Intercropping sowing and seed collection components

Abstract

An intercropping sowing, seed collection and seeding assembly relates to the technical field of intercropping sowing, and is used to meet the intercropping sowing requirements of different types of crop combinations. It includes a tray, a first type box, a second type box, a variable seed box, a seed collection unit and a transmission unit. The first type box is provided in two on the left and right and is located at the rear end of the tray. The second type box is provided in two on the left and right and is located at the front end of the tray. The variable seed box is located between the two first type boxes. The bottoms of the first type box, the second type box and the variable seed box all have seed collection boxes. The seed collection unit includes an outlet box, an outlet pipe and a seed collection wheel. The outlet box is fixed to the bottom of the seed collection box. The seed collection wheel is rotatably installed in the seed collection box. The circular outer wall of the seed collection wheel has seed collection holes arranged at equal intervals. The outlet pipe below the second type box is located between the outlet pipes below the first type box and the variable seed box. The present invention can perform intercropping sowing, seed collection and seeding for crops of different sowing widths.

Description

Technical Field

[0001] The invention relates to the technical field of intercropping sowing, in particular to an intercropping sowing seed collection and arrangement component. Background Art

[0002] Intercropping is the practice of planting two or more crops alternately in rows or strips on the same field during the same growing season. Intercropping improves land utilization, and the resulting crop complexes can increase sunlight interception and absorption, reducing light energy waste. Furthermore, intercropping can also complement each other, for example, tall crops in wide-narrow row or strip intercropping offer certain edge-row advantages, and intercropping legumes and grasses can help replenish soil nitrogen depletion.

[0003] Common intercropping techniques include corn and soybeans, corn and peanuts, and melon and cotton. Small-scale intercropping typically involves sowing each crop separately, and existing intercropping machinery is typically only suitable for sowing a single crop combination. Furthermore, it cannot adjust the sowing and plant spacing based on the intercropped crop combination. Summary of the Invention

[0004] The object of the present invention is to provide an intercropping sowing, seeding and seeding component, which is used to meet the intercropping sowing, seeding and seeding requirements for different types of crop combinations.

[0005] The technical solution adopted by the present invention to solve its technical problems is: an intercropping sowing, seed collection and seeding assembly, including a tray, a first seed box, a second seed box, a variable seed box, a seed collection unit and a transmission unit, the first seed box is two and is arranged on the left and right and is located at the rear end of the tray, the second seed box is two and is arranged on the left and right and is located at the front end of the tray, the variable seed box is located between the two first seed boxes, the first seed box is used to place seeds of the first crop planted in intercropping, the second seed box is used to place seeds of the second crop planted in intercropping, and the variable seed box is used to place the same seeds as those in the first box or the second box; the bottoms of the first seed box, the second seed box and the variable seed box are all provided with a seed collection box, the seed collection unit includes an outlet box, an outlet pipe and a seed collection wheel, the outlet box is fixed to the bottom of the seed collection box, and the seed collection The wheel is rotatably installed in the seed box and contacts the left and right side walls of the seed box, and the circular outer wall of the seed wheel is provided with seed holes arranged at equal intervals, and a block is provided between the seed wheel and the front and rear inner walls of the seed box. After the seeds in various boxes enter the seed box, they are gathered between the two blocks and then enter the seed hole, and the upper end of the lead-out tube is connected to the bottom of the lead-out box, and the lower end of the lead-out tube faces the ground; the lead-out tube below the second seed box is located between the lead-out tube below the first seed box and the variable seed box, the seed-taking wheels of the seed-taking unit at the bottom of the first seed box and the variable seed box are coaxially arranged through the first rotating shaft, and the seed-taking wheels of the seed-taking unit at the bottom of the second seed box are coaxially arranged through the second rotating shaft, and the transmission unit is arranged between the first rotating shaft and the second rotating shaft to transmit the rotational motion of the first rotating shaft to the second rotating shaft.

[0006] Furthermore, the transmission unit includes a driving pulley, a driven pulley and a transmission belt, the driving pulley is fixed on the first rotating shaft, the driven pulley is fixed on the second rotating shaft, and the transmission belt is located between the driving pulley and the driven pulley.

[0007] Furthermore, it also includes a driving unit, which includes a driving sprocket coaxially arranged with the traveling wheel of the seeding machine, a driven sprocket coaxially arranged with the first rotating shaft, and a transmission chain arranged between the driving sprocket and the driven sprocket.

[0008] Furthermore, the bottom of the seed removal box is provided with a seed removal box flange, the top of the lead-out box is provided with an lead-out box flange, and the seed removal box flange is in contact with the lead-out box flange and is fixedly connected together by bolts.

[0009] Furthermore, it also includes a line spacing adjustment unit, which includes a first lead screw, a second lead screw, a first nut and a second nut. The first lead screw and the second lead screw are both connected to the tray for relative rotation. The first nut is fixedly connected to the lead-out pipe below the first box. The first nut has two and is respectively located at the two ends of the first lead screw. The second nut is fixedly connected to the lead-out pipe below the second box. The second nut has two and is respectively located at the two ends of the second lead screw. The end of one of the first lead screw and the second lead screw has a handle.

[0010] Furthermore, both ends of the first screw and the second screw have supports, the supports are relatively fixedly connected to the tray, and the first screw and the second screw are rotatably connected to the supports; a locking mechanism is provided between the handle and the supports at the corresponding ends of the screw.

[0011] Furthermore, the locking mechanism includes a locking spring and a sleeve, the sleeve is fixed at one end of the handle, the support is provided with a sleeve hole, the sleeve extends into the sleeve hole from one end of the sleeve hole and is axially slidably connected with the corresponding end of the screw and relatively fixed along the circumferential direction, the other end of the sleeve hole is provided with a spring seat, the locking spring is arranged between the spring seat and the sleeve; the other end of the handle is provided with a locking strip, the end face of the support is provided with a plurality of locking grooves evenly arranged along the circumferential direction, and under the action of the locking spring, the locking strip extends into the locking groove to realize the relative fixation of the handle and the support.

[0012] Furthermore, the transmission unit includes a driving pulley, a driven pulley, a transmission belt, a tensioning mechanism and an adjusting mechanism, the driving pulley is fixed on the first rotating shaft, the driven pulley is fixed on the second rotating shaft, the outer surface of the driven pulley includes a first outer cylindrical surface, a conical surface and a second outer cylindrical surface arranged in sequence, the diameter of the first outer cylindrical surface is smaller than the diameter of the second outer cylindrical surface, the adjusting mechanism is relatively fixedly connected to the tray for driving the driven pulley to move along its own axis so that the first outer cylindrical surface or the second outer cylindrical surface contacts the transmission belt; the tensioning mechanism includes a tensioning cylinder and a tensioning wheel, the tensioning cylinder is vertically arranged and relatively fixedly connected to the tray, the piston rod of the tensioning cylinder has a wheel frame, the tensioning wheel is rotatably mounted on the wheel frame, and the transmission belt is arranged between the driving pulley, the driven pulley and the tensioning wheel; the tensioning mechanism is used to keep the transmission belt in a tensioned state.

[0013] Furthermore, it also includes a support tube, which is relatively fixedly connected to the tray and sleeved on the second rotating shaft. The support tube has a conical hole and a circular hole inside. The circular hole is used to contact the first outer circular surface, and the conical hole is used to contact the conical surface.

[0014] Furthermore, it also includes a positioning mechanism, which includes a positioning block, a bracket, a guide rod and a positioning spring, one end of the bracket is fixedly connected to the support cylinder, the guide rod is arranged radially along the driven pulley, one end of the guide rod is slidably connected to the other end of the bracket, and the other end of the guide rod is slidably connected to the positioning block, the positioning spring is arranged between the other end of the bracket and the positioning block, the outer wall of the transmission belt has an annular protrusion, and under the action of the positioning spring, the protrusion extends into the positioning groove on the positioning block, thereby realizing the axial positioning between the transmission belt and the active pulley, and the transmission belt and the driven pulley along the pulley axis.

[0015] The beneficial effects of the present invention are as follows: the present invention respectively places seeds of two intercropped crops by setting different rows of first boxes and second boxes; the setting of variable box is used to meet the needs of intercropping of different types of crops; when the same seeds as those in the first box are placed in the variable box, the second crop is planted between every two adjacent rows of the first crop after sowing, which is suitable for intercropping of two crops with the same sowing width; when the same seeds as those in the second box are placed in the variable box, the second crop is planted between two rows of the first crop after sowing, and the planting width of the second crop is greater than that of the first crop, which is suitable for intercropping of two crops with different sowing widths, such as intercropping of corn and soybeans. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of the first embodiment of the present invention;

[0017] Figure 2 for Figure 1 Left view of;

[0018] Figure 3 for Figure 1 Rear view;

[0019] Figure 4 for Figure 1 A top view of

[0020] Figure 5 is a three-dimensional diagram of the bracket;

[0021] Figure 6 The three-dimensional assembly drawing of the first seed box and the seed taking unit;

[0022] Figure 7 for Figure 6 A top view of

[0023] Figure 8 for Figure 7 AA section view in;

[0024] Figure 9 This is a schematic diagram of the working state of the first embodiment of the present invention;

[0025] Figure 10 It is a rear view of the second embodiment of the present invention;

[0026] Figure 11 This is a front view of the second embodiment of the present invention;

[0027] Figure 12 It is a left side view of the second embodiment of the present invention;

[0028] Figure 13 A top view of a line spacing adjustment unit according to a second embodiment of the present invention;

[0029] Figure 14 It is a cross-sectional assembly drawing of the locking mechanism and the support;

[0030] Figure 15 for Figure 12 A local enlarged view of point B in FIG;

[0031] Figure 16 This is a top view of the transmission between the first rotating shaft and the second rotating shaft of the third embodiment of the present invention;

[0032] Figure 17 This is a left-side transmission diagram between the first rotating shaft and the second rotating shaft of the third embodiment of the present invention;

[0033] Figure 18 for Figure 17 The CC section view in the figure;

[0034] Figure 19 Schematic diagram of transmission adjustment between the first rotating shaft and the second rotating shaft in embodiment 3 of the present invention;

[0035] In the figure: 1 tray, 11 first groove, 12 second groove, 13 tray through hole, 2 first box, 2' second box, 2 "variable box, 21 box through hole, 22 take the box, 23 take the box flange, 24 block, 25 shaft hole, 3 take the wheel, 31 take the hole, 4 lead box, 41 lead box flange, 42 joint, 43 lead pipe, 431 hard tube part, 432 hose part, 5 first rotating shaft, 5' second rotating shaft, 51 square segment, 6 driven sprocket, 61 driving sprocket, 62 transmission chain, 63 driving pulley, 64 driven pulley, 641 first outer cylindrical surface, 642 conical surface, 643 second Outer cylindrical surface, 65 transmission belt, 66 walking wheel axle, 67 protrusion, 7 first lead screw, 71 first nut, 72 fixed seat, 73 support, 731 locking groove, 732 sleeve hole, 74 handle, 741 locking strip, 742 sleeve, 75 snap ring, 76 locking spring, 77 spring seat, 8 second lead screw, 81 second nut, 9 adjusting cylinder, 91 wheel disc, 92 tensioning pulley, 921 wheel frame, 922 tensioning cylinder, 93 support tube, 931 tapered hole, 932 round hole, 94 bracket, 95 guide rod, 96 positioning spring, 97 positioning block, 971 positioning groove, 98 bearing, 10 seed. DETAILED DESCRIPTION

[0036] like Figures 1 to 19 As shown, the present invention comprises a tray 1, a first type box 2, a second type box 2', a variable seed box 2", a seed taking unit and a transmission unit. The present invention will be described in detail below with reference to the accompanying drawings.

[0037] Example 1:

[0038] like Figures 1 to 9 As shown, the intercropping sowing seed collection and seeding assembly includes a tray 1, a first box 2, a second box 2', a variable seed box 2", a seed collection unit and a transmission unit. The first box 2 is arranged in two on the left and right and is located at the rear end of the tray 1. The second box 2' is arranged in two on the left and right and is located at the front end of the tray 1. The variable seed box 2" is located between the two first boxes 2. The seeds of the first crop planted in intercropping are placed in the first box 2, and the seeds of the second crop planted in intercropping are placed in the second box 2'. The same seeds as those in the first box 2 or the second box 2' are placed in the variable seed box 2". In order to facilitate the assembly of the first box 2, the second box 2' and the variable seed box 2", as shown in FIG. Figure 5As shown, the tray 1 has a "convex"-shaped structure, and the upper surface of the tray 1 has two rows of grooves arranged in front and back, wherein the rear end of the tray 1 has three first grooves 11, and the front end of the tray 1 has two second grooves 12. The bottoms of the first type box 2 and the variable type box 2" extend into the corresponding first grooves 11, and the bottom of the second type box 2' extends into the corresponding second grooves 12. Five tray through holes 13 are also provided on the tray 1, of which three tray through holes 13 are provided at the bottom of the first groove 11 and pass through the tray 1, and the other two tray through holes 13 are provided at the bottom of the second groove 12 and pass through the tray 1.

[0039] like Figures 1 to 4 As shown, the bottom of the first seed box 2, the second seed box 2', and the variable seed box 2" all have a seed box 22, as shown in FIG. Figure 7 、 Figure 8 As shown, the bottoms of the first seed box 2, the second seed box 2' and the variable seed box 2" all have seed box through holes 21, the upper ends of the seed taking boxes 22 are in contact and fixed with the bottoms of the corresponding seed boxes (the first seed box 2, the second seed box 2' and the variable seed box 2"), and the seed taking boxes 22 are connected to the seed box through holes 21. The first seed box 2, the second seed box 2' and the variable seed box 2" are all provided with a seed taking unit at the bottom. The seed taking unit includes a lead-out box 4, a lead-out tube 43 and a seed taking wheel 3. The lead-out box 4 is fixed to the bottom of the seed taking box 22. Specifically, the seed taking box 22 has a seed taking box flange 23 at the bottom, and the lead-out box 4 has a lead-out box flange 41 at the top. The seed taking box flange 23 contacts the lead-out box flange 41 and is fixed together by bolts. The seed taking wheel 3 is rotatably installed in the seed taking box 22 and contacts the left and right side walls of the seed taking box 22. The circular outer wall of the seed taking wheel 3 has seed taking holes 31 arranged at equal intervals. The seed taking holes 31 are blind holes. A stopper 24 is provided between the seed taking wheel 3 and the front and rear inner walls of the seed taking box 22. The side of the stopper 24 is in contact with the seed taking box 22. The inner wall of the lead-out box 4 is in contact with the bottom surface of the block 24 and the circular outer wall of the seed wheel 22. The minimum distance between the two blocks 24 is greater than the diameter of the seed hole 31. After the seeds in various boxes enter the seed box 22, they are gathered between the two blocks 24 and then enter the seed hole 31. The setting of the block 24 can guide the seeds into the seed hole 31. The upper end of the lead-out tube 43 is connected to the bottom of the lead-out box 4, and the lower end of the lead-out tube 43 faces the ground. When the seeds enter the lead-out tube 43, the seeding of the seeds is realized. Specifically: the bottom of the lead-out box 4 has a joint 42, the joint 42 has an external thread, and the upper end of the lead-out tube 43 is threadedly connected to the joint 42. An axial hole 25 coaxially arranged with the seed wheel 3 is also provided on the side wall of the seed box 22, such as Figure 3 As shown, the outlet pipe 43 below the second seed box 2 ′ is located between the outlet pipes 43 below the first seed box 2 and the variable seed box 2 ″.

[0040] like Figure 3 、 Figure 4As shown, the seed taking wheel 3 of the seed taking unit at the bottom of the first seed box 2 and the variable seed box 2' is coaxially arranged through the first rotating shaft 5, and the seed taking wheel 3 of the seed taking unit at the bottom of the second seed box 2' is coaxially arranged through the second rotating shaft 5'. The transmission unit is arranged between the first rotating shaft 5 and the second rotating shaft 5' to transmit the rotational motion of the first rotating shaft 5 to the second rotating shaft 5". Specifically: Figure 1 As shown, the transmission unit includes a driving pulley 63, a driven pulley 64, and a transmission belt 65. The driving pulley 63 is fixed to the first rotating shaft 5, and the driven pulley 64 is fixed to the second rotating shaft 5'. The transmission belt 65 is located between the driving pulley 63 and the driven pulley 64. When the first rotating shaft 5 rotates, the driving pulley 63 rotates synchronously with it, and drives the driven pulley 64 to rotate through the transmission belt 65, thereby rotating the second rotating shaft 5'. When the transmission ratio between the first rotating shaft 5 and the second rotating shaft 5' is greater than 1, the sowing spacing of the seeds in the first seed box 2 is smaller than the sowing spacing of the seeds in the second seed box 2'. When the transmission ratio between the first rotating shaft 5 and the second rotating shaft 5' is less than 1, the sowing spacing of the seeds in the first seed box 2 is larger than the sowing spacing of the seeds in the second seed box 2'.

[0041] like Figure 1 As shown, the sowing machine further includes a drive unit, which includes a driving sprocket 61 coaxially arranged with a travel wheel shaft 66 of the sowing machine, a driven sprocket 6 coaxially arranged with the first rotating shaft 5, and a transmission chain 62 arranged between the driving sprocket 61 and the driven sprocket 6. When the sowing machine is moving, the travel wheel drives the rotation of the first rotating shaft 5 through the drive unit, so that the sowing spacing of the seeds in the first seed box 2 matches the travel speed of the sowing machine.

[0042] like Figure 9 As shown, during use, seeds 10 of the first crop are added to the first seed box 2, and seeds 10 of the second crop are added to the second seed box 2. When the sowing widths of the first crop and the second crop are the same, the seeds of the first crop are added to the variable seed box 2". In this case, after sowing, there is a row of the second crop between two adjacent rows of the first crop. When the sowing widths of the first crop and the second crop are different, such as in intercropping corn and soybeans, where the soybean sowing width is larger than the corn sowing width, the seeds of the second crop (soybean) are added to the variable seed box 2". In this case, after sowing, there are three rows of the second crop (soybean) between two adjacent rows of the first crop (corn).

[0043] Example 2:

[0044] like Figures 10 to 15 As shown in FIG, this is the second embodiment of the present invention. The difference between the second embodiment and the first embodiment is that it further includes a line spacing adjustment unit. Figures 10 to 13As shown, the row spacing adjustment unit includes a first screw 7, a second screw 8, a first screw nut 71 and a second screw nut 81. The first screw 7 and the second screw 8 are connected to the tray 1 for relative rotation. The first screw nut 71 is fixedly connected to the outlet pipe 43 below the first box 2, specifically: Figure 10 、 Figure 11 As shown, the outlet pipe 43 below the first type box 2 includes a hard tube portion 431 provided at the upper and lower ends and a soft tube portion 432 located in the middle. The hard tube portion 431 at the upper end of the outlet pipe 43 is threadedly connected to the joint 42. The first nut 71 has a clamping ring 75. The hard tube portion 431 at the lower end of the outlet pipe 43 extends into the clamping ring 75 and is fixedly connected to the clamping ring 75. The first nut 71 has two sections of external threads respectively located at the two ends of the first screw 7. The two ends of the first screw 7 have two sections of external threads with opposite rotation directions, so that the movement directions of the two first nuts 71 on the first screw 7 are always opposite. The second nut 81 is fixedly connected to the outlet pipe 43 below the second type box 2', specifically: Figure 10 、 Figure 11 As shown, the lead-out pipe 43 below the second seed box 2' includes a hard tube portion 431 provided upper and lower and a soft tube portion 432 located in the middle. The hard tube portion 431 at the upper end of the lead-out pipe 43 is threadedly connected to the joint 42. A clamping ring 75 is provided on the second nut 71. The hard tube portion 431 at the lower end of the lead-out pipe 43 extends into the clamping ring 75 and is fixedly connected to the clamping ring 75. The second nut 81 has two and is located at both ends of the second lead screw 8. The two ends of the second lead screw 8 have external threads with opposite rotation directions, so that the movement directions of the two second nuts 81 on the second lead screw 8 are always opposite. The lead-out pipe 43 below the variable seed box 2" is a straight tube and a hard tube. A fixing seat 72 is fixed on the lead-out pipe 43 below the variable seed box 2", and the middle part of the first lead screw 7 is rotatably connected to the fixing seat 72. When the first lead screw 7 rotates, it drives the first nut 71, which in turn drives the hard tube portion 431 at the lower end of the outlet tube 43. The lower end of the flexible tube portion 432 then moves to accommodate the movement of the first nut 71. When the second lead screw 8 rotates, it drives the second nut 81, which in turn drives the hard tube portion 431 at the lower end of the corresponding outlet tube 43. The lower end of the flexible tube portion 432 then moves to accommodate the movement of the second nut 81. The flexible tube portion 432 of the outlet tube 43 is designed as a telescopic structure, or a curved shape, to accommodate the movement of the first and second nuts 71, 81.

[0045] like Figure 10As shown, each of the first and second lead screws 7, 8, has a handle 74 at one end. Specifically, each of the first and second lead screws 7, 8, has a support 73 at its ends. The support 73 is fixedly connected to the tray 1, and the first and second lead screws 7, 8, are rotatably connected to the support 73. A locking mechanism is provided between the handle 74 and the support 73 at the corresponding ends of the lead screws (first and second lead screws 7, 8). The locking mechanism is provided to lock the handle 74 and the support 73, thereby preventing the first and second lead screws 7, 8 from rotating or rotating on their own.

[0046] like Figure 14 、 Figure 15 As shown, the locking mechanism includes a locking spring 76 and a sleeve 742. The sleeve 742 is fixed to one end of the handle 74. The support 73 has a sleeve hole 732. The sleeve 742 extends from one end of the sleeve hole 732 into the sleeve hole 732 and is axially slidably connected to the corresponding end of the first screw 7 and relatively fixed along the circumferential direction. The other end of the sleeve hole 732 has a spring seat 77, and the locking spring 76 is arranged between the spring seat 77 and the sleeve 742. The other end of the handle 74 has a locking strip 741, and the end surface of the support 73 has a plurality of locking grooves 731 evenly arranged along the circumference. Under the action of the locking spring 76, the locking strip 741 extends into the locking groove 731 to achieve locking and fixing of the handle 74 and the support 73.

[0047] When the sowing row spacing needs to be adjusted, the first screw 7 and / or the second screw 8 can be rotated by the handle 74 to cause the first screw 71 to move axially along the first screw 7 and the second screw 81 to move axially along the second screw 8, thereby adjusting the spacing between the hard tube portion 431 at the lower end of the outlet tube 43, thereby adjusting the sowing row spacing, that is, the spacing between two adjacent rows of the first crop, the spacing between two adjacent rows of the second crop, and the spacing between the first crop and the second crop. Example 2 can be used to select and arrange seeds according to the combination of intercropped crop types, thereby adjusting the sowing spacing to meet the needs of different intercropping combinations.

[0048] Example 3:

[0049] like Figures 16 to 19As shown, the difference between Example 3 and Example 1 is that the transmission ratio of the transmission unit between the first rotating shaft 5 and the second rotating shaft 5' is adjustable. The transmission unit includes a driving pulley 63, a driven pulley 64, a transmission belt 65, a tensioning mechanism and an adjusting mechanism. The driving pulley 63 is fixed on the first rotating shaft 5, and the driven pulley 64 is fixed on the second rotating shaft 5'. The outer surface of the driven pulley 64 includes a first outer cylindrical surface 641, a conical surface 642 and a second outer cylindrical surface 643 arranged in sequence. The diameter of the first outer cylindrical surface 641 is smaller than the diameter of the second outer cylindrical surface 643, so that the driven pulley 64 as a whole is a conical structure with one end small and the other end large. The adjusting mechanism is relatively fixedly connected to the tray 1 and is used to drive the driven pulley 64 to move along its own axis, so that the first outer cylindrical surface 641 or the second outer cylindrical surface 643 contacts the transmission belt 65. Specifically: Figure 16 As shown, the adjustment mechanism includes an adjustment cylinder 9 and a wheel disc 91 . The wheel disc 91 is fixed on the piston rod of the adjustment cylinder 9 , and the wheel disc 91 is in contact with and fixed to the end surface of the other end of the driven pulley 64 .

[0050] like Figure 17 As shown, the tensioning mechanism includes a tensioning cylinder 922 and a tensioning pulley 92. The tensioning cylinder 922 is vertically arranged and fixedly connected to the pallet 1. The piston rod of the tensioning cylinder 922 is provided with a wheel frame 921. The tensioning pulley 92 is rotatably mounted on the wheel frame 921. The transmission belt 65 is arranged between the driving pulley 63, the driven pulley 65 and the tensioning pulley 92. The tensioning mechanism is used to keep the transmission belt 65 in a tensioned state to ensure the transmission of power between the driving pulley 63 and the driven pulley 64.

[0051] like Figure 16 As shown, when the transmission belt 65 contacts the first outer surface 641 on the driven pulley 64, the transmission ratio between the driving pulley 63 and the driven pulley 64 is the outer diameter of the first outer surface 641 divided by the diameter of the driving pulley 63. When the transmission ratio between the first rotating shaft 5 and the second rotating shaft 5' needs to be adjusted, as shown in FIG. Figure 19 As shown, the piston rod of the regulating cylinder 9 extends to drive the driven pulley 64, causing the transmission belt 65 to leave the first outer surface 641 and move onto the tapered surface 642. At this time, the piston rod of the tensioning cylinder 922 extends to loosen the transmission belt 65, thereby increasing the length of the upper transmission belt 65 as the transmission belt 65 moves along the tapered surface 642. Until the second outer surface 643 of the driven pulley 64 contacts the transmission belt 65, the extension of the piston rod of the tensioning cylinder 922 should match the extension of the piston rod of the regulating cylinder 9 to ensure that the transmission belt 65 remains tensioned.

[0052] like Figures 17 and 18As shown, the transmission unit also includes a support cylinder 93, which is fixedly connected to the tray 1 and sleeved onto the second rotating shaft 5'. The support cylinder 93 has a bearing 98, and the second rotating shaft 5' extends into the inner ring of the bearing 98, thereby rotatably connecting the support cylinder 93 and the second rotating shaft 5'. The support cylinder 93 has a tapered hole 931 and a circular hole 932 inside. The circular hole 932 is designed to contact the first outer circular surface 641, and the tapered hole 931 is designed to contact the tapered surface 642. When the first outer circular surface 641 and the tapered surface 642 of the driven pulley 64 partially extend into the support cylinder 93, the support cylinder 93 provides support for the driven pulley 64.

[0053] like Figure 18 As shown, the transmission unit also includes a positioning mechanism, which includes a positioning block 97, a bracket 94, a guide rod 95 and a positioning spring 96. One end of the bracket 94 is fixedly connected to the side wall of the support cylinder 93, and the guide rod 95 is arranged radially along the driven pulley 64. One end of the guide rod 95 is slidably connected to the other end of the bracket 94, and the other end of the guide rod 95 is slidably connected to the positioning block 97. The positioning spring 96 is arranged between the other end of the bracket 94 and the positioning block 97. The outer wall of the transmission belt 65 has an annular protrusion 67. Under the action of the positioning spring 96, the protrusion 67 extends into the positioning groove 971 on the positioning block 97, thereby realizing the axial positioning of the transmission belt 65 and the driving pulley 63, and the transmission belt 65 and the driven pulley 64 along the pulley (driving pulley 63 or driven pulley 64). In order to achieve relative fixation in the circumferential direction and relative sliding connection in the axial direction between the driven pulley 64 and the second rotating shaft 5', as shown in FIG. Figure 19 As shown, the end of the second rotating shaft 5' that extends into the driven pulley 64 is a square section 51. Correspondingly, the driven pulley 64 has a square socket that plugs into the square section 51. As the transmission belt 65 moves along the conical surface 642 toward the second outer surface 643, the transmission belt 65 moves radially outward along the driven pulley 64. At this time, the elastic force of the positioning spring 96 is overcome and the positioning spring 96 is compressed, causing the positioning block 97 to move radially outward along the driven pulley 64. Under the action of the positioning spring 96, the positioning block 97 maintains contact with the transmission belt 65, preventing the transmission belt 65 from separating from the driving pulley 63 due to misalignment.

[0054] The present invention utilizes different rows of first and second seed boxes to store seeds of two intercropped crops, respectively. The variable seed box arrangement allows for intercropping of different crop combinations. When the variable seed box contains the same seeds as those in the first box, the second crop is planted between two adjacent rows of the first crop after sowing, making it suitable for intercropping two crops with the same sowing width. When the variable seed box contains the same seeds as those in the second box, the second crop is planted between two rows of the first crop after sowing, with the second crop having a wider planting width than the first crop. This makes it suitable for intercropping two crops with different sowing widths, such as corn and soybean intercropping. The transmission unit has an adjustable transmission ratio, thereby adjusting the rotational speeds of the first and second rotating shafts, and thus the plant spacing during sowing. The row spacing adjustment unit can adjust the row spacing between the first and second crops, between two rows of the first crop, and between two rows of the second crop after sowing, thereby meeting the intercropping needs of different crop combinations.

Claims

1. Intercropping sowing and seeding assembly, characterized by: The invention comprises a tray, a first seed box, a second seed box, a variable seed box, a seed taking unit and a transmission unit, wherein the first seed box is provided in two on the left and right and is located at the rear end of the tray, the second seed box is provided in two on the left and right and is located at the front end of the tray, the variable seed box is located between the two first seed boxes, the first seed box is used to place seeds of the first crop planted intercropped, the second seed box is used to place seeds of the second crop planted intercropped, and the variable seed box is used to place the same seeds as those in the first seed box or the second seed box; the bottoms of the first seed box, the second seed box and the variable seed box are all provided with a seed taking box, the seed taking unit comprises an outlet box, an outlet pipe and a seed taking wheel, the outlet box is fixed to the bottom of the seed taking box, the seed taking wheel is rotatably installed in the seed taking box and is connected to the seed taking box The left and right side walls are in contact, and the circular outer wall of the seed-taking wheel is provided with seed-taking holes arranged at equal intervals. A block is provided between the seed-taking wheel and the front and rear inner walls of the seed-taking box. After the seeds in various boxes enter the seed-taking box, they are gathered between the two blocks and then enter the seed-taking holes. The upper end of the lead-out tube is connected to the bottom of the lead-out box, and the lower end of the lead-out tube faces the ground; the lead-out tube below the second seed box is located between the lead-out tube below the first seed box and the variable seed box, the seed-taking wheels of the seed-taking units at the bottom of the first seed box and the variable seed box are coaxially arranged through the first rotating shaft, and the seed-taking wheels of the seed-taking units at the bottom of the second seed box are coaxially arranged through the second rotating shaft, and the transmission unit is arranged between the first rotating shaft and the second rotating shaft to transmit the rotational motion of the first rotating shaft to the second rotating shaft; The transmission unit comprises a driving pulley, a driven pulley, a transmission belt, a tensioning mechanism and an adjusting mechanism, the driving pulley being fixed to the first rotating shaft, the driven pulley being fixed to the second rotating shaft, the transmission belt being located between the driving pulley and the driven pulley, the outer surface of the driven pulley comprising a first outer cylindrical surface, a conical surface and a second outer cylindrical surface which are sequentially arranged, the diameter of the first outer cylindrical surface being smaller than the diameter of the second outer cylindrical surface, the adjusting mechanism being fixedly connected to the tray relatively and fixedly connected to the tray, and the tensioning mechanism comprising a tensioning cylinder and a tensioning wheel, the tensioning cylinder being vertically arranged and fixedly connected to the tray relatively, the piston rod of the tensioning cylinder having a wheel frame, the tensioning wheel being rotatably mounted on the wheel frame, and the transmission belt being arranged between the driving pulley, the driven pulley and the tensioning wheel; the tensioning mechanism being used to keep the transmission belt in a tensioned state. The support tube further comprises a support tube fixedly connected to the tray and sleeved on the second rotating shaft, wherein the support tube has a tapered hole and a circular hole inside, wherein the circular hole is used to contact the first outer circular surface, and the tapered hole is used to contact the tapered surface; The cam is connected to the support tube by a spring, and the cam is connected to the support tube by a spring. The cam is connected to the support tube by a spring. The cam is connected to the support tube by a spring.

2. The intercropping sowing and seeding assembly according to claim 1, characterized in that: It also includes a driving unit, which includes a driving sprocket coaxially arranged with the planter walking wheel, a driven sprocket coaxially arranged with the first rotating shaft, and a transmission chain arranged between the driving sprocket and the driven sprocket.

3. The intercropping sowing, seed collection and seed discharge assembly according to claim 1, characterized in that: The bottom of the seed taking box is provided with a seed taking box flange, and the top of the lead-out box is provided with a lead-out box flange. The seed taking box flange is in contact with the lead-out box flange and is fixedly connected together by bolts.

4. The intercropping sowing, seed collection and seed discharge assembly according to claim 1, characterized in that: It also includes a line spacing adjustment unit, which includes a first lead screw, a second lead screw, a first nut and a second nut. The first lead screw and the second lead screw are both connected to the tray for relative rotation. The first nut is fixedly connected to the lead-out pipe below the first box. The first nut has two and is respectively located at the two ends of the first lead screw. The second nut is fixedly connected to the lead-out pipe below the second box. The second nut has two and is respectively located at the two ends of the second lead screw. The end of one of the first lead screw and the second lead screw has a handle.

5. The intercropping sowing, seed collection and seed discharge assembly according to claim 4, characterized in that: Both ends of the first screw and the second screw have a support, the support is relatively fixedly connected to the tray, and the first screw and the second screw are both rotatably connected to the support; a locking mechanism is provided between the handle and the support at the corresponding end of the screw.

6. The intercropping sowing, seed collection and seed discharge assembly according to claim 5, characterized in that: The locking mechanism includes a locking spring and a sleeve, the sleeve is fixed to one end of the handle, the support is provided with a sleeve hole, the sleeve extends into the sleeve hole from one end of the sleeve hole and is axially slidably connected with the corresponding end of the screw and relatively fixed along the circumferential direction, the other end of the sleeve hole is provided with a spring seat, the locking spring is arranged between the spring seat and the sleeve; the other end of the handle is provided with a locking strip, the end surface of the support is provided with a plurality of locking grooves evenly arranged along the circumferential direction, and under the action of the locking spring, the locking strip extends into the locking groove to realize the relative fixation of the handle and the support.

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