A round baler feed port opening adaptive control system and its control method

Abstract

The invention provides an adaptive control system and control method for the opening of the feeding port of a round baler, including a feeding device, a rotary encoder, a displacement sensor, a hydraulic adjustment system and a controller; the input ends of the controller are respectively connected to the The rotary encoder, displacement sensor, oil pressure sensor 1 and oil pressure sensor 2 are electrically connected, and the output end is electrically connected to the electromagnetic reversing valve through an interlock controller; and the rate of change of rotational speed as the input, and the position of the piston rod as the output, establish a fuzzy control model for the opening of the feeding opening of the feeding device, and control the piston rods of the left cylinder and the right cylinder through the three-position four-way electromagnetic reversing valve The active adjustment of the extension and retraction under the hydraulic drive realizes the self-adaptive control of the opening of the feeding opening, reduces the instability of the bundling performance caused by the uneven feeding amount, and avoids the blockage of the feeding knife roller caused by the sudden increase of the feeding amount. , Improve the working life of the feeding parts, the working efficiency and reliability of the whole machine.

Description

technical field [0001] The invention belongs to the technical field of baler automatic control, and in particular relates to an adaptive control system and a control method for the opening of a feed port of a round baler baler. Background technique [0002] The baler can collect loose crop stalks, pastures, etc. into compact shapes for storage and transportation, and is the key equipment for large-scale comprehensive utilization. According to the different shapes, it can be divided into square baling and round baling machines. The round baling machine picks up the materials from the ground through the spring teeth of the picker, sends them into the baling chamber through the feeding device, and continuously rotates to form Round bales, widely used on farms and ranches. [0003] The feeding device of the round baler is mainly composed of a feeding knife roller and a lower jaw plate. Its function is to pre-compress the picked up materials and force them into the baling chambe...

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