Longitudinal rice seedbed raising machine

Abstract

A rice seedbed longitudinal seedling raising machine relates to the technical field of rice seedbed. In order to solve the problem that the transverse reciprocating frequency of the seedling raising machine is more, the repeated soil sowing area is larger, not only the soil is wasted, but also the staying frequency is more, so that the seedling raising efficiency is lower. The utility model discloses a track group, support, storage box, first conveying mechanism, stirring box, flat soil box and second conveying mechanism, the track group is along the first direction setting, the first direction is the length direction of the greenhouse, in this embodiment, the track group includes two tracks, the support is slidably installed on the track group, the support drives the storage box, the stirring box and the flat soil box to move along the length direction of the greenhouse, and the soil and the fertilizer are evenly spread in the seedbed. Since the moving direction is the length direction of the greenhouse, the working area of single stroke is larger, and the reciprocating frequency is less, so that the repeated soil sowing area is reduced, the soil waste is avoided, and the seedling raising efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of rice seedbed technology, specifically to a longitudinal rice seedling raising machine. Background Technology

[0002] In the northeastern region, rice seedlings are generally cultivated in greenhouses, which are divided into two symmetrical areas with a passageway between them. Seedbeds are arranged in the greenhouse first, and then soil is sown and seeds are scattered into the seedbeds. After the rice seedlings grow, they are then transferred to the paddy fields.

[0003] In existing technologies, in order to increase the speed of seedling raising, seedling raising machines are generally used to complete the sowing and seeding. Two tracks need to be laid in the passageway. First, the seedling raising machine moves back and forth along the width of the greenhouse. Then, the seedling raising machine moves along the track to the next area and moves back and forth along the width of the greenhouse again. The above steps are repeated continuously to complete the seedling raising.

[0004] However, the above process involves many horizontal repetitions and covers a large area with repeated soil sowing, which not only wastes soil but also results in low seedling efficiency due to the numerous repetitions. Utility Model Content

[0005] The purpose of this invention is to solve the problem that rice seedling machines require numerous lateral reciprocating motions, resulting in large areas of repeated soil sowing, which not only wastes soil but also leads to low seedling efficiency due to the numerous pauses. Therefore, this invention provides a longitudinal rice seedling raising machine for rice seedbeds.

[0006] The technical solution of this utility model is: a longitudinal rice seedling raising machine for rice seedbeds, comprising: a track group arranged along a first direction, wherein the first direction is the length direction of the greenhouse;

[0007] A bracket is slidably mounted on the track assembly, and the bracket is connected to a first driving member, which is used to drive the bracket to slide along the track assembly;

[0008] The storage bin has a soil storage chamber and a fertilizer storage chamber, wherein the soil storage chamber is used to store soil and the fertilizer storage chamber is used to store fertilizer;

[0009] A first conveying mechanism is provided at the outlet of the soil storage chamber and the fertilizer storage chamber. The first conveying mechanism is connected to a second driving component, which is used to drive the first conveying mechanism to transport soil and fertilizer into the mixing tank.

[0010] A mixing tank is installed at the material discharge end of the first conveying mechanism. The mixing tank is equipped with a rotatable mixing blade, which is used to mix the soil and fertilizer evenly.

[0011] A leveling box is installed on the bracket and positioned below the outlet of the mixing tank. A spiral auger is rotatably connected inside the leveling box. The spiral auger is connected to a third driving component, which is used to drive the spiral auger to evenly disperse the soil and fertilizer.

[0012] The second conveying mechanism is located at the outlet of the leveling box. The second conveying mechanism is connected to the fourth driving component, which is used to drive the second conveying mechanism to evenly spread soil and fertilizer on the seedbed.

[0013] Furthermore, the leveling box is slidably mounted on the support along a second direction, which is perpendicular to the first direction, and the storage box is rotatably mounted on the support.

[0014] Furthermore, the support has two guide rails spaced apart, and the two sides of the leveling box are respectively rotatably connected with guide wheels for rolling cooperation with the guide rails;

[0015] The bracket has a rectangular frame, and the middle positions of the four sides of the rectangular frame are respectively rotatably connected to limiters. The limiters include horizontally arranged rollers and vertically arranged discs.

[0016] The storage bin is connected to an annular body, the bottom surface of which is slidably engaged with the four rollers, and the outer surface of which is slidably engaged with the inner surface of the four discs.

[0017] Furthermore, the storage bin includes a first box and a second box that are fixedly connected, the soil storage chamber is disposed in the first box, and the fertilizer storage chamber is disposed in the second box;

[0018] The bottom of the soil storage cavity is provided with an upwardly protruding triangular plate, and a vibrating element is connected to the bottom surface of the triangular plate.

[0019] Furthermore, the opening of the fertilizer storage chamber gradually decreases, and a rotatable feeding roller is connected at the smallest opening. The outer surface of the feeding roller has uniformly distributed storage grooves, and the fertilizer storage chamber is opened by rotating the feeding roller.

[0020] Furthermore, it also includes: a fifth motor, mounted on the first support plate, the drive shaft of the fifth motor being connected to the feeding roller and the stirring blade via a first transmission component, the fifth motor being used to drive the feeding roller and the stirring blade to rotate synchronously.

[0021] Furthermore, a plurality of rolling elements are rotatably connected inside the bracket, and the plurality of rolling elements are rotatably mounted on the track assembly. Each rolling element has a rectangular groove extending through both sides. The first driving component is a first motor mounted on one side of the bracket, and the drive shaft of the first motor is a rectangular shaft inserted into the rectangular groove of the rolling element.

[0022] Furthermore, the first conveying mechanism is a first conveyor belt, and the bottom of the storage box is connected to a first support plate for rotating connection with two first conveying rollers in the first conveyor belt. The second driving component is a second motor mounted on the first support plate, and the drive shaft of the second motor is connected to the first conveying rollers through a coupling.

[0023] Furthermore, the third driving component is a third motor installed on the leveling box, and the drive shaft of the third motor is fixedly connected to the central shaft of the auger via a coupling.

[0024] Furthermore, the second conveying mechanism is a second conveyor belt, and the bottom of the leveling box is connected to a second support plate for rotating connection with two second conveying rollers in the second conveyor belt. The fourth driving component is a fourth motor installed on the leveling box, and the drive shaft of the fourth motor is connected to the second conveying rollers through a second transmission component.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] 1. The rice seedling bed longitudinal seedling raising machine provided by this utility model has a support frame that drives the storage box, mixing box and leveling box to move along the length of the greenhouse, so as to evenly spread soil and fertilizer in the seedling bed. Since the moving direction is along the length of the greenhouse, the working area of ​​a single stroke is larger and the number of reciprocating movements is less, which reduces the area of ​​repeated sowing, avoids soil waste, and improves seedling raising efficiency.

[0027] 2. The rice seedling raising machine for longitudinal seedling beds provided by this utility model allows the leveling box to move along the second direction when the greenhouse is wide, thereby increasing the sowing area. The rotating storage box can prevent interference with the arc-shaped part of the greenhouse edge, ensuring the smooth sowing process. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 yes Figure 1 A diagram of the other side;

[0030] Figure 3 yes Figure 1 Exploded view;

[0031] Figure 4 yes Figure 1 Enlarged view of the Zhongping soil box;

[0032] Figure 5 yes Figure 1 Enlarged view of the mixing tank;

[0033] Figure 6 yes Figure 1 Exploded view of a portion of the map;

[0034] Figure 7 yes Figure 2 Enlarged view of the middle triangle ruler;

[0035] Figure 8 yes Figure 1 Schematic diagram of the internal structure of the second box in the middle;

[0036] Figure 9 yes Figure 2 Enlarged view of region A in the middle;

[0037] Figure 10 yes Figure 2 Enlarged view of region B in the middle;

[0038] Figure 11 yes Figure 3 A magnified view of region C in the middle.

[0039] In the diagram: 1. Track assembly; 2. Support frame; 3. First drive unit; 4. Storage bin; 5. Soil storage chamber; 6. Fertilizer storage chamber; 7. First conveying mechanism; 8. Second drive unit; 9. Mixing box; 10. Mixing blade; 11. Leveling box; 12. Spiral auger; 13. Third drive unit; 14. Second conveying mechanism; 15. Fourth drive unit; 16. Guide rail; 17. Guide wheel; 18. Rectangular frame; 19. Limiting component; 20. Roller; 21. Disc; 22. Ring body; 23. First housing; 24. Second housing; 25. Triangular plate; 26. Vibrating component; 27. Feeding roller; 28. Fifth motor; 29. ​​First transmission component; 30. Rolling element; 31. First conveying roller; 32. First support plate; 33. Second conveying roller; 34. Second support plate; 35. Second transmission component. Detailed Implementation

[0040] Specific implementation method one: Combining Figures 1 to 3This embodiment describes a system comprising a track assembly 1, a support 2, a storage bin 4, a first conveying mechanism 7, a mixing tank 9, a leveling box 11, and a second conveying mechanism 14. The track assembly 1 is arranged along a first direction, which is the length direction of the greenhouse. In this embodiment, the track assembly 1 includes two tracks. The support 2 is slidably mounted on the track assembly 1 and is connected to a first driving member 3. The first driving member 3 drives the support 2 to slide along the track assembly 1. The support 2 includes a movable part located on the track assembly 1 and a supporting part connected between the movable parts. The storage bin 4 has a soil storage chamber 5 and a fertilizer storage chamber 6. The soil storage chamber 5 is used to store soil, and the fertilizer storage chamber 6 is used to store fertilizer. The first conveying mechanism 7 is located at the outlet of the soil storage chamber 5 and the fertilizer storage chamber 6. The first conveying mechanism 7 is connected to the second driving member 14. The system is connected in section 8. The second driving component 8 drives the first conveying mechanism 7 to transport soil and fertilizer into the mixing tank 9. The mixing tank 9 is located at the material discharge end of the first conveying mechanism 7. The mixing tank 9 is equipped with a rotatable mixing blade 10, which is used to mix the soil and fertilizer evenly. The leveling tank 11 is installed on the support 2 and located below the outlet of the mixing tank 9. The leveling tank 11 is rotatably connected to a spiral auger 12. The spiral auger 12 is connected to a third driving component 13, which is used to drive the spiral auger 12 to evenly disperse the soil and fertilizer. The second conveying mechanism 14 is located at the outlet of the leveling tank 11. The second conveying mechanism 14 is connected to a fourth driving component 15, which is used to drive the second conveying mechanism 14 to evenly spread the soil and fertilizer on the seedbed.

[0041] In this embodiment, the rice seedling bed longitudinal seedling machine uses a support frame 2 to move the material storage box 4, mixing box 9, and leveling box 11 along the length of the greenhouse, evenly spreading soil and fertilizer in the seedling bed. Since the movement direction is along the length of the greenhouse, the working area of ​​a single trip is larger, and the number of back-and-forth movements is less, reducing the area of ​​repeated soil sowing, avoiding soil waste, and improving seedling efficiency.

[0042] Specific Implementation Method Two: Combining Figures 1 to 3 This embodiment differs from specific embodiment one in that the leveling box 11 is slidably mounted on the support 2 along a second direction, which is perpendicular to the first direction. The storage box 4 is rotatably mounted on the support 2. When the greenhouse is wide, the leveling box 11 can move along the second direction, thereby increasing the sowing area. The rotatable arrangement of the storage box 4 avoids interference with the curved parts of the greenhouse edge, ensuring smooth sowing. As an alternative embodiment, when the greenhouse is narrow, the storage box 4 and the leveling box 11 can be fixedly mounted on the support 2, and sowing can be carried out in a fixed direction. Other components and connections are the same as in specific embodiment one.

[0043] Specific implementation method three: combining with 3, Figure 9 This embodiment differs from Specific Embodiment Two in that the support 2 has two spaced guide rails 16, and the two sides of the leveling box 11 are rotatably connected to guide wheels 17 for rolling cooperation with the guide rails 16. The leveling box 11 is located between the two guide rails 16, and the sliding of the leveling box 11 is achieved through the cooperation of the guide rails 16 and the guide wheels 17. The support 2 has a rectangular frame 18, and the middle positions of the four sides of the rectangular frame 18 are rotatably connected to limit members 19. The limit members 19 include horizontally arranged rollers 20 and vertically arranged discs 21. The storage box 4 is connected to an annular body 22. The bottom surface of the annular body 22 is slidably engaged with the four rollers 20, and the outer surface of the annular body 22 is slidably engaged with the inner surface of the four discs 21. The annular body 22 is limited by the four limit members 19, thereby realizing the rotation of the storage box 4. Moreover, the contact method is point contact, the contact area is smaller, the friction force generated is also smaller, and the rotation is more convenient. As an alternative implementation, the limiting member 19 can also be a ring structure, with the ring body 22 inserted into the ring structure, and the two in surface contact, thereby realizing the rotation of the storage box 4. Other components and connections are the same as in specific implementation method two.

[0044] Specific implementation method four: Combination Figure 1 , Figure 2 , Figure 7 This embodiment differs from specific embodiment one in that the storage bin 4 includes a first box 23 and a second box 24 fixedly connected. The soil storage chamber 5 is disposed within the first box 23, and the fertilizer storage chamber 6 is disposed within the second box 24. The bottom of the soil storage chamber 5 has an upwardly protruding triangular plate 25, and a vibrating element 26 is connected to the bottom surface of the triangular plate 25. Through the cooperation of the triangular plate 25 and the vibrating element 26, the soil entering the soil storage chamber 5 can be more dispersed, breaking up soil clods with high moisture content, resulting in better sowing effect. In this embodiment, the vibrating element 26 can be a vibrating motor. As an alternative embodiment, the storage bin 4 may also have only one box, with the soil storage chamber 5 and the fertilizer storage chamber 6 separated within one box. Other components and connections are the same as in specific embodiment one.

[0045] Specific Implementation Method Five: Combining Figure 8This embodiment differs from specific embodiment four in that the opening of the fertilizer storage chamber 6 gradually decreases, and a rotatable feeding roller 27 is connected to the smallest opening. The outer surface of the feeding roller 27 has uniformly distributed storage grooves (not shown in the figure). In this embodiment, the storage grooves are rectangular grooves, and there are many of them. The fertilizer storage chamber 6 is opened by rotating the feeding roller 27. The fertilizer in the fertilizer storage chamber 6 first falls into the storage grooves. As the feeding roller 27 rotates, the fertilizer will fall from the storage grooves into the mixing tank 9 under the action of gravity. When the feeding roller 27 is stationary, the fertilizer storage chamber 6 is in a closed state, and the fertilizer will not fall downwards. As an alternative embodiment, the storage grooves can also be long strip grooves with multiple grooves evenly distributed along the circumference. Other components and connections are the same as in specific embodiment four.

[0046] Specific Implementation Method Six: Combination Figure 2 , Figure 5 , Figure 10 This embodiment differs from specific embodiment five in that it further includes a fifth motor 28, mounted on the first support plate 32. The drive shaft of the fifth motor 28 is connected to the feeding roller 27 and the mixing blade 10 via a first transmission component 29. The fifth motor 28 drives the feeding roller 27 and the mixing blade 10 to rotate synchronously. With the activation of the fifth motor 28, the mixing and fertilizer application processes are performed simultaneously, ensuring that the fertilizer is always in a mixing state, resulting in more thorough mixing of the fertilizer and the soil. In this embodiment, the first transmission component 29 is a belt. As an alternative embodiment, the first transmission component 29 can also be a chain, gear set, linkage mechanism, etc. Other components and connections are the same as in specific embodiment five.

[0047] Specific implementation method seven: Combination Figure 6 This embodiment differs from specific embodiment one in that multiple rolling elements 30 are rotatably connected within the bracket 2. These rolling elements 30 are rotatably mounted on the track assembly 1. Each rolling element 30 has a rectangular slot extending through both sides. The first driving component 3 is a first motor mounted on one side of the bracket 2. The drive shaft of the first motor is a rectangular shaft inserted into the rectangular slot of each rolling element 30. The first motor can directly drive the rolling elements 30 to rotate without the need for a coupling. There is only one first motor, which drives only one rolling element 30, thereby moving the entire bracket 2. As an alternative embodiment, there can be multiple first motors, each driving one rolling element 30, or one first motor can drive multiple rolling elements 30 to rotate via a belt, chain, gear set, or other mechanism. Other components and connections are the same as in specific embodiment one.

[0048] Specific implementation method eight: Combination Figure 3 , Figure 11 This embodiment differs from specific embodiment one in that the first conveying mechanism 7 is a first conveyor belt, and the bottom of the storage bin 4 is connected to a first support plate 32 for rotatably connecting with two first conveyor rollers 31 within the first conveyor belt. The second driving component 8 is a second motor mounted on the first support plate 32, and the drive shaft of the second motor is connected to the first conveyor rollers 31 via a coupling. In this embodiment, there are two symmetrically distributed first support plates 32, installed below the soil storage cavity 5. The two first support plates 32 ensure that the second motor can smoothly drive the first conveyor belt, thereby achieving the quantity of soil and fertilizer. As an alternative embodiment, the first support plate 32 can also be a single unit, its shape being a U-shaped plate, with the blank area in the middle used to accommodate the first conveyor belt. Other components and connections are the same as in the specific embodiment.

[0049] Specific Implementation Method Nine: Combining Figure 1 This embodiment differs from specific embodiment one in that the third driving component 13 is a third motor mounted on the leveling box 11. The drive shaft of the third motor is fixedly connected to the central shaft of the auger 12 via a coupling. The third motor directly drives the auger 12 to rotate, thereby dispersing the soil evenly and preventing soil concentration. The auger 12 requires greater torque, and the direct drive method of the third motor reduces energy loss and provides a better driving effect. As an alternative embodiment, the third motor can also drive the auger 12 via a chain, gear set, or other means. Other components and connections are the same as in specific embodiment one.

[0050] Specific Implementation Method Ten: Combining Figure 4 This embodiment differs from specific embodiment one in that the second conveying mechanism 14 is a second conveyor belt, and the bottom of the leveling box 11 is connected to a second support plate 34 for rotatably connecting with two second conveying rollers 33 within the second conveyor belt. The fourth driving component 15 is a fourth motor mounted on the leveling box 11, and the drive shaft of the fourth motor is connected to the second conveying rollers 33 via a second transmission component 35. In this embodiment, the second transmission component 35 is a belt, and there are two symmetrically distributed second support plates 34. The transmission of the second conveyor belt is achieved through the two second support plates 34, and the soil output speed is adjusted by changing the rotation of the fourth motor. As an alternative embodiment, the second transmission component 35 can also be a chain, gear set, linkage mechanism, etc. Other components and connections are the same as any one of specific embodiments one to nine.

[0051] How to use this implementation method:

[0052] Start the first motor, which drives the rolling element 30 to rotate. The rolling element 30 drives the support 2 to slide along the track group 1. The support 2 drives the storage box 4, the mixing box 9, and the leveling box 11 to move synchronously.

[0053] Start the second motor, which drives the first conveyor roller 31 to rotate. The first conveyor roller 31 drives the first conveyor belt to transport the soil in the soil storage chamber 5 into the mixing box 9.

[0054] The fifth motor 28 is started, which drives the mixing blade 10 and the feeding roller 27 to rotate. The feeding roller 27 carries the fertilizer in the fertilizer storage chamber 6 to the first conveyor belt, and transports it to the mixing box 9 via the first conveyor belt. The mixing blade 10 rotates to mix the soil and fertilizer evenly.

[0055] Start the third motor, which drives the spiral auger 12 to rotate, and the spiral auger 12 evenly distributes the soil onto the second conveyor belt.

[0056] The fourth motor is started, which drives the second conveyor belt to transport the soil to the seedbed.

[0057] The content of this utility model is not limited to the above-described embodiments; a combination of one or more specific embodiments can also achieve the purpose of the utility model.

Claims

1. A longitudinal rice seedling raising machine, characterized in that, include: Track assembly (1) is set along a first direction, which is the length direction of the greenhouse; A bracket (2) is slidably mounted on the track assembly (1). The bracket (2) is connected to a first driving member (3), which is used to drive the bracket (2) to slide along the track assembly (1). The storage bin (4) has a soil storage chamber (5) and a fertilizer storage chamber (6), wherein the soil storage chamber (5) is used to store soil and the fertilizer storage chamber (6) is used to store fertilizer; The first conveying mechanism (7) is located at the outlet of the soil storage chamber (5) and the fertilizer storage chamber (6). The first conveying mechanism (7) is connected to the second driving member (8). The second driving member (8) is used to drive the first conveying mechanism (7) to transport soil and fertilizer into the mixing tank (9). A mixing tank (9) is set at the material discharge end of the first conveying mechanism (7). A rotatable mixing blade (10) is provided inside the mixing tank (9). The mixing blade (10) is used to mix the soil and fertilizer evenly. A leveling box (11) is installed on the bracket (2) and located below the outlet of the mixing tank (9). A spiral auger (12) is rotatably connected inside the leveling box (11). The spiral auger (12) is connected to a third driving member (13). The third driving member (13) is used to drive the spiral auger (12) to evenly disperse the soil and fertilizer. The second conveying mechanism (14) is located at the outlet of the leveling box (11). The second conveying mechanism (14) is connected to the fourth driving member (15), which is used to drive the second conveying mechanism (14) to evenly spread soil and fertilizer on the seedbed.

2. The rice seedbed longitudinal seedling raising machine according to claim 1, wherein The leveling box (11) is slidably mounted on the bracket (2) along a second direction, which is perpendicular to the first direction, and the storage box (4) is rotatably mounted on the bracket (2).

3. The rice seedbed longitudinal seedling raising machine according to claim 2, wherein The support (2) has two guide rails (16) spaced apart, and the two sides of the leveling box (11) are respectively rotatably connected with guide wheels (17) for rolling cooperation with the guide rails (16); The bracket (2) has a rectangular frame (18), and the four sides of the rectangular frame (18) are respectively rotatably connected to limiters (19). The limiters (19) include horizontally arranged rollers (20) and vertically arranged discs (21). The storage bin (4) is connected to an annular body (22), the bottom surface of the annular body (22) is slidably engaged with the four rollers (20), and the outer surface of the annular body (22) is slidably engaged with the inner surface of the four discs (21).

4. The rice seedbed longitudinal seedling raising machine according to claim 1, wherein The storage box (4) includes a first box (23) and a second box (24) fixedly connected. The soil storage cavity (5) is located in the first box (23), and the fertilizer storage cavity (6) is located in the second box (24). The bottom of the soil storage cavity (5) is provided with an upwardly protruding triangular plate (25), and the bottom surface of the triangular plate (25) is connected to a vibrating element (26).

5. The rice seedbed longitudinal seedling raising machine according to claim 4, wherein The opening of the fertilizer storage cavity (6) is gradually reduced, and the minimum opening is connected with a rotatable feeding roller (27), the outer surface of the feeding roller (27) is uniformly distributed with a storage groove, and the opening of the fertilizer storage cavity (6) is realized by rotating the feeding roller (27).

6. The rice seedbed longitudinal seedling raising machine according to claim 5, wherein Also includes: A fifth motor (28) is installed on the first support plate (32), the drive shaft of the fifth motor (28) is connected with the feeding roller (27) and the stirring knife (10) through the first transmission member (29), and the fifth motor (28) is used for driving the feeding roller (27) and the stirring knife (10) to rotate synchronously.

7. The rice seedbed longitudinal seedling raising machine according to claim 1, wherein A plurality of rolling bodies (30) are rotatably connected in the support (2), a plurality of rolling bodies (30) are rotatably installed on the track group (1), the rolling body (30) has a rectangular slot penetrating through both sides, the first drive member (3) is a first motor installed on one side of the support (2), the drive shaft of the first motor is a rectangular shaft, and the rectangular shaft is inserted into the rectangular slot of the rolling body (30).

8. The rice seedbed longitudinal seedling raising machine according to claim 1, wherein The first conveying mechanism (7) is a first conveying belt, the bottom of the storage box (4) is connected with a first support plate (32) for rotatable connection with two first conveying rollers (31) in the first conveying belt, the second drive member (8) is a second motor installed on the first support plate (32), and the drive shaft of the second motor is connected with the first conveying roller (31) through a shaft coupling.

9. The rice seedbed longitudinal seedling raising machine according to claim 1, wherein The third drive member (13) is a third motor installed on the soil leveling box (11), and the drive shaft of the third motor is fixedly connected with the central shaft of the spiral auger (12) through a shaft coupling.

10. The rice seedbed longitudinal seedling raising machine according to any one of claims 1 to 9, wherein The second conveying mechanism (14) is a second conveying belt, the bottom of the soil leveling box (11) is connected with a second support plate (34) for rotatable connection with two second conveying rollers (33) in the second conveying belt, the fourth drive member (15) is a fourth motor installed on the soil leveling box (11), and the drive shaft of the fourth motor is connected with the second conveying roller (33) through a second transmission member (35). The second conveying mechanism (14) is a second conveying belt, the bottom of the soil leveling box (11) is connected with a second support plate (34) for rotatable connection with two second conveying rollers (33) in the second conveying belt, the fourth drive member (15) is a fourth motor installed on the soil leveling box (11), and the drive shaft of the fourth motor is connected with the second conveying roller (33) through a second transmission member (35).

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