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Bidirectional fully-sealed rotary joint for fluid conveying

A rotary joint and fluid delivery technology, applied in the direction of pipes/pipe joints/fittings, adjustable connections, passing components, etc., to achieve the effects of reducing friction, improving wear resistance, and improving rotation flexibility

Inactive Publication Date: 2013-12-11
PLA AIR FORCE OIL MATERIAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a two-way fully sealed rotary joint with compact structure, good sealing performance, long service life, no need for lubrication, and flexible rotation, so as to solve the shortcomings of existing rotary joints

Method used

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  • Bidirectional fully-sealed rotary joint for fluid conveying
  • Bidirectional fully-sealed rotary joint for fluid conveying
  • Bidirectional fully-sealed rotary joint for fluid conveying

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Embodiment Construction

[0013] The term "two-way" used in the present invention indicates that fluid can flow in through any end of the rotary joint and flow out from the other end without affecting the use effect of the rotary joint.

[0014] The term "full seal" used in the present invention indicates that the rotary joint adopts the multiple seal form of main seal and auxiliary seal, which can not only prevent internal fluid leakage, but also prevent external debris from entering the fluid interior.

[0015] A two-way fully sealed rotary joint, including a rotary shaft 1, a housing 2, loose balls 3, a main seal 4, a compression ring 5, auxiliary seals 61 and 62, set screws 7, and the like. Wherein, a groove is provided on the outer circumference of the rotating shaft 1, the groove is equipped with an auxiliary seal 61, the rotating shaft 1 is concentrically installed inside the housing 2, a raceway is provided between the housing 2 and the rotating shaft 1, and the raceway is equipped with The bal...

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Abstract

The invention discloses a bidirectional fully-sealed rotary joint for fluid conveying. The bidirectional fully-sealed rotary joint comprises a rotary shaft, a shell, balls in bulk, a primary seal, a compression ring, auxiliary seals and a set screw, wherein a groove is arranged in the outer circumference of the rotary shaft, one auxiliary seal is arranged in the groove, the rotary shaft and the shell are mounted concentrically, a roller way is arranged between the shell and the rotary shaft, the balls are mounted in the roller way, and the balls can be mounted and dismounted through a threaded hole and the set screw arranged on the roller way of the shell; the compression ring is arranged on the end surface of the upper part of the rotary shaft, the primary seal is arranged between the compression ring and the end surface of the upper part of the rotary shaft, and the primary seal is compressed by the primary seal; a groove is arranged in the end surface between the compression ring and the shell, and the other auxiliary seal is mounted in the groove. Therefore, the rotary joint provided by the invention has the characteristics that the structure is compact, the sealing performance is good, the service life is long, no lubrication is needed, the rotation is flexible and the like.

Description

technical field [0001] The invention relates to a rotary joint for fluid transportation, which is especially suitable for some transportation environments with extremely strict requirements on fluid quality, such as aviation fuel transportation. Background technique [0002] The rotary joint is a key part of many fluid conveying equipment. Its main function is to connect the fluid conveying pipeline with the equipment that rotates, reciprocates or swings at a certain angle. While ensuring the operation of the equipment and the pipeline, it can also realize continuous flow of fluid. delivery. [0003] At present, there are many types of rotary joints used in the market. Usually, the composition mainly includes the rotating shaft, housing, seals and bulk balls, etc.; in terms of material selection, the rotating shaft and housing are usually made of aluminum alloy or cast steel, and the balls are made of steel balls; in the selection of seals, usually use O-shaped rubber seal...

Claims

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Application Information

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IPC IPC(8): F16L27/08
Inventor 涂华明韩燕喜
Owner PLA AIR FORCE OIL MATERIAL RES INST
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