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进口的977L履带装载机,功率为190马力,自重20吨,斗容量2米~3,传动系统为液力机械式。由于作业工况恶劣,其行走机构中的履带、驱动轮、支重轮和支持架某些部件等磨损较严重。一般使用周期为一年半左右,大约能装载石料7万米~3。更换一台机械的履带、驱动轮和支重轮等部件的购置费大约要人民币外汇为十六万元。为了能够及时修复使用和节约外汇,我们采用了国产ST_2-120型推土机的上述件加以改制两台套,经实际使用证明:一般使用周期为4个月左右,约能装载2万米~3以上
The imported 977L crawler loader has a power of 190 horsepower, a weight of 20 tons, a bucket capacity of 2 meters to 3, and a transmission system of hydraulic machinery. Due to the bad working conditions, the wear of crawler belts, driving wheels, rollers, and some parts of the support frame in the walking mechanism is serious. The general use period is about one and a half years, and about 70,000 meters to 3 stones can be loaded. The purchase fee for replacement of a mechanical track, drive wheels, and roller bearings is approximately RMB 160,000 for foreign currency exchange. In order to repair and save foreign exchange in a timely manner, we used the above-mentioned ST_2-120 bulldozer to reconstruct two sets of the above-mentioned parts. The actual use proves that the general use cycle is about 4 months, and it can load about 20,000 meters to 3 or more.