CN106884922A - A kind of hydraulic damper compensated automatically with oil pocket - Google Patents
A kind of hydraulic damper compensated automatically with oil pocket Download PDFInfo
- Publication number
- CN106884922A CN106884922A CN201510934903.1A CN201510934903A CN106884922A CN 106884922 A CN106884922 A CN 106884922A CN 201510934903 A CN201510934903 A CN 201510934903A CN 106884922 A CN106884922 A CN 106884922A
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- China
- Prior art keywords
- oil
- oil pocket
- master cylinder
- cylinder
- end cap
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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
- F16F9/18—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 a closed cylinder and a piston separating two or more working spaces therein
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of hydraulic damper compensated automatically with oil pocket,Including outer oil cylinder,Master cylinder,Piston rod,Piston head and left oscillating bearing,Master cylinder one end is connected with outer end cap,Its other end is connected with inner end cap,Main oil pocket is provided with inside master cylinder,Piston head is in main oil pocket,And main oil pocket is divided into a left side,Right oil pocket,It is provided with a left side on piston head,The oil filler point of right oil pocket connection,Outer oil cylinder one end is provided with opening,It is used to be sheathed on master cylinder outside and seal,Inner end cap is in outer oil cylinder,And mutually sealed with outer oil cylinder inner side,Inner end cap,Outer oil cavity is formed between outer oil cylinder and master cylinder,Master cylinder is provided with oil filler point,Outer oil cavity is connected by oil filler point with left oil pocket,The outer oil cylinder other end is connected with connecting plate,Piston rod one end is connected with piston head,Its other end is connected through inner end cap with connecting plate inner side,Left oscillating bearing is connected to connecting plate outside.The present invention can be compensated accurately main oil cavity product moment automatically.
Description
Technical field
The present invention relates to hydraulic damper, compensated automatically with oil pocket more specifically to a kind of
Hydraulic damper.
Background technology
Damper, is divided into vibration damping energy dissipating and antivibration supports two major classes.
It is used for vibration damping energy dissipating in space flight, aviation, military project, firearms, automobile and other industries.Vibration damping energy dissipating
Damper is a kind of velocity-dependent damper without rigidity, installed in places such as engineering structures, quite
In " air bag " is mounted with, come interim in outside stimulus, damper absorbs and consumes outer to greatest extent
Encourage the energy being input into reach the purpose of energy-eliminating shock-absorbing in portion.From after nineteen seventies, people
Start step by step to be converted in the Structural Engineerings such as building, bridge, railway these technologies, its development
It is very rapid.
In nuclear power station, for damping supporting.Core level damper is a kind of to speed or acceleration response
Sensitive antivibration supporting arrangement, for protecting the key equipment or pipeline that are supported by.Damper is to equipment
Or the slow motion that the normal thermal expansion of pipeline causes does not work.Be subjected to sudden applied load (earthquake or
Pressure jump) when, damper has reformed into one and has been rigidly connected and carried out limiting displacement, and antivibration is reached with this
The purpose of support.Applied in large quantities in nuclear power station.
Damper can be divided into again according to a variety of applications：Spring-damper, hydraulic damper,
Pulse damper, rotary damper, wind damper, viscous damper and mechanical damper etc..
Incorporated by reference to shown in Fig. 1, current existing single rod hydraulic damper realizes that oil cavity product moment is compensated
Method be the outer oil cavity 21 for installing fixed volume additional, filling elastic material 22 in outer oil cavity, by bullet
Property material 22 compression volume change come realize main oil pocket 20 volume differences compensate.The resistance of this form
The compression ratio that Buddhist nun's device is primarily due to the elastomeric material 22 of filling is not very accurate, easily causes damper drawing
The power stretched and compress is asymmetric；Secondly, the elastomeric material 22 of filling is nonmetallic materials, severe
(such as high temperature) easily aged deterioration, loses original effect under use environment, causes damper
Failure.
The content of the invention
For disadvantages mentioned above present in prior art, there is oil pocket it is an object of the invention to provide one kind
The hydraulic damper of automatic compensation, the present invention is real by installing the outer oil cylinder moved with piston rod additional
The accurate compensation of existing master cylinder volume differences, removes filling non-metallic elastic material, and then increase damper
Service life.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of hydraulic damper compensated automatically with oil pocket, including outer oil cylinder, master cylinder, piston rod,
Piston head and left oscillating bearing, master cylinder one end are connected with outer end cap, and its other end is connected with interior
End cap, is provided with main oil pocket inside master cylinder, piston head is mutually close with main oil pocket inner side in main oil pocket
Envelope, and master cylinder is divided into left and right oil pocket, the oiling for connecting left and right oil pocket is provided with piston head
Hole, outer oil cylinder one end is provided with opening, is used to be sheathed on master cylinder outside and seal, and inner end cap is located at outer
In oil cylinder, and mutually sealed with outer oil cylinder inner side, outer oil is formed between inner end cap, outer oil cylinder and master cylinder
Chamber, master cylinder is provided with oil filler point, and outer oil cavity is connected by oil filler point with left oil pocket, and outer oil cylinder is another
One end is connected with connecting plate, and piston rod one end is connected with piston head, its other end through inner end cap with
Connecting plate inner side is connected, and left oscillating bearing is connected to connecting plate outside.
Seal is equipped with described sealing.
Described outer end cap is provided with right oscillating bearing.
Described left oscillating bearing is provided with left locking nut with the junction on the outside of connecting plate.
Described right oscillating bearing is provided with right locking nut with the junction of outer end cap.
Described outer oil cylinder, the relational expression between master cylinder and piston rod three are：
In formula：D1 is the internal diameter of outer oil cylinder, and D2 is the external diameter of master cylinder, and D3 is the diameter of piston rod
Footpath.
Oil filler point on described piston head is axially uniformly distributed on piston head.
Oil filler point on described master cylinder is radially uniform to be distributed on master cylinder.
The technical scheme of summary, it is an advantage of the current invention that can more accurately to main oil cavity
Product moment is compensated, and removes filling nonmetallic materials, increases the service life of damper.
Brief description of the drawings
Fig. 1 is the structural representation of prior art；
Fig. 2 is structural representation of the invention；
Fig. 3 is sectional views of the Fig. 2 along A-A.
Specific embodiment
Technical scheme is further illustrated with reference to the accompanying drawings and examples.
Incorporated by reference to shown in Fig. 2, a kind of hydraulic damping compensated automatically with oil pocket provided by the present invention
Device, including outer oil cylinder 1, master cylinder 2, piston rod 3, piston head 4 and left oscillating bearing 11, it is main
The one end of oil cylinder 2 is connected with outer end cap 5, and its other end is connected with inner end cap 6, in master cylinder 2
Portion is provided with main oil pocket 7, and piston head 4 is mutually sealed in main oil pocket 7 with the inner side of main oil pocket 7, and
Be left and right oil pocket 701,702 by 7 points of main oil pocket, be provided with piston head 4 by left and right oil pocket 701,
The oil filler point 13 of 702 connections, one end of outer oil cylinder 1 is provided with opening, is used to be sheathed on the outside of master cylinder 2
And seal, inner end cap 6 is mutually sealed, inner end cap inside outer oil cylinder 1 with the inner side of outer oil cylinder 1
6th, outer oil cavity 8 is formed between outer oil cylinder 1 and master cylinder 2, master cylinder 2 is provided with oil filler point 12,
Outer oil cavity 8 is connected by oil filler point 12 with left oil pocket 701, and the other end of outer oil cylinder 1 is connected with
Connecting plate 9, one end of piston rod 3 is connected with piston head 4, and its other end passes through inner end cap 6 and is connected
The inner side of plate 9 is connected, and left oscillating bearing connects 11 and is connected to the outside of connecting plate 9, left oscillating bearing 11 with even
The junction in the outside of fishplate bar 9 is provided with left locking nut 15.
Right oscillating bearing 14, the connection of right oscillating bearing 14 and outer end cap 5 are additionally provided with outer end cap 5
Place is provided with right locking nut 16.
Preferably, being equipped with seal 10 at described sealing.
Preferably, the oil filler point 13 on described piston head 4 is axially uniformly distributed on piston head 4.
Preferably, oil filler point 12 on described master cylinder 2 is radially uniform being distributed on master cylinder 2.
Operation principle of the invention is, when left oscillating bearing 11 is to left movement, piston rod 3, piston
First 4, outer oil cylinder 1 is moved therewith, and now, volume of the piston rod 4 in main oil pocket 7 reduces, main
The volume of oil pocket 7 increases, and the volume of outer oil cavity 8 reduces, and the hydraulic oil in outer oil cavity 8 passes through oil filler point 17
Flow into and compensate in main oil pocket 7, on the contrary the hydraulic oil in main oil pocket 7 is flowed into by oil filler point 17
Outer oil cavity 8 is stored.
Incorporated by reference to shown in Fig. 3, D1 is the internal diameter of outer oil cylinder 1, and D2 is the external diameter of master cylinder 2, D3
It is the diameter of piston rod 3, three need to meet relational expression：, due to work
The equal length that the length that stopper rod 4 is increased or decreased in main oil pocket 7 changes with outer oil cavity 8, so
During to left movement, the increased volume of main oil pocket 7 is equal with the volume that outer oil cavity 8 reduces, it is ensured that two oil
Chamber cumulative volume is constant, and vice versa.
Those of ordinary skill in the art is it should be appreciated that the embodiment of the above is intended merely to
The bright present invention, and be not used as being limitation of the invention, as long as in spirit of the invention
Interior, change, modification to embodiment described above will all fall in the range of claims of the present invention.
Claims (8)
1. a kind of hydraulic damper compensated automatically with oil pocket,It is characterized in that,Including outer oil cylinder,Master cylinder,Piston rod,Piston head and left oscillating bearing,Master cylinder one end is connected with outer end cap,Its other end is connected with inner end cap,Main oil pocket is provided with inside master cylinder,Piston head is in main oil pocket,Mutually sealed with main oil pocket inner side,And main oil pocket is divided into a left side,Right oil pocket,It is provided with a left side on piston head,The oil filler point of right oil pocket connection,Outer oil cylinder one end is provided with opening,It is used to be sheathed on master cylinder outside and seal,Inner end cap is in outer oil cylinder,And mutually sealed with outer oil cylinder inner side,Inner end cap,Outer oil cavity is formed between outer oil cylinder and master cylinder,Master cylinder is provided with oil filler point,Outer oil cavity is connected by oil filler point with left oil pocket,The outer oil cylinder other end is connected with connecting plate,Piston rod one end is connected with piston head,Its other end is connected through inner end cap with connecting plate inner side,Left oscillating bearing is connected to connecting plate outside.
2. a kind of hydraulic damper compensated automatically with oil pocket as claimed in claim 1, it is characterised in that be equipped with seal at described sealing.
3. a kind of hydraulic damper compensated automatically with oil pocket as claimed in claim 1, it is characterised in that described outer end cap is provided with right oscillating bearing.
4. a kind of hydraulic damper compensated automatically with oil pocket as claimed in claim 1, it is characterised in that described left oscillating bearing is provided with left locking nut with the junction on the outside of connecting plate.
5. a kind of hydraulic damper compensated automatically with oil pocket as claimed in claim 3, it is characterised in that described right oscillating bearing is provided with right locking nut with the junction of outer end cap.
6. a kind of hydraulic damper compensated automatically with oil pocket as claimed in claim 1, it is characterised in that described outer oil cylinder, the relational expression between master cylinder and piston rod three are：
In formula：D1 is the internal diameter of outer oil cylinder, and D2 is the external diameter of master cylinder, and D3 is the diameter of piston rod.
7. a kind of hydraulic damper compensated automatically with oil pocket as claimed in claim 1, it is characterised in that the oil filler point on described piston head is axially uniformly distributed on piston head.
8. a kind of hydraulic damper compensated automatically with oil pocket as claimed in claim 1, it is characterised in that oil filler point on described master cylinder is radially uniform to be distributed on master cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510934903.1A CN106884922B (en) | 2015-12-15 | 2015-12-15 | A kind of hydraulic damper compensated automatically with oil pocket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510934903.1A CN106884922B (en) | 2015-12-15 | 2015-12-15 | A kind of hydraulic damper compensated automatically with oil pocket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106884922A true CN106884922A (en) | 2017-06-23 |
| CN106884922B CN106884922B (en) | 2019-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510934903.1A Active CN106884922B (en) | 2015-12-15 | 2015-12-15 | A kind of hydraulic damper compensated automatically with oil pocket |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504121A (en) * | 2017-09-28 | 2017-12-22 | 浙江路得坦摩汽车部件股份有限公司 | High sensitivity vibration damper with adjustable damping |
| CN108662067A (en) * | 2018-07-20 | 2018-10-16 | 何亮 | Damper |
| CN109083313A (en) * | 2018-10-25 | 2018-12-25 | 宁波建工建乐工程有限公司 | Point supporting glass buffer displacement overlapping joint |
| CN112283276A (en) * | 2020-10-19 | 2021-01-29 | 科马智能悬架技术(青岛)有限公司 | Magneto-rheological damper |
| CN112431889A (en) * | 2020-12-25 | 2021-03-02 | 北京赛福思创减震科技股份公司 | Oil cylinder oil filler hole device for viscous damper |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01188733A (en) * | 1987-11-28 | 1989-07-28 | Hermann Hemscheidt Mas Fab Gmbh & Co | Fluid-pneumatic pressure impact-vibration damper |
| CN2327838Y (en) * | 1998-03-13 | 1999-07-07 | 吴世超 | Cylinder vibration absorber with powerful two way lubrication |
| CN2580206Y (en) * | 2002-09-06 | 2003-10-15 | 张小虎 | Closed hydraulic damper |
| JP2012211627A (en) * | 2011-03-31 | 2012-11-01 | Kyb Co Ltd | Shock absorber |
| CN203670584U (en) * | 2013-10-24 | 2014-06-25 | 上海瑞纽机械装备制造有限公司 | Hydraulic damper with non-metallic compensator |
| CN204061702U (en) * | 2014-08-22 | 2014-12-31 | 华中科技大学 | Combined type short stroke damping device |
| CN205226203U (en) * | 2015-12-15 | 2016-05-11 | 上海瑞纽机械装备制造有限公司 | Hydraulic damper with oil pocket automatic compensation |
-
2015
- 2015-12-15 CN CN201510934903.1A patent/CN106884922B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01188733A (en) * | 1987-11-28 | 1989-07-28 | Hermann Hemscheidt Mas Fab Gmbh & Co | Fluid-pneumatic pressure impact-vibration damper |
| CN2327838Y (en) * | 1998-03-13 | 1999-07-07 | 吴世超 | Cylinder vibration absorber with powerful two way lubrication |
| CN2580206Y (en) * | 2002-09-06 | 2003-10-15 | 张小虎 | Closed hydraulic damper |
| JP2012211627A (en) * | 2011-03-31 | 2012-11-01 | Kyb Co Ltd | Shock absorber |
| CN203670584U (en) * | 2013-10-24 | 2014-06-25 | 上海瑞纽机械装备制造有限公司 | Hydraulic damper with non-metallic compensator |
| CN204061702U (en) * | 2014-08-22 | 2014-12-31 | 华中科技大学 | Combined type short stroke damping device |
| CN205226203U (en) * | 2015-12-15 | 2016-05-11 | 上海瑞纽机械装备制造有限公司 | Hydraulic damper with oil pocket automatic compensation |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504121A (en) * | 2017-09-28 | 2017-12-22 | 浙江路得坦摩汽车部件股份有限公司 | High sensitivity vibration damper with adjustable damping |
| CN108662067A (en) * | 2018-07-20 | 2018-10-16 | 何亮 | Damper |
| CN108662067B (en) * | 2018-07-20 | 2024-03-08 | 何亮 | Damper |
| CN109083313A (en) * | 2018-10-25 | 2018-12-25 | 宁波建工建乐工程有限公司 | Point supporting glass buffer displacement overlapping joint |
| CN112283276A (en) * | 2020-10-19 | 2021-01-29 | 科马智能悬架技术(青岛)有限公司 | Magneto-rheological damper |
| CN112431889A (en) * | 2020-12-25 | 2021-03-02 | 北京赛福思创减震科技股份公司 | Oil cylinder oil filler hole device for viscous damper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106884922B (en) | 2019-11-22 |
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