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Control method of excavator working device rotation

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

Active Publication Date: 2017-01-11
LIUZHOU LIUGONG EXCAVATORS +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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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 the excavator, which can solve the problem of poor control effect and vibration of the working device of the excavator during the working process

Method used

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

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Embodiment Construction

[0013] The present invention will be described in further detail below in conjunction with accompanying drawing embodiment:

[0014] figure 1 In the control method for the rotation of the working device of the excavator shown, three-way inclination sensors are installed at the working device of the excavator, and two-way pressure sensors are set at the bucket oil cylinder, and these sensors are connected with the general controller of the excavator; 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 at the same time, the signal S2 detected by the inclination sensor and the signal S3 detected by the pressure sensor are transmitted to the excavator master controller; The general controller of the excavator 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 sensor...

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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 engineering machinery, in particular to a method for controlling the rotation of an excavator working device. Background technique [0002] The current control method for the rotation of the working device of the hybrid excavator is to input the displacement signal of the rotary handle to the general controller of the excavator by pushing the rotary handle, and the general controller of the excavator determines the target of the motor according to the displacement of the rotary handle. Rotational speed, and then take a pre-determined average moment of inertia as a reference, regardless of the change in the moment of inertia of the slewing device when the working device changes, it uses the difference between the real-time speed and the target speed as the discrimination condition, adjusts the speed through the PID algorithm, and then adjusts Output torque to drive the motor to reach the target speed. Thi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02F3/43
Inventor 胡恒戴群亮韦赞洲唐妍
Owner LIUZHOU LIUGONG EXCAVATORS
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