Lifting control device for planting unit of full-automatic transplanting combined operation machine

Abstract

The invention discloses a lifting control device of a planting unit of a full-automatic transplanting combined operation machine. The lifting control device comprises a lifting oil cylinder and a ground profiling system, wherein the lifting oil cylinder is connected with a hydraulic system, and a valve group is arranged on a connecting pipeline for the lifting oil cylinder and the hydraulic system and is fixed to a mounting support. The lifting control device is characterized in that the ground profiling system comprises a profiling mechanism and a transmission mechanism; the profiling mechanism comprises a sensing wheel, a movable support and a fixed support, and the transmission mechanism comprises a pull wire, a movable lug, a pull lug and the like. The lifting control device of the planting unit of the full-automatic transplanting combined operation machine carries out active control based on passive sensing. Compared with an existing active control profiling system, the lifting control device is low in manufacturing and use cost, easy to maintain and stable in operation in a working state; compared with an existing passive profiling system, shake transmitted to the planting unit by sudden terrain change can be reduced through structural optimization, mechanical damage is avoided, and meanwhile the lifting control device has a good profiling effect.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a lifting control device for a planting unit of a fully automatic transplanting combined operation machine. Background technique [0002] During the working process of the combined operation machine, after the soil turning and shaping by the front mechanism, the ground contacted by the planting unit is generally relatively flat, but in order to prevent accidents, the raised ground surface will not cause collision damage to the planting mechanism; or in order to adapt to slopes The changing ground makes the planting depth of the seedlings consistent. The existing combined operation machine will be equipped with a ground profiling system to make the height of the planting unit change with the terrain to ensure the safe operation of the operation machine and improve the quality of work. [0003] The profiling system of existing agricultural machinery includes passive ...

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Problems solved by technology

[0003] The profiling system of the existing agricultural machinery includes passive adjustment (passive induction, profiling control) and active adjustment (active induction, active control). The induction device supports the operating mechanism so that the height of the operating mechanism can change with the terrain, but the induction device and the operating mechanism are usually rigidly connected, which will directly transmit the vibration generated by the terrain change, which is easy to damage the machine, and the profiling accuracy is not high; implementation Actively adjusted combined operating machines generally actively collect terrain information through multiple sensors, and the control system analyzes the terrain based on the feedback data of the sensors, and then controls the driving device to adjust the height of the operating mechanism. However, when working in the field, precision devices in open spaces It is not easy to maintain, and the manufacturing and maintenance costs of this implementation are high

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