Corn straw returning device

Abstract

The utility model discloses a corn straw returning device, and relates to the technical field of agricultural machinery, the corn straw returning device is characterized in that an opening is formed in the side wall of a shell, a pulling unit comprises a material pulling shaft, the pulling unit is installed on the side, close to the opening, in the shell and used for pulling out straw from soil and moving the straw to a cutting unit, and the cutting unit is used for cutting the straw. Every two material pulling shafts form a set, and the material pulling shafts partially penetrate through the openings to be located on the outer side of the shell. The cutting unit is installed in the shell, located above the pulling unit and used for cutting off the straw and moving the cut-off straw to the smashing unit; the smashing unit is installed on the side, away from the opening, in the shell and used for completely smashing straw and burying the straw under soil. The guide units are installed at the ends, located outside the shell, of the material pulling shafts and used for guiding straw to enter each set of material pulling shafts. The defect that the subsequent workload and labor cost are increased due to the fact that the work achievement rate of an existing corn straw returning machine cannot achieve 100% is overcome.

Description

TECHNICAL FIELD

[0001] The utility model belongs to agricultural implement technical field, especially relate to a corn stalk returning to field device. BACKGROUND

[0002] Straw returning to field is through equipment and is not suitable for crop stalks from the field, and then picks up the rootstock, and the straw and rootstock are crushed, and finally according to the different crops, the crushed straw is thrown to the field surface or buried in the soil, so that it is rotten and decomposed as base fertilizer.For crops such as corn and cotton with deep root system, the crushed straw of straw and rootstock is generally buried underground to improve soil organic matter and improve the growth conditions of crops.

[0003] The existing corn stalk returning to field machine generally realizes the cutting and picking up of corn stalks through multiple side-by-side mechanisms, but there are gaps between the side-by-side mechanisms, and the spacing of corn planting is not completely consistent, and the driver may also have a little deviation when driving the corn stalk returning to field machine, and multiple errors accumulate, which may cause the corn stalks to not accurately enter the mechanism, causing the corn stalk returning to field machine to not complete 100% returning to field in a single time, so that subsequent manual inspection and processing are required, increasing the subsequent workload and labor cost.

[0004] Therefore, a corn stalk returning to field device is needed. UTILITY MODEL CONTENT

[0005] The existing corn stalk returning to field machine has gaps between the side-by-side cutting and picking up of rootstock mechanisms, and the corn stalks may enter the gaps, causing the corn stalks to not be cut and picked up, resulting in the existing corn stalk returning to field machine not achieving 100% work completion rate, thereby increasing the subsequent workload and labor cost.The utility model aims to provide a corn stalk returning to field device to solve the above problems, and the specific technical scheme is as follows:

[0006] A corn stalk returning to field device, comprising a shell, a pulling unit, a cutting unit and a crushing unit, an opening is arranged on the side wall of the shell, the pulling unit comprises a pulling shaft, the pulling unit is installed on one side of the shell close to the opening, for pulling the straw out of the soil and moving to the cutting unit, two pulling shafts are a group, and the pulling shafts partially pass through the opening and are located outside the shell;

[0007] The cutting unit is installed in the shell and located above the pulling unit, for cutting the straw and moving the cut straw to the crushing unit; the crushing unit is installed in the shell away from the opening, for completely crushing the straw and burying it under the soil;

[0008] Further comprising: a guide unit, which is installed on the end of the pulling shaft outside the shell, for guiding the straw into each group of pulling shafts.

[0009] Preferably, the guide unit comprises a first adapter block, a second adapter block, a first guide rod, a second guide rod and a support rod, the first adapter block and the second adapter block are rotatably installed on the end of each group of pulling shafts outside the shell, one end of the first guide rod is connected with the first adapter block, one end of the second guide rod is connected with the second adapter block, the other end of the first guide rod is connected with the end of the second guide rod of the adjacent group of pulling shafts away from the second adapter block, one end of the two support rods is connected with the edge of the opening, and the other end of the first guide rod and the second guide rod away from the shell near the left and right sides of the opening is respectively connected with the other end of the support rod.

[0010] Preferably, the first guide rod is rotatably connected with the first adapter block, the second guide rod is rotatably connected with the second adapter block, the first connecting block and the second connecting block are triangular, the first connecting block is rotatably installed on the end of the first guide rod away from the shell, the second connecting block is rotatably installed on the end of the second guide rod away from the shell, and when the first connecting block is connected with the second connecting block on the adjacent pulling shaft, a triangle with the top angle facing away from the opening is formed, and the first connecting block and the second connecting block near the left and right sides of the opening are respectively connected with the support rod.

[0011] Preferably, the first connecting block and the second connecting block are connected by a magnetic attraction unit, the magnetic attraction unit comprises a first magnet and a second magnet, the first magnet and the second magnet are installed on the first connecting block and the second connecting block, the magnetic field directions of the first magnet and the second magnet are opposite, and the positions of the first magnet and the second magnet on the first connecting block are opposite to those on the second connecting block.

[0012] Preferably, a rubber pad is sleeved on the outer side wall of the pulling shaft.

[0013] Preferably, the width of the first adapter block and the second adapter block is greater than or equal to the diameter of the contact end of the pulling shaft.

[0014] Preferably, the support rod is a telescopic rod structure.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1.The utility model discloses a first guide rod and second guide rod cooperate, the gap between every group of pulling material axle is closed up to make every corn straw enter into the pulling material axle, guarantee that corn straw returning to field device can realize the 100% returning to field processing of all corn straw in single operation, improve work efficiency, avoid the manual follow -up auxiliary processing, reduce the labor cost.

[0017] 2.The utility model discloses a first connecting block and second connecting block first guide rod and second guide rod, first connecting block and second connecting block can form a triangle, better guide corn straw, simultaneously, because first guide rod and second guide rod both ends are rotationally connected, first connecting block and second connecting block are rotationally connected also, make that guide unit can adapt to the pulling material axle of different interval, improve corn straw returning to field device practicality. ACCURACY OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be to the embodiment description needed to use the drawing briefly introduced. In all drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, various elements or parts are not necessarily drawn according to the actual proportion.

[0019] Fig. 1 It is the overall structure schematic diagram of the utility model.

[0020] Fig. 2 It is the top view of the utility model.

[0021] Fig. 3 It is the guide unit structure schematic diagram of the utility model.

[0022] Main drawing mark explanation:

[0023] 1, shell; 11, opening; 2, pulling unit; 21, pulling material axle; 3, crushing unit; 4, guide unit; 41, first adapter block; 42, second adapter block; 43, first guide rod; 44, second guide rod; 45, support rod; 46, first connecting block; 47, second connecting block; 5, magnetic attraction unit; 51, first magnet; 52, second magnet. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0025] Next, referenceFigs. 1 to 3 The working principle of this embodiment is described in detail to make the skilled in the art better understand the utility model:

[0026] A corn straw returning to field device, including shell 1, pull unit 2, cutting unit and crushing unit 3. The side wall of shell 1 is provided with opening 11 for corn straw to enter. Pull unit 2 includes pull shaft 21, pull unit 2 is installed in shell 1 and is close to the side of opening 11, is used for pulling out straw from soil and moving to cutting unit, two pull shafts 21 are a group, and pull shaft 21 partially passes through opening 11 and is located on the outside of shell 1. The end of pull shaft 21 on the outside of shell 1 is conical, can increase the guidance to corn straw. Rubber pad can be fitted on pull shaft 21, increase the friction between pull shaft 21 and corn straw.

[0027] Cutting unit is installed in shell 1 and is located above pull unit 2, is used for cutting off straw and moving cut-off straw to crushing unit 3. Crushing unit 3 is installed in shell 1 and is far from the side of opening 11, is used for completely crushing straw and burying under soil.

[0028] Guiding unit 4 is installed on the end of pull shaft 21 on the outside of shell 1, is used for guiding straw to enter each group of pull shaft 21.

[0029] First adapter block 41 and second adapter block 42 are rotatably installed on the end of each group of pull shaft 21 on the outside of shell 1, one end of first guide rod 43 is rotatably connected with first adapter block 41, one end of second guide rod 44 is rotatably connected with second adapter block 42, the other end of first guide rod 43 is connected with the end of second guide rod 44 of adjacent group of pull shaft 21 away from second adapter block 42. The left and right ends of opening 11 are both provided with support rod 45, and one end of support rod 45 is connected with the edge of opening 11 through bolts.

[0030] First connecting block 46 is rotatably installed on the end of first guide rod 43 away from shell 1, and second connecting block 47 is rotatably installed on the end of second guide rod 44 away from shell 1, the connecting block is triangular, when first connecting block 46 is connected with second connecting block 47 on adjacent pull shaft 21, a triangle with the apex pointing away from opening 11 is formed. The other end of support rod 45 is connected with first connecting block 46 and second connecting block 47 on the left and right ends of opening 11, and support rod 45 can adopt telescopic rod that can be adjusted in length, and is positioned by spring block, so that the guiding unit can adapt to more situations.

[0031] The first guide rod 43 and the second guide rod 44 can be kept in a horizontal state relative to the static state when the material pulling shaft 21 rotates, so that the corn stalks can stably enter the gap of the material pulling shaft 21. The connection of the first connecting block 46 and the second connecting block 47 can completely eliminate the gap between each group of material pulling shafts 21, so that the corn stalks can be stably returned to the field. The rotating connection of the first guide rod 43 and the second guide rod 44 can make the guide unit adapt to different intervals of the material pulling shaft 21, and improve the practicability of the corn stalks returning to the field device. Since the first connecting block 46 and the second connecting block 47 on the two sides of the edge have no corresponding connecting block, the first connecting block 46 and the second connecting block 47 near the left and right sides of the opening 11 are connected with the supporting rod 45. The width of the first adapter block 41 and the second adapter block 42 is greater than or equal to the diameter of the contact end of the material pulling shaft 21, so that when the corn stalks move along the first guide rod or the second guide rod 44, the first adapter block 41 or the second adapter block 42 is not interfered, and the corn stalks can smoothly enter the material pulling shaft 21.

[0032] The first connecting block 46 and the second connecting block 47 are connected by a magnetic attraction unit 5, which includes a first magnet 51 and a second magnet 52. The first connecting block 46 and the second connecting block 47 are provided with the first magnet 51 and the second magnet 52, and the magnetic field directions of the first magnet 51 and the second magnet 52 are opposite, so that the attraction force is generated between them. The positions of the first magnet 51 and the second magnet 52 on the first connecting block 46 are opposite to those on the second connecting block 47. By arranging different magnets, when the first connecting block 46 and the second connecting block 47 are connected, the first magnet 51 on the first connecting block 46 will be accurately combined with the second magnet 52 on the second connecting block 47 under the repulsion of the first magnet 51 and the attraction of the second magnet 52. At this time, the second magnet 52 on the first connecting block 46 is combined with the first magnet 51 on the second connecting block 47.

[0033] The magnetic attraction unit 5 can quickly connect and separate the first connecting block 46 and the second connecting block 47, and can also be positioned automatically, so that the edges of the first connecting block 46 and the second connecting block 47 are more accurately aligned, avoiding the first connecting block 46 and the second connecting block 47, ensuring that the first connecting block 46 and the second connecting block 47 form a complete row of triangles, further improving the guiding function.

[0034] In summary, when the corn straw returning to field device is driven by the agricultural machine to move forward, since the first guide rod 43, the second guide rod 44, the first connecting block 46 and the second connecting block 47 close the gap between each group of the pulling shafts 21, when the corn straw deviates and cannot directly enter into each group of the pulling shafts 21, the corn straw will slide along the first guide rod 43, the second guide rod 44, the first connecting block 46 or the second connecting block 47 under the guidance of the above-mentioned parts, and finally enter into the pulling shaft 21, so that the corn straw returning to field device will not have the situation of missing treatment.

[0035] The foregoing description of the specific exemplary embodiments of the present application is for the purpose of illustrating and describing, not for the purpose of limiting the present application, and obviously, many changes and variations are possible according to the above teachings, although an embodiment of the present application has been shown and described, the specific embodiment is only an explanation of the present application, and is not a limitation of the present application, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, the exemplary embodiments are selected and described for the purpose of explaining the specific principles of the present application and its practical application, so that those skilled in the art can make modifications, replacements, variations and various different selections and changes to the embodiments without creative contribution after reading the specification, as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A corn straw returning to field device, comprising a shell (1), a pulling unit (2), a cutting unit and a crushing unit (3), the shell (1) is provided with an opening (11) on the side wall, the pulling unit (2) comprises pulling shafts (21), the pulling unit (2) is installed in the shell (1) near the opening (11) on one side, for pulling out the straw from the soil and moving to the cutting unit, two pulling shafts (21) are a group, the pulling shaft (21) partially penetrates the opening (11) and is located outside the shell (1); The cutting unit is installed in the shell (1) and is located above the pulling unit (2), for cutting the straw, and moving the cut straw to the crushing unit (3); the crushing unit (3) is installed in the shell (1) away from the opening (11) on one side, for completely crushing the straw and burying it under the soil; characterized in that Further comprising a guide unit (4), the guide unit is installed on the end of the pulling shaft (21) outside the shell (1), for guiding the straw into each group of pulling shafts (21).

2. The corn straw returning to field device according to claim 1, characterized in that, The guide unit (4) comprises a first adapter block (41), a second adapter block (42), a first guide rod (43), a second guide rod (44) and a support rod (45), the first adapter block (41) and the second adapter block (42) are respectively rotatably installed on the end of each group of pulling shafts (21) outside the shell (1), one end of the first guide rod (43) is connected with the first adapter block (41), one end of the second guide rod (44) is connected with the second adapter block (42), the other end of the first guide rod (43) is connected with the end of the second guide rod (44) of the adjacent group of pulling shafts (21) away from the second adapter block (42), one end of two support rods (45) is connected with the edge of the opening (11), the other end of the first guide rod (43) and the second guide rod (44) away from the shell (1) near the opening (11) on both sides is respectively connected with the other end of the support rod (45).

3. The corn stalks returning to field device according to claim 2, characterized in that, Further comprising a first connecting block (46) and a second connecting block (47), the first guide rod (43) is rotatably connected with the first adapter block (41), the second guide rod (44) is rotatably connected with the second adapter block (42), the first connecting block (46) and the second connecting block (47) are triangular, the first connecting block (46) is rotatably installed on the end of the first guide rod (43) away from the shell (1), the second connecting block (47) is rotatably installed on the end of the second guide rod (44) away from the shell (1), when the first connecting block (46) is connected with the second connecting block (47) on the adjacent pulling shaft (21), a triangle with the top angle facing away from the opening (11) is formed, the first connecting block (46) and the second connecting block (47) near the opening (11) on both sides are respectively connected with the support rod (45).

4. The corn stalks returning to field device according to claim 3, characterized in that, The first connecting block (46) and the second connecting block (47) are connected by a magnetic attraction unit (5), the magnetic attraction unit (5) comprises a first magnet (51) and a second magnet (52), the first connecting block (46) and the second connecting block (47) are both provided with the first magnet (51) and the second magnet (52), the magnetic field directions of the first magnet (51) and the second magnet (52) are opposite, and the positions of the first magnet (51) and the second magnet (52) on the first connecting block (46) are opposite to those on the second connecting block (47).

5. The corn stalks returning to field device according to claim 1, characterized in that, A rubber pad is sleeved on the outer wall of the pulling shaft (21).

6. The corn stalks returning to field device according to claim 2, characterized in that, The width of the first adapter block (41) and the second adapter block (42) is greater than or equal to the diameter of the contact end of the pulling shaft (21).

7. The corn stalks returning to field device according to claim 2, characterized in that, The support rod (45) is a telescopic rod structure.

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