Rotary well cellar multi-station zero-speed vertical cellar digging mechanism, device and method

Abstract

The application discloses a rotary well cellar multi-station zero-speed vertical cellar digging mechanism, equipment and method, solves the problem that the existing cellar digging mechanism is easy to scratch the well cellar wall and has a complex structure, has the beneficial effects of simple and reasonable structure and high cellar digging quality, and specifically has the following scheme: a rotary well cellar multi-station zero-speed vertical cellar digging mechanism, which comprises at least three groups of transmission assemblies, one end of each transmission assembly is fixed to a center shaft, one end of a connecting piece is rotatably connected to the other end of the transmission assembly, a duckbill planting mechanism is used for accommodating tobacco seedlings, the other end of the connecting piece is connected to the duckbill planting mechanism, the duckbill planting mechanism comprises two half duckbill components, one of the half duckbill components can swing, the position of the duckbill planting mechanism is perpendicular to the ground surface when the duckbill planting mechanism is working, one end of a pull rod is movably connected to the side wall of the transmission assembly, and the other end of the pull rod is movably connected to the swingable duckbill component of the duckbill planting mechanism.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to a rotary well-cellar multi-station zero-speed vertical cellar-making mechanism, equipment, and method. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] Well-cellar transplanting is an advanced transplanting technique widely used in my country's main tobacco-producing areas. By digging regular wells in the field in advance and transplanting tobacco seedlings into them, the survival rate of seedlings can be significantly improved, the recovery period can be shortened, and the yield and quality of tobacco leaves can be increased. The digging of wells is the core link in well-cellar transplanting, and its efficiency and quality directly determine the transplanting progress and effect.

[0004] Currently, well and pit drilling operations mainly employ three methods: manual drilling, single-station mechanical drilling, and multi-station continuous drilling. Each method has significant limitations. Manual pit making: This method relies on hand-held pit makers to manually press and shape the pits. While the tools are inexpensive, the labor intensity is extremely high, with an operating efficiency of only 0.5-1 acre / day. Furthermore, the pits have poor consistency in depth and diameter, and a high tilt rate, which cannot meet the needs of large-scale planting.

[0005] Single-station mechanical pit making: It adopts a vertical impact or rotary extrusion single-head pit making mechanism, driven by small power machinery, which increases the working efficiency to 3-5 acres / day, but requires frequent start and stop of the machine, resulting in poor work continuity; the mechanism has large impact vibration during pit making, which can easily cause the pit to tilt, and the pit making resistance is large in compacted soil, and the pit making head is severely worn.

[0006] Multi-station continuous pit digging: Multiple pit digging heads are driven by a rotating disc to operate continuously, with an efficiency of 10-15 mu / day. However, the pit digging heads complete the pit digging action while moving with the machine, and there is relative movement with the ground, which will scrape the pit walls, causing the pit walls to become rough and collapse. Moreover, the pit tilt rate is as high as 15%-20%. At the same time, the existing equipment does not have soil pretreatment function. In dry, compacted soil or clay soil, the pit forming rate is low, and problems such as pit deformation and insufficient depth are prone to occur.

[0007] Existing technologies also disclose transplanting devices that use non-circular gear transmission mechanisms or gear transmission mechanisms and non-circular gear transmission mechanisms for transplanting. Some of these devices can achieve double-row staggered planting, but they have problems such as complex structure, high manufacturing cost, multiple transmission chains, high failure rate, and difficult maintenance.

[0008] In other words, existing pit drilling mechanisms are inefficient, prone to scraping the pit walls, and are carried out separately from seeding, making the operation more complex. Existing technologies have publicly available pit drilling devices that use an irregular cam transmission system to keep the drill bit at zero speed in the horizontal direction. However, these devices use a cam-slider mechanism, which has a complex structure, requires high precision in cam profile machining, has high manufacturing costs, and operates in a single station with low efficiency. Summary of the Invention

[0009] To address the shortcomings of existing technologies, the purpose of this invention is to provide a rotary multi-station zero-speed vertical pit-making mechanism. This mechanism achieves zero-speed vertical pit-making through multi-station rotational synchronization technology, solving the problems of pit tilting, poor forming quality, and low operating efficiency in existing pit-making equipment. At the same time, it reduces pit-making resistance, extends equipment service life, and is suitable for pit-making operations under different soil conditions and planting patterns.

[0010] To achieve the above objectives, the present invention is implemented through the following technical solution: A rotary well-drilling multi-station zero-speed vertical well-drilling mechanism includes: A fixed bracket, with a central axis passing through the fixed bracket and rotatable relative to the fixed bracket; At least three sets of transmission components, with one end of each transmission component fixed to the central shaft; Connectors, the number of which is the same as the number of transmission components, and one end of the connector is rotatably connected to the other end of the transmission component; The duckbill planting mechanism is used to hold tobacco seedlings. The other end of the connector is connected to the duckbill planting mechanism. The duckbill planting mechanism includes two duckbill parts, one of which can swing. When the duckbill planting mechanism is in operation, its position is perpendicular to the ground surface. The pull rod has one end movably connected to the side wall of the transmission component, and the other end movably connected to the swingable duckbill component in the duckbill planting mechanism. The pull rod is connected to the duckbill component on the side away from the transmission component. When the duckbill planting mechanism encounters resistance when it comes into contact with the soil, the connecting part rotates relative to the transmission component, the distance between the swingable duckbill component and the transmission component decreases, and the pull rod pushes the swingable duckbill component to open at a set angle relative to the other duckbill component.

[0011] As described above, in a rotary well-drilling multi-station zero-speed vertical well-drilling mechanism, the connection point between the pull rod and the transmission component is located close to the connector. The distance between the connection point between the pull rod and the transmission component and the first end of the transmission component is 1 / 5 to 1 / 4 of the length of the transmission component. The first end of the transmission component is the connection end between the transmission component and the connector.

[0012] As described above, in a rotary well-cellar multi-station zero-speed vertical well-cellar drilling mechanism, the end of the pull rod away from the transmission assembly is connected to the opening and closing rod of the duckbill planting mechanism, and the opening and closing rod is connected to the swingable duckbill component.

[0013] As described above, in a rotary well-cellar multi-station zero-speed vertical well-cellar drilling mechanism, the transmission component is a triangular transmission rod located at both ends of the central shaft. The triangular transmission rod includes three evenly distributed transmission rods, which protrude from the fixed support. When the duckbill planting mechanism is in its lowest position, the bottom end of the transmission rod is higher than the bottom end of the duckbill planting mechanism.

[0014] As described above, in a rotary well-cellar multi-station zero-speed vertical well-cellar drilling mechanism, the connecting component is a T-shaped connecting rod. The first section of the T-shaped connecting rod is connected to the triangular transmission rods at both ends of the central shaft, and the second section of the T-shaped connecting rod is connected to the duckbill planting mechanism.

[0015] As described above, a rotary well-cellar multi-station zero-speed vertical cellar-making mechanism includes a duckbill planting mechanism comprising a receiving cylinder. The distance between the top of the receiving cylinder and the bottom of the duckbill component is 1 / 2 to 5 / 6 of the height of the tobacco seedling. A fixing ring is fixed around the receiving cylinder. One side of the fixing ring is connected to the connecting piece. An installation frame is movably installed on the bottom side of the fixing ring away from the receiving cylinder. The locking rod passes through the installation frame and connects to the duckbill component. The installation frame corresponds one-to-one with the duckbill component. An elastic element connects the installation frames on both sides.

[0016] As described above, in a rotary well-drilling multi-station zero-speed vertical well-drilling mechanism, the receiving cylinder extends beyond the fixed ring, and the top side of the receiving cylinder is funnel-shaped.

[0017] As described above, in a rotary well-drilling multi-station zero-speed vertical well-drilling mechanism, both the transmission component and the connecting component are provided with weight-reducing holes.

[0018] Secondly, the present invention also provides an agricultural device, including a frame and a rotary well-cellar multi-station zero-speed vertical well-cellar mechanism, wherein the fixed bracket is installed on the frame and the output shaft of the rotating motor passes through the fixed bracket and is connected to the central shaft.

[0019] The working method of the rotary well and cellar multi-station zero-speed vertical cellar drilling mechanism described above includes the following: The central shaft drives the transmission assembly to rotate, which in turn drives the duckbill planting mechanism to rotate through the connecting parts; When the rotary well-cellar multi-station zero-speed vertical well-cellar mechanism moves to the bottom of the fixed support, the duckbill planting mechanism will dig a well-cellar in the field, and the pull rod fixed to the duckbill planting mechanism will push open one side of the duckbill component to make it open, and transplant the tobacco seedlings into the well-cellar. Then, driven by the transmission component, the duckbill planting mechanism moves upward and closes to start a new round of transplanting operations. During the upward movement of the duckbill planting mechanism, under the pulling action of the pull rod, the duckbill planting mechanism located on the left side of the lowest transmission component moves to the right side of the transmission component. As the duckbill planting mechanism continues to rotate upward, under the action of the connecting piece and the pull rod, the duckbill planting mechanism moves to the left side of the first section of the connecting piece.

[0020] The beneficial effects of the present invention are as follows: This invention employs a transmission component that rotates at a constant speed, evenly distributed around a central shaft. One end of a connector is rotatably connected to the transmission component, while the other end is connected to a duckbill planting mechanism. When the duckbill planting mechanism is in operation, its position is perpendicular to the ground surface. This facilitates zero-speed vertical pit drilling at the lowest point, completely eliminating the relative movement between the pit drilling head and the ground. This avoids scraping the pit wall, which can lead to roughness and collapse. The pit's uprightness rate can reach over 99%, with depth and diameter errors ≤ ±1cm. The pit wall is smooth and dense, and the collapse rate is reduced by over 80%, significantly improving the pit's forming quality. By adopting a multi-station rotary layout with three sets of transmission components, each duckbill planting mechanism can reach the pit-making position in sequence, achieving uninterrupted continuous operation without frequent start-stop of the machine. The overall machine operation efficiency can reach 25-40 acres / day, which is 8-15 times that of the single-station mechanical pit-making plus manual transplanting mode, and 2-3 times that of the traditional multi-station pure pit-making equipment. It can meet the transplanting progress requirements of large-scale planting bases of thousands of acres. By using a lever-driven purely mechanical linkage to control the opening and closing of the duckbill component, when the duckbill planting mechanism reaches the lowest point and completes the pit-making process, the lever is pulled to push open one side of the duckbill component to release the tobacco seedlings. No electrical or pneumatic devices are required. The structure is simple and reliable, with a low failure rate, convenient maintenance, and strong adaptability. It can operate reliably for a long time in harsh field conditions such as wide temperature range and high dust levels. Attached Figure Description

[0021] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0022] Figure 1 This is a schematic diagram of a rotary well-drilling multi-station zero-speed vertical drilling mechanism according to one or more embodiments of the present invention.

[0023] Figure 2This is a schematic diagram of the duckbill planting mechanism in a rotary well-cellar multi-station zero-speed vertical cellar drilling mechanism according to one or more embodiments of the present invention.

[0024] Figure 3 This is a schematic diagram of the T-shaped connecting rod in a rotary well-drilling multi-station zero-speed vertical well-drilling mechanism according to one or more embodiments of the present invention.

[0025] Figure 4 This is a schematic diagram of the triangular transmission rod in a rotary well-drilling multi-station zero-speed vertical well-drilling mechanism according to one or more embodiments of the present invention.

[0026] Figure 5 This is a schematic diagram of the fixed support in a rotary well-drilling multi-station zero-speed vertical well-drilling mechanism according to one or more embodiments of the present invention.

[0027] Figure 6 This is a schematic diagram of the rotating motor in a rotary well-drilling multi-station zero-speed vertical well-drilling mechanism according to one or more embodiments of the present invention.

[0028] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0029] The components include: 1. Duckbill planting mechanism, 2. T-shaped connecting rod, 3. Triangular transmission rod, 4. Pull rod, 5. Fixed bracket, 6. Rotating motor, 7. Receiving cylinder, 8. Fixed plate, 9. Connecting plate, 10. Opening and closing rod, 11. Duckbill, 12. Limiting spring. Detailed Implementation

[0030] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0031] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, unless otherwise expressly indicated by the invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof. As described in the background section, existing pit-making mechanisms suffer from problems such as easy scraping of pit walls and complex structural design. To address these technical issues, this invention proposes a rotary pit-making mechanism with multiple workstations and zero-speed vertical operation.

[0032] Example 1 In a typical embodiment of the present invention, reference is made to Figure 1 As shown, a rotary multi-station zero-speed vertical pit-making mechanism includes: Fixed bracket 5, with a central axis passing through fixed bracket 5 and rotatable relative to fixed bracket 5; At least three sets of transmission components, with one end of each transmission component fixed to the central shaft; Connectors, the number of which is the same as the number of transmission components, and one end of the connector is rotatably connected to the other end of the transmission component; The duckbill planting mechanism 1 is used to accommodate tobacco seedlings. The other end of the connector is connected to the duckbill planting mechanism 1. The duckbill planting mechanism 1 includes two duckbill parts 11, one of which is swingable. When the duckbill planting mechanism 1 is in operation, its position is perpendicular to the ground surface. Pull rod 4, the length of pull rod 4 is greater than the length of the connecting member. One end of pull rod 4 is movably connected to the side wall of the transmission component, and the other end of pull rod 4 is movably connected to the swingable duckbill component in the duckbill planting mechanism to avoid interfering with the movement of the duckbill planting mechanism 1. The pull rod is connected to the duckbill component on the side away from the transmission component so that the pull rod can push the duckbill component 11 to open relative to another duckbill component 11. When the duckbill planting mechanism 1 encounters resistance when in contact with the soil, the connecting member rotates relative to the transmission component, and the distance between the swingable duckbill component 11 and the transmission component decreases (compared to the distance between the adjacent duckbill component and the corresponding transmission rod). Pull rod 4 pushes the swingable duckbill component to open relative to another duckbill component at a set angle. In this embodiment, the fixed bracket 5 includes two locations, which are arranged opposite to each other. The central shaft is supported by the two fixed brackets 5. The fixed bracket 5 is made of bent steel plate, and its main function is to fix the entire mechanism and connect it to the rotating motor 6. (Refer to...) Figure 5 As shown, the fixed bracket 5 is L-shaped. The first section of the fixed bracket 5 can be fixed to the frame by bolts. The second section of the fixed bracket 5 is provided with a round hole, which is rotatably connected to the central shaft. The central shaft passes through the round hole of the fixed bracket 5 and can rotate relative to the fixed bracket 5. (Refer to...) Figure 6 As shown, the rotating motor 6 is fixed to the fixed bracket 5. The output shaft of the rotating motor 6 is connected to the central shaft, which drives the central shaft to rotate. The rotation of the central shaft drives the duckbill planting mechanism 1 to rotate counterclockwise relative to the central axis of the central shaft through the transmission components and connecting parts.

[0033] It should be noted that the transmission assembly is the triangular transmission rod 3 located at both ends of the central shaft, as shown in the reference. Figure 4As shown, the triangular transmission rod 3 includes three transmission rods evenly distributed along the central axis of the central shaft. The three transmission rods are evenly distributed at a 120-degree angle to form a triangular structure. When the duckbill planting mechanism 1 is in its lowest position, the bottom end of the transmission rod is set higher than the bottom end of the duckbill planting mechanism 1. At this time, the pull rod 4 is tilted to ensure the pushing effect of the pull rod 4 on the duckbill component 11. The triangular transmission rod 3 is cut from a single piece of steel plate. Weight reduction holes are opened on the triangular transmission rod 3 to reduce its mass. The three transmission rods protrude from the fixed bracket 5 to provide sufficient movement space for the duckbill planting mechanism 1. During the operation of the duckbill planting mechanism 1, when one of the duckbill planting mechanisms 1 moves to the bottom side of the fixed bracket 5 and comes into contact with the soil, the pull rod 4 pulls one side of the duckbill to open, realizing the falling of the tobacco seedling. Then, under the action of the limit spring 12, the duckbill component closes and continues to rotate counterclockwise with the rotating rod to complete a new round of pit planting operation.

[0034] In this embodiment, reference Figure 3 As shown, the connecting component is a T-shaped link 2, which includes a first section and a second section. The first and second sections are vertically connected. The first section of the T-shaped link 2 is rotatably connected to the triangular transmission rods 3 at both ends of the central shaft, specifically through a pin connection. Because the T-shaped link 2 is rotatably connected to the triangular transmission rods 3, the duckbill planting mechanism 1 always maintains a vertical posture under the action of gravity. No matter what angle the triangular transmission rods 3 are at during the rotation process, the duckbill planting mechanism 1 is perpendicular to the ground surface, ensuring the uprightness of the pit. Moreover, when the bottom duckbill planting mechanism 1 is in contact with the soil and encounters resistance, it ensures that the connecting component can move relative to the transmission assembly. The second section of the T-shaped link is connected to the duckbill planting mechanism. The three T-shaped links 2 are respectively connected to the ends of the triangular transmission rods 3 and supported by the two transmission rods at both ends of the central shaft.

[0035] It is easy to understand that by setting weight-reducing holes in the transmission components and connecting parts, the overall weight of the machine is reduced while ensuring structural strength, the inertial force when the central shaft rotates is reduced, the drive power requirement is reduced by about 15%-20%, and the overall weight of the implement is reduced, making it easier to move and operate in the field and reducing the power requirements of the supporting power machinery.

[0036] It should be noted that, regarding the pull rod 4, one end of the pull rod 4 is connected to the triangular transmission rod 3 via a pin, allowing the pull rod to rotate relative to the transmission assembly. However, the connection position between the pull rod 4 and the triangular transmission rod 3 is fixed and will not change. The other end of the pull rod 4 is connected to the opening and closing rod via a pin. The opening and closing rod is hollow, and the pin is inserted into one end of the opening and closing rod and the pull rod to ensure that the duckbill planting mechanism can rotate relative to the triangular transmission rod 3. The connection point between the pull rod 4 and the triangular transmission rod 3 is located near the T-shaped connecting rod 2. The distance between the connection point of the pull rod 4 and the first end of the transmission assembly and the first end of the transmission assembly is 1 / 5 to 1 / 4 of the length of the transmission assembly. The first end of the transmission assembly is the connection end between the transmission assembly and the connecting piece. This arrangement of the pull rod 4 ensures the connection between the triangular transmission rod 3 and the duckbill planting mechanism 1, preventing the disorderly operation of the duckbill planting mechanism under gravity and controlling the opening and closing of the duckbill planting mechanism 1.

[0037] refer to Figure 2 As shown, the duckbill planting mechanism 1 includes a receiving cylinder 7, a fixing plate 8, a connecting plate 9, an opening and closing rod 10, a duckbill component 11, and an elastic element. The top side of the receiving cylinder 7 is trumpet-shaped, which facilitates the tobacco seedlings to fall in from above. The distance between the top of the receiving cylinder 7 and the bottom of the duckbill 11 is 1 / 2 to 5 / 6 of the height of the tobacco seedling, ensuring that the tobacco seedlings can maintain an upright posture in the receiving cylinder 7, and at the same time, the tobacco seedlings will not tip over due to the receiving cylinder 7 being too short. Specifically, the two halves of the duckbill component 11 are joined together to form a conical structure, which is used to penetrate deep into the soil for pit construction.

[0038] A fixing ring 8 is circumferentially fixed on the bottom side of the receiving cylinder 7. One side of the fixing ring 8 is connected to the second section of the T-shaped connecting rod 2, specifically by bolt connection, to fix the duckbill planting mechanism 1 to the T-shaped connecting rod 2. Two mounting brackets 9 are movably set on the bottom side of the fixing ring 8 away from the receiving cylinder 7. The two mounting brackets 9 correspond to the duckbill components 11 on both sides respectively. The opening and closing rod 10 passes through the mounting bracket 9 and connects to the duckbill component 11 to realize the control of the opening and closing state of the duckbill component 11. An elastic element 12 is connected between the mounting brackets 9 on both sides. The elastic element 12 provides elastic force to keep the duckbill 11 closed in its natural state. The elastic element is specifically a limit spring 12. The duckbill component 11 includes two halves of the duckbill component, one half of which can swing, and the other half is fixed to the fixing ring by the corresponding opening and closing rod 10.

[0039] The duckbill planting mechanism is connected to the connecting rod 2 via a fixed plate 8. The rotation of the rotating motor 6 drives the duckbill planting mechanism 1 to rotate counterclockwise. The rotational motion realizes the pit-breaking and transplanting operations. When it reaches the lowest point, the duckbill planting mechanism 1 opens the duckbill under the action of the pull rod 4 connected to the opening and closing rod 10 to allow the tobacco seedlings to fall. Then, under the action of the limit spring 12, the duckbill closes and continues to rotate counterclockwise with the connecting rod 2 to complete a new round of pit-breaking and planting operations.

[0040] The cellar-making mechanism provided in this embodiment is driven by a rotating motor to rotate a triangular transmission rod 3. The front end of the triangular transmission rod 3 is equipped with a duckbill planting mechanism 1. When the mechanism moves to the lowest point, the duckbill planting mechanism 1 will dig regular cellars in the field, and the pull rod fixed to one end of the duckbill planting mechanism 1 will push open one side of the duckbill to make it open, and transplant the tobacco seedlings into the cellar. Then, driven by the triangular transmission rod 3, the duckbill moves upward, and under the action of the limit spring, the duckbill planting mechanism 1 closes to start a new round of transplanting operations.

[0041] Example 2 This embodiment provides an agricultural device, including a frame and a rotary multi-station zero-speed upright pit-making mechanism as described in Embodiment 1. A fixed bracket is installed on the frame, and the output shaft of the rotating motor passes through the fixed bracket and connects to the central shaft. Furthermore, during operation, the duckbill planting mechanism is positioned perpendicular to the ground surface, ensuring that the pit-making head is absolutely stationary (zero speed) relative to the ground when it reaches its lowest point. This completely solves the industry problems of traditional multi-station equipment where the pit-making head scrapes against the pit wall and the pit tilts. The pit uprightness rate reaches over 99%, with depth and diameter errors ≤ ±1cm. The pit walls are smooth and dense, reducing the collapse rate by over 80%. Adopting a three-station rotary layout, continuous cyclical operation can be achieved by following the machine at a uniform speed, eliminating the need for frequent machine starts and stops. The overall machine operating efficiency can reach 25-40 mu / day, which is 8-15 times that of a single-station mechanical pit-making + manual transplanting mode and 2-3 times that of traditional multi-station pure pit-making equipment, meeting the transplanting progress requirements of large-scale planting bases of thousands of mu.

[0042] Taking ordinary pit-making and transplanting operations as an example, the mechanism is fixed at the frame, which is driven forward by a small engine. During operation, the entire equipment is placed in the field, the engine is started and adjusted to a stable operating speed, and it moves forward slowly. When the duckbill planting mechanism moves to the lowest point with the triangular transmission rod and enters a zero-speed state, it forms a regular-shaped pit through the squeezing action.

[0043] When the duckbill component reaches the set pit-digging depth, the pull rod connecting the triangular transmission rod and the opening / closing rod is pulled, pushing open one side of the duckbill component through pure mechanical linkage. The tobacco seedlings in the receiving cylinder fall vertically into the center of the pit, completing precise transplanting. After completing the single-plant pit-digging and transplanting, the duckbill planting mechanism continues to rotate with the triangular transmission rod, and the duckbill planting mechanism of the next station simultaneously reaches the pit-digging position, repeating the entire process of "pit-digging-transplanting-resetting" to achieve uninterrupted continuous operation. During the operation, the operator only needs to control the direction of the machine's movement and replenish the tobacco seedlings.

[0044] Example 3 This embodiment provides a working method for a rotary multi-station zero-speed vertical pit-making mechanism, including the following: The central shaft drives the transmission assembly to rotate, which in turn drives the duckbill planting mechanism 1 to rotate through the connecting parts; When the rotary well-cellar multi-station zero-speed vertical well-cellar mechanism moves to the lower side of the fixed support 5, the duckbill planting mechanism 1 will dig a well-cellar in the field, and the pull rod 4 fixed to the duckbill planting mechanism 1 will push open one side of the duckbill component 11 to make it open, and transplant the tobacco seedlings into the well-cellar. Then, driven by the transmission component, the duckbill planting mechanism 1 moves upward and closes to carry out a new round of transplanting operations. During the upward movement of the duckbill planting mechanism 1, under the pulling action of the pull rod 4, the duckbill planting mechanism 1 located on the left side of the lowest transmission component moves to the right side of the transmission component. As the duckbill planting mechanism 1 continues to rotate upward, under the action of the connecting piece and the pull rod 4, the duckbill planting mechanism moves to the left side of the first section of the connecting piece (that is, as the central shaft rotates, the duckbill planting mechanism 1 moves to the front side of the transmission rod connected to it).

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A rotary multi-station zero-speed vertical pit-making mechanism, characterized in that, include: A fixed bracket, with a central axis passing through the fixed bracket and rotatable relative to the fixed bracket; At least three sets of transmission components, with one end of each transmission component fixed to the central shaft; Connectors, the number of which is the same as the number of transmission components, and one end of the connector is rotatably connected to the other end of the transmission component; The duckbill planting mechanism is used to hold tobacco seedlings. The other end of the connector is connected to the duckbill planting mechanism. The duckbill planting mechanism includes two duckbill parts, one of which can swing. When the duckbill planting mechanism is in operation, its position is perpendicular to the ground surface. The pull rod has one end movably connected to the side wall of the transmission component, and the other end movably connected to the swingable duckbill component in the duckbill planting mechanism. The pull rod is connected to the duckbill component on the side away from the transmission component. When the duckbill planting mechanism encounters resistance when it comes into contact with the soil, the connecting part rotates relative to the transmission component, the distance between the swingable duckbill component and the transmission component decreases, and the pull rod pushes the swingable duckbill component to open at a set angle relative to the other duckbill component.

2. The rotary multi-station zero-speed vertical pit-making mechanism according to claim 1, characterized in that, The connection point between the pull rod and the transmission assembly is located close to the connector. The distance between the connection point between the pull rod and the transmission assembly and the first end of the transmission assembly is 1 / 5 to 1 / 4 of the length of the transmission assembly. The first end of the transmission assembly is the connection end between the transmission assembly and the connector.

3. The rotary multi-station zero-speed vertical pit-making mechanism according to claim 1, characterized in that, The end of the pull rod away from the transmission assembly is connected to the opening and closing rod of the duckbill planting mechanism, and the opening and closing rod is connected to the swingable duckbill component.

4. The rotary multi-station zero-speed vertical pit-making mechanism according to claim 1, characterized in that, The transmission component is a triangular transmission rod placed at both ends of the central shaft. The triangular transmission rod includes three evenly distributed transmission rods. The transmission rods protrude from the fixed bracket. When the duckbill planting mechanism is in the lowest position, the bottom end of the transmission rod is higher than the bottom end of the duckbill planting mechanism.

5. A rotary multi-station zero-speed vertical pit-making mechanism according to claim 4, characterized in that, The connecting component is a T-shaped link. The first section of the T-shaped link connects to the triangular transmission rods at both ends of the central shaft, and the second section of the T-shaped link connects to the duckbill planting mechanism.

6. The rotary multi-station zero-speed vertical pit-making mechanism according to claim 3, characterized in that, The duckbill planting mechanism includes a receiving cylinder. The distance between the top of the receiving cylinder and the bottom of the duckbill component is 1 / 2 to 5 / 6 of the height of the tobacco seedling. A fixing ring is fixed around the receiving cylinder. One side of the fixing ring is connected to the connecting piece. An installation frame is movably installed on the bottom side of the fixing ring away from the receiving cylinder. The locking rod passes through the installation frame and connects to the duckbill component. The installation frame corresponds to the duckbill component one by one. An elastic element connects the installation frames on both sides.

7. A rotary multi-station zero-speed vertical pit-making mechanism according to claim 6, characterized in that, The receiving cylinder extends beyond the fixing ring, and the top side of the receiving cylinder is funnel-shaped.

8. A rotary multi-station zero-speed vertical pit-making mechanism according to claim 1, characterized in that, Both the transmission component and the connector are provided with weight reduction holes.

9. An agricultural device, characterized in that, The invention includes a frame and a rotary well-drilling multi-station zero-speed vertical well-drilling mechanism according to any one of claims 1-8, wherein the fixed bracket is installed on the frame and the output shaft of the rotating motor passes through the fixed bracket and is connected to the central shaft.

10. The working method of the rotary multi-station zero-speed vertical pit-making mechanism according to any one of claims 1-8, characterized in that, Includes the following: The central shaft drives the transmission assembly to rotate, which in turn drives the duckbill planting mechanism to rotate through the connecting parts; When the rotary well-cellar multi-station zero-speed vertical well-cellar mechanism moves to the bottom of the fixed support, the duckbill planting mechanism will dig a well-cellar in the field, and the pull rod fixed to the duckbill planting mechanism will push open one side of the duckbill component to make it open, and transplant the tobacco seedlings into the well-cellar. Then, driven by the transmission component, the duckbill planting mechanism moves upward and closes to start a new round of transplanting operations. During the upward movement of the duckbill planting mechanism, under the pulling action of the pull rod, the duckbill planting mechanism located on the left side of the lowest transmission component moves to the right side of the transmission component. As the duckbill planting mechanism continues to rotate upward, under the action of the connecting piece and the pull rod, the duckbill planting mechanism moves to the left side of the first section of the connecting piece.

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