中文字数:3682,中文页数:9   英文字数: 2131页数:9

Screw compressor rotor machining tool wear the geometric calculation method [Abstract]: screw compressor rotor milling and processing a grinding two methods, usually conducted in two phases processing; first stage is rough, when the workpiece to be processed about its size to the second stage of Finished, when the rotor be processed into its final size when completed. Materials or cutting cushion in the finishing was removed, it is by milling, grinding and cutting tools determined by the design. Taking into account the screw compressor rotor is a spiral shape, in the process of cutting, cutting tool on every point of contact with the rotor of the horizontal length is not the same, therefore, finished at the rate of wear and tear tool of its type along the line is Inconsistent. Envelop the meshing theory be used here in terms of the process of cutting tool on every point and the relative motion between the rotor. To a certain scale, in this relative movement of assumptions, calculated on every point of the tool wear rate. By calculating the results and experimental tool that the rate of wear and tear, we can see that both the conclusions are the same. On this basis, can know how to create a rough time so that semi-processed materials while the thinning tool and thereby facilitate the finishing tool at the same rate of wear and tear. A similar technology is being applied to many of the machines during processing, and forming a variety of knives were also used for these technical. Keyword: screw compressors; spiral rotor; manufacturing tool
1. Description:

  螺杆压缩机转子加工中刀具磨损的几何计算方法
 [摘要]：螺杆压缩机转子加工有磨削和铣削两种方法，通常分两个阶段进行加工；第一阶段为 粗加工，当工件被加工到它的大概尺寸即可；第二阶段为精加工，当转子被加工成它的最终尺寸时完成。材料或切削余量在精加工中被除掉，它是由磨削和铣削加工时切削刀具的设计所决定的。考虑到螺杆压缩机的转子是螺旋形状，在切削过程中，刀具上的每一点与转子的横向接触线长度是不一样的，因此，精加工时刀具的磨损速率沿着它的型线也是不一致的。包络线的啮合理论被用于这里来计算在切削加工过程中刀具上的每一点和转子之间的相对运动。以一定的比例尺，在此相对运动的假设下，计算出刀具上每一点的磨损速率。通过计算结果和实验得出的刀具的磨损速率的比较，可以看出两者的结论是一致的。在这个基础上，可以知道怎样去制造一种粗加工时使半加工余料变薄的刀具，从而促使精加工时刀具的磨损速率一致。一种相似的技术正被应用于许多机器的加工过程中，而多种成型刀具也是被用于这些技术上。
 [关键字]：螺杆压缩机；螺旋转子；制造刀具
1．介绍：
 螺杆压缩机属于正排气量的回转式容积机器，它主要由一对啮合的螺旋转子组成，转子在机壳内做回转运动，它的容积随着转子的旋转而发生变化。今天的螺杆转子主要被造成盘型，来用于铣削或者磨削加工。无论是哪种形式加工出来的转子，可以用转子的坐标系来定义它们的几何特性，如图1所示。 要使螺杆压缩机运行良好，转子必须啮合得恰当，且在整个转子接触线中要保留一定的密封。这就要求有适合这种加工的刀具，且必须由合理的啮合

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