CN106438807A - Rod type solid particle friction damper - Google Patents
Rod type solid particle friction damper Download PDFInfo
- Publication number
- CN106438807A CN106438807A CN201610908312.1A CN201610908312A CN106438807A CN 106438807 A CN106438807 A CN 106438807A CN 201610908312 A CN201610908312 A CN 201610908312A CN 106438807 A CN106438807 A CN 106438807A
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder body
- solid particle
- chamber
- rod
- 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.)
- Pending
Links
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
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/01—Vibration-dampers; Shock-absorbers using friction between loose particles, e.g. sand
- F16F7/015—Vibration-dampers; Shock-absorbers using friction between loose particles, e.g. sand the particles being spherical, cylindrical or the like
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- 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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/04—Friction
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Vibration Dampers (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a rod type solid particle friction damper. The rod type solid particle friction damper comprises a cylinder body and a piston rod. End covers are arranged at the two ends of the cylinder body, and the two ends of the piston rod stretch out of the end covers. A piston body is fixed to the middle portion of the piston rod, the piston body is located in the cylinder body to divide the cylinder body into a first cavity and a second cavity, and multiple damping holes for communicating the first cavity with the second cavity are formed in the piston body; and the first cavity and the second cavity of the cylinder body are filled with multiple spherical solid particles, and when the piston body moves in the cylinder body, the solid particles can mutually flow in the first cavity and the second cavity through the damping holes. The solid particles are adopted as a damping medium, the solid particles have the beneficial effects of resisting high-temperature and low-temperature environments, no energy needs to be additionally added, and especially no oil leakage problem or aging problem exists; and the service life is long, and installation and maintenance are convenient.
Description
Technical field
The invention belongs to frame for movement anti-seismic technology field, and in particular to a kind of rod-type solid particle frcition damper.
Background technology
The world that we live is the world of one " vibration ".Vibration is ubiquitous, at all times, only the form of expression
Difference, power has size.In building industry, building structure easily be subject to earthquake, the excitation of wind shake or environment factor and produce vibration.
These vibrations make building construction or bridge structure produce larger response, and structural elements occurs destruction or fatigue and jeopardizes structure
Safety, the comfort level of people's life reduces even life and is seriously threatened.For a long time, with progress and the development of science,
Numerous scientific workers invent and create technology and the product of multinomial structural seismic control.
1) hydraulic damper：It is one kind of rod-type antivibrator, it is liquid oil by flowing of the damping hole in two cylinders
Damping force is provided.
2) sticky shearing type damper (VSD)：It is a kind of novel damping device for occurring in recent years, is characterized in using resistance
In Buddhist nun's device, slicing motion makes viscoid generation detrusion be transformed into thermal dissipation again so as to vibrational energy is passed to viscoid.
Sticky shearing type damper is for hydraulic damper, and the microvibration to 0.5mm level is more sensitive.
Above-mentioned hydraulic damper installation accuracy requires that relatively sternly, the silicone oil temperature effects as resisting medium are obvious, due to frequency
Numerous action, is susceptible to oil leak and permeability phenomenon, and therefore maintenance cost is of a relatively high.And hydraulic damper is to small amplitude motion
Insensitive.And sticky shearing type damper its damping force is easily acted upon by temperature changes in use, and working solution hold
Easy to leak.
Content of the invention
The purpose of the present invention be exactly in order to solve above-mentioned background technology presence deficiency, a kind of simple structure, installation are provided
Rod-type solid particle frcition damper easy to maintenance.
The technical solution used in the present invention is：A kind of rod-type solid particle frcition damper, including cylinder body and piston rod, institute
State cylinder body two ends and end cap is provided with, the piston rod two ends are stretched out from end cap, and the piston rod is fixedly arranged in the middle of piston body, piston body
First chamber and second chamber is divided in cylinder body, and piston body is provided with multiple connection first chambers and second chamber
Damping hole, is filled with some spherical solid particles in the first chamber and second chamber of cylinder body, and the piston body is in cylinder body
During interior motion, solid particle can be mutually flowed in first chamber and second chamber by damping hole.
Further, the damping hole includes that positive damping hole and anti-damping hole, the positive damping hole and anti-damping hole are
The bellmouth that one end diameter is big, other end diameter is little, the big one end of the positive damping bore dia little with anti-drag Buddhist nun's bore dia one
The corresponding arrangement in end.
Further, the plurality of damping hole is along piston body even circumferential arranged for interval.
Further, the solid particle is the metal ball with greater stiffness.
Further, also include the connecting cylinder of one end open, one end of the connecting cylinder opening is fixed with cylinder body one end
Connection, connecting cylinder is coaxially disposed with cylinder body, and piston rod stretches out the one end outside cylinder end caps and extend into inside connecting cylinder, the connection
The first union joint is provided with the outside of the cylinder other end；The piston rod extend into the one end inside connecting cylinder and is provided with piston pole cap, piston
Pole cap side wall is fitted and connected an inwall, and the piston rod other end is provided with the second union joint.
The present invention is using solid particle as resisting medium, solid particle mutual flow process in the two chambers of cylinder body
In, between phase mutual friction between solid particle, solid particle and damping hole wall, also produce between solid particle and cylinder wall and rub
Wipe, so as to provide damping force, consumed energy, simple structure, solid particle has the characteristics that high- and low-temperature resistance environment, and need not
, particularly there is no " oil leak " problem and problem of aging in external energy, long service life, install and easy to maintenance.
Description of the drawings
Fig. 1 is the generalized section of the present invention.
Fig. 2 is the close-up schematic view of the present invention.
The end view that Fig. 3 is coordinated with piston body for inventive piston bar.
In figure：1- cylinder body；2- piston rod；3- end cap；4- piston body；5- first chamber；6- second chamber；7- damping hole；
7.1- positive damping hole；The anti-damping hole of 7.2-；8- solid particle；9- connecting cylinder；10- piston pole cap；The first union joint of 11-；12-
Two union joints.
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, is easy to be well understood to this
Bright, but they do not constitute to the present invention and limit.
As Figure 1-3, the present invention includes cylinder body 1 and piston rod 2, and 1 two ends of the cylinder body are provided with end cap 3, the piston
2 two ends of bar are stretched out from end cap 3, and the piston rod 2 is fixedly arranged in the middle of piston body 4, and cylinder body 1 is 4 side wall patch of tubular structure, piston body
1 inwall of cylinder body is closed, piston body 4 is located in cylinder body 1 and first chamber 5 and second chamber 6 is divided into, and piston body 4 is provided with multiple
Connection first chamber 5 and the damping hole 7 of second chamber 6, if be filled with dry bulb in the first chamber 5 and second chamber 6 of cylinder body 1
The solid particle 8 of shape, the piston body 4 is in 1 interior motion of cylinder body, and solid particle 8 can pass through damping hole 7 in first chamber 5
With mutually flow in second chamber 6.
In such scheme, multiple damping holes 7 are along 4 even circumferential arranged for interval of piston body.Damping hole 7 includes positive damping hole
7.1 and anti-damping hole 7.2, the positive damping hole 7.1 and anti-damping hole 7.2 are the cone that one end diameter is big, other end diameter is little
Shape hole, the big one end of 7.1 diameter of positive damping hole one end little with 7.2 diameter of anti-damping hole is corresponding to be arranged.Work as positive damping
When one end that the big one end of 7.1 diameter of hole is connected with first chamber 5, diameter is little is connected with second chamber 6, then anti-damping hole 7.2
One end that the little one end of diameter is connected with first chamber 5, diameter is big is connected with second chamber 6.Positive damping hole 7.1 and anti-damping hole
7.2 design easy solid granule 8 is mutually flowed in first chamber 5 and second chamber 6, so as to providing damping force, consuming energy
Amount.
In such scheme, solid particle 8 is the larger other materials of the metal ball with greater stiffness, or rigidity
The spherical particle that makes, solid particle 8 can avoid fragmentation during friction energy-dissipating with greater stiffness.
In such scheme, also include the connecting cylinder 9 of one end open, one end that the connecting cylinder 9 is open is solid with 1 one end of cylinder body
Fixed connection, piston rod 2 stretches out the one end outside 1 end cap of cylinder body and extend into inside connecting cylinder 9, sets on the outside of 9 other end of the connecting cylinder
There is the first union joint 11.Piston rod 2 extend into the one end inside connecting cylinder 9 and is provided with piston pole cap 10,10 side wall patch of piston pole cap
9 inwall of connecting cylinder is closed, 2 other end of the piston rod is provided with the second union joint 12.By arranging offer of the connecting cylinder 9 for piston rod
Space, the first union joint 11 is fixedly connected with structure or component respectively with the second union joint 12, and piston body 2 is in cylinder body 1
During motion, the one end for being provided with the piston rod of piston pole cap is moved in connecting cylinder.
The other specification of frcition damper of the present invention, as void ratio (volume shared by solid particle in cylinder body and residual gap
The ratio of volume), Solids Particle Diameter, damping bore dia etc. be not changeless, can be according to actual product needs, by trying
Test determination.
The operation principle of the present invention is：After frcition damper is installed in structure or component, structure or component are produced and are shaken
When dynamic, piston body 4 is moved in cylinder body 1, and solid particle 8 is by the damping hole 7 on piston body in first chamber 5 and the second chamber
Mutually flow in room 6, between now phase mutual friction between solid particle, solid particle and damping hole wall, solid particle and cylinder body
Also friction is produced between wall, so as to provide damping force, consumed energy.
All parts of present invention composition rod-type metal ball frcition damper are all processed in factory and are manufactured.Install
When, the end cap of 1 one end of cylinder body of first screwing on, ending cover hole is temporarily blocked, a certain amount of solid particle 8 is poured into cylinder body, by piston body 4
It is fixed on piston rod 2, piston rod 2 is inserted in cylinder body 1, one end of piston rod 2 covers upper piston rod through the center hole of end cap
Cap 10, then installs connecting cylinder 9, and piston pole cap 10 plays a part of to support piston rod, moves in connecting cylinder 9.Again into cylinder body 1
Pour a certain amount of solid particle into, seal up the end cap of 1 other end of cylinder body.First union joint 11 and the second union joint are finally installed
12.So rod-type metal ball frcition damper is installed in factory, and it only has two nodes, after transporting to scene, by
One union joint and the second union joint are fixed on structure or component.
The content not being described in detail in this specification belongs to prior art known to professional and technical personnel in the field.
Claims (5)
1. a kind of rod-type solid particle frcition damper, it is characterised in that：Including cylinder body (1) and piston rod (2), the cylinder body
(1) two ends are provided with end cap (3), and piston rod (2) two ends are stretched out from end cap, and piston rod (2) are fixedly arranged in the middle of piston body
(4), piston body (4) is located in cylinder body (1) and is divided into first chamber (5) and second chamber (6), and piston body (4) is provided with many
Individual connection first chamber (5) and the damping hole (7) of second chamber (6), in the first chamber (5) and second chamber (6) of cylinder body
Some spherical solid particles (8) are filled with, piston body (4), in the interior motion of cylinder body (1), solid particle (8) can lead to
Overdamp hole (7) is mutually flowed in first chamber (5) and second chamber (6).
2. rod-type solid particle frcition damper according to claim 1, it is characterised in that：Damping hole (7) include
Positive damping hole (7.1) and anti-damping hole (7.2), positive damping hole (7.1) and anti-damping hole (7.2) be one end diameter big,
The little bellmouth of other end diameter, the big one end of positive damping hole (7.1) diameter one end little with anti-damping hole (7.2) diameter
Corresponding arrangement.
3. rod-type solid particle frcition damper according to claim 1, it is characterised in that：The plurality of damping hole (7)
Along piston body even circumferential arranged for interval.
4. rod-type solid particle frcition damper according to claim 1, it is characterised in that：Solid particle (8) are
Metal ball with greater stiffness.
5. rod-type solid particle frcition damper according to claim 1, it is characterised in that：Also include the company of one end open
Cylinder (9) is connect, one end that connecting cylinder (9) are open is fixedly connected with cylinder body (1) one end, and connecting cylinder is coaxially disposed with cylinder body, living
It is internal that one end that stopper rod (2) is stretched out outside cylinder end caps extend into connecting cylinder (9), is provided with the on the outside of connecting cylinder (9) other end
One union joint (11)；Piston rod (2) extend into the one end inside connecting cylinder and are provided with piston pole cap (10), piston pole cap (10)
Side wall is fitted and connected cylinder (9) inwall, and piston rod (2) other end is provided with the second union joint (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610908312.1A CN106438807A (en) | 2016-10-18 | 2016-10-18 | Rod type solid particle friction damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610908312.1A CN106438807A (en) | 2016-10-18 | 2016-10-18 | Rod type solid particle friction damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106438807A true CN106438807A (en) | 2017-02-22 |
Family
ID=58175349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610908312.1A Pending CN106438807A (en) | 2016-10-18 | 2016-10-18 | Rod type solid particle friction damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106438807A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107972012A (en) * | 2017-11-27 | 2018-05-01 | 常州大学 | A kind of vertical flexible concertina knee joint that can be used as robot leg |
| CN108691429A (en) * | 2018-06-29 | 2018-10-23 | 福州大学 | Assembling frame node anti-seismic strengthening device and its construction method |
| CN109112954A (en) * | 2018-09-29 | 2019-01-01 | 江苏工邦振控科技有限公司 | A kind of dual slope wind proof damper |
| CN109797880A (en) * | 2019-03-25 | 2019-05-24 | 重庆恩倍克科技有限公司 | A kind of dismountable building viscoelastic damper |
| CN111721160A (en) * | 2020-06-29 | 2020-09-29 | 北京理工大学 | Inter-ring buffer for multi-stage cylinder ejection launching device |
| CN112011132A (en) * | 2020-08-06 | 2020-12-01 | 云南煤化工应用技术研究院 | Solid medium damper |
| CN112360914A (en) * | 2020-10-22 | 2021-02-12 | 同济大学 | Fluid-solid coupling inertial container |
| CN112878525A (en) * | 2021-01-22 | 2021-06-01 | 厦门路桥工程设计院有限公司 | Self-resetting micro-particle spring damper |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4011929A (en) * | 1975-05-02 | 1977-03-15 | General Electric Company | Dampening device using a silicone rubber |
| CN202176028U (en) * | 2011-07-04 | 2012-03-28 | 株洲时代新材料科技股份有限公司 | Axially limited damper |
| CN102888903A (en) * | 2012-10-22 | 2013-01-23 | 株洲时代新材料科技股份有限公司 | Sleeved viscous damper capable of damping variable parameters and design method thereof |
| CN103266679A (en) * | 2013-05-23 | 2013-08-28 | 北京工业大学 | Piston type particle damper |
| CN203488620U (en) * | 2013-08-06 | 2014-03-19 | 宁波金城减震器有限公司 | Automobile shock absorber for enhancing stability |
| AU2013204747A1 (en) * | 2013-04-12 | 2014-10-30 | Shane Jonathon Crowther | A Piston for a Shock Absorber |
| CN104989764A (en) * | 2015-06-25 | 2015-10-21 | 上海赛弗工程减震技术有限公司 | Hole type viscous damper with hole length capable of being automatically adjusted |
| CN206190791U (en) * | 2016-10-18 | 2017-05-24 | 武汉东九永环工程技术有限公司 | Rod -type solid particle friction damper |
-
2016
- 2016-10-18 CN CN201610908312.1A patent/CN106438807A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4011929A (en) * | 1975-05-02 | 1977-03-15 | General Electric Company | Dampening device using a silicone rubber |
| CN202176028U (en) * | 2011-07-04 | 2012-03-28 | 株洲时代新材料科技股份有限公司 | Axially limited damper |
| CN102888903A (en) * | 2012-10-22 | 2013-01-23 | 株洲时代新材料科技股份有限公司 | Sleeved viscous damper capable of damping variable parameters and design method thereof |
| AU2013204747A1 (en) * | 2013-04-12 | 2014-10-30 | Shane Jonathon Crowther | A Piston for a Shock Absorber |
| CN103266679A (en) * | 2013-05-23 | 2013-08-28 | 北京工业大学 | Piston type particle damper |
| CN203488620U (en) * | 2013-08-06 | 2014-03-19 | 宁波金城减震器有限公司 | Automobile shock absorber for enhancing stability |
| CN104989764A (en) * | 2015-06-25 | 2015-10-21 | 上海赛弗工程减震技术有限公司 | Hole type viscous damper with hole length capable of being automatically adjusted |
| CN206190791U (en) * | 2016-10-18 | 2017-05-24 | 武汉东九永环工程技术有限公司 | Rod -type solid particle friction damper |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107972012A (en) * | 2017-11-27 | 2018-05-01 | 常州大学 | A kind of vertical flexible concertina knee joint that can be used as robot leg |
| CN107972012B (en) * | 2017-11-27 | 2020-11-10 | 常州大学 | Vertical flexible telescopic knee joint capable of being used as robot leg |
| CN108691429A (en) * | 2018-06-29 | 2018-10-23 | 福州大学 | Assembling frame node anti-seismic strengthening device and its construction method |
| CN108691429B (en) * | 2018-06-29 | 2023-10-13 | 福州大学 | Construction method of assembly type frame node anti-seismic reinforcing device |
| CN109112954A (en) * | 2018-09-29 | 2019-01-01 | 江苏工邦振控科技有限公司 | A kind of dual slope wind proof damper |
| CN109797880A (en) * | 2019-03-25 | 2019-05-24 | 重庆恩倍克科技有限公司 | A kind of dismountable building viscoelastic damper |
| CN109797880B (en) * | 2019-03-25 | 2020-08-25 | 安徽凯迪建业有限公司 | Detachable building viscoelastic damper |
| CN111721160A (en) * | 2020-06-29 | 2020-09-29 | 北京理工大学 | Inter-ring buffer for multi-stage cylinder ejection launching device |
| CN112011132A (en) * | 2020-08-06 | 2020-12-01 | 云南煤化工应用技术研究院 | Solid medium damper |
| CN112360914A (en) * | 2020-10-22 | 2021-02-12 | 同济大学 | Fluid-solid coupling inertial container |
| CN112878525A (en) * | 2021-01-22 | 2021-06-01 | 厦门路桥工程设计院有限公司 | Self-resetting micro-particle spring damper |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20170222 |