CN214708875U

CN214708875U - Buckwheat results threshing cylinder

Info

Publication number: CN214708875U
Application number: CN202120682676.9U
Authority: CN
Inventors: 张卫国; 郑中晓; 王淳; 李亚男; 向劲华; 黄颖石; 刘雪雪
Original assignee: Northwest A&F University
Current assignee: Northwest A&F University
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-11-16
Anticipated expiration: 2031-04-02

Abstract

The utility model relates to a buckwheat results threshing cylinder, the primary structure includes: the rotary straw discharging device comprises a central shaft, an end seat bearing, a helical blade, a cylindrical shell, rotary straw discharging teeth, a flat key and a welding angle; the helical blades are welded on the surface of the cylindrical shell along the helical direction, a central shaft penetrates through the center of the cylindrical shell, and the centers of two end faces of the cylindrical shell are welded with the central shaft and are reinforced through welding angles; the end seat bearings are penetrated by the central shaft and are arranged at the two ends of the cylindrical shell; the rotary grass discharging teeth are connected with the right end of the central shaft through a key. The utility model discloses simple structure, easily processing through helical blade leading buckwheat stem stalk direction of motion, can prolong the activity duration of buckwheat crop in thresher, reduces the strike to seed grain and stem stalk, and the breakage rate and the miscellaneous rate of inclusion of greatly reduced seed grain alleviate the pressure of cleaning the link when promoting results seed grain quality, have fine application and spreading value.

Description

Buckwheat results threshing cylinder

Technical Field

The utility model relates to a buckwheat harvester technical field, concretely relates to be used for buckwheat results threshing cylinder.

Background

Buckwheat is an important small coarse cereal crop in China, has extremely high edible and health-care values, and is identified as excellent grain and medicinal grain seeds. And the plant is also suitable for growing in hilly and mountainous areas, dry lands, gentle slopes and other land types due to the growth characteristics of cold resistance, drought resistance, barren resistance, strong stress resistance and short growth period, and is called pioneer crops. At present, the design of a threshing cylinder used in a buckwheat harvester mostly follows the design form of the threshing cylinder in self-propelled combine harvesters such as wheat and rice, and mainly comprises a spike-tooth type threshing cylinder and a rasp-bar type threshing cylinder. The two drums are designed according to the material characteristics and the mechanical characteristics of rice and wheat, so that grains are easily damaged in the threshing process, the transportation and the storage of the buckwheat are not facilitated, and the healthy development of the buckwheat industry is seriously hindered.

Disclosure of Invention

In view of the above problem, the utility model provides a threshing cylinder for buckwheat results, this utility model adopts helical structure to thresh, strikes the rigidity of buckwheat seed grain and stem stalk through reducing the in-process of threshing, has reduced the breakage rate of seed grain and the percentage of damage of stem stalk to reduce cleaning plant's pressure, improved buckwheat plant owner's economic benefits.

In order to achieve the above purpose, the technical scheme of the utility model is that:

a threshing cylinder for a buckwheat harvesting machine mainly comprises: the rotary straw discharging device comprises a central shaft, an end seat bearing, a helical blade, a cylindrical shell, rotary straw discharging teeth, a flat key and a welding angle; the helical blades are welded on the surface of the cylindrical shell along the helical direction, a central shaft penetrates through the center of the cylindrical shell, and the centers of two end faces of the cylindrical shell are welded with the central shaft and are reinforced through welding angles; the end seat bearings are penetrated by the central shaft and are arranged at the two ends of the cylindrical shell; the rotary grass discharging teeth are connected with the right end of the central shaft through a key.

The threshing cylinder controls the flow direction of the buckwheat crops by taking the lead angle of the helical blades as the guide, thereby effectively prolonging the threshing time of the buckwheat crops in the threshing device and improving the threshing and separating efficiency; and because the contact surface of the helical blade and the buckwheat crop is smooth and the stress concentration points are few, the crushing rate of buckwheat grains and the crushing degree of stalks can be effectively reduced, the impurity content after threshing is reduced, and the cleaning pressure is reduced. The utility model can adapt to the buckwheat harvesting operation in different areas and different biological characteristics by changing the shape of the helical blade.

The beneficial effects of the utility model

The utility model controls the movement direction of buckwheat crops through the lift angle of the helical blades, prolongs the threshing time of the crops in the threshing device, and effectively improves the threshing separation efficiency;

the utility model relates to a threshing original element greatly reduces the rigidity beating and rubbing intensity to the buckwheat, thereby reducing the seed crushing rate and impurity rate in the buckwheat threshing process and lightening the cleaning pressure;

the utility model discloses simple structure, easily processing can effectively improve the buckwheat effect of threshing to improve combine's work efficiency.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the example serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of a roller frame according to the present invention;

FIG. 2 is a sectional view A-A of FIG. 1;

FIG. 3 is a cross-sectional view B-B of FIG. 1;

in the figure: 1. a central shaft; 2. an end mount bearing; 3. a helical blade; 4. a cylindrical housing; 5. rotating the grass discharge teeth; 6. a flat bond; 7. and (6) welding corners.

Detailed Description

The embodiments of the present invention will be described more fully hereinafter with reference to the accompanying drawings, in which some details are set forth to provide a thorough understanding of the present invention.

A threshing cylinder for a buckwheat harvesting machine mainly comprises: the device comprises a central shaft 1, an end seat bearing 2, a helical blade 3, a cylindrical shell 4, a rotary grass discharging tooth 5, a flat key 6 and a welding angle 7;

the helical blade 3 is welded on the surface of the cylindrical shell 4 along the helical direction, and the helical direction is horizontally towards the right; a central shaft 1 penetrates through the center of the cylindrical shell 4, the centers of two end faces of the cylindrical shell 4 are welded with the central shaft 1 and are reinforced by welding corners 7, and the welding corners 7 are triangular; the end seat bearing 2 is penetrated by the central shaft 1 and is arranged at the two ends of the cylindrical shell 4; the rotary grass discharging teeth 5 are connected with the right end of the central shaft 1 through a flat key 6.

The utility model discloses a through changing the threshing cylinder of traditional pole tooth and rasp pole, at the cylinder in hollow cylinder surface welding helical blade as buckwheat results thresher, both can prolong the threshing time of buckwheat crop in thresher, effectively improve threshing separation efficiency, can also reduce the rigidity strike and rub intensity to the crop, make the buckwheat seed grain breakage rate and the miscellaneous rate reduction of the in-process of threshing, alleviate the pressure of cleaning.

The working process of the threshing cylinder operation is as follows: buckwheat crops are fed into the threshing device, the cylindrical shell 4 rotates along with the rotation of the central shaft 1, so that the crops are driven to rotate, the crops gradually make spiral motion rightwards under the action of the spiral blades 3, buckwheat grains are separated from and fall off under the action of striking, vibration and the like in the process, stalks continue to move rightwards, and the threshed buckwheat stalks are discharged by the rotary grass discharge teeth 5.

The above list is only a few specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, the helical blade can also be deformed to some extent, and adapt to the buckwheat characteristics in different regions, and all the deformation that can be directly derived or suggested by the person skilled in the art from the disclosure of the present invention should be considered as the protection scope of the present invention.

Claims

1. A buckwheat harvesting threshing cylinder mainly comprises: the rotary straw discharging device comprises a central shaft, an end seat bearing, a helical blade, a cylindrical shell, rotary straw discharging teeth, a flat key and a welding angle;

the method is characterized in that:

the helical blades are welded on the surface of the cylindrical shell along the helical direction, a central shaft penetrates through the center of the cylindrical shell, and the centers of two end faces of the cylindrical shell are welded with the central shaft and are reinforced through welding angles; the end seat bearings are penetrated by the central shaft and are arranged at the two ends of the cylindrical shell; the rotary grass discharging teeth are connected with the right end of the central shaft through a key.