Sectional pressure set value optimization method of hydraulic propelling system of heading machine

A technology of propulsion system and optimization method, applied in mechanical equipment, fluid pressure actuation device, mining equipment, etc., can solve the problems of large error, low efficiency, dependence, etc., and achieve the effect of solving the problem of trajectory tracking

Inactive Publication Date: 2015-07-08
SHANGHAI JIAO TONG UNIV
View PDF6 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the operation of roadheaders in the construction process largely depends on engineering personnel, which has some shortcomings such as low efficiency and large errors.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sectional pressure set value optimization method of hydraulic propelling system of heading machine
  • Sectional pressure set value optimization method of hydraulic propelling system of heading machine
  • Sectional pressure set value optimization method of hydraulic propelling system of heading machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] Taking the excavation trajectory control of the excavation machine as an example, the optimization of the pressure setting value of the hydraulic propulsion system of the excavation machine provided by the present invention is described in detail.

[0047] The symbols appearing in the drawings and some formulas and the physical quantities represented by the symbols are shown in Table 1:

[0048] Table 1

[0049]

[0050]

[0051] Such as figure 1 As shown, two coordinate systems are used when building the dynamic model of the roadheader: geographic coordinate system and fuselage coordinate system. O-xyz represents the fuselage coordinate system, and O'-x'y'z' represents the geographic coordinate system. The geographic coordinate system is usually considered an inertial coordinate system.

[0052] Such as figure 2 As shown, the hydraulic cylinders of the hydraulic propulsion system of the roadheader are evenly distributed in the shield head, and the hydraulic ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a sectional pressure set value optimization method of a hydraulic propelling system of a heading machine. The method comprises the steps of dividing the hydraulic cylinder of the hydraulic propelling system of the heading machine into N sections, calculating the resultant force and the resultant moment provided by the hydraulic cylinder in each section by use of a linear quadratic form regulator, and obtaining the optimized resultant force provided by the hydraulic cylinder in each section by virtue of quadratic programming, thereby obtaining the hydraulic cylinder pressure set value in each section. According to the sectional pressure set value optimization method of the hydraulic propelling system of the heading machine, the hydraulic cylinder of the hydraulic propelling system of the heading machine is divided into N sections, the pressure set value of the hydraulic cylinder in each section is the same and the control on the hydraulic propelling system is simplified; the resultant force of each section is optimized by virtue of quadratic programming so as to realize excellent tracking capability of main trajectory of the heading machine; the linear quadratic form regulator is combined with a conventional controller to further improve the trajectory tracking capability.

Description

technical field [0001] The invention relates to a method for optimizing the setting value of the partition pressure of a hydraulic propulsion system of a roadheader, in particular to a method for optimizing the setting value of the propulsion pressure of each partition of the hydraulic system of the roadheader. Background technique [0002] Full-face hard rock tunnel boring machine (Tunnel boring machine, TBM) is a large-scale modern equipment, which integrates electrical, hydraulic, mechanical and control, and is specially used for tunnel excavation in rocky environment. There is no doubt that the full-face hard rock tunnel boring machine is by far the most promising and competitive method of underground space excavation and utilization. The tunnel boring machine has the advantages of fast excavation speed, relatively low cost, high safety, high reliability, little impact on the surrounding environment and high automation, so it has become an important tool for underground ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/02E21D9/10
CPCE21D9/10F15B11/02
Inventor 王景成刘华江张浪文石伟晶胡涛乐文华
Owner SHANGHAI JIAO TONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap