CN109707778A - A kind of drive-in gas-turbine installation nonlinear elasticity shock resistance limiter - Google Patents
A kind of drive-in gas-turbine installation nonlinear elasticity shock resistance limiter Download PDFInfo
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- CN109707778A CN109707778A CN201910164864.XA CN201910164864A CN109707778A CN 109707778 A CN109707778 A CN 109707778A CN 201910164864 A CN201910164864 A CN 201910164864A CN 109707778 A CN109707778 A CN 109707778A
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- 238000009434 installation Methods 0.000 title claims abstract description 36
- 230000035939 shock Effects 0.000 title claims abstract description 36
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 58
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 12
- 239000004677 Nylon Substances 0.000 claims description 10
- 229920001778 nylon Polymers 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
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- 239000007789 gas Substances 0.000 description 15
- 239000005060 rubber Substances 0.000 description 9
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- 230000000703 anti-shock Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 4
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- 238000005516 engineering process Methods 0.000 description 4
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Abstract
A kind of drive-in gas-turbine installation nonlinear elasticity shock resistance limiter, it is related to gas turbine field, mainly for solving, to cannot achieve gas-turbine installation in the prior art vertical, blast impulse limiting displacement under the water resistant of transverse direction and longitudinal direction, the problem of protecting elastic shaft and flexible connection, device in the present invention mainly includes that it includes limiter upper cover, horizontal upper part spacing collar, horizontal upper part linear elasticity sleeve, horizontal outer limiting bush, limit stretch-proof bushing, limiter pedestal, bottom steel plate, vertical anti-impact net, spacing shim, center bolt, disk spring, two Horizontal limiting bushings, present invention is mainly applied to naval vessel drive-in gas-turbine installation is vertical, blast impulse limiting displacement under horizontal and vertical water resistant, protect elastic shaft and flexible connection.
Description
Technical field
The present invention relates to gas turbine field, in particular to a kind of drive-in gas-turbine installation nonlinear elasticity shock resistance
Limiter.
Background technique
Requirement with naval vessel operation to gas turbine shock resistance is constantly promoted, and needs gas-turbine installation in far field
Under non-contact and near field contact explositions percussion, survival ability and operational efficiency are still able to maintain and restored rapidly.It is marked according to army
Regulation, the impact resistance grade of gas-turbine installation belong to A grades of equipment, and the performance of equipment should become before impingement without significant afterwards
Change, and does not cause other destructions.Will lead under Blast Shock sound structure touch rub, leaf destruction, combustion engine accessory structure it is disconnected
Split etc. therefore.With the transformation that naval strategy is escorted from offshore defensive type to offshore defensive, off-lying sea, the use of naval vessel combustion engine is increasingly
Frequently, working condition is more and more severe, and naval vessel combustion engine faces increasingly complex and the harsh special natural environment in sea and operation ring
The challenge in border.
Novel shielding system limiter requires gas-turbine installation not influence anti-vibration performance in normal operation
It is required that limitation impact displacement under the conditions of shock loading again, meets the requirement of shock response, protection drive-in gas turbine dress
Setting can still run well in the environment.Just-mid-term stage, gas turbine damper pass through body of rubber in impact process
Structure carries out vibration damping and absorbs initial shock loading energy, undertakes the main buffering of gas turbine shielding system deformation, with
The accumulation of impact energy, after initial small deformation range, limited using limiter gas-turbine installation impact displacement, protect
Connection structure is protected, vertical gas-turbine installation, acceleration responsive of transverse direction and longitudinal direction and dynamic respond are influenced；Therefore the novel limit
Position device rigidity under small amplitude condition is smaller to meet damping requirements；Its non-linear elastic element material property is elastic force covariant
Shape increases and non-linear increase is presented, and has biggish damping and energy dissipation behavior, does not influence initial stage stiffness characteristics are smaller
Anti-vibration performance, in shielding system deformation-later stage provides non-linear biggish elasticity-damping damping of shocks counter-force, limit
Maximum displacement.A variety of composite elastics and damping element rise step by step under the different impact energy load-up conditions of vertical, transverse direction and longitudinal direction
Effect, absorption loss impact energy.Vertical, transverse direction and longitudinal direction is required in design while playing position-limiting action, and structure is empty
Between be restricted, need to adjust the nonlinear stiffness and damping capacity of elastic impact element, with reach limitation gas turbine three-dimensional punching
Hit the index of response and impact displacement.The invention of gas-turbine installation nonlinear elasticity shock resistance limiter is carried out for this feature
Design.
Summary of the invention
The present invention in order to solve to cannot achieve in the prior art gas-turbine installation is vertical, under water resistant of transverse direction and longitudinal direction it is quick-fried
The problem of fried impact limiting displacement, protection elastic shaft and flexible connection, and then it is non-thread to provide a kind of drive-in gas-turbine installation
Property elastic reactance bound stopper.
A kind of drive-in gas-turbine installation nonlinear elasticity shock resistance limiter, it includes limiter upper cover, in level
Portion's spacing collar, horizontal upper part linear elasticity sleeve, horizontal outer limiting bush, limit stretch-proof bushing, limiter pedestal, bottom
Steel plate, vertical anti-impact net, spacing shim, center bolt, disk spring, connecting shaft and two Horizontal limiting bushings；
The limiter upper cover is drum type, is equipped with No.1 circular cylindrical projection on limiter at the center of lid top panel inner surface
It rises, is equipped with the No.1 threaded hole coaxial with No.1 cylindrical protrusions inside No.1 cylindrical protrusions, under the inner wall of limiter upper cover
Portion is equipped with a cylindrical cavity, and the bottom surface of cylindrical cavity and the opening face of limiter upper cover are horizontally disposed；
The limiter pedestal is cuboid, is equipped with No. two cylindrical protrusions at the upper surface center of limiter pedestal, two
The inside of number cylindrical protrusions is equipped with the cylindrical cavity coaxial with No. two cylindrical protrusions, and the inner wall of cylindrical cavity is equipped with
The bottom center of annular projection, cylindrical cavity is equipped with a No.1 through-hole；
Hexagonal blind hole is equipped at the lower surface center at the non-threaded end of center bolt；
The limit stretch-proof bushing is cylindrical structure, and is equipped with No. three circles in limit stretch-proof bushing upper surface
Column-shaped projection, limit stretch-proof bush inside are equipped with ladder hole；
Disk spring, spacing shim, vertical anti-impact net and bottom steel plate are successively set on cylindrical cavity from the bottom to top
In bottom interior wall, the non-threaded end of center bolt is arranged on the upper surface of bottom steel plate, and limit stretch-proof bushing covers at center
On the non-threaded end of screw rod, and limit stretch-proof bushing lower surface it is concordant with the lower surface at the non-threaded end of center bolt be arranged,
The upper surface for limiting stretch-proof bushing is arranged on annular projection along concordant, and horizontal upper part linear elasticity sleeve is arranged in ring-type
The cylindrical empty of raised top is intracavitary, and the inside of horizontal upper part linear elasticity sleeve, limiter is arranged in horizontal upper part spacing collar
Upper cover is arranged on limiter pedestal, and No.1 threaded hole and center bolt are threadedly coupled, and horizontal upper part spacing collar is covered one
On the outer wall of number cylindrical protrusions, horizontal outer limiting bush and two Horizontal limiting bushings settings cylinder sky in lid on the stopper
Between the inner sidewall of chamber and the outer wall of No. two cylindrical protrusions, horizontal outer limiting bush covers the outer wall in No. two cylindrical protrusions
On, two Horizontal limiting bushings are successively covered outside level from the bottom to top on limiting bush；
Preferably, described device further includes sealing plate, and groove, sealing plate installation is arranged in the lower surface of the limiter pedestal
In groove；
Preferably, the sealing plate is fixedly connected with groove for screw, and the upper surface of groove is circumferentially placed equidistant with multiple
No. two threaded holes, sealing plate upper surface are circumferentially placed equidistant with multiple counterbores, and the end of thread of each screw passes through a counterbore simultaneously
It is arranged in No. two threaded holes, and the end of thread of screw is threadedly coupled with No. two threaded holes；
Preferably, the number of the screw is 4-6, and the number of No. two threaded holes is 4-6, and the number of counterbore is 4-6
It is a；
Preferably, described device further includes increasing pedestal, increases pedestal equipped with multiple bottom mounting apertures, increases pedestal peace
Mounted in the lower surface of limiter pedestal；
Preferably, described to increase pedestal and be fixedly connected with limiter pedestal for bolt, the four corners for increasing pedestal are set respectively
An internal connecting screw hole is set, No. four threaded holes, the end of thread of bolt is respectively set in limiter base lower surface four corners
By internal connecting screw hole be arranged in No. four threaded holes, and the end of thread of bolt respectively with internal connecting screw hole and No. four screw threads
Hole is threadedly coupled；
Preferably, cap upper surface is circumferentially placed equidistant with multiple top installation screws on the limiter；
Preferably, the number of the top installation screw is 4-6；
Preferably, the material of the outer limiting bush of the level and horizontal upper part spacing collar is nylon；
Preferably, the vertical anti-impact net and Horizontal limiting bushing material are wire.
The present invention has the advantages that with the prior art
1. the present invention compared with the existing technology provided in device increase cylindrical structure limiter three-dimensional it is different
Shock stiffness and gap are to meet vertical, lateral, the longitudinal impact displacement position-limiting index of gas turbine.The anti-impact of limiter inner cavity
Hitting elastomeric element has multi-level composite elastic and damping characteristic step by step, in the premise that product design space and configuration have determined
Under, it is enhanced in outer-cavity structure to horizontal and vertical shock stiffness in product cylindrical type, space utilization rate is high.To meet its punching
Nonlinear stiffness characteristic is hit, it is different just that confrontation impact elasticity element assembly devises rubber, nylon, steel wire, disk spring etc.
The modularization of degree is replaced.Nonlinear shock stiffness characteristic ensure that limiter does not influence it in the vibration of unit thin tail sheep
Anti-vibration performance, and realize and limit unit generation larger displacement under impact condition, protect the connection structure of drive-in gas turbine.
2. the present invention compared with the existing technology provided in device increase sealing plate, can preferably play sealing make
With preventing sundries and liquid from entering inside device, influence the impact resistance of device.
3. the present invention compared with the existing technology provided in device increase and increase pedestal, the whole of the present apparatus can be increased
Body height is more suitable for different ships and uses, because the hull face plate of foundation of different hulls is different, leads to hull bracket
Height it is also different, increase and increase pedestal and will not influence the practical performance of the present apparatus, while can also can preferably improve
The versatility of the present apparatus.
4. the present invention compared with the existing technology provided in device in connection type mostly use threaded connection, convenient for tearing open
It unloads and installs, more convenient replacement damaged element is not in because some element damages in welding or other integrated designs
Bad the case where causing whole device all to fail, production and maintenance cost have been saved well, subtract production and maintenance cost at least
Lack 40%.
Detailed description of the invention
Fig. 1 is cross-sectional view of the invention；
Fig. 2 is top view of the invention；
Fig. 3 is to increase pedestal bottom view in the present invention；
Fig. 4 is the partial sectional view for increasing pedestal in the present invention；
Fig. 5 is the cross-sectional view of limiter pedestal in the present invention；
Fig. 6 is the cross-sectional view of limiter upper cover in the present invention；
Fig. 7 is the cross-sectional view of middle screw rod in the present invention；
In figure, 1 limiter upper cover, 1-1 No.1 cylindrical protrusions, 1-2 No.1 threaded hole, 2 horizontal upper part spacing collars, 3
Horizontal upper part limits resilient sleeve, 4 horizontal outer limiting bushs, 5 Horizontal limiting bushings, 6 limiter stretch-proof bushings, 7 limiters
Pedestal, No. bis- cylindrical protrusions of 7-1,7-2 cylindrical cavity, 7-3 annular projection, 7-4 groove, 7-2-1 No.1 through-hole, 7-4-1
No. two threaded holes, 8 to increase pedestal, 9 bottom steel plates, 10 vertical anti-impact nets, 11 spacing shims, 12 center bolts, 12-1 hexagonal blind
Hole, 13 sealing plates, 13-1 counterbore, 14 disk springs, 15 screws, 16 top mounting holes, 17 bottom mounting apertures and 18 inside connections
Screw hole.
Specific embodiment
Specific embodiment 1: illustrating present embodiment in conjunction with Fig. 1, Fig. 5, Fig. 6 and Fig. 7, described in present embodiment
Device it include limiter upper cover 1, horizontal upper part spacing collar 2, horizontal upper part linear elasticity sleeve 3, horizontal outer limiting bush
4, stretch-proof bushing 6, limiter pedestal 7, bottom steel plate 9, vertical anti-impact net 10, spacing shim 11, center bolt 12, dish are limited
Type spring 14, connecting shaft 19 and two Horizontal limiting bushings 5；
The limiter upper cover 1 is drum type, is equipped with No.1 circular cylindrical projection at the center of 1 top plate inner surface of limiter upper cover
1-1 is played, is equipped with the No.1 threaded hole 1-2 coaxial with No.1 cylindrical protrusions 1-1, limiter inside No.1 cylindrical protrusions 1-1
The inner wall lower of upper cover 1 is equipped with cylindrical cavity, and the bottom surface of cylindrical cavity and the opening face of limiter upper cover 1 are horizontally disposed；
The limiter pedestal 7 is cuboid, is equipped with No. two cylindrical protrusions 7- at the upper surface center of limiter pedestal 7
The inside of 1, No. two cylindrical protrusions 7-1 are equipped with the cylindrical cavity 7-2 coaxial with No. two cylindrical protrusions 7-1, cylindrical empty
The inner wall of chamber 7-2 is equipped with annular projection 7-3, and the bottom center of cylindrical cavity 7-2 is equipped with a No.1 through-hole 7-2-1；
Hexagonal blind hole 12-1 is equipped at the lower surface center at the non-threaded end of the center bolt 12；
The limit stretch-proof bushing 6 is cylindrical structure, and is equipped with one No. three in limit 6 upper surface of stretch-proof bushing
Cylindrical protrusions limit and are equipped with ladder hole inside stretch-proof bushing 6；
Disk spring 14, spacing shim 11, vertical anti-impact net 10 and bottom steel plate 9 are successively set on cylinder from the bottom to top
In the bottom interior wall of cavity 7-2, the non-threaded end of center bolt 12 is arranged on the upper surface of bottom steel plate 9, limits stretch-proof
6 sets of bushing on the non-threaded end of center bolt 12, and limit stretch-proof bushing 6 lower surface and the non-threaded end of center bolt 12
Lower surface be concordantly arranged, limit stretch-proof bushing 6 upper surface on annular projection 7-3 along it is concordant be arranged, horizontal upper part
Linear elasticity sleeve 3 is arranged in the cylindrical cavity 7-2 above annular projection 7-3, and level is arranged in horizontal upper part spacing collar 2
The inside of upper linear resilient sleeve 3, limiter upper cover 1 is arranged on limiter pedestal 7, and No.1 threaded hole 1-2 and center
Screw rod 12 is threadedly coupled, 2 sets of horizontal upper part spacing collar on the outer wall of No.1 cylindrical protrusions 1-1, horizontal outer limiting bush 4
It is outer with the inner sidewall of cylindrical cavity in the setting of two Horizontal limiting bushings 5 on the stopper lid 1 and No. two cylindrical protrusions 7-1
Between wall, horizontal outer 4 sets of limiting bush on the outer wall of No. two cylindrical protrusions 7-1, two Horizontal limiting bushings 5 are successively under
Supreme set is outside level on limiting bush 4.
The present invention is directed to the nonlinear elasticity shock resistance limiter of drive-in gas-turbine installation shock resistance design, for reality
Under the premise of now ensuring unit vibration isolation requirement, while balanced unit three-dimensional shock response and impact displacement are to reach the design of its system
Index.In terms of the design of limiter structure and component capabilities, the decrement and mounting height of quota damper are realized to a certain degree
On modularization and adjustable controllability, the present invention with the direction at the upper surface center perpendicular to limiter upper cover 1 be it is vertical, with hang down
Directly in the direction of 1 side wall of limiter upper cover to be lateral, to be vertical perpendicular to 1 side wall of limiter upper cover and perpendicular to lateral direction
To.
Design cylindrical structure limiter three-dimensional difference shock stiffness and gap with meet gas turbine it is vertical, it is lateral,
Longitudinal impact displacement position-limiting index.The shock resistance elastomeric element of limiter inner cavity has multi-level composite elastic step by step and damping
Characteristic enhances in outer-cavity structure to transverse direction in product cylindrical type under the premise of product design space and configuration have determined
With longitudinal shock stiffness, space utilization rate height.Nonlinear stiffness characteristic is impacted to meet it, fights impact elasticity element assembly
Devise the modularization replacement of the different-stiffness such as rubber, nylon, steel wire, disk spring.Nonlinear shock stiffness characteristic, i.e.,
It ensure that limiter does not influence its anti-vibration performance in the vibration of unit thin tail sheep, and realize and limit unit generation under impact condition
Larger displacement protects the connection structure of drive-in gas turbine.
Vertical Nonlinear Anti-shock structural detail mainly include limiter stretch-proof bushing, vertical anti-impact net, spacing shim and
Disk spring, the blastic deformation initial stage, rigidity value is smaller, does not influence the vertical anti-vibration performance of unit；It is larger in blastic deformation
When, vertical Nonlinear Anti-shock structural detail has biggish damping buffering ability.In limiter stretch-proof bushing rubber material
Impact damping damped coefficient is about 0.12, and for stepped rubber (nylon) annulus set, the vertical stretching displacement stage is become by squeezing
Shape generates enough stretch-proof counter-forces, so that the vertical stretching displacement of gas turbine shielding system is limited and is met acceleration responsive and wants
It asks.Rigidity value >=5000N/mm in vertical its 2-4mm deformed region of anti-impact metallic steel silk screen.In the vertical compression displacement stage, lead to
The elastic elements such as vertical anti-impact metallic steel silk screen, the disk spring placed in limiter base intracavity are crossed, gas turbine is isolated
The vertical compression displacement of system is limited and meets acceleration responsive requirement.
Horizontal and vertical Nonlinear Anti-shock structural detail mainly includes horizontal upper part spacing collar, Horizontal limiting bushing, water
The structures such as flat outer limiting bush, horizontal upper part limit resilient sleeve, limiter stretch-proof bushing, play gas-turbine installation level
Direction impact work energy.Make the horizontal direction antinoise structure element of limited bulk (internal/external ring type structure) with impact process, inner and outer ring
Rubber, steel wire, nylon material gradually non-linear generation flexible deformation.Metal steel wire bushing etc. has big rigidity, loss because
Son reaches 0.2 or more.By adjusting effective density, heat treatment, winding node and speed adjust, become after controlling finished product punch forming
The creep that shape and single-impact generate is permanently deformed all < 0.5mm, in its 3-4mm deformed region of Horizontal limiting metal steel wire bushing
Static pressure rigidity value >=45kN/mm, horizontal upper part limit static pressure rigidity value >=15kN/mm in its 3-4mm deformed region of resilient sleeve.
So that limiter is had non-linear piecewise elasticity-damping characteristic, make gas turbine shielding system transverse and longitudinal impact displacement limited and
Meet acceleration responsive requirement.
Specific embodiment 2: illustrating present embodiment in conjunction with Fig. 1 and Fig. 5, device described in present embodiment further includes
Groove 7-4 is arranged in the lower surface of sealing plate 13, the limiter pedestal 7, and sealing plate 13 is mounted in groove 7-4.Other are not public
It is same as the specific embodiment one to open connection type.
So set, sealing function can be played preferably, prevents sundries and liquid from entering inside device, influence device
Impact resistance.
Specific embodiment 3: embodiment is described with reference to Fig. 1, sealing plate 13 described in present embodiment and groove 7-
4 are fixedly connected for screw, and the upper surface of groove 7-4 is circumferentially placed equidistant with multiple No. two threaded hole 7-4-1, table on sealing plate 13
Face is circumferentially placed equidistant with multiple counterbore 13-1, and the end of thread of each screw 15 passes through a counterbore 13-1 and is arranged at one two
In number threaded hole 7-4-1, and the end of thread of screw 15 is threadedly coupled with No. two threaded hole 7-4-1.Other undisclosed connection types
It is identical with embodiment two.
So set, sealing plate preferably can be replaced and be dismantled, relative to other mounting means, threaded connection is most
To be easy and cheap, realizing preferable leakproofness simultaneously, preferably embodying interchangeability and economy.
Specific embodiment 4: embodiment is described with reference to Fig. 1, the number that screw 15 is stated in present embodiment is 4-6
A, the number of No. two threaded hole 7-4-1 is 4-6, and the number of counterbore 13-1 is 4-6.Other undisclosed connection types and tool
Body embodiment three is identical.
So set, since connection screw thread hole is circumferentially equidistant distribution, setting 4-6 can play well it is fixed and
Connection function, since the processing request of device entirety is higher, processed more threaded hole is increasingly complex, and increases processing cost
And difficulty of processing.
Specific embodiment 5: illustrating present embodiment in conjunction with Fig. 1, Fig. 3 and Fig. 4, device described in present embodiment is also
Including increasing pedestal 8, increase and set multiple bottom mounting apertures 17 on pedestal 8, increases the following table that pedestal 8 is mounted on limiter pedestal 7
Face.Other undisclosed connection types are the same as one or two specific embodiments.
Increase pedestal 8 and limit described in present embodiment specific embodiment 6: embodiment is described with reference to Fig.5,
Device pedestal 7 is fixedly connected for bolt, and an internal connecting screw hole 18, limiter pedestal 7 is respectively set in the four corners for increasing pedestal 8
No. four threaded holes are respectively set in lower surface four corners, and the end of thread of bolt is arranged by internal connecting screw hole 18 in No. four spiral shells
In pit, and the end of thread of bolt is threadedly coupled with internal connecting screw hole 18 and No. four threaded holes respectively.Other are not publicly connected
Mode is identical as specific embodiment five.
So set, the whole height of the present apparatus can be increased, it is more suitable for different ships and uses, because different
The hull face plate of foundation of hull is different, causes the height of hull bracket also different, increases and increases pedestal and will not influence the present apparatus
Practical performance, while can also can preferably improve the versatility of the present apparatus.
Specific embodiment 7: embodiment is described with reference to Fig. 2, table on limiter upper cover described in present embodiment 1
Face is circumferentially placed equidistant with multiple top installation screws 16.Other undisclosed connection types are same as the specific embodiment one.
So set, in order to connect the present apparatus preferably with hull bracket, it is easy to disassemble, it avoids after welding due to device
Internal element receives destruction, and can not replace causes whole device to fail, to increase maintenance cost.
Specific embodiment 8: embodiment is described with reference to Fig. 2, top installation screw 16 described in present embodiment
Number is 4-6.Other undisclosed connection types are identical as specific embodiment seven.
So set, since connection screw thread hole is circumferentially equidistant distribution, setting 4-6 can play well it is fixed and
Connection function, since the processing request of device entirety is higher, processed more threaded hole is increasingly complex, and increases processing cost
And difficulty of processing.
Specific embodiment 9: embodiment is described with reference to Fig. 1, the outer limiting bush 4 of level described in present embodiment
Material with horizontal upper part spacing collar 2 is nylon.Other undisclosed connection types are same as the specific embodiment one.
So set, nylon has preferable plasticity, good buffering effect can be played when encountering impact, resisted
While impact can also protective device itself well, and price is lower, there is certain economy.
Specific embodiment 10: embodiment is described with reference to Fig. 1, vertical anti-impact net 10 and water described in present embodiment
Flat 5 material of limiting bush is wire.Other undisclosed connection types are same as the specific embodiment one.
So set, wire can slow down vertical impact compressive load very well, it is right since vertical impact power is more concentrated
It is bigger in the cushion space of device and time requirement, therefore select wire as the main material for slowing down vertical impact forces,
It is exactly that its deformation quantity can be greater than the materials such as nylon and rubber, is more suitable the condition vertically buffered.
Working principle
Limiter upper cover metal plate is drum type structure, and upper cylindrical cavity arranges a cylindrical thread hole post, passes through connection
The center bolt top of inner cavity is connect with limiter upper cover, and lower part is connect with limiter pedestal, vertical by screw rod transmitting impact
Shock loading.Center bolt lower disposed has the limiter stretch-proof bushing for absorbing vertical bounce energy, and center bolt lower part is
Limiter base intracavity lower disposed has vertical anti-impact net, the disk spring for bearing vertical impact compressive load, spacing shim.It is logical
The thickness of design adjustment elastic element is crossed to control the initial displacement to work under the effect of limiter vertical impact.
Horizontal upper part spacing collar, Horizontal limiting bushing are arranged in the cylindrical cavity top of limiter base metal plate；Pedestal
The horizontal outer limiting bush of cylindrical type exocoel arrangement between upper cover, horizontal upper part limit resilient sleeve.Its main function is
The horizontal direction for limiting limiter pedestal and limiter upper cover impacts relative displacement.Pass through the radial direction between design adjustment elastic element
Gap controls the initial displacement to work under limiter transverse and longitudinal percussion.
The contact area of center bolt and upper cover, pedestal and elastic element should be done sufficiently large, to increase the cross of limiter
Impact of collision rigidity, limitation impact displacement.Center bolt and upper cover, pedestal and stretch-proof bushing, horizontal upper part spacing collar, water
Flat limiting bush, horizontal outer limiting bush, horizontal upper part limit resilient sleeve, vertical anti-impact net, disk spring, spacing shim phase
Contact, with the increase of impact displacement, the elastic elements sublevel such as rubber, steel wire, nylon, disk spring is gradually acted on.It realizes
The Nonlinear Anti-shock architectural characteristic of limiter product itself composite elastic and damping element.It is responded and is limited according to impact acceleration
Requirement, adjust separately the value volume and range of product of elastic element to realize different shock stiffnesses.
Just-mid-term stage in impact process, gas turbine damper carry out vibration damping by body of rubber structure and absorb
Initial shock loading energy undertakes the main buffering of gas turbine shielding system deformation, with the accumulation of impact energy,
After initial small deformation range, gas-turbine installation impact displacement is limited using limiter, connection structure is protected, influences combustion gas
Turbine installation is vertical, transverse direction and longitudinal direction acceleration responsive and dynamic respond；Limiter passes through vertical and horizontal, longitudinal non-linear
Segmentation elasticity-damping characteristic antinoise structure element, including horizontal upper part spacing collar, Horizontal limiting bushing, horizontal outer limit
The structures such as position bushing, horizontal upper part limit resilient sleeve, limiter stretch-proof bushing, vertical anti-impact net, disk spring, it is non-thread
Property elastic element material property to be elastic force increase with deformation and non-linear increase be presented, have biggish damping and energy consumption special
Property, do not influence anti-vibration performance initial stage stiffness characteristics are smaller, in shielding system deformation-later stage provide it is non-linear compared with
Big elasticity-damping damping of shocks counter-force limits maximum displacement.
Claims (10)
1. a kind of drive-in gas-turbine installation nonlinear elasticity shock resistance limiter, it is characterised in that: it includes on limiter
Cover (1), horizontal upper part spacing collar (2), horizontal upper part linear elasticity sleeve (3), horizontal outer limiting bush (4), limit tension
Stretch bushing (6), limiter pedestal (7), bottom steel plate (9), vertical anti-impact net (10), spacing shim (11), center bolt (12),
Disk spring (14) and two Horizontal limiting bushings (5)；
The limiter upper cover (1) is drum type, is equipped with No.1 circular cylindrical projection at the center of limiter upper cover (1) top plate inner surface
It rises (1-1), the No.1 threaded hole (1- coaxial with No.1 cylindrical protrusions (1-1) is equipped with inside No.1 cylindrical protrusions (1-1)
2), the inner wall lower of limiter upper cover (1) is equipped with a cylindrical cavity, the bottom surface of cylindrical cavity and opening for limiter upper cover (1)
Mouth face is horizontally disposed；
The limiter pedestal (7) is cuboid, is equipped with No. two cylindrical protrusions at the upper surface center of limiter pedestal (7)
The inside of (7-1), No. two cylindrical protrusions (7-1) are equipped with the cylindrical cavity (7- coaxial with No. two cylindrical protrusions (7-1)
2), the inner wall of cylindrical cavity (7-2) is equipped with annular projection (7-3), and the bottom center of cylindrical cavity (7-2) is equipped with one
A No.1 through-hole (7-2-1)；
Hexagonal blind hole (12-1) is equipped at the lower surface center at the non-threaded end of the center bolt (12)；
The limit stretch-proof bushing (6) is cylindrical structure, and is equipped with one No. three in limit stretch-proof bushing (6) upper surface
Cylindrical protrusions, limit stretch-proof bushing (6) is internal to be equipped with ladder hole；
Disk spring (14), spacing shim (11), vertical anti-impact net (10) and bottom steel plate (9) are successively set on circle from the bottom to top
In the bottom interior wall of cylindrical cavity (7-2), the non-threaded end of center bolt (12) is arranged on the upper surface of bottom steel plate (9),
Limit stretch-proof bushing (6) covers on the non-threaded end of center bolt (12), and limits the lower surface of stretch-proof bushing (6) in
The lower surface at heart screw rod (12) non-threaded end is concordantly arranged, and limits upper surface and annular projection (7-3) of stretch-proof bushing (6)
On along concordant setting, the cylindrical cavity (7-2) that horizontal upper part linear elasticity sleeve (3) is arranged above annular projection (7-3)
Interior, horizontal upper part spacing collar (2) setting exists in the inside of horizontal upper part linear elasticity sleeve (3), limiter upper cover (1) setting
On limiter pedestal (7), and No.1 threaded hole (1-2) and center bolt (12) are threadedly coupled, horizontal upper part spacing collar (2) set
On the outer wall of No.1 cylindrical protrusions (1-1), horizontal outer limiting bush (4) and two Horizontal limiting bushing (5) settings are being limited
In position device upper cover (1) between cylindrical cavity inner sidewall and the outer wall of No. two cylindrical protrusions (7-1), horizontal outer limiting bush (4)
It covers on the outer wall of No. two cylindrical protrusions (7-1), two Horizontal limiting bushings (5) successively cover from the bottom to top and limit outside level
On bushing (4).
2. a kind of drive-in gas-turbine installation nonlinear elasticity shock resistance limiter according to claim 1, special
Sign is: described device further includes sealing plate (13), and groove (7-4) is arranged in the lower surface of the limiter pedestal (7), sealing plate
(13) it is mounted in groove (7-4).
3. a kind of drive-in gas-turbine installation nonlinear elasticity shock resistance limiter according to claim 2, special
Sign is: the sealing plate (13) is fixedly connected with groove (7-4) for screw, and the upper surface of groove (7-4) is circumferentially equidistantly set
Multiple No. two threaded holes (7-4-1) are set, sealing plate (13) upper surface is circumferentially placed equidistant with multiple counterbores (13-1), each screw
(15) the end of thread passes through a counterbore (13-1) and is arranged in No. two threaded holes (7-4-1), and the spiral shell of screw (15)
Line end is threadedly coupled with No. two threaded holes (7-4-1).
4. a kind of drive-in gas-turbine installation nonlinear elasticity shock resistance limiter according to claim 3, special
Sign is: the number of the screw (15) is 4-6, and the number of No. two threaded holes (7-4-1) is 4-6, counterbore (13-1)
Number is 4-6.
5. according to claim 1 or a kind of drive-in gas-turbine installation nonlinear elasticity shock resistance limiter described in 2,
Be characterized in that: described device further includes increasing pedestal (8), increases pedestal (8) equipped with multiple bottom mounting apertures (17), increases bottom
Seat (8) is mounted on the lower surface of limiter pedestal (7).
6. a kind of drive-in gas-turbine installation nonlinear elasticity shock resistance limiter according to claim 5, special
Sign is: described to increase pedestal (8) and be fixedly connected with limiter pedestal (7) for bolt, the four corners for increasing pedestal (8) are set respectively
An internal connecting screw hole (18) is set, No. four threaded holes are respectively set in limiter pedestal (7) lower surface four corners, bolt
The end of thread passes through internal connecting screw hole (18) and is arranged in No. four threaded holes, and the end of thread of bolt connect spiral shell with inside respectively
Hole (18) and No. four threaded holes are threadedly coupled.
7. a kind of drive-in gas-turbine installation nonlinear elasticity shock resistance limiter according to claim 1, special
Sign is: limiter upper cover (1) upper surface is circumferentially placed equidistant with multiple top installation screws (16).
8. a kind of drive-in gas-turbine installation nonlinear elasticity shock resistance limiter according to claim 7, special
Sign is: the number of the top installation screw (16) is 4-6.
9. a kind of drive-in gas-turbine installation nonlinear elasticity shock resistance limiter according to claim 1, special
Sign is: the material of the outer limiting bush of level (4) and horizontal upper part spacing collar (2) is nylon.
10. a kind of drive-in gas-turbine installation nonlinear elasticity shock resistance limiter according to claim 1, special
Sign is: the vertical anti-impact net (10) and Horizontal limiting bushing (5) material are wire.
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| CN201910164864.XA CN109707778B (en) | 2019-03-05 | 2019-03-05 | Nonlinear elastic impact-resistant limiter of propulsion type gas turbine device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910164864.XA CN109707778B (en) | 2019-03-05 | 2019-03-05 | Nonlinear elastic impact-resistant limiter of propulsion type gas turbine device |
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| CN109707778B CN109707778B (en) | 2024-04-09 |
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Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09296844A (en) * | 1996-03-08 | 1997-11-18 | Komatsu Ltd | Liquid sealed type mount |
| JP2004183676A (en) * | 2002-11-29 | 2004-07-02 | Toyo Tire & Rubber Co Ltd | Vibration damper |
| JP2005016633A (en) * | 2003-06-26 | 2005-01-20 | Japan Atom Power Co Ltd:The | Three-dimensional base isolation device |
| JP2005030600A (en) * | 2002-11-12 | 2005-02-03 | Toyo Tire & Rubber Co Ltd | Vibration damping device |
| JP2005188667A (en) * | 2003-12-26 | 2005-07-14 | Bridgestone Corp | Vibration control device |
| JP2006046351A (en) * | 2003-02-10 | 2006-02-16 | Toyo Tire & Rubber Co Ltd | Vibration isolator |
| JP2012057780A (en) * | 2010-09-13 | 2012-03-22 | Bridgestone Corp | Vibration control device |
| US20120267506A1 (en) * | 2011-04-25 | 2012-10-25 | Honeywell International Inc. | Three parameter, multi-axis isolators, isolation systems employing the same, and methods for producing the same |
| CN103267078A (en) * | 2013-06-06 | 2013-08-28 | 南京捷诺环境技术有限公司 | Composite spring damping adjustable vibration isolator |
| CN103697241A (en) * | 2013-12-11 | 2014-04-02 | 上海交通大学 | Metal rubber-disc spring full metal composite hanging bracket for vibration isolation and impact resistance of pipeline |
| CN103711990A (en) * | 2013-12-11 | 2014-04-09 | 上海交通大学 | Metal rubber-disc spring all-metal three-way composite support for piping vibration isolation and impact resistance |
| CN203625728U (en) * | 2013-11-15 | 2014-06-04 | 青岛科而泰环境控制技术有限公司 | Anti-deflection elastic fastener |
| CN104265819A (en) * | 2014-08-18 | 2015-01-07 | 常州市恒信环境技术有限公司 | Linear anti-vibration and nonlinear strong-impact-resistant type isolator |
| CN104976264A (en) * | 2015-07-08 | 2015-10-14 | 中国船舶重工集团公司第七一九研究所 | Three-way space limiter |
| CN105889386A (en) * | 2014-11-28 | 2016-08-24 | 中国人民解放军63966部队 | Dry-friction type three-way strong-impact-resistant isolation buffer |
| CN106369096A (en) * | 2016-10-17 | 2017-02-01 | 南京大德减震科技有限公司 | Counter pressure type disc spring damper with adjustable initial rigidity |
| US20170241862A1 (en) * | 2016-02-19 | 2017-08-24 | The Boeing Company | Miniaturized tuned mass damper for application to high speed wind tunnel testing |
| CN108468737A (en) * | 2018-02-08 | 2018-08-31 | 中国船舶重工集团公司第七0三研究所 | A kind of gas-turbine installation composite elastic and damping shock resistance damper |
| CN209539891U (en) * | 2019-03-05 | 2019-10-25 | 中国船舶重工集团公司第七0三研究所 | A kind of drive-in gas-turbine installation nonlinear elasticity shock resistance limiter |
-
2019
- 2019-03-05 CN CN201910164864.XA patent/CN109707778B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09296844A (en) * | 1996-03-08 | 1997-11-18 | Komatsu Ltd | Liquid sealed type mount |
| JP2005030600A (en) * | 2002-11-12 | 2005-02-03 | Toyo Tire & Rubber Co Ltd | Vibration damping device |
| JP2004183676A (en) * | 2002-11-29 | 2004-07-02 | Toyo Tire & Rubber Co Ltd | Vibration damper |
| JP2006046351A (en) * | 2003-02-10 | 2006-02-16 | Toyo Tire & Rubber Co Ltd | Vibration isolator |
| JP2005016633A (en) * | 2003-06-26 | 2005-01-20 | Japan Atom Power Co Ltd:The | Three-dimensional base isolation device |
| JP2005188667A (en) * | 2003-12-26 | 2005-07-14 | Bridgestone Corp | Vibration control device |
| JP2012057780A (en) * | 2010-09-13 | 2012-03-22 | Bridgestone Corp | Vibration control device |
| US20120267506A1 (en) * | 2011-04-25 | 2012-10-25 | Honeywell International Inc. | Three parameter, multi-axis isolators, isolation systems employing the same, and methods for producing the same |
| CN103267078A (en) * | 2013-06-06 | 2013-08-28 | 南京捷诺环境技术有限公司 | Composite spring damping adjustable vibration isolator |
| CN203625728U (en) * | 2013-11-15 | 2014-06-04 | 青岛科而泰环境控制技术有限公司 | Anti-deflection elastic fastener |
| CN103697241A (en) * | 2013-12-11 | 2014-04-02 | 上海交通大学 | Metal rubber-disc spring full metal composite hanging bracket for vibration isolation and impact resistance of pipeline |
| CN103711990A (en) * | 2013-12-11 | 2014-04-09 | 上海交通大学 | Metal rubber-disc spring all-metal three-way composite support for piping vibration isolation and impact resistance |
| CN104265819A (en) * | 2014-08-18 | 2015-01-07 | 常州市恒信环境技术有限公司 | Linear anti-vibration and nonlinear strong-impact-resistant type isolator |
| CN105889386A (en) * | 2014-11-28 | 2016-08-24 | 中国人民解放军63966部队 | Dry-friction type three-way strong-impact-resistant isolation buffer |
| CN104976264A (en) * | 2015-07-08 | 2015-10-14 | 中国船舶重工集团公司第七一九研究所 | Three-way space limiter |
| US20170241862A1 (en) * | 2016-02-19 | 2017-08-24 | The Boeing Company | Miniaturized tuned mass damper for application to high speed wind tunnel testing |
| CN106369096A (en) * | 2016-10-17 | 2017-02-01 | 南京大德减震科技有限公司 | Counter pressure type disc spring damper with adjustable initial rigidity |
| CN108468737A (en) * | 2018-02-08 | 2018-08-31 | 中国船舶重工集团公司第七0三研究所 | A kind of gas-turbine installation composite elastic and damping shock resistance damper |
| CN209539891U (en) * | 2019-03-05 | 2019-10-25 | 中国船舶重工集团公司第七0三研究所 | A kind of drive-in gas-turbine installation nonlinear elasticity shock resistance limiter |
Non-Patent Citations (3)
| Title |
|---|
| 张伟, 胡昌华, 周涛, 夏启兵: "导弹故障诊断***减振器设计", 导弹与航天运载技术, no. 01 * |
| 汪玉, 胡刚义, 华宏星, 沈荣瀛, 陈国钧: "带限位器的船舶设备非线性冲击响应分析", 中国造船, no. 02 * |
| 熊世树;李会胜;黄丽婷;唐建设;: "***试验室基础隔振***设计与应用", ***与冲击, no. 02 * |
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