CN203052023U - Conical surface seal lock-wire-free self-locking pipe joint structure - Google Patents

Conical surface seal lock-wire-free self-locking pipe joint structure Download PDF

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Publication number
CN203052023U
CN203052023U CN 201320001339 CN201320001339U CN203052023U CN 203052023 U CN203052023 U CN 203052023U CN 201320001339 CN201320001339 CN 201320001339 CN 201320001339 U CN201320001339 U CN 201320001339U CN 203052023 U CN203052023 U CN 203052023U
Authority
CN
China
Prior art keywords
self
locking
conical
pipe joint
seal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201320001339
Other languages
Chinese (zh)
Inventor
石峰
李健
贾智元
邱明星
田静
吕春光
刘宇
张仕东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AVIC Shenyang Engine Design and Research Institute
Original Assignee
AVIC Shenyang Engine Design and Research Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AVIC Shenyang Engine Design and Research Institute filed Critical AVIC Shenyang Engine Design and Research Institute
Priority to CN 201320001339 priority Critical patent/CN203052023U/en
Application granted granted Critical
Publication of CN203052023U publication Critical patent/CN203052023U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A conical surface seal lock-wire-free self-locking pipe joint structure comprises a conduit, a flat nozzle, an external cone connector, a self-locking sleeve nut, an elastic piece, and a clamp groove, wherein the flat nozzle and the external cone connector are respectively welded on the conduit in an argon arc welding mode, and a 74-degree conical-surface seal connecting structure mode is adopted. A structure including a groove is arranged on a column section of the external cone connector. The self-locking sleeve nut comprises a structure capable of stretching out of the elastic piece. The self-locking sleeve nut and the external cone connector are screwed through threads and press the flat nozzle at the same time, the elastic piece on the self-locking sleeve nut is clamped inside the clamp groove of the external conical connector to form a self-locking structure, and therefore a 74-degree conical-surface seal lock-wire-free self-locking pipe joint structure is integrally formed. The conical surface lock-wire-free self-locking pipe joint structure has the advantages that a lock wire is cancelled, the locking function and the sealing function are achieved at the same time through structures of the connector and the nut, the locking structure ensures reliability of sealing, and maintenance time of an engine is reduced.

Description

A kind of conical surface seal does not have lock silk self-locking pipe joint structure
Technical field
The utility model relates to the aeroengine field, particularly a kind of conical surface seal do not have a lock silk self-locking pipe joint structure.
Background technique
The design of aeroengine external pipeline system is the comprehensive Design technology of a multi-door subject such as fusion structure design, intensive analysis, reliability and maintenance, and pipe joint is the crucial constituting component of whole pipe-line system, selecting not only reliable operation but also install and remove the high novel pipe joint of efficient for motor of new generation is the key of lift line system reliability and maintainability, also will greatly promote viability and the fighting capacity of aeroengine.
The conventional construction of engine pipelines connection at present adopts multiple pipeline connecting structures such as the conical surface, plug-in type, flange-type more, and the seal form great majority of these connecting structures also are to adopt the conical surface to compress or this dual mode of rubber sealing, and these mode of structure all need to prevent the thread connecting joint dilapidated sealing configuration that occurs getting loose by the lock silk simultaneously.Locking wire lock tightly is a corresponding part design lock silk hole at the pipe joint two ends, tightening after assembling finishes, refills and joins locking lock silk.This kind locking disconnecting prevention structure, need to rely on the motion that gets loose of lock silk limiting joint two end nuts, the higher requirement that is equipped with to the lock silk, assembly direction is incorrect can not lock anticreep for lock silk, the lock silk can not assemble tension or loose excessively, the fracture easily in engine working process of lock silk tension, and the lock silk is crossed pine can not play corresponding effect, the lock silk needs special-purpose instrument to assemble and decomposes simultaneously, and the dismounting of lock silk is extremely wasted time and energy.Because the outside a large amount of modes of using safety fuse cutout locking caption nut of aeroengine make the pipeline assembling and dissembling process expend a large amount of time, under the efficiency of assembling, can not satisfy modern advanced aeroengine to the requirement of assembling, maintainability.
Design a kind of conical surface seal does not have lock silk from locking pipe joint for this reason, and finally to cancel the pipeline locking wire lock tight for aeroengine, improves reliability and maintainability and establish solid theory.
The model utility content
The purpose of this utility model is in order to overcome the deficiencies in the prior art part, and the spy provides a kind of conical surface seal not have a lock silk self-locking pipe joint structure.
The utility model provides a kind of conical surface seal not have lock silk self-locking pipe joint structure, it is characterized in that: described conical surface seal does not have lock silk self-locking pipe joint structure, comprises conduit 1, flat ozzle 2, outside cone joint 3, self-locking cap nut 4, spring sheet 5, draw-in groove 6;
Wherein: flat ozzle 2 and outside cone joint 3 adopt the argon arc welding mode to be welded on the conduit 1 respectively, and adopt 74 ° of conical surface seal connecting structure forms; It is the structure that contains draw-in groove 6 on the shell of column of outside cone joint 3; Self-locking cap nut 4 contains the structure of elasticity of extension sheet 5; Self-locking cap nut 4 and outside cone joint 3 compress flat ozzle 2 when tightening by screw thread, spring sheet 5 on the self-locking cap nut 4 is stuck in the draw-in groove 6 of outside cone joint 3, form self-locking structure, a kind of 74 ° of conical surface seals of whole formation do not have a lock silk self-locking pipe joint structure.
Advantage of the present utility model:
Conical surface seal described in the utility model does not have lock silk self-locking pipe joint structure, and cancellation lock silk is abutted against head and nut self structure and reaches locking and seal action simultaneously.Adding when nut screwing clamping moment satisfies pipe joint sealing surface seal request, the spring sheet of caption nut just plays the locking effect; In the working procedure, locking mechanism can guarantee the reliability that seals again.When satisfying its connection reliability, saved outside mounting or dismounting space, save the instrument that tradition is used for beating safety fuse cutout, reduce the mounting or dismounting time of exterior line, improve external mounting and maintainability greatly.No matter motor still is during use in the outfield at the test run stand, replacing associated pipe that can be very fast, thus greatly reduced the maintenance time of motor.
Description of drawings
Below in conjunction with drawings and the embodiments the utility model is described in further detail:
Fig. 1 does not have lock silk self-locking pipe joint structure sectional structure chart for conical surface seal.
Embodiment
Embodiment 1
Present embodiment provides a kind of conical surface seal not have lock silk self-locking pipe joint structure, it is characterized in that: described conical surface seal does not have lock silk self-locking pipe joint structure, comprises conduit 1, flat ozzle 2, outside cone joint 3, self-locking cap nut 4, spring sheet 5, draw-in groove 6;
Wherein: flat ozzle 2 and outside cone joint 3 adopt the argon arc welding mode to be welded on the conduit 1 respectively, and adopt 74 ° of conical surface seal connecting structure forms; It is the structure that contains draw-in groove 6 on the shell of column of outside cone joint 3; Self-locking cap nut 4 contains the structure of elasticity of extension sheet 5; Self-locking cap nut 4 and outside cone joint 3 compress flat ozzle 2 when tightening by screw thread, spring sheet 5 on the self-locking cap nut 4 is stuck in the draw-in groove 6 of outside cone joint 3, form self-locking structure, a kind of 74 ° of conical surface seals of whole formation do not have a lock silk self-locking pipe joint structure.

Claims (1)

1. a conical surface seal does not have lock silk self-locking pipe joint structure, it is characterized in that: described conical surface seal does not have lock silk self-locking pipe joint structure, comprises conduit (1), flat ozzle (2), outside cone joint (3), self-locking cap nut (4), spring sheet (5), draw-in groove (6);
Wherein: flat ozzle (2) and outside cone joint (3) adopt the argon arc welding mode to be welded on the conduit (1) respectively, and adopt 74 ° of conical surface seal connecting structure forms; Be the structure that contains draw-in groove (6) on the shell of column of outside cone joint (3); Self-locking cap nut (4) contains the structure of elasticity of extension sheet (5); Self-locking cap nut (4) and outside cone joint (3) compress flat ozzle (2) when tightening by screw thread, spring sheet (5) on the self-locking cap nut (4) is stuck in the draw-in groove (6) of outside cone joint (3), form self-locking structure, a kind of 74 ° of conical surface seals of whole formation do not have a lock silk self-locking pipe joint structure.
CN 201320001339 2013-01-05 2013-01-05 Conical surface seal lock-wire-free self-locking pipe joint structure Expired - Fee Related CN203052023U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320001339 CN203052023U (en) 2013-01-05 2013-01-05 Conical surface seal lock-wire-free self-locking pipe joint structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320001339 CN203052023U (en) 2013-01-05 2013-01-05 Conical surface seal lock-wire-free self-locking pipe joint structure

Publications (1)

Publication Number Publication Date
CN203052023U true CN203052023U (en) 2013-07-10

Family

ID=48734976

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320001339 Expired - Fee Related CN203052023U (en) 2013-01-05 2013-01-05 Conical surface seal lock-wire-free self-locking pipe joint structure

Country Status (1)

Country Link
CN (1) CN203052023U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104089131A (en) * 2014-06-24 2014-10-08 卢世清 Sealing structure for engine pipeline

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104089131A (en) * 2014-06-24 2014-10-08 卢世清 Sealing structure for engine pipeline

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Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130710

Termination date: 20160105