Seeder with middle ditching, unit profile modeling and seeding depth adjusting functions

Abstract

The invention discloses a seeder with middle ditching, unit profile modeling and seeding depth adjusting functions, belonging to the field of rotary tillage seeders. The seeder mainly comprises a frame, a rotary tillage transmission device, a rotary tillage mechanism, a middle ditching mechanism, a seed-metering transmission mechanism, a seeding unit and a seeding amount electric control system. The operations of rotary tillage, middle ditching and seeding can be finished at a time. During operation, power of a tractor is transmitted to a rotary tillage cutter shaft and a ditching cutter shaft through a universal joint, a gearbox, a rotary tillage transmission shaft and a gear case, rotary tillage and ditching are performed, and the ditch wall is smooth through a breast board, a ditch cleaning shovel and a ditch strengthening device; the included angle between ditch strengthening plates is adjusted through a lead screw mechanism so as to change the ditch shape; the tractor hub rotating speed acquired by a speed measuring probe is processed by a programmable logic controller (PLC), the processed signal is transmitted to a driver, the rotating speed of a stepping motor is controlled to be matched with the speed of the tractor, a bucket wheel tray of the seed-metering device is driven through chain drive, so that precision drilling is realized; the line spacing can be adjusted by loosening a U-shaped bolt and moving the seeding unit; moreover, uniform and consistent seeding depth of each line can be guaranteed through parallel four-rod unit profile modeling and V-shaped wheel depth limiting.

Description

Technical field [0001] The invention relates to the technical field of seeders, in particular to the field of rotary tillage seeders. Background technique [0002] At present, foreign seeders are mostly large-scale machines, which are expensive. Domestic seeders are mostly small machines that meet single sowing requirements. The price is relatively low, but they have single functions and poor seeding quality, which cannot meet the development requirements of agricultural mechanization in my country. The accuracy of the existing planter's sowing depth and row-to-plant distance (sowing rate) is not high, and its function is single, resulting in complicated production process and serious energy waste. Therefore, the current agricultural production is in urgent need of a rotary seeder that can complete rotary tillage, precision seeding, ditching operations and adjustable row-to-plant spacing at one time. Contents of the invention [0003] The purpose of the present invention ...

AI Technical Summary

Problems solved by technology

[0002] At present, most foreign seeders are large-scale machines, which are expensive. Domestic seeders are mostly small machines that meet the single sowing requirements. The price is relatively low, but they have single functions and poor seeding quality, which cannot meet the development requirements of agricultural mechanization in my country.

The accuracy of the existing seeder sowing depth, row-to-plant spacing (sowing rate) is not high, and the function is single, resulting in complicated production process and serious energy waste

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