New technology and new construction, such as hydraulic coupling, dismountable scraper chain, pneumatic discharge gate valve and screw tensioning device with multi-spring buffer are used.
它采用液力偶合器、可拆式刮板链条、气动卸料闸门以及多弹簧缓冲的螺旋张紧装置等新技术、新结构。
2
Plate conveyor head round the main device, the chain plate scale devices, the end of round tensioning device, rack and drive components.
板式输送机主要由头轮装置、鳞板链条装置、尾轮张紧装置、机架和驱动装置组成（略）。
3
The actuating device and the tensioning device are connected with the drag chain.