CN115405769B - Pipeline joint structure with assembly angle compensation - Google Patents
Pipeline joint structure with assembly angle compensation Download PDFInfo
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- CN115405769B CN115405769B CN202211352902.2A CN202211352902A CN115405769B CN 115405769 B CN115405769 B CN 115405769B CN 202211352902 A CN202211352902 A CN 202211352902A CN 115405769 B CN115405769 B CN 115405769B
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- annular boss
- pipeline
- deformation
- annular
- adapter
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/08—Screw-threaded joints; Forms of screw-threads for such joints with supplementary elements
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Abstract
The application belongs to the field of assembly of aircraft engine pipelines, and relates to a pipeline joint structure with assembly angle compensation, which comprises an outer sleeve nut, an adapter, a ball head pipeline and a mounting seat; during installation, the adapter is screwed in the installation seat through threads, and the adapter is slightly clamped by an annular tool clamp until the diameter of the inner surface of the annular boss is smaller than that of the inner surface of the annular opening; then the outer sleeve nut is screwed until the outer sleeve nut is assembled according to the specified tightening torque, the annular boss of the outer sleeve nut is clamped secondarily, the annular boss is clamped into the annular groove until the annular boss is attached, and then the outer sleeve nut and the adapter are connected through the lock wire, so that the working state is prevented from loosening. The assembly stress generated by the coaxial effect of the non-coaxial pipeline and the mounting seat on the thread position is avoided, and the pipeline does not need to be corrected again. The pipeline correcting workload can be effectively reduced, the pipeline assembling stress is reduced, the reliability of the pipeline is improved, and the labor cost is reduced.
Description
Technical Field
The application belongs to the field of aircraft engine pipeline assembly, and particularly relates to a pipeline joint structure with assembly angle compensation.
Background
Long pipeline of aeroengine is when the assembly, the corresponding part locating surface at pipeline both ends usually can appear the phenomenon of disalignment because tolerance dimension chain's accumulation and manufacturing tolerance control scheduling problem, cause the pipe connection to have angular deviation, and current pipe connection mainly adopts spherical joint and conical surface to connect the mouth cooperation, the form of nut screwing up connection, see figure 1, do not possess the compensation ability to angular deviation, cause the pipeline to have initial assembly stress, the screw thread is worn and torn easily, especially the pipeline of some sealing oil and high-pressure gas effect, its operational reliability and sealed effect will directly receive the influence. In order to solve the problem of assembly stress and improve the reliability of pipelines, the currently adopted method mainly comprises the following steps: 1) During assembly, the deviation is reduced by adopting a pipeline correction mode, and the coaxial connection is ensured as much as possible. 2) The hose structure is adopted, and the angular deviation is compensated through the deformation of the hose.
Because the spherical joint and the conical joint have no compensation capability for angle deviation in a matching mode, coaxial assembly can be realized only by a pipeline correction mode as much as possible, but the deviation cannot be completely eliminated by adopting the correction mode, and initial assembly stress is inevitably left to influence the working reliability of the pipeline.
The hose structure is adopted, the angle deviation is compensated through the deformation of the hose, but the hose has large bending radius, complex structure and large occupied space, is only suitable for being connected with large-scale accessories, and cannot be used due to the limitation of space between pipelines.
Both approaches have drawbacks, and thus how to perform more efficient angle fitting is a problem to be solved.
Disclosure of Invention
The application aims at providing a pipeline joint structure with assembly angle compensation to solve the problems that the pipeline correction mode is adopted to reduce deviation working reliability and is low, and a hose is adopted to reduce deviation occupied space.
The technical scheme of the application is as follows: the utility model provides a pipe joint structure with assembly angle compensation, includes cap nut, adapter, bulb pipeline and mount pad, cap nut and bulb pipeline threaded connection, its characterized in that: the adapter is in threaded connection with the mounting seat, a conical surface is arranged at the end of the adapter, a spherical surface which is hinged with a conical surface ball is arranged on the ball head pipeline, a mounting table is arranged at one end, close to the ball head pipeline, of the adapter, an annular groove is formed at one end, far away from the ball head pipeline, of the mounting table, an annular boss is arranged at one end, close to the adapter, of the outer nut, at least two groups of deformation notches are circumferentially formed in the annular boss, each deformation notch is in a deformation state and a non-deformation state, the inner annular diameter of the annular boss is larger than or equal to the outer surface diameter of the mounting table when the deformation notches are in the non-deformation state, and the annular boss is sleeved on the mounting table during assembly; when the deformation notch is in a deformation state, the annular boss is inserted into the annular groove, and the annular boss is in clamping fit with the mounting table through the annular groove.
Preferably, the outer sleeve nut comprises a support table and a bending part arranged between the support table and the annular boss, a plurality of groups of deformation notches are uniformly formed along the circumferential direction of the bending part and the annular boss, and the bending part is cylindrical when in a non-deformation state; the bending part is bent and deformed inwards when in shape change, and the width of the deformation notch is narrowed simultaneously.
Preferably, the deformation notch comprises a crack stop hole and a strip hole, the crack stop hole is formed in the bending part, and the strip hole is formed in the annular boss.
Preferably, in the deformed state, the size relationship between the inner annular surface diameter a of the annular boss and the outer surface diameter B of the mounting table is as follows: B-A is more than or equal to 2mm.
Preferably, the width of the long hole (13) of the deformation notch (9) is L and L is more than or equal to (C-B) multiplied by 3.14/notch number, the diameter of the crack-stopping hole (12) of the deformation notch (9) is 2R and 2R is more than or equal to L, the length of the long hole (13) of the deformation notch (9) is H, H is more than or equal to N +4,C is the diameter of the outer surface of the annular boss (5), N is the width of the annular boss (5), and the unit of L, R, H, N +4 is mm.
Preferably, a lock wire is connected between the outer sleeve nut and the adapter.
The application provides a pipeline joint structure with assembly angle compensation, which comprises an outer sleeve nut, an adapter, a ball head pipeline and a mounting seat; during installation, the adapter and the mounting seat are screwed in through threads, the adapter and the outer nut are axially sleeved until the axial position of the annular boss of the outer nut is located at the annular opening of the adapter, the adapter is slightly clamped by an annular tool clamp until the diameter of the inner surface of the annular boss is smaller than that of the annular opening, the annular boss is clamped into the annular opening, and the outer nut is ensured to freely rotate; then the outer sleeve nut is screwed until the outer sleeve nut is assembled according to the specified tightening torque, the outer sleeve nut and the ball head pipeline are kept in a coaxial state, the annular boss of the outer sleeve nut is clamped for the second time, the annular boss is clamped into the annular groove until the annular groove is attached to the outer sleeve nut, and then the outer sleeve nut and the adapter are connected through the lock wire, so that the working state is prevented from loosening. The outer sleeve nut and the clamping part of adapter contact position for having interior opening can self-adaptation assembly deformation, and the angle that the kink formed has compensated the deviation that bulb pipeline and mount pad disalignment caused among the assembling process, and the problem that the adapter breaks away from can not appear after the secondary presss from both sides tightly yet, has avoided the screw thread position to receive pipeline and mount pad disalignment coaxial influence to produce assembly stress, need not to rectify the pipeline once more. The pipeline correcting workload can be effectively reduced, the pipeline assembling stress is reduced, the reliability of the pipeline is improved, and the labor cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions provided by the present application, the following briefly introduces the accompanying drawings. It is to be expressly understood that the drawings described below are only illustrative of some embodiments of the invention.
FIG. 1 is a schematic diagram of a background art structure;
FIG. 2 is a schematic view of the overall structure of a variant of the present application;
figure 3 is a schematic structural view of the present application before the axial preassembly of the outer nut and adapter;
FIG. 4 is a schematic view of the assembly structure of the outer nut and the adapter in a non-deformed state according to the present application;
fig. 5 is a schematic structural view of the outer nut in a non-deformed state according to the present application.
1. A nut is sleeved; 2. an adapter; 3. a bulb pipeline; 4. a mounting base; 5. an annular boss; 6. an annular groove; 7. a support table; 8. a bending section; 9. deformation gaps; 10. locking the wire; 11. an installation table; 12. a crack stop hole; 13. and (4) a long hole.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application.
The utility model provides a pipeline joint structure with assembly angle compensation, as shown in figure 2, including overcoat nut 1, adapter 2, bulb pipeline 3 and mount pad 4, adapter 2 and 4 threaded connection of mount pad, the tip of adapter 2 is equipped with the conical surface, be equipped with on the bulb pipeline 3 with conical surface ball articulated sphere, annular groove 6 has been seted up on adapter 2's the lateral wall, be equipped with annular boss 5 on adapter 2's the interior anchor ring, 1 one end of overcoat nut and 3 threaded connection of bulb pipeline after the assembly is accomplished, the annular boss 5 and the 6 joint cooperation of annular groove of the other end.
The connector 2 is provided with an installation platform 11 at one end close to the ball head pipeline 3, an annular groove 6 is formed in one end, far away from the ball head pipeline 3, of the installation platform 11, an annular boss 5 is arranged at one end, close to the connector 2, of the outer nut 1, at least two groups of deformation notches 9 are circumferentially formed in the annular boss 5, the annular boss 5 is divided into a plurality of arc-shaped sections through the deformation notches 9, each deformation notch 9 is in a deformation state and a non-deformation state, the inner annular diameter of the annular boss 5 is slightly larger than or equal to the outer surface diameter of the installation platform 11 when the deformation notches 9 are in the non-deformation state, and the annular boss 5 is sleeved on the installation platform 11 during assembly; when the deformation notch 9 is in a deformation state, the annular boss 5 is inserted into the annular groove 6, and at the moment, the annular boss 5 is in clamping fit with the mounting table 11 through the annular groove 6.
With reference to fig. 2 and 3, during installation, the adapter 2 and the mounting seat 4 are screwed in through threads, the adapter 2 and the outer nut 1 are axially sleeved until the axial position of the annular boss 5 of the outer nut 1 is located at the annular opening of the adapter 2, the adapter 2 is slightly clamped by an annular tool clamp until the inner surface diameter of the annular boss 5 is smaller than the inner surface diameter of the annular opening, the annular boss 5 is clamped on the annular opening, at the moment, the size relation between the inner annular surface diameter ase:Sub>A of the annular boss 5 and the inner surface diameter B of the annular groove 6 is controlled to be B-A larger than or equal to 2mm, the outer nut 1 cannot fall off and can freely move after installation is completed, and ase:Sub>A pipe joint assembly structure is formed.
Then, the outer sleeve nut 1 is screwed until the outer sleeve nut 1 is assembled according to the specified tightening torque, the outer sleeve nut 1 and the ball head pipeline 3 keep a coaxial state, the annular boss 5 of the outer sleeve nut 1 is clamped secondarily, the annular boss 5 is clamped into the annular groove 6 until the annular groove is attached to the outer sleeve nut 1, then the outer sleeve nut 1 and the adapter 2 are connected through the lock wire 10, and the working state is prevented from loosening. The contact position of the outer sleeve nut 1 and the adapter 2 is the clamping part which has an inner opening and can be self-adaptively assembled and deformed, the angle formed by the bending part 8 compensates the deviation caused by the disalignment of the ball head pipeline 3 and the mounting seat 4 in the assembling process, the problem that the adapter 2 is separated after the secondary clamping is avoided, the assembly stress generated by the coaxial influence of the pipeline and the mounting seat 4 disalignment is avoided, and the pipeline is not required to be corrected again. The pipeline correcting workload can be effectively reduced, the pipeline assembling stress is reduced, the reliability of the pipeline is improved, and the labor cost is reduced. Meanwhile, the formed assembly structure can be designed into a standard series part, and is applied to pipeline structures of various sizes, so that the design, processing and assembly periods are reduced.
The pipe joint assembly structure composed of the outer sleeve nut 1 and the adapter 2 can be designed into a standard part with series sizes, the preliminary assembly can be produced and completed in advance, the ball head pipeline 3 and the mounting seat 4 can be designed according to standards, the proper pipe joint assembly is selected according to the size during component assembly, and the clamping tool can also be of standard matching sizes.
With reference to fig. 4, preferably, the outer nut 1 includes a support platform 7 and a bending portion 8 disposed between the support platform 7 and the annular boss 5, a plurality of sets of the deformation notches 9 are uniformly formed along the circumferential direction of the bending portion 8 and the annular boss 5, and the bending portion 8 is cylindrical when in an undeformed state; the bending part 8 is bent and deformed inwards when deformed, and the width of the deformation notch 9 is narrowed. Through setting up the deformation opening 9 that runs through kink 8 and annular boss 5, kink 8 can effectively be out of shape on the one hand, and on the other hand annular boss 5 can effectively overturn into annular groove 6 under annular frock clamp's centre gripping.
Preferably, the deformation notch 9 comprises a crack-stopping hole 12 and a strip hole 13, the crack-stopping hole 12 is opened on the bending part 8, and the strip hole 13 is opened on the annular boss 5. The crack-stopping hole 12 can prevent the bending part 8 from cracking when deformed, and the strip hole 13 ensures that the annular boss 5 can be effectively turned over through the change of the width.
Preferably, the width of the strip hole (13) of the deformation notch (9) is L and L is more than or equal to (C-B). Times.3.14/number of notches, the diameter of the crack-stopping hole (12) of the deformation notch (9) is 2R and 2R is more than or equal to L, the length of the strip hole (13) of the deformation notch (9) is H, H is more than or equal to N +4,C is the diameter of the outer surface of the annular boss (5), N is the width of the annular boss (5), and the unit of L, R, H, N +4 is mm.
Preferably, the outer surface of the opening of the outer sleeve nut 1 is clamped twice by an inner circular tool until the C and the B are basically attached to the corresponding ring surface (a gap still exists between the ring surface corresponding to the A and the adapter 2 after the CB is attached to the ring surface) and the outer sleeve nut 1 and the adapter 2 are respectively locked by the lock wire 10, so that the connection stability is further improved, and the outer sleeve nut 1 is prevented from rotating.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a pipeline joint structure with assembly angle compensation, includes overcoat nut (1), adapter (2), bulb pipeline (3) and mount pad (4), overcoat nut (1) and bulb pipeline (3) threaded connection, its characterized in that: the connector (2) is in threaded connection with the mounting seat (4), the end of the connector (2) is provided with a conical surface, a spherical surface which is hinged to the conical surface is arranged on the ball head pipeline (3), a mounting table (11) is arranged at one end, close to the ball head pipeline (3), of the connector (2), an annular groove (6) is formed in one end, far away from the ball head pipeline (3), of the mounting table (11), an annular boss (5) is arranged at one end, close to the connector (2), of the outer nut (1), at least two groups of deformation notches (9) are circumferentially formed in the annular boss (5), each deformation notch (9) is in a deformation state and a non-deformation state, the inner annular diameter of each annular boss (5) is larger than or equal to the outer surface diameter of the mounting table (11) when each deformation notch (9) is in the non-deformation state, and the annular boss (5) is sleeved on the mounting table (11) during assembly; when the deformation notch (9) is in a deformation state, the annular boss (5) is inserted into the annular groove (6), and at the moment, the annular boss (5) is in clamping fit with the mounting table (11) through the annular groove (6).
2. The piping joint structure with assembly angle compensation of claim 1, wherein: the outer sleeve nut (1) comprises a supporting platform (7) and a bending part (8) arranged between the supporting platform (7) and the annular boss (5), a plurality of groups of deformation notches (9) are uniformly formed along the circumferential direction of the bending part (8) and the annular boss (5), and the bending part (8) is cylindrical in a non-deformation state; the bending part (8) is bent and deformed inwards in a deformed state, and the width of the deformation notch (9) is narrowed.
3. The piping joint structure with assembly angle compensation of claim 2, wherein: deformation opening (9) include stop crack hole (12) and rectangular hole (13), stop crack hole (12) are seted up on kink (8), rectangular hole (13) are seted up on annular boss (5).
4. The piping joint structure with assembly angle compensation of claim 1, wherein: when the mounting platform is in a deformed state, the size relation between the diameter A of the inner annular surface of the annular boss (5) and the diameter B of the outer surface of the mounting platform (11) is as follows: B-A is more than or equal to 2mm.
5. The piping joint structure with assembly angle compensation of claim 3, wherein: the width of the strip hole (13) of the deformation notch (9) is L, L is more than or equal to (C-B). Times.3.14/number of notches, the diameter of the crack-stopping hole (12) of the deformation notch (9) is 2R, 2R is more than or equal to L, the length of the strip hole (13) of the deformation notch (9) is H, H is more than or equal to N +4,C, the diameter of the outer surface of the annular boss (5) is N, the width of the annular boss (5) is N, and the unit of L, R, H, N +4 is mm.
6. The piping joint structure with assembly angle compensation of claim 1, wherein: and a lock wire (10) is connected between the outer sleeve nut (1) and the adapter (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211352902.2A CN115405769B (en) | 2022-11-01 | 2022-11-01 | Pipeline joint structure with assembly angle compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211352902.2A CN115405769B (en) | 2022-11-01 | 2022-11-01 | Pipeline joint structure with assembly angle compensation |
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| Publication Number | Publication Date |
|---|---|
| CN115405769A CN115405769A (en) | 2022-11-29 |
| CN115405769B true CN115405769B (en) | 2023-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211352902.2A Active CN115405769B (en) | 2022-11-01 | 2022-11-01 | Pipeline joint structure with assembly angle compensation |
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| CN (1) | CN115405769B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB657949A (en) * | 1949-06-13 | 1951-09-26 | George Victor Woodling | Flareless tube coupling |
| JP2003120877A (en) * | 2001-10-12 | 2003-04-23 | Toyox Co Ltd | Hose connecting structure |
| JP4283335B1 (en) * | 2008-10-31 | 2009-06-24 | 兼工業株式会社 | Pipe fitting |
| CN202176850U (en) * | 2011-07-28 | 2012-03-28 | 宁波亚德客自动化工业有限公司 | Pipe joint |
| CN204879237U (en) * | 2015-08-27 | 2015-12-16 | 杭州恒通金属软管有限公司 | Nonrust corrugated steel pipe's connecting piece |
| CN205859432U (en) * | 2016-06-23 | 2017-01-04 | 潘汝 | The flexible attachment structure of liquid conveying pipe |
| CN210484878U (en) * | 2019-09-30 | 2020-05-08 | 浙江天庆管业有限公司 | Conical surface double-ring pipe clamping piece |
| CN210484965U (en) * | 2019-10-08 | 2020-05-08 | 沈阳杰迈能源设备有限公司 | Direct-buried compound sealing sleeve compensator |
| CN214368479U (en) * | 2020-12-22 | 2021-10-08 | 河北岳丰管件产业技术研究有限公司 | Large elbow with anti-fracture structure |
| CN113932078A (en) * | 2021-10-26 | 2022-01-14 | 中国航发沈阳发动机研究所 | Pipeline connecting device with multidirectional displacement compensation capability |
-
2022
- 2022-11-01 CN CN202211352902.2A patent/CN115405769B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB657949A (en) * | 1949-06-13 | 1951-09-26 | George Victor Woodling | Flareless tube coupling |
| JP2003120877A (en) * | 2001-10-12 | 2003-04-23 | Toyox Co Ltd | Hose connecting structure |
| JP4283335B1 (en) * | 2008-10-31 | 2009-06-24 | 兼工業株式会社 | Pipe fitting |
| CN202176850U (en) * | 2011-07-28 | 2012-03-28 | 宁波亚德客自动化工业有限公司 | Pipe joint |
| CN204879237U (en) * | 2015-08-27 | 2015-12-16 | 杭州恒通金属软管有限公司 | Nonrust corrugated steel pipe's connecting piece |
| CN205859432U (en) * | 2016-06-23 | 2017-01-04 | 潘汝 | The flexible attachment structure of liquid conveying pipe |
| CN210484878U (en) * | 2019-09-30 | 2020-05-08 | 浙江天庆管业有限公司 | Conical surface double-ring pipe clamping piece |
| CN210484965U (en) * | 2019-10-08 | 2020-05-08 | 沈阳杰迈能源设备有限公司 | Direct-buried compound sealing sleeve compensator |
| CN214368479U (en) * | 2020-12-22 | 2021-10-08 | 河北岳丰管件产业技术研究有限公司 | Large elbow with anti-fracture structure |
| CN113932078A (en) * | 2021-10-26 | 2022-01-14 | 中国航发沈阳发动机研究所 | Pipeline connecting device with multidirectional displacement compensation capability |
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| CN115405769A (en) | 2022-11-29 |
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