CN2739412Y - Gap sealed throttling channel damper - Google Patents
Gap sealed throttling channel damper Download PDFInfo
- Publication number
- CN2739412Y CN2739412Y CN 200420085234 CN200420085234U CN2739412Y CN 2739412 Y CN2739412 Y CN 2739412Y CN 200420085234 CN200420085234 CN 200420085234 CN 200420085234 U CN200420085234 U CN 200420085234U CN 2739412 Y CN2739412 Y CN 2739412Y
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- China
- Prior art keywords
- magnetic
- conductive disk
- magnetic conductive
- piston
- damper
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- Expired - Fee Related
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Abstract
The utility model relates to a gap sealed throttling channel damper, belonging to the hydraulic range. A piston comprises a magnetic ring, magnetic disks and a magnetic loop. The magnetic loop is fixed in the magnetic ring; the two ends of the magnetic ring are encapsulated via the upper and lower magnetic disks; damping grooves are equispaced on the outer cylindrical surface of the upper and lower magnetic disks in a radial direction. The gap sealed throttling channel damper has larger damping force than the device without a damper groove, the magnetic rheological fluid flows to the direction of the damper groove, the direction is vertical to the magnetic field direction, and the magnetic rheological effect can be exerted furthest. The utility model has the advantages of simple structure and easy processing and assembly as no other moving component except the piston is existed.
Description
Affiliated field
The utility model belongs to the damper of Hydraulic Field, especially a kind of slit seal throttling passage damper.
Background technique
Study the MR damper of using at present, the cylinder of the damping piston that adopts is a smooth surface, the magnetic flow liquid damping constant that the cylinder of damping piston produces when (also claiming damp channel) of flowing through is smaller, the damping force excursion that forms is little and not enough, thereby the usefulness of such damper is not very strong.And at the magnetorheological magnetic conduction coil that damper is installed, the magnetic circuit that it produced is subjected to structure influence and can not guarantees that the flow through direction of damp channel of magnetic flow liquid is vertical with magnetic direction, thereby has reduced magnetorheological effect.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of damping force excursion big, the slit seal throttling passage damper that magnetic rheology effect is big.
The purpose of this utility model is achieved in that
Slit seal throttling passage damper described in the utility model, for the upper/lower terminal of cylinder block is fixed with the form that has a piston that installs by piston rod to slide in upper and lower end cap and the cylinder body by bolt, it is characterized in that: piston is made of magnetic guiding loop, magnetic conductive disk and magnetic conduction coil, the magnetic conduction coil is packed in the magnetic guiding loop, the two ends of magnetic guiding loop are by upper and lower magnetic conductive disk encapsulation, and the external cylindrical surface radial equipartition of upper and lower magnetic conductive disk is shaped on damping slot.
And the damping slot sectional shape that is shaped at the external cylindrical surface radial equipartition of upper and lower magnetic conductive disk is rectangle, triangle or trapezoidal, on this upper and lower magnetic conductive disk external cylindrical surface the quantity of the uniform damping slot that is shaped on be 2～8 roads.
And the material of cylinder body and upper and lower magnetic conductive disk all adopts the DT4 electrical pure iron.
Advantage of the present utility model and good effect are:
1. by test, under equal conditions, the damping force when damping slot is arranged than the undamped groove has raising by a relatively large margin, and the excursion of damping force is also bigger.
2. the flow through direction of damping slot of magnetic flow liquid is vertical with magnetic direction, and magnetic rheology effect is brought into play to greatest extent.
3. simple structure does not have other moving elements except piston, and the processing of part and assembling all are easy to.
Description of drawings
Fig. 1 is a cross-sectional view of the present utility model;
Fig. 2 is the outward appearance enlarged diagram of the utility model piston;
Fig. 3 is the cross section cutaway view Amplified image of the utility model piston;
Fig. 4 is magnetic circuit figure of the present utility model;
Fig. 5 is three kinds of sectional shape schematic representation of damping slot.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described:
Slit seal throttling passage damper, for the upper/lower terminal of cylinder block 9 is fixed with upper end cap 2, lower end cap 10 by bolt 8, the lower end cap bottom also is fixed with a land 11.
The form that the piston that installs for piston rod 1 that adopts in the cylinder body of this damper slides on inboard wall of cylinder block, wherein piston is by magnetic guiding loop 5, last magnetic conductive disk 3, the combining form that following magnetic conductive disk 6 and magnetic conduction coil 4 are solidly installed and constitute by tightening nut 7 and piston rod, the magnetic conduction coil is packed in the magnetic guiding loop, the two ends of magnetic guiding loop are by last magnetic conductive disk, encapsulation is lived in following magnetic conductive disk embedding, last magnetic conductive disk, the external cylindrical surface radial equipartition of following magnetic conductive disk is shaped on damping slot 12, this damping slot sectional shape is a rectangle, triangle or trapezoidal (referring to Fig. 5), the quantity of damping slot is 2～8 roads, present embodiment accompanying drawing (Fig. 1, Fig. 2, be rectangular cross-section (the third among Fig. 5) Fig. 3), shown in the quantity of damping slot be 3 roads.
Cylinder body and last magnetic conductive disk, following magnetic conductive disk all adopt permeability magnetic material, and the material that it adopted is the DT4 electrical pure iron.
Working principle of the present utility model is:
Behind coil electricity, produce magnetic field, form the magnetic circuit shown in Fig. 4 dotted line.When the annular pass of magnetic flow liquid by the clearance type damping slot from left chamber chamber or during from right chamber to left chamber, the magnetic line of force that acts on this gap location keeps vertical with the flow direction of magnetic flow liquid all the time to the right.Because this structural feature, the multiple tracks damping slot significantly increases damping force at the out-of-date formation multiple tracks of magnetic current and liquid flow eddy current.Through testing and verification, gapped sealing channel increases about 40%～80% than the damping force of gap-free sealed passage under equal magnetic field condition.The number range that increases damping force is relevant with shape, size and the number of damping slot.
In addition, this design is adding the front and back, magnetic field, and the damping force excursion is bigger.According to simulation analysis, be example with the 0.5mm gap, add before and after the magnetic field, before reaching magnetic saturation, damping force can increase about 80%.
Cylinder body partly uses identical permeability magnetic material with the piston magnetic conduction in the design, is the part of magnetic circuit.Because the upper and lower magnetic conductive disk of magnetic flow liquid and cylinder body can both magnetic conductions, thus the flow resistance that is subjected to during by annular damping slot passage when magnetic flow liquid during than the undamped groove increase many.In addition, magnetic flow liquid is vertical with the magnetic direction of its effect by the direction of annular flow path.
Claims (4)
1. slit seal throttling passage damper, for the upper/lower terminal of cylinder block is fixed with the form that has a piston that installs by piston rod to slide in upper and lower end cap and the cylinder body by bolt, it is characterized in that: piston is made of magnetic guiding loop, magnetic conductive disk and magnetic conduction coil, the magnetic conduction coil is packed in the magnetic guiding loop, the two ends of magnetic guiding loop are by upper and lower magnetic conductive disk encapsulation, and the external cylindrical surface radial equipartition of upper and lower magnetic conductive disk is shaped on damping slot.
2. slit seal throttling passage damper according to claim 1 is characterized in that: the damping slot sectional shape that is shaped at the external cylindrical surface radial equipartition of upper and lower magnetic conductive disk is rectangle, triangle or trapezoidal.
3. slit seal throttling passage damper according to claim 1, it is characterized in that: the material of cylinder body and upper and lower magnetic conductive disk all adopts the DT4 electrical pure iron.
4. slit seal throttling passage damper according to claim 2 is characterized in that: on the described upper and lower magnetic conductive disk external cylindrical surface the quantity of the uniform damping slot that is shaped on be 2～8 roads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420085234 CN2739412Y (en) | 2004-10-29 | 2004-10-29 | Gap sealed throttling channel damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420085234 CN2739412Y (en) | 2004-10-29 | 2004-10-29 | Gap sealed throttling channel damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2739412Y true CN2739412Y (en) | 2005-11-09 |
Family
ID=35354478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420085234 Expired - Fee Related CN2739412Y (en) | 2004-10-29 | 2004-10-29 | Gap sealed throttling channel damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2739412Y (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366946C (en) * | 2006-06-21 | 2008-02-06 | 天津大学 | Spiral groove structured magneto-rheological damper |
| CN101215861B (en) * | 2007-12-28 | 2010-09-29 | 天津大学 | Damping force bidirectionally regulating MR damper |
| CN101398082B (en) * | 2007-09-30 | 2010-11-24 | 昆山市创新科技检测仪器有限公司 | Undamped static pressure cylinder-ram device |
| CN102011822A (en) * | 2010-10-20 | 2011-04-13 | 哈尔滨工程大学 | Hybrid vibration isolator |
| CN102678807A (en) * | 2012-05-30 | 2012-09-19 | 哈尔滨工程大学 | Adjustable metal rubber three-way vibration damper |
| CN102927191A (en) * | 2012-10-25 | 2013-02-13 | 中国民航大学 | Coil internally-installed type magnetorheological damper with oil needle |
| CN102937158A (en) * | 2012-11-12 | 2013-02-20 | 富奥汽车零部件股份有限公司 | Magneto-rheological fluid damper for automobile |
| CN104455178A (en) * | 2014-12-11 | 2015-03-25 | 中国民航大学 | Damping-adjustable magneto-rheological lag damper |
| CN106246797A (en) * | 2016-08-25 | 2016-12-21 | 奇瑞商用车（安徽）有限公司 | A kind of magnetic rheological liquid damper |
| CN107542822A (en) * | 2017-09-04 | 2018-01-05 | 上海大学 | A kind of passive non-contact Verticle vortex magnetic damping generator of single-degree-of-freedom |
| CN107606041A (en) * | 2017-10-29 | 2018-01-19 | 华东交通大学 | The type hybrid damper that MR damper and eddy current damper combine |
| CN108036014A (en) * | 2017-12-21 | 2018-05-15 | 四川建筑职业技术学院 | A kind of MR damper sealing piston equipped with spiral damping passage |
| CN108488304A (en) * | 2018-06-20 | 2018-09-04 | 河南工学院 | Lightweight suspension damping |
| CN111623072A (en) * | 2020-06-09 | 2020-09-04 | 湖南大学 | Fluid damper |
| WO2021098109A1 (en) * | 2019-11-22 | 2021-05-27 | 南通大学 | Tension balancing suspension apparatus |
-
2004
- 2004-10-29 CN CN 200420085234 patent/CN2739412Y/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366946C (en) * | 2006-06-21 | 2008-02-06 | 天津大学 | Spiral groove structured magneto-rheological damper |
| CN101398082B (en) * | 2007-09-30 | 2010-11-24 | 昆山市创新科技检测仪器有限公司 | Undamped static pressure cylinder-ram device |
| CN101215861B (en) * | 2007-12-28 | 2010-09-29 | 天津大学 | Damping force bidirectionally regulating MR damper |
| CN102011822A (en) * | 2010-10-20 | 2011-04-13 | 哈尔滨工程大学 | Hybrid vibration isolator |
| CN102011822B (en) * | 2010-10-20 | 2013-03-20 | 哈尔滨工程大学 | Hybrid vibration isolator |
| CN102678807A (en) * | 2012-05-30 | 2012-09-19 | 哈尔滨工程大学 | Adjustable metal rubber three-way vibration damper |
| CN102927191A (en) * | 2012-10-25 | 2013-02-13 | 中国民航大学 | Coil internally-installed type magnetorheological damper with oil needle |
| CN102937158A (en) * | 2012-11-12 | 2013-02-20 | 富奥汽车零部件股份有限公司 | Magneto-rheological fluid damper for automobile |
| CN102937158B (en) * | 2012-11-12 | 2014-07-09 | 富奥汽车零部件股份有限公司 | Magneto-rheological fluid damper for automobile |
| CN104455178B (en) * | 2014-12-11 | 2016-06-01 | 中国民航大学 | A kind of damp adjustable magnetorheological shimmy damper |
| CN104455178A (en) * | 2014-12-11 | 2015-03-25 | 中国民航大学 | Damping-adjustable magneto-rheological lag damper |
| CN106246797A (en) * | 2016-08-25 | 2016-12-21 | 奇瑞商用车（安徽）有限公司 | A kind of magnetic rheological liquid damper |
| CN106246797B (en) * | 2016-08-25 | 2018-05-11 | 奇瑞商用车（安徽）有限公司 | A kind of magnetic rheological liquid damper |
| CN107542822A (en) * | 2017-09-04 | 2018-01-05 | 上海大学 | A kind of passive non-contact Verticle vortex magnetic damping generator of single-degree-of-freedom |
| CN107606041A (en) * | 2017-10-29 | 2018-01-19 | 华东交通大学 | The type hybrid damper that MR damper and eddy current damper combine |
| CN107606041B (en) * | 2017-10-29 | 2023-06-09 | 华东交通大学 | Hybrid damper formed by combining magneto-rheological damper and electric vortex damper |
| CN108036014A (en) * | 2017-12-21 | 2018-05-15 | 四川建筑职业技术学院 | A kind of MR damper sealing piston equipped with spiral damping passage |
| CN108488304A (en) * | 2018-06-20 | 2018-09-04 | 河南工学院 | Lightweight suspension damping |
| WO2021098109A1 (en) * | 2019-11-22 | 2021-05-27 | 南通大学 | Tension balancing suspension apparatus |
| CN111623072A (en) * | 2020-06-09 | 2020-09-04 | 湖南大学 | Fluid damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Laijia Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051109 |