Control method of rotation of excavator working device

A technology of working device and control method, which is applied to mechanically driven excavators/dredgers, etc., can solve problems such as poor control effect and jitter, and achieve the effect of overcoming jitter, smooth rotation control, and good braking effect.

Active Publication Date: 2015-05-13
LIUZHOU LIUGONG EXCAVATORS +2
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  • Abstract
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a control method for the rotation of the working device of th

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  • Control method of rotation of excavator working device
  • Control method of rotation of excavator working device
  • Control method of rotation of excavator working device

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Embodiment Construction

[0013] Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail:

[0014] figure 1 As shown in the control method for the rotation of the excavator working device, three-way inclination sensors are set at the working device of the excavator, and two-way pressure sensors are set at the bucket cylinder, and these sensors are connected with the excavator master controller; When the excavator rotates, the control signal S1 of the target speed of the excavator master controller is input through the displacement stroke of the operating handle, and the signal S2 detected by the inclination sensor and the signal S3 detected by the pressure sensor are transmitted to the excavator master controller at the same time; The excavator master controller calculates the total moment of inertia of the excavator according to the control signal of the target speed and the real-time information of these sensors, outputs the driving signal for a...

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Abstract

The invention discloses a control method of rotation of an excavator working device and belongs to the technical field of engineering machines. According to the method, at least three paths of tilt angle sensors are arranged at the rotation position of the excavator working device, two paths of pressure sensors are arranged on a bucket oil cylinder, and the sensors are connected with an excavator main controller. When an excavator rotates, the displacement travel of an operating handle is input to a control signal of the target rotating speed of the excavator main controller, meanwhile, and signals detected by the sensors are transmitted to the excavator main controller; the excavator main controller calculates the rotating inertia of the excavator according to the control signal of the target rotating speed and real-time information of the sensors, a driving signal for adjusting the torque of a driving motor is output, and stable movement of the excavator working device under different kinds of rotating inertia is controlled. Through the control method of rotation of the excavator working device, the problems that in the working process of the excavator working device, the control effect is poor, and shaking happens can be solved.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to a control method for the rotation of a working device of an excavator. Background technique [0002] The current control method for the rotation of the working device of the hybrid excavator is to push the rotary handle and input the displacement signal of the rotary handle to the excavator's general controller, and the excavator's general controller determines the target of the motor according to the displacement of the rotary handle. Rotation speed, and then use a pre-determined average moment of inertia as a reference, regardless of the change of the rotary device moment of inertia when the working device changes, it takes the difference between the real-time speed and the target speed as the discriminating condition, adjust the speed through the PID algorithm, and then adjust Output torque, so as to drive the motor to run to the target speed. This control meth...

Claims

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Application Information

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IPC IPC(8): E02F3/43
Inventor 胡恒戴群亮韦赞洲唐妍
Owner LIUZHOU LIUGONG EXCAVATORS
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