复合式制动气室性能在线检测系统设计

Disquisition of Performance On-line Detection System for Brake Chamber

设计并实现复合式制动气室性能在线检测系统,弥补国内对复合式制动气室性能在线检测研究存在的不足。引入伺服加载机构,突破以往检测中推杆行程限位装置加载速度不可控的局限,实现限位装置的加载速度精确可调;应用高速数据采集卡和计算机控制技术,提高系统的采集速度和测量精度。可对多类型的复合式制动气室驻车制动腔静特性、行车制动腔静特性、开始释放压力等性能进行在线测试和分析。通过试验分析表明检测系统能真实准确的对复合式制动气室的性能进行在线检测,检测周期小于2min/个,其测量精度达到实际应用的要求,并采用R&R法客观的分析检测系统,已达到新设备的验收条件。

The on-line detection system for brake chamber was designed and realized, which made up for the domestic deficiency of on-line detection research for brake chamber. Servo-loading mechanism was introduced in the design of test system to break through the limitation of which previous test can not con- trol the load speed of brake chamber and to achieve load speed precisely and adjustably. Using high- Speed data collection card and computer control technology to improve the sampling speed and the meas- uring accuracy of the system. It can test as well as analysis the static characteristic of parking brake chamber, static characteristic of service brake chamber and hold-off pressure on-line. Through the test and analysis shows that, the detection system can true accurate the performance of complex braking gas chamber by on-line detection, which the period less than 2 min, the measuring precision has met the practical requirement. Using the R＆R method to objectively analysis the detection system, has reached the conditions of the new equipment successfully.