A control method for cutting trajectory of a rock-breaking chain saw machine based on virtual simulation

By using virtual simulation technology to precisely control the cutting trajectory of chainsaw machines, the problem of inaccurate cutting trajectories of chainsaw machines has been solved, improving the accuracy and efficiency of tunnel construction.

CN115906257BActive Publication Date: 2026-06-09CHINA RAILWEY ENG SERVICE CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA RAILWEY ENG SERVICE CO LTD
Filing Date
2022-12-06
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In existing technologies, the cutting trajectory control of chainsaw machines is not precise, leading to over-excavation and under-excavation during tunnel construction, which fails to meet construction requirements.

Method used

A virtual simulation-based method was used to perform motion simulation analysis on the cutting process of a chainsaw. The process involved modeling with 3D design software, performing motion simulation and data fitting with virtual simulation software, solving for key control parameters, and achieving precise control of the chainsaw cutting trajectory.

Benefits of technology

It improved the construction precision of chainsaw cutting, reduced the area of ​​over-excavation and under-excavation, ensured the efficiency and outline quality of tunnel excavation, and achieved precise control of tunnel construction.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN115906257B_ABST
    Figure CN115906257B_ABST
Patent Text Reader

Abstract

The application provides a control method for cutting track of a rock breaking chain saw machine based on virtual simulation, and the method comprises the following steps: analyzing a construction process of cutting a tunnel face by the rock breaking chain saw machine, and determining a target step to be controlled in the construction process; dividing a swing arm speed of a chain arm into multiple swing arm speed values, simulating movement of the rock breaking chain saw machine in the target step at each swing arm speed value, and determining a speed curve of linear movement of a walking platform in a full stroke; fitting each speed curve to obtain a relationship between linear movement speed of the walking platform and time at different swing arm speed values; fitting multiple target parameters for realizing coordinated control of the swing arm speed and the walking speed; and controlling a cutting track of the rock breaking chain saw machine by each target parameter obtained through joint solving. The method can obtain key control parameters for coordinated control of the chain saw machine, and realizes accurate control of the cutting track of the chain saw machine.
Need to check novelty before this filing date? Find Prior Art