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The Design And Performance Reach On Energy-absorbing Equipment For Tramcar Arresting Gear

Posted on:2010-02-02Degree:MasterType:Thesis
Country:ChinaCandidate:N ZhangFull Text:PDF
GTID:2121360272496297Subject:Mechanical and electrical engineering
Abstract/Summary:PDF Full Text Request
Coal is the basic energy of our country. China's coal industry has developed rapidly after the founding of the reform and opening up. The rapid growth of coal production has laid a necessary material foundation for the sustained economic and social development. Although China's coal production and the technology of equipment continue to improve, but there is an obvious gap with the whole world's advanced level. During the coal mine production mine transport incidents often happene,which is because of overloading, neglect, misuse and other reasons. Uncontrolled tramcar may result in equipment damage, production interruption. In order to prevent loss of control of the incident, anti-roadster device has become an indispensable safety facilities.This article first introduces roadster protective devices applications, development, clarified the thesis of the research background and significance. Flexible protection system for uncontrolled-tramcar requireme【nts and characteristics of the work, clearly the energy absorption device is a flexible system implementation system to intercept the key. The device performs at the time of the collision happen,which converts kinetic energy to other forms of energy, which reached down to stop the device tramcar. Protection system is able to effectively achieve gentle interception, whether or not to be able to intercept tramcar and devices to minimize the damage, depends entirely on the energy absorption device performance. Reading to collect the relevant information, both domestic and abroad on the current maturity of the technology protection system for uncontrolled-tramcar energy absorption devices have a better understanding, whether it is widely used in the domestic steel wire rope, or energy absorption device common in foreign countries Zelda energy absorption and energy absorption Lang Lee, and their common characteristics of energy absorption of materials through friction, tensile deformation, uncontrolled-tramcar will be transformed into the kinetic energy of the friction material of the deformation energy or materials to the final implementation of the interceptor brake roadster. Existence of these energy absorption system power small devices, not enough braking process disadvantage gentle, but also because of mechanical friction or a variant of non-plastic brake, short-life devices, high maintenance costs. After studying the hydraulic brake theory, the authors focus on damping turbine-type energy absorption devices to do the design and analysis. Turbine energy absorbing damping device using hydraulic energy absorption means and the braking torque in the process of large flat components without mechanical wear, the life expectancy of long-term non-friction comparable energy absorption devices.The use of Matlab in Simulink simulation software toolkit with the energy absorption of the tub brake linkage of rigid and flexible block car car collision blocked the process of dynamic simulation. Absorbing energy from the brakes and the car blocking the work of the linkage principle, a dynamic simulation of different quality, different angle of the shaft along the tramcar to run a collision course with the vehicle block, and by analyzing the simulation data and charts, for the turbine-type energy absorption damping Design and provide a theoretical basis and research.Inclined flexible protection against the uncontrolled-tramcar of the electric control system requirements for the PLC-based control program to explore. Combination of control system design of the electrical system schematics, layout of the PLC of the external wiring, and control engineering at play a key role in the pressure sensor and circuit-axis sensor to do the analysis. Protection system for sports car course to do the basic job control of the PLC programming.In this paper, for the tramcar inclined flexible energy absorption protection system design and research provides a theoretical basis, technical reference and research methods possible. Hardware because of limited laboratory conditions, unable to exist in the actual working condition, the brake energy absorption will have an impact on the well-known factors to consider. Look forward to the follow-up research work in process, the device can work on-site testing, analysis of the actual job data records, and optimize the device structure to improve.
Keywords/Search Tags:Mining-rail, Arresting of uncontrolled tramcar, Energy-absorbing buffer, Flexible
PDF Full Text Request
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