An efficient zero-speed well cell seedling planting integrated machine

Abstract

The present invention discloses an efficient zero-speed well cell and seedling dropping integrated machine, which includes a well cell forming mechanism, a seedling tray assembly, and a seedling dropping device; the well cell forming mechanism includes a first gear, a second gear, a zero-speed well cell welding assembly, a well cell forming device, and a spring. The zero-speed well cell welding assembly includes a rotating shaft, an irregular cam, a crank, a shaft, and a roller. The well cell forming device includes a support frame, on which a limiting frame and a rotating wheel are arranged; the first gear is externally meshed with the second gear; the second gear is connected to the rotating shaft, and the irregular cam and the crank are welded on the rotating shaft, and the irregular cam and the crank are arranged at a set phase angle. The crank is welded and connected to the shaft, the shaft is in rolling connection with the roller, the irregular cam is in rolling high pair connection with the rotating wheel, and the roller is in sliding high pair connection with the limiting frame; the well cell forming device is connected to the self-propelled chassis through a spring, and the well cell forming device can slide relative to the self-propelled chassis.

Description

Technical Field

[0001] The present invention relates to the field of crop seedling planting, and particularly to an integrated machine for efficiently punching well cellars and transplanting seedlings at zero speed. Background Art

[0002] Well cellar transplanting refers to a new planting technology in which a well cellar is punched on a ridge body during transplanting. The upper half of the well cellar is cylindrical in shape, and the lower half is conical in shape. Then, crop seedlings are vertically dropped into the well cellar. Since the conical angle of the substrate part at the root of the crop seedlings is equal to the conical angle of the lower half of the well cellar, the posture of the crop seedlings always remains vertically upward. Finally, the substrate at the root of the crop seedlings is completely covered with crushed soil with an appropriate moisture content.

[0003] Currently, well cellar transplanting is carried out by manually carrying a well cellar making machine, using a small gasoline engine as the power source, and holding a hole punching device to perform the punching operation. Although this method of making well cellars meets the requirements of agronomic planting, it has low automation, high labor intensity, and low work efficiency, and cannot be widely promoted and applied on a large scale. Some well cellar injection and seedling transplanting machines are disclosed in the prior art. Since water needs to be carried on the machine to assist in the formation of the well cellar, the machine is heavy, the walking speed is slow, and the transplanting efficiency is low. The water injection volume per well cellar is affected by factors such as the walking speed of the machine and the drilling speed of the drill bit into the soil, which has a certain impact on the quality of the well cellar formation. Moreover, the well cellar punching device of the existing well cellar punching and transplanting machine is a parallel four-bar mechanism - gear - sprocket combined structure. During the process of making the well cellar, this structure is significantly affected by the walking speed of the machine. When the walking speed of the machine is slow, the well cellar forming effect is good. Once the speed is fast, the well cellar forming effect is poor, and a flared shape or non-formed situation occurs. Summary of the Invention

[0004] The object of the present invention is to address the defects of existing well cellar transplanting machines and provide an integrated machine for efficiently punching well cellars and transplanting seedlings at zero speed, which can achieve functions such as maintaining zero speed in the horizontal direction of the hole-forming drill bit and punching well cellars in the vertical direction, as well as the subsequent process of transplanting seedlings under the condition of the machine walking at a high speed, and complete the crop seedling planting operation.

[0005] To achieve the above object, the technical solution proposed by the present invention is as follows:

[0006] An integrated machine for efficiently punching well cellars and transplanting seedlings at zero speed includes a self-propelled chassis and a driving device, a well cellar punching mechanism, a seedling tray assembly, and a seedling transplanting device arranged in sequence on the self-propelled chassis. The driving device is installed on the self-propelled chassis. After being decelerated by a reducer, one path of power is transmitted to the walking wheels of the self-propelled chassis, and the other path of power is respectively transmitted to the seedling tray assembly and the well cellar punching mechanism. The seedling transplanting device is located below the seedling tray assembly;

[0007] The described well cellaring mechanism includes a first gear, a second gear, a zero-speed cellar welding unit, a well cellaring device, and a spring; the zero-speed cellar welding unit includes a rotating shaft, an irregular cam, a crank, a shaft, and a roller; the well cellaring device includes a support frame, with a hole-forming drill bit installed inside the support frame, and a limiting frame and a rotating wheel are also provided on the support frame; the first gear is driven by the power transmitted by the driving device, the first gear meshes externally with the second gear, the second gear is connected to the rotating shaft, along the axis direction of the rotating shaft, an irregular cam and a crank are welded on the rotating shaft, and the irregular cam and the crank are set at a set phase angle, the crank is welded and connected to the shaft, the shaft is in rolling connection with the roller, the irregular cam is in a rolling higher pair connection with the rotating wheel, and the roller is in a sliding higher pair connection with the limiting frame; the well cellaring device is connected to the self-propelled chassis through a spring, and the well cellaring device can slide relative to the self-propelled chassis.

[0008] As a further technical solution, it further includes a clutch sprocket. The input end of the clutch sprocket is connected to the power output end of the reducer through a chain, and its output end is transmitted to the seedling tray assembly through a first chain transmission mechanism and to the well cellaring mechanism through a second chain transmission mechanism.

[0009] As a further technical solution, the first gear is coaxially connected to the sprocket at the output end of the second chain transmission mechanism.

[0010] As a further technical solution, during the process that the contact point between the rotating wheel and the irregular cam moves from the base point to the highest point, the hole-forming drill bit completes the whole process from entering the soil to emerging from the soil. When the contact point suddenly changes from the highest point to the base circle, during the process of contacting on the base circle, the hole-forming drill bit moves from the highest position to the position in contact with the ground.

[0011] As a further technical solution, a slide rail is provided on the self-propelled chassis, and the bottom of the support frame is arranged on the slide rail, and the two form a sliding connection.

[0012] As a further technical solution, a limiting and guiding assembly is further provided inside the support frame, and the vertical movement of the hole-forming drill bit is guided and limited through the limiting and guiding assembly.

[0013] As a further technical solution, the seedling tray assembly includes two sprockets, a chain plate, and a limiting rod. One of the sprockets is a driving sprocket, and the other is a driven sprocket. The two sprockets are connected by the chain plate, and a number of seedling trays are provided on the chain plate. Driven by the sprockets, the seedling trays make a circular rotation. An arc-shaped limiting rod is provided below the number of seedling trays, and a notch is provided at the position above the seedling dropping device in the arc-shaped limiting rod.

[0014] As a further technical solution, an openable bottom cover is provided at the bottom of the seedling tray, and a torsion spring is provided inside the seedling tray, and the torsion spring drives the bottom cover to open.

[0015] As a further technical solution, the seedling planting device includes an upper housing and a lower housing. The upper housing is open at both the top and the bottom, and its area gradually decreases. An upper connecting member is provided at the bottom of the upper housing. The lower housing includes a left half housing and a right half housing. The left half housing and the right half housing are semi-conical, and lower connecting members are provided at the upper parts. The lower connecting members are connected to the upper connecting member by bolts.

[0016] As a further technical solution, two profiling wheels are provided at the front end of the self-propelled chassis.

[0017] For the well cell drilling device of this machine, during the machine's movement, it can achieve regular reciprocating movement back and forth, and the hole-forming drill bit can achieve regular reciprocating movement up and down. The sprocket at the end of the transmission system and the first gear have the same rotational speed, and the irregular cam and the second gear have the same rotational speed. Through the meshing movement of the first gear and the second gear, during the machine's movement, the movement direction of the well cell drilling device is opposite to the machine's movement direction. Under the action of the irregular cam, the movement speed of the well cell drilling device is equal to the machine's movement speed. At this time, the hole-forming drill bit has the zero-speed condition in the horizontal direction. The crank and the irregular cam are set according to the set phase angle, and the drill bit realizes the up and down movement to drill the well cell in the vertical direction. During the process that the contact point between the well cell drilling device and the irregular cam moves from the base point to the highest point, the hole-forming drill bit completes the whole process from entering the soil to emerging from the soil. The contact point suddenly changes from the highest point to the base circle. During the process of contacting on the base circle, the hole-forming drill bit moves from the highest position to the position contacting the ground. At this time, a complete planting cycle is completed, and then this action is repeated. During the machine's forward movement, the hole-forming drill bit remains stationary relative to a certain point on the ground in the horizontal direction and makes up and down movement in the vertical direction to drill the well cell. During the machine's forward movement, the hole-forming drill bit continuously realizes efficient zero-speed well cell drilling. Under the action of the spring, the roller of the well cell drilling device is always in close contact with the irregular cam. During the machine's movement, the well cell drilling device moves according to the shape of the irregular cam, realizing regular reciprocating movement back and forth of the well cell drilling device and regular up and down movement of the hole-forming drill bit.

[0018] Compared with the prior art, the advantages and positive effects of the present invention are:

[0019] (1) The self-propelled chassis is equipped with a reciprocating well cell drilling device. During the machine's movement, this well cell drilling device can achieve rapid reciprocating movement. Under the action of the spring, the entire well cell drilling device is always in close contact with the irregular cam. During the reciprocating movement of the well cell drilling device, there will be no noise and the movement is stable, laying a foundation for ensuring the quality of the well cell, which is beneficial to improving the mechanization level and planting scale of the tobacco planting industry.

[0020] (2) Through the combined action of the irregular cam and the well cell forming device, during the process of the hole-forming drill bit entering and exiting the soil, the moving speed of the well cell forming device is equal in magnitude and opposite in direction to the advancing speed of the machine. The hole-forming drill bit remains stationary in the horizontal direction and moves up and down in the vertical direction, realizing the formation of the well cell with standard shape and stable quality.

[0021] (3) The crank and the irregular cam are arranged according to the set phase angle. During the process that the contact point between the well cell forming device and the irregular cam moves from the base point to the highest point, the hole-forming drill bit completes the whole process from entering the soil to exiting the soil. When the contact point suddenly changes from the highest point to the base circle, during the process of contacting on the base circle, the hole-forming drill bit moves from the highest position to the position contacting the ground. At this time, a complete planting cycle is completed, with fast speed and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The schematic drawings forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0023] Figure 1 is the schematic diagram of the whole machine structure according to one or more embodiments of the present invention Figure 1 ,

[0024] Figure 2 is the schematic diagram of the whole machine structure according to one or more embodiments of the present invention Figure 2 ,

[0025] Figure 3 is the schematic diagram of the well cell forming mechanism according to one or more embodiments of the present invention,

[0026] Figure 4 is the schematic diagram of the well cell forming device according to one or more embodiments of the present invention Figure 1 ,

[0027] Figure 5 is the schematic diagram of the well cell forming device according to one or more embodiments of the present invention Figure 2 ,

[0028] Figure 6 is the schematic diagram of zero-speed well cell welding according to one or more embodiments of the present invention;

[0029] Figure 7 is the schematic diagram of the well cell forming mechanism, the seedling tray assembly and the seedling throwing device according to one or more embodiments of the present invention Figure 1 ;

[0030] Figure 8 is the schematic diagram of the well cell forming mechanism, the seedling tray assembly and the seedling throwing device according to one or more embodiments of the present invention Figure 2 ;

[0031] Figure 9 is a schematic view of a seedling tray assembly according to one or more embodiments of the present invention;

[0032] Figure 10 is a schematic view of a seedling tray according to one or more embodiments of the present invention;

[0033] Figure 11 is a schematic view of a limiting rod of a seedling tray assembly according to one or more embodiments of the present invention;

[0034] Figure 12 is a schematic view of a seedling dropping device according to one or more embodiments of the present invention;

[0035] In the figure: 1, self-propelled chassis; 2, gasoline engine; 3, gearbox; 4, well cell drilling mechanism; 5, sprocket; 6, first gear; 7, second gear; 8, zero-speed well cell welding; 9, rotating shaft; 10, irregular cam; 11, crank; 12, shaft; 13, roller; 14, well cell drilling device; 15, spring; 16, slide rail; 17, support frame; 18, first vertical pipe; 19, second vertical pipe; 20, third vertical pipe; 21, fourth vertical pipe; 22, first horizontal pipe; 23, second horizontal pipe; 24, third horizontal pipe; 25, fourth horizontal pipe; 26, fifth horizontal pipe; 27, sixth horizontal pipe; 28, seventh horizontal pipe; 29, eighth horizontal pipe; 30, first support pipe; 31, second support pipe; 32, third support pipe; 33, fourth support pipe; 34, fifth support pipe; 35, upper plate; 36, lower plate; 37, limiting and guiding assembly; 38, first guiding shaft; 39, second guiding shaft; 40, first positioning sleeve; 41, second positioning sleeve; 42, first upper fixing block; 43, second upper fixing block; 44, first lower fixing block; 45, second lower fixing block; 46, support and limit welding; 47, fixing plate; 48, limiting frame; 49, micro motor; 50, hole forming drill bit; 51, rotating wheel; 52, seedling tray assembly; 53, seedling dropping device; 54, electric control system; 55, clutch; 56, first chain drive mechanism, 57, second chain drive mechanism, 58, transmission shaft, 59, sprocket, 60, chain plate, 61, seedling tray; 62, bottom cover, 63, profiling wheel; 64 limiting rod; 531, upper shell, 5321, left half shell, 5322, right half shell, 533, upper connecting piece, 534, lower connecting piece. Detailed embodiments

[0036] It should be noted that the following detailed description is exemplary and is intended to provide further illustration of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof;

[0038] For the convenience of description, if the words "upper", "lower", "left", and "right" appear in the present invention, they only represent the same directions as the upper, lower, left, and right of the accompanying drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention.

[0039] As described in the background art, some well cell injection and seedling transplanting machines are disclosed in the prior art. However, the existing machines need to carry water to assist in the formation of well cells. The machines are heavy, have a slow walking speed, and low transplanting efficiency. The water injection volume per well cell is affected by factors such as the machine walking speed and the drill bit penetration speed, which has a certain impact on the quality of well cell formation. Moreover, the well cell punching and transplanting device of the existing well cell punching and transplanting machine is a parallel four-bar mechanism-gear-sprocket combined structure. This structure is significantly affected by the machine walking speed during the well cell production process. When the machine walking speed is slow, the well cell forming effect is good. Once the speed is fast, the well cell forming effect is poor, and a flared shape or non-formation occurs.

[0040] Embodiment

[0041] In a typical embodiment of the present invention, as Figures 1 - 6 shown, a high-efficiency zero-speed well cell injection and seedling integration machine is proposed. This well cell injection and seedling integration machine does not carry water and only has the functions of well cell drilling and seedling throwing. Specifically, in the planting process, first, ridges are formed, and the ridge shape conforms to the requirements of planting agronomy. After the ridges are formed, the soil particle size and compactness meet the conditions for well cell formation. Subsequently, drip irrigation is carried out on the tobacco ridges to make the soil moisture content meet the conditions for well cell formation. Then, the high-efficiency zero-speed well cell injection and seedling integration machine carries out well cell drilling. In this way, the integration machine does not need to carry water, reducing the weight of the machine, accelerating the working speed, and improving the planting efficiency. The high-efficiency zero-speed well cell injection and seedling integration machine proposed in this embodiment can achieve functions such as keeping the zero speed in the horizontal direction of the hole-forming drill bit and drilling well cells in the vertical direction, as well as the subsequent process of seedling throwing under the condition of the machine walking at a high speed, and completing the crop seedling planting operation. The well cell drilling device of this machine can achieve regular reciprocating motion back and forth and regular reciprocating motion up and down of the hole-forming drill bit during the machine walking process.

[0042] The object of the present invention is to provide a high-efficiency zero-speed well cell seedling planting integrated machine, which adopts the following technical solutions:

[0043] It includes a self-propelled chassis 1, a gasoline engine 2, a gearbox 3, a well cell drilling mechanism 4, a seedling tray assembly 52, a seedling planting device 53, and an electric control system 54 that are arranged in sequence on the self-propelled chassis 1; the gasoline engine 2 is installed above the middle of the rear end of the self-propelled chassis 1; the gearbox 3 is installed in the middle of the rear end of the self-propelled chassis 1, and the gearbox 3 has

[0044] It is located below and behind the gasoline engine 2; the well cell drilling mechanism 4 is installed at the front end position of the self-propelled chassis; the seedling tray assembly 52 is installed above the middle of the self-propelled chassis 1, behind and above the well cell drilling mechanism 4; the seedling planting device 53 is installed in the middle of the self-propelled chassis 1, behind the well cell drilling mechanism 4 and below the seedling tray assembly 52; the electric control system 54 is distributed on both sides above the rear end frame of the self-propelled chassis 1 and on one side of the seedling tray assembly support plate.

[0045] Furthermore, the well cell drilling mechanism 4 is composed of a sprocket 5, a first gear 6, a second gear 7, a zero-speed well cell welding 8, a well cell drilling device 14, and a spring 15. Among them, the sprocket 5 is connected to the first gear 6 coaxially by a key; the first gear 6 is meshed with the second gear 7 externally; the second gear 7 is installed on one side of the rotating shaft 9 of the zero-speed well cell welding 8 and is connected to the rotating shaft 9 by a key; the irregular cam 10 of the zero-speed well cell welding 8 is in rolling high pair connection with the rotating wheel 51 of the well cell drilling device; the roller 13 of the zero-speed well cell welding is in sliding high pair connection with the limit frame 48 of the well cell drilling device; the well cell drilling device 14 is connected to the support rod of the self-propelled chassis 1 through the spring 15. A reciprocating well cell drilling device 14 is equipped on the self-propelled chassis. During the walking process of the machine, the well cell drilling device 14 can achieve rapid reciprocating motion; under the action of the spring 15, the well cell drilling device 14 is always tightly attached to the irregular cam. During the reciprocating motion of the well cell drilling device 14, there will be no noise and the motion is stable, laying a foundation for ensuring the quality of the well cell and being beneficial to improving the mechanization level and planting scale of the tobacco planting industry.

[0046] Furthermore, the zero-speed well cell welding joint 8 is composed of a rotating shaft 9, an irregular cam 10, a crank 11, a shaft 12, a roller 13, etc. The rotating shaft 9 is driven to rotate by the above-mentioned second gear 7. At the same time, the rotating shaft 9 is welded and connected to the irregular cam 10 and the crank 11 respectively, that is, the irregular cam 10 and the crank 11 are fixed on the rotating shaft 9 and rotate together with the rotating shaft 9. The irregular cam 10 and the crank 11 are arranged at a set phase angle. At the same time, the other end of the crank 11 is welded and connected to the shaft 12, and the roller 13 is in rolling connection with the shaft 12; the roller 13 is in high pair rolling contact with the limit frame 48 in the well cell drilling device; among them, the setting of the phase angle between the crank 11 and the irregular cam 10 is carried out according to the following conditions: during the process that the contact point between the rotating wheel 51 and the irregular cam 10 moves from the base point to the highest point, the hole-forming drill bit 50 completes the whole process from entering the soil to emerging from the soil. The contact point suddenly changes from the highest point to the base circle. During the process of contacting on the base circle, the hole-forming drill bit moves from the highest position to the position contacting the ground; among them, the shape of the irregular cam 10 is designed according to the forward speed of the self-propelled chassis 1, the relative backward speed of the hole-forming drill bit 50 with respect to the chassis, and the downward and upward displacements of the hole-forming drill bit 50, etc.

[0047] Furthermore, the well cell drilling device is composed of a slide rail 16, a support frame 17, a limit guiding component 37, a support limit welding joint 46, a micro motor 49, a hole-forming drill bit 50, a rotating wheel 51, etc. The slide rail 16 is fixed on the self-propelled chassis 1, and the bottom of the support frame 17 is arranged on the slide rail 16. The support frame 17 can slide along the slide rail 16 under the action of an external force; the limit guiding component 37 is fixed at the middle position of the support frame 17, and the support limit welding joint 46 is sleeved into the limit guiding component 37. The limit guiding component 37 limits and guides the movement direction of the support limit welding joint 46, and the support limit welding joint 46 can move up and down along the limit guiding component 37; and the limit frame 48 of the support limit welding joint 46 is in high pair rolling contact with the roller 13 of the zero-speed well cell welding joint. The micro motor 49 is fixed on the fixed plate of the support limit welding joint 46, and the micro motor 49 is fixedly connected to the hole-forming drill bit 50. Through the combined action of the irregular cam 10 and the well cell drilling device, during the process of the hole-forming drill bit 50 entering and emerging from the soil, the moving speed of the well cell drilling device is equal in magnitude and opposite in direction to the forward speed of the chassis. The hole-forming drill bit 50 remains stationary in the horizontal direction and moves up and down in the vertical direction to realize well cell drilling, and the well cell is formed with standard shape and stable quality.

[0048] Further, the support frame 17 is composed of a first vertical pipe 18, a second vertical pipe 19, a third vertical pipe 20, a fourth vertical pipe 21, a first horizontal pipe 22, a second horizontal pipe 23, a third horizontal pipe 24, a fourth horizontal pipe 25, a fifth horizontal pipe 26, a sixth horizontal pipe 27, a seventh horizontal pipe 28, an eighth horizontal pipe 29, a first support pipe 30, a second support pipe 31, a third support pipe 32, a fourth support pipe 33, a fifth support pipe 34, an upper plate 35, a lower plate 36, etc. Among them, four vertical pipes and eight horizontal pipes form a rectangular frame structure, and the pipes are welded and connected to each other. The first support pipe 30 and the second support pipe 31 are located at the top of the rectangular frame structure and are used to fix the upper plate 35; the third support pipe 32 and the fourth support pipe 33 are located at the bottom of the rectangular frame structure and are used to fix the lower plate 36; the fifth support pipe 34 is located on the side of the rectangular frame structure, and the fifth support pipe 34 is connected to the rotating wheel 51; the upper plate is bolted to the first support pipe and the second support pipe, and the lower plate is bolted to the third support pipe and the fourth support pipe; the upper plate and the lower plate are mainly used to fix the limit and guide assembly.

[0049] Further, the limit and guide assembly 37 is composed of a first guide shaft 38, a second guide shaft 39, a first positioning sleeve 40, a second positioning sleeve 41, a first upper fixing block 42, a first lower fixing block 44, a second upper fixing block 43, a second lower fixing block 45, etc. Among them, the first positioning sleeve 40 is inserted into the first guide shaft 38 and can slide up and down. The two ends of the first guide shaft 38 are respectively fixedly connected to the upper plate and the lower plate of the support frame by the first upper fixing block 42 and the first lower fixing block 44, and the two ends of the second guide shaft 39 are respectively fixedly connected to the upper plate and the lower plate of the support frame by the second upper fixing block 43 and the second lower fixing block 45.

[0050] Further, the support and limit welding 46 is composed of a fixing plate 47 and a limit frame 48. The limit frame 48 is welded to one side of the fixing plate 47. The two positioning holes of the fixing plate 47 are respectively bolted to the first positioning sleeve 40 and the second positioning sleeve 41; the micro motor 49 is fixed on the fixing plate 47.

[0051] Further, as Figure 7 、 Figure 8 、 Figure 9 shown, the seedling tray assembly in this embodiment includes two sprockets 59, a chain plate 60 and a limit rod 64. One of the sprockets 59 is a driving sprocket, and the other is a driven sprocket. The two sprockets are connected by the chain plate 60. A number of seedling trays are arranged on the chain plate 60. Driven by the sprockets, the seedling trays rotate in a cycle; when a certain seedling tray is aligned above the seedling dropping device, the base at the bottom of the seedling tray opens, and the crop seedlings fall into the seedling dropping device 53, and the crop seedlings fall into the well cellar through the seedling dropping device 53;

[0052] As Figure 11As shown, the limiting rod 64 in this embodiment is arc-shaped. A notch is provided at the upper position of the arc-shaped limiting rod above the seedling dropping device, and a bent guiding section is provided at the notch position. When the seedling tray 61 moves to this notch position, the bottom cover of the seedling tray is automatically opened under the action of the torsion spring, and then as the chain plate 60 rotates, it will gradually close under the action of the bent guiding section.

[0053] Furthermore, as Figure 10 shown, a bottom cover that can be opened is provided at the bottom of the seedling tray 61, and a torsion spring is provided inside the seedling tray. When the torsion spring drives the bottom cover to reach the notch position, it can be automatically opened.

[0054] Furthermore, the seedling dropping device 53 includes an upper housing 531 and a lower housing. The upper housing 531 is open at both the top and bottom, and its area gradually becomes smaller. An upper connecting piece 533 is provided at the bottom of the upper housing 531; the lower housing includes a left half housing 5321 and a right half housing 5322. The left half housing and the right half housing are semi-conical, and lower connecting pieces 534 are provided at the upper parts. The lower connecting pieces are connected to the upper connecting piece by bolts. Designing the seedling dropping device 53 in this form is mainly to facilitate adjusting the area of the seedling dropping device according to the different sizes and shapes of the seedlings.

[0055] Furthermore, two profiling wheels 63 are provided at the front end of the self-propelled chassis. The main function of the profiling wheels 63 is to keep the integrated machine moving along the shape of the ridge.

[0056] The specific working principle is as follows:

[0057] The sprocket 5 at the end of the transmission system and the first gear 6 have the same rotational speed, and the irregular cam 10 and the second gear 7 have the same rotational speed. Through the meshing movement of the first gear 6 and the second gear 7, during the walking process of the machine, the movement direction of the well cellar device is opposite to the walking direction of the machine. Under the action of the irregular cam 10, the walking speed of the well cellar device is made equal to the walking speed of the machine. At this time, the hole forming drill bit has the zero speed condition in the horizontal direction.

[0058] The crank 11 and the irregular cam 10 are set at a set phase angle. The hole-forming drill bit 50 moves up and down in the vertical direction to perform the function of digging a well cell. During the process that the contact point between the well cell digging device and the irregular cam 10 moves from the base point to the highest point, the hole-forming drill bit 50 completes the whole process from entering the soil to emerging from the soil. When the contact point suddenly changes from the highest point to the base circle, during the process of contacting on the base circle, the hole-forming drill bit moves from the highest position to the position contacting the ground. At this time, a complete planting cycle is completed, and then this action is repeated. During the forward movement of the machine, the hole-forming drill bit 50 remains stationary in the horizontal direction relative to a certain point on the ground and moves up and down in the vertical direction to dig the well cell. During the forward movement of the machine, the hole-forming drill bit continuously realizes efficient zero-speed well cell digging. Under the action of the spring 15, the rolling wheel 51 of the well cell digging device is always in contact with the irregular cam 10. During the walking process of the machine, the well cell digging device moves according to the shape of the irregular cam 10, realizing the regular reciprocating movement of the well cell digging device in the front and back directions and the regular up and down movement of the hole-forming drill bit.

[0059] Furthermore, under the condition that the soil moisture content, the soil particle size and the compactness after ridging meet the conditions for the formation of the well cell, this transplanter can be used for both above-film and below-film well cell digging; the specific working process is as follows:

[0060] The gasoline engine drives the input pulley of the gearbox through a V-belt. The output shaft of the gearbox is driven by a chain. One way is transmitted to the walking wheels of the chassis, so that the chassis obtains the forward power and speed; the other way is transmitted to the clutch sprocket, and then is respectively transmitted to the well cell digging device through the second chain drive mechanism 57 and to the seedling tray assembly through the first chain drive mechanism 56; when the transplanter is not working, the clutch is opened, and both the well cell digging device and the seedling tray assembly do not work, and the machine can travel. When the transplanter is working, the clutch is closed, and both the well cell digging device and the seedling tray assembly are in a moving state. A pair of gears play a reversing role. During work, under the action of the spring tension, the rollers of the well cell digging device are always in contact with the irregular cam. The well cell digging device moves according to the shape of the irregular cam, and has the same speed magnitude and opposite direction as the walking chassis in the horizontal direction. The hole-forming drill bit is stationary in the horizontal direction relative to the well cell digging point on the ground, and at the same time the hole-forming drill bit moves up and down in the vertical direction. The micro motor drives the hole-forming drill bit to rotate. Under the above conditions, the hole-forming drill bit completes the zero-speed well cell digging function. The machine continuously walks, and the hole-forming drill bit continuously repeats well cell digging. The seedling-throwing duckbill keeps a set plant spacing from the drill bit, and the seedling-throwing duckbill realizes intermittent seedling leakage while digging the well cell, and the crop seedlings fall into the well cell.

[0061] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An efficient zero-speed well cell seedling planting integrated machine, characterized in that: It includes a self-propelled chassis and a driving device, a well cell forming mechanism, a seedling tray assembly, and a seedling planting device that are sequentially arranged on the self-propelled chassis. The driving device is installed on the self-propelled chassis. After the driving device is decelerated by a reducer, one path of power is transmitted to the driving wheels of the self-propelled chassis, and the other path of power is respectively transmitted to the seedling tray assembly and the well cell forming mechanism. Below the seedling tray assembly is the seedling planting device. The well cell forming mechanism includes a first gear, a second gear, a zero-speed well cell welding assembly, a well cell forming device, and a spring. The zero-speed well cell welding assembly includes a rotating shaft, an irregular cam, a crank, a shaft, and a roller. The well cell forming device includes a support frame, and a hole forming drill bit is installed inside the support frame. A limiting frame and a rotating wheel are also provided on the support frame. The first gear is driven by the power transmitted from the driving device. The first gear is externally meshed with the second gear. The second gear is connected to the rotating shaft. Along the axis direction of the rotating shaft, an irregular cam and a crank are welded on the rotating shaft, and the irregular cam and the crank are arranged at a set phase angle. The crank is welded and connected to the shaft. The shaft is in rolling connection with the roller. The irregular cam is in rolling high pair connection with the rotating wheel. The roller is in sliding high pair connection with the limiting frame. The well cell forming device is connected to the self-propelled chassis through a spring, and the well cell forming device can slide relative to the self-propelled chassis. During the process that the contact point between the rotating wheel and the irregular cam moves from the base point to the highest point, the hole forming drill bit completes the whole process from entering the soil to emerging from the soil. When the contact point suddenly changes from the highest point to the base circle, during the process of contact on the base circle, the hole forming drill bit moves from the highest position to the position in contact with the ground. A limiting and guiding assembly is also provided inside the support frame, and the vertical movement of the hole forming drill bit is guided and limited by the limiting and guiding assembly. The seedling tray assembly includes two sprockets, a chain plate, and a limiting rod. One of the sprockets is a driving sprocket, and the other is a driven sprocket. The two sprockets are connected by the chain plate. A number of seedling trays are provided on the chain plate. Driven by the sprockets, the seedling trays make a circular motion. An arc-shaped limiting rod is provided below the number of seedling trays, and a notch is provided at the position above the seedling planting device in the arc-shaped limiting rod.

2. The high-efficiency zero-speed well and cellar seedling dropping integrated machine according to claim 1, characterized in that: It also includes a clutch sprocket. The input end of the clutch sprocket is connected to the power output end of the reducer through a chain. Its output end is transmitted to the seedling tray assembly through a first chain transmission mechanism and to the well cell forming mechanism through a second chain transmission mechanism. The first gear is coaxially connected to the sprocket at the output end of the second chain transmission mechanism.

3. The high-efficiency zero-speed well cell seedling dropping integrated machine according to claim 1, characterized in that: Sliding rails are provided on the self-propelled chassis, and the bottom of the support frame is arranged on the sliding rails, and the two form a sliding connection.

4. The high-efficiency zero-speed well cell seedling dropping integrated machine according to claim 1, wherein: A micro motor is provided at the top of the hole forming drill bit, and the micro motor drives the hole forming drill bit to rotate.

5. The high-efficiency zero-speed well cell seedling planting integrated machine according to claim 1, characterized in that: An openable bottom cover is provided at the bottom of the seedling tray, and a torsion spring is provided inside the seedling tray, and the torsion spring drives the bottom cover to open.

6. The high-efficiency zero-speed well cell seedling dropping integrated machine according to claim 1, characterized in that: The seedling planting device includes an upper housing and a lower housing. The upper housing is open at both the top and the bottom, and the area gradually becomes smaller. An upper connecting piece is provided at the bottom of the upper housing. The lower housing includes a left half housing and a right half housing. The left half housing and the right half housing are semi-conical, and lower connecting pieces are provided at the upper parts. The lower connecting pieces are connected to the upper connecting piece through bolts.

7. The high-efficiency zero-speed well cell seedling planting integrated machine according to claim 1, characterized in that: Two profiling wheels are provided at the front end of the self-propelled chassis.

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