Energy-saving rice stalk and chaff crushing combined machine

Abstract

This invention relates to the field of rice straw crushing technology, and in particular to an energy-saving rice straw crushing combined machine. This energy-saving rice straw crushing combined machine includes a frame mounting assembly, a primary crushing assembly, a screening assembly, and a hard stalk crushing assembly. This invention can automatically crush and cut rice straw, and the cutting process provides compression and fixation to prevent rice straw from flying out during subsequent primary crushing by rotating rollers. Simultaneously, it can intelligently sort and crush hard rice stalks, effectively preventing blade jamming, reducing energy and raw material consumption, and automatically sorting rice stalk particles, re-crushing unqualified rice stalk particles, and collecting them again.

Description

Technical Field

[0001] This invention relates to the field of rice straw crushing technology, and in particular to an energy-saving rice straw crushing combined machine. Background Technology

[0002] The main uses of rice straw are livestock feed, domestic fuel, or compost. After rice straw is harvested, some rice straw needs to be crushed to obtain finer straw and spread in the field so that the rice straw can decompose and provide nutrients for the next season's planting.

[0003] Rice straw crushing requires the use of a crusher to crush rice straw and other stalks. Traditional crushers use a blade assembly to directly grind the straw. During the crushing process, the blades often get stuck due to the hardness of the rice stalks. The straws need to be removed and manually crushed. Repeated blade jamming not only reduces work efficiency and increases energy and raw material consumption, but also poses certain safety hazards to the operators. Summary of the Invention

[0004] Therefore, it is necessary to provide an energy-saving rice straw crushing and pulverizing machine to solve at least one of the technical problems in the background art.

[0005] An energy-saving rice straw crushing combined machine includes a frame mounting assembly, a primary crushing assembly, a screening assembly, and a hard stalk crushing assembly. The frame mounting assembly includes a feeding platform, a base frame, a screening mounting frame, a crushing drive mounting box, and a hard stalk crushing shell. The bottoms of the feeding platform and the base frame are both mounted on the installation ground, with one end of the base frame connected to the inner center of the feeding platform. The bottom of the screening mounting frame is mounted on the top of the base frame near the feeding platform. Lifting mounting columns protrude from the four corners of the bottom surface of the crushing drive mounting box, with the bottoms of all four lifting mounting columns mounted on the installation ground, so that the crushing drive mounting box is positioned directly above the screening mounting frame. The crushing drive mounting box contains... It has a blower and a primary crushing drive motor. A preset groove is recessed on one side of the bottom of the crushing drive mounting box, which is connected to the internal cavity of the crushing drive mounting box. The bottom of the hard crushing shell is installed on the base frame away from the feeding table, and the hard crushing shell is hollow to form a hollow cavity. A first material drop groove is recessed on the bottom surface of the hollow cavity near the feeding table, and a hard material drop groove is recessed on the top surface of the hollow cavity near the feeding table. The bottom surface of the primary crushing component is installed on the top surface of the screening mounting frame, and the top surface of the primary crushing component near the feeding table is connected to the middle of the bottom surface of the crushing drive mounting box. The screening component is installed in the screening mounting frame, and the hard stalk crushing component is installed in the hollow cavity.

[0006] As a further improvement of the present invention, the primary crushing assembly includes a primary crushing mounting shell, two extrusion drive wheel sets, a primary crushing roller cutter, an adjusting profile plate, and a hard stalk drive element. The bottom surface of the primary crushing mounting shell is mounted on the top surface of the screening mounting frame. The primary crushing mounting shell is hollow inside to form a primary crushing cavity. A second material discharge groove is recessed in the middle of the bottom surface of the primary crushing cavity, and a third material discharge groove is recessed at the end of the bottom surface of the primary crushing cavity away from the feeding platform. The two extrusion drive wheel sets are rotatably mounted at the end of the primary crushing cavity adjacent to the feeding platform. The primary crushing roller cutter is rotatably mounted in the middle of the primary crushing cavity. The adjusting profile plate is mounted in the middle of the primary crushing cavity and located below the primary crushing roller cutter. The hard stalk drive element is mounted at the other end of the primary crushing cavity.

[0007] As a further improvement of the present invention, the top surface of the primary crushing housing is recessed at the end away from the feeding platform with an inclined surface. A ventilation groove is recessed in the middle of the inclined surface, and an air curtain nozzle is installed inside the ventilation groove. The air curtain nozzle is connected to a blower via a pipe. A feeding groove is recessed in the middle of the end of the primary crushing chamber near the feeding platform. Two first rotating holes and two second rotating holes are recessed along the length of the middle of the side wall of the primary crushing chamber near the feeding platform, and the distance between the two first rotating holes is greater than the distance between the two second rotating holes. A docking groove is recessed on one side of the middle of the top surface of the primary crushing chamber, and the docking groove is opposite to a preset groove. The side wall of the primary crushing chamber is recessed at the end away from the feeding platform with an inclined surface. Two third rotating holes and a fourth rotating hole are recessed at one end of the feeding platform. The two third rotating holes and the fourth rotating hole are arranged in an equilateral triangle, and the fourth rotating hole is located below the two third rotating holes. The side wall of the primary crushing chamber is recessed with a first strip-shaped chute at the end away from the feeding platform. The first strip-shaped chute is located between the fourth rotating hole and the third rotating hole away from the feeding platform. The side wall of the primary crushing chamber is recessed with a second strip-shaped chute and a third strip-shaped chute at the end away from the feeding platform. The second strip-shaped chute and the third strip-shaped chute are both located at the end of the first strip-shaped chute adjacent to the feeding platform, and the second strip-shaped chute and the third strip-shaped chute are staggered.

[0008] As a further improvement of the present invention, each extrusion drive roller assembly includes a first extrusion drive roller and a second extrusion drive roller. The first extrusion drive roller is rotatably installed in a first rotating hole, and the second extrusion drive roller is rotatably installed in a second rotating hole. A first drive chain is sleeved between one end of the first extrusion drive roller and one end of the second extrusion drive roller. A drive gear is provided at one end of the two second rotating holes away from the first drive chain. The two drive gears are meshed and connected. The two ends of the primary crushing roller are rotatably installed in the middle of both sides of the primary crushing chamber. A drive wheel is provided at one end of the primary crushing roller. A second rotating chain is provided between the drive wheel and the output shaft of the primary crushing drive motor. A first drive belt is provided between the other end of the primary crushing roller and one end of the second extrusion drive roller.

[0009] As a further improvement of the present invention, the adjusting irregular plate includes a guide straight plate, an arc-shaped screen, an arc-shaped elastic part, and an arc-shaped sliding part. The guide straight plate is installed on both sides of the middle of the primary crushing chamber, and the guide straight plate is located between the primary crushing roller and the second extrusion transmission roller. One end of the arc-shaped screen is fixedly installed on the middle of the bottom surface of the guide straight plate. One end of the arc-shaped elastic part is installed on the other end of the arc-shaped screen. The other end of the arc-shaped elastic part is provided with a first connecting sliding shaft, and the first connecting sliding shaft is slidably installed in a third strip-shaped groove. One end of the arc-shaped sliding part is rotatably installed in the middle of the first connecting sliding shaft by a torsion spring. The other end of the arc-shaped sliding part is provided with a second connecting sliding shaft, and the second connecting sliding shaft is slidably installed in a second strip-shaped groove.

[0010] As a further improvement of the present invention, the hard stalk transmission element includes a first hard stalk roller, a second hard stalk roller, a first tensioning column, and a second tensioning column. The first hard stalk roller is rotatably installed in a third rotating hole away from the feeding table. The second hard stalk roller is slidably installed in a first strip-shaped groove. A rotating cylinder is rotatably provided at the end of the second hard stalk roller. A return spring is provided between the rotating cylinder and the end of the first strip-shaped groove away from the feeding table. A connecting rotating rod is provided between the second hard stalk roller and the second connecting sliding shaft. The first tensioning column is installed in a third rotating hole adjacent to the feeding table. The second tensioning column is installed in a fourth rotating hole. An elastic transmission belt is sleeved on one end of the first hard stalk roller, the second hard stalk roller, the first tensioning column, and the second tensioning column to realize the transmission connection. A third rotating belt is provided between the second hard stalk roller and the primary crushing roller.

[0011] As a further improvement of the present invention, the screening assembly includes a vibrating screen, a hard stalk discharge pipe, a first funnel, a first sorting pipe, a second sorting pipe, and a second funnel. The vibrating screen is installed at the top of the screening mounting frame near one end of the feeding platform. The hard stalk discharge pipe is installed at the other end of the top of the screening mounting frame, and the internal cavity of the hard stalk discharge pipe is connected to the vibrating screen. The top of the hard stalk discharge pipe is installed in a third discharge trough, and the hard stalk discharge pipe is located directly above the hard discharge trough. The first funnel is installed in the middle of the screening mounting frame. The top of the first sorting pipe is installed at the bottom of the first funnel near one end of the feeding platform. The second sorting pipe is installed at the top of the first funnel at the other end of the bottom. The second funnel is installed in the middle of the base frame. The end of the second funnel away from the feeding platform is located directly below the first discharge trough, and the bottom end of the second sorting pipe is located in the other end of the second funnel.

[0012] As a further improvement of the present invention, the hard stalk crushing assembly includes a second drive motor, a transmission element and an extrusion crushing element. The second drive motor is installed at one end of the hollow cavity away from the feeding table, the transmission element is installed in the middle of the hollow cavity, and the extrusion crushing element is installed at the other end of the hollow cavity.

[0013] As a further improvement of the present invention, the transmission element includes a rotating mounting platform, a rotating wheel, a first transmission rotating plate, a transmission tensioning column, two transmission rotating rods, and a second rotating plate. The top of the rotating mounting platform is mounted on the top of the hollow cavity at a corner away from the feeding table. A rotating shaft is provided in the middle of the rotating wheel. A split column is protruding from the top of both ends of the rotating shaft. The two ends of the rotating shaft are respectively mounted on both sides of the bottom of the rotating mounting platform near the feeding table. The first transmission rotating plate is rotatably mounted on the bottom of the hollow cavity and located directly below the rotating mounting platform at the end away from the feeding table. A transmission connecting rotating shaft is provided at the other end of the first transmission rotating plate. The transmission tensioning column is mounted in the middle of the hollow cavity and located directly below the rotating mounting platform. A second rotating belt is sleeved on the transmission tensioning column, the rotating wheel, and the output shaft of the second drive motor to achieve transmission connection. The top ends of the two transmission rotating rods are rotatably mounted on the two split columns, and the bottom ends of the two transmission rotating rods are rotatably mounted on both ends of the transmission connecting rotating shaft. The second rotating plate is rotatably mounted on the transmission connecting rotating shaft at the end away from the feeding table.

[0014] As a further improvement of the present invention, the extrusion crushing element includes a rotating crushing tooth and a vibrating crushing triangular plate. The top of the rotating crushing tooth is rotatably mounted on the top of the hollow cavity near the feeding platform. The bottom of the rotating crushing tooth is rotatably connected to the end of the second rotating plate near the feeding platform. The vibrating crushing triangular plate is mounted on the end of the hollow cavity near the feeding platform. Multiple crushing teeth are recessed along the height direction at the end of the vibrating crushing triangular plate away from the feeding platform. A crushing gap is provided between the vibrating crushing triangular plate and the rotating crushing tooth, and the crushing gap is located directly below the hard material discharge trough.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. This invention achieves automated crushing and cutting of rice straw through a frame mounting assembly, a primary crushing assembly, and a screening assembly. During the cutting process, two extrusion drive rollers compress and fix the rice straw, preventing it from flying out during the subsequent primary crushing rollers. Simultaneously, a fan delivers dry airflow into the ventilation duct, forming a drying air curtain, effectively preventing rice straw particles from being thrown out during the primary crushing rollers' rotation, thus improving crushing efficiency. Furthermore, the inclined drying air curtain blows towards the arc-shaped screen, accelerating the falling and screening speed of rice straw particles, further increasing production efficiency.

[0017] 2. This invention intelligently completes the sorting and crushing of hard rice stalks through a frame mounting assembly, a primary crushing assembly, a screening assembly, and a hard stalk crushing assembly. This effectively prevents blade jamming, reduces energy and raw material consumption, and automatically sorts rice stalk particles. Qualified rice stalk particles are collected into corresponding funnels, while larger rice stalk particles are screened by a vibrating screen and fall into the hollow cavity through a hard stalk discharge pipe. They are then further crushed by the hard stalk crushing assembly and subsequently fall into a second funnel for collection, saving raw materials and increasing raw material utilization. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the present invention.

[0019] Figure 2 This is a cross-sectional view of an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the internal structure of the primary crushing component in one embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the internal structure of the primary crushing component in another embodiment of the present invention.

[0022] Figure 5 This is a three-dimensional schematic diagram of a screening component in one embodiment of the present invention.

[0023] Figure 6 This is a three-dimensional schematic diagram of a hard stalk crushing component according to an embodiment of the present invention.

[0024] Figure 7 This is a three-dimensional schematic diagram of a hard stalk crushing component according to another embodiment of the present invention.

[0025] Figure 8 This is a three-dimensional schematic diagram of a rotating wheel according to an embodiment of the present invention.

[0026] Figure 9 A three-dimensional schematic diagram of a combine harvester equipped with a primary crushing component.

[0027] In the picture:

[0028] 10. Frame mounting assembly; 11. Feeding platform; 12. Base frame; 13. Screening mounting frame; 14. Crushing drive mounting box; 141. Lifting mounting column; 142. Preset trough; 15. Hard crushing shell; 151. Hollow cavity; 152. First discharge chute; 153. Hard discharge chute; 20. Primary crushing assembly; 21. Primary crushing mounting shell; 211. Inclined surface; 212. Ventilation slot; 213. Air curtain nozzle; 26. Primary crushing chamber; 261. Second discharge chute; 262. Third discharge chute; 263. Feed chute; 264. 265. First rotating hole; 266. Second rotating hole; 267. Third rotating hole; 268. Fourth rotating hole; 269. First strip groove; 260. Second strip groove; 271. Connecting groove; 22. Extrusion drive wheel assembly; 221. First extrusion drive roller; 222. Second extrusion drive roller; 223. First drive chain; 224. Drive gear; 23. Primary crushing roller cutter; 231. Drive wheel; 232. First drive belt; 24. Adjusting shaped plate; 241. Guide straight plate section; 242. Arc screen 243. Mesh section; 244. Arc-shaped elastic section; 245. Arc-shaped sliding section; 246. First connecting sliding shaft; 247. Second connecting sliding shaft; 25. Hard stalk transmission element; 251. First hard stalk roller; 252. Second hard stalk roller; 253. First tensioning column; 254. Second tensioning column; 255. Connecting rotating rod; 257. Elastic transmission belt; 258. Third rotating belt; 30. Screening assembly; 31. Vibrating screen; 32. First funnel; 33. First sorting pipe; 34. Second sorting pipe; 35. Second funnel; 36. 40. Hard stalk discharge pipe; 41. Hard stalk crushing assembly; 42. Second drive motor; 43. Transmission element; 44. Rotating mounting platform; 45. Rotating wheel; 46. First transmission rotating plate; 47. Two transmission rotating rods; 48. Second rotating plate; 49. Transmission tensioning column; 40. Rotating shaft; 41. Centering column; 422. Transmission connecting shaft; 43. Second rotating belt; 44. Extrusion crushing element; 45. Rotating crushing tooth; 46. Vibrating crushing triangular plate; 47. Crushing tooth; 48. Crushing gap. Detailed Implementation

[0029] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0030] In the description of this invention, it should be noted that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] Please see Figures 1 to 8 An energy-saving rice straw crushing combined machine includes a frame mounting assembly 10, a primary crushing assembly 20, a screening assembly 30, and a hard stalk crushing assembly 40. The frame mounting assembly 10 includes a feeding platform 11, a base frame 12, a screening mounting frame 13, a crushing drive mounting box 14, and a hard stalk crushing shell 15. The bottoms of the feeding platform 11 and the base frame 12 are both mounted on the installation ground, with one end of the base frame 12 connected to the middle of the inner side of the feeding platform 11. The bottom of the screening mounting frame 13 is mounted on the top of the base frame 12 near the end of the feeding platform 11. Lifting mounting columns 141 protrude from the four corners of the bottom surface of the crushing drive mounting box 14, with the bottoms of all four lifting mounting columns 141 mounted on the installation ground, so that the crushing drive mounting box 14 is positioned directly above the screening mounting frame 13. A fan and a... The primary crushing drive motor has a pre-set groove 142 recessed on one side of the bottom of the crushing drive mounting box 14, which is connected to the internal cavity of the crushing drive mounting box 14. The bottom of the hard crushing shell 15 is installed on the base frame 12 at the end away from the feeding table 11, and the hard crushing shell 15 has a hollow cavity 151 inside. The bottom surface of the hollow cavity 151 is recessed at the end near the feeding table 11, and the top surface of the hollow cavity 151 is recessed at the end near the feeding table 11, which has a hard material discharge groove 153. The bottom surface of the primary crushing component 20 is installed on the top surface of the screening mounting frame 13, and the top surface of the primary crushing component 20 is connected to the middle of the bottom surface of the crushing drive mounting box 14 at the end near the feeding table 11. The screening component 30 is installed in the screening mounting frame 13, and the hard stalk crushing component 40 is installed in the hollow cavity 151.

[0033] The primary crushing assembly 20 includes a primary crushing mounting shell 21, two extrusion drive wheel sets 22, a primary crushing roller cutter 23, an adjusting profile plate 24, and a hard stalk drive element 25. The bottom surface of the primary crushing mounting shell 21 is mounted on the top surface of the screening mounting frame 13. The primary crushing mounting shell 21 is hollow inside to form a primary crushing cavity 26. A second material discharge groove 261 is recessed in the middle of the bottom surface of the primary crushing cavity 26, and a third material discharge groove 262 is recessed at the end of the bottom surface of the primary crushing cavity 26 away from the feeding platform 11. The two extrusion drive wheel sets 22 are rotatably mounted on the end of the primary crushing cavity 26 adjacent to the feeding platform 11. The primary crushing roller cutter 23 is rotatably mounted in the middle of the primary crushing cavity 26. The adjusting profile plate 24 is mounted in the middle of the primary crushing cavity 26 and located below the primary crushing roller cutter 23. The hard stalk drive element 25 is mounted on the other end of the primary crushing cavity 26.

[0034] The top surface of the primary crushing housing 21, away from the feeding platform 11, has an inclined surface 211 recessed at one end. A ventilation groove 212 is recessed in the middle of the inclined surface 211, and an air curtain nozzle 213 is installed inside the ventilation groove 212. The air curtain nozzle 213 is connected to a blower via a pipe. The primary crushing chamber 26, adjacent to the feeding platform 11, has a feeding groove 263 recessed in the middle of one end. The side wall of the primary crushing chamber 26, adjacent to the feeding platform 11, has two first rotating holes 264 and two second rotating holes 265 recessed along its length, with the distance between the two first rotating holes 264 being greater than the distance between the two second rotating holes 265. A docking groove 271 is recessed on one side of the top surface of the primary crushing chamber 26, and the docking groove 271 is opposite to the preset groove 142. The side wall of the primary crushing chamber 26, away from the feeding platform 11, has a recessed... Two third rotating holes 266 and a fourth rotating hole 267 are arranged in an equilateral triangle, with the fourth rotating hole 267 located below the two third rotating holes 266. The side wall of the primary crushing chamber 26 is inclined downward at the end away from the feeding table 11 and has a first strip-shaped groove 268 recessed therein. The first strip-shaped groove 268 is located between the fourth rotating hole 267 and the third rotating hole 266 away from the feeding table 11. The side wall of the primary crushing chamber 26 is also recessed at the end away from the feeding table 11 and has a second strip-shaped groove 269 and a third strip-shaped groove 260 recessed therein. The second strip-shaped groove 269 and the third strip-shaped groove 260 are both located at the end of the first strip-shaped groove 268 adjacent to the feeding table 11, and the second strip-shaped groove 269 and the third strip-shaped groove 260 are staggered.

[0035] Each extrusion drive roller assembly 22 includes a first extrusion drive roller 221 and a second extrusion drive roller 222. The first extrusion drive roller 221 is rotatably mounted in a first rotation hole 264, and the second extrusion drive roller 222 is rotatably mounted in a second rotation hole 265. A first drive chain 223 is sleeved between one end of the first extrusion drive roller 221 and one end of the second extrusion drive roller 222. A drive gear 224 is provided at one end of the two second rotation holes 265 away from the first drive chain 223. The two drive gears 224 are meshed and connected. The two ends of the primary crushing roller cutter 23 are rotatably mounted on the middle of both sides of the primary crushing chamber 26. A drive wheel 231 is provided at one end of the primary crushing roller cutter 23. A second rotation chain is provided between the drive wheel 231 and the output shaft of the primary crushing drive motor. A first drive belt 232 is provided between the other end of the primary crushing roller cutter 23 and one end of the second extrusion drive roller 222.

[0036] The adjusting irregular plate 24 includes a guide straight plate 241, an arc-shaped screen 242, an arc-shaped elastic part 243, and an arc-shaped sliding part 244. The guide straight plate 241 is installed on both sides of the middle of the primary crushing chamber 26, and the guide straight plate 241 is located between the primary crushing roller 23 and the second extrusion transmission roller 222. One end of the arc-shaped screen 242 is fixedly installed on the middle of the bottom surface of the guide straight plate 241. One end of the arc-shaped elastic part 243 is installed on the other end of the arc-shaped screen 242. The other end of the arc-shaped elastic part 243 is provided with a first connecting sliding shaft 245, and the first connecting sliding shaft 245 is slidably installed in the third strip groove 260. One end of the arc-shaped sliding part 244 is rotatably installed in the middle of the first connecting sliding shaft 245 by a torsion spring. The other end of the arc-shaped sliding part 244 is provided with a second connecting sliding shaft 246, and the second connecting sliding shaft 246 is slidably installed in the second strip groove 269.

[0037] The rigid stalk transmission element 25 includes a first rigid stalk roller 251, a second rigid stalk roller 252, a first tensioning column 253, and a second tensioning column 254. The first rigid stalk roller 251 is rotatably mounted in a third rotating hole 266 away from the feeding table 11. The second rigid stalk roller 252 is slidably mounted in a first strip groove 268. A rotating cylinder is rotatably mounted at the end of the second rigid stalk roller 252. A return spring is provided between the rotating cylinder and the end of the first strip groove 268 away from the feeding table 11. A connecting rod 255 is provided between 52 and the second connecting sliding shaft 246. The first tensioning column 253 is installed in the third rotating hole 266 adjacent to the feeding table 11. The second tensioning column 254 is installed in the fourth rotating hole 267. One end of the first hard stalk roller 251, the second hard stalk roller 252, the first tensioning column 253 and the second tensioning column 254 is fitted with an elastic transmission belt 257 to realize the transmission connection. A third rotating belt 258 is provided between the second hard stalk roller 252 and the primary crushing roller 23.

[0038] The screening assembly 30 includes a vibrating screen 31, a hard stalk discharge pipe 36, a first funnel 32, a first sorting pipe 33, a second sorting pipe 34, and a second funnel 35. The vibrating screen 31 is installed on the top of the screening mounting frame 13 near one end of the feeding platform 11. The hard stalk discharge pipe 36 is installed on the other end of the top of the screening mounting frame 13, and the internal cavity of the hard stalk discharge pipe 36 is connected to the vibrating screen 31. The top of the hard stalk discharge pipe 36 is installed in the third discharge trough 262, and the hard stalks fall into the discharge trough. The material pipe 36 is located directly above the rigid material chute 153. The first funnel 32 is installed in the middle of the screening mounting frame 13. The top of the first sorting pipe 33 is installed at the bottom of the first funnel 32 near the end of the feeding platform 11. The second sorting pipe 34 is installed at the top at the other end of the bottom of the first funnel 32. The second funnel 35 is installed in the middle of the base frame 12. The end of the second funnel 35 away from the feeding platform 11 is located directly below the first material chute 152, and the bottom end of the second sorting pipe 34 is located in the other end of the second funnel 35.

[0039] The hard stalk crushing assembly 40 includes a second drive motor 41, a transmission element 42, and an extrusion crushing element 43. The second drive motor 41 is installed at one end of the hollow cavity 151 away from the feeding table 11, the transmission element 42 is installed in the middle of the hollow cavity 151, and the extrusion crushing element 43 is installed at the other end of the hollow cavity 151.

[0040] The transmission element 42 includes a rotating mounting platform 421, a rotating wheel 422, a first transmission rotating plate 423, a transmission tensioning column 426, two transmission rotating rods 424, and a second rotating plate 425. The rotating mounting platform 421 is mounted on the top of the hollow cavity 151 at the corner furthest from the feeding table 11. A rotating shaft 427 is provided in the middle of the rotating wheel 422. A split column 428 protrudes from the top of both ends of the rotating shaft 427. The two ends of the rotating shaft 427 are respectively mounted on both sides of the bottom of the rotating mounting platform 421 near the feeding table 11. The first transmission rotating plate 423 is rotatably mounted on the bottom of the hollow cavity 151 at the end furthest from the feeding table 11 and is located at the rotating mounting platform 425. Directly below the mounting platform 421, the other end of the first transmission rotating plate 423 is provided with a transmission connecting shaft 429. The transmission tensioning column 426 is installed in the middle of the hollow cavity 151 and located directly below the rotating mounting platform 421. The transmission tensioning column 426, the rotating wheel 422 and the output shaft of the second drive motor 41 are fitted with a second rotating belt 420 to realize the transmission connection. The top ends of the two transmission rotating rods 424 are respectively rotatably installed on the two split columns 428, and the bottom ends of the two transmission rotating rods 424 are respectively rotatably installed on both ends of the transmission connecting shaft 429. The end of the second rotating plate 425 away from the feeding table 11 is rotatably installed on the transmission connecting shaft 429.

[0041] The extrusion crushing element 43 includes a rotating crushing tooth 431 and a vibrating crushing triangular plate 432. The top of the rotating crushing tooth 431 is rotatably mounted on the top of the hollow cavity 151 near the feeding platform 11. The bottom of the rotating crushing tooth 431 away from the feeding platform 11 is rotatably connected to the second rotating plate 425 near the feeding platform 11. The vibrating crushing triangular plate 432 is mounted on the hollow cavity 151 near the feeding platform 11. Multiple crushing teeth 433 are recessed along the height direction at the end of the vibrating crushing triangular plate 432 away from the feeding platform 11. A crushing gap 434 is provided between the vibrating crushing triangular plate 432 and the rotating crushing tooth 431. The crushing gap 434 is located directly below the hard material discharge trough 153.

[0042] For example, in one embodiment: an electrically controlled sorting plate is provided inside the first funnel 32, and the electrically controlled sorting plate is electrically connected to the second drive motor 41; rice stalk and grain collection bags are provided at the bottom of both the second funnel 35 and the first sorting tube 33. A sensor is provided inside the return spring, and the sensor is electrically connected to the second drive motor 41.

[0043] For example, in one embodiment: when a large amount of rice straw needs to be crushed, the blower and the primary crushing drive motor are started. The crushing drive motor transmits power along the second rotating chain to the transmission wheel 231, causing the primary crushing roller 23 to rotate. At the same time, its power is transmitted along the first transmission belt 232 to the second extrusion transmission roller 222, causing the second extrusion transmission roller 222 to rotate. The first extrusion transmission roller 221 rotates synchronously using the first transmission chain 223. Furthermore, the rotation of the second extrusion transmission roller 222 causes the transmission gear 224 to rotate synchronously, and utilizes… Two transmission gears 224 transmit power to the upper extrusion transmission wheel set 22. Then, multiple rice straws are fed into the primary crushing chamber 26 through the feed chute 263. The two oppositely arranged extrusion transmission wheel sets 22 will drive the multiple rice straws. Since the distance between the two first rotating holes 264 is greater than the distance between the two second rotating holes 265, the two first extrusion transmission rollers 221 and the two second extrusion transmission rollers 222 will squeeze and fix the multiple rice straws during transmission, preventing the rice straws from flying off and being thrown out when the primary crushing roller cutter 23 rotates and crushes them.

[0044] When multiple rice stalks are driven by two extrusion drive wheel sets 22, they enter between the primary crushing roller cutter 23 and the arc-shaped screen section 242 along the guide plate section 241. The primary crushing roller cutter 23 rotates and cuts the rice stalks, crushing them into rice stalk particles. These particles fall from the arc-shaped screen section 242 into the second discharge chute 261 and then into the vibrating screen 31. After being screened by the vibrating screen 31, the rice stalk particles fall through the first funnel 32 into the first sorting pipe 33 and into the rice stalk particle collection bag.

[0045] Simultaneously, the blower sends the dry airflow into the ventilation slot 212 through the pipe, and adjusts it through the air curtain nozzle 213 to form a drying air curtain. The drying air curtain is inclined and formed between the primary crushing roller 23 and the hard stalk transmission element 25 to prevent some rice stalk particles from being thrown out when the primary crushing roller 23 rotates and cuts. At the same time, the inclined drying air curtain blows towards the arc-shaped elastic part 243 and flows along the arc-shaped elastic part 243 to the arc-shaped screen part 242. When the primary crushing roller 23 rotates and cuts, the rice stalk particles quickly fall from the arc-shaped screen part 242 to the second feeding trough 261, thus accelerating the crushing efficiency.

[0046] For example, in one embodiment: when hard stems appear among multiple rice stalks, the primary crushing roller 23 cannot effectively cut and crush the hard stems, causing them to elongate as they are conveyed by the two extrusion drive roller sets 22. This causes the adjusting profile plate 24 to be compressed, resulting in deformation of the arc-shaped elastic part 243. The arc-shaped elastic part 243 bends downward, causing the first connecting sliding shaft 245 to move down along the third strip-shaped groove 260. The arc-shaped sliding part 244 rotates accordingly, causing the second connecting sliding shaft 246 to move along the second strip-shaped groove 269 away from the feeding table 11. This forms a smooth arc surface between the top surface of the arc-shaped sliding part 244 and the top surface of the arc-shaped elastic part 243, allowing the hard stems to pass between the drive roller 231 and the smooth arc surface, and guided by the smooth arc surface towards the first hard stem roller 243. The second hard stalk roller 251 moves between itself and the second hard stalk roller 252. At the same time, since a connecting rod 255 is provided between the second hard stalk roller 252 and the second connecting sliding shaft 246, when the second connecting sliding shaft 246 moves, the second hard stalk roller 252 will also move along the first strip groove 268 away from the feeding table 11, causing the return spring to compress, causing the first transmission belt 232 to gradually tighten, so that the rotation power of the primary crushing roller 23 will be transmitted to the second extrusion transmission roller 222, causing the second extrusion transmission roller 222 to rotate. When the second extrusion transmission roller 222 rotates, it transmits the power to the first hard stalk roller 251 through the elastic transmission belt 257, causing the first hard stalk roller 251 to rotate synchronously. The rotation of the second extrusion transmission roller 222 and the first hard stalk roller 251 is used to send the hard stalk to the third discharge chute 262.

[0047] Simultaneously, when the return spring is compressed, the sensor recognizes this situation and sends a signal to the second drive motor 41, causing the second drive motor 41 to start. This causes the output shaft of the second drive motor 41 to rotate and transmit power along the second rotating belt 420 to the rotating wheel 422. The rotating wheel 422 rotates, causing the two split columns 428 to rotate as well, causing the two transmission rods 424 to move as well, causing the transmission connecting shaft 429 to move as well, causing the second rotating plate 425 to move as well, causing the rotating crushing toothed blade 431 to rotate, performing the extrusion and cutting operation on the hard stems. The hard stems are extruded, cut, and crushed, and fall into the second funnel 35 through the first discharge chute 152.

[0048] Simultaneously, when the second drive motor 41 starts, it will activate the electronically controlled sorting plate, causing the first sorting tube 33 to close and the second sorting tube 34 to open. This allows qualified rice stalk particles to enter the second sorting tube 34 and fall into the second funnel 35 during the screening process of the vibrating screen 31. Larger rice stalk particles will be screened by the vibrating screen 31 and fall into the hollow cavity 151 through the hard stalk discharge pipe 36. They will then be further crushed by the hard stalk crushing component 40 and subsequently fall into the second funnel 35 for collection.

[0049] For example, in one embodiment: see Figure 9 The primary crushing component 20, the blower and the primary crushing drive motor can be installed in the combine harvester. The input pipe 90 of the combine harvester is connected to the feed trough 263. The bottom of the third discharge trough 262 is provided with an outflow pipe 91 to directly discharge rice stalk particles into the cultivated field, so as to directly and quickly crush and return the rice stalks in the cultivated field.

[0050] Installation process: The bottoms of the feeding platform 11 and the base frame 12 are both installed on the installation ground, with one end of the base frame 12 connected to the middle of the inner side of the feeding platform 11. The bottom of the screening mounting frame 13 is installed on the top of the base frame 12 near the feeding platform 11. The bottoms of the four lifting mounting columns 141 are all installed on the installation ground, so that the crushing drive mounting box 14 is positioned directly above the screening mounting frame 13. The bottom of the hard crushing shell 15 is installed on the end of the base frame 12 away from the feeding platform 11. The bottom surface of the primary crushing mounting shell 21 is installed on the top surface of the screening mounting frame 13. The first extrusion drive roller 221 is rotatably installed in the first rotation hole 264, the second extrusion drive roller 222 is rotatably installed in the second rotation hole 265, and the two ends of the primary crushing roller blade 23 are rotatably installed in the primary crushing chamber. The guide plate portion 241 is installed on both sides of the middle of the primary crushing chamber 26, and is located between the primary crushing roller 23 and the second extrusion transmission roller 222. One end of the arc-shaped screen portion 242 is fixedly installed on the middle of the bottom surface of the guide plate portion 241, and one end of the arc-shaped elastic portion 243 is installed on the other end of the arc-shaped screen portion 242. The first connecting sliding shaft 245 is slidably installed in the third strip-shaped slide groove 260. One end of the arc-shaped sliding portion 244 is rotatably installed in the middle of the first connecting sliding shaft 245 through a torsion spring. The second connecting sliding shaft 246 is slidably installed in the second strip-shaped slide groove 269. The first hard stalk roller 251 is rotatably installed in the third rotating hole 266 away from the feeding table 11. The second hard stalk roller 251 is rotatably installed in the third rotating hole 266 away from the feeding table 11. The stalk roller 252 is slidably installed in the first strip groove 268. The first tensioning column 253 is installed in the third rotating hole 266 adjacent to the feeding table 11. The second tensioning column 254 is installed in the fourth rotating hole 267. The vibrating screen 31 is installed on the top of the screening mounting frame 13 near one end of the feeding table 11. The hard stalk discharge pipe 36 is installed on the other end of the top of the screening mounting frame 13, and the internal cavity of the hard stalk discharge pipe 36 is connected to the vibrating screen 31. The top of the hard stalk discharge pipe 36 is installed in the third discharge trough 262, and the hard stalk discharge pipe 36 is located directly above the hard discharge trough 153. The first funnel 32 is installed in the middle of the screening mounting frame 13. The top of the first sorting pipe 33 is installed on the bottom of the first funnel 32 near the feeding table 11. The second sorting tube 34 is installed at the top and the other end of the bottom of the first funnel 32. The second funnel 35 is installed in the middle of the base frame 12, with the end of the second funnel 35 away from the feeding table 11 located directly below the first discharge chute 152, and the bottom end of the second sorting tube 34 located in the other end of the second funnel 35. The second drive motor 41 is installed at the end of the hollow cavity 151 away from the feeding table 11. The top of the rotating mounting platform 421 is installed at the corner of the end away from the feeding table 11 and is installed on the top of the hollow cavity 151. The two ends of the rotating shaft 427 are respectively installed on both sides of the bottom of the rotating mounting platform 421 near the feeding table 11. The first transmission rotating plate 423 is rotatably installed at the bottom of the hollow cavity 151 away from the feeding table 11 and located directly below the rotating mounting platform 421.A transmission tensioning column 426 is installed in the middle of the hollow cavity 151 and directly below the rotating mounting platform 421. The top ends of two transmission rods 424 are rotatably mounted on two split columns 428, and the bottom ends of the two transmission rods 424 are rotatably mounted on both ends of the transmission connecting shaft 429. The end of the second rotating plate 425 away from the feeding table 11 is rotatably mounted on the transmission connecting shaft 429. The top of the rotating crushing toothed blade 431 is rotatably mounted on the top of the hollow cavity 151 near the feeding table 11, and the bottom end of the rotating crushing toothed blade 431 away from the feeding table 11 is rotatably connected to the end of the second rotating plate 425 near the feeding table 11. A vibrating crushing triangular plate 432 is installed on the end of the hollow cavity 151 near the feeding table 11.

[0051] This invention can achieve:

[0052] 1. This invention achieves automated crushing and cutting of rice straw through a frame mounting assembly 10, a primary crushing assembly 20, and a screening assembly 30. During the cutting process, two extrusion drive roller sets 22 compress and fix the rice straw, preventing it from flying out when the primary crushing rollers 23 rotate. Simultaneously, a fan delivers dry airflow into the ventilation duct 212, forming a drying air curtain, effectively preventing rice straw particles from being thrown out during the primary crushing rollers 23's rotation, thus improving crushing efficiency. Furthermore, the inclined drying air curtain blows towards the arc-shaped screen section 242, accelerating the falling and screening speed of rice straw particles, further increasing production efficiency.

[0053] 2. This invention intelligently completes the sorting and crushing of hard rice stalks through the frame mounting assembly 10, the primary crushing assembly 20, the screening assembly 30, and the hard stalk crushing assembly 40. This effectively prevents the occurrence of blade jamming, reduces energy and raw material consumption, and automatically sorts rice stalk particles. Qualified rice stalk particles are collected into corresponding funnels, while larger rice stalk particles are screened by the vibrating screen 31 and fall into the hollow cavity 151 through the hard stalk discharge pipe 36. They are then further crushed by the hard stalk crushing assembly 40 and subsequently fall into the second funnel 35 for collection, saving raw materials and increasing raw material utilization.

[0054] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. An energy-saving rice straw crushing and pulverizing machine, characterized in that: The assembly includes a frame mounting assembly (10), a primary crushing assembly (20), a screening assembly (30), and a hard stalk crushing assembly (40). The frame mounting assembly (10) includes a feeding platform (11), a base frame (12), a screening mounting frame (13), a crushing drive mounting box (14), and a hard stalk crushing shell (15). The bottoms of the feeding platform (11) and the base frame (12) are both mounted on the installation ground, and one end of the base frame (12) is connected to the middle of the inner side of the feeding platform (11). The bottom of the screening mounting frame (13) is mounted on the top of the base frame (12) near the feeding platform (11). The four corners of the bottom surface of the crushing drive mounting box (14) are respectively provided with lifting mounting columns (141), and the bottoms of the four lifting mounting columns (141) are all mounted on the installation ground, so that the crushing drive mounting box (14) is set directly above the screening mounting frame (13). The crushing drive mounting box (14) is equipped with a fan and a primary crushing drive motor. A pre-set groove (142) is recessed on one side of the bottom of the crushing drive mounting box (14). The pre-set groove (142) is connected to the internal cavity of the crushing drive mounting box (14). The bottom of the hard crushing shell (15) is installed on the base frame (12) at the end away from the feeding table (11). The hard crushing shell (15) is hollow inside, forming a hollow cavity (151). A first material drop groove (152) is recessed at the bottom surface of the hollow cavity (151) near the feeding table (11). A hard material chute (153) is recessed at one end of the top surface of the cavity (151) near the feeding platform (11). The bottom surface of the primary crushing component (20) is installed on the top surface of the screening mounting frame (13), and the top surface of the primary crushing component (20) near the feeding platform (11) is connected to the middle of the bottom surface of the crushing drive mounting box (14). The screening component (30) is installed in the screening mounting frame (13), and the hard stalk crushing component (40) is installed in the hollow cavity (151). The primary crushing assembly (20) includes a primary crushing mounting shell (21), two extrusion drive wheel sets (22), a primary crushing roller cutter (23), an adjusting profile plate (24), and a hard stalk drive element (25). The bottom surface of the primary crushing mounting shell (21) is mounted on the top surface of the screening mounting frame (13). The primary crushing mounting shell (21) is hollow inside to form a primary crushing cavity (26). The two extrusion drive wheel sets (22) are rotatably mounted on one end of the primary crushing cavity (26) near the feeding platform (11). The primary crushing roller cutter (23) is rotatably mounted in the middle of the primary crushing cavity (26). The adjusting profile plate (24) is mounted in the middle of the primary crushing cavity (26) and located below the primary crushing roller cutter (23). The hard stalk drive element (25) is mounted on the other end of the primary crushing cavity (26). The side wall of the primary crushing chamber (26) away from the feeding platform (11) is recessed with two third rotating holes (266) and a fourth rotating hole (267). The two third rotating holes (266) and the fourth rotating hole (267) are arranged in an equilateral triangle, and the fourth rotating hole (267) is located below the two third rotating holes (266). The side wall of the primary crushing chamber (26) away from the feeding platform (11) is recessed with a first strip groove (268) that slopes downward. The first strip groove (268) is located below the fourth rotating hole (266). A rotating hole (267) and a third rotating hole (266) away from the feeding table (11) are provided. A second strip groove (269) and a third strip groove (260) are recessed at one end of the side wall of the primary crushing chamber (26) away from the feeding table (11). The second strip groove (269) and the third strip groove (260) are both located at one end of the first strip groove (268) near the feeding table (11), and the second strip groove (269) and the third strip groove (260) are staggered. Each extrusion drive roller assembly (22) includes a first extrusion drive roller (221) and a second extrusion drive roller (222). The adjustable profile plate (24) includes a guide straight plate (241), an arc-shaped screen (242), an arc-shaped elastic part (243), and an arc-shaped sliding part (244). The guide straight plate (241) is installed on both sides of the middle of the primary crushing chamber (26), and the guide straight plate (241) is located between the primary crushing roller (23) and the second extrusion drive roller (222). One end of the arc-shaped screen (242) is fixedly installed on the middle of the bottom surface of the guide straight plate (241), and one end of the arc-shaped elastic part (243) is installed on... At the other end of the arc-shaped screen part (242), the other end of the arc-shaped elastic part (243) is provided with a first connecting sliding shaft (245), and the first connecting sliding shaft (245) is slidably installed in the third strip groove (260). One end of the arc-shaped sliding part (244) is rotatably installed in the middle of the first connecting sliding shaft (245) by a torsion spring, and the other end of the arc-shaped sliding part (244) is provided with a second connecting sliding shaft (246), and the second connecting sliding shaft (246) is slidably installed in the second strip groove (269). The rigid stalk transmission element (25) includes a first rigid stalk roller (251), a second rigid stalk roller (252), a first tensioning column (253), and a second tensioning column (254). The first rigid stalk roller (251) is rotatably mounted in a third rotating hole (266) away from the feeding table (11). The second rigid stalk roller (252) is slidably mounted in a first strip groove (268). A rotating cylinder is rotatably provided at the end of the second rigid stalk roller (252). The rotating cylinder is positioned between the end of the first strip groove (268) away from the feeding table (11). A return spring is provided, and a connecting rod (255) is provided between the second hard stalk roller (252) and the second connecting sliding shaft (246). The first tensioning column (253) is installed in the third rotating hole (266) adjacent to the feeding table (11), and the second tensioning column (254) is installed in the fourth rotating hole (267). An elastic transmission belt (257) is sleeved on one end of the first hard stalk roller (251), the second hard stalk roller (252), the first tensioning column (253) and the second tensioning column (254) to realize the transmission connection.

2. The energy-saving rice straw crushing and pulverizing combined machine according to claim 1, characterized in that: The bottom of the primary crushing chamber (26) is recessed in the middle of the bottom surface and a second material discharge groove (261) is recessed at the end of the bottom surface of the primary crushing chamber (26) away from the feeding platform (11). A third material discharge groove (262) is recessed at the end of the bottom surface of the primary crushing chamber (26) away from the feeding platform (11).

3. The energy-saving rice straw crushing machine according to claim 2, characterized in that: The top surface of the primary crushing housing (21) is recessed at one end away from the feeding platform (11) with an inclined surface (211). A ventilation groove (212) is recessed in the middle of the inclined surface (211). An air curtain nozzle (213) is installed in the ventilation groove (212). The air curtain nozzle (213) is connected to the blower through a pipe. The feed groove (263) is recessed in the middle of one end of the primary crushing chamber (26) near the feeding platform (11). Two first rotating holes (264) and two second rotating holes (265) are recessed along the length direction in the middle of one end of the side wall of the primary crushing chamber (26) near the feeding platform (11). The distance between the two first rotating holes (264) is greater than the distance between the two second rotating holes (265). A docking groove (271) is recessed on one side of the middle of the top surface of the primary crushing chamber (26). The docking groove (271) is opposite to the preset groove (142).

4. The energy-saving rice straw crushing machine according to claim 3, characterized in that: The first extrusion drive roller (221) is rotatably installed in the first rotation hole (264), and the second extrusion drive roller (222) is rotatably installed in the second rotation hole (265). A first transmission chain (223) is sleeved between one end of the first extrusion drive roller (221) and one end of the second extrusion drive roller (222). A transmission gear (224) is provided at one end of the two second rotation holes (265) away from the first transmission chain (223). The two transmission gears (224) are meshed and connected. The two ends of the primary crushing roller (23) are rotatably installed in the middle of both sides of the primary crushing chamber (26). A transmission wheel (231) is provided at one end of the primary crushing roller (23). A second rotation chain is provided between the transmission wheel (231) and the output shaft of the primary crushing drive motor. A first transmission belt (232) is provided between the other end of the primary crushing roller (23) and one end of the second extrusion drive roller (222).

5. The energy-saving rice straw crushing machine according to claim 4, characterized in that: A third rotating belt (258) is provided between the second hard stalk roller (252) and the primary crushing roller (23).

6. The energy-saving rice straw crushing machine according to claim 5, characterized in that: The screening assembly (30) includes a vibrating screen (31), a hard stalk discharge pipe (36), a first funnel (32), a first sorting pipe (33), a second sorting pipe (34), and a second funnel (35). The vibrating screen (31) is installed on the top of the screening mounting frame (13) near one end of the feeding platform (11). The hard stalk discharge pipe (36) is installed on the other end of the top of the screening mounting frame (13), and the internal cavity of the hard stalk discharge pipe (36) is connected to the vibrating screen (31). The top of the hard stalk discharge pipe (36) is installed in the third discharge trough (262), and the hard stalk discharges... The material pipe (36) is located directly above the hard material chute (153). The first funnel (32) is installed in the middle of the screening mounting frame (13). The top of the first sorting pipe (33) is installed at the bottom of the first funnel (32) near the end of the feeding platform (11). The second sorting pipe (34) is installed at the top at the other end of the bottom of the first funnel (32). The second funnel (35) is installed in the middle of the base frame (12). The end of the second funnel (35) away from the feeding platform (11) is located directly below the first material chute (152), and the bottom end of the second sorting pipe (34) is located in the other end of the second funnel (35).

7. The energy-saving rice straw crushing machine according to claim 6, characterized in that: The hard stalk crushing assembly (40) includes a second drive motor (41), a transmission element (42), and an extrusion crushing element (43). The second drive motor (41) is installed at one end of the hollow cavity (151) away from the feeding table (11), the transmission element (42) is installed in the middle of the hollow cavity (151), and the extrusion crushing element (43) is installed at the other end of the hollow cavity (151).

8. The energy-saving rice straw crushing machine according to claim 7, characterized in that: The transmission element (42) includes a rotating mounting platform (421), a rotating wheel (422), a first transmission rotating plate (423), a transmission tensioning column (426), two transmission rotating rods (424), and a second rotating plate (425). The top of the rotating mounting platform (421) is mounted on the top of the hollow cavity (151) at the corner away from the feeding table (11). A rotating shaft (427) is provided in the middle of the rotating wheel (422). A split column (428) is provided on the top of both ends of the rotating shaft (427). The two ends of the rotating shaft (427) are respectively mounted on both sides of the bottom of the rotating mounting platform (421) near the feeding table (11). The first transmission rotating plate (423) is rotatably mounted on the bottom of the hollow cavity (151) at the end away from the feeding table (11). Directly below the rotating mounting platform (421), the other end of the first transmission rotating plate (423) is provided with a transmission connecting shaft (429). The transmission tension column (426) is installed in the middle of the hollow cavity (151) and located directly below the rotating mounting platform (421). The second rotating belt (420) is sleeved on the output shaft of the transmission tension column (426), the rotating wheel (422) and the second drive motor (41) to realize the transmission connection. The top ends of the two transmission rotating rods (424) are respectively rotatably installed on the two split columns (428), and the bottom ends of the two transmission rotating rods (424) are respectively rotatably installed on both ends of the transmission connecting shaft (429). The end of the second rotating plate (425) away from the feeding table (11) is rotatably installed on the transmission connecting shaft (429).

9. The energy-saving rice straw crushing machine according to claim 8, characterized in that: The extrusion crushing element (43) includes a rotating crushing tooth (431) and a vibrating crushing triangular plate (432). The top of the rotating crushing tooth (431) is rotatably mounted on the top of the hollow cavity (151) near the end of the feeding platform (11). The bottom of the rotating crushing tooth (431) away from the feeding platform (11) is rotatably connected to the end of the second rotating plate (425) near the feeding platform (11). The vibrating crushing triangular plate (432) is mounted on the end of the hollow cavity (151) near the feeding platform (11). Multiple crushing teeth (433) are recessed along the height direction on the end of the vibrating crushing triangular plate (432) away from the feeding platform (11). A crushing gap (434) is provided between the vibrating crushing triangular plate (432) and the rotating crushing tooth (431). The crushing gap (434) is located directly below the hard material discharge trough (153).

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