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RT4000—Precision reducer (RV/harmonic/planetary) transmission error—product background
Industrial machine technology is one of the key technologies of intelligent manufacturing. Whether it is advanced manufacturing in the United States, Industry 4.0 in Germany, or Made in China 2025, it will be listed as a key direction for future development. The competition of industrial robots has risen to the level of national industrial strategy, and the manufacturing and testing of its key components, precision reducers, are monopolized abroad. In order to ensure that the industrial robot has high rigidity and positioning accuracy, the RV reducer needs to have the characteristics of short transmission chain, small physical examination, high power and high precision, and high manufacturing and testing requirements. At present, domestic researches on RV reducers tend to focus on theoretical model analysis, reducer parts processing and assembly errors, clearance, gear meshing stiffness, bearing stiffness and other factors affecting transmission accuracy. In view of the above factors, the precision reducer (RV/harmonic/planetary) transmission error test system is widely used in the field of industrial robots. The precision reducer (RV/harmonic/planetary) transmission error test must ensure product performance and Product quality, so it is very important to carry out strict tests on the performance of precision reducers. According to the national standard GB/T 35089-2018 robot precision gear transmission test method and the requirements of other national standards, the system conducts transmission error test of the reducer.
●GB/T 35089-2018 Test method of precision gear transmission for robots
●GB/T 37165-2018 precision cycloid reducer for robots
●GB/T 30819-2014 Harmonic gear reducer for robots
●GB/T 14118-1993 harmonic drive reducer
●GBT 11281-2009 General technical requirements for gear reducers for micro motors
●JB/T 5558-2015 Speed reducing (increasing) test method
●Sample of foreign well-known reducer products
RT4000—precision reducer (RV/harmonic/planetary) transmission error—topological structure
RT4000—precision reducer (RV/harmonic/planetary) transmission error adopts modular and integrated design, the operating part is ergonomically designed, and can complete manual/automatic mode control. It is composed of mechanical system, drive system, DUT system, load system, electrical system and host computer software system combined module mode.
●Mechanical system: cast iron platform, coupling, shaft connection, etc.
●Drive system: servo motor drive, torque speed sensor, high-precision encoder, etc.
●DUT system: DUT tooling, DUT coupling, adapter plate, etc.
●Load system: magnetic powder loading, high-precision encoder, etc.
●Electrical system: drive load controller, real-time control system, data acquisition, alarm system and other equipment.
●Software system: host computer test software data acquisition communication module, data acquisition setting module, data real-time exchange control module, data processing module. The upper computer completes the functions of test control, data analysis and display, data recording and export according to the test items.
RT4000—precision reducer (RV/harmonic/planetary) transmission error—system function
Test range and accuracy:
●Drive power range: 100W~5KW power level, support other power level customization;
●Range of driving speed: 0~9000rpm; (depending on power);
●Driving torque range: 0-100N.m;
●Speed measurement accuracy: ±1r/min;
●Torque measurement accuracy: ±0.05%F.S;
●Angle measurement range: 0-360°;
●Load power range: 5kw power level, support other customization of other power levels;
●Load speed range: 0~200rpm;
●Load torque range: 0-100N.m; (with load transmission error)
●Angle measurement range: 0-360°;
No-load transmission error, load transmission error.
RT4000—precision reducer (RV/harmonic/planetary) transmission error—main features
01 Functional modularity
All the benches are built using functional modularity, and are combined into one test system in the form of modular combination.
02 Advanced measurement methods
Adopt advanced real-time measurement and control system, including input angle test, speed and torque test, etc., sampling high sampling module to meet the high precision and fast response requirements of the test system, and provide transient data and characteristic value data, which is convenient for the software to perform the test process data later Comprehensive analysis.
03 Complete test items
According to the test requirements specified in the national standard, test items can be added or removed according to the configuration module, which can meet the test items for various types of tests
04 Drive/load mode
The servo motor is used as the drive unit, which improves the dynamic measurement range and accuracy of the torque and speed of the system. The load adopts the magnetic powder loading mode, which can realize the transmission error curve under no-load or loaded conditions, and highly simulate the real-time operating conditions used in the field. .
Using a professional precision reducer test bench, the fixture adopts a quick centering system, and it is convenient for loading and unloading and coaxial adjustment, which can be adapted to different installations of the tested parts. The system operation adopts the piano table/stand-up cabinet + computer desk control mode. Complete the layout of all test operations in a single position.
06 Customized testing software
The test system test software developed by the Sichuan Chengbang Software R&D team, according to the requirements of the national standard, classifies the software interface and process, reduces repeated tests, and greatly improves the work efficiency of testers. And it has the functions of real-time curve drawing, transient value capture, trend curve drawing and analysis, multi-parameter combination display, qualified judgment, report export and so on.
RT4000—precision reducer (RV/harmonic/planetary) transmission error—main application
●Various RV/harmonic/planetary reducersScan the QR code to read on your phoneWe could not find any corresponding parameters, please add them to the properties tablePreviousNoneNextNone