The energy optimization of the process of digging ground by excavator equipped with telescopic working equipment

Authors

  • O. O. Dakhno Department of Building and road machines. State Higher Education Establishment “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24-A, Chernishevskogo str., Dnipropetrovsk 49600, Ukraine, Ukraine

Keywords:

Excavator, telescopic working equipment, energy optimization, digging of ground

Abstract

Summary.  Raising of problem.  Production of excavation associated with a number of specific features,  which restrict the full use of the technological possibilities of the  working equipment, single-bucket hydraulic excavator and the  efficient  use  of  earth-moving  equipment.  Thus,  it  becomes  necessary  to  to  change  the  working  trajectory  of movement the working body in the course excavation.  Traditional working equipment has a  narrow range of variation of geometrical parameters. In this regard, there is need to expand the technological capabilities of the excavator working equipment due to the possibility of the active changing the geometric parameters of working equipment in th e process of  excavation,  which  helps  to  adapt  the  thickness  of  the  shavings  cut  ground  to  the  properties  of  the  corresponding category of ground.  A wide range of changes in the geometric parameters of the working equipment can be achieved using of the telescopic working equipment, which allows you to smoothly and highly accurately change the geometrical and power parameters of the equipment, as well as use a wide range of interchangeable working bodies . The purpose of the article. To develop an optimization mathematical model to determine the optimal thickness of cut shavings in terms of  sustainability  and  the  maximum  possible  effort  at  the  cutting  edge  of  the  bucket  when  digging  excavator  with variable  geometric  parameters  of  the  working  equipment,  in  which  the  change  of  parameters  is  due  to  the  use  of telescopic boom and arm mechanisms.  Conclusion.  Presented the optimization mathematical models to determine the maximum thickness cut a shaving while digging by telescopic working equipment of excavator have allowed to achieve modeling  a  given  category  of  ground  maintaining  constant  value  ground  resistivity  digging  through  the  ground  a shaving  thickness  adjustment  while  ensuring  the  maximum  stability  and  digging  force.  Submitted  the  optimization graphics for the motion on gradient calculated trajectory of thick ground a shaving to change ordinates hinge attachment the handle changes the length of the telescopic boom and changing the length of a telescopic the handle changes turning angle  of  the  telescopic  the  handle  indicate  correct  models.  Implementation  and  use  of  the  mathematical  model  will reduce energy consumption of the process and increase productivity digging excavator.

Author Biography

O. O. Dakhno, Department of Building and road machines. State Higher Education Establishment “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24-A, Chernishevskogo str., Dnipropetrovsk 49600, Ukraine

postgraduate

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Published

2016-04-26

Issue

Section

Lifting and transport, construction and road machines and equipment