Title:
DIAGNOSTIC DEVICE FOR LINK ACTUATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/051866
Kind Code:
A1
Abstract:
A diagnostic device for a link actuation device is provided such that even when play such as backlash occurs in a drive train, deterioration of a component can be accurately detected and notified to a user before the link actuation device becomes unusable due, for example, to damage. The diagnostic device is applied to a link actuation device (1) in which a tip-end-side link hub (15) is linked to a base-end-side link hub (14) so as to be able to change the orientation thereof via three or more sets of link mechanisms (11-13), and an actuator (30) is provided on each of the link mechanisms (11-13), whereby a predetermined operation is performed under a predetermined condition by driving the respective actuators (30). In addition, the diagnostic device is provided with: a preloading unit (52) for preloading the link actuation device (1); a torque detection unit (53) for detecting the driving torque of each of the actuators (30) in the preloaded state; a determination unit (54) for determining whether or not the torque detected by the torque detection unit (53) is within a predetermined range; and a notification unit (56) for notifying the determination result.
Inventors:
MARUI NAOKI (JP)
ISOBE HIROSHI (JP)
NISHIO YUKIHIRO (JP)
SAKATA SEIGO (JP)
ISOBE HIROSHI (JP)
NISHIO YUKIHIRO (JP)
SAKATA SEIGO (JP)
Application Number:
PCT/JP2016/078005
Publication Date:
March 30, 2017
Filing Date:
September 23, 2016
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
B25J11/00; F16H21/46
Foreign References:
| JP2005226777A | 2005-08-25 | |||
| JP2007301680A | 2007-11-22 | |||
| JP2012061535A | 2012-03-29 |
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (JP)
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