Torque sensing assembly having dual stage spring compression...

Details Torque sensing assembly having dual stage spring compression... Torque sensing assembly having dual stage spring compression...

A - Human Necessities

01

B

A01B 76/00 (2006.01) A01B 71/00 (2006.01) A01D 41/127 (2006.01) F16F 1/44 (2006.01)

Patent

CA 2554087

A torque sensing assembly includes an axially fixed sheave having an axis of rotation, and an axially movable sheave movable along the axis in relation to the axially fixed sheave. A compression spring has a first end and a second end, with the first end being positioned to engage the axially movable sheave. A dual stage spring compression mechanism has a spring retainer that engages the second end of the compression spring. The dual stage spring compression mechanism is connected to the axially fixed sheave. The dual stage spring compression mechanism has a first stage compression device that compresses the compression spring by a first preload amount and a second stage compression device that compresses the compression spring by a second preload amount.

Détecteur de couple comprenant une poulie axialement fixe comportant un axe de rotation et une poulie axialement mobile par rapport à la poulie axialement fixe. Un ressort de compression comprend une première extrémité et une seconde extrémité, la première extrémité étant positionnée de façon à entrer en prise avec la poulie mobile. Un mécanisme de compression de ressort bi-étagée comprend un dispositif de retenue en prise avec la seconde extrémité du ressort de compression. Le mécanisme de compression de ressort bi-étagée est relié à la poulie axialement fixe. Le mécanisme de compression de ressort bi-étagée comprend un dispositif de compression de premier étage qui applique une première précharge sur le ressort de compression ainsi qu'un dispositif de compression de second étage qui applique une seconde précharge sur le ressort de compression.

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