Tobacco transplanter and rotary well digging planting device and method thereof

Abstract

The invention relates to a tobacco transplanter and a rotary well-digging planting device and method thereof, the tobacco transplanter comprises the rotary well-digging planting device, the rotary well-digging planting device comprises a rack; the driving mechanism comprises a driving motor, a turning driving box, a planetary gear box and a non-circular gear box, the driving motor and the non-circular gear box are installed on the rack, and the non-circular gear box is connected with the driving motor and the planetary gear box and drives the planetary gear box to integrally rotate at a variable speed; the turning driving box is connected with the planetary gear box; the seedling separating mechanism is mounted at the top end of the rack and is connected with the non-circular gear box; the well cellar device is connected with the direction-changing driving box, and the well cellar device and the direction-changing driving box perform variable-speed rotary motion along with the planetary gear box and rotate at the same time; the seedling dropping mechanism is connected with the turning driving box; when the turning driving box moves to the top end, the seedling dropping mechanism receives pot seedlings; when the turning driving box moves to the bottom end, the well cellar device completes cellar digging, and the seedling throwing mechanism throws seedlings right above the well cellar hole. The invention further provides a rotary well pit digging planting method.

Description

Technical Field

[0001] The invention relates to a tobacco transplanter, in particular to a tobacco transplanter and a rotary well-digging cellar planting device and method thereof. Background Art

[0002] The pit-type planting method provides a small environment with suitable temperature and moisture for seedlings, which can effectively prevent natural disasters such as late spring cold, and is widely used in tobacco transplanting. However, due to the difficulty of mechanized operation of pit-type transplanting, it is still mainly done by hand-held tools, which has low operation efficiency and high labor intensity. The existing pit-type digging device has low efficiency, poor synchronization of seedling planting, high seedling leakage rate and poor operation quality. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a tobacco transplanter and a rotary well-digging cellar planting device and method thereof in view of the above-mentioned defects of the prior art.

[0004] In order to achieve the above object, the present invention provides a rotary well-pit planting device, which is installed on a tobacco transplanter and includes:

[0005] frame;

[0006] The driving mechanism comprises a driving motor, a direction-changing driving box, a planetary gearbox and a non-circular gearbox, wherein the driving motor and the non-circular gearbox are respectively mounted on the frame, the non-circular gearbox is respectively connected to the driving motor and the planetary gearbox, and the non-circular gearbox drives the planetary gearbox to rotate at a variable speed as a whole; the direction-changing driving box is connected to the planetary gearbox and keeps a vertical downward position to rotate together with the planetary gearbox;

[0007] A seedling separation mechanism is mounted on the top of the frame and connected to the non-circular gear box;

[0008] A pit device, connected to the direction-changing drive box, for realizing rotary pit-building, wherein the pit device and the direction-changing drive box rotate with the planetary gear box at variable speeds and rotate themselves at the same time; and

[0009] The seedling throwing mechanism is connected to the direction-changing drive box; when the direction-changing drive box moves to the top end along with the planetary gear box, the seedling throwing mechanism receives the potted seedlings thrown by the seedling separation mechanism; when the direction-changing drive box moves to the bottom end along with the planetary gear box, the well cellar device completes the well digging, and the seedling throwing mechanism throws the seedlings right above the well cellar hole that has been built.

[0010] The above-mentioned rotary well-digging and cellar planting device, wherein the driving mechanism also includes a chain driving component, which is installed on the frame and meshes with the sprocket on the lateral power input shaft of the reversing drive box, and is used to drive the downward power output shaft of the reversing drive box, and the well-digging device is connected to the downward power output shaft of the reversing drive box, and the downward power output shaft of the reversing drive box drives the well-digging device to rotate around its own axis to complete the cellar digging operation.

[0011] In the above-mentioned rotary well-digging and cellar planting device, the chain drive component is located on the front side of the change-direction drive box. When the change-direction drive box rotates with the planetary gear box, the chain drive component meshes with the sprocket on the lateral power input shaft of the change-direction drive box and drives the lateral power input shaft to rotate, and drives the downward power output shaft of the change-direction drive box to rotate after changing speed through the right-angle reversing gear.

[0012] The rotary well-digging and cellar planting device, wherein the seedling throwing mechanism comprises:

[0013] A swing arm, one end of which is mounted on the direction-changing drive box and swings around the direction-changing drive box; a swing arm paddle and a swing arm spring are mounted on the swing arm near the direction-changing drive box, one end of the swing arm spring is connected to the swing arm, and the other end of the swing arm spring is connected to the direction-changing drive box;

[0014] A seedling receiving tube is installed at the other end of the swing arm, and an opening is provided at the bottom end of the seedling receiving tube; and

[0015] The seedling casting component includes a seedling casting lever, a seedling casting pull rod, a seedling casting paddle and a seedling casting spring. The seedling casting lever is installed on the planetary gear box corresponding to the swing arm paddle. One end of the seedling casting pull rod is connected to the swing arm, and the other end of the seedling casting pull rod is connected to the seedling receiving tube. The seedling casting paddle is installed on the swing arm corresponding to the seedling casting pull rod; the seedling casting spring is installed on the seedling receiving tube and is used to keep the opening and closing mouth of the seedling receiving tube in a closed position.

[0016] The above-mentioned rotary well-pit planting device, wherein the seedling receiving tube has the same movement direction as the seedling dividing tube when receiving seedlings, so as to ensure the synchronization of seedling receiving; the movement trajectory of the seedling receiving tube when throwing seedlings is consistent with the well-pit device, so as to ensure the synchronization of throwing seedlings.

[0017] The above-mentioned rotary well-digging cellar planting device, wherein the seedling separation mechanism includes a seedling separation cylinder and a seedling separation cylinder drive shaft, the seedling separation cylinder is installed on the frame through a seedling separation sprocket, and the seedling separation cylinder drive shaft is installed on the frame through a bearing, and is used to drive multiple seedling separation cylinders to achieve rotary motion, one end of the seedling separation cylinder drive shaft is connected to the non-circular gear box through a chain drive, and the other end of the seedling separation cylinder drive shaft is connected to the seedling separation sprocket through a commutator.

[0018] In order to better achieve the above-mentioned purpose, the present invention also provides a tobacco transplanter, which includes a walking chassis and a lifting mechanism installed on the walking chassis, a scissors-type lifting support link and the above-mentioned rotary well-digging pit planting device, the lifting mechanism is used to lift the rotary well-digging pit planting device and cooperate with the scissors-type lifting support link to adjust the height of the rotary well-digging pit planting device.

[0019] In the above-mentioned tobacco transplanter, two pairs of mutually meshing elliptical gears are arranged in the non-circular gear box, which are used to realize the variable speed circular motion of the planetary gear box around the power output shaft of the non-circular gear box. The variable speed circular motion of the planetary gear box cooperates with the uniform linear motion of the walking chassis to realize the straight up and down motion trajectory of the pit well device to complete the in-situ pit digging operation.

[0020] In order to better achieve the above-mentioned purpose, the present invention also provides a rotary well-digging and cellar planting method, wherein the rotary well-digging and cellar planting device is used to realize on-site cellar digging and planting in the process of continuous operation with a walking chassis, and the well-digging and cellar planting operations are completed at one time, including the following steps:

[0021] Seedling placement step: the seedling placement tube places the pot seedlings in sequence;

[0022] The cellar digging step adopts a non-circular gear speed-changing planetary gearbox to drive the cellar digger to move, and the cellar digger rotates around its own central axis while rotating around the non-circular gearbox to complete the straight-up and straight-down in-situ cellar digging operation;

[0023] Planting step: when the direction-changing driving box moves to the bottom, the seedling-casting lever switches on the swing arm paddle and the seedling-casting paddle, driving the seedling-receiving cylinder to move to just above the well-drilled pit and the bottom is opened to complete the seedling-casting; when the direction-changing driving box moves to the top, the swing arm swings to one side of the seedling-separating cylinder under the action of the swing arm spring, the seedling-receiving cylinder is located just below the seedling-separating cylinder, and the bottom of the seedling-receiving cylinder is closed to receive the potted seedlings cast in sequence by the seedling-separating cylinder; and

[0024] Repeat the above steps until all the well digging and planting operations are completed.

[0025] The above rotary well-digging cellar planting method, wherein:

[0026] In the seedling separation and placement step, the driving motor drives the non-circular gear box, and the power output shaft at one end of the non-circular gear box drives the multiple seedling separation cylinders to rotate at a uniform speed through the seedling cylinder driving shaft;

[0027] During the cellaring step, the power output shaft at the other end of the non-circular gear box drives the planetary gear box as a whole to perform speed-changing rotational motion, the direction-changing drive box rotates with the planetary gear box and maintains a vertical downward posture, the sprocket on the lateral power input shaft of the direction-changing drive box engages with the chain drive component, driving the downward power output shaft of the direction-changing drive box, driving the well cellar device to rotate around its own axis while performing speed-changing rotational motion with the planetary gear box.

[0028] The technical effects of the present invention are:

[0029] The present invention adopts a variable speed drive method to realize the rotary cellar digging and planting device to achieve nearly straight up and down on-site cellar digging and planting operations during the continuous operation of the walking chassis, and completes the cellar digging and planting operations at one time, with good seedling planting synchronization, good operation effect and high work efficiency.

[0030] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the structure of a tobacco transplanter according to an embodiment of the present invention;

[0032] Figure 2 This is a schematic structural diagram of a rotary well-digging and cellar planting device according to an embodiment of the present invention;

[0033] Figure 3 for Figure 2 Side view of

[0034] Figure 4 This is a schematic diagram of the connection relationship between the driving mechanism and the seedling throwing mechanism according to an embodiment of the present invention;

[0035] Figure 5 The figure is a schematic diagram of the connection relationship of the seedling separation mechanism according to an embodiment of the present invention.

[0036] Among them, the reference numerals

[0037] 1 Walking chassis

[0038] 2 Lifting mechanism

[0039] 3. Well-digging and cellar planting device

[0040] 31 racks

[0041] 32 Driving mechanism

[0042] 321 drive motor

[0043] 322 chain drive components

[0044] 323 change direction drive box

[0045] 324 planetary gearbox

[0046] 325 non-circular gearbox

[0047] 33 Seedling agency

[0048] 331 seedling tube

[0049] 332 Seedling Pole

[0050] 333 seedling rod

[0051] 334 seedling picking blade

[0052] 335 seedling spring

[0053] 336 swing arm

[0054] 337 Swing arm paddle

[0055] 338 swing arm spring

[0056] 34 seedling division mechanism

[0057] 341 seedling tube

[0058] 342 seedling tube drive shaft

[0059] 343 seedling sprocket

[0060] 344 chain drive parts

[0061] 345 commutator

[0062] 35 Well Cellar

[0063] 4 Scissor lift support rod DETAILED DESCRIPTION

[0064] The structural principle and working principle of the present invention are described in detail below in conjunction with the accompanying drawings:

[0065] See also Figure 1 , Figure 1The tobacco transplanter of the present invention is a schematic diagram of the structure of an embodiment of the present invention. The tobacco transplanter of the present invention comprises a traveling chassis 1 and a lifting mechanism 2, a scissor-type lifting support link 4 and a rotary well-digging pit planting device 3 installed on the traveling chassis 1. The traveling chassis 1 is used to carry the rotary well-digging pit planting device 3, the scissor-type lifting support link 4 and the lifting mechanism 2 for operation and walking; the scissor-type lifting support link 4 is used to carry the rotary well-digging pit device to achieve different height position adjustment of different well-digging pit planting devices 3; the lifting mechanism 2 is used to lift the rotary well-digging pit planting device 3 and cooperate with the scissor-type lifting support link 4 to adjust the height of the rotary well-digging pit planting device 3. The lower ends of the scissor-type lifting support link 4 and the lifting mechanism 2 are installed on the traveling chassis 1 frame, and the upper ends are installed on the rotary well-digging pit planting device 3 frame 31. The front side of the scissor-type lifting support link 4 is connected to the frame of the walking chassis 1 and the frame 31 through a linear slide rail, and can slide forward and backward. The scissors are the rear side of the lifting support link, which is hinged to the frame of the walking chassis 1 and the frame 31, and can rotate up and down. The lifting mechanism 2 drives the installation side of the rotary well-digging and planting device 3 to move up and down. Under the support of the scissor-type lifting support link 4, the rotary well-digging and planting device 3 can maintain a horizontal posture and move up and down as a whole to achieve height adjustment. Because the composition, structure, connection relationship and function of other parts of the tobacco transplanter are all relatively mature existing technologies, they will not be repeated here. The following is a detailed description of the rotary well-digging and planting device 3 and method of the present invention.

[0066] See also Figure 2-Figure 4 , Figure 2 This is a structural schematic diagram of a rotary well-digging and cellar planting device 3 according to an embodiment of the present invention. Figure 3 for Figure 2 Side view of Figure 4The figure is a schematic diagram of the connection relationship between the driving mechanism 32 and the seedling planting mechanism 33 of one embodiment of the present invention. The rotary well-digging and cellar planting device 3 of the present invention is installed on a tobacco transplanter, and is used to make wells and cellars for transplanting tobacco seedlings and complete the seedling planting, including: a frame 31; a driving mechanism 32, including a driving motor 321, a direction-changing driving box 323, a planetary gear box 324 and a non-circular gear box 325, wherein the driving motor 321 and the non-circular gear box 325 are respectively installed on the frame 31, and the non-circular gear box 325 is respectively connected to the driving motor 321 and the planetary gear box 324, and the power output shaft of the driving motor 321 is connected to the non-circular gear box 325. The wheel box 325 is connected to the power input shaft, and the planetary gear box 324 is fixedly installed on the power output shaft of the non-circular gear box 325, and the power output shaft drives the planetary gear box 324, driving the planetary gear box 324 to rotate as a whole; the direction-changing drive box 323 is connected to the planetary gear box 324, fixedly installed on the power output shaft of the planetary gear box 324, and keeps a vertical downward position to rotate with the planetary gear box 324 as a whole; wherein, the non-circular gear box 325 is provided with two pairs of mutually meshing elliptical gears for The planetary gearbox 324 is made to perform variable speed circular motion around the power output shaft of the non-circular gearbox 325. The variable speed circular motion of the planetary gearbox 324 cooperates with the uniform linear motion of the walking chassis 1 to realize the straight up and down motion trajectory of the well cellar device 35 to complete the in-situ cellaring operation; the seedling separation mechanism 34 is installed at the top of the frame 31 and connected to the non-circular gearbox 325; the well cellar device 35 is connected to the direction-changing drive box 323 and is connected to the downward output shaft of the direction-changing drive box 323 through a thread. The box 323 rotates itself while rotating with the planetary gear box 324 at a variable speed, so as to realize the rotary well pit making; and the seedling throwing mechanism 33 is connected to the direction-changing driving box 323; when the direction-changing driving box 323 moves to the top with the planetary gear box 324, the seedling throwing mechanism 33 receives the pot seedlings thrown by the seedling separation mechanism 34; when the direction-changing driving box 323 moves to the bottom with the planetary gear box 324, the well pit device 35 completes the pit making, and the seedling throwing mechanism 33 throws seedlings just above the well pit made. This embodiment is provided with two groups of seedling throwing mechanisms 33, which are respectively connected to the two ends of the planetary gear box 324, and the seedling receiving tube 331 moves forward at a horizontal speed at the top end, and the movement direction is horizontally forward when throwing the seedlings, ignoring the air resistance, and ensuring the synchronization of the seedlings after throwing the seedlings.

[0067] In this embodiment, the driving mechanism 32 further comprises a chain drive component 322, which is mounted on the frame 31 and meshed with a sprocket on the lateral power input shaft of the direction-changing drive box 323, and is used to drive the downward power output shaft of the direction-changing drive box 323. The well pit device 35 is connected to the downward power output shaft of the direction-changing drive box 323, and the downward power output shaft of the direction-changing drive box 323 drives the well pit device 35 to rotate around its own axis to complete the cellaring operation. The chain drive component 322 is located on the front frame 31 of the direction-changing drive box 323. When the direction-changing drive box 323 rotates with the planetary gear box 324, the chain drive component 322 meshes with a sprocket on the lateral power input shaft of the direction-changing drive box 323, and drives the lateral power input shaft to rotate, and drives the downward power output shaft of the direction-changing drive box 323 to rotate after the right-angle reversing gear is changed.

[0068] See also Figure 4 The seedling throwing mechanism 33 of the present embodiment includes: a swing arm 336, one end of which is mounted on the direction-changing drive box 323 and swings around the direction-changing drive box 323; a swing arm paddle 337 and a swing arm spring 338 are mounted on the swing arm 336 near the direction-changing drive box 323, the swing arm paddle 337 is fixed on the swing arm 336, one end of the swing arm spring 338 is connected to the swing arm 336, and the other end of the swing arm spring 338 is connected to the direction-changing drive box 323; a seedling receiving tube 331, which is fixedly mounted on the other end of the swing arm 336, and the bottom end of the seedling receiving tube 331 is provided with an opening and closing mouth ; and seedling throwing parts, including a seedling throwing lever 332, a seedling throwing rod 333, a seedling throwing paddle 334 and a seedling throwing spring 335, wherein the seedling throwing lever 332 is fixedly mounted on the planetary gear box 324 corresponding to the swing arm paddle 337, one end of the seedling throwing rod 333 is connected to the swing arm 336, and the other end of the seedling throwing rod 333 is connected to the seedling receiving tube 331, and the seedling throwing paddle 334 is mounted on the swing arm 336 corresponding to the seedling throwing rod 333; the seedling throwing spring 335 is mounted on the seedling receiving tube 331, and is used to keep the opening and closing mouth of the seedling receiving tube 331 in a closed position. When the seedling receiving tube 331 receives seedlings, the movement direction is consistent with that of the seedling separation tube 341 to ensure the synchronization of seedling receiving; the movement trajectory of the seedling receiving tube 331 when throwing seedlings is consistent with that of the well cellar device 35 to ensure the synchronization of seedling throwing.

[0069] The seedling casting lever 332 of this embodiment is fixedly mounted at both ends of the planetary gear box 324 by bolts, the swing arm 336 is sleeved on the lower end of the direction-changing drive box 323, and is fixed by an elastic washer on the shaft, and one end of the swing arm spring 338 is connected to the swing arm 336, and the other end is connected to the outer shell of the direction-changing drive box 323. During the non-seedling casting period, the swing arm 336 is pulled by the swing arm spring 338 to deviate to the side of the seedling separation barrel, which is convenient for seedlings; during the seedling casting period, the seedling casting lever 332 rotates to the lower side with the planetary gear box 324, and the swing arm paddle 337 is paddled to drive the swing arm 336 to deviate to one side of the planetary gear box 324, which is convenient for seedling casting; the seedling casting paddle 334 is hingedly mounted on the swing arm 336 and can swing. During the seedling planting period, the seedling planting lever 332 rotates to the lower side with the planetary gear box 324, and the seedling planting lever 332 simultaneously moves the seedling planting paddle 334, pulls the seedling planting pull rod 333, and the seedling receiving tube 331 opens to complete the seedling planting; during the non-seedling planting period, the seedling planting spring 335 pulls the lower seedling receiving tube 331 to close for seedling removal.

[0070] See also Figure 5 , Figure 5 The figure is a schematic diagram of the connection relationship of the seedling separation mechanism 34 of one embodiment of the present invention. The seedling separation mechanism 34 of this embodiment includes a seedling separation cylinder 341 and a seedling separation cylinder drive shaft 342, the seedling separation cylinder 341 is installed on the frame 31 through a seedling separation sprocket 343, the seedling separation cylinder drive shaft 342 is installed on the frame 31 through a bearing, and is used to drive a plurality of seedling separation cylinders 341 to achieve rotary motion, one end of the seedling separation cylinder drive shaft 342 is connected to the power output shaft of the non-circular gear box 325 through a chain transmission component 344, and the other end of the seedling separation cylinder drive shaft 342 is connected to the seedling separation sprocket 343 through a commutator 345.

[0071] During operation, the driving motor 321 drives the non-circular gear box 325 to work, and the power output shaft at one end of the non-circular gear box 325 drives multiple seedling tubes 341 to rotate at a uniform speed through the seedling tube driving shaft 342; the power output shaft at the other end of the non-circular gear box 325 drives the planetary gear box 324 to perform variable speed rotation as a whole, and the direction-changing drive box 323 rotates with the planetary gear box 324 and maintains a vertical downward posture, and the sprocket on the lateral power input shaft of the direction-changing drive box 323 meshes with the chain drive component 322, driving the power output shaft of the direction-changing drive box 323 downward, with The pit moving device 35 rotates itself while the planetary gear box 324 rotates at a variable speed; when the direction-changing driving box 323 moves to the bottom, the seedling-casting lever 332 switches the swing arm paddle 337 and the seedling-casting paddle 334, drives the seedling receiving cylinder 331 to move to the top of the well pit hole and completes the seedling casting; when the direction-changing driving box 323 moves to the top, the swing arm 336 swings to the side of the seedling-separating cylinder 341 under the action of the swing arm spring 338, and the seedling-separating cylinder 331 is located directly below the seedling-separating cylinder 341. At this time, the seedling-separating cylinder 331 closes and receives the pot seedlings successively cast by the seedling-separating cylinder 341. The rotary pit-digging planting device 3 moves with the walking chassis 1, and the height of the rotary pit-digging planting device 3 can be adjusted by the lifting mechanism 2 and the scissor-type lifting support link 4 to adapt to the planting operation under different height ridge surface conditions.

[0072] In the process of the working parts moving with the walking chassis 1, the present invention can produce an approximately vertical well pit, which is basically consistent with the effect of the well pit digging operation without moving straight up and straight down in situ. The planetary gearbox 324 can ensure that the posture of the well pit device 35 installed vertically downward remains unchanged. The two pairs of mutually meshing elliptical gears in the non-circular gearbox 325 can realize the planetary gearbox 324 to perform variable speed circular motion around the power output shaft of the non-circular gearbox 325, that is, the well pit device 35 is located horizontally, i.e., at 3 o'clock and 9 o'clock, the linear speed is fast, and the linear speed is slow when it is located vertically, i.e., at 6 o'clock and 12 o'clock. The variable speed circular motion is synthesized with the uniform linear motion of the walking mechanism, and the motion trajectory of the well pit device 35 has an approximately straight up and down part, and this section of the motion trajectory is used to realize the approximately straight up and down in situ well digging operation. Similarly, when throwing seedlings, the seedling throwing tube is consistent with the motion trajectory of the well pit device 35, that is, the approximately vertical downward throwing action of the seedling is realized to complete the planting operation.

[0073] The rotary well-digging and cellar planting method of the present invention adopts the rotary well-digging and cellar planting device 3 to realize on-site cellar digging and planting in the continuous operation process of the traveling chassis 1, and completes the well-digging and cellar planting operations at one time, including the following steps:

[0074] Seedling placement step, the seedling placement tube 341 places the pot seedlings in sequence;

[0075] In the cellar digging step, a non-circular gear speed-changing driving planetary gear box 324 is used to drive the cellar digger 35 to move. The cellar digger 35 rotates around the non-circular gear box 325 and around its own central axis at the same time, so as to complete the straight-up and straight-down in-situ cellar digging operation;

[0076] Planting step, when the direction-changing driving box 323 moves to the bottom, the seedling throwing lever 332 turns on the swing arm paddle 337 and the seedling throwing paddle 334, driving the seedling receiving tube 331 to move to just above the well pit and open the bottom to complete the seedling throwing; when the direction-changing driving box 323 moves to the top, the swing arm 336 swings to the side of the seedling separation tube 341 under the action of the swing arm spring 338, the seedling receiving tube 331 is located just below the seedling separation tube 341, and the bottom of the seedling receiving tube 331 is closed to receive the potted seedlings dropped in sequence by the seedling separation tube 341; and

[0077] Repeat the above steps until all the well digging and planting operations are completed.

[0078] Among them, in the seedling separation and placement step, the driving motor 321 drives the non-circular gear box 325, and the power output shaft at one end of the non-circular gear box 325 drives multiple seedling separation tubes 341 to rotate at a uniform speed through the seedling tube drive shaft 342; in the cellaring step, the power output shaft at the other end of the non-circular gear box 325 drives the planetary gear box 324 as a whole to perform variable speed rotational motion, and the reversing drive box 323 rotates with the planetary gear box 324 and maintains a vertical downward posture, and the sprocket on the lateral power input shaft of the reversing drive box 323 is engaged with the chain drive component 322, driving the downward power output shaft of the reversing drive box 323, and driving the well cellar device 35 to rotate around its own axis while rotating with the planetary gear box 324 at a variable speed.

[0079] The present embodiment can use non-circular gears or other variable speed drive methods to drive the rotary cellar planting device. When the seedling throwing mechanism 33 rotates around the non-circular gear box 325, the cellar device 35 rotates around its own central axis; the direction-changing drive box 323 body is fixed to the planetary gear shaft of the planetary gear box 324 through a key connection, supported by the planetary gear shaft and rotates with the planetary gear shaft; the cellar device 35 is fixed to the output shaft of the direction-changing drive box 323 through a threaded connection or a pin connection, supported and driven by the direction-changing drive box 323; when the direction-changing drive box 323 rotates with the rotary box body, the chain drive component 322 and the lateral motion of the direction-changing drive box 323 are connected. The sprocket of the force input shaft meshes and drives it to rotate, and after the right-angle reversing gear is changed, the power output shaft is driven to rotate, driving the well cellar device 35 to rotate; when the change-direction driving box 323 moves to the lowermost end, the seedling throwing lever 332 turns on the swing arm paddle 337 and the seedling throwing paddle 334, driving the seedling receiving cylinder 331 to move to just above the well cellar hole built and completes the seedling throwing, and when the change-direction driving box 323 moves to the uppermost end, the swing arm 336 swings to one side of the seedling separation cylinder 341 under the action of the swing arm spring 338, and the seedling receiving cylinder 331 is located just below the seedling separation cylinder 341. At this time, the seedling receiving cylinder 331 is closed to receive the potted seedlings dropped in sequence by the seedling separation cylinder 341.

[0080] The present invention adopts a variable speed drive method to realize the rotary cellar digging and planting operation of the rotating cellar digging and planting device in the process of continuous operation with the walking chassis 1, and completes the cellar digging and planting operation at one time, with good synchronization of seedling throwing, good operation effect and high work efficiency. When the direction-changing drive box 323 rotates with the planetary gear box 324, the chain drive component 322 meshes with the power input shaft sprocket and drives it to rotate, and drives the power output shaft to rotate after the right-angle reversing gear is changed, thereby driving the cellar digging device 35 to rotate and complete the cellar digging operation. When the seedling receiving cylinder 331 receives the seedlings at the upper end, the movement direction is consistent with the seedling separation cylinder 341, which ensures the synchronization of the seedling receiving, and when the seedlings are thrown at the lower end, the movement trajectory is consistent with the cellar digging device 35, which ensures the synchronization of the seedling throwing.

[0081] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A rotary well-pit planting device, installed on a tobacco transplanter, characterized in that: include: frame; The driving mechanism comprises a driving motor, a direction-changing driving box, a planetary gearbox and a non-circular gearbox, wherein the driving motor and the non-circular gearbox are respectively mounted on the frame, the non-circular gearbox is respectively connected to the driving motor and the planetary gearbox, and the non-circular gearbox drives the planetary gearbox to rotate at a variable speed as a whole; the direction-changing driving box is connected to the planetary gearbox and keeps a vertical downward position to rotate together with the planetary gearbox; A seedling separation mechanism is mounted on the top of the frame and connected to the non-circular gear box; A pit device, connected to the direction-changing drive box, for realizing rotary pit-building, wherein the pit device and the direction-changing drive box rotate with the planetary gear box at variable speeds and rotate themselves at the same time; and The seedling throwing mechanism is connected to the direction-changing drive box; when the direction-changing drive box moves to the top end along with the planetary gear box, the seedling throwing mechanism receives the potted seedlings thrown by the seedling separation mechanism; when the direction-changing drive box moves to the bottom end along with the planetary gear box, the well cellar device completes the well digging, and the seedling throwing mechanism throws the seedlings right above the well cellar hole that has been built.

2. The rotary well-digging and cellar-planting device according to claim 1, characterized in that: The driving mechanism also includes a chain driving component, which is installed on the frame and meshes with a sprocket on the lateral power input shaft of the direction-changing drive box, and is used to drive the downward power output shaft of the direction-changing drive box. The well digging device is connected to the downward power output shaft of the direction-changing drive box, and the downward power output shaft of the direction-changing drive box drives the well digging device to rotate around its own axis to complete the digging operation.

3. The rotary well-digging and cellar-planting device according to claim 2, characterized in that: The chain drive component is located on the front side of the direction changing drive box. When the direction changing drive box rotates with the planetary gear box, the chain drive component meshes with the sprocket on the lateral power input shaft of the direction changing drive box and drives the lateral power input shaft to rotate, and drives the downward power output shaft of the direction changing drive box to rotate after changing speed through the right-angle reversing gear.

4. The rotary well-digging and cellar-planting device according to claim 1, characterized in that: The seedling throwing mechanism comprises: A swing arm, one end of which is mounted on the direction-changing drive box and swings around the direction-changing drive box; a swing arm paddle and a swing arm spring are mounted on the swing arm near the direction-changing drive box, one end of the swing arm spring is connected to the swing arm, and the other end of the swing arm spring is connected to the direction-changing drive box; A seedling receiving tube is installed at the other end of the swing arm, and an opening is provided at the bottom end of the seedling receiving tube; and The seedling casting component includes a seedling casting lever, a seedling casting pull rod, a seedling casting paddle and a seedling casting spring. The seedling casting lever is installed on the planetary gear box corresponding to the swing arm paddle. One end of the seedling casting pull rod is connected to the swing arm, and the other end of the seedling casting pull rod is connected to the seedling receiving tube. The seedling casting paddle is installed on the swing arm corresponding to the seedling casting pull rod; the seedling casting spring is installed on the seedling receiving tube and is used to keep the opening and closing mouth of the seedling receiving tube in a closed position.

5. The rotary well-digging and cellar-planting device according to claim 4, characterized in that: The seedling receiving tube has the same movement direction as the seedling separating tube when receiving seedlings, so as to ensure the synchronization of seedling receiving; the movement trajectory of the seedling receiving tube when dropping seedlings is consistent with that of the well cellar device, so as to ensure the synchronization of dropping seedlings.

6. The rotary well-digging and cellar-planting device according to claim 1, characterized in that: The seedling separation mechanism includes a seedling separation cylinder and a seedling separation cylinder driving shaft. The seedling separation cylinder is installed on the frame through a seedling separation sprocket. The seedling separation cylinder driving shaft is installed on the frame through a bearing and is used to drive multiple seedling separation cylinders to achieve rotational motion. One end of the seedling separation cylinder driving shaft is connected to the non-circular gear box through a chain drive, and the other end of the seedling separation cylinder driving shaft is connected to the seedling separation sprocket through a commutator.

7. A tobacco transplanter, characterized in that: It comprises a walking chassis and a lifting mechanism installed on the walking chassis, a scissors-type lifting support link and the rotary well-digging and planting device according to any one of claims 1 to 6, wherein the lifting mechanism is used to lift the rotary well-digging and planting device and cooperate with the scissors-type lifting support link to adjust the height of the rotary well-digging and planting device.

8. The tobacco transplanter according to claim 7, characterized in that: The non-circular gear box is provided with two pairs of mutually meshing elliptical gears for realizing the variable speed circular motion of the planetary gear box around the power output shaft of the non-circular gear box. The variable speed circular motion of the planetary gear box cooperates with the uniform speed linear motion of the walking chassis to realize the straight up and down motion trajectory of the well cellar device to complete the in-situ cellar digging operation.

9. A rotary well-pit planting method, characterized in that: The rotary well-digging and cellar-planting device according to any one of claims 1 to 6 is used to realize on-site cellar digging and planting in the process of continuous operation with the traveling chassis, and the well-digging and cellar-planting operations are completed at one time, including the following steps: Seedling placement step: the seedling placement tube places the pot seedlings in sequence; The cellar digging step adopts a non-circular gear speed-changing planetary gearbox to drive the cellar digger to move, and the cellar digger rotates around its own central axis while rotating around the non-circular gearbox to complete the straight-up and straight-down in-situ cellar digging operation; Planting step: when the direction-changing driving box moves to the bottom, the seedling-casting lever switches on the swing arm paddle and the seedling-casting paddle, driving the seedling-receiving cylinder to move to the top of the well-drilled cellar hole and the bottom is opened to complete the seedling-casting; when the direction-changing driving box moves to the top, the swing arm swings to one side of the seedling-separating cylinder under the action of the swing arm spring, the seedling-receiving cylinder is located directly below the seedling-separating cylinder, and the bottom of the seedling-receiving cylinder is closed to receive the potted seedlings cast in sequence by the seedling-separating cylinder; as well as Repeat the above steps until all the well digging and planting operations are completed.

10. The rotary well-digging cellar planting method according to claim 9, characterized in that: In the seedling separation and placement step, the driving motor drives the non-circular gear box, and the power output shaft at one end of the non-circular gear box drives the multiple seedling separation cylinders to rotate at a uniform speed through the seedling cylinder driving shaft; During the cellaring step, the power output shaft at the other end of the non-circular gear box drives the planetary gear box as a whole to perform speed-changing rotational motion, the direction-changing drive box rotates with the planetary gear box and maintains a vertical downward posture, the sprocket on the lateral power input shaft of the direction-changing drive box engages with the chain drive component, driving the downward power output shaft of the direction-changing drive box, driving the well cellar device to rotate around its own axis while performing speed-changing rotational motion with the planetary gear box.

Images