CN110159697A - Firer's gas-liquid isolation damper - Google Patents
Firer's gas-liquid isolation damper Download PDFInfo
- Publication number
- CN110159697A CN110159697A CN201910084815.5A CN201910084815A CN110159697A CN 110159697 A CN110159697 A CN 110159697A CN 201910084815 A CN201910084815 A CN 201910084815A CN 110159697 A CN110159697 A CN 110159697A
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- Prior art keywords
- gas
- firer
- accommodating chamber
- shell
- liquid
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Classifications
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/56—Means for adjusting the length of, or for locking, the spring or damper, e.g. at the end of the stroke
Abstract
The present invention provides a kind of firer's gas-liquid isolation dampers, the damper includes first shell, firer's gas combustion apparatus, floating piston part, first check valve, buffering liquid and piston rod assembly, first shell has the first accommodating chamber and the second accommodating chamber, one end of first shell is arranged in firer's gas combustion apparatus, firer's gas combustion apparatus is for generating buffer gas, floating piston part is movably disposed in first shell, first check valve is arranged on floating piston part, first check valve is for preventing movement of the buffer gas from the second accommodating chamber to the first accommodating chamber, buffering liquid is arranged in the second accommodating chamber, piston rod assembly is movably disposed in the second accommodating chamber, piston rod assembly has first through hole, isolation damper is by making buffering liquid flow through first through hole to provide fluid cushion damping force.It applies the technical scheme of the present invention, to solve the big high buffer damping performance of buffer in the prior art and locking cost, terrestrial operation and technical problem difficult in maintenance.
Description
Technical field
The present invention relates to aircraft buffer technology field more particularly to a kind of firer's gas-liquid isolation dampers.
Background technique
Aircraft buffer device mainly has two major classes at present: solid spring buffer damper and fluid spring buffering
Damper, wherein solid spring buffer damper core element is spring or rubber, fluid spring isolation damper core element
Normally gaseous, liquid or gas-liquid mixed.Working principle is discharged after solid spring buffer category energy storage, the simple, work with structure
Make reliably to be mainly used for the buffer damping of small aircraft and small magnitude, as small drone is risen and fallen with advantage easy to maintain
Frame buffer damping.The compression of liquid spring buffer category air and orifice restriction energy consumption working principle, especially gas-liquid buffer damping
Device, with best efficiency and function energy absorption capability, so the especially large-scale and big magnitude buffer damping of existing aircraft is big
Gas-liquid isolation damper is mostly used, as aircraft recycles buffer unit.
With the development of aircraft general technical, starts and constantly emerge new configuration, layout and function, to buffering
Damper requires higher and higher, major embodiment are as follows: it is required that isolation damper function is highly integrated；It is self-locking by isolation damper
It realizes buffer gear system lock, buffer gear system lock mechanism is not separately provided；The buffer damping of big magnitude is to damper
The gas pressure being inside filled with is higher and higher, and gas pressure is bigger, locks to buffer system original state and requires higher, ground
Operation or maintenance buffer gear system are more difficult, or even to design the special operation tooling of production, high buffer damping performance and lock
Determine the particularly thorny of big, the difficult in maintenance aspect of cost, it requires and be not only able to achieve a large amount of grade buffer dampings, but also be able to achieve locking
Cost is small, the functions such as easy to maintain, need to solve that damper buffer damping working condition ability is strong, original state power also big difficulty
Topic, traditional isolation damper have been difficult to meet the requirements.
Summary of the invention
The present invention provides a kind of firer's gas-liquid isolation damper, it is able to solve the high buffering of buffer in the prior art
Damping capacity and locking cost is big, terrestrial operation and technical problem difficult in maintenance.
The present invention provides a kind of firer's gas-liquid isolation damper, firer's gas-liquid isolation damper includes: first shell,
First shell has the first accommodating chamber and the second accommodating chamber；First shell is arranged in firer's gas combustion apparatus, firer's gas combustion apparatus
One end, firer's gas combustion apparatus is for generating buffer gas；Floating piston part, floating piston part are movably disposed at first shell
In vivo, the first accommodating chamber, the other end of floating piston part and first shell are formed between floating piston part and firer's gas combustion apparatus
Between form the second accommodating chamber；First check valve, the first check valve are arranged on floating piston part, and the first check valve is for preventing
Only movement of the buffer gas from the second accommodating chamber to the first accommodating chamber；Buffering liquid, buffering liquid are arranged in the second accommodating chamber；
Piston rod assembly, piston rod assembly are movably disposed in the second accommodating chamber, and piston rod assembly has first through hole, buffering
Damper is by making buffering liquid flow through first through hole to provide fluid cushion damping force.
Further, piston rod assembly has lock hole, and lock hole is arranged in the outside wall surface of piston rod assembly；Firer
Gas-liquid isolation damper further includes second shell, elastic component, ladder locking piece, connecting pipe and spill valve, second shell
It is connected to first shell, second shell has housing accommodating chamber, and elastic component is arranged in second shell, and ladder locking piece is removable
It is arranged in second shell and between elastic component and first shell dynamicly, ladder locking piece has abutting end and keyed end,
Abutting end is abutted with elastic component, and keyed end is used to cooperate with lock hole piston rod assembly is fixed on setting position；First holds
Chamber of receiving includes the first cavity and the second cavity, and the first cavity is arranged between firer's gas combustion apparatus and spill valve, the second chamber
Body is arranged between spill valve and floating piston part, and connecting pipe is connect with the first cavity and housing accommodating chamber respectively, overflows
Stream valve module makes buffer gas pass through connecting pipe when not up to setting pressure threshold for pressure in the first cavity
Into housing accommodating chamber to realize that keyed end is separated with lock hole.
Further, the oil pressure relief of spill valve and the product of the face area of the keyed end of ladder locking piece are big
In 1.5 times of the ultimate resilience value of elastic component.
Further, piston rod assembly includes piston rod and piston ring, and piston ring is fixed at one end of piston rod,
First through hole is arranged on the piston ring, and piston rod has liquid containing chamber and the second through-hole, and piston rod includes partition, and partition is set
Set it is intracavitary in liquid containing, the second through-hole be arranged on partition；Firer's gas-liquid isolation damper further includes buffering spindle, buffering
Spindle is fixed on floating piston part, and buffering spindle with the second through-hole for matching to change the overcurrent of buffering liquid
Area.
Further, buffering spindle has gas flow aperture, and the close floating that buffering spindle is arranged in gas flow aperture is living
One end of plug member, the other end for buffering spindle is pyramidal structure, and pyramidal structure is matched with the second through-hole to change buffering liquid
Area of passage.
Further, gas-liquid isolation damper further includes filter assemblies, and filter assemblies are arranged in the first accommodating chamber, mistake
It filters component to be arranged close to firer's gas combustion apparatus, filter assemblies are used to filter the solid particle in buffer gas.
Further, gas-liquid isolation damper further includes second one-way valve group, and the setting of second one-way valve group is accommodated first
Intracavitary, spill valve is arranged between filter assemblies and second one-way valve group, and second one-way valve group is for preventing buffer gas
Movement from from the second accommodating chamber to the first accommodating chamber.
Further, there are second one-way valve group multiple uniform intervals unidirectional flow channels are arranged.
Further, the area of the unidirectional flow channels of the first check valve is less than or equal to any of second one-way valve group
The area of one unidirectional flow channels.
Further, first shell has the limit conical surface, and the limit conical surface is arranged in the housing surface of the first accommodating chamber, floats
Piston part has taper positioning surface, and taper positioning surface is matched with limit taper to realize floating piston part in first shell
Interior positioning.
It applies the technical scheme of the present invention, provides a kind of firer's gas-liquid isolation damper, firer's gas-liquid buffer damping
At the beginning of device utilizes firer's gas combustion apparatus characteristic, i.e., the characteristic that non-operating mode does not generate gas and resistance to solve isolation damper
The problem that beginning state power is big, ground maintenance is difficult.Under working condition, using firer's gas combustion apparatus generate buffer gas and with it is slow
Fliud flushing body throttle effect collective effect realizes the big magnitude buffer damping of working condition, and buffering resistance can be substantially improved under the conditions of
The buffer damping comprehensive performance of Buddhist nun's device advantageously reduces the complex structural designs degree of isolation damper.
Detailed description of the invention
Included attached drawing is used to provide to be further understood from the embodiment of the present invention, and which constitute the one of specification
Part for illustrating the embodiment of the present invention, and comes together to illustrate the principle of the present invention with verbal description.Under it should be evident that
Attached drawing in the description of face is only some embodiments of the present invention, for those of ordinary skill in the art, is not paying wound
Under the premise of the property made is worked, it is also possible to obtain other drawings based on these drawings.
Fig. 1 shows the firer's gas-liquid isolation damper provided according to a particular embodiment of the invention and is in original state
Cross-sectional view；
Fig. 2 shows the firer's gas-liquid isolation dampers provided according to a particular embodiment of the invention to be in buffer damping
The cross-sectional view of state.
Wherein, the above drawings include the following reference numerals:
10, first shell；10a, the first accommodating chamber；101a, the first cavity；102a, the second cavity；10b, second accommodate
Chamber；20, firer's gas combustion apparatus；21, buffer gas；30, floating piston part；40, the first check valve；50, buffering liquid；60, living
Stopper rod component；60a, first through hole；60b, lock hole；61, piston rod；61a, liquid containing chamber；61b, the second through-hole；611,
Partition；62, piston ring；70, second shell；70a, housing accommodating chamber；80, elastic component；90, ladder locking piece；90a, cooperation
End；90b, keyed end；100, connecting pipe；110, spill valve；120, spindle is buffered；120a, gas flow aperture；130,
Filter assemblies；140, second one-way valve group；150, oil filled port；160, blocking ring；170, the first sealing ring；180, the second sealing ring；
190, third sealing ring；200, trunnion.
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.Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or
Any restrictions used.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Every other embodiment obtained is put, shall fall within the protection scope of the present invention.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular shape
Formula be also intended to include plural form, additionally, it should be understood that, when in the present specification use term "comprising" and/or
When " comprising ", existing characteristics, step, operation, device, component and/or their combination are indicated.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorization and say
A part of bright book.In shown here and discussion all examples, any occurrence should be construed as merely exemplary
, not as limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar
Label and letter similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, then exist
In subsequent attached drawing do not need that it is further discussed.
As depicted in figs. 1 and 2, according to a particular embodiment of the invention, a kind of firer's gas-liquid isolation damper is provided,
Firer's gas-liquid isolation damper include first shell 10, firer's gas combustion apparatus 20, floating piston part 30, the first check valve 40,
Buffering liquid 50 and piston rod assembly 60, first shell 10 have the first accommodating chamber 10a and the second accommodating chamber 10b, firer's combustion gas
One end of first shell 10 is arranged in device 20, and for firer's gas combustion apparatus 20 for generating buffer gas 21, floating piston part 30 can
It is movably arranged in first shell 10, forms the first accommodating chamber 10a between floating piston part 30 and firer's gas combustion apparatus 20,
The second accommodating chamber 10b is formed between floating piston part 30 and the other end of first shell 10, the setting of the first check valve 40 is floating
On piston part 30, the first check valve 40 is for preventing buffer gas 21 from the second accommodating chamber 10b to the first accommodating chamber 10a's
Mobile, buffering liquid 50 is arranged in the second accommodating chamber 10b, and piston rod assembly 60 is movably disposed at the second accommodating chamber 10b
Interior, piston rod assembly 60 has first through hole 60a, and isolation damper is by making buffering liquid 50 flow through first through hole 60a to mention
For liquid buffer damping power.
Using such configuration mode, a kind of firer's gas-liquid isolation damper is provided, firer's gas-liquid isolation damper benefit
With firer's gas combustion apparatus characteristic, i.e., non-operating mode does not generate gas and the characteristic of resistance solves isolation damper initial shape
The problem that state power is big, ground maintenance is difficult.Under working condition, buffer gas and and buffer are generated using firer's gas combustion apparatus
Body throttle effect collective effect realizes the big magnitude buffer damping of working condition, and isolation damper can be substantially improved under the conditions of
Buffer damping comprehensive performance, advantageously reduce the complex structural designs degree of isolation damper.
As a specific embodiment of the invention, after the completion of the gas production of firer's gas combustion apparatus, operating pressure and work
Pressure of Ambient Temperature can directly select matured product or new produce is developed by special producer's specific aim according to damper performance requirement
Product.It is relatively low to performance requirement is released in view of isolation damper, in conjunction with the disposable rapid operation characteristic of priming system, use
Burn rate is relatively slow, clean main combustion medicine after burning, and using control combustion face measure, reduces the speed that combustion gas generates.In selected maturation
When product and custom-made firer's gas combustion apparatus, since gas quantity is directly related with Pressure of Ambient Temperature in work completion rear chamber, certainly
Determine the upper limit of buffer damping, therefore needs the gas quantity of important requirement firer's gas combustion apparatus.In the present embodiment, it can be used floating
For piston ring as floating piston part, the major function of floating piston ring is to increase buffering resistance to realize two-stage buffer damping
The middle position of floating piston part 30, the material of floating piston ring is arranged in the cover width and amplitude of Buddhist nun, the first check valve 40
Material is high-strength alloy steel.
Further, in the present invention, lock to complete piston rod assembly under working condition and off working state and
The automatic conversion of unlocked state can be matched piston rod assembly 60 with giving full play to the buffer damping effect of high-pressure buffer gas 21
It is set to and is arranged in the outside wall surface of piston rod assembly 60 with lock hole 60b, lock hole 60b；Firer's gas-liquid isolation damper is also
Including second shell 70, elastic component 80, ladder locking piece 90, connecting pipe 100 and spill valve 110, second shell 70 with
First shell 10 is connected to, and second shell 70 has housing accommodating chamber 70a, and elastic component 80 is arranged in second shell 70, ladder lock
Determine part 90 to be movably disposed in second shell 70 and between elastic component 80 and first shell 10, ladder locking piece 90
With abutting end 90a and keyed end 90b, abutting end 90a is abutted with elastic component 80, and keyed end 90b with lock hole 60b for matching
It closes so that piston rod assembly 60 is fixed on setting position；First accommodating chamber 10a includes the first cavity 101a and the second cavity
102a, the first cavity 101a are arranged between firer's gas combustion apparatus 20 and spill valve 110, and the second cavity 102a setting exists
Between spill valve 110 and floating piston part 30, connecting pipe 100 respectively with the first cavity 101a and housing accommodating chamber 70a
Connection, spill valve 110 make buffer gas when not up to setting pressure threshold for the pressure in the first cavity 101a
21 enter housing accommodating chamber 70a by connecting pipe 100 to realize that keyed end 90b is separated with lock hole 60b.
Using such configuration mode, in the ground maintenance stage, abutted against by ladder locking piece with piston rod assembly, this
When ladder locking piece hold and cut, piston rod assembly is fixedly connected with first shell, and isolation damper is in the lock state.It is working
Stage, Xiang Huogong gas combustion apparatus issue ignition signal, and firer's gas combustion apparatus works to generate high pressure-temperature combustion gas, when the first chamber
When intracorporal pressure not up to sets pressure threshold, buffer gas 21 is accommodated by the shell that connecting pipe flow to second shell
Chamber, ladder locking piece are compressed by buffer gas 21, overcome the elastic force of elastic component to realize the lock of keyed end and piston rod assembly
Determine hole separation, when the intracorporal pressure of the first chamber reach setting pressure threshold when, at this time buffer gas 21 by spill valve according to
Secondary to enter the second cavity and the second accommodating chamber, the throttle effect that buffer gas 21 overcomes buffering liquid to flow is synchronous to push floating
Piston piece and piston rod assembly movement in place, that is, have the condition of buffer damping.Such mode passes through firer's gas combustion apparatus work
Make the combustion gas generated to the active force of ladder locking piece, the automatic unlocking of ladder locking piece is realized, to complete piston rod assembly
The automatic conversion of locking and unlocking state under working condition and off working state, to give full play to high-pressure buffer gas 21
Buffer damping effect.
It further, in the present invention, can be by spill valve in order to realize the quick release of ladder locking piece
The product of 110 oil pressure relief and the face area of the keyed end 90b of ladder locking piece 90 is configured to the pole greater than elastic component 80
Limit 1.5 times of value of elastic.As a specific embodiment of the invention, locking pin can be used as ladder locking piece, spring is made
For elastic component, the major function of locking pin is to realize the locking of piston rod assembly and first shell, and the material of locking pin is high-strength
Steel alloy.The major function of spring is to realize that locking pin maintains latched position, and the material of spring is 60Si2Mn.Overflow valve group
The major function of part 110 is to first pass through gas before high-pressure buffer gas 21 does not flow to the second accommodating chamber and realize locking pin solution
Lock is conducted when reaching setting pressure threshold to the second cavity, and spill valve 110 can directly select matured product or be directed to
Property is newly ground.The main function of connecting pipe is the power source for transmitting locking pin unlock, i.e. high-pressure buffer gas, connecting pipe
Material is stainless steel.
In addition, in the present invention, in order to improve the buffer damping effect of buffering liquid, being overloaded with completion to large impact
Balance is put with dilute, can configure piston rod assembly 60 to include piston rod 61 and piston ring 62, piston ring 62 is fixed at work
One end of stopper rod 61, first through hole 60a are arranged on piston ring 62, and piston rod 61 has liquid containing chamber 61a and the second through-hole
61b, piston rod 61 include partition 611, and partition 611 is arranged in liquid containing chamber 61a, and the second through-hole 61b is arranged in partition
On 611；Firer's gas-liquid isolation damper further includes buffering spindle 120, and buffering spindle 120 is fixed at floating piston part 30
On, buffering spindle 120 is for matching with the second through-hole 61b to change the area of passage of buffering liquid 50.
Using such configuration mode, after firer's gas-liquid isolation damper is overloaded by large impact, impact force is passed to
The first through hole of the piston rod assembly of damper, piston rod snapback, piston ring end face edge flows fast through buffering liquid,
To generate throttling energy consumption effect.While first accommodating chamber and the compression energy consumption of the second accommodating chamber, chamber pressure is incrementally increased, and delays
The gap rushed between spindle and the second through-hole of piston rod gradually becomes smaller, and oil liquid is from the second through-hole in first through hole and partition
Place's throttling energy consumption incrementally increases, until completing the balance overloaded to large impact and dilute putting.As a specific implementation of the invention
Example, as shown in Fig. 2, being arranged at intervals with two first through hole on the piston ring.
As a specific embodiment of the invention, the major function of piston rod assembly is to transmit foreign impacts mistake
It carries, the second through-hole of hydraulic oil and throttling is disposed in piston rod, the material of piston rod assembly is high-strength alloy steel.At this
In embodiment, hydraulic oil can be used as buffering liquid, hydraulic oil is the fluid media (medium) of aperture overcurrent effect, specially No. 15
Aero oil, can directly commercially available or customization.
Further, in the present invention, the second receiving is flow in order to realize that the buffer gas 21 in the first accommodating chamber is smooth
Chamber can will buffer spindle 120 and be configured to that buffering spindle 120 is arranged in gas flow aperture 120a, gas flow aperture 120a
Close to one end of floating piston part 30, the other end of buffering spindle 120 is pyramidal structure, pyramidal structure and the second through-hole 61b phase
Cooperate to change the area of passage of buffering liquid 50.As a specific embodiment of the invention, the main of spindle 120 is buffered
Function is to control orifice size to improve throttling energy efficiency, and material is high-strength alloy steel.
In addition, in the present invention, in order to ensure the smoothness that buffer gas 21 flows, gas-liquid isolation damper can be matched
Being set to further includes filter assemblies 130, and filter assemblies 130 are arranged in the first accommodating chamber 10a, and filter assemblies 130 are fired close to firer
Device of air 20 is arranged, and filter assemblies 130 are used to filter the solid particle in buffer gas 21.
As a specific embodiment of the invention, filter assemblies 130 are directly facing high-temperature buffer gas 21, filtering group
The major function of part 130 is the solid particle in filtering high temperature buffer gas 21, it is ensured that the smoothness of other subsequent flowings, mistake
The material of main part for filtering component 130 is stainless steel 2Cr13, and the particle diameter after filtering in buffer gas 21 is no more than 0.05mm, can
Directly selected matured product or specific aim are newly ground.Impact in order to avoid high temperature and pressure buffer gas 21 to filter assemblies is selected
When matured product or specific aim customize, inlet porting blocking parts is needed.
Further, in the present invention, the reflux in order to avoid buffer gas from the second accommodating chamber to the first accommodating chamber,
It can configure gas-liquid isolation damper to further include second one-way valve group 140, the setting of second one-way valve group 140 is accommodated first
In chamber 10a, spill valve 110 is arranged between filter assemblies 130 and second one-way valve group 140, second one-way valve group 140
For preventing movement of the buffer gas 21 from the second accommodating chamber 10b to the first accommodating chamber 10a.
As a specific embodiment of the invention, there are second one-way valve group 140 multiple uniform intervals unidirectional mistake is arranged
Circulation road.Specifically, as depicted in figs. 1 and 2, the major function of second one-way valve group 140 is that high pressure gas is delivered to second
Cavity, and the second cavity gas backstreaming is avoided, unidirectional flow channels are not less than 3, and main purpose is to concentrate high pressure gas
In the second cavity, it directly can select matured product or specific aim is newly ground.In addition, in the present invention, the list of the first check valve 40
It is less than or equal to the area of any one unidirectional flow channels of second one-way valve group 140 to the area of flow channels.Such side
Under formula, the stage is extended in damper, it is ensured that have a constant volume in the case where the first accommodating chamber gas pressure on the left of guarantee
Gas enters the second accommodating chamber, to realize subsequent buffering recycling stroke initial stage oil liquid buffering.It is formed in buffering recycling, just
Beginning section piston rod movement is gas liquid buffering, and after moving a distance, piston rod assembly is transported to the left jointly with floating piston part
It is dynamic.
Further, in the present invention, in order to the ground maintenance stage realize floating piston part positioning, such as Fig. 2 institute
Show, first shell 10 can be configured to there is the limit conical surface, the limit conical surface is arranged in the housing surface of the first accommodating chamber 10a, floats
Piston part 30 has taper positioning surface, and taper positioning surface is matched with limit taper to realize floating piston part 30 first
Positioning in shell 10.As the other embodiment of the present invention, floating piston part 30 can also be not provided with taper positioning surface, only lead to
The limit conical surface crossed in first shell 10 limits floating piston part.
In addition, in the present invention, firer's gas-liquid isolation damper further includes oil filled port 150, blocking ring 160, the first sealing ring
170, the second sealing ring 180, third sealing ring 190 and trunnion 200, oil filled port 150 are arranged in first shell 10, oil filled port
150 are filled with the interface of the second accommodating chamber for hydraulic oil, and oil filled port 150 can directly purchase standard component or customization, but need to meet unidirectional
Valve characteristic.The other end of first shell 10 is arranged in blocking ring 160, and the major function of blocking ring 160 is for guide support piston rod
With facilitate isolation damper to install, the material of blocking ring 160 is high-strength alloy steel.The major function of first shell 10 is will to buffer
Each component of damper integrates and bears gas and fluid pressure, and the material of first shell 10 is high strength alloy steel.Trunnion 200
It is arranged in first shell 10, the major function of trunnion 200 is to connect isolation damper and aircraft matrix, trunnion
200 material is high strength alloy steel.It is sealed between floating piston part and first shell 10 by the first sealing ring 170,
It is sealed between piston rod assembly and first shell 10 by the second sealing ring 180, is passed through between piston rod and blocking ring 160
Third sealing ring 190 is sealed.
Further understand to have to the present invention, firer's gas-liquid isolation damper of the invention is carried out below detailed
Explanation.
As depicted in figs. 1 and 2, a kind of firer's gas-liquid isolation damper is provided according to a particular embodiment of the invention, it should
Firer's gas-liquid isolation damper includes first shell 10, firer's gas combustion apparatus 20, floating piston part 30, the first check valve 40, delays
Fliud flushing body 50, piston rod assembly 60, second shell 70, elastic component 80, ladder locking piece 90, connecting pipe 100, overflow valve group
Part 110, buffering spindle 120, filter assemblies 130, second one-way valve group 140, oil filled port 150, blocking ring 160, the first sealing ring
170, the second sealing ring 180, third sealing ring 190 and trunnion 200, wherein using locking pin as ladder locking piece, spring
As elastic component, hydraulic oil is as buffering liquid, and floating piston ring is as floating piston part, firer's gas combustion apparatus 20, filtering
Component 130, spill valve 110, second one-way valve group 140, trunnion 200, oil filled port 150, blocking ring 160 and connecting pipe 100
It is fixedly connected respectively with first shell 10, second shell 70 is connected to first shell 10, and second shell 70 has housing accommodating chamber
70a, elastic component 80 are arranged in second shell 70, and ladder locking piece 90 is movably disposed in second shell 70 and is located at
Between elastic component 80 and first shell 10.
Buffering spindle 120 and the first check valve 40 are fixedly connected with floating piston part 30 respectively, piston rod assembly and first
Shell 10, the cooperation of 160 small―gap suture of blocking ring, floating piston part 30 and 10 small―gap suture of first shell cooperate, locking pin and first shell
The cooperation of 10 small―gap sutures, is sealed between piston rod and blocking ring 160 by third sealing ring 190, piston rod assembly and first shell
It is sealed between body 10 by the second sealing ring 180, passes through the first sealing ring between floating piston part and first shell 10
170 are sealed, and by sealant or seal with elastometic washer, locking pin passes through with first shell 10 for blocking ring 160 and first shell 10
Seal with elastometic washer.
The working principle of firer's gas-liquid isolation damper provided by the present invention is specific as follows.
(1) in the ground maintenance stage.When locking pin is in the lock state, locking pin, which is held, to be cut, piston rod assembly 60 and first
Shell 10 is fixedly connected, and buffer gear system lock can be realized by the way that isolation damper is self-locking, floating piston ring is limiting at this time
Positioning is realized under the action of the position conical surface and assembling process compressed air.When locking pin is in locking unlocked state, manual override bullet
Spring force realizes locking pin locking unlock, pulls piston rod to overcome the throttle effect resistance at a slow speed of hydraulic oil, with lesser power
Piston rod is pulled out, only piston rod push-in (can only need to be needed that throttle effect resistance, speed are got at a slow speed in place at a slow speed when push-in
Slow power is smaller).
(2) damper rod releases working stage.Give firer's gas combustion apparatus 20 ignition signal, firer's gas combustion apparatus 20
Work generates high-temperature high-pressure fuel gas, and when passing through filter assemblies, solid particle of the diameter greater than 0.05mm is filtered, and gas passes through
Connecting pipe 100 flow to locking pin annular end face, and spring force is overcome to realize locking pin locking unlock；Gas pressure reaches simultaneously
When the operating pressure of spill valve 110, gas flow to the second cavity by second one-way valve group 140 (at least three channel),
The intracorporal gas of second chamber is flow to the second accommodating chamber (hydraulic fluid chamber) by the first check valve on floating piston ring, and to floating
Piston ring generates thrust, under the first accommodating chamber and the effect of the second accommodating chamber gas, overcomes the section of hydraulic fluid chamber liquid flowing
Effect is flowed, it is synchronous to push floating piston ring and piston rod movement in place, that is, have the condition of buffer damping.
(3) damper rod retraction working stage (buffer damping stage).Buffer damping system corresponds to component by big
After impact acceleration, is converted by mechanism and be transferred to damper rod, piston rod snapback, piston rod end face edge
Two first through hole flow fast through hydraulic oil, generate throttling energy consumption effect.What the first accommodating chamber and the compression of the second accommodating chamber were consumed energy
Meanwhile chamber pressure gradually becomes larger (movement energy consumption incrementally increases under the same terms), buffers the gap between spindle and piston rod
Gradually become smaller, oil liquid throttles to consume energy from two, edge first through hole and intermediate gap and incrementally increase, until completing to large impact
It the balance of overload and dilute puts.
(4) damper rod releases working stage again.It is acted in the first accommodating chamber and the second accommodating chamber high pressure gas
Under, piston rod overcomes hydraulic oil throttling effect to be pushed outwardly, until moving to buffer damping position, carries out big overload next time
Damping of shocks damping.
In conclusion the damper passes through firer's gas combustion apparatus the present invention provides a kind of firer's gas-liquid isolation damper
The combustion gas generated work to the active force of ladder locking pin annular end face, realizes locking pin locking unlock；By filter assemblies,
Spill valve and check valve assembly matched design solve the problems, such as gas-liquid isolation damper itself latch-up-free unlocking function
And the contradiction of high inflation pressure and ground maintenance complexity after inflation, buffer damping comprehensive performance, function can be substantially improved under the conditions of
Energy integrated level is high, advantageously reduces buffer gear design complexities, can satisfy aircraft requirement；Pass through firer's combustion gas
Big magnitude buffer damping is realized in the high pressure gas compression and liquid throttling energy consumption that sex work of device generates；It is fired using firer
The characteristic that device of air characteristic, i.e. non-operating mode do not generate gas and resistance solve isolation damper original state power it is big,
Face problem difficult in maintenance.Firer's gas-liquid isolation damper provided by the present invention compared with prior art, has following excellent
Point.
First, firer's gas-liquid isolation damper of the invention solves the integrated locking unlocking technology problem of isolation damper,
Buffer damping system authority complexity can be reduced, the shortcomings that locking unlocking mechanism need to be separately provided in prior art mechanism is overcome.
Second, the buffer damping performance of firer's isolation damper provided by the present invention is good, terrestrial operation and maintenance side
Just, it solves the contradiction of big buffer damping performance Yu ground maintenance difficulty, can be widely applied to aircraft buffer damping System Computer
In terms of structure.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top "
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation),
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as pair
The limitation of the scope of the present invention.
The foregoing is only a 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
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of firer's gas-liquid isolation damper, which is characterized in that firer's gas-liquid isolation damper includes:
First shell (10), the first shell (10) have the first accommodating chamber (10a) and the second accommodating chamber (10b)；
Firer's gas combustion apparatus (20), firer's gas combustion apparatus (20) are arranged in one end of the first shell (10), the fire
Work gas combustion apparatus (20) is for generating buffer gas；
Floating piston part (30), the floating piston part (30) are movably disposed in the first shell (10), described floating
First accommodating chamber (10a), the floating piston part are formed between piston part (30) and firer's gas combustion apparatus (20)
(30) second accommodating chamber (10b) is formed between the other end of the first shell (10)；
First check valve (40), first check valve (40) are arranged on the floating piston part (30), and described first is unidirectional
Valve (40) is for preventing buffer gas by the movement of the second accommodating chamber (10b) first accommodating chamber of Xiang Suoshu (10a)；
Buffering liquid (50), the buffering liquid (50) are arranged in second accommodating chamber (10b)；
Piston rod assembly (60), the piston rod assembly (60) is movably disposed in second accommodating chamber (10b), described
Piston rod assembly (60) has first through hole (60a), and the isolation damper is described by flowing through the buffering liquid (50)
First through hole (60a) is to provide fluid cushion damping force.
2. firer's gas-liquid isolation damper according to claim 1, which is characterized in that the piston rod assembly (60) has
Lock hole (60b), the lock hole (60b) are arranged in the outside wall surface of the piston rod assembly (60)；Firer's gas-liquid is slow
Rushing damper further includes second shell (70), elastic component (80), ladder locking piece (90), connecting pipe (100) and overflow valve group
Part (110), the second shell (70) are connected to the first shell (10), and the second shell (70) has housing accommodating chamber
(70a), in the second shell (70), the ladder locking piece (90) is movably disposed at for elastic component (80) setting
In the second shell (70) and between the elastic component (80) and the first shell (10), the ladder locking piece
(90) there is abutting end (90a) and keyed end (90b), the abutting end (90a) abuts with the elastic component (80), the locking
(90b) is held to be used to cooperate with the lock hole (60b) the piston rod assembly (60) is fixed on setting position；Described first
Accommodating chamber (10a) includes the first cavity (101a) and the second cavity (102a), and first cavity (101a) is arranged in the fire
Between work gas combustion apparatus (20) and the spill valve (110), second cavity (102a) is arranged in the overflow valve group
Between part (110) and the floating piston part (30), the connecting pipe (100) respectively with first cavity (101a) and institute
Housing accommodating chamber (70a) connection is stated, pressure of the spill valve (110) in first cavity (101a) does not reach
To setting pressure threshold when make buffer gas by the connecting pipe (100) entrance the housing accommodating chamber (70a) with reality
The existing keyed end (90b) separates with the lock hole (60b).
3. firer's gas-liquid isolation damper according to claim 2, which is characterized in that the spill valve (110)
The product of the face area of oil pressure relief and the keyed end (90b) of the ladder locking piece (90) is greater than the elastic component (80)
1.5 times of ultimate resilience value.
4. firer's gas-liquid isolation damper according to claim 2, which is characterized in that the piston rod assembly (60) includes
Piston rod (61) and piston ring (62), the piston ring (62) are fixed at one end of piston rod (61), the first through hole
(60a) is arranged on the piston ring (62), and the piston rod (61) has liquid containing chamber (61a) and the second through-hole (61b),
The piston rod (61) includes partition (611), and partition (611) setting is in the liquid containing chamber (61a), and described second
Through-hole (61b) is arranged on the partition (611)；Firer's gas-liquid isolation damper further includes buffering spindle (120), described
Buffering spindle (120) is fixed on the floating piston part (30), and the buffering spindle (120) is used to lead to described second
Hole (61b) is matched to change the area of passage of buffering liquid (50).
5. firer's gas-liquid isolation damper according to claim 4, which is characterized in that the buffering spindle (120) has
Gas flow aperture (120a), gas flow aperture (120a) setting are lived buffering spindle (120) close to the floating
One end of plug member (30), the other end of buffering spindle (120) are pyramidal structure, the pyramidal structure and second through-hole
(61b) is matched to change the area of passage of buffering liquid (50).
6. firer's gas-liquid isolation damper according to any one of claim 1 to 5, which is characterized in that the gas-liquid is slow
Rushing damper further includes filter assemblies (130), and filter assemblies (130) setting is described in first accommodating chamber (10a)
Filter assemblies (130) are arranged close to firer's gas combustion apparatus (20), and the filter assemblies (130) are for filtering in buffer gas
Solid particle.
7. firer's gas-liquid isolation damper according to claim 6, which is characterized in that the gas-liquid isolation damper also wraps
It includes second one-way valve group (140), second one-way valve group (140) setting is in first accommodating chamber (10a), the overflow
Valve module (110) is arranged between the filter assemblies (130) and the second one-way valve group (140), the second one-way valve
Group (140) is for preventing buffer gas by the movement of the second accommodating chamber (10b) first accommodating chamber of Xiang Suoshu (10a).
8. firer's gas-liquid isolation damper according to claim 7, which is characterized in that the second one-way valve group (140)
With multiple uniform intervals, unidirectional flow channels are set.
9. firer's gas-liquid isolation damper according to claim 8, which is characterized in that the list of first check valve (40)
It is less than or equal to the area of any one unidirectional flow channels of the second one-way valve group (140) to the area of flow channels.
10. firer's gas-liquid isolation damper according to claim 7, which is characterized in that the first shell (10) has
Limit the conical surface, housing surface of the limit conical surface setting in first accommodating chamber (10a), floating piston part (30) tool
There is taper positioning surface, the taper positioning surface is matched with the limit taper to realize the floating piston part (30) described
Positioning in first shell (10).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910084815.5A CN110159697B (en) | 2019-01-29 | 2019-01-29 | Gas-liquid buffer damper for initiating explosive device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910084815.5A CN110159697B (en) | 2019-01-29 | 2019-01-29 | Gas-liquid buffer damper for initiating explosive device |
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| CN110159697B CN110159697B (en) | 2020-09-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119033A (en) * | 2020-02-11 | 2020-05-08 | 郭云美 | Novel anti-seismic damper for bridge safety and implementation method |
| CN113944716A (en) * | 2021-10-18 | 2022-01-18 | 邹怀琴 | High-temperature-resistant self-extinguishing shock absorber |
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| CN1170101A (en) * | 1996-06-25 | 1998-01-14 | 王明珠 | Single cylinder aerating bidirectional vibration absorber |
| CN2663730Y (en) * | 2003-11-22 | 2004-12-15 | 重庆渝安创新科技(集团)有限公司 | Inflatable rear shock absorber with adjustable damping |
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| CN111119033A (en) * | 2020-02-11 | 2020-05-08 | 郭云美 | Novel anti-seismic damper for bridge safety and implementation method |
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| CN110159697B (en) | 2020-09-22 |
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