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Temporary repair device for mechanical drive couplings

Inactive Publication Date: 2005-03-17
NEFF PHILIP E
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006] Accordingly, it is an object of the present invention to provide a temporary repair device for a flexible drive coupling which is durable and capable of maintaining relative movement between the coupling hub and the coupling shell.
[0007] It is a further object of the present invention to provide a temporary repair device for a flexible drive coupling that may be installed on a failed drive coupling without disassembling the components which are drivingly interconnected.
[0008] It is another object of the present invention to provide a repair device for a flexible drive coupling which is economical to stock or manufacture and easy to install.

Problems solved by technology

While these gear type flexible drive couplings have performed sufficiently in the past, concerns arise.
The failure is usually due to friction created from excessive misalignment, lack of lubrication or both.
Unfortunately, a new coupling is often not available due to the variety of coupling types and sizes used.
Furthermore, the cost of maintaining a complete selection of service stock is prohibitive.
This repair eliminates any flexibility in the joint and usually fails within a very short period of time.
This repair typically does not perform well and suffers repeated breakdowns.

Method used

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  • Temporary repair device for mechanical drive couplings
  • Temporary repair device for mechanical drive couplings
  • Temporary repair device for mechanical drive couplings

Examples

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Embodiment Construction

[0025] The following description of the preferred embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.

[0026]FIGS. 1 and 2 depict an exemplary flexible drive coupling 8 having a temporary repair device 10 coupled thereto. Drive coupling 8 includes a rigid half 12 and a flexible half 14 interconnected by a plurality of threaded fasteners 16. Rigid half 12 includes a generally cylindrical body 18 having a flange 20 radially extending therefrom. Flange 20 includes a plurality of apertures 22 for receipt of threaded fasteners 16. A bore 24 extends axially through body 18. Bore 24 is sized for receipt of a first shaft 26. First shaft 26 is positioned within bore 24 and drivingly coupled to rigid half 12 via a drive key or other standard shaft fastening device, not shown. A recess 28 extends inwardly from a mounting face 30 of flange 20. Recess 28 is in communication with bore 24.

[0027] Flexible half 14 includes a shell 32 a...

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PUM

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Abstract

A repair device for a flexible drive coupling having a shell and a hub includes a first member fixed to the shell and a second member fixed to the hub. The first member includes a slot. A portion of the second member extends from the hub and is slidably positioned within the slot. The first and second members are drivingly engageable with one another to transfer torque between the shell and the hub while allowing the hub and shell to move relative to one another.

Description

BACKGROUND AND SUMMARY OF THE INVENTION [0001] The present invention relates to mechanical drive couplings and, more particularly, to a temporary repair device for mechanical drive couplings. [0002] Mechanical drive couplings are often used to provide a driving connection between power supplies such as a motor and mechanisms to be driven, such as a pump, a gear reduction unit or the like. Based on the difficulty of exactly aligning the components of such systems, flexible drive couplings are used to accommodate reasonable degrees of non-alignment between the shaft members of the power source and the driven component. [0003] One type of flexible drive coupling includes a rigid half and a flexible half. The flexible half is fixed to either the driving or driven shaft and rotates about the centerline of the shaft to which it is connected. The flexible half is a two-part assembly including a coupling shell and a coupling hub. The coupling shell is fixed to the rigid half. The coupling h...

Claims

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Application Information

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IPC IPC(8): F16D3/16F16D3/18
CPCF16D3/16Y10T403/16F16D3/185
Inventor NEFF, PHILIP E.
Owner NEFF PHILIP E