CN111587641B

CN111587641B - Vegetable seeder

Info

Publication number: CN111587641B
Application number: CN202010295620.8A
Authority: CN
Inventors: 曾山; 文智强; 姚腊梅; 黄登攀; 刘伟健; 王绪国; 何思禹
Original assignee: South China Agricultural University
Current assignee: South China Agricultural University
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2021-11-26
Anticipated expiration: 2040-04-15
Also published as: CN111587641A

Abstract

The invention discloses a vegetable seeder, which comprises at least one seeding device, wherein the seeding device comprises a seed metering unit, a furrow opener unit, a power transmission unit and a row spacing adjusting unit, the seed metering unit is positioned above the furrow opener unit, the seed metering unit is connected with the furrow opener unit through the power transmission unit, the row spacing adjusting unit is connected with the seed metering unit, and the function that the row spacing can be adjusted while the hole spacing is variable during vegetable seeding is realized through mutual matching among the seed metering unit, the furrow opener unit, the power transmission unit and the row spacing adjusting unit.

Description

Vegetable seeder

Technical Field

The invention relates to the technical field of agricultural machinery, in particular to a vegetable seeder.

Background

Sowing is a basic link of agriculture, and the quality of sowing affects the rate of emergence later. With the development of modern technology, the technical level of the seeding machine is further improved. Particularly, the existing precision seeder has the advantages of saving fine seeds, no need of thinning, uniform distribution of fine-sowed field plants, reasonable close planting and contribution to seedling growth. Meanwhile, the precision sowing also has the effects of saving time and labor and increasing yield. Therefore, precision seeding has become a major trend.

In the traditional seeding machine, the row spacing is basically fixed, but the seeding row spacing of different crops and the same crop under different culture management conditions has certain scientific change. However, agricultural machinery is high in purchase cost, and the development of the seeding machine is always limited due to the lack of universality.

Therefore, the vegetable sowing machine with the adjustable row spacing is of great significance.

Disclosure of Invention

Aiming at the technical problems in the prior art, the invention aims to: the utility model provides a vegetable seeder can realize that the row spacing is adjusted to changeable while of cave spacing to reach the purpose of high-efficient seeding.

The purpose of the invention is realized by the following technical scheme: the seeding device comprises a seed metering device unit, a furrow opener unit, a power transmission unit and a row spacing adjusting unit, wherein the seed metering device unit is positioned above the furrow opener unit, the seed metering device unit is connected with the furrow opener unit through the power transmission unit, and the row spacing adjusting unit is connected with the seed metering device unit.

Further, the seed metering device unit comprises a seed metering device and a rack assembly for erecting the seed metering device, wherein the rack assembly comprises a main frame, support rods positioned on two sides of the main frame and a transmission shaft positioned in the middle of the main frame.

Furthermore, the furrow opener unit comprises a furrow opener, an elastic part, a front pull plate, a front pin shaft, a rear connecting shaft, a rear rotating pin shaft and a rear rotating fork shaft, the furrow opener is hinged to the rear rotating pin shaft, the rear rotating pin shaft is detachably connected with the rear connecting shaft, the front end of the furrow opener is hinged to the front pull plate through the front pin shaft, the rear end of the furrow opener is hinged to the rear rotating pin shaft, and the elastic part is arranged between the rear rotating pin shaft and the rear rotating fork shaft.

Further, the power transmission unit comprises a motor assembly, a gearbox and a chain wheel, the chain wheel is matched with the transmission shaft, and the chain wheel is axially fixed through a locking screw.

Further, the row spacing adjusting unit comprises a supporting plate, a front hook plate and a rear hook plate, the supporting plate is located above the front hook plate, and the front hook plate and the rear hook plate are installed on the supporting rod.

Furthermore, the front hook plate and the rear hook plate are provided with round holes, and the front hook plate and the rear hook plate are installed on the supporting rod through the round holes.

Furthermore, both ends of the rear turning fork shaft penetrate through the rear hook plate.

Further, the front hook plate is connected with the front pulling plate through a fastener.

Further, the seed metering device is positioned right above the furrow opener, and the lowest point of the blade of the furrow opener is vertically aligned with the seed metering opening of the seed metering device.

Further, the furrow opener is a sliding cutter type furrow opener.

Compared with the prior art, the invention has the following advantages and effects:

the vegetable seeder comprises at least one seeding device, wherein the seeding device comprises a seed metering unit, a furrow opener unit, a power transmission unit and a row spacing adjusting unit, the seed metering unit is positioned above the furrow opener unit, the seed metering unit is connected with the furrow opener unit through the power transmission unit, the row spacing adjusting unit is connected with the seed metering unit, and the function that the row spacing can be adjusted while the hole spacing is variable during vegetable seeding is realized through mutual matching among the seed metering unit, the furrow opener unit, the power transmission unit and the row spacing adjusting unit.

Drawings

Fig. 1 is a front view of a vegetable seeder according to an embodiment of the present invention.

Wherein, in the embodiment of the invention: 1. a seed sowing device; 2. a support bar; 3. a drive shaft; 4. a furrow opener; 5. a front pulling plate; 6. a front pin shaft; 7. a rear rotating shaft; 8. a rear rotating pin shaft; 9. a rear fork shaft; 10. a front hook plate; 11. a rear hook plate; 12. a support plate; 13. a spring; 14. locking the screw; 15. a reinforcing frame.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.

As shown in fig. 1, a vegetable seeder according to a preferred embodiment of the present invention includes at least one seeding device including a seed unit, a furrow opener unit, a power transmission unit, and a row spacing adjustment unit, the seed unit being located above the furrow opener unit, the seed unit being connected to the furrow opener unit through the power transmission unit, the row spacing adjustment unit being connected to the seed unit. According to the vegetable seeder, the functions that the hole distance is variable and the row distance can be adjusted during vegetable seeding are realized through the mutual matching of the seed metering device unit, the furrow opener unit, the power transmission unit and the row distance adjusting unit.

Specifically, the seed metering device unit comprises a seed metering device 1 and a rack assembly for erecting the seed metering device 1, wherein the rack assembly comprises a main frame, support rods 2 positioned on two sides of the main frame and a transmission shaft 3 positioned in the middle of the main frame. Wherein, the frame subassembly is the subassembly of freely dismantling, installs in the reservation position on the seeder through the bolt.

The seed sowing device 1 is a core mechanism of a seed discharging machine, and is preferably a spring-preloaded pneumatic seed sowing device 1. Due to the adoption of the spring pre-tightening device, the air tightness of the air chamber can be enhanced. Therefore, the seeding unit 1 requires the air quantity of the fan to be reduced, and the vibration of the whole machine is reduced, thereby being beneficial to stable seeding.

Wherein, the concrete mounted position of transmission shaft 3 is the front side in the middle of the main frame to, install a plurality of sprockets with transmission shaft 3 matched with on the transmission shaft 3, the sprocket can carry out axial fixity through locking screw 14, thereby, inputs power transmission shaft 3 to seed metering ware 1.

In addition, the furrow opener unit comprises a furrow opener 4, an elastic piece, a front pull plate 5, a front pin shaft 6, a rear connecting shaft, a rear rotating pin shaft 8 and a rear rotating fork shaft 9, wherein the rear end of the furrow opener 4 is hinged with the rear rotating pin shaft 8 through a pin shaft, the rear rotating pin shaft 8 is detachably connected with the rear connecting shaft, and the rear rotating shaft 7 is connected with the rear rotating pin shaft 8. In the present embodiment, the rear pivot pin shaft 8 is screwed to the rear coupling shaft and is locked by a nut. The front end of the furrow opener 4 is hinged with the front pull plate 5 through a front pin shaft 6 to form a revolute pair, the rear end of the furrow opener 4 is hinged with a rear rotating pin shaft 8, and the elastic part is arranged between the rear rotating pin shaft 8 and a rear rotating fork shaft 9. The upper end of the rear connecting shaft penetrates through a hole in the middle of the rear rotary fork shaft 9, the two ends of the rear rotary fork shaft 9 penetrate through reserved holes of the rear hook plate 11, and axial limiting is carried out through the baffle plate and the split pin. And a reinforcing frame 15 is arranged between two adjacent front pull plates 5, so that the stability of the furrow opener unit is improved.

In the vegetable seeder, the furrow opener 4 is a profiling furrow opener 4, and can ensure uniform and stable furrowing and seeding depth as profiling is carried out according to different ground heights. In the embodiment, the furrow opener 4 is preferably a sliding blade furrow opener 4, and the whole space size is in the space range of 40 × 35 × 100mm, so that the furrow opener is convenient to disassemble and replace. In addition, a connecting rod at the tail part of the furrow opener 4 is sleeved with a spring 13, and the upper side of the connecting rod is provided with a limit gasket. Thus, the shank 4 is free to rotate about the nose pivot over a height of 5 cm.

The power transmission unit comprises a motor assembly, a gearbox and a chain wheel, the chain wheel is matched with the transmission shaft 3, and the chain wheel is axially fixed through a locking screw 14. The power transmission unit provides power for the whole machine and is an important component for transmitting the power to the execution structure.

The row spacing adjusting unit comprises a supporting plate 12, a front hook plate 10 and a rear hook plate 11, the supporting plate 12 is located above the front hook plate 10, and the front hook plate 10 and the rear hook plate 11 are both mounted on the supporting rod 2. The row spacing adjusting unit is used as a vegetable seeder to adapt to the seeding requirements of different row spacings, is an adjustable mechanism and has important significance. Both ends of the rear fork shaft 9 penetrate through the rear hook plate 11. In addition, the front hook plate 10 is connected to the front pulling plate 5 by a fastener, preferably a bolt.

In addition, the front hook plate 10 and the rear hook plate 11 are both provided with round holes, and the front hook plate 10 and the rear hook plate 11 are both mounted on the support rod 2 through the round holes. And the locking screws 14 arranged on the front hook plate 10 and the rear hook plate 11 are opposite to the optical axes at the two sides.

In the vegetable seeder, the seed sowing device 1 is positioned right above the furrow opener 4, the lowest point of the cutting edge of the furrow opener 4 is vertically aligned with the seed sowing port of the seed sowing device 1, the cutting edge of the furrow opener 4 adopts a local cutting edge cast by cast iron and is arranged on the furrow opener 4 by using screws. Therefore, when the cutting edge is worn, the cutting edge can be conveniently detached and replaced. The furrow opener unit and the seed meter unit as a whole can move freely on the support bar 2 and are fixed on the support bar 2 by locking screws 14.

The vegetable seeder provided by the invention is based on the existing hole spacing adjusting device, improves the row spacing adjusting device, and integrates some technologies of the split type profiling furrow opener 4. The vegetable seeder has the advantages that the row spacing is adjustable, the single furrow opener 4 can independently perform profiling ditching, the operation is convenient, the seeding quality is good, the stability of the whole seeder is good, labor force can be greatly liberated, the production cost is saved, and the like.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

Claims

1. The vegetable seeding machine is characterized by comprising at least one seeding device, wherein the seeding device comprises a seed metering unit, a furrow opener unit, a power transmission unit and a row spacing adjusting unit, the seed metering unit is positioned above the furrow opener unit, the seed metering unit is connected with the furrow opener unit through the power transmission unit, and the row spacing adjusting unit is connected with the seed metering unit; the seeding unit comprises a seeding unit and a rack assembly for erecting the seeding unit, wherein the rack assembly comprises a main frame, support rods positioned on two sides of the main frame and a transmission shaft positioned in the middle of the main frame; the furrow opener unit comprises a furrow opener, an elastic part, a front pull plate, a front pin shaft, a rear connecting shaft, a rear rotating pin shaft and a rear rotating fork shaft, wherein the furrow opener is hinged with the rear rotating pin shaft, the rear rotating pin shaft is detachably connected with the rear connecting shaft, the front end of the furrow opener is hinged with the front pull plate through the front pin shaft, the rear end of the furrow opener is hinged with the rear rotating pin shaft, and the elastic part is arranged between the rear rotating pin shaft and the rear rotating fork shaft; the row spacing adjusting unit comprises a supporting plate, a front hook plate and a rear hook plate, the supporting plate is positioned above the front hook plate, and the front hook plate and the rear hook plate are both arranged on the supporting rod; the front hook plate and the rear hook plate are both provided with round holes, and the front hook plate and the rear hook plate are both arranged on the support rod through the round holes; and two ends of the rear turning fork shaft penetrate through the rear hook plate.

2. A vegetable planter as claimed in claim 1, wherein the power transmission unit comprises a motor assembly, a gearbox and a sprocket, the sprocket cooperating with the drive shaft and the sprocket being axially fixed by a locking screw.

3. The vegetable seeder of claim 1, wherein the front hook plate is connected to the front pull plate by a fastener.

4. The vegetable seeder of claim 1, wherein the seed meter is positioned directly above the furrow opener and a lowest point of the cutting edge of the furrow opener is vertically aligned with the seed metering port of the seed meter.

5. The vegetable seeder of claim 1, wherein the furrow opener is a sliding blade furrow opener.