A compact reel-type sweet potato seedling transplanter

Abstract

The present invention discloses a compact reel-type sweet potato seedling transplanter, which comprises a main frame, a rotary tillage and ridging device, and a transplanting device; the transplanting device includes a ditch-opening mechanism, a sweet potato seedling separation mechanism, a seedling transplanting mechanism, and a soil covering mechanism; the ditch-opening mechanism includes two symmetrically arranged side plates, and a notch is formed between the two side plates; the soil covering mechanism includes two soil covering wheels arranged in a V-shaped layout; the seedling transplanting mechanism includes two clamping plates arranged in a V-shaped layout; a part of the clamping plate is placed in the V-shaped space between the two soil covering wheels; the clamping plate is located above the rear end of the notch; when the sweet potato seedling separation mechanism operates, the sweet potato seedlings in the seedling tray move downward along a vertical path, and the vertical path is located above the front side of the notch. In the present invention, by re-layoutting the ditch-opening mechanism, the sweet potato seedling separation mechanism, the seedling transplanting mechanism, and the soil covering mechanism, the overall length of the machine tool is greatly reduced, the compactness is high, the flexibility is good, and the operation stability is good.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and particularly relates to a compact tape-type sweet potato seedling transplanter. Background Art

[0002] A sweet potato seedling transplanter is a farm tool for large-scale planting of sweet potatoes. In the prior art, the applicant's prior applications CN113455153A and CN113475205A disclose a solution for transplanting sweet potatoes through a tape-type seedling tray. In this solution, the tapes in the sweet potato seedling tray move successively, and the sweet potato seedlings are separated. Then, the sweet potato seedlings are further conveyed obliquely downward to the trench opened by the trenching mechanism through a feeding mechanism composed of two groups of belts, and the soil covering mechanism is used for soil covering. In this solution, the sweet potato seedlings are transplanted in the front-back direction, resulting in an overly long transplanting length of the sweet potato seedlings, which not only causes the overall length of the machine to be too long and the flexibility to be poor, but also the sweet potato seedlings are prone to deviation during long-distance transportation, resulting in poor transplanting stability. Patent CN218411694U provides a bare seedling transplant test bench, which provides a solution for transplanting sweet potato seedlings through two clamping disks, but only gives the test method and does not give a method for specifically applying the clamping disks to a sweet potato transplanter to save installation space, which is the main technical problem to be solved in this application. In addition, in this patent, if the clamping disk is made of metal, there are problems such as limited deformation and uneven clamping force on the sweet potato seedlings during transplantation. If it is made of materials such as rubber, there are also situations where the material is too soft, the clamping force is small, and the transplanting effect is unstable. Summary of the Invention

[0003] Object of the Invention: In order to overcome the deficiencies in the prior art, the present invention provides a compact tape-type sweet potato seedling transplanter with a small volume and good transplanting stability.

[0004] Technical Solution: To achieve the above object, a compact tape-type sweet potato seedling transplanter of the present invention includes a main frame, a rotary tillage and ridging device, and a transplanting device; the transplanting device includes a trenching mechanism, a sweet potato seedling separation mechanism, a seedling transplanting mechanism, and a soil covering mechanism;

[0005] The sweet potato seedling separation mechanism can separate the tape from the sweet potato seedlings;

[0006] The trenching mechanism includes two symmetrically arranged side plates, and a notch that penetrates up and down and is open at the rear end is formed between the two side plates, and the front ends of the two side plates are connected and closed to form a cutting edge;

[0007] The soil covering mechanism includes two soil covering wheels arranged in a V-shaped layout;

[0008] The seedling transplanting mechanism includes two clamping disks arranged in a V-shaped layout, and the edges of the clamping disks can be deformed;

[0009] A part of the clamping disk is placed in the V-shaped space between the two soil covering wheels, and the front end of the clamping disk extends outside the V-shaped space; the clamping disk is located above the rear end of the notch; when the sweet potato seedling separation mechanism operates, the sweet potato seedlings in the seedling tray move downward along a vertical path, and the vertical path is located above the front side of the notch.

[0010] Further, the rear end of the side plate has a part extending into the V-shaped space.

[0011] Further, the sweet potato seedling separation mechanism includes a seedling tray rotating shaft, guiding wheel assemblies installed on both sides directly below the seedling tray rotating shaft, and a tape winding rotating shaft.

[0012] Further, the front half of the side plate has an upward extension part, and a trapezoidal space with a wider upper part and a narrower lower part is formed between the two upward extension parts corresponding to the two side plates;

[0013] The guiding wheel assembly includes a lower guiding wheel placed in the trapezoidal space and an upper guiding wheel placed outside the trapezoidal space; the lower guiding wheel is located at the very front end of the clamping disk; the tape in the seedling tray passes through the lower guiding wheel and the upper guiding wheel in sequence and then winds around the tape winding rotating shaft.

[0014] Further, the upper end of the upward extension part has a flanging part connecting to the main frame.

[0015] Further, the clamping disk includes a metal disk, and a circle of through holes are formed on the metal disk, dividing the metal disk into two parts, a main disk body located inside and an outer edge part located outside. A soft ring is installed inside the outer edge part.

[0016] Further, the clamping disk includes a rigid inner disk body and an outer ring part concentrically arranged with the inner disk body and located on the periphery of the inner disk body. The outer ring part is made of rubber; the two outer ring parts corresponding to the two clamping disks have clamping parts that are in contact with each other; the seedling transplanting mechanism further includes a holding frame; the holding frame has a first rod part placed outside the clamping part and a second rod part placed inside the opposite side part of the outer ring part located at the clamping part; the two holding frames corresponding to the two clamping disks can be elastically opened and closed relative to each other.

[0017] Further, a seat and a seedling tray placement rack are also installed on the main frame.

[0018] Further, the rotary tillage and ridging device includes rotary tillage knife groups arranged in sequence front and back and a ridging mechanism.

[0019] Furthermore, the ridging mechanism is a bending plate, which encloses a trapezoidal space with an open bottom, and the cross-sectional area of the front end of the trapezoidal space is large while that of the rear end is small.

[0020] Beneficial effects: The compact tape-type sweet potato seedling transplanter of the present invention rearranges the ditching mechanism, sweet potato seedling separation mechanism, seedling transplanting mechanism and soil covering mechanism, makes full use of the space between the two soil covering wheels and the space above the ditching mechanism, and the seedling transplanting path of the seedling transplanting mechanism is short. Therefore, the operation stability is good, the overall length of the machine is greatly reduced, the compactness is high, and the operation flexibility is good. Description of the Drawings

[0021] Figure 1 is the overall structure diagram of the tape-type sweet potato seedling transplanter;

[0022] Figure 2 is the three-dimensional structure diagram of the tape-type sweet potato seedling transplanter;

[0023] Figure 3 is the side view structure diagram of the transplanting device part;

[0024] Figure 4 is the first three-dimensional structure diagram of the transplanting device part;

[0025] Figure 5 is the second three-dimensional structure diagram of the transplanting device part;

[0026] Figure 6 is the structure diagram of another seedling transplanting mechanism.

[0027] In the figures: 1 - main frame; 2 - rotary tillage and ridging device; 21 - rotary tillage cutter group; 22 - ridging mechanism; 3 - transplanting device; 3A - ditching mechanism; 3B - sweet potato seedling separation mechanism; 3C - seedling transplanting mechanism; 3D - soil covering mechanism; 31 - side plate; 31a - notch; 31b - edge; 31c - upper extension; 31d - flanging part; 32 - soil covering wheel; 33 - clamping disc; 331 - metal disc; 33a - through hole; 33b - main disc body; 33c - outer edge part; 332 - soft ring; 333 - inner disc body; 334 - outer ring part; 34 - seedling tray rotating shaft; 35 - tape rotating shaft; 36 - lower guiding wheel; 37 - upper guiding wheel; 38 - holding frame; 38a - first rod part; 38b - second rod part; 39 - spring; A - seedling tray; A1 - sweet potato seedling; A2 - tape; 4 - seat; 5 - seedling tray placement rack; 6 - tractor; S - intersection position. Detailed Embodiments

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] As Figure 1The shown compact reel-type sweet potato seedling transplanter includes a main frame 1, a rotary tillage and ridging device 2, a transplanting device 3, a seat 4, and a seedling tray placement rack 5. Multiple seedling trays A can be placed on the seedling tray placement rack 5. During operation, the user can sit on the seat 4. The front end of the main frame 1 is connected to a tractor 6.

[0030] As Figure 2 shown, the rotary tillage and ridging device 2 includes a rotary tillage cutter group 21 and a ridging mechanism 22 arranged in sequence from front to back. The ridging mechanism 22 is a bent plate that encloses a trapezoidal space with an open bottom, and the cross-sectional area of the front end of the trapezoidal space is large, while the cross-sectional area of the rear end is small. In this way, during the ridging process, the ridge body can be compacted to ensure the firmness of the ridge body.

[0031] As Figures 3 - 5 shown, the transplanting device 3 includes a ditching mechanism 3A, a sweet potato seedling separation mechanism 3B, a seedling transplanting mechanism 3C, and a soil covering mechanism 3D; the sweet potato seedling separation mechanism 3B can separate the reel from the sweet potato seedlings; the ditching mechanism 3A includes two symmetrically arranged side plates 31, and a notch 31a that penetrates up and down and is open at the rear is formed between the two side plates 31, and the front ends of the two side plates 31 are connected and closed to form a cutting edge 31b; the soil covering mechanism 3D includes two soil covering wheels 32 arranged in a V-shaped layout; the seedling transplanting mechanism 3C includes two clamping plates 33 arranged in a V-shaped layout, and the edge of the clamping plate 33 can be deformed; a part of the clamping plate 33 is placed in the V-shaped space between the two soil covering wheels 32, and the front end of the clamping plate 33 extends out of the V-shaped space; the clamping plate 33 is located above the rear end of the notch 31a.

[0032] The rear end of the side plate 31 has a part that extends into the V-shaped space. Looking from the side, the rear end of the side plate 31, the outer contour of the soil covering wheel 32, and the lower end of the clamping plate 33 intersect at the same position, and this position is called the intersection position S.

[0033] The sweet potato seedling separation mechanism 3B operates based on the seedling tray A. The seedling tray A includes a reel-type tape A1. The tape A1 is composed of two tape bodies, and sweet potato seedlings are sandwiched between the two tape bodies. The sweet potato seedling separation mechanism 3B is used to gradually separate the two tape bodies so that the sweet potato seedlings are separated one by one. The sweet potato seedling separation mechanism 3B includes a seedling tray rotating shaft 34, a guiding wheel assembly installed on both sides directly below the seedling tray rotating shaft 34, and a tape rotating shaft 35; during operation, the seedling tray A is installed on the seedling tray rotating shaft 34, and the two tape bodies forming the tape A1 respectively bypass the corresponding guiding wheel assemblies on both sides and then wind around the corresponding tape rotating shafts 35. The sweet potato seedlings A1 in the seedling tray A on the seedling tray rotating shaft 34 move downward along a vertical path, and the vertical path is located above the front side of the notch 31a.

[0034] When performing the transplanting function, the rotary tillage and ridging device 2 tills the ground and forms ridges on the ground. Then, on the one hand, the ditching mechanism 3A digs planting ditches on the ridges. On the other hand, the sweet potato seedling separating mechanism 3B gradually strips the sweet potato seedlings A1 in the seedling tray A. The stripped sweet potato seedlings are clamped by two clamping disks 33. After the clamping disks 33 clamp the sweet potato seedlings to the above-mentioned intersection position S and release them, since the rear end of the side plate 31 has a part extending into the V-shaped space, during the process of the clamping disks 33 transferring the sweet potato seedlings, the soil is separated on the outside and will not hinder the clamping disks 33 from transferring the sweet potato seedlings. The rotating action of the clamping disks 33 can turn the horizontally placed sweet potato seedlings A1 into a vertical position, so that the roots of the sweet potato seedlings A1 can enter the ditch. After the clamping disks 33 release the sweet potato seedlings, since there is basically no longer any obstruction by the side plate 31 after the intersection position S, after the roots of the sweet potato seedlings A1 enter the ditch, the soil covering wheel 32 immediately covers the soil.

[0035] In the above structure, most of the clamping disk 33 (more than half) is placed in the V-shaped space, greatly improving the structural compactness, effectively reducing the occupied space of the mechanism, making the overall sweet potato seedling transplanter smaller, lighter, and much more flexible.

[0036] Preferably, the front half of the side plate 31 has an upward extension 31c. A trapezoidal space with a wider upper part and a narrower lower part is formed between the two upward extensions 31c corresponding to the two side plates 31. The guiding wheel assembly includes a lower guiding wheel 36 placed in the trapezoidal space and an upper guiding wheel 37 placed outside the trapezoidal space. The lower guiding wheel 36 is located at the very front end of the clamping disk 33. The belt in the seedling tray A passes through the lower guiding wheel 36 and the upper guiding wheel 37 in sequence and then winds around the belt winding shaft 35.

[0037] With this structure, the overall layout of the sweet potato seedling separating mechanism 3B is vertical. Compared with the front-back layout method in the applicant's previous application, it can significantly save space, reduce the front-back length of the machine tool, make the volume of the machine smaller and more compact. When the sweet potato seedling separating mechanism 3B performs the operation of stripping the sweet potato seedlings A1, the belt winding shaft 35 rotates actively, and its traction on the belt can drive the seedling tray A to rotate followingly.

[0038] Preferably, the upper end of the upward extension 31c has a flanging part 31d connecting to the main frame 1.

[0039] The above-mentioned upward extension 31c can, on the one hand, protect the guiding wheel assembly, preventing sundries such as tree roots in the soil from hitting the guiding wheel assembly or getting entangled with the belt. On the other hand, since the upward extension 31c is gradually turned outwards from bottom to top, it can block the turned-up soil outwards and prevent the soil from turning up into the ditch during ditching. Thirdly, it can facilitate the fixed installation of the ditching mechanism 3A.

[0040] In the first embodiment, as Figures 3 - 5 shown, the clamping disc 33 includes a metal disc 331, and a ring of through holes 33a are formed on the metal disc 331. The through holes 33a divide the metal disc 331 into two parts, namely a main disc body 33b located inside and an outer edge portion 33c located outside. A soft ring 332 is installed inside the outer edge portion 33c. In this embodiment, by providing an annular array composed of many through holes 33a, the outer edge portion 33c has better flexibility. In this way, a relatively large area on the outer edge portion 33c can generate an elastic deformation that bends outward, and the central angle corresponding to the deformed area can reach about 90°. In this way, a good clamping effect can be achieved, the clamping stability is good, and the clamping force of the area where the elastic deformation occurs on the outer edge portion 33c on the sweet potato seedlings is relatively consistent. The function of the soft ring 332 is to prevent the outer edge portion 33c from pinching the sweet potato seedlings.

[0041] In the second embodiment, as Figure 6 shown, the clamping disc 33 includes a rigid inner disc body 333 and an outer ring portion 334 that is concentrically arranged with the inner disc body 333 and is located on the periphery of the inner disc body 333. The outer ring portion 334 is made of rubber; the two outer ring portions 334 corresponding to the two clamping discs 33 have clamping portions that are in contact with each other; the seedling transplanting mechanism 3C further includes a holding frame 38; the holding frame 38 has a first rod portion 38a placed outside the clamping portion, and also has a second rod portion 38b placed inside the opposite side portion of the outer ring portion 334 where the clamping portion is located; the two holding frames 38 corresponding to the two clamping discs 33 can be elastically opened and closed relative to each other. Specifically, the two holding frames 38 are both rotatably installed relative to the main frame 1, and a spring 39 is connected between the two. With the above structure, by cleverly setting the holding frame 38, the first rod portion 38a of the holding frame 38 can not only limit the deformation area of the outer ring portion 334, but also make the clamping force of the deformation area of the outer ring portion 334 on the sweet potato seedlings relatively consistent. The second rod portion 38b of the holding frame 38 can keep the non-deformed area parts of the two outer ring portions 334 in an open state, facilitating the entry of sweet potato seedlings. In addition, since the two holding frames 38 can be elastically opened and closed relative to each other, the transfer operation of sweet potato seedlings with different thicknesses can be carried out without pinching the sweet potato seedlings.

[0042] The above are only the preferred embodiments of the present invention. It should be noted that: for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A compact reel-type sweet potato seedling transplanter, which comprises a main frame (1), a rotary tillage and ridging device (2) and a transplanting device (3); the transplanting device (3) comprises a ditching mechanism (3A), a sweet potato seedling separating mechanism (3B), a seedling transplanting mechanism (3C) and a soil covering mechanism (3D); The sweet potato seedling separating mechanism (3B) can separate the reel from the sweet potato seedlings; The ditching mechanism (3A) comprises two symmetrically arranged side plates (31), and a notch (31a) that is vertically penetrated and open at the rear end is formed between the two side plates (31), and the front ends of the two side plates (31) are connected and closed to form a cutting edge (31b); The soil covering mechanism (3D) comprises two soil covering wheels (32) arranged in a V-shaped layout; The seedling transplanting mechanism (3C) comprises two clamping discs (33) arranged in a V-shaped layout, and the edge of the clamping disc (33) can be deformed; It is characterized in that: A part of the clamping disc (33) is placed in the V-shaped space between the two soil covering wheels (32), and the front end of the clamping disc (33) extends out of the V-shaped space; the clamping disc (33) is located above the rear end of the notch (31a); when the sweet potato seedling separating mechanism (3B) operates, the sweet potato seedlings (A1) in the seedling tray (A) move downward along a vertical path, and the vertical path is located above the front side of the notch (31a); The clamping disc (33) comprises a rigid inner disc body (333) and an outer ring part (334) that is concentrically arranged with the inner disc body (333) and located on the periphery of the inner disc body (333), and the outer ring part (334) is made of rubber; the two outer ring parts (334) corresponding to the two clamping discs (33) have clamping parts that are abutted against each other; the seedling transplanting mechanism (3C) further comprises a holding frame (38); the holding frame (38) has a first rod part (38a) placed outside the clamping part, and also has a second rod part (38b) placed inside the opposite side part of the outer ring part (334) located at the clamping part; the two holding frames (38) corresponding to the two clamping discs (33) can be elastically opened and closed relative to each other.

2. The compact reel-type sweet potato seedling transplanter according to claim 1, characterized in that, The rear end of the side plate (31) has a part extending into the V-shaped space.

3. The compact reel-type sweet potato seedling transplanter according to claim 1, characterized in that, The sweet potato seedling separating mechanism (3B) comprises a seedling tray rotating shaft (34), a guiding wheel assembly installed on both sides directly below the seedling tray rotating shaft (34) and a reel rotating shaft (35).

4. The compact reel-type sweet potato seedling transplanter according to claim 3, characterized in that, The front half part of the side plate (31) has an upward extension part (31c), and a trapezoidal space that is wider at the top and narrower at the bottom is formed between the two upward extension parts (31c) corresponding to the two side plates (31); The guiding wheel assembly comprises a lower guiding wheel (36) placed in the trapezoidal space and an upper guiding wheel (37) placed outside the trapezoidal space; the lower guiding wheel (36) is located at the frontmost end of the clamping disc (33); the belt body in the seedling tray (A) passes through the lower guiding wheel (36) and the upper guiding wheel (37) in sequence and then is wound around the reel rotating shaft (35).

5. The compact reel-type sweet potato seedling transplanter according to claim 4, characterized in that, The upper end of the upward extension part (31c) is provided with a flanging part (31d) for connecting the main frame (1).

6. The compact reel-type sweet potato seedling transplanter according to claim 1, characterized in that, A seat (4) and a seedling tray placing rack (5) are also installed on the main frame (1).

7. The compact reel-type sweet potato seedling transplanter according to claim 1, characterized in that, The rotary tillage and ridging device (2) includes a rotary tillage knife group (21) and a ridging mechanism (22) arranged in sequence from front to back.

8. The compact reel-type sweet potato seedling transplanter according to claim 7, characterized in that, The ridging mechanism (22) is a bent plate, which encloses a trapezoidal space with an open bottom, and the cross-sectional area at the front end of the trapezoidal space is large, while the cross-sectional area at the rear end is small.

Images