A land preparation compound operation machine

Abstract

The present invention relates to the field of planting technology, and discloses a tillage compound operation machine, comprising an operation machine chassis, an operation machine cab is provided at one end of the top of the operation machine chassis, a seed storage box is provided at the other end of the top of the operation machine chassis, an intermittent sowing device is provided inside the seed storage box, a soil turning device is provided at the end of the operation machine chassis away from the seed storage box, a device limiting plate is provided between the seed storage box and the operation machine cab, a device fixing frame is provided at the end of the device limiting plate close to the seed storage box, an intermittent tillage device is provided at the end of the device fixing frame close to the operation machine cab, and an adaptive tillage depth device is provided at the bottom of the device fixing frame. The invention can adaptively change the tillage depth according to changes in air temperature and land temperature, thereby improving the growth range of the root system and the utilization degree of nutrients in the soil, and performing one tillage and one delivery during sowing, thereby avoiding dense or sparse planting caused by inaccurate delivery, which affects the growth of crops.

Description

Technical Field

[0001] The present invention relates to the field of planting technology, in particular to a compound tillage and land preparation machine. Background Art

[0002] China's major soil types include red soil, brown soil, brown soil, black soil, chestnut soil, desert soil, fluvo-aquic soil (including silty black soil), irrigated silt soil, paddy soil, wet soil (meadow and marsh soil), saline-alkali soil, lithologic soil, and alpine soil. Black soil is primarily distributed along the eastern and western sides of the central and southern Greater Khingan Range, in the central Songnen Plain in Northeast China, and along the watershed between the Songhua River and the Liaohe River. These regions experience a temperate semi-humid continental climate, with an average annual temperature of -3°C to 3°C and annual precipitation of 350 to 500 mm. Black soil is characterized by a rich humus content, a thick humus layer, a predominantly black color, and a neutral to slightly alkaline soil profile. It is also rich in inorganic nutrients such as calcium, magnesium, potassium, and sodium, resulting in high soil fertility.

[0003] Scientific research and practical experience indicate that soil temperature and tillage density are key factors influencing crop growth. Both excessively low and high soil temperatures can negatively impact crop growth and development. High temperatures accelerate evaporation, organic matter decomposition, reduced soil fertility, and soil drying, accelerating the proliferation of pests and diseases. Low temperatures cause soil moisture to condense, slowing microbial activity and reducing soil fertility. This reduces the absorption capacity of crop roots and causes pests and diseases to enter a dormant state.

[0004] Tillage depth also affects soil temperature. Generally speaking, deeper tillage results in lower soil temperatures. Deep tillage can slow soil evaporation and plant transpiration, promoting crop growth and development. However, excessively deep tillage can disrupt soil structure, affecting its water retention and fertility, negatively impacting crop growth.

[0005] Tillage density refers to the number of crops planted per unit area. Appropriate tillage density can improve land resource utilization efficiency and crop yields. Excessively high crop density increases competition among crops, leading to scrambles for nutrients and water, and impacting crop growth and development. Low crop density underutilizes land resources, reducing competition among crops, but also limits yields.

[0006] Current tillage technology is too limited in its functionality. It cannot adaptively adjust tillage depth based on air and soil temperature fluctuations, nor can it accurately place seeds. This limits crop growth and soil nutrient availability, while also leading to seed loss and inaccurate planting, impacting crop growth and yield. To address this, we have developed a multi-function tillage and land preparation machine. Summary of the Invention

[0007] In view of the deficiencies in the prior art, the present invention provides a tillage and land preparation compound machine to solve the above-mentioned problems.

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a tillage and land preparation compound operation machine, comprising an operation machine chassis, the bottom of the operation machine chassis is rotatably connected to the operation machine wheels, one end of the top of the operation machine chassis is fixedly connected to the operation machine cab, a seed storage box is provided at the other end of the top of the operation machine chassis, an intermittent sowing device is provided inside the seed storage box, a soil turning device is provided at the end of the operation machine chassis away from the seed storage box, a device limiting plate is fixedly connected between the seed storage box and the operation machine cab, a device fixing frame is provided at the end of the device limiting plate close to the seed storage box, a rack limiting plate and a matching limiting plate are provided between the device fixing frame and the device limiting plate, the rack limiting plate and the matching limiting plate are fixedly connected together with one end of the device limiting plate, an intermittent tillage device is provided at the end of the device fixing frame close to the operation machine cab, and an adaptive tillage depth device is provided at the bottom of the device fixing frame.

[0009] Preferably, the soil-turning device includes a soil-turning safety cover, a soil-turning spiral roller, a lower pressure bar and a contraction spring. One end of the lower pressure bar is rotatably connected to both sides of the work machine chassis through a connecting rod, and the other end of the lower pressure bar is rotatably connected to the soil-turning spiral roller through a connecting rod. The soil-turning safety cover is fixedly connected to the top of the lower pressure bar at the upper end of the soil-turning spiral roller, one end of the contraction spring is fixedly connected to the bottom of the work machine chassis, and the other end of the contraction spring is fixedly connected to the bottom middle position of the lower pressure bar.

[0010] Preferably, the intermittent tillage device includes a servo motor, a power gear, a first precision gear, a second precision gear, a double-sided vertical rack and a first fixed block. The bottom of the servo motor is fixedly connected to the top of the working machine chassis, and the output end of the servo motor passes through the device limit plate and is fixedly connected to the power gear. Two fixed shafts are provided at both ends of the servo motor, and the two fixed shafts are rotatably connected to the first precision gear and the second precision gear through a connecting rod. The first precision gear and the second precision gear are meshed and connected with both ends of the power gear.

[0011] Preferably, the first precision gear and the second precision gear are centered on the cross-section, and a circle of teeth is provided at the end of the cross-section center close to the servo motor, and a half circle of teeth is provided at the end of the cross-section center away from the servo motor. The half circle of teeth of the first precision gear and the second precision gear are arranged in the same direction, and a double-sided vertical rack is provided at the end away from the servo motor and meshedly connected between one end of the first precision gear and the second precision gear half circle of teeth. The end of the double-sided vertical rack away from the servo motor is fixedly connected to one end of the first fixed block, the bottom of the first fixed block is fixedly connected to the top of the device fixing frame, and the double-sided vertical rack is slidably connected inside the rack limiting plate.

[0012] Preferably, the intermittent sowing device includes a feeding linkage rod, a feeding limiting wheel, two first bevel gears, a gear limiting frame, a second bevel gear and an intermittent gear. The feeding linkage rod is rotatably connected between the feeding ports below the seed storage box. The feeding limiting wheel is arranged inside the corresponding feeding ports and is fixedly connected to the feeding linkage rod. The two first bevel gears are arranged opposite to each other. The two first bevel gears are fixedly connected to one end of the feeding linkage rod. The gear limiting frame is rotatably connected to the two ends of the feeding linkage rod corresponding to the two first bevel gears.

[0013] Preferably, thirty-five percent of the tooth ends of the intermittent gear are toothless, the intermittent gear is meshed and connected with the second precision gear, the intermittent gear is fixedly connected with the second bevel gear through a connecting rod extending through the gear limit frame, and the second bevel gear is meshed and connected with the two first bevel gears.

[0014] Preferably, the adaptive tillage depth device includes a second fixed block, a telescopic rod, a single-sided vertical rack, a first fixed box, an adjustment gear, an arc-shaped hoeing rod and a soil temperature sensor. The bottom of the second fixed block is fixedly connected to the top of the device fixing frame, the end of the second fixed block close to the device limit plate is fixedly connected to one end of the telescopic rod, the other end of the telescopic rod is slidably connected to the inside of the matching limit plate, the output end of the telescopic rod is fixedly connected to the top of the single-sided vertical rack, the top of the first fixed box is fixedly connected to the bottom of the device fixing frame, the single-sided vertical rack extends to the inside of the first fixed box, the adjustment gear is rotatably connected to the inside of the first fixed box, the single-sided vertical rack is meshed with the first fixed box, the upper end of the arc-shaped hoeing rod is provided with teeth that are meshed with the lower end of the adjustment gear, the arc-shaped hoeing rod is slidably connected to the inside of the second precision gear, the soil temperature sensor is fixedly connected to the bottom of the working machine chassis near the end of the working machine cab, the soil temperature sensor is electrically connected to the telescopic rod, and the adjustment gears are linked together by a connecting rod.

[0015] Preferably, the top and bottom of the arc-shaped hoeing rod are respectively provided with an arc-shaped hoe head, a pop-up limiting rod, movable teeth and an active spring. The arc-shaped hoe head is fixedly connected to the bottom of the arc-shaped hoeing rod by screws, one end of the pop-up limiting rod is fixedly connected to the arc-shaped hoeing rod, the movable teeth are slidably connected to the outside of the pop-up limiting rod, one end of the active spring is fixedly connected to the rack limiting plate, and the other end of the active spring is fixedly connected to the movable teeth. The height of the movable teeth is greater than the height of the teeth of the arc-shaped hoeing rod.

[0016] Preferably, a feed port and a discharge port are provided at the lower end of the arc-shaped hoe rod, and the discharge port is provided with two channels at the rear end of the arc-shaped hoe head. The feed port and the discharge port are connected together, and the feed port corresponds to the seed feeding pipe respectively, and the feed port is plugged into the bottom of the seed feeding pipe.

[0017] Compared with the prior art, the present invention provides a compound tillage and land preparation machine with the following beneficial effects:

[0018] 1. When the tillage and land preparation compound machine is operating, it uses the forward power of the tillage vehicle and the coupling force between the contraction spring and the lower pressure bar to make the soil turning spiral roller fit downward and rotate to turn the soil, making the soil loose for subsequent processing.

[0019] 2. The intermittent tillage device of the tillage compound machine provides power for tillage, and the tillage interval can be adjusted according to the rotation speed. When the power gear rotates clockwise, it drives the first precision gear and the second precision gear to rotate counterclockwise. The counterclockwise rotation of the second precision gear drives the double-sided vertical rack to move upward. When the second precision gear rotates until the end without teeth is close to the double-sided vertical rack, the end with teeth of the first precision gear is close to the double-sided vertical rack and drives the double-sided vertical rack to move downward. When the end without teeth of the first precision gear rotates away from the double-sided vertical rack, the end with teeth of the second precision gear is close to the double-sided vertical rack. The purpose of repeated tillage at a constant speed is achieved by the fixed frame of the linkage device, avoiding the problem of crop growth affected by dense or sparse planting.

[0020] 3. The tillage compound operation machine utilizes the driving intermittent gear in the intermittent sowing device to rotate. When the intermittent gear rotates, it links the second bevel gear to rotate. The second bevel gear links the first bevel gear and the unloading linkage rod to rotate. The unloading linkage rod links the unloading limiting wheel to rotate so that the seeds inside the seed storage box fall to the next step. When the second precision gear rotates counterclockwise, the intermittent gear is linked to rotate counterclockwise. When the double-sided vertical rack descends, the intermittent gear is rotated. The intermittent gear is linked to rotate for sowing. When the toothless end of the second precision gear is no longer in contact with the intermittent gear, sowing is stopped. When sowing, one plowing and one delivery are performed to achieve precise sowing, avoiding dense or sparse planting caused by inaccurate delivery, which affects the growth of crops.

[0021] 4. The soil temperature sensor of the tillage and land preparation compound machine detects the soil temperature when the tillage device turns the soil, and adjusts the telescopic rod after detection. When the temperature is high, the telescopic rod extends, and when the temperature is low, the telescopic rod contracts. When the telescopic rod contracts, the linkage adjustment gear rotates, and the adjustment gear is linked to the gear at the upper end of the arc-shaped hoeing rod to cause the arc-shaped hoeing rod to contract, thereby lowering the temperature of the cultivated soil. When the telescopic rod extends, the linkage adjustment gear rotates, and the adjustment gear is linked to the gear at the upper end of the arc-shaped hoeing rod to cause the arc-shaped hoeing rod to extend, thereby raising the temperature of the cultivated soil. The tillage depth is adaptively changed according to changes in air temperature and land temperature, thereby increasing the growth range of the root system and the utilization rate of nutrients in the soil.

[0022] 5. The height of the movable teeth of this tillage compound machine is greater than that of the teeth of the arc-shaped hoe bar. When the single-sided vertical rack is extended, the movable teeth cooperate with the active spring to prevent the arc-shaped hoe bar from falling off and protect the single-sided vertical rack, thereby increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the present invention;

[0025] Figure 3 This is a structural schematic diagram of the soil turning device of the present invention;

[0026] Figure 4 This is a structural schematic diagram of the soil turning device of the present invention;

[0027] Figure 5 This is a schematic diagram of the structural details of the present invention;

[0028] Figure 6 This is a schematic diagram of the structural details of the present invention;

[0029] Figure 7 This is a schematic diagram of the structural details of the present invention;

[0030] Figure 8 This is a schematic structural diagram of the intermittent sowing device of the present invention;

[0031] Figure 9 This is a schematic structural diagram of the intermittent tillage device of the present invention;

[0032] Figure 10 This is a schematic diagram of the linkage structure of the intermittent sowing device and the intermittent tillage device of the present invention;

[0033] Figure 11 This is a schematic diagram of the structural details of the present invention;

[0034] Figure 12 This is a schematic diagram of the structural details of the present invention;

[0035] Figure 13 This is a schematic structural diagram of the intermittent tillage device of the present invention;

[0036] Figure 14 This is a schematic diagram of the adaptive tillage depth device of the present invention;

[0037] Figure 15 This is a schematic diagram of the adaptive tillage depth device of the present invention;

[0038] Figure 16 This is a schematic diagram of the adaptive tillage depth device of the present invention;

[0039] Figure 17 This is a schematic diagram of the structure of the arc-shaped hoeing rod of the present invention;

[0040] Figure 18 This is a schematic diagram of the structure of the arc-shaped hoeing rod of the present invention.

[0041] In the figure: 1. chassis of the working machine; 2. wheels of the working machine; 3. cab of the working machine; 4. safety cover for turning over soil; 5. spiral roller for turning over soil; 6. pressure bar; 7. contraction spring; 8. seed storage box; 9. sealing cover; 10. seed feeding pipe; 11. feeding linkage rod; 12. feeding limit wheel; 13. first bevel gear; 14. gear limit frame; 15. second bevel gear; 16. intermittent gear; 17. servo motor; 18. power gear; 19. first precision gear; 20. second Precision gear; 21. Double-sided vertical rack; 22. Device limit plate; 23. Rack limit plate; 24. Matching limit plate; 25. Device fixing frame; 26. First fixing block; 27. Second fixing block; 28. Telescopic rod; 29. ​​Single-sided vertical rack; 30. Fixing box; 31. Adjustment gear; 32. Arc hoeing rod; 33. Arc hoe head; 34. Soil temperature sensor; 35. Pop-up limit rod; 36. Movable teeth; 37. Active spring; 38. Feed port; 39. Discharge port. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] See also Figure 1-18A tillage and land preparation compound operation machine includes an operation machine chassis 1, the bottom of the operation machine chassis 1 is rotatably connected to the operation machine wheel 2, one end of the top of the operation machine chassis 1 is fixedly connected to the operation machine cab 3, the other end of the top of the operation machine chassis 1 is provided with a seed storage box 8, the interior of the seed storage box 8 is provided with an intermittent sowing device, the end of the operation machine chassis 1 away from the seed storage box 8 is provided with a soil turning device, the seed storage box 8 and the operation machine cab 3 are fixedly connected with a device limiting plate 22, the end of the device limiting plate 22 close to the seed storage box 8 is provided with a device fixing frame 25, the device fixing frame 25 and the device fixing frame 25 are connected to the device A rack limiting plate 23 and a matching limiting plate 24 are provided between the limiting plates 22. The rack limiting plate 23 and the matching limiting plate 24 are fixedly connected to one end of the device limiting plate 22. An intermittent tillage device is provided at one end of the device fixing frame 25 close to the operating machine cab 3. An adaptive tillage depth device is provided at the bottom of the device fixing frame 25, which can adaptively change the tillage depth according to changes in air temperature and land temperature, thereby increasing the growth range of the root system and the utilization rate of nutrients in the soil, and performing one tillage and one delivery during sowing, thereby avoiding dense or sparse planting caused by inaccurate delivery, which affects the growth of crops.

[0044] Furthermore, the soil-turning device includes a soil-turning safety cover 4, a soil-turning spiral roller 5, a lower pressure bar 6 and a contraction spring 7. One end of the lower pressure bar 6 is rotatably connected to both sides of the working machine chassis 1 through a connecting rod, and the other end of the lower pressure bar 6 is rotatably connected to the soil-turning spiral roller 5 through a connecting rod. The soil-turning safety cover 4 is fixedly connected to the top of the lower pressure bar 6 at the upper end of the soil-turning spiral roller 5, one end of the contraction spring 7 is fixedly connected to the bottom of the working machine chassis 1, and the other end of the contraction spring 7 is fixedly connected to the middle position of the bottom of the lower pressure bar 6. When working, the forward power of the tillage vehicle and the linkage force between the contraction spring 7 and the lower pressure bar 6 are used to make the soil-turning spiral roller 5 rotate downward to fit the ground and turn the soil, so that the soil becomes loose for subsequent processing.

[0045] Furthermore, the intermittent tillage device includes a servo motor 17, a power gear 18, a first precision gear 19, a second precision gear 20, a double-sided vertical rack 21 and a first fixed block 26. The bottom of the servo motor 17 is fixedly connected to the top of the working machine chassis 1, and the output end of the servo motor 17 passes through the device limit plate 22 and is fixedly connected to the power gear 18. Two fixed shafts are provided at both ends of the servo motor 17. The two fixed shafts are rotatably connected to the first precision gear 19 and the second precision gear 20 through a connecting rod. The first precision gear 19 and the second precision gear 20 are meshed and connected with both ends of the power gear 18. The device provides power for tillage and can adjust the tillage gap according to the rotation speed of 17.

[0046] Furthermore, the first precision gear 19 and the second precision gear 20 are centered on the cross section, and a circle of teeth is provided at one end of the cross section center close to the servo motor 17, and a half circle of teeth is provided at one end of the cross section center away from the servo motor 17. The half circle of teeth of the first precision gear 19 and the second precision gear 20 are arranged in the same direction, and a double-sided vertical rack 21 is provided at the end away from the servo motor 17 and meshedly connected between one end of the half circle of teeth of the first precision gear 19 and the second precision gear 20. The end of the double-sided vertical rack 21 away from the servo motor 17 is fixedly connected to one end of the first fixed block 26, the bottom of the first fixed block 26 is fixedly connected to the top of the device fixing frame 25, and the double-sided vertical rack 21 is slidably connected Inside the rack limit plate 23, the shapes of 19 and 20 are introduced. When the power gear 18 rotates clockwise, it drives the first precision gear 19 and the second precision gear 20 to rotate counterclockwise. The counterclockwise rotation of the second precision gear 20 drives the double-sided vertical rack 21 to move upward. When the second precision gear 20 rotates until the end without teeth is close to the double-sided vertical rack 21, the end with teeth of the first precision gear 19 is close to the double-sided vertical rack 21 and drives the double-sided vertical rack 21 to move downward. When the end without teeth of the first precision gear 19 rotates away from the double-sided vertical rack 21, the end with teeth of the second precision gear 20 is close to the double-sided vertical rack 21. The purpose of repeated cultivation at a constant speed is achieved by the linkage device fixing frame 25.

[0047] Furthermore, the intermittent sowing device includes a feeding linkage rod 11, a feeding limiting wheel 12, two first bevel gears 13, a gear limiting frame 14, a second bevel gear 15 and an intermittent gear 16. The feeding linkage rod 11 is rotatably connected between the feeding ports below the seed storage box 8, and the feeding limiting wheel 12 is arranged inside the corresponding feeding port and fixedly connected to the feeding linkage rod 11. The two first bevel gears 13 are arranged opposite to each other, and the two first bevel gears 13 are fixedly connected to one end of the feeding linkage rod 11. The gear limiting frame 14 is rotatably connected to the two ends of the corresponding two first bevel gears 13 of the feeding linkage rod 11. When farming, the intermittent gear 16 is driven to rotate. When the intermittent gear 16 rotates, it links the second bevel gear 15 to rotate. The second bevel gear 15 links the first bevel gear 13 and the feeding linkage rod 11 to rotate. The feeding linkage rod 11 links the feeding limiting wheel 12 to rotate to make the seeds inside the seed storage box 8 fall to proceed to the next step.

[0048] Furthermore, thirty-five percent of the tooth ends of the intermittent gear 16 are set without teeth. The intermittent gear 16 is meshed and connected with the second precision gear 20. The intermittent gear 16 extends through the gear limit frame 14 through a connecting rod and is fixedly connected with the second bevel gear 15. The second bevel gear 15 is meshed and connected with the two first bevel gears 13. When the second precision gear 20 rotates counterclockwise, the intermittent gear 16 is linked to rotate counterclockwise. When the double-sided vertical rack 21 descends, the intermittent gear 16 is rotated, and the intermittent gear 16 is linked to rotate for sowing. When the toothless end of the second precision gear 20 is no longer in contact with the intermittent gear 16, sowing is stopped to achieve precise sowing.

[0049] Furthermore, the adaptive tillage depth device includes a second fixed block 27, a telescopic rod 28, a single-sided vertical rack 29, a first fixed box 30, an adjustment gear 31, an arc-shaped hoeing rod 32 and a soil temperature sensor 34. The bottom of the second fixed block 27 is fixedly connected to the top of the device fixing frame 25, the end of the second fixed block 27 close to the device limiting plate 22 is fixedly connected to one end of the telescopic rod 28, the other end of the telescopic rod 28 is slidably connected to the inside of the matching limiting plate 24, the output end of the telescopic rod 28 is fixedly connected to the top of the single-sided vertical rack 29, the top of the first fixed box 30 is fixedly connected to the bottom of the device fixing frame 25, the single-sided vertical rack 29 extends to the inside of the first fixed box 30, the adjustment gear 31 is rotatably connected to the inside of the first fixed box 30, the single-sided vertical rack 29 is meshed with the first fixed box 30, and the upper end of the arc-shaped hoeing rod 32 is provided with teeth and the adjustment gear 3 1 is meshed and connected together, the arc-shaped hoeing rod 32 is slidably connected to the inside of the second precision gear 20, and the soil temperature sensor 34 is fixedly connected to the bottom of the work machine chassis 1 near one end of the work machine cab 3. The soil temperature sensor 34 is electrically connected to the telescopic rod 28, and the adjustment gears 31 are linked together through a connecting rod. When the soil-turning device turns the soil, the soil temperature sensor 34 detects the soil temperature and adjusts the telescopic rod 28 after detection. When the temperature is high, the telescopic rod 28 extends, and when the temperature is low, the telescopic rod 28 contracts. When the telescopic rod 28 contracts, the linkage adjustment gear 31 rotates, and the adjustment gear 31 is linked to the gear at the upper end of the arc-shaped hoeing rod 32 to cause the arc-shaped hoeing rod 32 to contract and reduce the temperature of the cultivated soil. When the telescopic rod 28 extends, the linkage adjustment gear 31 rotates, and the adjustment gear 31 is linked to the gear at the upper end of the arc-shaped hoeing rod 32 to cause the arc-shaped hoeing rod 32 to extend and increase the temperature of the cultivated soil.

[0050] Furthermore, the top and bottom of the arc-shaped hoeing rod 32 are respectively provided with an arc-shaped hoe head 33, a pop-up limit rod 35, movable teeth 36 and an active spring 37. The arc-shaped hoe head 33 is fixedly connected to the bottom of the arc-shaped hoeing rod 32 by screws, one end of the pop-up limit rod 35 is fixedly connected to the arc-shaped hoeing rod 32, and the movable teeth 36 are slidably connected to the outside of the pop-up limit rod 35. One end of the active spring 37 is fixedly connected to the rack limit plate 23, and the other end of the active spring 37 is fixedly connected to the movable teeth 36. The height of the movable teeth 36 is greater than the tooth height of the arc-shaped hoeing rod 32. When the single-sided vertical rack 29 is extended, the movable teeth 36 cooperate with the active spring 37 to prevent the arc-shaped hoeing rod 32 from falling off and to protect the single-sided vertical rack 29.

[0051] Furthermore, a feed port 38 and a discharge port 39 are provided at the lower end of the arc-shaped hoe rod 32. The discharge port 39 is provided at the rear end of the arc-shaped hoe head 33 and has two channels. The feed port 38 and the discharge port 39 are connected together. The feed port 38 corresponds to the seed feeding pipe 10 respectively. The feed port 38 is plugged into the bottom of the seed feeding pipe 10. When sowing, the seed enters the discharge port 39 through the feed port 38 and is discharged to the farming position.

[0052] Working principle: When operating, the forward power of the tillage vehicle and the coupling force between the contraction spring 7 and the lower pressure bar 6 are used to make the soil-turning spiral roller 5 fit downward with the ground to rotate and turn the soil, so that the soil becomes loose and convenient for subsequent processing. The intermittent tillage device provides power for tillage, and the tillage gap can be adjusted according to the rotation speed of the servo motor 17. When the power gear 18 rotates clockwise, it drives the first precision gear 19 and the second precision gear 20 to rotate counterclockwise, and the second precision gear 20 rotates counterclockwise to drive the double-sided vertical rack 21 to move upward. When the second precision gear 20 rotates to the end without teeth and approaches the double-sided vertical rack 21, the toothed end of the first precision gear 19 approaches the double-sided vertical rack 21 and The double-sided vertical rack 21 is driven to move downward, and when the toothless end of the first precision gear 19 rotates away from the double-sided vertical rack 21, the toothed end of the second precision gear 20 approaches the double-sided vertical rack 21, and the linkage device fixing frame 25 is repeated to achieve the purpose of repeated cultivation at a constant speed. Then, the driving intermittent gear 16 in the intermittent sowing device is rotated. When the intermittent gear 16 rotates, the second bevel gear 15 is rotated in conjunction with the first bevel gear 13 and the blanking linkage rod 11 to rotate. The blanking linkage rod 11 is linked to the blanking limiting wheel 12 to rotate so that the seeds inside the seed storage box 8 fall to the next step. When the second precision gear 20 rotates counterclockwise, the intermittent gear 16 is linked counterclockwise. The clockwise rotation causes the intermittent gear 16 to rotate when the double-sided vertical rack 21 descends, and the intermittent gear 16 is linked to rotate for sowing. When the toothless end of the second precision gear 20 is no longer in contact with the intermittent gear 16, sowing is stopped to achieve precise sowing. When the soil turning device turns the soil, the soil temperature sensor 34 detects the soil temperature and adjusts the telescopic rod 28 after detection. When the temperature is high, the telescopic rod 28 extends, and when the temperature is low, the telescopic rod 28 contracts. When the telescopic rod 28 contracts, the linkage adjustment gear 31 rotates, and the adjustment gear 31 is linked to the gear at the upper end of the arc hoeing rod 32 to cause the arc hoeing rod 32 to contract, thereby reducing the temperature of the cultivated soil. When the telescopic rod 28 extends, the linkage adjustment gear 31 rotates. , adjust the gear 31 to link the gear at the upper end of the arc-shaped hoeing rod 32, so that the arc-shaped hoeing rod 32 is extended to increase the temperature of the cultivated soil. The height of the movable teeth 36 is greater than the tooth height of the arc-shaped hoeing rod 32. When the single-sided vertical rack 29 is extended, the movable teeth 36 cooperate with the active spring 37 to prevent the arc-shaped hoeing rod 32 from falling off and protect the single-sided vertical rack 29. During sowing, the material enters the discharge port 39 through the feed port 38 and is discharged to the cultivation position. The cultivation depth can be adaptively changed according to changes in air temperature and land temperature, thereby increasing the growth range of the root system and the utilization rate of nutrients in the soil. In addition, one tillage and one delivery are performed during sowing, avoiding dense or sparse planting caused by inaccurate delivery, which affects the growth of crops.

[0053] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A soil preparation compound machine, comprising a machine chassis (1), characterized in that: The bottom of the working machine chassis (1) is rotatably connected to the working machine wheel (2), one end of the top of the working machine chassis (1) is fixedly connected to the working machine cab (3), the other end of the top of the working machine chassis (1) is provided with a seed storage box (8), the interior of the seed storage box (8) is provided with an intermittent sowing device, the end of the working machine chassis (1) away from the seed storage box (8) is provided with a soil turning device, a device limiting plate (22) is fixedly connected between the seed storage box (8) and the working machine cab (3), the end of the device limiting plate (22) close to the seed storage box (8) is provided with a device fixing frame (25), a rack limiting plate (23) and a matching limiting plate (24) are provided between the device fixing frame (25) and the device limiting plate (22), the rack limiting plate (23) and the matching limiting plate (24) are provided. The closing limit plate (24) is fixedly connected to one end of the device limit plate (22); an intermittent tillage device is provided at one end of the device fixing frame (25) close to the working machine cab (3); an adaptive tillage depth device is provided at the bottom of the device fixing frame (25); the intermittent tillage device comprises a servo motor (17), a power gear (18), a first precision gear (19), a second precision gear (20), a double-sided vertical rack (21) and a first fixed block (26); the bottom of the servo motor (17) is fixedly connected to the top of the working machine chassis (1); the output end of the servo motor (17) passes through the device limit plate (22) and is fixedly connected to the power gear (18); two fixed shafts are provided at both ends of the servo motor (17); two fixed shafts are provided at both ends of the servo motor (17); and two fixed shafts are provided at both ends of the servo motor (17). The fixed shaft is rotatably connected to the first precision gear (19) and the second precision gear (20) through a connecting rod. The first precision gear (19) and the second precision gear (20) are meshed and connected with the two ends of the power gear (18). The first precision gear (19) and the second precision gear (20) are centered on the cross section. The end of the cross section center close to the servo motor (17) is provided with a circle of teeth, and the end of the cross section center away from the servo motor (17) is provided with a half circle of teeth. The half circle of teeth of the first precision gear (19) and the second precision gear (20) are arranged in the same direction. A double-sided vertical rack (21) is provided at the end away from the servo motor (17) and meshed with one of the half circle of teeth of the first precision gear (19) and the second precision gear (20). The double-sided vertical rack (21) is fixedly connected to one end of the first fixed block (26) at one end away from the servo motor (17), and the bottom of the first fixed block (26) is fixedly connected to the top of the device fixing frame (25). The double-sided vertical rack (21) is slidably connected to the inside of the rack limit plate (23). The intermittent sowing device includes a feeding linkage rod (11), a feeding limiting wheel (12), two first bevel gears (13), a gear limiting frame (14), a second bevel gear (15) and an intermittent gear (16). The feeding linkage rod (11) is rotatably connected between the feeding ports below the seed storage box (8). The feeding limiting wheel (12) is arranged inside the corresponding feeding port and is fixedly connected to the feeding linkage rod (11).The two first bevel gears (13) are arranged opposite to each other, the two first bevel gears (13) are fixedly connected to one end of the blanking linkage rod (11), and the gear limit frame (14) is rotatably connected to the two ends of the blanking linkage rod (11) corresponding to the two first bevel gears (13).

2. A soil tillage and preparation compound machine according to claim 1, characterized in that: The soil turning device comprises a soil turning safety cover (4), a soil turning spiral roller (5), a lower pressure bar (6) and a contraction spring (7), one end of the lower pressure bar (6) is rotatably connected to both sides of the working machine chassis (1) through a connecting rod, and the other end of the lower pressure bar (6) is rotatably connected to the soil turning spiral roller (5) through a connecting rod, the soil turning safety cover (4) is fixedly connected to the top of the lower pressure bar (6) at the upper end of the soil turning spiral roller (5), one end of the contraction spring (7) is fixedly connected to the bottom of the working machine chassis (1), and the other end of the contraction spring (7) is fixedly connected to the middle position of the bottom of the lower pressure bar (6).

3. The soil tillage and preparation compound machine according to claim 1, characterized in that: Thirty-five percent of the tooth end of the intermittent gear (16) is toothless. The intermittent gear (16) is meshed and connected with the second precision gear (20). The intermittent gear (16) is fixedly connected with the second bevel gear (15) through a connecting rod extending through the gear limit frame (14). The second bevel gear (15) is meshed and connected with the two first bevel gears (13).

4. The soil tillage and preparation compound machine according to claim 1, characterized in that: The self-adaptive tillage depth device comprises a second fixed block (27), a telescopic rod (28), a single-sided vertical rack (29), a first fixed box (30), an adjustment gear (31), an arc-shaped hoeing rod (32) and a soil temperature sensor (34), wherein the bottom of the second fixed block (27) is fixedly connected to the top of the device fixing frame (25), one end of the second fixed block (27) close to the device limit plate (22) is fixedly connected to one end of the telescopic rod (28), the other end of the telescopic rod (28) is slidably connected to the inside of the matching limit plate (24), the output end of the telescopic rod (28) is fixedly connected to the top of the single-sided vertical rack (29), the top of the first fixed box (30) is fixedly connected to the device fixing frame (25), and the output end of the telescopic rod (28) is fixedly connected to the top of the single-sided vertical rack (29). 5) are fixedly connected together, a single-sided vertical rack (29) extends to the inside of the first fixed box (30), an adjustment gear (31) is rotatably connected to the inside of the first fixed box (30), the single-sided vertical rack (29) is meshed and connected to the first fixed box (30), an upper end of the arc-shaped hoeing rod (32) is provided with teeth meshed and connected to the lower end of the adjustment gear (31), the arc-shaped hoeing rod (32) is slidably connected to the inside of the second precision gear (20), a soil temperature sensor (34) is fixedly connected to one end of the bottom of the working machine chassis (1) near the working machine cab (3), the soil temperature sensor (34) is electrically connected to the telescopic rod (28), and the adjustment gears (31) are linked together by a connecting rod.

5. The land preparation compound machine according to claim 4, characterized in that: The top and bottom of the arc-shaped hoeing rod (32) are respectively provided with an arc-shaped hoe head (33), a pop-up window limiting rod (35), a movable tooth (36) and an active spring (37). The arc-shaped hoe head (33) is fixedly connected to the bottom of the arc-shaped hoeing rod (32) by a screw. One end of the pop-up window limiting rod (35) is fixedly connected to the arc-shaped hoeing rod (32). The movable tooth (36) is slidably connected to the outside of the pop-up window limiting rod (35). One end of the active spring (37) is fixedly connected to the rack limiting plate (23). The other end of the active spring (37) is fixedly connected to the movable tooth (36). The height of the movable tooth (36) is greater than the tooth height of the arc-shaped hoeing rod (32).

6. The land preparation compound machine according to claim 5, characterized in that: The lower end of the arc-shaped hoeing rod (32) is provided with a feed port (38) and a discharge port (39), and the discharge port (39) is provided at the rear end of the arc-shaped hoe head (33) and has two channels. The feed port (38) and the discharge port (39) are connected together, and the feed port (38) is respectively provided corresponding to the seed discharge pipe (10), and the feed port (38) and the bottom of the seed discharge pipe (10) are plugged together.

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