Transmission structure and composite seeder

Abstract

The transmission structure comprises a driving assembly, a rotary tillage mechanism, a first transmission assembly, a fertilizer discharging mechanism, a second transmission assembly and a seed discharging mechanism, the driving assembly is provided with a first driving end and a second driving end, the rotary tillage mechanism is connected to the first driving end, and the second driving end is connected with the input end of the first transmission assembly; the first transmission assembly is provided with a first transmission part and a second transmission part which are rotatably arranged, the fertilizer discharging mechanism is connected with the first transmission part, the second transmission part is connected with the input end of the second transmission assembly, and the seed discharging mechanism is connected to the output end of the second transmission assembly. Therefore, the driving assembly is used as a unique driving source to drive the rotary tillage mechanism, the fertilizer discharging mechanism and the seed discharging mechanism to rotate during rotation, and the situation that the seeder cannot work due to soil adhesion can be effectively avoided; the transmission synchronism is good, multiple functions of rotary tillage, fertilizer discharging, seed discharging and the like can be achieved at the same time at a time, and the farming operation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery and equipment, in particular to a transmission structure and a composite seeder. Background Art

[0002] Crops such as rapeseed, wheat, and sorghum are the basis for ensuring my country's oil and food security. With the continuous increase in the level of planting mechanization, the requirements for this type of sowing machinery are also getting higher and higher. Seeders are usually used for sowing operations.

[0003] Most of the seed drills on the market use a rear-mounted pressing roller as the driving force of the seed drill, and use a chain as the main transmission structure. However, when this type of seed drill is operating in the sticky soil in the south, the rear pressing roller may get stuck or the chain may break due to the stickiness of the sticky soil, making it impossible to operate normally.

[0004] In view of this, it is necessary to propose a transmission structure and a composite seeder to solve or at least alleviate the above-mentioned defects. Summary of the invention

[0005] The main purpose of the present invention is to provide a transmission structure and a composite seeder to solve the problem that the chain transmission structure in the prior art is easily affected by sticky soil and causes jamming or breakage.

[0006] To achieve the above-mentioned purpose, the present invention provides a transmission structure, including a driving assembly, a rotary tillage mechanism, a first transmission assembly, a fertilizer discharge mechanism, a second transmission assembly and a seed discharge mechanism; wherein,

[0007] The driving assembly has a first driving end and a second driving end, and the rotary tillage mechanism is connected to the first driving end;

[0008] The second driving end is connected to the input end of the first transmission assembly, the first transmission assembly has a first transmission part and a second transmission part which are rotatably arranged, and the fertilizer discharge mechanism is connected to the first transmission part;

[0009] The second transmission part is connected to the input end of the second transmission assembly, and the seeding mechanism is connected to the output end of the second transmission assembly;

[0010] When the driving assembly rotates, the rotary tillage mechanism, the fertilizer discharge mechanism and the seed discharge mechanism are driven to rotate.

[0011] Preferably, the first transmission assembly includes a reducer and a transmission shaft, and the first transmission part includes a first connecting shaft, a first corner box, a second connecting shaft and a second corner box, wherein:

[0012] The input end of the reducer is connected to the second driving end through the transmission shaft, the first end of the first corner box is connected to the reducer through the first connecting shaft, the second end of the first corner box is connected to the first end of the second corner box through the second connecting shaft, and the second connecting shaft is extended vertically, and the fertilizer discharge mechanism is connected to the second end of the second corner box.

[0013] Preferably, the second transmission assembly is a transmission box, and the second transmission part includes a third corner box, a third connecting shaft, a fourth corner box, a fourth connecting shaft and a fifth corner box, wherein:

[0014] The first end of the third corner box is transmission-connected to the reducer, the first end of the fourth corner box is transmission-connected to the second end of the third corner box via the third connecting shaft, the first end of the fifth corner box is transmission-connected to the second end of the fourth corner box via the fourth connecting shaft, and the fourth connecting shaft extends obliquely upward, the second end of the fifth corner box is connected to the input end of the transmission box, and the seeding mechanism is connected to the output end of the transmission box.

[0015] Preferably, the rotary tilling mechanism includes a rotary tilling roller and a plurality of blades spaced apart along the extension direction of the rotary tilling roller, the rotary tilling roller is connected to the first driving end, and each two adjacent blades are staggered along the circumference of the rotary tilling roller.

[0016] Preferably, the fertilizer discharge mechanism includes a fertilizer discharge shaft, a fertilizer discharge adjustment hand wheel, and a plurality of fertilizer dischargers arranged at intervals along the axial direction of the fertilizer discharge shaft, one end of the fertilizer discharge shaft is connected to the second end of the second corner box, the fertilizer discharge adjustment hand wheel is connected to the other end of the fertilizer discharge shaft, and the fertilizer discharger is connected to the fertilizer discharge shaft.

[0017] Preferably, the seeding mechanism includes a first seeding shaft, a second seeding shaft, a driving gear, a transmission gear, a driven gear, a seeding adjustment handwheel and a plurality of seeding devices arranged at intervals along the axial direction of the first seeding shaft, one end of the first seeding shaft is connected to the output end of the transmission box, the driving gear is sleeved on the other end of the first seeding shaft, the seeding device is provided with a first shaft through-hole for the first seeding shaft to pass through, and a second shaft through-hole for the second seeding shaft to pass through, so that the seeding device is connected to the first seeding shaft and the second seeding shaft, the driven gear is sleeved on the second seeding shaft, and the transmission gear is meshed with the driving gear and the driven gear, and the seeding adjustment handwheel is connected to one end of the second seeding shaft.

[0018] The present application also provides a composite seeder, comprising a frame, a fertilizer bin, a seed bin, a furrowing and soil-covering mechanism, and two furrowing plows arranged opposite to each other in the transverse direction, wherein the fertilizer bin and the seed bin are respectively fixed on the frame, the furrowing and soil-covering mechanism is connected to the rear end of the frame, the two furrowing plows are respectively connected to the two sides of the frame and are located in front of the furrowing and soil-covering mechanism, and also comprises the transmission structure as described above, wherein the transmission structure is connected to the frame, the fertilizer discharge mechanism of the transmission structure is connected to the fertilizer bin, the seed discharge mechanism of the transmission structure is connected to the seed bin, and the rotary tillage mechanism of the transmission structure is arranged in front of the furrowing plow.

[0019] Preferably, each of the furrowing plows comprises a main plow assembly and an auxiliary plow assembly; wherein,

[0020] The top of the auxiliary plow assembly is provided with a strip hole extending in the transverse direction, the top of the main plow assembly is provided with a connecting hole, and the auxiliary plow assembly is sequentially penetrated through the connecting hole and the strip hole by a fastener so as to be movably arranged in the transverse direction on the inner side of the main plow assembly;

[0021] The auxiliary plow assembly is also provided with a plurality of adjustment hole groups arranged at intervals along the vertical direction, and the main plow assembly is also provided with a plurality of mounting holes arranged at intervals along the vertical direction, and each of the adjustment hole groups is matched with one mounting hole, wherein each of the adjustment hole groups includes a plurality of adjustment holes arranged at intervals along the horizontal direction, and the auxiliary plow assembly is fixedly connected to the main plow assembly by fasteners penetrating the mounting holes and the adjustment holes in sequence.

[0022] Preferably, the trenching and soil covering mechanism comprises a floating assembly, an adjusting assembly, a soil covering pressure wheel and a trenching assembly; wherein,

[0023] The floating assembly includes a connecting part and a floating part, wherein the connecting part is fixedly connected to the frame, the first end of the floating part is rotatably connected to the connecting part, and the soil covering pressure wheel is connected to the second end of the floating part and is rotatably arranged around its own axis;

[0024] The adjusting component is connected to the connecting portion and is movably arranged in the vertical direction. The ditching component is connected to the adjusting component.

[0025] Preferably, the composite seeder further comprises two front plows arranged opposite to each other in the transverse direction, wherein the two front plows are respectively connected to both sides of the frame and are located in front of the rotary tillage mechanism of the transmission structure.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The present invention provides a transmission structure and a composite seeding machine, comprising a driving assembly, a rotary tillage mechanism, a first transmission assembly, a fertilizer discharge mechanism, a second transmission assembly and a seeding mechanism, wherein the driving assembly has a first driving end and a second driving end, the rotary tillage mechanism is connected to the first driving end, the second driving end is connected to the input end of the first transmission assembly, the first transmission assembly has a first transmission part and a second transmission part that can be rotatably arranged, the fertilizer discharge mechanism is connected to the first transmission part, the second transmission part is connected to the input end of the second transmission assembly, and the seeding mechanism is connected to the output end of the second transmission assembly. In this way, the driving assembly is used as the only driving source to drive the rotary tillage mechanism, the fertilizer discharge mechanism and the seeding mechanism to rotate when rotating, and no additional driving source is required. Different from the pressing roller as the driving power of the seeding machine, the situation that the seeding machine cannot operate due to soil adhesion can be effectively avoided; and the transmission has good synchronization, and different functions such as rotary tillage, furrowing, fertilization, sowing, covering soil, and pressing can be realized at one time, greatly improving the efficiency of agricultural operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0029] Figure 1 is a three-dimensional schematic diagram of a transmission structure in one embodiment of the present invention;

[0030] Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A;

[0031] Figure 3 for Figure 1 A partial enlarged schematic diagram of point B in the middle;

[0032] Figure 4 is a three-dimensional schematic diagram of a composite seeder in one embodiment of the present invention;

[0033] Figure 5 is a three-dimensional schematic diagram of a composite seeder in one embodiment of the present invention from another viewing angle;

[0034] Figure 6 is a three-dimensional schematic diagram of a furrowing plow in one embodiment of the present invention;

[0035] Figure 7 It is a three-dimensional schematic diagram of a trenching and soil covering mechanism in one embodiment of the present invention.

[0036] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

[0037] Description of Figure Numbers:

[0038] 10. Drive assembly; 110. First drive end; 120. Second drive end; 20. Rotary tillage mechanism; 210. Rotary tillage roller; 220. Blade; 30. First transmission assembly; 310. Reducer; 320. Transmission shaft; 330. First transmission part; 331. First connecting shaft; 332. First corner box; 333. Second connecting shaft; 334. Second corner box; 340. Second transmission part; 341. Third corner box; 342. Third connecting shaft; 343. Fourth corner box; 344. Fourth connecting shaft; 345. Fifth corner box; 40. Fertilizer discharge mechanism; 410. Fertilizer discharge shaft; 420. Fertilizer discharge adjustment hand wheel; 430. Fertilizer discharger; 50. Second transmission assembly; 510. Transmission box; 60. Seeding mechanism; 610. First seeding shaft; 61 1. First roller; 620. Second seeding shaft; 621. Second roller; 630. Driving gear; 640. Transmission gear; 650. Driven gear; 660. Seeding adjustment hand wheel; 670. Seeder; 70. Frame; 710. Fertilizer bin; 720. Seed bin; 730. Front plow; 80. Furrowing plow; 810. Main plow assembly; 811. Connecting hole; 812. Connecting fixing plate; 820. Secondary plow assembly; 821. Strip hole; 822. Adjusting hole; 823. Strengthening connecting plate; 824. Adjusting connecting plate; 8241. Second fixing hole; 830. Fastener; 90. Furrowing and covering mechanism; 910. Floating assembly; 911. Connecting part; 912. Floating part; 920. Adjusting assembly; 930. Covering wheel; 940. Furrowing assembly. DETAILED DESCRIPTION

[0039] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0042] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0043] Please see attached Figure 1-7 In one embodiment of the present invention, a transmission structure is provided, which includes a driving assembly 10, a rotary tillage mechanism 20, a first transmission assembly 30, a fertilizer discharge mechanism 40, a second transmission assembly 50 and a seed discharge mechanism 60. First of all, it should be noted that the transverse direction in the present application refers to the horizontal width direction perpendicular to the propulsion direction of the whole machine, and the front and rear refer to the forward / backward operation direction of the whole machine. For details, please refer to the markings in the attached drawings; which is different from the prior art that uses a rear-mounted pressing roller as the driving power of the seeding machinery and a chain as the main transmission structure. However, when this type of seeding machinery operates in the sticky soil in the south, there is a situation where the rear pressing roller is stuck or the chain is broken due to the stickiness of the sticky soil and cannot operate normally. The present application solves the above-mentioned defects in the prior art by providing a transmission structure and a composite seeder, as follows:

[0044] The driving assembly 10 has a first driving end 110 and a second driving end 120, and the rotary tillage mechanism 20 is connected to the first driving end 110; the second driving end 120 is connected to the input end of the first transmission assembly 30, and the first transmission assembly 30 has a rotatable first transmission part 330 and a second transmission part 340, and the fertilizer discharge mechanism 40 is connected to the first transmission part 330; the second transmission part 340 is connected to the input end of the second transmission assembly 50, and the seed discharge mechanism 60 is connected to the output end of the second transmission assembly 50; wherein, when the driving assembly 10 rotates, the rotary tillage mechanism 20, the fertilizer discharge mechanism 40 and the seed discharge mechanism 60 are driven to rotate by transmission.

[0045] Specifically, the transmission structure in the present application includes a drive component 10, a rotary tillage mechanism 20, a first transmission component 30, a fertilizer discharge mechanism 40, a second transmission component 50 and a seed discharge mechanism 60. The drive component 10 serves as a driving power source for the entire structure, and its input end is directly connected to an external tractor PTO output shaft (not shown in the figure). The power output by the external tractor PTO output shaft is used as the driving power of the drive component 10. In the present application as a preferred embodiment, the drive component 10 can adopt a gearbox, which can adjust the driving speed according to the traction speed of the tractor and has good adaptability; the rotary tillage mechanism 20 is a component for tilling the entire soil in the entire compound seeder, and the first transmission component 30 is used to drive and drive the fertilizer discharge mechanism 40 to rotate, so that fertilizer can be discharged through the fertilizer discharge mechanism 40 at the same time during rotary tillage, and the second transmission component 50 is used to drive and drive the seed discharge mechanism 60 to rotate, so that seeds can be discharged through the seed discharge mechanism 60 while rotary tillage and fertilizer discharge.

[0046] The driving assembly 10 has a first driving end 110 and a second driving end 120, the first driving end 110 is used to drive the rotary tillage mechanism 20 to rotate, the second driving end 120 is used to drive the first transmission assembly 30 to rotate, so that the first transmission assembly 30 serves as a second sub-driving source, and the second transmission assembly 50 has a rotatable first transmission part 330 and a second transmission part 340, the first transmission part 330 is used to drive the fertilizer discharge mechanism 40 to rotate, and the second transmission part 340 is used to drive the second transmission assembly 50 to rotate, so that the second transmission assembly 50 serves as a third sub-driving source, from The second transmission component 50 is used to drive the seeding mechanism 60 to rotate; in this way, when the driving component 10 rotates, the rotary tillage mechanism 20 can be rotated through the first driving end 110, and the first transmission component 30 can be driven to rotate through the second driving end 120, and the first transmission part 330 of the first transmission component 30 synchronously drives the fertilizer discharge mechanism 40 to rotate, and then the second transmission part 340 of the first transmission component 30 drives the second transmission component 50 to rotate, thereby synchronously driving the seeding mechanism 60 to rotate, thereby realizing the one-time simultaneous operation of rotary tillage, fertilizer discharge, and seeding, thereby greatly improving the efficiency of agricultural operations.

[0047] As a preferred embodiment of the present invention, the first transmission assembly 30 includes a reducer 310 and a transmission shaft 320, and the first transmission part 330 includes a first connecting shaft 331, a first corner box 332, a second connecting shaft 333 and a second corner box 334, wherein:

[0048] The input end of the reducer 310 is connected to the second driving end 120 via the transmission shaft 320, the first end of the first corner box 332 is connected to the reducer 310 via the first connecting shaft 331, the second end of the first corner box 332 is connected to the first end of the second corner box 334 via the second connecting shaft 333, and the second connecting shaft 333 is extended vertically, and the fertilizer discharge mechanism 40 is connected to the second end of the second corner box 334.

[0049] It should be noted that the transmission shaft 320 facilitates the transmission connection between the reducer 310 and the second drive end 120 of the gearbox. The internal structure of the reducer 310 adopts the form of a worm gear, which is well known to those skilled in the art and will not be described in detail here. In this way, the turbine part is connected through the transmission shaft 320, and the two ends of the worm gear are respectively connected to the first transmission part 330 and the second transmission part 340; the first transmission part 330 uses a plurality of angle boxes in combination with the transmission method to fully save the installation space of the fertilizer discharge mechanism 40, and the interior of the angle box uses a plurality of bevel gears to transmit the angle, which is also well known to those skilled in the art. The first connecting shaft 331 is used for the transmission connection between the first corner box 332 and the reducer 310, and the second connecting shaft 333 is extended vertically so that the fertilizer discharge mechanism 40 can be arranged above the gearbox, so that there is enough space to install the fertilizer discharge mechanism 40, and then the transmission shaft 320 is changed to extend horizontally through the second corner box 334, so that the fertilizer discharge mechanism 40 extends horizontally and is arranged above the gearbox, which is compact and convenient to install. At the same time, the transmission method using the corner box and the connecting shaft has high reliability, which can greatly improve the service life of the transmission.

[0050] As a preferred embodiment of the present invention, the second transmission assembly 50 is a transmission box 510, and the second transmission part 340 includes a third corner box 341, a third connecting shaft 342, a fourth corner box 343, a fourth connecting shaft 344 and a fifth corner box 345, wherein:

[0051] The first end of the third corner box 341 is transmission connected to the reducer 310, the first end of the fourth corner box 343 is transmission connected to the second end of the third corner box 341 through the third connecting shaft 342, the first end of the fifth corner box 345 is transmission connected to the second end of the fourth corner box 343 through the fourth connecting shaft 344, and the fourth connecting shaft 344 extends obliquely upward, the second end of the fifth corner box 345 is connected to the input end of the transmission box 510, and the seeding mechanism 60 is connected to the output end of the transmission box 510.

[0052] It should be noted that the transmission box 510 is used to transmit and connect the fifth corner box 345 and the seeding mechanism 60, and two gear transmission methods can be used internally. The two gears are respectively connected to the input shaft and the output shaft of the transmission box 510, so as to realize torque transmission; of course, in some other embodiments, the transmission box 510 can adopt a speed regulator, which can be adjusted according to the change of load to avoid damage due to overspeeding due to heavy load. The speed is adjusted internally by switching different gear sets and combining the principle of adjusting the transmission ratio. This is a content well known to those skilled in the art, so it will not be described in detail here; the second transmission part 340 also adopts the transmission method of the corner box and the connecting shaft cooperating for transmission, which is similar to the principle of the first transmission part 330, through the third corner Box 341 extends the transmission shaft 320 from the reducer 310, so the first end of the third corner box 341 is connected to the reducer 310 in transmission, and then adapts to the final installation position of the seeding mechanism 60 under the cooperation of the fourth corner box 343 and the fifth corner box 345, wherein the fourth connecting shaft 344 is extended obliquely upward so that the seeding mechanism 60 and the fertilizer discharge mechanism 40 are arranged at the same height but located on the rear side of the fertilizer discharge mechanism 40, and the fifth corner box 345 ensures that they are extended in the horizontal direction. The final structural arrangement formed in this way makes it easy for the fertilizer discharge mechanism 40 and the seeding mechanism 60 to be connected to the fertilizer bin 710 and the seed bin 720.

[0053] As a preferred embodiment of the present invention, the rotary tilling mechanism 20 includes a rotary tilling roller 210 and a plurality of blades 220 arranged at intervals along the extension direction of the rotary tilling roller 210, the rotary tilling roller 210 is connected to the first driving end 110, and each adjacent two blades 220 are staggered along the circumference of the rotary tilling roller 210.

[0054] It is worth noting that the rotary tillage roller 210 is used to drive the blade 220 installed thereon to rotate by rotating, thereby realizing rotary tillage of the soil. It can be understood that since the transmission is installed in the middle of the whole machine, the first driving end 110 is arranged on both sides of the bottom of the transmission, so that both sides of the transmission are connected to the rotary tillage roller 210. For details, please refer to the attached Figure 1 The staggered arrangement of each two adjacent blades 220 along the circumferential direction of the rotary tiller roller 210 can reduce the torque in the same axial direction, thereby improving the working efficiency.

[0055] As a preferred embodiment of the present invention, the fertilizer discharge mechanism 40 includes a fertilizer discharge shaft 410, a fertilizer discharge adjustment hand wheel 420, and a plurality of fertilizer dischargers 430 arranged at intervals along the axial direction of the fertilizer discharge shaft 410, one end of the fertilizer discharge shaft 410 is connected to the second end of the second corner box 334, the fertilizer discharge adjustment hand wheel 420 is connected to the other end of the fertilizer discharge shaft 410, and the fertilizer discharger 430 is connected to the fertilizer discharge shaft 410.

[0056] It is worth noting that the fertilizer discharge shaft 410 serves as the rotating shaft of the entire fertilizer discharge mechanism 40, for the installation of the fertilizer discharger 430, and one end of the fertilizer discharge shaft 410 is connected to the second end of the second corner box 334, so that the fertilizer discharge shaft 410 is driven to rotate when the second corner box 334 rotates, so that the fertilizer discharger 430 connected to the fertilizer discharge shaft 410 also rotates synchronously. It is worth mentioning that the rotation of the fertilizer discharger 430 here refers to the rotation of the roller structure inside the fertilizer discharger 430, that is, the top of the fertilizer discharger 430 and the fertilizer bin 710 is connected. When the waste falls into the fertilizer discharger 430, the internal structure rotates with the fertilizer discharge shaft 410. When the waste rotates to the fertilizer discharge port at the bottom, the fertilizer is discharged. This is a relatively well-known structure and will not be described in detail here. At the same time, a fertilizer discharge pipe (not shown) can be provided at the fertilizer discharge port to guide the fertilizer discharge. Furthermore, a fertilizer discharge adjustment hand wheel 420 is added to be connected to the fertilizer discharge shaft 410, so that in some special circumstances, the technician can perform manual adjustment through the fertilizer discharge adjustment hand wheel 420.

[0057] Furthermore, the seeding mechanism 60 includes a first seeding shaft 610, a second seeding shaft 620, a driving gear 630, a transmission gear 640, a driven gear 650, a seeding adjustment hand wheel 660, and a plurality of seeding devices 670 arranged at intervals along the axial direction of the first seeding shaft 610. One end of the first seeding shaft 610 is connected to the output end of the transmission box 510, the driving gear 630 is sleeved on the other end of the first seeding shaft 610, and the seeding device 670 is provided with a A first shaft through hole for the first seed-rowing shaft 610 to pass through and a second shaft through hole for the second seed-rowing shaft 620 to pass through are provided so that the seed-rowing device 670 is connected to the first seed-rowing shaft 610 and the second seed-rowing shaft 620, the driven gear 650 is sleeved on the second seed-rowing shaft 620, and the transmission gear 640 is meshed with the driving gear 630 and the driven gear 650, and the seed-rowing adjustment hand wheel 660 is connected to one end of the second seed-rowing shaft 620.

[0058] It should be noted that the first seed-seeding shaft 610 serves as the rotating shaft of the entire seed-seeding mechanism 60 for installation of the seed-seeding device 670, and one end of the first seed-seeding shaft 610 is connected to the output end of the transmission box 510 so that the first seed-seeding shaft 610 is driven to rotate when the transmission box 510 rotates, so that the seed-seeding device 670 (the internal roller structure, i.e., the first roller 611) connected to the first seed-seeding shaft 610 also rotates synchronously. It is worth mentioning that in a preferred embodiment, in addition to the internal roller structure connected to the first seed-seeding shaft 610, the seed-seeding device 670 may also be provided with an internal roller structure of different sizes (i.e., the second roller 621) for realizing the sowing operation of different crops, and therefore the second seed-seeding shaft 620 is added so that the second seed-seeding shaft 620 also passes through the seed-seeding device 670, so that the seed-seeding device 670 is connected On the first seed-rowing shaft 610 and the second seed-rowing shaft 620, since the second seed-rowing shaft 620 lacks a power source that can drive the rotation, the driving gear 630, the transmission gear 640 and the driven gear 650 cooperate to produce a transmission effect, so that the driving gear 630 mounted on the first seed-rowing shaft 610 drives the driven gear 650 to rotate through the transmission gear 640 when rotating, so that the transmission gear 640 is mounted on the second seed-rowing shaft 620 to drive the second seed-rowing shaft 620 to rotate, and further realizes the rotation of the internal roller structure (second roller 621) on the second seed-rowing shaft 620 in the seeding device 670; further, the seed-rowing adjustment hand wheel 660 is similar to the fertilizer adjustment hand wheel 420, and is used in some special cases, and the technician can manually adjust it through the seed-rowing adjustment hand wheel 660.

[0059] The present application also provides a composite seeder, comprising a frame 70, a fertilizer bin 710, a seed bin 720, a furrowing and soil-covering mechanism 90, and two furrowing plows 80 arranged opposite to each other in the transverse direction, wherein the fertilizer bin 710 and the seed bin 720 are respectively fixed on the frame 70, the furrowing and soil-covering mechanism 90 is connected to the rear end of the frame 70, the two furrowing plows 80 are respectively connected to the two sides of the frame 70 and are located in front of the furrowing and soil-covering mechanism 90, and also comprises the transmission structure as described above, wherein the transmission structure is connected to the frame 70, the fertilizer discharge mechanism 40 of the transmission structure is connected to the fertilizer bin 710, the seed discharge mechanism 60 of the transmission structure is connected to the seed bin 720, and the rotary tillage mechanism 20 of the transmission structure is arranged in front of the furrowing plow 80.

[0060] It should be understood that the frame 70 serves as the main skeleton of the entire composite seeder for installation of other components, the fertilizer bin 710 and the seed bin 720 are used to provide fertilizer and seeds respectively, the furrowing and covering mechanism 90 is used to furrow and cover the soil before sowing and fertilizing, and the furrowing plow 80 is used to dig ditches for irrigation and drainage; wherein, when the transmission structure is connected to the frame 70, the rotary tillage mechanism 20 of the transmission mechanism maintains rotatability, and the rotary tillage roller 210, except for one end connected to the first drive end 110, the other end needs to be rotatably mounted on the frame 70. ; The fertilizer discharger 430 in the fertilizer discharge mechanism 40 of the transmission mechanism is connected to the fertilizer bin 710 at the top for receiving waste; the seed discharger 670 in the seed discharge mechanism 60 of the transmission mechanism is connected to the seed bin 720 at the top for receiving seeds; in this way, the entire composite seeder can be combined with the furrowing plow 80 and the furrowing and covering mechanism 90 to realize different functions such as rotary tillage, furrowing, fertilization, sowing, covering, and pressing at one time when the transmission mechanism is working, and the operation efficiency is high. At the same time, a spray system (not shown in the figure) can be installed at the rear of the entire composite seeder to realize different functions such as dust removal and spraying.

[0061] Furthermore, each of the furrowing plows 80 includes a main plow assembly 810 and an auxiliary plow assembly 820; wherein,

[0062] A strip hole 821 extending in the transverse direction is provided on the top of the auxiliary plow assembly 820, and a connecting hole 811 is provided on the top of the main plow assembly 810. The auxiliary plow assembly 820 is movably provided on the inner side of the main plow assembly 810 in the transverse direction by a fastener 830 which passes through the connecting hole 811 and the strip hole 821 in sequence.

[0063] The auxiliary plow assembly 820 is also provided with a plurality of adjustment holes 822 arranged at intervals along the vertical direction, and the main plow assembly 810 is also provided with a plurality of mounting holes arranged at intervals along the vertical direction, and each of the adjustment holes 822 is matched with one mounting hole, wherein each of the adjustment holes 822 includes a plurality of adjustment holes 822 arranged at intervals along the horizontal direction, and the auxiliary plow assembly 820 is fixedly connected to the main plow assembly 810 by means of fasteners 830 that penetrate the mounting holes and the adjustment holes 822 in sequence.

[0064] It should be noted that the entire furrowing plow 80 is formed by the main plow assembly 810 and the auxiliary plow assembly 820, and the auxiliary plow assembly 820 can be moved and adjusted relative to the main plow assembly 810, so that the furrow width can be selectively adjusted, and the adaptability is good; by providing a strip hole 821 on the top of the auxiliary plow assembly 820 and a connecting hole 811 on the main plow assembly 810, when the fastener 830 passes through the connecting hole 811 to the strip hole 821, it can be moved along the transverse direction (strip hole 821). The auxiliary plow assembly 820 is moved along the strip hole 821) and when the required width of the furrowing plow 80 is reached, the top is further fixed by the fastener 830. To ensure convenient adjustment, the present application is used as a preferred embodiment in which the fastener 830 can be in the form of a fastening bolt and a fastening nut. When the auxiliary plow assembly 820 is moved along the strip hole 821 and adjusted to the required position, the fastening nut can be tightened on the fastening bolt to fasten the top of the main plow assembly 810 and the auxiliary plow assembly 820.

[0065] Among them, after the top is fastened, in order to ensure the stability of the overall structure, it is necessary to connect and fix other parts. By setting a plurality of adjustment holes 822 groups on the auxiliary plow assembly 820 and a plurality of mounting holes on the main plow assembly 810, the plurality of adjustment holes 822 groups are arranged at intervals along the vertical direction to ensure that they can be fixed by fasteners 830 at certain intervals along the vertical direction to ensure the stability of the overall structure; further, each of the adjustment holes 822 groups includes a plurality of adjustment holes 822 arranged at intervals along the horizontal direction, so that During adjustment, the required furrowing plow 80 width can be quickly positioned according to the preset spacing of the adjustment holes 822, that is, it is optimized into a "gear adjustment" mode to speed up the adjustment speed, thereby improving the working efficiency. Therefore, while maintaining the optimized adjustment, one of the mounting holes must be matched in each group of adjustment holes 822 (the matching setting here means that the vertical spacing of the adjustment hole 822 group is consistent with the vertical spacing of the mounting holes, thereby ensuring that each adjustment hole 822 group and a mounting hole are arranged in the same row along the horizontal direction, so as to facilitate the fastener 830 to penetrate and fix).

[0066] Preferably, the auxiliary plow assembly 820 further includes a reinforcing connecting plate 823 and an adjusting connecting plate 824, and the main plow assembly 810 further includes a connecting fixing plate 812, the reinforcing connecting plate 823 is convexly arranged on the inner side of the auxiliary plow assembly 820 to improve the cross-sectional force strength, the connecting fixing plate 812 is extended in the transverse direction and connected to the inner side of the main plow assembly 810, the adjusting connecting plate 824 is extended in the transverse direction and connected to the reinforcing connecting plate 823, and the connecting fixing plate 812 is provided with a first fixing hole, and the adjusting connecting plate 824 is provided with a plurality of second fixing holes arranged in the transverse direction at intervals. Two fixing holes 8241, the adjusting connecting plate 824 passes through the first fixing hole and the second fixing hole 8241 through the fastener 830 to be fixedly connected with the connecting fixing plate 812; in this way, the connection between the main plow assembly 810 and the auxiliary plow assembly 820 is further reinforced through the connecting fixing plate 812 and the adjusting connecting plate 824 to ensure the stability of the entire structure. Similar to the principle of the adjusting hole 822 group, the second fixing hole 8241 is set in the form of multiple laterally spaced arrangements to correspond to the adjustment position of the adjusting hole 822 and cooperate with the first fixing hole for adjustment and fixation.

[0067] Furthermore, the trenching and soil covering mechanism 90 includes a floating assembly 910, an adjustment assembly 920, a soil covering pressure wheel 930 and a trenching assembly 940; wherein,

[0068] The floating assembly 910 includes a connecting portion 911 and a floating portion 912, wherein the connecting portion 911 is fixedly connected to the frame 70, a first end of the floating portion 912 is rotatably connected to the connecting portion 911, and the soil covering pressure wheel 930 is connected to the second end of the floating portion 912 and is rotatably arranged around its own axis;

[0069] The adjusting assembly 920 is connected to the connecting portion 911 , and the adjusting assembly 920 is vertically movably arranged, and the trenching assembly 940 is connected to the adjusting assembly 920 .

[0070] It should be noted that the floating component 910 is used for the soil covering pressure wheel 930 to connect and float, so that when the soil covering pressure wheel 930 encounters highly uneven soil, it can adaptively float and adjust according to the soil height, thereby ensuring the soil covering effect; and the adjusting component 920 is used for the ditching component 940 to connect and float, so that when ditching encounters highly uneven soil, it can adaptively adjust the height vertically to ensure the ditching effect, so that the effect of adaptive floating adjustment can be achieved during soil covering and ditching.

[0071] The floating assembly 910 includes a connecting portion 911 and a floating portion 912, wherein the connecting portion 911 is used to be fixed on the frame 70, so that the floating assembly 910 and the adjusting assembly 920 are independent of each other when connected, so that they will not affect each other when floating with each other, wherein the floating portion 912 can facilitate the floating adjustment of the soil covering pressure wheel 930, wherein the first end thereof is rotatably connected to the connecting portion 911, and the second end is used for connecting the soil covering pressure wheel 930, so that the soil covering pressure wheel 930 connected to the second end of the floating portion 912 can rotate around the first end of the floating portion 912. One end swings to adapt to floating adjustment according to different soil heights; and the adjusting component 920 is also connected to the connecting part 911, because the connecting part 911 is fixed on the frame 70, so the floating part 912 and the adjusting component 920 respectively connected to the connecting part 911 will operate independently without affecting each other, and the adjusting component 920 is movably arranged vertically so that the trenching component 940 can adapt to move up and then trench when it contacts soil of different heights, and it is not synchronized with the floating adjustment of the floating part 912 to ensure a better trenching effect.

[0072] Furthermore, the composite seeder also includes two front plows 730 that are arranged opposite to each other in the transverse direction. The two front plows 730 are respectively connected to the two sides of the frame 70 and are located in front of the rotary tillage mechanism 20 of the transmission structure.

[0073] It can be understood that the front plow 730 is used to cut the vegetation on the field surface and improve soil coverage, so it is arranged at the frontmost side of the entire composite seeder.

[0074] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A transmission structure, characterized in that: It includes a driving assembly, a rotary tillage mechanism, a first transmission assembly, a fertilizer discharge mechanism, a second transmission assembly and a seed discharge mechanism; wherein, The driving assembly has a first driving end and a second driving end, and the rotary tillage mechanism is connected to the first driving end; The second driving end is connected to the input end of the first transmission assembly, the first transmission assembly has a first transmission part and a second transmission part which are rotatably arranged, and the fertilizer discharge mechanism is connected to the first transmission part; The second transmission part is connected to the input end of the second transmission assembly, and the seeding mechanism is connected to the output end of the second transmission assembly; When the driving assembly rotates, the rotary tillage mechanism, the fertilizer discharge mechanism and the seed discharge mechanism are driven to rotate.

2. The transmission structure according to claim 1, characterized in that: The first transmission assembly includes a reducer and a transmission shaft, and the first transmission part includes a first connecting shaft, a first corner box, a second connecting shaft and a second corner box, wherein: The input end of the reducer is connected to the second driving end through the transmission shaft, the first end of the first corner box is connected to the reducer through the first connecting shaft, the second end of the first corner box is connected to the first end of the second corner box through the second connecting shaft, and the second connecting shaft is extended vertically, and the fertilizer discharge mechanism is connected to the second end of the second corner box.

3. The transmission structure according to claim 2, characterized in that: The second transmission assembly is a transmission box, and the second transmission part includes a third corner box, a third connecting shaft, a fourth corner box, a fourth connecting shaft and a fifth corner box, wherein: The first end of the third corner box is transmission-connected to the reducer, the first end of the fourth corner box is transmission-connected to the second end of the third corner box via the third connecting shaft, the first end of the fifth corner box is transmission-connected to the second end of the fourth corner box via the fourth connecting shaft, and the fourth connecting shaft extends obliquely upward, the second end of the fifth corner box is connected to the input end of the transmission box, and the seeding mechanism is connected to the output end of the transmission box.

4. The transmission structure according to claim 1, characterized in that: The rotary tilling mechanism includes a rotary tilling roller and a plurality of blades spaced apart along the extension direction of the rotary tilling roller. The rotary tilling roller is rotatably connected to the first driving end, and each two adjacent blades are staggered along the circumference of the rotary tilling roller.

5. The transmission structure according to claim 2, characterized in that: The fertilizer discharge mechanism includes a fertilizer discharge shaft, a fertilizer discharge adjustment hand wheel, and a plurality of fertilizer dischargers arranged at intervals along the axial direction of the fertilizer discharge shaft. One end of the fertilizer discharge shaft is connected to the second end of the second corner box, the fertilizer discharge adjustment hand wheel is connected to the other end of the fertilizer discharge shaft, and the fertilizer discharger is connected to the fertilizer discharge shaft.

6. The transmission structure according to claim 3, characterized in that: The seeding mechanism includes a first seeding shaft, a second seeding shaft, a driving gear, a transmission gear, a driven gear, a seeding adjustment handwheel and a plurality of seeding devices arranged at intervals along the axial direction of the first seeding shaft. One end of the first seeding shaft is connected to the output end of the transmission box, and the driving gear is sleeved on the other end of the first seeding shaft. The seeding device is provided with a first shaft through-hole for the first seeding shaft to pass through and a second shaft through-hole for the second seeding shaft to pass through, so that the seeding device is connected to the first seeding shaft and the second seeding shaft. The driven gear is sleeved on the second seeding shaft, and the transmission gear is meshed with the driving gear and the driven gear. The seeding adjustment handwheel is connected to one end of the second seeding shaft.

7. A composite seeder, comprising a frame, a fertilizer bin, a seed bin, a furrowing and soil-covering mechanism, and two furrowing plows arranged opposite to each other in the transverse direction, wherein the fertilizer bin and the seed bin are respectively fixed to the frame, the furrowing and soil-covering mechanism is connected to the rear end of the frame, and the two furrowing plows are respectively connected to both sides of the frame and are located in front of the furrowing and soil-covering mechanism, characterized in that: It also includes the transmission structure as described in any one of claims 1-6, wherein the transmission structure is connected to the frame, the fertilizer discharge mechanism of the transmission structure is connected to the fertilizer bin, the seed discharge mechanism of the transmission structure is connected to the seed bin, and the rotary tillage mechanism of the transmission structure is arranged on the front side of the furrowing plow.

8. The composite seeder according to claim 7, characterized in that: Each of the furrowing plows comprises a main plow assembly and an auxiliary plow assembly; wherein, The top of the auxiliary plow assembly is provided with a strip hole extending in the transverse direction, the top of the main plow assembly is provided with a connecting hole, and the auxiliary plow assembly is sequentially penetrated through the connecting hole and the strip hole by a fastener so as to be movably arranged in the transverse direction on the inner side of the main plow assembly; The auxiliary plow assembly is also provided with a plurality of adjustment hole groups arranged at intervals along the vertical direction, and the main plow assembly is also provided with a plurality of mounting holes arranged at intervals along the vertical direction, and each of the adjustment hole groups is matched with one mounting hole, wherein each of the adjustment hole groups includes a plurality of adjustment holes arranged at intervals along the horizontal direction, and the auxiliary plow assembly is fixedly connected to the main plow assembly by fasteners penetrating the mounting holes and the adjustment holes in sequence.

9. The composite seeder according to claim 7, characterized in that: The trenching and soil covering mechanism comprises a floating component, an adjusting component, a soil covering pressure wheel and a trenching component; wherein, The floating assembly includes a connecting part and a floating part, wherein the connecting part is fixedly connected to the frame, the first end of the floating part is rotatably connected to the connecting part, and the soil covering pressure wheel is connected to the second end of the floating part and is rotatably arranged around its own axis; The adjusting component is connected to the connecting portion and is movably arranged in the vertical direction. The ditching component is connected to the adjusting component.

10. The composite seeder according to claim 7, characterized in that: The composite seeder also includes two front plows arranged opposite to each other in the transverse direction. The two front plows are respectively connected to the two sides of the frame and are located in front of the rotary tillage mechanism of the transmission structure.

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