CN205902418U - Millet threshing machine - Google Patents

Abstract

The utility model discloses a millet threshing machine, the core mechanism of which adopts a "rubbing-beating-rubbing" three-stage composite threshing structure, and the main structure includes: a threaded rod roller (1), a plate tooth roller (5), a shaft (4) and the upper and lower shells; the grooved rod roller (1) and the plate tooth roller (5) are connected through the shaft (4); The bolts (7) are connected; the plate teeth (6) are adjacent to each other and arranged in a staggered manner, and are also distributed in a hexagonal shape on the drum. The shell is divided into an upper shell (10) and a lower shell (3), and the lower shell (3) consists of Composed of a net structure, the two sides of the upper shell (10) are respectively provided with a material inlet (8) and a material outlet (9) near the end surface, and the upper and lower shells are also connected by bolts (7). The thresher completes three treatments of rubbing, beating, and post-rubbing on the ears of grain, which can reduce the physical damage to the grains and ensure the quality of the millet while ensuring a high cleaning rate.

Description

millet thresher

technical field

The utility model belongs to the field of crop threshing machinery, in particular to a threshing mechanism for a millet thresher.

Background technique

Millet is one of the main crops in the hilly and mountainous areas of northern my country. There is no relevant model for the mechanized harvesting of millet in the existing combine harvesters that are specially adapted to the terrain conditions in northern Shaanxi. Directly used to harvest millet has large losses and impurities. In millet production, there are only a small number of reformed threshers available, and the production efficiency is low. Therefore, it is urgent to study a millet combine harvester suitable for the terrain conditions in northern Shaanxi. Aiming at the problems of severe ear drop, difficult threshing, large cleaning loss, high impurity content and loss rate of the current millet combine harvester, it is planned to develop a new type of high-efficiency millet combine harvester by overcoming relevant key technologies and creating relevant key components .

Utility model content

The purpose of the utility model is to solve the problems of severe ear drop, difficult threshing, high impurity content and loss rate of the existing millet combine harvester, and develop a new type of high-efficiency millet combine harvester.

In order to achieve the above object, the technical solution of the utility model is:

The core threshing mechanism of this millet thresher adopts the three-stage composite threshing technology of "kneading-strike-kneading", reasonably arranges the position of the grain rod and the plate teeth on the threshing drum, and adopts a gradual threshing gap to adjust the corn ears. Kneading, beating, and post-kneading are completed three times successively. On the premise of ensuring a high cleaning rate, the physical damage to the grains is reduced to ensure the quality of the millet.

The three-stage composite threshing structure of the millet detaching machine, the sequence of arrangement of the grain rods and plate teeth is (from the feed port to the discharge port): grain bar drum-plate tooth drum-grain bar drum, using Coaxial and same speed transmission.

In the threshing mechanism of the described millet detaching machine, the arrangement of the grain bars is staggered adjacent to each other at 45° and 135°, and the grain bars are distributed in a hexagonal shape on the drum and connected with the hexagonal top end cover by bolts; The teeth of the teeth are adjacent to each other and arranged in a hexagonal shape, which can effectively beat the ears of grain and avoid missing a part of the ears of grain without threshing.

The shell of the threshing part of the millet detaching machine is divided into an upper shell and a lower shell. The lower shell is composed of a mesh structure, which is conducive to separating the threshed millet from the threshing barrel in time. The two sides of the upper shell are close to the end surface. There are feed inlet and outlet respectively, and there are two guiding belts inside. On the one hand, the threshed millet stalks are led out from the outlet in time; on the other hand, the ear is guided from the inlet Outlet.

Description of drawings

Fig. 1 is the structural diagram of a kind of grain thresher threshing mechanism of utility model;

Fig. 2 is a semi-assembly drawing of a millet thresher of the utility model;

Figure 3 is a three-view view of the overall assembly of a millet thresher of the utility model;

In the figure: 1. Striped rod roller, 2. Top cover, 3. Lower shell screen, 4. Shaft, 5. Plate teeth roller, 6. Plate teeth, 7. Bolts, 8. Feed inlet, 9. Discharge Mouth, 10. Upper shell.

detailed description

Below in conjunction with accompanying drawing, the technical solution of the utility model is further elaborated.

This practical millet thresher adopts the three-stage compound threshing technology of "kneading-strike-kneading". The ear of grain is fed from the feeding port (8), and the ear of grain is rubbed for the first time by the grain rod roller (1). threshing, and then sent to the toothed roller (5) to beat and thresh the ears of grain, and finally pass through the second section of grain rod roller (1), rub and thresh the ears of grain again, and finally remove the grain straw from the discharge port ( 9) exporting, the grain grains are screened out through the lower shell screen (3) and sent to the cleaning device for final cleaning; the threshing work of the grain is completed.

The structure and working principle of the present invention are described above with specific embodiments. The present invention is not limited to the above embodiments. According to the above description, any modifications, equivalent replacements and improvements made on the spirit and principles of the present invention, etc. , should be included within the protection scope of the present invention.

Claims (1)

1. A millet threshing machine, characterized in that: it adopts the three-stage compound threshing technology of "rubbing-strike-rubbing", reasonably arranges the positions of grain bars and plate teeth on the threshing cylinder, and the threshing cylinder is installed in the shell, and adopts Gradual threshing gap, the grain ears are rubbed, beaten, and finally rubbed three times in the shell, reducing the physical damage to the grains and ensuring the quality of the millet under the premise of ensuring a high cleaning rate; The sequence of arrangement of the grain rods and plate teeth from the feed port to the discharge port is: grain rod roller-plate tooth roller-grain rod roller, which is driven by coaxial and same speed; the grain rod roller rubs the ear of grain For threshing, the plate-toothed roller beats and threshes the ears of grain; the composite threshing technology combined with the two can ensure a high cleaning rate; The arrangement of the teeth on the corrugated rods described is staggered adjacently at 45° and 135°. The corrugated rods are distributed in a hexagonal shape on the drum, and the corrugated rods are connected to the hexagonal top end cover by bolts; the teeth on the plate teeth They are adjacent to each other and arranged in a staggered manner, and are also distributed in a hexagonal shape; The shell is divided into an upper shell and a lower shell. The lower shell is composed of a mesh structure. The two sides of the upper shell are respectively provided with a material inlet and a material outlet near the end surface. There are two material guide belts inside, and the upper and lower shells also pass through Bolted connection The lower shell is composed of a mesh structure, which is beneficial for the threshed millet to be removed from the threshing barrel in a timely manner, and there are two guide belts inside the upper shell, whose function is to timely remove the threshed millet straw from the threshing barrel. export.