Threshing cylinder of harvester

Abstract

The utility model relates to a threshing cylinder of a harvester, which comprises a first connecting ring, a second connecting ring, a cylinder fixing plate, a connecting shaft, a reinforcing rod, a first rolling rod, a second rolling rod, a threshing plate and a threshing rod, the first connecting rings and the second connecting rings are connected through a plurality of fixing pieces arranged at equal intervals, the fixing pieces are reinforcing rods, the first connecting rings and the second connecting rings are fixed to the roller fixing plate through the reinforcing rods, the number of the first connecting rings is two, and the number of the second connecting rings is two. Two first connecting rings and two second connecting rings are arranged at intervals, a plurality of first rolling rods are arranged between the two first connecting rings at equal intervals, and a plurality of threshing plates are fixedly connected to each first rolling rod at equal intervals. According to the device, the situation that the surfaces of grains are damaged or the grains are clamped between every two threshing teeth is avoided, grains on ears can be removed more thoroughly through the structure, and cost increase caused by secondary processing is avoided.

Description

Technical Field

[0001] This utility model relates to the field of agricultural threshing technology, specifically a threshing drum for a harvester. Background Technology

[0002] Modern agriculture places higher demands on crop harvesting efficiency and quality. With the continuous expansion of planting areas, there is a need for machinery capable of efficiently completing harvesting and threshing tasks. At the same time, consumers are demanding higher quality grains, requiring whole and clean grains, which necessitates continuous improvement of threshing drum technology.

[0003] A search revealed a harvester threshing drum disclosed in Chinese Patent Publication No. CN215935617U. The drum body is a hollow frustum-shaped structure, wider at the bottom than the top. A bottom fixing plate is welded to the bottom of the drum body. A central tube is vertically positioned at the top of the drum body. A middle fixing plate and a top fixing plate are horizontally positioned on the central tube from bottom to top. Four toothed rods are evenly distributed on the side of the drum body. The centers of the top fixing plate and the middle fixing plate are fixedly connected to the central tube, and the edges of the top fixing plate and the middle fixing plate are fixedly connected to the toothed rods. An operating opening is located at the bottom of the side of the drum body, and a cover plate is provided on the operating opening. Several threshing teeth are provided on the outer side of the toothed rods, including straight teeth located at the drum body and bow teeth located above the drum body. The straight teeth and bow teeth are welded and fixed to the toothed rods. A fixing plate, elongated in shape, is welded to the outer side of the toothed rod and located on the left side of the threshing tooth, welded and fixed to the side of the tooth. Threaded components are also welded to the outer side of the toothed rod, parallel to the threshing tooth. The height of the threaded components on the four toothed rods increases sequentially in a counter-clockwise direction. Each threaded component includes a connector, with a threaded protrusion for threshing at the end furthest from the toothed rod. Several fixing holes matching the harvester's drive shaft are provided on the top and bottom fixing plates. This structure makes the entire device appear bulky, reducing rotational speed and affecting threshing efficiency. Therefore, this type of harvester threshing drum requires further improvement, hence this alternative harvester threshing drum is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a harvester threshing drum, which has the advantages of cleaner threshing and lighter equipment, thus solving the problem of grain threshing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a threshing drum for a harvester, comprising a first connecting ring, a second connecting ring, a drum fixing plate, a connecting shaft, a reinforcing rod, a first roller, a second roller, threshing plates, and a threshing rod. The first connecting ring has second connecting rings spaced apart on its inner side, so that the first and second connecting rings are connected by several equally spaced fixing members. There are two of each of the first and second connecting rings, forming a group of two groups spaced apart. Several equally spaced first rollers are provided between two first connecting rings, and several threshing plates are fixedly connected to each first roller at equal intervals.

[0006] Furthermore, a roller fixing plate is provided in the middle of each of the two second connecting rings, and they are spaced apart.

[0007] Furthermore, the first connecting ring, the second connecting ring, and the roller fixing plate are all concentric.

[0008] Furthermore, connecting shafts are fixedly connected to the outer sides of both roller fixing plates.

[0009] Furthermore, the fixing member is a reinforcing rod, and the first connecting ring and the second connecting ring are fixedly connected to the roller fixing plate through the reinforcing rod.

[0010] Furthermore, each of the threshing plates is provided with several threshing teeth at equal intervals, and the angle above or between two threshing teeth is rounded.

[0011] Furthermore, a plurality of equally spaced second rollers are provided between the two second connecting rings, the first rollers and the second rollers are staggered from each other, and a plurality of threshing rods are fixedly connected to each second roller at equal intervals, the threshing rods being staggered from the threshing plate.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] In this invention, the threshing teeth can remove most of the grains from the ears of grain, and the corners above or between two threshing teeth are rounded to prevent damage to the grain surface or getting stuck between the two threshing teeth; the threshing rod and the threshing plate are staggered so that the threshing rod can remove the remaining grains from the ears of grain; the threshing plate and the threshing rod are two different threshing components to remove the grains from the ears of grain more cleanly and avoid secondary processing that would increase costs. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a front structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram showing the distribution of the first and second connecting rings of this utility model;

[0017] Figure 4 This is a schematic diagram of the distribution of the first and second rollers in this utility model;

[0018] Figure 5 This is a partially enlarged structural diagram of the first roller and threshing plate of this utility model;

[0019] Figure 6 This is a partially enlarged structural diagram of the first and second rollers of this utility model.

[0020] In the diagram: 1. First connecting ring; 2. Second connecting ring; 3. Roller fixing plate; 4. Connecting shaft; 5. Reinforcing rod; 6. First roller; 7. Second roller; 8. Threshing plate; 80. Threshing teeth; 9. Threshing rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-6 In this embodiment, a harvester threshing drum includes a first connecting ring 1, a second connecting ring 2, a drum fixing plate 3, a connecting shaft 4, a reinforcing rod 5, a first roller 6, a second roller 7, a threshing plate 8, and a threshing rod 9. The second connecting ring 2 is provided at intervals on the inner side of the first connecting ring 1 so that the first connecting ring 1 and the second connecting ring 2 are respectively connected by a number of equally spaced fixing members. There are two of each of the first connecting ring 1 and the second connecting ring 2. The first connecting ring 1 and the second connecting ring 2 are a group and two groups are provided at intervals. A number of equally spaced first rollers 6 are provided between the two first connecting rings 1. A number of threshing plates 8 are fixedly connected to each first roller 6 at equal intervals.

[0023] A gap is provided between the first connecting ring 1, the second connecting ring 2, and the drum fixing plate 3 to reduce the weight of the entire device. The first roller 6 and the second roller 7 can be made of hollow round tubes, which can also reduce the overall weight, making the overall device lighter and increasing the rotation speed of the threshing drum. The second connecting ring 2 is located inside the first connecting ring 1, and the drum fixing plate 3 is located inside the second connecting ring 2, and they are located on the same concentricity.

[0024] Both roller fixing plates 3 are fixedly connected to connecting shafts 4 on their outer sides. The connecting shafts 4 can be connected to the drive mechanism on the harvester and drive the rotation of the equipment. The fixing component is a reinforcing rod 5. The roller fixing plates 3 are fixedly connected together by the reinforcing rods 5. The reinforcing rods 5 are evenly spaced and distributed to increase the stability of the entire equipment.

[0025] The first roller 6 has several equally spaced parts and is fixedly connected between two first connecting rings 1. Each first roller 6 is fixedly connected with several threshing plates 8 at equal intervals. Each threshing plate 8 has several threshing teeth 80. The threshing teeth 80 can remove most of the grains from the ears of grain. The upper part of the threshing teeth 80 or the included angle between two threshing teeth 80 is rounded to avoid damage to the surface of the grains or getting stuck between two threshing teeth 80.

[0026] Several second rollers 7 are evenly spaced and fixedly connected between two connecting rings 2. The first rollers 6 and the second rollers 7 are staggered. Several threshing rods 9 are evenly spaced and fixedly connected to each second roller 7. The threshing rods 9 are staggered from the threshing plate 8 so that the threshing rods 9 can remove the remaining kernels from the ears of grain. The threshing plate 8 and the threshing rods 9 are two different threshing components to ensure that the kernels on the ears of grain are removed more cleanly, avoiding secondary processing and increasing costs.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A threshing drum for a harvester, comprising a first connecting ring (1), a second connecting ring (2), a drum fixing plate (3), a connecting shaft (4), a reinforcing rod (5), a first roller (6), a second roller (7), a threshing plate (8), and a threshing rod (9), characterized in that: The first connecting ring (1) is provided with a second connecting ring (2) at intervals on its inner side, so that the first connecting ring (1) and the second connecting ring (2) are connected by a number of equally spaced fasteners. There are two of each of the first connecting ring (1) and the second connecting ring (2). The first connecting ring (1) and the second connecting ring (2) are a group and are provided with two groups at intervals. There are a number of equally spaced first rollers (6) between the two first connecting rings (1). A number of threshing plates (8) are fixedly connected to each first roller (6) at equal intervals. A number of equally spaced threshing teeth (80) are provided on each threshing plate (8). The threshing teeth (80) are rounded at the top or at the included angle between two threshing teeth (80). There are a number of equally spaced second rollers (7) between the two second connecting rings (2). The first rollers (6) and the second rollers (7) are staggered. A number of threshing rods (9) are fixedly connected to each second roller (7) at equal intervals. The threshing rods (9) are staggered from the threshing plates (8).

2. A threshing drum for a harvester according to claim 1, characterized in that: Each of the two second connecting rings (2) is provided with a roller fixing plate (3) at intervals.

3. A threshing drum for a harvester according to claim 1, characterized in that: The first connecting ring (1), the second connecting ring (2), and the roller fixing plate (3) all have the same concentricity.

4. A threshing drum for a harvester according to claim 1 or 2, characterized in that: Both of the roller fixing plates (3) are fixedly connected to the outer side of the connecting shaft (4).

5. A threshing drum for a harvester according to claim 1 or 2, characterized in that: The fixing component is a reinforcing rod (5), and the first connecting ring (1) and the second connecting ring (2) are fixedly connected to the roller fixing plate (3) by the reinforcing rod (5).

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