Boom-type roadheader autonomous speed regulation cutting control system

ZHANG Xuhui; SHI Shuo; YANG Hongqiang; YANG Wenjuan; ZHANG Chao; WANG Tian

doi:10.13272/j.issn.1671-251x.2022110066

Volume 49 Issue 1

Feb. 2023

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Journal of Mine Automation > 2023 > 49(1): 80-89. > DOI: 10.13272/j.issn.1671-251x.2022110066

ZHANG Xuhui, SHI Shuo, YANG Hongqiang, et al. Boom-type roadheader autonomous speed regulation cutting control system[J]. Journal of Mine Automation，2023，49(1)：80-89. DOI: 10.13272/j.issn.1671-251x.2022110066

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Boom-type roadheader autonomous speed regulation cutting control system

1.
College of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
2.
Shaanxi Key Laboratory of Mine Electromechanical Equipment Intelligent Monitoring, Xi'an 710054, China

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Received Date: November 15, 2022
Revised Date: January 09, 2023
Available Online: January 16, 2023

Abstract

Abstract

The existing boom-type roadheader cutting control adopts a relatively simple control method and the cutting head completes the roadway section cutting at a constant speed. There's no comprehensive consideration of trajectory planning and autonomous speed control. Therefore, it is difficult to achieve high roadway engineering quality under complex geological conditions. In order to solve the above problems, a boom-type roadheader autonomous speed regulation cutting control system is proposed. Firstly, the three-dimensional model of the cutting head and coal seam are established and imported to ABAQUS software for finite element analysis. The relationship between the reaction force on the cutting head and the swing speed of the cutting arm is obtained. Then the relationship between the swing speed of the cutting arm and the acceleration of the cutting head is obtained. The acceleration is stratified by k-means clustering method. Secondly, the collision detection model of the cutting head is established by using the bounding volume hierarchy algorithm. The appropriate cutting trajectory of the rectangular roadway section is planned. The discrete cutting path planning points are generated through multiple discretizations. The inverse kinematics solution of the cutting arm is calculated to obtain the rotation radian, lifting radian and elongation of the cutting arm required for the cutting head to reach the discrete cutting path planning point. The global optimal speed model is used to solve the speed of the cutting head to move to the discrete cutting path planning point. Finally, the acceleration sensor is used to collect the vibration signal of the cutting arm. The target swing speed of the cutting arm is determined according to the acceleration layering result. Through fuzzy PID control, the swing speed of the cutting arm is adjusted to the target swing speed in time and accurately with the change of the cutting head acceleration. The experimental results show that the fuzzy PID control can achieve a relatively fast and non-overshoot swing speed adjustment of the cutting arm. Compared with the constant speed cutting control, the roadway section forming quality using the autonomous speed control cutting control is high. The width specification deviation is reduced by 37%, and the height specification deviation is reduced by 17%. The results meet the requirements of roadway forming quality specified in MT/T 5009-1994 Standard for quality inspection and assessment of coal mine roadway engineering.
- boom-type roadheader,
- intelligent cutting control,
- cutting arm,
- autonomous speed regulation,
- autonomous cutting control,
- roadway section forming

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References

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WANG Tian

1.
College of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China

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Boom-type roadheader autonomous speed regulation cutting control system