Transplanter

Abstract

The present invention provides a transplanter which is provided with the following components: a body which is provided with driving wheels; a plating tool which is equipped on the body and plants the planting object; a lifting device which causes the body to lift relative to the driving wheels; a lifting conversion part which converts lifting action of the lifting device; a middle connecting part which is connected with the lilfting conversion part; two grounding members which are configured at the left side and the right side and respectively move vertically through grounding with a farmland surface and rotation of a grounding member rotation shaft that extends in a left-and-right direction correspondingly to height change of the farmland surface; a cantilever which is connected with the two grounding members at a position that is higher than the grounding member rotation shaft and has a position that changes correspondingly with vertical movement of the two grounding members; and an interlocking arm which rotates around the grounding member rotation shaft. One part of the interlocking arm is connected with the cantilever at the central position of each connection part between the cantilever and the two grounding members, and the other part is connected with the middle connecting part at the position that is higher than the grounding member rotation shaft. The transplanter can perform stable body lifting control when soil block exists in farmland.

Description

technical field [0001] The present invention relates to a transplanting machine for transplanting seedlings or seed potatoes into farmland. Background technique [0002] Hitherto, the height of the body relative to the field surface has been controlled to plant seedlings at a predetermined planting depth by associating the action of a grounding sensor that is grounded on the field surface with a hydraulic switching valve that lifts the body (for example, refer to Patent Document 1 ). [0003] The seedling transplanting machine described in Patent Document 1 is mainly equipped with an engine, a main transmission case, a pair of left and right front wheels and a rear wheel as running wheels in the front part of the vehicle body, and a seedling planting device, a seedling supply part, and a soil cover in the rear part. Ground pressure wheels and joysticks. This seedling transplanting machine drives the front and rear wheels between the ridges in such a way that the body spans...

AI Technical Summary

Problems solved by technology

[0014] However, in the structure of the height of the control body relative to the farmland surface of the above-mentioned existing seedling transplanting machine, there is the following problem: when there is a soil block on the ridge, the height of the control body cannot be properly raised and lowered.

[0015] That is, the above-mentioned existing seedling transplanting machine is due to the structure of utilizing a single grounding sensor to detect the farmland surface, so when there is a clod on the ridge where the seedling transplanting machine travels, the grounding sensor detects the clod, and it is judged that from the body to the ground. The distance between farmland faces is reduced

As a result, in this case, the rear wheel is pressed down and the body is raised, so the planting of seedlings becomes shallow.

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