Drive device, travel device, and drive device control method

Details Drive device, travel device, and drive device control method Drive device, travel device, and drive device control method

2011-01-11

2011-01-11

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Positional servo systems

With protective or reliability increasing features

C318S563000, C318S560000

Reexamination Certificate

active

07868576

ABSTRACT:
The present invention may be applied to a drive device, a travel device, and a drive device control method which are suitable for use in a robot arm and a twin cycle, for example. By eliminating (reducing) the opportunity of the use exceeding a rated torque of a servo motor, it is possible to increase the machine reliability and set an appropriate safety factor so as to reduce device costs. The operation value during the actual machine operation obtained by {(effective torque)2−(rated torque)2}*(elapsed time from start) is compared with a value based on the rated torque, and the system driving is stopped and/or an alarm is started.

REFERENCES:
patent: 6333613 (2001-12-01), Watanabe et al.
patent: 6690136 (2004-02-01), Matsumoto et al.
patent: 9 128031 (1997-05-01), None
patent: 2002 99314 (2002-04-01), None
patent: 2002 323915 (2002-11-01), None
patent: 2004 510637 (2004-04-01), None
patent: 2004 320921 (2004-11-01), None

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