CN113973550A

CN113973550A - Vibration disturbance seed filling precision seed sowing device

Info

Publication number: CN113973550A
Application number: CN202111336544.1A
Authority: CN
Inventors: 唐汉; 徐文龙; 徐常塑; 徐福东; 王金武; 王金峰; 王奇; 周文琪
Original assignee: Northeast Agricultural University
Current assignee: Northeast Agricultural University
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-01-28

Abstract

A vibration disturbance seed filling precision seed sowing device belongs to agricultural machinery; the seed sowing device is characterized in that a hollow transmission shaft and a hollow motor are rotatably arranged on a vertically arranged fixed shaft from top to bottom, the hollow motor is connected with the hollow transmission shaft, a rotating rack with a seed sowing hole is fixedly arranged on the hollow transmission shaft, a spring seat plate, a pressure spring, a seed conveying plate with a seed conveying hole and a roller are arranged on the rotating rack, a vibration exciter and a cam are fixedly arranged on the upper end part of the fixed shaft from top to bottom in sequence, the cam is in contact fit with the roller, an annular vibration plate with a seed filling hole is arranged on the vibration exciter through the transmission shaft, an annular rubber vibration absorption pad is arranged on the lower end surface of the annular vibration plate, an annular groove-shaped seed box is fixedly arranged on the vibration exciter through a seed box fixing support seat, and a seed sowing pipe is vertically and fixedly arranged on the fixed shaft through a support; the device has novel, unique and reasonable structure, good quality of seed filling and discharging operation, high precision of seed discharging and reliable use, and provides a new type for precision seeding operation.

Description

Vibration disturbance seed filling precision seed sowing device

Technical Field

The invention belongs to agricultural machinery, and mainly relates to a precision seed sowing device for vibrating and disturbing seed filling.

Background

When the conventional hole cell type seed sowing device and the finger-clamping type seed sowing device are used for seed filling operation, seeds are filled into the seed sowing device from the seed box by virtue of the flowing performance generated by the self gravity. Due to the shape of the seeds and the posture of the seeds in the seed box and the extrusion between the seeds caused by gravity, the flowing performance of the seeds is poor, the phenomenon of seed leakage and filling is easy to generate, and the quality of the seeding operation is reduced. Particularly, in recent years, with the improvement of the technological level, the precision seeding requirement is more and more urgent, and how to reliably ensure and improve the seeding operation quality and meet the requirement of agricultural production operation is a problem which needs to be solved.

Disclosure of Invention

The invention aims to solve the problems in the prior art, researches and designs a vibration disturbance seed filling precision seed sowing device by combining with the actual requirements of precision sowing operation, improves the seed fluidity by adjusting the proper seed filling posture of seeds in vibration, and achieves the purpose of ensuring and improving the quality and effect of seed filling and sowing.

The purpose of the invention is realized as follows: a hollow transmission shaft and a hollow motor are rotatably arranged on a fixed shaft which is vertically arranged from top to bottom in turn through a bearing, the hollow motor is connected with the hollow transmission shaft, a cam is fixedly arranged on the outer part of the upper end of the fixed shaft and positioned at the inner side part of the hollow transmission shaft, a rotating frame is fixedly supported and arranged on the upper end surface of the hollow transmission shaft, seed sowing holes are uniformly distributed on the bottom plate of the rotary stand along the circumferential direction, a seed conveying plate with seed conveying holes is arranged on the upper wall surface of the bottom plate of the rotary stand and reciprocates along the radial direction, the inner end part of the seed conveying plate is rotatably provided with a roller which is in contact fit with the cam, the spring seat plate is fixedly arranged on the inner wall surface of the circumferential vertical plate at the outer side of the rotating frame, and the inner end and the outer end of the pressure spring are respectively in supporting, extruding, contact fit with the seed conveying plate and the spring seat plate; a vibration exciter is fixedly arranged at the top end part of the fixed shaft, and an annular vibration disturbing plate is supported and arranged on the vibration exciter through a transmission shaft; the annular rubber vibration absorption pad is fixedly arranged on the lower end face of the annular vibration disturbance plate and is matched with the upper wall face of the bottom plate of the rotary rack, a hole filling hole is coaxially formed in the annular vibration disturbance plate and the annular rubber vibration absorption pad, an annular groove-shaped seed box is fixedly arranged at the upper end part of the vibration exciter through a seed box fixing and supporting seat, and an annular groove of the annular groove-shaped seed box is positioned above the annular vibration disturbance plate and is communicated with the annular groove-shaped seed box; and the seed discharging pipe is vertically and fixedly arranged on the fixed shaft through a support, is positioned below the rotating frame and is sequentially communicated or in closed fit with the seed discharging holes, so that the vibration-disturbance seed-filling precision seed discharging device is formed.

The invention adopts the vibration exciter to vibrate the annular vibration disturbing plate with the seed filling hole in a radial reciprocating manner, improves the flowing performance of seeds while adjusting the seed filling posture of the seeds in the annular groove-shaped seed box, ensures the seed filling and discharging operation effect of the seed metering device, has the characteristics of unique, novel and reasonable structure, good seed filling and discharging operation quality, high seed metering precision and reliable use, and provides a novel type for agricultural precision seeding operation.

Drawings

FIG. 1 is a schematic diagram of the general structure of a vibration disturbance seed filling precision seed metering device;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic view of the structure of the ring-shaped tank, the ring-shaped vibration-disturbing plate and the ring-shaped rubber vibration-absorbing pad;

FIG. 4 is a three-dimensional schematic diagram of the overall structure of a vibration disturbance seed filling precision seed metering device.

Description of part numbers in the figures:

1. the device comprises an annular groove-shaped seed box, 2, an annular vibration-disturbing plate, 3, an annular rubber vibration-absorbing pad, 4, a seed conveying hole, 5, a pressure spring, 6, a rotary frame, 7, a seed sowing hole, 8, a hollow transmission shaft, 9, a seed sowing pipe, 10, a bracket, 11, a hollow motor, 12, a bearing, 13, a fixed shaft, 14, a cam, 15, a vibration exciter, 16, a spring seat plate, 17, a seed conveying plate, 18, a roller, 19, a transmission shaft, 20, a seed filling hole, 21 and a seed box fixing and supporting seat.

Detailed Description

The following detailed description of the inventive embodiments is provided in connection with the accompanying drawings. A vibration disturbance seed filling precision seed sowing device is characterized in that a hollow transmission shaft 8 and a hollow motor 11 are rotatably arranged on a fixed shaft 13 which is vertically arranged from top to bottom in sequence through a bearing 12, the hollow motor 11 is connected with the hollow transmission shaft 8, a cam 14 is fixedly arranged on the outer part of the upper end of the fixed shaft 13 and positioned at the inner side part of the hollow transmission shaft 8, a rotary frame 6 is supported and fixedly arranged on the upper end surface of the hollow transmission shaft 8, seeding holes 7 are uniformly distributed on the bottom plate of the rotary frame 6 along the circumferential direction, a seed conveying plate 17 with a seed conveying hole 4 is arranged on the upper wall surface of the bottom plate of the rotating frame 6 in a reciprocating motion along the radial direction, a roller 18 is rotatably assembled at the inner end part of the seed conveying plate 17, the roller 18 is in contact fit with the cam 14, the spring seat plate 16 is fixedly arranged on the inner wall surface of the circumferential vertical plate at the outer side of the rotating frame 6, and the inner end and the outer end of the pressure spring 5 are respectively in supporting, extruding, contact fit with the seed conveying plate 17 and the spring seat plate 16; a vibration exciter 15 is fixedly arranged at the top end part of the fixed shaft 13, and the annular vibration-disturbing plate 2 is supported and arranged on the vibration exciter 15 through a transmission shaft 19; the annular rubber vibration absorption pad 3 is fixedly arranged on the lower end face of the annular vibration disturbance plate 2, the annular rubber vibration absorption pad 3 is matched with the upper wall face of the bottom plate of the rotating frame 6, a seed filling hole 20 is coaxially arranged on the annular vibration disturbance plate 2 and the annular rubber vibration absorption pad 3, an annular groove-shaped seed box 1 is fixedly arranged on the upper end part of the vibration exciter 15 through a seed box fixing support seat 21, and an annular groove of the annular groove-shaped seed box 1 is positioned above the annular vibration disturbance plate 2 and is communicated with the annular groove; the fixed shaft 13 is vertically and fixedly provided with a seed discharging pipe 9 through a bracket 10, and the seed discharging pipe 9 is positioned below the rotating frame 6 and is sequentially communicated or in closed fit with the seed discharging holes 7.

During the seed charging and discharging operation, the fixed shaft 13 utilizes the rotating power of the hollow motor 11 to drive the seed conveying plate 17 with the seed conveying hole 4, the roller 18, the pressure spring 5 and the spring seat plate 16 to rotate on the fixed shaft 13 through the rotating frame 6, meanwhile, the vibration exciter 15 drives the annular vibration disturbing plate 2 with the seed charging hole 20 to vibrate through the transmission shaft 19, the vibration of the annular vibration disturbing plate 2 improves the fluidity of the seeds in the annular groove-shaped seed box 1 and continuously adjusts the seed charging posture of the seeds to ensure that the seeds accurately and reliably fall into the seed charging hole 20, then, when the seed conveying hole 4 on the seed conveying plate 17 rotates to the position which is overlapped with the seed charging hole 20 up and down, the seeds in the seed charging hole 20 fall into the seed conveying hole 4 and continue to rotate along with the seed conveying plate 17, and when the seed conveying hole 4 with the seeds and the roller 18 rotate along with the seed conveying plate 17 to the curve of the immovable cam 14, under the action of the pressure spring 5, the seed conveying plate 17 rapidly moves radially inwards on the rotating rack 6, and when the seed conveying holes 4 on the seed conveying plate 17 coincide with the seed discharging holes 7 on the bottom wall of the rotating rack 6, seeds in the seed conveying holes 4 fall into the seed discharging pipe 9 through the seed discharging holes 7, so that primary precision seed discharging is completed; then under the thrust of the cam 14, the seed conveying plate 17 moves outwards in the radial direction, the pressure spring 5 is compressed, the next seed filling and discharging operation process is continued, and the continuous circulation is carried out in sequence.

Claims

1. The utility model provides a kind of precision seed metering ware is filled to disturbance that shakes which characterized in that: a hollow transmission shaft (8) and a hollow motor (11) are rotatably and sequentially arranged on a vertical fixed shaft (13) through a bearing (12) from top to bottom, the hollow motor (11) is connected with the hollow transmission shaft (8), a cam (14) is fixedly arranged on the outer part of the upper end of the fixed shaft (13) and positioned at the inner side part of the hollow transmission shaft (8), a rotary rack (6) is fixedly supported and fixedly arranged on the upper end surface of the hollow transmission shaft (8), seed sowing holes (7) are uniformly distributed and arranged on a bottom plate of the rotary rack (6) along the circumferential direction, a seed conveying plate (17) with seed conveying holes (4) is arranged on the upper wall surface of the bottom plate of the rotary rack (6) in a reciprocating motion along the radial direction, a roller (18) is rotatably arranged on the inner end part of the seed conveying plate (17), the roller (18) is in contact fit with the cam (14), and a spring seat plate (16) is fixedly arranged on the inner wall surface of the circumference of the outer side of the rotary rack (6), the inner end and the outer end of the pressure spring (5) are respectively in supporting, extruding, contacting and matching with the seed conveying plate (17) and the spring seat plate (16); a vibration exciter (15) is fixedly arranged at the top end part of the fixed shaft (13), and an annular vibration-disturbing plate (2) is supported and arranged on the vibration exciter (15) through a transmission shaft (19); the annular rubber vibration absorption pad (3) is fixedly arranged on the lower end face of the annular vibration disturbance plate (2), the annular rubber vibration absorption pad (3) is matched with the upper wall face of a bottom plate of the rotating rack (6), a hole filling hole (20) is coaxially formed in the annular vibration disturbance plate (2) and the annular rubber vibration absorption pad (3), an annular groove-shaped seed box (1) is fixedly arranged on the upper end part of the vibration exciter (15) through a seed box fixing support seat (21), and an annular groove of the annular groove-shaped seed box (1) is positioned above the annular vibration disturbance plate (2) and is communicated with the annular groove-shaped seed box; the fixed shaft (13) is vertically and fixedly provided with a seed discharging pipe (9) through a bracket (10), and the seed discharging pipe (9) is positioned below the rotating rack (6) and is sequentially communicated or in closed fit with the seed discharging hole (7).