10MN microcomputer-controlled electro-hydraulic servo force standard machine and application method thereof

Abstract

The invention discloses a 10MN microcomputer-controlled electro-hydraulic servo force standard machine and an application method thereof. The 10MN microcomputer-controlled electro-hydraulic servo force standard machine comprises an actuator and a control system. The actuator comprises an alternating current motor, a chain transmission mechanism, a beam travel limit switch, transmission nuts, a beam, screws, a base, a lifting mechanism, an upper pressure plate seat, a lower pressure plate seat, a lower pressure plate seat positioning plate, standard load sensors, a plunger, a plunger base and a cylinder block. The 10MN microcomputer-controlled electro-hydraulic servo force standard machine is a large-sized bearing capacity detection technical unit and is large in detection range, high in bearing capacity, convenient, practical, stable and reliable. Cylinder pressure control by controlling gear pump rotation speed is fast, accurate, energy-saving and quick in feedback. By the aid a control unit, accuracy and stability in the standard machine are improved greatly. The 10MN microcomputer-controlled electro-hydraulic servo force standard machine plays a significant role in projections such as tunnels, bridges, mechanical manufacture and the like.

Description

Technical field [0001] The invention relates to a 10MN microcomputer-controlled electro-hydraulic servo force standard machine, which is a large-scale bearing force detection technical equipment. Background technique [0002] The force standard machine is a standard equipment for verification or testing of dynamometers, force and load cells in mechanical measurement. The force standard machines on the current market can be divided into four types in principle, namely, deadweight, lever, hydraulic and superimposed force standard machines. The superimposed force standard machine in my country is a new type of force standard machine that only appeared in the 1980s. Because it has the advantages of low price, high efficiency, small size, convenient use, and ability to provide stepless continuous force values, so In recent years, the scope of application has gradually expanded, and it has become an important technical equipment for force measurement and weighing industries. In terms ...

AI Technical Summary

Problems solved by technology

[0004] There are many factors affecting the accuracy level and stability of the force standard machine. For the hydraulic force standard machine, one of the main influencing factors is the cylinder pressure control. At present, the more popular way is to use the overflow valve or accumulator to control, but This control method may produce an overshoot phenomenon when the pressure value reaches the set value, which will affect the verification results.

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