A Horizontal Speed ​​Compensation Mechanism Driven by Eccentric Gears of Corn Seeder

Abstract

The invention relates to the technical field of corn seeding machines, in particular to a mechanism for compensating driving horizontal speed of an eccentric gear of a corn dibbling machine. The mechanism comprises a driving eccentric gear and a driven eccentric gear which are engaged, wherein the driving eccentric gear and a power input chain wheel are fixedly connected by a power input shaft; the driven eccentric gear and a driving crank are fixedly connected by a driving crankshaft; the driving crank, a driven crank, a hole sowing rod and a machine frame are connected into a parallel four-rod mechanism by hinges; the hole sowing rod is vertically and glidingly connected with a first slide block and a second slide block; the first slide block is connected with the upper end of the hole sowing rod through a damping spring; a first chain wheel is fixedly connected with the driving crankshaft, and a second chain wheel is fixedly connected with the driven crankshaft; the first chain wheel and the second chain wheel are connected by a chain; mounted bearings are arranged on the driving crankshaft and the driven crankshaft. The mechanism has the advantages that the hole sowing rod is guaranteed to be vertically inserted into soil and plugged out of soil, the disturbance to the soil layer is reduced, the damage degree to a ground film is reduced, the productivity of precise seedingof corn is improved, and the labor intensity is decreased.

Description

technical field [0001] The invention relates to the technical field of corn planters, in particular to an eccentric gear-driven horizontal speed compensation mechanism for a corn seeder. Background technique [0002] The geographical environment in Gansu is harsh, and there have been nine droughts in ten years. Plastic film mulching technology can maximize the effect of increasing temperature and preserving moisture. At present, most film-covered seeders in China use the mode of sowing first and then spreading film. Before emergence, it is necessary to manually or mechanically break the film to release the seedlings, which increases the operation process and labor intensity. The perforated seeding technology on the film is perforated and sown on the film, which saves the process of putting seedlings. [0003] In 1993, Chen Xiaoguang first proposed and in-line seeding principle. Since then, a lot of research has been done on in-line sowing in China. In 2001, Liu Junqian an...

AI Technical Summary

Problems solved by technology

[0004] "Autumn mulching" and "Dingling mulching" in Northwest China have obvious advantages over traditional mulching. "Autumn mulching" is to keep the rainfall in March (July, August, and September) in autumn and plant corn in April of the next year. It is used for germination and rooting; "top mulch" is to avoid the loss of moisture on the surface during the process of "freezing day and night", but it is more difficult to sow

For the two mulching methods, Gansu still generally adopts manual or simple machinery, which has high labor intensity and low sowing qualified rate

Almost all domestically developed and mature film seeders are roller-type seeders. When sowing shallow crops, the trochoidal movement track of the hole forming device has little effect on the film. When planting deep crops, it is easy to cause film picking and scraping. and other problems, the windy northwest will aggravate the cracking of membrane holes; at the same time, the soil around the seeds is disturbed greatly, resulting in a longer seed germination cycle

The in-line sowing technology uses a puncher to punch holes in the soil covered by plastic film, and only cuts the film at the hole position, which is beneficial to moisture conservation and drought resistance. However, the sowing performance of passive in-line hole sowing in the existing technology is greatly affected by the ground level.

Images