CN110206648A - Vibration damping support device and turboshaft engine - Google Patents
Vibration damping support device and turboshaft engine Download PDFInfo
- Publication number
- CN110206648A CN110206648A CN201910470691.4A CN201910470691A CN110206648A CN 110206648 A CN110206648 A CN 110206648A CN 201910470691 A CN201910470691 A CN 201910470691A CN 110206648 A CN110206648 A CN 110206648A
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- support
- long tube
- vibration damping
- running
- ontology
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/20—Mounting or supporting of plant; Accommodating heat expansion or creep
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of vibration damping support device and turboshaft engines, vibration damping support device, for being supported to the long tube components in engine and vibration damping, including supporting ontology, support ontology includes: for ontology will to be supported to be mounted on the casing of engine and to the installing mechanism that support ontology is felt relieved, for being inserted into long tube and being looped around long pipe outer wall face to generate the supporting mechanism of damping vibration attenuation function to long tube；The wall surface that supporting mechanism is contacted with long tube uses the curved-surface structure with resilient support.Vibration damping support device of the invention, curved-surface structure provides support inside casing for the fixed long tube in outside, simultaneously there is the curved-surface structure of resilient support to have certain damping force to long tube, the direction of damping force is contrary with long tube vibration velocity, have the function of hindering long tube movement, to convert thermal dissipation for the kinetic energy of long tube vibration, the vibration of long tube will be effectively controlled, the final effect for generating damping vibration attenuation.
Description
Technical field
The present invention relates to turboshaft engine fields, particularly, are related to a kind of vibration damping support device.In addition, the present invention also relates to
And a kind of turboshaft engine including above-mentioned vibration damping support device.
Background technique
When long tube part time job in engine, air-flow (lubricating oil) fast speed, gas (lubricating oil) pressure in pipeline compared with
Greatly, the vibration problem of long tube components affects the reliable and stable work such as gas-turbine unit casing, bearing block than more prominent
Make.Towards internal long tube vibration problem typically result in threaded connection etc. fastening structures loosened after the longer working time
Phenomenon increases the vibration of long tube also, leads to gas leakage or lubrication leakage, injures gas-turbine unit casing and bearing
The safety and work of seat.In view of the above problems, currently, leading to internal long tube in the internal vibration damping branch without designing corresponding long tube
Support structure, or in the structure of the fixed long tube of interior design, although above structure relatively reduces the vibration of internal long tube,
It is the requirement relative to part life to vibration, vibrates or bigger.On the other hand, this long tube components are used as to lead to and start
The path of machine internal gas flow or lubricating oil, the requirement to service life intensity are very high.If the intensity service life of part is reduced, will be right
The bearing block of gas-turbine unit or casing service life generate large effect.If without this supporting way or be merely able to
Fixed function is provided in inside, without apparent effectiveness in vibration suppression, and the position of less demanding to vibration is only adapted to and uses.
Summary of the invention
The present invention provides a kind of vibration damping support device and turboshaft engines, are supported with the internal long tube that leads to for solving current
Mode can only provide fixed simple function, when lead to bearing block long tube when internal vibration is very big, traditional supporting way
The technical issues of not being able to satisfy requirement, and having a certain impact to the service life of long tube.
The technical solution adopted by the invention is as follows:
A kind of vibration damping support device, for being supported to the long tube components in engine and vibration damping, including support ontology,
Support ontology includes: the fitting machine for ontology will be supported to be mounted on the casing of engine and feel relieved to support ontology
Structure, for being inserted into long tube and being looped around long pipe outer wall face to generate the supporting mechanism of damping vibration attenuation function to long tube；Supporting mechanism
The wall surface contacted with long tube uses the curved-surface structure with resilient support.
Further, supporting mechanism bends the support running-on of enclosing formation using the local matrix of support ontology outward；
Alternatively, supporting mechanism is laid with the through-hole for being inserted into long tube using support ontology, enclosed along the flange that through-hole peripherally and outwardly extends
Keep off the support running-on formed.
Further, the plate body width of running-on surrounding is supported to be at least 1mm；The length for supporting running-on is 5mm~10mm.
Further, support running-on uses elastic band, be laid on curved-surface structure the fulcrum that second flexibly supports again with
Generate damping action；Alternatively, support running-on use elastic band, elastic band outside wall surface be equipped with multiple second flexibly support again with
Generate damping action；Alternatively, support running-on, using at least double-layer structure, first layer is connecing for the curved-surface structure with resilient support
Contact layer, the second layer are elastomeric damping layer；Alternatively, support running-on uses the combination of materials with different elastic deformation amounts to constitute；Or
Person, the deformable supports running-on that support running-on uses thickness circumferentially to change.
Further, support running-on and long tube are interference fitted；Magnitude of interference is 0.05mm~0.5mm.
Further, the elastic deformation amount for the curved-surface structure for supporting the free end of running-on to be laid with for increasing support running-on
With the vibration damping notch convenient for long tube insertion；Vibration damping notch is one；Alternatively, vibration damping notch be it is multiple, multiple vibration damping notches are propping up
Support set mouth is equidistantly laid.
Further, installing mechanism includes along the support the axially outwardly extending installation side in ontological idea of freedom end；Installation side is equipped with
Locking member for being detachably connected with casing and feeling relieved to support ontology.
Further, installation side includes the structure type of arc-shaped, rectangle, triangle or one of corrugated shape；
Locking member, which is adopted, at least one of to be tightened by bolts, is clamped locking, clamping locking or grafting locking.
Further, installing mechanism and supporting mechanism junction are equipped with the reinforcement convex ribs for reinforcing supporting bulk strength；
The protective layer for anti-corrosion and antirust is attached on support body outer surface.
According to another aspect of the present invention, a kind of turboshaft engine, including above-mentioned vibration damping support device are additionally provided, it is multiple
Vibration damping support device arranges along the axially spaced-apart of long tube and long tube is fixed on casing.
The invention has the following advantages:
Vibration damping support device of the invention, support ontology includes installing mechanism and supporting mechanism, and supporting mechanism connects with long tube
The wall surface of touching uses the curved-surface structure with resilient support, and curved-surface structure provides branch inside casing for the fixed long tube in outside
Support, while there is the curved-surface structure of resilient support to have certain damping force, the direction of damping force and long tube vibration velocity to long tube
It is contrary, have the function of hindering long tube movement, to convert thermal dissipation, the vibration of long tube for the kinetic energy of long tube vibration
It will be effectively controlled, the final effect for generating damping vibration attenuation.In addition, having the curved-surface structure of resilient support can be according to work
Itself adjustment is carried out as situation, the destruction to long tube is reduced, improves the service life of long tube.Vibration damping support device has good
It assembly technology, simple slim and graceful structure, high reliability and convenient for assembly and carries.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to accompanying drawings, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the vibration damping support device schematic perspective view of the preferred embodiment of the present invention；
Fig. 2 is the vibration damping support device top view of the preferred embodiment of the present invention；
Fig. 3 is the left diagram of vibration damping support device of the preferred embodiment of the present invention；And
Fig. 4 is the vibration damping support device diagrammatic cross-section of the preferred embodiment of the present invention.
Description of symbols:
1, ontology is supported；11, installing mechanism；111, side is installed；112, locking member；12, supporting mechanism；121, support sleeve
Mouthful；122, vibration damping notch.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Fig. 1 is the vibration damping support device schematic perspective view of the preferred embodiment of the present invention；Fig. 2 is preferred implementation of the present invention
The vibration damping support device top view of example；Fig. 3 is the left diagram of vibration damping support device of the preferred embodiment of the present invention；Fig. 4 is the present invention
The vibration damping support device diagrammatic cross-section of preferred embodiment.
As shown in Figure 1, the vibration damping support device of the present embodiment, for the long tube components in engine to be supported and are subtracted
Vibration, including support ontology 1, support ontology 1 include: for will support ontology 1 be mounted on the casing of engine and to support originally
The installing mechanism 11 that body 1 is felt relieved is made for being inserted into long tube and being looped around long pipe outer wall face with generating damping vibration attenuation to long tube
Supporting mechanism 12；The wall surface that supporting mechanism 12 is contacted with long tube uses the curved-surface structure with resilient support.Of the invention
Vibration damping support device, support ontology 1 includes installing mechanism 11 and supporting mechanism 12, and the wall surface that supporting mechanism 12 is contacted with long tube is adopted
The curved-surface structure of the flexible support of apparatus, curved-surface structure provide support inside casing for the fixed long tube in outside, have simultaneously
The curved-surface structure of resilient support has certain damping force to long tube, and the direction of damping force is contrary with long tube vibration velocity, tool
Play the role of hindering long tube movement, to convert thermal dissipation for the kinetic energy of long tube vibration, the vibration of long tube will be had
Effect control, the final effect for generating damping vibration attenuation.In addition, having the curved-surface structure of resilient support can carry out according to working condition
Itself adjustment, reduces the destruction to long tube, improves the service life of long tube.Vibration damping support device have good assembly technology,
It simple slim and graceful structure, high reliability and convenient for assembly and carries.
As shown in figures 1 and 3, in the present embodiment, supporting mechanism 12 is bent outward using the local matrix of support ontology 1
The support running-on 121 that enclosing is formed.Alternatively, supporting mechanism 12 is laid with the through-hole for being inserted into long tube, edge using support ontology 1
The support running-on 121 that the flange enclosing that through-hole peripherally and outwardly extends is formed.Above-mentioned supporting mechanism 12, which uses, supports running-on 121, and one
Aspect, the impact resistance that support running-on 121 constructs is stronger, even if after by long tube vibration deformation, it can be by itself knot
Structure adjustment reaches new equilibrium state, does not impact to the overall structure of vibration damping support device.On the other hand, to support ontology
Support 121 surface area of running-on that 1 outside extends is greater than the surface area of planar configuration, and the active force and load for vibrating generation can obtain
With dispersion, to improve mechanical resistance capabilities.The direction of support running-on 121 can be to support ontology 1 to face upward for level
Or downwards, it is also possible to tilt upward or downwards.According to the convenient suitable direction of selection of assembly space and assembly technology.It is preferred that
Ground, support running-on 121 are adopted as to support ontology 1 for horizontal plane upwardly direction.
In the present embodiment, the plate body width of support 121 surrounding of running-on is at least 1mm.The length for supporting running-on 121 is 5mm
~10mm.The plate body width of above-mentioned 121 surrounding of support running-on is at least 1mm, that is, supports the plate body inner wall side of 121 surrounding of running-on
The vertical range that line reaches support 121 outside wall surface of running-on is no less than 1mm, and support running-on 121 is avoided to be become by long tube vibration
Shape or cracking, the numerical value of specific vertical range will also be depending on the intensity of different materials.
In the present embodiment, support running-on 121 uses elastic band, is laid with the second branch flexibly supported again on curved-surface structure
Point is to generate damping action.Alternatively, support running-on 121 uses elastic band, elastic band outside wall surface is equipped with the multiple second bullets again
Property support to generate damping action.Alternatively, support running-on 121, using at least double-layer structure, first layer is with resilient support
The contact layer of curved-surface structure, the second layer are elastomeric damping layer.Alternatively, support running-on 121, which uses, has different elastic deformation amounts'
Combination of materials is constituted.Alternatively, the deformable supports running-on that support running-on 121 is circumferentially changed using thickness.Preferably, running-on is supported
121 use elastic band, and there are three the second fulcrums flexibly supported again for laying on curved-surface structure.It is long when long tube part time job
Pipe will appear vibration, can by support running-on 121 on elastic band and fulcrum synergistic effect to long tube wall surface generate damping
Effect control long tube amplitude size, long tube are supported the damping limitation of the curved spring deformation of running-on 121, the vibration of long tube components
Amplitude can not increase, to play the role of vibration damping and support.Support running-on 121 is increase accordingly for long tube difference wall surface diameter
On the second fulcrum number flexibly supported again.When fulcrum quantity n works according to long tube, depending on the vibration stress of generation.Assuming that
Generation vibration stress is σz, material yield stress is σmax, it is desirable that each fulcrum carrying on support 121 curved-surface structure of running-on
Stress be no more than respective material yield stress, i.e. σz/n≤σmax, fulcrum is in elastic deformation stage at this time.When stress unloads
Afterwards, the part of flexible deformation is still restored to the state of not stress, i.e. generation rebound phenomenon, carries out itself adjustment, extends certainly
The service life of body.
In the present embodiment, support running-on 121 and long tube are interference fitted.Magnitude of interference is 0.05mm~0.5mm.Above-mentioned support sleeve
Mouth 121 is interference fitted with long tube, is inserted into support running-on 121 in long tube, is supported the curved-surface structure of running-on 121 that elasticity occurs and is become
Shape, so that support running-on 121 more preferably clamps long tube.The fulcrum of flexible deformation generates damping action limit to the wall surface of long tube
Make long tube vibration.
As shown in Figure 1, Figure 2 and Figure 3, in the present embodiment, the free end of support running-on 121 is laid with for increasing support sleeve
The elastic deformation amount of the curved-surface structure of mouth 121 and the vibration damping notch 122 being inserted into convenient for long tube.Vibration damping notch 122 is one；Or
Person, vibration damping notch 122 be it is multiple, multiple vibration damping notches 122 support running-on 121 equidistantly lay.Vibration damping notch 122 makes support sleeve
Mouth 121 has good assembling and increases elastic deformation amount, and more conducively long tube achievees the effect that vibration damping, vibration stress is generated
Energy dissipation.In the case where meeting the requirement of fulcrum bearing stress and not influencing the rebound of fulcrum curved surface, support running-on 121
122 quantity of vibration damping notch and size are determined according to assembly technology and support 121 diameter of running-on, it may be possible to which a vibration damping lacks
Mouth 122, it is also possible to multiple vibration damping notches 122.When multiple vibration damping notches 122 are set, take it is symmetrical in support running-on 121 or
Person is uniformly distributed.
As shown in Figure 1 and Figure 4, in the present embodiment, installing mechanism 11 includes extending axially outward along support 1 free end of ontology
Installation side 111.Installation side 111 is equipped with the locking member for being detachably connected with casing and feeling relieved to support ontology 1
112.It is installed above by installation side 111 with casing, compared to the flat edge installation of support ontology 1, long tube vibration is produced
The gravity of raw active force and long tube itself point is sprinkling upon on installation side 111 and casing, installs side 111 and casing contact area is big,
Stress dispersion, reduction local pressure is excessive, reduces the abrasion on installation side 111 and casing.Above-mentioned installing mechanism 11 and casing pass through
Locking member 112 carries out locking positioning, during locking member 112 is locked, the circumferential position of adjustable support running-on 121,
Guarantee that support running-on 121 and long tube are concentric, guarantees support running-on 121 and the maximum contact area of long tube.
In the present embodiment, installation side 111 includes the structure of arc-shaped, rectangle, triangle or one of corrugated shape
Form.Locking member 112, which is adopted, at least one of to be tightened by bolts, is clamped locking, clamping locking or grafting locking.Above-mentioned installation side
111 shape selective multiplicity, to meet the requirement of different type casing.Above-mentioned arc-shaped, rectangle, triangle or corrugated
In, when installation, forced area is larger, installs more stable.Locking member 112, which is adopted, to be tightened by bolts, is clamped locking, clamping locking or inserts
Locking is connect, a variety of locking modes can also be used in combination, such as installation side 111 and long tube pass through bolt locking and pin lock
Tightly.It installs and is equipped with pin hole among side 111, the both ends of pin hole are respectively provided with bolt hole.
In the present embodiment, installing mechanism 11 and 12 junction of supporting mechanism are equipped with for reinforcing supporting adding for 1 intensity of ontology
Strong convex ribs.The protective layer for anti-corrosion and antirust is attached on support 1 outer surface of ontology.Support ontology 1 is an integral structure, and is tied
Structure span is larger, and the load that support 1 wall surface of ontology can be born is limited, is laid in installing mechanism 11 and 12 junction of supporting mechanism
Reinforce convex ribs, in the case where not increasing support 1 wall thickness of ontology, increases the intensity and rigidity of support ontology 1, overcome support ontology
1 because of the problem of deformation caused by wall thickness difference bring unbalanced stress, saves material, mitigates support 1 mass of ontology, reduce at
This.The overhanging end of support running-on 121 is reinforced or is constrained, and using the wall thickness or reinforcing rib for increasing overhanging end, avoids overhanging end
Stress is excessive and generates plastic deformation outward.
According to another aspect of the present invention, a kind of turboshaft engine, including above-mentioned vibration damping support device are additionally provided, it is multiple
Vibration damping support device arranges along the axially spaced-apart of long tube and long tube is fixed on casing.Packet inside turboshaft engine of the invention
Vibration damping support device is included, long tube is stably fixed on casing, to circulation airflow or cunning by excessively multiple vibration damping support device combinations
The long tube of oil, which is realized, stablizes support.Turboshaft engine of the invention has been carried out actual installation and uses, verified to expire
The design requirement of sufficient engine, in practice it has proved that its is reasonable, feasible.
Only described above is the preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of vibration damping support device, for being supported to the long tube components in engine and vibration damping, which is characterized in that including
It supports ontology (1), the support ontology (1) includes:
For the support ontology (1) to be mounted on the casing of the engine and is felt relieved to the support ontology (1)
Installing mechanism (11),
For being inserted into the long tube and being looped around the long pipe outer wall face to generate the support of damping vibration attenuation function to the long tube
Mechanism (12)；
The wall surface that the supporting mechanism (12) contacts with the long tube uses the curved-surface structure with resilient support.
2. vibration damping support device according to claim 1, which is characterized in that
The supporting mechanism (12) bends the support running-on of enclosing formation using the local matrix of support ontology (1) outward
(121)；Or
The supporting mechanism (12) is laid with the through-hole for being inserted into the long tube using support ontology (1), along described logical
The support running-on (121) that the flange enclosing that hole peripherally and outwardly extends is formed.
3. vibration damping support device according to claim 2, which is characterized in that
The plate body width of described support running-on (121) surrounding is at least 1mm；
The length of support running-on (121) is 5mm~10mm.
4. vibration damping support device according to claim 2, which is characterized in that
The support running-on (121) uses elastic band, be laid on the curved-surface structure fulcrum that second flexibly supports again with
Generate damping action；Or
The support running-on (121) use elastic band, the elastic band outside wall surface be equipped with multiple second flexibly support again with
Generate damping action；Or
For the support running-on (121) using at least double-layer structure, first layer is the contact layer of the curved-surface structure with resilient support,
The second layer is elastomeric damping layer；Or
Support running-on (121) is constituted using the combination of materials with different elastic deformation amounts；Or
The deformable supports running-on that support running-on (121) uses thickness circumferentially to change.
5. vibration damping support device according to claim 4, which is characterized in that
The support running-on (121) and the long tube are interference fitted；
Magnitude of interference is 0.05mm~0.5mm.
6. vibration damping support device according to claim 4, which is characterized in that
The free end of support running-on (121) is laid with the elasticity of the curved-surface structure for increasing support running-on (121)
Deflection and the vibration damping notch (122) being inserted into convenient for the long tube；
The vibration damping notch (122) is one；Or
The vibration damping notch (122) be it is multiple, multiple vibration damping notches (122) are in the equidistant laying of the support running-on (121).
7. vibration damping support device according to claim 1, which is characterized in that
The installing mechanism (11) includes along the axially outwardly extending installation side (111) in support ontology (1) free end；
Installation side (111) is equipped with for being detachably connected with the casing and supporting ontology (1) to feel relieved to described
Locking member (112).
8. vibration damping support device according to claim 7, which is characterized in that
Installation side (111) includes the structure type of arc-shaped, rectangle, triangle or one of corrugated shape；
The locking member (112), which is adopted, at least one of to be tightened by bolts, is clamped locking, clamping locking or grafting locking.
9. vibration damping support device according to any one of claims 1 to 8, which is characterized in that
The installing mechanism (11) and the supporting mechanism (12) junction are equipped with for reinforcing described support ontology (1) intensity
Reinforce convex ribs；
The protective layer for anti-corrosion and antirust is attached on described support ontology (1) outer surface.
10. a kind of turboshaft engine, which is characterized in that more including the described in any item vibration damping support devices of claim 1 to 9
A vibration damping support device arranges along the axially spaced-apart of long tube and the long tube is fixed on casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910470691.4A CN110206648B (en) | 2019-05-31 | 2019-05-31 | Vibration damping supporting device and turboshaft engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910470691.4A CN110206648B (en) | 2019-05-31 | 2019-05-31 | Vibration damping supporting device and turboshaft engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110206648A true CN110206648A (en) | 2019-09-06 |
| CN110206648B CN110206648B (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910470691.4A Active CN110206648B (en) | 2019-05-31 | 2019-05-31 | Vibration damping supporting device and turboshaft engine |
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| CN203488916U (en) * | 2013-08-12 | 2014-03-19 | 厦门嘉达声学技术有限公司 | Constrained damping vibration reduction structure for pipeline |
| CN204664630U (en) * | 2015-04-30 | 2015-09-23 | 中航商用航空发动机有限责任公司 | Pipeline damping body and the pipeline vibration damper of this pipeline damping body is set |
| CN206875040U (en) * | 2017-06-19 | 2018-01-12 | 上海加冷松芝汽车空调股份有限公司 | A kind of pipeline protects damping device |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1537818A2 (en) * | 2003-12-05 | 2005-06-08 | Honda Motor Co., Ltd. | Power blower |
| CN2886097Y (en) * | 2006-01-25 | 2007-04-04 | 沈阳黎明航空发动机(集团)有限责任公司 | Shock-absorption mounting device for fuel manifold in gas turbine |
| CN102224323A (en) * | 2008-11-21 | 2011-10-19 | 涡轮梅坎公司 | Positioning member for ring segment |
| CN202866995U (en) * | 2012-10-19 | 2013-04-10 | 浙江吉利汽车研究院有限公司杭州分公司 | Turbo-supercharger support |
| CN203488916U (en) * | 2013-08-12 | 2014-03-19 | 厦门嘉达声学技术有限公司 | Constrained damping vibration reduction structure for pipeline |
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| CN110206648B (en) | 2020-09-18 |
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