Sowing furrowing profiling device

Abstract

The invention discloses a sowing furrowing profiling device. A profiling wheel (6) is pivoted at the bottom of the front part of a machine frame; a round disc furrow opener (7) is pivoted at the bottom of the back part; an output shaft of a motor is connected with an input shaft of a variable pump; an oil inlet of the variable pump is connected with an oil outlet of a servo oil cylinder; an oil inlet of the servo oil cylinder is connected with an upper oil opening of a hydraulic oil cylinder (5); the bottom of a variable pump moving servo slide valve slide rod (4) of the variable pump is lapped on the profiling wheel, so that the variable pump moving servo slide valve slide rod vertically moves along with the profiling wheel; an oil outlet of the variable pump is connected with the hydraulic oil cylinder through a two-position four-way valve (18); when the two-position four-way valve is not electrified, an oil outlet of the two-position four-way valve is communicated with a lower oil opening of the hydraulic oil cylinder; when the two-position four-way valve is electrified and is positioned in the second position (A), the oil outlet of the two-position four-way valve is communicated with the upper oil opening of the hydraulic oil cylinder; the lower oil opening of the hydraulic oil cylinder is connected with the oil inlet of the servo oil cylinder; a piston of the hydraulic oilcylinder is fixedly connected with a pivot shaft of the round disc furrow opener.

Description

technical field [0001] The invention relates to a sowing and ditching device, in particular to a sowing and ditching profiling device. Background technique [0002] Sowing and ditching is an important part of field sowing. In actual production, most of the field terrain is undulating and changeable. The existing sowing and ditching device is fixed behind the seeder. Inconsistency in depth makes it difficult to achieve a suitable sowing depth, which greatly affects the emergence rate in the field and affects the crop yield at the same time. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a sowing and ditching profiling device that can adjust the depth of ditching and sowing according to the actual terrain conditions in the field, has good field adaptability, flexible operation, and sensitive sensing . [0004] In order to solve the above technical problems, the pres...

AI Technical Summary

Problems solved by technology

[0002] Sowing and ditching is an important part of field sowing. In actual production, most of the field terrain is undulating and changeable. The existing sowing and ditching device is fixed behind the seeder. The depth is inconsistent, it is difficult to achieve a suitable sowing depth, which greatly affects the emergence rate in the field and affects the crop planting yield

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