Variable loading roller

Patent · Sun Jan 01 04:00:00 EST 1989

OSTI ID:867016

Williams, Daniel M ^[1]

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1. Oliver Springs, TN

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.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4841792
• OSTI ID: 867016
• Country of Publication: United States
• Language: English

Related Subjects

/476/74/
arm
automatic
ball
ball bearing
bearings
camming
coaxially
complementary
device
devices
drive
drive devices
driven
effect
engaging
force
grooves
helical
input
interacting
interconnected
joints
loading
loading roller
manipulator
manipulator arm
output
portion
portions
proportional
respective
response
resultant
roller
rotatable
rotating
rotation
shaft
surface
surface thereon
thereon
torque
traction
traction drive
translatable
translation
transmitted
transmitting
two-part
variable
variable load