Semi-feed combine harvester overhang beater cylinder

Abstract

The application discloses a semi-feeding combined harvester cantilever combing type threshing cylinder, which comprises a cylinder shaft, a front baffle arranged perpendicularly to the cylinder shaft, a plurality of cantilevers arranged on the front baffle and parallel to the cylinder shaft, the cantilevers being directed to a feeding end of the threshing cylinder, and threshing teeth arranged on the cantilevers. The semi-feeding combined harvester cantilever combing type threshing cylinder increases the space of the feeding end, improves the feeding smoothness of the threshing cylinder device, and in the rotating process of the threshing cylinder, the front cantilevers press the rice panicles, and the threshing teeth on the rear cantilevers penetrate the rice panicles like combs, so that the threshing teeth on the rear cantilevers brush and thresh the rice panicles in the rotating process of the threshing cylinder, the outward impact of the threshing teeth on the rice panicles is small in the threshing process, and the limitation of the front cantilevers prevents the rice panicles from being hit to the outside and separated from the threshing teeth, thereby improving the threshing efficiency.

Description

Technical Field

[0001] This invention relates to the field of combine harvester technology, and in particular to a threshing drum for a mini combine harvester. Background Technology

[0002] Existing threshing drums consist of a drum shaft, support plates at both ends of the drum shaft, and connecting rods or cylindrical drums welded to the support plates. Threshing teeth are welded onto the connecting rods or cylindrical drums. As the rice ears move along the axial direction of the threshing drum, the rotating threshing teeth collide with the rice ears, achieving threshing. However, this type of threshing drum has drawbacks. The support plates obstruct the feed end, resulting in limited space at the feed end, restricting the feeding amount and reducing the smoothness of rice ear feeding. Furthermore, the threshing teeth push the rice ears outwards during contact, separating them from the teeth. Therefore, the threshing efficiency is low. To ensure a high threshing rate, a large axial dimension of the threshing drum is often required, which is detrimental to the miniaturization of the threshing drum and the combine harvester. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a cantilever comb-type threshing drum for a semi-feeding combine harvester, so as to solve the technical problem that the threshing teeth of the existing threshing drum will impact the rice ears outward during the threshing process, causing the rice ears to separate from the threshing teeth, thereby reducing the threshing efficiency of the threshing drum; and to solve the technical problem that the feed end of the threshing drum is blocked by a support plate, which limits the feeding amount and reduces the smoothness of the feeding of the threshing drum.

[0004] The present invention relates to a cantilever comb-type threshing drum for a semi-feeding combine harvester, comprising a drum shaft, a front baffle perpendicular to the drum shaft, a plurality of cantilever arms parallel to the drum shaft on the front baffle, and threshing teeth on the cantilever arms.

[0005] Furthermore, the semi-feeding combine harvester cantilever comb-type threshing drum also includes a rear baffle plate disposed on the drum shaft, and several connecting rods parallel to the drum shaft are disposed on the front baffle plate and the rear baffle plate, and the connecting rods are provided with re-threshing teeth.

[0006] Furthermore, a cylindrical anti-tangling cover is also provided on the roller shaft, and the end of the cylindrical anti-tangling cover is fixed to the front baffle.

[0007] Furthermore, the cantilever and connecting rod are an integral structure.

[0008] The beneficial effects of this invention are:

[0009] 1. In existing technology, the feed end of the threshing drum is blocked by an end plate, and rice ears can only be fed into the space between the surface of the threshing drum and the upper shell cover of the threshing drum. The feeding space is narrow and not suitable for large feeding operations. The semi-feeding combine harvester cantilever comb threshing drum of the present invention has no baffle at the feed end of the threshing drum, which changes the position of the drum feeding and threshing area. The rice ears first enter the space between the cantilever arms directly in front of the threshing drum axis for threshing, instead of directly entering the area between the threshing drum and the upper shell cover of the drum for threshing. This increases the rice ear feeding space at the feed end and improves the feeding smoothness of the threshing drum device.

[0010] Because the initial feeding of rice involves a large amount of grains and a large volume of rice ears, a large feeding space is required. The cantilever comb-type threshing drum of this semi-feeding combine harvester solves this problem by providing ample feeding space during the initial feeding phase. After the grains are threshed by the cantilever comb teeth, the volume of the rice ears is significantly reduced, allowing them to move smoothly backward and adapt to the narrowing threshing space between the rear section of the threshing drum and the upper cover. Therefore, the cantilever comb-type threshing drum of this semi-feeding combine harvester can accommodate larger feeding volumes and improve operational efficiency.

[0011] 2. This invention relates to a cantilever comb-type threshing drum for a semi-feeding combine harvester. By setting cantilever arms at the feed end of the threshing drum and threshing teeth on these cantilever arms, the rice ears, after entering the feed end of the threshing drum, are positioned between two adjacent cantilever arms in the direction of rotation. During the rotation of the threshing drum, the front cantilever arms press down on the rice ears, while the threshing teeth on the rear cantilever arms penetrate the rice ears like comb teeth. During the rotation of the threshing drum, the threshing teeth on the rear cantilever arms comb and thresh the rice ears. The outward impact of the threshing teeth on the rice ears during threshing is small, and the restraining effect of the front cantilever arms prevents the rice ears from being knocked outwards and separating from the threshing teeth, thereby improving threshing efficiency. Simultaneously, it can reduce the volume of the threshing drum and the weight of the entire machine. Attached Figure Description

[0012] Figure 1 A three-dimensional structural diagram of a cantilever comb-type threshing drum in a semi-feeding combine harvester;

[0013] Figure 2 In order to be in Figure 1 A schematic diagram of the three-dimensional structure after adding a closed circular ring around the middle connecting rod;

[0014] Figure 3 A three-dimensional structural diagram of a cantilever comb-type threshing drum housed within the drum shell;

[0015] Figure 4 This is a schematic diagram of the three-dimensional structure after the upper shell cover of the roller has been removed. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] As shown in the figure, the cantilever comb-type threshing drum of the semi-feeding combine harvester in this embodiment includes a drum shaft 1, a front baffle 2 perpendicular to the drum shaft, a plurality of cantilever arms 3 parallel to the drum shaft on the front baffle, and threshing teeth 4 on the cantilever arms.

[0018] In this embodiment, a semi-feeding combine harvester cantilever comb-type threshing drum is used. The feed end of the threshing drum has no baffle, which increases the feed end space, changes the feed area position, and improves the feeding smoothness of the threshing drum device.

[0019] In this embodiment, the cantilever comb-type threshing drum of the semi-feeding combine harvester has cantilever arms at the feed end and threshing teeth on the cantilever arms. After the rice ears enter the feed end of the threshing drum device, the rice ears are located between the front and rear adjacent cantilever arms. During the rotation of the threshing drum, the front cantilever arms will press down on the rice ears, while the threshing teeth on the rear cantilever arms will penetrate the rice ears like comb teeth. Therefore, during the rotation of the threshing drum, the threshing teeth on the rear cantilever arms comb and thresh the rice ears. During the threshing process, the outward impact of the threshing teeth on the rice ears is small. In addition, the limiting effect of the front cantilever arms prevents the rice ears from being knocked outward and separated from the threshing teeth, thereby improving the threshing efficiency.

[0020] As an improvement to the above embodiment, the cantilever comb-type threshing drum of the semi-feeding combine harvester further includes a rear baffle 5 disposed on the drum shaft, and a plurality of connecting rods 6 parallel to the drum shaft are disposed on the front baffle and the rear baffle, and the connecting rods are provided with double threshing teeth 7; this improvement can further improve the threshing rate of rice ears by setting double threshing teeth.

[0021] As an improvement to the above embodiment, a cylindrical anti-tangling cover 8 is also provided on the roller shaft. The end of the cylindrical anti-tangling cover is fixed to the front baffle. By providing the cylindrical anti-tangling cover 8, the rice straw can be better prevented from getting tangled on the roller shaft.

[0022] As an improvement to the above embodiments, the cantilever and connecting rod are integrated into one structure. This improvement makes the structure of the cantilever comb-type threshing drum of the semi-feeding combine harvester simpler and easier to manufacture.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A cantilever comb-type threshing drum for a semi-feeding combine harvester, comprising a drum shaft, wherein a front baffle perpendicular to the drum shaft is provided on the drum shaft, characterized in that: The front baffle is provided with several cantilever arms parallel to the drum shaft. The cantilever arms face the feed end of the threshing drum. The cantilever arms are provided with threshing teeth. The rice ears first enter the cantilever arms on the front baffle for threshing along the axial direction of the threshing drum, instead of directly entering the area between the threshing drum and the upper cover of the drum for threshing.

2. The cantilever comb-type threshing drum for a semi-feeding combine harvester according to claim 1, characterized in that: It also includes a rear baffle plate disposed on the roller shaft, and several connecting rods parallel to the roller shaft are disposed on the front baffle plate and the rear baffle plate, and the connecting rods are provided with re-release teeth.

3. The cantilever comb-type threshing drum for a semi-feeding combine harvester according to claim 1, characterized in that: The roller shaft is also equipped with a cylindrical anti-tangling cover, the end of which is fixed to the front baffle.

4. The cantilever comb-type threshing drum for a semi-feeding combine harvester according to claim 2, characterized in that: The cantilever and connecting rod are an integral structure.

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