CN109654152A - A kind of big stroke compact type bilayer viscous damper - Google Patents
A kind of big stroke compact type bilayer viscous damper Download PDFInfo
- Publication number
- CN109654152A CN109654152A CN201910070686.4A CN201910070686A CN109654152A CN 109654152 A CN109654152 A CN 109654152A CN 201910070686 A CN201910070686 A CN 201910070686A CN 109654152 A CN109654152 A CN 109654152A
- Authority
- CN
- China
- Prior art keywords
- piston
- inner cylinder
- end cap
- cylinder
- oil
- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/22—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with one or more cylinders each having a single working space closed by a piston or plunger
-
- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
-
- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3221—Constructional features of piston rods
-
- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The present invention relates to a kind of big stroke compact type bilayer viscous dampers, including inner cylinder, first end cover and second end cover are separately mounted to the left and right ends of inner cylinder, First piston bar passes through first end cover and installs to be had in oil cylinder to interior, first piston is fixedly connected in First piston bar to be had in oil cylinder positioned at interior, and the second damping oil is located in inner cylinder；For circular ring shape, it is fixed on inner cylinder outer wall second piston, third end cap and the 4th end cap are also circular ring shape and are respectively fixedly connected in the outer oil cylinder left and right ends of hollow cylinder, third end cap and the 4th end cap are respectively sleeved on inner cylinder outer wall, and the first damping oil is between inner cylinder and outer oil cylinder.The present apparatus is by the setting of two-stage damping structure, so that device occupies small to space, damping force is bigger, while increasing the stroke of damper.
Description
Technical field
The present invention relates to damper technique fields, and in particular to a kind of big stroke compact type bilayer viscous damper.
Background technique
Viscous damper is acted on using the viscous damping of fluid flowing using fluid as working media, is extended shock loading
Action time, and the mechanical energy that by load shock when generates is converted into the pressure energy and thermal energy of fluid, to absorb and convert
The energy of shock loading, and then by the accurate off-position of the faster mechanical part of movement velocity, and reduce mechanical part and caused by impacting
Vibration and noise, reduce mechanical accident, the service life of prolonged mechanical component.Therefore, viscous damper is in engineering machinery, life
Producing the fields such as equipment, harbour machinery, athletic equipment has wide application.
Viscous damper needs to keep higher damping force, while also needing sufficiently large under the requirement of some special designings
Stroke, existing damper is not able to satisfy the demand.
In view of the above shortcomings, the designer, is actively subject to research and innovation, to found a kind of new structural big row
Journey compact type bilayer viscous damper makes it with more the utility value in industry.
Summary of the invention
In order to solve the above technical problems, the object of the present invention is to provide a kind of big stroke compact type bilayer viscous dampings
Device.
Technical scheme is as follows:
A kind of big stroke compact type bilayer viscous damper, it is characterised in that:
Including first end cover (2), First piston bar (3), first piston (4), second piston (5), inner cylinder (6), outer oil
Cylinder (7), second end cover (8), the first damping oil (11), the second damping oil (12), third end cap (13), the 4th end cap (14)；
Wherein the inner cylinder (6) is hollow cylinder, and the first end cover (2) and second end cover (8) are separately mounted to
The left and right ends of the inner cylinder (6), the First piston bar (3), which passes through the first end cover (2) and installs to described, interior to be had
In oil cylinder (6), the first piston (4), which is fixedly connected on to be located in described on the First piston bar (3), to be had in oil cylinder (6),
Second damping oil (12) is located in the inner cylinder (1)；
The second piston (5) be circular ring shape its be fixed on the inner cylinder (6) outer wall, the third end cap (13) and
4th end cap (14) also for circular ring shape and is respectively fixedly connected in outer oil cylinder (7) left and right ends of hollow cylinder, described
Third end cap (14) and the 4th end cap (15) are respectively sleeved on the inner cylinder (6) outer wall, the first damping oil (11) position
Between the inner cylinder (6) and outer oil cylinder (7)；
The viscosity of first damping oil (13) is greater than the viscosity of second damping oil (14)；
Through-hole (41) are provided in the first piston (4)/second piston (5).
Further, the through-hole (41) is linear, is additionally provided in the first piston (4)/second piston (5) logical
Hole size adjusting device, the regulating device include being located in the first piston (4)/second piston (5) and close to described logical
The thread groove (42) in hole (41), the thread groove (42) is interior to be equipped with screw (43), further includes a round gear with mounting hole
The screw rod of plate (44), the screw (43) passes through the mounting hole and is installed in the thread groove (42).
Further, the diameter of the circular baffle plate (44) is greater than the diameter of the through-hole.
Further, one end of the First piston bar (3) is fixedly connected with the first lifting lug (1).
Further, the 4th end cap (14) is also connected with external module (9), the outer wall of the external module (9)
It is connected with the second lifting lug (10).
According to the above aspect of the present invention, the present invention has at least the following advantages:
(1) present apparatus is by the setting of two-stage damping structure, so that device occupies small to space, damping force is bigger；
(2) piston rod that the present apparatus is damped by the oil cylinder that level-one damps as second level reduces the use of component, increases
The stroke of damper, has saved cost；
(3) size of present apparatus through-hole can be adjusted, and selection through-hole can be carried out according to the difference of applying working condition
Size.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention and the accompanying drawings.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiment of the invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the cross-sectional view of inventive piston；
Fig. 3 is the side view of inventive piston；
In figure: the first lifting lug of 1-；2- first end cover；3- First piston bar；4- first piston；41- through-hole；42- thread groove；
43- screw；44- baffle；5- second piston；6- inner cylinder；The outer oil cylinder of 7-；8- second end cover；9- external module；10- second is hung
Ear；The first damping oil of 11-；The second damping oil of 12-；13- third end cap；The 4th end cap of 14-.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Referring to Fig. 1 and Fig. 2, a kind of big stroke compact type bilayer viscous damper of a preferred embodiment of the present invention,
Including first end cover 2, First piston bar 3, first piston 4, second piston 5, inner cylinder 6, outer oil cylinder 7, second end cover 8, first
Damping oil 11, the second damping oil 12, third end cap 13, the 4th end cap 14；
Wherein inner cylinder 6 is hollow cylinder, and first end cover 2 and second end cover 8 are separately mounted to the left and right two of inner cylinder 6
It holds, the metal material that the material selection of inner cylinder 6 has structural strength relatively good, is respectively provided in first end cover 2 and second end cover 8
There is mounting hole, First piston bar 3 passes through first end cover 2 and second end cover 8 and installs to be had in oil cylinder 6 to interior, and First piston bar 3 is worn
Crossing first end cover 2 and installing has in oil cylinder 6 to interior, and first piston 4, which is fixedly connected in First piston bar 3, has oil cylinder 6 positioned at interior
Interior, the second damping oil 12 is located in inner cylinder 1；Through-hole 41 is provided on first piston 4, when the first lifting lug 1 receives pulling force
It waits, First piston bar 3 drives first piston 4 to be displaced outwardly, and the second damping oil 12 can be flowed by the through-hole 41 on first piston 4
Piston another side.
For circular ring shape, it is fixed on 6 outer wall of inner cylinder second piston 5, is equivalent to the piston that inner cylinder 6 is second piston 5
Bar, third end cap 13 and the 4th end cap 14 also for circular ring shape and are respectively fixedly connected with outer oil cylinder 7 or so two in hollow cylinder
End, third end cap 14 and the 4th end cap 15 be respectively sleeved on 6 outer wall of inner cylinder, and the first damping oil 11 is located at inner cylinder 6 and outside
Between oil cylinder 7；Inner cylinder 6 can be by driving second piston 5 to move to third end cap 13 by external force, 11 meeting of the first damping oil
The another side of piston is flowed by the through-hole in second piston 5.
The viscosity of first damping oil 13 is greater than the viscosity of the second damping oil 14；
Through-hole 41 is provided in 4/ second piston 5 of first piston.
Through-hole 41 is linear, and hole size regulating device is additionally provided in 4/ second piston 5 of first piston, adjusts dress
It sets including being located at the thread groove 42 in 4/ second piston 5 of first piston and close to through-hole 41, screw 43 is installed in thread groove 42,
It further include a circular baffle plate 44 for having mounting hole, the screw rod of screw 43 passes through mounting hole and is installed in thread groove 42.Pass through
It adjusts circular baffle plate 44 and blocks the of different sizes of through-hole 41, the size of through-hole 41 can be changed, and then change the damping force of piston.
The diameter of circular baffle plate 44 is greater than the diameter of through-hole.
One end of First piston bar 3 is fixedly connected with the first lifting lug 1.
- the four end cap 14 is also connected with external module 9, and the outer wall of external module 9 is connected with the second lifting lug 10.
Working principle of the present invention is as follows:
For first lifting lug 1 by external force, First piston bar 3 drives first piston 4 mobile to 2 direction of first end cover, works as external force
First piston 4 is continued growing to continue to move to until 4 moving limit position of first piston；The at this time external force that the first lifting lug 1 receives
Increase, inner cylinder 6 will be displaced outwardly, and then drive second piston 5 mobile, when second piston 5 is close to third end cap 13
It waits, has arrived extreme position, stop movement, third end cap 13 can also provide limit function.The setting damped by two-stage, can
Much increase the stroke of damper, while different damping forces being provided.
The present invention has at least the following advantages:
(1) present apparatus is by the setting of two-stage damping structure, so that device occupies small to space, damping force is bigger,；
(2) piston rod that the present apparatus is damped by the oil cylinder that level-one damps as second level reduces the use of component, increases
The stroke of damper, has saved cost；
(3) size of present apparatus through-hole can be adjusted, and selection through-hole can be carried out according to the difference of applying working condition
Size.
The above is only a preferred embodiment of the present invention, it is not intended to restrict the invention, it is noted that for this skill
For the those of ordinary skill in art field, without departing from the technical principles of the invention, can also make it is several improvement and
Modification, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of big stroke compact type bilayer viscous damper, it is characterised in that:
Including first end cover (2), First piston bar (3), first piston (4), second piston (5), inner cylinder (6), outer oil cylinder
(7), second end cover (8), the first damping oil (11), the second damping oil (12), third end cap (13), the 4th end cap (14)；
Wherein the inner cylinder (6) is hollow cylinder, and the first end cover (2) and second end cover (8) are separately mounted to described
The left and right ends of inner cylinder (6), the First piston bar (3), which passes through the first end cover (2) and installs to described, interior has oil cylinder
(6) in, the first piston (4), which is fixedly connected on to be located in described on the First piston bar (3), to be had in oil cylinder (6), described
Second damping oil (12) is located in the inner cylinder (1)；
For circular ring shape, it is fixed on the inner cylinder (6) outer wall the second piston (5), the third end cap (13) and the 4th
End cap (14) also for circular ring shape and is respectively fixedly connected in outer oil cylinder (7) left and right ends of hollow cylinder, the third
End cap (14) and the 4th end cap (15) are respectively sleeved on the inner cylinder (6) outer wall, and first damping oil (11) is located at institute
It states between inner cylinder (6) and outer oil cylinder (7)；
The viscosity of first damping oil (13) is greater than the viscosity of second damping oil (14)；
Through-hole (41) are provided in the first piston (4)/second piston (5).
2. a kind of big stroke compact type bilayer viscous damper according to claim 1, it is characterised in that: described logical
Hole (41) is linear, is additionally provided with hole size regulating device, the adjusting in the first piston (4)/second piston (5)
Device includes the thread groove (42) in the first piston (4)/second piston (5) and close to the through-hole (41), described
Screw (43) are installed in thread groove (42), further include a circular baffle plate (44) for having mounting hole, the spiral shell of the screw (43)
Bar passes through the mounting hole and is installed in the thread groove (42).
3. a kind of big stroke compact type bilayer viscous damper according to claim 2, it is characterised in that: the circle
The diameter of shape baffle (44) is greater than the diameter of the through-hole.
4. a kind of big stroke compact type bilayer viscous damper according to claim 1, it is characterised in that: described
One end of one piston rod (3) is fixedly connected with the first lifting lug (1).
5. a kind of big stroke compact type bilayer viscous damper according to claim 1, it is characterised in that: described
Four end caps (14) are also connected with external module (9), and the outer wall of the external module (9) is connected with the second lifting lug (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910070686.4A CN109654152A (en) | 2019-01-25 | 2019-01-25 | A kind of big stroke compact type bilayer viscous damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910070686.4A CN109654152A (en) | 2019-01-25 | 2019-01-25 | A kind of big stroke compact type bilayer viscous damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109654152A true CN109654152A (en) | 2019-04-19 |
Family
ID=66121192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910070686.4A Pending CN109654152A (en) | 2019-01-25 | 2019-01-25 | A kind of big stroke compact type bilayer viscous damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109654152A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761431A (en) * | 2019-10-29 | 2020-02-07 | 北京交通大学 | Combined shock-absorbing damper with self-resetting function |
| CN112855828A (en) * | 2020-12-30 | 2021-05-28 | 哈尔滨工业大学 | Shock-absorbing damper of high-pile wharf |
| CN114934969A (en) * | 2022-05-25 | 2022-08-23 | 西安建筑科技大学 | Tension-compression viscous damper and application method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0486227A1 (en) * | 1990-11-13 | 1992-05-20 | General Electric Company | Vibration damper assembly |
| CN2542547Y (en) * | 2002-04-23 | 2003-04-02 | 罗学华 | Mechanical hydraulic motorcycle damper |
| CN201228746Y (en) * | 2008-07-04 | 2009-04-29 | 常州格林电力机械制造有限公司 | Load bearing damper |
| CN203743294U (en) * | 2013-12-30 | 2014-07-30 | 卓朝旦 | Automobile shock absorber with adjustable hole diameter |
| CN107606035A (en) * | 2017-10-26 | 2018-01-19 | 江苏工邦振控科技有限公司 | A kind of intelligent Effects of Viscous Fluid Damper |
| CN109083968A (en) * | 2018-10-30 | 2018-12-25 | 江苏容大减震科技股份有限公司 | A kind of high speed and large stroke damper of suitable blasting impact environment |
-
2019
- 2019-01-25 CN CN201910070686.4A patent/CN109654152A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0486227A1 (en) * | 1990-11-13 | 1992-05-20 | General Electric Company | Vibration damper assembly |
| CN2542547Y (en) * | 2002-04-23 | 2003-04-02 | 罗学华 | Mechanical hydraulic motorcycle damper |
| CN201228746Y (en) * | 2008-07-04 | 2009-04-29 | 常州格林电力机械制造有限公司 | Load bearing damper |
| CN203743294U (en) * | 2013-12-30 | 2014-07-30 | 卓朝旦 | Automobile shock absorber with adjustable hole diameter |
| CN107606035A (en) * | 2017-10-26 | 2018-01-19 | 江苏工邦振控科技有限公司 | A kind of intelligent Effects of Viscous Fluid Damper |
| CN109083968A (en) * | 2018-10-30 | 2018-12-25 | 江苏容大减震科技股份有限公司 | A kind of high speed and large stroke damper of suitable blasting impact environment |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761431A (en) * | 2019-10-29 | 2020-02-07 | 北京交通大学 | Combined shock-absorbing damper with self-resetting function |
| CN112855828A (en) * | 2020-12-30 | 2021-05-28 | 哈尔滨工业大学 | Shock-absorbing damper of high-pile wharf |
| CN112855828B (en) * | 2020-12-30 | 2022-07-15 | 哈尔滨工业大学 | Shock absorption damper for high-pile wharf |
| CN114934969A (en) * | 2022-05-25 | 2022-08-23 | 西安建筑科技大学 | Tension-compression viscous damper and application method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109654152A (en) | A kind of big stroke compact type bilayer viscous damper | |
| US8978845B2 (en) | Frequency/pressure sensitive shock absorber | |
| CN107339360A (en) | A kind of undercarriage buffer | |
| CN108006141B (en) | Hydraulic buffer | |
| CN109798317B (en) | Damping device for agricultural machine based on magnetorheological fluid | |
| CN2806880Y (en) | Double-rod clearance type damping liquid and spring composite vibration damper | |
| CN111663433A (en) | Self-resetting SMA-viscous vibration reduction damper | |
| KR100395325B1 (en) | Shock absorber | |
| CN109027097A (en) | A kind of hydraulic damping device | |
| CN102729285A (en) | Rotary cutting apparatus with vibration attenuation means | |
| CN107795625B (en) | A kind of fluid pressure type damping buffer | |
| CN109611500A (en) | A kind of compact type bilayer viscous damper with reset function | |
| CN115163723A (en) | Magnetorheological variable damping vibration attenuation energy dissipation device | |
| CA3217872A1 (en) | Damping system for a cabin of a movable work machine | |
| CN209959784U (en) | Compact-structure double-layer viscous damper with self-resetting function | |
| CN211599391U (en) | Damping adjusting mechanism of front shock absorber | |
| US20040154888A1 (en) | Monotube strut with rebound cut-off feature | |
| KR20240000544U (en) | Damping shock absorber structure | |
| ITTO990643A1 (en) | CONTROLLED OSCILLATING DAMPER. | |
| CN108797315B (en) | Viscous shear type damper | |
| EP1277985A2 (en) | Hydraulic rebound cut-off for monotube damper | |
| CN109595288A (en) | A kind of damping force adjustment mechanism | |
| CN212335746U (en) | Self-resetting SMA-viscous vibration reduction damper | |
| CN210461507U (en) | Large-stroke compact-structure double-layer viscous damper | |
| CN210686828U (en) | Fan shock absorber based on magneto-rheological effect |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |