A wheeled tractor for agricultural sowing

Abstract

The present invention relates to the technical field of sowing tractors, and discloses a wheeled tractor for agricultural sowing, comprising a traction device, a suspension assembly and a sowing device, wherein the suspension assembly is connected between the traction device and the sowing device, and the sowing device comprises a bottom frame, a bottom frame arranged at the bottom of the bottom frame, a seeding assembly and a leveling assembly, and side frames arranged on both sides of the bottom frame. The wheeled tractor for agricultural sowing is provided with a seeding assembly, and when the device is started, the rotating wheel rolls on the ground, and the seeds in the storage hopper enter the inoculation groove above, and as the rotating wheel rotates, the seeds in the inoculation groove are put into the groove, so that the seed placement density is controlled by the inoculation grooves evenly spaced, so that a certain interval is maintained between the seeds, and at the same time, the seed placement is controlled by the rolling distance of the rotating wheel, so that when the device decelerates, the seed placement density is not affected, and the survival rate of the seeds can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of sowing tractors, and in particular to a wheeled tractor used for agricultural sowing. Background Art

[0002] A tractor is a self-propelled power machine used to tow and drive work machinery to complete various mobile operations. Tractors have the characteristics of strong power, traction ability, versatility, and adaptability to different environments. A seeding tractor is an efficient seeding machine with a seeding machine hung behind the tractor. Its appearance has greatly changed the agricultural production methods and efficiency, making large-scale agricultural operations possible; it can help farmers complete heavy physical labor more quickly and efficiently, and promote the modernization of agriculture.

[0003] The patent publication number CN116569689A discloses a sowing device capable of changing the sowing depth of wheat, comprising an exoskeleton, one side of which is fixedly connected with a connection part for articulating with a tractor; a main board slidably connected to the inside of the exoskeleton, a sowing unit being arranged below the main board; a support frame fixedly connected to the main board, a tillage knife for grooving the land being rotatably connected to the bottom of the support frame; a roller arranged below the exoskeleton and rotatably connected to the exoskeleton, which relates to the technical field of wheat sowing machines, wherein the main board moves downward to drive a straight tooth plate fixedly connected to the main board to move downward, the straight tooth plate moves an L-shaped tooth plate upward through the meshing action of gears, the L-shaped tooth plate moves upward to squeeze the horizontal plate to move upward, thereby making the outlet larger, thereby correspondingly increasing the outflow rate of the base fertilizer, that is, the deeper the wheat sowing depth, the more nutrients are required, and the more base fertilizer is required, so as to promote the smooth growth of wheat seeds.

[0004] The prior art has the following defects:

[0005] During sowing, the seeder pushes the seeds in the hopper into the inclined slide, and the seeds fall into the excavated grooves through the inclined slide. When sowing in this way, the seeds slide down continuously, which will cause the seed planting density to be too high. When the equipment starts and stops and changes direction, the moving speed of the equipment will decrease. In this way, during the distance of low-speed driving, the seed planting density will further increase, which will affect the later growth of the seeds and reduce the survival rate. Summary of the invention

[0006] In view of the problem that it is difficult to control the sowing density in the prior art, a wheeled tractor for agricultural sowing is proposed.

[0007] The present application provides a wheeled tractor for agricultural sowing, the purpose of which is to control the sowing density.

[0008] The technical scheme of the present invention is as follows: a wheeled tractor for agricultural sowing, comprising a traction device, a suspension assembly and a sowing device, wherein the suspension assembly is connected between the traction device and the sowing device, the sowing device comprises a bottom frame, a furrowing plow, a sowing assembly and a leveling assembly arranged at the bottom of the bottom frame, side frames arranged at both sides of the bottom frame, a material storage assembly arranged between the two side frames, and an auxiliary beam arranged at the inner side of the bottom frame, the sowing assembly comprises a main fixing frame arranged at the bottom of the bottom frame, an auxiliary fixing frame arranged at the bottom of the auxiliary beam, a card interface arranged at both sides of the auxiliary fixing frame and the main fixing frame, a through hole arranged to penetrate the auxiliary fixing frame and the main fixing frame, a rotating wheel arranged between the auxiliary fixing frame and the main fixing frame, an inoculation groove arranged outside the rotating wheel, a fixed shaft arranged inside the through hole, and a fixed sleeve arranged at one end of the fixed shaft extending out of the main fixing frame;

[0009] The bottom frame is in the shape of a Chinese scorpion, and the auxiliary beam array is distributed in the inner space surrounded by the bottom frame. Rotating shaft sleeves are provided on both sides of the rotating wheel, and the rotating shaft sleeves are clamped in the clamping interface. The fixed shaft passes through the rotating wheel and the rotating shaft sleeve. The rotating wheel is rotatably connected to the outside of the fixed shaft, and the fixed sleeve is threadedly connected to the through hole. The inoculation grooves are distributed in a circular array.

[0010] Further, the suspension assembly includes a connecting plate arranged at the rear end of the traction device, a connecting beam arranged at a side of the connecting plate away from the traction device, a supporting wheel arranged at the bottom of the connecting beam, and the connecting beam is welded to the bottom frame;

[0011] Furthermore, the leveling assembly includes rear mounting frames arranged at both ends of the bottom of the bottom frame, connecting arms arranged on the outside of the rear mounting frames, and a leveling rubber roller arranged between the two connecting arms.

[0012] Furthermore, a sliding hole is formed through the outer side of the fixing sleeve, and a handle is slidably connected to the inside of the sliding hole, and the length of the handle is not less than twice the length of the fixing sleeve.

[0013] Furthermore, the seeding assembly also includes an assembly groove arranged on the side of the rotating wheel, a connecting hole arranged between the assembly groove and the inoculation groove, a pushing rod arranged inside the inoculation groove, an extension rod arranged inside the assembly groove, a sealing plate at the opening of the assembly groove, and a positioning wheel arranged inside the assembly groove;

[0014] The pushing rod is threadedly connected to the extension rod, and the connection point is located in the assembly groove. The positioning wheel is fixedly clamped with the fixed shaft. The positioning wheel is divided into a protruding discharge area and a recessed feeding area. One end of the extension rod away from the pushing rod is fixedly connected to a counterweight block, and the counterweight block touches the surface of the positioning wheel.

[0015] Furthermore, the seeding assembly also includes a sliding bolt arranged on the outside of the extension rod, a control disk arranged inside the assembly groove, a control slide groove arranged on the surface of the control disk, a handle arranged on the side of the control slide groove close to the sealing plate, a movable opening arranged on the surface of the sealing plate, and a pressing handle arranged on the outside of the handle;

[0016] The sliding bolt extends into the control slide groove, the handle passes through the movable opening and extends to the outside of the assembly groove, a positioning groove is opened on the surface of the sealing plate, the pressing handle is inserted into the positioning groove, and the control slide groove is provided with three types: A, B, and C.

[0017] Furthermore, the material storage assembly includes a material storage hopper disposed between two side frames, a partition disposed inside the material storage hopper, a cover plate disposed on the top of the material storage hopper, and an external interface disposed at the bottom of the material storage hopper;

[0018] The partition divides the internal space of the storage hopper into two parts, and the rotating wheel is attached to the opening below the external interface.

[0019] Furthermore, an auxiliary feeding area is provided between the protruding area and the recessed area of ​​the positioning wheel.

[0020] Furthermore, the storage hopper is divided into two parts, the upper part is in the shape of a funnel that is wide at the top and narrow at the bottom, and the lower part is in the shape of a long strip.

[0021] Furthermore, a pedal is rotatably connected to one side of the bottom frame away from the connecting beam, and a limiting member is provided at the connection between the pedal and the bottom frame. The pedal rotates toward the connecting beam to an eleven-point state and rotates toward the opposite direction of the connecting beam to a three-point state. The pedal is located above the leveling rubber roller.

[0022] Beneficial effects of the present invention:

[0023] 1. By setting up the seeding component, when the equipment is started, the rotating wheel rolls on the ground, and the seeds in the storage hopper enter the inoculation groove above. As the rotating wheel rotates, the seeds in the inoculation groove are put into the groove. In this way, the seed placement density is controlled by the evenly spaced inoculation grooves, so that a certain interval is maintained between the seeds. At the same time, the seed placement is controlled by the rolling distance of the rotating wheel. In this way, when the equipment slows down, the seed placement density is not affected, which can effectively improve the survival rate of the seeds.

[0024] 2. The state of the push rod in the inoculation trough is controlled by the positioning wheel. When the inoculation trough and the push rod are located below the storage hopper, the seeds enter the inoculation trough, and then the inoculation trough begins to rotate downward. The push rod pushes to the outside of the inoculation trough to push the seeds out and close the inoculation trough. This not only prevents the seeds from getting stuck in the inoculation trough and unable to be put in, but also prevents soil from entering the inoculation trough, so that the equipment operation is always stable.

[0025] 3. The push rod is further controlled by controlling the slide. Rotating the assembly slot can put part of the push rod in a pushing state, and push the push rod to the opening of the inoculation slot, so that part of the inoculation slot is closed, increasing the distance between two adjacent inoculation slots, thereby changing the seed placement density, so that the equipment has a wider range of applicability to seeds and land.

[0026] 4. By setting the positioning wheel, the push rod has three changes when it moves. When the extension rod moves to the auxiliary feeding area, the push rod retracts part of it into the inoculation groove to collect part of the fertilizer. After reaching the recessed area, some seeds are added. In this way, the fertilizer and seeds can be mixed in proportion, which improves the survival rate of the seeds. At the same time, there is no need to apply fertilizer again, which reduces the work steps and is conducive to improving efficiency and saving costs.

[0027] 5. By setting the pedal, the storage hopper and the pedal, a storage space is formed above the bottom frame and on the side of the storage hopper, which can be used to place farm tools, seeds, and fertilizers. When not in use, the pedal is turned up to cover the items in the side storage space. When in use, the pedal is turned down and the operator can stand on it to assist the equipment in working. At the same time, the pedal is blocked above the leveling rubber roller to prevent the leveling rubber roller from rolling into the operator's clothes. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A perspective view of a wheeled tractor for agricultural sowing according to the present invention;

[0029] Figure 2 It is a schematic diagram of the suspension assembly of the present invention;

[0030] Figure 3 It is a schematic diagram of the seeding equipment of the present invention from above;

[0031] Figure 4 It is the schematic diagram below of the sowing device of the present invention;

[0032] Figure 5 This is a disassembled diagram of the sowing equipment of the present invention;

[0033] Figure 6 This is a disassembled diagram of the seeding assembly of the present invention;

[0034] Figure 7 It is a schematic diagram of the rotating wheel of the present invention;

[0035] Figure 8 This is a disassembled display diagram of one side of the rotating wheel of the present invention;

[0036] Fig. 9 This is a disassembled display diagram of the other side of the rotating wheel of the present invention;

[0037] Fig.10 This is a schematic diagram of the control slide of the present invention;

[0038] Fig.11 A bottom view of the sowing device of the present invention;

[0039] Fig.12 For the present invention Fig.11 Sectional view at AA;

[0040] Fig.13 For the present invention Fig.12 Partial magnification;

[0041] Fig.14 For the present invention Fig.11 Sectional view at the middle BB;

[0042] Fig.15 It is a partial enlarged view of the present invention 14.

[0043] In the figure:

[0044] 1. Traction equipment; 2. Suspension assembly; 21. Connecting beam; 22. Connecting plate; 23. Support wheel; 3. Seeding equipment; 31. Bottom frame; 32. Furrowing plow; 33. Side frame; 34. Storage assembly; 341. Storage hopper; 342. Partition; 343. Cover plate; 344. External interface; 35. Leveling assembly; 351. Rear mounting frame; 352. Connecting arm; 353. Leveling rubber roller; 36. Seeding assembly; 361. Main fixing frame; 362. Auxiliary fixing frame; 363. Card interface; 364. Through hole; 365, rotating wheel; 366, inoculation groove; 367, fixed shaft; 368, fixed sleeve; 369, sliding hole; 3610, handle; 3611, assembly groove; 3612, connecting hole; 3613, push rod; 3614, extension rod; 3615, sliding bolt; 3616, control panel; 3617, control slide groove; 3618, handle; 3619, sealing plate; 3620, movable mouth; 3621, pressing handle; 3622, positioning wheel; 37, auxiliary beam; 38, pedal. DETAILED DESCRIPTION

[0045] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0046] Example, see Figure 1-15, which is the first embodiment of the present invention, provides a wheeled tractor for agricultural sowing, including a traction device 1, a suspension assembly 2, and a sowing device 3. The suspension assembly 2 is connected between the traction device 1 and the sowing device 3. A hydraulic device is provided at the connection between the traction device 1 and the suspension assembly 2. The suspension assembly 2 includes a connecting plate 22 provided at the end of the traction device 1, a connecting beam 21 provided on the side of the connecting plate 22 away from the traction device 1, a supporting wheel 23 provided at the bottom of the connecting beam 21, and the connecting beam 21 is welded to the bottom frame 31. The sowing device 3 includes a bottom frame 31, a furrow opener 32, a seed dropping assembly 36, and a leveling assembly 35 provided at the bottom of the bottom frame 31, side frames 33 provided on both sides of the bottom frame 31, a material storage assembly 34 provided between the two side frames 33, and also includes an auxiliary beam 37 provided inside the bottom frame 31. The seed dropping assembly 36 includes a main fixing frame 361 provided at the bottom of the bottom frame 31, an auxiliary fixing frame 362 provided at the bottom of the auxiliary beam 37, clamping interfaces 363 provided on both sides of the auxiliary fixing frame 362 and the main fixing frame 361, a through hole 364 penetrating through the auxiliary fixing frame 362 and the main fixing frame 361, a rotating wheel 365 provided between the auxiliary fixing frame 362 and the main fixing frame 361, a seed inoculation groove 366 provided on the outer side of the rotating wheel 365, a fixing shaft 367 provided inside the through hole 364, and a fixing sleeve 368 provided at one end of the fixing shaft 367 extending out of the main fixing frame 361.

[0047] Specifically, the traction device 1 uses a wheeled tractor. The connecting beam 21 is integrally welded to the bottom frame 31. The connecting plate 22 is connected to the traction device 1 and the bottom frame 31 by bolts. The bottom frame 31 is in a shape of a Chinese character 'Ri' and is made of 5 - millimeter hollow steel bars. The auxiliary beams 37 are arrayed in the inner space surrounded by the bottom frame 31 and are in a shape of a fence. Rotating shaft sleeves are provided on both sides of the rotating wheel 365, and the rotating shaft sleeves are clamped in the clamping interfaces 363. The clamping interfaces 363 extend downward to the bottoms of the auxiliary fixing frame 362 and the main fixing frame 361. The fixing shaft 367 penetrates through the rotating wheel 365 and the rotating shaft sleeve. The rotating wheel 365 is rotatably connected to the outside of the fixing shaft 367. The fixing sleeve 368 is threadedly connected to the through hole 364. The seed inoculation grooves 366 are distributed in an annular array. The leveling assembly 35 includes rear mounting frames 351 provided at both ends of the bottom of the bottom frame 31, connecting arms 352 provided on the outer sides of the rear mounting frames 351, and a leveling rubber roller 353 provided between the two connecting arms 352.

[0048] By setting up the seeding component 36, when the equipment is started, the rotating wheel 365 rolls on the ground, and the seeds in the storage hopper 341 enter the upper inoculation groove 366. As the rotating wheel 365 rotates, the seeds in the inoculation groove 366 are put into the groove. In this way, the seed placement density is controlled by the evenly spaced inoculation grooves 366, so that a certain distance is maintained between the seeds. At the same time, the seed placement is controlled by the rolling distance of the rotating wheel 365. In this way, when the equipment slows down, the seed placement density is not affected, which can effectively improve the survival rate of the seeds.

[0049] Specifically, a sliding hole 369 is formed through the outside of the fixing sleeve 368, and a handle 3610 is slidably connected to the inside of the sliding hole 369. The length of the handle 3610 is not less than twice the length of the fixing sleeve 368. Rotating the fixing sleeve 368 by the handle 3610 can save effort.

[0050] The seeding assembly 36 also includes an assembly groove 3611 arranged on the side of the rotating wheel 365, a connecting hole 3612 arranged between the assembly groove 3611 and the inoculation groove 366, a pushing rod 3613 arranged inside the inoculation groove 366, an extension rod 3614 arranged inside the assembly groove 3611, a sealing plate 3619 at the opening of the assembly groove 3611, and a positioning wheel 3622 arranged inside the assembly groove 3611.

[0051] Specifically, the push rod 3613 is threadedly connected to the extension rod 3614, and the connection point is located in the assembly groove 3611, the positioning wheel 3622 is fixedly engaged with the fixed shaft 367, the positioning wheel 3622 is divided into a protruding discharge area and a recessed feeding area, and the protruding discharge area is located at the bottom, and the recessed feeding area is located at the top, corresponding to the position of the external interface 344, and the end of the extension rod 3614 away from the push rod 3613 is fixedly connected to the counterweight block, and the counterweight block touches the surface of the positioning wheel 3622. The counterweight block increases the gravity of the push rod 3613, making it more affected by gravity and more stable.

[0052] The state of the pushing rod 3613 in the inoculation groove 366 is controlled by the positioning wheel 3622. When the inoculation groove 366 and the pushing rod 3613 are located below the storage hopper 341, the seeds enter the inoculation groove 366, and then the inoculation groove 366 starts to rotate downward, and the pushing rod 3613 pushes toward the outside of the inoculation groove 366 to push the seeds out and close the inoculation groove 366. This not only prevents the seeds from being stuck in the inoculation groove 366 and unable to be put in, but also prevents soil from entering the inoculation groove 366, so that the equipment operation is always stable.

[0053] The seeding assembly 36 also includes a sliding bolt 3615 arranged on the outside of the extension rod 3614, a control disk 3616 arranged inside the assembly groove 3611, a control slide groove 3617 arranged on the surface of the control disk 3616, a handle 3618 arranged on the side of the control slide groove 3617 close to the sealing plate 3619, a movable opening 3620 arranged on the surface of the sealing plate 3619, and a pressing handle 3621 arranged on the outside of the handle 3618.

[0054] Specifically, the sliding bolt 3615 extends into the control slide groove 3617, the handle 3618 passes through the movable opening 3620 and extends to the outside of the assembly groove 3611, a positioning groove is provided on the surface of the sealing plate 3619, and the positioning groove is composed of three connected circles. The pressing handle 3621 is inserted into the positioning groove. The control slide groove 3617 is provided with three types A, B, and C, and these three types are cyclically and alternately distributed in the circumferential direction. The control slide groove 3617 is composed of an inner sliding section, an outer sliding section, a connecting sliding section, and an avoidance sliding section, and the different arrangements of the four sections form three types of control slide grooves 3617.

[0055] The push rod 3613 is further controlled by controlling the slide groove 3617. Rotating the assembly groove 3611 can put part of the push rod 3613 in a pushing state, and push the push rod 3613 to the opening of the inoculation groove 366, so that part of the inoculation groove 366 is closed, and the distance between two adjacent inoculation grooves 366 is increased, thereby changing the seed placement density, so that the equipment has a wider range of applicability to seeds and land.

[0056] The material storage assembly 34 includes a material storage hopper 341 disposed between two side frames 33 , a partition plate 342 disposed inside the material storage hopper 341 , a cover plate 343 disposed on the top of the material storage hopper 341 , and an external interface 344 disposed on the bottom of the material storage hopper 341 .

[0057] Specifically, the partition 342 divides the internal space of the storage hopper 341 into two parts with a ratio of 3:7. The larger side is filled with seeds and the smaller side is filled with fertilizers. The rotating wheel 365 is attached to the opening below the external interface 344. An auxiliary feeding area is set between the protruding area and the recessed area of ​​the positioning wheel 3622. The distances from the protruding area, the recessed area, and the auxiliary feeding area to the central axis of the assembly groove 3611 are X, Y, and Z, respectively, where X>Z>Y.

[0058] By setting the positioning wheel 3622, the push rod 3613 has three changes when moving. When the extension rod 3614 moves to the auxiliary feeding area, the push rod 3613 retracts a part of it into the inoculation groove 366 to collect part of the fertilizer. After reaching the recessed area, some seeds are added. In this way, the fertilizer and seeds can be mixed in proportion, which improves the survival rate of the seeds. At the same time, there is no need to apply fertilizer again, which reduces the work steps and is conducive to improving efficiency and saving costs.

[0059] Specifically, the storage hopper 341 is divided into two parts, the upper part of which is funnel-shaped, wide at the top and narrow at the bottom, and the lower part is long strip-shaped. A pedal 38 is rotatably connected to the side of the bottom frame 31 away from the connecting beam 21, and a limiting member is provided at the connection between the pedal 38 and the bottom frame 31. The pedal 38 rotates toward the connecting beam 21 to the eleven o'clock position, and rotates in the opposite direction of the connecting beam 21 to the three o'clock position. The pedal 38 is located above the leveling rubber roller 353.

[0060] By setting the pedal 38, the storage hopper 341 and the pedal 38, a storage space is formed above the bottom frame 31 and on the side of the storage hopper 341, in which farm tools, seeds and fertilizers can be placed. When not in use, the pedal 38 is flipped up to shield the items in the side storage space. When in use, the pedal 38 is flipped down and the operator can stand on it to assist the equipment in working. At the same time, the pedal 38 is shielded above the leveling rubber roller 353 to prevent the leveling rubber roller 353 from being rolled into the operator's clothes.

[0061] In summary, the working principle of a wheeled tractor for agricultural sowing of the present invention is as follows:

[0062] During installation: insert the push rod 3613 into the inoculation groove 366 so that one end of it enters the assembly groove 3611, and then thread the extension rod 3614 onto the extension rod 3614 from the inside of the assembly groove 3611. After all the push rods 3613 and the push rods 3613 are installed, install the positioning wheel 3622 into the assembly groove 3611, adjust the extension rod 3614 so that it touches the surface of the positioning wheel 3622, and the sliding bolt 3615 faces the opening of the assembly groove 3611. Then install the control disk 3616 into the assembly groove 3611, insert the sliding bolt 3615 into the control slide groove 3617, and then buckle the sealing plate 3619 onto the opening of the assembly groove 3611 and fix it with bolts. Thread the pressing handle 3621 onto the end of the handle 3618 extending out of the movable opening 3620. In this way, the assembly of all the rotating wheels 365 is completed in the same way.

[0063] Use hydraulic equipment to lift the sowing equipment 3 off the bottom surface, insert the rotating wheel 365 upward from the bottom of the card interface 363, so that the rotating shaft sleeve of the inoculation groove 366 is stuck in it and keeps concentric with the through hole 364. In this way, all the rotating wheels 365 are installed in the same way, and the fixed shaft 367 is inserted into the through hole 364 from the side of the main fixing frame 361 so that it passes through all the rotating wheels 365. Rotate the fixing sleeve 368 to make it enter the through hole 364, and press the fixed shaft 367 to complete the fixation.

[0064] During debugging: rotate the pressing handle 3621 to make it move on the handle 3618, the pressing handle 3621 moves out of the positioning groove, and then slide the handle 3618 in the movable opening 3620, the handle 3618 drives the control disk 3616 to rotate, and the rotation of the control disk 3616 makes the sliding bolt 3615 and the control slide groove 3617 return, so that part of the sliding bolt 3615 moves from the inner sliding section to the outer sliding section through the connecting sliding section, and the extension rod 3614 pushes the pushing rod 3613 to the opening of the inoculation groove 366, and partially blocks the inoculation groove 366. In this way, according to the required delivery density, adjust to the appropriate gear, rotate the pressing handle 3621, make it enter the positioning groove, and fix it again.

[0065] During use: the traction device 1 is started, and the sowing device 3 is towed to the sowing site through the suspension assembly 2. The hydraulic device lowers the sowing device 3, so that the furrowing plow 32, the rotating wheel 365 and the leveling rubber roller 353 fall to the ground. The traction device 1 drives the sowing device 3 to move, and the furrowing plow 32 opens a groove on the land. The rotating wheel 365 rotates with the movement of the equipment. When the extension rod 3614 rotates to the auxiliary feeding area outside the positioning wheel 3622, the extension rod 3614 moves a distance toward the central axis of the assembly groove 3611, and the push rod 3613 also shrinks a part into the inoculation groove 366. At this time, the inoculation groove 366 also moves to the area where the storage hopper 341 stores fertilizers, so that the fertilizer falls into the inoculation groove 366. The extension rod 3614 moves to the recessed area of ​​the positioning wheel 3622 again, and the extension rod 3614 moves a distance toward the central axis of the assembly groove 3611 again, and the push rod 3613 also shrinks a part of the inoculation groove 366 again. At this time, the inoculation groove 366 moves to the area where the seeds are stored in the storage hopper 341, and the seeds fall into the inoculation groove 366. Then the extension rod 3614 moves to the protruding area of ​​the positioning wheel 3622, and the extension rod 3614 is pushed in the opposite direction of the central axis of the assembly groove 3611. The push rod 3613 moves to the opening of the inoculation groove 366, pushes out the seeds and fertilizers, and blocks the inoculation groove 366. The seeds and fertilizers fall into the grooves opened before, and the leveling rubber roller 353 rolls over to bury them.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A wheeled tractor for agricultural sowing, comprising a traction device (1), a suspension assembly (2) and a sowing device (3), wherein the suspension assembly (2) is connected between the traction device (1) and the sowing device (3), the sowing device (3) comprising a bottom frame (31), a furrowing plow (32), a seeding assembly (36) and a leveling assembly (35) arranged at the bottom of the bottom frame (31), side frames (33) arranged at both sides of the bottom frame (31), and a material storage assembly (34) arranged between the two side frames (33), characterized in that: It further includes auxiliary beams (37) arranged inside the bottom frame (31). The seed dropping assembly (36) includes a main fixing frame (361) arranged at the bottom of the bottom frame (31), an auxiliary fixing frame (362) arranged at the bottom of the auxiliary beam (37), clamping interfaces (363) arranged on both sides of the auxiliary fixing frame (362) and the main fixing frame (361), through holes (364) penetrating through the auxiliary fixing frame (362) and the main fixing frame (361), a rotating wheel (365) arranged between the auxiliary fixing frame (362) and the main fixing frame (361), a seeding groove (366) arranged on the outer side of the rotating wheel (365), a fixing shaft (367) arranged inside the through hole (364), and a fixing sleeve (368) arranged at one end of the fixing shaft (367) extending out of the main fixing frame (361); The bottom frame (31) is in a shape of a Chinese character 'Ri'. The auxiliary beams (37) are arrayed in the inner space surrounded by the bottom frame (31). Rotating shaft sleeves are arranged on both sides of the rotating wheel (365), and the rotating shaft sleeves are clamped in the clamping interfaces (363). The fixing shaft (367) penetrates through the rotating wheel (365) and the rotating shaft sleeves, and the rotating wheel (365) is rotatably connected to the outer side of the fixing shaft (367). The fixing sleeve (368) is threadedly connected in the through hole (364), and the seeding grooves (366) are distributed in an annular array; The seed dropping assembly (36) further includes an assembly groove (3611) arranged on the side surface of the rotating wheel (365), a communication hole (3612) arranged between the assembly groove (3611) and the seeding groove (366), a pushing rod (3613) arranged inside the seeding groove (366), an extension rod (3614) arranged inside the assembly groove (3611), a sealing plate (3619) at the opening of the assembly groove (3611), and a positioning wheel (3622) arranged inside the assembly groove (3611); The pushing rod (3613) is threadedly connected to the extension rod (3614), and the connection point is located inside the assembly groove (3611). The positioning wheel (3622) is fixedly clamped to the fixing shaft (367). The positioning wheel (3622) is divided into a protruding discharging area and a concave feeding area. One end of the extension rod (3614) far from the pushing rod (3613) is fixedly connected with a counterweight block, and the counterweight block abuts against the surface of the positioning wheel (3622); The seed dropping assembly (36) further includes a sliding bolt (3615) arranged on the outer side of the extension rod (3614), a control disc (3616) arranged inside the assembly groove (3611), a control sliding groove (3617) arranged on the surface of the control disc (3616), a handle (3618) arranged on the side of the control sliding groove (3617) close to the sealing plate (3619), a movable opening (3620) arranged on the surface of the sealing plate (3619), and a pressing handle (3621) arranged on the outer side of the handle (3618); The sliding bolt (3615) extends into the control slide groove (3617), the handle (3618) passes through the movable opening (3620) and extends to the outside of the assembly groove (3611), a positioning groove is provided on the surface of the sealing plate (3619), the pressing handle (3621) is inserted into the positioning groove, and the control slide groove (3617) is provided with three types A, B, and C.

2. The wheeled tractor for agricultural sowing according to claim 1, characterized in that: The suspension assembly (2) comprises a connecting plate (22) arranged at the rear end of the traction device (1), a connecting beam (21) arranged on a side of the connecting plate (22) away from the traction device (1), and a supporting wheel (23) arranged at the bottom of the connecting beam (21); the connecting beam (21) is welded to a bottom frame (31).

3. The wheeled tractor for agricultural sowing according to claim 2, characterized in that: The leveling assembly (35) comprises a rear mounting frame (351) disposed at both ends of the bottom of the bottom frame (31), a connecting arm (352) disposed outside the rear mounting frame (351), and a leveling rubber roller (353) disposed between the two connecting arms (352).

4. The wheeled tractor for agricultural sowing according to claim 3, characterized in that: A sliding hole (369) is formed through the outside of the fixing sleeve (368), and a handle (3610) is slidably connected to the inside of the sliding hole (369). The length of the handle (3610) is not less than twice the length of the fixing sleeve (368).

5. The wheeled tractor for agricultural sowing according to claim 4, characterized in that: The material storage assembly (34) comprises a material storage hopper (341) disposed between two side frames (33), a partition plate (342) disposed inside the material storage hopper (341), a cover plate (343) disposed on the top of the material storage hopper (341), and an external interface (344) disposed on the bottom of the material storage hopper (341); The partition (342) divides the internal space of the storage hopper (341) into two parts, and the rotating wheel (365) is attached to the opening below the external interface (344).

6. The wheeled tractor for agricultural sowing according to claim 5, characterized in that: An auxiliary feeding area is provided between the convex area and the concave area of ​​the positioning wheel (3622).

7. The wheeled tractor for agricultural sowing according to claim 6, characterized in that: The storage hopper (341) is divided into two parts, the upper part of which is in the shape of a funnel that is wide at the top and narrow at the bottom, and the lower part is in the shape of a long strip.

8. The wheeled tractor for agricultural sowing according to claim 7, characterized in that: A pedal (38) is rotatably connected to a side of the bottom frame (31) away from the connecting beam (21); a limit piece is provided at the connection between the pedal (38) and the bottom frame (31); the pedal (38) rotates in the direction of the connecting beam (21) to an eleven-point state, and rotates in the opposite direction of the connecting beam (21) to a three-point state; the pedal (38) is located above the leveling rubber roller (353).

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