Elevator traction machine test bench
1.1 Technical parameters
1.1.1 Test parameters Input voltage Uab, Ubc, Uac voltage imbalance;
Input current Ia, Ib, Ic current imbalance;
Power (P), power factor;
Output torque (T out), speed (n out), power (P out);
Efficiency (η), temperature rise (Δθ);
Minimum start voltage and maximum release voltage of the brake;
Brake lag time;
1000V for 1min withstand voltage test.
1.1.2 Measurement required torques: 1000Nm, 2000Nm, 5000Nm, 10000Nm four gears, accuracy: ± 0.5%
Speed ≤800r / min, accuracy: ± 0.2%;
Temperature accuracy: 0.5 level;
Voltage accuracy: 0.5 level;
Current accuracy: 0.5 level;
Time accuracy: 0.01s.
1.2 Test Bench Features
1.2.1 Traction machine test system can perform no-load test, efficiency test, temperature rise test, endurance test on geared reducer elevator traction machine, permanent magnet synchronous gearless elevator traction machine, escalator and sidewalk escalator drive host ;
1.2.2 The traction machine test system can display the input voltage (three-phase), current (three-phase), power, power factor, output torque, speed, power, efficiency, ambient temperature and oil temperature of the traction machine in real time;
1.2.3 The traction machine test system can automatically identify and display positive and negative torque;
1.2.4 The traction machine test system can take manual or automatic access to the test data, and the automatic access interval can be set arbitrarily
1.2.5 The traction machine test system can display the collected data and curves in real time while storing the data;
1.2.6 The traction machine test system can draw the test results into time, output power, torque, efficiency and other curves;
1.2.7 The traction machine test system can observe the operation of the traction machine from the curve at any time;
1.2.8 The curve coordinate value of the traction machine test system can be arbitrarily set to meet the requirements of the traction machine test;
1.2.9 The traction machine test system has a memory function for the setting of various parameters, and only needs to be entered once;
1.2.10 Traction machine test system has historical data playback function;
1.2.11 The traction machine test system can print the data and curves of the test results through a printer;
1.2.12 The entire function of the traction machine test system has dual operations of menus and shortcut keys, and Chinese characters can be prompted on the screen;
1.2.13 system is RS485 communication bus, a serial port is reserved on the computer for communication;
1.2.14 The coupling for the system is an elastic coupling.
1.3 Project Selection:
1.3.1 The speed sensor is selected from 1000, 2000, 5000, 10000Nm torque speed sensors.
1.3.2 The loader selection uses 1000, 2000, 5000, 10000Nm magnetic powder brakes.
1.3.3 Test platform As a traction machine test platform, it must have the advantages of vibration absorption and small deformation, so that in the future work process, to avoid dislocations caused by deformation and weak vibrations, traditional cast iron plates are used.
1.3.4 Related supporting instruments and weak current control cabinets According to the selected sensors, one torque speed measuring instrument, one two-way temperature tester, one program control controller, one electrical parameter tester, and Chinese automatic test are used. One set of software, one weak current control cabinet, one set of 1000Nm, 2000Nm, 5000Nm, 10000Nm system tooling, coupling, and two sets of test piece tooling.