CN110206763A - A kind of stand-type pump group of bunker oil answers button-type vibration isolation gasket ring - Google Patents
A kind of stand-type pump group of bunker oil answers button-type vibration isolation gasket ring Download PDFInfo
- Publication number
- CN110206763A CN110206763A CN201910344225.1A CN201910344225A CN110206763A CN 110206763 A CN110206763 A CN 110206763A CN 201910344225 A CN201910344225 A CN 201910344225A CN 110206763 A CN110206763 A CN 110206763A
- Authority
- CN
- China
- Prior art keywords
- ring
- force bearing
- pressure
- groove
- pump group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002955 isolation Methods 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 34
- 239000002828 fuel tank Substances 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims description 34
- 229910045601 alloy Inorganic materials 0.000 claims description 19
- 239000000956 alloy Substances 0.000 claims description 19
- 238000013016 damping Methods 0.000 claims description 16
- 230000007704 transition Effects 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910001141 Ductile iron Inorganic materials 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 239000010962 carbon steel Substances 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 239000000806 elastomer Substances 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 claims description 4
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 241000826860 Trapezium Species 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 230000000694 effects Effects 0.000 description 8
- 239000003921 oil Substances 0.000 description 8
- 238000010008 shearing Methods 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000010358 mechanical oscillation Effects 0.000 description 2
- 230000000116 mitigating effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 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 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/10—Metals, alloys or intermetallic compounds
- F05D2300/11—Iron
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/10—Metals, alloys or intermetallic compounds
- F05D2300/11—Iron
- F05D2300/111—Cast iron
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/10—Metals, alloys or intermetallic compounds
- F05D2300/17—Alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/10—Metals, alloys or intermetallic compounds
- F05D2300/17—Alloys
- F05D2300/171—Steel alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/10—Metals, alloys or intermetallic compounds
- F05D2300/17—Alloys
- F05D2300/172—Copper alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/10—Metals, alloys or intermetallic compounds
- F05D2300/17—Alloys
- F05D2300/173—Aluminium alloys, e.g. AlCuMgPb
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/40—Organic materials
- F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Button-type vibration isolation gasket ring, the present invention and pump group are answered the invention discloses a kind of stand-type pump group of bunker oil and fuel tank connects into organic whole.Each ring is mutually nested with trapezoidal groove with trapezoidal convex shoulder, and vertical vibration power is dispersed a part to horizontal direction and is transformed into thermal energy；Have between the horizontal end face of each ring and block cavity and gap, vertical vibration power cannot directly vertical transmitting so that vibration is effectively decayed furthermore the material difference of adjacent ring can produce Additional vertical and horizontal shear and consume vibrational energy.The present invention, which had not only alleviated the vibration of pump group itself but also preferably mitigated environment and other equipment vibration, influences the vibration of present invention carrying pump group.The present invention can reduce 10~13 decibels of vibrating noise or more, using and automobile-used in addition to for other than ship, can also be applied to land, achieving good economic results in society.
Description
Technical field
The present invention relates to a kind of stand-type pump groups of bunker oil to answer button-type vibration isolation gasket ring, in particular to a kind of with watertight and simultaneous
There is the stand-type pump group of the bunker oil of fire-proof function to answer button-type vibration isolation gasket ring, belongs to vibration reduction of ship technical field.
Background technique
Marine hydraulic power unit is that ship executes mission task, and personnel's normal life, work are provided and conveyed continually
Each pressure fluid, for example host, pay machine supply lubricating oil；Control system for primary and secondary machine provides hydraulic oil；For roll adjustment spiral
Paddle provides hydraulic oil；Pressure fluid and lubricating oil are provided for deck machinery such as steering engine, windlass, crane etc.；... etc..But
It is, since marine hydraulic power unit pump group is the dynamafluidal movable machinery of conveying, there are biggish mechanical oscillation and noise, these
Mechanical oscillation and noise will cause workplace and mechanical place bad environments, not only cause to petrol station and pump group itself affect and
Other equipment can also be adversely affected and be damaged by damage, are still caused body and mind to damage crewman simultaneously, be will cause when serious
Ship cannot normally complete mission task, also be particularly disadvantageous for the stealthy of military ships, to seriously restrict the operation energy of combat vessel
Power.
In consideration of it, vibration reduction of ship technical field mainly reduces the vibration of marine hydraulic power unit in terms of following four at present
And noise, first is that improving the structure design of petrol station pump group (mainly pump and prime mover) and fuel tank；Second is that improving hydraulic power unit pump
The accuracy of manufacture of group；Third is that installing independent damper additional between marine hydraulic power unit pump group and fuel tank mounting seat；Fourth is that installing rubber additional
Glue damping sealing ring pads.But the first and second two methods cannot prevent the influence of environment and other vibration equipments to pump group, and
It is higher (this is also one of the Main way that current vibration and noise reducing is made great efforts) to design and manufacture cost；When the third method is with using
Between lengthening, damper can gradually decrease vibration damping efficiency, while this method is not suitable for the petrol station peculiar to vessel for having watertight requirement yet
Pump group；Fourth method is not suitable for the place for having fire protection requirement.
For above situation, it is simultaneously while also simultaneous come the vibrating noise for reducing pump group to need to design a kind of novel isolation mounting
Care for watertight and the fire protection requirement for meeting petrol station.
Summary of the invention
It is an object of the invention to provide one kind for petrol station pump group to can reduce 10~13 decibels of vibrating noise or more, have
The stand-type pump group of the bunker oil of watertight and fire-proof function answers button-type vibration isolation gasket ring.
The invention provides the following technical scheme: a kind of stand-type pump group of bunker oil answers button-type vibration isolation gasket ring, it is mounted on oil
Between the top plate of case and the middle cover flange of pump group；It includes group ring, seat ring, several connection bolts, wherein the bottom of the seat ring
It is fixed on the top plate of the fuel tank, described group of ring is fixed between the middle cover flange of pump group and the seat ring, and described
It is bolted together between middle cover flange, group ring and seat ring using several connections；Described group of ring includes that coaxial line is upper and lower vertically
Two pressure rings of arrangement, intermediate a ring, two disk rings, two force bearing rings, two snap rings, two retaining rings；Wherein,
Two pressure rings are connected on the seat ring and middle cover flange；
The intermediate ring is arranged between two pressure rings, and on face opposite between the pressure ring and the intermediate ring respectively
It is provided with pressure ring groove and intermediate ring groove；
The force bearing ring limit is in the pressure ring groove, and the snap ring limit is in the intermediate ring groove；
It is connected together between the force bearing ring and snap ring using slot and is provided with retaining ring；
The disk ring is additionally provided between the internal groove side wall of the pressure ring groove of the force bearing ring and pressure ring；
The flat shape of the disk ring is to prolong the waveform of perimeter distribution, and each connection bolt is from the disk ring
It is passed through at the wave crest or trough of wavy shaped configuration, by adjusting the elasticity of connection bolt, the whole of described group of ring can be changed
Body intrinsic frequency.
Further, preferably, the horizontal neutral face of the intermediate ring is provided with several frequency modulation holes not of uniform size along perimeter,
The frequency modulation hole can adjust the intrinsic frequency of intermediate ring.
Further, preferably, the cross sectional shape of the pressure ring groove and intermediate ring groove is trapezoidal；The force bearing ring
Cross sectional shape be also trapezoidal, and be circumferentially provided on its small end end face cross sectional shape be rectangle force bearing ring caulking groove, big end
It is trapezoidal load ring groove that cross sectional shape is circumferentially provided on end face；On one end end face of the retaining ring it is circumferentially arranged have cut
Face shape is trapezoidal retaining ring A convex shoulder, and circumferentially arranged in the other end face to have cross sectional shape be trapezoidal retaining ring B convex shoulder；Institute
State snap ring cross sectional shape be it is trapezoidal, be circumferentially provided on big end end face cross sectional shape be trapezoidal snap ring groove.
Further, preferably, the disk ring is in the force bearing ring caulking groove of the trapezium structure of force bearing ring；The load
Ring is in the pressure ring groove of pressure ring；The retaining ring A convex shoulder of the retaining ring is in the load ring groove of force bearing ring；The retaining ring of retaining ring
B convex shoulder is in the snap ring groove of snap ring；The snap ring is in the intermediate ring groove of intermediate ring.
Further, preferably, the connection bolt includes installation bolt and group set bolt, wherein install bolt from pressure
Ring groove, intermediate ring groove, force bearing ring, snap ring center pass through, and the wavy wave crest or trough of disk ring are located at installation
At bolt hole and group set bolt hole, and when wave crest is located at installation bolt hole, then trough is located at group set bolt hole, works as trough
Then wave crest is located at group set bolt hole when at installation bolt hole.
Further, preferably, the shape of the vibration isolation gasket ring is the ring structure of circular ring shape, quadrangle is with circular arc R nature mistake
It crosses.
Further, preferably, the nested bottom between the pressure ring and force bearing ring and between pressure ring and disk ring is all provided with
It is equipped with pressing sleeve cavity；Nested bottom between the force bearing ring and retaining ring is provided with outer transition cavity, the snap ring and retaining ring it
Between nested bottom be provided with interior transition cavity；Nested bottom between the snap ring and intermediate ring has been provided with middle cavity；
It is provided between the intermediate ring and pressure ring and between snap ring and force bearing ring and blocks gap.
Further, preferably, the integral multiple that the quantity of the connection bolt is 4.
Further, preferably, the material of the pressure ring, intermediate ring is spheroidal graphite cast-iron or noiseless alloy；The force bearing ring,
Retaining ring, snap ring material be graphite or spheroidal graphite cast-iron or pure iron or noiseless alloy or elastomer or alloy aluminum；The seat ring
Material is carbon steel or noiseless alloy；The material of the disk ring is spring steel；It is described connection bolt material be carbon steel or
Noiseless alloy.
Further, preferably, the pressure ring is different from the material of force bearing ring, and force bearing ring is different from the material of retaining ring, button
Ring is different from the material of snap ring, and snap ring is different from the intermediate material of ring.
Compared with prior art, the beneficial effects of the present invention are:
(1), the present invention is using pressure ring, disk ring, force bearing ring, retaining ring, snap ring, intermediate ring, snap ring, retaining ring, force bearing ring, dish
Loop, pressure ring successively compress the structure of connection with the conical surface to each other, and this conical surface nested structure can be by vertical vibration power to group
The inside and outside horizontal direction of ring disperses a part；For pressure ring, intermediate ring, inner sidewall is and outer by the vibration force in horizontal direction
For side wall then by vibration force horizontally outward, the two vibration forces are circumferentially, equal in magnitude contrary, form in-fighting,
The vibration mechanical energy of horizontal direction is transformed into thermal energy and is dispersed into air, to play the role of vibration damping；For snap ring,
Outboard sidewalls are squeezed vibration force, these extrusion and vibration power disperse a part to horizontal direction by the conical surface, these are horizontal
Vibration force is circumferentially equal in magnitude contrary, forms in-fighting, the vibration mechanical energy of horizontal direction is transformed into thermal energy and
It is dispersed into air, to play the role of vibration damping；For retaining ring, inside by extrusion and vibration power horizontally outward, outside
Side is by the extrusion and vibration power in horizontal direction, the two horizontal vibration power are circumferentially equal in magnitude contrary, in formation
Consumption, is transformed into thermal energy for the vibration mechanical energy of horizontal direction and is dispersed into air, to play the role of vibration damping；Further
, due to pressing sleeve cavity, outer transition cavity, interior transition cavity, middle cavity, the effect for blocking gap, block vertical vibration
The direct transmitting of power makes vertical vibration power repeatedly go for a stroll and changes direction, extend the transmission path of vibration force, can also play vibration damping
Effect；Further, not due to the material of adjacent each point of ring, in same level, vibration force is unevenly distributed, and is necessarily produced
Shearing in unboiled water plane, these shearings are internal force, and made function will convert to heat and be dispersed into air, subtract to play
The effect of vibration；Due to nested using the conical surface among adjacent point of ring, so sectional area of the same ring in different level section is unequal,
It causes the vibration force of different cross section unequal, necessarily leads to vertical and horizontal direction shearing, these, which will shear made function, to turn
Become heat to be dispersed into air, to play the role of vibration damping；Again since each interannular material and structure are different, intrinsic vibration
Frequency is different, and vibration is made further to be decayed；Simultaneously because disk ring has the elasticity for being better than other each point of rings, by adjusting group
Cover bolt and the elasticity of bolt be installed, can effectively change group ring whole intrinsic frequency, so that vibration is further decayed；
Then middle cover flange and group ring (not including the pressure ring of lower part) are connected into across a group multiple groups of set bolts of set bolt hole again
One, then will organize ring (not including the pressure ring on top) precession installation threaded hole with multiple installation bolts across installation bolt hole will
Group ring connect integral with seat ring, and the structure being not directly connected between the pressure ring of this group of ring middle and lower part and the pressure ring on top is significantly
The path for transmitting vibration force by installation bolt is extended, damping is increased, to reduce vibration.In the synthesis of above-mentioned measure
Under effect, the vibrating noise of petrol station pump group itself was not only alleviated but also preferably mitigation environment and other equipment vibration holds the present invention
The vibration for carrying pump group influences.The present invention can reduce 10~13 decibels of vibrating noise or more.
(2) present invention may also apply to self-contained vertical pump groups, and fuel tank and fuel tank top plate are replaced by pedestal and face plate of foundation at this time.
(3) present invention uses and automobile-used in addition to for other than ship, can also be applied to land；Achieve good social economy's effect
Benefit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram that present invention group ring 30 and seat ring 60 are overlooked；
Fig. 3, Fig. 4 are the vertical view and A-A schematic cross-sectional view of pressure ring 31 of the present invention respectively；
Fig. 5, Fig. 6 are the vertical view and B-B schematic cross-sectional view of ring 32 among the present invention respectively；
Fig. 7, Fig. 8 are the vertical view and C-C schematic cross-sectional view of force bearing ring 35 of the present invention respectively；
Fig. 9, Figure 10 are the vertical view and D-D schematic cross-sectional view of retaining ring 36 of the present invention respectively；
Figure 11, Figure 12 are the vertical view and E-E section view deployed configuration schematic diagram of disk ring 34 of the present invention respectively；
Figure 13, Figure 14 are the vertical view and F-F schematic cross-sectional view of snap ring 37 of the present invention respectively；
Figure 15, Figure 16 are the vertical view and G-G schematic cross-sectional view of seat ring 60 of the present invention respectively.
Specific embodiment
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.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-16 is please referred to, the stand-type pump group of a kind of bunker oil of the invention answers button-type vibration isolation gasket ring, is mounted on fuel tank
Top plate 11 and pump group 20 middle cover flange 221 between；It includes group ring 30, seat ring 60, several connection bolts, wherein described
The bottom of seat ring 60 is fixed on the top plate 11 of the fuel tank, described group of ring be fixed on the middle cover flange 221 of pump group 20 with
Between the seat ring 60, pump group through-hole 111 is provided on the fuel tank top plate 11；The pump group 20 include prime mover 21, it is middle cover 22,
Middle cover flange 221 and pump 23；Several groups set bolt hole 41, and the middle cover flange 221, group are provided on the middle cover flange 221
It is bolted together between ring 30 and seat ring 60 using several connections；Described group of ring 30 includes that coaxial line is arranged up and down vertically
Two pressure ring 31, one intermediate 32, two, ring, 34, two, disk ring retaining rings 36 of snap ring 37, two of force bearing ring 35, two；Wherein,
Two pressure rings 31 are connected on the seat ring 60 and middle cover flange 221；The intermediate ring 32 is arranged in two pressure rings
It is respectively arranged with pressure ring groove 311 between 31, and on face opposite between the pressure ring and the intermediate ring 32 and intermediate ring is recessed
Slot 321；The limit of force bearing ring 35 is in the pressure ring groove 311, and the limit of snap ring 37 is in the intermediate ring groove 321
It is interior；It is connected together between the force bearing ring 35 and snap ring 37 using slot and is provided with retaining ring 36；The force bearing ring 35 and pressure ring 31
The disk ring 34 is additionally provided between the internal groove side wall of pressure ring groove 311；The flat shape of the disk ring 34 is to prolong perimeter point
The waveform of cloth, and passed through from the wave crest or trough of wavy shaped configuration of each connection bolt from the disk ring 34, pass through
The elasticity of adjustment connection bolt, can change the whole intrinsic frequency of described group of ring 30.
In the present embodiment, the horizontal neutral face of the intermediate ring 32 is provided with several frequency modulation holes not of uniform size along perimeter
322, the frequency modulation hole 322 can adjust the intrinsic frequency of intermediate ring 32.
Specifically, the cross sectional shape of the pressure ring groove 311 and intermediate ring groove 321 is trapezoidal；The force bearing ring 35
Cross sectional shape be also trapezoidal, and the force bearing ring caulking groove 352 that cross sectional shape is rectangle is circumferentially provided on its small end end face, it is big
It is trapezoidal load ring groove 351 that cross sectional shape is circumferentially provided on the end face of end；On one end end face of the retaining ring 36 circumferentially
Being provided with cross sectional shape is trapezoidal retaining ring A convex shoulder 361, and circumferentially arranged in the other end face to have cross sectional shape be trapezoidal button
Ring B convex shoulder 362；The cross sectional shape of the snap ring 37 be it is trapezoidal, be circumferentially provided on big end end face cross sectional shape be it is trapezoidal
Snap ring groove 371.
The disk ring 34 is in the force bearing ring caulking groove 352 of the trapezium structure of force bearing ring 35；The force bearing ring 35 is embedded in
In the pressure ring groove 311 of pressure ring 31；The retaining ring A convex shoulder 361 of the retaining ring 36 is in the load ring groove 351 of force bearing ring 35；
The retaining ring B convex shoulder 362 of retaining ring 36 is in the snap ring groove 371 of snap ring 37；The snap ring 37 is embedded in the intermediate ring of intermediate ring 32
In groove 321.
As preferred embodiment, the connection bolt includes installation bolt 50 and group set bolt 40, wherein installation bolt
50 pass through from the center of pressure ring groove 311, intermediate ring groove 321, force bearing ring 35, snap ring 37, and installation screw thread is provided on seat ring 60
Hole 61, seat ring 60 are weldingly fixed on fuel tank top plate 11, and described group of ring 30 includes vertical two pressure rings arranged up and down of coaxial line
31, intermediate 32, two, ring, 34, two, a disk ring retaining ring 36 of snap ring 37, two of force bearing ring 35, two；Wherein, the pressure ring
31, intermediate ring 32, disk ring 34, force bearing ring 35, snap ring 37, retaining ring 36, upper be provided with install bolt hole 51 and group set bolt hole
41；A group set bolt hole 41 is provided on middle cover flange 221, and the wavy wave crest or trough of disk ring 34 are located at installation bolt hole
51 cover at bolt hole 41 with group, and when wave crest is located at installation bolt hole 51, then trough covers at bolt hole 41 positioned at group, works as wave
Then wave crest is located at group set bolt hole 41 when paddy is located at installation bolt hole 51.
As shown in Figure 1, group ring 30 of the invention carries out nesting from bottom to up in the following order: pressure ring 31, is held disk ring 34
Power ring 35, retaining ring 36, snap ring 37, intermediate ring 32, snap ring 37, retaining ring 36, force bearing ring 35, disk ring 34, pressure ring 31, pump group installation
Seat board 21, then with across a group multiple groups of set bolts 40 (pressure ring 31 without lower part) and pump group installation seat plate for set bolt hole 41
21 link into an integrated entity；Then the lower end surface of the pressure ring 31 of lower part is aligned with the upper surface of seat ring 60, then with across installation bolt
Multiple 50 precessions of installation bolt installation threaded hole 61 in hole 51 will be organized ring 30 (pressure ring 31 without top) and be connected into seat ring 60
It is whole.
As shown in Fig. 2, group ring 30 is the ring structure that shape is circular ring shape, quadrangle is with circular arc R nature transition, on end face
It is provided with cross one another several groups set bolt hole 41 and several installation bolts hole 51, the present embodiment is that 8 groups cover bolt hole 41 and 8
A installation bolt hole 51.
As preferred embodiment, the cross section of the vibration isolation gasket ring is rectangle, and shape is the ring structure of circular ring shape, four
Angle is with circular arc R nature transition.
Wherein, the nested bottom between the pressure ring 31 and force bearing ring 35 and between pressure ring 31 and disk ring 34 is provided with
Pressing sleeve cavity 71；Nested bottom between the force bearing ring 35 and retaining ring 36 is provided with outer transition cavity 722, the snap ring 37 with
Nested bottom between retaining ring 36 is provided with interior transition cavity 721；Nested bottom between the snap ring 37 and intermediate ring 32 is set
It has been equipped with middle cavity 74；It is provided between the intermediate ring 32 and pressure ring 31 and between snap ring 37 and force bearing ring 35 and blocks gap
73.In the present invention, the integral multiple that the quantity of the connection bolt is 4.
As shown in Figure 3, Figure 4, it is that trapezoidal pressure ring is recessed that a cross sectional shape is circumferentially provided on one end end face of pressure ring 31
Slot 311, the material of pressure ring 31 are spheroidal graphite cast-iron or noiseless alloy.
As shown in Figure 5, Figure 6, it is trapezoidal centre that cross sectional shape is circumferentially had on the both ends end face of intermediate ring 32
Ring groove 321 crosses horizontal neutral face along perimeter and is provided with several frequency modulation holes 322 not of uniform size, and the material of intermediate ring 32 is spheroidal graphite
Cast iron or noiseless alloy.
As shown in Figure 7, Figure 8, the cross-sectional shape shape of force bearing ring 35 is trapezoidal, and small end is circumferentially provided with section on end face
Shape is the force bearing ring caulking groove 352 of rectangle, and it is trapezoidal load ring groove that cross sectional shape is circumferentially provided on big end end face
351, material is graphite or spheroidal graphite cast-iron or pure iron or noiseless alloy, and in the place of not fire protection requirement, its material can be height
Play rubber or alloy aluminum.
As shown in Figure 9, Figure 10, it is trapezoidal retaining ring A convex shoulder 361 that one end of retaining ring 36, which is a cross-sectional shape shape, separately
It is trapezoidal retaining ring B convex shoulder 362 that one end, which is a cross-sectional shape shape, material be graphite or spheroidal graphite cast-iron or noiseless alloy or
Pure iron, in the place of not fire protection requirement, its material can be elastomer or alloy aluminum.
As shown in Figure 11, Figure 12, the flat shape of disk ring 34 is along the waveform of perimeter distribution, and wave crest or trough are located at
It installs at bolt hole 51 and group set bolt hole 41, when wave crest is located at installation bolt hole 51, then trough is located at group set bolt hole 41
Place, on the contrary when trough is located at installation bolt hole 51, then wave crest is located at group set bolt hole 41, and material is spring steel.
As shown in figs. 13 and 14, the cross-sectional shape shape of snap ring 37 is trapezoidal, and big end is circumferentially provided with section on end face
Shape is trapezoidal snap ring groove 371, and material is graphite or spheroidal graphite cast-iron or noiseless alloy or pure iron, in no fire protection requirement
Its material of place can be elastomer or alloy aluminum.
As shown in Figure 15, Figure 16, installation threaded hole 61 is provided on seat ring 60, the present embodiment is 8 threaded holes 61, material
Matter is carbon steel.
As shown in Figure 1, 2, the integral multiple that the quantity of group set bolt 40 is 4, and it is more than or equal to 4；The quantity of bolt 50 is installed
For 4 integral multiple, and it is more than or equal to a quantity for group set bolt 40；The present embodiment is that 8 groups cover bolt 40 and 8 installation bolt
50；Group set bolt 40 and the material for installing bolt 50 are carbon steel or noiseless alloy.
The stand-type pump group of bunker oil of the invention answer button-type vibration isolation gasket ring working principle and advantage it is as follows:
The present invention is using pressure ring 31, disk ring 34, force bearing ring 35, retaining ring 36, snap ring 37, intermediate ring 32, snap ring 37, retaining ring
36, force bearing ring 35, disk ring 34, pressure ring 31 successively compress the structure of connection with the conical surface to each other, and this conical surface nested structure can
The inside and outside horizontal direction of vertical vibration power Xiang Zuhuan 30 is dispersed a part；For pressure ring 31, intermediate ring 32, inner sidewall by
Vibration force in horizontal direction, and lateral wall is then by vibration force horizontally outward, the two vibration forces circumferentially, size
The vibration mechanical energy of horizontal direction is transformed into thermal energy and is dispersed into air, to play by equal direction on the contrary, formation in-fighting
The effect of vibration damping；For snap ring 37, outboard sidewalls are squeezed vibration force, these extrusion and vibration power pass through the conical surface to level
Direction dispersion a part, these horizontal vibration power are circumferentially equal in magnitude contrary, in-fighting formed, by horizontal direction
Vibration mechanical energy is transformed into thermal energy and is dispersed into air, to play the role of vibration damping；For retaining ring 36, inside is by water
Outside extrusion and vibration power is equalled, outside is by the extrusion and vibration power in horizontal direction, the two horizontal vibration power are circumferentially
It is equal in magnitude contrary, in-fighting is formed, the vibration mechanical energy of horizontal direction is transformed into thermal energy and is dispersed into air, thus
Play the role of vibration damping；Further, due to pressing sleeve cavity 71, outer transition cavity 722, interior transition cavity 721, middle cavity
74, the effect for blocking gap 73, has blocked the direct transmitting of vertical vibration power, so that vertical vibration power is repeatedly gone for a stroll and change direction,
The transmission path of vibration force is extended, vibration damping can be also played the role of；Further, not due to the material of adjacent each point of ring, exist
In same level, vibration force is unevenly distributed, and necessarily leads to the shearing in horizontal plane, these shearings are internal force, made by
Function will convert to heat and be dispersed into air, to play the role of vibration damping；Due to using the conical surface nested among adjacent point of ring, institute
Sectional area with same ring in different level section is unequal, causes the vibration force of different cross section unequal, necessarily leads to vertical
With the shearing of horizontal direction, the made function of these shearings will convert to heat and be dispersed into air, to play the role of vibration damping；
Again since each interannular material and structure are different, eigentone is different, and vibration is made further to be decayed；Simultaneously because dish
Loop 34 has the elasticity for being better than other each point of rings, can be effectively by adjusting the elasticity of group set bolt 40 and installation bolt 50
The whole intrinsic frequency of change group ring 30 makes vibration further be decayed；Then again with across the multiple of group set bolt hole 41
Group set bolt 40 links into an integrated entity middle cover flange 221 and group ring 30 (not including the pressure ring 31 of lower part), then with across installation spiral shell
Multiple installation bolts 50 of keyhole 51 will organize (not including the pressure ring 31 on the top) precession of ring 30 installation threaded hole 61 will organize ring 30 with
Seat ring 60 connects integral, and the structure being not directly connected between the pressure ring 31 of this group of ring middle and lower part and the pressure ring 31 on top is significantly
The path for transmitting vibration force by installation bolt is extended, damping is increased, to reduce vibration.In the synthesis of above-mentioned measure
Under effect, the vibrating noise of petrol station pump group itself was not only alleviated but also preferably mitigation environment and other equipment vibration holds the present invention
The vibration for carrying pump group influences.The present invention can reduce 10~13 decibels of vibrating noise or more.Present invention may also apply to self-contained verticals
Pump group, fuel tank and fuel tank top plate are replaced by pedestal and face plate of foundation at this time.The present invention can also be applied to land other than for ship
With with it is automobile-used；Achieve good economic results in society.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of stand-type pump group of bunker oil answers button-type vibration isolation gasket ring, it is mounted on top plate (11) and pump group (20) of fuel tank (10)
Middle cover flange (221) between, which is characterized in that the vibration isolation gasket ring include group ring (30), seat ring (60), several connection spiral shells
Bolt, wherein the bottom of the seat ring (60) is fixed on the top plate (11) of the fuel tank (10), and described group of ring (30) is fixed on pump
Between the middle cover flange (221) and the seat ring (60) of group (20), and the middle cover flange (221), group ring (30) and seat
It is bolted together between ring (60) using several connections；Described group of ring (30) includes that coaxial line is two arranged up and down vertical
Pressure ring (31), intermediate ring (32), two disk rings (34), two force bearing rings (35), two snap rings (37), two retaining rings
(36)；Wherein,
Two pressure rings (31) are connected on the seat ring (60) and middle cover flange (221)；
The intermediate ring (32) is arranged between two pressure rings (31), and opposite between the pressure ring and the intermediate ring (32)
Pressure ring groove (311) and intermediate ring groove (321) are respectively arranged on face；
Force bearing ring (35) limit is in the pressure ring groove (311), and snap ring (37) limit is in the intermediate ring groove
(321) in；
It is connected together between the force bearing ring (35) and snap ring (37) using slot and is provided with retaining ring (36)；
The disk ring is additionally provided between the internal groove side wall of the pressure ring groove (311) of the force bearing ring (35) and pressure ring (31)
(34)；
The flat shape of the disk ring (34) is to prolong the waveform of perimeter distribution, and each connection bolt is from the disk ring
(34) it is passed through at the wave crest or trough of wavy shaped configuration, by adjusting the elasticity of connection bolt, described group can be changed
The whole intrinsic frequency of ring (30).
2. the stand-type pump group of bunker oil answers button-type vibration isolation gasket ring according to claim 1, which is characterized in that the intermediate ring
(32) horizontal neutral face is provided with several frequency modulation holes (322) not of uniform size along perimeter, during the frequency modulation hole (322) can be adjusted
Between ring (32) intrinsic frequency.
3. the stand-type pump group of bunker oil answers button-type vibration isolation gasket ring according to claim 1, which is characterized in that the pressure ring groove
(311) and the cross sectional shape of intermediate ring groove (321) is trapezoidal；The cross sectional shape of the force bearing ring (35) is also trapezoidal, and
The force bearing ring caulking groove (352) that cross sectional shape is rectangle is circumferentially provided on its small end end face, big end is circumferentially provided on end face
Cross sectional shape is trapezoidal load ring groove (351)；It is circumferentially arranged on one end end face of the retaining ring (36) to have cross sectional shape
For trapezoidal retaining ring A convex shoulder (361), circumferentially arranged in the other end face to have cross sectional shape be trapezoidal retaining ring B convex shoulder
(362)；The cross sectional shape of the snap ring (37) be it is trapezoidal, be circumferentially provided on big end end face cross sectional shape be trapezoidal snap ring
Groove (371).
4. the stand-type pump group of bunker oil answers button-type vibration isolation gasket ring according to claim 1, which is characterized in that the disk ring
(34) in the force bearing ring caulking groove (352) of the trapezium structure of force bearing ring (35)；The force bearing ring (35) is embedded in pressure ring (31)
In pressure ring groove (311)；The retaining ring A convex shoulder (361) of the retaining ring (36) is embedded in the load ring groove (351) of force bearing ring (35)
In；The retaining ring B convex shoulder (362) of retaining ring (36) is in the snap ring groove (371) of snap ring (37)；The snap ring (37) is embedded in centre
In the intermediate ring groove (321) of ring (32).
5. the stand-type pump group of bunker oil answers button-type vibration isolation gasket ring according to claim 1, which is characterized in that the connection bolt
Including installation bolt (50) and group set bolt (40), wherein install bolt (50) from pressure ring groove (311), intermediate ring groove
(321), force bearing ring (35), snap ring (37) center pass through, and the wavy wave crest of disk ring (34) or trough are located at installation
At bolt hole (51) and group set bolt hole (41), and then trough is located at group set bolt when wave crest is located at installation bolt hole (51)
At hole (41), when trough is located at installation bolt hole (51), then wave crest is located at group set bolt hole (41).
6. the stand-type pump group of bunker oil answers button-type vibration isolation gasket ring according to claim 1, which is characterized in that outside the vibration isolation gasket ring
Shape is the ring structure of circular ring shape, and quadrangle is with circular arc R nature transition.
7. the stand-type pump group of bunker oil answers button-type vibration isolation gasket ring according to claim 1, which is characterized in that the pressure ring (31)
Nested bottom between force bearing ring (35) and between pressure ring (31) and disk ring (34) is provided with pressing sleeve cavity (71)；It is described
Nested bottom between force bearing ring (35) and retaining ring (36) is provided with outer transition cavity (722), the snap ring (37) and retaining ring
(36) the nested bottom between is provided with interior transition cavity (721)；Nested bottom between the snap ring (37) and intermediate ring (32)
Portion has been provided with middle cavity (74)；Between the intermediate ring (32) and pressure ring (31) and between snap ring (37) and force bearing ring (35)
It is provided with and blocks gap (73).
8. the stand-type pump group of bunker oil answers button-type vibration isolation gasket ring according to claim 1, which is characterized in that the connection bolt
Quantity be 4 integral multiple.
9. the stand-type pump group of bunker oil answers button-type vibration isolation gasket ring according to claim 1, which is characterized in that the pressure ring
(31), the material of intermediate ring (32) is spheroidal graphite cast-iron or noiseless alloy；The force bearing ring (35), retaining ring (36), snap ring (37)
Material is graphite or spheroidal graphite cast-iron or pure iron or noiseless alloy or elastomer or alloy aluminum；The material of the seat ring (60) is carbon
Plain steel or noiseless alloy；The material of the disk ring (34) is spring steel；The material of the connection bolt is carbon steel or vibration damping
Alloy.
10. the stand-type pump group of bunker oil answers button-type vibration isolation gasket ring according to claim 9, which is characterized in that the pressure ring
(31) different from the material of force bearing ring (35), force bearing ring (35) is different from the material of retaining ring (36), retaining ring (36) and snap ring (37)
Material it is different, snap ring (37) is different with the material of centre ring (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344225.1A CN110206763A (en) | 2019-04-26 | 2019-04-26 | A kind of stand-type pump group of bunker oil answers button-type vibration isolation gasket ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344225.1A CN110206763A (en) | 2019-04-26 | 2019-04-26 | A kind of stand-type pump group of bunker oil answers button-type vibration isolation gasket ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110206763A true CN110206763A (en) | 2019-09-06 |
Family
ID=67786438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910344225.1A Pending CN110206763A (en) | 2019-04-26 | 2019-04-26 | A kind of stand-type pump group of bunker oil answers button-type vibration isolation gasket ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110206763A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85103709A (en) * | 1985-05-15 | 1985-12-20 | 上海交通大学 | Compound damping isolator |
| CN104930100A (en) * | 2015-06-14 | 2015-09-23 | 中国电子科技集团公司第十研究所 | High-effect dry friction damping spring vibration isolator |
| CN105927696A (en) * | 2016-07-07 | 2016-09-07 | 河南科技大学 | Magneto-rheological vibration isolator for precision machine tool |
| CN106838111A (en) * | 2017-03-31 | 2017-06-13 | 勾厚渝 | Damping isolation system and compound damping isolator |
| CN107355904A (en) * | 2017-08-24 | 2017-11-17 | 广东美的制冷设备有限公司 | Compressor and there is its refrigerating plant |
| CN108626108A (en) * | 2018-05-23 | 2018-10-09 | 武汉麦康德设备有限公司 | Three buckets are nested shape marine pump group vibration isolation mounts |
| CN210106260U (en) * | 2019-04-26 | 2020-02-21 | 武汉麦康德设备有限公司 | Marine oil station vertical pump package is detained type vibration isolation backing ring again |
-
2019
- 2019-04-26 CN CN201910344225.1A patent/CN110206763A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85103709A (en) * | 1985-05-15 | 1985-12-20 | 上海交通大学 | Compound damping isolator |
| CN104930100A (en) * | 2015-06-14 | 2015-09-23 | 中国电子科技集团公司第十研究所 | High-effect dry friction damping spring vibration isolator |
| CN105927696A (en) * | 2016-07-07 | 2016-09-07 | 河南科技大学 | Magneto-rheological vibration isolator for precision machine tool |
| CN106838111A (en) * | 2017-03-31 | 2017-06-13 | 勾厚渝 | Damping isolation system and compound damping isolator |
| CN107355904A (en) * | 2017-08-24 | 2017-11-17 | 广东美的制冷设备有限公司 | Compressor and there is its refrigerating plant |
| CN108626108A (en) * | 2018-05-23 | 2018-10-09 | 武汉麦康德设备有限公司 | Three buckets are nested shape marine pump group vibration isolation mounts |
| CN210106260U (en) * | 2019-04-26 | 2020-02-21 | 武汉麦康德设备有限公司 | Marine oil station vertical pump package is detained type vibration isolation backing ring again |
Non-Patent Citations (1)
| Title |
|---|
| 马娟: "物理性污染控制", 31 December 2016, 电子科技大学出版社, pages: 83 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110173469A (en) | A kind of petrol station horizontal pump group peculiar to vessel answers button-type vibration isolation gasket ring | |
| CN210106258U (en) | Marine oil station horizontal pump package is detained type vibration isolation backing ring again | |
| CN105114446B (en) | Variable ladder damps thrust bearing | |
| AU2009318153B2 (en) | Float for wave energy converter (WEC) | |
| US7290770B2 (en) | Metal laminate gasket | |
| EP2671791B1 (en) | Damped engine support | |
| CN108626108B (en) | Pump set vibration isolation base for three-bucket stacking ship | |
| US20190031291A1 (en) | Low motion semi-submersible | |
| CN110206763A (en) | A kind of stand-type pump group of bunker oil answers button-type vibration isolation gasket ring | |
| CN216070476U (en) | Steering mechanism of steering oar for ship | |
| CN210068829U (en) | Vibration isolator | |
| CN210087693U (en) | Vertical pump group of marine oil station is to detaining type vibration isolation backing ring | |
| CN210106260U (en) | Marine oil station vertical pump package is detained type vibration isolation backing ring again | |
| CN210106259U (en) | Marine oil station horizontal pump package make-up type vibration isolation backing ring | |
| CN201953705U (en) | Combined bearing for vertical planetary gear box of nuclear power circulating water pump | |
| CN110206765A (en) | A kind of stand-type pump group buckle-type vibration isolation gasket ring of bunker oil | |
| CN110206764A (en) | A kind of petrol station horizontal pump group buckle-type vibration isolation gasket ring peculiar to vessel | |
| US20130119592A1 (en) | Hydraulically damping bearing | |
| CN108657377B (en) | Four-bucket overlapping type marine pump set vibration isolation base | |
| CN208311026U (en) | Two, which struggle against, is nested shape marine pump group vibration isolation mounts | |
| CN208431151U (en) | Three, which struggle against, is nested shape marine pump group vibration isolation mounts | |
| CN108518340B (en) | Two-bucket stacked pump set vibration isolation base for ship | |
| KR101290292B1 (en) | tidal stream power turbine for vertical axis | |
| CN108528631B (en) | Five-bucket stacked pump set vibration isolation base for ship | |
| CN111549925A (en) | Composite liquid-particle tuned damping device for vibration reduction of wind power structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |