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Overload Safety Ring for a Strain-Gauge Load Cell
A ring under Ruge's piston, set a hair below it: past the safe load the piston lands on it and the excess goes straight to the base. The gauge leads pass through a hole in it.
中级
A few hours
说明
1
1
Watch: boring a hole on a lathe
Watch: boring a hole on a lathe
Boring a hole step by step on a metal lathe.
2
2
Turn and bore the ring
Turn and bore the ring
Turn a short length of round bar to fit inside the shell and bore it to clear the column.
此步骤所需材料：
低碳钢圆棒1 个所需工具：
钢锯
金属车床
镗杆
切削油3
3
Face to height, drill the lead hole
Face to height, drill the lead hole
Face it to height so the piston clears it by a small gap at full load. Drill a side hole for the gauge leads.
所需工具：
金属车床
台钻
千分尺4
4
Limits
Limits
Ruge's patent gives the part's shape and job but no material or size. Mild steel and silver-solder brazing are our choice; size it to the load you need. Lathe method after Palmateer, Elementary Machine Shop Practice (1918). The gap sets the overload point.
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