螺丝螺纹 - 工程实验室培训系统效率

型号HV-EXP5735
低成本特性,有效教学自备壁挂式简易机械入门速比的测定机械优势和效率方型和v型螺纹的比较效率三年保修实验范围速比的实验测定与计算值的比较变化量的测定with load of: effort friction efficiency Limiting efficiency of the machine Comparison of relative efficiency of Vee and Square thread forms Description This is a simple wall mounted apparatus supplied with three interchangeable screw and nut assemblies. Load is applied to a weight hanger attached directly to the screw and the effort torque is applied by a weighted hanger and cord passing over a low friction ball bearing pulley. This equipment is part of a range designed to both demonstrate and experimentally confirm basic engineering principles. Great care has been given to each item so as to provide wide experimental scope without unduly complicating or compromising the design. Each piece of apparatus is self-contained and compact. Setting up time is minimal, and all measurements are made with the simplest possible instrumentation, so that the student involvement is purely with the engineering principles being taught. A complete instruction manual is provided describing the apparatus, its application, experimental procedure and typical test results..