Agricultural tillage land preparation machine

Abstract

The agricultural tillage land preparation machine comprises a first rack, and first supporting plates are fixed to the four corners of the first rack correspondingly. Through the arrangement of the soil transverse cutting structure, the soil longitudinal cutting device and the soil block smashing structure, when a tractor slowly pulls the device to move forwards, the soil transverse cutting structure can leave transverse cutting grooves in the surface of a cultivated land; the longitudinal soil cutting device can cut the ground between two adjacent transverse cutting grooves left on the cultivated land after the transverse soil cutting structure works into a plurality of blocks, and the soil block crushing structure can crush soil blocks which are cut into blocks after the transverse soil cutting structure and the longitudinal soil cutting device work; the broken soil is discharged from the through holes in the arc-shaped soil screening plate, so that when the device is used for soil preparation, cultivated land can be firstly cut into small blocks, then soil blocks are shoveled up from the bottoms of the soil blocks and are broken, and the purpose of uniformly breaking a planting soil layer on the earth surface is effectively achieved.

Description

Technical Field

[0001] The invention relates to the technical field of agriculture, and in particular to an agricultural tillage and land preparation machine. Background Art

[0002] Before planting crops, soil preparation is a labor-intensive and seasonal agricultural operation. Currently, the most common method of tillage is to use human, animal or mechanical tillage. First, the soil of the crop rotation field is deep plowed, sun-dried and weeded, then the soil is manually broken and mixed with dead weeds, and then the soil is leveled. Then, direct sowing or soil preparation is performed according to the needs of crops, but these methods all have different problems.

[0003] First of all, tillage with human and animal power is labor-intensive and time-consuming, and it is difficult to adapt to the tight crop planting season and the requirements for soil tillage quality. As for mechanical tillage, the commonly used land preparation equipment is the rotary tiller, which is matched with a tractor to complete the tillage and harrowing operations. It has been widely used because of its strong soil crushing ability and flat surface after tillage. However, during the operation of the rotary tiller, the multiple blades used for soil crushing are fixed on the same rotating shaft. When one of the blades hits a harder soil block, it will cause the rotary tiller to lift up as a whole. In this way, the soil below the rotary tiller will not be plowed or raked by the rotary tiller blades, or the plowing and raking operations are shallow and not up to standard. Moreover, when the blades hit a harder soil block, the rotary tiller blades are also easy to break. If not discovered in time, the plowing and raking operations will not meet the standards.

[0004] Based on the above, the present invention designs an agricultural tillage and land preparation machine to solve the above problems. Summary of the invention

[0005] In order to solve the above problems, the present invention provides an agricultural tillage and land preparation machine.

[0006] The present invention is achieved through the following technical solutions: An agricultural tillage machine comprises a first frame, wherein first support plates are respectively fixed at the four corners of the first frame, and walking wheels are installed on the side walls of each of the first support plates, and the central axis of the walking wheels is rotatably connected to the first support plate through a bearing, and two hydraulic cylinders are symmetrically fixedly installed at the center of the top surface of the first frame, and the telescopic ends of the two hydraulic cylinders penetrate the first frame and are fixed to the same second frame, and first guide rods are respectively fixed at the four corners of the top surface of the second frame, and the top end of the first guide rod penetrates the first frame and is slidably connected to the contact point with the first frame, and a traction rod fixedly connected to the agricultural vehicle is hinged on one side of the second frame through a pin shaft, and the second frame is also A third frame is fixed on one side, and a soil crushing structure is installed at the bottom end of the third frame. A soil transverse dividing structure is fixedly installed on one side of the bottom end of the second frame, and a soil longitudinal cutting device is fixedly installed on the other side of the bottom end of the second frame. A transmission structure assembly is fixedly installed on the second frame, and the transmission structure assembly consists of a first transmission structure, a second transmission structure and a third transmission structure. The soil transverse dividing structure is transmission-connected to the transmission shaft of the agricultural vehicle through the first transmission structure, the soil longitudinal cutting device is transmission-connected to the first transmission structure through the second transmission structure, and the soil crushing structure is transmission-connected to the second transmission structure through the third transmission structure.

[0007] Preferably, the soil crushing structure includes a barrel, four second guide rods are symmetrically fixed on the top of the barrel in pairs, the top ends of the second guide rods penetrate the third frame and are fixed with a stopper, the second guide rods are slidably connected with the third frame at the contact point, each second guide rod between the bottom surface of the third frame and the top end of the barrel is sleeved with a first spring, a first rotating shaft is provided in the barrel, the axis line of the first rotating shaft is consistent with the axis line of the barrel, the two ends of the first rotating shaft respectively penetrate the inner walls of both sides of the barrel and are respectively fixed with first pulleys, and the first rotating shaft is rotatably connected with the contact point of the barrel through a bearing, the first pulley is transmission-connected to the third transmission structure through a belt, a plurality of soil crushing plates are hinged on the first rotating shaft in the barrel through a pin shaft, and the plurality of soil crushing plates are evenly distributed on the first rotating shaft, A mounting groove is provided on one side of the bottom of the barrel, and an arc-shaped soil screening plate is slidably installed in the mounting groove, and a plurality of through holes are evenly provided on the arc-shaped soil screening plate, and first fixing blocks are respectively fixed at both ends of the outer arc surface of the arc-shaped soil screening plate, and first guide cylinders are respectively fixed on opposite sides of the two first fixing blocks, and a third guide rod is slidably provided in the first guide cylinder, and both ends of the third guide rod respectively extend out of the first guide cylinder and are respectively fixed with first connecting blocks, the first connecting block is fixedly connected to the outer wall of the barrel, a second spring is fixed between the first guide cylinder and the first connecting block, and the second spring is sleeved on the third guide rod, and a soil inlet is provided on the other side of the bottom of the barrel, and a shovel plate is fixed at the bottom end of the soil inlet, the shovel plate is inclined, and a plurality of partitions are evenly fixed on the top surface of the shovel plate.

[0008] The cam is provided with a second guide rod, and the second guide rod is slidably connected to the second support plate of the second belt drive mechanism. The second guide rod has the second guide rod and the second guide rod respectively connected to the second support plate. The second guide rod is provided at the cam and the second guide rod is slidably connected to the second support plate of the second belt drive mechanism.

[0009] Preferably, the soil transverse division structure includes two first fixed plates, the top of the first fixed plate is fixedly connected to the bottom of the second frame, a roller is provided between the two first fixed plates, three cutting plates are fixed on the outer wall of the roller, the three cutting plates are evenly distributed on the outside of the roller, both ends of the roller penetrate the first fixed plates respectively and are fixed with third pulleys respectively, the roller is rotatably connected to the contact point of the first fixed plate through a bearing, and the third pulley is transmission-connected to the first transmission structure through a belt.

[0010] Preferably, the soil longitudinal cutting device includes two second fixed plates, the top of the second fixed plate is fixedly connected to the bottom of the second frame, a third rotating shaft is provided between the two second fixed plates, a plurality of cutting wheels are equidistantly installed on the third rotating shaft, the bottom end of the cutting wheel and the bottom end of the shovel plate are on the same horizontal line, and the number of the cutting wheels is equal to the number of partitions, each cutting wheel is arranged corresponding to a partition, the two ends of the third rotating shaft respectively penetrate the two second fixed plates and are respectively fixed with fourth pulleys, the third rotating shaft is rotatably connected to the contact point of the second fixed plate through a bearing, the fourth pulley is transmission-connected to the second transmission structure through a belt, the upper ends of the plurality of cutting wheels are provided with the same arc cover, and the two ends of the arc cover are respectively fixedly connected to the two second fixed plates.

[0011] Preferably, the first transmission structure includes a fourth rotating shaft, both ends of the fourth rotating shaft respectively penetrate the second frame and are rotatably connected by bearings at the contact points, and fifth pulleys are respectively fixed at both ends of the fourth rotating shaft, and the third pulley is transmission-connected to the fifth pulley by a belt, two first cylinders are sleeved on the fourth rotating shaft, and second connecting blocks are respectively fixed on both sides of the bottom end of the first cylinder, and the bottom end of the second connecting block is fixedly connected to the second frame, the first cylinder is rotatably connected to the fourth rotating shaft by a bearing, the two first cylinders are sleeved with a second cylinder, the second cylinder is arranged between the two second connecting blocks of the first cylinder, and the second cylinder is rotatably connected to the first cylinder by a bearing, and a first bevel gear is fixedly installed on the fourth rotating shaft between the two first cylinders, a first connecting rod is respectively fixed on the same side of the two second cylinders, and a third cylinder is fixedly connected between the two first connecting rods, a fifth rotating shaft is sleeved in the third cylinder, and the fifth rotating shaft is rotatably connected to the third cylinder by a bearing, first limiting rings are respectively fitted on both sides of the third cylinder, and the first limiting ring is fixedly sleeved on the fifth rotating shaft, and a second bevel gear is fixedly installed on one end of the fifth rotating shaft The gear, the second bevel gear is meshed with the first bevel gear, the other end of the fifth rotating shaft is sleeved with a second guide cylinder, the second guide cylinder is slidably connected to the fifth rotating shaft, a first guide slot is opened on the inner wall of the second guide cylinder, a first slider is slidably arranged in the first guide slot, the first slider is fixedly connected to the fifth rotating shaft, a connecting piece connected to the transmission shaft of the agricultural vehicle is fixedly provided at the side end of the second guide cylinder, a fourth cylinder is sleeved on the fifth rotating shaft, the fourth cylinder is rotatably connected to the fifth rotating shaft through a bearing, and second limiting rings are respectively attached to both sides of the fourth cylinder, the The second limiting ring is fixedly sleeved on the fifth rotating shaft, and third connecting blocks are respectively fixed on both sides of the fourth cylinder body, and fifth guide rods are respectively fixed on the bottom ends of the two third connecting blocks, and retaining rings are respectively fixed on the bottom ends of the two fifth guide rods, and the third guide cylinder is sleeved on the two fifth guide rods, and the fifth guide rod is slidably connected to the third guide cylinder, and a fifth cylinder is fixedly connected between the two third guide cylinders, and the fifth cylinder body is slidably sleeved on the traction rod, and guide strips are respectively fixed on both sides of the traction rod, and sliding grooves for the two guide strips to pass through are respectively opened on the inner walls on both sides of the fifth cylinder body.

[0012] Preferably, the second transmission structure includes a sixth rotating shaft, two ends of the sixth rotating shaft respectively penetrate the second frame and are rotatably connected by bearings at the contact points therebetween, and a sixth pulley is respectively fixed at two ends of the sixth rotating shaft, the fourth pulley is transmission connected to the sixth pulley by a belt, two sixth cylinders are sleeved on the sixth rotating shaft, fourth connecting blocks are respectively fixed on both sides of the bottom end of the sixth cylinder, the bottom end of the fourth connecting block is fixedly connected to the second frame, the sixth cylinder is rotatably connected to the sixth rotating shaft by bearings, a third bevel gear is fixedly sleeved on the sixth rotating shaft between the two sixth cylinders, two third fixing plates are provided on one side of the sixth rotating shaft, the third fixing plates are fixed on the second frame, the same seventh rotating shaft is transversely penetrated on the two third fixing plates, the seventh rotating shaft is rotatably connected to the contact point of the third fixing plate by bearings, a fourth bevel gear is fixed at one end of the seventh rotating shaft, the fourth bevel gear is meshed with the third bevel gear, and a fifth bevel gear is fixed at the other end of the seventh rotating shaft, and the fifth bevel gear is meshed with the first bevel gear.

[0013] Preferably, the third transmission structure includes two fourth fixed plates, the two fourth fixed plates are symmetrically fixed on both sides of the top surface of the barrel, the two fourth fixed plates are penetrated by the same eighth rotating shaft, the eighth rotating shaft is rotatably connected with the contact point with the fourth fixed plates through a bearing, two seventh cylinders are sleeved on the eighth rotating shaft, fifth connecting blocks are respectively fixed on both sides of the bottom end of the seventh cylinder, the bottom end of the fifth connecting block is fixedly connected to the top surface of the barrel, the seventh cylinder is rotatably connected with the eighth rotating shaft through a bearing, the two seventh cylinders are sleeved with the eighth cylinder, and the eighth cylinder The body is arranged between the two fifth connecting blocks of the seventh cylinder, and the eighth cylinder is rotatably connected to the seventh cylinder through a bearing, a sixth bevel gear is fixedly installed on the eighth rotating shaft between the two seventh cylinders, a second connecting rod is fixedly fixed on the same side of the two eighth cylinders, a ninth cylinder is fixedly connected between the two second connecting rods, a ninth rotating shaft is sleeved in the ninth cylinder, and the ninth rotating shaft is rotatably connected to the ninth cylinder through a bearing, third limiting rings are respectively fitted on both sides of the ninth cylinder, the third limiting ring is fixedly sleeved on the ninth rotating shaft, and a third limiting ring is fixed at one end of the ninth rotating shaft A seventh bevel gear is meshed with the sixth bevel gear, a fourth guide cylinder is sleeved on the other end of the ninth rotating shaft, the fourth guide cylinder is slidably connected to the ninth rotating shaft, a second guide slot is opened on the inner wall of the fourth guide cylinder, a second slider is slidably arranged in the second guide slot, the second slider is fixedly connected to the ninth rotating shaft, an eighth bevel gear is fixed to the side end of the fourth guide cylinder, the eighth bevel gear is meshed with the third bevel gear, a tenth cylinder is sleeved on the fourth guide cylinder, the tenth cylinder is rotatably connected to the fourth guide cylinder through a bearing, and both sides of the tenth cylinder are respectively fixed A third connecting rod is provided, and an eleventh cylinder is fixed to the side ends of the two third connecting rods respectively, and the two eleventh cylinders are respectively sleeved on the two sixth cylinders, and the eleventh cylinder is rotatably connected with the sixth cylinder through a bearing, and seventh pulleys are fixed to both ends of the eighth rotating shaft respectively, and the first pulley is connected to the seventh pulley through a belt, and an eighth pulley is fixedly installed on the eighth rotating shaft, and the second pulley is connected to the eighth pulley through a belt, and fourth limiting rings are respectively fitted on both sides of the tenth cylinder, and the fourth limiting ring is fixedly sleeved on the fourth guide cylinder.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The device is provided with a soil transverse dividing structure, a soil longitudinal block cutting device and a soil block crushing structure. When the tractor slowly pulls the device forward, the soil transverse dividing structure can leave a transverse groove on the surface of the cultivated land, the soil longitudinal block cutting device can divide the ground between two adjacent transverse grooves left on the cultivated land after the soil transverse dividing structure works into multiple blocks, and the soil block crushing structure can crush the soil blocks cut into blocks after the soil transverse dividing structure and the soil longitudinal block cutting device work, and the crushed soil is discharged from the through holes on the arc-shaped soil screening plate. In this way, when the device is used for land preparation, the cultivated land can be cut into small blocks first, and then the soil blocks are shoveled up from the bottom of the block blocks and crushed, thereby effectively achieving the purpose of evenly crushing the surface planting soil layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural diagram of the structure of the present invention; Figure 2 is a top view of the second frame and the third frame in the structure of the present invention; Figure 3 The structure of the present invention Figure 2 A partial enlarged view of; Figure 4 The structure of the present invention Figure 2 B is a partial enlarged view; Figure 5 The structure of the present invention Figure 2 A partial enlarged view of C; Figure 6 is a three-dimensional diagram of the first frame in the structure of the present invention; Figure 7 is a stereoscopic diagram of the soil transverse division structure in the structure of the present invention; Figure 8 is a three-dimensional diagram of a soil longitudinal cutting device in the structure of the present invention; Fig. 9 It is a three-dimensional diagram of the soil block crushing structure in the structure of the present invention; Fig.10 The structure of the present invention Fig. 9 Partial structural cross-sectional view.

[0016] In the figure: first frame 1, first support plate 2, walking wheel 3, hydraulic cylinder 4, second frame 5, first guide rod 6, traction rod 7, third frame 8, soil block crushing structure 9, soil transverse segmentation structure 10, soil longitudinal block cutting device 11, transmission structure assembly 12, first transmission structure 13, second transmission structure 14, third transmission structure 15, barrel 16, second guide rod 17, stopper 18, first spring 19, first rotating shaft 20, first pulley 21, soil crushing plate 22, arc-shaped soil screening plate 23, through hole 24, first fixing block 25, first guide cylinder 26, third guide rod 27, first connecting block 28, second spring 29, soil inlet 30, shovel plate 31, partition plate 32, support plate 33, arc plate 34, second pulley 35, fourth guide rod 36, second rotating shaft 37, L-shaped connecting rod 38, elliptical moving block 39, push rod 40, first fixed plate 41, roller 42, cutting plate 43, third pulley 44, second fixed plate 45, third rotating shaft 46, cutting wheel 47, fourth pulley 48, arc cover 49, fourth rotating shaft 50, fifth pulley 51, first cylinder 52, second connecting block 53, second cylinder 54, first bevel gear 55, first connecting rod 56, third cylinder 57, fifth rotating shaft 58, first limiting ring 59, second bevel gear 60, second guide cylinder 61, first guide slide 62, first slider 63, connecting piece 64, fourth cylinder 65, second limiting ring 66, third connecting block 67, fifth guide rod 68, retaining ring 69, third guide cylinder 70, fifth cylinder 71, guide strip 72, sixth rotating shaft 73, sixth pulley 74, sixth cylinder 75, fourth connecting block 76, third bevel gear 77, third fixing plate 78 , seventh rotating shaft 79, fourth bevel gear 80, fifth bevel gear 81, fourth fixed plate 82, eighth rotating shaft 83, seventh cylinder 84, fifth connecting block 85, eighth cylinder 86, sixth bevel gear 87, second connecting rod 88, ninth cylinder 89, ninth rotating shaft 90, third limiting ring 91, seventh bevel gear 92, fourth guide cylinder 93, second guide slide groove 94, second slider 95, eighth bevel gear 96, tenth cylinder 97, third connecting rod 98, eleventh cylinder 99, seventh pulley 100, eighth pulley 101, fourth limiting ring 102. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10As shown, an agricultural tillage machine comprises a first frame 1, wherein first support plates 2 are respectively fixed at the four corners of the first frame 1, and each side wall of the first support plate 2 is provided with a walking wheel 3, and the central axis of the walking wheel 3 is rotatably connected to the first support plate 2 through a bearing, and two hydraulic cylinders 4 are symmetrically fixedly installed at the center of the top surface of the first frame 1, and the telescopic ends of the two hydraulic cylinders 4 penetrate the first frame 1 and are fixed with the same second frame 5, and first guide rods 6 are respectively fixed at the four corners of the top surface of the second frame 5, and the top end of the first guide rod 6 penetrates the first frame 1 and is slidably connected with the contact part thereof, and a traction rod 7 fixedly connected to the agricultural vehicle is hinged on one side of the second frame 5 through a pin shaft, and a second guide rod 6 is fixed on the other side of the second frame 5. Three frames 8, a soil crushing structure 9 is installed at the bottom end of the third frame 8, a soil transverse dividing structure 10 is fixedly installed on one side of the bottom end of the second frame 5, a soil longitudinal cutting device 11 is fixedly installed on the other side of the bottom end of the second frame 5, a transmission structure assembly 12 is fixedly installed on the second frame 5, and the transmission structure assembly 12 consists of a first transmission structure 13, a second transmission structure 14 and a third transmission structure 15, the soil transverse dividing structure 10 is transmission-connected to the transmission shaft of the agricultural vehicle through the first transmission structure 13, the soil longitudinal cutting device 11 is transmission-connected to the first transmission structure 13 through the second transmission structure 14, and the soil crushing structure 9 is transmission-connected to the second transmission structure 14 through the third transmission structure 15.

[0018] The soil crushing structure 9 includes a barrel 16, and four second guide rods 17 are symmetrically fixed on the top of the barrel 16 in pairs. The top of the second guide rod 17 penetrates the third frame 8 and is fixed with a stopper 18. The second guide rod 17 is slidably connected with the third frame 8 at the contact point. A first spring 19 is sleeved on each second guide rod 17 between the bottom surface of the third frame 8 and the top of the barrel 16. A first rotating shaft 20 is provided in the barrel 16. The axis of the first rotating shaft 20 is consistent with the axis of the barrel 16. The two ends of the first rotating shaft 20 respectively penetrate the inner walls of both sides of the barrel 16 and are respectively fixed with first pulleys 21. The first rotating shaft 20 is rotatably connected with the contact point of the barrel 16 through a bearing. The first pulley 21 is transmission-connected to the third transmission structure 15 through a belt. A plurality of soil crushing plates 22 are hinged on the first rotating shaft 20 in the barrel 16 through a pin shaft. The plurality of soil crushing plates 22 are evenly distributed on the first rotating shaft 20. A mounting groove is provided on one side of the bottom of the drum 16, in which an arc-shaped soil screening plate 23 is slidably installed, and a plurality of through holes 24 are evenly provided on the arc-shaped soil screening plate 23. First fixing blocks 25 are respectively fixed at both ends of the outer arc surface of the arc-shaped soil screening plate 23, and first guide cylinders 26 are respectively fixed on the opposite sides of the two first fixing blocks 25. A third guide rod 27 is slidably provided in the first guide cylinder 26, and both ends of the third guide rod 27 extend out of the first guide cylinder 26 and are respectively fixed with first connecting blocks 28, and the first connecting block 28 is fixedly connected to the outer wall of the drum 16, and a second spring 29 is fixed between the first guide cylinder 26 and the first connecting block 28, and the second spring 29 is sleeved on the third guide rod 27. A soil inlet 30 is provided on the other side of the bottom of the drum 16, and a shovel board 31 is fixed at the bottom end of the soil inlet 30, and the shovel board 31 is inclined, and a plurality of partitions 32 are evenly fixed on the top surface of the shovel board 31.

[0019] Two support plates 33 are fixed symmetrically on the top of the drum 16, and an arc plate 34 and a second pulley 35 are arranged between the two support plates 33. The inner arc surface of the arc plate 34 is slidably arranged in contact with the outer wall of the drum 16. A fourth guide rod 36 is penetrated through the arc plate 34, and the fourth guide rod 36 is slidably connected to the arc plate 34. Both ends of the fourth guide rod 36 are fixedly connected to the two support plates 33 respectively. The second pulley 35 is arranged at the upper end of the arc plate 34, and a second rotating shaft 37 is penetrated at the axis of the second pulley 35. The second rotating shaft 37 Both ends are rotatably connected to the two support plates 33 through bearings, the second pulley 35 is transmission-connected to the third transmission structure 15 through a belt, an L-shaped connecting rod 38 is fixed at the center of the outer arc surface of the arc plate 34, an elliptical moving block 39 is fixed to the top of the L-shaped connecting rod 38, and two push rods 40 for pushing the elliptical moving block 39 are fixed on the second rotating shaft 37. The two push rods 40 are arranged on both sides of the second rotating shaft 37, and the two push rods 40 push the elliptical moving block 39 from both sides of the elliptical moving block 39 respectively as the second rotating shaft 37 rotates.

[0020] The soil transverse division structure 10 includes two first fixed plates 41, the top of the first fixed plates 41 is fixedly connected to the bottom of the second frame 5, a roller 42 is provided between the two first fixed plates 41, three cutting plates 43 are fixed on the outer wall of the roller 42, and the three cutting plates 43 are evenly distributed on the outside of the roller 42. Both ends of the roller 42 penetrate the first fixed plates 41 and are respectively fixed with third pulleys 44. The roller 42 is rotatably connected to the contact point of the first fixed plate 41 through a bearing, and the third pulley 44 is transmission-connected to the first transmission structure 13 through a belt.

[0021] The soil longitudinal cutting device 11 includes two second fixed plates 45, the top of the second fixed plates 45 is fixedly connected to the bottom of the second frame 5, a third rotating shaft 46 is provided between the two second fixed plates 45, a plurality of cutting wheels 47 are equidistantly installed on the third rotating shaft 46, the bottom end of the cutting wheel 47 is on the same horizontal line as the bottom end of the shovel plate 31, and the number of the cutting wheels 47 is equal to the number of the partitions 32, each of the cutting wheels 47 is arranged corresponding to a partition 32, the two ends of the third rotating shaft 46 respectively penetrate the two second fixed plates 45 and are respectively fixed with fourth pulleys 48, the third rotating shaft 46 is rotatably connected to the contact point of the second fixed plate 45 through a bearing, the fourth pulley 48 is transmission-connected to the second transmission structure 14 through a belt, and the upper ends of the plurality of cutting wheels 47 are provided with the same arc cover 49, and the two ends of the arc cover 49 are respectively fixedly connected to the two second fixed plates 45.

[0022] The first transmission structure 13 includes a fourth rotating shaft 50, both ends of the fourth rotating shaft 50 respectively penetrate the second frame 5 and are rotatably connected by bearings at the contact points, and fifth pulleys 51 are fixed to both ends of the fourth rotating shaft 50, and the third pulley 44 is transmission-connected to the fifth pulley 51 through a belt, and two first cylinders 52 are sleeved on the fourth rotating shaft 50, and second connecting blocks 53 are respectively fixed on both sides of the bottom end of the first cylinder 52, and the bottom end of the second connecting block 53 is fixedly connected to the second frame 5, and the first cylinder 52 is rotatably connected to the fourth rotating shaft 50 through bearings, and the two first cylinders 52 are sleeved with second cylinders 54, and the second cylinders 54 are arranged on the first The second cylinder 54 is rotatably connected to the first cylinder 52 through a bearing, and a first bevel gear 55 is fixedly installed on the fourth rotating shaft 50 between the two first cylinders 52. A first connecting rod 56 is fixedly fixed on the same side of the two second cylinders 54. A third cylinder 57 is fixedly connected between the two first connecting rods 56. A fifth rotating shaft 58 is sleeved in the third cylinder 57. The fifth rotating shaft 58 is rotatably connected to the third cylinder 57 through a bearing. First limiting rings 59 are respectively attached to both sides of the third cylinder 57. The first limiting ring 59 is fixedly sleeved on the fifth rotating shaft 58. A second bevel gear 60 is fixed on one end of the fifth rotating shaft 58. The second bevel gear 60 is meshed with the first bevel gear 55. The other end of the fifth rotating shaft 58 is sleeved with a second guide cylinder 61. The second guide cylinder 61 is slidably connected with the fifth rotating shaft 58. A first guide slot 62 is provided on the inner wall of the second guide cylinder 61. A first slider 63 is slidably provided in the first guide slot 62. The first slider 63 is fixedly connected with the fifth rotating shaft 58. A connecting piece 64 connected to the transmission shaft of the agricultural vehicle is fixedly provided at the side end of the second guide cylinder 61. A fourth cylinder 65 is sleeved on the fifth rotating shaft 58. The fourth cylinder 65 is rotatably connected with the fifth rotating shaft 58 through a bearing. Second limiting rings 66 are respectively attached to both sides of the fourth cylinder 65. The second limiting ring 66 is fixedly sleeved on the fifth rotating shaft 58, and third connecting blocks 67 are fixed on both sides of the fourth cylinder 65, and fifth guide rods 68 are fixed on the bottom ends of the two third connecting blocks 67, and retaining rings 69 are fixed on the bottom ends of the two fifth guide rods 68. The two fifth guide rods 68 are sleeved with a third guide cylinder 70, and the fifth guide rod 68 is slidably connected to the third guide cylinder 70. A fifth cylinder 71 is fixedly connected between the two third guide cylinders 70, and the fifth cylinder 71 is slidably sleeved on the traction rod 7. Guide strips 72 are fixed on both sides of the traction rod 7, and sliding grooves for the two guide strips 72 to pass through are respectively opened on the inner walls on both sides of the fifth cylinder 71.

[0023] The second transmission structure 14 includes a sixth rotating shaft 73, both ends of the sixth rotating shaft 73 respectively penetrate the second frame 5 and are rotatably connected by bearings at the contact points, and both ends of the sixth rotating shaft 73 are respectively fixed with sixth pulleys 74, the fourth pulley 48 is transmission-connected to the sixth pulley 74 by a belt, two sixth cylinders 75 are sleeved on the sixth rotating shaft 73, and fourth connecting blocks 76 are respectively fixed on both sides of the bottom end of the sixth cylinder 75, and the bottom end of the fourth connecting block 76 is fixedly connected to the second frame 5, the sixth cylinder 75 is rotatably connected to the sixth rotating shaft 73 by bearings, and the two sixth cylinders A third bevel gear 77 is fixedly sleeved on the sixth rotating shaft 73 between 75, two third fixing plates 78 are provided on one side of the sixth rotating shaft 73, and the third fixing plate 78 is fixed on the second frame 5. The same seventh rotating shaft 79 is horizontally penetrated through the two third fixing plates 78, and the seventh rotating shaft 79 is rotatably connected to the contact point of the third fixing plate 78 through a bearing, and a fourth bevel gear 80 is fixed on one end of the seventh rotating shaft 79, and the fourth bevel gear 80 is meshed with the third bevel gear 77, and a fifth bevel gear 81 is fixed on the other end of the seventh rotating shaft 79, and the fifth bevel gear 81 is meshed with the first bevel gear 55.

[0024] The third transmission structure 15 includes two fourth fixed plates 82, and the two fourth fixed plates 82 are symmetrically fixed on both sides of the top surface of the barrel 16. The same eighth rotating shaft 83 is penetrated by the two fourth fixed plates 82, and the eighth rotating shaft 83 is rotatably connected with the contact point of the fourth fixed plates 82 through a bearing. Two seventh cylinders 84 are sleeved on the eighth rotating shaft 83, and fifth connecting blocks 85 are respectively fixed on both sides of the bottom end of the seventh cylinder 84. The bottom end of the fifth connecting block 85 is fixedly connected to the top surface of the barrel 16, and the seventh cylinder 84 is rotatably connected to the eighth rotating shaft 83 through a bearing. The two seventh cylinders 84 are sleeved with an eighth cylinder 86, and the eighth cylinder 86 is arranged on the seventh cylinder The eighth cylinder 86 is rotatably connected to the seventh cylinder 84 through a bearing, a sixth bevel gear 87 is fixedly installed on the eighth rotating shaft 83 between the two seventh cylinders 84, a second connecting rod 88 is fixedly fixed on the same side of the two eighth cylinders 86, a ninth cylinder 89 is fixedly connected between the two second connecting rods 88, a ninth rotating shaft 90 is sleeved in the ninth cylinder 89, and the ninth rotating shaft 90 is rotatably connected to the ninth cylinder 89 through a bearing, third limiting rings 91 are respectively fitted on both sides of the ninth cylinder 89, the third limiting ring 91 is fixedly sleeved on the ninth rotating shaft 90, and a seventh bevel gear 92 is fixed on one end of the ninth rotating shaft 90, The seventh bevel gear 92 is meshed with the sixth bevel gear 87, a fourth guide cylinder 93 is sleeved on the other end of the ninth rotating shaft 90, the fourth guide cylinder 93 is slidably connected with the ninth rotating shaft 90, a second guide slot 94 is provided on the inner wall of the fourth guide cylinder 93, a second slider 95 is slidably provided in the second guide slot 94, the second slider 95 is fixedly connected with the ninth rotating shaft 90, an eighth bevel gear 96 is fixed to the side end of the fourth guide cylinder 93, the eighth bevel gear 96 is meshed with the third bevel gear 77, a tenth cylinder body 97 is sleeved on the fourth guide cylinder 93, the tenth cylinder body 97 is rotatably connected with the fourth guide cylinder 93 through a bearing, and the tenth cylinder body 97 is respectively fixed on both sides of the tenth cylinder body 97. Three connecting rods 98, the side ends of the two third connecting rods 98 are respectively fixed with an eleventh cylinder 99, the two eleventh cylinders 99 are respectively sleeved on the two sixth cylinders 75, and the eleventh cylinder 99 is rotatably connected with the sixth cylinder 75 through a bearing, the second ends of the eighth rotating shaft 83 are respectively fixed with a seventh pulley 100, the first pulley 21 is connected to the seventh pulley 100 through a belt, the eighth rotating shaft 83 is fixedly mounted with an eighth pulley 101, the second pulley 35 is connected to the eighth pulley 101 through a belt, and the tenth cylinder 97 is respectively fitted with a fourth limiting ring 102 on both sides, and the fourth limiting ring 102 is fixedly sleeved on the fourth guide cylinder 93.

[0025] Working principle: When the present invention is used, the traction rod 7 is hingedly connected to the agricultural vehicle, and the transmission structure assembly 12 is connected to the transmission shaft of the agricultural vehicle through the connecting piece 64, so that the agricultural vehicle can pull the device to move through the traction rod 7, and when the transmission shaft of the agricultural vehicle is running, it can drive the transmission structure assembly 12 to run. When the transmission structure assembly 12 is running, the first transmission structure 13 can drive the soil transverse dividing structure 10 to run, the second transmission structure 14 can drive the soil longitudinal cutting device 11 to run, and the third transmission structure 15 can drive the soil block crushing structure 9 to run. The device is pulled to the cultivated land by an agricultural vehicle, and then the telescopic end of the hydraulic cylinder 4 is controlled to extend. As the telescopic end of the hydraulic cylinder 4 extends, the bottom end of the cutting plate 43 at the lowest end of the soil transverse dividing structure 10, the bottom end of the cutting wheel 47 of the soil longitudinal cutting device 11 and the bottom end of the shovel plate 31 of the soil block crushing structure 9 are in contact with the ground at the same time. As the telescopic end of the hydraulic cylinder 4 continues to extend, the bottom end of the cutting plate 43 at the lowest end of the soil transverse dividing structure 10 and the bottom end of the cutting wheel 47 of the soil longitudinal cutting device 11 are inserted into the soil layer, and the bottom end of the shovel plate 31 of the soil block crushing structure 9 is pressed against the ground and does not move. The soil block crushing structure 9 squeezes the first spring 19 and rises as a whole. At this time, the device is slowly pulled forward by the tractor, and the tractor transmission shaft connected to the transmission structure assembly 12 is started at the same time, so that the soil transverse dividing structure 10, the soil longitudinal cutting device 11 and the soil block crushing structure 9 are in operation. When the soil transverse dividing structure 10 is in operation, the roller 42 rotates slowly. During the slow rotation of the roller 42, the three cutting plates 43 are inserted into the soil layer in turn. , leaving transverse grooves on the surface of the cultivated land. When the soil longitudinal block cutting device 11 is running, the third shaft 46 drives the multiple cutting wheels 47 to rotate quickly and cut the soil layer longitudinally, dividing the ground between two adjacent transverse grooves left on the cultivated land after the soil transverse dividing structure 10 works into multiple pieces. When the soil block crushing structure 9 is running, the first shaft 20 drives the soil crushing plate 22 to rotate at a high speed. At the same time, as the device moves forward, the soil block crushing structure 9 is pressed down by the first spring 19, and the bottom end of the shovel plate 31 is inserted into the soil layer, After the soil transverse dividing structure 10 and the soil longitudinal cutting device 11 work, the soil blocks cut into blocks are sent into the barrel 16 through the shovel plate 31. At this time, the soil crushing plate 22 in the barrel 16 crushes the soil blocks, and the crushed soil is discharged from the through holes 24 on the arc-shaped soil screening plate 23 at the bottom of the barrel 16. In this way, when the device is used for land preparation, it can first cut the cultivated land into small blocks, and then shovel the soil blocks from the bottom of the block blocks and crush them, thereby effectively achieving the purpose of uniformly crushing the surface planting soil layer.When the third transmission structure 15 is running, it synchronously drives the second rotating shaft 37 to rotate. When the second rotating shaft 37 rotates, the two push rods 40 rotate with the second rotating shaft 37 and respectively scrape and push the elliptical moving block 39 back and forth from both sides. After each time the elliptical moving block 39 is pushed once by the push rod 40, it is quickly reset under the action of the second spring 29, and then it will be pushed back and forth by the two push rods 40. In this way, when the elliptical moving block 39 is pushed back and forth, the arc-shaped soil screening plate 23 synchronously swings left and right, which can accelerate the soil screening speed of the arc-shaped soil screening plate 23 and effectively avoid the blockage of the through holes 24 on the arc-shaped soil screening plate 23.

[0026] When the transmission structure assembly 12 is driven by the agricultural vehicle transmission shaft to run, the agricultural vehicle transmission shaft drives the second guide cylinder 61 to rotate, and the second guide cylinder 61 drives the fifth shaft 58 to rotate. The fifth shaft 58 is slidably connected with the second guide cylinder 61, and the first slider 63 plays a limiting role to prevent the fifth shaft 58 from rotating with the second guide cylinder 61. When the device passes through an uneven ground, the fifth shaft 58 of the device can slide in the second guide cylinder 61. When the fifth shaft 58 rotates, the third cylinder 57 and the fourth cylinder 65 play a guiding and fixing role on it. The first bevel gear 55 rotates by meshing with the second bevel gear 60, and the first bevel gear 55 drives the fourth rotating shaft 50 to rotate. The fourth rotating shaft 50 drives the third pulley 44 to rotate through the fifth pulley 51, and the third pulley 44 then synchronously drives the third pulley 44 to rotate, so that the soil transverse dividing structure 10 operates. At the same time, the first bevel gear 55 meshes with the fifth bevel gear 81 to rotate, and the fifth bevel gear 81 drives the fourth bevel gear 80 to rotate through the seventh rotating shaft 79, and the fourth bevel gear 80 meshes with the third bevel gear 77 to rotate, and the third bevel gear 77 drives the sixth rotating shaft 73 The sixth rotating shaft 73 drives the sixth pulley 74 to rotate, and the sixth pulley 74 drives the fourth pulley 48 through the belt, so that the soil longitudinal cutting device 11 operates, and the third bevel gear 77 engages with the eighth bevel gear 96 to rotate at the same time, and the eighth bevel gear 96 drives the fourth guide cylinder 93 to rotate, and the fourth guide cylinder 93 drives the ninth rotating shaft 90 to rotate, and the ninth rotating shaft 90 is slidably connected with the fourth guide cylinder 93, and the second slider 95 plays a limiting role to prevent the ninth rotating shaft 90 from rotating with the fourth guide cylinder 93, and the soil block crushing structure 9 contacts the ground and squeezes the first When the spring 19 rises and falls, the ninth rotating shaft 90 can slide in the fourth guide cylinder 93, and the ninth rotating shaft 90 rotates by meshing the sixth bevel gear 87 through the seventh bevel gear 92. The sixth bevel gear 87 drives the eighth rotating shaft 83 to rotate, and the eighth rotating shaft 83 drives the second pulley 35 to rotate through the eighth pulley 101, so that the two push rods 40 rotate with the second rotating shaft 37 and respectively rub and push the elliptical moving block 39 back and forth from both sides. At the same time, the eighth rotating shaft 83 drives the first pulley 21 to rotate through the seventh pulley 100, so that the soil crushing structure 9 operates.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An agricultural tillage machine, comprising a first frame (1), wherein first support plates (2) are respectively fixed at four corners of the first frame (1), and each of the side walls of the first support plates (2) is provided with a running wheel (3), wherein the central axis of the running wheel (3) is rotatably connected to the first support plate (2) via a bearing, and characterized in that; Two hydraulic cylinders (4) are symmetrically fixedly mounted at the center of the top surface of the first frame (1); the telescopic ends of the two hydraulic cylinders (4) penetrate the first frame (1) and are fixed to the same second frame (5); first guide rods (6) are respectively fixed at the four corners of the top surface of the second frame (5); the top end of the first guide rod (6) penetrates the first frame (1) and is slidably connected to the contact portion with the first frame (1); a traction rod (7) fixedly connected to the agricultural vehicle is hingedly connected to one side of the second frame (5) via a pin shaft; a third frame (8) is fixedly mounted on the other side of the second frame (5); a soil crushing structure (9) is installed at the bottom end of the third frame (8); and a soil transverse splitting structure (9) is fixedly mounted on one side of the bottom end of the second frame (5). The second frame (5) has a structure (10), a soil longitudinal block cutting device (11) is fixedly mounted on the other side of the bottom end thereof, a transmission structure assembly (12) is fixedly mounted on the second frame (5), the transmission structure assembly (12) is composed of a first transmission structure (13), a second transmission structure (14) and a third transmission structure (15), the soil transverse dividing structure (10) is transmission-connected to a transmission shaft of an agricultural vehicle via the first transmission structure (13), the soil longitudinal block cutting device (11) is transmission-connected to the first transmission structure (13) via the second transmission structure (14), and the soil block crushing structure (9) is transmission-connected to the second transmission structure (14) via the third transmission structure (15).

2. The agricultural tillage and land preparation machine according to claim 1, characterized in that: The soil crushing structure (9) comprises a round barrel (16), four second guide rods (17) are symmetrically fixed to the top of the round barrel (16), the tops of the second guide rods (17) penetrate the third frame (8) and are fixed with a stopper (18), the second guide rods (17) are slidably connected to the third frame (8) at their contact points, each second guide rod (17) between the bottom surface of the third frame (8) and the top of the round barrel (16) is sleeved with a first spring (19), and a first rotating shaft (20) is provided inside the round barrel (16), the first rotating shaft The axis of the first rotating shaft (20) is consistent with the axis of the drum (16); the two ends of the first rotating shaft (20) respectively penetrate the inner walls of the drum (16) on both sides and are respectively fixed with first pulleys (21); the first rotating shaft (20) is rotatably connected to the contact point of the drum (16) through a bearing; the first pulley (21) is transmission-connected to the third transmission structure (15) through a belt; a plurality of soil-breaking plates (22) are hingedly connected to the first rotating shaft (20) in the drum (16) through a pin shaft; the plurality of soil-breaking plates (22) are evenly distributed on the first rotating shaft (20); A mounting groove is provided at one side of the bottom of the drum (16), and a curved soil screening plate (23) is slidably mounted in the mounting groove. A plurality of through holes (24) are evenly provided on the curved soil screening plate (23). First fixing blocks (25) are respectively fixed at both ends of the outer curved surface of the curved soil screening plate (23), and first guide cylinders (26) are respectively fixed on opposite sides of the two first fixing blocks (25). A third guide rod (27) is slidably mounted in the first guide cylinder (26), and both ends of the third guide rod (27) extend out of the first guide cylinder (26) and are respectively A first connecting block (28) is fixedly provided, the first connecting block (28) being fixedly connected to the outer wall of the barrel (16), a second spring (29) being fixedly provided between the first guide cylinder (26) and the first connecting block (28), the second spring (29) being sleeved on the third guide rod (27), a soil inlet (30) being provided at the other side of the bottom of the barrel (16), a soil shoveling plate (31) being fixedly provided at the bottom end of the soil inlet (30), the soil shoveling plate (31) being arranged in an inclined manner, and a plurality of partitions (32) being evenly fixedly provided on the top surface of the soil shoveling plate (31).

3. The agricultural tillage and land preparation machine according to claim 2, characterized in that: Two support plates (33) are fixed symmetrically on the top of the drum (16), an arc plate (34) and a second pulley (35) are arranged between the two support plates (33), the inner arc surface of the arc plate (34) is slidably arranged in contact with the outer wall of the drum (16), a fourth guide rod (36) is passed through the arc plate (34), the fourth guide rod (36) is slidably connected to the arc plate (34), and the two ends of the fourth guide rod (36) are respectively fixedly connected to the two support plates (33), the second pulley (35) is arranged at the upper end of the arc plate (34), a second rotating shaft (37) is passed through the axis of the second pulley (35), and the second rotating shaft (37) is 7) Both ends are rotatably connected to the two support plates (33) via bearings, the second pulley (35) is transmission-connected to the third transmission structure (15) via a belt, an L-shaped connecting rod (38) is fixed at the center of the outer arc surface of the arc plate (34), an elliptical moving block (39) is fixed at the top of the L-shaped connecting rod (38), and two push rods (40) for pushing the elliptical moving block (39) are fixed on the second rotating shaft (37), the two push rods (40) are arranged on both sides of the second rotating shaft (37), and the two push rods (40) push the elliptical moving block (39) from both sides of the elliptical moving block (39) respectively as the second rotating shaft (37) rotates.

4. The agricultural tillage and land preparation machine according to claim 3, characterized in that: The soil transverse dividing structure (10) comprises two first fixing plates (41), the top of the first fixing plates (41) being fixedly connected to the bottom of the second frame (5), a roller (42) being provided between the two first fixing plates (41), three cutting plates (43) being fixed on the outer wall of the roller (42), the three cutting plates (43) being evenly distributed on the outer side of the roller (42), both ends of the roller (42) respectively penetrating the first fixing plates (41) and respectively fixed with third pulleys (44), the roller (42) being rotationally connected to the contact point of the first fixing plate (41) via a bearing, and the third pulley (44) being transmission-connected to the first transmission structure (13) via a belt.

5. The agricultural tillage and land preparation machine according to claim 4, characterized in that: The soil longitudinal block cutting device (11) comprises two second fixing plates (45), the top of the second fixing plates (45) being fixedly connected to the bottom of the second frame (5), a third rotating shaft (46) being arranged between the two second fixing plates (45), a plurality of cutting wheels (47) being equidistantly mounted on the third rotating shaft (46), the bottom ends of the cutting wheels (47) being on the same horizontal line as the bottom ends of the shovel plates (31), and the number of the cutting wheels (47) being equal to the number of the partition plates (32), and each of the cutting wheels (47) being arranged on the same horizontal line as the bottom ends of the shovel plates (31). A partition plate (32) is arranged correspondingly, and both ends of the third rotating shaft (46) respectively penetrate the two second fixed plates (45) and are respectively fixed with fourth pulleys (48), the third rotating shaft (46) is rotatably connected to the contact point with the second fixed plate (45) through a bearing, and the fourth pulley (48) is transmission-connected to the second transmission structure (14) through a belt, and the upper ends of the plurality of cutting wheels (47) are provided with a same arc cover (49), and both ends of the arc cover (49) are respectively fixedly connected to the two second fixed plates (45).

6. The agricultural tillage and land preparation machine according to claim 5, characterized in that: The first transmission structure (13) comprises a fourth rotating shaft (50), the two ends of the fourth rotating shaft (50) respectively penetrate the second frame (5) and are rotatably connected at the contact points thereof via bearings, and the two ends of the fourth rotating shaft (50) are respectively fixed with fifth pulleys (51), the third pulley (44) is transmission-connected to the fifth pulley (51) via a belt, the fourth rotating shaft (50) is sleeved with two first cylinders (52), the two sides of the bottom end of the first cylinder (52) are respectively fixed with second connecting blocks (53), the bottom end of the second connecting block (53) is fixedly connected to the second frame (5), the first cylinder (52) is rotatably connected to the fourth rotating shaft (50) via bearings, and the two first cylinders (52) are sleeved with the second cylinder (53). 4), the second cylinder (54) is arranged between the two second connecting blocks (53) of the first cylinder (52), and the second cylinder (54) is rotatably connected to the first cylinder (52) via a bearing, a first bevel gear (55) is fixedly mounted on the fourth rotating shaft (50) between the two first cylinders (52), a first connecting rod (56) is respectively fixed to the same side of the two second cylinders (54), a third cylinder (57) is fixedly connected between the two first connecting rods (56), a fifth rotating shaft (58) is sleeved in the third cylinder (57), the fifth rotating shaft (58) is rotatably connected to the third cylinder (57) via a bearing, first limiting rings (59) are respectively fitted on both sides of the third cylinder (57), and the first limiting rings (59) are respectively fitted on both sides of the third cylinder (57). The fifth rotating shaft (58) is fixedly sleeved on the fifth rotating shaft (58), and a second bevel gear (60) is fixed on one end of the fifth rotating shaft (58), and the second bevel gear (60) is meshed with the first bevel gear (55). A second guide cylinder (61) is sleeved on the other end of the fifth rotating shaft (58), and the second guide cylinder (61) is slidably connected to the fifth rotating shaft (58). A first guide groove (62) is provided on the inner wall of the second guide cylinder (61), and a first slide block (63) is slidably provided in the first guide groove (62), and the first slide block (63) is fixedly connected to the fifth rotating shaft (58). A connecting piece (64) connected to the transmission shaft of the agricultural vehicle is fixed on the side end of the second guide cylinder (61), and a fourth cylinder (61) is sleeved on the fifth rotating shaft (58). 65), the fourth cylinder (65) is rotatably connected to the fifth rotating shaft (58) through a bearing, second limiting rings (66) are respectively fitted on both sides of the fourth cylinder (65), the second limiting rings (66) are fixedly sleeved on the fifth rotating shaft (58), third connecting blocks (67) are respectively fixed on both sides of the fourth cylinder (65), fifth guide rods (68) are respectively fixed at the bottom ends of the two third connecting blocks (67), retaining rings (69) are respectively fixed at the bottom ends of the two fifth guide rods (68), and third guide cylinders (70) are sleeved on the two fifth guide rods (68), the fifth guide rod (68) is slidably connected to the third guide cylinder (70), and the fifth cylinder (71) is fixedly connected between the two third guide cylinders (70),The fifth cylinder (71) is slidably sleeved on the traction rod (7), guide bars (72) are respectively fixed on both sides of the traction rod (7), and sliding grooves for the two guide bars (72) to pass through are respectively opened on the inner walls on both sides of the fifth cylinder (71).

7. The agricultural tillage and land preparation machine according to claim 6, characterized in that: The second transmission structure (14) comprises a sixth rotating shaft (73), both ends of the sixth rotating shaft (73) respectively penetrate the second frame (5) and are rotatably connected at the contact points thereof via bearings, and both ends of the sixth rotating shaft (73) are respectively fixed with sixth pulleys (74), the fourth pulley (48) is transmission-connected to the sixth pulley (74) via a belt, two sixth cylinders (75) are sleeved on the sixth rotating shaft (73), both sides of the bottom end of the sixth cylinder (75) are respectively fixed with fourth connecting blocks (76), the bottom end of the fourth connecting block (76) is fixedly connected to the second frame (5), the sixth cylinder (75) is rotatably connected to the sixth rotating shaft (73) via bearings, and the two sixth cylinders (75) are ), a third bevel gear (77) is fixedly sleeved on a sixth rotating shaft (73) between the first and second frames (5), two third fixing plates (78) are provided on one side of the sixth rotating shaft (73), the third fixing plates (78) are fixed on the second frame (5), a same seventh rotating shaft (79) is transversely penetrated through the two third fixing plates (78), the seventh rotating shaft (79) is rotatably connected to the contact point of the third fixing plates (78) through a bearing, a fourth bevel gear (80) is fixed on one end of the seventh rotating shaft (79), the fourth bevel gear (80) is meshed with the third bevel gear (77), and a fifth bevel gear (81) is fixed on the other end of the seventh rotating shaft (79), the fifth bevel gear (81) is meshed with the first bevel gear (55).

8. The agricultural tillage and land preparation machine according to claim 7, characterized in that: The third transmission structure (15) comprises two fourth fixing plates (82), the two fourth fixing plates (82) being fixed symmetrically on both sides of the top surface of the barrel (16), the two fourth fixing plates (82) being provided with a same eighth rotating shaft (83) penetrating the two fourth fixing plates (82), the eighth rotating shaft (83) being rotationally connected to the contact point of the fourth fixing plates (82) via a bearing, two seventh cylinders (84) being sleeved on the eighth rotating shaft (83), the bottom ends of the seventh cylinders (84) being respectively fixed with fifth connecting blocks (85), the bottom ends of the fifth connecting blocks (85) being fixedly connected to the top surface of the barrel (16), the seventh cylinder (84) being rotationally connected to the eighth rotating shaft (83) via a bearing, the two seventh cylinders (84) being sleeved with the eighth cylinder ( 86), the eighth cylinder (86) is arranged between the two fifth connecting blocks (85) of the seventh cylinder (84), and the eighth cylinder (86) is rotatably connected to the seventh cylinder (84) through a bearing, a sixth bevel gear (87) is fixedly installed on the eighth rotating shaft (83) between the two seventh cylinders (84), a second connecting rod (88) is respectively fixed on the same side of the two eighth cylinders (86), a ninth cylinder (89) is fixedly connected between the two second connecting rods (88), a ninth rotating shaft (90) is sleeved in the ninth cylinder (89), the ninth rotating shaft (90) is rotatably connected to the ninth cylinder (89) through a bearing, and third limiting rings (91) are respectively fitted on both sides of the ninth cylinder (89), and the third limiting rings (91) is fixedly sleeved on the ninth rotating shaft (90), a seventh bevel gear (92) is fixedly mounted on one end of the ninth rotating shaft (90), the seventh bevel gear (92) is meshed with the sixth bevel gear (87), a fourth guide cylinder (93) is sleeved on the other end of the ninth rotating shaft (90), the fourth guide cylinder (93) is slidably connected to the ninth rotating shaft (90), a second guide groove (94) is provided on the inner wall of the fourth guide cylinder (93), a second slide block (95) is slidably disposed in the second guide groove (94), the second slide block (95) is fixedly connected to the ninth rotating shaft (90), an eighth bevel gear (96) is fixedly mounted on the side end of the fourth guide cylinder (93), the eighth bevel gear (96) is meshed with the third bevel gear (77), the fourth A tenth cylinder (97) is sleeved on the guide cylinder (93), and the tenth cylinder (97) is rotatably connected to the fourth guide cylinder (93) via a bearing. Third connecting rods (98) are fixed to both sides of the tenth cylinder (97), and an eleventh cylinder (99) is fixed to the side ends of the two third connecting rods (98). The two eleventh cylinders (99) are sleeved on the two sixth cylinders (75), and the eleventh cylinder (99) is rotatably connected to the sixth cylinder (75) via a bearing. Seventh pulleys (100) are fixed to both ends of the eighth rotating shaft (83), and the first pulley (21) is transmission-connected to the seventh pulley (100) via a belt. An eighth pulley (101) is fixedly mounted on the eighth rotating shaft (83).The second pulley (35) is connected to the eighth pulley (101) via a belt, and fourth limiting rings (102) are respectively attached to both sides of the tenth cylinder (97), and the fourth limiting ring (102) is fixedly sleeved on the fourth guide cylinder (93).

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