CN109058367A - Bearing support structure with vibration-damping function - Google Patents
Bearing support structure with vibration-damping function Download PDFInfo
- Publication number
- CN109058367A CN109058367A CN201810852860.6A CN201810852860A CN109058367A CN 109058367 A CN109058367 A CN 109058367A CN 201810852860 A CN201810852860 A CN 201810852860A CN 109058367 A CN109058367 A CN 109058367A
- Authority
- CN
- China
- Prior art keywords
- waveform
- plate
- connect
- vibration
- transformational structure
- 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.)
- Granted
Links
- 238000013016 damping Methods 0.000 title claims abstract description 31
- 229920000642 polymer Polymers 0.000 claims abstract description 28
- 238000009434 installation Methods 0.000 claims abstract description 25
- 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 7
- 241000700608 Sagitta Species 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/005—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion using electro- or magnetostrictive actuation means
- F16F15/007—Piezoelectric elements being placed under pre-constraint, e.g. placed under compression
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/32—Other parts
- B63H23/321—Bearings or seals specially adapted for propeller shafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Bearing support structure with vibration-damping function of the invention includes upper mounting plate, upper junction plate, waveform transformational structure, lower connecting plate, lower installation board, polymer piezo piece and energy consuming circuitry；Upper junction plate side is connect with upper mounting plate, and the other side is connect with waveform transformational structure one end；The waveform transformational structure other end is connect with lower connecting plate side, and the lower connecting plate other side is connect with lower installation board；A piece of polymer piezo piece is respectively pasted at waveform transformational structure both ends, and two panels polymer piezo piece is located at the junction of upper junction plate and waveform transformational structure and lower connecting plate and waveform transformational structure；Polymer piezo piece and waveform transformational structure are connect by conducting wire with energy consuming circuitry；Upper mounting plate is connect with Propulsion Systems transverse bearing under-chassis, and lower installation board is connect with hull pedestal.Bearing support structure with vibration-damping function of the invention can consumption Propulsion Systems pass through the vibrational energy that transverse bearing is transmitted to Ship Structure under conditions of keeping enough support stiffness, and effectively.
Description
Technical field
The present invention relates to the supporting structures of marine propulsion shafting bearing, and in particular to a kind of shafting branch with vibration-damping function
Bearing structure.
Background technique
Propulsion Systems cause the vibration noise problem of Ship Structure to be mesh as the maximum energy transmission person of full ship, vibration
The hot spot paid close attention in preceding engineering.Under normal conditions, the transverse bearing of marine propulsion shafting and hull pedestal are directly connected by bolt
It connects.This mounting means is simple, it is stable to be able to maintain marine propulsion shafting.However, conventional shafting transverse bearing is due to it
Rigidity is big, and the vibrational energy of paddle shaft system can be made to be efficiently transferred to Ship Structure, causes vibration and noise problem, this and ship
The increasing demand of vibration noise performance is incompatible.Therefore not only had supporting functions there is an urgent need to one kind but also had certain
The supporting structure of the shafting transverse bearing of effectiveness in vibration suppression, is installed between transverse bearing and hull pedestal, improves ship
Vibration noise performance.
Summary of the invention
The bearing support structure with vibration-damping function that the purpose of the present invention is to provide a kind of, on the one hand provides foot for shafting
Enough support stiffness guarantee that Propulsion Systems are stable, on the other hand convert the bearing for the vertical vibration of shafting and bearing
The vibration of structure, and the vibrational energy is consumed, play damping effect.
To achieve the above object, the present invention provides a kind of bearing support structure with vibration-damping function, and feature exists
In, including upper mounting plate, upper junction plate, waveform transformational structure, lower connecting plate, lower installation board, polymer piezo piece and energy consumption electricity
Road；The upper junction plate side is connect with the upper mounting plate, and the other side is connect with waveform transformational structure one end；It is described
The waveform transformational structure other end is connect with the lower connecting plate side, and the lower connecting plate other side and the lower installation board connect
It connects；The a piece of polymer piezo piece is respectively pasted at waveform transformational structure both ends, and polymer piezo piece described in two panels is distinguished
Positioned at upper junction plate and waveform transformational structure and the junction of lower connecting plate and waveform transformational structure；The polymer piezo piece and
The waveform transformational structure is connect by conducting wire with the energy consuming circuitry；The upper mounting plate and Propulsion Systems transverse bearing under-chassis
Connection, the lower installation board are connect with hull pedestal.
The above-mentioned bearing support structure with vibration-damping function, wherein the waveform transformational structure includes upper arch sheet, lower arch
Shape plate, the first side plate and the second side plate, the upper arch sheet, the first side plate, lower arch sheet and the second side plate successively join end to end,
Annular framework is constituted, setting intersects steadying plate in the ring frame body.
The above-mentioned bearing support structure with vibration-damping function, wherein the section of the upper arch sheet and the lower arch sheet
It is spline curve, the ratio between the sagitta and span of the upper arch sheet and the lower arch are 1/8~1/12.
The above-mentioned bearing support structure with vibration-damping function, wherein conductive layer is plated on polymer piezo piece two sides, on one side
Conductive layer and waveform transformational structure paste, the conductive layer of another side is connect by conducting wire with energy consuming circuitry.
The above-mentioned bearing support structure with vibration-damping function, wherein it include several resonance frequencies in the energy consuming circuitry, it should
Resonance frequency is consistent with damping frequency.
Compared with prior art, the method have the benefit that,
Bearing support structure with vibration-damping function of the invention is installed between transverse bearing and hull pedestal, and bearing hangs down
It is transmitted to waveform transformational structure to vibration, polymer piezo piece converts vibrational energy into electric energy, which is consumption by conducting wire
Energy circuit power supply, is fallen power consumption by the resistive element in energy consuming circuitry, to play the role of consuming vibrational energy, is reached
The purpose of vibration damping；
Bearing support structure with vibration-damping function of the invention includes several resonance frequencies in the energy consuming circuitry, with
Consume the electric energy of corresponding frequency band；
Bearing support structure with vibration-damping function of the invention, makees energy conversion device using polymer piezo piece, this
Material has the advantages that Low ESR, high pressure piezoelectric voltage constant.
Detailed description of the invention
Bearing support structure with vibration-damping function of the invention is provided by examples and drawings below.
Fig. 1 is the schematic diagram of the bearing support structure with vibration-damping function of present pre-ferred embodiments.
Fig. 2 is the schematic diagram of waveform transformational structure in present pre-ferred embodiments.
Specific embodiment
The bearing support structure with vibration-damping function of the invention is made below with reference to FIG. 1 to FIG. 2 further detailed
Description.
Fig. 1 show the schematic diagram of the bearing support structure with vibration-damping function of present pre-ferred embodiments.
Referring to Fig. 1, the bearing support structure with vibration-damping function of the present embodiment include upper mounting plate 1, upper junction plate 2,
Waveform transformational structure 3, lower connecting plate 5, lower installation board 6, polymer piezo piece 7 and energy consuming circuitry 4；
2 side of upper junction plate is connect with the upper mounting plate 1, the other side and described 3 one end of waveform transformational structure
Connection；3 other end of waveform transformational structure is connect with 5 side of lower connecting plate, 5 other side of lower connecting plate with it is described
Lower installation board 6 connects；
Respectively paste a piece of polymer piezo piece 7, and polymer piezo described in two panels in 3 both ends of waveform transformational structure
Piece 7 is located at the junction of upper junction plate 2 and waveform transformational structure 3 and lower connecting plate 5 and waveform transformational structure 3；
The polymer piezo piece 7 and the waveform transformational structure 3 are connect by conducting wire 8 with the energy consuming circuitry 4；
The upper mounting plate 1 is bolted with Propulsion Systems transverse bearing under-chassis, the lower installation board 6 and hull base
Seat is bolted.
When marine propulsion shafting is run, the vertical vibration of transverse bearing will be caused, by upper mounting plate 1 and upper junction plate 2,
Bearing vertical vibration is transmitted to waveform transformational structure 3 by lower installation board 6 and lower connecting plate 5, and 3 both ends of waveform transformational structure will be formed
Bending vibration energy (mechanical energy) is converted electric energy by bending vibration, the polymer piezo piece 7 on both ends, which passes through conducting wire
8 power for energy consuming circuitry 4, are fallen power consumption by the resistive element in energy consuming circuitry 4, to play the work of consumption vibrational energy
With achieving the purpose that vibration damping.As long as in addition, reasonably selecting upper mounting plate 1, upper junction plate 2, waveform transformational structure 3, lower connecting plate
5 and lower installation board 6 material, rationally design upper mounting plate 1, upper junction plate 2, waveform transformational structure 3, lower connecting plate 5 and lower peace
The size of loading board 6 can enable the supporting structure provide enough support stiffness for Propulsion Systems, guarantee that Propulsion Systems operation is steady
It is fixed.
Fig. 2 show the schematic diagram of waveform transformational structure in present pre-ferred embodiments.
Referring to Fig. 1 and Fig. 2, the waveform transformational structure 3 includes upper arch sheet 31, lower arch sheet 32,33 and of the first side plate
Second side plate 35, the upper arch sheet 31, the first side plate 33, lower arch sheet 32 and the second side plate 35 successively join end to end, and constitute
Annular framework, setting intersects steadying plate 34 in the ring frame body.The quantity for intersecting steadying plate 34 is at least two pieces, and each
Block intersects the intersection of steadying plate 34 and is installed in the ring frame body.
The section (along its length) of the upper arch sheet 31 and the lower arch sheet 32 is spline curve, the arch
The ratio between the sagitta and span of shape plate 31 and the lower arch sheet 32 are 1/8~1/12.Preferably, in the present embodiment, it is described on
The ratio between the sagitta and span of arch sheet 31 and the lower arch sheet 32 are 1/10.
The a piece of polymer piezo piece 7 is respectively pasted on the upper arch sheet 31 and the lower arch sheet 32, and described poly-
Object piezoelectric patches 7 is closed to be located at vault.Conductive layer is plated on 7 two sides of polymer piezo piece, conductive layer and upper arch sheet 31 on one side
Or lower arch sheet 32 is pasted, the conductive layer of another side is connect by conducting wire 8 with energy consuming circuitry 4.Preferably, the polymer piezo
Piece 7 is piezoelectric chip.
The energy consuming circuitry 4 is formed by several resistance, inductance and capacitance component serial or parallel connection, is wrapped in energy consuming circuitry 4
Containing several resonance frequencies, the resonance frequency is consistent with damping frequency.
When bearing vertical vibration is transmitted to waveform transformational structure 3, upper arch sheet 31 and lower arch sheet 32 will form bending vibration
Dynamic, vibrational energy is converted electric energy by polymer piezo piece 7, forms certain alternating current between 7 liang of conductive layers of polymer piezo piece
Pressure；The alternating voltage is the power supply of energy consuming circuitry 4 by conducting wire 8, is fallen power consumption by the resistive element in energy consuming circuitry 4, from
And play the role of consuming vibrational energy, achieve the purpose that vibration damping.
The upper mounting plate 1 is equipped with several mounting holes, and mounting hole matches with each installation bolt holes of bearing；Institute
Stating upper mounting plate 1 is plate in homogeneous thickness, and the thickness of the upper mounting plate 1 is close or equal to bearing under-chassis thickness.
Referring to Fig. 1, the upper junction plate 2 is connect with the upper arch sheet 31 of the waveform transformational structure 3, and is located on described
At the vault of arch sheet 31.The upper junction plate 2 is also plate in homogeneous thickness, and the thickness of the upper junction plate 2 is close or waits
In the thickness of the upper mounting plate 1.The height of the upper junction plate 2 is (between i.e. between 31 vault of upper mounting plate 1 and upper arch sheet
Away from) not less than the installation space demand of bearing under-chassis installation bolt.In the present embodiment, the upper junction plate 2 with a thickness of described
0.8 times of the thickness of upper mounting plate 1.
The waveform transformational structure 3 respectively forms plate (upper arch sheet 31, lower arch sheet 32, the first side plate 33, the second side plate
35 and intersect steadying plate 34) under conditions of meeting vertical stiffness, intensity minimize panel thickness.It is described in the present embodiment
The thickness that waveform transformational structure 3 respectively forms plate is equal to the 1/5 of 1 thickness of upper mounting plate.
The lower connecting plate 5 is connect with the lower arch sheet 32 of the waveform transformational structure 3, and is located at the lower arch sheet 32
Vault at.The lower connecting plate 5 is also plate in homogeneous thickness, and the thickness of the lower connecting plate 5 is close or equal under described
The thickness of mounting plate 6.The height (spacing i.e. between lower installation board 6 and lower 32 vault of arch sheet) of the lower connecting plate 5 is not small
In the installation space demand of hull pedestal installation bolt.
The lower installation board 6 is equipped with several mounting holes, and mounting hole matches with hull foundation bolt hole；The lower peace
Loading board 6 is plate in homogeneous thickness, and the thickness of the lower installation board 6 is close or equal to bearing under-chassis thickness.
The arch sheet consistency of thickness that the thickness of the polymer piezo piece 7 is pasted with it.
In the present embodiment, transverse bearing under-chassis with a thickness of 25mm, each under-chassis by 6 installation feet, installation foot having a size of
100mm × 100mm, about 3 tons of bearing load, i.e., each installation foot load is 500kg.Supporting structure uses high-strength stainless steel,
Yield strength is not less than 500MPa.According to supporting structure strength demand, upper mounting plate 1 with a thickness of 20mm, having a size of 100mm ×
100mm；Upper junction plate 2 is with a thickness of 20mm, having a size of 100mm × 40mm；All panel thickness of waveform transformational structure 3 are 5mm,
In upper arch sheet 31, lower arch sheet 32 sagitta be 10mm, span 100mm, the polymer piezo piece 7 pasted thereon with a thickness of
5mm, having a size of 100mm × 90mm；First side plate 33 and the second side plate 35 are having a size of 100mm × 60mm；Lower connecting plate 5 with a thickness of
20mm, having a size of 100mm × 40mm；Lower connecting plate 6 with a thickness of 20mm, having a size of 100mm × 100mm.Energy consuming circuitry 4 is by several
Resistance, capacitor and inductance element form 18 resonator systems, and intrinsic frequency is between 10Hz~100Hz, are spaced 5Hz.
According to bearing load and structural design drawing sample, analyzed by calculating, supporting structure entirety vertical stiffness about 43.8kN/
mm；Dead load flowering structure maximum stress 96.1MPa, far smaller than material yield strength；Other two lateral stiffness are respectively about
2.0kN/mm,5.5kN/mm；When shock-absorbing bearing structure is arranged, the big direction of lateral stiffness keeps laterally uniform with shafting, horizontal
The direction small to rigidity is kept with shafting vertical consistency, then the stability that Propulsion Systems can be kept to run.By estimating the bearing
Structure can make face plate of foundation vibration acceleration level in 10Hz~100Hz frequency range reduce about 5.5dB.
Claims (5)
1. the bearing support structure with vibration-damping function, which is characterized in that including upper mounting plate, upper junction plate, waveform Change-over knot
Structure, lower connecting plate, lower installation board, polymer piezo piece and energy consuming circuitry；
The upper junction plate side is connect with the upper mounting plate, and the other side is connect with waveform transformational structure one end；Institute
It states the waveform transformational structure other end to connect with the lower connecting plate side, the lower connecting plate other side and the lower installation board connect
It connects；
The a piece of polymer piezo piece is respectively pasted at waveform transformational structure both ends, and polymer piezo piece described in two panels is distinguished
Positioned at upper junction plate and waveform transformational structure and the junction of lower connecting plate and waveform transformational structure；
The polymer piezo piece and the waveform transformational structure are connect by conducting wire with the energy consuming circuitry；
The upper mounting plate is connect with Propulsion Systems transverse bearing under-chassis, and the lower installation board is connect with hull pedestal.
2. as described in claim 1 with the bearing support structure of vibration-damping function, which is characterized in that the waveform transformational structure
Including upper arch sheet, lower arch sheet, the first side plate and the second side plate, the upper arch sheet, the first side plate, lower arch sheet and second
Side plate successively joins end to end, and constitutes annular framework, setting intersects steadying plate in the ring frame body.
3. as claimed in claim 2 with the bearing support structure of vibration-damping function, which is characterized in that the upper arch sheet and institute
The section for stating lower arch sheet is spline curve, and the ratio between the sagitta and span of the upper arch sheet and the lower arch 2 are 1/8
~1/12.
4. as described in claim 1 with the bearing support structure of vibration-damping function, which is characterized in that the polymer piezo piece
Conductive layer is plated on two sides, and conductive layer and waveform transformational structure on one side is pasted, and the conductive layer of another side passes through conducting wire and energy consuming circuitry
Connection.
5. as described in claim 1 with the bearing support structure of vibration-damping function, which is characterized in that wrapped in the energy consuming circuitry
Containing several resonance frequencies, the resonance frequency is consistent with damping frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810852860.6A CN109058367B (en) | 2018-07-30 | 2018-07-30 | Shafting supporting structure with vibration reduction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810852860.6A CN109058367B (en) | 2018-07-30 | 2018-07-30 | Shafting supporting structure with vibration reduction function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109058367A true CN109058367A (en) | 2018-12-21 |
| CN109058367B CN109058367B (en) | 2020-12-04 |
Family
ID=64831763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810852860.6A Active CN109058367B (en) | 2018-07-30 | 2018-07-30 | Shafting supporting structure with vibration reduction function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109058367B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10207862C1 (en) * | 2002-02-23 | 2003-07-24 | Contitech Vibration Control | Active bearing element for active isolation of HF vibrations, e.g. for use in an engine or drive, uses piezoelectric actuator for varying spring stiffness of sprung rubber pad supporting connection element |
| CN2653218Y (en) * | 2003-10-22 | 2004-11-03 | 华中科技大学 | Spring support device |
| JP2005337320A (en) * | 2004-05-25 | 2005-12-08 | Canon Inc | Structure, semiconductor aligner and device manufacturing method |
| CN201496470U (en) * | 2009-09-09 | 2010-06-02 | 喻莉英 | Shock-absorbing mechanical device |
| CN203320395U (en) * | 2013-06-04 | 2013-12-04 | 同济大学 | X-shaped metal shock-absorbing device applicable to bridge structures and with limiting capability |
| CN104218914A (en) * | 2013-05-31 | 2014-12-17 | 通用汽车环球科技运作有限责任公司 | Piezoelectric resonators for reduction of noise and vibration in vehicle components |
| CN204239580U (en) * | 2014-10-16 | 2015-04-01 | 浙江省海运集团舟山五洲船舶修造有限公司 | A kind of marine shafting vibration damping equipment |
| CN106286693A (en) * | 2016-09-21 | 2017-01-04 | 中国工程物理研究院总体工程研究所 | One is applicable to big amplitude and wide band active-passive integratedization subtracts isolation mounting |
| CN206099626U (en) * | 2016-10-20 | 2017-04-12 | 浙江国际海运职业技术学院 | Move away to avoid possible earthquakes base and marine generator assembly of marine generator |
| CN106899234A (en) * | 2017-05-02 | 2017-06-27 | 西安电子科技大学 | A kind of multidirectional energy gathering apparatus of piezoelectric type |
-
2018
- 2018-07-30 CN CN201810852860.6A patent/CN109058367B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10207862C1 (en) * | 2002-02-23 | 2003-07-24 | Contitech Vibration Control | Active bearing element for active isolation of HF vibrations, e.g. for use in an engine or drive, uses piezoelectric actuator for varying spring stiffness of sprung rubber pad supporting connection element |
| CN2653218Y (en) * | 2003-10-22 | 2004-11-03 | 华中科技大学 | Spring support device |
| JP2005337320A (en) * | 2004-05-25 | 2005-12-08 | Canon Inc | Structure, semiconductor aligner and device manufacturing method |
| CN201496470U (en) * | 2009-09-09 | 2010-06-02 | 喻莉英 | Shock-absorbing mechanical device |
| CN104218914A (en) * | 2013-05-31 | 2014-12-17 | 通用汽车环球科技运作有限责任公司 | Piezoelectric resonators for reduction of noise and vibration in vehicle components |
| CN203320395U (en) * | 2013-06-04 | 2013-12-04 | 同济大学 | X-shaped metal shock-absorbing device applicable to bridge structures and with limiting capability |
| CN204239580U (en) * | 2014-10-16 | 2015-04-01 | 浙江省海运集团舟山五洲船舶修造有限公司 | A kind of marine shafting vibration damping equipment |
| CN106286693A (en) * | 2016-09-21 | 2017-01-04 | 中国工程物理研究院总体工程研究所 | One is applicable to big amplitude and wide band active-passive integratedization subtracts isolation mounting |
| CN106286693B (en) * | 2016-09-21 | 2018-01-16 | 中国工程物理研究院总体工程研究所 | One kind is applied to large amplitude and wide band active-passive integratedization subtracts isolation mounting |
| CN206099626U (en) * | 2016-10-20 | 2017-04-12 | 浙江国际海运职业技术学院 | Move away to avoid possible earthquakes base and marine generator assembly of marine generator |
| CN106899234A (en) * | 2017-05-02 | 2017-06-27 | 西安电子科技大学 | A kind of multidirectional energy gathering apparatus of piezoelectric type |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109058367B (en) | 2020-12-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201461844U (en) | Metal rubber vibration isolator | |
| CN104953858A (en) | Converter valve tower | |
| CN215378812U (en) | Prestressed cable truss photovoltaic support | |
| CN203475602U (en) | Inclined strut conversion structure applied to high-rise buildings | |
| CN109058367A (en) | Bearing support structure with vibration-damping function | |
| CN201785890U (en) | Single-hole steel plate energy consuming shock absorber for construction | |
| CN204252312U (en) | A kind of function divergence type annulus mild steel damper | |
| CN107905399A (en) | A kind of electromagnetic damping negative stiffness bearing | |
| CN201397224Y (en) | Horizontal bidirectional earthquake simulation vibration table board stiffened through groined steel rail beam | |
| CN202170536U (en) | Slewing support mounting seat for lower frame of construction machine | |
| CN201195760Y (en) | Aluminum cell around negative bar bracket | |
| CN203093716U (en) | Limit-supporting base used for engine of excavator | |
| CN203568690U (en) | Track connecting structure capable of bearing complex load | |
| CN207073679U (en) | A kind of novel combination type machinery damping base | |
| CN202756536U (en) | Diesel engine generating set shock pad | |
| CN101975329B (en) | Supporting device with aluminum honeycomb interlayer and carbon fiber skin | |
| CN108054983A (en) | Photovoltaic module support and its mounting process | |
| CN206765796U (en) | A kind of counterbalanced lift truck engine Grazing condition damping | |
| CN102996368B (en) | Engine room truss of wind generation set | |
| CN207543403U (en) | A kind of auxiliary device suitable for PCB high aspect ratio products | |
| CN202991982U (en) | Multi-layer obliquely-arranged gauze pad vibration isolator | |
| CN206077310U (en) | A kind of photovoltaic board mount for photovoltaic generation tracks of device | |
| CN207436304U (en) | A kind of electromagnetic damping negative stiffness bearing | |
| CN202203609U (en) | Shell bracket of winch | |
| CN202123060U (en) | Bearing beam device of vibrating screen |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |