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Metal Working

Securing-nut-apparatus

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Securing nut apparatus

Details

Inventors: Levenstein, Victor M.;
Assignee: Dresser Industries, Inc. (Dallas, TX)
Primary Examiner: Wilson; Neill R.
Assistant Examiner:
Attorney, Agent or Firm: Yao; Joseph T.

A securing nut apparatus for detachably connecting and clamping a machine component onto a shaft includes a nut hub body having a threaded main bore and a nut outer ring. The nut outer ring cooperates with the nut hub body threadably engaged to the shaft to provide a uniform clamping force to the machine component. A plurality of screws couple the nut outer ring with the nut hub body. A threaded engagement between the screws and threaded openings of the nut hub body forces the nut outer ring therebetween into a high uniform clamping force against the machine component.

DETAILED DESCRIPTION It is an object of this invention to provide high uniform clamping force to a machine component mounted on a shaft through a mechanical securing nut apparatus.
It is a feature of the invention to include a nut hub body which threadably engages a shaft and a nut outer ring which cooperates with the nut hub body to provide a uniform clamping force to the machine component.
It is an additional feature of the invention to have a plurality of screws work in tension with threaded holes of the nut hub body and force the nut outer ring into a high uniform clamping force against the machine component.
It is an advantage of this invention that when a securing nut apparatus is subjected to variable loads and vibration, the nut apparatus remains securely threaded to the shaft and provides high uniform clamping force to the machine component.
A securing nut apparatus in accordance with the present invention includes a nut hub body having a threaded main bore adapted to be received over the threaded shank of a shaft and a flange portion having a plurality of threaded holes.
The nut apparatus also includes a nut outer ring having a plurality of bores in alignment with the threaded holes of the nut hub body and an annular sidewall overlapping the flange portion of the nut hub body.
A plurality of cap screws are disposed within the bores of the nut outer ring and the threaded holes of the nut hub body.
In accordance with an important aspect of the invention, the tightening of the screws into the threaded holes of the nut hub body forces the annular sidewall of the nut outer ring therebetween, to apply a high uniform clamping force against the machine component mounted on the shaft.
The fact that the force is a result of tension between the screws and threaded holes, permits the use of standard screws in this invention.
Other objects, features and advantages of the invention will be apparent in the following description and claims in which the invention is described, together with details to enable persons skilled in the art to practice the invention, all in connection with the best mode presently contemplated for the invention

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