LOAD MEASURING APPARATUS FOR ROLLING BEARING UNIT

• Main Author: TAKIZAWA TAKESHI
• Format: Patent
• Language: English
• Published: 24.11.2006
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; BEARINGS; BLASTING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; MEASURING QUANTITY OF HEAT; MEASURING TEMPERATURE; MECHANICAL ENGINEERING; PHYSICS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; TARIFF METERING APPARATUS; TESTING; THERMAL INSULATION IN GENERAL; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR; WEAPONS

PROBLEM TO BE SOLVED: To provide a structure capable of suppressing the effects of changes in the rigidity of rolling bearing units with changes in temperature and accurately determining loads exerted on the rolling bearing units. SOLUTION: The amount of displacement in axial directions between an outer race 1 and a hub 2 is determined on the basis of the phase difference between detection signals of a pair of Hall ICs 11a and 11b. An axial load acting between the outer race 1 and the hub 2 is determined on the basis of this amount of displacement. The temperature of the outer race 1 is measured to remove the effects of changes in the rigidity of rolling bearing units with changes in temperature. COPYRIGHT: (C)2007,JPO&INPIT