8 on the left is longer than the connecting frame 8 on the right. An ear picking gear box 6 is provided above the fling blade gearbox 3. An adjustable ear picking gap is designed inside the ear picking gear box 6.

[0022] Specifically, the connecting frame 8 on the left side is connected to the second flinging knife 2, the connecting frame 8 on the right side is provided with the first flinging knife 1, and a bevel gear 7 is provided above the ear picking gear box 6.

[0023] Specifically, adjustment knobs 4 are provided on both sides of the ear picking gear box 6 .

[0024] Specifically, the first swinging blade 1 and the second swinging blade 2 are connected to the swinging blade gearbox 3 through the connecting block 9.

[0025] Specifically, a rotating shaft 10 is provided on the inner side surface of the connecting block 9 .

[0026] Specifically, a mounting platform 5 is provided on the rear end surface of the connecting frame 8 .

[0027] In this embodiment, (6) is an important component in the cutting table of the corn harvester. Its main function is to transmit the power from the intermediate shaft to the ear picking roller and the straw chain, thereby driving them to work. The specific working principle is as follows:

[0028] Power transmission: The picking gear box receives power from the harvester's output shaft. This power is effectively transmitted to the picking rollers and the reed chain through the gear transmission system inside the picking gear box.

[0029] Driven by the ear-picking rollers: The rollers are a pair of facing rollers with spiral claws on their surfaces, each bearing spiral ribs. They rotate using power transmitted by the ear-picking gearbox. When corn stalks are introduced into the gap between the rollers, the ribs and claws on the rollers pull the stalks downward and backward. However, the cobs, being too thick and hard to pass through the gap between the rollers, are caught by the claws and removed.

[0030] The plowing chain is located at the front of the ear picking rollers and is driven by the power of the plowing gearbox. The plowing chain's main function is to push the corn plants entering the machine backwards, allowing them to enter the working gap of the ear picking rollers, ensuring a smooth ear picking process.

[0031] A fling knife gearbox 3 is added to the lower side of the ear picking gear box 6 to drive the operation of the fling knife. The fling knife active gear drives the transition gears on both sides to drive the fling knives on both sides to rotate relative to each other. The two fling knives are a certain distance apart, thereby forming a shearing effect, thereby achieving the purpose of improving the chopping effect; the ear picking gear box 6 housing and the fling knife gearbox 3 housing are made of high-strength aluminum alloy die-casting, thereby greatly reducing the weight of the entire device and achieving the purpose of lightweight. The use of a new lower transmission structure saves space on both sides of the main transmission box, achieving the purpose of chopping straw in a small row spacing harvester. The change in transmission mode also makes installation easier and maintenance more convenient. The original roller chopping device of the four-row corn harvester consumed 30KW of power, and the newly invented chopping device consumed 8KW of power, saving 73.3%; installation and maintenance are more convenient, and the effect is good after test use.

[0032] The working principle and usage process of the utility model are as follows: the main gearbox of the ear picking gear box 6 transmits the motion downward to the active gear of the flinger gear box through a pair of bevel gears, and the active gear drives the transition gears on both sides to transmit the power to the flinger gear shaft, thereby driving the flingers on both sides to do relative rotational motion, thereby cutting the straw into pieces; the main gearbox housing of the ear picking gear box 6 and the flinger gear box housing are made of high-strength aluminum alloy die-casting, which greatly reduces the weight of the entire gearbox assembly; the corn harvester header ear picking unit gearbox assembly is connected together by 4 bolts on the left and right support plates on both sides, and the front straw-pulling unit body is connected together by 4 bolts on both sides, which is convenient to install. After the overall assembly is completed, it can be connected to the corn header frame through the square openings on the left and right support plates. Not only is the connection and installation convenient, but it is also easier to transmit the force of the entire device to the header frame, thereby increasing service life.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A corn harvester cutting table, comprising a flail gearbox (3), a first flail (1) and a second flail (2), characterized in that: A connecting frame (8) is provided below the fling knife gearbox (3), and there are two connecting frames (8). The connecting frame (8) on the left is longer than the connecting frame (8) on the right. An ear picking gear box (6) is provided above the fling knife gearbox (3), and an adjustable ear picking gap is designed inside the ear picking gear box (6).

2. The corn harvester cutting table according to claim 1, characterized in that: The connecting frame (8) on the left side is connected to the second fling knife (2), and the connecting frame (8) on the right side is provided with the first fling knife (1). A bevel gear (7) is provided above the ear picking gear box (6).

3. The corn harvester cutting table according to claim 2, characterized in that: Adjustment knobs (4) are provided on both sides of the ear picking gear box (6).

4. The corn harvester cutting table according to claim 1, characterized in that: The first fling knife (1) and the second fling knife (2) are connected to the fling knife gearbox (3) via a connecting block (9).

5. The corn harvester cutting table according to claim 4, characterized in that: A rotating shaft (10) is provided on the inner side surface of the connecting block (9).

6. The corn harvester cutting table according to claim 1, characterized in that: The rear end surface of the connecting frame (8) is provided with a mounting platform (5).

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