Protective farming straw returning machine

Abstract

The invention relates to the technical field of corn straw returning, in particular to a protective tillage straw returning machine which comprises a cutting assembly, a smashing assembly and a stirring assembly. The cutting assembly comprises a first assembling cylinder and a cutter, the first assembling cylinder is obliquely arranged, and the first end of the first assembling cylinder is higher than the second end of the first assembling cylinder. The smashing assembly comprises a second assembling cylinder and a smashing device, the second assembling cylinder is arranged at the second end of the first assembling cylinder, and the central axis of the second assembling cylinder and the central axis of the first assembling cylinder are collinear. The stirring assembly comprises a stirring bin and a stirrer, and the stirring bin is arranged below the second assembling cylinder. According to the corn straw stirring device, the first assembling cylinder and the second assembling cylinder are both obliquely arranged, all the corn straw can smoothly enter the stirring bin after being cut and smashed, and waste of the corn straw is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of returning corn stalks to fields, and specifically relates to a protective tillage stalk returning machine to fields. Background Art

[0002] Corn straw returning to the field can effectively improve soil fertility. The traditional working mode of harvesting, crushing and throwing the straw has low humidity and slow decomposition. The hidden pests and diseases in the corn straw will endanger the crops to be sown later. Therefore, after crushing the straw, water, medicine and fertilizer are mixed first, and then the straw is turned to the lower layer of the soil through a deep plow. No subsequent treatment is required, and fermentation and decomposition can be completed quickly, which has a significant effect on improving soil fertility. For example, the Chinese utility model patent with patent application number "CN202322349977.1" provides a corn straw crushing and returning machine to the field. When the device is in use, the cutter cuts the corn straw in sections, the crushing knife in the crushing bin further crushes the corn straw and brings it to the mixing bin, and sprinkles an appropriate amount of water, nitrogen fertilizer, medicine, straw fermentation agent, etc. into the mixing bin through the gap, and the mixing unit fully mixes the materials in the mixing bin.

[0003] However, this device has its shortcomings. Since the inner bottom surfaces of the cutting bin and the crushing bin in the device are both horizontal, after the corn stalks are cut or crushed, a considerable amount of corn stalks will be retained in the gap between the cutting knife and the crushing knife and cannot be brought into the mixing bin, resulting in a waste of corn stalks. Summary of the invention

[0004] The purpose of the present invention is to provide a protective tillage straw return machine, wherein the first assembly cylinder and the second assembly cylinder are both arranged at an angle, and after the corn stalks are cut and broken, all of them can smoothly enter the mixing bin without causing waste of the corn stalks.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A conservation tillage straw returner, comprising: a cutting assembly, the cutting assembly comprising a first assembly barrel, the first assembly barrel is tilted, the height of the first end of the first assembly barrel is higher than the second end, and a cutter is provided inside the first assembly barrel; a crushing assembly, the crushing assembly comprising a second assembly barrel, the second assembly barrel is arranged at the second end of the first assembly barrel, the central axis of the second assembly barrel is colinear with the central axis of the first assembly barrel, the interior of the second assembly barrel is connected to the interior of the first assembly barrel, and a crusher is provided inside the second assembly barrel; a stirring assembly, the stirring assembly comprising a stirring bin, the stirring bin is arranged below the second assembly barrel, the interior of the stirring bin is connected to the interior of the second assembly barrel, and a stirrer is provided inside the stirring bin.

[0006] Preferably, the cutting assembly also includes a gathering assembly, which is arranged inside the first assembly cylinder; the gathering assembly includes: a first push plate, which is arranged at the bottom of the first assembly cylinder and can slide along the inner wall of the first assembly cylinder; a second push plate, which is arranged at the bottom of the first assembly cylinder and can slide along the inner wall of the first assembly cylinder; a first driver, which is fixedly arranged on the inner wall of the first assembly cylinder, and the output end of the first driver is connected to the first push plate; a second driver, which is fixedly arranged on the inner wall of the first assembly cylinder, and the output end of the second driver is connected to the second push plate.

[0007] Preferably, the first push plate and the second push plate are both arc-shaped plates, the inner concave surface of the first push plate and the inner concave surface of the second push plate are opposite, and a plurality of cutting channels distributed at equal intervals are provided on the side wall of the first push plate, and the cutting channel runs through the first push plate, and storage cavities are provided on both sides of the cutting channel, and the cutting channel is connected to the storage cavity, and a sealing component is provided in the storage cavity; the sealing component comprises: an arc-shaped sealing plate, the arc-shaped sealing plate can slide along the inner wall of the storage cavity, the width of the arc-shaped sealing plate is greater than half the width of the cutting channel, and a cutting bevel is provided on the arc-shaped sealing plate, and the cutting bevel is provided at one end close to the cutting channel and on the same side as the outer convex surface of the first push plate; a reset spring, the two ends of the reset spring are respectively connected to the arc-shaped sealing The plate is fixedly connected to the inner wall of the storage chamber; the cutter includes: a first transmission shaft, which is arranged above the gathering component, the length extension direction of the first transmission shaft is the same as the length extension direction of the first pushing plate, the first end of the first transmission shaft is rotatably connected to the first support frame, the second end of the first transmission shaft is rotatably connected to the second support frame, and the first support frame and the second support frame are both fixedly connected to the inner wall of the first assembly cylinder; a third driver, which is fixedly arranged on the first support frame, and the output end of the third driver is connected to the first transmission shaft; a plurality of cutting blades are all arranged above the first transmission shaft, and the positions of the plurality of cutting blades respectively correspond to the positions of the plurality of cutting channels, and the cutting blades are connected to the first transmission shaft through a bent rod, and the bent rod is a U-shaped structure.

[0008] Preferably, the cutting assembly further comprises a first material stopper assembly, which is arranged inside the first assembly cylinder and located on the side of the gathering assembly close to the crushing assembly, and the crushing assembly further comprises a second material stopper assembly, which is located on the side of the crusher close to the cutting assembly; the first material stopper assembly comprises: a circular material stopper sheet, the central axis of which is colinear with the central axis of the first assembly cylinder, the circular material stopper sheet can slide along the inner wall of the first assembly cylinder, and a notch is provided on the top of the circular material stopper sheet; a fourth driver is fixedly arranged on the second support frame, and the output end of the fourth driver is connected to the circular material stopper sheet; the crusher comprises: a fifth driver, which is fixedly arranged on the inner wall of the second assembly cylinder away from the cutting assembly; a second transmission shaft, the first end of the second transmission shaft is connected to the output end of the fifth driver, the second end of the second transmission shaft is rotatably connected to the third support frame, the third support frame is fixedly connected to the inner wall of the second assembly cylinder, a plurality of evenly distributed crushing blades are provided on the side wall of the second transmission shaft, the second material stopper assembly is mirror-symmetrical with the first material stopper assembly, and the second material stopper assembly is fixedly connected to the third support frame.

[0009] Preferably, the cutting assembly also includes a material-pickup assembly, which is arranged at the bottom of the interior of the second assembly cylinder and between the first push plate and the second push plate; the material-pickup assembly includes: an arc-shaped material-pickup plate, the inner bottom surface of the first assembly cylinder is provided with a receiving groove, the arc-shaped material-pickup plate is arranged in the receiving groove, the arc-shaped material-pickup plate is hinged to the inner wall of the receiving groove at one end close to the circular material-blocking piece, the top surface of the arc-shaped material-pickup plate is an inner concave surface, and is flush with the inner bottom surface of the first assembly cylinder; a driving block, the bottom surface of the arc-shaped material-pickup plate close to one end of the circular material-blocking piece is provided with A first avoidance groove, a second avoidance groove is provided on the bottom surface of the storage groove, the second avoidance groove corresponds to the position of the first avoidance groove, the cross-sectional shape of the first avoidance groove is a triangle, the cross-sectional shape of the second avoidance groove is a rectangle, the depth of the first avoidance groove close to one end of the circular baffle piece is greater than the depth away from one end of the circular baffle piece, and the driving block can slide along the inner walls of the first avoidance groove and the second avoidance groove; a sixth driver is provided in the second avoidance groove and fixedly connected to the inner wall of the second avoidance groove, and the output end of the sixth driver is connected to the driving block.

[0010] Preferably, the stirring assembly also includes a connecting box, which is arranged between the second assembly cylinder and the stirring chamber and fixedly connected to the second assembly cylinder, and the interior of the connecting box is communicated with the interiors of the second assembly cylinder and the stirring chamber; the stirring chamber includes an upper shell and a lower shell, the upper shell is fixedly connected to the connecting box, the lower shell is detachably connected to the upper shell, and the agitator is fixedly connected to the inner top surface of the upper shell.

[0011] Preferably, a material transfer port is provided at the bottom of the second assembly cylinder, and the second assembly cylinder is connected with the interior of the connecting box through the material transfer port. A baffle is provided inside the second assembly cylinder and on the side of the material transfer port away from the second material blocking component. The crushing component also includes two third material blocking components, and the two third material blocking components are both arranged inside the connecting box and have mirror-symmetrical structures. The third material blocking component includes: an arc-shaped material blocking piece, the shape of the arc-shaped material blocking piece matches the shape of the material transfer port, and the arc-shaped material blocking piece can slide along the inner wall of the material transfer port; a seventh driver is fixedly arranged on the inner wall of the connecting box, and the output end of the seventh driver is connected to the arc-shaped material blocking piece.

[0012] Preferably, it also includes an extrusion component, which is arranged at the first end of the first assembly cylinder; the extrusion component includes: a circular connecting plate, which is fixedly arranged on the end surface of the first end of the first assembly cylinder, and a feed port is provided at the bottom of the circular connecting plate, and the feed port corresponds to the position of the gathering component; a discharge hopper, the first end of the discharge hopper is arranged in the feed port and is fixedly connected to the circular connecting plate, the discharge hopper is communicated with the interior of the first assembly cylinder, the interior of the middle section of the discharge hopper is provided with an arc-shaped guide surface, and the second end of the discharge hopper is open; an extruder is arranged inside the second end of the discharge hopper.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (I) The present invention includes a cutting assembly, a crushing assembly and a stirring assembly. The cutting assembly includes a first assembly barrel and a cutter, the crushing assembly includes a second assembly barrel and a crusher, and the stirring assembly includes a stirring chamber and a stirrer. The cutter can cut corn stalks into several sections, and the crusher can crush the corn stalks. The first assembly barrel and the second assembly barrel are both arranged at an angle, and after the corn stalks are cut and crushed, all of them can smoothly enter the stirring chamber, without causing waste of corn stalks.

[0015] (ii) The present invention can complete the crushing of corn stalks and the fine mixing of water, pesticides and fertilizers. The processed corn stalk residues are scientifically spread according to the field area and fertility conditions, and are not limited by the original amount of stalks in the field. After being turned over to the lower layer of the soil by deep plowing, no subsequent treatment is required, and fermentation and decomposition can be completed quickly, which has a significant effect on improving soil fertility. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 An axonometric view of the present invention at one angle;

[0017] Figure 2 It is an axonometric view of the present invention from another angle;

[0018] Figure 3 It is a front cross-sectional view of the present invention;

[0019] Figure 4 is an axonometric cross-sectional view of the cutting assembly of the present invention;

[0020] Figure 5 for Figure 4 The enlarged view of point A in the middle;

[0021] Figure 6 is an axonometric view of the cutter in the present invention;

[0022] Figure 7 is an axonometric view of the gathering assembly of the present invention;

[0023] Figure 8 It is an axonometric exploded view of the first push plate and the plugging assembly in the present invention;

[0024] Fig. 9 It is an axonometric view of the first material stopper assembly in the present invention;

[0025] Fig.10 It is a front view of the cutting assembly of the present invention after the straw enters the first assembly tube;

[0026] Fig.11 It is a front view of the cutting assembly of the present invention after the straw is clamped by the gathering assembly;

[0027] Fig.12 It is a front view of the cutting assembly of the present invention after the cutter cuts the straw;

[0028] Fig.13 It is a front view of the cutting assembly of the present invention after the material-moving assembly pushes away the straw;

[0029] Fig.14 An axonometric cross-sectional view of a crushing assembly at one angle in the present invention;

[0030] Fig.15 It is an axonometric cross-sectional view of another angle of the crushing assembly of the present invention;

[0031] Fig.16 It is an axonometric view of the stirring assembly in the present invention;

[0032] Fig.17 It is an axonometric exploded view of the stirring assembly in the present invention;

[0033] Fig.18 It is an axonometric exploded view of the extrusion assembly in the present invention;

[0034] Fig.19 It is an axonometric cross-sectional view of the hopper in the present invention;

[0035] Fig. 20 It is an axonometric view of the carrier vehicle in the present invention.

[0036] Reference numerals include:

[0037] 1-cutting assembly, 11-first assembly cylinder, 111-storage groove, 112-second avoidance groove, 12-cutter, 121-first transmission shaft, 122-first support frame, 123-second support frame, 124-third driver, 125-cutting blade, 126-bent rod, 13-gathering assembly, 131-first push plate, 1311-cutting channel, 1312-storage cavity, 132-second push plate, 133-first driver, 134-second driver, 14-blocking assembly, 141-arc blocking plate, 1411-cutting bevel, 142-reset spring, 15-first blocking assembly, 151-circular blocking piece, 1511-notch, 152-fourth driver, 16-pickup assembly, 161-arc The material transfer plate, 1611-the first avoidance groove, 162-the driving block, 163-the sixth driver, 2-the crushing assembly, 21-the second assembly cylinder, 211-the material transfer port, 22-the crusher, 221-the fifth driver, 222-the second transmission shaft, 223-the third support frame, 224-the crushing blade, 23-the second material blocking assembly, 24-the baffle, 25-the third material blocking assembly, 251-the arc-shaped material blocking sheet, 252-the seventh driver, 3-the stirring assembly, 31-the stirring bin, 311-the upper shell, 312-the lower shell, 32-the stirrer, 33-the connecting box, 4-the extrusion assembly, 41-the circular connecting plate, 411-the feeding port, 42-the discharge hopper, 421-the arc-shaped guide surface, 43-the extruder, 5-the carrier, 6-the corn stalks. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1-20 The present invention provides a technical solution: a conservation tillage straw 6 return machine, comprising a cutting component 1, a crushing component 2 and a stirring component 3. The cutting component 1 comprises a first assembly barrel 11 and a cutter 12, the crushing component 2 comprises a second assembly barrel 21 and a crusher 22, and the stirring component 3 comprises a stirring chamber 31 and a stirrer 32. The corn stalks 6 can enter the interior of the first assembly barrel 11 from the first end of the first assembly barrel 11, and the cutter 12 can cut the corn stalks 6 into several sections. Then the chopped corn stalks 6 slide downward into the interior of the second assembly barrel 21, and the crusher 22 can crush the corn stalks 6. Next, the crushed corn stalks 6 will fall downward into the stirring chamber 31, and the stirrer 32 will fully mix the corn stalk 6 residue with water, nitrogen fertilizer, medicine, straw fermentation agent and other substances. In the present invention, the first assembly cylinder 11 and the second assembly cylinder 21 are both arranged at an angle, and after the corn stalks 6 are cut and broken, they can all enter the mixing chamber 31 smoothly, without causing waste of the corn stalks 6.

[0040] See also Figure 1-6 , the cutter 12 includes a first transmission shaft 121, a first support frame 122, a second support frame 123, a third driver 124, a plurality of cutting blades 125 and a plurality of bent rods 126. When the corn stalks 6 enter the interior of the first assembly tube 11, they will accumulate at the bottom of the first assembly tube 11. Then the third driver 124 works to drive the first transmission shaft 121 to rotate, and the first transmission shaft 121 drives the plurality of cutting blades 125 to rotate through the plurality of bent rods 126, and the plurality of cutting blades 125 cut the corn stalks 6 into a plurality of sections. Since the plurality of cutting blades 125 are distributed at equal intervals, the plurality of corn stalks 6 after cutting are substantially equal in length, which is convenient for subsequent crushing by the pulverizer 22. In this embodiment, the third driver 124 is a rotary motor.

[0041] See also Figure 1-4 and Fig.14 The crusher 22 includes a fifth driver 221, a second transmission shaft 222, a third support frame 223 and a plurality of crushing blades 224. When the cut corn stalks 6 enter the second assembly cylinder 21, the fifth driver 221 drives the second transmission shaft 222 to rotate, and the second transmission shaft 222 drives the plurality of crushing blades 224 to rotate together to crush the corn stalks 6.

[0042] See also Figure 1-8 The cutting assembly 1 further includes a gathering assembly 13, which includes a first push plate 131, a second push plate 132, a first driver 133, and a second driver 134. The first push plate 131 and the second push plate 132 are both arc-shaped plates, and a plurality of cutting channels 1311 are arranged on the side wall of the first push plate 131 at equal intervals. Fig.10 When the corn stalks 6 enter the first assembly tube 11, all of the corn stalks 6 are located between the first push plate 131 and the second push plate 132. At this time, the corn stalks 6 are loose and have a large distance between them. Fig.11 Then, the first driver 133 and the second driver 134 work to drive the first push plate 131 and the second push plate 132 to slide along the inner wall of the first assembly tube 11 and approach each other. The first push plate 131 and the second push plate 132 tightly clamp the corn stalks 6, and the corn stalks 6 are tightly fitted together. Fig.12 , then the cutter 12 works, the first transmission shaft 121 drives the plurality of cutting blades 125 to rotate 180°, and the plurality of cutting blades 125 respectively enter the inner side of the gathering component 13 through the plurality of cutting channels 1311, and cut the corn stalks 6 into a plurality of sections. Since the corn stalks 6 have been restricted, the plurality of corn stalks 6 will not become loose during the cutting process, and all the corn stalks 6 can be completely cut. In this embodiment, the bent rod 126 has a U-shaped structure, so one end of the bent rod 126 can penetrate into the inner side of the gathering component 13 together with the cutting blade 125, and will not interfere with the first push plate 131. Please refer to Fig.13 , and finally the first transmission shaft 121 drives the cutting blades 125 to rotate 180° in the opposite direction, the cutting blades 125 leave the inner side of the gathering assembly 13, and the cut corn stalks 6 leave the interior of the first assembly tube 11 and slide downward to the interior of the second assembly tube 21. In this embodiment, the first driver 133 includes a cutting rotary motor, a first gear and an arc-shaped rack. The cutting rotary motor is fixedly connected to the first assembly tube 11, and the arc-shaped rack is fixedly connected to the first push plate 131. The cutting rotary motor drives the first gear to rotate, and the first gear is meshed with the arc-shaped rack, and the arc-shaped rack can drive the first push plate 131 to move. The structures of the first driver 133 and the second driver 134 are mirror-symmetrical, so the second driver 134 can drive the second push plate 132 to move in the same way.

[0043] See also Figure 1-8, storage cavities 1312 are provided on both sides of the cutting channel 1311, and a blocking assembly 14 is provided in the storage cavity 1312. The blocking assembly 14 includes an arc-shaped blocking plate 141 and a return spring 142, and a cutting bevel 1411 is provided on the arc-shaped blocking plate 141. When the cutting blade 125 moves away from the gathering assembly 13, the return spring 142 can apply pressure to the arc-shaped blocking plate 141, so that the two adjacent arc-shaped blocking plates 141 abut against each other and completely block the cutting channel 1311. When the cutting blade 125 rotates, it will first contact the cutting bevel 1411 and push the two adjacent arc-shaped blocking plates 141 away. The arc-shaped blocking plates 141 enter the storage cavity 1312, and the return spring 142 is compressed to store elastic potential energy. Subsequently, the cutting blade 125 can enter the inner side of the gathering assembly 13 and cut the corn stalk 6 into several sections. Please refer to Fig.12 , the cutting blades 125 will not completely enter the inner side of the gathering assembly 13, so the blocking assembly 14 will not seal the cutting blades 125 inside the gathering assembly 13. When the first transmission shaft 121 drives the cutting blades 125 to rotate 180° in the opposite direction, the cutting blades 125 can smoothly leave the cutting channel 1311. At this time, the return spring 142 releases its elastic potential energy and stretches, so that the two adjacent arc-shaped blocking plates 141 completely block the cutting channel 1311 again, and the chopped corn stalks 6 will not move from the cutting channel 1311 to the outside of the gathering assembly 13.

[0044] See also Figure 1-13 The cutting assembly 1 further comprises a first material blocking assembly 15, the first material blocking assembly 15 comprises a circular material blocking piece 151 and a fourth driver 152, and a notch 1511 is provided at the top of the circular material blocking piece 151. When the corn stalks 6 enter the interior of the first assembly barrel 11, the bottom of the circular material blocking piece 151 can block the corn stalks 6, and at this time the corn stalks 6 cannot enter the second assembly barrel 21. When the corn stalks 6 are cut into several sections, and the cutting blade 125 rotates in the opposite direction to leave the cutting channel 1311, the fourth driver 152 drives the circular material blocking piece 151 to rotate 180°, and the notch 1511 moves to the bottom of the circular material blocking piece 151, and at this time the several corn stalks 6 after cutting can leave the first assembly barrel 11 through the notch 1511 and slide into the second assembly barrel 21. In this embodiment, the fourth driver 152 is a material blocking rotating motor, and the material blocking rotating motor is fixedly connected to the second support frame 123.

[0045] See also Figure 1-14The crushing assembly 2 further includes a second material blocking assembly 23, which is mirror-symmetrical to the first material blocking assembly 15, so the second material blocking assembly 23 can also release the corn stalks 6 or block the corn stalks 6. When the corn stalks 6 need to slide into the second assembly barrel 21, the opening on the second material blocking assembly 23 is aligned with the notch 1511, and the second material blocking assembly 23 will not hinder the corn stalks 6. When the crushing assembly 2 breaks the corn stalks 6, the opening on the second material blocking assembly 23 and the notch 1511 are staggered, and the corn stalks 6 will not return to the first assembly barrel 11.

[0046] See also Figure 1-14 The cutting assembly 1 also includes a material-dispensing assembly 16, which includes an arc-shaped material-dispensing plate 161, a driving block 162 and a sixth driver 163. The inner bottom surface of the first assembly cylinder 11 is provided with a receiving groove 111, and the arc-shaped material-dispensing plate 161 is arranged in the receiving groove 111, and the arc-shaped material-dispensing plate 161 is hinged to the inner wall of the receiving groove 111. The bottom surface of the arc-shaped material-dispensing plate 161 is provided with a first avoidance groove 1611, and the bottom surface of the receiving groove 111 is provided with a second avoidance groove 112. The cross-sectional shape of the first avoidance groove 1611 is triangular, and the cross-sectional shape of the second avoidance groove 112 is rectangular. The sixth driver 163 is arranged in the second avoidance groove 112, and the output end of the sixth driver 163 is connected to the driving block 162. When the corn stalks 6 enter the interior of the first assembly tube 11, the top surface of the arc-shaped material-dispensing plate 161 is flush with the inner bottom surface of the first assembly tube 11, and the driving block 162 is located near the side of the circular material-blocking piece 151. When the corn stalks 6 are cut into several sections and the notch 1511 moves to the bottom of the circular material-blocking piece 151, the sixth driver 163 works, driving the driving block 162 to move away from the circular material-blocking piece 151, and the driving block 162 slides along the inner wall of the first avoidance groove 1611 while lifting the arc-shaped material-dispensing plate 161. At this time, the arc-shaped material-dispensing plate 161 rotates upward, and the inclination angle of the arc-shaped material-dispensing plate 161 increases, so that all the corn stalks 6 slide downward under the action of gravity, and slide into the second assembly tube 21 through the notch 1511. In this embodiment, the sixth driver 163 is a material-dispensing electric telescopic rod, and the material-dispensing electric telescopic rod is fixedly connected to the inner wall of the second avoidance groove 112.

[0047] See also Figure 1-16The stirring assembly 3 also includes a connecting box 33, which is arranged between the second assembly cylinder 21 and the stirring chamber 31. A material transfer port 211 is provided at the bottom of the second assembly cylinder 21, and a baffle 24 is provided inside the second assembly cylinder 21. The crushing assembly 2 also includes two third material blocking assemblies 25, which are both arranged inside the connecting box 33 and have mirror-symmetric structures. The third material blocking assembly 25 includes an arc-shaped material blocking piece 251 and a seventh driver 252. In the process of the crusher 22 crushing the corn stalks 6, the two arc-shaped material blocking pieces 251 can completely block the material transfer port 211, and the corn stalks 6 cannot enter the stirring chamber 31 at this time. When the corn stalks 6 are completely crushed, the seventh driver 252 drives the arc-shaped material blocking piece 251 to move away from the material transfer port 211, and the crushed corn stalks 6 will leave the second assembly cylinder 21 through the material transfer port 211, and then pass through the connecting box 33 into the stirring chamber 31. Since the baffle plate 24 is tilted and flush with the side wall of the material transfer opening 211 away from the cutting assembly 1, the corn stalk 6 will directly slide into the material transfer opening 211 after contacting the baffle plate 24. In this embodiment, the seventh driver 252 is a material-blocking electric telescopic rod, which is fixedly connected to the inner wall of the connection box 33.

[0048] See also Figure 1-17 The stirring chamber 31 includes an upper shell 311 and a lower shell 312. The lower shell 312 is detachably connected to the upper shell 311, and a box door is provided on the top surface of the upper shell 311. The agitator 32 includes a stirring rotary motor, a stirring shaft and a plurality of stirring blades. The stirring rotary motor is fixedly connected to the top inner wall of the upper shell 311. When the debris of the corn stalk 6 enters the stirring chamber 31, an appropriate amount of water, nitrogen fertilizer, medicine, straw fermentation agent and other substances can be added to the stirring chamber 31 through the box door. Then the agitator 32 works, the stirring rotary motor drives the stirring shaft to rotate, and the stirring shaft drives the plurality of stirring blades to rotate, so that the materials in the stirring chamber 31 can be fully mixed. When the stirring work is completed, the lower shell 312 is removed and the corn stalk 6 can be taken away. The present invention can complete the crushing of corn stalks 6 and the fine mixing of water, medicine and fertilizer. The crushed corn stalks 6 after the treatment are scientifically spread according to the area and fertility of the field, and are not limited by the original amount of stalks in the field. After being turned over to the lower layer of the soil by deep plowing, no subsequent treatment is required, and fermentation and decomposition can be completed quickly, which has a significant effect on improving soil fertility.

[0049] See also Figure 1-20The present invention further includes an extrusion assembly 4 and a carrier 5. The extrusion assembly 4 is arranged at the first end of the first assembly cylinder 11. The extrusion assembly 4 can first extrude and deform the corn stalks 6 before the corn stalks 6 enter the first assembly cylinder 11, so that the structure of the corn stalks 6 is looser, and the efficiency of subsequent cutting and crushing of the corn stalks 6 is improved. The carrier 5 is arranged below the cutting assembly 1, and the first assembly cylinder 11 and the mixing bin 31 are both fixedly connected to the carrier 5. The bottom of the carrier 5 is provided with a plurality of electric pulleys, and the present invention can be moved to any position by the carrier 5.

[0050] See also Figure 1-20 The extrusion assembly 4 includes a circular connecting plate 41, a discharge hopper 42 and an extruder 43. The bottom of the circular connecting plate 41 is provided with a feed port 411. The middle section of the discharge hopper 42 is provided with an arc-shaped guide surface 421. The first end of the discharge hopper 42 is provided in the feed port 411, and the second end of the discharge hopper 42 is open. The extruder 43 is provided inside, and the extruder 43 includes an extrusion frame, an extrusion rotating motor, two extrusion rollers and two second gears. There is a gap between the two extrusion rollers. The corn stalk 6 is placed between the two extrusion rollers, and the extruder 43 works. The extrusion rotating motor drives the first extrusion roller and the first second gear to rotate forward, the two second gears are meshed, and the second second gear and the second extrusion roller rotate in the opposite direction. After the corn stalk 6 is extruded and deformed, it is transported to the inside of the discharge hopper 42. After the corn stalk 6 contacts the arc-shaped guide surface 421, it can move along the arc-shaped guide surface 421 to the first end of the discharge hopper 42, and enter the first assembly cylinder 11 through the feed port 411. Since the feed port 411 corresponds to the position of the gathering component 13 , it can be ensured that the corn stalks 6 are located between the first pushing plate 131 and the second pushing plate 132 after entering the first assembly tube 11 .

[0051] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0052] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A conservation tillage straw return machine, characterized in that: include: A cutting assembly, the cutting assembly comprising a first assembly cylinder, the first assembly cylinder is tilted, the height of the first end of the first assembly cylinder is higher than the second end, and a cutter is arranged inside the first assembly cylinder; A crushing assembly, the crushing assembly comprising a second assembly cylinder, the second assembly cylinder is arranged at the second end of the first assembly cylinder, the central axis of the second assembly cylinder is collinear with the central axis of the first assembly cylinder, the interior of the second assembly cylinder is communicated with the interior of the first assembly cylinder, and a crusher is arranged inside the second assembly cylinder; The stirring component comprises a stirring chamber, wherein the stirring chamber is arranged below the second assembly cylinder, the interior of the stirring chamber is communicated with the interior of the second assembly cylinder, and an agitator is arranged inside the stirring chamber.

2. The conservation tillage straw return machine according to claim 1, characterized in that: The cutting assembly further comprises a gathering assembly, and the gathering assembly is arranged inside the first assembly cylinder; The gathering component comprises: A first push plate, disposed at the bottom of the first assembly tube and capable of sliding along the inner wall of the first assembly tube; A second push plate is disposed at the bottom of the first assembly tube and is capable of sliding along the inner wall of the first assembly tube; A first driver is fixedly arranged on the inner wall of the first assembly cylinder, and an output end of the first driver is connected to the first push plate; The second driver is fixedly arranged on the inner wall of the first assembly cylinder, and the output end of the second driver is connected to the second pushing plate.

3. The conservation tillage straw return machine according to claim 2, characterized in that: The first push plate and the second push plate are both arc-shaped plates, the inner concave surface of the first push plate is opposite to the inner concave surface of the second push plate, a plurality of cutting channels distributed at equal intervals are provided on the side wall of the first push plate, the cutting channels run through the first push plate, storage cavities are provided on both sides of the cutting channels, the cutting channels are connected to the storage cavities, and a blocking component is provided in the storage cavities; The blocking component comprises: An arc-shaped blocking plate, wherein the arc-shaped blocking plate can slide along the inner wall of the storage cavity, the width of the arc-shaped blocking plate is greater than half the width of the cutting channel, and a cutting bevel is provided on the arc-shaped blocking plate, wherein the cutting bevel is provided near one end of the cutting channel and is located on the same side as the outer convex surface of the first push plate; A return spring, two ends of which are fixedly connected to the arc-shaped blocking plate and the inner wall of the receiving chamber respectively; The cutter comprises: A first transmission shaft is arranged above the gathering assembly, the length extension direction of the first transmission shaft is the same as the length extension direction of the first push plate, the first end of the first transmission shaft is rotatably connected to the first support frame, the second end of the first transmission shaft is rotatably connected to the second support frame, and the first support frame and the second support frame are both fixedly connected to the inner wall of the first assembly cylinder; A third driver is fixedly arranged on the first support frame, and an output end of the third driver is connected to the first transmission shaft; A plurality of cutting blades are arranged above the first transmission shaft, and the positions of the plurality of cutting blades respectively correspond to the positions of the plurality of cutting channels. The cutting blades are connected to the first transmission shaft via a bent rod, and the bent rod is in a U-shaped structure.

4. The conservation tillage straw return machine according to claim 3, characterized in that: The cutting assembly further includes a first material blocking assembly, which is arranged inside the first assembly cylinder and located on a side of the gathering assembly close to the crushing assembly. The crushing assembly further includes a second material blocking assembly, which is located on a side of the crusher close to the cutting assembly. The first material blocking component comprises: A circular material blocking piece, wherein the central axis of the circular material blocking piece is colinear with the central axis of the first assembly tube, the circular material blocking piece can slide along the inner wall of the first assembly tube, and a notch is provided on the top of the circular material blocking piece; A fourth driver is fixedly mounted on the second support frame, wherein an output end of the fourth driver is connected to the circular blocking piece; The pulverizer comprises: A fifth driver, fixedly disposed on an inner wall of the second assembly cylinder away from the cutting assembly; A second transmission shaft, a first end portion of the second transmission shaft is connected to an output end of the fifth driver, a second end portion of the second transmission shaft is rotatably connected to a third support frame, the third support frame is fixedly connected to an inner wall of the second assembly cylinder, a plurality of evenly distributed crushing blades are provided on the side wall of the second transmission shaft, the structure of the second material blocking assembly is mirror-symmetrical to that of the first material blocking assembly, and the second material blocking assembly is fixedly connected to the third support frame.

5. The conservation tillage straw return machine according to claim 4, characterized in that: The cutting assembly further comprises a material pushing assembly, which is arranged at the bottom of the interior of the second assembly cylinder and between the first pushing plate and the second pushing plate; The material shifting assembly comprises: An arc-shaped material-discharging plate, wherein the inner bottom surface of the first assembly tube is provided with a receiving groove, the arc-shaped material-discharging plate is arranged in the receiving groove, one end of the arc-shaped material-discharging plate close to the circular material-blocking piece is hinged to the inner wall of the receiving groove, and the top surface of the arc-shaped material-discharging plate is an inner concave surface and is flush with the inner bottom surface of the first assembly tube; A driving block, a first avoidance groove is provided on the bottom surface of the arc-shaped material stripping plate near one end of the circular material blocking piece, a second avoidance groove is provided on the bottom surface of the storage groove, the second avoidance groove corresponds to the position of the first avoidance groove, the cross-sectional shape of the first avoidance groove is a triangle, the cross-sectional shape of the second avoidance groove is a rectangle, the depth of the first avoidance groove near one end of the circular material blocking piece is greater than the depth away from one end of the circular material blocking piece, and the driving block can slide along the inner walls of the first avoidance groove and the second avoidance groove; The sixth driver is disposed in the second avoidance groove and fixedly connected to the inner wall of the second avoidance groove, and the output end of the sixth driver is connected to the driving block.

6. The conservation tillage straw return machine according to claim 4, characterized in that: The stirring assembly further includes a connection box, which is disposed between the second assembly cylinder and the stirring chamber and is fixedly connected to the second assembly cylinder, and the interior of the connection box is in communication with the interiors of the second assembly cylinder and the stirring chamber; The stirring chamber comprises an upper shell and a lower shell, the upper shell is fixedly connected to the connecting box, the lower shell is detachably connected to the upper shell, and the stirrer is fixedly connected to the inner top surface of the upper shell.

7. The conservation tillage straw return machine according to claim 5, characterized in that: A material transfer port is provided at the bottom of the second assembly cylinder, and the second assembly cylinder is communicated with the interior of the connection box through the material transfer port. A baffle is provided inside the second assembly cylinder and located on the side of the material transfer port away from the second material blocking assembly. The crushing assembly further includes two third material blocking assemblies, and the two third material blocking assemblies are both arranged inside the connection box and have mirror-symmetric structures. The third material blocking assembly comprises: An arc-shaped material blocking piece, the shape of which matches the shape of the material transfer opening, and the arc-shaped material blocking piece can slide along the inner wall of the material transfer opening; The seventh driver is fixedly arranged on the inner wall of the connection box, and the output end of the seventh driver is connected to the arc-shaped blocking piece.

8. The conservation tillage straw return machine according to claim 2, characterized in that: It also includes an extrusion assembly, which is arranged at the first end of the first assembly cylinder; The extrusion assembly comprises: A circular connecting plate, fixedly arranged on the end surface of the first end of the first assembly cylinder, a feed port is arranged at the bottom of the circular connecting plate, and the feed port corresponds to the position of the gathering component; A discharge hopper, wherein the first end of the discharge hopper is arranged in the feed port and is fixedly connected to the circular connecting plate, the discharge hopper is communicated with the interior of the first assembly cylinder, an arc-shaped guide surface is arranged inside the middle section of the discharge hopper, and the second end of the discharge hopper is open; The extruder is arranged inside the second end of the discharge hopper.

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