Sheave knurling tool and method of operating

Patent metadata

Field	Value
Publication number	US-11344944-B2
Application number	US-201916654903-A
Country	US
Kind code	B2
Filing date	Oct 16, 2019
Priority date	Aug 30, 2016
Publication date	May 31, 2022
Grant date	May 31, 2022

Abstract

A method of imprinting a belt sheave without removal of an associated belt includes placing a knurling wheel of a tool against a circumferentially extending section of a sheave not in contact with the belt. The sheave is then rotated to induce rotation of the knurling wheel. A jack screw of the tool is actuated to bias the knurling wheel against the sheave for production of imprints upon the sheave.

First claim

What is claimed is:

1. A method of imprinting a belt sheave without removal of an associated belt frictionally engaged with the belt sheave, the method comprising:
placing a first knurling wheel of a tool against a circumferentially extending section of the belt sheave not in contact with the belt;
rotating the belt sheave;
biasing the first knurling wheel against the belt sheave; and
actuating a jack screw of the tool to bias the first knurling wheel against the belt sheave, thereby inducing rotation of the first knurling wheel by the rotating belt sheave and inducing the production of friction producing imprints upon the belt sheave for increasing friction between the belt and the belt sheave.

2. The method set forth in claim 1 , wherein the first knurling wheel is biased against an exposed section of a cylindrical section of the belt sheave.

3. The method set forth in claim 1 , wherein the tool is placed between two belt segments of the belt and beneath the belt sheave.

4. The method set forth in claim 1 , further comprising:
mounting a body of the tool to a support structure upon which the belt sheave is rotationally engaged.

5. The method set forth in claim 4 , wherein actuating the jack screw pivots an arm with respect to the jack screw about a first pivot axis, wherein the arm is pivotally connected to the body.

6. The method set forth in claim 5 , wherein actuating the jack screw pivots the arm with respect to the body about a second pivot axis.

7. The method set forth in claim 1 , wherein a second knurling wheel is biased against the belt sheave.

8. The method set forth in claim 7 , further comprising:
mounting a body of the tool to a support structure upon which the belt sheave is rotationally engaged.

9. The method set forth in claim 8 , further comprising:
pivoting a carrier with respect to an arm as the jack screw pivots the arm with respect to the body, wherein the first and second knurling wheels are rotationally engaged to the carrier, wherein the arm is pivotally connected to the body.

10. The method set forth in claim 9 , wherein actuating the jack screw pivots the arm with respect to the jack screw about a first pivot axis.

11. The method set forth in claim 10 , wherein actuating the jack screw pivots the arm with respect to the body about a second pivot axis.

Assignees

• Otis Elevator Co

Inventors

• Martin Kyle B
• Lanesey David J

Classifications

• B66B15/04

  Friction sheaves; "Koepe" pulleys · CPC title

• B21H7/14 Primary

  knurled articles · CPC title

• B23P9/02 Primary

  Treating or finishing by applying pressure, e.g. knurling (B23P9/04 takes precedence) · CPC title

• F16H55/38

  Means or measures for increasing adhesion · CPC title

• B23P6/00

  Restoring or reconditioning objects (straightening or restoring form of sheet metal, metal rods, metal tubes, metal profiles, or specific articles made therefrom B21D1/00, B21D3/00; repairing defective or damaged objects by casting techniques B22D19/10) · CPC title