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Combination bearing type large-specification movable elbow mechanism

A combined bearing and movable elbow technology, applied in drilling equipment, wellbore/well components, earth-moving drilling and production, etc., can solve the problems of limited bending structure, limited volume requirements, and large structural volume, etc. Diversified molding methods, wide adaptability and small volume

Pending Publication Date: 2020-08-28
YANTAI JEREH PETROLEUM EQUIP & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of structure that realizes the rotation function is large in volume, complex in structure, and difficult to assemble. It has high requirements for the length of the straight section in the elbow structure, and is suitable for small-sized swivel elbows.
When the size increases, due to the limited forming method and volume requirements of the elbow structure, the structure using rolling elements to realize the rotation function is no longer applicable

Method used

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  • Combination bearing type large-specification movable elbow mechanism
  • Combination bearing type large-specification movable elbow mechanism
  • Combination bearing type large-specification movable elbow mechanism

Examples

Experimental program
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Embodiment Construction

[0026] Such as Figures 1 to 4 As shown, a combined bearing type large-size swivel elbow mechanism, a combined bearing type large-size swivel elbow mechanism includes an elbow 1, a connecting head 13, a gland 11, a packing seal assembly 2 and a rotating assembly. Between the elbow 1 and the connector 13, the elbow 1 and the elbow 1 are fixedly connected by the gland 11 and sealed by the packing seal assembly 2. Between the gland 11 and the connector 13, the gland 11 A cavity is formed between the elbow and the elbow 1, and a rotating assembly is installed in the cavity. The rotating assembly is used to connect the head 13 or the relative rotation of the elbow 1. The rotating assembly includes a radial bearing 10 and a thrust bearing 9, so The flexible connection between the elbow 1 and the connecting head 13 and between the elbow 1 and the elbow 1 is described. Different numbers of elbows 1 are connected according to actual needs. According to the different distance differen...

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Abstract

The invention discloses a combination bearing type large-specification movable elbow mechanism. The combination bearing type large-specification movable elbow mechanism comprises elbows, connection heads, a pressing cover, a packing seal component and a rotating component, wherein positions between the elbows and the connection heads as wall as between the elbows are fixedly connected through thepressing cover and are sealed through the packing seal component, cavities are formed at the positions between pressing cover and the connection heads as wall as between the pressing cover and the elbows and are internally provided with the rotating component, the rotating component is used for relative rotating of the connection heads or the elbows and comprises a centripetal bearing and a thrustbearing, and the elbows and the connection heads as wall as the elbows are flexibly connected. The combination bearing type large-specification movable elbow mechanism has the beneficial effects thatthe combination bearing type large-specification movable elbow mechanism is flexible in connection, smooth in rotating, simple in structure, not limited by the pipe diameter, also not limited by theelbow structure molding method, small in volume and diversified in molding method.

Description

technical field [0001] The invention relates to the technical field of manifold connections, in particular to a combined bearing type large-size swivel elbow mechanism. Background technique [0002] The original swivel elbow structure is generally designed with multiple grooves, and a certain number of rolling elements are installed inside the grooves to realize the relative rotation of the joints at both ends around the axis; the rolling elements in each groove are installed from their respective mounting holes. , Each mounting hole is designed with a plug and a retaining ring to prevent the rolling elements from falling apart during rotation. The structure for realizing the rotation function is large in size, complex in structure, and difficult to assemble. It has high requirements on the length of the straight section in the elbow structure, and is suitable for small-sized swivel elbows. When the size increases, due to the limited forming method and volume requirements o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/00E21B17/02E21B33/03
CPCE21B17/00E21B17/02E21B33/03
Inventor 任光辉黄金领王新明张树林许世朋
Owner YANTAI JEREH PETROLEUM EQUIP & TECH CO LTD
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