CN215073872U - Seedling carrying platform for transplanter and transplanter applying seedling carrying platform - Google Patents

Abstract

The utility model relates to a transplanter with using its transplanter of seedling stage is used to transplanter, include: the seedling carrying plate is provided with at least one seedling placing area, a seedling taking area is arranged in front of the seedling placing area and is transversely divided into a first seedling taking area and a second seedling taking area, the first seedling taking area is provided with a first seedling taking position, and the second seedling taking area is provided with a second seedling taking position; at least, a conveyor belt component is arranged between the first seedling taking position and the second seedling taking position and comprises a conveyor belt and a transmission mechanism, the conveyor belt is arranged along the transverse extension of the seedling carrying plate and can be circularly and reciprocally rotated on the transmission mechanism, and therefore the seedling blanket transferred to the conveyor belt from the seedling carrying plate is driven to be transversely transferred. The seedling blanket does not need to be divided, so that the damage to the roots and stems of the seedlings is reduced; the conveying belt component can drive the seedling blocks separated in the last row to move left and right for the transplanting arms to fetch seedlings, and the problem that the seedlings are stacked to cause abnormal transplanting due to the fact that the seedlings are not completely fetched in the last row of seedlings of each seedling blanket is solved.

Description

Seedling carrying platform for transplanter and transplanter applying seedling carrying platform

Technical Field

The utility model relates to a transplanter technical field especially relates to a transplanter is with carrying seedling platform and using its transplanter.

Background

The wide-narrow row rice transplanting method is widely applied at present, and is a rice high-yield cultivation technology for cultivating rice at intervals of narrow row spacing and wide row spacing. The cultivation mode can ensure that the number of holes in a unit area is reasonable, and has the advantages of reasonable plant population distribution, good ventilation and light transmittance, high photosynthesis rate and the like, so that the yield per unit is high, and the cultivation mode is one of the cultivation modes frequently selected by high yield and high customs.

In order to meet the requirement of the agricultural technology, the Chinese utility model with application number CN201720078624.4 (No. CN206564811U) discloses a transplanting mechanism of a bevel gear transmission wide and narrow row transplanter, which is characterized in that a set of staggered shaft bevel gear transmission is respectively arranged in a left gear box and a right gear box with the same structure, a planet wheel and a middle inclined gear are a pair of meshed staggered shaft bevel gears, so that a planet shaft and a gear box are inclined, and a planting arm fixedly connected with the planet shaft is inclined with the gear box; the moving plane of the seedling needle of the planting arm is not parallel to the rotating plane of the gear box any more, but does spatial movement to form a spatial transplanting working track; the seedling needle moves from the seedling taking position to the seedling pushing position, the tip point of the seedling needle generates transverse displacement, namely the displacement vertical to the advancing direction of the machine, so that the seedling planting point moves transversely left or right relative to the seedling taking position, and the seedling planting row spacing forms wide-narrow row alternate distribution required by agriculture on the premise of the equidistant distribution of the existing seedling door. The structure is suitable for the seedling platform of the existing seedling planting machine for planting seedlings at equal intervals, and wide-narrow row seedling planting can be realized, but if the transverse displacement generated by the sharp point of the seedling needle is overlarge, namely the inclination angle of the seedling needle is overlarge, the damage of the seedling needle to the seedling is overlarge during seedling taking; if the transverse displacement generated by the seedling needle point is too small, namely the inclination angle of the seedling needle is too small, the row spacing change is very small, and the agricultural purpose of wide-narrow row transplanting can not be achieved.

If again, the utility model discloses a chinese utility model patent of application number CN201720078624.4 (grant bulletin number does) < a single blanket seedling double transplanting transplanter ", including automobile body, seedling platform and transplanting mechanism, the seedling platform include a plurality of seedling board, every seedling board correspondence is equipped with two seedling positions of getting, every seedling position correspondence of getting is equipped with a gyration case, every seedling board rear side be equipped with a blanket seedling decollator, the lower extreme middle part of seedling board is equipped with blanket seedling division board, when the seedling platform is in the rightmost side, two seedling positions of getting that the seedling board corresponds are in the right side of the foremost of seedling board and blanket seedling division board respectively. In the process of transplanting rice seedlings, the driving mechanism is started, the cutter head is rotated, the blades partially expose the seedlings in the rotating process to cut blanket seedlings, and in the process of continuously moving the blanket seedlings downwards, the blanket seedling separation plates separate the cut blanket seedlings and achieve the effect of restraining the seedlings on the two sides of the blanket seedlings. In the process that the cut blanket seedlings move downwards, the soil on the two sides of the blanket seedlings can be mutually bonded, and the cutting edges on the blanket seedling separation plates have a further cutting effect on the blanket seedlings.

However, the above-mentioned rice transplanter (seedling carrying platform) through cutting, separation mode still has certain not enough in the in-service use, at first, adopt the cutting mode to separate the seedling blanket, not only cause the injury of seedling root easily, and, because the seedling blanket is difficult to avoid to have the uneven problem of thickness, and the blade height of blanket seedling decollator is then certain, under the relatively lower condition of blade height, cause the seedling blanket to separate incompletely easily, can not cut the seedling blanket completely promptly, under the condition that the blade height exceeds the root thickness of seedling blanket, cause the seedling stem damage of seedling again easily. Secondly, if the seedling blanket placed in the early stage has a deviation problem (can not be placed correctly), the left and right distribution of the seedling blanket after cutting is easy to cause abnormity of seedling shortage, seedling clamping, seedling stacking and the like, and normal seedling transplanting is influenced. Furthermore, the left and right parts of the cut front part of the seedling blanket are in a separated state and are positioned on a guide rail (the guide rail is fixed) at the front part of the seedling carrying platform, and the rear part of the seedling blanket is not cut and is adhered with the front part, so when the rear part of the seedling blanket moves left and right (driven by a transverse conveying mechanism of the seedling carrying platform), the front part of the seedling blanket after being separated is driven to move so as to be sequentially taken by a transplanting mechanism, and the aim of single-blanket seedling double transplanting is realized In case of abnormal seedling transplanting, the last row of seedlings in the seedling blanket cannot be taken out completely.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem that to prior art's current situation, provide a be difficult for causing the rice seedling machine of transplanting rice seedlings damage to carry seedling platform.

The utility model aims to solve the second technical problem to provide a seedling carrying platform for a transplanter, which can avoid the occurrence of two adjacent lines of seedling shortage problems in the transplanting process, aiming at the current situation of the prior art.

The third technical problem to be solved by the utility model is to provide a seedling carrying platform for a rice transplanter which can avoid the problem that the last row of seedlings of the seedling blanket can not be taken by the whole rice seedlings and the abnormal problem of rice transplanting occurs.

The fourth technical problem to be solved of the utility model is to provide a transplanter of the seedling carrying platform for the transplanter, which is applied to the current situation of the prior art.

The utility model provides a technical scheme that any technical problem adopted in first technical problem, second technical problem, the third technical problem does: a seedling carrying platform for a rice transplanter comprises:

the seedling carrying plate is provided with at least one seedling placing area, the seedling placing area is used for placing a seedling blanket, a seedling taking area is arranged in front of each seedling placing area, the seedling taking area is transversely divided into at least two sub seedling taking areas, the two adjacent sub seedling taking areas are a first seedling taking area and a second seedling taking area respectively, the first seedling taking area is provided with a first seedling taking position, and the second seedling taking area is provided with a second seedling taking position;

the seedling longitudinal conveying device is arranged on the seedling carrying plate and is used for conveying the seedlings placed on the seedling carrying plate from back to front;

the seedling transverse conveying device acts on the seedling carrying plate and drives the seedling carrying plate to transversely reciprocate;

and a conveyor belt component is arranged between the first seedling taking position and the second seedling taking position and comprises a conveyor belt and a transmission mechanism, the conveyor belt is arranged along the transverse extension of the seedling carrying plate, and the conveyor belt can be circularly and repeatedly arranged on the transmission mechanism in a rotating way, so that a seedling blanket transferred from the seedling carrying plate to the conveyor belt is driven to be transversely transferred to the first seedling taking position or the second seedling taking position.

In order to reduce the number of driving devices and reduce cost, the transmission mechanism is linked with the seedling transverse conveying device, so that the seedling carrying plate and the conveying belt move synchronously. Of course, it is conceivable that the conveyor belt can be driven by a drive device separate from the seedling transverse conveyor, for example, a motor can be connected to the drive mechanism of the conveyor belt assembly.

The transmission mechanism can adopt one or any combination of various prior arts such as a gear transmission structure, a worm gear transmission structure and the like, but for better matching with the seedling transverse conveying device and simplifying the transmission mechanism, the transmission mechanism comprises:

the rack is arranged on the seedling carrying plate, transversely extends along the seedling carrying plate and can move along with the seedling carrying plate;

the power input end of the gear box is in transmission connection with the rack;

and two rolling shafts are arranged at intervals and used for winding the conveyor belt, and one of the rolling shafts is in transmission connection with the power output end of the gear box.

As an improvement, the gear box includes the box and is equipped with gear assembly in the box, the gear assembly includes first transmission shaft, straight-toothed gear, first bevel gear and second bevel gear, straight-toothed gear coaxial coupling be in the first end of first transmission shaft, and with rack toothing, first bevel gear coaxial coupling be in the second end of first transmission shaft, second bevel gear coaxial coupling is in one of them on the roller bearing, first bevel gear with second bevel gear meshing.

As a preferred embodiment, a guide rail which is arranged along the transverse extension of the seedling carrying plate and is used for receiving seedlings transferred from the seedling carrying plate is further arranged on the front side of the seedling carrying plate, the seedling carrying plate is transversely and reciprocally arranged on the guide rail, an installation gap is arranged on the guide rail corresponding to each seedling placing area, each seedling taking area is transversely divided into two sub seedling taking areas, a conveying belt assembly is arranged in each installation gap, gaps are respectively arranged between the left side and the right side of the conveying belt assembly and the guide rail, the two gaps respectively form a first seedling taking port and a second seedling taking port for taking seedlings by two opposite transplanting arms on a seedling transplanting machine, the first seedling taking port is the first seedling taking position, and the second seedling taking port is the second seedling taking position; or,

the front side of the seedling carrying plate is also provided with a guide rail which is arranged along the transverse extension of the seedling carrying plate and is used for carrying seedlings transferred from the seedling carrying plate, the seedling carrying plate is transversely and reciprocally arranged on the guide rail, the guide rail is provided with mounting notches corresponding to each seedling placing area, each seedling taking area is transversely divided into at least three seedling taking areas, each mounting notch is internally provided with at least two conveying belt assemblies, each conveying belt assembly is sequentially arranged at intervals along the transverse direction of the seedling carrying plate and is conveyed towards the same direction, a gap is arranged between any two adjacent conveying belt assemblies, a gap is also arranged between the left side of the conveying belt assembly and the guide rail and between the right side of the conveying belt assembly and the guide rail, and any two adjacent gaps respectively form a first seedling taking port and a second seedling taking port for two opposite seedling transplanting arms on a seedling transplanting machine to take seedlings, the first seedling taking port is the first seedling taking position, and the second seedling taking port is the second seedling taking position.

In order to transfer the seedlings on the guide rail to the seedling taking port, two sides of the front part of the seedling carrying plate are respectively provided with a baffle extending forwards, and the two baffles are used for pushing the seedlings transferred to the guide rail towards the first seedling taking port or the second seedling taking port. When the seedlings in the front area of the seedling blanket or the seedlings in the last row left in the seedling transplanting process are transferred on the guide rail, the baffle plate can be abutted against one side of the seedling block, and when the seedling carrying plate moves transversely, the baffle plate can be driven to move together, so that the seedlings transferred to the guide rail move together with the seedling carrying plate and are pushed to the first seedling taking opening or the second seedling taking opening.

As another preferred embodiment, each seedling taking area is provided with two sub-seedling taking areas, each seedling taking area is provided with three conveyor belt assemblies, the three conveyor belt assemblies are sequentially arranged at intervals along the transverse direction of the seedling carrying plate and are conveyed towards the same direction, a first seedling taking port is defined between every two adjacent conveyor belt assemblies corresponding to the first seedling taking area, a second seedling taking port is defined between every two adjacent conveyor belt assemblies corresponding to the second seedling taking area, the first seedling taking port forms the first seedling taking position, and the second seedling taking port forms the second seedling taking position.

The utility model provides a technical scheme that fourth problem adopted does: a transplanter applying the seedling carrying platform for the transplanter comprises a transplanter body and is characterized in that: the seedling carrying platform is arranged on the transplanter body and inclines downwards from back to front.

In order to effectively avoid the problem that a transplanter body (a floating boat) inclines and keep the transplanter body in a horizontal state without being interfered by unevenness of a hard bottom layer of a paddy field, and further ensure the consistent transplanting depth, the transplanter also comprises a front wheel, a rear frame and a rear wheel, wherein the transplanter body is provided with a transversely extending support shaft, the center of the front wheel is deviated backwards for a certain distance relative to the support shaft and can swing up and down by taking the support shaft as a rotation center, the rear wheel is arranged on the rear frame and is used for supporting the rear frame, the front part of the rear frame is rotatably connected to the transplanter body in a mode of swinging up and down relative to the transplanter body, and the swinging rotation axis of the rear frame relative to the transplanter body is coaxial with the support shaft.

As an improvement, the transplanter comprises a wheel driving mechanism arranged on the transplanter body, wherein the wheel driving mechanism comprises a power main body, a second transmission shaft extending transversely and two transmission boxes, the power output end of the power main body is connected with the second transmission shaft, the second transmission shaft is positioned in the supporting shaft, the power output end of the transmission box is in transmission connection with the front wheel, the power input end of the transmission box is in transmission connection with the second transmission shaft and can swing up and down relative to the supporting shaft, shaft sleeves capable of rotating relative to the supporting shaft are arranged at two ends of the supporting shaft, correspondingly, the rear frame is provided with two connecting arms extending forwards, and each connecting arm is connected with the supporting shaft through the corresponding shaft sleeve.

Compared with the prior art, the utility model has the advantages that: the utility model provides a seedling carrying platform has saved the blanket seedling decollator among the prior art and has cut apart the structure of board by blanket seedling, need not to cut apart the seedling blanket, has reduced the root to the seedling blanket and the harm of stem portion. On the other hand, a conveyor belt component is arranged in the first seedling taking area of the seedling carrying plate, the conveyor belt of the conveyor belt component is arranged along the transverse extension of the seedling carrying plate and is used for receiving the seedlings transferred from the seedling carrying plate, in the process of taking seedlings from the seedling blanket initially, the conveyor belt can synchronously move to drive the seedlings at the front part of the seedling blanket to transversely move along the conveyor belt and move along with the process of transplanting the seedlings, when the seedling blanket becomes smaller gradually until the last row of seedlings is left, after the transplanting arm takes the seedlings from the middle part of the seedling block of the last row, the seedling block can be separated into a left part and a right part, the part of the seedlings positioned in front of the transverse conveying direction is just positioned on the conveying belt, the conveying belt can drive the part of the seedling blocks to move leftwards or rightwards to the corresponding seedling taking positions, the seedling picking device is used for picking seedlings by the transplanting arm, and the problem of abnormal transplanting caused by the accumulation of the seedlings because the last row of seedlings of each seedling blanket is not picked completely is solved.

Drawings

Fig. 1 is a schematic perspective view of a seedling stage according to an embodiment of the present invention (showing an inserting arm);

FIG. 2 is a front view of a seedling platform (shown with an inserting arm) according to an embodiment of the present invention;

fig. 3 is a front view of a conveyor belt assembly in an embodiment of the invention;

figure 4 is a top view of a conveyor belt assembly in an embodiment of the invention;

FIG. 5 is a cross-sectional view taken at A-A of FIG. 4;

FIG. 6 is a schematic perspective view of a rice transplanter according to an embodiment of the present invention;

FIG. 7 is a perspective view of another perspective view of the rice transplanter in the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the disclosed embodiments of the invention may be oriented in different directions and the directional terms are intended to be illustrative and should not be construed as limiting, such as "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 to 7, a rice transplanter generally includes a rice transplanter body 10, a seedling stage 30, a rice transplanting device, and a traveling wheel device. The walking wheel device is used for driving the rice transplanter to integrally move. The seedling stage 30 is provided on the rice transplanter body 10 and is inclined downward from the rear of the rice transplanter body 10 to the front of the rice transplanter body 10, as shown in detail in fig. 6. The seedling stage 30 is provided with a seedling transfer device, which generally comprises a longitudinal seedling conveying device (not shown) for conveying the seedlings placed on the seedling carrying plate 31 from back to front (where "back" from back to front "refers to a high area of the seedling carrying plate 31 and" front "refers to a low area of the seedling carrying plate 31), and a transverse seedling conveying device (not shown) for driving the seedling carrying plate 31 to move transversely and reciprocally so as to allow the seedling transplanting device in front of the seedling carrying stage to take the seedlings. The structure and the working principle of the rice transplanter are the prior art and are not described herein.

Referring to fig. 1 and 2, the seedling carrying platform 30 for the rice transplanter of the present embodiment includes a seedling carrying plate 31, specifically, the seedling carrying plate 31 has at least one seedling placing area 310 thereon, specifically, in the present embodiment, there are a plurality of seedling placing areas 310, and the plurality of seedling placing areas 310 are distributed along a transverse direction at intervals and extend along a longitudinal direction, that is, the seedling placing areas 310 are strip-shaped, and a seedling blanket can be placed in the seedling placing areas 310 and is driven by the seedling longitudinal conveying device to be conveyed forward. Referring to fig. 1, 4 seedling placing areas 310 are shown, and adjacent two seedling placing areas 310 are spaced apart by a certain interval, thereby forming a wide row spacing of wide and narrow rows of seedlings after the completion of transplanting. A seedling taking area is arranged in front of each seedling placing area 310, the seedling taking area is divided into at least two sub seedling taking areas along the transverse direction, and the two adjacent sub seedling taking areas are a first seedling taking area 311 and a second seedling taking area 312 respectively. With continued reference to fig. 2, a schematic diagram of the seedling carrying plate 31 during moving from right to left is shown, wherein in the drawing, the first seedling taking area 311 is located at the left side, the second seedling taking area 312 is located at the right side, the first seedling taking area 311 corresponds to the transplanting arm 60 located at the left side, and the second seedling taking area 312 corresponds to the transplanting arm 60 located at the right side.

Corresponding to the 4 seedling placing areas 310, there are 4 sets of the transplanting arms of the transplanting device, each set has two transplanting arms, and the two transplanting arms are oppositely arranged and spaced at a certain distance. The two transplanting arms correspond to the first seedling taking area 311 and the second seedling taking area 312 respectively. Specifically, taking the state shown in fig. 2 (moving from right to left, see the direction of the solid arrow in fig. 2) as an example, the left transplanting arm of one group of transplanting arms fetches the seedlings from the leftmost side of the seedling blanket, and the right transplanting arm fetches the seedlings from the middle of the seedling blanket. Similarly, during the reverse movement of the seedling stage 31 (i.e., from left to right, see the direction of the dotted arrow in fig. 2), the right arm of the set of transplanting arms fetches the seedlings from the rightmost side of the seedling blanket, and the left arm fetches the seedlings from the middle of the seedling blanket.

Referring to fig. 2, in the embodiment, the first seedling taking area 311 has a first seedling taking position, the second seedling taking area 312 has a second seedling taking position, and a conveyor belt assembly 40 is disposed between the first seedling taking position and the second seedling taking position. The conveyor belt assembly 40 comprises a conveyor belt 41 and a transmission mechanism 42, wherein the conveyor belt 41 is arranged along the transverse extension of the seedling carrying plate 31, and the conveyor belt 41 can be circularly and reciprocally rotated on the transmission mechanism 42, so that the seedling blanket transferred from the seedling carrying plate 31 to the conveyor belt 41 is driven to be transversely conveyed.

In a preferred embodiment, a guide rail 50 arranged along the transverse extension of the seedling carrying plate 31 is further arranged on the front side of the seedling carrying plate 31, and the seedling carrying plate 31 is arranged on the guide rail 50 in a reciprocating sliding manner. Each seedling placing area 310 on the guide rail 50 is provided with a mounting notch 500 corresponding to each seedling taking area, and each seedling taking area is divided into two sub seedling taking areas along the transverse direction. Specifically, each installation notch 500 is provided with a conveyor belt assembly 40, and gaps are formed between the left side and the right side of the conveyor belt assembly 40 and the guide rail 50, and the two gaps respectively form a first seedling taking port 51 and a second seedling taking port 52 for taking seedlings by two opposite transplanting arms 60 on the seedling transplanting machine, wherein the first seedling taking port 51 forms the first seedling taking position, and the second seedling taking port 52 forms the second seedling taking position. In this embodiment, the conveyor belt 41 is substantially at the same level as the two guide rails 50, thereby together forming a "receiving member" for receiving the seedlings transferred from the seedling carrying plate 31, as shown in detail in fig. 1.

Referring to fig. 1, in the present embodiment, the seedling carrying plate 31 further has two forward extending baffles 424 on both sides of the front portion, and the two baffles 424 extend to positions corresponding to the front guide rail 50, wherein one baffle 424 is located at a left side position of the first seedling taking area 311, and the other baffle 424 is located at a right side position of the second seedling taking area 312. In the process of the seedling carrying plate running from right to left, the baffle 424 positioned at the right side position of the second seedling taking area 312 also moves from right to left, so that the seedlings transferred to the right guide rail 50 are pushed towards the second seedling taking opening 52, and in the process of the seedling carrying plate running from left to right, the baffle 424 positioned at the left side position of the first seedling taking area 311 also moves from left to right, so that the seedlings transferred to the left guide rail 50 are pushed towards the first seedling taking opening 51. Meanwhile, taking the state shown in fig. 2 as an example, the conveyor belt 41 between the first seedling taking port and the second seedling taking port will synchronously move to drive the seedlings in front of the seedling blanket thereon to slide laterally, and as the seedling transplanting process proceeds, when the seedling blanket becomes smaller until the last row of seedlings remains, after the transplanting arm 60 (the transplanting arm corresponding to the second seedling taking port 52) fetches seedlings from the middle of the seedling block in the last row, the seedling block will be separated into left and right parts, the part of the seedlings located behind the lateral transfer direction (also the right side shown in fig. 2) will be pushed toward the second seedling taking port 52 along the guide rail 50 under the action of the right baffle 424, and the part of the seedlings located in front of the lateral transfer direction (also the left side shown in fig. 2) will be located just on the conveyor belt 41, at this time, the conveyor belt can drive the part of the seedlings to realize the transfer to the first seedling taking port 51, for the transplanting arm 60 to fetch the seedlings, thereby avoiding the problem of abnormal transplanting caused by the accumulation of the seedlings because the last row of seedlings of each seedling blanket does not fetch all the seedlings.

Referring to fig. 3-5, the driving mechanism 42 of the conveyor assembly 40 of this embodiment is linked to the seedling transverse conveyor to move the seedling carrying plate 31 in synchronization with the conveyor belt 41. Specifically, the transmission mechanism 42 includes a rack 421, a gear box 422 and a roller 423, wherein the rack 421 is disposed on the seedling carrying plate 31 and arranged along the transverse extension of the seedling carrying plate 31 and can move together with the seedling carrying plate 31. The gear box 422 is arranged on the guide rail 50, and the power input end of the gear box 422 is in transmission connection with the rack 421. The two rollers 423 are supported on a box 4220 and are arranged at intervals, the conveyor belt 41 is wound on the rollers, and one of the rollers 423 is in transmission connection with the power output end of the gear box 422. Still more specifically, the gear box 422 includes a housing 4220 and a gear assembly disposed inside the housing 4220, wherein the gear assembly includes a first transmission shaft 4221, a spur gear 4222, a first bevel gear 4223 and a second bevel gear 4224, and the spur gear 4222 is coaxially connected to a first end of the first transmission shaft 4221 and is engaged with the rack 421. A first bevel gear 4223 is coaxially coupled to a second end of the first transmission shaft 4221, a second bevel gear 4224 is coaxially coupled to an end of one of the rollers 423, and the first bevel gear 4223 is engaged with the second bevel gear 4224. Both the first transmission shaft 4221 and the roller 423 may be assembled into the housing 4220 through a bearing 4225, thereby achieving free rotation. When the seedling transverse conveying device acts, the seedling carrying plate 31 can move left and right, so that the rack 421 is driven to move left and right, the rack 421 moves to drive the spur gear 4222 and the first transmission shaft 4221 to rotate, the torque is transmitted to the roller 423 through the first bevel gear 4223 and the second bevel gear 4224, and the rotation of the roller 423 can realize the circular rotation of the transmission belt 41.

As another preferred embodiment, partial areas of the guide rails can be omitted and replaced by the conveyor belt assemblies 40, for example, three conveyor belt assemblies 40 are arranged at each seedling taking area, and the three conveyor belt assemblies 40 are sequentially arranged at intervals along the transverse direction of the seedling carrying plate 31 and are conveyed in the same direction. The transmission mechanisms of the three conveyor assemblies 40 can be linked with the seedling transverse conveying devices (namely, the seedling carrying plates 31) of the seedling carrying plates. A first seedling taking opening 51 is defined between two adjacent conveyor belt assemblies 40 corresponding to the first seedling taking area 311, a second seedling taking opening 52 is defined between two adjacent conveyor belt assemblies 40 corresponding to the second seedling taking area 312, the first seedling taking opening 51 forms a first seedling taking position, and the second seedling taking opening 52 forms a second seedling taking position. After the longitudinal seedling conveying device finishes the action, the front seedlings of the seedling blanket are shifted to the front parts corresponding to the two adjacent conveying belts 41, and when the seedling carrying plate 31 transversely moves, the conveying belts 41 of the two adjacent conveying belt assemblies 40 synchronously move towards the same direction, so that the seedlings transferred to the two conveying belts 41 are respectively driven to be pushed towards the first seedling taking port 51 and the second seedling taking port 52.

The seedling stage 30 of the present embodiment can be applied to various conventional rice transplanting machines, such as a riding high-speed rice transplanting machine, a simple riding rice transplanting machine, and a hand-held stepping rice transplanting machine. For a riding type high-speed rice transplanter, the seedling carrying platform 30 can be inclined downwards from the front part of the rice transplanter body 10 to the rear part of the rice transplanter body 10; for a simple riding type rice transplanter, the seedling stage 30 may be inclined downward from the rear of the rice transplanter body 10 to the front of the rice transplanter body 10.

Referring to fig. 6 and 7, the embodiment also relates to a rice transplanter applying the seedling carrying platform for the rice transplanter, the rice transplanter is a simple riding type rice transplanter, is improved by a walking type step rice transplanter, and specifically comprises a rice transplanter body 10 (namely a front frame), a front wheel 16, a floating boat, a wheel driving mechanism, a rear frame 20 and a rear wheel 23. Wherein the front wheel 16 is connected to the transplanter body 10 for supporting the transplanter body 10. The rear wheel 23 is coupled to the rear frame 20 for supporting the rear frame 20. The front part of the rear frame 20 is connected with the transplanter body 10, thereby forming the integral frame structure of the transplanter. The wheel driving mechanism is provided on the rice transplanter body 10 and connected to the front wheel 16 to drive the front wheel 16 to rotate.

Referring to fig. 6, the front wheels 16 of the present embodiment are two, and the two front wheels 16 are arranged side by side in the left-right direction. Specifically, the rice transplanter body 10 has a supporting shaft 12 extending in the transverse direction, and the supporting shaft 12 in this embodiment may be a sleeve body extending to the left and right from a box 4220 of a power body 11 (described in detail below) of the wheel driving mechanism. The centers of the two front wheels 16 are offset by a predetermined distance toward the rear wheel 23 side with respect to the support shaft 12, and can swing up and down with the support shaft 12 as a rotation center. The rear wheel 23 for supporting the rear frame 20 may be one, two or more, and the rear wheel 23 of the present embodiment is preferably one.

The pontoon includes a middle pontoon 14 positioned at the middle of the transplanter body 10 and side pontoons 15 positioned at the left and right sides. The rice transplanter body 10 is placed on the middle pontoon 14 and the left and right side pontoons 15. The wheel drive mechanism includes a power body 11, a laterally extending second transmission shaft (not shown), and two transmission cases 13. The power body 11 is arranged at the front part of the transplanter body 10 and is specifically placed on a middle floating boat 14 of the transplanter body 10. The second transmission shaft is located in the above-mentioned support shaft 12, and two transmission cases 13 are connected to both ends of the second transmission shaft.

Referring to fig. 6, the power output end of the power body 11 of the wheel driving mechanism is connected with the second transmission shaft, so as to drive the second transmission shaft to rotate around the axis of the second transmission shaft, the power input end of the transmission case 13 is in transmission connection with the second transmission shaft and can swing up and down relative to the support shaft 12, and the power output end of the transmission case 13 is in transmission connection with the front wheel 16. The transmission case 13 of the present embodiment corresponds to a transmission mechanism 42 capable of supplying forward power to the front wheels 16, and also serves as a "swinging body" for realizing the relative lifting of the front wheels 16 and the transplanter body 10, and the structures of the transmission case 13 and the transmission case 13 are the prior art, as disclosed in "swinging body of walking transplanter" with application number CN 97125505.9.

The rear frame 20 of the present embodiment has two connecting arms 21 extending forward, and correspondingly, both ends of the support shaft 12 are provided with bushings 22 capable of rotating relative to the support shaft 12, and the ends of the two connecting arms 21 are connected to the support shaft 12 through the respective corresponding bushings 22. The sleeve 22 of this embodiment is free to swing up and down, and it is contemplated that the sleeve 22 may be connected to the support shaft 12 or to the second drive shaft. Preferably, two connecting arms 21 are erected above the transplanter body 10, specifically, the connecting arms 21 extend forwards across the seedling box plate above and then are bent downwards to be connected with the supporting shaft 12, thereby avoiding the problem that the connecting arms 21 of the rear frame 20 interfere with other parts of the transplanter body 10. It is conceivable that the two connecting arms 21 may be located on the left and right sides of the rice transplanter body 10, respectively.

The front wheel 16 of the embodiment is connected to the transplanter body 10 so as to swing up and down with the support shaft 12 as the center of rotation, and the front part of the rear frame 20 is connected to the transplanter body 10 so as to swing up and down with respect to the transplanter body 10, wherein the axis of rotation of the rear frame 20 with respect to the swing of the transplanter body 10 is coaxial with the support shaft 12. When the driving wheel of the transplanter runs on an uneven hard bottom layer, especially when the front and back areas of the hard bottom layer have height difference, because the rear frame 20 (the rear wheel 23) and the front wheel 16 both swing by taking the axis of the supporting shaft 12 of the transplanter body 10 as the rotating center, under the condition, the transplanter body 10 (the floating boat) can not be interfered to have the inclination problem, so that the transplanting depth can be kept as consistent as possible, the transplanting effect is ensured, and the yield is improved.

On the basis of the above embodiments, other embodiments can be obtained by replacing and improving the related technical features. For example, each seedling taking area is divided into at least three sub-seedling taking areas along the transverse direction, correspondingly, at least two conveyor belt assemblies 40 are arranged in each installation gap 500 of the guide rail, each conveyor belt assembly 40 is sequentially arranged at intervals along the transverse direction of the seedling carrying plate 31 and is conveyed towards the same direction, a gap is formed between any two adjacent conveyor belt assemblies 40, gaps are formed between the left side of the leftmost conveyor belt assembly 40 and the guide rail 50 and between the right side of the rightmost conveyor belt assembly 40 and the guide rail 50, any two adjacent gaps respectively form a first seedling taking port 51 and a second seedling taking port 52 for taking seedlings by two opposite transplanting arms 60 on the seedling transplanting machine, the first seedling taking port 51 is a first seedling taking position, and the second seedling taking port 52 is a second seedling taking position. For another example, the conveyor belt assembly 40 may not be linked to the seedling transverse conveying device, i.e., the conveyor belt 41 may be driven independently of the seedling transverse conveying device, such as by a separate motor connected to the transmission mechanism 42 of the conveyor belt assembly 40. For another example, the transmission mechanism 42 of the conveyor belt assembly 40 may also be one or any combination of various prior art techniques, such as a gear transmission, a worm gear transmission, etc. For another example, during the initial seedling taking stage of the seedling blanket, the conveyor belt 41 may not be activated, i.e. only functions as a "support member", so that the seedlings in the front portion of the seedling blanket thereon slide along the conveyor belt 41, and as the seedling taking process is performed, when the seedling blanket remains in the last row of seedlings, the conveyor belt 41 starts to be activated to drive the separated seedling blocks to be conveyed to the first seedling taking port 51 or the second seedling taking port 52.

Claims (10)

1. A seedling carrying platform for a rice transplanter comprises:

the seedling carrying plate (31) is provided with at least one seedling placing area (310), the seedling placing area (310) is used for placing a seedling blanket, a seedling taking area is arranged in front of each seedling placing area (310), each seedling taking area is transversely divided into at least two sub seedling taking areas, the adjacent two sub seedling taking areas are a first seedling taking area (311) and a second seedling taking area (312), the first seedling taking area (311) is provided with a first seedling taking position, and the second seedling taking area (312) is provided with a second seedling taking position;

the seedling longitudinal conveying device is arranged on the seedling carrying plate (31) and is used for conveying the seedlings placed on the seedling carrying plate (31) from back to front;

the seedling transverse conveying device acts on the seedling carrying plate (31) and drives the seedling carrying plate (31) to transversely reciprocate;

the method is characterized in that: a conveyor belt assembly (40) is arranged between the first seedling taking position and the second seedling taking position at least, the conveyor belt assembly (40) comprises a conveyor belt (41) and a transmission mechanism (42), the conveyor belt (41) extends along the transverse direction of the seedling carrying plate (31), and the conveyor belt (41) can be circularly and reciprocally rotatably arranged on the transmission mechanism (42), so that a seedling blanket transferred from the seedling carrying plate (31) to the conveyor belt (41) is driven to be transversely transferred to the first seedling taking position or the second seedling taking position.

2. The seedling carrying platform for the transplanter according to claim 1, wherein: the transmission mechanism (42) is linked with the seedling transverse conveying device, so that the seedling carrying plate (31) and the conveying belt (41) move synchronously.

3. The seedling stage for a rice transplanter according to claim 2, wherein the transmission mechanism (42) comprises:

the rack (421) is arranged on the seedling carrying plate (31), transversely extends along the seedling carrying plate (31), and can move along with the seedling carrying plate (31);

the power input end of the gear box (422) is in transmission connection with the rack (421);

and two rolling shafts (423) are arranged at intervals and used for winding the conveyor belt (41), and one of the rolling shafts (423) is in transmission connection with the power output end of the gear box (422).

4. The seedling carrying platform for the transplanter according to claim 3, wherein: the gear box (422) includes box (4220) and is equipped with gear assembly in box (4220), the gear assembly includes first transmission shaft (4221), straight-toothed gear (4222), first bevel gear (4223) and second bevel gear (4224), straight-toothed gear (4222) coaxial coupling in the first end of first transmission shaft (4221), and with rack (421) meshing, first bevel gear (4223) coaxial coupling in the second end of first transmission shaft (4221), second bevel gear (4224) coaxial coupling is in one of them on roller (423), first bevel gear (4223) with second bevel gear (4224) meshing.

5. A seedling carrying platform for a rice transplanter according to any one of claims 1 to 4, wherein: the front side of the seedling carrying plate (31) is also provided with a guide rail (50) which is arranged along the transverse extension of the seedling carrying plate (31) and is used for carrying seedlings transferred from the seedling carrying plate (31), the seedling carrying plate (31) is transversely arranged on the guide rail (50) in a reciprocating way, the guide rail (50) is provided with an installation gap (500) corresponding to each seedling placing area (310), each seedling taking area is transversely divided into two sub seedling taking areas, one conveying belt assembly (40) is arranged in each installation gap (500), gaps are respectively arranged between the left side and the right side of the conveying belt assembly (40) and the guide rail (50), the two gaps respectively form a first seedling taking port (51) and a second seedling taking port (52) for taking seedlings by two opposite transplanting arms (60) on a seedling transplanting machine, and the first seedling taking port (51) is the first seedling taking position, the second seedling taking port (52) is the second seedling taking position; or,

the front side of the seedling carrying plate (31) is also provided with a guide rail (50) which is arranged along the transverse extension of the seedling carrying plate (31) and used for carrying seedlings transferred from the seedling carrying plate (31), the seedling carrying plate (31) is transversely arranged on the guide rail (50) in a reciprocating sliding manner, the guide rail (50) is provided with mounting notches (500) corresponding to each seedling placing area (310), each seedling taking area is transversely divided into at least three sub-seedling taking areas, at least two conveying belt assemblies (40) are arranged in each mounting notch (500), each conveying belt assembly (40) is sequentially arranged along the transverse direction of the seedling carrying plate (31) at intervals and is conveyed towards the same direction, a gap is formed between any two adjacent conveying belt assemblies (40), and the left side of the leftmost conveying belt assembly (40) and the guide rail (50) as well as the right side of the rightmost conveying belt assembly (40) and the guide rail (50) are also provided with gaps The gaps, any two adjacent gaps respectively form a first seedling taking port (51) and a second seedling taking port (52) for taking seedlings by two opposite transplanting arms (60) on the transplanter, the first seedling taking port (51) is the first seedling taking position, and the second seedling taking port (52) is the second seedling taking position.

6. The seedling carrying platform for the transplanter according to claim 5, wherein: the two sides of the front part of the seedling carrying plate (31) are provided with baffle plates (424) extending forwards, and the two baffle plates (424) are used for pushing seedlings transferred to the guide rail (50) towards the corresponding first seedling taking port or the second seedling taking port (52).

7. A seedling carrying platform for a rice transplanter according to any one of claims 1 to 4, wherein: each seedling taking area is provided with two sub-seedling taking areas, each seedling taking area is provided with three conveyor belt assemblies (40), the three conveyor belt assemblies (40) are sequentially arranged at intervals along the transverse direction of the seedling carrying plate (31) and are conveyed towards the same direction, a first seedling taking port (51) is defined between every two adjacent conveyor belt assemblies (40) corresponding to the first seedling taking area (311), a second seedling taking port (52) is defined between every two adjacent conveyor belt assemblies (40) corresponding to the second seedling taking area (312), the first seedling taking port (51) forms a first seedling taking position, and the second seedling taking port (52) forms a second seedling taking position.

8. A rice transplanter to which the seedling stage for a rice transplanter according to any one of claims 1 to 7 is applied, comprising a rice transplanter body (10), characterized in that: the seedling carrying platform is arranged on the transplanter body (10) and inclines downwards from back to front.

9. The rice transplanter according to claim 8, further comprising a front wheel (16), a rear frame (20) and a rear wheel (23), wherein the rice transplanter body (10) has a support shaft (12) extending in a transverse direction, the center of the front wheel (16) is offset backward by a certain distance with respect to the support shaft (12) and can swing up and down with the support shaft (12) as a rotation center, the rear wheel (23) is provided on the rear frame (20) for supporting the rear frame (20), the front portion of the rear frame (20) is rotatably connected to the rice transplanter body (10) in a manner of being capable of swinging up and down with respect to the rice transplanter body (10), and the rotation axis of the rear frame (20) with respect to the swinging of the rice transplanter body (10) is coaxial with the support shaft (12).

10. A rice transplanter according to claim 9, wherein: also comprises a wheel driving mechanism arranged on the transplanter body (10), the wheel driving mechanism comprises a power main body (11), a second transmission shaft extending transversely and two transmission boxes (13), the power output end of the power main body (11) is connected with the second transmission shaft which is positioned in the supporting shaft (12), the power output end of the transmission case (13) is in transmission connection with the front wheels (16), the power input end of the transmission case (13) is in transmission connection with the second transmission shaft, and can swing up and down relative to the supporting shaft (12), both ends of the supporting shaft (12) are provided with shaft sleeves (22) which can rotate relative to the supporting shaft (12), correspondingly, the rear frame (20) is provided with two connecting arms (21) extending forwards, and each connecting arm (21) is connected with the supporting shaft (12) through the corresponding shaft sleeve (22).

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