CN201982565U - Fluid power air damping buffer - Google Patents
Fluid power air damping buffer Download PDFInfo
- Publication number
- CN201982565U CN201982565U CN2010202814196U CN201020281419U CN201982565U CN 201982565 U CN201982565 U CN 201982565U CN 2010202814196 U CN2010202814196 U CN 2010202814196U CN 201020281419 U CN201020281419 U CN 201020281419U CN 201982565 U CN201982565 U CN 201982565U
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- piston
- piston rod
- oil cylinder
- vibration
- fluid power
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- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to a kind of fluid power air damping buffer, and the vibration that is used for all kinds of electromechanical equipments and facility basis is isolated with impact.The air bag that is connected in piston rod one end places and is full of the oil cylinder of deciding volume fluid, and the other end of piston rod is connected to gas charging valve and dunnage, and pressurized air is by the initial internal pressure in the gas charging valve realization air bag, and piston rod promotes the relative oil cylinder of piston and moves up and down.When extraneous vibration or ballistic motion energy drove piston motion by dunnage and piston rod, the intake of extraneous vibration or impact was converted into the pressure energy of sealing gas-liquid in the oil cylinder, reduces the vibration and the shock response of system.Some damping holes on the piston are used for the consumption systems kinergety, change the system peak amplification factor.Bearing capacity is big, and long service life is applicable to the safe operation of macro-energy vibration of protection low frequency and impact system.
Description
Technical field
The utility model relates to a kind of fluid power air damping buffer, and the vibration that is used for all kinds of electromechanical equipments and facility basis is isolated with impact.
Background technique
As low frequency macro-energy anti-vibration and shock components and parts, require under the big displacement operating mode of low frequency, to realize low system frequency as far as possible and under the system peak response condition, realize lower power amplification factor.This be current all kinds of electromechanical equipment facility especially the demanding key project facility of antidetonation pooling feature urgently wish the problem that solves.
In the existing anti-vibration and shock product, mainly contain rubber-like, pneumatic spring class, wire rope class and wire spring series products.The rubber-based products impact strength is low, and environmental suitability is poor, and the life-span is short; General pneumatic spring series products is because the air bag inside and outside differential pressure is big, the gas seal difficulty, and manufacture difficulty is big, air bag easy aging cracking and damaging in air; Wire rope series products easy unstability and creep is arranged under lower system frequency; General wire spring series products is easy to unstability under lower system frequency, damping is very little and overall volume is big.
The model utility content
The purpose of this utility model is to overcome above-mentioned deficiency, provide a kind of realization system easily hang down natural frequency, reasonably strong, slow (resist), the structural stability reliable anti-vibration and shock components and parts big of damping characteristic, environmental suitability towards intensity with satisfy system at macro-energy, low frequency, big displacement is imported under the operating mode has the good anti-vibration and shock effect and the usability of lasting stability.
Main solution of the present utility model is achieved in that
Air bag and piston rod with initial internal pressure link, place and be full of the oil cylinder of deciding volume fluid by the piston and the air bag of scyewed joint on piston rod, radial symmetric is distributed with some damping holes on the piston, is symmetrically arranged with 4～6 tapered plug holes simultaneously and disposes tapered plug; Piston can pump along oil cylinder.The other end at piston rod is connected to gas charging valve, regulates the initial internal pressure of air bag by gas charging valve.Piston rod adopts the v-ring combination and connects the sealing that realizes the oil cylinder inner fluid by end cap, gland and sealing gasket and by threaded fastener.The external load that acts on the dunnage is passed on in-oil cylinder fluid and the air bag by piston rod, piston, has constituted the utility model fluid power air damping buffer.
Pressurized air enters air bag by gas charging valve, realizes the initial internal pressure of air bag.Under given external load state, air bag is in internal and external pressure balance state (being original state), and the natural frequency that at this moment the utlity model has setting (is generally 1.5～2HZ); Regulate the variable original state of initial internal pressure of air bag by gas charging valve, thereby regulate bearing capacity of the present utility model and dynamic performance.
When acting on the extraneous vibration on the dunnage or impacting, promote the relative oil cylinder of piston and move up and down by the piston rod input.Because the incompressibility of fluid, the pressure of deciding volume fluid in the oil cylinder is changed and force that the interior pressure and the volume of gas changes in the air bag, the intake that makes vibration or impact is converted into the pressure energy of sealing gas-liquid, thereby reduce the vibration or the shock response of oil cylinder, protected the supporting basis of oil cylinder effectively; Equally, when vibrations take place on supporting of the present utility model basis (as earthquake etc.), oil cylinder produces dynamic displacement, oil cylinder inner carrier and oil cylinder produce relative movement up and down, the same with aforementioned principles, the external shock energy is converted into the pressure energy of gas-liquid in the oil cylinder, thereby reduces the response of basis vibrations to carrying object on the dunnage.Some damping holes on the piston can consumption systems the relative movement energy, improve the peak response characteristic of system, reduce the power amplification factor.4～6 tapered plugs and the taper hole that are provided with on the piston can change the stress characteristic that piston moves up and down in oil cylinder.When the relative oil cylinder of piston was descending, tapered plug was opened the taper hole passage by jack-up under the oil pressure differential pressure action up and down at piston, and the resistance of descent of piston reduces, and extraneous kinergety can be converted to the gas-liquid pressure energy of cylinder cavity rapidly; When the relative oil cylinder of piston was up, tapered plug was landed in the taper hole, and the fluid of piston upper chamber can only flow to cavity of resorption by damping hole, has blocked the speed uplink of piston, the response time that has delayed vibration or impacted, thus reduce vibration or shock response;
The utility model compared with prior art has the following advantages:
The characteristic that the utlity model has the conversion of low natural frequency, macro-energy and regulate damping automatically, minimum feasible system natural frequency I.5HZ below.No matter be, all can adopt the utility model to improve vibration isolation, antidetonation, buffering and the anti-impact effect of system to the passive isolation of system-based low frequency external excitation or to the active isolation of system self low-frequency excitation.Bearing capacity is big, compact structure, and long service life, system stability is reliable, and is easy for installation, is applicable to the safe operation of macro-energy vibration of protection low frequency and impact system.
Description of drawings
Fig. 1 is the general assembly drawing of the utility model fluid power air damping buffer;
Fig. 2, Fig. 3 are respectively the plan view and the plan view of the piston structure in the utility model;
Fig. 4 is the piston rod construction schematic representation in the utility model;
Embodiment
Embodiment during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:
As shown in Figure 1, the utility model is made up of parts such as oil cylinder 1, air bag 2, piston 3, tapered plug 4, end cap 5, v-ring combination 6, gland 7, piston rod 8, gas charging valve 9, dunnage 10, sealing gasket 11 and some threaded fasteners.The air flue of pressurized air in gas charging valve 9, piston rod 8 enters air bag 2, under gas initial volume, pressure and the external load set, the utlity model has the natural frequency of setting.Different initial pressures can be realized different bearing capacitys in the air bag.Piston 3 is along with piston rod 8 is done vertical relative movement in the long-pending oil cylinder 1 of fixed oil liquid, and the upper and lower chamber of piston fluid is by some damping holes and taper hole circulation on the piston; Piston moves up and down the gas-liquid total measurement (volume) that can cause in the oil cylinder to be changed, because the incompressibility of fluid will change the gaseous state in the air bag, thereby changes the gaseous state in the air bag.Piston rod 8 adopts v-ring combination 6 also by end cap 5, gland 7 and sealing gasket 11 and by the sealing of threaded fastener realization to the oil cylinder inner fluid.The installation that support plate 10 is used for external bearer connects.Oil cylinder 1, end cap 5, gland 7 and dunnage 10 can adopt structural steel or high-strength nylon material to make.
Shown in accompanying drawing 2, accompanying drawing 3, the footpath of piston 3 upwards is symmetrically distributed with some damping holes, and radial symmetric is provided with 4～6 tapered plug holes and disposes tapered plug 4 simultaneously, is used for the consumption systems kinergety, changes system peak response amplification factor.When the relative oil cylinder of piston was descending, tapered plug was opened the taper hole passage by jack-up under the oil pressure differential pressure action up and down at piston, and the resistance of descent of piston reduces, and extraneous kinergety can be converted to the gas-liquid pressure energy of cylinder cavity rapidly; When the relative oil cylinder of piston was up, tapered plug was landed in the taper hole, and the fluid of piston upper chamber can only flow to cavity of resorption by damping hole, has blocked the speed uplink of piston, the response time that has delayed vibration or impacted, thus reduce vibration or shock response.
As shown in Figure 4, piston rod 8 all adopts the screw fit mode to connect with piston 3 and dunnage 10, in the piston rod 8 gas channel is set, communicated air bags 2 inner chambers and gas charging valve 9.
Claims (5)
1. fluid power air damping buffer, by oil cylinder (1), air bag (2), piston (3), tapered plug (4), end cap (5), v-ring combination (6), gland (7), piston rod (8), gas charging valve (9), dunnage (10), parts such as sealing gasket (11) and some threaded fasteners are formed, the air bag (2) that it is characterized in that being connected in piston rod (8) one ends places and is full of the oil cylinder (1) of deciding volume fluid, the other end of piston rod (8) is connected to gas charging valve (9) and dunnage (10), pressurized air is realized the initial internal pressure that air bag (2) is interior by gas charging valve (9), and piston rod (8) promotes the relative oil cylinder (1) of piston (3) and moves up and down.
2. fluid power air damping buffer according to claim 1 is characterized in that the footpath of described piston (3) upwards is symmetrically distributed with some damping holes, and radial symmetric is provided with 4～6 tapered plug holes and disposes tapered plug (4) simultaneously.
3. fluid power air damping buffer according to claim 1 is characterized in that described piston rod (8) and piston (3) adopt the screw fit mode to connect, and piston rod is provided with gas channel in (8), communicated air bags (2) inner chamber and gas charging valve (9).
4. fluid power air damping buffer according to claim 1, the inner chamber fluid that it is characterized in that described oil cylinder (1) and extraneous sealing are to connect by one group of v-ring combination (6) and sealing gasket (11) and by threaded fastener to realize.
5. fluid power air damping buffer according to claim 1 is characterized in that described oil cylinder (1), end cap (5), gland (7), dunnage (10) can adopt structural steel or high-strength nylon material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202814196U CN201982565U (en) | 2010-07-23 | 2010-07-23 | Fluid power air damping buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202814196U CN201982565U (en) | 2010-07-23 | 2010-07-23 | Fluid power air damping buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201982565U true CN201982565U (en) | 2011-09-21 |
Family
ID=44610027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202814196U Expired - Lifetime CN201982565U (en) | 2010-07-23 | 2010-07-23 | Fluid power air damping buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201982565U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797785A (en) * | 2012-09-04 | 2012-11-28 | 谢宁 | Single-rod air bag type magnetorheological damper |
| CN102829122A (en) * | 2012-09-20 | 2012-12-19 | 谭晓婧 | Single-output-rod annular air bag vertical damper |
| CN103291802A (en) * | 2013-06-27 | 2013-09-11 | 无锡市宏源弹性器材有限公司 | Air spring buffer |
| CN103291811A (en) * | 2013-06-27 | 2013-09-11 | 无锡市宏源弹性器材有限公司 | Damper |
| 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 |
| CN107076344A (en) * | 2013-12-16 | 2017-08-18 | 年轻工程与制造公司 | Pouch surge suppressor |
-
2010
- 2010-07-23 CN CN2010202814196U patent/CN201982565U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797785A (en) * | 2012-09-04 | 2012-11-28 | 谢宁 | Single-rod air bag type magnetorheological damper |
| CN102829122A (en) * | 2012-09-20 | 2012-12-19 | 谭晓婧 | Single-output-rod annular air bag vertical damper |
| CN103291802A (en) * | 2013-06-27 | 2013-09-11 | 无锡市宏源弹性器材有限公司 | Air spring buffer |
| CN103291811A (en) * | 2013-06-27 | 2013-09-11 | 无锡市宏源弹性器材有限公司 | Damper |
| 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 |
| CN107076344A (en) * | 2013-12-16 | 2017-08-18 | 年轻工程与制造公司 | Pouch surge suppressor |
| CN107076344B (en) * | 2013-12-16 | 2020-08-11 | 年轻工程与制造公司 | Bag surge suppressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110921 |
|
| CX01 | Expiry of patent term |