CN202232109U - Elliptic gear-elliptic bevel gear wide-narrow row separately transplanting mechanism for high-speeding rice transplanting machine - Google Patents

Abstract

The utility model discloses an elliptical gear-elliptical bevel gear wide and narrow row splitting mechanism for a high-speed rice transplanter. The two shaft ends of the central shaft are fixed with left and right gear boxes with the same internal transmission structure. The central oval gear is fixed on the sprocket box through the tooth-embedded flange, and meshes with the middle oval gear to drive the gear box coaxially installed with the middle oval gear. The middle elliptical bevel gear rotates, and the middle elliptical bevel gear meshes with the planetary elliptical bevel gear. The planting arm part is fixed at one end of the planetary shaft protruding from the gearbox. The absolute movement of the planting arm is the non-uniform rotation of the planetary elliptical bevel gear relative to the space of the gearbox. The resultant motion of the circular motion of the gearbox relative to the central axis. The intermediate axis is parallel to the central axis, and the intersecting angle between the planetary axis and the intermediate axis is a small angle not equal to 90 degrees, so that after the seedling needle on the planting arm takes seedlings, its transplanting point is relative to the seedling picking point. The point is shifted to the left or right by the corresponding distance to realize the agronomic requirements of wide and narrow row transplanting.

Description

An elliptical gear-elliptical bevel gear wide and narrow row splitting mechanism for high-speed rice transplanter

technical field

The utility model relates to agricultural machinery, in particular to an elliptical gear-elliptical bevel gear wide and narrow row splitting mechanism for a high-speed rice transplanter.

Background technique

Wide and narrow row transplanting means that the row spacing of the rice transplanter is one wide and one narrow. This planting method uses the principle of crop marginal advantage to increase production. By adjusting the row spacing of transplanting, the ventilation and light transmittance between plants can be improved, and diseases can be reduced. , increase the leaf area index, prolong the life of the leaves, accelerate the accumulation of dry matter, so as to achieve the purpose of high quality, high yield, cost saving and efficiency increase.

The separate transplanting mechanism is a component on the rice transplanter that realizes taking seedlings, implanting them in the field, and planting the seedlings in rows. In the patent documents of the splitting mechanism published in the past, in the planetary gear transmission system in the gear box, the central shaft, the intermediate shaft and the planetary shaft are mostly arranged in parallel, and the needles on the planting arm move in a plane perpendicular to the central shaft and the ground. Under the premise that the seedling openings of the existing seedling boxes are equidistantly distributed, the trajectory of the seedling needles of the separate transplanting mechanism can only realize the equidistant planting of the seedlings, but cannot meet the requirements of planting the seedlings in wide and narrow rows.

Contents of the invention

The purpose of this utility model is to provide a high-speed rice transplanter elliptical gear-elliptical bevel gear wide and narrow row splitting mechanism, using elliptical gear and elliptical bevel gear to realize the requirements of wide and narrow row transplanting, by adjusting the axis of the planetary elliptical bevel gear and the middle elliptical bevel gear By optimizing the intersecting angle between the axes and optimizing the relevant mechanism parameters, it is possible to design a wide and narrow row insertion mechanism that meets the agronomic requirements of different models and different width and narrow rows.

In order to achieve the above object, the technical scheme that the utility model adopts is:

The power contained in the sprocket box of the utility model is transmitted to the center sprocket by the drive sprocket installed on the drive sprocket shaft through the chain, the center sprocket is fixedly connected to the center shaft, and the two shaft ends of the center shaft are respectively fixed with inner sprockets. The left and right gear boxes with the same transmission structure, the upper left, lower left, upper right and lower right planetary shafts extending out of the left and right gear boxes are respectively equipped with upper left, lower left, upper right and lower right planting arm parts with the same structure.

The left central elliptical gear in the left gear box is vacantly sleeved on one end of the central shaft, and is fixedly connected with one end of the sprocket box through the left tooth embedded flange. The upper left and lower left middle elliptical gears mesh with each other to drive the upper left and lower left middle elliptical bevel gears coaxially installed with the upper left and lower left middle elliptical gears to rotate respectively. The upper left and lower left planetary elliptical bevel gears mesh with each other, and the upper left and lower left planetary shafts protrude from the end of the left gearbox to fix the upper left and lower left planting arms. The absolute movement of the upper left and lower left planting arms is that the upper left and lower left planetary elliptical bevel gears are relative to the left gearbox The synthetic motion of the non-uniform rotation and the circular motion of the left gearbox around the central axis.

The right central elliptical gear in the right gear box is idling on the other end of the central shaft, and is fixedly connected with the other end of the sprocket box through the right tooth embedded flange. The upper right and lower right middle elliptical gears on the shaft mesh with each other to drive the upper right and lower right middle elliptical bevel gears coaxially installed with the upper right and lower right middle elliptical gears to rotate respectively. The upper right and lower right planetary elliptical bevel gears on the upper right and lower right planetary shafts are meshed, and the upper right and lower right planetary shafts protrude from one end of the right gearbox to fix the upper right and lower right planting arms, and the absolute movement of the upper right and lower right planting arms It is the composite motion of the non-uniform rotation of the right upper and lower right planetary elliptical bevel gears relative to the right gear box and the circular motion of the right gear box around the central axis.

The left and right central elliptical gears in the left and right gearboxes, the upper left, lower left, upper right, and lower right middle elliptical bevel gears and the upper left, lower left, upper right, and lower right planetary elliptical bevel gears are the three axes of the planetary system. The relative positions of the axes are arranged in a straight line.

角，根据相应的宽窄行行距农艺要求调节设计，使得左上、左下、右上、右下栽植臂上的秧针在取秧后，其插秧点相对于取秧点向左或向右偏移相应距离，从而实现所插秧苗行距宽窄分布。 The upper left, lower left, upper right, and lower right intermediate axes are parallel to the central axis, and the intersecting angles between the upper left, lower left, upper right, and lower right planetary axes and the upper left, lower left, upper right, and lower right intermediate axes are not equal to 90 degrees

Adjust the design according to the corresponding wide and narrow row spacing agronomic requirements, so that after the seedling needles on the upper left, lower left, upper right, and lower right planting arms are taken, the transplanting point will be offset to the left or right by the corresponding distance relative to the taking point , so as to realize the wide and narrow distribution of the row spacing of the transplanted rice seedlings.

The left and right central elliptical gears in the left and right gear boxes, the upper left, lower left, upper right, and lower right middle elliptical gears are all spur elliptical gears .

The left and right central elliptical gears, the upper left, lower left, upper right, and lower right middle elliptical gears are spur elliptical gears with identical geometric parameters; Bevel gears are elliptical bevel gears with identical geometric parameters.

The beneficial effect that the utility model has is:

，使得栽植臂秧针在取秧后，其插秧点相对于取秧点向左或向右偏移相应距离，使得所插秧苗行距成宽窄变化，实现宽窄行插秧的农艺要求，改变轴交角

的大小，该分插机构可以满足不同的宽窄行农艺要求。 The left and right gear boxes fixed on the central shaft are provided with left and right central elliptical gears, left and right middle elliptical gears, coaxially installed left and right middle elliptical gears, left and right middle elliptical bevel gears, mutually meshing The meshing left and right middle elliptical bevel gears, left and right planetary elliptical bevel gears, the axis intersection angle between the left and right planetary elliptical bevel gears and the left and right middle elliptical bevel gears is a small angle not equal to 90 degrees

, so that after the seedling needle of the planting arm takes the seedlings, the transplanting point is shifted to the left or right by the corresponding distance relative to the seedling picking point, so that the row spacing of the transplanted seedlings is changed into width and narrowness, and the agronomic requirements of wide and narrow row transplanting are realized, and the axis angle can be changed.

The size of the extension and insertion mechanism can meet the agronomic requirements of different width and narrow rows.

Description of drawings

Fig. 1 is a schematic diagram of the mechanism of the utility model.

角表示行星椭圆锥齿轮和中间椭圆锥齿轮之间的轴交角。 Fig. 2 is the structural diagram of transmission gear of the present utility model, among the figure

Angle represents the shaft intersection angle between the planetary elliptical bevel gear and the intermediate elliptical bevel gear.

Fig. 3 is a diagram of the internal structure of the planting arm of the present invention.

Fig. 4 is a view from the direction A of Fig. 2, showing the layout of the transmission gear of the present utility model.

Fig. 5 is a schematic diagram of the principle of the utility model installed on the same sprocket box with a pair of sub-transplanting mechanisms on the left and right in the forward direction of the rice transplanter. the

Fig. 6 is a schematic diagram of the principle that the distance between the pushing points of the seedling trajectory in the forward direction of the rice transplanter is less than the distance between the seedling doors formed by the two adjacent sub-planting mechanisms installed on the adjacent sprocket box of the utility model.

In the figure: 1. Central sprocket, 2. Central shaft, 3. Right toothed flange, 3'. Left toothed flange, 4. Right central elliptical gear, 4'. Left central elliptical gear, 5. Right gearbox, 5'. Left gearbox, 6. Lower right planetary elliptical bevel gear, 6'. Left lower planetary elliptical bevel gear, 7. Right lower planetary shaft, 7'. Left lower planetary shaft, 8. Right lower planting arm, 8'. Lower left planting arm, 9. Lower right middle elliptical bevel gear, 9'. Left lower middle elliptical bevel gear, 10. Right lower middle shaft, 10'. Left lower middle shaft, 11. Right lower middle elliptical gear, 11'. Lower left middle elliptical gear, 12. Upper right middle elliptical gear, 12'. Upper left middle elliptical gear, 13. Upper right middle shaft, 13' Upper left middle shaft, 14. Upper right middle elliptical bevel gear, 14'. Upper left middle middle elliptical bevel gear, 15 .Upper right planetary elliptical bevel gear, 15'.Left upper planetary elliptical bevel gear, 16.Right upper planetary shaft, 16'.Left upper planetary shaft, 17.Right upper planting arm, 17'.Left upper planting arm, 18.Sprocket, 19.Drive Sprocket, 20. driving sprocket shaft, 21. sprocket box, 22. cam, 23. shift fork, 24. pushing away seedling bar, 25. spring, 26. seedling door, 27. forward direction rice transplanting track, 28. ground.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

As shown in Fig. 1, Fig. 2 and Fig. 3, the power included in the sprocket box 21 of the utility model is transmitted to the center sprocket 1 through the chain 18 by the drive sprocket 19 installed on the drive sprocket shaft 20, and the center chain The wheel 1 is fixed on the central shaft 2, and the two shaft ends of the central shaft 2 are respectively fixed with left and right gear boxes 5' and 5 with the same internal transmission structure, and the upper left and lower left parts extending outside the left and right gear boxes 5' and 5 Upper left, lower left, upper right and lower right planting arm parts with the same structure are respectively housed on the planet shafts of the upper right, upper right and lower right.

The left center oval gear 4' in the left gear box 5' is vacantly sleeved on one end of the central shaft, and is fixedly connected with one end of the sprocket box 21 through the left tooth embedded flange 3', and the left center oval gear 4' is respectively connected to the fixed shaft. The upper left and lower left middle oval gears 12' and 11' mounted on the upper left and lower left middle shafts 13' and 10' are meshed to drive the upper left and lower left middle coaxially installed with the upper left and lower left middle oval gears 12' and 11' respectively. The elliptical bevel gears 14', 9' rotate, and the upper left and lower left middle elliptical bevel gears 14', 9' are respectively connected with the upper left and lower left planetary elliptical bevel gears 15', 6 fixed on the upper left and lower left planetary shafts 16', 7'. ’, the upper left and lower left planetary shafts 16’, 7’ protruding from one end of the left gearbox 5’ are fixed with upper left and lower planting arms 17’, 8’, the absolute movement of the upper left and lower planting arms 17’, 8’ is The synthetic motion of the non-uniform rotation of the upper left and lower left planetary elliptical bevel gears 15', 6' relative to the left gear box 5' and the circular motion of the left gear box 5' around the central axis 2.

The right center oval gear 4 in the right gear box 5 is vacantly sleeved on the other end of the central shaft, and is fixedly connected with the other end of the sprocket case 21 through the right tooth embedded flange 3, and the right center oval gear 4 is fixedly mounted on the The upper right and lower middle elliptical gears 12 and 11 on the upper right and lower middle shafts 13 and 10 are meshed to drive the upper right and lower right middle elliptical bevel gears 14 coaxially installed with the upper right and lower right middle elliptical gears 12 and 11 respectively . One end of axle 16,7 stretches out right gear box 5 is fixed with upper right, lower right planting arm 8,17, and the absolute movement of upper right, lower right planting arm 17,8 is upper right, lower right planetary elliptical bevel gear 15,6 relative right The synthetic motion of the non-uniform rotation of the gear box 5 and the circular motion of the right gear box 5 around the central axis 2 .

The left and right center oval gears 4', 4 in the left and right gear boxes 5', 5, the upper left, lower left, upper right, lower right middle elliptical bevel gears 14', 9', 14, 9 and upper left, lower left , upper right and lower right planetary elliptical bevel gears 15', 6', 15, and 6. The relative positions of the three-axis axis centers of the three-axis gear planetary system are arranged in a straight line. In Fig. 4, only the relative positions of the three-axis axes of the right transmission case are arranged in a straight line.

角，根据相应的宽窄行行距农艺要求调节设计，使得左上、左下、右上、右下栽植臂17＇、8＇、17、8上的秧针在取秧后，其插秧点相对于取秧点向左或向右偏移相应距离，从而实现所插秧苗行距宽窄分布。图2中仅表示右传动箱的轴交角。 The upper left, lower left, upper right, lower right intermediate shafts 13', 10', 13, 10 are parallel to the central axis 2, and the upper left, lower left, upper right, lower right planetary shafts 16', 7', 16, 7 are parallel to the upper left, The axis intersection angles of the lower left, upper right, and lower right intermediate axes 13', 10', 13, and 10 are not equal to 90 degrees

Adjust the design according to the corresponding wide and narrow row spacing agronomic requirements, so that the seedling needles on the upper left, lower left, upper right, and lower right planting arms 17', 8', 17, and 8 after the seedlings are taken, the transplanting point is relative to the seedling picking point Offset the corresponding distance to the left or right, so as to realize the wide and narrow distribution of the row spacing of the transplanted rice seedlings. Only represent the shaft intersection angle of the right transmission box in Fig. 2.

The left and right central oval gears 4', 4 in the left and right gearboxes 5', 5, and the upper left, lower left, upper right, and lower right middle oval gears 12', 11', 12, and 11 are all spur elliptical gears .

The left and right central elliptical gears 4, 4', upper left, lower left, upper right, lower right middle elliptical gears 12', 11', 12, 11 are spur elliptical gears with identical geometric parameters; upper left, lower left, upper right , Lower right middle elliptical bevel gear 14 ', 9 '14, 9, left and right planetary elliptical bevel gear 15 ', 6 ', 15, 6 are elliptical bevel gears with identical gear geometric parameters.

，也即右行星椭圆锥齿轮6、15与右中间椭圆锥齿轮9、14大端面之间的轴交角为不等于90度的一个小角

，本实用新型也正是利用这个特点设计分插机构的空间插秧轨迹。通过调节右行星椭圆锥齿轮6、15和右中间椭圆锥齿轮9、14之间的轴交角可以形成不同的宽窄行秧针尖点运动轨迹，如图5所示，为安装在同一链轮箱上左右一对分插机构形成的轨迹27，取秧点间的距离小于插秧点间的距离，取秧点即在秧门26处，插秧点即插秧轨迹27与地面28的交点；图6所示为安装在相邻链轮箱上相邻的两个分插机构形成的轨迹27，取秧点距离大于插秧点距离。 As shown in Figure 2 and Figure 4, take the gears in the right gearbox 5 as an example to illustrate the left and right planetary elliptical bevel gears 6, 6', 15, 15' and the left and right middle elliptical bevel gears 9, 9', 14 , 14', the shaft angle between the right planetary shaft 7, 16 and the right intermediate shaft 10, 13 is not equal to the shaft angle of 90 degrees between common bevel gears, but a small angle

, that is, the axis intersection angle between the right planetary elliptical bevel gear 6, 15 and the large end face of the right middle elliptical bevel gear 9, 14 is a small angle not equal to 90 degrees

, the utility model just utilizes this feature to design the space transplanting track of the splitting mechanism. By adjusting the shaft angle between the right planetary elliptical bevel gear 6,15 and the right middle elliptical bevel gear 9,14, different width and narrow row seedling needle point motion tracks can be formed, as shown in Figure 5, for being installed on the same sprocket box The track 27 formed by a pair of sub-transplanting mechanisms on the left and right, the distance between the seedling-taking points is less than the distance between the seedling-planting points, the seedling-taking point is at the seedling gate 26, and the seedling-planting point is the intersection of the seedling-planting track 27 and the ground 28; as shown in Figure 6 For the track 27 formed by two adjacent sub-planting mechanisms installed on the adjacent sprocket box, the distance between the seedling-taking point is greater than the distance between the seedling-planting point.

The working principle of the utility model is:

。当左、右行星椭圆锥齿轮6、6＇，15、15＇随左、右行星轴7、7＇，16、16＇相对左、右齿轮箱5、5＇转动时，带动左、右栽植臂8、8＇，17、17＇转动，由于左、右行星椭圆锥齿轮6、6＇，15、15＇与左、右中间椭圆锥齿轮9、9＇，14、14＇之间的轴交角并不等于90度，因此左、右栽植臂8、8＇，17、17＇的转动平面与左、右齿轮箱5、5＇的转动平面不是平行平面，成

的夹角，这样左、右栽植臂8、8＇，17、17＇上的秧针在取秧后，其插秧点相对于取秧点向左或向右偏移相应距离。左、右栽植臂8、8＇，17、17＇的转动使左、右拨叉23围绕固定的左、右凸轮22（固定在左、右齿轮箱5、5＇上）摆动，在取秧前左、右拨叉23经过左、右凸轮22的上升段而抬起，将左、右推秧杆24提高至最高点，同时压缩推秧弹簧25；在取秧到插秧前，左、右拨叉23处于左、右凸轮22的最高位置保持段；当秧爪到达插秧位置，左、右拨叉23转至左、右凸轮22缺口，推秧弹簧25回位推动推秧杆24向下快速运动，将秧苗推入土中。从而顺序完成了水稻秧苗的取秧、插秧动作，实现水稻秧苗的机械化宽窄行移栽。 The power of the splitting mechanism is transmitted to the central sprocket 1 by the driving sprocket 19 in the sprocket box 21 of the rice transplanter through the chain 18, which drives the central shaft 2 to rotate, and the central shaft 2 drives the left and right gear boxes 5, 5' to rotate, and the left 1. In the right gear box 5, 5', left and right central oval gears 4, 4' and left and right middle oval gears 11, 11', 12, 12' fixed on the central shaft 2 and sprocket box 21 are empty sleeves Mesh, the left and right middle elliptical bevel gears 9, 9', 14, 14' are coaxially installed with the left and right middle elliptical gears 11, 11', 12, 12', and are coaxially installed with the left and right planetary elliptical bevel gears 6, 6 ’, 15, 5’mesh, the shaft angle between the left and right planetary elliptical bevel gears 6, 6’, 15, 15’ and the left and right middle elliptical bevel gears 9, 9’, 14, 14’ is not equal to 90 a small angle in degrees

. When the left and right planetary elliptical bevel gears 6, 6', 15, 15' rotate with the left and right planetary shafts 7, 7', 16, 16' relative to the left and right gear boxes 5, 5', it drives the left and right planting Arms 8, 8', 17, 17' rotate, due to the axis between the left and right planetary elliptical bevel gears 6, 6', 15, 15' and the left and right middle elliptical bevel gears 9, 9', 14, 14' The angle of intersection is not equal to 90 degrees, so the rotation planes of the left and right planting arms 8, 8', 17, 17' and the rotation planes of the left and right gear boxes 5, 5' are not parallel planes, forming

Angle, so that the left and right planting arms 8,8 ', the seedling needles on 17,17' are after the seedlings are taken, and the transplanting point is offset to the left or right by the corresponding distance relative to the seedling picking point. The rotation of left and right planting arms 8, 8', 17, 17' makes left and right shift forks 23 swing around fixed left and right cams 22 (fixed on left and right gear boxes 5, 5'). The front left and right shift forks 23 are lifted through the rising section of the left and right cams 22, and the left and right pusher levers 24 are raised to the highest point, and the pusher springs 25 are compressed at the same time; The shift fork 23 is in the highest position holding section of the left and right cams 22; when the seedling claws reach the rice planting position, the left and right shift forks 23 turn to the gaps of the left and right cams 22, and the seedling pushing spring 25 returns to push the seedling pushing lever 24 downward With quick movements, push the seedlings into the soil. Thereby the actions of taking seedlings and transplanting rice seedlings are completed in sequence, and the mechanized wide and narrow row transplanting of rice seedlings is realized.

The above-mentioned specific embodiments are used to explain the utility model, rather than to limit the utility model. Within the spirit of the utility model and the scope of protection of the claims, any modifications and changes made to the utility model fall into the scope of the utility model. scope of protection.

Claims (5)

1. A high-speed rice transplanter elliptical gear - elliptical bevel gear wide and narrow row splitting mechanism, the power included in the sprocket box (21) is driven by the driving sprocket (19) installed on the driving sprocket shaft (20) through the chain ( 18) Transfer to the central sprocket (1), the central sprocket (1) is fixed on the central shaft (2), and the two shaft ends of the central shaft (2) are respectively fixed with left and right gearboxes with the same internal transmission structure ( 5', 5), the upper left, lower left, upper right and lower right planet shafts extending out of the left and right gear boxes (5', 5) are respectively equipped with upper left, lower left, upper right and lower right planting arm parts with the same structure ; characterized by: The left center oval gear (4') in the left gear box (5') is vacantly sleeved on one end of the central shaft, and fixedly connected with one end of the sprocket box (21) through the left tooth embedded flange (3'). The central elliptical gear (4') meshes with the upper left and lower left middle elliptical gears (12', 11') mounted on the upper left and lower middle shafts (13', 10') respectively, and drives the upper left and lower left middle elliptical gears respectively. The upper left and lower left middle elliptical bevel gears (14', 9') installed coaxially with the gears (12', 11') rotate, and the upper left and lower left middle elliptical bevel gears (14', 9') are fixedly mounted on the upper left and lower left respectively. The upper left and lower left planetary elliptical bevel gears (15', 6') on the planetary shafts (16', 7') mesh with each other, and the upper left and lower left planetary shafts (16', 7') extend out of the left gearbox (5'). One end is fixed with the left upper and left lower planting arms (17', 8'), the absolute movement of the left upper and left lower planting arms (17', 8') is the left upper and left planetary elliptical bevel gear (15', 6') relative to the left gearbox The synthetic motion of the non-uniform rotation of (5') and the circular motion of the left gearbox (5') around the central axis (2); The right center oval gear (4) in the right gear box (5) is vacantly sleeved on the other end of the central shaft, and is fixedly connected with the other end of the sprocket box (21) through the right tooth embedded flange (3), and the right center The oval gear (4) meshes with the upper right and lower middle elliptical gears (12, 11) fixed on the upper right and lower middle shafts (13, 10) respectively, and drives the upper right and lower middle elliptical gears (12) respectively. , 11) The coaxially installed upper right and lower right middle elliptical bevel gears (14, 9) rotate, and the upper right and lower right middle elliptical bevel gears (14, 9) are fixedly mounted on the upper right and lower right planetary shafts (16, 7) respectively. ) on the upper right and lower right planetary elliptical bevel gears (15, 6) are meshed, and the upper right and lower right planetary shafts (16, 7) protrude from one end of the right gear box (5) and are fixed with the upper right and lower right planting arms (8 , 17), the absolute motion of the upper right and lower right planting arms (17, 8) is the non-uniform rotation of the upper right and lower right planetary elliptical bevel gears (15, 6) relative to the right gear box (5) and the right gear box (5) The resultant motion of circular motion around a central axis (2). 2. A high-speed rice transplanter elliptical gear-elliptical bevel gear wide and narrow row splitting mechanism according to claim 1, characterized in that: the left and right centers in the left and right gear boxes (5', 5) Oval gears (4', 4), upper left, lower left, upper right, lower right middle elliptical bevel gears (14', 9', 14, 9) and upper left, lower left, upper right, lower right planetary elliptical bevel gears (15', 6 ', 15, 6) The relative positions of the three-axis axes of the three-axis gear planetary system are arranged in a straight line. 3. A high-speed rice transplanter elliptical gear-elliptical bevel gear width and narrow row splitting mechanism according to claim 1, characterized in that: the upper left, lower left, upper right, lower right intermediate shafts (13', 10', 13, 10) are parallel to the central axis (2), the upper left, lower left, upper right, and lower right planetary shafts (16', 7', 16, 7) and the upper left, lower left, upper right, and lower right intermediate shafts (13', 10' , 13, 10) the axis angle is not equal to 90 degrees

Adjust the design according to the corresponding wide and narrow row spacing agronomic requirements, so that after the seedling needles on the upper left, lower left, upper right, and lower right planting arms (17', 8', 17, 8) take seedlings, the transplanting point is relative to the picking point. The seedling point is shifted to the left or right by the corresponding distance, so as to realize the wide and narrow row spacing distribution of the transplanted seedlings. 4. A high-speed rice transplanter elliptical gear-elliptical bevel gear wide and narrow row splitting mechanism according to claim 1, characterized in that: the left and right centers in the left and right gear boxes (5', 5) Elliptical gears (4 ', 4), upper left, lower left, upper right, lower right intermediate elliptical gears (12 ', 11 ', 12, 11) are all spur elliptical gears . 5. A high-speed rice transplanter elliptical gear-elliptical bevel gear width and narrow row splitting mechanism according to claim 1, characterized in that: the left and right central elliptical gears (4, 4'), the upper left, lower left, The upper right and lower right middle elliptical gears (12', 11', 12, 11) are spur elliptical gears with identical geometric parameters; ), the left and right planetary elliptical bevel gears (15', 6', 15, 6) are elliptical bevel gears with identical gear geometric parameters.

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