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- Autors
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Avrunin G. A., Pimonov I. G., Zherelii O. I., Kapustina K. V.
- Issue
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Hoisting and transport equipment, 2020, №2(63)
- Pages
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58-80
- DOI
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10.15276/pidtt.2.63.2020.06
- Abstract
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Research of dynamic processes in by volume hydraulic drive of rotation a grader to the dump during his starting is an actual task, so as she is sent to the decline of pressure and frequency of rotation that gives an opportunity of decline of the dynamic loading of hydraulic drive and increase of longevity of axial piston hydromotor as the most ponderable at price hydraulic unit fluctuations. The modes of loading of by volume hydraulic drive are investigational, that reduce pressure and velocity of circulation of hydromotor fluctuation during his starting and to offer engineering solution for practical realization in the hydraulic fundamental chart of motor-grader. The analysis of the applied and perspective hydraulic units is driven to by volume hydraulic drive of motor-grader of model of DZk250В. To find the decision of aim of the advanced study in the real construction of by volume hydraulic drive motor-grader with a axial piston hydromotor, that must create a twisting moment no less than 70 Н.м and frequency of rotation of to 700 min- 1.During work methodologies of research of analytical methods of static and dynamic calculations were used on the basis of mathematical model in that equalization of unbreak and Pascal's law are included for a working liquid, and also laws of mechanics of Newton. Nonlinear differential equalizations are untied by means of application of VisSim package with further application of design of work of hydraulic drive on the starting mode of hydromotor. Job performances are useful to the specialists that engage in planning and modernisation of motor-graders. Increasing the pressure can reduce the size and weight of a number of hydroprints, in particular, reduce the working volume of the motor of the rotary grader blade. Such work is executed first.
- Keywords
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motor-grader, by volume hydraulic drive, axial piston hydromotor, mathematical model, dynamics of hydraulic drive, package of softwares of VisSim
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