CN110024534B

CN110024534B - Thunberg fritillary bulb seeder

Info

Publication number: CN110024534B
Application number: CN201910323387.7A
Authority: CN
Inventors: 李中凯; 王欣欣; 苗磊; 李等卓
Original assignee: China University of Mining and Technology CUMT
Current assignee: China University of Mining and Technology CUMT
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2021-03-30
Anticipated expiration: 2039-04-22
Also published as: CN110024534A

Abstract

The invention discloses a fritillaria thunbergii seeder which comprises a dibbler, a seeding disc, a rotary material conveying mechanism, a seed pressing mechanism, a sliding material conveying mechanism, a ditching mechanism, a soil collecting mechanism, a power mechanism, a transmission mechanism and a rack. The thunberg fritillary bulb seeds sequentially pass through the sliding material conveying mechanism and the rotating material conveying mechanism, and the process from the sliding material conveying mechanism to the rotating material conveying mechanism is completed when the dibbler is in butt joint with the short slide rail. When the rotary material conveying mechanism reaches the lowest end, the seed pressing mechanism presses the fritillaria thunbergii seeds into the soil. The ditching mechanism is used for ditching a flat-bottom straight ditch, and the soil collecting mechanism is used for adjustable soil covering. The invention has reasonable structure and reliable operation action, and improves the seeding efficiency.

Description

Thunberg fritillary bulb seeder

Technical Field

The invention relates to a seeder, in particular to a fritillaria thunbergii seeder for seeding fritillaria thunbergii, belonging to the field of agricultural machinery.

Background

Thunberg fritillary bulb is a perennial herb of liliaceae, is mainly distributed in Zhejiang, is a traditional 'eight-ingredient' herbal traditional Chinese medicine material, has the effects of clearing heat, reducing phlegm, dispersing mass, detoxifying and the like, has high market value, and the demand is increased year by year. As is known, the planting time is only about two weeks, and the planting method is still a pure manual planting method, the time is tight, the task amount is large, and a large amount of rural labor force is occupied.

Before the thunberg fritillary bulb is planted, transverse grooves are arranged on the furrow according to the row spacing of 20 cm, the depth of each groove is 10-12 cm, the grooves are straight, the bottom of each groove is flat, and 6 fritillary bulbs are planted in each row. The standard diameter of the bulb of the thunberg fritillary bulb seeds is 3-5 cm, the selected high-quality seeds are flat, and the seeds of the thunberg fritillary bulb need to be upward when planted in order to improve the germination rate of the seeds and obtain high-quality and plump thunberg fritillary bulbs. At present, no seeder for sowing thunberg fritillary bulb exists, and because the seeds of the thunberg fritillary bulb are relatively large and need to be planted with buds facing upwards, the traditional seeder is not suitable for sowing the thunberg fritillary bulb.

Disclosure of Invention

The invention aims to make up for the blank of the prior art, improve the planting efficiency of the thunberg fritillary bulb, reduce labor force, overcome the difficulty that seeds of the thunberg fritillary bulb are large and need to be upward during planting, and design the seeder for the thunberg fritillary bulb.

In order to achieve the purpose, the invention adopts the technical scheme that:

a fritillaria thunbergii seeder comprises a plurality of dibblers, a seeding disc, a rotary material conveying mechanism, a seed pressing mechanism, a plurality of sliding material conveying mechanisms, a ditching mechanism, a soil collecting mechanism, a power transmission mechanism and a rack.

The hill planter comprises a right movable plate of the hill planter, a left movable plate of the hill planter, a right L-shaped plate and a left L-shaped plate; the right movable plate and the left movable plate of the hill planter are symmetrical in shape and are buckled (closed) together to form a sharp-bottom hopper shape; the top parts of the right movable plate and the left movable plate of the hill planter are respectively hinged to the top ends of the right L-shaped plate and the left L-shaped plate, and the right L-shaped plate and the left L-shaped plate are fixed on the bottom plate of the sowing tray; the right movable plate and the left movable plate of the hill planter are respectively provided with a return spring, one end of each return spring is respectively connected with the left movable plate and the right movable plate of the hill planter, and the other end of each return spring is respectively fixed on the left L-shaped plate and the right L-shaped plate; under the action of the reset spring, the left plate and the right plate of the hill planter are in a closed state, when the push rod pushes seeds into the ground, the two plates return to the closed state under the action of the reset spring, and one sides of the left plate and the right plate of the hill planter are made into an arc shape so that the seeds can slide in conveniently.

The seeding disc comprises a right shaft end of the seeding disc, a left shaft end of the seeding disc and a bottom plate of the seeding disc, the right shaft end of the seeding disc is fixed in the middle of a short rod of the parallelogram link mechanism, and the left shaft end of the seeding disc is rotationally connected with the cylindrical roller through a deep groove ball bearing; each dibbler is continuously arranged on the bottom plate of the sowing tray.

The rotary material conveying mechanism comprises a parallelogram link mechanism, a cylindrical roller and a large disc; the parallelogram link mechanism is formed by hinging two short rods and two long rods; the surface of the large disc is provided with a large disc sliding rail, and the cylindrical roller is arranged in the large disc sliding rail and rolls in the large disc sliding rail; the large disc and the parallelogram link mechanism are respectively fixed on the frame; one end of a long rod of the parallelogram connecting rod mechanism, which is far away from the right shaft end of the seeding disc, is connected with a gear through a long rod power shaft, the long rod power shaft is perpendicular to the plane where the parallelogram connecting rod mechanism is located and is positioned on a hinged joint of the long rod and a short rod, the gear is meshed with an incomplete gear, the incomplete gear is coaxially assembled with a gear power chain wheel, the seeding disc is driven by the short rod of the parallelogram connecting rod mechanism, the running track of the seeding disc is circular, and the seeding disc can be always in a state that the opening of the dibbler is upward in the rotating process by utilizing the characteristic that a parallelogram connecting rod and a frame always keep parallel, so that the stability of seeds in the operation process of the material conveying.

The pressing mechanism comprises a small disc, a rotating rod, a vertical moving shaft, a cylindrical guide rail, a small disc power shaft, a bearing with a vertical seat, a push rod power chain wheel and a cylindrical guide rail support frame, wherein the rotation of the small disc is provided by the push rod power chain wheel through the small disc power shaft; an extension shaft is arranged at the edge of the end face of the small disc (the extension shaft is not positioned at the rotating axis of the small disc), one end of the rotating rod is sleeved on the extension shaft of the small disc, the other end of the rotating rod is hinged with the top end of a vertical moving shaft, the vertical moving shaft penetrates through a cylindrical guide rail, and the cylindrical guide rail is fixed on the rack through a cylindrical guide rail support frame; a plurality of push rods are fixed at the bottom end of the vertical moving shaft, the number of the push rods is the same as that of the dibblers, and push rod heads are installed on the push rods; each push rod head is respectively matched with the position of each dibbler; the bottom end face (the face in contact with the seeds) of the push rod head is wrapped by the rubber pad, so that the push rod head is prevented from damaging the seeds when contacting the seeds, the push rod head is made into a concave shape, the seeds can be wrapped, the friction between the seeds and the movable plate of the dibbler is reduced, and the seeds can be prevented from deflecting.

The sliding material conveying mechanism comprises a long slide rail, a short slide rail and a partition roller; four notches are uniformly formed in the peripheral direction of the partition roller, and each notch can just slide in one seed; the long slide rail and the short slide rail are respectively arranged at two sides of the partition roller, the lower port of the long slide rail is tightly attached to the roller surface above the partition roller, and the short slide rail is tightly attached to the roller surface below the partition roller; the number of the sliding material conveying mechanisms is the same as that of the dibblers, and the lower ends of the short slide rails of the sliding material conveying mechanisms respectively correspond to the upper openings of the corresponding dibblers. The seeds of thunberg fritillary bulb sequentially flow through the long slide rail, the partition roller and the short slide rail, the short slide rail is in butt joint with the dibbler, and the seeds of thunberg fritillary bulb continuously flow into the dibbler through the short slide rail, so that the butt joint of the sliding conveying mechanism and the rotating conveying mechanism is completed. The top surfaces of the long slide rails are transversely provided with a plurality of slide rail partition plates at equal intervals (in the direction vertical to the length direction of the long slide rails), neutrons of the thunberg fritillary bulbs slide below the partition plates to prevent a plurality of thunberg fritillary bulbs from extruding from the slide rails, and the long slide rails are fixed on the rack through long slide rail support frames. Each gap of the partition roller can just slide into one seed, the seeds can be separated through the rotation of the roller, and one row of seeds is conveyed every time the roller rotates by 90 degrees. The partition rollers of the sliding material conveying mechanisms are arranged on the same roller shaft, the roller shaft is fixed on the rack through a bearing with a vertical seat, and roller power chain wheels are arranged at two ends of the roller shaft. The short slide rail is fixed on the frame through a short slide rail support frame.

The ditching mechanism is located dibbler the place ahead, including ditching piece support, and ditching piece support is fixed in the frame, sets up a plurality of ditching pieces on the ditching piece support. The number of the ditching pieces is equal to that of the dibblers and is positioned right in front of the corresponding dibblers.

The lower edge of the ditching blade is straight, the projection in the advancing direction is rectangular, and a straight ditch and a flat bottom can be ditched.

The soil collecting mechanism comprises a soil collecting plate supporting frame which is arranged at the rearmost part of the frame, and a cross beam is arranged at the lower end part of the soil collecting plate supporting frame. And the soil collecting plate support frame is provided with a plurality of pairs of soil collecting plates. The soil collecting plate is characterized in that a vertical edge of the soil collecting plate is provided with a soil collecting plate rotating shaft, the back of the soil collecting plate is provided with a spring support frame, a force unloading spring is arranged between the back of the soil collecting plate and the spring support frame, and the soil collecting plate is rotatably connected with the soil collecting plate rotating shaft. The rotating shaft and the spring support frame are both fixed on the cross beam of the soil collecting plate support frame. Each dibbler corresponds to a pair of soil collecting plates, and each pair of soil collecting plates are positioned at the left side and the right side of the travelling route behind the corresponding dibbler and form a splayed included angle backwards according to a set included angle. When the soil amount is too large, the force-discharging spring is compressed, so that the opening of the soil-collecting plate is enlarged, the resistance is favorably reduced, and when the soil amount is too small, the spring extends, so that the opening of the soil-collecting plate is reduced, and the thunberg fritillary bulb seeds are favorably covered with the soil in a more concentrated manner.

The power mechanism respectively provides power for a gear power chain wheel of an incomplete gear of the parallelogram link mechanism, a roller power chain wheel of a roller shaft and a push rod power chain wheel through the power transmission mechanism.

The power mechanism comprises a worm gear reducer and a driving shaft, the worm gear reducer is fixed on the rack, an output shaft is connected with the driving shaft, and the driving shaft is provided with a driving chain wheel.

The power transmission mechanism comprises a driven chain wheel I, a driven chain wheel II, a driven chain wheel III and an intermediate transmission shaft. The first driven chain wheel, the second driven chain wheel and the third driven chain wheel are fixedly mounted on the middle transmission shaft, the number of the second driven chain wheels and the number of the third driven chain wheels are two, and the two driven chain wheels are symmetrically mounted on the middle transmission shaft. The driving chain wheel is connected with the first driven chain wheel through a chain, and the two second driven chain wheels are respectively connected with the roller power chain wheel through chains. One driven chain wheel and three chains are connected with a gear power chain wheel, and the other driven chain wheel and three chains are connected with a push rod power chain wheel.

The middle part of the reciprocating stroke of each chain is provided with a guide wheel bracket, a forward guide wheel and a return guide wheel are arranged on a guide wheel frame, and the forward guide wheel and the return guide wheel are respectively meshed with the forward chain and the return chain of the chain. The guide wheel not only plays the role of tensioning the chain, but also avoids collision with the rotary conveying mechanism.

The incomplete gear is provided with two missing teeth in one circle, one is used for the intermittence that the fritillary bulb seeds slide into the dibbler through the short slide rail, and the other is used for the intermittence that the push rod of the seed pressing mechanism pushes the fritillary bulb seeds when the seeding tray is positioned at the lowest end; the number of teeth of the incomplete gear is the same as that of the teeth of the gear, the number of teeth of the gear power chain wheel is the same as that of the teeth of the push rod power chain wheel and the number of teeth of the driven chain wheel are the same as that of the teeth of the roller power chain wheel, the ratio of the number of teeth of the driven chain wheel II to that of the roller power chain wheel is 1:4, when the rotary material conveying mechanism rotates for one circle, the push rod mechanism completes one cycle, and the roller rotates for one quarter.

Compared with the prior art, the invention has the following beneficial effects:

the invention adopts the parallelogram link mechanism to transport the fritillaria thunbergii seeds, and utilizes the characteristic that the parallelogram link mechanism and the rack are always kept horizontal, so that the seeding tray is always in a state that the opening of the dibbler is upward in the rotating process, thereby ensuring the stability of the fritillaria thunbergii seeds when the seeds are operated along with the rotating material transporting mechanism.

The contact surface of the push rod head and the seeds is concave, so that the seeds of the thunberg fritillary bulb can be prevented from deflecting during seed pressing.

Adopts the partition roller, not only the direction is adjusted, but also the intermittent transmission of the fritillaria thunbergii seeds is ensured.

The incomplete gear is adopted, so that the sliding material conveying mechanism and the rotating material conveying mechanism can transfer the fritillaria thunbergii seeds in a relatively static state, and the seed pressing mechanism can press the seeds when the seeding disc is in a static state, thereby increasing the reliability of the mechanism.

The soil collecting plate is connected with the force unloading spring, the force unloading spring is compressed when the soil amount is too large, so that the opening of the soil collecting plate is enlarged, the resistance is favorably reduced, the spring extends when the soil amount is too small, the opening of the soil collecting plate is reduced, and the thunberg fritillary bulb seeds are favorably covered with more concentrated soil.

The pressing mechanism is arranged in the running track of the sliding material conveying mechanism, so that the space is saved.

Drawings

Fig. 1 is a schematic view of a hill planter.

Fig. 2 is a schematic view of a left plate mechanism of the hill planter.

Fig. 3 shows a schematic view of a sowing tray.

Fig. 4 is a partially enlarged view a in fig. 3.

Fig. 5 is a schematic view of a rotary material conveying mechanism.

Fig. 6 is a partially enlarged view B in fig. 5.

FIG. 7 is a schematic view of a press mechanism.

Fig. 8 is a partially enlarged view of fig. 7.

Figure 9 is a left perspective view of the slide material handling mechanism.

Figure 10 is an isometric view of a slide material handling mechanism.

FIG. 11 is a schematic view of a furrowing mechanism.

FIG. 12 is a schematic view of a soil collection mechanism.

FIG. 13 is a partial schematic view of the soil collection mechanism.

Fig. 14 is a schematic view of a power mechanism.

FIGS. 15 to 17 are partial schematic views of the transfer mechanism.

FIG. 18 is a left perspective view of the fritillary bulb seeding machine of the present invention.

FIG. 19 is a perspective view of a seeder for fritillary bulb.

FIG. 20 is a top view of the fritillary bulb seeding machine of the present invention.

Wherein, 1-a right movable plate of the hill planter; 2-a left movable plate of the hill planter; 3-L-shaped plates; 4, rotating the fixed block by the movable plate; 5-a return spring; 6-the right shaft end of the sowing plate; 7-sowing the left axle end of the plate; 8-sowing tray bottom plate; 9-a parallelogram long rod; 10-parallelogram short bars; 11-a cylindrical roller; 12-large disc slide rail; 13-small disc; 14-rotating rods; 15-vertical axis of motion; 16-a cylindrical guide rail; 17-a push rod; 18-a putter head; 19-small disk power shaft; 20-bearing with vertical seat; 21-a push rod power sprocket; 22-cylindrical guide rail support frame; 23-long slide rail; 24-a separating roller; 25-short slide rail; 26-a drum power sprocket; 27-a slide rail spacer; 28-short slide rail support; 29-long slide rail support; 30-ditching piece; 31-a ditching sheet bracket; 32-a soil collecting plate rotating shaft; 33-a spring support; 34-a soil collecting plate; 35-a force-relief spring; 36-a soil collection plate support frame; 37-worm gear reducer; 38-input shaft diaphragm coupling; 39-output shaft diaphragm coupling; 40-driving shaft; 41-a drive sprocket; 42-a driven sprocket I; 43-driven sprocket II; 44-driven sprocket III; 45-intermediate drive shaft; 46-a guide wheel; 47-a guide wheel shaft; 48-deep groove ball bearing; 49-idler holder; 50-a geared power sprocket; 51-toothed chain connecting shaft; 52-incomplete gear; 53-gear; 54-long rod power shaft; 55-connecting rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example (b):

a Fritillaria thunbergii seeding machine is shown in figures 18, 19 and 20 and comprises six dibblers, a seeding disc, a rotating material conveying mechanism, a seed pressing mechanism, six sliding material conveying mechanisms, a ditching mechanism, a soil collecting mechanism, a power mechanism, a transmission mechanism and a rack.

As shown in fig. 1, the hill planter comprises a right movable plate 1 of the hill planter, a left movable plate 2 of the hill planter, a right L-shaped plate and a left L-shaped plate 3; the right movable plate and the left movable plate of the hill planter are symmetrical in shape and are buckled (closed) together to form a sharp-bottom hopper shape. The top parts of the right L-shaped plate and the left L-shaped plate are respectively fixed with a movable plate rotating fixed block 4, the movable plate rotating fixed blocks 4 are respectively hinged with the right movable plate of the hill planter and the top end of the left movable plate of the hill planter through hinges, and the right L-shaped plate and the left L-shaped plate L are fixed on the bottom plate of the seeding tray; the right movable plate and the left movable plate of the hill planter are respectively provided with a return spring 5, one end of each return spring is respectively connected with the left movable plate and the right movable plate of the hill planter, and the other end of each return spring is respectively fixed on the left L-shaped plate and the right L-shaped plate. Under the action of the reset spring, the left plate and the right plate of the hill planter are in a closed state, when the push rod pushes seeds into the ground, the two plates return to the closed state under the action of the reset spring, and one sides of the left plate and the right plate of the hill planter are made into an arc shape so that the seeds can slide in conveniently.

FIG. 2 shows the three-dimensional structure of the left movable plate of the dibbler, one side of which is designed as a slide rail to facilitate the sliding of the seeds of the fritillary bulb.

Fig. 3 shows a seeding plate, which comprises a right shaft end 6 of the seeding plate, a left shaft end 7 of the seeding plate and a bottom plate 8 of the seeding plate, wherein the right shaft end 6 of the seeding plate is fixed in the middle of a parallelogram short rod 10, and the left shaft end 7 of the seeding plate is rotationally connected with a cylindrical roller 11 through a deep groove ball bearing (as shown in fig. 5 and 6). The six dibblers are arranged on the bottom plate of the seeding tray at equal intervals, and as shown in figure 4, the dibblers are fixed on the bottom plate 8 of the seeding tray through a left L-shaped plate and a right L-shaped plate.

As shown in fig. 5, the rotating material conveying mechanism comprises a long parallelogram rod 9, a short parallelogram rod 10, a cylindrical roller 11 and a large disc slide rail 12, as shown in fig. 6, the cylindrical roller 11 rolls in the large disc track, the seeding disc performs circular motion under the driving of the short parallelogram rod 10 of the connecting rod mechanism, the seeding position is a radial inoculation position and a seeding position in a rotation period, the inoculation position is the butt joint position of the dibbler and the short slide rail 25, and the seeding position is the lowest point reached by the seeding disc.

As shown in fig. 7, the seed pressing mechanism includes a small disc 13, a rotating rod 14, a vertical moving shaft 15, a cylindrical guide rail 16, a push rod 17, a push rod head 18, a small disc power shaft 19, a bearing with a vertical seat 20, a push rod power sprocket 21, and a cylindrical guide rail support frame 22.

Under the drive of the push rod power chain wheel 21, the small circular disc power shaft 19 drives the small circular disc to rotate, as shown in fig. 8, the end face of the small circular disc is provided with an extending shaft, one end of the rotating rod 14 is sleeved on the extending shaft, the other end of the rotating rod is rotatably connected with the vertical moving shaft 15, six push rods 17 are connected below the vertical moving shaft 15, push rod heads are installed on the push rods, when the small circular disc 13 rotates, the rotating rod drives the vertical moving shaft to move up and down in the cylindrical guide rail, and when the small circular disc rotates for one circle, the push rods move back and forth up and down once to complete one seed pressing action.

The push rod head wraps up the one side of seed contact one deck rubber pad, damages the seed when preventing push rod head and seed contact, and its shape is made concave type, can wrap up the seed, not only reduces the friction of seed and dibbler movable plate, can also prevent that the seed from taking place the incline.

As shown in fig. 9 and 10, the sliding material conveying mechanism includes a long slide rail 23, a partition roller 24, a short slide rail 25, a roller power sprocket 26, a slide rail partition plate 27, a short slide rail support frame 28, and a long slide rail support frame 29. The long slide rail 23 and the short slide rail 25 are respectively arranged at two sides of the partition roller 25, the lower port of the long slide rail 23 is tightly attached to the lateral upper roller surface (with a set gap) of the partition roller 25, and the short slide rail is tightly attached to the lateral lower roller surface (with a set gap). Six long slide rails 23, six partition rollers 24 and six short slide rails 25 form six seed conveying channels, and the lower ends of the short slide rails of the sliding material conveying mechanisms respectively correspond to the upper openings of the corresponding dibblers. Gaps (grooves) are dug at intervals of 90 degrees along the circumferential direction of the partition roller, thunberg fritillary bulb seeds are placed into the long slide rails 23 with buds facing downwards and slide into one groove of the partition roller 24 through the long slide rails 23, the thunberg fritillary bulb seeds entering the grooves are isolated in the long slide rails 23 before rotating to the next groove, the thunberg fritillary bulb seeds entering the grooves are driven by the isolation rollers 24 to rotate for 180 degrees, the buds of the thunberg fritillary bulb seeds face upwards, the thunberg fritillary bulb seeds slide into the short slide rails 25 under the driving of rotation inertia and self gravity, at the moment, the incomplete gear 52 and the gear 53 are just positioned at the first intermittent position, namely, the rotary material conveying mechanism drives the seeding disc to rotate to the position where the hill planter is in butt joint with the short slide rails 25, the thunberg bulbs slide into the hill planter, and the transfer.

As shown in fig. 11, the ditching mechanism comprises ditching pieces 30 and ditching piece brackets 31, wherein the number of the ditching pieces 30 is six, the lower edges of the ditching pieces are straight, the projection in the advancing direction is rectangular, and a straight ditch can be ditched and is flat. The ditching pieces are positioned right in front of the corresponding hill-drop planters.

As shown in fig. 12 and 13, the soil collecting mechanism includes a soil collecting plate support frame 36, the soil collecting plate support frame 36 is disposed at the rearmost part of the frame, and a cross beam is disposed at the lower end part. And six pairs of soil collecting plates 34 are arranged on the soil collecting plate supporting frame. One vertical edge of the soil collecting plate 34 is provided with a soil collecting plate rotating shaft 32, the back surface of the soil collecting plate is provided with a spring support frame 33, a force unloading spring 35 is arranged between the back surface of the soil collecting plate and the spring support frame, and the soil collecting plate 34 is rotatably connected with the soil collecting plate rotating shaft 32. The rotating shaft 32 and the spring support bracket 33 are both fixed on the cross beam of the soil collector support bracket 36. Each dibbler corresponds to a pair of soil collecting plates, and each pair of soil collecting plates are positioned at the left side and the right side of the travelling route behind the corresponding dibbler and form a splayed included angle backwards according to a set included angle. When the soil amount is too large, the force-discharging spring is compressed, so that the opening of the soil-collecting plate is enlarged, the resistance is favorably reduced, and when the soil amount is too small, the spring extends, so that the opening of the soil-collecting plate is reduced, and the thunberg fritillary bulb seeds are favorably covered with the soil in a more concentrated manner.

As shown in fig. 14, the power mechanism includes a worm gear reducer 37, an input shaft diaphragm coupling 38, an output shaft diaphragm coupling 39, a driving shaft 40, and a driving sprocket 41, the power of the seeding machine is provided by the small tractor, the input shaft of the worm gear reducer 37 is connected with the power shaft of the small tractor through the input shaft diaphragm coupling, the worm gear reducer 37 is connected with the driving shaft through the output shaft diaphragm coupling 39, and the driving sprocket is fixed on the driving shaft through a key, so as to transmit the power to the driving sprocket 41.

Fig. 15 to 17 are enlarged views of parts of the transmission mechanism, which includes a first driven sprocket 42, a second driven sprocket 43, a third driven sprocket 44, and an intermediate transmission shaft 45. The first driven chain wheel 42, the second driven chain wheel 43 and the third driven chain wheel 44 are fixedly arranged on the middle transmission shaft through keys. Two driven chain wheels 43 and two driven chain wheels 44 are arranged on the middle transmission shaft in a left-right symmetrical mode by taking the central point of the middle transmission shaft as a boundary. The chain wheels are connected in a chain mode (power transmission mode), the driving chain wheel 41 is connected with the first driven chain wheel 42, and the two second driven chain wheels 43 are respectively connected with the roller power chain wheels 26 at two ends of the partition roller 24. Of the two driven sprockets three 44, one is connected with the gear power sprocket 50, and the other is connected with the push rod power sprocket 21. Two missing teeth are arranged on the periphery of the incomplete gear 52, one is used for the intermittence that the fritillary bulb seeds slide into the dibbler through the short slide rail, and the other is used for the intermittence that the push rod of the seed pressing mechanism pushes the fritillary bulb seeds when the sowing tray is positioned at the lowest end. The number of teeth of the incomplete gear 52 is the same as that of the gear 53, the number of teeth of the gear power chain wheel 50 is the same as that of the push rod power chain wheel 21, the number of teeth of the driven chain wheel 44 is the same, the ratio of the number of teeth of the driven chain wheel II 43 to that of the roller power chain wheel 26 is 1:4, when the rotary material conveying mechanism rotates for one circle, the push rod mechanism completes one cycle, the roller 24 is isolated from rotating for one quarter of a circle, and the coordination and matching of the mechanisms in one cycle are met.

The middle part of the reciprocating stroke of each chain is provided with a guide wheel bracket 49, the guide wheel bracket is provided with a forward guide wheel 36 and a return guide wheel 36, the guide wheel 46 is rotationally connected with a guide wheel shaft 47 through a deep groove ball bearing 48, and the guide wheel shaft 47 is fixed on the frame through the guide wheel bracket 49. The two guide wheels are arranged up and down, and the forward guide wheel and the return guide wheel are respectively meshed with the forward chain and the return chain of the chain. The guide wheel not only plays the role of tensioning the chain, but also avoids collision with the rotary conveying mechanism.

Claims

1. A Thunberg fritillary bulb seeder comprises a plurality of dibblers, a seeding disc, a rotary material conveying mechanism, a seed pressing mechanism, a plurality of sliding material conveying mechanisms, a ditching mechanism, a soil collecting mechanism, a power transmission mechanism and a rack; the method is characterized in that:

the hill planter comprises a right hill planter moving plate (1), a left hill planter moving plate (2), a right L-shaped plate and a left L-shaped plate (3); the right movable plate (1) of the hill planter and the left movable plate (2) of the hill planter are symmetrical in shape and are buckled together to form a sharp bottom hopper shape; the tops of the right hill planter movable plate (1) and the left hill planter movable plate (2) are respectively hinged to the top ends of the right L-shaped plate and the left L-shaped plate; the right L-shaped plate and the left L-shaped plate are fixed on a bottom plate (8) of the sowing tray; the right movable plate and the left movable plate of the hill planter are respectively provided with a return spring (5), one end of one return spring is connected with the left movable plate of the hill planter, the other end of the one return spring is fixed on the left L-shaped plate, one end of the other return spring is connected with the right movable plate of the hill planter, and the other end of the other return spring is fixed on the right L-shaped plate;

the seeding disc comprises a right shaft end (6) of the seeding disc, a left shaft end (7) of the seeding disc and a bottom plate (8) of the seeding disc, the right shaft end (6) of the seeding disc is fixed in the middle of a short rod (10) of the parallelogram link mechanism, and the left shaft end (7) of the seeding disc is rotatably connected with a cylindrical roller (11); each dibbler is continuously arranged on the bottom plate of the sowing tray;

the rotary material conveying mechanism comprises a parallelogram link mechanism, a cylindrical roller (11) and a large disc; the parallelogram link mechanism is formed by hinging two short rods (10) and two long rods (9) with each other; a large disc sliding rail (12) is arranged on the surface of the large disc, and the cylindrical roller (11) is arranged in the large disc sliding rail (12) and rolls in the large disc sliding rail (12); the large disc and the parallelogram link mechanism are respectively fixed on the frame; one end of a long rod (9) of the parallelogram link mechanism, which is far away from the right shaft end of the seeding plate, is connected with a gear (53) through a long rod power shaft (54), the gear (53) is meshed with an incomplete gear (52), and the incomplete gear (52) is coaxially assembled with a gear power chain wheel (50);

the seed pressing mechanism comprises a small disc (13), a rotating rod (14), a vertical moving shaft (15), a cylindrical guide rail (16), a cylindrical guide rail support frame (22), a small disc power shaft (19) and a push rod power chain wheel (21); the small disc (13) is arranged at one end of a small disc power shaft (19), the push rod power chain wheel (21) is arranged at the other end of the small disc power shaft (19), the small disc power shaft (19) is supported by two bearings (20) with vertical seats, one bearing (20) with a vertical seat is fixed on a cylindrical guide rail support frame (22), and the other bearing is fixed on the large disc; an extending shaft is arranged at the edge of the end face of the small disc, one end of the rotating rod (14) is sleeved on the extending shaft of the small disc (13), and the other end of the rotating rod is hinged with the top end of the vertical moving shaft (15); a vertical motion shaft (15) penetrates through the cylindrical guide rail (16), and the cylindrical guide rail (16) is fixed on the rack through a cylindrical guide rail support frame (22); a plurality of push rods (17) are fixed at the bottom end of the vertical moving shaft (15), the number of the push rods is the same as that of the dibblers, and each push rod is provided with a push rod head (18); each push rod head (18) is respectively matched with the position of each dibbler;

the sliding material conveying mechanism comprises a long slide rail (23), a short slide rail (25) and a partition roller (24); four notches are uniformly formed in the peripheral direction of the partition roller (24), and each notch can just slide in one seed; the lower port of the long slide rail (23) is tightly attached to the lateral upper roller surface of the partition roller (24), and the short slide rail (25) is tightly attached to the lateral lower roller surface of the partition roller (24); the number of the sliding material conveying mechanisms is the same as that of the dibblers, and the lower ends of the short slide rails of the sliding material conveying mechanisms respectively correspond to the upper openings of the corresponding dibblers;

the partition rollers (24) of each sliding material conveying mechanism are arranged on the same roller shaft, the roller shaft is fixed on the rack through a bearing with a vertical seat, and two ends of the roller shaft are provided with roller power chain wheels;

the ditching mechanism is positioned in front of the dibbler and comprises a ditching sheet bracket (31), the ditching sheet bracket is fixed on the rack, and a plurality of ditching sheets (30) are arranged on the ditching sheet bracket; the number of the ditching pieces is equal to that of the dibblers and is positioned right in front of the corresponding dibblers;

the soil collecting mechanism comprises a soil collecting plate support frame (36), the soil collecting plate support frame (36) is arranged at the rearmost part of the rack, and a cross beam is arranged at the lower end part of the soil collecting plate support frame; the soil collecting plate supporting frame is provided with a plurality of pairs of soil collecting plates (34); a soil collecting plate rotating shaft (32) is arranged on one vertical edge of the soil collecting plate (34), a spring support frame (33) is arranged on the back surface of the soil collecting plate, a force unloading spring (35) is arranged between the back surface of the soil collecting plate and the spring support frame, and the soil collecting plate (34) is rotatably connected with the soil collecting plate rotating shaft (32); the rotating shaft (32) and the spring support frame (33) are both fixed on a cross beam of the soil collecting plate support frame (36); each dibbler corresponds to a pair of soil collecting plates, and each pair of soil collecting plates are positioned at the left side and the right side of the travelling route behind the corresponding dibbler and form a splayed included angle backwards according to a set included angle;

the power mechanism respectively provides power for a gear power chain wheel (50) of an incomplete gear of the parallelogram link mechanism, a roller power chain wheel (26) of a roller shaft and a push rod power chain wheel (21) through the power transmission mechanism.

2. The fritillary bulb seeder of claim 1, wherein:

the power mechanism comprises a worm and gear reducer (37) and a driving shaft (40), wherein the output shaft of the worm and gear reducer (37) is connected with the driving shaft (40), and the driving shaft is provided with a driving chain wheel (41);

the power transmission mechanism comprises a first driven chain wheel (42), a second driven chain wheel (43), a third driven chain wheel (44) and an intermediate transmission shaft (45); the two driven chain wheels I (42), the two driven chain wheels II (43) and the two driven chain wheels III (44) are fixedly arranged on the middle transmission shaft (45), and the two driven chain wheels II (43) and the two driven chain wheels III (44) are symmetrically arranged on the middle transmission shaft (45) in a left-right mode;

the driving chain wheel (41) is connected with a first driven chain wheel (42) in a chain mode, and two second driven chain wheels (43) are respectively connected with a roller power chain wheel (26) in a chain mode; one driven chain wheel III (44) is connected with the gear power chain wheel (50) in a chain mode, and the other driven chain wheel III (44) is connected with the push rod power chain wheel (21) in a chain mode.

3. The fritillary bulb seeder of claim 1, wherein: the incomplete gear (52) has two missing teeth around the circumference, one is used for the intermittence that the fritillary bulb seeds slide into the dibbler through the short slide rail, and the other is used for the intermittence that the push rod of the seed pressing mechanism pushes the fritillary bulb seeds when the sowing tray is positioned at the lowest end; the tooth number of the incomplete gear (52) is the same as that of the gear (53), the tooth number of the gear power chain wheel (50), the tooth number of the push rod power chain wheel (21) is the same as that of the driven chain wheel (44), and the tooth number ratio of the driven chain wheel II (43) to the roller power chain wheel (26) is 1: 4.

4. The fritillary bulb seeder of claim 1, wherein: the bottom end face of the push rod head is wrapped with a rubber pad, and the shape of the bottom end face of the push rod head is made into a concave shape.

5. The fritillary bulb seeder of claim 1, wherein: a guide wheel bracket (49) is arranged in the middle of the reciprocating stroke of each chain, a forward guide wheel and a return guide wheel (47) are arranged on the guide wheel bracket, and the forward guide wheel and the return guide wheel are respectively meshed with the forward chain and the return chain of the chain.

6. The fritillary bulb seeder of claim 1, wherein: and a plurality of sliding rail partition plates (27) are transversely arranged on the top surface of the long sliding rail (23) at equal intervals.

7. The fritillary bulb seeder of claim 1, wherein: the ditching sheet (30) is rectangular.