Research On The Wedge-shaped Device Of The Broken Rope For The Aerial Passenger Device

The aerial passenger device for coal slope mine has been widely used in miner transportation with the advantages of being economical and practical, safe and reliable, and strongly adaptive to the environment.If the wire rope breaks suddenly when the aerial passenger device is under operation, it will cause great casualties and property losses.In recent years, there have been many researches on broken-rope capture devices for aerial passenger devices at home and abroad.But the current plans of broken-rope capture devices still have various deficiencies. There has not been any mature plan with advanced technologies established to coal mine real production yet. Therefore, it is very meaningful to design a highly efficient and reliable broken-rope capture device for the coal mine safe production.After analysing the causes of wire rope breaking accidents, combined with real working conditions of the aerial passenger device, and clarifying the design objectives of broken-rope capture devices, we conduct the research on an overall plan of a broken-rope capture device. We systematically expound the wedge self-locking principle, then research out the mechanical structure of thebroken-rope capture device by referencing to the mechanical design theory, and finally research out a matched hydraulic drive system by adopting the idea of mechanic-electronic-hydraulic integration design. We use the Solid Works software to model the mechanical structure of the broken-rope capture device,and also use the Workbench software to carry out a static simulation analysis for the model. We use the AMESim software to establish the hydraulic system model and carry out a simulation analysis for the model. We use the ADAMS software to establish the model of the software capture process and carry out a dynamics simulation analysis for the model.The statics simulation results show that it may reduce the maximal stress value when the wedge block angle increases within the range for self-locking. It proves the rationality and validity of the hydraulic system by simulating and analysing the whole working process of the hydraulic system. After simulating and analysing the factors that may affect the capture time, the results show that it can effectively shorten the capture time by increasing the accumulator charging pressure and by choosing the suitable accumulator volume and control valve parameters. Using the ADAMS software to create models for the mechanical structure and the wire rope, we simulate and analyze the movement and the force of each part in the process of capturing wire rope, conduct research on the features of capturing mechanical structure from the aspect of dynamics, and simulate and analyze the factors which are likely to affect the capture effect in order to optimize the design. All simulation results prove that the broken-ropecapture device in this subject is reasonable and effective.