Efficient cutterhead type hay cutter

Abstract

The invention discloses an efficient cutterhead type hay cutter which comprises a support, a pre-cutting mechanism is fixedly arranged at the top end of the support, a carding mechanism is installed at one end of the pre-cutting mechanism, a conveying mechanism is installed at the other end of the pre-cutting mechanism, a hay cutting mechanism is installed at one end of the conveying mechanism, second rolling wheels are installed on the two sides of the support, and the pre-cutting mechanism comprises a support. Fixed rollers are rotationally connected to the two sides of the inner wall of the support, a first single-row chain wheel is fixedly arranged at one end of one fixed roller, and a double-row chain wheel is fixedly arranged at one end of the other fixed roller. Through cooperation of the pre-cutting mechanism and the carding mechanism, before materials are cut, plants can be carded, meanwhile, slitting is conducted in the plant stalk direction, material particles are prevented from being too large, it is ensured that the materials are fully fermented, the silage quality is guaranteed, the material cutting efficiency is improved, meanwhile, the blade loss of the hay cutter is reduced, and the service life of the hay cutter is prolonged; and property loss is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile processing, and specifically relates to an efficient cutter head type forage chopper. Background Art

[0002] A forage chopper is an agricultural machine used for cutting forage and crop straws (such as corn straws, wheat straws, rice straws, etc.), and is widely used in the fields of animal husbandry, farms, biomass energy processing, etc. Its core function is to cut long-fiber plant materials into short segments for easy consumption, storage or further processing (such as silage, granulation, etc.) by animals.

[0003] In view of this, the invention patent with the authorization announcement number of CN108551901B discloses a forage chopper, which includes a machine shell and a machine frame. The machine shell is installed on the machine frame, and a discharge port is provided on the machine shell. Among them: the forage chopper further includes a crushing adjustment device for adjusting the size of the discharge port. The forage chopper provided by the present invention can well control the crushing particle size of materials and improve the chopping effect.

[0004] However, there are still some problems with the forage chopper in the above patent application: when using the forage chopper to cut forage or straw, the thicknesses of different materials are different. If the materials with larger diameters are not processed before cutting, it will not only cause the material particles to be too large, but also affect the difficult full fermentation of the materials, affect the silage quality. At the same time, the larger diameter of the materials will also cause the increased loss of the forage chopper and affect its service life. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides an efficient cutter head type forage chopper, which includes a bracket. The top end of the bracket is fixedly provided with a pre-cutting mechanism. One end of the pre-cutting mechanism is installed with a combing mechanism, and the other end of the pre-cutting mechanism is installed with a conveying mechanism. One end of the conveying mechanism is installed with a forage cutting mechanism. Both sides of the bracket are installed with second rollers;

[0006] The pre-cutting mechanism comprises a support, both sides of the inner wall of the support are rotatably connected with fixed rollers, one end of one of the fixed rollers is fixedly provided with a first single-row sprocket, and one end of the other fixed roller is fixedly provided with a double-row sprocket, U-shaped frames are fixedly provided on both sides of the top of the support, the inner wall of each of the U-shaped frames is rotatably connected with a first lead screw, the outer wall of each of the first lead screws is threadedly connected with a movable side plate, two movable rollers are rotatably connected between the two movable side plates, and the outer wall of each of the fixed rollers and the outer wall of each movable roller are fixedly provided with a plurality of evenly distributed circular cutters, one of the movable A first gear is fixedly provided at one end of the movable roller, and a second single-row sprocket is fixedly provided at one end of the first gear and one end of the other movable roller, a second gear is rotatably connected to the top of one side of one of the movable side plates, the second gear is meshed with the first gear, a third single-row sprocket is fixedly provided at one end of the second gear, a work-shaped seat is fixedly provided at one end of the support, a movable block is inserted in a movable opening opened at one side of the work-shaped seat, a fourth single-row sprocket is rotatably connected to one side of the movable block, and the fourth single-row sprocket, the third single-row sprocket and the double-row sprocket are connected by a first transmission chain.

[0007] As a preferred technical solution of the present invention, a first servo motor is installed on one side of the support, the output end of the first servo motor is fixedly connected to the other end of one of the fixed rollers, the first single-row sprocket and the double-row sprocket are connected by a second transmission chain, and the two second single-row sprockets are connected by a third transmission chain.

[0008] As a preferred technical solution of the present invention, a first transmission sprocket is fixedly provided at the top of each of the first lead screws, and the two first transmission sprockets are connected through a fourth transmission chain. A mounting seat is fixedly provided on one side of the top of the U-shaped frame, and a first stepper motor is installed at the top of the mounting seat. The output end of the first stepper motor is fixedly connected to the top of one of the first transmission sprockets, vertical rods are fixedly provided on both sides of the top of the work-shaped seat, a second lead screw is rotatably connected to the inner wall of the movable opening, a movable block is threadedly connected to the outer wall of the second lead screw, and a turntable is fixedly provided at one end of the second lead screw.

[0009] As a preferred technical solution of the present invention, the combing mechanism includes a U-shaped frame, both sides of the inner wall of the U-shaped frame are rotatably connected with a third screw, a movable cross plate is threadedly connected between the two third screws, an electric cylinder is installed on the top of the movable cross plate, a movable frame is fixedly provided at the output end of the electric cylinder, fixed rings are fixedly provided on both sides of the bottom end of the movable frame, a movable column is interspersed between the two fixed rings, a plurality of evenly distributed movable rings are interspersed on the outer wall of the movable column, and a combing rod is fixedly provided at the bottom end of each movable ring.

[0010] As a preferred technical solution of the present invention, a second driving sprocket is fixedly provided at one end of each of the third lead screws, and the two second driving sprockets are connected by a fifth driving chain. A second stepping motor is installed at one end of the U-shaped frame, and the output end of the second stepping motor is fixedly connected to the other end of one of the third lead screws. First hexagon socket head cap screws are threadedly connected to both sides of each fixed ring, and second hexagon socket head cap screws are threadedly connected to both sides of each movable ring.

[0011] As a preferred technical solution of the present invention, the conveying mechanism includes a conveying frame. Both sides of the inner wall of the conveying frame are rotatably connected with conveying rollers, and a conveyor belt is connected between the two conveying rollers. A second servo motor is installed on one side of the conveying frame, and the output end of the second servo motor is fixedly connected to one end of one of the conveying rollers. Multiple rows of evenly distributed connecting cones are fixedly provided on the surface of the conveyor belt.

[0012] As a preferred technical solution of the present invention, the forage chopping mechanism includes a base. A housing is installed inside the base. An inspection opening is opened at one end of the housing, and a movable cover is hinged inside the inspection opening. One side of the top of the housing is fixedly communicated with a discharge pipe, and the top of the discharge pipe is fixedly communicated with a discharge port. One side of the housing is rotatably connected with a transmission shaft. A first pulley is fixedly provided at one end of the transmission shaft. A mounting plate is fixedly provided at one end of the base, and a third servo motor is installed on the top of the mounting plate. A second pulley is fixedly provided at the output end of the third servo motor, and the second pulley and the first pulley are connected by a transmission belt. A protective cover is fixedly provided on one side of the base, and first rollers are installed at the bottoms of both ends of the base.

[0013] As a preferred technical solution of the present invention, a fixed knife is installed on one side inside the housing. A cutter disc is fixedly provided at the other end of the transmission shaft. Multiple evenly distributed moving knives are installed on the surface of one side of the cutter disc, and multiple evenly distributed auxiliary blades are installed on the inner wall of the cutter disc.

[0014] As a preferred technical solution of the present invention, a control box is fixedly provided at the top of one side of the bracket. A switch panel is fixedly provided inside the control box. First servo motor switch, first stepping motor switch, second stepping motor switch, electric cylinder switch, second servo motor switch and third servo motor switch are fixedly provided on the surface of the switch panel. The first servo motor, the first stepping motor, the second stepping motor, the electric cylinder, the second servo motor and the third servo motor are respectively electrically connected to an external power supply through the first servo motor switch, the first stepping motor switch, the second stepping motor switch, the electric cylinder switch, the second servo motor switch and the third servo motor switch.

[0015] The high-efficiency blade-type grass mower proposed by the present invention can bring the following beneficial effects:

[0016] 1. This high-efficiency blade-type hay chopper can comb the plants before cutting the materials through the cooperation of the pre-cutting mechanism and the combing mechanism, and cut them along the direction of the plant stems to avoid the material particles being too large, ensure the material is fully fermented, ensure the silage quality, improve the cutting efficiency of the material, and reduce the loss of the hay chopper blade, extend its service life, and avoid property loss.

[0017] 2. In the pre-cutting mechanism of the efficient blade-type grass mower, a movable side plate is threadedly connected to the first lead screw, movable rollers are rotatably connected between the movable side plates, the first gear is meshed with the second gear, the double sprocket, the third single-row sprocket and the fourth single-row sprocket are connected by a first transmission chain. When cutting different plants, the distance between the fixed roller and the movable roller can be adjusted according to the diameter of the plant, thereby ensuring the processing of different plants.

[0018] 3. In the combing mechanism of the high-efficiency blade-type grass mower, the third lead screw is threadedly connected to a movable horizontal plate, the electric cylinder on the movable horizontal plate is connected to a movable frame, a movable column is inserted in a fixed ring, and a movable ring on the movable column is connected to a combing rod. Before cutting the plants, the plants can be combed along the square of the stems to avoid the plants from being scattered, and the dead leaves and other plants on the plants can be combed out to improve the quality of the materials. At the same time, the movable column and the combing rod are detachable, which is convenient for cleaning after use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the connection structure between the pre-cutting mechanism and the combing mechanism of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the pre-cutting mechanism of the present invention;

[0023] Figure 4 The present invention is located in Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 5 It is a structural schematic diagram of the combing mechanism of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the grass cutting mechanism of the present invention;

[0026] Figure 7 It is a schematic diagram of the internal structure of the housing of the present invention.

[0027] In the figure: 1. Bracket; 2. Pre-cutting mechanism; 201. Support; 202. Fixed roller; 203. First servo motor; 204. U-shaped frame; 205. Movable side plate; 206. Movable roller; 207. Circular cutter; 208. First lead screw; 209. First driving sprocket; 210. Mounting seat; 211. First stepping motor; 212. I-shaped seat; 213. Vertical rod; 214. First single-row sprocket; 215. Double-row sprocket; 216. First gear; 217. Second single-row sprocket; 218. Second gear; 219. Third single-row sprocket; 220. Second lead screw; 221. Movable block; 222. Fourth single-row sprocket; 3. Combing mechanism; 301. U-shaped frame; 302. Third lead screw; 303. Second driving sprocket; 304. Second stepping motor; 305. Moving cross plate; 306. Electric cylinder; 307. Movable frame; 308. Fixed ring; 309. Movable column; 310. Movable ring; 311. Combing rod; 4. Conveying mechanism; 401. Conveying frame; 402. Conveyor belt; 403. Second servo motor; 404. Connecting cone; 5. Chopping mechanism; 501. Base; 502. Housing; 503. Mounting plate; 504. Third servo motor; 505. Protective cover; 506. First roller; 507. Movable cover; 508. Discharge pipe; 509. First pulley; 510. Cutter disc; 511. Moving knife; 512. Fixed knife; 513. Auxiliary blade; 6. Second roller. Specific embodiments

[0028] In order to more clearly illustrate the overall concept of the present invention, the following will be described in detail by way of examples in conjunction with the accompanying drawings of the specification.

[0029] As Figures 1 to 7 shown, an embodiment of the present invention provides an efficient cutter-disc type forage chopper, which includes a bracket 1. A pre-cutting mechanism 2 is fixedly provided at the top of the bracket 1. One end of the pre-cutting mechanism 2 is provided with a combing mechanism 3, and the other end of the pre-cutting mechanism 2 is provided with a conveying mechanism 4. One end of the conveying mechanism 4 is provided with a chopping mechanism 5. Second rollers 6 are installed on both sides of the bracket 1;

[0030] The pre-cutting mechanism 2 includes a support 201. Both sides of the inner wall of the support 201 are rotatably connected with fixed rollers 202. One end of one of the fixed rollers 202 is fixedly provided with a first single-row sprocket 214, and one end of the other fixed roller 202 is fixedly provided with a double-row sprocket 215. Both sides of the top of the support 201 are fixedly provided with U-shaped frames 204. The inner wall of each U-shaped frame 204 is rotatably connected with a first lead screw 208. The outer wall of each first lead screw 208 is threadedly connected with a movable side plate 205. Two movable rollers 206 are rotatably connected between the two movable side plates 205. A plurality of uniformly distributed circular cutters 207 are fixedly provided on the outer wall of each fixed roller 202 and the outer wall of each movable roller 206. One end of one of the movable rollers 206 is fixedly provided with a first gear 216. One end of the first gear 216 and one end of the other movable roller 206 are both fixedly provided with second single-row sprockets 217. One side of the top of one of the movable side plates 205 is rotatably connected with a second gear 218. The second gear 218 meshes with the first gear 216. One end of the second gear 218 is fixedly provided with a third single-row sprocket 219. One end of the support 201 is fixedly provided with an I-shaped seat 212. A movable block 221 is inserted into the movable opening formed on one side of the I-shaped seat 212. One side of the movable block 221 is rotatably connected with a fourth single-row sprocket 222. The fourth single-row sprocket 222, the third single-row sprocket 219 and the double-row sprocket 215 are connected by a first transmission chain. A first servo motor 203 is installed on one side of the support 201. The output end of the first servo motor 203 is fixedly connected with the other end of one of the fixed rollers 202. The first single-row sprocket 214 and the double-row sprocket 215 are connected by a second transmission chain. The two second single-row sprockets 217 are connected by a third transmission chain. The top of each first lead screw 208 is fixedly provided with a first transmission sprocket 209. The two first transmission sprockets 209 are connected by a fourth transmission chain in an inserted manner. One side of the top of the U-shaped frame 204 is fixedly provided with a mounting seat 210. A first stepping motor 211 is installed on the top of the mounting seat 210. The output end of the first stepping motor 211 is fixedly connected with the top of one of the first transmission sprockets 209. Both sides of the top of the I-shaped seat 212 are fixedly provided with vertical rods 213. The inner wall of the movable opening is rotatably connected with a second lead screw 220. The outer wall of the second lead screw 220 is threadedly connected with the movable block 221, and one end of the second lead screw 220 is fixedly provided with a turntable.

[0031] The carding mechanism 3 includes a U-shaped frame 301. Both sides of the inner wall of the U-shaped frame 301 are rotatably connected with third lead screws 302. A moving cross plate 305 is threadedly connected between the two third lead screws 302. An electric cylinder 306 is installed at the top end of the moving cross plate 305. The output end of the electric cylinder 306 is fixedly provided with a movable frame 307. Both sides of the bottom end of the movable frame 307 are fixedly provided with fixing rings 308. An activity column 309 is inserted between the two fixing rings 308. A plurality of evenly distributed activity rings 310 are inserted on the outer wall of the activity column 309. A carding rod 311 is fixedly provided at the bottom end of each activity ring 310. One end of each third lead screw 302 is fixedly provided with a second transmission sprocket 303. The two second transmission sprockets 303 are connected by a fifth transmission chain. One end of the U-shaped frame 301 is installed with a second stepping motor 304. The output end of the second stepping motor 304 is fixedly connected with the other end of one of the third lead screws 302. First inner hexagon bolts are threadedly connected to both sides of each fixing ring 308. Second inner hexagon bolts are threadedly connected to both sides of each activity ring 310.

[0032] The conveying mechanism 4 includes a conveying frame 401. Both sides of the inner wall of the conveying frame 401 are rotatably connected with conveyor rollers. A conveyor belt 402 is connected between the two conveyor rollers. One side of the conveying frame 401 is installed with a second servo motor 403. The output end of the second servo motor 403 is fixedly connected with one end of one of the conveyor rollers. A plurality of evenly distributed connecting cones 404 are fixedly provided on the surface of the conveyor belt 402.

[0033] The hay cutting mechanism 5 includes a base 501. Inside the base 501, a housing 502 is installed. An inspection opening is provided at one end of the housing 502, and a movable cover 507 is hinged inside the inspection opening. One side of the top of the housing 502 is fixedly communicated with a discharge pipe 508. The top of the discharge pipe 508 is fixedly communicated with a discharge port. One side of the housing 502 is rotatably connected to a transmission shaft. One end of the transmission shaft is fixedly provided with a first pulley 509. One end of the base 501 is fixedly provided with a mounting plate 503. A third servo motor 504 is installed on the top of the mounting plate 503. The output end of the third servo motor 504 is fixedly provided with a second pulley. The second pulley and the first pulley 509 are connected by a transmission belt. One side of the base 501 is fixedly provided with a protective cover 505. And first rollers 506 are installed at the bottoms of both ends of the base 501. A fixed knife 512 is installed on one side inside the housing 502. The other end of the transmission shaft is fixedly provided with a cutter disc 510. A plurality of evenly distributed moving knives 511 are installed on the surface of one side of the cutter disc 510. And a plurality of evenly distributed auxiliary blades 513 are installed on the inner wall of the cutter disc 510. At the top of one side of the bracket 1, a control box is fixedly provided. Inside the control box, a switch panel is fixedly provided. On the surface of the switch panel, a first servo motor switch, a first stepping motor switch, a second stepping motor switch, an electric cylinder switch, a second servo motor switch, and a third servo motor switch are fixedly provided. The first servo motor 203, the first stepping motor 211, the second stepping motor 304, the electric cylinder 306, the second servo motor 403, and the third servo motor 504 are respectively electrically connected to an external power supply through the first servo motor switch, the first stepping motor switch, the second stepping motor switch, the electric cylinder switch, the second servo motor switch, and the third servo motor switch.

[0034] Working principle: When using this hay cutter, the operator puts the material along the direction of the combing mechanism 3. The material is put between the fixed roller 202 and the movable roller 206. After the material is conveyed, in the combing mechanism 3, the combing rod 311 is close to the pre-cutting mechanism 2. At this time, the electric cylinder 306 on the moving cross plate 305 drives the movable frame 307 to move downwards, so that the combing rod 311 falls on the material, and cooperates with the pre-cutting mechanism 2 to convey the material, which can retain the withered leaves and other plants on the material. After the material is separated from the combing rod 311, the second stepping motor 304 drives the third lead screw 302, so that the moving cross plate 305 moves away from the pre-cutting mechanism 2, and the impurities can be taken out.

[0035] In the pre-cutting mechanism 2, the operator can adjust according to the diameter of the plant. The first stepping motor 211 drives the first transmission sprocket 209, which in turn causes the first lead screw 208 to drive the movable side plate 205 to move, thereby changing the distance between the movable roller 206 and the fixed roller 202. At the same time, the operator drives the second lead screw 220 through the turntable, and then drives the movable block 221 to move, so that the fourth single-row sprocket 222 can tighten the first transmission chain. The first servo motor 203 drives the fixed roller 202. The first single-row sprocket 214 and the double-row sprocket 215 are connected by a second transmission chain to ensure that the two fixed rollers 202 rotate synchronously. The fourth single-row sprocket 222, the third single-row sprocket 219 and the double-row sprocket 215 are connected by a first transmission chain, which in turn drives the second gear 218 to rotate in the same direction. The second gear 218 acts on the first gear 216, so that the first gear 216 rotates in the opposite direction, and the two second single-row sprockets 217 rotate in the opposite direction, so that the two movable rollers 206 rotate in the opposite direction, and the movable roller 206 and the fixed roller 202 can cooperate to drive the material. At the same time, the rotating circular cutter 207 cuts the plant stalks;

[0036] After the material is processed, the second servo motor 403 on the conveying frame 401 drives the conveying roller, so that the conveyor belt 402 can convey the material. The connecting cone 404 on the conveyor belt 402 can act on the material to ensure stable material transportation. In the hay cutting mechanism 5, the third servo motor 504 drives the second pulley, which in turn drives the first pulley 509. The transmission shaft drives the cutter head 510 to rotate. The moving knife 511 and the fixed knife 512 cooperate to cut the material. The auxiliary blade 513 on the cutter head 510 can assist in cutting the material. When the cutter head 510 rotates, it can drive the material to be discharged through the discharge pipe 508, and the cutting of the material can be completed.

Claims

1. An efficient blade-type grass mower, comprising a bracket (1), a pre-cutting mechanism (2) being fixedly provided at the top of the bracket (1), a combing mechanism (3) being installed at one end of the pre-cutting mechanism (2), and a conveying mechanism (4) being installed at the other end of the pre-cutting mechanism (2), a grass mowing mechanism (5) being installed at one end of the conveying mechanism (4), and second rollers (6) being installed on both sides of the bracket (1), characterized in that: The pre-cutting mechanism (2) comprises a support (201), both sides of the inner wall of the support (201) are rotatably connected to fixed rollers (202), one end of one of the fixed rollers (202) is fixedly provided with a first single-row sprocket (214), and one end of the other fixed roller (202) is fixedly provided with a double-row sprocket (215), both sides of the top of the support (201) are fixedly provided with U-shaped frames (204), the inner wall of each of the U-shaped frames (204) is rotatably connected to a first lead screw (208), the outer wall of each of the first lead screws (208) is threadedly connected to a movable side plate (205), and two movable side plates (205) are rotatably connected between the two movable side plates (205). The movable roller (206) is provided with a plurality of evenly distributed circular cutters (207) fixedly disposed on the outer wall of each fixed roller (202) and the outer wall of each movable roller (206); a first gear (216) is fixedly disposed at one end of one of the movable rollers (206); a second single-row sprocket (217) is fixedly disposed at one end of the first gear (216) and at one end of the other movable roller (206); a second gear (218) is rotatably connected to the top of one side of one of the movable side plates (205); the second gear (218) is meshed with the first gear (216); and a third single-row sprocket (219) is fixedly disposed at one end of the second gear (218).

2. The high-efficiency cutter head type hay cutter according to claim 1, characterized in that: A work-shaped seat (212) is fixedly provided at one end of the support (201); a movable block (221) is inserted into a movable opening formed on one side of the work-shaped seat (212); a fourth single-row sprocket (222) is rotatably connected to one side of the movable block (221); and the fourth single-row sprocket (222), the third single-row sprocket (219) and the double-row sprocket (215) are connected in transmission via a first transmission chain.

3. An efficient cutter head type forage harvester according to claim 2, wherein: A first servo motor (203) is installed on one side of the support (201); an output end of the first servo motor (203) is fixedly connected to the other end of one of the fixed rollers (202); the first single-row sprocket (214) and the double-row sprocket (215) are connected via a second transmission chain; and the two second single-row sprockets (217) are connected via a third transmission chain.

4. An efficient cutter head type hay cutter according to claim 3, characterized in that: A first drive sprocket (209) is fixedly provided at the top end of each of the first lead screws (208). The two first drive sprockets (209) are connected by a fourth drive chain in an interlaced manner. A mounting seat (210) is fixedly provided on one side of the top end of the U-shaped frame (204). A first stepping motor (211) is mounted on the top end of the mounting seat (210). The output end of the first stepping motor (211) is fixedly connected to the top end of one of the first drive sprockets (209). Vertical rods (213) are fixedly provided on both sides of the top end of the I-shaped seat (212). A second lead screw (220) is rotatably connected to the inner wall of the movable opening. A movable block (221) is threadedly connected to the outer wall of the second lead screw (220), and a turntable is fixedly provided at one end of the second lead screw (220).

5. The high-efficiency cutter head type hay cutter according to claim 4, wherein: The carding mechanism (3) includes a U-shaped frame (301). Third lead screws (302) are rotatably connected to both sides of the inner wall of the U-shaped frame (301). A moving cross plate (305) is threadedly connected between the two third lead screws (302). An electric cylinder (306) is mounted on the top end of the moving cross plate (305). A movable frame (307) is fixedly provided at the output end of the electric cylinder (306). Fixed rings (308) are fixedly provided on both sides of the bottom end of the movable frame (307). A movable column (309) is inserted between the two fixed rings (308). A plurality of evenly distributed movable rings (310) are inserted on the outer wall of the movable column (309). A carding rod (311) is fixedly provided at the bottom end of each movable ring (310).

6. The high-efficiency cutter head type forage cutter according to claim 5, wherein: A second drive sprocket (303) is fixedly provided at one end of each of the third lead screws (302). The two second drive sprockets (303) are connected by a fifth drive chain in a driving manner. A second stepping motor (304) is mounted on one end of the U-shaped frame (301). The output end of the second stepping motor (304) is fixedly connected to the other end of one of the third lead screws (302). First hexagon socket head cap screws are threadedly connected to both sides of each fixed ring (308), and second hexagon socket head cap screws are threadedly connected to both sides of each movable ring (310).

7. An efficient cutter head type hay cutter according to claim 6, characterized in that: The conveying mechanism (4) includes a conveying frame (401). Conveyor rollers are rotatably connected to both sides of the inner wall of the conveying frame (401). A conveyor belt (402) is connected between the two conveyor rollers in a driving manner. A second servo motor (403) is mounted on one side of the conveying frame (401). The output end of the second servo motor (403) is fixedly connected to one end of one of the conveyor rollers. A plurality of evenly distributed connecting cones (404) are fixedly provided on the surface of the conveyor belt (402).

8. An efficient cutter head type hay cutter according to claim 7, characterized in that: The forage chopping mechanism (5) includes a base (501). A housing (502) is installed inside the base (501). An inspection opening is provided at one end of the housing (502). A movable cover (507) is hinged inside the inspection opening. A discharge pipe (508) is fixedly communicated with one side of the top end of the housing (502). The top end of the discharge pipe (508) is fixedly communicated with a discharge port. A transmission shaft is rotatably connected to one side of the housing (502). A first pulley (509) is fixedly provided at one end of the transmission shaft. An installation plate (503) is fixedly provided at one end of the base (501). A third servo motor (504) is installed on the top end of the installation plate (503). A second pulley is fixedly provided at the output end of the third servo motor (504). The second pulley and the first pulley (509) are connected by a transmission belt. A protective cover (505) is fixedly provided on one side of the base (501). First rollers (506) are installed at the bottoms of both ends of the base (501).

9. An efficient cutter head type forage harvester according to claim 8, characterized in that: A fixed knife (512) is installed on one side inside the housing (502). A cutter disc (510) is fixedly provided at the other end of the transmission shaft. A plurality of evenly distributed moving knives (511) are installed on the surface of one side of the cutter disc (510). A plurality of evenly distributed auxiliary blades (513) are installed on the inner wall of the cutter disc (510).

10. An efficient cutter head type hay cutter according to claim 8, characterized in that: A control box is fixedly provided at the top of one side of the bracket (1). A switch panel is fixedly provided inside the control box. A first servo motor switch, a first stepping motor switch, a second stepping motor switch, an electric cylinder switch, a second servo motor switch, and a third servo motor switch are fixedly provided on the surface of the switch panel. The first servo motor (203), the first stepping motor (211), the second stepping motor (304), the electric cylinder (306), the second servo motor (403), and the third servo motor (504) are respectively electrically connected to an external power supply through the first servo motor switch, the first stepping motor switch, the second stepping motor switch, the electric cylinder switch, the second servo motor switch, and the third servo motor switch.

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