Excavator bucket follow-up control system and method

Abstract

The invention discloses an excavator bucket follow-up control system and method. The system comprises a movable arm oil cylinder and a bucket rod oil cylinder which are arranged on an excavator, the movable arm oil cylinder is connected with a movable arm, the end of the movable arm is connected with a bucket rod, the top of the bucket rod is connected with the bucket rod oil cylinder, the bottomof the bucket rod is connected with a bucket, and one side of the bucket rod is provided with a bucket oil cylinder. A vehicle-mounted controller and a hydraulic valve group are arranged on the excavator, an operating handle is arranged in a cab of the excavator, a vehicle speed sensor is arranged on a driving transmission chain of the excavator, an inclination angle sensor is connected to the bucket, and the inclination angle sensor, the vehicle speed sensor and the operating handle are all connected with the vehicle-mounted controller. The hydraulic valve group is connected with the movablearm oil cylinder, the bucket rod oil cylinder and the bucket oil cylinder. When the excavator transfers materials and runs, the bucket is controlled to be leveled in a follow-up manner according to the inclination angle of the bucket, hysteresis quality and leveling deviation caused by experience-based leveling are reduced, material scattering is reduced, and operation efficiency is improved.

Description

technical field [0001] The invention relates to a follow-up control system and method, in particular to an excavator bucket follow-up control system and method. Background technique [0002] An excavator is an earth-moving machine that uses a bucket to excavate materials such as soil, coal, and sand, and transfers the materials to stockyards, transport vehicles, etc. The bucket is the key device for the excavator to excavate and transport the material. In the prior art, after the material is excavated, the driver of the excavator relies on observation and operating experience to control the working devices such as the bucket cylinder and the stick cylinder through the joystick, and adjust the level. The bucket makes it difficult to spill during material transfer. [0003] But there are two deficiencies in the prior art scheme: one, before the excavator travels after the bucket excavates the material, control the working devices such as the bucket oil cylinder and the stick ...

AI Technical Summary

Problems solved by technology

[0003] But there are two deficiencies in the prior art scheme: one, before the excavator travels after the bucket excavates the material, control the working devices such as the bucket oil cylinder and the stick oil cylinder by the joystick, and level the bucket. 1. Observation of visual errors, etc. The leveling of the buckets varies greatly, and the operation process is complicated; 2. When the excavator is driving after the bucket excavates the material, the bucket will tilt due to the uneven road surface of the excavator, causing the material to spill

To sum up, the existing technology has high requirements on excavator driver skills, complicated operation, and serious material spillage, which restricts the use efficiency of excavators.

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