Bionic spike tooth based on earthworm external form and threshing cylinder

Abstract

The utility model discloses bionic spike teeth based on the external form of an earthworm and a threshing cylinder. The bionic spike teeth comprise toothed plates, blades, arch teeth, toothed bars, key sleeves, bionic spike teeth, a threshing cylinder shaft, grass discharging teeth and amplitude discs. The bionic spike teeth are fixedly arranged above the toothed bar, the toothed bar is fixedly connected to the outer edge of the amplitude disc, and the amplitude disc is fixedly arranged on the threshing cylinder shaft. The bionic spike teeth based on the external form of the earthworm are designed, the bionic spike teeth, the arch teeth and the grass discharging teeth are arranged, the collision area on grains is increased, and then the threshing rate is increased; toothed plates are additionally arranged on the blades, so that the feeding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of agricultural threshing machinery, especially relates to a bionic tine based on external form of earthworm and threshing cylinder. BACKGROUND

[0002] The threshing device plays a vital role in the process of harvesting crops. The main function of the threshing device is to separate the grains of crops from the heads or fruits and ensure that the grains are not damaged and can be collected smoothly. In the existing threshing process of the grain combine harvester, the threshing tines are all fixed on the tooth bars on the threshing cylinder.

[0003] During the threshing operation, the threshing cylinder drives the threshing tines to rotate through the tooth bars, the threshing tines hit the grain heads, the grains are threshed through impact and rubbing, and the threshing, separation and screening operations are completed by passing through the straw layer. Due to the large mechanical force during threshing, the crops are easily impacted during the threshing process, and there is a certain risk of grain damage. In years of operation and practice, it is found that the grains threshed by hitting the heads with ordinary fixed threshing tines are subjected to a large separation force, resulting in a high grain breakage rate. So far, the threshing grain breakage rate of the threshing cylinder has been high, the grain adaptability is poor, and an ideal solution has not been found. SUMMARY

[0004] The utility model overcomes at least one defect (deficiency) of the prior art, combines the actual needs of current threshing operation, and designs a bionic tine based on the external form of earthworm and a threshing cylinder, to reduce the grain breakage rate during threshing operation and improve the grain adaptability.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of a bionic tine based on the external form of earthworm and a threshing cylinder, which comprises a tooth plate, a blade, a bow tooth, a tooth bar, a key sleeve, a bionic tine, a threshing cylinder shaft, a straw tooth, and a width disc.

[0006] As a preferred, the external contour of the bionic tine is designed by imitating the external contour arc of earthworm.

[0007] As a preferred, the width disc is fixedly supported on the inner side of the tooth bar, and the bionic tine, the bow tooth, and the straw tooth are arranged on the tooth bar. The bionic tine, the bow tooth, and the straw tooth are perpendicular to the tooth bar and the threshing cylinder shaft.

[0008] As a preferred, the bionic tine, the bow tooth, and the straw tooth arranged on the tooth bar are arranged in a mixed manner, and the straw tooth is arranged at the last side of the tooth bar.

[0009] As preferred, the tooth bars are uniformly distributed on the outer edge of the width plate, and the tooth bars are parallel to the threshing cylinder shaft.

[0010] As preferred, the tooth plate is arranged on the front side of the blade, and the blade is uniformly connected to the threshing cylinder shaft.

[0011] The beneficial effects of the utility model lie in: design a bionic tine based on the external form of earthworm and a threshing cylinder, compared with common cylindrical tine, the bionic tine is designed with more annular protrusions, can increase the contact area and contact force direction in the threshing process, has the characteristics of novel, unique, reasonable, simple structure, reduces the seed damage rate in threshing operation and improves the adaptability of grains. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic view of the utility model;

[0013] Figure 2 It is a schematic view of the bionic tine of the utility model;

[0014] Part number explanation in the drawing: 1-tooth plate; 2-blade; 3-harbor tooth; 4-tooth bar; 5-key sleeve; 6-bionic tine; 7-threshing cylinder shaft; 8-straw tooth; 9-width plate. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0016] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0017] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more.

[0018] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0019] Embodiment:

[0020] As shown in Figure 1 , a bionic spike tooth based on the external morphology of earthworm and a threshing cylinder, comprising a tooth plate 1, a blade 2, a bow tooth 3, a tooth rod 4, a key sleeve 5, a bionic spike tooth 6, a threshing cylinder shaft 7, a straw tooth 8, and a width disc 96; the bionic spike tooth is fixedly arranged above the tooth rod 4, the tooth rod 4 is fixedly connected to the outer edge of the width disc 9, and the width disc 9 is fixedly arranged on the threshing cylinder shaft 7.

[0021] Further, as shown in Figure 2 , the external contour of the bionic spike tooth 6 is designed by imitating the external contour arc of the earthworm.

[0022] Further, the width disc 9 is fixedly supported on the inner side of the tooth rod 4, and the tooth rod 4 is provided with the bionic spike tooth 6, the bow tooth 3 and the straw tooth 8. The bionic spike tooth 6, the bow tooth 3 and the straw tooth 8 are perpendicular to the tooth rod 4 and the threshing cylinder shaft 7 at the same time.

[0023] Further, the bionic spike tooth 6, the bow tooth 3 and the straw tooth 8 arranged on the tooth rod 4 are arranged in a mixed manner, and the straw tooth 8 is arranged at the last side of the tooth rod 4.

[0024] Further, the tooth rod 4 is uniformly distributed on the outer edge of the width disc 9, and the tooth rod 4 is parallel to the threshing cylinder shaft 7.

[0025] Further, the tooth plate 1 is arranged on the front side of the blade 2, and the blade 2 is uniformly connected to the threshing cylinder shaft 7.

[0026] The working principle of the present scheme is as follows:

[0027] The grain flow conveyed by the bridge enters the inside of the threshing cylinder under the driving of the blade 2 and the tooth plate 1; the bionic spike tooth 6 and the bow tooth 3 strike and thresh, and the contact area of the bionic spike tooth 6 is large, which can improve the threshing effect; the sundries are discharged at the tail of the threshing cylinder through the straw tooth 8.

[0028] The bionic spike and the threshing cylinder based on the external form of earthworm are made according to the external form of earthworm through curve fitting, and the threshing cylinder designed according to the bionic spike effectively reduces the damage of grains and improves the adaptability of the threshing cylinder.

[0029] The above-described embodiments only express the specific implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A biomimetic nail tooth and threshing roller based on the external morphology of an earthworm, characterized in that, It includes a toothed plate (1), blades (2), bow teeth (3), toothed bar (4), key sleeve (5), bionic nail teeth (6), threshing drum shaft (7), straw-removing teeth (8), and a flange (9); the bionic nail teeth (6) are fixedly arranged above the toothed bar (4), the toothed bar (4) is fixedly connected to the outer edge of the flange (9), and the flange (9) is fixedly set on the threshing drum shaft (7).

2. The biomimetic nail teeth and threshing roller based on the external morphology of an earthworm as described in claim 1, characterized in that, The outer contour of the biomimetic nail tooth (6) is designed to mimic the curvature of the outer contour of an earthworm.

3. The biomimetic nail teeth and threshing roller based on the external morphology of an earthworm as described in claim 1, characterized in that, The disc (9) is fixedly supported on the inner side of the toothed rod (4). The toothed rod (4) is provided with bionic nail teeth (6), bow teeth (3) and grass-removing teeth (8). The bionic nail teeth (6), bow teeth (3) and grass-removing teeth (8) are perpendicular to the toothed rod (4) and the threshing drum shaft (7).

4. The biomimetic nail teeth and threshing roller based on the external morphology of an earthworm as described in claim 2, characterized in that, The arrangement of the bionic nail teeth (6), bow teeth (3) and grass-dispersing teeth (8) on the toothed rod (4) is such that the bionic nail teeth (6) and bow teeth (3) are arranged in a mixed manner, and the grass-dispersing teeth (8) are located at the rear of the toothed rod (4).

5. The biomimetic nail teeth and threshing roller based on the external morphology of an earthworm according to claim 1, characterized in that, The toothed rods (4) are evenly distributed on the outer edge of the disc (9), and the toothed rods (4) are parallel to the threshing drum shaft (7).

6. The biomimetic nail teeth and threshing drum based on the external morphology of an earthworm according to claim 1, characterized in that, The toothed plate (1) is disposed on the front side of the blade (2), and the blade (2) is uniformly connected to the threshing drum shaft (7).

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