rice transplanter

Abstract

The invention provides a transplanting machine, which is capable of rightly making one end of a seedling carrying platform (41) along the width direction close to one end aligned with the position of a planting mechanism (119) using a simple structure. The end closing of the seedling carrying platform (41) is started by switching a planting clutch mechanism (55) to a power transfer turn-on state. The planting clutch mechanism (55) is switched to a power transfer turn-off state to end the end closing of the seedling carrying platform by mounting a seedling platform position detection switch (69) on a seedling platform frame (49) of the seedling carrying platform.

Description

technical field [0001] The invention relates to the technology of a rice transplanter, in particular to the technology of moving a seedling-carrying platform to the end of the seedling platform. Background technique [0002] Generally, the transplanting operation of the rice transplanter is as known in the past, and the seedling loading platform on which the seedling mat is placed is intermittently fed laterally at an appropriate width interval, and the planting mechanism separates the seedlings of the appropriate width from the seedling loading platform. And plant to farmland, thereby at the beginning of this seedling transplanting operation, need at least one end of the width direction of each seedling-carrying platform and described planting mechanism position alignment such end close (send せ). [0003] Patent Document 1, which is a prior art, proposes the following structure: "By operating the planting clutch mechanism to power transmission ON (ON) with respect to the pl...

AI Technical Summary

Problems solved by technology

[0012] However, in the prior art of Patent Document 1, an interlocking mechanism such as a cam that operates when the seedling loading platform reaches a predetermined end close position, and a cable that transmits the motion of the cam to the planting clutch is required. The structure is complex and the number of parts is significantly increased, which not only leads to an increase in cost, size, and weight, but also causes frequent contact of other items with the cam and the linkage mechanism, which leads to problems that are prone to failure and misoperation

[0013] In addition, in the prior art described above, when starting to approach the ends of the seedling loading platform, it is necessary to stop the forward running of the rice transplanter and raise the planting part as the precondition operation, but these previous operations are ignored and the end is carried out. close together, there will be problems such as damage to the planting mechanism and the seedling-carrying platform.

[0014] On the other hand, in the prior art of Patent Document 2, although the ends of the seedling loading table can be brought together from the state in which the planting section has been raised and raised, the operator must visually check the planting section in a backward posture. To confirm whether the seedling-carrying platform has reached the specified end close position, on this basis, by operating the planting lifting lever to the neutral position, the planting clutch mechanism is cut off for power transmission, and the process ends. The end close-up of the above-mentioned seedling loading platform requires manual operation for the end close-up, so not only cannot realize complete automation, but also has low operability and precision of end close-up due to the end close-up through visual inspection and manual operation. The problem

[0015] In the prior art of Patent Document 3, after the seedling loading platform reaches the end position of the seedling platform, the planting clutch is turned "off", so that when the operation of the planting clutch is delayed, for example, when the planting clutch is activated by a motor, etc. , the cutoff of power is delayed, and the Zai Miao platform will overspeed

In addition, when the seedling loading platform is moved at a high speed, the inertial force acting on the seedling loading platform similarly causes the above-mentioned seedling loading platform to overspeed.

Moreover, when the seedling mat is set in the state of excessive speed of the seedling loading platform, it will cause the plant to be defective.

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