算图又叫诺谟图,它是函数关系的几何表示。在计算精度允许的条件下,采用算图求解函数值,较之数学代入法、查表法等有简洁明了、易于掌握、使用方便、求解迅速、便于复核等特点。因而算图在工程设计中,特别是那些要化费大量时间和人力进行计算的部门,应用十分普及。如机械零件、机械传动和液压传动设计手册中都刊有许多组诺谟图谱。在凿岩机和冲击器设计中,常常要进行 Calculations, also known as nomograms, are geometric representations of the functional relationships. Calculated under the conditions of accuracy, the use of calculations to solve the function values, compared with the mathematical approach, look-up table, etc. have concise, easy to grasp, easy to use, quick solution, easy to review and so on. Therefore, the calculation of the project in engineering, especially those who want to spend a lot of time and manpower to calculate the department, the application is very popular. Many sets of nomograms are published in mechanical parts, mechanical drives, and hydraulic drive design manuals. In rock drill and impactor design, often to be carried out