Box shifting mechanism matched with row spacing adjustable transplanter

Abstract

The invention discloses a box shifting mechanism matched with a row spacing adjustable transplanter, which relates to the technical field of transplanters. A drive screw mandrel in the box body is provided with two head-to-head thread grooves which are opposite in phase; the drive screw mandrel is connected with driving nuts matching the two thread grooves; each driving nut is provided with a connecting hole which is parallel to the axial direction of the drive screw mandrel; and a box shifting rod in the box body is fixedly connected in the connecting hole of the driving nut. The invention is characterized in that the drive screw mandrel is detachably connected with a guide arc piece which can form a continuous part with the intersected part of the two thread grooves, and the guide arc piece is provided with a thread groove. The guide arc piece can be replaced conveniently, and the shifting distance of the driving nut on the drive screw mandrel can be changed by replacement of different guide arc pieces, thus realizing of changing the reciprocating stroke of box shifting. The invention has the advantages of simple and reasonable structure, convenient production, convenient use and easy replacement, and can change the reciprocating stroke of the driving nut.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to the technical field of rice transplanters. Background technique [0002] The row spacing of rice transplanter is all fixed at present, is generally 30cm, and this row spacing fixed type rice transplanter can not be suitable for the paddy planting system of my country's diversification. In addition, the soil fertility varies greatly across my country. Choosing different close planting systems according to the soil fertility is also an important measure to increase rice yield. [0003] At present, in terms of varieties, hybrid rice requires wide rows and large plant spacing; japonica rice requires narrow rows and small plant spacing; in terms of planting system, double-cropping rice requires dense planting, and single-cropping rice requires sparse planting; in terms of geography, the south is sparsely planted. , dense planting in the north; as far as time is concern...

AI Technical Summary

Problems solved by technology

[0003] At present, in terms of varieties, hybrid rice requires wide rows and large plant spacing; japonica rice requires narrow rows and small plant spacing; in terms of planting system, double cropping rice requires close planting , single-season rice requires sparse planting; in terms of region, it is sparsely planted in the south and densely planted in the north; A new model of mechanized rice transplanting with adjustable row spacing that can adapt to both Chinese super hybrid rice and conventional rice, as well as southern double-cropping rice is imminent

However, it is a difficult problem to adjust the box-moving stroke of the rice transplanter with adjustable row spacing.

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