An automatic leveling system and control method for working tools

Abstract

The invention discloses an automatic leveling system for an operating machine and a control method of the automatic leveling system. The automatic leveling system comprises an inclined-angle detecting sensor module, a displacement detection sensor, an executing module and an automatic leveling control module, wherein the executing module comprises the operating machine, a rotating mechanism and a stretching mechanism; the operating machine is connected with an agricultural machinery vehicle body through the rotating mechanism; the stretching mechanism is arranged in an inclined form relative to the operating machine; the stretching end of the stretching mechanism is connected with the operating machine; the inclined-angle detecting sensor module is arranged on the agricultural machinery vehicle body and is used for detecting an inclined motion signal of the agricultural machinery vehicle body; the displacement detection sensor is arranged on the stretching mechanism and is used for detecting a linear displacement of the stretching mechanism on an adjusting position; the inclined-angle detecting sensor module, the displacement detection sensor and the stretching mechanism are respectively connected with the automatic leveling control module. The automatic leveling system and the method provided by the invention can ensure the accurate and stable control on the operating machine so as to achieve an accurate operating purpose.

Description

technical field [0001] The invention relates to an automatic leveling system, in particular to an automatic leveling system for working tools and a control method thereof, belonging to the field of intelligent agricultural machinery. Background technique [0002] Most of the modern agricultural machinery requires that the work tools should be kept parallel to the surface of the work object. At present, most of the agricultural machinery on the market still use the traditional profiling operation method. Only a small number of agricultural machinery can realize the control of the height direction of the working tool, but it cannot achieve the horizontal control. However, in actual operations, due to factors such as uneven fields and different depths of mud feet, it is easy to cause the left and right wheels to not be at the same horizontal position. balance, resulting in the job failing to meet the scheduled requirements. For example, the bottom of most paddy field plows is...

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Problems solved by technology

In order to realize the level control of the grader, the invention patent with the Chinese patent No. 200810028328.9 discloses a level control system and its control method of the grader. A sensor system is installed on the grader to sense the horizontal inclination of the grader and the rate of change of the inclination. To calculate the horizontal inclination angle of the shovel to control the level of the shovel. In practical applications, this method is affected by the movement of the shovel, which makes it difficult to accurately detect the inclination angle of the shovel, and there are high requirements for the installation of the sensor system, and the sensor system and control system are easy to detect. water problem

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