Sweet potato seedling horizontal transplanting machine
By designing a horizontal sweet potato seedling transplanter, and utilizing rotary tillage and soil covering devices, the horizontal planting of sweet potato seedlings was achieved, solving the problem of agronomic mismatch in existing technologies and improving sweet potato yield and seedling uniformity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG SHENGLI ELECTROMECHANICAL TECH CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-21
Smart Images

Figure CN224521748U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an agricultural machinery part, and more particularly to a sweet potato seedling horizontal transplanter. Background Technology
[0002] Currently available sweet potato transplanters are mainly chain-clamp transplanters and finger-clamp transplanters. Agronomically, transplanting is done at the top of the ridge, using a boat-bottom planting method, either straight or oblique. Straight and oblique planting methods result in excessively large tubers and uneven tuber shapes; the boat-bottom planting method is unsuitable for dense planting, affecting the overall sweet potato yield. Horizontal planting produces a large number of uniformly sized tubers, making it particularly suitable for fresh-eating sweet potatoes, and horizontal oblique planting results in a high survival rate for the seedlings. Utility Model Content
[0003] To overcome the problem of mismatch between agricultural machinery and agronomy in existing technologies, where sweet potato is transplanted horizontally or obliquely in some areas but existing machine transplanting methods cannot meet the requirements, this utility model provides a sweet potato seedling horizontal transplanter, including a frame with rear wheels, a rotary tillage and ridging device at the front of the frame, a seedling delivery device in the middle of the frame, and a soil covering device obliquely placed at the upper end of the frame; the soil covering device is characterized by including an obliquely placed soil covering channel, a lifting chain plate mechanism for lifting soil located on one side of the soil covering device, and a transmission device that drives the lifting chain plate mechanism through chain drive introduced from the front rotary tillage and ridging point; the soil covering channel and the rotary tillage and ridging device are connected to the rotary tillage and ridging device. The tillage and ridging device has a fixed connection on one side that can accommodate the reciprocating motion of the lifting chain plate mechanism, while the other side can accommodate the soil picked up by the lifting chain plate mechanism to slide freely. The lifting chain plate mechanism includes a pair of L-shaped chains with ear plates and an arc-shaped plate fixedly connected to the ear plates on the L-shaped chains. The transmission device is a power transmission mechanism led out from the rotary tillage and ridging device through a synchronous gear and a chain transmission mechanism. The soil covering device is used to transport part of the soil collected by the rotary tillage and ridging device to the highest point of the soil covering channel through the lifting chain plate mechanism in the soil covering channel. Then, the soil leaves the lifting chain plate mechanism, slides down in the soil covering channel, and covers the sweet potato seedlings transported to the ground, realizing the horizontal transplanting of sweet potato seedlings.
[0004] Preferably, the seedling delivery device is triangular, including a seedling delivery bracket, a pair of conveyor belts, a drive motor, a set of drive wheels and three sets of transition wheels horizontally paired on the seedling delivery frame, a pair of driven wheels obliquely positioned below the drive wheels, each set of conveyor belts sleeved on the corresponding drive wheel, transition wheel, and driven wheel, the two ends of the drive wheel being gear-shaped, the conveyor belt having two sets of holes evenly distributed on it, the conveyor belt meshing with the drive wheel, the drive wheel being connected to the motor via a drive shaft, and partitions evenly distributed on the conveyor belt. Preferably, in the seedling delivery device, a pair of baffles are provided in the parallel direction connecting the drive wheel and the driven wheel, forming a seedling delivery channel with the corresponding conveyor belt, through which the sweet potato seedlings enter the ground.
[0005] Preferably, the rotary tillage and ridging device includes a rotary tillage device and a ridging device. The ridging device includes a liftable cover plate and horizontally movable left and right side plates. The ridging shape is adjusted by adjusting the upper cover plate and the left and right side plates.
[0006] Preferably, the set of drive wheels is located on the drive shaft, each set of transition wheels is located on the transition shaft, and the set of driven wheels is located on the driven shaft. Each set of drive wheels, transition wheels, and driven wheels can be adjusted to the position on the corresponding shaft and the position of the corresponding conveyor belt to realize single-row or double-row transplanting of sweet potato seedlings on a single ridge.
[0007] Preferably, the partitions on the conveyor belt can be evenly distributed at an angle or evenly distributed horizontally. When evenly distributed at an angle, the sweet potato seedlings are planted horizontally at an angle, and when evenly distributed horizontally, the sweet potato seedlings are planted horizontally.
[0008] Compared with the prior art, this utility model has the following advantages: 1) It accurately delivers seedlings via a motor-driven conveyor belt; 2) It achieves horizontal transplanting of sweet potato seedlings through a rotary tillage and ridging device, a seedling delivery device, and a soil covering device, integrating rotary tillage and ridging, horizontal transplanting, and soil covering into one system; 3) By adjusting the position of a set of conveyor belts and the position of the ridge plate of the rotary tillage and ridging device, it is possible to achieve single-row transplanting of sweet potato seedlings on a single ridge or double-row transplanting on a large ridge. Attached Figure Description
[0009] Figure 1 3D schematic diagram of the whole machine
[0010] Figure 2 Schematic diagram of ridging device
[0011] Figure 3 Schematic diagram of soil covering device
[0012] Figure 4 Schematic diagram of seedling delivery device (excluding conveyor belt)
[0013] Figure 5 Schematic diagram of seedling delivery device (including conveyor belt)
[0014] 1-Frame 101-Walking Wheel 102-Pressure Wheel
[0015] 2-Rotary tillage and ridging device 21-Rotary tillage device 22-Ridging device 221-Top cover plate 222-Left side plate 223-Right side plate 224-Left cover plate 225-Right cover plate
[0016] 3-Soil covering device; 31-Soil covering channel; 32-Lifting chain plate mechanism; 33-1-L-shaped chain; 32-2-Arc plate
[0017] 4-Seedling feeding device, 411-Conveyor belt, 401-Seedling feeding bracket, 402-Drive wheel, 403-Drive shaft, 404-Transition wheel, 405-Transition shaft, 406-Driven wheel, 407-Driven shaft, 408-Drive motor, 411-1 Partition plate Detailed Implementation
[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.
[0019] This application provides a sweet potato seedling horizontal transplanting machine.
[0020] like Figure 1 The sweet potato seedling horizontal transplanter shown includes a frame 1, a rotary tillage and ridging device 2 at the front end of the frame 1, the front end of the rotary tillage and ridging device 2 can be connected to the tractor via a three-point suspension, the middle part is the rotary tillage device 21, and the rear part is the ridging device 22. The ridging shape at the rear of the ridging device 22 can be adjusted. The ridging device 22 can achieve ridging shape adjustment through an adjustable upper cover plate 221, left side plate 222, and right side plate 223. Nuts are provided on the left and right sides of the top cover plate 221. The height is adjusted by screws 212 at the rear of the rotary tillage device 21. The left and right side plates are wing-shaped with U-shaped grooves at their mounting parts. The left and right side plates are adjusted on the rotary tillage device 21 by the nuts. Grooves are provided at the flanges of the left and right side plates to facilitate the lowering of the top cover plate 221 and insertion of its bottom outer side onto the left and right cover plates. A pair of U-shaped grooves are provided on the left and right sides of the outer surface of the bottom of the top cover plate 21. The left cover plate 224 and the right cover plate 225 are movably connected within the U-shaped grooves. When the top cover plate is adjusted upwards, the left and right cover plates move inwards, and the left and right side plates also move inwards, resulting in a high and narrow ridge. Conversely, the ridge is short and wide. The rear of the rotary tillage and ridging device 2 is fixedly connected to the frame. A pair of traveling wheels 101 are provided at the rear of the frame, with a press wheel 102 connected in the middle. The press wheel 102 is adjusted to the ground height by bolts.
[0021] The frame 1 has a seedling feeding device 4 in the middle. The seedling feeding device is triangular and includes a set of conveyor belts 411, a seedling feeding bracket 401, and several connecting shafts at the upper end of the seedling feeding bracket 401. The upper side is the drive shaft 403, and the rest are transition shafts 405. The drive shaft 403 is movably connected to a set of drive wheels 402. There are 3 sets of transition shafts, and each set is connected to a pair of transition wheels 404. The lower end of the seedling feeding bracket 401 has a driven shaft 407, and the driven shaft 407 is connected to a pair of driven wheels 406. The two ends of the drive wheel 402 are gear-shaped. The drive shaft 403 is movably connected to the drive motor 408. The drive shaft 403 on the drive wheel 402 is connected to the drive motor 408. There are two conveyor belts 411 in a set, which are respectively parallelly mounted on the drive wheel 402, the transition wheel 404 and the driven wheel 406. The drive motor 408 drives the conveyor belt 411 to rotate. Each set of drive wheels 402, transition wheels 404, and driven wheels 406 can adjust their spacing by adjusting the position of the set screws on their corresponding shafts, thereby adjusting the position of the conveyor belts accordingly. If the two conveyor belts 411 are close together, single-row transplanting can be performed on a single ridge; if the two conveyor belts 411 are far apart, double-row transplanting on a single ridge can be performed. At least two sets of square holes are evenly distributed on each conveyor belt 411. These square holes mesh with gears on the drive wheels 402. A partition 411-1 is provided between the square holes. The partition 411-1 is horizontally arranged for horizontal transplanting of sweet potato seedlings, while the partition 411-1 is angled for angled transplanting. A pair of baffles 409 are provided at the front end of the seedling delivery bracket 401. The baffles are fixed to the seedling delivery bracket 401 with bolts, and their positions on the seedling delivery bracket 401 can be adjusted using the bolts. The baffle 409 is parallel to the conveyor belt that is sleeved between the drive wheel 402 and the driven wheel 406, forming a seedling delivery channel. The sweet potato seedlings enter the bottom of the secondary channel and fall freely to the ground.
[0022] Located above the seedling delivery device 4 and connected to the front rotary tillage and ridging device is the soil covering device 3. The soil covering device 3 includes a soil covering channel 31 and a lifting chain plate mechanism 32. The lifting chain plate mechanism 32 is located on one side of the soil covering channel 31 that is fixed to the rotary tillage and ridging device 2, and the rest is a soil block slide. The lifting chain plate mechanism 32 includes an upper shaft that is located at the upper end of the soil covering channel and connects to two sprockets, a lower shaft that is located at the lower end of the soil covering channel and connects to the sprockets, a pair of L-shaped chains 33-1 with ear plates sleeved on the sprockets, and an arc plate 32-2 fixedly connected to the L-shaped chain 32-1. During the reciprocating motion, the L-shaped chain 32-1 lifts the soil on the arc plate 32-2 to the top of the soil covering channel 31. The soil blocks enter the soil block slide and reach the transplanted sweet potato seedlings under the action of the slide and free fall for soil covering. Part of the lower shaft is inside the soil covering channel 31, and another part is connected to the sprocket of the rotary tillage and ridging device 2 via a chain drive. The rotary tillage and ridging device 2 transmits power to the sprockets of the upper and lower shafts of the lifting chain plate mechanism 32 through a two-stage chain drive.
[0023] Seats (not shown) are provided on the left and right sides of the frame 1 for personnel to place seedlings, and the upper support of the frame 1 is used to place sweet potato seedling trays.
[0024] One specific implementation of this application involves selecting the conveyor belt and adjusting the entire machine according to sweet potato agronomic requirements.
[0025] Single-row, single-ridge sweet potato seedling transplanting: The machine is connected to a tractor. According to agronomic requirements, the two conveyor belts are adjusted to the middle, and the corresponding baffles are also adjusted to be parallel to the conveyor belts. The front rotary tiller and ridging machine adjusts the ridging components. Workers sit on the frame to place the seedlings. When placing the seedlings on the left and right sides, the sweet potato seedlings are positioned on the two baffles on the two conveyor belts. The motor drives the conveyor belts to deliver the seedlings. After the seedlings land, the soil covering device, carrying the soil collected by the rotary tiller and ridging device, is transported to the rear via a chain plate for covering. The press wheel at the rear of the frame compacts the soil, thus completing the transplanting of the sweet potato seedlings. Depending on whether the planting is horizontal or oblique, the corresponding baffle of the conveyor belt is selected.
[0026] Single-ridge double-row sweet potato seedling transplanting: The entire machine is connected to the tractor. According to agronomic requirements, the two conveyor belts are adjusted to both sides, and the corresponding baffles are also adjusted to be parallel to the conveyor belts. The front rotary tiller is adjusted to a wide-ridge configuration. The operator sits on the machine frame to place the seedlings. The seedlings placed on the left and right sides are positioned on their respective conveyor belts. The motor drives the conveyor belts to deliver the seedlings. After the sweet potato seedlings land, the soil covering device, carrying the soil collected by the rotary tiller, is transported to the rear via a chain plate for covering. The press wheel at the rear of the machine compacts the soil, thus completing the transplanting of the sweet potato seedlings. Depending on whether the planting is horizontal or oblique, the corresponding baffle of the conveyor belt is selected.
[0027] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of the invention. In addition to the above embodiments, this utility model may have other implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.
Claims
1. A sweet potato seedling horizontal transplanter, comprising a frame with rear wheels, a rotary tillage and ridging device at the front of the frame, a seedling delivery device in the middle of the frame, and a soil covering device obliquely positioned at the upper end of the frame; characterized in that... The covering device includes an inclined covering channel, a lifting chain plate mechanism located on one side of the covering device for lifting soil, and a transmission device that drives the lifting chain plate mechanism from the front rotary tillage and ridging point via chain drive. The side of the covering channel that is fixedly connected to the rotary tillage and ridging device can accommodate the reciprocating motion of the lifting chain plate mechanism, while the other side can accommodate the soil picked up by the lifting chain plate mechanism to slide freely. The lifting chain plate mechanism includes a pair of L-shaped chains with ear plates and an arc-shaped plate fixedly connected to the ear plates on the L-shaped chains. The transmission device is a power transmission mechanism that is led out from the rotary tillage and ridging device via synchronous gears and chain drive mechanism. The covering device is used to transport part of the soil collected by the rotary tillage and ridging device to the highest point of the covering channel through the lifting chain plate mechanism in the covering channel. Then, the soil leaves the lifting chain plate mechanism, slides down in the covering channel, and covers the sweet potato seedlings transported to the ground, realizing the horizontal transplanting of sweet potato seedlings.
2. The sweet potato seedling horizontal transplanter according to claim 1, characterized in that... The seedling delivery device is triangular in shape and includes a seedling delivery bracket, a pair of conveyor belts, a drive motor, a set of drive wheels and three sets of transition wheels arranged horizontally in pairs on the seedling delivery frame, a pair of driven wheels obliquely positioned below the drive wheels, each set of conveyor belts being sleeved on the corresponding drive wheel, transition wheel and driven wheel, the two ends of the drive wheel being gear-shaped, the conveyor belt having two sets of holes evenly distributed on it, the conveyor belt meshing with the drive wheel, the drive wheel being connected to the motor through a drive shaft, and partitions evenly distributed on the conveyor belt.
3. The sweet potato seedling horizontal transplanter according to claim 2, characterized in that... In the seedling delivery device, a pair of baffles are provided in the parallel direction connecting the drive wheel and the driven wheel, forming a seedling delivery channel with the corresponding conveyor belt, through which sweet potato seedlings enter the ground.
4. The sweet potato seedling horizontal transplanter according to claim 1, characterized in that... The rotary tillage and ridging device includes a rotary tillage device and a ridging device. The ridging device includes a liftable cover plate and horizontally movable left and right side plates. The ridging shape is adjusted by adjusting the upper cover plate and the left and right side plates.
5. The sweet potato seedling horizontal transplanter according to claim 2, characterized in that... The set of drive wheels is located on the drive shaft, each set of transition wheels is located on the transition shaft, and the set of driven wheels is located on the driven shaft. Each set of drive wheels, transition wheels, and driven wheels can be adjusted to their corresponding positions on the shaft and to the corresponding positions of the conveyor belt, so as to realize single-row or double-row transplanting of sweet potato seedlings on a single ridge.
6. The sweet potato seedling horizontal transplanter according to claim 2, characterized in that... The partitions on the conveyor belt can be arranged in two ways: obliquely evenly distributed or horizontally evenly distributed. When the partitions are obliquely evenly distributed, the sweet potato seedlings are planted horizontally at an angle. When the partitions are horizontally evenly distributed, the sweet potato seedlings are planted horizontally.