CN109237190A - A kind of external engine piping connection structure with vibration-damping function - Google Patents
A kind of external engine piping connection structure with vibration-damping function Download PDFInfo
- Publication number
- CN109237190A CN109237190A CN201810981677.6A CN201810981677A CN109237190A CN 109237190 A CN109237190 A CN 109237190A CN 201810981677 A CN201810981677 A CN 201810981677A CN 109237190 A CN109237190 A CN 109237190A
- Authority
- CN
- China
- Prior art keywords
- tube body
- shell
- vibration
- connection structure
- piping connection
- 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.)
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Classifications
-
- 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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/041—Devices damping pulsations or vibrations in fluids specially adapted for preventing vibrations
-
- 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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/045—Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Joints Allowing Movement (AREA)
Abstract
The application belongs to external engine piping field of structural design, in particular to a kind of external engine piping connection structure with vibration-damping function, it include: pipeline connecting device, two first shells in tubular construction are cylindrical in shape the second shell of structure with two, first shell and second shell constitute the two-stage vibration damping of the application structure, it can effectively solve the problems, such as that engine pipelines vibration bursts are big, especially under the specific environment such as Engine pedestal trial run or winged hair matching, because of space structure, the limited pipeline vibration problem that can not be added pipeline damping structure or increase the burst when pipeline support of case structure.
Description
Technical field
The application belongs to external engine piping field of structural design, in particular to outside a kind of engine with vibration-damping function
Portion's pipeline jointing construction.
Background technique
The exterior line of the engines such as aero-engine, gas turbine because of device cave phenomenon, fluid pressure pulse, rub or let out
Pipeline vibration problem caused by dew etc. will cause piping connection loosening, closed failure, oil leak and reduce asking for pipeline service life
Topic.In general, the method for reducing pipeline vibration is to add pipeline damping structure or nominal price pipeline support raising support stiffness.
In the design process of exterior line, vibration calculating is more complex, much vibrates excessive situation and is difficult in design
It was found that vibrating excessive problem in Engine pedestal trial run or under flying the specific environment such as hair matching and being just exposed, by space
The limitation of structure, case structure, adds pipeline damping structure again at this time or part increase pipeline support can be relatively difficult, sometimes very
To that must change casing surface texture or install side structure, cost is high.And the method for increasing pipeline support can be to the pipeline on periphery
Coupling is generated, vibration source is spread.
Thus, it is desirable to have a kind of technical solution overcomes or at least mitigates at least one drawbacks described above of the prior art.
Summary of the invention
The purpose of the application there is provided a kind of external engine piping connection structure with vibration-damping function, to solve to start
The big problem of machine pipeline vibration bursts, especially Engine pedestal trial run fly under the specific environment such as hair matching, because space is tied
The pipeline vibration that structure, case structure are limited the burst when can not adding pipeline damping structure or increasing pipeline support is asked
Topic.
The technical solution of the application is:
The application's is a kind of external engine piping connection structure with vibration-damping function, comprising:
Pipeline connecting device, including the first tube body, the second tube body and third tube body being sequentially coaxially connected to, described first
The diameter of tube body is identical as the diameter of the third tube body, and the diameter of second tube body is greater than the diameter of first tube body,
It is offered in the middle part of second tube body radial with the symmetrical first through hole in second tube body axle center and the second through-hole；
There are an annular end cap in two first shells in tubular construction, described first shell axial direction one end, and two described first
Shell is coaxially set in respectively on first tube body and the third tube body, and is connected to axial the two of second tube body
End, the first shell form ring cavity between first tube body and the third tube body respectively, described cyclic annular empty
It is intracavitary to be coaxially arranged with ripple spring, axial one end of ripple spring axial ends phase with second tube body respectively
Touching, the axial other end are touched with the inner wall of the annular end cap of the corresponding first shell；
Two are cylindrical in shape the second shell of structure, axial closed at one end, and two second shells are respectively with described first
Through-hole or the second through-hole coaxial communication are equipped with groups of springs, described groups of springs one end and described second in the second shell
The closing end in contact of shell, the other end are connected with piston.
Optionally, the pipeline connecting device is a single piece.
Optionally, the first shell is connected by screw bolts between the axial ends of second tube body respectively.
Optionally, the bolt quantity includes at least two.
Optionally, limit pressing plate, two limit pressing plates are installed between the ripple spring and the first shell
It is coaxially set on first tube body and the third tube body respectively.
Optionally, the annular end cap of the first shell axially offers third through-hole, and the third through-hole offers interior
Screw thread, and it is fitted with limit jackscrew.
Optionally, the third through-hole quantity opened up in the single first shell is four, corresponding setting
There are four the limit jackscrews.
Optionally, the limit jackscrew is threadedly attached in the third through-hole and holds out against the limit pressing plate.
It optionally, is clearance fit between the piston and the second shell.
Optionally, coaxial sleeve is equipped with a piston ring on the piston outer wall, and the piston ring limits the piston and is detached from
The second shell out.
At least there are following advantageous effects in the application:
A kind of external engine piping connection structure with vibration-damping function of the application, can be in lift line Anti-vibration Design
While ability, it can effectively solve the problems, such as that engine pipelines vibration bursts are big, especially Engine pedestal trial run or winged hair
Under the specific environment such as matching, pipeline damping structure or increase pipeline support can not be added because space structure, case structure are limited
When burst pipeline vibration problem.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the application；
Fig. 2 is the explosive view of the application；
Fig. 3 is the mounting assembly structural schematic diagram of the first shell of the application；
Fig. 4 is the mounting assembly structural schematic diagram of the second shell of the application；
Wherein:
1- pipeline connecting device, 2- first shell, 3- second shell, 4- ripple spring, 5- groups of springs, 6- piston, 7- are living
Plug ring, 8- limit pressing plate, and 9- limits jackscrew, 10- bolt.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application implementation clearer, below in conjunction in the embodiment of the present application
Attached drawing, technical solutions in the embodiments of the present application is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label indicate same or similar element or element with the same or similar functions.Described embodiment is the application
A part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use
In explanation the application, and it should not be understood as the limitation to the application.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without creative efforts, shall fall in the protection scope of this application.Under
Face is described in detail embodiments herein in conjunction with attached drawing.
In the description of the present application, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown is merely for convenience of description the application and simplifies description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as protecting the application
The limitation of range.
1 the application is described in further details to attached drawing 4 with reference to the accompanying drawing.
Fig. 1 and Fig. 2, the application's is the external engine piping connection structure with vibration-damping function, comprising:
Pipeline connecting device 1, including the first tube body, the second tube body and third tube body being sequentially coaxially connected to, the first pipe
The diameter of body is identical as the diameter of third tube body, and the diameter of the second tube body is greater than the diameter of the first tube body, the middle part of the second tube body
It offers radial with the second symmetrical first through hole in tube body axle center and the second through-hole；
There are annular end cap in two first shells 2 in tubular construction, the axial one end of first shell 2, and two first shells 2 are divided
It is not set in coaxially on the first tube body and third tube body, and is connected to the axial ends of the second tube body, first shell 2 is respectively with the
Ring cavity is formed between one tube body and third tube body, ripple spring 4 is coaxially arranged in ring cavity, ripple spring 4
Axial ends of the axial one end respectively with the second tube body touches, the annular end cap of the axial other end and corresponding first shell 2
Inner wall touch；As shown in Figure 1, in the present embodiment, two first shells 2 are bolted at the both ends of the second tube body；
By taking the first shell 2 in left side in Fig. 1 as an example, ripple spring 4, a left side for ripple spring 4 are installed in first shell 2
It is equipped with limit pressing plate 8 between the inside of the annular end cap of side and first shell 2, is opened up in annular end cap axial direction there are four third
Through-hole offers internal screw thread on third through-hole, and is equipped with the limit jackscrew 9 of threaded connection, in the present embodiment, left side
The bolt quantity at least two being connect on the left of first shell 2 and the second tube body, and bolt is uniformly arranged, guarantees the steady of connection
Qualitative, ripple spring 4 at least guarantees two sides and limits the left contact of pressing plate 8 or the second tube body, it is to be understood that spacing top
Limit pressing plate 8 at least there are three arrangements, after guaranteeing that limit jackscrew 9 is screwed into the right, is kept stable plane, makes ripple bullet by silk 9
Spring 4 is in the state compressed, sees Fig. 3, and in the present embodiment, limit jackscrew is disposed with four, and limit jackscrew 9 can be according to vibration
Size is adjusted, and when fluid passes through pipeline connecting device 1, by tightening limit jackscrew 9, ripple spring 4 is made to squeeze second
The left side of tube body can have the function that reduce vibration, adjust limit jackscrew 9 according to the flow velocity of fluid and Vibration Condition, realize
Control to extent of vibration.
The structure installation of the first shell 2 on right side and its efficiency and the first shell in left side 2 are consistent in Fig. 1.
Such as Fig. 1 or Fig. 4, two are cylindrical in shape the second shell 3 of structure, axial closed at one end, two second shells 3 respectively with
First through hole or the second through-hole coaxial communication are equipped with groups of springs 5,5 one end of groups of springs and second shell 3 in second shell 3
Closing end in contact, the other end is connected with piston 6.
It in the present embodiment, is that gap is matched between piston 6 and second shell 3 by taking the second shell 3 of top in Fig. 1 as an example
It closes, coaxial sleeve is equipped with a piston ring 7 on 6 outer wall of piston, and piston ring 7 limits piston 6 and detaches second shell 3；When fluid passes through
When crossing pipeline connecting device 1, fluid can generate pulse or impact, and in the present embodiment, fluid can be to entering first through hole or the
Two through-holes push piston 6 to move out, pressuring spring group 5, and groups of springs 5, which is pressurized, stores energy, after fluid tends towards stability, make
Power on piston 6 reduces, and groups of springs 5 can release energy elongation, makes fluid that first through hole or the second through-hole, groups of springs be discharged
5 compression, elongation and the reciprocating motion of piston 6 can play the role of buffering and absorb fluid impact and pulse, also have
To the ability of 1 vibration damping of pipeline connecting device.
Preferably, pipeline connecting device 1 is a single piece, keeps the performance of structure more stable.
In the present embodiment, the spring arrangement of the first shell 2 of the application and second shell 3 and its inside, so that this Shen
Structure please has the function of two-stage vibration damping, can effectively solve the problems, such as that engine pipelines vibration bursts are big, especially start
Machine frame test run flies under the specific environment such as hair matching, because space structure, the limited pipeline that can not add of case structure damp knot
Structure or the pipeline vibration problem for increasing the burst when pipeline support.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any
Within the technical scope of the present application, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
Cover within the scope of protection of this application.Therefore, the protection scope of the application should be with the scope of protection of the claims
It is quasi-.
Claims (10)
1. a kind of external engine piping connection structure with vibration-damping function characterized by comprising
Pipeline connecting device (1), including the first tube body, the second tube body and third tube body being sequentially coaxially connected to, described first
The diameter of tube body is identical as the diameter of the third tube body, and the diameter of second tube body is greater than the diameter of first tube body,
It is offered in the middle part of second tube body radial with the symmetrical first through hole in second tube body axle center and the second through-hole；
There are an annular end cap in two first shells (2) in tubular construction, the axial one end of the first shell (2), and two described the
One shell (2) is coaxially set in respectively on first tube body and the third tube body, and is connected to the axis of second tube body
To both ends, the first shell (2) forms ring cavity between first tube body and the third tube body respectively, described
Be coaxially arranged in ring cavity ripple spring (4), axial one end of the ripple spring (4) respectively with second tube body
Axial ends touches, and the axial other end is touched with the inner wall of the annular end cap of the corresponding first shell (2)；
Two are cylindrical in shape the second shell (3) of structure, axial closed at one end, and two second shells (3) are respectively with described the
One through-hole or the second through-hole coaxial communication are equipped with groups of springs (5), described groups of springs (5) one end in the second shell (3)
With the closing end in contact of the second shell (3), the other end is connected with piston (6).
2. the external engine piping connection structure according to claim 1 with vibration-damping function, which is characterized in that the pipe
Road attachment device (1) is a single piece.
3. the external engine piping connection structure according to claim 1 with vibration-damping function, which is characterized in that described
One shell (2) is connected by screw bolts between the axial ends of second tube body respectively.
4. the external engine piping connection structure according to claim 3 with vibration-damping function, which is characterized in that the spiral shell
Bolt quantity includes at least two.
5. the external engine piping connection structure according to claim 1 with vibration-damping function, which is characterized in that the wave
Limit pressing plate (8), two limit pressing plates (8) difference coaxial sleeves are installed between bellows spring (4) and the first shell (2)
It is located on first tube body and the third tube body.
6. the external engine piping connection structure according to claim 1 with vibration-damping function, which is characterized in that described
The annular end cap of one shell (2) axially offers third through-hole, and the third through-hole offers internal screw thread, and is fitted with spacing top
Silk (9).
7. the external engine piping connection structure according to claim 6 with vibration-damping function, which is characterized in that single institute
The third through-hole quantity opened up in the first shell (2) stated is four, and there are four the limit jackscrews for corresponding setting
(9)。
8. the external engine piping connection structure according to claim 6 or 7 with vibration-damping function, which is characterized in that institute
Limit jackscrew (9) is stated to be threadedly attached in the third through-hole and hold out against the limit pressing plate (8).
9. according to the external engine piping connection structure described in claim 1 with vibration-damping function, which is characterized in that the piston
It (6) is clearance fit between the second shell (3).
10. according to the external engine piping connection structure described in claim 1 with vibration-damping function, which is characterized in that the work
It fills in coaxial sleeve on (6) outer wall and is equipped with a piston ring (7), the piston ring (7) limits the piston (6) and detaches described second
Shell (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810981677.6A CN109237190B (en) | 2018-08-27 | 2018-08-27 | External pipeline connecting structure of engine with vibration reduction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810981677.6A CN109237190B (en) | 2018-08-27 | 2018-08-27 | External pipeline connecting structure of engine with vibration reduction function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109237190A true CN109237190A (en) | 2019-01-18 |
| CN109237190B CN109237190B (en) | 2020-09-18 |
Family
ID=65068401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810981677.6A Active CN109237190B (en) | 2018-08-27 | 2018-08-27 | External pipeline connecting structure of engine with vibration reduction function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109237190B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207015A (en) * | 2020-01-22 | 2020-05-29 | 东风汽车集团有限公司 | Device for improving vibration of fuel supply pipeline |
| CN114109557A (en) * | 2021-10-28 | 2022-03-01 | 凯晟动力技术（嘉兴）有限公司 | Integrated engine oil pressure sensor |
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| CN2304799Y (en) * | 1997-09-11 | 1999-01-20 | 方瑞华 | Dual pipe counter-flow absorber |
| US20040026130A1 (en) * | 2000-11-27 | 2004-02-12 | Kriesels Petrus Cornelis | Hydraulic drill string accumulator |
| CN201059402Y (en) * | 2007-06-28 | 2008-05-14 | 西安建筑科技大学 | Expansion cushioning safety device |
| US20130340871A1 (en) * | 2012-06-26 | 2013-12-26 | Schaeffler Technologies AG & Co. KG | Pressure accumulator |
| CN105673987A (en) * | 2016-03-01 | 2016-06-15 | 浙江大学 | Frequency-adjustable flow pulsation attenuator |
| CN207499109U (en) * | 2017-05-12 | 2018-06-15 | 浙江工业职业技术学院 | A kind of PVC drain pipe convenient for assembling |
| CN207569403U (en) * | 2017-12-11 | 2018-07-03 | 长沙朗乐科技有限公司 | A kind of anti-dropout aluminium section connecting pieces |
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2018
- 2018-08-27 CN CN201810981677.6A patent/CN109237190B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2304799Y (en) * | 1997-09-11 | 1999-01-20 | 方瑞华 | Dual pipe counter-flow absorber |
| US20040026130A1 (en) * | 2000-11-27 | 2004-02-12 | Kriesels Petrus Cornelis | Hydraulic drill string accumulator |
| CN201059402Y (en) * | 2007-06-28 | 2008-05-14 | 西安建筑科技大学 | Expansion cushioning safety device |
| US20130340871A1 (en) * | 2012-06-26 | 2013-12-26 | Schaeffler Technologies AG & Co. KG | Pressure accumulator |
| CN105673987A (en) * | 2016-03-01 | 2016-06-15 | 浙江大学 | Frequency-adjustable flow pulsation attenuator |
| CN207499109U (en) * | 2017-05-12 | 2018-06-15 | 浙江工业职业技术学院 | A kind of PVC drain pipe convenient for assembling |
| CN207569403U (en) * | 2017-12-11 | 2018-07-03 | 长沙朗乐科技有限公司 | A kind of anti-dropout aluminium section connecting pieces |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207015A (en) * | 2020-01-22 | 2020-05-29 | 东风汽车集团有限公司 | Device for improving vibration of fuel supply pipeline |
| CN114109557A (en) * | 2021-10-28 | 2022-03-01 | 凯晟动力技术（嘉兴）有限公司 | Integrated engine oil pressure sensor |
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| Publication number | Publication date |
|---|---|
| CN109237190B (en) | 2020-09-18 |
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