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PY250平地机是天津工程机械制造厂采用“嫁接”和自行设计相结合开发的新产品,如图1所示。产品性能达到了国际同类产品的先进水平,填补了国内大型平地机的一项空白。1987年7月,通过了国家级鉴定。该机采用了(美)CAT公司生产的发动机、变速箱、后桥主传动、主要液压元件和操纵系统,从而保留了其技术上的特点和先进性。机架、司机室、前桥和全部工作装置为自制件,样机自制率达到57.58%,自制部分能保证整机性能和使用要求。一、主要技术性能参数工作质量: 标准型: 前桥(kg)6600 后桥(kg)18250
The PY250 grader is a new product developed by Tianjin Engineering Machinery Factory using the combination of “grafting” and self-design, as shown in Figure 1. Product performance has reached the advanced level of similar products in the world, filling a gap in domestic large-scale motor graders. In July 1987, passed the national appraisal. The machine adopts the engine, transmission, rear axle main drive, main hydraulic components and operating system produced by CAT Corporation, which retains its technical features and advanced features. The rack, driver’s cab, front axle and all working devices are self-made parts. The self-prepared rate of the prototype is 57.58%. The self-made part can guarantee the performance and use requirements of the whole machine. I. Main technical performance parameters Work quality: Standard type: Front axle (kg) 6600 Rear axle (kg) 18250