Seeding machine driven in groups

Abstract

The utility model relates to a seeding machine driven in groups, which belongs to the field of agricultural machinery and comprises seeding row units, adjusters and seed-metering devices, the adjusters are additionally arranged on the seeding machine, and all the seed-metering devices of the seeding machine are divided into a front row and a rear row; all the seed-metering devices of the seeder are divided into a front row and a rear row, the seed-metering devices located in the front row are driven by a second driving shaft, and the seed-metering devices located in the rear row are driven by a first driving shaft; during working, the seed-metering rotation angle of the seed-metering device in the front row is positioned by the seed-metering rotation angle of the seed-metering device in the rear row, so that the seeding machine enables seeds between adjacent rows to be arranged in a preset staggered mode in the advancing direction, and when the seeding plant spacing is changed, the staggered mode of the seeds can be changed; the angle adjuster can be used for changing the seed metering position of the seed metering device in the front row, so that a preset staggered mode can be recovered for seed distribution, and reasonable arrangement of seeds is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field, concretely relates to a group drive's seeding machine. BACKGROUND

[0002] Now's seeding machine, according to the agronomic demand, need to sow multiple (row) seeds on a ridge.Each row of seeds has a corresponding seeding unit, and each row unit is equipped with a rotary seed metering device, and multiple seeding units work together, in order to avoid mutual interference, a front and rear arrangement is adopted, and this arrangement can realize accurate seed placement at a certain plant distance, and accurate seed placement refers to the seed metering device of adjacent rows along the advancing direction of the seed metering device, and the seed metering device of adjacent rows alternately sows seeds, and the so-called triangular seedling or crooked seedling mode appears, so that the nutrients of various seeds are balanced, such as Figure 13 the triangular pattern connected by the dashed line.When the plant distance changes, the adjacent row seed placement relationship becomes poor, and in severe cases, the seeds of adjacent rows appear in parallel, and in order to realize accurate seed placement at any plant distance, a seeding device capable of adjusting the seed placement position of adjacent rows at any time is required, and the domestic new type patent CN222485296U discloses a seeding unit capable of changing the seed placement position of adjacent rows by moving the row unit, and the structure is complex and inconvenient to adjust. SUMMARY

[0003] In order to overcome the deficiencies existing in the prior art, the utility model provides a group drive's seeding machine to solve the foregoing technical problems.

[0004] The utility model discloses a technical scheme that solves its technical problem is, a kind of seeding machine of group drive, all seed metering device is divided into front row and rear row, the seed metering device of front row is powered by second drive shaft, the seed metering device of rear row is powered by first drive shaft, the seed metering device of front row and rear row is equal in rotational speed in working, when initially installing, all seed metering device is unified seed metering disc initial position, i.e.

[0005] The utility model discloses the beneficial effect is, adjustment simple, only need one hand adjustment, a screw fixed hand, adjustment is quick, once can adjust all seed metering device needing adjustment in seeding machine, work reliably, manufacture easily. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 , it is the front view of the utility model's adjuster, and its whole is quadrilateral hexahedron structure, and input shaft 14 front end, input gear 1, tensioner outer arm 13, tensioner spring 12, arm shaft 17, upper end angle scale 38, adjustment handle 10, the direction of rotation of gear 1 is indicated, and it is noted that it cannot be used reversely, and the rest dotted line part is in the interior of adjuster and cannot be seen;

[0007] Figure 2, is the rear view of the adjuster of the utility model, can see the output shaft 15, the output gear 6, the rotation direction indication 40 of the output gear, the adjustment handle 10 of the upper end, the rest dotted line part cannot be seen outside in the shell inside;

[0008] Figure 3 , is the sectional view of the adjuster of the utility model, because the input shaft 14 and the output shaft 15 are almost in a plane, so draw the whole input shaft 14 below, only draw the end of the input shaft and the input gear 1 on the top to show its actual working position;

[0009] Figure 4 , is the long chain 21 of the utility model and the gear engaged transmission thereof;

[0010] Figure 5 , is the short chain 22 of the utility model and the gear engaged transmission thereof, the adjustment handle 10 and various hole positions and parts installed on the upper thereof;

[0011] Figure 6 , is the rear view of the position drawing of each part of the utility model assembled together;

[0012] Figure 7 , is the working transmission schematic view of the adjuster 30 and the secondary adjuster 25 of the utility model, in order to work reliably, all transmission chains and gears are provided with anti-jumping chain devices 29, the anti-jumping chain devices work closely to the chain but not press down;

[0013] Figure 8 , is the installation transmission schematic view of the simple adjuster of the utility model when working on the seeding machine;

[0014] Figure 9 , is the exploded view of the simple adjuster 78 and the secondary adjuster assembly 25 of the utility model, both structures are completely same, the secondary adjuster does not have angle scale line;

[0015] Figure 10 , is the top view of the seeding machine of the utility model, in order to show clearly, the parts of two seeding units are not drawn completely, can refer to another row of figure and Figure 11 、 Figure 12 ;

[0016] Figure 11 , is the left view of the connected seeding row unit of the utility model;

[0017] Figure 12 , is the right view of the connected seeding row unit of the utility model;

[0018] Figure 13, the right side of the front row seed position is just in the position of the vertex B of the isosceles triangle, and the position of the seed discharged by the front row seed position is just in the position of the vertex B of the isosceles triangle, and the position of the seed discharged by the front row seed position is just in the position of the vertex B of the isosceles triangle, and the position of the seed discharged by the front row seed position is just in the position of the vertex B of the isosceles triangle, Figure 13 The seed position represented by the double dashed line in the middle is the initial rotation angle difference of the seed discharge disc of the front and rear rows of seeders 62, 52, that is, the seed discharge pattern when the front and rear rows of seeders simultaneously seed, and it can be seen that the adjacent rows of seeds appear parallel phenomenon;

[0019] Figure 14 , the right side of the front row seed position is just in the position of the vertex B of the isosceles triangle, and the position of the seed discharged by the front row seed position is just in the position of the vertex B of the isosceles triangle, and the position of the seed discharged by the front row seed position is just in the position of the vertex B of the isosceles triangle, and the position of the seed discharged by the front row seed position is just in the position of the vertex B of the isosceles triangle,

[0020] Figure 15 , the right side of the front row seed position is just in the position of the vertex B of the isosceles triangle, and the position of the seed discharged by the front row seed position is just in the position of the vertex B of the isosceles triangle, and the position of the seed discharged by the front row seed position is just in the position of the vertex B of the isosceles triangle, and the position of the seed discharged by the front row seed position is just in the position of the vertex B of the isosceles triangle, Figure 15 The seed position represented by the double dashed line in the middle is the initial rotation angle difference of the seed discharge disc of the front and rear rows of seeders 62, 52, that is, the seed discharge pattern when the front and rear rows of seeders simultaneously seed, and it can not form an isosceles triangle pattern with the seed on the left side, so its position is wrong.

[0021] Figure 16 , the initial angle of all seeders of the utility model is positioned uniformly with a certain point of the shell as the base point;

[0022] Figure 17 , the structure view of the seeder of the utility model is shown in the figure;

[0023] Figure 18 , the structure view of the seeder of the utility model is shown in the figure;

[0024] Parts in the figure are explained as follows:

[0025] 1, input gear, 2, driving gear, 3, driven gear, 4, intermediate shaft transmission gear, 5, output shaft transmission gear, 6, output gear, 7, anti-jumping chain gear, 8, anti-jumping chain gear, 9, tensioner, 10, adjustment handle, 11, tensioner inner arm, 12, tensioner spring, 13, tensioner outer arm, 14, input shaft, 15, output shaft, 16, intermediate shaft, 17, arm shaft, 18, shell, 19, anti-jumping chain bearing, 20, locking screw, 21, long chain, 22, short chain, 23, tensioner, 24, bearing, 25, secondary adjuster, 26, gear, 27, second drive shaft, 28, first drive shaft, 29, anti-jumping chain bearing, 30, adjuster, 31, gear, 32, transmission chain, 33, adjuster base, 34, adjuster gear, 35, locking screw, 36, waist-shaped hole, 37, fixing screw, 38, angle scale, 39, gear mark, 40, rotation direction indication, 41, seeder beam, 42, second drive group gear, 43, U-shaped bolt, 44, first drive group gear, 45, transmission intermediate shaft, 46, four-link assembly, 47, row unit front half, 48, parallel link, 49, swing shaft, 50, center shaft, 51, connecting shaft, 52, rear row seeder, 53, single roller, 54, furrow opener, 55, depth limiting wheel, 56, small soil support, 57, pivot shaft, 58, row unit left rear half, 59, roller carrier, 60, row unit right rear half, 61, seeder shaft, 62, front row seeder, 63, gear 63, 64, double roller, 65, flange waist-shaped hole, 66, support, 67, four-link shaft, 68, seeder gear, 69, depth adjustment wrench, 70, pressure adjustment wrench, 71, long hole, 72, intermediate double gear, 73, washer, 74, spacer, 75, pressure spring, 76, spacer tube, 77, shell mark, 78, simple adjuster, 79, nut, 80, flange nut;

[0026] The utility model is further explained in connection with the drawings and examples. DETAILED DESCRIPTION

[0027] The preferred embodiments of the utility model are described below in combination with the drawings. It should be noted that the preferred embodiments described herein are only used to better illustrate the utility model and cannot limit the utility model.

[0028] In the specific embodiment of the utility model, the specific embodiment is introduced by taking the connected seeding row unit as an example, such as Figure 10 , Figure 11 , Figure 12 The connected seeding row unit is composed of one front half 47 and two rear halves (left side 58) (right side 60). The two rear halves of the row unit are arranged in front and back staggered mode. This embodiment is introduced by taking the right side in front and the left side in back as an example. The front half 47 of the seeding row unit is fixedly installed on the seeding machine beam 41 through a four-link rod assembly 46 and a U-shaped bolt 43. The four-link rod assembly has four joint shafts (four-link rod shafts 67). The seeding row unit connected to the joint shafts can produce up and down pivoting movement with the seeding machine beam 41. The left rear half 58 and the right rear half 60 of the connected seeding row unit are respectively pivotably connected to the front half 47 of the connected seeding row unit through the same side parallel connecting rods 48. The parallel connecting rods 48 are provided with pivoting shafts 57 at both ends. The parallel connecting rods 48 are pivotably connected to the middle positions of the front half 47 of the connected seeding row unit and the two rear halves (left side 58 and right side 60) of the connected seeding row unit through the pivoting shafts 57, which can keep the front and rear two halves and the two rear halves floating up and down while keeping the basic vertical movement. A swing shaft center shaft 50 is fixedly installed at the rear lower part of the front half 47 of the connected seeding row unit. A longitudinally arranged swing shaft 49 is pivotably installed on the swing shaft center shaft 50. Horizontal long holes are formed at both ends of the swing shaft 49 to enable the swing shaft connecting shaft 51 to move forward and backward during work. The swing shaft connecting shaft 51 has two parts. The outer shape is a large bolt. However, the head part is not hexagonal but yuanbao-shaped, as shown in the enlarged end part of the connecting shaft 51 in Figure 10 The swing shaft connecting shaft 51 is fixedly installed at the front lower part of the two rear halves (left side 58 and right side 60) of the seeding row unit through the external threads and the internal thread holes at the front lower part of the two rear halves, and is fastened by a nut 79. During work, the end part of the swing shaft connecting shaft 51 moves forward and backward, as shown in Figure 10The upper and lower heavy straight lines are shown to prevent them from being pulled out of the long holes at both ends of the swing shaft. When disassembling, rotate the end by 90 degrees so that it can be pulled out of the horizontal long hole at the end of the swing shaft. The swing shaft connecting shaft 51 is reserved for adjustment length of 5 cm. When adjusting, the distance can be adjusted inward by rotating the swing shaft connecting shaft 51, and the two rear halves (left side 58, right side 60) of the connected seeding row unit are pushed outwards to adjust the distance between the two row unit rear halves (left side 58, right side 60). The adjustment is completed together with the adjustment of the parallel connecting rod 48. The specific adjustment method is that the parallel connecting rod 48 front end pivot shaft is reserved for adjustment length of 5 cm, that is, the length of the parallel connecting rod 48 moving outward, and the washer 73 outside the pivot shaft 57 is moved to the inside of the pivot shaft, while the parallel connecting rod 48 is moved to the outside of the pivot shaft. The inside direction is the center axis direction of the connected seeding row unit, and the outside direction is the direction away from the center axis of the connected seeding row unit. When adjusting, the pivot shaft 57 can be removed, the rear half of the seeding row unit (left side 58, right side 60) is moved outward, and the pivot shaft 57 is removed. First loosen the screw 79, then move the swing shaft connecting shaft 51 inward according to the required distance and adjust the pivot shaft 57 of the parallel connecting rod 48 together, so that the rear half of the seeding row unit (left side 58, right side 60) can move outward. After adjustment, tighten the flange screw 80 and nut 79. The function of the swing shaft is to make the two rear halves of the seeding row unit move in association, the left side rises and the right side falls, the right side rises and the left side falls, so that the left and right sides can realize independent contouring seeding. The seed opening disc 54 and depth limiting wheel 55 are installed below the rear half of the connected seeding row unit (left side 58, right side 60). The depth adjusting wrench 69 is used to adjust the opening depth. The seed opening disc 54 is used to open a ditch for seeds, and the depth limiting wheel 55 is used to limit the depth of the ditch opened by the opening disc 54. The depth limiting wheel 55 works with the opening disc 54 to float up and down with the ground contouring. The small soil shifter is used to level the seed ditch for soil covering. The two rear halves of the connected seeding row unit (left side 58, right side 60) have a roller 64 installed movably behind them. The function of the roller is to compact the loosened soil. According to different crops, single roller 53 or double roller 64 can be selected, and the pressure can be adjusted by the pressure wrench. The roller frame 59 can also be disassembled and replaced.The left rear half 58 of the integrated seeding row unit is fixedly installed with the rear row seed meter 52, which receives the power of the first drive shaft 28 transmitted by the transmission chain 32 through the seed meter gear 68 to rotate the seed meter. The right rear half 60 of the integrated seeding row unit is fixedly installed with the front row seed meter 62, which receives the power of the second drive shaft 27 transmitted by the transmission chain 32 through the seed meter gear 68 to rotate the seed meter. The transmission chain 32 is divided into front and rear two sections, and the middle double gear 72 is connected between the front and rear two sections of the transmission chain 32. The middle double gear 72 is rotatably installed on the transmission intermediate shaft 45 by a bearing. The transmission intermediate shaft 45 is fixed on the front half 47 of the seeding row unit. The front and rear two sections of the transmission chain are both provided with a tensioning wheel 23 and a chain anti-jumping bearing 29, which is fixedly installed nearby. The first drive shaft 28 is rotatably installed on the seeding machine beam 41 by a bearing and a bracket 66, and the power source is the gearbox. The second drive shaft 27 is rotatably installed on the seeding machine beam 41 by a bearing and a bracket 66, and the power source is the adjuster 30. The power source of the adjuster 30 is the first drive shaft 28. Figure 7 ,

[0029] The first power transmission path of the seeding machine is: the speed wheel (not shown) → the gearbox → the gearbox output gear 63 → the transmission chain 32 → the first drive input gear 31 → the first drive shaft 28 → the first drive group gear 44 → the transmission chain 32 → the seed meter gear 68 → the seed meter shaft 61 → the rear row seed meter 52. The second power transmission path of the seeding machine is: the first drive shaft 28 → the gear 26 → the adjuster input gear 1 → the input shaft 14 → the adjuster → the output shaft 15 → the output gear 6 transmission chain → the second drive shaft 27 → the second drive group sprocket 42 → the transmission chain 32 → the seed meter gear 68 → the seed meter shaft 61 → the front row seed meter 62.

[0030] As shown in Figure 7 , all seed meters are arranged in front and rear two rows in a transverse arrangement. The seed meters in the front row are powered by the second drive shaft 27, and the seed meters in the rear row are powered by the first drive shaft 28. During initial installation, all seed meters are positioned uniformly according to the following method: Figure 16 Figure 16 ​The 77 in the middle is the reference point, and the rotating seed metering device is aligned with the reference point. All seed metering devices are positioned in the same way, and all seed metering devices are of the same type. When the chain is hung, the adjuster handle mark is aligned with the zero line. The transmission chain between the adjuster output gear 6 and the secondary adjuster 25 gear may not be in the correct driving tension state. The chain should be tensioned on the force receiving side when it is working. At this time, the secondary adjuster can be adjusted. First, loosen the locking screw 35. At this time, the secondary adjuster gear 34 and the secondary adjuster base 33 can be coaxially slid to tighten the chain on the force receiving side when the chain is working. After adjustment, tighten the locking screw 35;

[0031] The optimal position planting adjustment method: as described above, all seed metering devices are positioned with the same outer shell, and all seed metering devices are planted at the same time. If Figure 13 The left side row of solid small circles represents the seed planting situation of the left rear row of seed metering devices when working. The planting time is fixed and cannot be adjusted. The right side row of middle solid small circles represents the correct optimal planting position. The dashed line in the figure connects the seeds of the left side row with the seeds of the correct position of the right side row to form an isosceles triangle pattern to better illustrate the problem. The correct position of the seeds of the right side row should be the position of the apex B of the isosceles triangle, Figure 13 The dashed double circles in the figure represent the incorrect planting position of all seed metering devices when planting at the same time. The arrow direction in the figure is the forward direction of the seed metering devices when working. Therefore, to achieve perfect planting (the position of the apex B of the isosceles triangle), the seed position represented by the dashed double circles in the right side row must be moved forward from point A to point B. Delayed planting can achieve seed forward movement. After trial planting and soil covering, actual measurement shows that the distance from point A to point B is 20 cm. In this embodiment Figure 13 、 Figure 14 、 Figure 15 The distance between the front and rear seed metering devices is fixed at 40 cm. Taking the finger clamp type as an example, the finger clamp rotates one revolution to plant 12 seeds, and the planting interval angle is 30 degrees, as shown in Figure 13 The two large discs in the figure are seed planting disc diagrams, and the square blocks represent the positions of the seed metering devices. The solid small circles represent the correct planting position, and the dashed double circles in the figure represent the incorrect position caused by the simultaneous planting of adjacent seed metering devices. The method for adjusting the planting position: since the positions of the seed metering devices are fixed and cannot be changed, the position of the seeds in the right side row can only be changed by changing the planting time (rotation angle). First, calculate the ratio of the current plant spacing to the planting interval angle. The value represents the distance corresponding to the forward movement of the seed metering device for each degree of rotation of the seed planting disc. The distance between adjacent seeds in the forward direction of the seed metering device is called plant spacing, as shown in Figure 13 The plant spacing is 40 cm, and the angle between the two adjacent finger clamps (seed picking points) in the rotation direction of the seed planting disc is called the planting interval angle, as shown in Figure 13The seed spacing angle of the seed spacing disc is 30 degrees; the ratio of the measured distance to the plant spacing and the seed spacing angle is equal to the angle that needs to be adjusted for the seed spacing disc. Adjusting the direction of the seed spacing disc: adjusting the direction of the seed spacing disc along the working direction will advance the seed spacing time and move the seeds backward, and adjusting the direction of the seed spacing disc against the working direction will delay the seed spacing time and move the seeds forward. In this example, the seed spacing is delayed, so the direction of the seed spacing disc is adjusted against the working direction. For example: the distance to be delayed is 20 cm, the plant spacing is 40 cm, and the seed spacing angle of the seed spacing disc is 30 degrees. The calculation formula is: measured distance 20 cm ÷ (40 cm plant spacing ÷ 30 seed spacing angle) = 15°. Adjust the handle 10 of the adjuster 30 by 15 degrees from the O position to the No. 1 direction. After the adjustment is completed, lock the handle with the locking screw 20. The angle scale of the adjuster is the actual rotation angle of the seed spacing disc. In order to facilitate the explanation and definition in this example, the gear 26, the input gear 1 of the adjuster 30, the output gear 6 of the adjuster 30, the secondary adjuster 25, the second drive group gear 42, the intermediate double gear 72, and the seed spacing disc gear 68 are connected through the transmission chain 32, and the transmission ratio is 1:1. In actual use, the transmission ratio can be varied, but the scale marked by the scale is the actual rotation angle of the seed spacing disc. The calculation result is that the actual scale of the adjuster scale starts from zero. The handle 10 is at the zero position. When adjusting, move the handle according to the calculation result and align the angle.

[0032] Figure 14 The plant spacing is 30 cm, and the measured distance AB is 5 cm, i.e. from the wrong A point to the correct B point is 5 cm. According to the calculation formula:

[0033] The measured delay distance is 5 cm ÷ (plant spacing 30 ÷ seed spacing angle 30) = 5 degrees. Move the handle mark of the adjuster from the zero position to the No. 1 direction scale 5 (delay 5 degrees). Note that the calculation result is a theoretical data. In the trial planting, the principle is to plant two seed spacing discs at the same time, and the zero position of the adjuster handle is the reference zero position. However, due to installation precision and ground wheel slip, there may be some errors in one adjustment. If you want to correct it, you can do a little adjustment after trial planting.

[0034] Figure 15is the seed spacing when the plant spacing is 60 cm, the actual seed spacing at the error position of the right row middle A point is 50 cm in front of the correct position B point and 10 cm behind the correct position B point, according to the formula, the delay seed spacing distance is 50 ÷ (40 ÷ 30) = 25 degrees, the advance seed spacing distance is 10 ÷ (60 ÷ 30) = 5 degrees, according to the calculation result, the A point seed moves 50 cm forward, which is the delay seed spacing, and the seed spacing disc needs to be adjusted by 25 degrees in the reverse working direction, the A point seed moves 10 cm backward, which is the advance seed spacing, and the seed spacing disc needs to be adjusted by 5 degrees in the forward working direction, it is pointed out that, as can be seen from the example, the same seed spacing angle and different plant spacing result in different distances of the seed spacing disc per degree, that is, the ratio of the plant spacing to the seed spacing angle is different, and the ratio of the plant spacing to the seed spacing angle of the selected seed spacing disc is different, and the distance of the seed spacing disc per degree is also different;

[0035] The working principle of the adjuster is that the whole is a square structure, as shown in Figure 1 is a front view, the front of the shell 18 can see that the input shaft 14 extends from the inside of the shell 18 to the outside of the shell 18, and the input gear 1 is fixedly installed thereon, the input shaft 14 is rotatably installed on the front wall and the rear wall of the adjuster shell 18 through the bearing 24, the front end thereof extends out of the shell 18 to introduce power into the shell, and the outer arm 13 of the tensioning wheel 9 can also be seen, the tensioning spring 12 provides tension for the tensioning wheel 9, the upper part of the shell 18 is an opening end of the adjusting handle 10, the adjusting handle extends from the inside of the shell 18 to the outside of the shell 18, and when adjusting, the external adjusting handle 10 can be moved left or right to change the relative angle of the output shaft and the input shaft, and after adjustment, the locking screw 20 is tightened to keep the position unchanged during work; Figure 2 is a rear view of the adjustment device, and the end of the output shaft 15 can be seen, and the output gear 6 is fixedly installed thereon, and the output shaft 15 is rotatably installed on the front wall and the rear wall of the adjuster shell 18 through the bearing 24, which introduces the internal power out of the shell 18. Figure 3 is a left sectional view of the adjuster, since the input shaft 14 and the output shaft 15 are basically parallel in the installation of the shell, and the input shaft 14 blocks the front of the output shaft 15 in the view, Figure 3 in the installation position of the input shaft 14, only the front half of the input shaft 14 is drawn, and the whole input shaft 14 is drawn below Figure 3 . The input shaft 14 and the output shaft 15 are rotatably installed on the front wall and the rear wall of the adjuster shell 18 through the bearing 24 respectively;

[0036] The working principle is as shown in Figure 4The driving gear 2, driven gear 3, and tension wheel 9 mesh with the long chain 21 for transmission. The meshing of the gear chain transmits power. The anti-chain-jumping gear 7 is rotatably mounted on the output shaft 15 through the bearing 24. Its direction of rotation is opposite to that of the output shaft 15. When working, the anti-chain-jumping gear is close to the driving gear 2 to prevent the driving gear from jumping. The anti-chain-jumping gear 8 prevents the driven gear 3 from jumping. The figure shows the working principle, not the actual size. The actual size cannot be limited by the size shown in the figure. The intermediate shaft transmission gear 4 and transmission wheel 5 mesh with the short chain 22 for transmission. The anti-chain-jumping bearing 19 is the tension wheel of the short chain 22 and also serves the purpose of preventing chain jumping. The tension wheel 9 is provided with tension by the spring 12 through the inner support arm 11 and the outer support arm 13.

[0037] like Figure 3 , Figure 2 The tensioning wheel is installed at the end of the inner support arm 11, which is fixedly installed at the rear end of the support arm shaft 17. The outer support arm 13 is fixedly installed at the front end of the support arm shaft 17. The support arm shaft 17 is installed below the front wall of the housing 18 via a bearing 24. Its working principle is as follows: Figure 3 An input gear 1 is fixedly mounted at the front end of the input shaft 14 to receive power from the gearbox. This power is then transmitted via the input shaft 14 to the drive gear 2, which is fixedly mounted in the middle of the input shaft. The drive gear 2 transmits the power to the driven gear 3 via a long chain 21. Figure 4 As shown, the driven gear 3 is fixedly mounted on the front end of the intermediate shaft 16, and the intermediate shaft 16 is rotatably mounted on the adjusting handle via the bearing 24, as shown. Figure 3 Therefore, power can be transmitted from the intermediate shaft to the intermediate shaft drive gear 4 fixedly mounted at the rear end, and power can be transmitted from the intermediate shaft drive gear 4 to the output shaft drive gear 5 via the short strip 22, such as... Figure 6 , Figure 3 The output shaft drive gear 5 is fixedly installed in the middle of the output shaft 15, so the power is transmitted from the output shaft drive gear 5 to the output gear 6 fixedly installed at the rear end of the output shaft 15 via the output shaft 15. The spacer tube 7 is used to fix the distance between the parts.

[0038] The gear ratio of this adjusting device is 1:1, meaning it does not change the rotational speed of the output shaft and input shaft. The gear ratio of output gear 6 to input gear 1 is also 1:1. The function of this adjuster is to change the relative angle between input shaft 14 and output shaft 15, thereby changing...

[0039] The relative planting angles of the front and rear rows of seeders. The adjustment principle is: (see...) Figure 4 Figure 6 Figure 3 During adjustment, assuming the input shaft 14 remains stationary, the drive gear 2 will also remain stationary, as will the long chain 21. The lower end of the adjustment handle is rotatably mounted on the middle of the output shaft 15 via bearing 24. Figure 3, this time pull the adjustment handle 10 to the right, the passive gear 3 will move with the adjustment handle to the right, because the chain 21 with the driving gear 2 and passive gear 3 at the same time meshing, and because the anti-jump chain gear 8 and anti-jump chain gear 7, so there will be no jump chain phenomenon, passive gear 3 to achieve the right to move, only along the long chain 21 rolling can be achieved, anti-jump chain gear 8 through the bearing 24 and the small shaft is installed in the middle of the adjustment handle, passive gear 3 along the long chain 21 rolling will drive the intermediate shaft transmission gear 4 rotation. The intermediate shaft transmission gear 4 will drive the output shaft transmission gear 5 through the short chain 21, output shaft transmission gear 5 through the output shaft 15 drive output gear 6 together, so that the input gear does not rotate while the output gear can change the working angle relative to the input gear, this change angle can remain constant in normal work; to the left pull the adjustment handle the same principle, the adjustment range of plus or minus 30 degrees or so, the number is only for reference, can not be limited, the adjustment handle next to the angle scale, tensioner 9 by spring 12 through the outer arm 13, inner arm 11 provides tension, its role is to tension the long chain 21, when the adjustment handle is pulled to play a buffer role;

[0040] Example 2, this embodiment introduces a simple structure, the work is still reliable simple adjuster, such as Figure 9 , simple adjuster 78 by adjuster base 33, adjuster gear 34, locking screw 35, waist-shaped hole 36, fixed screw 37 is composed of, its working principle is: normal work when adjuster gear 34 through the waist-shaped hole 36 by locking screw 35 fastened on the adjuster base 33, adjuster base for the center of the hexagonal hole of the cylinder, and one end is provided with flange structure, flange opening flange waist-shaped hole 65, in order to cooperate with the waist-shaped hole 36 of adjuster gear, through the coaxial sliding way to complete the output relative to the input angle change, adjuster base 33 for the power input end of the simple adjuster 78, it can be through the center of the six square hole on the drive shaft 28, as shown in Figure 8 , adjuster gear 34 for the power output end of the simple adjuster 78, can output the changed relative angle of power. When adjusting, loosen the locking screw 35, adjuster gear 34 can be coaxial with adjuster base 33 sliding, also changed the output relative to the input angle, adjust the finished screw 35, new assembly will adjuster gear 34 sleeve adjuster base 34 of the cylindrical part, with locking screw 35 through the waist-shaped hole will be adjuster gear 34 and adjuster base 34 flange fastened with each other;

[0041] As shown in Figure 8For simple type adjuster 78 work in power transmission route map, gearbox power through gear 63, drive chain 32 to gear 31, gear 31 will power transmission to the first drive shaft 28, adjuster 78 through the adjuster base 33 six square hole set in the first drive shaft 28, and by fixed screw 37 fixed position, adjuster gear 24 through the drive chain 32 to the adjuster gear 34 of the secondary adjuster 25, adjuster gear 34 and secondary adjuster base 33 by locking screw 35 fastened together, so the power can be transmitted by the secondary adjuster gear 34 through the secondary adjuster base 33 to the second drive shaft 27, secondary adjuster 25 through the center of the six square hole set in the second drive shaft 27, the secondary adjuster has no angle scale, the remaining structure is exactly the same as the simple type angle adjuster, when the angle needs to be adjusted, first according to the actual measurement size to calculate the angle needs to be adjusted, the flange edge of the adjustment base 33 is marked with angle scale 38, loosen the locking screw 35, adjust the mark on the adjuster gear 34 to align the corresponding angle scale on the adjuster base 33 can complete the adjustment, after adjustment with locking screw 35 is tightened to fix, to ensure that the adjuster gear 34 and the adjustment base 33 between each other position fixed; It can also be tested after the second time fine tuning, the way of group drive can also be completed by electronic system; such as Figure 17 For semi-electronic type. Figure 18 As shown in full electronic type;

[0042] The above is only the preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A group driven planter comprising a seeding row unit, an adjuster, a seed meter, characterized in that: The seeder increases an adjuster, all seeders are divided into front and rear rows, the adjuster is used to adjust the seeding time of the front row relative to the rear row.

2. A group-driven planter according to claim 1, characterized in that: All seeders of the seeder are divided into front and rear rows, the seeder of the front row is driven by the second driving shaft, and the seeder of the rear row is driven by the first driving shaft.

3. A group-driven planter according to claim 2 wherein: The seeding time of the front row relative to the rear row can be adjusted by the adjuster.

4. A group-driven planter according to claim 1 wherein: The seeding row unit is composed of one front half and two rear halves.

5. A group-driven planter according to claim 4 wherein: The front half and the two rear halves of the seeding row unit are pivotally connected through parallel connecting rods and pivot shafts.

6. A group-driven planter according to claim 4 wherein: The two rear halves of the seeding row unit are movably hinged through their connecting shafts and the long holes at both ends of the swing shaft.

7. A group-driven planter according to claim 1 wherein: The adjuster is composed of the following elements: the driving gear (2) of the adjuster is fixedly installed on the input shaft (14), the driving gear (2) is engaged with the driven gear (3) and the tension pulley (9) to drive the long chain, the driven gear (3) is fixedly installed at the front end and the rear end of the intermediate shaft (16) respectively, the intermediate shaft (16) is rotatably installed on the adjusting handle (10) through the bearing, the intermediate shaft transmission gear (4) and the output shaft transmission gear (5) are engaged with the short chain (22) to drive, the anti-jump chain gear (7) is rotatably installed on the output shaft (15) through the bearing, and the output shaft transmission gear (5) is fixedly installed on the output shaft (15).

8. A group-driven planter according to claim 1 wherein: The adjuster base (33) of the simple adjuster (78) is coaxially installed with the adjuster gear (34).

9. A group-driven planter according to claim 1 wherein: The angle marked by the adjuster is the real rotation angle of the seeder.

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