Subsoil compaction device of rice precision seedling seeding machine

Abstract

The invention discloses a bottom soil compacting device of a rice seedling precisely-raising planter. The bottom soil compacting device comprises a frame, a hole aligning mechanism and a bottom soil compacting mechanism, wherein the hole aligning mechanism and the bottom soil compacting mechanism are arranged on the frame, and the frame is provided with a driving motor and a seedling tray conveying mechanism. The hole aligning mechanism comprises a limit baffle, a stepping motor, a limiting travel switch and a tray feeding travel switch; the bottom soil compacting mechanism comprises a compacting roller shaft with radially-extending roller fingers and a roller finger position detecting mechanism. According to the bottom soil compacting device of the rice seedling precisely-raising planter, the travel of seedling trays and the roller fingers are limited, the limit travel switch, the tray feeding travel switch and a roller finger position detector control seedling tray feeding and the positions of the finger rollers respectively, meanwhile, the linear speed and the rotation direction of the compacting roller shaft are identical to the seedling tray conveying speed and the seedling tray conveying direction of the seedling tray conveying mechanism, so that when the seedling trays move to the positions of the roller fingers, the roller fingers can be accurately inserted into the holes of the seedling trays to compact soil. The bottom soil compacting device of the rice seedling precisely-raising planter is reliable in operation, high in efficiency and wide in market application and popularization prospect.

Description

technical field [0001] The invention relates to a rice seedling raising and seeding machine, in particular to a subsoil compacting device of a rice precision seedling raising and seeding machine. Background technique [0002] Industrial rice seedling raising is an important link in the mechanized rice production process, which mainly includes processes such as subsoil covering, seeding, topsoil covering, water spraying and compaction. Covering subsoil and topsoil is very important in seedling production, and the thickness of subsoil and topsoil will affect the quality of seedlings. With the continuous improvement of rice seedling raising technology, especially the promotion of super rice seedling raising technology, the requirements for subsoil covering technology and subsoil thickness control are also getting higher and higher. When planting hole seedlings in the seedling tray, in order to ensure that the root system of the hole seedlings in the seedling tray is concentrat...

AI Technical Summary

Problems solved by technology

However, there is a common problem that it is impossible to ensure that the compaction roller can be pressed into the hole of the seedling tray exactly every time.

In addition, the seedling tray can only be used with a special seedling raising machine, and cannot be used in common with other seedling raising machines, that is, a compacting device can only be used for compacting soft seedling trays or hard seedling trays. Changes are made to the mechanism, and even the transmission system

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