Structure Design Of Super Large Cylindrical Gear Parameter Error Meaning System

Super large cylindrical gear as large-scale machinery and instrument of key parts, according to the national standard definition, will be more than 500 mm diameter of gear is called large gear, gear is used for some key areas and affect the overall important industries, such as hydropower, mining industry, automobile, petrochemical, metallurgy, shipbuilding, aircraft, military machinery, large engineering machinery, large ships and missile launch and social urban planning of industries.At present, China’s large gear processing equipment although more, but for its detection means, often can only rely on machine tool accuracy assurance and testing thickness accuracy, domestic small gear testing equipment are manufacture complete sets of equipment of the device, most can’t testing large gear, although the overseas higher measuring large gear measuring machine, but this kind of high-end testing equipment price is high, but large cylindrical gear processing accuracy standard is indispensable. Due to the large cylindrical gear volume, weight, put the same card and other factors, so its parameters exist precision error, and large cylindrical gear parameters affects the accuracy of the whole machine and the instrument of the overall quality and precision sex. For the large cylindrical gear accurately detection is also in constant exploration.This topic mainly according to the cooperation factory proposed requirements, combined with the actual situation, the factory provided the basis of turntable, design a side set type big gear measuring machine mechanical structure, to ensure complete measuring large cylindrical gear pitch error, accumulated pitch error, profile error and tooth error and other major parameters. Based on current situation of large cylindrical gear detection, the measurement technology improvement and development of specific measuring instrument is a necessity, its market prospect and wide application. So, this topic research design has certain theoretical meaning and great application value.The main research contents are as follows:1. Define the measurement scheme, the completion of the gear tooth profile, tooth, pitch error measuring path planning design of the project.2. The design of large gear automatic measuring system and the rotary table jig mechanical structure, will be able to realize the measuring head in the required range of space move and the big gear fixed.3. Use 3 d software simulation on its movement.4. Structure important parts selection and check, make it meet the measuring accuracy and mechanical requirements.