Grass discharge cylinder for corn harvester

Abstract

The rear end of the straw outlet cylinder is an input end, the front end of the straw outlet cylinder is a straw outlet end, the front section of the straw outlet cylinder is composed of a cylinder body and an adjustable side plate, the cylinder body is of a welded structure defined by an upper cylinder wall, a lower cylinder wall and a right cylinder wall, and a connecting portion is arranged at the rear end of the left side of the cylinder body. The adjustable side plate is a vertical plate of which the upper part and the lower part are provided with folding edges; a plurality of bolt through holes are formed in the upper folding edge and the lower folding edge; the rear end of the adjustable side plate is fixedly connected with the rear end connecting part of the left side of the barrel body through a bolt. A group of connecting holes close to the inside and a group of connecting holes close to the outside are formed in the side walls of the upper part and the lower part of the cylinder main body along the grass outlet direction; when the bolt through holes in the upper folding edge and the lower folding edge are aligned and connected with a group of connecting holes close to the inner part, the front end of the adjustable side plate and the front end of the barrel main body define a small grass outlet; and when the bolt through holes in the upper and lower folded edges are aligned and connected with a group of connecting holes close to the outside, the front end of the adjustable side plate and the front end of the barrel main body define a large grass outlet. The grass discharging barrel can be prevented from being blocked.

Description

Technical Field

[0001] The utility model belongs to the field of agricultural machinery, in particular to a debris discharge system of a corn harvester, and in particular relates to a grass discharge barrel for a corn harvester. Background Art

[0002] Current corn harvesters typically feature a weed discharge device located behind the exhaust fan to remove debris such as corn stalks and leaves. This discharge device is typically a welded, integral structure with a fixed outlet size. In recent years, increasingly stringent pesticide requirements for seed corn and fresh corn have made it difficult to remove weeds from cornfields with pesticides. This leads to an overabundance of weeds during harvest. Furthermore, when corn stalks are thick, during actual harvesting operations, a large amount of weeds mixed with corn stalks can enter the weed discharge device, causing it to become clogged. This can severely impact the harvesting speed of the entire vehicle, resulting in losses for the user. Utility Model Content

[0003] Aiming at the deficiencies of the prior art, the utility model provides a grass outlet barrel for a corn harvester which has a simple structure and can adjust the width of the grass outlet.

[0004] The above-mentioned purpose of the utility model is achieved through the following technical solutions:

[0005] The yoke is configured to engage a plurality of guide rails and a plurality of guide rails connected to the yoke at the rear end of the yoke, wherein the guide rails are configured to engage a plurality of guide rails and a plurality of guide rails. The guide rails are configured to engage a plurality of guide rails and a plurality of guide rails connected to the yoke at the rear end of the yoke.

[0006] When the bolt holes on the upper and lower folding edges of the adjustable side panels are aligned with a group of connection holes on the cylinder body close to the inside and are fixed by bolts, the front end of the adjustable side panels and the front end of the cylinder body form a small grass outlet;

[0007] When the bolt through holes on the upper and lower folded edges of the adjustable side panel are aligned with a group of connection holes on the cylinder body close to the outside and are fixed by bolts, the front end of the adjustable side panel and the front end of the cylinder body form a large grass outlet.

[0008] Moreover, a group of connection holes near the inside are long circular holes extending along an oblique line, and the oblique line is set inwardly from the rear end to the front end of the grass discharge tube; a group of connection holes near the outside are circular holes.

[0009] Moreover, the front section of the grass discharging tube and the rear section of the grass discharging tube are connected at an angle of 95 degrees.

[0010] The advantages and positive effects of the utility model are:

[0011] The grass outlet tube of the utility model adopts the form of three-side welding and one-side adjustable movable connection. This structural form can realize the adjustment of the size of the grass outlet, so that the size of the grass outlet can be flexibly adjusted according to the actual harvesting operation conditions. On the one hand, it solves the problem that the width of the existing grass outlet cannot be adjusted. On the other hand, by selecting the grass outlet of appropriate size, the balance between the air volume and width of the grass outlet tube is better achieved, thereby avoiding the blockage of the grass outlet tube due to weeds carried by long straw, which is beneficial to ensuring the harvesting efficiency of the harvester. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic structural diagram of the utility model in a state of a large grass outlet;

[0013] Figure 2 It is a structural schematic diagram of the utility model in a state of a small grass outlet. DETAILED DESCRIPTION

[0014] The structure of the present invention will be further described below with reference to the accompanying drawings and through examples. It should be noted that the present examples are descriptive rather than restrictive.

[0015] A corn harvester's grass discharge tube, see Figure 1 and Figure 2The grass discharging tube includes a grass discharging tube rear section 1 and a grass discharging tube front section 2. The grass discharging tube front section is connected to the grass discharging tube rear section at an angle. In the present utility model, the angle is preferably 95°. The port of the grass discharging tube rear section is the input end, and the port of the grass discharging tube front section is the grass discharging outlet end. The input end is fixed to the stalk removal rack, and its input end is used to receive corn stalks, corn leaves and other debris discharged from the impurity removal fan, and after passing through the inner cavity of the grass discharging tube, it is discharged from one side of the harvester through the grass discharging outlet end. The grass discharging tube front section is composed of a cylinder body 2.1 and an adjustable side panel part 2.2. The cylinder body is a welded structure surrounded by three cylinder walls of the upper part, the lower part and the right side, and a connecting part 2.3 is provided at the left rear end. The adjustable side panel adopts a vertical plate with upper and lower folded edges, and a plurality of bolt holes are provided on the upper and lower folded edges. The adjustable side panel is positioned on the left side of the main body of the cylinder. The rear end of the adjustable side panel is fixedly connected to the connection portion at the left rear end of the main body of the cylinder via bolt 2.4. Two sets of connection holes are provided on the upper and lower side walls of the main body of the cylinder, along the direction of grass discharge. The inner set of connection holes utilizes oblong holes 2.1.1 extending along an oblique line that is tilted inward from the rear end to the front end of the grass discharge cylinder. The outer set of connection holes utilizes circular holes 2.1.2.

[0016] This grass discharge tube can adjust the fixed position of the left side panel on the main body of the tube according to the actual situation of the corn field, so as to adjust the width of the grass discharge opening. When the bolt holes on the upper and lower folding edges of the adjustable side panels correspond one-to-one with the set of connecting holes on the inner side of the main body of the tube, and are fixedly connected by bolts 2.8 passing through the bolt holes and the oblong holes, a small grass discharge opening 2.7 (with a smaller width) is formed at the front end of the grass discharge tube. The small grass discharge opening is suitable for harvesting corn in the fall when it matures. When the bolt holes on the upper and lower folding edges of the adjustable side panels correspond one-to-one with the set of connecting holes on the outer side of the main body of the tube, and are fixedly connected by bolts 2.5 passing through the bolt holes and the round holes, a large grass discharge opening 2.6 (with a larger width) is formed at the front end of the grass discharge tube. The large grass discharge opening is suitable for harvesting sweet corn, fresh corn, and plots with more weeds. The utility model solves the problem of a fixed and unadjustable grass discharge opening width. In addition, it better solves the problem of balancing the air volume and width of the grass discharge tube, thereby preventing the grass discharge tube from being blocked by long straw and weeds. It is beneficial to ensure the harvesting efficiency of the harvester.

[0017] In the present invention, the adjustable side plate is made of elastic steel plate. When the size of the grass outlet is adjusted, the elastic deformation portion of the adjustable side plate is the portion close to the rear end bolt connection between the adjustable side plate and the cylinder body.

[0018] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art will understand that various replacements, changes and modifications are possible without departing from the spirit of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A grass discharge barrel for a corn harvester, the grass discharge barrel comprising a grass discharge barrel rear section and a grass discharge barrel front section, the grass discharge barrel front section and the grass discharge barrel rear section being connected at an angle, the grass discharge barrel rear section having a port as an input end, the grass discharge barrel front section having a port as a grass discharge outlet end, the input end being fixed to a stalk removal frame, characterized in that: The front section of the grass-discharging cylinder is composed of a cylinder body and an adjustable side panel, and the cylinder body is a welded structure surrounded by three cylinder walls: the upper part, the lower part and the right side, and a connecting portion is provided at the left rear end; the adjustable side panel is made of elastic steel plate, which is a vertical plate with folded edges at the upper and lower parts, and a plurality of bolt through holes are provided on the upper and lower folded edges; the adjustable side panel is arranged at the left position inside the cylinder body, and the rear end of the adjustable side panel is fixedly connected to the connecting portion of the left rear end of the cylinder body by bolts; a group of connecting holes close to the inside and a group of connecting holes close to the outside are provided on the upper side wall and the lower side wall of the cylinder body along the grass-discharging direction; When the bolt holes on the upper and lower folding edges of the adjustable side panels are aligned with a group of connection holes on the cylinder body close to the inside and are fixed by bolts, the front end of the adjustable side panels and the front end of the cylinder body form a small grass outlet; When the bolt through holes on the upper and lower folded edges of the adjustable side panel are aligned with a group of connection holes on the cylinder body close to the outside and are fixed by bolts, the front end of the adjustable side panel and the front end of the cylinder body form a large grass outlet.

2. The grass discharge barrel for a corn harvester according to claim 1, characterized in that: A group of connection holes near the inside are long circular holes extending along an oblique line, and the oblique line is set inwardly from the rear end to the front end of the grass discharge tube; a group of connection holes near the outside are circular holes.

3. The grass discharge barrel for a corn harvester according to claim 1, characterized in that: The front section of the grass discharging cylinder is connected to the rear section of the grass discharging cylinder at an angle of 95 degrees.

Images