CN101408237A - Hollow shafting core rod type damping vibration absorber - Google Patents
Hollow shafting core rod type damping vibration absorber Download PDFInfo
- Publication number
- CN101408237A CN101408237A CNA2008101558414A CN200810155841A CN101408237A CN 101408237 A CN101408237 A CN 101408237A CN A2008101558414 A CNA2008101558414 A CN A2008101558414A CN 200810155841 A CN200810155841 A CN 200810155841A CN 101408237 A CN101408237 A CN 101408237A
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- vibration
- layer
- damping
- shafting
- hollow
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- 238000013016 damping Methods 0.000 title claims abstract description 31
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 15
- 239000011230 binding agent Substances 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 6
- 230000035939 shock Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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- Vibration Prevention Devices (AREA)
Abstract
The invention relates to a hollow shafting mandril type damping shock absorber which belongs to the damping vibration reduction field. The absorber comprises a binder course (2), a viscoelasticity damping layer (3) and a damping mandril (4). The viscoelasticity damping layer is used for simultaneously controlling the torsional vibration and the longitudinal vibration of the hollow shafting. The damping mandril has the restriction function. The viscoelasticity damping layer can be expanded into multi-layer structure and is replaced by the composite structure consisting of a viscoelasticiy layer and an elastic restraint layer. The absorber integrates torsional vibration and longitudinal control devices, meanwhile, the absorber is arranged in the internal cavity of the shafting, which does not occupy outer space, and saves cost and space.
Description
Technical field
The present invention relates to a kind of hollow shafting core rod type damping vibration absorber, belong to the damping vibration attenuation technical field, relate in particular to hollow shafting torsional vibration, extensional vibration damping shock absorber.
Background technique
The axle system of the transmission system of large corporations such as boats and ships is easy to generate vibration owing to be subjected to the excitation of power equipment and propeller cavitation, and its vibration mode is multidirectional, promptly has torsional vibration, extensional vibration and transverse vibration simultaneously.And owing to occupy bigger ratio by the accident that torsional vibration produced, so it is more that people often pay close attention to torsional vibration under study for action, studied multiple torsional vibration damper, comprise various pendulum-type dampers, viscosity liquid formula damper and magnetic rheological liquid damper, the vibration damping equipment that its transverse vibration of control is also arranged simultaneously, the described Shaft damper of picture patent CN 1620563A, and because the complexity of the vibration damping equipment of extensional vibration, generally seldom relate to, and axle is that various vibration control apparatus all is the outsides that place axle system at present, need take additional space, simultaneously because the device of control different direction vibration is the branchs research of coming, strengthened and studied and the cost of manufacturing.
Summary of the invention
The object of the invention is to remedy the deficiency of existing shafting vibration vibration damper, a kind of novel shafting vibration Comprehensive Control vibration damper is provided, this vibration damper can reduce simultaneously axle system two to vibration, promptly vibration damper not only can reduce its torsional vibration but also can reduce its extensional vibration.Drive line according to large corporations such as boats and ships is the characteristics of hollow-core construction simultaneously, vibration damper is arranged in the cavity of axle, does not take additional space.
A kind of hollow shafting core rod type damping vibration absorber, be used for the simultaneously torsional vibration and the extensional vibration of Control Shaft system, it is characterized in that: it comprises the binder course that is installed on the hollow shaft internal cavities, sticks on the visco-elastic damping layer on the binder course, and the constraint plug that places the hollow shaft axle center.
It is multi-layer structure that visco-elastic damping layer can be considered to expand, and the composite structure of being made up of viscoelastic layer and elastic restraint layer replaces.
Visco-elastic damping layer between binder course and the constraint plug all is in effective shearing condition when torsional vibration of shafting and extensional vibration, can the dissipative system energy.Damping conductor bar type vibration damper of the present invention unites two into one torsional vibration control device and extensional vibration control gear, not only torsional vibration but also its extensional vibration of may command of controllable shaft system, simultaneously vibration damper is placed in the cavity of hollow shafting, promptly provide cost savings and saved the space.
Description of drawings
Fig. 1 is the axial view of hollow shafting core rod type damping vibration absorber.
Fig. 2 is the axis profile figure of hollow shafting core rod type damping vibration absorber.
Each component names is among the figure: 1. hollow shaft 2. binder courses 3. visco-elastic damping layers 4. retrain plugs.
Embodiment
As shown in Figure 1, 2, hollow shafting core rod type damping vibration absorber of the present invention, it comprises the columnar binder course 2 that is installed on an internal cavities, also comprise columned constraint plug 4, columnar visco-elastic damping layer 3 attaches between binder course and the plug, and wherein according to shown in the figure, the length of binder course is longer slightly than viscoelastic layer and plug, purpose is in order to process connected component on the part of stretching, to make vibration damper be fixed on axle inside more easily.
When axle system twisted vibration, circumferential shear deformation took place in visco-elastic damping layer under the constraint of binder course and constraint plug, and dissipation energy plays the effect that reduces torsional vibration; Axial shear deformation takes place in visco-elastic damping layer under the constraint of binder course and constraint plug when extensional vibration takes place in axle system, and dissipation energy plays the effect that reduces extensional vibration.
It is multi-layer structure that visco-elastic damping layer 3 can be considered to expand, and the composite structure of being made up of viscoelastic layer and elastic restraint layer replaces; Can change its number of plies as required, be designed to multi-layer structure.
Claims (3)
1, a kind of hollow shafting core rod type damping vibration absorber, be used for controlling simultaneously hollow shafting torsional vibration and extensional vibration, it is characterized in that: it comprises the columnar binder course (2) that is installed on the hollow shaft internal cavities, columned constraint plug (4), and attach to binder course and the visco-elastic damping layer (3) of constraint between the plug.
2, a kind of hollow shafting core rod type damping vibration absorber is used for controlling simultaneously hollow shafting torsional vibration and extensional vibration.It is characterized in that: it comprises the columnar binder course (2) that is installed on the hollow shaft internal cavities, columned constraint plug (4), and attaching to binder course and elasticity--the Viscoelastic Composite structure of constraint between the plug, this composite structure is made up of viscoelastic layer (5) and elastic restraint layer (6).
3, according to the hollow shafting core rod type damping vibration absorber described in the claim 2, it is characterized in that: the viscoelastic layer of described elasticity-Viscoelastic Composite structure and the number of plies of elastic restraint layer can design arbitrarily as required.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101558414A CN101408237A (en) | 2008-10-10 | 2008-10-10 | Hollow shafting core rod type damping vibration absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101558414A CN101408237A (en) | 2008-10-10 | 2008-10-10 | Hollow shafting core rod type damping vibration absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101408237A true CN101408237A (en) | 2009-04-15 |
Family
ID=40571381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101558414A Pending CN101408237A (en) | 2008-10-10 | 2008-10-10 | Hollow shafting core rod type damping vibration absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101408237A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052387A (en) * | 2011-01-07 | 2011-05-11 | 富奥汽车零部件股份有限公司 | Vibration reduction structure of transmission shaft assembly |
| CN103671699A (en) * | 2013-12-23 | 2014-03-26 | 江苏科技大学 | Inbuilt damping device for hollow shaft |
| CN103727168A (en) * | 2013-11-18 | 2014-04-16 | 安徽淮化股份有限公司 | Shaft body energy absorber |
| CN104279264A (en) * | 2014-09-18 | 2015-01-14 | 亚新科噪声与振动技术（安徽）有限公司 | Transmission shaft vibration absorber |
| CN104696432A (en) * | 2015-02-13 | 2015-06-10 | 柳州金鸿橡塑有限公司 | Built-in broadband torsion damper |
| CN105422732A (en) * | 2015-12-09 | 2016-03-23 | 北京工业大学 | Composite damping vibration attenuation expansion rod structure for thin and long rotary shaft |
| CN109933916A (en) * | 2019-03-18 | 2019-06-25 | 山东大学 | Method and system based on shafting longitudinal vibration response measurement inverting propeller longitudinal pumping |
-
2008
- 2008-10-10 CN CNA2008101558414A patent/CN101408237A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052387A (en) * | 2011-01-07 | 2011-05-11 | 富奥汽车零部件股份有限公司 | Vibration reduction structure of transmission shaft assembly |
| CN103727168A (en) * | 2013-11-18 | 2014-04-16 | 安徽淮化股份有限公司 | Shaft body energy absorber |
| CN103671699A (en) * | 2013-12-23 | 2014-03-26 | 江苏科技大学 | Inbuilt damping device for hollow shaft |
| CN103671699B (en) * | 2013-12-23 | 2015-09-02 | 江苏科技大学 | The built-in vibration damping equipment of a kind of hollow shaft |
| CN104279264A (en) * | 2014-09-18 | 2015-01-14 | 亚新科噪声与振动技术（安徽）有限公司 | Transmission shaft vibration absorber |
| CN104696432A (en) * | 2015-02-13 | 2015-06-10 | 柳州金鸿橡塑有限公司 | Built-in broadband torsion damper |
| CN105422732A (en) * | 2015-12-09 | 2016-03-23 | 北京工业大学 | Composite damping vibration attenuation expansion rod structure for thin and long rotary shaft |
| CN105422732B (en) * | 2015-12-09 | 2018-12-07 | 北京工业大学 | Stick structure that a kind of composite damping vibration damping for elongated rotating shaft is swollen |
| CN109933916A (en) * | 2019-03-18 | 2019-06-25 | 山东大学 | Method and system based on shafting longitudinal vibration response measurement inverting propeller longitudinal pumping |
| CN109933916B (en) * | 2019-03-18 | 2020-07-31 | 山东大学 | Method and system for inverting propeller longitudinal excitation based on shafting longitudinal vibration response measurement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090415 |