The Optimization For Working Device Of Jaw Crusher And The Simulation Of Crushing Force

The smash of material as a process is widely used in metallurgical, mining, building materials, chemical, electric power industry and so on, there is a large number of raw materials and reuse of waste treatment need to be crushed every year, in the primary crushing stage, jaw crusher is the application of the main equipment. The performance of jaw crusher elated to the level of productivity and product quality levels, developed energy efficient crusher, can save a lot of money costs, improve production efficiency, it is important for achieving high-quality, high yield, low-cost, low power consumption.The paper studied PE250×400 jaw crusher, based on computer graphics and virtual prototyping technology, optimization of working device with a capacity target, combination of experimental and simulation analysis of the breakage force.The paper established three-dimensional model of jaw crusher by Using Solid Edge software, and simplified the working device, based on virtual prototyping technology, exerted constraints on working device by ADAMS software, got the speed, acceleration, angular velocity, angular acceleration of the center of gravity of the moving jaw, and analyzed the rate of size on the performance of crusher. Based on the results of simulation, it got the trace and the trip value of moving liner, and it will provide reference for future design.The paper established the parameter model for working device in the ADAMS software, and established the capacity as the objective function, the length of crank and the link as the design variables, and built the relationship of the design variables, through the design study, it analyzed the crank length and link length impact on the capacity. By using optimal design, it get the optimal value when the capacity is the maximum value.Finally, the breakage force was analyzed by using the combination of experimental and simulation methods, used the conglomerate and siliceous rocks as the research object, after set the test program, it got the maximum failure load of the conglomerate and siliceous rocks and their performance parameters by using uniaxial compression test, through simulation it got the impact force of the inlet, middle, and the outlet of crushing chamber, the paper analyzed the experimental and analytical results and it got the distribution of the crushing force in the chamber. And it provided a important basis for computing the maximum crushing force.