Produits

Système de test de transmission à grande vitesse personnalisé pour l'aviation

We provide customized test test systems for aviation high-speed transmission systems, such as high-speed generators, high-speed transmission boxes, etc.. Various types of shafting, dynamometer systems and electrical loads can be designed according to actual needs.

1. High-speed generator test system

The high-speed generator test system consists of high-speed four-quadrant running dynamometer, four-quadrant inverter, mechanical system, high-speed coupling, electrical load (resistive, capacitive, inductive) or electronic load, lubrication system, sensor measurement system, Electrical parameter measurement system, measurement and control system, etc.. According to the parameters of the generator, you can choose the direct drive type of the high-speed dynamometer, or the type with the speed increasing box; the speed increasing box type is also designed as a single output shaft or double output shaft structure type.

The measurement and control system consists of a host computer monitoring system, a data acquisition system, a sensor measurement system, a frequency converter control system, a test bench auxiliary equipment control system, a safety monitoring system, and an early failure warning system. The measurement and control system uses real-time bus as the main communication network EtherCAT, which greatly improves the communication speed of the system.

The lower computer monitoring system adopts an architecture based on an embedded real-time controller and a dedicated main control computer to realize the control of the dynamometer and other subsystems. The test system uses the fastest and stable communication method EtherCAT. The dynamic response time of the system can reach 8ms, electrical inertia simulation can be performed to simulate the actual inertia of the test piece to be tested; the system can also perform curve following control, according to the torque-time or speed-time curve of the test piece to be tested, The machine performs real-time follow-up control to simulate the actual operating state. The test bench adopts an architecture based on an independent controller, which can greatly increase the response speed of the system, increase the speed of cutting off the inverter in time when the system fails, and reduce system risks.

Strict fault monitoring, fault warning and fast fail-safe cut-off are carried out on the main body of the test bench and the test piece. In this system, an independent fault early warning system for mechanical rotating parts is designed. The early warning system is based on vibration sensors installed on the motor under test, dynamometer, bearing housing, etc..

The main control system also processes the sensor data of each subsystem, and processes alarms and shutdowns that exceed the set safety value.

The test bench provides the communication interface with the cooling system purchased by the user; the communication interface with the power analyzer; the communication interface with the electrical load.

2. High-speed transmission box test system

The high-speed transmission box test system generally tests the high-speed transmission box in the back-end transmission chain of aero engines. The system generally consists of high-speed drive motors, load motors, variable frequency control systems, sensor measurement systems, lubrication systems, high-speed shaft systems, and mechanical systems. , High-speed gearbox system, real-time vibration detection system, real-time control system, high-speed data acquisition system and other parts.

The high-speed transmission system test system can be composed of multiple drive motors and load motors according to the needs of the test product to be tested, and the shaft system can also be designed according to real-time requirements.

For some test pieces, a certain axial force needs to be applied during high-speed rotation. We can provide a stable and accurate axial force loading system.

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