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Title: Variable loading roller

Abstract

An automatic loading roller for transmitting torque in traction drive devices in manipulator arm joints includes a two-part camming device having a first cam portion rotatable in place on a shaft by an input torque and a second cam portion coaxially rotatable and translatable having a rotating drive surface thereon for engaging the driven surface of an output roller with a resultant force proportional to the torque transmitted. Complementary helical grooves on the respective cam portions interconnected through ball bearings interacting with those grooves effect the rotation and translation of the second cam portion in response to rotation of the first.

Inventors:
 [1]
  1. (Oliver Springs, TN)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
OSTI Identifier:
867016
Patent Number(s):
US 4841792
Assignee:
United States of America as represented by United States (Washington, DC) ORNL
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
variable; loading; roller; automatic; transmitting; torque; traction; drive; devices; manipulator; arm; joints; two-part; camming; device; portion; rotatable; shaft; input; coaxially; translatable; rotating; surface; thereon; engaging; driven; output; resultant; force; proportional; transmitted; complementary; helical; grooves; respective; portions; interconnected; ball; bearings; interacting; effect; rotation; translation; response; manipulator arm; traction drive; surface thereon; variable load; ball bearing; drive devices; loading roller; /476/74/

Citation Formats

Williams, Daniel M. Variable loading roller. United States: N. p., 1989. Web.
Williams, Daniel M. Variable loading roller. United States.
Williams, Daniel M. Sun . "Variable loading roller". United States. doi:. https://www.osti.gov/servlets/purl/867016.
@article{osti_867016,
title = {Variable loading roller},
author = {Williams, Daniel M.},
abstractNote = {An automatic loading roller for transmitting torque in traction drive devices in manipulator arm joints includes a two-part camming device having a first cam portion rotatable in place on a shaft by an input torque and a second cam portion coaxially rotatable and translatable having a rotating drive surface thereon for engaging the driven surface of an output roller with a resultant force proportional to the torque transmitted. Complementary helical grooves on the respective cam portions interconnected through ball bearings interacting with those grooves effect the rotation and translation of the second cam portion in response to rotation of the first.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1989},
month = {Sun Jan 01 00:00:00 EST 1989}
}

Patent:

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