Development And Research Of Crane Brake Test System

Hoisting machinery is a kind of intermittent work, the working characteristics of mechanical is often starting and braking, therefore, in hoisting machinery is widely used in various types of brake, it is to guarantee the normal work of hoisting machinery safety an important part. But as the overall industrial manufacturing level enhancement, and market demand the logistics cost of gradual decline premise, lifting transportation equipment was drifting toward large-scale, intelligent, etc. Then the corresponding parts must also and industry development, the synchronous with brake is represented security device.Crane brake inertial trial system is for industrial brake and lifting transportation mechanical brake new to the research and development of products work, brake mechanism research, product performance testing, product reliability, safety accident back analysis is an important test equipment work. The experimental system at home and abroad and widely used inertia simulation methods, and inertia simulation is compared commonly commonly used mechanical simulation method to realize that the process of the brake friction are from inertial flywheel storage kinetic energy. In addition, through different size of the flywheel cooperate with different types of brake for testing, compared to other more direct simulation method, also favors the on-spot operation. This paper mainly research contents include the following respects.(1) inertia. Test principle test-bedAccording to energy conservation principle simulation crane brake braking process of this process, theoretical analysis, it is concluded that the experiment basis. Determine the specific function and test rig the range.(2) the main structure forms test-bedAnalying test-bed structure form, according to the specific circumstances of this test rig, the design gives can satisfy the main body structure of the testing requirements.(3) test rig drag scheme research According to the specific requirements of the rig test system, calculation of flying roulette combination, analyzes the common electric drive speed control technology for this method, the selection of the test-bed drag system plan and make motor speed the theoretical calculation and selection of power.(4) test method researchAnalysis torque sensor measuring the brake torque method, puts forward a new measurement methods, namely through measurement speed change (acceleration) indirect draw the brake torque.