Sowing-depth-adjusting and profiling depth-limiting furrowing device for mini-potato sowing machine

Abstract

The invention relates to a sowing-depth-adjusting and profiling depth-limiting furrowing device for a mini-potato sowing machine. The sowing-depth-adjusting and profiling depth-limiting furrowing device provided by the invention is arranged below a seed metering frame of the mini-potato sowing machine, and comprises a depth-limiting wheel, a furrow opener, a supporting frame, a spring compressionadjusting mechanism, a depth adjusting mechanism and a parallelogram mechanism. The sowing-depth-adjusting and profiling depth-limiting furrowing device provided by the invention has the following advantages: the structure is simple; adjustment is convenient; operation is reliable; through changing of circular holes arranged on an adjusting plate and penetrated by a locking pin to adjust the depthof sowing, the purpose of profiling depth limitation of the furrow opener is achieved under the actions of supporting of the depth-limiting wheel and combined constraint limitation of the spring compression adjusting mechanism and the parallelogram mechanism; and by adoption of a pressure spring for supporting of the seed metering frame, the front end of the furrow opener and the parallelogram mechanism are in a rotatable connection relationship, and a furrowing shovel of the furrow opener has a shoveling and cutting blade curve with a Kimede spiral structure and a blade angle of 45 degrees,so the furrow opener automatically lifts up to avoid obstacles and achieves the function of self-protection when the furrowing shovel encounters hard objects like a stone in the sowing process of thesowing machine.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a sowing depth adjustment and profiling depth-limiting ditching device for a miniature potato planter. Background technique [0002] At present, potato sowing in my country is mainly diced potato, which is easy to cause virus infection, and the rate of missed seeding during mechanical sowing is high, resulting in a decline in potato yield and quality. In order to solve the above problems, virus-free micro-potatoes ("mini-potatoes" for short) came into being and the sowing area increased year by year. However, most of the sowing of miniature tubers in my country is done manually, the production cost is high, and the quality of sowing is poor, while the planting machinery for sowing miniature tubers is still in its infancy. Due to the vast territory of our country, different agricultural areas have different agronomic requirements for potato planting. At...

AI Technical Summary

Problems solved by technology

However, most of the sowing of miniature tubers in my country is done manually, the production cost is high, and the sowing quality is poor, while the planting machinery for sowing miniature tubers is still in its infancy.

Due to the vast territory of our country, different agricultural areas have different agronomic requirements for potato planting. At the same time, due to the low flatness of the planting plots, the sowing depth stability of the miniature potato planter is poor.

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