Clip type rotary seedling storage and delivery device for dry land transplanter

Abstract

The utility model discloses a clip type rotary seedling storage and delivery device for a dry land transplanter. The clip type rotary seedling storage and delivery device consists of seedling cups, a seedling tray chassis I, a seedling tray chassis II, a seedling tray chassis III, a seedling cup tray, a support column, a transmission mechanism and a stop block, one side of a motor frame in the transmission mechanism is connected with the frame through bolts and nuts, a motor is fixed on one side, a motor output shaft is connected with a main transmission shaft base, and a main transmission shaft is connected with the main transmission shaft base through a spline. The seedling tray base plates are divided into three layers, a spline groove is formed in the middle of each seedling tray base plate and connected with the main transmission shaft through a spline, and the seedling tray base plates are connected through the supporting columns. The seedling cup trays are arranged in the grooves of the seedling tray base plate, and 16 seedling cups can be stored in each layer of seedling cup trays.

Description

Technical Field

[0001] The utility model relates to a novel seedling storage device, in particular to a rotary seedling storage and feeding device similar to a bullet loading mechanism. Background Art

[0002] In the field of agricultural production, despite continuous technological progress, manual transplanting is still the dominant method at present. This method not only takes a lot of time and effort, but also has relatively low efficiency, which greatly restricts the improvement of agricultural production efficiency and the further reduction of labor costs. Although the semi-automatic transplanters commonly used in the market partially reduce the labor intensity, the seedling storage capacity of their seedling trays is limited, and manual replenishment of seedlings needs to be carried out in real time and continuously during the transplanting process. This defect leads to a decrease in the transplanting rate. In addition, the process of manual replenishment of seedlings is mechanically monotonous and fails to make full use of the labor force, which also affects the overall efficiency of agricultural production and the enthusiasm of workers to a certain extent. Therefore, developing more efficient and automated transplanting technologies to reduce the dependence on manual labor and improve the transplanting efficiency is an important direction for the development of current agricultural technologies. Summary of the Invention

[0003] The purpose of the utility model is to provide a magazine-type rotary seedling storage and feeding device for dryland transplanters to solve the above problems.

[0004] The technical solution of the utility model is as follows:

[0005] A magazine-type rotary seedling storage and feeding device for dryland transplanters, characterized in that it mainly includes seedling cups, the first seedling tray chassis, the second seedling tray chassis, the third seedling tray chassis, a seedling cup tray, support columns, stoppers, and a transmission mechanism.

[0006] Further, the first seedling tray chassis is arranged at the bottom of the seedling storage and feeding device; the second seedling tray chassis is arranged directly above the first seedling tray chassis; the third seedling tray chassis is arranged directly above the second seedling tray chassis; the support columns are respectively arranged between the gaps of the first seedling tray chassis and the second seedling tray chassis, and between the gaps of the second seedling tray chassis and the third seedling tray chassis; the seedling cup tray is arranged in the grooves of the first seedling tray chassis, the second seedling tray chassis, and the third seedling tray chassis; the seedling cups are arranged in a circumferential array in the through holes of the seedling cup tray; the transmission mechanism includes a motor frame, a motor, a main drive shaft base, and a main drive shaft, and is arranged in the middle of the seedling storage and feeding device.

[0007] Further, the seedling tray chassis 1 includes an upper plate of the seedling tray chassis 1, a middle plate of the seedling tray chassis 1, and a lower plate of the seedling tray chassis 1; the upper plate of the seedling tray chassis 1 is square in overall shape, with a large hole in its center for placing the seedling cup tray, and four evenly distributed circular through-holes at its four corners for installing the support columns. Also, there are 8 evenly distributed circular through-holes at its four corners, with four of them for fixing the stoppers to limit the seedling cup tray, and the other four for bolts to pass through and connect to the vehicle frame; the middle plate of the seedling tray chassis 1 is fixedly connected to the upper plate of the seedling tray chassis 1 by glue and bolts, and its structure is the same as that of the upper plate of the seedling tray chassis 1; the lower plate of the seedling tray chassis 1 is fixedly connected to the middle plate of the seedling tray chassis 1 by glue and bolts, and is square in overall shape, with four evenly distributed circular through-holes at its four corners for limiting the support columns. Also, there are 8 evenly distributed circular through-holes at its four corners, with four of them for fixing the stoppers to limit the seedling cup tray, and the other four for bolts to pass through and connect to other equipment. In addition, the lower plate of the seedling tray chassis 1 is provided with another through-hole for seedling dropping.

[0008] Further, the seedling tray chassis 2 includes an upper plate of the seedling tray chassis 2, a middle plate of the seedling tray chassis 2, and a lower plate of the seedling tray chassis 2; the upper plate of the seedling tray chassis 2 is square in overall shape, with a large hole in its center for placing the seedling cup tray, and four evenly distributed circular through-holes at its four corners for installing the support columns. Also, there are 4 evenly distributed circular through-holes at its four corners for fixing the stoppers to limit the seedling cup tray; the middle plate of the seedling tray chassis 2 is fixedly connected to the upper plate of the seedling tray chassis 2 by glue and bolts, and its structure is the same as that of the upper plate of the seedling tray chassis 2, except that the 4 evenly distributed circular through-holes at its four corners are different from those of the upper plate of the seedling tray chassis 2. The middle plate of the seedling tray chassis 2 is provided with 4 evenly distributed circular through-holes for limiting the support columns; the lower plate of the seedling tray chassis 2 is fixedly connected to the middle plate of the seedling tray chassis 2 by glue and bolts, and is square in overall shape, with four evenly distributed circular through-holes at its four corners for installing the support columns. Also, there are 4 evenly distributed circular through-holes at its four corners for fixing the stoppers to limit the seedling cup tray. In addition, the lower plate of the seedling tray chassis 2 is provided with another through-hole, whose orientation has a 22.5° counterclockwise difference from the through-hole of the lower plate of the seedling tray chassis 1, for dropping seedlings to the seedling cups on the upper plate of the seedling tray chassis 1 to replenish seedlings for the seedling tray chassis 1.

[0009] Further, the seedling tray chassis three includes an upper tray of the seedling tray chassis three, a middle tray of the seedling tray chassis three, and a lower tray of the seedling tray chassis three; the upper tray of the seedling tray chassis three is square in overall shape, with a large hole in its center for placing the seedling cup tray, and 4 evenly distributed circular through-holes at its four corners for limiting the support columns, and 4 evenly distributed circular through-holes are also provided at its four corners for fixing the stoppers to limit the seedling cup tray; the middle tray of the seedling tray chassis three is fixedly connected to the upper tray of the seedling tray chassis three by glue and bolts, and its structure is the same as that of the upper tray of the seedling tray chassis three; the lower tray of the seedling tray chassis three is fixedly connected to the middle tray of the seedling tray chassis three by glue and bolts, and is square in overall shape, with evenly distributed circular through-holes at its four corners for installing the support columns, and 4 evenly distributed circular through-holes are also provided at its four corners for fixing the stoppers to limit the seedling cup tray. In addition, the lower tray of the seedling tray chassis three is further provided with a through-hole, whose orientation has a 22.5° counterclockwise difference from the through-hole of the lower tray of the seedling tray two, for dropping seedlings to the seedling cups on the upper tray of the seedling tray two to replenish seedlings for the seedling tray two.

[0010] Further, the transmission mechanism includes a motor frame, a motor, a main drive shaft base, and a main drive shaft; one side of the motor frame is fixedly connected to the vehicle frame by bolts and nuts, and the motor is fixed on the other side; the main drive shaft base is connected to the motor drive shaft for transmitting the power of the motor to the main drive shaft; the main drive shaft is connected to the main drive shaft base by a spline for driving the three-layer seedling tray to rotate.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: An innovative storage-seedling type planting mode is proposed, and a clip-type seedling storage system that can be conveniently disassembled and assembled is designed; the operation efficiency of the transplanter is improved, the problem of missed seedlings caused by untimely and inaccurate manual seedling feeding is reduced, and at the same time, the labor intensity of manual work is also reduced; the seedling storage device innovatively integrates the "clip type" concept into the mechanical seedling feeding process of the transplanter, and the three-layer stacked disc seedling dropping mechanism realizes large-capacity seedling storage and rapid replacement while also meeting the requirement of orderly dropping of seedlings. Description of the Drawings

[0012] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objectives, and advantages of the present invention will become more apparent:

[0013] Figure 1 It is a three-dimensional structure diagram of a clip-type rotary seedling storage and feeding device for a dryland transplanter;

[0014] Figure 2 It is a structural schematic diagram of the seedling tray chassis frame of a clip-type rotary seedling storage and feeding device for a dryland transplanter;

[0015] Figure 3 It is a structural schematic diagram of the transmission mechanism of a clip-type rotary seedling storage and feeding device for a dryland transplanter;

[0016] Figure 4 It is a schematic diagram of the overall structure of a magazine-type rotary seedling storage and feeding device for a dryland transplanter. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] Among them, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, rather than physical diagrams, and cannot be construed as a limitation of this patent; in order to better illustrate the embodiments of the present invention, some components in the accompanying drawings will be omitted, enlarged or reduced, which does not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0019] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and cannot be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0020] Please refer to Figures 1-4 , the present invention provides a technical solution: a magazine-type rotary seedling storage and feeding device for a dryland transplanter, which is characterized in that it mainly includes a seedling cup 4, a seedling tray chassis one 1, a seedling tray chassis two 2, a seedling tray chassis three 3, a stop block 5, a seedling cup tray 7, a support column 6, and a transmission mechanism 8.

[0021] In this embodiment, the first seedling tray chassis 1 is arranged at the bottom of the seedling storage and conveying device; the second seedling tray chassis 2 is arranged directly above the first seedling tray chassis 1; the third seedling tray chassis 3 is arranged directly above the second seedling tray chassis 2; the support columns 6 are respectively arranged between the gaps of the first seedling tray chassis 1 and the second seedling tray chassis 2, and between the gaps of the second seedling tray chassis 2 and the third seedling tray chassis 3; the seedling cup tray 7 is arranged in the grooves of the first seedling tray chassis 1, the second seedling tray chassis 2, and the third seedling tray chassis 3; the seedling cups 4 are arranged in a circular array in the through holes of the seedling cup tray 7; the transmission mechanism 8 includes a motor frame 84, a motor 83, a main drive shaft base 82, and a main drive shaft 81, and is arranged in the middle of the seedling storage and conveying device.

[0022] In this embodiment, the first seedling tray chassis 1 includes an upper plate 11 of the first seedling tray chassis, a middle plate 12 of the first seedling tray chassis, and a lower plate 13 of the first seedling tray chassis; the upper plate 11 of the first seedling tray chassis is square in overall shape, with a large hole in the center for placing the seedling cup tray 7, and evenly circular through holes at its four corners for installing the support columns 6. Also, there are 8 evenly circular through holes at its four corners, of which four through holes are used to fix the stop block 5 to limit the seedling cup tray 7, and the other four through holes are used for bolts to pass through and connect to the vehicle frame; the middle plate 12 of the first seedling tray chassis is fixedly connected to the upper plate 11 of the first seedling tray chassis by glue and bolts, and its structure is the same as that of the upper plate 11 of the first seedling tray chassis; the lower plate 13 of the first seedling tray chassis is fixedly connected to the middle plate 12 of the first seedling tray chassis by glue and bolts, and is square in overall shape, with evenly circular through holes at its four corners for limiting the support columns 6. Also, there are 8 evenly circular through holes at its four corners, of which four through holes are used to fix the stop block 5 to limit the seedling cup tray 7, and the other four through holes are used for bolts to pass through and connect to other equipment. In addition, the lower plate 13 of the first seedling tray chassis is provided with another through hole for seedling dropping.

[0023] In this embodiment, the seedling tray chassis two 2 includes a seedling tray chassis two upper plate 21, a seedling tray chassis two middle plate 22, and a seedling tray chassis two lower plate 23; the seedling tray chassis two upper plate 21 is in the overall shape of a square, with a large hole in its center for placing the seedling cup tray 7, and 4 evenly distributed circular through-holes at its four corners for installing the support columns 6, and 4 evenly distributed circular through-holes are also provided at its four corners for fixing the stop blocks 5 to limit the seedling cup tray 7; the seedling tray chassis two middle plate 22 is fixedly connected to the seedling tray chassis two upper plate 21 by glue and bolts, and its structure is the same as that of the seedling tray chassis two upper plate 21, except that the 4 evenly distributed circular through-holes at the four corners are different from those of the seedling tray chassis two upper plate 21. The seedling tray chassis two middle plate 22 is provided with 4 evenly distributed circular through-holes for limiting the support columns 6; the seedling tray chassis two lower plate 23 is fixedly connected to the seedling tray chassis two middle plate 22 by glue and bolts, and is in the overall shape of a square, with evenly distributed circular through-holes at its four corners for installing the support columns 6, and 4 evenly distributed circular through-holes are also provided at its four corners for fixing the stop blocks 5 to limit the seedling cup tray 7. In addition, the seedling tray chassis two lower plate 23 is further provided with a through-hole, and the orientation is 22.5° counterclockwise different from the through-hole of the seedling tray chassis one lower plate 13, for dropping seedlings to the seedling cups 4 on the seedling tray chassis one upper plate 11 to replenish seedlings for the seedling tray chassis one 1.

[0024] In this embodiment, the seedling tray chassis three 3 includes a seedling tray chassis three upper plate 31, a seedling tray chassis three middle plate 32, and a seedling tray chassis three lower plate 33; the seedling tray chassis three upper plate 31 is in the overall shape of a square, with a large hole in its center for placing the seedling cup tray 7, and 4 evenly distributed circular through-holes at its four corners for limiting the support columns 6, and 4 evenly distributed circular through-holes are also provided at its four corners for fixing the stop blocks 5 to limit the seedling cup tray 7; the seedling tray chassis three middle plate 32 is fixedly connected to the seedling tray chassis three upper plate 31 by glue and bolts, and its structure is the same as that of the seedling tray chassis three upper plate 31; the seedling tray chassis three lower plate 33 is fixedly connected to the seedling tray chassis three middle plate 32 by glue and bolts, and is in the overall shape of a square, with evenly distributed circular through-holes at its four corners for installing the support columns 6, and 4 evenly distributed circular through-holes are also provided at its four corners for fixing the stop blocks 5 to limit the seedling cup tray 7. In addition, the seedling tray chassis three lower plate 33 is further provided with a through-hole, and the orientation is 22.5° counterclockwise different from the through-hole of the seedling tray chassis two lower plate 23, for dropping seedlings to the seedling cups on the seedling tray chassis two upper plate 21 to replenish seedlings for the seedling tray chassis two 2.

[0025] In this embodiment, the transmission mechanism 8 includes a motor frame 84, a motor 83, a main transmission shaft base 82, and a main transmission shaft 81. One side of the motor frame 84 is fixedly connected to the vehicle frame by bolts and nuts, and the motor 83 is fixed on the other side. The main transmission shaft base 82 is connected to the motor transmission shaft and is used to transmit the power of the motor to the main transmission shaft 81. The main transmission shaft 81 is connected to the main transmission shaft base 82 by splines and is used to drive the three-layer seedling tray to rotate.

[0026] In this embodiment, the transmission mechanism drives the seedling tray chassis 1, the seedling tray chassis 2, and the seedling tray chassis 3 to rotate synchronously, and orderly conveys the seedlings in the seedling cups 4 on the seedling cup tray 7 above them through the through holes of the lower tray 13 of the seedling tray chassis 1 to other devices. At the same time, the seedling tray chassis 2 conveys the seedlings to the seedling cups 4 on the upper tray 11 of the seedling tray chassis 1 through the through holes of the lower tray 23 of the seedling tray chassis 2. The seedling tray chassis 3 conveys the seedlings to the seedling cups 4 on the upper tray 21 of the seedling tray chassis 2 through the through holes of the lower tray 33 of the seedling tray chassis 3, realizing the orderly conveyance of seedlings from the seedling tray chassis 3 to the seedling tray chassis 2, increasing the seedling storage capacity, and reducing the labor intensity of workers.

[0027] Compared with the prior art, the beneficial effects of the present utility model are as follows: An innovative seedling storage type planting mode is proposed, and a clip-type seedling storage system that can be conveniently disassembled and assembled is designed; the operation efficiency of the transplanter is improved, the problem of missed seedlings caused by untimely and inaccurate manual seedling feeding is reduced, and at the same time, the labor amount of workers is also reduced; the "clip-type" concept is innovatively incorporated into the mechanical seedling feeding process of the transplanter in the seedling storage device, and a three-layer superimposed disc seedling dropping mechanism realizes the requirements of large-capacity seedling storage, rapid replacement, and orderly dropping of seedlings.

[0028] The above embodiments are only used to illustrate the technical concept and characteristics of the present utility model, and the purpose is to enable those who are familiar with this technology to understand the content of the present utility model and implement it accordingly, and it cannot be used to limit the protection scope of the present utility model; all equivalent changes or modifications made according to the spirit of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A clip-type rotating seedling storage and delivery device for a dryland transplanter, characterized in that: The device comprises a seedling tray chassis 1 (1), a seedling tray chassis 2 (2), a seedling tray chassis 3 (3), a seedling cup (4), a stopper (5), a support column (6), a seedling cup plate (7), and a transmission mechanism (8); the seedling tray chassis 1 (1) comprises an upper plate (11) of the seedling tray chassis 1, a middle plate (12) of the seedling tray chassis 1, and a lower plate (13) of the seedling tray chassis 1, and is arranged at the bottom of the seedling storage and delivery device; the seedling tray chassis 2 (2) comprises an upper plate (21) of the seedling tray chassis 2, a middle plate (22) of the seedling tray chassis 2, and a lower plate (23) of the seedling tray chassis 2, and is arranged directly above the seedling tray chassis 1 (1); The seedling tray chassis three (3) comprises a seedling tray chassis three upper plate (31), a seedling tray chassis three middle plate (32), and a seedling tray chassis three lower plate (33), and is arranged directly above the seedling tray chassis two (2); the support column (6) is respectively arranged between the gap between the seedling tray chassis one (1) and the seedling tray chassis two (2), and between the gap between the seedling tray chassis two (2) and the seedling tray chassis three (3); the seedling cup plate (7) is respectively arranged in the grooves of the seedling tray chassis one (1), the seedling tray chassis two (2), and the seedling tray chassis three (3); the seedling cups (4) are arranged in a circular array in the through holes of the seedling cup plates (7); the transmission mechanism (8) comprises a motor frame (84), a motor (83), a main transmission shaft base (82), and a main transmission shaft (81), and is arranged in the middle of the seedling storage and delivery device.

2. The clip-type rotating seedling storage and delivery device for a dryland transplanter according to claim 1, characterized in that: The seedling tray chassis (1) comprises an upper plate (11) of the seedling tray chassis, a middle plate (12) of the seedling tray chassis, and a lower plate (13) of the seedling tray chassis; the upper plate (11) of the seedling tray chassis is a square in shape, with a large hole in the center for placing the seedling cup plate (7), and four corners thereof are provided with uniform circular through holes for installing the support column (6), and the four corners thereof are also provided with 8 uniform circular through holes, four of which are used for fixing the stopper (5) so as to limit the position of the seedling cup plate (7), and the other four through holes are used for bolts to pass through and connect with the vehicle frame; the middle plate (12) of the seedling tray chassis is connected to the upper plate (11) of the seedling tray chassis by glue and bolts. 11) is fixedly connected, and its structure is consistent with the seedling tray chassis-upper plate (11); the seedling tray chassis-lower plate (13) is fixedly connected to the seedling tray chassis-middle plate (12) by glue and bolts, and the overall shape is a square, and its four corners are provided with uniform circular through holes for limiting the support column (6), and its four corners are also provided with 8 uniform circular through holes, four of which are used to fix the stopper (5) to limit the seedling cup plate (7), and the other four through holes are used for bolts to pass through and connect the seedling tray chassis-middle plate (12) with the seedling tray chassis-lower plate (13), except that the seedling tray chassis-lower plate (13) is also provided with a through hole for dropping seedlings.

3. The clip-type rotating seedling storage and delivery device for a dryland transplanter according to claim 1, characterized in that: The seedling tray chassis 2 (2) comprises an upper plate (21) of the seedling tray chassis 2, a middle plate (22) of the seedling tray chassis 2, and a lower plate (23) of the seedling tray chassis 2; the upper plate (21) of the seedling tray chassis 2 is a square in shape, with a large hole in the center for placing the seedling cup plate (7), and four uniform circular through holes are provided at its four corners for installing the support column (6), and four uniform circular through holes are also provided at its four corners for fixing the stopper (5) so as to limit the seedling cup plate (7); the middle plate (22) of the seedling tray chassis 2 is fixedly connected to the upper plate (21) of the seedling tray chassis 2 by glue and bolts, and its structure is consistent with that of the upper plate (21) of the seedling tray chassis 2, except that the four uniform circular through holes provided at the four corners are different from those of the upper plate (21) of the seedling tray chassis 2. The second middle plate (22) of the seedling tray chassis is provided with 4 uniform circular through holes for limiting the position of the support column (6); the second lower plate (23) of the seedling tray chassis is fixedly connected to the second middle plate (22) of the seedling tray chassis by glue and bolts, and the overall shape is a square, and its four corners are provided with uniform circular through holes for installing the support column (6), and its four corners are also provided with 4 uniform circular through holes for fixing the stopper (5) so as to limit the position of the seedling cup plate (7), in addition, the second lower plate (23) of the seedling tray chassis is provided with another through hole, which is 22.5° counterclockwise from the through hole of the first lower plate (13) of the seedling tray chassis, and is used to drop seedlings to the seedling cup (4) on the first upper plate (11) of the seedling tray chassis, so as to supplement the seedlings of the first seedling tray chassis (1).

4. The clip-type rotating seedling storage and delivery device for a dryland transplanter according to claim 1, characterized in that: The seedling tray chassis three (3) comprises a seedling tray chassis three upper plate (31), a seedling tray chassis three middle plate (32), and a seedling tray chassis three lower plate (33); the seedling tray chassis three upper plate (31) is in the shape of a square, with a large hole in the center for placing the seedling cup plate (7), and four uniform circular through holes are provided at its four corners for limiting the position of the support column (6), and four uniform circular through holes are also provided at its four corners for fixing the stopper (5) so as to limit the position of the seedling cup plate (7); the seedling tray chassis three middle plate (32) is fixedly connected to the seedling tray chassis three upper plate (31) by glue and bolts, and its structure is similar to the seedling tray chassis three upper plate ( 31); the seedling tray chassis three lower plate (33) is fixedly connected to the seedling tray chassis three middle plate (32) by glue and bolts, and the overall shape is a square, and its four corners are provided with uniform circular through holes for installing the support column (6), and its four corners are also provided with 4 uniform circular through holes for fixing the stopper (5) so as to limit the seedling cup plate (7), in addition, the seedling tray chassis three lower plate (33) is provided with another through hole, which is 22.5° counterclockwise from the through hole of the seedling tray chassis two lower plate (23), and is used to drop seedlings to the seedling cup (4) on the seedling tray chassis two upper plate (21), so as to supplement the seedlings of the seedling tray chassis two (2).

5. The clip-type rotating seedling storage and delivery device for a dryland transplanter according to claim 1, characterized in that: The transmission mechanism (8) comprises a motor frame (84), a motor (83), a main transmission shaft base (82) and a main transmission shaft (81); one side of the motor frame (84) is fixedly connected to the vehicle frame via bolts and nuts, and the other side fixes the motor (83); the main transmission shaft base (82) is connected to the motor transmission shaft and is used to transmit power from the motor to the main transmission shaft (81); the main transmission shaft (81) and the main transmission shaft base (82) are connected via a spline and are used to drive the three-layer seedling tray to rotate.

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