AU2020103588A4

AU2020103588A4 - A Pneumatic Suction Seed Extractor with Lever

Info

Publication number: AU2020103588A4
Application number: AU2020103588A
Authority: AU
Inventors: Lin He; Xiaolian Lv; Xiaorong Lv; Xiao Wang
Original assignee: Sichuan Agricultural University
Current assignee: Sichuan Agricultural University
Priority date: 2020-11-21
Filing date: 2020-11-21
Publication date: 2021-02-04
Anticipated expiration: 2028-11-21

Abstract

The invention discloses a pneumatic suction seed extractor with lever, which is characterized in that the drill machine is provided with adjustable air inlet pipe, the upper end of the adjustable air intake pipe is connected with the original air inlet pipe of the drill machine, the lower end is communicated with the lower cavity of the air chamber of the drill, and the adjustable air intake pipe is provided with a through-hole mounting and a lever set; The adjusting block is arranged on the side wall of the drum of the seeder to squeeze the composition of the lever so as to rotate and control the opening and closing of the adjustable air intake pipe. The invention is specially designed for precise sowing of large seed such as peanut, and the structure can quickly realize the switch of adjusting block during the planting process of the machine and tool, and adjust the opening and closing of the air inlet pipe by pulling the piece control, so as to achieve the adjustment of sowing grain number and hole distance during the sowing process.

Description

A Pneumatic Suction Seed Extractor with Lever

TECHNICAL FIELD

[01] The invention relates to the technical field of agricultural machinery and equipment, in particular to a pneumatic suction seed extractor with lever.

BACKGROUND

[02] The seed picking principle of the seeding device can be divided into two categories: mechanical and pneumatic. Because the seed size of the air-suction seed picker is not strict, there is no need of the selection and grading, so the seed damage is less, and the single-seed dot sowing can be easily realized, and the operation speed of the seeder is quick, thus it has been widely studied and applied. In the course of sowing, there will be different requirements for the number of grains per hole and the size of the hole distance for different or the same crops, and the adjustment of the hole distance and the number of seeds per hole of the existing air-suction sowing machine is usually accomplished by replacing the suction tray with different number of suction holes and the duckbill assembly. In order to improve the adaptability and operation flexibility of the seeding machine, it is necessary to design a seeding machine which can adjust the seed number and hole distance quickly and conveniently in the operation.

SUMMARY

[031 In order to avoid the disadvantages of the prior art, the invention provides a rod air suction seed picker, which can change the residence time and rotation frequency of the rotating position of the clutch by rapidly changing the adjusting block of different shape or increasing or decreasing the number of adjusting blocks according to the planting mode and the requirements of the seed grain number, thereby controlling the opening and closing time of the adjustable intake pipe. Thus, the change of seed number and distance per hole in the process of sowing can realized.

[04] The invention adopts the following technical scheme to solve the technical problems:

[051 The structure features of a lever air-suction seed extractor are as follows:

[061 The seeder is provided with an adjustable air inlet pipe (1), the upper end of the adjustable air inlet pipe (1) is connected with the original air inlet pipe of the seeder, and the lower end is communicated with the lower cavity of the seeder chamber. A adjusting block (3) is arranged on the side wall of the cylinder of the seeder to squeeze the composition of the lever (2) to rotate and control the opening and closing of the adjustable air inlet pipe (1).

[071 The structure features of the air suction seed extractor of the lever are also as follows: the lever comprises (2) a lever (21), a clutch (22), a torsion spring (23), and a pressing block (24), and the lever (21) is fixedly connected with a clutch (22), and the torsion spring (23) is arranged on the lever (21). One end is fixed on the adjustable intake pipe (1), the other end is fixed on the pressing block (24) and the pressing block (24)is fixed at the end ofthe lever(21).

[081 The beneficial effects of the present invention are as follows:

[091 1. The whole structure of the invention is simple and novel, which is easy to operate, and it is time-saving and labor-saving; It is suitable for precise sowing of large seed such as peanut. It can adjust the distance of planting hole by adjusting the number of adjusting blocks quickly, improve the quality of sowing, reduce labor intensity and improve the efficiency of sowing.

[0101 2. The invention adopts adjustable air inlet pipe structure and the composition structure of the lever, and through the effective coordination with the adjusting block, the adjustable ability of sowing is realized effectively, thus the change of the number of seeds per hole and the distance between sowing holes can be realized in the process of sowing.

BRIEF DESCRIPTION OF THE FIGURES

[011] Figure 1 is the schematic diagram of the air chamber structure of the invention;

[012] Figure 2 is the schematic diagram of the side-view full-section structure of the invention;

[0131 Figure 3 is the schematic diagram of the structure of the lever;

[0141 Figure label: 1 adjustable air intake pipe; 2 lever composition; 3 adjustment block; 21 lever, 22 clutch; 23 torsion spring; 24 pressing block.

DESCRIPTION OF THE INVENTION

[0151 The structure features of the air suction type seed extractor of the lever are as follows:

[0161 As shown in Figure 1 and Figure 2, the drill machine is provided with adjustable air intake pipe 1, the upper end of the adjustable air intake pipe 1 is connected with the original air inlet pipe of the drill, the lower end is communicated with the lower cavity of the air chamber of the drill, and the adjustable air intake pipe 1 is provided with a through hole mounting and a lever comprising 2; The adjusting block 3 is arranged on the side wall of the drill drum to squeeze the lever set 2 so that its rotation control can adjust the opening and closing of the air inlet pipe 1.

[0171 In concrete implementation, as shown in Figure 2 and Figure 3, the lever set comprises a lever 21, a clutch 22, a torsion spring 23, and a press block 24, and the lever 21 is connected with a clutch 22, and the torsion spring 23 is arranged on the lever 21, one end is fixed on an adjustable intake pipe 1, and the other end is fixed on a pressing block 24. The press block 24 is fixed at the end of the lever 21.

[0181 Action procedure :

[019] Before sowing, according to the requirements of planting mode and seeding number, the adjusting blocks 3 with corresponding number and shape are installed on the drum side wall of the seeder (when the speed of the drum and the rotating speed of the seed suction plate are constant, the fewer adjusting blocks 3 installed on the same circumference of the drum side wall, the greater the distance between sowing holes; When the adjusting block 3 pushes the shifting rod 2 to rotate, so that the paddle 22 controls the closing of the adjustable air inlet pipe 1, the longer the time of closing and staying, that is, the longer the time of cutting off the air source, the more grains per hole), thus realizing the adjustment of sowing hole distance and grains per hole in the sowing process.

[0201 When sowing, with the operation of the seeder, the machine and the implement will pull the hole sowing wheel to rotate, and drive the seed sucking disc to rotate relative to seed chamber and air chamber through the drive shaft, at the same time, the air intake pipe and the regulating air intake pipe 1 will be ventilated, so that both the upper and lower chambers of the air chamber have negative pressure, and the seed sucking disc will fully absorb the seeds in the seed chamber and take them out of the seed chamber, when the seed sucking disc is transferred to the lower part of the air chamber, due to the action of adjusting block 3 on the roller side plate, make the dial rod 21 rotate and drive the dial plate 22 rotate and close the adjustable air inlet pipe 1, that is, cut off the air source of the lower cavity, at this time the lower cavity is a non vacuum area, when the seed sucking disk is turned to the lower cavity non-vacuum area, the seed falls on the dead weight to realize the seeding process, when adjusting block 3 leaves the lever 21, the displacement plate 22 is reset and opened by the action of torsion spring, and the negative pressure is restored in the lower chamber.

[021] Although the invention has been described with reference to specific examples, it will be appreciated by those skilled in the art that the invention may be embodied in many other forms, in keeping with the broad principles and the spirit of the invention described herein.

[022] The present invention and the described embodiments specifically include the best method known to the applicant of performing the invention. The present invention and the described preferred embodiments specifically include at least one feature that is industrially applicable

Claims

THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS:

1. The utility model discloses an air suction type seed extractor for a lever, which

is characterized in that:

The drill machine is provided with an adjustable air inlet pipe (1), the upper end

of the adjustable air inlet pipe (1) is connected with the original air inlet pipe of the drill

machine, and the lower end is communicated with the lower cavity of the seeder chamber.

A adjusting block (3) is arranged on the side wall of the cylinder of the seeder to squeeze

the composition of the lever set (2) to rotate and control the opening and closing of the

adjustable air inlet pipe (1).

2. According to claim 1, the pneumatic suction seed extractor with lever is

characterized in that the lever set comprises (2) a lever (21), a clutch (22), a torsion spring

(23), and a pressing block (24). The lever (21) is fixedly connected with a clutch (22),

and the torsion spring (23) is sleeved on the lever (21). One end is fixed on the adjustable

intake pipe (1), the other end is fixed on the pressing block (24) and the pressing block

(24) is fixed at the end of the lever (21).