Modularization Automatic Brake Shoes Stack Adjuster Performance Testing System Based On Industrial Control Computer

Automatic brake shoes stack adjuster is the important composing part of train basic brake equipment. The running securities of rolling stocks are directly affected by its performance. Therefore, the brake performance must be examined abiding by a series of trails. This paper developed an advanced automatic brake shoes stack adjuster performance testing equipment for the need of examination spots. The equipment, whose core is the industrial computer and Data Acquisition control board, created a functional and reliable testing system, and built a testing data management system.After the careful investigation on the former testing equipments, the papers finished the alteration of the simulation cushions advanced machine scientifically the paper also designed grating measure and execute machine which ensured the test's dependability. The system as well as built database management system. The system adopted module design method. The complex system was divided into several modules. And the virtual instrument conception was introduced into the system. The functions of the system were defined by the software, which made the system access to widely scope of computer resource, and enhanced the flexibility of the system. In the paper the Object-Oriented concept and the Procedure-Oriented concept were united together, which can further the understanding of measure & control system. The test's procedure is the procedure of the test object. And the test's object is the object in the test procedure.The system regarded industrial control computer as main control part. Depending on it, the system realized automatic control to every modules, and data acquisition, saving, query as well as test person management. The system simulated brake shoes stack change according to alter thickness of cushions. In order to insure the veracity of system working pressure, it made use of pressure sensor to collect brake vessel's pressure. Moreover in term of test request, the system need collect brake vessel' piston journey to check whether it is in the scope of error. The system utilized grating sensor collect screw working length,...