Universal Sheave Wheel Adapter
First Claim
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1. An assembly comprising:
- an oilwell rig;
a sheave wheel adapter connected to the rig;
a sheave wheel yoke connected to the adapter; and
a sheave wheel connected to the yoke;
wherein the wheel is permitted to rotate about three mutually perpendicular planes of motion.
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Abstract
An assembly is provided that includes an oilwell rig; a sheave wheel adapter connected to the rig; a sheave wheel yoke connected to the adapter; and a sheave wheel connected to the yoke. In various embodiments of the invention, this assembly is configured to permit the wheel to rotate about three mutually perpendicular planes of motion.
23 Citations
15 Claims
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1. An assembly comprising:
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an oilwell rig; a sheave wheel adapter connected to the rig; a sheave wheel yoke connected to the adapter; and a sheave wheel connected to the yoke; wherein the wheel is permitted to rotate about three mutually perpendicular planes of motion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An assembly comprising:
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an oilwell rig; a sheave wheel; a sheave wheel yoke comprising an upper portion and a lower portion;
wherein said lower portion is connected to an axel of the wheel; anda sheave wheel adapter comprising; an upper portion comprising a first attachment mechanism which connects the adapter to the rig; a lower portion comprising a second attachment mechanism which connects the adapter to the upper portion of the yoke; and a coupling mechanism which connects the upper portion of the adapter to the lower portion of the adapter, wherein the wheel is permitted to rotate about three mutually perpendicular planes of motion; wherein the adapter is configured to allow the wheel to rotate about both a first plane of motion and a second plane of motion of said three mutually perpendicular planes of motion; and wherein the yoke is configured to allow the wheel to rotate about a third plane of motion of said three mutually perpendicular planes of motion. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification