Self-propelled preposed ligusticum wallichii harvester

Abstract

A first hydraulic rod is arranged between the front end of a body rack and the lower end face of a front-end rack, the first hydraulic rod is hinged to the body rack, and a piston rod of the first hydraulic rod is hinged to the lower end face of the front-end rack; a shovel plate is arranged below the front end of the front-end rack, a seedling beating assembly is arranged above the shovel plate, a second hydraulic rod is arranged above the front end of the front-end rack, and a piston rod of the second hydraulic rod is connected with the seedling beating assembly; side plates are arranged on the left side face and the right side face of the front-end rack, a first conveying assembly is arranged between the side plates, a second conveying assembly is arranged at the upper end of the first conveying assembly and connected with the front-end rack, a third conveying assembly is arranged on the upper end face of the front-end rack, a soil screening assembly is arranged on the upper end face of the body rack, and a fourth conveying assembly is arranged at the rear end of the body rack. The ligusticum wallichii harvester has the advantages that mechanization and automation of ligusticum wallichii harvesting are achieved, multifunctional combined operation is achieved, and the harvesting efficiency of ligusticum wallichii is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of harvesting device technology, and in particular to a self-propelled front-mounted Ligusticum striatum harvester. Background Technology

[0002] Chuanxiong is a perennial herb, 40-60 cm tall. Its rhizome is well-developed, forming irregular, nodular, fist-shaped clumps with a strong aroma. The stem is erect, cylindrical, with longitudinal stripes, much-branched in the upper part, and the lower stem nodes are swollen and disc-shaped (Lingzi).

[0003] However, the harvesting of Ligusticum chuanxiong relies heavily on manual labor, which presents numerous problems. First, labor shortages in rural areas make it difficult to recruit enough workers. Second, manual harvesting is inefficient, especially for crops like Ligusticum chuanxiong that require precise harvesting times, making it difficult to ensure timely completion and affecting the quality of the medicinal material. Third, labor costs remain high. It is understood that the current cost of manual harvesting of Ligusticum chuanxiong is 500 to 850 yuan per mu. Growers are facing increasing pressure from rising labor costs.

[0004] This invention addresses these issues by proposing a self-propelled front-mounted Ligusticum striatum harvester, aiming to solve the aforementioned problems and enable the harvesting of Ligusticum striatum to be mechanized and automated, allowing for multi-functional combined operations and significantly improving the harvesting efficiency of Ligusticum striatum. Utility Model Content

[0005] To address the aforementioned shortcomings in the existing technology, this utility model provides a self-propelled front-mounted Ligusticum striatum harvester.

[0006] To achieve the aforementioned objectives, the technical solution adopted by this utility model is as follows:

[0007] Self-propelled front-mounted Sichuan lovage harvester, including frame,

[0008] The frame includes a main frame and a front frame. The main frame is equipped with a control box, and the front frame is hinged to the main frame via a connecting component.

[0009] A hydraulic rod is provided between the front end of the main frame and the lower end face of the front frame. The hydraulic rod is hinged to the main frame, and the piston rod of the hydraulic rod is hinged to the lower end face of the front frame.

[0010] A shovel plate is provided below the front end of the front frame, a seedling-beating assembly is provided above the shovel plate, and a hydraulic rod two is provided above the front end of the front frame. The piston rod of the hydraulic rod two is connected to the seedling-beating assembly.

[0011] The front frame has side plates on its left and right sides, and a first conveying component is provided between the side plates. A second conveying component is provided on the upper end of the first conveying component and is connected to the front frame. A third conveying component is provided on the upper surface of the front frame. The second conveying component conveys the chuanxiong (Ligusticum striatum) on the first conveying component to the third conveying component. A soil screening component is provided on the upper surface of the main frame. The third conveying component is connected to the soil screening component. A fourth conveying component is provided at the rear end of the main frame. One end of the fourth conveying component is connected to the soil screening component, and the other end is located above the baling hopper. The baling hopper is set on a storage box, and the storage box is connected to the main frame.

[0012] As an improvement, the connecting component includes a guide rod one, a guide rod two, a slider one, a slider two, and a transmission rod. The main frame has a guide rod one on its side, and a slider one is slidably connected to the guide rod one. The front frame has a guide rod two on its side, and a slider two is slidably connected to the guide rod two. The slider one and the slider two are connected by a transmission rod, and the two ends of the transmission rod are hinged to the slider one and the slider two, respectively.

[0013] As an improvement, the seedling-beating assembly includes a frame, a housing, a rotating shaft, and a motor. The housing is located between the frames, and the rotating shaft is rotatably connected inside the housing. Mounting plates are evenly arranged on the rotating shaft, and inclined beating plates are evenly arranged between the mounting plates. The motor is located on the side of the housing and drives the rotating shaft to rotate. The frame is connected to the piston rod of the hydraulic rod.

[0014] As an improvement, the first conveying assembly includes a drive shaft one and a drive shaft two, with sprockets one evenly arranged on the drive shaft one and the drive shaft two, and a chain one arranged on the sprockets one, with crossbars arranged between the chains one. The first conveying assembly is connected to the second conveying assembly through a power assembly.

[0015] As an improvement, the second conveying assembly includes a housing second and a feeding screw. The housing second is connected to the front frame, and the feeding screw is rotatably connected inside the housing second. A motor second is provided on one side of the housing second, and the motor second drives the feeding screw to rotate. The power assembly includes a gear first, a gear second, a connecting shaft first, and a connecting shaft second. A gear first is provided at one end of the feeding screw, and a gear second is provided on the transmission shaft first. The gear second and gear first mesh. A sprocket second is provided at the other end of the transmission shaft first. The connecting shaft first is located above the side plate, and a sprocket third and a sprocket fourth are provided on the connecting shaft first. The connecting shaft second is rotatably connected between the side plates. A sprocket fifth is provided at one end of the connecting shaft second, and a turn wheel is provided on the connecting shaft second. The sprocket second is connected to the sprocket third through a chain second, and the sprocket fourth is connected to the sprocket fifth through a chain third.

[0016] As an improvement, the third conveying assembly includes a housing three and a drive shaft three. The housing three is mounted on the main frame. The drive shaft three is rotatably connected to both ends inside the housing three. The drive shaft three is provided with a sprocket six. The sprocket six is ​​provided with a chain four. A conveying plate is provided between the chains four. The third conveying assembly is connected to the soil screening assembly and the fourth conveying assembly through the transmission assembly.

[0017] As an improvement, the soil screening assembly includes a mounting frame and a power ring. The mounting frame is equipped with a dual-shaft motor, the power ring is located at both ends of the mounting frame, and screen rods are evenly arranged between the power rings. A housing is provided above the mounting frame, and a power wheel is provided below the power ring and fits therewith. The dual-shaft motor drives the power wheel to rotate.

[0018] As an improvement, the fourth conveying assembly includes a housing five and a drive shaft four. The housing five is mounted on the main frame, and the drive shaft four is rotatably connected to both ends of the housing five. The drive shaft four is equipped with a sprocket seven, a chain five, and a push plate. The transmission assembly includes a dual-shaft motor two, sprocket eight, sprocket nine, sprocket ten, sprocket eleven, sprocket twelve, and sprocket thirteen. One output end of the dual-shaft motor two drives the drive shaft four to rotate, and the other output end of the dual-shaft motor two is equipped with a sprocket eight. Sprockets nine and ten are concentrically arranged, as are sprockets eleven and twelve. Sprocket thirteen is located at one end of the drive shaft three. Sprocket eight is connected to sprocket nine via chain five, sprocket ten is connected to sprocket eleven via chain six, and sprockets twelve and thirteen are connected via chain seven.

[0019] Compared to traditional technologies, the advantages of this utility model are:

[0020] 1. Multifunctional combined operation: transplanting, digging, sifting, conveying, and packaging are all completed in one go, making the operation process simple and efficient;

[0021] 2. High-frequency vibration screening device, high removal rate, low damage rate of medicinal materials, and guaranteed harvest quality;

[0022] 3. Modular design, easy to disassemble and maintain, making relocation and warehousing more worry-free;

[0023] 4. By cleverly linking the various processes together, a complete automated operation system is formed, which greatly improves harvesting efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the front-end frame of this utility model;

[0026] Figure 3 This is a schematic diagram of the main frame of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the fourth conveying component of this utility model;

[0028] Reference table for attached figures:

[0029] 1. Main frame; 2. Front frame; 3. Control box; 4. Hydraulic rod one; 5. Shovel plate; 6. Hydraulic rod two; 7. Side plate; 8. Packing hopper; 9. Storage box; 10. Guide rod one; 11. Guide rod two; 12. Slider one; 13. Slider two; 14. Transmission rod; 15. Frame; 16. Housing one; 17. Rotating shaft; 18. Motor one; 19. Mounting plate; 20. Beating plate; 21. Transmission shaft one; 22. Transmission shaft two; 23. Sprocket one; 24. Chain one; 25. Crossbar; 26. Housing two; 27. Feeding screw; 28. Motor two; 29. ​​Gear one; 30. Gear two; 31. Connecting shaft one; 32. Connecting shaft two; 33. Sprocket 2; 34. Sprocket 3; 35. Sprocket 4; 36. Sprocket 5; 37. Actuating wheel; 38. Chain 2; 39. Chain 3; 40. Drive shaft 3; 41. Sprocket 6; 42. Chain 4; 43. Conveyor plate; 44. Mounting frame; 45. Power ring; 46. Dual-shaft motor 1; 47. Screen rod; 48. Housing 4; 49. Power wheel; 50. Housing 5; 51. Drive shaft 4; 52. Sprocket 7; 53. Chain 5; 54. Push plate; 55. Dual-shaft motor 2; 56. Sprocket 8; 57. Sprocket 9; 58. Sprocket 10; 59. Sprocket 11; 60. Sprocket 12; 61. Sprocket 13; 62. Chain 5; 63. Chain 6; 64. Chain 7. Detailed Implementation

[0030] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0031] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0032] To make the content of this utility model easier to understand, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model.

[0033] Combined with appendix Figure 1 The frame includes a main frame 1 and a front frame 2. The main frame 1 is equipped with a control box 3, and the front frame 2 is hinged to the main frame 1 through a connecting component.

[0034] A hydraulic rod 4 is provided between the front end of the main frame 1 and the lower end face of the front frame 2. The hydraulic rod 4 is hinged to the main frame 1, and the piston rod of the hydraulic rod 4 is hinged to the lower end face of the front frame 2.

[0035] The connecting components include a guide rod 10, a guide rod 21, a slider 12, a slider 23, and a transmission rod 14. The main frame 1 has a guide rod 10 on its side, and a slider 12 is slidably connected to the guide rod 10. The front frame 2 has a guide rod 21 on its side, and a slider 23 is slidably connected to the guide rod 21. The slider 12 and slider 23 are connected by the transmission rod 14, and the two ends of the transmission rod 14 are hinged to the slider 12 and slider 23, respectively.

[0036] During use, the piston rod of hydraulic rod 4 extends and retracts, causing the front frame 2 to rotate, thereby adjusting the angle of the front frame 2. During the rotation of the front frame 2, slider 12 slides on guide rod 10, slider 2 13 slides on guide rod 2 11, and the transmission rod 14, which is hinged to slider 12 and slider 2 13, rotates to provide stable support for the front frame 2.

[0037] Combined with appendix Figure 1 A seedling-beating assembly is provided above the shovel plate 5, and a hydraulic rod 6 is provided above the front end of the front frame 2. The piston rod of the hydraulic rod 6 is connected to the seedling-beating assembly.

[0038] The piston rod of hydraulic rod 26 extends and retracts to adjust the height of the seedling-planting assembly.

[0039] Combined with appendix Figure 1-2 The front frame 2 has a shovel plate 5 at its lower front end. The seedling-beating assembly includes a frame 15, a housing 16, a rotating shaft 17, and a motor 18. The housing 16 is located between the frames 15. The rotating shaft 17 is rotatably connected inside the housing 16. Mounting plates 19 are evenly arranged on the rotating shaft 17. The beating plates 20 are evenly arranged at an incline between the mounting plates 19. The motor 18 is located on the side of the housing 16. The motor 18 drives the rotating shaft 17 to rotate. The frame 15 is connected to the piston rod of the hydraulic rod 6.

[0040] The shovel 5 scoops out the Sichuan lovage, the motor 18 drives the rotating shaft 17 to rotate, the rotating shaft 17 drives the mounting plate 19 to rotate, the mounting plate 19 drives the hitting plate 20 to move, and the hitting plate 20 hits the seedlings.

[0041] Combined with appendix Figure 2 The front frame 2 has side plates 7 on its left and right sides, a first conveying assembly is provided between the side plates 7, a second conveying assembly is provided on the upper end of the first conveying assembly, and the second conveying assembly is connected to the front frame 2;

[0042] The first conveying assembly includes a drive shaft 21 and a drive shaft 22. Sprockets 23 are evenly arranged on the drive shaft 21 and the drive shaft 22. Chains 24 are arranged on the sprockets 23. Crossbars 25 are arranged between the chains 24. The first conveying assembly is connected to the second conveying assembly through a power assembly.

[0043] The second conveying assembly includes a housing 26 and a feeding screw 27. The housing 26 is connected to the front frame 2. The feeding screw 27 is rotatably connected inside the housing 26. A motor 28 is provided on one side of the housing 26, and the motor 28 drives the feeding screw 27 to rotate. The power assembly includes a gear 29, a gear 30, a connecting shaft 31, and a connecting shaft 32. A gear 29 is provided at one end of the feeding screw 27, and a gear 30 is provided on the connecting shaft 31. 0 meshes with gear 29. The other end of the drive shaft 21 is provided with sprocket 23. The connecting shaft 31 is located above the side plate 7. The connecting shaft 31 is provided with sprocket 34 and sprocket 45. The connecting shaft 22 is rotatably connected between the side plates 7. One end of the connecting shaft 22 is provided with sprocket 536. The connecting shaft 22 is provided with a pull wheel 37. Sprocket 23 is connected to sprocket 34 through chain 238. Sprocket 435 is connected to sprocket 536 through chain 39.

[0044] Motor 28 rotates, driving the feeding screw 27 to rotate. The feeding screw 27 drives gear 29 to rotate, which in turn drives gear 30, which meshes with it. Gear 30 drives drive shaft 21 to rotate, which in turn drives sprocket 23 to rotate. Sprocket 23 drives chain 24 to move, and chain 24 moves crossbar 25. During the rotation of drive shaft 21, sprocket 23 rotates. Sprocket 22 drives sprockets 34, 35, and connecting shaft 32 via chain 38. Sprocket 35 drives sprocket 36 via chain 39. Sprocket 36 drives connecting shaft 32 to rotate, and connecting shaft 32 drives actuating wheel 37 to rotate. The chuanxiong (Ligusticum striatum) is then fed to the third conveying assembly via crossbar 25 and feeding screw 27.

[0045] Combined with appendix Figure 3 The third conveying assembly includes a housing three and a drive shaft three 40. The housing three is mounted on the main frame 1. The drive shaft three 40 is rotatably connected to both ends of the housing three. The drive shaft three 40 is provided with a sprocket six 41. The sprocket six 41 is provided with a chain four 42. The conveying plate 43 is provided between the chains four 42. The third conveying assembly is connected to the soil screening assembly and the fourth conveying assembly through the transmission assembly.

[0046] The soil screening assembly includes a mounting frame 44 and a power ring 45. The mounting frame 44 is equipped with a dual-shaft motor 46. The power ring 45 is located at both ends of the mounting frame 44. Screen rods 47 are evenly arranged between the power rings 45. A housing 48 is provided above the mounting frame 44. A power wheel 49 is provided below the power ring 45 and fits therewith. The dual-shaft motor 46 drives the power wheel 49 to rotate.

[0047] The fourth conveying assembly includes a housing 50 and a drive shaft 51. The housing 50 is mounted on the main frame 1. The drive shaft 51 is rotatably connected to both ends of the housing 50. A sprocket 7 52 is mounted on the drive shaft 51. A chain 53 is mounted on the sprocket 7 52. A push plate 54 is mounted on the chain 53. The transmission assembly includes a dual-shaft motor 55, a sprocket 8 56, a sprocket 9 57, a sprocket 10 58, a sprocket 11 59, a sprocket 12 60, and a sprocket 13 61. The dual-shaft motor 55... One output end of the 5 drives the transmission shaft 41 to rotate. The other output end of the dual-shaft motor 2 55 is provided with a sprocket 8 56. Sprockets 9 57 and 10 58 are concentrically arranged. Sprockets 11 59 and 12 60 are concentrically arranged. Sprocket 13 61 is provided at one end of the transmission shaft 3 40. Sprocket 8 56 is connected to sprocket 9 57 through chain 5 53. Sprocket 10 58 is connected to sprocket 11 59 through chain 6 63. Sprocket 12 60 and sprocket 13 61 are connected through chain 7 64.

[0048] After the Ligusticum striatum enters the third conveying assembly, the dual-shaft motor 255 drives the sprocket 856 to rotate. The sprocket 856 drives the sprocket 957 to rotate via the chain 553. The sprocket 957 drives the sprocket 1058 to rotate. The sprocket 1058 drives the sprocket 1159 to rotate via the chain 63. The sprocket 1159 drives the sprocket 1260 to rotate. The sprocket 1260 drives the sprocket 1361 to rotate via the chain 764. The sprocket 1361 drives the drive shaft 340 to rotate. The drive shaft 340 drives the sprocket 641 to rotate. The sprocket 641 drives the chain 42 to move. The movement of the chain 42 drives the conveying plate 43 to move, thereby sending the Ligusticum striatum into the soil screening assembly.

[0049] The dual-shaft motor 46 rotates, driving the power wheel 49 to rotate, which in turn drives the power ring 45 to rotate. The soil on the Sichuan lovage falls between the screen rods 47, and the Sichuan lovage with the soil sieved enters the fourth conveyor assembly.

[0050] The dual-shaft motor 255 drives the transmission shaft 451 to rotate, the transmission shaft 451 drives the sprocket 752 to rotate, the sprocket 752 drives the chain 553 to move, and the chain 553 drives the push plate 54 to move, sending the Sichuan lovage to the packaging hopper 8.

[0051] The above description is only a preferred embodiment of this utility model patent and is not intended to limit this utility model patent. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this utility model patent should be included within the protection scope of this utility model patent.

Claims

1. A self-propelled front-mounted chuanxiong harvester, including a frame, characterized in that: The frame includes a main frame (1) and a front frame (2). The main frame (1) is equipped with a control box (3). The front frame (2) is hinged to the main frame (1) through a connecting component. A hydraulic rod (4) is provided between the front end of the main frame (1) and the lower end face of the front frame (2). The hydraulic rod (4) is hinged to the main frame (1), and the piston rod of the hydraulic rod (4) is hinged to the lower end face of the front frame (2). The front frame (2) has a shovel plate (5) below the front end, a seedling-beating assembly above the shovel plate (5), and a hydraulic rod (6) above the front end of the front frame (2). The piston rod of the hydraulic rod (6) is connected to the seedling-beating assembly. The front frame (2) has side plates (7) on its left and right sides. A first conveying component is provided between the side plates (7). A second conveying component is provided on the upper end of the first conveying component. The second conveying component is connected to the front frame (2). A third conveying component is provided on the upper surface of the front frame (2). The second conveying component sends the chuanxiong on the first conveying component to the third conveying component. A soil screening component is provided on the upper surface of the main frame (1). The third conveying component is connected to the soil screening component. A fourth conveying component is provided at the rear end of the main frame (1). One end of the fourth conveying component is connected to the soil screening component, and the other end is located above the baling hopper (8). The baling hopper (8) is set on the storage box (9). The storage box (9) is connected to the main frame (1).

2. The self-propelled front-mounted Ligusticum striatum harvester according to claim 1, characterized in that: The connecting components include a guide rod 1 (10), a guide rod 2 (11), a slider 1 (12), a slider 2 (13), and a transmission rod (14). The main frame (1) has a guide rod 1 (10) on its side, and a slider 1 (12) is slidably connected to the guide rod 1 (10). The front frame (2) has a guide rod 2 (11) on its side, and a slider 2 (13) is slidably connected to the guide rod 2 (11). The slider 1 (12) and slider 2 (13) are connected by a transmission rod (14), and the two ends of the transmission rod (14) are hinged to the slider 1 (12) and slider 2 (13) respectively.

3. The self-propelled front-mounted Ligusticum striatum harvester according to claim 1, characterized in that: The seedling-beating assembly includes a frame (15), a housing (16), a rotating shaft (17), and a motor (18). The housing (16) is located between the frame (15). The rotating shaft (17) is rotatably connected inside the housing (16). Mounting plates (19) are evenly arranged on the rotating shaft (17). The beating plates (20) are evenly arranged at an inclination between the mounting plates (19). The motor (18) is located on the side of the housing (16). The motor (18) drives the rotating shaft (17) to rotate. The frame (15) is connected to the piston rod of the hydraulic rod (6).

4. The self-propelled front-mounted Ligusticum striatum harvester according to claim 1, characterized in that: The first conveying assembly includes a drive shaft one (21) and a drive shaft two (22). A sprocket one (23) is evenly provided on the drive shaft one (21) and the drive shaft two (22). A chain one (24) is provided on the sprocket one (23). A crossbar (25) is provided between the chains one (24). The first conveying assembly is connected to the second conveying assembly through a power assembly.

5. The self-propelled front-mounted Ligusticum striatum harvester according to claim 4, characterized in that: The second conveying assembly includes a housing (26) and a feeding screw (27). The housing (26) is connected to the front frame (2). The feeding screw (27) is rotatably connected inside the housing (26). A motor (28) is provided on one side of the housing (26). The motor (28) drives the feeding screw (27) to rotate. The power assembly includes a gear (29), a gear (30), a connecting shaft (31), and a connecting shaft (32). A gear (29) is provided at one end of the feeding screw (27). A gear (30) is provided on the first transmission shaft (21). The transmission shaft 1 (21) meshes with gear 1 (29). The other end of the transmission shaft 1 (21) is provided with sprocket 2 (33). The connecting shaft 1 (31) is located above the side plate (7). The connecting shaft 1 (31) is provided with sprocket 3 (34) and sprocket 4 (35). The connecting shaft 2 (32) is rotatably connected between the side plates (7). One end of the connecting shaft 2 (32) is provided with sprocket 5 (36). The connecting shaft 2 (32) is provided with a pull wheel (37). The sprocket 2 (33) is connected to sprocket 3 (34) through chain 2 (38). The sprocket 4 (35) is connected to sprocket 5 (36) through chain 3 (39).

6. The self-propelled front-mounted Ligusticum striatum harvester according to claim 1, characterized in that: The third conveying assembly includes a housing three and a drive shaft three (40). The housing three is mounted on the main frame (1). The two ends of the housing three are rotatably connected to the drive shaft three (40). The drive shaft three (40) is provided with a sprocket six (41). The sprocket six (41) is provided with a chain four (42). The chain four (42) is provided between the conveying plates (43). The third conveying assembly is connected to the soil screening assembly and the fourth conveying assembly through the transmission assembly.

7. The self-propelled front-mounted Ligusticum striatum harvester according to claim 6, characterized in that: The soil screening assembly includes a mounting frame (44) and a power ring (45). The mounting frame (44) is equipped with a dual-shaft motor (46). The power ring (45) is located at both ends of the mounting frame (44). Screen rods (47) are evenly arranged between the power rings (45). A housing (48) is provided above the mounting frame (44). A power wheel (49) is provided below the power ring (45) and fits against it. The dual-shaft motor (46) drives the power wheel (49) to rotate.

8. The self-propelled front-mounted Ligusticum striatum harvester according to claim 6, characterized in that: The fourth conveying assembly includes a housing five (50) and a drive shaft four (51). The housing five (50) is mounted on the main frame (1). The two ends of the housing five (50) are rotatably connected to the drive shaft four (51). The drive shaft four (51) is provided with a sprocket seven (52). The sprocket seven (52) is provided with a chain five (53). The chain five (53) is provided with a push plate (54). The transmission assembly includes a dual-shaft motor two (55), a sprocket eight (56), a sprocket nine (57), a sprocket ten (58), a sprocket eleven (59), a sprocket twelve (60), and a sprocket thirteen (61). The dual-shaft motor two ( One output end of the dual-shaft motor 2 (55) drives the transmission shaft 4 (51) to rotate. The other output end of the dual-shaft motor 2 (55) is provided with sprocket 8 (56). Sprocket 9 (57) and sprocket 10 (58) are concentrically arranged. Sprocket 11 (59) and sprocket 12 (60) are concentrically arranged. Sprocket 13 (61) is provided at one end of the transmission shaft 3 (40). Sprocket 8 (56) is connected to sprocket 9 (57) through chain 5 (53). Sprocket 10 (58) is connected to sprocket 11 (59) through chain 6 (63). Sprocket 12 (60) and sprocket 13 (61) are connected through chain 7 (64).

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