Beijing Xuanhe Testing Technology Co., Ltd.

Research Institute for Test Equipment and Technology was a scientific subsidiary of Tianjin research institute for advanced equipment，tsinghua university. The research institute was mainly focused on advanced test technology research for gear transmission system, research and develop of testing equipment, the external testing services (cooperation) and consulting services for external project.

Qingyan Zhongzhi Test Technology (tianjin) Co. Ltd was established on the Research Institute for Test Equipment and Technology, Tsinghua university was the main shareholders of the industrialization of the company. The company was mainly responsible for transformation and external cooperation about scientific research achievements of the Research Centre for Equipment and Technology.

The main business direction

▶　Research on testing technology and equipment

▶　Research and development on testing equipment

▶　Testing service

▶　Research on gears and bearings modification technology

▶　NVH evaluation and analysis of gearbox

The main business area

▶　Test on motor and engine of the electric vehicles

▶　Test on the gearbox, axle and other key components of the transmission unit  

▶　Test on the whole robot system and the motor, and hochpraezis reduction gears

▶　Test on high-speed rail bearings and the gearbox 

▶　Test on wind power gears and the gearbox

The main product and technical service:

1. Test equipment and technology for motor test;

Testing object: servo motor and electric vehicles motor

Testing contents： 

▶　Unloaded motor test;  

▶　Overloaded capacity test; 

▶　Renewable energy feedback test;

▶　The maximum operated speed and over-speed test;

▶　Test on locked-rotor torque of motor;

▶　Error of rotate-speed test;

▶　Durability of the drive system test;

▶　Temperature and temperature rising test; 

▶　Rated power test;

▶　Test on the total efficiency of motor and controller; 

2. Test equipment and technology for gearbox test;

Testing object : gearbox and reduction gearbox of electric vehicles, MT, AT, AMT, DCT, CVT, axle

Testing contents：  

▶　Contact spot test; 

▶　Inclined lubrication test;

▶　Transfer error test;

▶　Shift performance test;

▶　Fatigue test on the synchronizer;

▶　Dynamic packing test;

▶　Temperature rising test;

▶　High-speed performance test;

▶　Endurance test ; 

▶　Noise test;

▶　Transmission efficiency test;

▶　Offline test;

▶　Performance and fatigue test on the synchronizer, clutch and other components 

3. Test equipment and technology for robot experimental;

Testing object: the whole robot system and the hochpraezis reduction gears

Testing contents：

▶　Position & orientation accuracy and repeatability test on the whole robot system;

▶　Distance accuracy and repeatability test on the whole robot system;

▶　Track accuracy and repeatability test on the whole robot system;

▶　Positional overshoot test on the whole robot system;

▶　Vector angle and positional deviation test on the whole robot system;

▶　Stiffness test on the reduction gears;

▶　The transmission accuracy test on the acceleration gear;

▶　Start up/pause test on the reduction gears;

▶　Unloaded friction test on the reduction gears;

▶　Temperature rising test on the reduction gears;

▶　Transmission efficiency test on the reduction gears;

▶　Endurance test on the reduction gears;

▶　Noise test of the reduction gears;

4. Test equipment and technology for bearing experimental ( antifriction bearing );

Testing object: automobile bearing, robot bearing, wind power bearing, High-speed rail bearing

Testing contents：

▶　Unload (light-loaded) start torque test;

▶　Temperature rising test; 

▶　Vibration test;

▶　Endurance test;

Cooperation: