Corn straw conveying, crushing and throwing device based on self-rotation disturbance soil removal principle
The corn stalk conveying, crushing and throwing device, which uses the principle of self-rotation disturbance to remove soil, solves the problem of high soil content in straw collection equipment, achieves efficient soil removal and uniform crushing, and improves operating efficiency and device lifespan.
Patent Information
- Application Number
- CN202510502230.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2045-04-22
AI Technical Summary
Existing straw collection equipment suffers from problems such as high soil content, low efficiency, and high energy consumption. In particular, the hammer-claw type picker is prone to picking up soil when collecting corn straw, which affects its subsequent utilization.
A corn stalk conveying, crushing and throwing device based on the principle of self-rotation disturbance soil removal is adopted. While conveying the stalks through the auger blades, the soil removal teeth realize the self-rotation to clean the soil. Combined with the innovative structure of crushing teeth and kneading teeth, the device achieves efficient soil removal and uniform crushing of the stalks.
It significantly improves the cleanliness of corn stalks, reduces wear and tear on the crushing device caused by soil impurities, extends its service life, and enhances crushing efficiency and overall operational efficiency.
Smart Images

Figure CN120021496B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to agricultural machinery, and more particularly to a corn stalk conveying, crushing and throwing device based on the principle of self-rotation disturbance soil removal. Background Technology
[0002] my country is a major corn producer, with a huge annual output of corn stalks. Corn stalks, as a high-quality biomass resource, are rich in cellulose, hemicellulose, and lignin, and can be used for high-value applications such as feed, papermaking, fertilizer, and fuel. However, existing stalk collection equipment suffers from problems such as high soil content, low efficiency, and high energy consumption, seriously affecting the resource utilization of stalks and soil erosion. Stalk balers are the core equipment for the efficient and clean collection and utilization of stalks, with stalk picking being the primary step in the collection process. Traditional stalk picking devices can be divided into two types based on the type of picker: spring-tooth type and hammer-claw type. Among them, the spring-tooth type, based on the adoption and imitation of advanced foreign products, is mainly used for picking up flexible stalks such as forage, rice, and wheat. It has poor adaptability to corn stalks that are large in size, rigid, and scattered, resulting in missed pick-up losses and low efficiency. Hammer-claw pickers efficiently collect corn stalks using high-speed rotating hammers and the resulting negative pressure adsorption effect. However, this process also causes a large amount of soil particles to be entrained in the stalks, resulting in high soil content in the stalk bales. This severely impacts subsequent high-value utilization, such as for feed or energy. Therefore, there is an urgent need to develop an efficient soil removal device to address the problem of high soil content caused by severe soil entrainment during hammer-claw picker operation. The goal is to reduce soil content at the source, decrease subsequent soil removal steps, improve overall machine efficiency, and reduce overall energy consumption. Summary of the Invention
[0003] The purpose of this invention is to provide a corn stalk conveying, crushing and throwing device based on the principle of self-rotation disturbance soil removal that can overcome the above-mentioned defects. This device utilizes the principle of stirring and separation to achieve efficient soil removal and high crushing quality of corn stalks, and can improve the reliability of operation.
[0004] The corn stalk conveying, crushing and throwing device based on the principle of self-rotation disturbance soil removal includes an auger soil removal device, a crushing and kneading device, a throwing device and a frame. The auger soil removal device is located on the right side inside the frame, the crushing and kneading device is located on the left side of the auger soil removal device, and the throwing device is located on the left side of the crushing and kneading device.
[0005] The auger soil removal device includes an auger right main shaft, an auger tube shaft, auger blades, a soil removal device, a flange bearing seat, a soil removal device right main shaft, a chain coupling, an auger left main shaft, and a soil removal device left main shaft. The inner side of the auger tube shaft is welded to the outer side of the auger right and auger left main shafts. The auger right and auger left main shafts are mounted on both sides of the frame via bearing seats. The flange bearing seats are fixed to the left side of the auger right main shaft and the right side of the auger left main shaft, respectively. The soil removal device right and soil removal device left main shafts are rotatably connected to the auger right and auger left main shafts via flange bearing seats, respectively. The soil removal device right and soil removal device left main shafts are connected via a chain coupling. The left end of the soil removal device left main shaft is fixedly installed to the frame. The auger blades are spirally welded to the auger tube shaft. The soil removal device is arranged at equal intervals on the auger tube shaft via the soil removal device right main shaft and welded arc plates.
[0006] Preferably, the soil removal device includes a first bevel gear, a second bevel gear, a bevel gear mounting bracket, a welded arc plate, a soil removal gear shaft, and soil removal teeth. The first bevel gear is fixedly mounted on the right main shaft of the soil removal device, the second bevel gear meshes with the first bevel gear, the bevel gear mounting bracket connects the first bevel gear and the second bevel gear, the welded arc plate is welded inside the auger shaft, the soil removal gear shaft is fixedly connected to the second bevel gear, and the soil removal teeth are fixed at equal intervals on the outside of the soil removal gear shaft.
[0007] Preferably, the crushing and kneading device includes a crushing blade assembly, a kneading blade assembly, and a fixed blade assembly. The crushing blade assembly and the kneading blade assembly are spirally distributed on the right side of the auger shaft. The fixed blade assembly is distributed in a ring at equal intervals inside the outer shell of the crushing and kneading device. The crushing blade assembly includes a crushing blade and a crushing blade seat, with the crushing blade fixed inside the crushing blade seat. The kneading blade assembly includes a kneading blade and a kneading blade seat, with the kneading blade fixed inside the kneading blade seat. The fixed blade assembly includes a fixed blade, a fixed blade support plate, and bolts. The fixed blades are welded at equal intervals to the concave surface of the fixed blade support plate, and the bolts are welded at equal intervals to the convex surface of the fixed blade support plate. The side wall of the outer shell of the crushing and kneading device is provided with mounting holes that match the bolts. The fixed blade assembly is installed inside the outer shell of the crushing and kneading device by bolts and nuts.
[0008] Preferably, the throwing device includes a throwing sleeve, a reinforcing rib, and a throwing bend plate. The throwing sleeve is fixed to the outermost right side of the auger shaft, the throwing bend plate is fixed at an equal angle to the outer side of the throwing sleeve, and the reinforcing rib is welded between the throwing bend plate and the throwing sleeve.
[0009] Preferably, the frame includes a bearing seat, a auger soil removal device housing, a crushing and kneading device housing, a throwing device housing, a support, and a welded housing. The bearing seat is fixed to the right side of the auger soil removal device housing, the crushing and kneading device housing is fixed to the left side of the auger soil removal device housing, the throwing device housing is fixed to the left side of the crushing and kneading device housing, the support is radially distributed at equal intervals on the left side of the throwing device housing and bolted to the welded housing, and the welded housing is welded to the left side of the throwing device housing along its edge.
[0010] Preferably, the soil removal devices are distributed at equal intervals along the axial direction of the auger tube, and the soil removal tooth shafts of two adjacent soil removal devices are spaced 120° apart.
[0011] Preferably, the bottom of the casing of the auger soil removal device in the frame has sieve holes.
[0012] The beneficial effects of this invention are:
[0013] This invention utilizes a bevel gear transmission device and the auger shaft for coordinated rotation. While the auger blades transport straw, the soil-removing teeth achieve a self-rotating soil-cleaning function. This structure not only significantly improves the cleaning rate of corn straw but also effectively reduces the wear of subsequent soil impurities on the crushing device, thereby extending its service life and improving crushing efficiency.
[0014] This invention employs an innovative structure combining crushing and kneading teeth. Through synergy with a fixed blade, it simultaneously cuts and kneads straw into filaments. This solution achieves the dual advantages of uniform crushing and efficient kneading, resulting in feed with excellent quality and high palatability.
[0015] This invention integrates the auger blades, soil removal device, and crushing and kneading device onto the same auger tube shaft. This integrated design not only achieves short-distance conveying and efficient soil removal, but also enables high-quality uniform crushing. By optimizing the work process, the efficiency of picking and crushing operations is significantly improved. Attached Figure Description
[0016] Figure 1 This is a partial cross-sectional view of the overall structure of the present invention;
[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;
[0018] Figure 3 This is a schematic diagram of the internal structure of the auger tube shaft of the present invention;
[0019] Figure 4 This is the present invention. Figure 3 Enlarged view at point I;
[0020] Figure 5 This is a schematic diagram of the soil removal device of the present invention;
[0021] Figure 6 This is a schematic diagram of the crushing teeth structure of the crushing and kneading device of the present invention;
[0022] Figure 7 This is a schematic diagram of the kneading teeth structure of the crushing and kneading device of the present invention;
[0023] Figure 8 This is a schematic diagram of the fixed blade assembly structure of the crushing and kneading device of the present invention;
[0024] Figure 9 This is a schematic diagram of the throwing device structure of the present invention;
[0025] Figure 10 This is a partial cross-sectional view of the frame structure of the present invention;
[0026] The attached diagrams are labeled as follows: 1. Auger soil removal device; 11. Right main shaft of auger; 12. Auger tube shaft; 13. Auger blade; 14. Soil removal device; 141. First bevel gear; 142. Second bevel gear; 143. Bevel gear mounting bracket; 144. Welded arc plate; 145. Soil removal gear shaft; 146. Soil removal gear; 15. Flange bearing seat; 16. Right main shaft of soil removal device; 17. Chain coupling; 18. Left main shaft of auger; 19. Left main shaft of soil removal device; 2. Crushing and kneading device; 21. Powder 211. Crushing blade assembly; 212. Crushing blade holder; 22. Kneading blade assembly; 221. Kneading blade; 222. Kneading blade holder; 23. Fixed blade assembly; 231. Fixed blade; 232. Fixed blade support plate; 233. Bolt; 3. Throwing device; 31. Throwing sleeve; 32. Reinforcing rib; 33. Throwing bending plate; 4. Frame; 41. Bearing seat; 42. Auger soil removal device housing; 43. Crushing and kneading device housing; 44. Throwing device housing; 441. Support; 442. Welded housing. Detailed Implementation
[0027] Please see Figures 1 to 10 As shown, the corn stalk conveying, crushing and throwing device based on the principle of self-rotation disturbance soil removal includes an auger soil removal device 1, a crushing and kneading device 2, a throwing device 3 and a frame 4. The auger soil removal device 1 is located on the right side inside the frame 4, the crushing and kneading device 2 is located on the left side of the auger soil removal device 1, and the throwing device 3 is located on the left side of the crushing and kneading device 2.
[0028] Specifically, the frame 4 is fixedly installed on the harvesting machinery. The auger soil removal device 1 is connected to the power output end of the harvesting machinery. The power output end of the harvesting machinery drives the auger soil removal device 1 to rotate. The auger soil removal device 1 drives the crushing and rubbing device 2 and the throwing device 3 to rotate synchronously. The corn stalks enter the inside of the frame 4 through the collection port on the right side of the frame 4. After being soiled by the auger soil removal device 1, they are transported to the crushing and rubbing device 2. After being crushed by the crushing and rubbing device 2, the crushed stalks are thrown out of the frame 4 by the throwing device 3, thus completing the corn stalk soil removal and crushing process.
[0029] Preferably, the auger soil removal device 1 includes an auger right main shaft 11, an auger tube shaft 12, auger blades 13, a soil removal device 14, a flange bearing seat 15, a soil removal device right main shaft 16, a chain coupling 17, an auger left main shaft 18, and a soil removal device left main shaft 19. The inner side of the auger tube shaft 12 is welded to the outer side of the auger right main shaft 11 and the auger left main shaft 18. The auger right main shaft 11 and the auger left main shaft 18 are mounted on both sides of the frame 4 via bearing seats 41. The flange bearing seats 15 are respectively fixed to the left side of the auger right main shaft 11 and the auger left main shaft 19. On the right side of the left main shaft 18 of the auger, the right main shaft 16 and the left main shaft 19 of the soil removal device are rotatably connected to the right main shaft 11 and the left main shaft 18 of the auger respectively through the flange bearing seat 15. The right main shaft 16 and the left main shaft 19 of the soil removal device are connected through the chain coupling 17. The left end of the left main shaft 19 of the soil removal device is fixedly installed to the frame 4. The auger blades 13 are spirally welded on the auger tube shaft 12. The soil removal device 14 is set at equal intervals on the auger tube shaft 12 through the right main shaft 16 of the soil removal device and the welded arc plate 144.
[0030] Preferably, the soil removal device 14 includes a first bevel gear 141, a second bevel gear 142, a bevel gear mounting bracket 143, a welded arc plate 144, a soil removal gear shaft 145, and soil removal teeth 146. The first bevel gear 141 is fixedly mounted on the right main shaft 16 of the soil removal device, the second bevel gear 142 meshes with the first bevel gear 141, the bevel gear mounting bracket 143 connects the first bevel gear 141 and the second bevel gear 142, the welded arc plate 144 is welded inside the auger tube shaft 12, the soil removal gear shaft 145 is fixedly connected to the second bevel gear 142, and the soil removal teeth 146 are fixed at equal intervals on the outside of the soil removal gear shaft 145.
[0031] Specifically, when the auger soil removal device 1 rotates, the auger tube shaft 12 drives the soil removal teeth 146 to revolve. At the same time, since the left main shaft 19 of the soil removal device is fixedly installed with the frame 4, the first bevel gear 141 on the right main shaft 16 of the soil removal device is fixed. When the auger tube shaft 12 rotates, it drives the second bevel gear 142 to rotate through the soil removal teeth 146 and the soil removal tooth shaft 145, which in turn drives the soil removal teeth 146 to rotate.
[0032] Preferably, the crushing and kneading device 2 includes a crushing blade assembly 21, a kneading blade assembly 22, and a fixed blade assembly 23. The crushing blade assembly 21 and the kneading blade assembly 22 are spirally distributed on the right side of the auger shaft 12, and the fixed blade assembly 23 is annularly and equally spaced inside the outer shell 43 of the crushing and kneading device. The crushing blade assembly 21 includes a crushing blade 211 and a crushing blade holder 212. The crushing blade 211 is fixed inside the crushing blade holder 212. The kneading blade assembly 22 includes a kneading blade 221 and a kneading blade. The base 222 and the kneading blade 221 are fixed inside the kneading blade base 222; the fixed blade assembly 23 includes a fixed blade 231, a fixed blade support plate 232 and bolts 233. The fixed blades 231 are welded at equal intervals on the concave surface of the fixed blade support plate 232, and the bolts 233 are welded at equal intervals on the convex surface of the fixed blade support plate 232. The side wall of the crushing and kneading device housing 43 is provided with mounting holes that match the bolts 233. The fixed blade assembly 23 is installed inside the crushing and kneading device housing 43 by the cooperation of the bolts 233 and nuts.
[0033] Preferably, the throwing device 3 includes a throwing sleeve 31, a reinforcing rib 32, and a throwing bending plate 33. The throwing sleeve 31 is fixed to the outermost right side of the auger shaft 12, and the throwing bending plate 33 is fixed at equal angles to the outer side of the throwing sleeve 31. The reinforcing rib 32 is welded between the throwing bending plate 33 and the throwing sleeve 31.
[0034] Preferably, the frame 4 includes a bearing seat 41, a screw conveyor housing 42, a crushing and kneading device housing 43, a throwing device housing 44, a support 441, and a welded housing 442. The bearing seat 41 is fixed to the right side of the screw conveyor housing 42, the crushing and kneading device housing 43 is fixed to the left side of the screw conveyor housing 42, the throwing device housing 44 is fixed to the left side of the crushing and kneading device housing 43, the support 441 is radially distributed at equal intervals on the left side of the throwing device housing 44 and bolted to the welded housing 442, and the welded housing 442 is welded to the left side of the throwing device housing 44 along its edge.
[0035] Preferably, the soil removal devices 14 are distributed at equal intervals along the axial direction of the auger tube shaft 12, and the soil removal tooth shafts 145 of two adjacent soil removal devices 14 are spaced 120° apart.
[0036] Preferably, the bottom of the outer shell 42 of the auger soil removal device in the frame 4 has a screen hole;
[0037] Specifically, the bottom of the outer shell 42 of the auger soil removal device has a screen hole to facilitate the timely discharge of the soil contained in the straw after the soil removal teeth 146 separate it from the device.
[0038] The working process of this invention:
[0039] When crushing corn stalks, the power output of the harvesting machinery drives the auger soil removal device 1 to rotate. The corn stalk-soil mixture is conveyed axially towards the throwing device 3 by the auger blades 13. During the rotation of the auger soil removal device 1, the welded arc plate 144 is welded to the auger tube shaft 12. Therefore, the soil removal device 14 rotates together with the auger tube shaft 12. The auger tube shaft 12 drives the soil removal teeth 146 to achieve a revolution motion. At the same time, since the left end of the left main shaft 19 of the soil removal device is fixedly installed with the frame 4, the first bevel gear 141 on the right main shaft 16 of the soil removal device remains stationary, while the auger tube shaft 12 rotates. The second bevel gear 142 on the soil removal gear shaft 145 rotates, which in turn drives the soil removal gear 146 to rotate. Under the action of rotation and revolution, the soil removal gear 146 causes the straw-soil mixture to turn over and shake, thereby separating the soil from the straw. The straw falls through the screen hole at the bottom of the auger soil removal device shell 42. The straw after the soil separation is continued to be conveyed to the crushing and kneading device 2 under the action of the auger blades. Under the coordinated action of the crushing blade assembly 21, the kneading blade assembly 22 and the fixed blade assembly 23, it is chopped and kneaded into filamentous material, and finally the throwing operation is completed by the throwing device 3.
[0040] It should be noted that although the present invention has been described through the above embodiments, the content is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made by those skilled in the art within the scope of the present invention should be included within the protection scope of the present invention.
Claims
1. A corn stalk conveying, crushing, and throwing device based on the principle of self-rotation disturbance soil removal, characterized in that: It includes a auger soil removal device (1), a crushing and kneading device (2), a throwing device (3) and a frame (4). The auger soil removal device (1) is located inside the frame (4) on the right side, the crushing and kneading device (2) is located on the left side of the auger soil removal device (1), and the throwing device (3) is located on the left side of the crushing and kneading device (2). The auger soil removal device (1) includes an auger right main shaft (11), an auger tube shaft (12), auger blades (13), a soil removal device (14), a flange bearing seat (15), a soil removal device right main shaft (16), a chain coupling (17), an auger left main shaft (18), and a soil removal device left main shaft (19). The inner side of the auger tube shaft (12) is welded to the outer side of the auger right main shaft (11) and the auger left main shaft (18). The auger right main shaft (11) and the auger left main shaft (18) are mounted on both sides of the frame (4) through bearing seats (41). The flange bearing seats (15) are fixed on the left side of the auger right main shaft (11) and the auger left main shaft (19). On the right side of the left main shaft (18), the right main shaft (16) and the left main shaft (19) of the soil removal device are rotatably connected to the right main shaft (11) and the left main shaft (18) of the auger respectively through the flange bearing seat (15). The right main shaft (16) and the left main shaft (19) of the soil removal device are connected through the chain coupling (17). The left end of the left main shaft (19) of the soil removal device is fixedly installed on the frame (4). The auger blades (13) are spirally welded on the auger tube shaft (12). The soil removal device (14) is set at equal intervals on the auger tube shaft (12) through the right main shaft (16) of the soil removal device and the welded arc plate (144). The soil removal device (14) includes a first bevel gear (141), a second bevel gear (142), a bevel gear mounting bracket (143), a welded arc plate (144), a soil removal gear shaft (145), and soil removal teeth (146). The first bevel gear (141) is fixedly mounted on the right main shaft (16) of the soil removal device. The second bevel gear (142) meshes with the first bevel gear (141). The bevel gear mounting bracket (143) connects the first bevel gear (141) and the second bevel gear (142). The welded arc plate (144) is welded inside the auger tube shaft (12). The soil removal gear shaft (145) is fixedly connected to the second bevel gear (142). The soil removal teeth (146) are fixed at equal intervals on the outside of the soil removal gear shaft (145). The crushing and kneading device (2) includes a crushing blade assembly (21), a kneading blade assembly (22), and a fixed blade assembly (23). The crushing blade assembly (21) and the kneading blade assembly (22) are spirally distributed on the right side of the auger tube shaft (12). The fixed blade assembly (23) is annularly distributed at equal intervals on the inner side of the crushing and kneading device housing (43). The crushing blade assembly (21) includes a crushing blade (211) and a crushing blade holder (212). The crushing blade (211) is fixed inside the crushing blade holder (212). The kneading blade assembly (22) includes a kneading blade (221) and a kneading blade holder (222). 222), the kneading blade (221) is fixed inside the kneading blade holder (222); the fixed blade assembly (23) includes a fixed blade (231), a fixed blade support plate (232) and bolts (233). The fixed blades (231) are welded at equal intervals on the concave surface of the fixed blade support plate (232), and the bolts (233) are welded at equal intervals on the convex surface of the fixed blade support plate (232). The side wall of the crushing and kneading device housing (43) is provided with mounting holes that match the bolts (233). The fixed blade assembly (23) is installed inside the crushing and kneading device housing (43) by the bolts (233) and nuts.
2. The corn stalk conveying, crushing, and throwing device based on the principle of self-rotation disturbance soil removal according to claim 1, characterized in that: The throwing device (3) includes a throwing sleeve (31), a reinforcing rib (32) and a throwing bending plate (33). The throwing sleeve (31) is fixed on the outermost right side of the auger tube shaft (12). The throwing bending plate (33) is fixed at an equal angle on the outer side of the throwing sleeve (31). The reinforcing rib (32) is welded between the throwing bending plate (33) and the throwing sleeve (31).
3. The corn stalk conveying, crushing, and throwing device based on the principle of self-rotation disturbance soil removal according to claim 2, characterized in that: The frame (4) includes a bearing seat (41), a auger soil removal device housing (42), a crushing and kneading device housing (43), a throwing device housing (44), a support (441), and a welded housing (442). The bearing seat (41) is fixed on the right side of the auger soil removal device housing (42), the crushing and kneading device housing (43) is fixed on the left side of the auger soil removal device housing (42), the throwing device housing (44) is fixed on the left side of the crushing and kneading device housing (43), the support (441) is radially distributed at equal intervals on the left side of the throwing device housing (44) and bolted to the welded housing (442). The welded housing (442) is welded along the edge to the left side of the throwing device housing (44).
4. The corn stalk conveying, crushing, and throwing device based on the principle of self-rotation disturbance soil removal according to claim 3, characterized in that: The soil removal devices (14) are distributed at equal intervals along the axial direction of the auger tube shaft (12), and the soil removal tooth shafts (145) of two adjacent soil removal devices (14) are spaced 120° apart.
5. The corn stalk conveying, crushing, and throwing device based on the principle of self-rotation disturbance soil removal according to claim 4, characterized in that: The bottom of the casing (42) of the auger soil removal device in the frame (4) has a screen hole.
Citation Information
Patent Citations
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