Measuring and testing – Dynamometers – Responsive to multiple loads or load components
Patent
1985-04-18
1987-03-17
Ruehl, Charles A.
Measuring and testing
Dynamometers
Responsive to multiple loads or load components
73 1C, 73104, 7386212, G01L 516, G01L 318
Patent
active
046497579
ABSTRACT:
Device for calibrating a machine tool including a tool (32) rotating about its axis XX', comprising a tubular-shaped support with an annular fixing component (3) connecting it to the housing (1) of the machine tool so that its central opening forms an extension of the opening (2) of the housing (1) for the passage of the tool (32). The support also has at least one part (18) which is deformable under the action of twisting about the axis XX' and is provided with at least one strain gauge (19), and an end part (12) which is opposite the fixing component (3) and in which there is arranged, along the axis of the support, a component (20) for connecting the end of the tool (32), which component is provided with means (20') enabling locking of said tool in rotation with the connection component. The latter carries a disk (30) located between two annular components (31a and 31b) held against the disk (30 ) by adjustable means (22, 25). As a result of a measuring means associated with the strain gauge (19), a current representing the resisting torque opposing the tool (32) may be measured via the disk (30) and the components (31a and 31b). The invention relates, in particular, to machines for screwing the partitioning of a nuclear reactor core.
REFERENCES:
patent: 3382710 (1968-05-01), Aubeges et al.
patent: 3457780 (1969-07-01), Agostini
patent: 4090403 (1978-05-01), Tsukada et al.
patent: 4178799 (1979-12-01), Schmieder et al.
patent: 4483177 (1984-11-01), McIntyre et al.
patent: 4485681 (1984-12-01), Hatamura
V. A. Bobrovskii, "Two-Part Dynamometer with Variable Ranges for Cutting Force Components", Russian Eng.'ring Journal, vol. 48, No. 8, 1968, pp. 55-57.
Framatome & Cie.
Ruehl Charles A.
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