High speed rail, as a shining pearl in the transportation system, has profoundly changed people's modes of travel and transportation. According to the operating speed of China's high-speed rail network, it can be divided into three types: 250 kilometers per hour, 300 kilometers per hour, and 350 kilometers per hour. In such an ultra high speed operating environment, ensuring the safety and stability of high-speed rail has become the top priority of the entire transportation system. Therefore, a series of rigorous and comprehensive testing work is particularly crucial before the high-speed rail is officially put into operation.
Simulation testing has become an indispensable part, which simulates actual working conditions through physical objects or proportional models to accurately obtain product performance parameters. Conductive slip rings, as key components of simulation testing equipment, are widely used in high-end testing equipment such as aircraft engine testing and high-speed rail track inspection. The former requires high-precision slip rings, while the latter has higher requirements for rotational speed. Due to the limited diameter of high-speed rail wheels, in order to achieve a speed of over 300K, the speed needs to reach over 2000 revolutions per minute to meet the demand. In the early stages of high-speed rail development, in order to accurately capture key information such as the friction characteristics and vibration data between the wheels and the track at extreme speeds, researchers must conduct repeated experiments on a professional testing platform. The conductive collector ring in the track test equipment can stably supply power and transmit signals to the sensors embedded in the high-speed rotating wheels at a working speed of over 2 revolutions per minute, ensuring the continuity and accuracy of test data.
JINPAT slip ring adopts advanced fiber brush technology to ensure low friction force, low contact resistance, and no friction debris. Compared with similar products, it has the advantages of high rotation accuracy, more stable performance, and a lifespan of up to 230 million revolutions. There is also a 12.7mm center through-hole designed specifically for hydraulic or pneumatic transmission shafts, which can continuously rotate 360 ° to transmit analog or data signals. It is compatible with data bus protocols and can transmit Ethernet, LSB, RS232/RS422/RS485 serial signals, Canbus, Friewire and other signals. JINPAT has developed multiple slip rings for high-speed rail testing equipment, such as LPT012B-0602-HS-HT slip ring. Its main features are high speed, high temperature resistance, and long service life. When its service life reaches 2000RMP, the rotation life reaches 230 million revolutions. At a speed of 10000RMP, it can still operate 50 million revolutions. Regardless of the high temperature caused by outdoor environment or the heat generated by high-speed operation friction, the high-speed rail slip ring can maintain normal operation at a temperature of 150℃. Reliable power and signal transmission help high-speed trains obtain sufficient acceleration during high-speed travel.
In response to the demand for high-speed rail track testing equipment, JINPAT has made technical improvements to the standard hollow shaft slip ring. In order to ensure smooth operation and good electrical performance, JINPAT is also more stringent in material selection. In addition to using high-temperature resistant alloy materials for wire brushing, insulation sheets and spindles are also made of high-temperature resistant materials. The final product also needs to undergo high-temperature testing to ensure stable transmission at high temperatures. The conductive slip ring technology in high-speed rail testing equipment is not only the key to ensuring the smooth progress of high-speed rail research and testing, but also an important force to promote continuous breakthroughs in China's high-speed rail technology and lead the world trend. With the continuous advancement and innovation of technology, we have reason to believe that the future high-speed rail will be safer, more efficient, and intelligent, bringing more convenience and surprises to people's travel.