L-shaped staggered parallel chain planting single body of plug seedling transplanter

Abstract

The utility model discloses an L-shaped staggered parallel chain planting single body of a plug seedling transplanter. The L-shaped staggered parallel chain planting single body comprises an L-shaped staggered parallel chain planting mechanism, a pressing mechanism and the like. The L-shaped staggered parallel chain planting mechanism comprises an L-shaped rack, two sets of chain transmission systems which are vertically arranged in parallel in a staggered manner, hanging cup planting devices and the like, a plurality of Z-shaped parts are mounted on the two sets of chain transmission systems at equal intervals through Z-shaped part mounting seats, and the hanging cup planting devices are arranged at the tail ends of the Z-shaped parts; two sets of chain transmission systems and Z-shaped pieces ensure the zero-speed planting movement track when the vertical section of the hanging cup planting device receives seedlings and the horizontal section of the hanging cup planting device is long. The rear part of the planting mechanism is provided with a compacting mechanism, the front part is provided with a mounting rack, and a hexagonal shaft penetrates through the mounting rack and is linked with a power input mechanism for driving the mounting rack to rotate. According to the principle of'vertical section seedling grafting, horizontal section long-time zero-speed planting and profiling pressing ', the seedling grafting success rate and the planting qualification rate are improved during high-speed operation. The design of adjustable tensioning of the L-shaped rack and adjustable pressing force of the pressing mechanism enhances the adaptability to soil texture.

Description

TECHNICAL FIELD

[0001] The utility model relates to a plug seedling transplanting equipment, especially a plug seedling transplanting machine L type misplacement parallel chain planting monomer. BACKGROUND

[0002] Mechanized transplanting equipment is the key to reduce labor intensity, improve work efficiency and reduce production cost, and the planting mechanism directly determines the precision, efficiency and adaptability of the transplanting operation. For example, the Chinese utility model patent with the announcement number CN206283821U discloses a "planting mechanism of chain clamp type transplanting machine", which completes the seedling taking and seedling throwing action through the inverted triangular frame and the chain driven planting arm. Although this design can realize zero-speed seedling throwing, it has the following key defects: two sets of chain transmission systems are arranged horizontally and left and right staggered, and the horizontal occupation is large. In addition, the inverted triangular frame fixed structure has low adjustment flexibility. At the same time, under high-speed operation or soil resistance mutation, the missing transplanting caused by seedling taking failure is easy to occur. In addition, due to the chain transmission motion track, the cup is planted at zero speed, which easily leads to planting skew under high-speed operation, affecting the planting quality. UTILITARY MODEL CONTENTS

[0003] In order to overcome the problems of high missing transplanting rate, planting skew, large horizontal occupation of the planting mechanism and low adjustment flexibility in the planting process in the prior art, the utility model provides a plug seedling transplanting machine L type misplacement parallel chain planting monomer, which is arranged vertically and left and right staggered through two sets of chain transmission systems, uses the three-dimensional space, and has smaller horizontal size; adopts the L type frame nested square tube, the spring in the connecting square tube, the bolt and other buffers to form an adjustable tensioning structure to enhance the terrain adaptability and structural stability; prolongs the seedling taking track of the vertical section of the cup planting device, thereby prolonging the length of the overlapping interval of the seedling taking track of the vertical section of the cup planting device and the vertical seedling throwing track of the plug seedling, and improving the seedling taking success rate; prolongs the duration of the zero-speed planting track of the horizontal section, and improves the problems of the decrease of the planting qualification rate and the straightness caused by the instantaneous zero-speed planting track motion process of the cup planting device of the traditional planting mechanism under high-speed operation.

[0004] The technical scheme adopted by the utility model to solve the technical problems is:

[0005] The application discloses an L-shaped staggered parallel chain transplanting monomer of a plug seedling transplanting machine, which comprises a pressing mechanism and an L-shaped staggered parallel chain transplanting mechanism, wherein the pressing mechanism is installed at the rear part of the L-shaped staggered parallel chain transplanting mechanism, the front part is provided with a mounting frame, and a hexagonal shaft is installed at the front part of the L-shaped staggered parallel chain transplanting mechanism through the mounting frame.

[0006] The L-shaped rack is composed of three supporting square tubes, one connecting square tube and an installation square tube; the vertical section of the L-shaped rack: the first supporting square tube and the second supporting square tube are connected through the connecting square tube in a nested mode; the horizontal section of the L-shaped rack: the third supporting square tube is nested at the end of the second supporting square tube; a composite cross section is formed through the contact surface of the inner and outer tube walls, the moment of inertia is significantly improved, the dynamic load in the transplanting operation can be effectively resisted, compared with the traditional solid beam or welded frame, the nested hollow square tube can significantly reduce the weight under the same strength, and the modularization quick disassembly can be realized; the connecting square tube is arranged in the vertical direction, the central part is a through structure, and the spring base is accommodated; the spring base is inserted into the connecting square tube and is provided with a spring above; the spring base is provided with through holes at both ends, a bolt penetrates through each through hole, and the compression deformation amount of the spring can be adjusted by installing a nut at the bottom of the bolt, so that the pre-tightening force of the spring can be adjusted, the tensioning degree of the two chains can be adjusted, and the different working condition requirements can be met.

[0007] The L-shaped staggered parallel chain transmission system comprises two sets of chain transmission systems arranged in the vertical staggered parallel mode and one driven sprocket shaft end driven sprocket; each set of chain transmission system is composed of one driving sprocket, two driven sprockets, a planting chain and a sprocket shaft; the driving sprocket is the highest sprocket in the vertical direction, and the driven sprockets are the other two sprockets; the driving sprocket and the driven sprocket are installed on the three supporting square tubes through the sprocket shaft; the driving sprocket shaft end driven sprocket is installed outside the highest driving sprocket in the vertical direction.

[0008] The Z-shaped pieces are fixed on the planting chain at equal intervals by Z-shaped piece mounting seats, and the Z-shaped pieces are provided with hanging cup planters at their ends; the cam plate is mounted on the second section of the support square tube, and the hanging cup planters trigger the cam plate to open when running to the planting position, thereby completing the horizontal long-time zero-speed planting.

[0009] The L-shaped staggered parallel chain planting mechanism is mounted on the U-shaped frame through the mounting square tube, the rear part of the U-shaped frame is connected with the compacting mechanism through a compacting mechanism mounting plate, and the front part is provided with a mounting frame, and a hexagonal shaft is installed in the front part of the L-shaped staggered parallel chain planting mechanism.

[0010] The compacting mechanism comprises a compacting mechanism mounting plate, a compacting connecting frame rod, a screw rod, a compacting spring and a profiling compacting wheel; the compacting mechanism mounting plate is mounted at the rear part of the L-shaped staggered parallel chain planting mechanism; the compacting connecting frame rod is connected with the compacting mechanism mounting plate and is below the screw rod; the compacting spring is sleeved on the upper surface of the screw rod; the profiling compacting wheel is connected with the compacting connecting frame rod and is below the compacting mechanism, thereby achieving the covering and compacting of the soil after the tray seedlings are planted; the compacting mechanism forms a movable lever structure through the profiling compacting wheel, the screw rod, the compacting spring and the compacting connecting frame rod, allowing the profiling compacting wheel to float up and down on the undulating ground, thereby realizing the adjustable compacting force to adapt to different firmness of the soil such as sand and clay, and ensuring the consistency of the compacting tightness and the stability of the compacting track.

[0011] The L-shaped staggered parallel chain planting mechanism optimizes the motion track of the hanging cup planter, makes the vertical section of the hanging cup planter meet the vertical motion track, and makes the horizontal section meet the long-time absolute zero-speed motion track, so as to complete the vertical section seedling receiving and the horizontal section long-time zero-speed planting; the L-shaped staggered parallel chain planting mechanism prolongs the vertical section seedling receiving track of the hanging cup planter, thereby prolonging the length of the overlapping interval of the vertical section seedling receiving track of the hanging cup planter and the vertical seedling dropping track of the tray seedlings, and improving the seedling receiving success rate; when the motion speed V2 of the hanging cup planter is less than the vertical falling speed V1 of the tray seedlings, a speed difference ΔV=V1-V2 is formed, so that the tray seedlings chase into the hanging cup planter along the overlapping track; when the hanging cup planter enters the horizontal section long-time zero-speed planting stage, the linear speed of the horizontal section is equal in size and opposite in direction to the forward speed of the L-shaped staggered parallel chain planting mechanism, and the speed is zero, the L-shaped staggered parallel chain planting mechanism prolongs the duration of the horizontal section zero-speed planting track, and improves the problems of the decrease of the planting qualification rate and the straightness caused by the instantaneous zero-speed planting track motion process of the traditional planting mechanism hanging cup planter in high-speed operation.

[0012] The beneficial effects of this utility model are as follows: by using two sets of chain drive systems arranged in a vertically staggered parallel manner, the horizontal dimension is smaller, utilizing three-dimensional space; the adjustable tension structure is formed by using an L-shaped frame nested with square tubes, and connecting springs, bolts, and other buffers inside the square tubes to enhance terrain adaptability and structural stability; the vertical section of the hanging cup planter's seedling receiving trajectory is extended, thereby extending the overlap between the vertical seedling receiving trajectory of the hanging cup planter and the vertical seedling placement trajectory of the plug tray seedling, improving the seedling receiving success rate; the duration of the zero-speed planting trajectory in the horizontal section is extended, improving the problem of decreased planting qualification rate and uprightness caused by the instantaneous zero-speed planting trajectory movement of the hanging cup planter in traditional planting mechanisms during high-speed operations. Attached Figure Description

[0013] The present invention includes the following figures:

[0014] Figure 1 A schematic diagram of an L-shaped staggered parallel chain planting unit for a plug seedling transplanter;

[0015] Figure 2 A schematic diagram of the adjustable tension structure and square tube nesting of the L-shaped misaligned parallel chain planting mechanism;

[0016] Figure 3 Schematic diagram of the structure of the L-shaped misaligned parallel chain planting mechanism, including the Z-shaped component, Z-shaped component mounting base, and hanging cup planter;

[0017] Figure 4 A schematic diagram illustrating the principle of a L-shaped staggered parallel chain planting unit for seedling tray transplanting machine, showing the vertical segment seedling receiving and the horizontal segment long-term zero-speed planting.

[0018] Figure 5 This is a schematic diagram of the L-shaped staggered parallel chain planting unit pressing mechanism of a seedling transplanter.

[0019] In the diagram: 1. Pressing mechanism, 2. Contouring pressing wheel, 3. Pressing connecting rod, 4. Pressing mechanism mounting plate, 5. Screw, 6. Pressing spring, 7. L-shaped staggered parallel chain planting mechanism, 8. L-shaped frame, 9. L-shaped staggered parallel chain drive system, 10. Two sets of chain drive systems, 11. Driven sprocket at the end of the drive sprocket shaft, 12. Drive sprocket, 13. Support square tube, 14. First section of support square tube, 15. Connection. 16. Square tube, 17. Spring, 18. Bolt, 19. Spring base, 20. Mounting square tube, 21. Second section supporting square tube, 22. Planting chain, 23. Driven sprocket, 24. Sprocket shaft, 25. Third section supporting square tube, 26. Z-shaped component, 27. Z-shaped component mounting base, 28. Hanging cup planter, 29. Cam plate, 30. U-shaped frame, 31. Mounting bracket, 32. Hexagonal shaft drive sprocket, 33. Hexagonal shaft. Detailed Implementation

[0020]

Example 1

[0021] A plug seedling transplanting machine L type staggered parallel chain planting monomer, comprising a pressing mechanism 1, an L type staggered parallel chain planting mechanism 7 (as shown in Figure 1 The L type staggered parallel chain planting mechanism 7 is provided with the pressing mechanism 1 at the rear part, an installation frame 30 at the front part, and a hexagonal shaft 32 installed at the front part of the L type staggered parallel chain planting mechanism 7 through the installation frame 30.

[0022] The L type rack 8 is composed of three supporting square tubes 13, one connecting square tube 15 and one installation square tube 19. The vertical section of the L type rack is composed of the first supporting square tube 14 and the second supporting square tube 20 which are nested and connected by the connecting square tube 15. The horizontal section of the L type rack is composed of the third supporting square tube 24 which is nested at the end of the second supporting square tube 20. The contact surface of the inner and outer tube walls forms a composite cross section, the moment of inertia is significantly improved, and the dynamic load in the transplanting operation can be effectively resisted. Compared with the traditional solid beam or welded frame, the nested hollow square tube has a significant weight reduction effect under the same strength, and can realize modular quick disassembly. The connecting square tube 15 is arranged in the vertical direction, and the central part is a through structure to accommodate the spring base 18. The spring base 18 is inserted into the connecting square tube 15, and the spring 16 is installed above the connecting square tube 15. The spring base 18 is provided with through holes at both ends, each of which is penetrated by a bolt 17, and the compression deformation of the spring 16 can be adjusted by installing a nut at the bottom of the bolt 17, so as to adjust the pre-tightening force of the spring 16, and the tensioning degree of the two chains can be adjusted to meet the different working condition requirements (as shown in Figure 2 ).

[0023] The L-shaped staggered parallel chain transmission system 9 comprises two sets of chain transmission systems 10 arranged vertically and staggered, and a driven sprocket 11 at the end of the driving sprocket shaft; each set of chain transmission system is composed of a driving sprocket 12, two driven sprockets 22, a planting chain 21 and a sprocket shaft 23; the driving sprocket 12 is the highest chain wheel in the vertical direction, and the driven sprockets 22 are the other two chain wheels; the driving sprocket 12 and the driven sprockets 22 are installed on the three sections of support square tubes 13 through the sprocket shaft 23; the driven sprocket 11 at the end of the driving sprocket shaft is installed outside the highest driving sprocket 12 in the vertical direction (as shown in Figure 1 、 2 ).

[0024] A plurality of Z-shaped pieces 25 are fixed on the planting chain 21 at equal intervals through Z-shaped piece mounting seats 26, and the Z-shaped pieces 25 are provided with hanging cup planters 27 at the ends (as shown in Figure 3 ). The cam plate 28 is installed on the second section of support square tube 20, and when the hanging cup planter 27 triggers the cam plate 28 to open when it reaches the planting position, the horizontal long-time zero-speed planting is completed.

[0025] The L-shaped staggered parallel chain planting mechanism 7 is installed on the U-shaped frame 29 through the mounting square tube 19, the rear part of the U-shaped frame 29 is connected with the tamping mechanism 1 through the tamping mechanism mounting plate 4, the front part is provided with a mounting bracket 30, and a hexagonal shaft 32 passes through the mounting bracket 30 and is installed at the front part of the L-shaped staggered parallel chain planting mechanism 7.

[0026] The tamping mechanism 1 is composed of a tamping mechanism mounting plate 4, a tamping connecting frame rod 3, a screw rod 5, a tamping spring 6 and a profiling tamping wheel 2; the tamping mechanism mounting plate 4 is installed at the rear part of the L-shaped staggered parallel chain planting mechanism 7; the tamping connecting frame rod 3 is connected with the tamping mechanism mounting plate 4 and below the screw rod 5; the tamping spring 6 is sleeved on the upper surface of the screw rod 5; the profiling tamping wheel 2 is connected with the tamping connecting frame rod 3 and located below the tamping mechanism 1, which realizes the soil covering and compaction after the tray seedlings are planted; the tamping mechanism forms a movable lever structure through the profiling tamping wheel 2, the screw rod 5, the tamping spring 6 and the tamping connecting frame rod 3, allowing the profiling tamping wheel 2 to float up and down on the undulating ground, realizing the adjustable tamping force to adapt to different firmness of soil such as sandy soil and clay, and ensuring the consistency of tamping compactness and the stability of tamping trajectory (as shown in Figure 5 ).

[0027] The L-shaped staggered parallel chain planting mechanism 7 optimizes the motion trajectory of the hanging cup planter 27, so that the vertical section of the hanging cup planter 27 satisfies the vertical motion trajectory, and the horizontal section satisfies the long-time absolute zero-speed motion trajectory, to complete the vertical section seedling receiving and the horizontal section long-time zero-speed planting (as shown in Figure 4The L-shaped staggered parallel chain planting mechanism extends the vertical section seedling receiving track of the hanging cup planting device 27, thereby extending the length of the interval in which the vertical section seedling receiving track of the hanging cup planting device 27 coincides with the vertical seedling dropping track of the plug seedling, and improving the success rate of seedling receiving; when the movement speed V2 of the hanging cup planting device 27 is less than the vertical falling speed V1 of the plug seedling, a speed difference AV = V1-V2 is formed, so that the plug seedling chases into the hanging cup planting device 27 along the coinciding track; when the hanging cup planting device 27 enters the horizontal section zero-speed planting stage, the linear speed of the horizontal section is equal in size and opposite in direction to the forward speed of the L-shaped staggered parallel chain planting mechanism 7, and the synthesis is a zero-speed state, the L-shaped staggered parallel chain planting mechanism 7 extends the duration of the zero-speed planting track in the horizontal section, and improves the problem of the decrease of the planting qualified rate and the straightness caused by the instantaneous zero-speed planting track movement process of the traditional planting mechanism hanging cup planting device in high-speed operation.

Claims

1. A L-shaped staggered parallel chain transplanting monomer of a plug seedling transplanting machine, comprising a tamping mechanism (1) and a L-shaped staggered parallel chain transplanting mechanism (7), the tamping mechanism (1) is installed at the rear of the L-shaped staggered parallel chain transplanting mechanism (7), a mounting frame (30) is arranged at the front of the L-shaped staggered parallel chain transplanting mechanism (7), and a hexagonal shaft (32) is installed at the front of the L-shaped staggered parallel chain transplanting mechanism (7) through the mounting frame (30); characterized in that: The L-shaped staggered parallel chain planting mechanism (7) comprises an L-shaped frame (8), an L-shaped staggered parallel chain transmission system (9), Z-shaped pieces (25), Z-shaped piece mounting seats (26), hanging cup planters (27) and a cam plate (28); the L-shaped staggered parallel chain transmission system (9) comprises two sets of chain transmission systems (10) arranged vertically and staggered in parallel and a driving sprocket shaft end driven sprocket (11); a plurality of Z-shaped pieces (25) are equidistantly mounted on planting chains (21) of the two sets of chain transmission systems (10) through Z-shaped piece mounting seats (26), and the Z-shaped pieces (25) are provided with the hanging cup planters (27) at the ends; the cam plate (28) is mounted on the lower part of the L-shaped frame (8); the L-shaped staggered parallel chain planting mechanism (7) is linked with a hexagonal shaft driving sprocket (31) through the driving sprocket shaft end driven sprocket (11), and the hexagonal shaft (32) is connected with a power input mechanism for driving rotation.

2. The L-shaped staggered parallel chain transplanting monomer of a plug seedling transplanting machine according to claim 1, characterized in that: The L-shaped frame (8) is composed of three supporting square tubes (13), a connecting square tube (15) and a mounting square tube (19); the vertical section of the L-shaped frame: the first supporting square tube (14) and the second supporting square tube (20) are nested and connected through the connecting square tube (15); the horizontal section of the L-shaped frame: the third supporting square tube (24) is nested at the end of the second supporting square tube (20); the connecting square tube (15) is arranged in the vertical direction, and the center is a through structure to accommodate a spring base (18); the spring base (18) is inserted into the connecting square tube (15) and mounted with a spring (16) above it; the spring base (18) is provided with through holes at both ends, each of which is penetrated by a bolt (17), and the compression deformation of the spring (16) can be adjusted by installing a nut at the bottom of the bolt (17), so as to adjust the pre-tightening force of the spring (16), and the tensioning degree of the two chains can be adjusted to meet the requirements of different working conditions.

3. The L-shaped staggered parallel chain transplanting unit of claim 2, characterized in that: The L-shaped staggered parallel chain transmission system (9) comprises two sets of chain transmission systems (10) arranged vertically and staggered in parallel and a driving sprocket shaft end driven sprocket (11), and each set of chain transmission system is composed of a driving sprocket (12), two driven sprockets (22), a planting chain (21) and a sprocket shaft (23); the driving sprocket (12) is the highest sprocket in the vertical direction, and the driven sprockets (22) are the other two sprockets; the driving sprocket (12) and the driven sprockets (22) are installed on the three supporting square tubes (13) through the sprocket shaft (23); the driving sprocket shaft end driven sprocket (11) is installed outside the highest driving sprocket (12) in the vertical direction.

4. The L-shaped staggered parallel chain transplanting unit of claim 3, wherein: The plurality of Z-shaped pieces (25) are equidistantly fixed on the planting chains (21) through the Z-shaped piece mounting seats (26), and the Z-shaped pieces (25) are provided with the hanging cup planters (27) at the ends; the cam plate (28) is mounted on the second supporting square tube (20).

5. The L-shaped staggered parallel chain transplanting unit of claim 4, wherein: The L-shaped misaligned parallel chain planting mechanism (7) is installed on the U-shaped frame (29) through the installation square tube (19), the rear part of the U-shaped frame (29) is connected with the pressing mechanism (1) through the pressing mechanism installation plate (4), and the front part is provided with a mounting frame (30), and the hexagonal shaft (32) passes through the mounting frame (30) and is installed at the front part of the L-shaped misaligned parallel chain planting mechanism (7).

6. The L-shaped staggered parallel chain transplanting unit of claim 5, wherein: The pressing mechanism (1) is composed of a pressing mechanism installation plate (4), a pressing connecting frame rod (3), a screw rod (5), a pressing spring (6) and a profiling pressing wheel (2); the pressing mechanism installation plate (4) is installed at the rear part of the L-shaped misaligned parallel chain planting mechanism (7); the pressing connecting frame rod (3) is connected with the pressing mechanism installation plate (4) and is below the screw rod (5); the pressing spring (6) is sleeved on the upper surface of the screw rod (5); the profiling pressing wheel (2) is connected with the pressing connecting frame rod (3) and is below the pressing mechanism (1); the pressing mechanism forms a movable lever structure through the profiling pressing wheel (2), the screw rod (5), the pressing spring (6) and the pressing connecting frame rod (3), allows the profiling pressing wheel (2) to float up and down on the undulating ground, realizes adjustable pressing force and thus adapts to different firmness of soil such as sandy soil and clay, and ensures consistency of pressing compactness and stability of pressing track.

7. The L-shaped staggered parallel chain transplanting unit of a plug seedling transplanting machine according to claim 6, characterized in that: The L-shaped misaligned parallel chain planting mechanism (7) optimizes the motion track of the hanging cup planting device (27), makes the vertical section of the hanging cup planting device (27) meet the vertical motion track and the horizontal section meet the long-time absolute zero-speed motion track, so as to complete the seedling receiving of the vertical section and the long-time zero-speed planting of the horizontal section; the L-shaped misaligned parallel chain planting mechanism prolongs the seedling receiving track of the vertical section of the hanging cup planting device (27), so as to prolong the length of the interval of the seedling receiving track of the vertical section of the hanging cup planting device (27) and the vertical seedling dropping track of the plug seedling, and improve the seedling receiving success rate; when the motion speed V2 of the hanging cup planting device (27) is less than the vertical falling speed V1 of the plug seedling, a speed difference AV=V1-V2 is formed, so that the plug seedling chases into the hanging cup planting device (27) along the coincident track; when the hanging cup planting device (27) enters the long-time zero-speed planting stage of the horizontal section, the linear speed of the horizontal section is equal in size and opposite in direction to the forward speed of the L-shaped misaligned parallel chain planting mechanism (7), and the zero-speed state is synthesized, the L-shaped misaligned parallel chain planting mechanism (7) prolongs the duration of the zero-speed planting track of the horizontal section, and improves the problems of the decrease of the planting qualification rate and the straightness caused by the instantaneous zero-speed planting track motion process of the traditional planting mechanism hanging cup planting device in high-speed operation.

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