CN217714042U

CN217714042U - Flaring pipeline connecting piece of spherical sealing surface

Info

Publication number: CN217714042U
Application number: CN202221854862.7U
Authority: CN
Inventors: 孟丽莉; 陈琳; 尹昱力; 任广言
Original assignee: Xiyue Aviation Technology Shanghai Co ltd
Current assignee: Xiyue Aviation Technology Shanghai Co ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2022-11-01
Anticipated expiration: 2032-07-19

Abstract

The utility model relates to an aeroengine tube coupling technical field specifically is a flaring tube coupling of spherical sealed face, including the coupling that has the bulb end, the pipe that has the flaring end of hemisphere shelly, the overcoat nut on the pipe is located to movable tube sleeve and cover on the coupling of swing joint, overcoat nut and movable tube sleeve threaded connection, overcoat nut and flaring end outer wall offset one side outstanding rotatable gyro wheel that is equipped with, the gyro wheel is a plurality of, and a plurality of gyro wheel distributes along the inboard circumference equidistance of overcoat nut. The utility model discloses a set up the round gyro wheel in the overcoat nut inboard, when connecting pipe joint and pipe through screwing up overcoat nut, the overcoat nut produces rolling friction after the outer wall that passes through gyro wheel and pipe offsets, compares sliding friction between overcoat nut and the pipe in the traditional art, and the effectual frictional resistance that has reduced wearing and tearing for coupling and pipe are all difficult to be worn and torn, and then have guaranteed the compactness of connecting between it.

Description

Flaring pipeline connecting piece of spherical sealing surface

Technical Field

The utility model relates to an aeroengine tube coupling technical field specifically is a flaring tube coupling spare of spherical sealed face.

Background

In an abnormally complex working environment of the aero-engine, the pipeline connecting piece with good sealing performance can ensure that the medium is reliably conducted under various climatic conditions and flight states, so that the pressure and the flow of the medium are kept within the range of requirements for ensuring the normal work of the aero-engine.

At present, aeroengine pipe connection spare generally includes that the tip is the coupling of globular structure, the tip has pipe and the overcoat nut of threaded connection on the coupling of hemisphere shelly flaring structure, the coupling passes through between overcoat nut and the pipe tip be the flaring structure of hemisphere shelly zonulae occludens, thereby there is the spherical sealed face between messenger's coupling and the pipe, and then make this structure pipe connection spare have certain angular compensation ability, even use this pipe connection spare under the environment of vibration, also can guarantee the inseparable laminating between pipe and the coupling. However, when the flared pipeline connector is assembled, the outer nut, the flare of the conduit and the pipe joint can slide relatively during the screwing process of the outer nut, and the sliding can cause the conduit and the pipe joint to be worn too fast, thereby affecting the sealing performance between the conduit and the pipe joint.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a flaring tube coupling spare of spherical sealed face can reduce the wearing and tearing that pipe joint and pipe caused in the overcoat nut connection process, improves flaring tube coupling spare's sealing performance, has solved the problem of the pipe in the flaring tube coupling spare and the easy wearing and tearing of pipe joint.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a flaring pipeline connecting piece of spherical sealed face, is including the coupling that has the bulb end, the pipe, swing joint that have the flaring end of hemisphere shell form be in movable tube sleeve and cover on the coupling are located overcoat nut on the pipe, overcoat nut with movable tube sleeve threaded connection, overcoat nut with flaring end outer wall offsets one side and is outstanding to be equipped with rotatable gyro wheel, the gyro wheel is a plurality of, a plurality of the gyro wheel is followed overcoat nut's inboard circumference equidistance distributes.

Optionally, the wheel surface of the roller is of an arc-surface structure, and the wheel surface of the roller is completely attached to the outer spherical surface of the flared end.

Optionally, the roller includes a roller body and wheel shafts disposed at two ends of the roller body, and a roller body mounting notch for accommodating the roller body and a wheel shaft mounting notch for accommodating the wheel shaft are formed in an inner wall of the outer sleeve nut.

Optionally, the width of one end of the axle mounting notch, which is close to the inner wall of the outer sleeve nut, is smaller than the diameter of the axle, and the other end of the axle mounting notch is equal to the diameter of the axle.

Optionally, a position, corresponding to the middle of the wheel body, of the outer sleeve nut is provided with a dismounting hole communicated with the mounting notch of the wheel body, and the dismounting hole extends to the outer wall of the outer sleeve nut.

Optionally, a rubber pad is arranged on a connecting surface of the flared end and the ball end, and the rubber pad is bonded to the inner side of the flared end or the outer side of the ball end.

Optionally, two connecting shafts are arranged on the inner side of the movable pipe sleeve, an annular movable groove is formed in the outer wall of the ball head end along the circumferential direction of the outer wall, the center of the movable groove is overlapped with the spherical center of the ball head end, and the connecting shafts are arranged in the movable groove in a sliding manner.

Compared with the prior art, the utility model provides a flaring tube coupling spare of globular sealed face possesses following beneficial effect:

1. the utility model discloses a set up the round gyro wheel in the outer cap nut inboard, when connecting pipe joint and pipe through screwing up outer cap nut, outer cap nut produces rolling friction through the gyro wheel after the outer wall counterbalance with the pipe, compare sliding friction between outer cap nut and the pipe in the traditional art, the effectual frictional resistance that reduces has reduced wearing and tearing, simultaneously, reduced or avoided the relative motion between pipe flared end and the pipe joint bulb end, make pipe joint and pipe difficult by the wearing and tearing, and then guaranteed the compactness of connecting between them;

2. the utility model has the advantages that the disassembly holes are arranged on the outer sleeve nut, and the rod-shaped component is inserted into the disassembly holes, so that the roller in the roller body installation groove can be ejected out, and the roller is convenient to disassemble and replace;

3. the utility model discloses a ball head end at the coupling rotates the movable pipe box that sets up and overcoat nut threaded connection, and when the center pin between coupling and the pipe was not on same straight line, the accessible changed movable pipe box angle, made it can pinpoint and zonulae occludens with overcoat nut, reduced the installation technique degree of difficulty of the flaring pipeline connecting piece of globular sealed face.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the outer nut of the present invention;

FIG. 3 is a sectional structure diagram of the outer nut of the present invention;

fig. 4 is an enlarged schematic structural diagram of the point a of fig. 3 of the present invention.

In the figure: 1. a pipe joint; 10. a ball end; 100. a movable groove; 2. a conduit; 20. a flared end; 3. a nut is sleeved; 30. a notch is arranged on the wheel body; 31. a notch is arranged on the wheel shaft; 32. disassembling the hole; 4. a movable pipe sleeve; 5. a connecting shaft; 6. a rubber pad; 7. a roller; 70. a wheel body; 71. and (4) a wheel axle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment is as follows: referring to fig. 1 to 4, an embodiment of the present invention provides a technical solution: the utility model provides a flaring pipeline connecting piece of globular sealing surface, including the coupling 1 that has bulb end 10, the pipe 2 that has the flaring end 20 of hemisphere shell form, swing joint is movable pipe box 4 on coupling 1 and the overcoat nut 3 on pipe 2 is located to the cover, overcoat nut 3 and the 4 threaded connection of movable pipe box, overcoat nut 3 and the 20 outer wall of flaring end offset one side salient and be equipped with rotatable gyro wheel 7, gyro wheel 7 is a plurality of, a plurality of gyro wheel 7 distributes along the inboard circumference equidistance of overcoat nut 3, when screwing up overcoat nut 3, produce rolling friction after overcoat nut 3 offsets through gyro wheel 7 and pipe 2's outer wall, compare sliding friction between overcoat nut 3 and pipe 2 among the traditional art, frictional resistance has been reduced, wearing and tearing are reduced, and tearing are simultaneously, can reduce or avoid the relative motion between pipe 2 flaring end 20 and the 1 bulb end 10 of coupling, make coupling 1 and pipe 2 be difficult for wearing and tearing, and then the compactness of connection between them has been guaranteed.

On the basis of the above embodiment, the tread of the roller 7 in this embodiment is of an arc surface structure, and the tread of the roller 7 is completely attached to the outer spherical surface of the flared end 20, so that the pressing contact surface between the roller 7 and the flared end 20 can be increased, and under the condition that the pressure of the outer sleeve nut 3 on the flared end 20 is not changed, the stress of the flared end 20 in unit area is effectively reduced, which is beneficial to prolonging the service life of the flared end 20.

On the basis of the above embodiments, in the present embodiment, the roller 7 includes a roller body 70 and axle shafts 71 disposed at two ends of the roller body 70, the inner wall of the sleeve nut 3 is provided with a roller body mounting notch 30 for accommodating the roller body 70 and an axle shaft mounting notch 31 for accommodating the axle shaft 71, and the roller 7 is mounted on the inner wall of the sleeve nut 3 by means of insert mounting.

On the basis of the above embodiment, the width of the axle mounting notch 31 near the inner wall of the outer sleeve nut 3 in this embodiment is smaller than the diameter of the axle 71, and the other end is equal to the diameter of the axle 71, so that the roller 7 can be removed and replaced at a later stage.

On the basis of the above embodiments, in this embodiment, the outer nut 3 is provided with a detachment hole 32 corresponding to the middle portion of the wheel body 70 and communicating with the wheel body mounting notch 30, the detachment hole 32 extends to the outer wall of the outer nut 3, and the rod-shaped member is inserted into the detachment hole 32, so that the roller 7 in the mounting groove of the wheel body 70 can be ejected out, and the roller 7 can be conveniently detached and replaced.

On the basis of the above embodiment, the rubber pad 6 is disposed on the connection surface between the flared end 20 and the ball end 10 in this embodiment, the rubber pad 6 is bonded on the inner side of the flared end 20 or the outer side of the ball end 10, and the rubber pad 6 increases the sealing performance of the sealing surface between the pipe joint 1 and the conduit 2, thereby avoiding the fluid leakage.

On the basis of the above embodiment, in this embodiment, two connecting shafts 5 are disposed on the inner side of the movable pipe sleeve 4, an annular movable groove 100 is disposed on the outer wall of the ball end 10 along the circumferential direction, the center of the movable groove 100 coincides with the center of the ball end 10, the connecting shafts 5 are slidably disposed in the movable groove 100, and when the central axes between the pipe joint 1 and the guide pipe 2 are not on the same straight line, the movable pipe sleeve 4 can rotate along the ball end 10 via the connecting shafts 5, so that the movable pipe sleeve 4 can be accurately positioned and tightly connected with the outer nut 3, and the difficulty in mounting the flared pipeline connecting piece of the spherical sealing surface is reduced.

The working principle is as follows: when the conduit 2 is required to be connected with the pipe joint 1, firstly, the inner side of the flaring end 20 of the conduit 2 is abutted against the outer wall of the ball head end 10 of the pipe joint 1, then, the angle of the movable pipe sleeve 4 is adjusted to enable the movable pipe sleeve to be coaxial with the outer sleeve nut 3, finally, the outer sleeve nut 3 is screwed on the movable pipe sleeve 4 to tightly press the flaring end 20 of the conduit 2 and the ball head end 10 of the pipe joint 1 together, when the outer sleeve nut 3 is screwed, rolling friction is generated after the inner side of the outer sleeve nut 3 is abutted against the outer wall of the conduit 2 through the rollers 7, compared with sliding friction generated between the outer sleeve nut 3 and the conduit 2 in the prior art, the friction resistance is effectively reduced, so that the abrasion of the conduit 2 is reduced, meanwhile, the relative movement between the flaring end 20 of the conduit 2 and the ball head end 10 of the pipe joint 1 is also reduced or avoided, so that the pipe joint 1 and the conduit 2 are not easily abraded, and the tightness and reusability of connection between the conduit 2 are further ensured.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a flaring tube coupling spare of spherical sealed face which characterized in that: including pipe joint (1) that has bulb end (10), pipe (2), swing joint that have flaring end (20) of hemisphere shell form be in activity pipe box (4) and cover on pipe joint (1) are located overcoat nut (3) on pipe (2), overcoat nut (3) with activity pipe box (4) threaded connection, overcoat nut (3) with flaring end (20) outer wall counterbalance one side is outstanding to be equipped with rotatable gyro wheel (7), gyro wheel (7) are a plurality of, a plurality of gyro wheel (7) are followed inboard circumference equidistance distribution of overcoat nut (3).

2. The flared tube coupling of claim 1, wherein: the wheel surface of the roller (7) is of a cambered surface structure, and the wheel surface of the roller (7) is completely attached to the outer spherical surface of the flared end (20).

3. The flared tube coupling of claim 1, wherein: the roller (7) comprises a roller body (70) and wheel shafts (71) arranged at two ends of the roller body (70), and a roller body mounting notch (30) for accommodating the roller body (70) and a wheel shaft mounting notch (31) for accommodating the wheel shaft (71) are formed in the inner wall of the outer sleeve nut (3).

4. The flared tube coupling of claim 3, wherein: the width of one end, close to the inner wall of the outer sleeve nut (3), of the axle mounting notch (31) is smaller than the diameter of the axle (71), and the other end of the axle mounting notch is equal to the diameter of the axle (71).

5. The flared tube coupling of claim 4, wherein: the outer sleeve nut (3) is provided with a dismounting hole (32) corresponding to the middle of the wheel body (70) and communicated with the wheel body mounting notch (30), and the dismounting hole (32) extends to the outer wall of the outer sleeve nut (3).

6. The flared tube coupling of claim 1, wherein: and a rubber pad (6) is arranged on the connecting surface of the flared end (20) and the ball head end (10), and the rubber pad (6) is bonded on the inner side of the flared end (20) or the outer side of the ball head end (10).

7. The flared tube coupling of claim 1, wherein: the inner side of the movable pipe sleeve (4) is provided with two connecting shafts (5), the outer wall of the ball end (10) is provided with an annular movable groove (100) along the circumferential direction, the center of the movable groove (100) is overlapped with the ball center of the ball end (10), and the connecting shafts (5) are arranged in the movable groove (100) in a sliding mode.