CN201202759Y - Composite damping elastic support - Google Patents
Composite damping elastic support Download PDFInfo
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- CN201202759Y CN201202759Y CNU2008200336953U CN200820033695U CN201202759Y CN 201202759 Y CN201202759 Y CN 201202759Y CN U2008200336953 U CNU2008200336953 U CN U2008200336953U CN 200820033695 U CN200820033695 U CN 200820033695U CN 201202759 Y CN201202759 Y CN 201202759Y
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- damping
- elastic support
- main body
- annular resilient
- resilient main
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Abstract
The utility model provides a composite damping elastic support used for the buffer bases of ship floating cabins and devices, vehicle elastic seats, the anti-quake foundations of engineering construction and engineering facilities, the elastic bases of various electromechanical equipments and facilities, satisfying the comprehensive technical requirements of the engineering system on the vibration isolation, anti-quake and buffering, in particular to the safety protective requirement for the low-frequency large displacement impact disturbance. The composite damping elastic support is constructed by the parallel connection of an annular elastic body and a damping buffer mechanism; wherein, the annular elastic body is constructed by the threaded connection of the followings, a plurality sections of stainless steel strand wires (5), a metal clamp plate (7), a mounting bottom plate (3) and a connecting plate (4); the damping buffer mechanism is assembled by the followings, a damping cylinder (9), a piston (2), a damping block (10), a buffer cushion (11) and a locking nut (12); the composite damping elastic support has the quasilinear comprehensive rigidity characteristic in normal working condition and automatically converts to the softening non-linear rigidity characteristic under the instantaneous large displacement working condition. The composite damping elastic support has the advantages of enabling the engineering system to realize the comprehensive dynamic technical performance of good low-frequency vibration isolation effect, impact safety and the stability in normal working condition, simple structure, long service life, high safety, high reliability and low maintenance cost.
Description
Technical field
The utility model relates to a kind of composite damping elastic support, and the antidetonation, buffering and the vibration that are used for boats and ships, vehicle, building and all kinds of electromechanical equipment and facility are isolated.
Background technique
Boats and ships, vehicle, building and all kinds of electromechanical equipment and facility system require to have stably working environment and reasonably vibrate isolation effect under the small size vibration interference situation of general middle and high frequency; and be subjected to irregular external large impact (as blast, earthquake, by force jolt or the impact of aircraft landing to ship deck the time) time system should possess the abundant absorption of input macro-energy and consume function; with reduction equipment and staff's shock response on one's body; and can guarantee not unstability of system, normal operation of protection equipment and staff's personal safety.This is one and remains the contradiction problem that continues to solve in the vibration control technology field.
Solve this contradiction technical problem, the basis (as the crew's cabin) in the bearing of equipment or staff place should have automatic adaptability to the Different Dynamic environment, promptly has automatic change stiffness characteristics.System is bigger because of ratio of rigidity when small size vibration, operates steadily and rational vibration isolation effect is arranged; Be automatically converted to enough low rigidity to improve the isolation effect of system's impact and impact in big displacement temporarily, also should be able to guarantee simultaneously equipment in this case not unstability be in normal working.
What prior art the most generally adopted is that vibration isolator (vibration damper) and buffer are made yielding support to dynamical system.This centering, high frequency external excitation or little displacement interference ratio are more effective, and (isolated controlling of generally≤6Hz) external big displacement interference is difficult to realize, and is poorer to the isolation effect of explosive shock wave or seismic waves to low frequency.For the isolation effect of raising system, adopted the isolation technology of pneumatic spring or the formation of Composite Steel plate holder rubber at present in the engineering to low-frequency disturbance.The air rubber that pneumatic spring is made by rubber is made, can satisfy the low frequency vibration isolation requirement, but its biggest problem is how to solve the leakage of gas in the capsule and the physical strength and the life problems of rubber material, and simultaneously, capsule is difficult to realize to the requirement of the high internal pressure strength of transient state; The multilayer steel plates rubber absorbers exist the physical strength of rubber and age limit too and from great, are difficult to realize the low frequency characteristic requirement simultaneously; And most critical is that the said goods does not possess automatic change rigidity function, the adaptive capacity difference that big displacement vibratory impulse is disturbed and be easy to generate the colloid fracture, these defectives be difficult to satisfy system to particular environment require, the stability and the reliability requirement of operation.
The model utility content
The purpose of this utility model is to overcome above-mentioned deficiency, a kind of composite damping elastic support with automatic change stiffness characteristics is provided, can adapt to integrated technology requirements such as vibration isolation, antidetonation, buffering and the structural safety of engineering system under varying environment be reliable automatically, the safety protection under the input environment is impacted in especially big displacement.
Main solution of the present utility model is achieved in that
Twist through spiral by Stainless Steel Wire and to close the multiply Stainless Steel Wire twisted wire that forms and be fixed on metal grip block and the connecting plate by the symmetric arrays mode, again with bottom plate connecting is installed, constitute the annular resilient main body of the utility model composite damping elastic support; The damping buffering device of being made up of damping cylinder, piston, locking nut, snubber block and cushion pad is connected between the installation base plate and connecting plate of annular resilient main body, forms the utility model composite damping elastic support.
Described Steel Wire Strand twisted wire is to be twisted to close through spiral by 49-163 Stainless Steel Wires to form, the dry-friction damping that is produced when slide relative between silk and silk can consume external kinergety effectively, make the annular resilient main body present the nonlinear dampling feature, the dynamic magnification factor of reduction system under the vibration peak responsive state, and this power gain will reduce with the increase of system motion speed.
Described annular resilient main body is to be assembled by above-mentioned Steel Wire Strand twisted wire, its rigidity in vertical process by compression is non-linear softening type feature, be that its vertical stiffness reduces along with the increase of external vibration and impact noise amplitudes, system also improves with the noise amplitudes increase of external vibration and impact the isolation effect of vibration and impact, and system is realized external vibration of difference and the steady isolation of impacting interference.Change gauge of wire, number of share of stock, twist and close structural parameter such as bolt angle, ring bodies boundary dimension, can realize the different rigidity of the utility model, damping characteristic and vertical bearing capacity.
Described damping buffering mechanism and annular resilient main body formation in parallel the utility model composite damping elastic support.To be the utility model impact instantaneous maximum displacement when disturbing bearing external big displacement to the effective travel of piston in damping buffering mechanism cylinder block.Snubber block set in the damping buffering mechanism is by pre-design stiffness characteristics requirement design.Under initial assembling condition, the in-house piston of damping buffering link to each other with connecting plate on the annular resilient main body and precompression on snubber block, determine the static pre compressed magnitude of snubber block according to the stiffness characteristics of the designing requirement of the quiet bearing capacity of the utility model and snubber block, quiet bearing capacity that the utility model is being possessed setting is arranged and rational initial stiffness under initial assembling condition.Installation base plate of the present utility model links by bolt and engineering foundation, and equipment (or floor of staff working room) is solid on connecting plate of the present utility model with bolt, thereby realizes the resilient connection between engineering foundation and the equipment (or on staff).
All hardwares in the utility model except that snubber block and cushion pad are made by stainless steel, High Strength Structural Steel or high-strength aluminum alloy material, and the structural strength height can adapt to all kinds of different Environmental Conditions requirements.
Compared with the prior art the utility model has the following advantages:
The utlity model has automatic change stiffness characteristics, can satisfy under the small size vibration interference of engineering system when proper functioning and have stationarity, can be implemented in the big displacement of moment low frequency again automatically and disturb the safety and stability that has significant isolation effect down and guarantee system's operation.Solved the contradiction between the stationarity three who improves under low frequency vibration isolation effect, impact safety and the normal working.Simultaneously, the utlity model has non-linear rigidity and nonlinear dampling characteristic, under different dynamic environment, can improve the isolation effect of system automatically vibratory impulse.Simple in structure, long service life, maintenance cost are low.
The utility model is applicable to the elastic base of earthquake proof foundation, various electromechanical equipment and facility of buffering pedestal, vehicle resilient seat, engineering construction and the job facilities of unsteady cabin peculiar to vessel and equipment, satisfy the technical requirements of engineering system to vibration isolation, antidetonation and buffering, particularly the safety protection requirement of disturbing is impacted in big displacement to low frequency.
Description of drawings:
Fig. 1 is the utility model composite damping elastic support embodiment general assembly drawing (sectional view);
Fig. 2 is the utility model composite damping elastic support embodiment general assembly drawing (side view);
Fig. 3 is the annular resilient agent structure schematic representation of the utility model composite damping elastic support
Fig. 4 is the installation base plate schematic representation of annular resilient main body in the utility model
Fig. 5 is the damping buffering mechanism structure schematic representation of the utility model composite damping elastic support
Fig. 6～Fig. 9 is the different structure schematic representation of damping buffering mechanism internal damping piece in the model utility basis
Figure 10 is the static load deformation characteristic curve synoptic diagram of the utility model composite damping elastic support
Embodiment:
Embodiment during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:
Shown in accompanying drawing 1, accompanying drawing 2, illustrate that the utility model mainly is formed in parallel through scyewed joint annular resilient main body of forming and the damping buffering mechanism that is assembled into by damping cylinder 9, piston 2, snubber block 10, cushion pad 11 and locking nut 12 by multiply Stainless Steel Wire twisted wire 5, metal grip block 7, installation base plate 3 and connecting plate 4, adopts threaded connection mode between annular resilient main body and the damping buffering mechanism.Damping buffering mechanism places the neutral position of the installation base plate 3 and the connecting plate 4 of annular resilient main body, the upper end of damping buffering mechanism links by the connecting plate 4 of screw thread on the piston 2 and annular resilient main body, the lower end adopts the screw 1 and the installation base plate 3 of annular resilient main body to link, thereby constitutes the utility model integral body.When engineering is used, adopt Bolt Connection between the installation base plate 3 of annular resilient main body and the basis, also adopt bolt to link between connecting plate 4 and the engineering equipment, make and form the anti-vibration and shock resilient connection between engineering equipment and basis.
As shown in Figure 3, be the annular resilient agent structure schematic representation in the utility model.Steel Wire Strand twisted wire 5 is to be twisted to close through spiral by 49-163 root Stainless Steel Wire to form, to be no less than 8 equal length Steel Wire Strand twisted wires 5 by the symmetrical arrangement mode shown in accompanying drawing 1, the accompanying drawing 2 again and arrange assembling equidistantly, one end of every Steel Wire Strand twisted wire 5 adopts spiral shell Nail 6 to be clamped in the middle of two metal grip blocks 7, and the other end adopts embedding pressure mode to be fixed in the hole of connecting plate 4.With screw 8 two groups of metal grip blocks 7 are separately fixed at the right and left that base plate 3 is installed at last, constitute annular resilient main body of the present utility model.Steel wire diameter, number of share of stock and stubborn ring-type size of closing bolt angle, annular resilient main body that change to form steel wire twisted wire 5 can change compression stiffness and the nonlinear characteristic of annular resilient main body on vertical.
As shown in Figure 4, for the schematic representation of base plate 3 is installed in the annular resilient main body in the utility model.Base plate 3 is installed by steel plate calendering or casting, the angle [alpha] between itself and bottom plane can need to determine by design, generally is not more than 45 °, and different angle [alpha] will directly influence compression stiffness size and the nonlinear characteristic of annular resilient main body on vertical.
As shown in Figure 5, be the damping buffering mechanism structure schematic representation in the utility model.Mainly constitute by damping cylinder 9, piston 2, snubber block 10, cushion pad 11 and locking nut 12.The inner chamber of damping cylinder 9 is the vertical maximum dynamic displacement of pre-design of system in the vertical useful space.Cylinder inner bottom part circumferencial direction evenly distributed have be no less than 4 damping holes 13, reasonably the diameter of damping hole and the positive/negative pressure that length can make piston form in cylinder in the to-and-fro motion process can absorb and consume the piston motion energy most effectively.In normal operation, the precompression restoring force of the upper-end surface dependence annular resilient main body of damping cylinder 5 inner carriers 2 is compression shock absorption piece 10 tightly, snubber block 10 under the precompression ring-type rigidity and the annular resilient main body in the stack of the rigidity of ring bodies under its pre-compressed state that forms of multiply Stainless Steel Wire twisted wire 5, form the utility model vertical pseudo-linear integral stiffness in normal operation.Change the stiffness characteristics of snubber block and the stiffness characteristics of annular resilient main body, will change the utility model pseudo-linear integral stiffness in normal operation.The cushion pad 11 that is arranged at damping cylinder 9 bottoms is used to prevent when piston from moving downward and base plate 3 is installed is produced rigid collision.Cushion pad 11 is made by rubber type of material.
Shown in accompanying drawing 6～accompanying drawing 9, the different section structure shape of the snubber block 10 that is provided with in the damping buffering of the present utility model mechanism is described: accompanying drawing 6 is Y shape, and accompanying drawing 7 be a V-arrangement, and accompanying drawing 8 is annular, and accompanying drawing 9 is a square shape.Different structure shapes will form the different vertical compression stiffness characteristic of snubber block.Snubber block 10 is by rubber-like or Stainless Steel Cloth class material die forming.
As shown in Figure 10, the deformation behaviour of the utility model composite damping elastic support under vertical plus load effect is described.Some A in the accompanying drawing 10 is expressed as the utility model equinoctial point in normal operation, and this puts pairing load value is static load under the normal working, the pairing quiet amount of deformation that is deformed under the normal working.Some B in the accompanying drawing 10 is a rigidity transition point of the present utility model, and its corresponding load value is the maximum, force response of system under the external interference of the little amplitude of middle and high frequency, and the distortion of its correspondence also is the maximum displacement response value under this operating mode.Be subjected to the big displacement of external low frequency and impact when disturbing when system is vertical, static load-deformation characteristic of the present utility model is shown in the BC section in the accompanying drawing 10, the elastic deformation amount increases rapidly, the force-responsive value amplification of system is small, and the big displacement movement energy of input system is absorbed, stores (shaded area under the curve is expressed as the energy that the present invention absorbs) in a large number by the utility model.The represented rigidity characteristic of entire curve is the combination of two kinds of rigidity characteristic, and promptly the non-linear low rigidity characteristic of the desired property of softening of system buffer antidetonation (BC section curve forms) under the operating mode is impacted in desired pseudo-linear rigidity characteristic of system's vibration isolation (OAB section curve forms) and big displacement under the nominal situation.
Working principle of the present utility model and working procedure:
Under static operating mode, the utility model composite damping elastic support is in initial static balancing stress (being A point in the accompanying drawing 10), and the equipment that it supported (or staff) is in the steady stability working state.After the small size vibration of external middle and high frequency is input to the utility model from the basis, elastomeric isolation through annular resilient main body and snubber block, make vibratory response amplitude on the equipment of being delivered to (or the person) be reduced to pre-design and require (its maximum amplitude is not more than the B point in the accompanying drawing 10), the vibration isolation effect of system is determined with damping characteristic by annular resilient main body and snubber block institute implementation trade-off rigidity.In this course, piston and snubber block are in contact condition all the time.
When the big displacement of external low frequency impact (as blast, earthquake, by force jolt or aircraft landing contact ship deck etc.) behind basis input the utility model, piston will be thrown off snubber block (being the B point in the accompanying drawing 10) and be moved down rapidly, gas in the cylinder is discharged by damping hole, the annular resilient main body produces the squeezed state large deformation, the pseudo-linear integral stiffness that the rigidity of the utility model on vertical is formed jointly by original annular resilient main body and snubber block is automatically converted to the property of softening non-linear rigidity of annular resilient main body, and this rigidity reduces with the increase of displacement.The annular resilient main body in the large deformation process with a large amount of absorption system kinergeties; In the non-linear dry-friction damping of annular resilient main body and cylinder under the acting in conjunction of the fluid damping in air communication overdamping hole, kinergety with obvious consumption systems, thereby significantly reduce the response on the equipment that is delivered to (or person), realize the safety in operation of equipment, the Security and the travelling comfort of the person effectively.
When the external shock displacement surpassed the stroke of cylinder setting downwards, piston and the cushion pad Elastic Contact that sets in advance can be avoided piston and the rigid collision that base plate is installed.The impact that resets that in impacting generating process, will produce, piston moves up, until with the snubber block elastic impact, can avoid piston generation rigid collision equally.
Claims (11)
1, a kind of composite damping elastic support, it is characterized in that being formed in parallel through scyewed joint annular resilient main body of forming and the damping buffering mechanism that is assembled into by damping cylinder (9), piston (2), snubber block (10), cushion pad (11) and locking nut (12), adopt threaded connection mode between annular resilient main body and the damping buffering mechanism by multiply Stainless Steel Wire twisted wire (5), metal grip block (7), installation base plate (3) and connecting plate (4).
2, composite damping elastic support according to claim 1 is characterized in that described damping buffering mechanism places the neutral position of the installation base plate (3) and the connecting plate (4) of annular resilient main body; The upper end of damping buffering mechanism links by the connecting plate (4) of screw thread on the piston (2) and annular resilient main body, and the lower end adopts the screw (1) and the installation base plate (3) of annular resilient main body to link.
3, composite damping elastic support according to claim 1 is characterized in that the Stainless Steel Wire twisted wire (5) in the described annular resilient main body is to be twisted to close through spiral by 49-163 root Stainless Steel Wire to form.
4, composite damping elastic support according to claim 1 is characterized in that installation base plate (3) in the described annular resilient main body is to be formed by steel plate calendering or casting, and angle α generally is not more than 45 ° between itself and bottom plane.
5, composite damping elastic support according to claim 1 is characterized in that adopting in described annular resilient main body the Stainless Steel Wire twisted wire (5) that is no less than 8 equal lengths to arrange equidistantly along the length direction of metal grip block (7) and connecting plate (4) by bilateral symmetry formula mode.
6, composite damping elastic support according to claim 1, the two ends that it is characterized in that the Stainless Steel Wire twisted wire (5) in the described annular resilient main body connect firmly with metal grip block (6) and connecting plate (4) respectively, one end of every Steel Wire Strand twisted wire (5) adopts screw (6) to be clamped in the middle of two metal grip blocks (7), and the other end adopts embedding pressure mode to be fixed in the hole of connecting plate (4).
7, composite damping elastic support according to claim 1, it is characterized in that described annular resilient main body is to adopt screw (8) two groups of metal grip blocks (7) to be separately fixed at the right and left that base plate (3) is installed, thereby make Stainless Steel Wire twisted wire (5) form ring structure, constitute the annular resilient main body.
8, composite damping elastic support according to claim 1, the bottom circumferencial direction that it is characterized in that the damping cylinder in the described damping buffering mechanism evenly is provided with and is no less than 4 damping holes (13).
9, composite damping elastic support according to claim 1 is characterized in that snubber block (10) in the described damping buffering mechanism is through being molded into Y shape, V-arrangement, annular or square shape cross-sectional configuration shape by rubber-like or Stainless Steel Cloth class material.
10, composite damping elastic support according to claim 1 is characterized in that the cushion pad (11) in the described damping buffering mechanism places the damping cylinder bottom, and cushion pad is made by rubber type of material.
11, composite damping elastic support according to claim 1 is characterized in that described all hardwares except that snubber block (10) and cushion pad (11) make by stainless steel, High Strength Structural Steel or high-strength aluminum alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200336953U CN201202759Y (en) | 2008-04-01 | 2008-04-01 | Composite damping elastic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200336953U CN201202759Y (en) | 2008-04-01 | 2008-04-01 | Composite damping elastic support |
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| Publication Number | Publication Date |
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| CN201202759Y true CN201202759Y (en) | 2009-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200336953U Expired - Fee Related CN201202759Y (en) | 2008-04-01 | 2008-04-01 | Composite damping elastic support |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016590A (en) * | 2012-11-29 | 2013-04-03 | 上海海事大学 | Combined type steel wire rope vibration isolator for ship |
| CN103287548A (en) * | 2013-06-27 | 2013-09-11 | 无锡市宏源弹性器材有限公司 | Shock-resistant floating floor |
| CN103363011A (en) * | 2013-08-01 | 2013-10-23 | 上海海事大学 | Metal spring steel wire rope liquid damping vibration isolator |
| CN103708016A (en) * | 2013-12-30 | 2014-04-09 | 中国人民解放军92537部队 | Anti-impact device for switching equipment connecting modes |
-
2008
- 2008-04-01 CN CNU2008200336953U patent/CN201202759Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016590A (en) * | 2012-11-29 | 2013-04-03 | 上海海事大学 | Combined type steel wire rope vibration isolator for ship |
| CN103287548A (en) * | 2013-06-27 | 2013-09-11 | 无锡市宏源弹性器材有限公司 | Shock-resistant floating floor |
| CN103363011A (en) * | 2013-08-01 | 2013-10-23 | 上海海事大学 | Metal spring steel wire rope liquid damping vibration isolator |
| CN103708016A (en) * | 2013-12-30 | 2014-04-09 | 中国人民解放军92537部队 | Anti-impact device for switching equipment connecting modes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuxi Hongyuan Devflex Co.,Ltd. Assignor: Hu Nianfeng|Hu Qianping|Hu Xuefan Contract fulfillment period: 2009.1.15 to 2015.12.31 Contract record no.: 2009320000436 Denomination of utility model: Composite damping elastic support Granted publication date: 20090304 License type: Exclusive license Record date: 20090319 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.1.15 TO 2015.12.31; CHANGE OF CONTRACT Name of requester: WUXI HONGYUAN DERFLEX CO., LTD. Effective date: 20090319 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20110401 |