Mechanical Loader Work Process Analysis And Study Work Track

Loader in modern society has been applied to a variety of construction in the face of increasingly serious environmental pollution of today, people loaders made more energy efficient design requirements. Throughout the entire operation and the loader cycle, power shovel loading process the most, while energy consumption is mainly consumed in the shovel during the operation of the working medium loaders reaction. Thus, the control to reduce the loading shovel loaders resistance during the operation, to explore suitable job track is one of the ways to achieve energy efficient loader bucket. Get accurate loading shovel resistance during the job and working track to achieve this way, this article is for engineering jobs resistance shovel basic theory and operating trajectory is studied as a control to reduce the resistance of the job reserves data base design.1. This first calculation method by taking into account the traditional empirical formula, dense core principles such as loader work during operation resistance, the resistance force Loader job abstraction into three centralized force to consider, in the analysis of this ADAMS loader jobs resistance and a hinge point, the forces operating cylinder theory. This part of the rationality of the shovel loader mounted structure made evaluation and follow-up access to the loader bucket motion parameters to provide evidence.2. This distinct element method(DEM) for material properties loader bucket shovel the material for analysis. Hertz-Mindlin contact model using DEM of rock material and loader bucket material(iron) to explore the theory, the use of experimentally obtained coefficient of static friction between the rock and the rock between the device body and the coefficient of restitution, and EDEM software to use a "virtual experiment the angle of repose," and the reality of cylindrical- angle of repose test mutual calibration method to obtain the coefficient of rolling friction between the rock and the rock and the apparatus body between the contact thus obtained between the parameters of all the materials. This part of the follow-up of rock material accuracy of the heap established to provide a basis for the job when loading shovel loaders resistance accuracy provided a guarantee.3.Use programming method Read ADAMS speed parameter in the bucket and use EDEM on the external function API to correlate these parameters to EDEM speed, the trajectory of the loader bucket to make provision, the bucket can be achieved complex motor behavior. And obtained from the EDEM obtained loader bucket force feedback to ADAMS, make the loader shovel means multibody dynamics explored to achieve a joint simulation of ADAMS-EDEM.4. Get a job data base resistance on the basis of this article will be applied to the design of the bucket strength, explores the EDEM-FEM unidirectional coupling embodiment. The loader bucket mesh using bucket motion parameter of the third part of the loading shovel EDEM a rock pile, get a bucket on the power unit, input into the finite element software for finite element analysis, so that limited yuan can load scattered strength, so as to obtain a more accurate external load, analyze bucket deformation strain.