Seedling supporting frame structure for automatic seedling taking rice transplanter

Abstract

The utility model discloses a seedling supporting frame structure for an automatic seedling taking transplanter, belongs to the technical field of agricultural machinery, and aims to solve the problem that a seedling supporting frame is opened and closed abnormally. Comprising a main frame body, Z-shaped fixing beams are arranged at the two ends of the bottom of the main frame body, sliding block sets are arranged on the upper portions and the lower portions of the Z-shaped fixing beams, gears are rotationally arranged in the middles of the Z-shaped fixing beams, the front portions of two upper sliding frames are correspondingly connected with the left end and the right end of a front seedling cage respectively, and upper sliding rails are arranged on the upper sliding frames; the rear portions of the two lower sliding frames are correspondingly connected with the left end and the right end of the rear seedling cage respectively, lower sliding rails are arranged on the lower sliding frames, the upper sliding rails are matched with the sliding block sets on the upper portion of the Z-shaped fixing beam, the lower sliding rails are matched with the sliding block sets on the lower portion of the Z-shaped fixing beam, upper racks are arranged on the upper sliding frames, lower racks are arranged on the lower sliding frames, and gears are meshed with the upper racks and the lower racks on the same side respectively. A plurality of front trays are arranged on the front seedling cage, a plurality of rear trays are arranged on the rear seedling cage, and the sliding rails on the two sides are good in synchronism and flexible and smooth in opening and closing.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, in particular to a seedling support frame structure for an automatic seedling taking and transplanting machine. Background Art

[0002] Rice is a major grain crop in my country, ranking second in both cultivated area and yield. my country has a long history of rice cultivation. A rice transplanter is an agricultural machine that plants rice seedlings in paddies. Mechanized rice planting not only significantly reduces farmers' labor intensity but also lowers the overall cost of rice cultivation.

[0003] In the field of rice transplanting, positioning and navigation technology has enabled unmanned, automated rice transplanter operation and automated rice field path planning. Traditional rice transplanters require a human on board to manually feed seedlings. Chinese invention patent publication number CN118476359A discloses a seedling removal device for an unmanned rice transplanter with automatic and continuous seedling feeding, enabling automated and continuous seedling feeding and removal.

[0004] The unmanned rice transplanter with publication number CN118476359A adopts a three-section drawer slide rail to make the first movable frame and the second movable frame slide with the support frame respectively. In actual application, it is found that the slide rails on both sides cannot be synchronized, affecting the normal opening and closing of the first movable frame and the second movable frame.

[0005] In addition, the unmanned rice transplanter with publication number CN118476359A is provided with a support frame on the top of the seedling support frame, and two pins are provided on the support frame. When taking seedlings, it is necessary to screw the insertion end of the seedling taking mechanism into the support frame from one side, and align the two positioning holes on the insertion end with the two pins. The seedling taking mechanism is driven upward by the lifting mechanism, and the two pins are inserted into the two positioning holes respectively, so that the seedling support frame can be lifted. In actual application, it is found that the matching accuracy requirements between the seedling taking mechanism and the seedling support frame are relatively high, and the pins are difficult to accurately insert into the positioning holes. Utility Model Content

[0006] The purpose of this utility model is to provide a seedling support frame structure for an automatic seedling transplanter to solve the problem of abnormal opening and closing of the seedling support frame when the existing unmanned transplanter is taking seedlings. The technical solution adopted by this utility model is as follows:

[0007] A seedling supporting frame structure for an automatic seedling-taking transplanter, comprising a main frame body. At both ends of the bottom of the main frame body, Z-shaped fixing beams are symmetrically arranged left and right. The upper part of the Z-shaped fixing beam is located at the front side and the lower part is located at the rear side. Slider groups arranged front and back are provided on both the upper and lower parts of the Z-shaped fixing beam. A gear is rotatably arranged in the middle of the Z-shaped fixing beam. The front parts of the two upper sliding frames are respectively connected corresponding to the left and right ends of the front seedling cage. Upper sliding rails are provided on the upper sliding frames. The rear parts of the two lower sliding frames are respectively connected corresponding to the left and right ends of the rear seedling cage. Lower sliding rails are provided on the lower sliding frames. The upper sliding rails are slidably matched with the slider groups on the upper parts of the corresponding Z-shaped fixing beams, and the lower sliding rails are slidably matched with the slider groups on the lower parts of the corresponding Z-shaped fixing beams. Upper racks are provided on the upper sliding frames, and lower racks are provided on the lower sliding frames. The gear is meshed with the upper rack and the lower rack on the same side respectively. A number of front trays are arranged in a row on the front seedling cage, and a number of rear trays are arranged in a row on the rear seedling cage. When the gear rotates, the front trays and the rear seedling cage approach or move away from each other.

[0008] Further, both the front trays and the rear trays are six, and the six front trays and the six rear trays correspond to each other one by one front and back.

[0009] Further, the two upper racks are fixed on the inner sides of the corresponding two upper sliding frames, and the two lower racks are fixed on the inner sides of the corresponding two lower sliding frames.

[0010] Further, a hanging beam is provided at the rear end of the main frame body. A number of groups of hanging structures are arranged vertically on the seedling storage frame of the transplanter. The hanging structure includes a first cantilever group and a second cantilever group arranged up and down. The first cantilever group consists of two upper cantilevers arranged horizontally. Grooves are provided on the upper end surfaces of the upper cantilevers. The second cantilever group consists of two lower cantilevers arranged horizontally. When the seedling storage frame hangs the seedling supporting frame, the hanging beam is matched with the grooves of the corresponding two upper cantilevers, and the two lower cantilevers support the rear seedling cage.

[0011] Further, the main frame body is in a "冂" shape. A seedling-taking gap is provided between the horizontal frame at the top of the main frame body and the front seedling cage and the rear seedling cage. The seedling-taking mechanism of the transplanter has an insertion end, and the insertion end is in an isosceles trapezoid shape. When taking seedlings, the upper base side of the trapezoid of the insertion end extends into the seedling-taking gap.

[0012] [[ID=1十五]]Further, a hook is provided at the front end of the front seedling cage. The hook includes a front limiting piece and a rear limiting piece arranged front and back. Grooves are provided on the opposite sides of the front limiting piece and the rear limiting piece. A sliding table is provided at the bottom of the insertion end. The output shaft of the stepping motor is connected to the lead screw of the sliding table, and the nut of the sliding table is connected to the seedling-taking pull rod. When the insertion end extends into the seedling-taking gap, the seedling-taking pull rod is screwed into the space between the front limiting piece and the rear limiting piece and is respectively clamped and matched with the grooves of the front limiting piece and the rear limiting piece.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. When the front seedling cage is pulled forward, the upper rack drives the gear to rotate, and then drives the rear seedling cage to slide backward through the lower rack. When the front seedling cage and the rear seedling cage are against each other front and back, several seedling skins are arranged and placed on the front seedling cage and the rear seedling cage, half of the seedling skins are placed on the corresponding front tray, and the other half of the seedling skins are placed on the corresponding rear tray. When seedlings need to be taken, the seedling taking device of the transplanter pulls the front seedling cage, and the front seedling cage and the rear seedling cage are separated, so that the seedling skins on the seedling support frame can fall onto the seedling receiving board for subsequent transplanting actions. The utility model realizes the opening and closing of the front seedling cage and the rear seedling cage through the sliding cooperation of the slider group and the corresponding upper slide rail or lower slide rail. The upper slide rails on both sides have good synchronization, and the lower slide rails on both sides have good synchronization, small sliding friction, and flexible and smooth opening and closing.

[0015] 2. Compared with the seedling support rack with the upper sliding frame and the lower sliding frame arranged on both sides of the gear axis, the total length of the seedling support rack can be smaller when supporting seedlings of the same width.

[0016] 3. Compared with the existing fixing method of the seedling rack, the structural material of the seedling rack can be reduced.

[0017] 4. The size of the seedling removal gap is much larger than the size of the insertion end, which makes it easier for the seedling removal mechanism to lift the seedling support frame.

[0018] 5. The seedling removal rod is circumferentially matched with the two grooves, and has good stability after being snapped in. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the utility model in which the front seedling cage and the rear seedling cage are offset against each other;

[0020] Figure 2 It is the main view of the utility model;

[0021] Figure 3 yes Figure 2 BB cross-sectional view;

[0022] Figure 4 It is a structural diagram of the seedling storage rack;

[0023] Figure 5 yes Figure 1 A magnified view of point A;

[0024] Figure 6 This is an axonometric drawing of the seedling-taking mechanism from an upward perspective;

[0025] Figure 7 It is a schematic diagram of the utility model in which the front seedling cage and the rear seedling cage are separated.

[0026] In the figure, 1. main frame, 2. hanging beam, 3. rear seedling cage, 4. rear tray, 5. upper sliding frame, 6. Z-shaped fixed beam, 7. lower sliding frame, 8. front seedling cage, 9. front tray, 10. seedling removal gap, 11. slider group, 12. upper slide rail, 13. upper rack, 14. lower slide rail, 15. lower rack, 16. gear, 17. insertion end, 18. upper cantilever, 19. lower cantilever, 20. front limit plate, 21. rear limit plate, 22. groove, 23. slide, 24. seedling removal rod. DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, the present invention is described below using specific embodiments illustrated in the accompanying drawings. However, it should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0028] The connections mentioned in this utility model are divided into fixed connections and detachable connections. The fixed connection refers to a non-detachable connection, including but not limited to conventional fixed connection methods such as hem connection, rivet connection, adhesive connection, and welding connection. The detachable connection refers to but not limited to conventional detachable connection methods such as bolt connection, snap connection, pin connection, and hinge connection. When the specific connection method is not clearly specified, it is assumed that at least one connection method can be found among the existing connection methods to achieve the function. Those skilled in the art can choose according to their needs. For example, a fixed connection may be a welding connection, and a detachable connection may be a bolt connection.

[0029] The present invention will be further described in detail below with reference to the accompanying drawings. The following embodiments are provided to explain the present invention, but the present invention is not limited to the following embodiments.

[0030] Example: Figures 1 to 7As shown, a seedling support frame structure for an automatic seedling transplanter includes a main frame 1, and Z-shaped fixed beams 6 are symmetrically arranged at both ends of the bottom of the main frame 1. The upper part of the Z-shaped fixed beam 6 is located on the front side and the lower part is located on the rear side. The upper and lower parts of the Z-shaped fixed beam 6 are both provided with slider groups 11 arranged front and back. The middle part of the Z-shaped fixed beam 6 is rotatably provided with a gear 16. The front parts of the two upper sliding frames 5 are respectively connected to the left and right ends of the front seedling cage 8, and the upper sliding frame 5 is provided with an upper slide rail 12. The rear parts of the two lower sliding frames 7 are respectively aligned with the left and right ends of the rear seedling cage 3. They should be connected, a lower rail 14 is provided on the sliding frame 7, the upper rail 12 slides with the slider group 11 on the upper part of the corresponding Z-shaped fixed beam 6, and the lower rail 14 slides with the slider group 11 on the lower part of the corresponding Z-shaped fixed beam 6. An upper rack 13 is provided on the upper sliding frame 5, and a lower rack 15 is provided on the lower sliding frame 7. The gear 16 is respectively engaged with the upper rack 13 and the lower rack 15 on the same side. A number of front trays 9 are arranged on the front seedling cage 8, and a number of rear trays 4 are arranged on the rear seedling cage 3. When the gear 16 rotates, the front tray 9 and the rear seedling cage 3 approach or move away.

[0031] When the front seedling cage 8 is pulled forward, the upper rack 13 drives the gear 16 to rotate, and then drives the rear seedling cage 3 to slide backward through the lower rack 15. When the front seedling cage 8 and the rear seedling cage 3 are against each other front and back, several seedling skins are arranged and placed on the front seedling cage 8 and the rear seedling cage 3, half of the seedling skins are placed on the corresponding front tray 9, and the other half of the seedling skins are placed on the corresponding rear tray 4. When seedlings need to be taken, the seedling taking device of the rice transplanter pulls the front seedling cage 8, and the front seedling cage 8 and the rear seedling cage 3 are separated, so that the seedling skins on the seedling support frame can fall onto the seedling receiving board for subsequent rice transplanting actions. The utility model realizes the opening and closing of the front seedling cage 8 and the rear seedling cage 3 through the sliding cooperation of the slider group 11 with the corresponding upper slide rail 12 or lower slide rail 14. The upper slide rails 12 on both sides have good synchronization, and the lower slide rails 14 on both sides have good synchronization, small sliding friction, and flexible and smooth opening and closing.

[0032] There are six front trays 9 and six rear trays 4 , and the six front trays 9 and the six rear trays 4 correspond one to one front to back.

[0033] The two upper racks 13 are fixed to the inner sides of the corresponding two upper sliding frames 5, and the two lower racks 15 are fixed to the inner sides of the corresponding two lower sliding frames 7. In this way, the upper racks 13 and lower racks 15 on the same side are arranged in parallel, and the corresponding upper sliding frames 5 and lower sliding frames 7 are also parallel. Compared with the seedling support rack with the upper sliding frames and lower sliding frames arranged on both sides of the gear axis, the total length of the seedling support rack can be smaller when supporting seedlings of the same width.

[0034] A suspension beam 2 is provided at the rear end of the main frame body 1. A number of groups of hanging structures are vertically arranged on the seedling storage frame of the transplanter. The hanging structure includes a first cantilever group and a second cantilever group arranged up and down. The first cantilever group consists of two upper cantilevers 18 arranged horizontally. A groove is provided on the upper end surface of the upper cantilever 18. The second cantilever group consists of two lower cantilevers 19 arranged horizontally. When the seedling storage frame hangs and supports the seedling tray, the suspension beam 2 cooperates with the grooves of the corresponding two upper cantilevers 18, and the two lower cantilevers 19 support the rear seedling cage 3. Compared with the fixing method of the existing seedling tray, the structural material of the seedling storage frame can be reduced.

[0035] The main frame body 1 is in a "冂" shape. A seedling taking gap 10 is provided between the transverse frame at the top of the main frame body 1 and the front seedling cage 8 and the rear seedling cage 3. The seedling taking mechanism of the transplanter has an insertion end 17, and the insertion end 17 is in an isosceles trapezoid shape. When taking seedlings, the upper base side of the trapezoid of the insertion end 17 extends into the seedling taking gap 10. The size of the seedling taking gap 10 is much larger than the size of the insertion end 17, which is convenient for the seedling taking mechanism to lift the seedling tray.

[0036] A hook is provided at the front end of the front seedling cage 8. The hook includes a front limiting piece 20 and a rear limiting piece 21 arranged front and rear. A groove 22 is provided on the side where the front limiting piece 20 and the rear limiting piece 21 face each other. A sliding table 23 is provided at the bottom of the insertion end 17. The output shaft of the stepping motor is connected to the丝杆 of the sliding table 23, and the nut of the sliding table 23 is connected to the seedling taking pull rod 24. When the insertion end 17 extends into the seedling taking gap 10, the seedling taking pull rod 24 is screwed into the space between the front limiting piece 20 and the rear limiting piece 21 and is respectively clamped and matched with the grooves 22 of the front limiting piece 20 and the rear limiting piece 21. The seedling taking pull rod 24 realizes circumferential cooperation with the two grooves 22, and the stability is good after clamping.

[0037] The above embodiments are only exemplary descriptions of the present invention and do not limit its protection scope. Those skilled in the art can also make partial changes to it. As long as it does not exceed the spiritual essence of the present invention, it is within the protection scope of the present invention.

Claims

1. A seedling support structure for an automatic seedling transplanter, characterized by: It includes a main frame body (1). At the left and right ends of the bottom of the main frame body (1), Z-shaped fixed beams (6) are symmetrically arranged. The upper part of the Z-shaped fixed beam (6) is at the front side and the lower part is at the rear side. Slide block groups (11) arranged front and rear are provided on both the upper and lower parts of the Z-shaped fixed beam (6). A gear (16) is rotatably arranged in the middle of the Z-shaped fixed beam (6). The front parts of the two upper sliding frames (5) are respectively connected to the left and right ends of the front seedling cage (8) correspondingly. Upper sliding rails (12) are provided on the upper sliding frames (5). The rear parts of the two lower sliding frames (7) are respectively connected to the left and right ends of the rear seedling cage (3) correspondingly. Lower sliding rails (14) are provided on the lower sliding frames (7). The upper sliding rails (12) are in sliding fit with the slide block groups (11) on the upper part of the corresponding Z-shaped fixed beam (6), and the lower sliding rails (14) are in sliding fit with the slide block groups (11) on the lower part of the corresponding Z-shaped fixed beam (6). Upper racks (13) are provided on the upper sliding frames (5), and lower racks (15) are provided on the lower sliding frames (7). The gear (16) is meshed with the upper rack (13) and the lower rack (15) on the same side respectively. A number of front trays (9) are arranged on the front seedling cage (8) in a row, and a number of rear trays (4) are arranged on the rear seedling cage (3) in a row. When the gear (16) rotates, the front tray (9) and the rear seedling cage (3) approach or move away from each other.

2. The seedling support structure for an automatic seedling-picking and transplanting machine according to claim 1, characterized in that: Both the front tray (9) and the rear tray (4) are six in number. The six front trays (9) and the six rear trays (4) correspond to each other one by one front and rear.

3. The seedling support structure for the automatic seedling-picking and transplanting machine according to claim 1, characterized in that: The two upper racks (13) are fixed to the inner sides of the corresponding two upper sliding frames (5), and the two lower racks (15) are fixed to the inner sides of the corresponding two lower sliding frames (7).

4. The seedling support structure for an automatic seedling-taking and transplanting machine according to claim 1, characterized in that: A suspension beam (2) is provided at the rear end of the main frame body (1). A number of groups of suspension structures are arranged vertically on the seedling storage frame of the transplanter. The suspension structure includes a first cantilever group and a second cantilever group arranged up and down. The first cantilever group is composed of two horizontally arranged upper cantilevers (18). Grooves are formed on the upper end surfaces of the upper cantilevers (18). The second cantilever group is composed of two horizontally arranged lower cantilevers (19). When the seedling storage frame suspends the seedling support frame, the suspension beam (2) cooperates with the grooves of the corresponding two upper cantilevers (18), and the two lower cantilevers (19) support the rear seedling cage (3).

5. The seedling support structure for the automatic seedling-taking and transplanting machine according to claim 1, characterized in that: The main frame body (1) is in an inverted U shape. A seedling taking gap (10) is provided between the transverse frame at the top of the main frame body (1) and the front seedling cage (8) and the rear seedling cage (3). The seedling taking mechanism of the transplanter has an insertion end (17). The insertion end (17) is in an isosceles trapezoid shape. When taking seedlings, the upper base side of the trapezoid of the insertion end (17) extends into the seedling taking gap (10).

6. The seedling support structure for the automatic seedling-picking and transplanting machine according to claim 5, characterized in that: A hook is provided at the front end of the front seedling cage (8), and the hook includes a front limiting piece (20) and a rear limiting piece (21) arranged front and back, a groove (22) is provided on the opposite side of the front limiting piece (20) and the rear limiting piece (21), and a slide (23) is provided at the bottom of the insertion end (17), the output shaft of the stepper motor is connected to the screw rod of the slide (23), and the nut of the slide (23) is connected to the seedling removal pull rod (24), and when the insertion end (17) is inserted into the seedling removal gap (10), the seedling removal pull rod (24) is screwed into between the front limiting piece (20) and the rear limiting piece (21), and is respectively engaged with the grooves (22) of the front limiting piece (20) and the rear limiting piece (21).

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