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US 11,486,448 B2Granted
Hub and secondary driving element shaft locking system
AssigneeWestern Diesel Services, Inc.
InventorJeffery Miller
Life of this patent
Estimating the term…
Abstract
A drive hub includes a body and lugs that extend radially from the body and are engageable with a primemover of a primary power source. The lugs have a fastening lug that includes a radially extending bore. A hybrid, single piece setscrew extends within the bore and has a hemispherical portion configured to apply pressure to engage the drive hub to a shaft of a secondary power source.
Claims17
A drive hub for engagement with a shaft of a secondary power source to transfer energy from a primary driving element, comprising:
- a body portion having an inner periphery engageable with the shaft of the secondary power source, wherein the body portion is intended to communicate with a primary driving element to effectuate rotation thereof;
- at least one radially extending bore formed in the body portion, and having an end spaced from the inner periphery by a separation wall;
- and
- at least one single piece hybrid setscrew comprising a threaded shank having a first diameter, a transition portion extending from the threaded shank and tapering to a second diameter less than the first diameter, and a hemispherical bearing portion projecting outward from the transition portion, the hemispherical bearing portion having a radius of one half the second diameter, the threaded shank, transition portion, and hemispherical bearing portion forming a single body from a single piece of material, the single piece hybrid setscrew extending within the at least one radially extending bore, and having a bearing portion that applies pressure to the separation wall, and to the shaft of the secondary power source that is received within the inner periphery to effectuate constant engagement between the drive hub and the shaft.
1 more element
A drive hub for engagement with a shaft of a secondary power source, comprising:
- a body portion having an inner periphery and an outer periphery, and comprising a plurality of uniformly spaced outwardly extending lugs;
- the body portion being engageable with the shaft of the secondary power source to effectuate rotation thereof
- at least one first radially extending bore formed in at least one of the plurality of uniformly spaced outwardly extending lugs, the at least one radially extending bore having an open end adjacent the outer periphery and a closed end adjacent the inner periphery, the closed end having a substantially flat bottom surface;
- at least one second radially extending bore formed in the body portion, and having an end spaced from the inner periphery by a separation wall;
- and
- at least one single piece hybrid setscrew comprising a threaded shank having a first diameter, a transition portion extending from the threaded shank and tapering to a second diameter less than the first diameter, and a hemispherical bearing portion projecting outward from the transition portion, the hemispherical bearing portion having a radius of one half of the second diameter, the threaded shank, transition portion, and hemispherical bearing portion forming a single body from a single piece of material, the single piece hybrid setscrew extending within the at least one first and second radially extending bores, and having a bearing portion that applies pressure to the separation wall, and to the shaft of the secondary power source that is received within the inner periphery to effectuate constant engagement between the hub and the shaft;
- whereby the drive hub is securely engaged to the shaft while minimizing damage to the shaft.
4 more elements
A hybrid set screw for a drive hub comprising:
- a threaded shank having a first diameter;
- a transition portion extending from the threaded shank and tapering to a second diameter less than the first diameter;
- and
- a bearing portion extending from the transition portion and having the second diameter;
- wherein the threaded shank, the transition portion, and the bearing portion form a single body from a single piece of material;
- and
- wherein the bearing portion is hemispherical with a radius that is half of the second diameter.
4 more elements
Dependencies are inferred from the claim text.