CN117158166A - Transplanting device of well cellar type transplanting machine - Google Patents

Abstract

The invention relates to the technical field of agricultural mechanical equipment and discloses a transplanter of a well pit transplanter, which comprises a well pit forming mechanism for forming a well pit on a ridge and a seedling throwing mechanism for throwing tobacco seedlings into the well pit, wherein the well pit forming mechanism comprises a well head forming assembly and a driving assembly for driving the well head forming assembly to form the well pit, the well head forming assembly comprises a well head forming support and a well head arranged below the well head forming support, the driving assembly comprises a reduction box connected with a transplanter power motor and a connecting rod assembly for driving the well head forming assembly to form an elliptical motion track with a central shaft always vertically downwards, the well head forming assembly is connected with the reduction box through the connecting rod assembly, the seedling throwing mechanism comprises a hopper shutter for realizing that the tobacco seedlings fall into the well pit in sequence, and the hopper is connected with the reduction box through the hopper opening and closing cable assembly.

Description

Transplanting device of well cellar type transplanting machine

Technical Field

The invention relates to the technical field of agricultural mechanical equipment, in particular to a transplanter of a pit type transplanter.

Background

In the traditional transplanting machine, seedlings are fed into duckbilled planting devices through seedling feeding trays, the planting devices are driven by a connecting rod mechanism to finish the work of hole opening, planting and the like, and then the pressing wheels cover soil to finish transplanting operation. The transplanting does not need bending over, only needs manual work to be accompanied with seedling throwing, is simple and easy, and has high operation efficiency.

The well cellar type transplanting technology refers to a technology that a cone well cellar with the diameter of 9 cm and the depth of about 20 cm is formed in a ridge body during tobacco leaf transplanting, tobacco seedlings with the stem height of 5 cm and the leaf number of about 5 are vertically and completely thrown into the well cellar, the top of the tobacco plant is ensured to be about 3 cm away from the well cellar opening, and a proper amount of accompanying soil is used for covering the root system of the tobacco seedlings. With the popularization and development of pit transplanting technology, the traditional transplanting machine is not suitable for new transplanting technology.

In recent years, some backpack well forming machines are provided with holes on ridges before seedling throwing, but when the machine is used for well forming, the wrist is subjected to large impact force, the well pit is poor in forming quality and nonstandard in spacing, the later seedling throwing state is restored to the original manual seedling throwing state, the bending frequency is high, and the manual labor intensity is high.

Disclosure of Invention

The invention aims to provide a transplanting device of a pit-type transplanting machine, which has the advantages of good pit forming quality, constant interval, high survival rate and small labor intensity.

The technical aim of the invention is realized by the following technical scheme:

the utility model provides a transplanter of well cellar type transplanter, includes the well cellar forming mechanism that is used for forming the well cellar on the ridge and is used for throwing the seedling into the well cellar in the seedling mechanism, well cellar forming mechanism includes the first assembly of well formation and is used for driving the first assembly of well formation and form the drive assembly of well cellar, the first assembly of well formation includes the first support of well formation and installs the first of well formation in the first support below of well formation, the drive assembly includes the reducing gear box that is connected with transplanter power motor and is used for driving the first assembly of well formation and has formed the center pin and have perpendicular oval motion trail always downwards the connecting rod assembly, the first assembly of well formation is connected with the reducing gear box through the connecting rod assembly, seedling mechanism of throwing is including the storehouse fill shutter that is used for realizing that the tobacco seedling falls into the well cellar in proper order, the storehouse fill shutter passes through storehouse fill switching gu line assembly and reducing gear box connection.

Through adopting above-mentioned technical scheme, the reducing gear box moves under the drive of transplanter power motor to the well head assembly that is connected through link mechanism drive forms the center pin and vertical decurrent all the time, oval motion trail, make when the transplanter continuously walks forward, well head assembly is in the interval from beginning to breaking away from the ridge face to end with the ridge face contact, the displacement component in the walking direction is zero all the time, thereby ensure that the transplanter is in the fashioned quality of well cellar in walking process and the interval between the well cellar is invariable, make throwing seedling mechanism can be fine throw into the well cellar with the tobacco seedling, improved the quality that the tobacco seedling was transplanted greatly, need not later stage manual throwing seedling, effectively reduced people's intensity of labour, equipment automated effect is better.

The invention is further provided with: the connecting rod assembly comprises a left front connecting rod assembly, a left rear connecting rod assembly, a right front connecting rod assembly and a swing arm cam assembly, one end of the left front connecting rod assembly is rotationally connected with a swing arm cam rotating shaft on the reduction gearbox, the swing arm cam assembly is in key connection with the swing arm cam rotating shaft on the reduction gearbox, the rotating shaft at one end of the left rear connecting rod assembly penetrates through a bearing hole of the reduction gearbox and is in key connection with one end of the right front connecting rod assembly at the other side of the reduction gearbox, and a bearing on the left rear connecting rod assembly and a cam on the swing arm cam assembly form a cam assembly pair.

The invention is further provided with: the other end of the left front connecting rod assembly and the other end of the left rear connecting rod assembly are respectively and rotatably connected with two bearing holes of the triangular plate assembly.

Through adopting above-mentioned technical scheme, drive the swing arm cam assembly through swing arm cam pivot when the reducing gear box moves and rotate, the cam intermittent type on the swing arm cam assembly extrudees the bearing on the left back connecting rod assembly when the swing arm cam assembly is rotatory, when the cam intermittent type on the swing arm cam assembly extrudes the bearing on the left back connecting rod assembly, make the left back connecting rod assembly rotate around its pivot that passes the bearing hole of reducing gear box, make the other end of left back connecting rod assembly be the arc orbit and swing forward when the pivot that the left back connecting rod assembly passed the bearing hole of reducing gear box rotates around it, the other end of left back connecting rod assembly is the arc orbit and swings forward when the other end of left back connecting rod assembly is the arc orbit and drives the triangle dish assembly that is connected with the other end of left back connecting rod assembly and swing forward in step to be the arc orbit.

The invention is further provided with: the connecting rod assembly further comprises two lower connecting rods and an upper connecting rod, the two lower connecting rods are fixed into a whole through a connecting rod beam, one ends of the two lower connecting rods are respectively connected with the other end of the right front connecting rod assembly and a connecting shaft of the triangular plate assembly in a rotating mode, the other ends of the two lower connecting rods are respectively hinged to the well head forming support, one end of the upper connecting rod is hinged to the triangular plate assembly, the other end of the upper connecting rod is hinged to the well head forming support, and the upper connecting rod is located above the lower connecting rod close to one side of the triangular plate assembly and parallel to the lower connecting rod.

The invention is further provided with: the connecting rod assembly further comprises a right crank connected with the reduction gearbox, one end of the right crank is connected with a swing arm rotating shaft key on the reduction gearbox, the other end of the right crank is rotationally connected with one end of the right rear connecting rod assembly, and the other end of the right rear connecting rod assembly is rotationally connected with a shaft in the middle of the connecting rod beam.

By adopting the technical scheme, the left rear connecting rod assembly also drives the right front connecting rod assembly connected with the left rear connecting rod assembly by the key of the rotating shaft penetrating through the bearing hole of the reduction gearbox to synchronously rotate around the rotating shaft penetrating through the bearing hole of the reduction gearbox, so that the other end of the right front connecting rod assembly and the triangular plate assembly synchronously swing forwards along an arc track, two lower connecting rods respectively connected with the right front connecting rod assembly and the triangular plate assembly synchronously swing forwards along an arc track, when the triangular plate assembly swings forwards along an arc track, the upper connecting rod, the lower connecting rod and the well head support connected with the other ends of the upper connecting rod and the lower connecting rod synchronously swing forwards along an arc track, meanwhile, as the connecting rod beam fixed between the two lower connecting rods is connected with the right crank through the right rear connecting rod assembly, one end of the right crank is driven to synchronously move along the reciprocating curve of the connecting rod beam fixed with the two lower connecting rods when the rotating shaft of the swing arm on the reduction gearbox, the well head support connected with the other ends of the connecting rods moves forwards along the arc track, the well head support fixed with the right crank and the triangular plate assembly always keeps the combined lower than the right crank and moves along the oval track, and continuously along the well head support in the vertical track moving along the vertical track, and continuously along the vertical track formed in the vertical track along the vertical track formed in the vertical track, the quality of the well pit forming in the running process of the transplanter is effectively ensured, and the interval between the well pits is constant.

The invention is further provided with: the rotary shaft on the swing arm cam assembly and the ring groove nut on the well head support are tensioned by a side tension spring.

By adopting the technical scheme, the side tension spring is used for tensioning between the rotating shaft on the swing arm cam assembly and the ring groove nut on the well head assembly, so that the bearing on the left rear connecting rod assembly is forced to be always contacted with the cam on the swing arm cam assembly, and the reliability of compound motion is ensured.

The invention is further provided with: the well head assembly further comprises a gear motor for driving the well head to rotate, the gear motor is fixedly connected with the well head support through a motor mounting seat, and the well head is connected with an output shaft key of the gear motor.

Through adopting above-mentioned technical scheme, gear motor is used for driving the well head rotation for the well head is in rotary motion state all the time under compound motion, and during the well cellar for storing things shaping, the well cellar for storing things pore wall can be built to rotatory well head, effectively reduces the probability that well cellar for storing things pore wall collapses, has further guaranteed the shaping quality in well cellar for storing things hole.

The invention is further provided with: the well head is characterized in that a well pit chamfering head coaxial with the well head is further arranged above the well head, an ear fixedly connected with the well head is arranged at the upper end of the well pit chamfering head, and a plurality of groups of mounting holes which are respectively same as the different heights connected with the ear of the well pit chamfering head are arranged on the well head.

Through adopting above-mentioned technical scheme, well cellar for storing things chamfer head is used for carrying out the chamfer to well cellar for storing things hole upper end when well cellar for shaping to make the upper end in well cellar for storing things hole become the flared, be used for on the one hand throwing the in-process of seedling to the tobacco seedling and lead to the tobacco seedling more easily to be thrown into well cellar for storing things, the reliability that the tobacco seedling transplanted has been improved greatly, on the other hand, the flared of upper end in well cellar for storing things hole becomes the flared and is favorable to making the tobacco seedling to throw into in the well cellar for storing things later on the branch and leaf of its root system top remain and be the state of opening naturally, avoid its branch and leaf to extrude each other and cause impaired or rotten condition, effectively improved the survival rate of tobacco seedling and the quality that the tobacco seedling transplanted.

The invention is further provided with: the bin shutter comprises a seat body, a left shutter and a right shutter, a left rotating arm and a right rotating arm are fixedly connected to the left shutter and the right shutter respectively, the left rotating arm and the right rotating arm are arranged in an X-shaped cross mode, the upper ends of the left shutter and the right shutter are fixed to the lower ends of the left rotating arm and the right rotating arm respectively, and the crossed position of the left rotating arm or the right rotating arm is connected with the seat body in a rotating mode through a rotating pin.

Through adopting above-mentioned technical scheme, can drive the left shutter and the right shutter of fixing respectively at its lower extreme when the lower extreme of left rocking arm and right rocking arm moves to the direction that is close to each other or is kept away from each other around the round pin respectively and move to the direction that is close to each other or is kept away from each other, when left shutter and right shutter move to the direction that is close to each other, the bottom opening of left shutter and right shutter is closed, tobacco seedling can't discharge, when left shutter and right shutter move to the direction that is kept away from each other, the bottom opening of left shutter and right shutter is opened, tobacco seedling discharges and falls into in the fashioned well cellar from the opening of left shutter and right shutter bottom opening through controlling left shutter and right shutter and switching repeatedly, can realize lasting intermittent type nature blanking to tobacco seedling.

The invention is further provided with: the lower extreme one side of left rocking arm or right rocking arm is connected with the one end of hopper switching stay wire assembly, the other end of hopper switching stay wire assembly is connected with cam follower dish one end, the middle part of cam follower dish rotates with the fixed bolster above the reducing gear box and is connected, the bearing of the other end of cam follower dish becomes the cam assembly pair with the hopper switching cam of the last installation of hopper switching control shaft on the reducing gear box, be connected through reset spring between left shutter and the right shutter.

Through adopting above-mentioned technical scheme, drive the rotation of bin switching cam when the bin switching control axle on the reducing gear is rotatory, the drive cam follower dish is rotatory when the bin switching cam is rotatory, when the cam follower dish rotates to its one end of being connected with bin switching stay wire assembly gradually keep away from left rocking arm or right rocking arm, make the other end of bin switching stay wire assembly pull the lower extreme of left rocking arm or right rocking arm of being connected with it, after left rocking arm or right rocking arm's lower extreme was pulled, the lower extreme of left rocking arm and right rocking arm is moved to the direction of keeping away from each other around the round pin respectively and is made the bottom opening of left shutter and right shutter open, when the cam follower dish is rotatory to its one end of being connected with bin switching stay wire assembly be close to left rocking arm or right rocking arm gradually, left shutter and right shutter are respectively around the round pin to the bottom opening of being close to each other direction of round pin motion under reset spring's effect make left shutter and right shutter, so repeatedly, in order to realize continuous, intermittent blanking operation, and simple structure, convenient operation.

The beneficial effects of the invention are as follows:

1. according to the invention, the reduction gearbox runs under the drive of the power motor of the transplanter, so that the central shaft is formed by driving the well head assembly connected with the reduction gearbox through the link mechanism to always vertically downwards form an elliptic motion track, when the transplanter continuously walks forwards, the displacement component of the well head assembly in the walking direction is always zero in the interval from the contact with the ridge surface to the separation from the ridge surface, so that the quality of pit formation and the interval between pits in the walking process of the transplanter are ensured to be constant, the seedling throwing mechanism can well throw tobacco seedlings into the pits, the tobacco seedling transplanting quality is greatly improved, later manual seedling throwing is not needed, the labor intensity of people is effectively reduced, and the equipment automation effect is better.

2. The well head assembly further comprises a gear motor for driving the well head to rotate, the gear motor is fixedly connected with the well head support through the motor mounting seat, the well head is connected with an output shaft key of the gear motor, the gear motor is used for driving the well head to rotate, the well head is always in a rotary motion state under the compound motion, when the well pit is formed, the rotary well head can be used for building the wall of the well pit, the collapse probability of the wall of the well pit is effectively reduced, and the forming quality of the well pit is further guaranteed.

3. According to the invention, the well pit chamfering head coaxial with the well head is arranged above the well head, and the upper end of the well pit hole is chamfered when the well pit is formed through the well pit chamfering head, so that the upper end of the well pit hole is in an expanded horn shape, on one hand, the well pit chamfering head is used for guiding tobacco seedlings in the process of throwing the tobacco seedlings, so that the tobacco seedlings are easier to throw into the well pit, the reliability of tobacco seedling transplanting is greatly improved, on the other hand, the upper end of the well pit hole is in an expanded horn shape, so that branches and leaves above root systems of the tobacco seedlings are kept in a natural open state after throwing the tobacco seedlings into the well pit, the situation that the branches and leaves are mutually extruded to cause damage or rot is avoided, and the survival rate of the tobacco seedlings and the quality of tobacco seedling transplanting are effectively improved.

4. According to the invention, the hopper opening and closing cam is driven to rotate when the hopper opening and closing control shaft on the reduction gearbox rotates, the cam follower is driven to rotate when the hopper opening and closing cam rotates, when the cam follower rotates to the point that one end of the cam follower, which is connected with the hopper opening and closing wire assembly, is gradually far away from the left rotating arm or the right rotating arm, the other end of the hopper opening and closing wire assembly pulls the lower end of the left rotating arm or the right rotating arm connected with the hopper opening and closing wire assembly, after the lower end of the left rotating arm or the right rotating arm is pulled, the lower ends of the left rotating arm and the right rotating arm respectively move around the rotating pin in the direction far away from each other, so that the bottom openings of the left shutter and the right shutter are opened, and when the cam follower rotates to the point that one end of the cam follower, which is connected with the hopper opening and closing wire assembly, is gradually close to the left rotating arm or the right rotating arm, the lower ends of the left shutter and the right shutter respectively move around the rotating pin in the direction near each other under the action of the reset spring, so that the bottom openings of the left shutter and the right shutter are closed, and the left shutter are repeatedly, continuous and intermittent blanking operations are realized, the structure is simple, and the operation is convenient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a construction of a transplanting machine side of a pit-type transplanting machine of the present invention.

Fig. 2 is a schematic structural view of a reduction gearbox in a transplanter of a pit-type transplanter.

FIG. 3 is a schematic illustration of the connection of a link assembly to a wellhead assembly in a transplanter of a pit-type transplanter of the present invention.

Fig. 4 is a schematic structural view of a wellhead assembly in a transplanter of a pit-type transplanter according to the present invention.

Fig. 5 is a schematic diagram of the structure of a well head in a transplanter of a pit-type transplanter according to the present invention.

Fig. 6 is a schematic view of the construction of the other side of the transplanting machine of the well cellar type transplanting machine of the present invention.

Fig. 7 is an exploded view of a hopper shutter in a transplanter of a pit-type transplanter according to the present invention.

In the figure, 1, a pit forming mechanism; 2. a seedling throwing mechanism; 3. a wellhead assembly; 301. a wellhead support; 302. forming a wellhead; 303. a speed reducing motor; 304. a motor mounting seat; 305. chamfering head of well pit; 306. an ear; 307. a mounting hole; 4. a drive assembly; 5. a reduction gearbox; 501. swing arm cam shaft; 502. a swing arm rotating shaft; 503. a hopper opening and closing control shaft; 504. a hopper opening and closing cam; 6. a connecting rod assembly; 601. a left front link assembly; 602. a left rear link assembly; 603. a right front link assembly; 604. swing arm cam assembly; 605. a cam; 606. a triangular plate assembly; 607. a lower connecting rod; 608. an upper connecting rod; 609. a connecting rod beam; 610. a right crank; 611. a nut with a ring groove; 612. a side tension spring; 613. a right rear link assembly; 7. a bin shutter; 701. a base; 702. a left shutter; 703. a right shutter; 704. a left rotating arm; 705. a right rotating arm; 706. a rotary pin; 707. a return spring; 8. the bin opening and closing stay wire assembly; 9. a cam follower plate; 10. and (5) fixing the bracket.

Detailed Description

The technical scheme of the present invention will be clearly and completely described in connection with specific embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.

As shown in fig. 1, the transplanter of a well cellar type transplanter comprises a well cellar forming mechanism 1 for forming a well cellar on a ridge and a seedling throwing mechanism 2 for throwing tobacco seedlings into the well cellar, wherein the well cellar forming mechanism 1 comprises a well head assembly 3 and a driving assembly 4 for driving the well head assembly 3 to form the well cellar, the well head assembly 3 comprises a well head support 301 and a well head 302 arranged below the well head support 301, the driving assembly 4 comprises a reduction box 5 connected with a transplanter power motor and a connecting rod assembly 6 for driving the well head assembly 3 to form an oval motion track with a central shaft always vertically downwards, the well head assembly 3 is connected with the reduction box 5 through the connecting rod assembly 6, the seedling throwing mechanism 2 comprises a bin shutter 7 for enabling the tobacco seedlings to sequentially fall into the well cellar, and the bin shutter 7 is connected with the reduction box 5 through a bin opening and closing wire assembly 8.

Further, as shown in fig. 1 to 3, the link assembly 6 includes a left front link assembly 601, a left rear link assembly 602, a right front link assembly 603, and a swing arm cam assembly 604, one end of the left front link assembly 601 is rotationally connected with the swing arm cam shaft 501 on the reduction gearbox 5, the swing arm cam assembly 604 is keyed with the swing arm cam shaft 501 on the reduction gearbox 5, the shaft at one end of the left rear link assembly 602 passes through a bearing hole of the reduction gearbox 5 and is keyed with one end of the right front link assembly 603 at the other side of the reduction gearbox 5, and the bearing on the left rear link assembly 602 and the cam 605 on the swing arm cam assembly 604 form a cam assembly pair.

Further, the other end of the left front link assembly 601 and the other end of the left rear link assembly 602 are respectively rotatably connected with two bearing holes of the cam plate assembly 606.

Further, the link assembly 6 further includes two lower links 607 and an upper link 608, where the two lower links 607 are fixed as a whole by a link beam 609, one ends of the two lower links 607 are respectively rotatably connected with the other end of the right front link assembly 603 and the connecting shaft of the cam plate assembly 606, the other ends of the two lower links are respectively hinged with the wellhead support 301, one end of the upper link 608 is hinged with the cam plate assembly 606, the other end of the upper link 608 is hinged with the wellhead support 301, and the upper link 608 is located above the lower link 607 near one side of the cam plate assembly 606 and parallel to the lower link 607.

Further, the link assembly 6 further includes a right crank 610 connected to the reduction gearbox 5, one end of the right crank 610 is in key connection with the swing arm rotating shaft 502 on the reduction gearbox 5, the other end of the right crank 610 is rotationally connected with one end of the right rear link assembly 613, and the other end of the right rear link assembly 613 is rotationally connected with a shaft in the middle of the link beam 609.

Further, the space between the rotating shaft on the swing arm cam assembly 604 and the ring-grooved nut 611 on the wellhead support 301 is tensioned by a side tension spring 612.

Further, as shown in fig. 4, the wellhead assembly 3 further includes a gear motor 303 for driving the wellhead 302 to rotate, the gear motor 303 is fixedly connected with the wellhead support 301 through a motor mounting seat 304, and the wellhead 302 is connected with an output shaft of the gear motor 303 in a key manner.

Further, a pit chamfering head 305 coaxial with the well forming head 302 is further disposed above the well forming head 302, an ear portion 306 fixedly connected with the well forming head 302 is disposed at the upper end of the pit chamfering head 305, and a plurality of groups of mounting holes 307 (as shown in fig. 5) which are respectively connected with the ear portion 306 of the pit chamfering head 305 and have different heights are disposed on the well forming head 302.

Further, as shown in fig. 7, the hopper shutter 7 includes a base 701, a left shutter 702 and a right shutter 703, the left shutter 702 and the right shutter 703 are fixedly connected with a left rotating arm 704 and a right rotating arm 705, the left rotating arm 704 and the right rotating arm 705 are arranged in an X-shaped cross, the upper ends of the left shutter 702 and the right shutter 703 are respectively fixed at the lower ends of the left rotating arm 704 and the right rotating arm 705, and the crossing position of the left rotating arm 704 or the right rotating arm 705 is rotatably connected with the base 701 through a rotating pin 706.

Further, one side of the lower end of the left rotating arm 704 or the right rotating arm 705 is connected with one end of the hopper opening and closing wire assembly 8, the other end of the hopper opening and closing wire assembly 8 is connected with one end of the cam follower disk 9 (as shown in fig. 6), the middle part of the cam follower disk 9 is rotatably connected with the fixed bracket 10 above the reduction gearbox 5, the bearing at the other end of the cam follower disk 9 is in a cam assembly pair with the hopper opening and closing cam 504 mounted on the hopper opening and closing control shaft 503 on the reduction gearbox 5, and the left shutter 702 and the right shutter 703 are connected through a return spring 707.

The working principle of the invention is as follows: the reduction gearbox 5 runs under the drive of a power motor of the transplanter, the reduction gearbox 5 drives the swing arm cam assembly 604 to rotate through the swing arm cam rotating shaft 501 when running, a cam 605 on the swing arm cam assembly 604 intermittently extrudes a bearing on the left rear connecting rod assembly 602 when the swing arm cam assembly 604 rotates, when the cam on the swing arm cam assembly 604 intermittently extrudes the bearing on the left rear connecting rod assembly 602, the left rear connecting rod assembly 602 rotates around a rotating shaft of the left rear connecting rod assembly, which penetrates through a bearing hole of the reduction gearbox 5, the left rear connecting rod assembly 602 rotates around a rotating shaft of the left rear connecting rod assembly, which penetrates through the bearing hole of the reduction gearbox 5, so that the other end of the left rear connecting rod assembly 602 swings forwards in an arc track, and a cam disc assembly 606 connected with the other end of the left rear connecting rod assembly 602 swings forwards in an arc track synchronously. The left rear connecting rod assembly 602 also drives the right front connecting rod assembly 603 connected with the left rear connecting rod assembly 602 by a rotary shaft key penetrating through a bearing hole of the reduction box 5 to synchronously rotate when rotating around the rotary shaft penetrating through the bearing hole of the reduction box 5, so that the other end of the right front connecting rod assembly 603 and the cam plate assembly 606 synchronously swing forwards in an arc track, the two lower connecting rods 607 respectively connected with the right front connecting rod assembly 603 and the cam plate assembly 606 synchronously swing forwards in an arc track, when the cam plate assembly 606 swings forwards in an arc track, the upper connecting rod 608, the lower connecting rod 607 connected with the cam plate assembly 606 and the wellhead support 301 connected with the other ends of the upper connecting rod 608 and the lower connecting rod 607 synchronously swing forwards in an arc track, meanwhile, as the connecting rod beams 609 fixed between the two lower connecting rods 607 are connected with the right crank 610 through the right rear connecting rod assembly 613, one end of the right crank 610 drives the right rear connecting rod assembly 613 to drive the connecting rod beams 609 fixedly connected with the two lower connecting rods 607 to do reciprocating curve motion when the swing arm rotating shaft 502 is driven by the swing arm rotating shaft 502 on the reduction gearbox 5, so that the well head support 301 connected with the other ends of the two lower connecting rods 607 fixedly connected with the connecting rod beams 609 always keeps vertically downward and moves in an elliptical motion track under the combination of the movement of the right crank 610 and the triangle disc assembly 606, the well head 302 on the well head support 301 keeps vertically downward and moves in an elliptical motion track, the transplanting machine continuously walks forwards, a plurality of vertically downward well vaults are continuously and equidistantly formed at the lower ends of the well head 302 on a ridge surface in the process of moving in the elliptical motion track, and the displacement component of the well head 302 in the walking direction is always zero in the interval from the contact with the ridge surface to the end of the separation from the ridge surface, the transplanting machine effectively ensures the forming quality of the pit and the constant interval between the pits in the walking process, so that the seedling throwing mechanism 2 can well throw tobacco seedlings into the pit, the transplanting quality of the tobacco seedlings is greatly improved, later manual seedling throwing is not needed, and the labor intensity of people is effectively reduced;

when the seedling throwing mechanism 2 works, the hopper opening and closing control shaft 503 on the reduction gearbox 5 drives the hopper opening and closing cam 504 to rotate, the cam follower disk 9 is driven to rotate when the hopper opening and closing cam 504 rotates, when the cam follower disk 9 rotates to the point that one end of the cam follower disk is connected with the hopper opening and closing wire assembly 8 is gradually far away from the left rotating arm 704 or the right rotating arm 705, the other end of the hopper opening and closing wire assembly 8 pulls the lower end of the left rotating arm 704 or the right rotating arm 705 connected with the other end, after the lower end of the left rotating arm 704 or the right rotating arm 705 is pulled, the lower ends of the left rotating arm 704 and the right rotating arm 705 respectively move around the rotating pin 706 to the directions far away from each other, so that the bottom openings of the left shutter 702 and the right shutter 703 are opened, when the cam follower disk 9 rotates to the end connected with the hopper opening and closing stay wire assembly 8 and gradually approaches the left rotating arm 704 or the right rotating arm 705, the lower ends of the left shutter 702 and the right shutter 703 respectively move around the rotating pin 706 to the directions approaching to each other under the action of the reset spring 707, so that the bottom openings of the left shutter 702 and the right shutter 703 are closed, and the operation is repeated, so that continuous and intermittent blanking operation is realized, the structure is simple, the operation is convenient, the equipment automation effect is better, wherein the hopper opening and closing control shaft 503 and the swing arm cam rotating shaft 501 on the reduction gearbox 5 are respectively driven by a sprocket chain, gears and the like, a fixed transmission ratio is formed between the shafts, and the bearing holes on the reduction gearbox 5 are independent bearing seats and only play a supporting role and have no torque transmission.

Claims (10)

1. A transplanter of well cellar type transplanter which is characterized in that: including being used for forming well cellar forming mechanism (1) and being used for throwing into the well cellar with the tobacco seedling in well cellar into seedling mechanism (2), well cellar forming mechanism (1) include become first assembly (3) and be used for driving become first assembly (3) and form drive assembly (4) of well cellar, become first assembly (3) including become first support (301) and install become first (302) in the first support (301) below of becoming, drive assembly (4) include with transplanting machine power motor connected reducing gear box (5) and be used for driving become first assembly (3) and formed the connecting rod assembly (6) of the oval motion track of center pin vertical downward all the time, become first assembly (3) and be connected with reducing gear box (5) through connecting rod assembly (6), it is including being used for realizing that the tobacco seedling falls into well cellar's hopper shutter (7) in proper order to throw first assembly (3), hopper shutter (7) are connected with reducing gear box (5) through hopper switching line assembly (8).

2. A transplanter of a pit transplanter according to claim 1, wherein: the connecting rod assembly (6) comprises a left front connecting rod assembly (601), a left rear connecting rod assembly (602), a right front connecting rod assembly (603) and a swing arm cam assembly (604), one end of the left front connecting rod assembly (601) is rotationally connected with a swing arm cam rotating shaft (501) on the reduction gearbox (5), the swing arm cam assembly (604) is in key connection with the swing arm cam rotating shaft (501) on the reduction gearbox (5), the rotating shaft at one end of the left rear connecting rod assembly (602) penetrates through a bearing hole of the reduction gearbox (5) and is in key connection with one end of the right front connecting rod assembly (603) at the other side of the reduction gearbox (5), and a bearing on the left rear connecting rod assembly (602) and a cam (605) on the swing arm cam assembly (604) form a cam assembly pair.

3. A transplanter of a pit transplanter according to claim 2, wherein: the other end of the left front connecting rod assembly (601) and the other end of the left rear connecting rod assembly (602) are respectively and rotatably connected with two bearing holes of the triangular plate assembly (606).

4. A transplanter of a pit transplanter according to claim 3, wherein: the connecting rod assembly (6) further comprises two lower connecting rods (607) and an upper connecting rod (608), the two lower connecting rods (607) are fixed into a whole through a connecting rod beam (609), one ends of the two lower connecting rods are respectively connected with the other ends of the right front connecting rod assembly (603) and the connecting shaft of the triangular plate assembly (606) in a rotating mode, the other ends of the two lower connecting rods are respectively hinged to the well head supporting seat (301), one ends of the upper connecting rods (608) are hinged to the triangular plate assembly (606), the other ends of the upper connecting rods (608) are hinged to the well head supporting seat (301), and the upper connecting rods (608) are located above the lower connecting rods (607) close to one side of the triangular plate assembly (606) and are parallel to the lower connecting rods (607).

5. The transplanter of a pit type transplanter according to claim 4, wherein: the connecting rod assembly (6) further comprises a right crank (610) connected with the reduction gearbox (5), one end of the right crank (610) is connected with a swing arm rotating shaft (502) on the reduction gearbox (5) in a key mode, the other end of the right crank (610) is rotatably connected with one end of a right rear connecting rod assembly (613), and the other end of the right rear connecting rod assembly (613) is rotatably connected with a shaft in the middle of a connecting rod beam (609).

6. The transplanter of a pit type transplanter according to claim 5, wherein: the rotary shaft on the swing arm cam assembly (604) and the ring groove nut (611) on the well head support (301) are tensioned by a side tension spring (612).

7. A transplanter of a pit transplanter according to claim 1, wherein: the well head assembly (3) further comprises a gear motor (303) for driving the well head (302) to rotate, the gear motor (303) is fixedly connected with the well head support (301) through a motor mounting seat (304), and the well head (302) is connected with an output shaft of the gear motor (303) through a key.

8. A transplanter of a pit transplanter according to claim 7, wherein: the well head forming device is characterized in that a well pit chamfering head (305) coaxial with the well head forming device (302) is further arranged above the well head forming device (302), lugs (306) fixedly connected with the well head forming device (302) are arranged at the upper end of the well pit chamfering head (305), and a plurality of groups of mounting holes (307) which are respectively connected with the lugs (306) of the well pit chamfering head (305) and have different heights are formed in the well head forming device (302).

9. A transplanter of a pit transplanter according to claim 8, wherein: hopper shutter (7) include pedestal (701), left shutter (702) and right shutter (703), fixedly connected with left rocking arm (704) and right rocking arm (705) on left shutter (702) and right shutter (703) respectively, left rocking arm (704) and right rocking arm (705) are "X" form alternately setting, the upper end of left shutter (702) and right shutter (703) is fixed respectively in the lower extreme of left rocking arm (704) and right rocking arm (705), the crossing position of left rocking arm (704) or right rocking arm (705) is connected with pedestal (701) rotation through rotary pin (706).

10. A transplanter of a pit transplanter according to claim 9, wherein: the left rotary arm (704) or the right rotary arm (705) is connected with one end of a hopper opening and closing stay wire assembly (8), the other end of the hopper opening and closing stay wire assembly (8) is connected with one end of a cam follower disc (9), the middle part of the cam follower disc (9) is rotationally connected with a fixed support (10) above a reduction gearbox (5), a bearing at the other end of the cam follower disc (9) is in cam assembly pair with a hopper opening and closing cam (504) arranged on a hopper opening and closing control shaft (503) on the reduction gearbox (5), and a left shutter (702) and a right shutter (703) are connected through a reset spring (707).