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CROSSHEAD LIFT UNIT FOR MATERIAL TESTER, CROSSHEAD LIFT MECHANISM FOR MATERIAL TESTER HAVING SAID UNIT AND MATERIAL TESTER
CROSSHEAD LIFT UNIT FOR MATERIAL TESTER, CROSSHEAD LIFT MECHANISM FOR MATERIAL TESTER HAVING SAID UNIT AND MATERIAL TESTER
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机译:材料试验机的十字头升降装置,具有所述装置的材料试验机的十字头升降装置和材料试验机
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摘要
PURPOSE:To simplify constitution by enabling the unitization of a crosshead lift mechanism part, by converting the rotary motion of a driving force generation and transmission apparatus to linear motion, and raising and falling a crosshead through a lead screw. CONSTITUTION:A test piece 198 is placed in a pressure container 180 by a meterial tester for testing a constant strain speed, and tensile and compression pressures are repeatedly loaded and load is detected by a load cell 209 while elongation is detected by a defferential transformer 213 to calculate a stress-strain curve. A crosshead lift mechanism converts rotary motion by a driving force generation unit 190 (motor) and a driving force transmission unit 191-193 (gear box) to linear motion through the crosshead lift unit 194 thereof and a movable crosshead 208 is raised and fallent by a lead screw 207. By this mechanism, the crosshead lift mechanism can be unitized and a test can be applied to a plurality of test pieces under different load conditions.
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