Rotary to linear torque transmission device
AssigneeNexen Group, Inc.
InventorsAnthony Will Kliber, Isaac Kenneth Klaehn, Daniel Robert Berge
Life of this patent
Estimating the term…
Abstract
A torque transmission device has a pinion that includes a plurality of rollers that mesh with a plurality of teeth of an output. Each roller is supported by a bearing having rotating bearing elements. A clearance compensation for the diametrical difference between a diameter of each roller and an inscribed diameter of the associated rotating bearing elements is included in the plurality of teeth of the output such that there is no interference between the plurality of rollers and the plurality of teeth.
Claims7
A torque transmission device comprising, in combination:
- an output having teeth;
- and
- a pinion having a plurality of rollers that mesh with the teeth of the output,
- wherein each of the plurality of rollers is supported by an associated bearing having rotating bearing elements and each bearing includes a clearance between the roller and the rotating bearing elements,
- wherein the clearance creates an interference between at least one roller of the plurality of rollers and at least one tooth of the teeth of the output, and
- wherein the teeth of the output are each formed with a profile that is offset by a clearance compensation that is equal to a diametrical difference between a diameter of each of the plurality of rollers and an inscribed diameter of the associated rotating bearing element.
A method of compensating for dimensional clearances in a torque transmission device, comprising:
- providing a rack having a plurality of teeth;
- providing a pinion having a plurality of rollers that mesh with the plurality of teeth of the rack;
- providing a bearing to rotationally support each roller of the plurality of rollers, with each bearing having rotating bearing elements, wherein the dimensional clearances are formed by each bearing including a dimensional clearance between each roller and the rotating bearing elements that creates an interference between at least one roller of the plurality of rollers and at least one tooth of the plurality of teeth of the rack;
- and
- providing a clearance compensation in a tooth profile of the plurality of teeth of the rack that is equal to a diametrical difference between a diameter of each roller of the plurality of rollers and an inscribed diameter of the rotating bearing elements of the plurality of rollers of the pinion.
Dependencies are inferred from the claim text.