CN202232206U - Grubbing mechanism for crop straw/stubble returning machine - Google Patents

Abstract

The utility model discloses a root-removing mechanism for crop straw/root stubble returning machinery, which relates to the technical field of agricultural machinery and includes a bracket (1), a side plate (2) and a knife roller assembly; The roller assembly (3) and the lower cutter roller assembly (4); the side plates are arranged symmetrically on the lower part of both sides of the bracket, and the upper cutter roller assembly and the lower cutter roller assembly are arranged between the side plates in a stepped layout It is characterized in that: the cutter roller (9) of the cutter roller assembly is provided with multiple sets of stubble removal knife combinations at equal intervals in the axial direction; the stubble removal cutter combination includes a stubble removal cutter and a cutter head, and the stubble removal cutter is a cutter head type The structure has a curved cutting edge, which is divided into left-curved stubble removal knives (11) and right-curved stubble removal knives (10) according to the bending direction of the cutting edge; the left-curved stubble removal knives and right-curved stubble removal knives are arranged at equal angular intervals in the circumferential direction of the cutter head; The cutter head is fixedly connected to the cutter roller; this mechanism can process the stubble of crops at one time, realize the return of stubble of crops to the field, and improve operation efficiency and soil fertility.

Description

Root-removing mechanism for a crop straw/root stubble returning machine

technical field

The utility model relates to the technical field of agricultural machinery, in particular to a root removal mechanism of a crop straw/root stubble returning machine. the

Background technique

At present, the biggest problem in the harvesting and replanting of most crops such as cotton, corn, and bananas is the treatment of stalks/root stubbles: at present, the most important methods are manual felling one by one, whole stalks, and centralized stacking. The stalks rot naturally; the roots are treated with primitive excavation methods. The disadvantage of this method is that it occupies a large area of land, wastes labor, and wastes a lot of organic fertilizer, because crop straw is rich in a large amount of organic matter nitrogen, phosphorus, potassium and trace elements, and is one of the important organic fertilizer raw materials in agricultural production. one. If the stalks can be plowed into the soil in time, it can not only greatly reduce the labor intensity of farmers, but also help to renew and increase soil organic matter, improve soil aggregate structure and physical and chemical properties such as water retention, bonding, ventilation, and heat preservation, and improve soil fertility. , is conducive to the rooting and growth of plants, realizes conservation tillage, and promotes the high yield and increase of crops. Therefore, it is of great significance to promote the sustainable development of agriculture to carry out research on the technology of returning stalks and stubbles of crops such as cotton, corn and bananas. the

For example, a method and device for returning banana pseudostems to the field proposed in Chinese patent application 200610123267.5, firstly, the tractor head pushes down the banana pseudostems in situ while walking, and a row of Y-shaped movable knives that perform high-speed tangential motion with the ground remove the bananas. The pseudostem is lifted from the ground and sent into the crushing chamber. The high-speed Y-shaped moving knife and the fixed knife in the crushing chamber are used to cooperate with the staggered cutting to crush the banana pseudostem, and then spread the slag evenly on the ground through the rear backflow plate. On the field, after being dried in the sun, it is plowed and buried under the soil, and returned to the field as green manure. But the root stubble problem was not solved. the

Contents of the invention

The purpose of the invention is to propose a root removal mechanism for crop straw/stubble returning machinery, which can process the stubble of crops at one time, realize the returning of cotton, corn and bananas and other crops, and improve the operation efficiency and soil fertility. the

In order to realize the above invention object, the present invention adopts the following technical solutions:

A root-removing mechanism for a crop straw/root stubble returning machine, including a bracket, a side plate and a knife roller assembly; the knife roller assembly consists of an upper knife roller assembly and a lower knife roller assembly; the side plates are symmetrically arranged on In the lower part of both sides of the support, the upper cutter roller assembly and the lower cutter roller assembly are arranged between the side plates in a stepped layout; the cutter rollers of the cutter roller assembly are arranged with multiple groups of stubble removal cutters arranged at equal intervals in the axial direction; The stubble removal knife combination includes a stubble removal knife and a cutter head. The stubble removal knife is a cutter head structure with a curved edge. According to the bending direction of the cutting edge, it is divided into a left-curved stubble removal knife and a right-curved stubble removal knife; The right-curved stubble cutting knives are arranged at equal angular intervals on the circumference of the cutter head; the cutter head is fixedly connected to the cutter roller.

For better implementation of the present invention, the cutterheads arranged at both ends of the cutter roller are called left cutterhead and right cutterhead, and the cutterhead arranged in the middle of the cutter roller is called middle cutterhead; the left cutterhead, right cutterhead Right-curved stubble removal knives and left-curved stubble removal knives are respectively installed at intervals of 120o on the upper side; left-curved stubble removal knives and right-curved stubble removal knives are installed alternately at intervals of 60o on the middle cutter head. the

In order to better implement the present invention, viewed from the axial direction of the cutter roller, the left-curved stubble removal knives and right-curved stubble removal knives are arranged in a double helix structure according to the helical line, and the adjacent helix angle is 72°. the

In order to better implement the invention, the center distance between the upper cutter roller assembly and the lower cutter roller assembly is 500-600 mm. the

In order to better implement the invention, the vertical distance between the upper cutter roller assembly and the lower cutter roller assembly is 150-260 mm. the

In order to better implement the present invention, the rotary diameters of the upper cutter roller assembly and the lower cutter roller assembly cutter rollers are both 450-580mm. the

Owing to adopting above-mentioned technical scheme, the beneficial effect that the present invention has is:

1. The arrangement of the left-curved stubble cutter and the right-curved stubble cutter on the cutter roller ensures that a left and a right machete go into the soil alternately during each root removal operation, so that the torque on the stubble cutter is relatively balanced, and the return of the machete is reduced. The torque at the center of gravity of the field machine maintains the straightness of the machine when it is working; at the same time, it reduces the side pressure of the cutter roller bearing and reduces the torque fluctuation range, which can minimize the unbalance of the machine and achieve the best vibration reduction effect, and will not cause blockage and missing tillage , Re-cultivation phenomenon, the ground surface is flat after plowing.

2. The cutter head structure of the stubble cutter is designed in a curved shape. When cutting the stubble, the blade first cuts into the soil from the edge closer to the cutter roller, and then gradually moves from far to near. Turning to the end farther away from the cutter roller, this root removal process can press the stalk fragments and residues to the uncultivated land for support and chopping. Even if they are not chopped, the sliding cutting effect of the blade can also be used. Make it slide to the end and leave the machete to prevent it from being entangled on the cutter and the cutter roller, which will affect the normal operation of the stalk/root stubble returning machine. the

3. Carry out root stubble removal by implementing the root removal mechanism created by the present invention. On the one hand, it is beneficial to the activity of microorganisms. The crushed root stubbles are fermented to increase soil fertility, solve the problem of occupying land and reduce pollution; on the other hand, the root stubble removal At the same time, the land can be cultivated, the production efficiency can be improved, the production cost can be reduced, and the fallow period can be shortened, which is convenient for planting. the

Description of drawings

Fig. 1 is a layout drawing one of the root removal mechanism of the present utility model;

Fig. 2 is the layout drawing two of the root removal mechanism of the present invention;

Fig. 3 is a schematic structural view of the utility model cutter roller assembly;

Fig. 4 is the structural representation of the stubble cutter provided on the utility model cutter roller;

In the figure: 1—support; 2—side plate; 3—upper cutter roller assembly; 4—lower cutter roller assembly; 5—chain drive; 6—left cutterhead; 7—middle cutterhead; 8—right cutterhead 9—knife roll; 10—right-curved stubble cutter; 11—left-curved stubble cutter.

Detailed ways

With reference to Fig. 1 and Fig. 2, the root-removing mechanism of the crop straw/root stubble returning machine implemented in this embodiment, the upper knife roller assembly 3 and the lower knife roller assembly 4 are arranged in a stepped layout on the side plates 2 at the bottom of both sides of the support 1 Between; The upper cutter roller assembly 3 and the lower cutter roller assembly 4 are the same structure, the center distance between the two cutter rollers is 500-600mm, and the vertical spacing is 150-260mm. The upper knife roller assembly and the lower knife roller are driven by chain drive 5. the

In conjunction with Fig. 3 and Fig. 4, the cutter roller 9 of the cutter roller assembly is axially equidistantly arranged with multiple groups of stubble removal knife combinations; The stubble removal knife is a cutter head structure, and the cutting edge is curved. According to the bending direction of the cutting edge, it is divided into a left-curved stubble removal knife 11 and a right-curved stubble removal knife 10; interval setting. the

In conjunction with Fig. 3, the cutterheads arranged at both ends of the cutter roller are called left cutterhead 6 and right cutterhead 8, and the cutterhead arranged in the middle of the cutter roller is called middle cutterhead 7; the left cutterhead 6 and right cutterhead 8 are respectively Right-curved stubble removal knives 10 and left-curved stubble removal knives 11 are installed at intervals of 120o; left-curved stubble removal knives 11 and right-curved stubble removal knives 10 are installed alternately on the middle cutterhead 7 at an interval of 60o; And the right-curved stubble removal knife 10 is arranged into a double helix structure according to the helix, and the adjacent helix angle is 72o. Thereby the rotary diameter of the cutter roller that forms each cutter roller assembly is 450-580mm. the

The knife roller is set as a homogeneous rotary part, and its centrifugal force is approximately zero; the stubble cutting knife is made of 65Mn or 60Si2Mn material, which is formed by forging and pressing. The hardness of the knife body is HRC48-54, and the hardness of the knife handle is HRC38-45. the

When dealing with stubble in the underground part: the power is transmitted to the two-stage knife rollers of the root removal mechanism, so that the stubble knives on the two-stage knife rollers alternately generate low-speed and high-torque movements perpendicular to the ground, and the root stubble is planed and cut off. , Chopped, and rotary tilled together with the broken stems and turned into the soil. the

The root removal mechanism truly realizes the compound operations of crushing, stubble removal, rotary tillage and covering of the rhizome of the plant. the

The invention can be widely used in the treatment of root stubble returning to the field of relevant crops such as bananas, cotton, and corn. the

Claims (6)

1. the mechanism of digging up the roots of agricultural crop straw/stubble in field machinery comprises support (1), side plate (2) and rotor assembly; The total composition upper slitter of said rotor roller assembly (3) and following rotor assembly (4); Said side plate (2) is symmetricly set on support (1) two side lower part, and said upper slitter roller assembly (3) and following rotor assembly (4) are the staged layout and are arranged between the side plate (2); It is characterized in that: the rotor of said rotor assembly (9) axially equal intervals is provided with the combination of many group stubble-cleaning cuttves; Said stubble-cleaning cutter combination comprises stubble-cleaning cutter and cutterhead, and said stubble-cleaning cutter is the cutter head type structure, and the curved shape of cutting edge is divided into curved stubble-cleaning cutter (11) in a left side and right curved stubble-cleaning cutter (10) according to the cutting edge bending direction; Curved stubble-cleaning cutter (11) in a left side and right curved stubble-cleaning cutter (10) are in the circumferential first-class angle intervals setting of cutterhead; Said cutterhead connects firmly on rotor.

2. the mechanism of digging up the roots of agricultural crop straw according to claim 1/stubble in field machinery, it is characterized in that: the cutterhead that is arranged on the rotor two ends is called left cutterhead (6), right cutterhead (8), and the cutterhead that is arranged on the rotor middle part is called middle cutterhead (7); Said left cutterhead (6), right cutterhead (8) are gone up corresponding at interval right curved stubble-cleaning cutter (10), the curved stubble-cleaning cutter (11) in a left side installed of 120o respectively; Interval 60o alternately installs the curved stubble-cleaning cutter (10) of the curved stubble-cleaning cutter (11) in a left side and the right side on the middle cutterhead.

3. the mechanism of digging up the roots of agricultural crop straw according to claim 1 and 2/stubble in field machinery; It is characterized in that: axially see from rotor (9); The curved stubble-cleaning cutter (11) in a said left side is arranged by spiral into double-spiral structure with right curved stubble-cleaning cutter (10), and adjacent helical angle is 72o.

4. the mechanism of digging up the roots of agricultural crop straw according to claim 1/stubble in field machinery is characterized in that: said upper slitter roller assembly (3) and following rotor assembly (4) rotor centre-to-centre spacing 500-600mm.

5. the mechanism of digging up the roots of agricultural crop straw according to claim 1/stubble in field machinery is characterized in that: said upper slitter roller assembly (3) and following rotor assembly (4) rotor vertical interval 150-260mm.

6. the mechanism of digging up the roots of agricultural crop straw according to claim 1/stubble in field machinery, it is characterized in that: it is characterized in that: the tactical diameter of said upper slitter roller assembly (3) and following rotor assembly (4) rotor is 450-580mm.

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