Self-propelled range-extending vegetable tobacco seedling transplanter

Abstract

The utility model provides a self-propelled range-extended vegetable tobacco seedling transplanter which comprises a whole machine support, a walking mechanism, a seedling dropping mechanism, a seedling planting mechanism, a power assembly and a controller, the whole machine support is arranged on the walking mechanism, and the seedling dropping mechanism, the seedling planting mechanism, the power assembly and the controller are all arranged on the whole machine support. The seedling dropping mechanism comprises a plurality of seedling dropping cylinders which are distributed at equal intervals in the circumferential direction, the seedling planting mechanism comprises a seedling receiving guide hopper, a well cellar type seedling planting nozzle and a seedling planting driving execution assembly, and the power assembly provides electric energy for the walking mechanism, the seedling dropping mechanism, the seedling planting mechanism and the controller. The transplanter is simple in structural composition and convenient for subsequent maintenance and repair; when transplanting operation is carried out, the action of each execution mechanism is independently executed by an independent motor, and the controller can flexibly control the running state of each motor according to requirements, so that accurate matching and flexible adjustment of the executable action can be realized.

Description

Technical Field

[0001] This utility model relates to the field of crop seedling transplanting technology, specifically a self-propelled range-extended vegetable and tobacco seedling transplanter. Background Technology

[0002] Because transplanting results in a high success rate and facilitates planting management, it is the primary method for transplanting seedlings in both vegetable and tobacco seedling cultivation. Currently, there are two main methods for transplanting tobacco seedlings: manual planting and mechanized planting. Manual transplanting requires frequent bending over, leading to high labor intensity and low efficiency. While mechanized planting can reduce labor intensity and increase efficiency, existing tobacco seedling transplanting machines rely on a purely mechanical transmission mechanism powered by an engine. This results in a complex structure, low precision in the coordination of the actuators, and a lack of flexibility in adjustment, ultimately leading to lower planting quality in mechanized tobacco seedling transplanting. Utility Model Content

[0003] The purpose of this utility model is to provide a self-propelled range-extended vegetable and tobacco seedling transplanter. The transplanter has a simple structure and is easy to maintain and repair. During the transplanting operation, each actuator is driven by a separate motor, and the controller can flexibly control the operating status of each motor as needed, thereby achieving precise coordination and flexible adjustment of the executable actions.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a self-propelled range-extended vegetable and tobacco seedling transplanter, including a machine frame, a walking mechanism, a seedling feeding mechanism, a seedling planting mechanism, a power assembly, and a controller. The machine frame is mounted on the walking mechanism and can be adjusted vertically and positioned relative to the walking mechanism. The seedling feeding mechanism, seedling planting mechanism, power assembly, and controller are all mounted on the machine frame. The seedling feeding mechanism includes several seedling feeding cylinders evenly spaced along the circumference. The bottom of the seedling feeding cylinders can automatically open at the seedling feeding position. The seedling planting mechanism includes a seedling receiving guide hopper, a well-type seedling nozzle, and a seedling planting drive actuator. The seedling receiving guide hopper is located at the seedling feeding position. Directly below, the well-type seedling nozzle is located at the lower part of the seedling receiving guide hopper, and the seedling outlet of the seedling receiving guide hopper is connected to the seedling inlet of the well-type seedling nozzle. The upper part of the well-type seedling nozzle is cylindrical and the lower part is conical. The well-type seedling nozzle is composed of two seedling planting halves that are symmetrically distributed on the left and right. The seedling driving actuator can drive the well-type seedling nozzle to move up and down reciprocally and can sequentially realize the opening of the bottom of the well-type seedling nozzle at the seedling planting position and the closing at the seedling feeding position. The power system provides electrical energy to the walking mechanism, the seedling feeding mechanism, the seedling planting mechanism and the controller. The controller can control the operation of the walking mechanism, the seedling feeding mechanism, the seedling driving actuator and the power system.

[0005] Preferably, the seedling planting drive assembly includes a first drive motor, a transmission chain, a moving frame, and an opening and closing transmission assembly. The transmission chain is vertically rotatably mounted on the front side of a first support plate of the machine frame. The first drive motor drives the transmission chain to rotate. A connecting rod is mounted on the transmission chain, and the connecting rod passes through a first elongated hole on the left and right sides of the moving frame. A first mounting plate is fixedly mounted on the lower front side of the moving frame. The well-type seedling nozzle is mounted on the lower part of the first mounting plate, and the seedling guide bucket is mounted on the upper part of the first mounting plate. The opening and closing transmission assembly is mounted on the inner front side of the moving frame. The opening and closing transmission assembly realizes the opening and closing of the bottom of the well-type seedling nozzle through the drive of the connecting rod. The first drive motor is electrically connected to the controller.

[0006] Furthermore, the opening and closing transmission assembly includes a rotating connecting rod, a first hinge connecting rod, and a second hinge connecting rod. A second elongated hole vertically arranged on the upper part of the rotating connecting rod is fitted onto the connecting rod. The lower part of the rotating connecting rod is rotatably fitted onto a first hinge shaft on the moving frame. A second hinge shaft is provided at the lower part of the rotating connecting rod, located to the left of the first hinge shaft. The upper outer sides of both of the two seedling planting half-nozzles are hinged to the lower part of the first mounting plate. A third hinge shaft is provided on the inner rear side of both of the two seedling planting half-nozzles. The upper ends of both the first and second hinge connecting rods are hinged to the second hinge shaft. The lower end of the first hinge connecting rod is hinged to the third hinge shaft located on the left side. The lower end of the second hinge shaft is hinged to the third hinge shaft located on the right side. The up-and-down swing of the second hinge shaft can drive the lower parts of the two seedling planting half-nozzles to close and move away from each other.

[0007] Furthermore, a connecting plate is fixedly installed on the front side of the connecting rod, and two vertically distributed movable sliders are fixedly installed on the connecting plate. The two movable sliders are respectively sleeved on a first guide rod, which is horizontally fixed on the movable frame. A positioning detection rod is vertically fixed on the upper part of the movable slider located on the upper side. A third elongated hole distributed on the left and right is provided on the upper part of the movable frame. A fourth elongated hole corresponding vertically to the third elongated hole is provided on the whole machine bracket. The upper part of the positioning detection rod passes through the fourth elongated hole. A first inductive proximity switch located on the left rear of the fourth elongated hole is provided on the whole machine bracket. The first inductive proximity switch is electrically connected to the controller.

[0008] Furthermore, the seedling feeding mechanism also includes a second drive motor, a first reduction gearbox, a rotating shaft, a rotating circular plate, and a support ring. The seedling feeding tube includes an upper cylinder and a lower cover. One side of the lower cover is hinged to the lower side of the upper cylinder. The rotating shaft is vertically rotatably mounted on the machine support. The rotating circular plate is fixedly mounted on the upper part of the rotating shaft. Six seedling feeding tubes are equally spaced along the circumference of the rotating shaft on the rotating circular plate. The rotation of the rotating circular plate allows the corresponding seedling feeding tube to be positioned at the seedling feeding station. The lower part of the rotating shaft is connected to the first reduction gearbox. The second drive motor is used to drive the first reduction gearbox to rotate. The support ring is mounted on the machine support and located below the seedling feeding tube. The support ring is in an open state at the seedling feeding station. The lower cover is closed at the lower part of the upper cylinder by supporting the lower cover. The second drive motor is electrically connected to the controller.

[0009] Furthermore, a circular detection plate is fixedly installed on the rotating shaft, and six detection blocks are arranged at equal intervals along the circumference of the rotating shaft on the outer side of the circular detection plate. The six detection blocks correspond one-to-one with the six seedling cylinders. A second inductive proximity switch for detecting the corresponding detection block is installed on the machine support. When the second inductive proximity switch detects a detection block, one of the seedling cylinders is located at the seedling placement position. The inductive proximity switch is electrically connected to the controller.

[0010] Furthermore, the walking mechanism includes a walking bracket, a third drive motor, an active walking wheel, an auxiliary walking wheel, and a second reduction gearbox. The walking bracket includes a fixed tube and two telescopic rods, which are sleeved on both ends of the fixed tube and can move and be positioned left and right relative to the fixed tube. A support frame is provided at the outer end of the telescopic rods. The active walking wheel and the auxiliary walking wheel are rotatably arranged at the lower part of each support frame. The second reduction gearbox is used to drive the active walking wheel, and the third drive motor is used to drive the second reduction gearbox. The fixed tube can move and be positioned up and down relative to the main frame, and the telescopic rods can be adjusted and positioned up and down relative to the support frame. An adjusting screw is rotatably arranged on the main frame, and a second guide rod is arranged parallel to each other on both sides of the adjusting screw. An adjusting slider is sleeved on the adjusting screw and the second guide rod. By rotating the adjusting screw, the adjusting slider can move up and down relative to the adjusting screw. The fixed tube is arranged on the adjusting slider.

[0011] Furthermore, the upper front side of the machine frame is equipped with a forward / reverse shift lever, a travel speed control knob, a start / stop button, a power switch, an emergency stop switch, an indicator light, and a seedling switch. The front vertical side wall of the machine frame is equipped with a programming operation area and a timer / counting area. The front of the machine frame is equipped with two left and right handrails, with a left turn control switch and a right turn control switch on each handrail. A seedling placement tray is provided at the top of the machine frame.

[0012] Preferably, the powertrain includes a small gasoline engine, a generator, and a battery. The small gasoline engine drives the generator to rotate. The generator is electrically connected to the battery. The controller is electrically connected to the small gasoline engine and the battery.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model has the advantages of high degree of automation, long continuous operation endurance, strong walking power, small turning radius, and flexible adjustment of operation mode.

[0015] 2. The powertrain of this utility model is a range-extended power module. The gasoline engine takes advantage of the high energy density of fuel and can generate electricity using fuel when the battery power is insufficient, thereby enabling the battery to discharge continuously. This gives the utility model a longer operating time, which is beneficial for growers to complete the centralized transplanting of seedlings during the optimal planting period. The battery charging is automatically controlled by the controller according to the battery's set power monitoring program, which makes the battery charging highly automated.

[0016] 3. Both active walking wheels are independently controlled by a motor. When walking, the two active walking wheels rotate synchronously, which makes the transplanter's walking power strong. By controlling the corresponding motor, the entire transplanter can be easily steered flexibly. By controlling the operation of the motor through the controller, the intermittent movement of the active walking wheels can be easily realized, thereby enabling precise control and flexible adjustment of the seedling spacing.

[0017] 4. The up-and-down reciprocating motion of the well-type seedling nozzle is controlled by a motor, thereby using a controller to flexibly adjust the seedling planting frequency by controlling the motor's operation. During the up-and-down reciprocating motion of the well-type seedling nozzle, it can simultaneously achieve stable opening and closing actions, thereby ensuring the smooth transplanting of seedlings. By reasonably controlling the up-and-down reciprocating frequency of the well-type seedling nozzle and the walking speed of the transplanter, the seedling transplanting efficiency can be flexibly adjusted.

[0018] 5. The transplanter has a small overall structural size, which makes it require a small turning radius. This allows the transplanter to turn around easily in a small space at the edge of the field, thereby increasing its flexible operating range.

[0019] 6. The use of an inductive proximity switch can effectively realize the initial height position of the well-type seedling nozzle and the precise control of the seedling feeding cylinder at the seedling feeding position, thereby enabling this utility model to accurately achieve the smooth transplanting of each seedling.

[0020] 7. By rationally setting the reciprocating stroke of the well-type seedling nozzle, the height difference at the top of the soil ridge at the initial position, and the overall height, well-type transplanting of tobacco seedlings can be achieved, thereby improving the survival rate of transplanted seedlings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a side view of the overall structure of this utility model;

[0024] Figure 3 This is a schematic diagram showing the connection between the fixed tube of the traveling support and the overall machine support.

[0025] Figure 4 This is a schematic diagram of the seedling planting mechanism;

[0026] Figure 5 This is a side view of the seedling planting mechanism.

[0027] Figure 6 This is a schematic diagram of the seedling planting mechanism from the bottom.

[0028] Figure 7 This is a schematic diagram of the seedling feeding mechanism;

[0029] Figure 8 for Figure 1 Enlarged view of point A in the middle;

[0030] Figure 9 for Figure 1 Enlarged view at point B in the middle;

[0031] Figure 10 for Figure 2 Enlarged view at point C;

[0032] Figure 11 for Figure 4 Enlarged view at point D;

[0033] Figure 12 for Figure 5 Enlarged view at point E in the middle;

[0034] Figure 13 for Figure 5 Enlarged view at point F;

[0035] Figure 14 for Figure 7 Enlarged view at point H;

[0036] Figure 15 This is the front view of a well-type seedling planting nozzle;

[0037] Figure 16 A schematic diagram showing the state of tobacco seedlings after they have been transplanted in a pit-like manner on a soil ridge;

[0038] In the diagram: 1. Overall support frame; 11. Adjusting screw; 111. Second guide rod; 12. First support plate; 13. Second guide rod; 14. Handrail; 141. Left turn control switch; 142. Right turn control switch; 143. Second top pressure bolt; 15. Seedling tray; 16. Handrail connecting rod; 161. Serrated edge; 2. Walking mechanism; 21. Fixed pipe; 22. Telescopic rod; 221. Adjusting plate; 222. First top pressure bolt; 23. Support frame; 24. Second gearbox; 25. Third drive motor; 26. Auxiliary walking wheel; 27. Active walking wheel; 3. Seedling feeding mechanism; 31. Seedling feeding cylinder; 311. Upper cylinder; 312. Lower cover; 32. Second drive motor; 33. First gearbox; 34. Rotating shaft; 341. Circular detection plate; 342. Detection block; 35. Rotating circular plate; 36. Support ring; 361. Arc-shaped guide plate; 4. Planting mechanism; 41. Seedling receiving guide hopper; 42. Well-type seedling nozzle; 421. Seedling half-mounting device. Mouth, 4211 Third hinge shaft, 4212 Rotating support rod, 431 First drive motor, 432 Transmission chain, 4321 Upper sprocket, 4322 Lower sprocket, 4323 Connecting rod, 433 Moving frame, 4331 First mounting plate, 4332 First hinge shaft, 4333 First oblong hole, 4334 Third oblong hole, 434 Rotating connecting rod, 4341 First hinge connecting rod, 4342 Second hinge connecting rod, 434 3 Second elongated hole, 435 Connecting plate, 436 Moving slider, 437 Positioning detection rod, 438 First guide rod, 5 Power assembly, 61 First inductive proximity switch, 62 Second inductive proximity switch, 71 Forward / backward switching lever, 72 Travel speed control knob, 73 Start / Stop button, 74 Power switch, 75 Seedling switch, 76 Indicator light, 77 Emergency stop switch, 81 Soil ridge, 811 Well-type seedling pit, 82 Tobacco seedling. Detailed Implementation

[0039] The following will describe specific embodiments and appendices. Figure 1-16 The technical solutions in the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some preferred embodiments of this utility model, and not all embodiments. Those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0040] This utility model provides a self-propelled range-extended vegetable and tobacco seedling transplanter (such as...). Figure 1 , Figure 2As shown, the transplanter includes a frame 1, a walking mechanism 2, a seedling feeding mechanism 3, a seedling planting mechanism 4, a power assembly 5, and a controller. The frame 1 is used to set up the various related structures on the transplanter while maintaining the overall structural strength of the transplanter. The frame 1 is mounted on the walking mechanism 2, and the frame 1 can be adjusted up and down and positioned relative to the walking mechanism 2. The walking mechanism 2 can drive the frame 1 to move. The seedling feeding mechanism 3, the seedling planting mechanism 4, the power assembly 5, and the controller are all mounted on the frame 1. In this specific embodiment, the controller can be a PLC controller commonly used in the field of industrial automation. The seedling feeding mechanism includes several seedling feeding cylinders 3 evenly spaced along the circumference. The bottom of the seedling cylinder 3 can automatically open at the seedling placement station. In practical applications, when the seedling cylinder 3 containing seedlings rotates and moves to the seedling placement station, the seedlings inside the seedling cylinder 3 will automatically detach from the bottom of the seedling cylinder 3 under the action of gravity. When several seedling cylinders 3 stop intermittently at the seedling placement station, intermittent seedling placement at the seedling placement station is achieved. The seedling planting mechanism 4 includes a seedling receiving guide hopper 41, a well-type seedling planting nozzle 42, and a seedling driving execution component. The seedling receiving guide hopper 41 is located directly below the seedling placement station. In practical applications, seedlings falling from the seedling placement station enter the seedling receiving guide hopper 41. The well-type seedling planting nozzle 42 is located at the lower part of the seedling receiving guide hopper 41, and the seedling receiving guide hopper 41... The seedling outlet is connected to the seedling inlet of the well-type seedling nozzle 42. Seedlings entering the seedling guide hopper 41 are directly fed into the well-type seedling nozzle 42 under gravity. To ensure stable seedling reception and guidance, the upper part of the seedling guide head 4 is square, with its length and width approximately 3cm larger than the outer diameter of the seedling feeding tube 3. The bottom outlet of the seedling guide hopper 41 is circular, and its inner diameter is smaller than the inner diameter of the inlet at the top of the well-type seedling nozzle 42. The upper part of the well-type seedling nozzle 42 is cylindrical, and the lower part is conical. In practical applications, when the well-type seedling nozzle 42 is vertically inserted into the top of a relatively moist soil mound, it forms a cone-shaped base and a cylindrical top in the soil. The seedling planting nozzle 42 is a shaped well-like structure consisting of two symmetrically distributed planting half-nozzles 421. Each planting half-nozzle 421 is composed of a semi-annular shell and a semi-conical shell, fixedly connected vertically. When the bottoms of the two planting half-nozzles 421 are closed, the seedling is received; when the bottoms of the two planting half-nozzles 421 are opened away from each other, the seedling is released, allowing it to settle smoothly in the soil well-like structure. The planting drive actuator can drive the well-like planting nozzle 42 to reciprocate up and down, and can sequentially open the bottom of the well-like planting nozzle 42 at the planting position and close it at the seedling placement position. The reciprocating movement of the well-like planting nozzle 42 enables the intermittent downward transport of seedlings.Transplanting seedlings onto the raised beds is achieved by intermittently closing and opening the well-type seedling nozzle 42. The power system provides electrical energy to the walking mechanism 2, seedling dispensing mechanism 3, seedling planting mechanism 4, and controller. The controller controls the operation of the walking mechanism 2, seedling dispensing mechanism 3, seedling driving actuator, and power system. In practical applications, by coordinating the operation logic of the walking mechanism 2, seedling dispensing mechanism 3, and seedling driving actuator with the controller, fixed-distance transplanting of seedlings onto the raised beds can be achieved, thereby realizing mechanized transplanting and improving transplanting efficiency. In practical applications, this invention can be used for transplanting vegetable seedlings such as eggplant, pepper, and tobacco seedlings.

[0041] Based on the above embodiments, the specific implementation of the seedling planting drive execution component is as follows: The seedling planting drive execution component includes a first drive motor 431, a transmission chain 432, a moving frame 433, and an opening and closing transmission component. The transmission chain 432 is vertically rotatably disposed on the front side of a first support plate 11 of the whole machine bracket 1. Specifically, an upper sprocket 4321 and a lower sprocket 4322 are disposed vertically on the front side of the first support plate 11, and the transmission chain 432 is sleeved on the upper sprocket 4321 and the lower sprocket 4322. The first drive motor 431 is used to drive the transmission chain 432 to rotate. Specifically, the first drive motor 431 is disposed on the rear side of the first support plate 11, and the first drive motor 431 drives the upper sprocket 4321 to rotate. A connecting rod 4323 is provided on the transmission chain 432. Specifically, a connecting plate can be fixedly provided on the outside of a connecting pin of the transmission chain 432, and the connecting rod 4323 is fixedly provided on the connecting plate. The connecting rod 4323 passes through a first elongated hole 4333 provided on the left and right sides of the moving frame 433. During the rotation of the transmission chain 432, the connecting rod 4323 moves up and down, and the up and down movement of the connecting rod 4323 synchronously realizes the up and down movement of the moving frame 433. When the connecting rod 4323 moves left and right with the transmission chain 432, it moves relative to the moving frame 433 within the first elongated hole 4333, so that the left and right movement of the connecting rod 4323 does not drive the moving frame 432 to move left and right. Therefore, during the reciprocating rotation of the transmission chain 432, only the up-and-down reciprocating motion of the moving frame 432 is realized. To improve the reliability of the up-and-down reciprocating motion of the moving frame 432, two second guide rods 13 are provided behind the moving frame 432. The guide plate provided at the rear of the moving frame 432 is fitted inside the corresponding second guide rod 13. The upper and lower ends of the second guide rods 13 are fixedly set on the machine support 1. The up-and-down reciprocating motion of the moving frame 432 is realized by the guiding action of the two second guide rods 13. A first mounting plate 4331 is fixedly set on the lower front side of the moving frame 432. The well-type seedling nozzle 42 is set at the lower part of the first mounting plate 4331, and the seedling receiving guide bucket 41 is set at the upper part of the first mounting plate 4331. The opening and closing transmission assembly is located inside the front side of the movable frame 42. Driven by the connecting rod 4323, the bottom of the well-type seedling nozzle 42 opens and closes. Specifically, the opening and closing transmission assembly includes a rotating connecting rod 434, a first hinged connecting rod 4341, and a second hinged connecting rod 4342. A second elongated hole 4343 vertically arranged on the upper part of the rotating connecting rod 434 is fitted onto the connecting rod 4323. The lower part of the rotating connecting rod 434 is rotatably fitted onto a first hinge shaft 4332 on the movable frame 433. In practical applications, when the connecting rod 4323 moves from one side of the upper sprocket 4321 or the lower sprocket 4322 to the other side, the upper part of the rotating connecting rod 434 moves left and right.This allows the rotating connecting rod 434 to rotate around the first hinge axis 4332. The second elongated hole 4343 ensures that the upper part of the rotating connecting rod 434 does not affect the left-right swinging of the connecting rod 4323. A second hinge axis 4344 is located to the left of the first hinge axis 4332 at the lower part of the rotating connecting rod 434. During the rotation of the rotating connecting rod 434 around the first hinge axis 4332 driven by the connecting rod 4323, the second hinge axis 4344 simultaneously rotates around the first hinge axis 4332. The outer sides of the two seedling half-nozzles 421... Each part is hinged to the lower part of the first mounting plate 4331. Specifically, a rotating support shaft 4212 is provided on the outer side of the planting half-spout 421. The rotating support shaft 4212 is rotatably mounted on the first mounting plate 4331. The rotation of the planting half-spout 421 can be realized by the rotational support of the rotating support shaft 4212. A third hinge shaft 4211 is provided on the inner rear part of each of the two planting half-spouts 421. The upper ends of the first hinge connecting rod 4341 and the second hinge connecting rod 4342 are hinged to the second hinge shaft 4344. The lower end of the first hinge connecting rod 4341... The second hinge shaft 4342 is hinged to the third hinge shaft 4211 located on the left side, and the lower end of the second hinge shaft 4342 is hinged to the third hinge shaft 4211 located on the right side. The up-and-down swinging of the second hinge shaft 4342 can cause the lower parts of the two planting half-mouths 42 to close and move away from each other. That is, through the above arrangement, within one rotation cycle of the transmission chain 432, the reciprocating up-and-down movement of the well-type planting mouth 42 can be achieved. Simultaneously, the opening and closing of the two planting half-mouths 42 can be achieved near the lower limit movement position and near the upper limit position. Specifically, when the third hinge... When shaft 4344 swings upward to its upper limit, the two seedling planting nozzles 421 close. When the third hinge shaft 4344 swings downward to its lower limit, the two seedling planting nozzles 421 open. When the two seedling planting nozzles 421 are open, the seedlings inside fall smoothly. When the two seedling planting nozzles 421 are closed, it facilitates the receiving and downward transport of seedlings. The first drive motor 431 is electrically connected to the controller, which can control the frequency of the first drive motor 431, thereby adjusting the up-and-down movement speed of the well-type seedling planting nozzle 42. The up-and-down reciprocating stroke of the well-type seedling planting nozzle 42 is determined by the vertical distribution distance and outer diameter of the upper sprocket 4321 and the lower sprocket 4322. Therefore, in practical applications, the position and outer diameter of the upper sprocket 4321 and the lower sprocket 4322 can be set according to actual needs.

[0042] Based on the above embodiments, to accurately catch seedlings falling from the seedling cylinder 3 using the well-type seedling nozzle 42, the well-type seedling nozzle 42 needs to be in a closed state. Therefore, the initial position of the connecting rod 4323 should be located at the right vertical end of the transmission chain 432. At this time, the rotating connecting rod 434 is in the right limit position of swinging to the right, and the third hinge shaft 4344 is in the upper limit position of swinging upward, so that the two seedling half nozzles 421 are in a close closed state. To facilitate the effective positioning of the connecting rod 4323 in the right vertical section of the transmission chain 432, a connecting plate 435 is fixedly installed on the front side of the connecting rod 4323. Two vertically distributed movable sliders 436 are fixedly installed on the connecting plate 435. The two movable sliders 436 are respectively sleeved on a first guide rod 438. The first guide rod 438 is horizontally fixed on the moving frame 433. A vertically fixed part is installed on the upper part of the movable slider 436. The positioning detection rod 437 has a third elongated hole 4334 distributed horizontally on the upper part of the moving frame 433, and a fourth elongated hole corresponding vertically to the third elongated hole 4334 on the whole machine bracket 1. The upper part of the positioning detection rod 437 passes through the fourth elongated hole. A first inductive proximity switch 61 is located on the left rear of the fourth elongated hole on the whole machine bracket 1. The first inductive proximity switch 61 is electrically connected to the controller. During the rotation of the transmission chain 432, the positioning detection rod 437 is synchronously driven to move vertically and horizontally. During the movement of the positioning detection rod 437, when the first inductive proximity switch 61 detects the positioning detection rod 437, it sends a detection signal to the controller. After receiving the detection signal, the controller stops the operation of the first drive motor 431, thereby realizing the initial positioning of the well-type seedling nozzle 42. To improve the initial positioning accuracy of the well-type seedling nozzle 42, the first drive motor 431 can be a stepper motor with a brake.

[0043] Based on the above embodiments, the specific implementation of the seedling feeding mechanism is as follows: The seedling feeding mechanism 3 further includes a second drive motor 32, a first reduction gearbox 33, a rotating shaft 34, a rotating circular plate 35, and a support ring 36. The seedling feeding cylinder 31 includes an upper cylinder 311 and a lower cover 312. One side of the lower cover 312 is hinged to the lower side of the upper cylinder 311. When the seedling feeding cylinder 31 rotates to the seedling feeding position, the lower cover 312 can automatically open under its own weight and the weight of the seedling, thereby allowing the seedlings in the upper cylinder 311 to fall down. The rotating shaft 34 is vertically rotatably mounted on the machine support 1, and the rotating circular plate 35 is fixedly mounted on the upper part of the rotating shaft 34. The six seedling feeding cylinders 31 are arranged along... The rotating shafts 34 are evenly spaced on the rotating circular plate 35 in the circumferential direction. The rotation of the rotating circular plate 35 allows the corresponding seedling cylinder 31 to be positioned at the seedling feeding station. The lower part of the rotating shafts 34 is connected to the first reduction gearbox 33. The second drive motor 32 drives the first reduction gearbox 33 to rotate. The support ring 36 is mounted on the machine support 1 and located below the seedling cylinder 31. The support ring 36 is open at the seedling feeding station. The support ring 36 supports the lower cover 312, enabling the lower cover 312 to close at the lower part of the upper cylinder 311. In this specific embodiment, the clockwise rotation of the rotating circular plate 35 drives the seedling cylinder 31 to rotate clockwise. During the clockwise rotation, the lower cover 312 is finally closed under the guidance and support of the support ring 36. The second drive motor 32 is electrically connected to the controller. In practical applications, the controller can realize intermittent motion control of the rotating circular plate 35 according to the angle after time, so that each seedling cylinder 31 can accurately stop at the seedling position. To further improve the accurate positioning of the seedling cylinder 31 at the seedling position, a circular detection plate 341 is fixedly set on the rotating shaft 34. Six detection blocks 342 are equally spaced along the circumference of the rotating shaft 34 on the outer side of the circular detection plate 341. The six detection blocks 342 correspond one-to-one with the six seedling cylinders 31. A device is set on the machine support 1. The second inductive proximity switch 62, which detects the corresponding detection block 342, is used to detect a detection block 342. When the second inductive proximity switch 62 detects a detection block 342, one of the seedling feeding tubes 31 is located at the seedling feeding station. The inductive proximity switch 62 is electrically connected to the controller. When the inductive proximity switch 62 detects a detection block 342, it sends a detection signal to the controller. The controller stops the operation of the second drive motor 32 based on the received detection signal. When the second drive motor 32 stops running, a seedling feeding tube 31 is precisely positioned at the seedling feeding station. After the seedling feeding tube 31 stops at the seedling feeding station, the lower cover 312 opens, allowing the seedlings in the seedling feeding tube 31 to fall directly into the seedling receiving guide hopper 41 under the action of gravity.Guided by the seedling guide head 41, the seedlings directly enter the well-type seedling nozzle 42. Once the well-type seedling nozzle 42 receives the seedlings, subsequent planting is facilitated.

[0044] Based on the above embodiments, the specific implementation of the walking mechanism is as follows: The walking mechanism 2 includes a walking bracket, a third drive motor 25, an active walking wheel 27, an auxiliary walking wheel 26, and a second reduction gearbox 24. The walking bracket includes a fixed tube 21 and telescopic rods 22. The two telescopic rods 22 are sleeved on both ends of the fixed tube 21, and the telescopic rods 22 can move left and right and be positioned relative to the fixed tube 21. Specifically, a pressing bolt for pressing the telescopic rods 22 is provided on the fixed tube 21. The telescopic rods 22 are positioned on the fixed tube 21 by pressing the telescopic rods 22 with the pressing bolts. A support frame 23 is provided at the outer end of the telescopic rods 22. Each of the support frames 23 has a drive wheel 27 and an auxiliary wheel 26 rotatably mounted on its lower part. A second reduction gearbox 24 drives the drive wheel 27, and a third drive motor 25 drives the second reduction gearbox 24. Specifically, the second reduction gearbox 24 is fixedly mounted on the lower part of the support frame 23, and the third drive motor 25 is mounted on the second reduction gearbox 24. The third drive motor 25 drives the rotation of the drive wheel 27. The fixed tube 21 can move up and down and be positioned relative to the machine frame 1, and the telescopic rod 22 can be adjusted up and down and positioned relative to the support frame 23. An adjusting screw 11 is rotatably mounted on the machine frame 1. A second guide rod 111 is arranged parallel to each other on both sides of the adjusting screw 11. An adjusting slider 28 is sleeved on the adjusting screw 11 and the second guide rod 111. By rotating the adjusting screw 11, the adjusting slider 28 can move up and down relative to the adjusting screw 11. A fixed tube 21 is set on the adjusting slider 28. Since the adjusting screw 11 is rotatably mounted on the machine support 1, and the adjusting slider 28 is connected to the fixed tube 21, rotating the adjusting screw 11 realizes the up and down adjustment of the machine support relative to the ground, thereby realizing the height adjustment of the well-type seedling nozzle 42 relative to the ground. Furthermore, in order to realize the up and down adjustment and fixed position of the telescopic rod 22 relative to the support frame 23, the following measures are taken. To further adjust the height of the seedling planting nozzle 42 relative to the ground, a vertical through slot is provided on the support frame 23, and the end of the telescopic rod 22 is fitted into the vertical through slot. Adjustment plates 221 located on the left and right sides of the support frame 23 are fitted onto the telescopic rod 22. The two sides of the adjustment plates 221 are fixed to the support frame 23 with bolts. Several threaded holes are provided on the support frame 23. By adjusting the position of the adjustment plates 221 on the support frame 23, the height of the entire machine support 1 can be adjusted. A support plate is provided on the adjustment plate 221, and a first pressing bolt 222 is provided on the support plate. The telescopic rod 22 is pressed and fixed onto the adjustment plate 221 by the first pressing bolt 222.

[0045] Based on the above embodiments, to facilitate the operation of the transplanter, the upper front side of the machine frame 1 is equipped with a forward / reverse switching lever 71, a travel speed control knob 72, a start / stop button 73, a power switch 74, an emergency stop switch 77, an indicator light 76, and a seedling switch 75. A programming operation area and a timing counter area are provided on the front vertical side wall of the machine frame 1. The forward / reverse switching lever 71, travel speed control knob 72, start / stop button 73, power switch 74, emergency stop switch 77, indicator light 76, seedling switch 75, programming operation area, and timing counter area are all electrically connected to the controller. The forward / reverse switching lever 71, travel speed control knob 72, start / stop button 73, power switch 74, emergency stop switch 77, indicator light 76, seedling switch 75, programming operation area, and timing counter area are all electrically connected to the controller. The lever 71 controls the forward, stop, and reverse movement of the walking mechanism. The walking speed control knob 72 allows for secondary speed adjustment. The start / stop button 73 starts and stops the transplanting operation. The power switch 74 connects the battery. The emergency stop switch 77 cuts off the main power in emergencies. The indicator light 76 displays the power status. The seedling switch 75 connects and disconnects the power to the first drive motor 431. The programming area allows direct control of the various actuators' operation logic, enabling coordinated operation and ensuring smooth transplanting. The timing and counting area directly displays the number of seedlings planted. The duration of each transplanter movement, controlled by adjusting the movement time and the rotation speed of the third drive motor 25, facilitates the spacing control of the seedlings. To facilitate manual adjustment of the machine's support frame 1, two left-right handrails 14 are provided at the front of the support frame 1. A left-turn control switch 141 and a right-turn control switch 142 are respectively installed on each handrail 14. The left-turn control switch 141 is located on the left handrail, and the right-turn control switch 142 is located on the right handrail. Pressing the left-turn control switch 141 or the right-turn control switch 142 cuts off the power to the corresponding left or right third drive motor 25. To achieve left or right turns, when the left turn control switch 141 or right turn control switch 142 is released, the corresponding third drive motor 25 restarts, and the machine continues to move in a straight line. To facilitate the angle adjustment of the handrail 14, a ring-shaped serration 161 is provided on the end face of the handrail connecting rod 16 connecting the machine frame 1 and the handrail 14. A serration corresponding to the serration 161 is provided on the connecting end of the handrail 14. A second pressing bolt 143 is fitted on the connecting end of the handrail 14, and the second pressing bolt 143 is threadedly connected to the handrail connecting rod 16. Tightening the second pressing bolt 143 fixes the handrail 14 on the handrail connecting rod 16. A seedling placement tray 15 is provided on the upper part of the machine frame 1. During actual operation, a certain number of seedlings are placed on the seedling placement tray 15 so that seedlings can be continuously placed into the seedling container 31 manually during transplanting.

[0046] Based on the above embodiments, the specific implementation of the powertrain is as follows: The powertrain includes a small gasoline engine, a generator, and a battery. The small gasoline engine drives the generator to rotate. The generator is electrically connected to the battery. The controller is electrically connected to the small gasoline engine and the battery. The controller has a battery charge detection module. When the controller detects that the battery charge is lower than a set value, the controller directly starts the small gasoline engine. After the small gasoline engine starts, it drives the generator to generate electricity and charge the battery. When the battery charge reaches the set detection upper limit, the controller shuts off the small gasoline engine, thereby completing the battery charging process. In this utility model, the battery provides power to all electrical components.

[0047] Since the power actuators in the walking mechanism 2, the seedling feeding mechanism 3, and the seedling planting mechanism 4 are all independently controlled by a single motor, the independent control of each motor by the controller can achieve effective coordination between the walking mechanism 2, the seedling feeding mechanism 3, and the seedling planting mechanism 4. At the same time, it facilitates the simplified design of the overall structure of the transplanter.

[0048] This utility model also provides a method for continuous transplanting of tobacco seedlings, including the aforementioned self-propelled range-extended vegetable and tobacco seedling transplanter. To facilitate the well-type transplanting of tobacco seedlings and improve their survival rate, the inner diameter of the cylindrical portion of the well-type planting nozzle 42 is set to 10cm. Simultaneously, the vertical heights of the cylindrical and conical portions of the well-type planting nozzle 42 are set to 10cm and 11cm respectively. Figure 15 The value of L1 is set to 10cm, the value of L2 is set to 11cm, and the distance of the well-type seedling nozzle 42 from the starting position to the lowest position is set to 23cm. This tobacco seedling transplanting method also includes the following steps:

[0049] S1. Move the transplanter to the starting planting end of the corresponding soil ridge 81 and adjust the position of the transplanter so that the transplanter is directly above the soil ridge 81.

[0050] S2. Position the well-cellar transplanting nozzle 42 in the initial working position, position one of the seedling feeding tubes 31 in the seedling feeding position, and at the same time, ensure that a tobacco seedling 82 has been placed in each of the remaining seedling feeding tubes 31, and place a tobacco seedling 82 in the well-cellar transplanting nozzle 42.

[0051] S3. Rotate the adjusting screw 11 to adjust the vertical height between the bottom of the well-type transplanting nozzle 42 and the soil ridge 81, so that the bottom of the well-type transplanting nozzle 42 is 5cm away from the top of the soil ridge 81; the tobacco seedlings are thus placed in a well-type cultivation state within the soil ridge 81. Figure 16As shown, the tobacco seedling 82 is located in the well-type seedling hole 811, and the distance L3 between the top of the tobacco seedling 82 and the top of the soil mound 81 is maintained at about 4cm. In this specific embodiment, the height of the tobacco seedling 82 is basically about 10cm. When the tobacco seedling 82 is placed in the well-type seedling nozzle 42, the distance between the bottom of the tobacco seedling 82 and the bottom of the well-type seedling nozzle 42 is about 3cm.

[0052] S4. Set the duration of each movement of the transplanter through the timer counting operation area. Here, the duration of each movement of the transplanter is set to 1.5 seconds. Use the forward / backward switching lever 71 to put the transplanter in forward movement mode.

[0053] S5. Manually press the start / stop button 73 to start the transplanter;

[0054] S6. The controller starts the first drive motor 431, which drives the well-type transplanting nozzle 42 to complete a reciprocating up-and-down motion. During the up-and-down motion of the well-type transplanting nozzle 42, the tobacco seedlings 82 inside it are transplanted into the soil ridge 81. During the downward movement of the well-type transplanting nozzle 42 by 23cm, the well-type transplanting nozzle 42 initially remains in a closed downward movement state, so that it can smoothly penetrate into the soil ridge 81. As the connecting rod 4323 continues to descend vertically, the well-type transplanting nozzle 42 continues to move vertically into the soil ridge 81. As the connecting rod 4323 begins to rotate around the lower sprocket 4322, the descent speed of the pit-type transplanting nozzle 42 slows down, and the two transplanting half-nozzles 421 begin to open slowly. When the connecting rod 4323 moves directly below the lower sprocket 4322, the pit-type transplanting nozzle 42 moves downward to its limit position. At this point, the pit-type transplanting nozzle 42 is inserted into the soil mound 81 to a depth of about 18cm. Simultaneously, the tobacco seedling 82 has not yet detached from the pit-type transplanting nozzle 42. With the reverse upward movement of the connecting rod 4323... As the two seedling spouts 421 continue to open, the tobacco seedlings 82 fall out of the well-type transplanting spouts 42. Before the seedlings 82 fall out, the opening action of the seedling spouts 421 has a certain agitating effect on the soil, causing some soil to flow to the area below the seedlings 82. After the seedlings 82 have completely fallen out, the bottom of the seedlings 82 is about 3-4 cm deep into the soil from the lower limit of the well-type transplanting spouts 42. Consequently, the top of the seedlings 82 is about 4-5 cm away from the top of the soil mound 81, thus effectively achieving the desired seedling growth. 82. Well-cellar transplanting: After the well-cellar transplanting nozzle 42 is inserted into the soil mound 81, the upper diameter of the well-cellar seedling hole 811 formed by it is about 10cm. Because the soil is relatively moist, even if the bottom of the seedling half nozzle 421 has a flexing effect on the side wall soil of the well-cellar seedling hole 811 during the process of the well-cellar seedling nozzle 42 opening and moving upward, the entire well-cellar seedling hole 811 will not be completely filled by the soil. Therefore, there is no situation where the tobacco seedling 82 is completely submerged by the soil, so that the well-cellar transplanting of tobacco seedling 82 can be carried out smoothly.

[0055] S7. After the well-type transplanting nozzle 42 completes one up-and-down reciprocating motion, the controller starts the second drive motor 32 to make the circular rotating plate 35 rotate. After the circular rotating plate 35 rotates 60 degrees clockwise, the rotation of the second drive motor 32 stops, thereby realizing the placement of tobacco seedlings 82 in the corresponding seedling tube 31 into the well-type transplanting nozzle 42. After the second drive motor 32 stops rotating, the tobacco seedlings 82 are manually and synchronously placed back into the seedling tube 31, which has been sealed at the bottom and is empty inside.

[0056] S8. When the second drive motor 32 stops rotating, the controller starts the third drive motor 25 according to the internally set walking control program. After the third drive motor 25 runs continuously for a set time of 1.5 seconds, the controller stops the operation of the third drive motor 25.

[0057] S9. Repeat steps S6-S8 in sequence to achieve continuous transplanting of tobacco seedlings 82 on a soil ridge 81.

[0058] In this utility model, "upper", "lower", "front", "back", "left", and "right" are all relative positions used to facilitate the description of positional relationships, and therefore cannot be understood as absolute positions as limitations on the scope of protection.

[0059] Except for the technical features described in the specification, all other technologies are known to those skilled in the art.

[0060] The preferred embodiments and examples of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments and examples. For those skilled in the art, several improvements and modifications can be made without departing from the concept of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A self-propelled range-extended vegetable and tobacco seedling transplanter, characterized in that, The system includes a frame, a walking mechanism, a seedling feeding mechanism, a seedling planting mechanism, a power assembly, and a controller. The frame is mounted on the walking mechanism and is adjustable in height and position relative to the walking mechanism. The seedling feeding mechanism, seedling planting mechanism, power assembly, and controller are all mounted on the frame. The seedling feeding mechanism includes several seedling feeding cylinders evenly spaced along a circumference. The bottom of each seedling feeding cylinder automatically opens at the feeding position. The seedling planting mechanism includes a seedling receiving guide hopper, a well-type seedling planting nozzle, and a seedling planting drive assembly. The seedling receiving guide hopper is positioned directly below the feeding position, and the well-type seedling planting nozzle is positioned at the bottom of the well-type seedling planting nozzle. The lower part of the seedling guide hopper, and the seedling outlet of the seedling guide hopper is connected to the seedling inlet of the well-type seedling nozzle. The upper part of the well-type seedling nozzle is cylindrical and the lower part is conical. The well-type seedling nozzle is composed of two seedling half-nozzles that are symmetrically distributed on the left and right. The seedling driving execution component can drive the well-type seedling nozzle to move up and down reciprocally and can sequentially realize the opening of the bottom of the well-type seedling nozzle at the seedling feeding position and the closing at the seedling planting position. The power system provides electrical energy to the walking mechanism, seedling feeding mechanism, seedling planting mechanism and controller. The controller can control the operation of the walking mechanism, seedling feeding mechanism, seedling driving execution component and power system.

2. The self-propelled range-extended vegetable and tobacco seedling transplanter according to claim 1, characterized in that, The seedling planting drive assembly includes a first drive motor, a transmission chain, a moving frame, and an opening and closing transmission assembly. The transmission chain is vertically rotatably mounted on the front side of a first support plate of the machine frame. The first drive motor drives the transmission chain to rotate. A connecting rod is mounted on the transmission chain, passing through a first elongated hole on the left and right sides of the moving frame. A first mounting plate is fixedly mounted on the lower front side of the moving frame. The well-type seedling nozzle is mounted on the lower part of the first mounting plate, and the seedling guide bucket is mounted on the upper part of the first mounting plate. The opening and closing transmission assembly is located on the inner front side of the moving frame. The opening and closing transmission assembly realizes the opening and closing of the bottom of the well-type seedling nozzle through the drive of the connecting rod. The first drive motor is electrically connected to the controller.

3. The self-propelled range-extended vegetable and tobacco seedling transplanter according to claim 2, characterized in that, The opening and closing transmission assembly includes a rotating connecting rod, a first hinge connecting rod, and a second hinge connecting rod. A second elongated hole vertically arranged on the upper part of the rotating connecting rod is fitted onto the connecting rod. The lower part of the rotating connecting rod is rotatably fitted onto a first hinge shaft on the moving frame. A second hinge shaft is provided at the lower part of the rotating connecting rod, located to the left of the first hinge shaft. The upper outer sides of the two seedling half-nozzles are hinged to the lower part of the first mounting plate. A third hinge shaft is provided on the inner rear side of the two seedling half-nozzles. The upper ends of the first and second hinge connecting rods are hinged to the second hinge shaft. The lower end of the first hinge connecting rod is hinged to the third hinge shaft located on the left side. The lower end of the second hinge shaft is hinged to the third hinge shaft located on the right side. The up-and-down swing of the second hinge shaft can drive the lower parts of the two seedling half-nozzles to close and move away from each other.

4. The self-propelled range-extended vegetable and tobacco seedling transplanter according to claim 3, characterized in that, A connecting plate is fixedly installed on the front side of the connecting rod. Two vertically distributed movable sliders are fixedly installed on the connecting plate. The two movable sliders are respectively sleeved on a first guide rod. The first guide rod is horizontally fixed on the movable frame. A positioning detection rod is vertically fixed on the upper part of the movable slider. A third elongated hole is provided on the upper part of the movable frame. A fourth elongated hole is provided on the whole machine bracket, corresponding vertically to the third elongated hole. The upper part of the positioning detection rod passes through the fourth elongated hole. A first inductive proximity switch is provided on the whole machine bracket, located to the left rear of the fourth elongated hole. The first inductive proximity switch is electrically connected to the controller.

5. The self-propelled range-extended vegetable and tobacco seedling transplanter according to claim 3, characterized in that, The seedling feeding mechanism further includes a second drive motor, a first gearbox, a rotating shaft, a rotating circular plate, and a support ring. The seedling feeding tube includes an upper cylinder and a lower cover. One side of the lower cover is hinged to the lower side of the upper cylinder. The rotating shaft is vertically rotatably mounted on the machine support. The rotating circular plate is fixedly mounted on the upper part of the rotating shaft. Six seedling feeding tubes are evenly spaced along the circumference of the rotating shaft on the rotating circular plate. The rotation of the rotating circular plate allows the corresponding seedling feeding tube to be positioned at the seedling feeding station. The lower part of the rotating shaft is connected to the first gearbox. The second drive motor drives the first gearbox to rotate. The support ring is mounted on the machine support and located below the seedling feeding tube. The support ring is in an open state at the seedling feeding station. The lower cover is closed at the lower part of the upper cylinder by supporting the lower cover. The second drive motor is electrically connected to the controller.

6. The self-propelled range-extended vegetable and tobacco seedling transplanter according to claim 5, characterized in that, A circular detection plate is fixedly installed on the rotating shaft. Six detection blocks are arranged at equal intervals along the circumference of the rotating shaft on the outer side of the circular detection plate. The six detection blocks correspond one-to-one with the six seedling tubes. A second inductive proximity switch for detecting the corresponding detection block is installed on the machine support. When the second inductive proximity switch detects a detection block, one of the seedling tubes is located at the seedling station. The inductive proximity switch is electrically connected to the controller.

7. The self-propelled range-extended vegetable and tobacco seedling transplanter according to claim 5, characterized in that, The walking mechanism includes a walking bracket, a third drive motor, a driving wheel, an auxiliary driving wheel, and a second reduction gearbox. The walking bracket includes a fixed tube and two telescopic rods. The two telescopic rods are sleeved on both ends of the fixed tube and can move left and right and be positioned relative to the fixed tube. A support frame is set at the outer end of the telescopic rod. The driving wheel and the auxiliary driving wheel are rotatably arranged at the lower part of each support frame. The second reduction gearbox is used to drive the driving wheel, and the third drive motor is used to drive the second reduction gearbox. The fixed tube can move up and down and be positioned relative to the main frame, and the telescopic rod can be adjusted up and down and positioned relative to the support frame. An adjusting screw is rotatably set on the main frame. A second guide rod is set parallel to each other on both sides of the adjusting screw. An adjusting slider is sleeved on the adjusting screw and the second guide rod. By rotating the adjusting screw, the adjusting slider can move up and down relative to the adjusting screw. The fixed tube is set on the adjusting slider.

8. The self-propelled range-extended vegetable and tobacco seedling transplanter according to claim 7, characterized in that, The upper front side of the machine frame is equipped with a forward / reverse shift lever, a travel speed control knob, a start / stop button, a power switch, an emergency stop switch, an indicator light, and a seedling switch. A programming operation area and a timer / counting area are provided on the vertical side wall of the front side of the machine frame. Two handrails are provided on the front of the machine frame, one on each side, with a left-turn control switch and a right-turn control switch respectively. A seedling placement tray is provided on the upper part of the machine frame.

9. The self-propelled range-extended vegetable and tobacco seedling transplanter according to claim 1, characterized in that, The powertrain includes a small gasoline engine, a generator, and a battery. The small gasoline engine drives the generator to rotate. The generator is electrically connected to the battery. The controller is electrically connected to the small gasoline engine and the battery.

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