外文翻译--自卸车举升系统设计浅谈.doc

附 录 附录A英文原文 A Brief Description of Lift Truck System Design Martin W.Crouse Abstract： In this paper, dump truck through a brief design analysis, in view of the length of the larger features of heavy-duty dump truck, lifting the system from node Structure design and hydraulic design of the corresponding measures for the lifting of heavy truck design a certain guiding function. Key words： heavy-dutylifting；system 1. The main structure of dump truck Dump truck, including the structure of the main lift system, chassis, frame, vice,component compartments, 2. lifting body design and analysis  Heavy-duty dump truck lifting system in the design process of the main issues that need to be addressed include: lifting forms of selection, in the lift car in the process of stability, before and after the bridge, the reasonableness of axle-load distribution and hydraulic system reliability. Chassis by following the design of 7.2 meters on concrete examples of the dump truck, dump truck lifting mechanism on the general idea of system design. 2.1 Compartment volume to determine initial Chassis in accordance with the parameters: Wheelbase 3900mm +1350 mm, rear overhang 900mm, set the quality of 17500kg, and the whole 1600mm rear overhang for the request to determine car-size 5600mm * 2300mm * 1500mm. Determine the initial car position in the chassis for the car back out of the back-end chassis frame870mm. In determining the form of lifting, the need for further analysis of Count before and after the bridge and axle-load distribution of the car to verify the location of the vehicle in the second category is reasonable. 2.2 determine the form of lifting  Lift truck used mainly in the form of F-type, T-style, front-straight top form. In F-type, T-style, front-straight top three identified in the form of lifting one of the most suitable, we need three conditions on the analysis of calibration. Lift the form of