CN107396659B

CN107396659B - Hole sowing seedling raising seeder

Info

Publication number: CN107396659B
Application number: CN201710752678.9A
Authority: CN
Inventors: 杨哲凡
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-08-29
Filing date: 2017-08-29
Publication date: 2023-03-31
Anticipated expiration: 2037-08-29
Also published as: CN107396659A

Abstract

The invention discloses a hole-sowing seedling-raising seeder, belonging to agricultural machinery; aims to provide a seeding machine which can be used in combination with a seedling raising bush chain and can also be used as a common seeding device. The seeding mechanism comprises a seeding mechanism and a vibration mechanism, wherein the seeding mechanism comprises a main shaft (13) supported on a rack (8), a seeding disc (5) and a first chain wheel (16) which are fixed on the main shaft, a plurality of seeding holes (22) which are uniformly distributed on the seeding disc (5), a plurality of clamping grooves (26) which are distributed along the edge of the seeding disc (5), a plurality of valve plates (25) which are respectively hinged on the back of the seeding disc (5), torsion springs (23) which are respectively fixed on pin shafts (27) and compress the valve plates, a material guide hopper (7) which is in butt joint with one of the seeding holes (22), and a stop pin (24) which is positioned near the material guide hopper. The invention has the advantages of simple structure, convenient operation, small volume, light weight, high efficiency, accurate sowing distance and the like; is a seeding machine.

Description

Hole sowing seedling raising seeder

Technical Field

The invention relates to a seeder, in particular to a hole sowing seedling raising seeder; belonging to agricultural machinery.

Background

With the rapid development of agricultural mechanized technology, rice transplanting machines are also becoming more popular. In order to facilitate the agricultural machinery to quickly and accurately take out seedlings and plant the seedlings, the seedlings are usually required to be raised through a seedling raising tray matched with a rice transplanter so as to ensure that the seedlings are arranged neatly and uniformly. In order to improve the sowing efficiency, a manual sowing machine (such as CN201320006281.2, CN201520179206.5, CN201120044843.3 and the like) matched with the seedling raising plate is generally adopted for sowing.

The applicant has proposed a rice transplanter with the application number of '201010267581.7' and the name of 'rice pot seedling blunderbuss transplanter'; in order to provide regular and uniform seedlings for the rice transplanter, the applicant also provides a seedling raising device with the application number of '201210144640.0' and the name of 'seedling raising bush chain'. Because the seedling raising device is a chain-shaped structure formed by a plurality of seedling raising sleeves in a hinged and serial connection mode, the existing seeding devices in various forms cannot be matched with the seedling raising device, and therefore, the hole seeding device which can be used together with the seedling raising device and can be used for directly seeding in the field is urgently needed to be developed.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a hole seeding machine which can be used together with a seeding bush chain and can also be used as a common seeding device in the field.

In order to achieve the purpose, the invention adopts the following technical scheme: the seeding mechanism comprises a main shaft vertically supported on the frame, a seeding disc and a first chain wheel fixed on the main shaft, a plurality of seeding holes uniformly distributed on the seeding disc by taking the main shaft as a center, a plurality of clamping grooves distributed along the edge of the seeding disc, a plurality of valve plates respectively hinged on the back of the seeding disc through pin shafts and sealing the corresponding seeding holes, torsional springs respectively fixed on the pin shafts and pressing the valve plates in the corresponding clamping grooves, a material guide hopper positioned below the seeding disc and corresponding to one seeding hole, and a stop pin positioned near the material guide hopper.

A seedling raising bush chain is arranged below the material guide hopper, and a driving chain wheel meshed with the seedling raising bush chain is fixed on the main shaft.

The lifting mechanism is driven by a transmission mechanism, and the transmission mechanism consists of a transmission shaft horizontally supported on the rack and a second chain wheel fixed on the transmission shaft; the lifting mechanism is composed of four third chain wheels which are supported on the frame through wheel shafts and distributed in a quadrilateral way, chains which are meshed with the third chain wheels to form a quadrilateral structure, a plurality of lifting hoppers which are hinged on the chains, baffles fixed on the lifting hoppers, collecting hoppers fixed below the seeding disks and a guide chute which is fixed above the seeding disks and communicated with the seeding disks; the transmission shaft is fixedly connected with one of the third chain wheels.

The shifting mechanism is composed of a rotating shaft vertically supported on the frame, a fourth chain wheel fixed on the rotating shaft, a shifting fork fixed on the rotating shaft and capable of being meshed with the second chain wheel, and a shifting block fixed on the rotating shaft and capable of being meshed with the first chain wheel.

The position corresponding to the seeding hole is provided with an elastic scraping blade, the upper end of the elastic scraping blade is fixed on the frame, and the lower end of the elastic scraping blade is kept in contact with the surface of the seeding disc.

Compared with the prior art, the invention has the following advantages due to the adoption of the technical scheme:

1) Because a shifting mechanism is adopted, a guide groove for guiding the movement of the seedling-raising bush chain can be arranged below the material guide hopper, and a driving chain wheel meshed with the seedling-raising bush chain is fixed at the lower end of the main shaft, the seedling-raising bush chain and the seeding tray move synchronously, and seeds can be ensured to accurately fall into the seedling-raising bushes of the corresponding seedling-raising bush chain; effectively avoiding the phenomena of multicast and miss-broadcast.

2) Because the vibration screening principle is utilized and the elastic scraping blade is arranged, only 1-2 seeds can fall into the seeding holes and enter the seedling raising sleeve through the material guide hopper each time; further avoiding the phenomena of multicast and miss-broadcast.

3) After the seedling raising bush chain is removed, the invention can be used as a common seeder to be directly used for seeding in the field; has the characteristic of one machine with multiple purposes.

The invention has the advantages of simple structure, convenient operation, small volume, light weight, high efficiency, accurate seeding distance and the like.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a left side view of the collecting hopper and the material guiding hopper of FIG. 1 removed;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a schematic structural view of the sowing tray of the present invention;

fig. 5 is a view of section a-a in fig. 4 rotated 90 ° clockwise.

In the figure: the seeding machine comprises a fourth chain wheel 1, a shifting fork 2, a second chain wheel 3, a rotating shaft 4, a seeding tray 5, a collecting hopper 6, a material guide hopper 7, a rack 8, a third chain wheel 9, a chain 10, a lifting hopper 11, a material guide chute 12, a main shaft 13, a support 14, a transmission shaft 15, a first chain wheel 16, a shifting block 17, an elastic scraping blade 18, a seedling raising sleeve chain 19 driving chain wheel 20, a baffle plate 21, a seeding hole 22, a torsion spring 23, a stop pin 24, a valve plate 25, a clamping groove 26 and a pin shaft 27.

Detailed Description

The invention is further described with reference to the following figures and specific examples.

As shown in fig. 1 to 5: the seeding mechanism is composed of a main shaft 13 vertically supported on a frame 8, a seeding disc 5 and a first chain wheel 16 fixed on the main shaft, a plurality of seeding holes 22 uniformly distributed on the seeding disc 5 by taking the main shaft 13 as the center, a plurality of clamping grooves 26 distributed along the edge of the seeding disc 5, a plurality of valve plates 25 respectively hinged on the back of the seeding disc 5 through pin shafts 27 and sealing the corresponding seeding holes 22, torsion springs 23 respectively fixed on the pin shafts 27 and pressing the valve plates in the corresponding clamping grooves 26, a material guide hopper 7 positioned below the seeding disc 5 and corresponding to one of the seeding holes 22, and a stop pin 24 positioned near the material guide hopper; the material guiding hopper 7 and the stop pin 24 are fixed on the frame 8, and the first chain wheel 16 is driven by an engine (not shown in the figure) fixed on the frame 8. A vibrating mechanism (not shown) driven by said motor is also fixed to the frame 8, with the purpose of making the seeds of the disc 5 fall into the holes 22.

In order to be suitable for being matched with a seedling raising device with the application number of "201210144640.0" and the name of "seedling raising bush chain", a guide groove (not shown in the figure) fixed on the frame 8 is arranged right below the material guide hopper 7, a driving chain wheel 20 is fixed on the main shaft 13, and the seedling raising bush chain 19 positioned in the guide groove is meshed with the driving chain wheel.

In order to avoid the waste of seeds caused by vibration and scattering, a lifting mechanism driven by a transmission mechanism is also arranged on the frame 8. The transmission mechanism consists of a transmission shaft 15 horizontally supported on the frame 8 and a second chain wheel 3 fixed on the transmission shaft; the transmission mechanism may be driven by the engine.

The lifting mechanism is composed of four third chain wheels 9 which are respectively supported on a frame 8 through wheel shafts (not shown in the figure) and distributed in a quadrilateral way, a chain 10 which is meshed with the third chain wheels 9 to form a quadrilateral structure, a plurality of lifting hoppers 11 which are hinged on the chain, a baffle 21 which is fixed at the bottom of each lifting hopper, a collecting hopper 6 which is positioned below the sowing disc 5 and fixed on the frame 8, and a guide chute 12 which is positioned above the sowing disc 5, fixed on the frame 8 and communicated with the sowing disc 5; the transmission shaft 15 is fixedly connected with one of the third chain wheels 9. When the baffle plate 21 touches the material guiding groove 12 in the process that the chain 10 drives the collecting hopper 6 to move upwards, the lifting hopper 11 can turn around a hinged shaft (not marked in the figure), so that the seeds of the lifting hopper 11 are guided into the sowing tray 5; the elevator bucket 11 then continues to move under the collecting bucket 6, driven by the chain 10, and the seeds in the collecting bucket again slide down into the elevator bucket 11. The seeds can be prevented from being scattered and wasted by the reciprocating circulation.

In order to control the beat among the mechanisms conveniently, ensure the seeding accuracy and ensure the lifting bucket 11 to be accurately butted with the collecting bucket 6, a shifting mechanism is arranged on the frame 8. The toggle mechanism is composed of a rotating shaft 4 vertically supported on a frame 8 through a support 14, a fourth chain wheel 1 fixed on the rotating shaft, a shifting fork 2 fixed on the rotating shaft 4 and capable of being meshed with a second chain wheel 3, and a shifting block 17 fixed on the rotating shaft and capable of being meshed with a first chain wheel 16. At this time, the motion of the present invention is driven by the engine through the fourth sprocket 1.

In order to ensure reliable sowing, there are elastic scrapers 18 fixed at the upper end to the frame 8 and at the lower end in contact with the surface of the sowing disc 5 at positions corresponding to the sowing holes 22. During the rotation of the sowing tray 5, the elastic scraping blade 18 can scrape off the excess seeds, thereby preventing the sowing holes 22 from being blocked by the accumulated seeds.

Claims

1. The utility model provides a hole sowing and seedling raising seeder, includes seeding mechanism and the vibration mechanism of installing in the frame, its characterized in that: the seeding mechanism comprises a main shaft (13) vertically supported on a rack (8), a seeding disc (5) and a first chain wheel (16) which are fixed on the main shaft, a plurality of seeding holes (22) which are uniformly distributed on the seeding disc (5) by taking the main shaft (13) as the center, a plurality of clamping grooves (26) which are distributed along the edge of the seeding disc (5), a plurality of valve plates (25) which are respectively hinged on the back of the seeding disc (5) through pin shafts (27) and seal the corresponding seeding holes (22), torsion springs (23) which are respectively fixed on the pin shafts (27) and press the valve plates in the corresponding clamping grooves (26), a material guide hopper (7) which is positioned below the seeding disc (5) and corresponds to one seeding hole (22) in position, and a stop pin (24) which is positioned near the material guide hopper;

still include the hoist mechanism through drive mechanism drive: the transmission mechanism consists of a transmission shaft (15) horizontally supported on the frame (8) and a second chain wheel (3) fixed on the transmission shaft;

the lifting mechanism is composed of four third chain wheels (9) which are supported on a frame (8) through wheel shafts and distributed in a quadrilateral way, chains (10) which are meshed with the third chain wheels (9) to form a quadrilateral structure, a plurality of lifting hoppers (11) which are hinged on the chains, baffles (21) fixed on the lifting hoppers, a collecting hopper (6) fixed below the sowing disc (5) and a material guide chute (12) fixed above the sowing disc (5) and communicated with the sowing disc; the transmission shaft (15) is fixedly connected with one of the third chain wheels (9).

2. The hole sowing seedling raising seeder according to claim 1, characterized in that: a seedling raising bush chain (19) is arranged below the material guide hopper (7), and a driving chain wheel (20) meshed with the seedling raising bush chain is fixed on the main shaft (13).

3. The hole-sowing seedling-raising seeder according to claim 1 or 2, characterized in that: the chain transmission mechanism further comprises a shifting mechanism, wherein the shifting mechanism is composed of a rotating shaft (4) vertically supported on the rack (8), a fourth chain wheel (1) fixed on the rotating shaft, a shifting fork (2) fixed on the rotating shaft (4) and capable of being meshed with the second chain wheel (3), and a shifting block (17) fixed on the rotating shaft and capable of being meshed with the first chain wheel (16).

4. The hole-sowing seedling-raising seeder according to claim 1 or 2, characterized in that: an elastic scraping blade (18) is arranged at the position corresponding to the sowing hole (22), the upper end of the elastic scraping blade is fixed on the upper end of the frame (8), and the lower end of the elastic scraping blade is kept in contact with the surface of the sowing disc (5).

5. The hole-sowing seedling-raising seeder according to claim 3, characterized in that: an elastic scraping blade (18) is arranged at the position corresponding to the sowing hole (22), the upper end of the elastic scraping blade is fixed on the upper end of the frame (8), and the lower end of the elastic scraping blade is kept in contact with the surface of the sowing disc (5).