| 摘要 |
PURPOSE: An elongation rate measurement apparatus for a chain is provided to precisely and easily measure elongation rate of the chain with respect to a part or a whole length of the chain by using one elongation rate measurement apparatus. CONSTITUTION: An elongation rate measurement apparatus for a chain includes first and second sprockets(10,20) for supporting a chain(11), a first step motor(30) for supplying rotational force to the first and second sprockets(10,20), a position adjustment member for adjusting a position of the second sprocket(20), a load cell(50) for measuring tension of the chain(11), and a displacement measurement unit(60) for measuring elongation rate of the chain(11). The first sprocket(10) is fixedly coupled to the chain(11) and the second sprocket(20) is movably coupled to the chain(11). The first step motor(30) is installed on the first and second sprockets(10,20), respectively.
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