A seed leakage compensating device for spoon type seed metering device

Abstract

A seed leakage compensation device for a spoon-type seed metering device, which is installed on a seeder and set corresponding to the seeding mechanism, including a reseeding bracket, which is installed on the frame of the seeder; a seed leakage detection mechanism is arranged on the seeding mechanism to detect the missing seed information of the seed metering mechanism in real time; the ground wheel speed detection mechanism is arranged on the ground wheel of the planter to detect the ground wheel speed in real time; the controller is respectively connected with the seed leakage detection mechanism and the ground wheel speed detection mechanism and the seeding mechanism are connected; and the replanting mechanism is installed on the replanting bracket, the replanting mechanism includes a replanting box, a replanting turntable, a replanting motor and a replanting funnel, and the replanting turntable is installed on the replanting The bottom of the seed box, the replanting motor is respectively connected with the replanting turntable and the controller, the replanting funnel is located below the replanting turntable and is set corresponding to the seeding mechanism; the controller is based on the received ground wheel speed information and Leaked seed information, real-time control of the seeding motor and re-seeding motor to complete the seeding and re-seeding actions.

Description

technical field [0001] The invention relates to a seeder, in particular to a seed leakage compensating device for a scoop-type seed meter for the seeder. Background technique [0002] Spoon-type seed metering device is the most widely used seed metering device on large-grain seed 8 seeders. However, due to the blindness of the seed picking method, the seed metering performance is closely related to the structure of the seed picking spoon and the shape of the seed 8. The problem of seed leakage It has always been an insurmountable problem for the spoon type seed metering device. [0003] Taking the spoon-type potato planter as an example, potatoes in foreign countries are generally planted on a large scale, and the breeding technology is perfect. Take the method of moderate dense planting. There is a certain gap between the performance of domestic potato planters and foreign countries, and domestic potato seed potatoes use diced potatoes, which have large differences in the...

AI Technical Summary

Problems solved by technology

[0002] Spoon-type seed metering device is the most widely used seed metering device on large-grain seed 8 seeders. However, due to the blindness of the seed picking method, the seed metering performance is closely related to the structure of the seed picking spoon and the shape of the seed 8. The problem of seed leakage It has always been a difficult problem that the spoon seed meter cannot overcome

There is a certain gap between the performance of domestic potato planters and foreign countries, and domestic potato seed potatoes use diced potatoes, which have large differences in the shape of seed blocks and a high rate of missed seeds

In addition, the domestic planting method is small-area refined planting, and individual farmers do not accept the sowing method with a high rate of missed seeds. High labor intensity, high labor costs, and potential safety hazards

[0004] Many scholars at home and abroad have studied the leak detection and compensation methods of the spoon-type seed metering device, but they are all in the experimental research stage, and there are no reports of application in agricultural production. There are two main reasons: one is that the leak detection is commonly used The shielding effect of the infrared photoelectric sensor is logically judged. This method is susceptible to dust interference and cannot be used continuously for a long time in the field with high dust. Second, the replanting system uses stepping motors, crank sliders, and magnetic steel to generate reciprocating motion. , to achieve single-seed and replanting actions, but the method of using the cavity to separate seed potatoes has extremely high requirements on the size of the seed potatoes, and the seed potatoes used for replanting need to be strictly screened in advance, which is time-consuming and laborious, and increases production costs.

Generally speaking, none of these replanting methods solves the problem of taking seeds in the replanting system, and cannot be applied to actual production

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