CN201606354U - Vibrating type vibration-damping muffler - Google Patents
Vibrating type vibration-damping muffler Download PDFInfo
- Publication number
- CN201606354U CN201606354U CN2010200320079U CN201020032007U CN201606354U CN 201606354 U CN201606354 U CN 201606354U CN 2010200320079 U CN2010200320079 U CN 2010200320079U CN 201020032007 U CN201020032007 U CN 201020032007U CN 201606354 U CN201606354 U CN 201606354U
- Authority
- CN
- China
- Prior art keywords
- vibration
- suppressor case
- inner chamber
- pipe joint
- springs
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Pipe Accessories (AREA)
Abstract
Disclosed is a vibrating type vibration-damping muffler, which comprises a tube joint (2). One side of the tube joint (2) is fixed with a muffler shell (3) of which the lower end of the inner chamber is connected with the tube chamber of the tube joint (2). The inner chamber of the muffler shell (3) is provided with a lower spring (6) and an upper spring (8). A vibrating body (7) is arranged between the lower spring (6) and the upper spring (8). An adjusting nut (4) which can regulate the compression rate of the spring is arranged on the inner chamber of the muffler shell (3) and threaded with the muffler shell (3). The utility model uses the coupling vibration of the liquid and the solid to effectively eliminate the vibration and the noise in the hydraulic system and improve the security of the system.
Description
Technical field
The utility model relates to a kind of hydraulic system vibration-absorbing and silencing device, and this device utilizes the coupled vibrations of liquid and solid, eliminates the pulsation energy in the hydraulic system, thereby reaches the effect of vibration damping and noise elimination.
Background technique
Hydraulic system is the core technology of all kinds of machinery.Along with hydraulics develops to high speed, high pressure and high-power direction, the vibration and noise in the hydraulic system becomes one of key factor that hinders the hydraulics progress and the security of the lives and property.
The vibration and noise of hydraulic system normally is harmful to very much.Vibration and noise that the hydraulic system pressure pulsation causes are propagated along pipeline, directly cause the stress fluctuation and the mechanical vibration of pipeline.U.S. scientific research personnel draws following rule in the process of the development F-15 of Mcdonnell company fighter: amplitude of pressure fluctuation will cause higher vibration stress greater than 10% o'clock of system works pressure, and delivery channel is destroyed rapidly; Amplitude of pressure fluctuation is in the 2.5-10% of system works pressure scope, and then the pipe clamp mat is easy to wear, may cause conduit to destroy, and the one-way valve in the pumping source loop is wearing and tearing easily also, influence the system works reliability.Both at home and abroad since hydraulic system to vibrate caused accident of common occurrence, as the F14 of the U.S. and China destroy seven and F-8 fighter etc. similarly accident all took place.
The internal structural characteristic of oil hydraulic pump has determined the flow of output not to be constant but to change, and the output flow of pump forms system pressure after running into the system load impedance, thereby determined the periodicity of output flow and pressure.
The noise-cancelling theory of structural vibration formula gas suppresses to provide brand-new thinking for the hydraulic system pulsation.But different with gas noise elimination wave filter is, the hydraulic filter structure also must adapt to the big flow of high pressure, stable state, low compressibility and the working condition requirement such as corrosion-resistant of hydraulic oil.
The model utility content
Technical problem to be solved in the utility model is, the volume that exists at employed resistance wave filter in the present hydraulic system is big, filter effect is poor, can't regulate resonant frequency with shortcomings such as adaptation condition variations, design a kind of structural vibration formula vibration-absorbing and silencing device, it utilizes the coupled vibrations of liquid-solid, effectively eliminates the vibration and the noise that produce in the hydraulic system.
The technical solution of the utility model is, described structural vibration formula vibration-absorbing and silencing device comprises pipe joint, and its structural feature is, fixedly installs suppressor case and this suppressor case inner chamber lower end in described pipe joint one side and is communicated with the tube chamber of described pipe joint; The suppressor case inner chamber is equipped with lower springs and upper springs, and between lower springs and upper springs, oscillating body is set, suppressor case inner chamber top is provided with the adjustment nut that can regulate described amount of spring compression, this adjustment nut with suppressor case to be threaded.
Below the utility model made further specify.
Referring to Fig. 1, structural vibration formula vibration-absorbing and silencing device described in the utility model comprises pipe joint 2, and its structural feature is, fixedly installs suppressor case 3 and this suppressor case 3 inner chamber lower ends in described pipe joint 2 one sides and is communicated with the tube chamber of described pipe joint 2; Suppressor case 3 inner chambers are equipped with lower springs 6 and upper springs 8, and between lower springs 6 and upper springs 8, oscillating body 7 is set, suppressor case 3 inner chamber tops are provided with the adjustment nut 4 that can regulate described amount of spring compression, this adjustment nut 4 with suppressor case 3 to be threaded.
Further, can between described upper springs 8 and adjustment nut 4, pressing plate 5 be set.
For reducing to impact, improve the working stability of spring 6 and oscillating body 7, be preferably on the oscillating body 7 damping hole is set.
The utility model is mainly used in the vibration damping and the noise reduction of hydraulic system, its design principle is, when an end hydraulic fluid port 1 of the hydraulic oil process pipe joint 2 with certain ripple frequency enters cavity volume, adjust nut 4 drive pressing plates 5 control springs 6 by regulating, 8 decrement, the ripple frequency that makes spring 6 and the vibration frequency of oscillating body 7 in suppressor case 3 and hydraulic oil is approximate or consistent and form resonance, reduce or eliminate pulsation energy in the hydraulic system with this, hydraulic oil behind vibration damping flows out from pipe joint 2 the other end hydraulic fluid ports, thereby reaches the effect of vibration and noise reduction of hydraulic system.
Said structure of the present utility model can be " quality+spring+damping " the lumped parameter vibration system that is made of the damping hole in spring, oscillating body and the oscillating body; As previously mentioned, adjust nut and pressing plate by regulating, can change the vibration frequency of lumped parameter vibration system, produce resonance when the hydraulic oil with certain ripple frequency will cause the lumped parameter vibration system that frequency is close with it during by pipe joint, reduce pulsation energy in the hydraulic system with this.
As known from the above, the utility model is a kind of structural vibration formula vibration-absorbing and silencing device, is applicable to that high-pressure hydraulic pressure pulsation suppresses, and is particularly suitable for the hydraulic system of a certain frequency band; It utilizes the coupled vibrations of liquid-solid, can effectively eliminate the vibration and the noise that produce in the hydraulic system, improves the Security of system.
Description of drawings
Fig. 1 is a kind of embodiment's of the utility model a structural representation.
In the drawings:
The 1-hydraulic fluid port, the 2-pipe joint, the 3-suppressor case,
4-adjusts nut, the 5-pressing plate, and the 6-lower springs,
The 7-oscillating body, the 8-upper springs.
Embodiment
As shown in Figure 1, described structural vibration formula vibration-absorbing and silencing device comprises pipe joint 2, its structural feature is, fixedly installs suppressor case 3 and this suppressor case 3 inner chamber lower ends in described pipe joint 2 one sides and is communicated with the tube chamber of described pipe joint 2, and pipe joint 2 is fixing with suppressor case 3 welding; Suppressor case 3 inner chambers are equipped with lower springs 6 and upper springs 8, and between lower springs 6 and upper springs 8, oscillating body 7 is set, suppressor case 3 inner chamber tops are provided with the adjustment nut 4 that can regulate described amount of spring compression, this adjustment nut 4 with suppressor case 3 inner chambers to be threaded.
Between described upper springs 8 and adjustment nut 4, pressing plate 5 is set.
On oscillating body 7, damping hole is set.
Can adopt big gap (as φ (D) H7/d6) to cooperate between described oscillating body 7 and suppressor case 3 inner chambers, can adopt little gap (as φ (D) H7/g6) to cooperate between pressing plate 5 and suppressor case 3 inner chambers.
Claims (3)
1. a structural vibration formula vibration-absorbing and silencing device comprises pipe joint (2), it is characterized in that, fixedly installs suppressor case (3) and this suppressor case (3) inner chamber lower end in described pipe joint (2) one sides and is communicated with the tube chamber of described pipe joint (2); Suppressor case (3) inner chamber is equipped with lower springs (6) and upper springs (8), and between lower springs (6) and upper springs (8), oscillating body (7) is set, suppressor case (3) inner chamber top is provided with the adjustment nut (4) that can regulate described amount of spring compression, and this same suppressor case of adjustment nut (4) (3) is to be threaded.
2. according to the described structural vibration formula of claim 1 vibration-absorbing and silencing device, it is characterized in that, between described upper springs (8) and adjustment nut (4), pressing plate (5) is set.
3. according to the described structural vibration formula of claim 1 vibration-absorbing and silencing device, it is characterized in that, on oscillating body (7), damping hole is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200320079U CN201606354U (en) | 2010-01-04 | 2010-01-04 | Vibrating type vibration-damping muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200320079U CN201606354U (en) | 2010-01-04 | 2010-01-04 | Vibrating type vibration-damping muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201606354U true CN201606354U (en) | 2010-10-13 |
Family
ID=42951060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200320079U Expired - Fee Related CN201606354U (en) | 2010-01-04 | 2010-01-04 | Vibrating type vibration-damping muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201606354U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103547813A (en) * | 2011-03-09 | 2014-01-29 | 舍弗勒技术股份两合公司 | Vibration damper for hydraulic systems |
| CN105889230A (en) * | 2016-05-12 | 2016-08-24 | 绍兴文理学院 | S-shaped cavity adaptive hydraulic filtering method for full-band working conditions |
| CN108443271A (en) * | 2018-05-30 | 2018-08-24 | 安徽工程大学 | A kind of fluid decompressor |
| CN110307216A (en) * | 2019-03-28 | 2019-10-08 | 潍柴动力股份有限公司 | Reduce the method for Noise of Hydraulic System and the noise reduction T-joint for hydraulic system |
-
2010
- 2010-01-04 CN CN2010200320079U patent/CN201606354U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103547813A (en) * | 2011-03-09 | 2014-01-29 | 舍弗勒技术股份两合公司 | Vibration damper for hydraulic systems |
| CN103547813B (en) * | 2011-03-09 | 2016-12-21 | 舍弗勒技术股份两合公司 | Vibroshock for hydraulic system |
| CN105889230A (en) * | 2016-05-12 | 2016-08-24 | 绍兴文理学院 | S-shaped cavity adaptive hydraulic filtering method for full-band working conditions |
| CN108443271A (en) * | 2018-05-30 | 2018-08-24 | 安徽工程大学 | A kind of fluid decompressor |
| CN110307216A (en) * | 2019-03-28 | 2019-10-08 | 潍柴动力股份有限公司 | Reduce the method for Noise of Hydraulic System and the noise reduction T-joint for hydraulic system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101614231B (en) | Broad-spectrum-filtration vibration-absorbing silencer of hydraulic system | |
| CN201606354U (en) | Vibrating type vibration-damping muffler | |
| CN203926233U (en) | The resonant hydraulic filter of a kind of electromagnetic type automated variable rigidity | |
| CN201496347U (en) | Wide frequency hydraulic system vibration-damping dissipative muffler | |
| CN105673987B (en) | A kind of flow pulsation attenuator of adjustable frequency | |
| CN204493974U (en) | Without cutting down water soot blower device in pipeline in negative pressure pumping plant | |
| CN104455901B (en) | Double resonance formula fluid pulsation attenuator | |
| CN201014133Y (en) | On-line noise deadener | |
| CN201606353U (en) | Hydraulic damper | |
| CN104632792A (en) | Pipe type variable-damping filter provided with multiple holes with different parameters and applied to opening of hydraulic pump | |
| CN201627781U (en) | Adjustable wide frequency damping muffler | |
| CN109945004B (en) | Fluid filtering silencer based on elastic energy storage principle | |
| CN203627185U (en) | Vibration reduction device for diaphragm pump outlet pipeline | |
| CN102434545A (en) | Liquid flow pulsation attenuator | |
| CN103968184B (en) | A kind of pipeline vibration noise suppressor structure | |
| CN210069241U (en) | Self-adaptive compound pressure pulsation attenuator | |
| CN110454637A (en) | A kind of pipeline damping control device based on variation rigidity dynamic vibration absorber | |
| CN203463213U (en) | Noise reduction device for high-pressure oil pump in automobile engine | |
| CN106704167B (en) | A kind of pressure fluctuation attenuating device for the adjustable damping frequency being integrated in plunger pump | |
| CN203836478U (en) | Pipeline vibration noise suppressor structure | |
| CN202007757U (en) | Double-layer damping and box type noise reduction device | |
| US20090155108A1 (en) | Hyperbolic horn for pulsation filter device used with gas compressor | |
| CN209977150U (en) | Vibration reduction structure of plunger pump | |
| CN202023733U (en) | Inlet flow pulsation vibration isolator of a high pressure plunger pump | |
| CN204402621U (en) | Motor tricycle baffler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20110104 |