Research Of The Tramcar Connect Device Strength Testing System

Tramcar connect device is an important safety feature, its quality, performance and use situation of transport safety relates to mine. connect the device to a rupture is evoked inclined lane sports car accident is one of the main reasons. Tramcar connect device strength test is an important coal enterprise production safety guarantee and the required safety performance testing project.The thesis according to the tramcar connect device structure and mechanical characteristics, from the national standard of detection and technical indexes, combining the mine vehicle link chain strength testing equipment control system characteristic, based on general narrow-gauge tramcar connection device strength test as the research object, according to the latest development of a set of tramcar connection device strength testing system of the electro-hydraulic control aspects. By hydraulic system, this paper analyzed the principle of system load valve and the matching relation, through calculation, in hydraulic system and small flow control large pressure changes of elastic large-stiffness load characteristics, puts forward the electro-hydraulic flow servo valve and electrohydraulic proportional relief valve double valve control alternately add pressure compensation control scheme. And around the control mode analysis of the system characteristics, accuracy and stability. Theoretical analysis and calculation results show that the feedback control mode of rationality and scientific nature, the system is stable. The tramcar connection device strength testing system of the electro-hydraulic control mode is pertinence, also has the universal significance.