CN201751625U - Single piston rod magneto-rheological damper with single channel - Google Patents
Single piston rod magneto-rheological damper with single channel Download PDFInfo
- Publication number
- CN201751625U CN201751625U CN2010202622548U CN201020262254U CN201751625U CN 201751625 U CN201751625 U CN 201751625U CN 2010202622548 U CN2010202622548 U CN 2010202622548U CN 201020262254 U CN201020262254 U CN 201020262254U CN 201751625 U CN201751625 U CN 201751625U
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- Prior art keywords
- piston
- piston rod
- clutch release
- slave cylinder
- release slave
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- 230000004087 circulation Effects 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 32
- 238000013016 damping Methods 0.000 abstract description 29
- 239000012530 fluid Substances 0.000 abstract 3
- 238000010008 shearing Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model discloses a single piston rod magneto-rheological damper with a single channel, wherein the single piston rod magneto-rheological damper with the single channel comprises a working cylinder, a piston, a piston rod and a piston rod volume compensation device. The working cylinder is full of magnetorheological fluids. An axle center of one end of the piston is provided with a big hole for circulation of magnetorheological fluids, and the periphery of the piston rod at the other end of the piston is equipped with more than two small holes communicating with the big hole. A one-way valve is disposed at the orifice part of the big hole or an inner part of the piston. Due to the existence of the single channel for the magnetorheological fluids to flow through, the damping force generated by the single piston rod magneto-rheological damper with the single channel is relatively great in asymmetry.
Description
Technical field
The utility model belongs to a kind of MR damper, is specifically related to a kind of single outstretch pole magnetorheological damper with half-duplex channel.
Background technique
MR damper is a kind of intelligent vibration damping device, the size of the damping force of its generation can be carried out step-less adjustment by the control power supply, common shearing valve type magneto-rheological damper mainly contains single outstretch pole magnetorheological damper and two outstretch pole magnetorheological damper, the damping force that two outstretch pole magnetorheological dampers produce is symmetrical, and the damping force that single outstretch pole magnetorheological damper produces is asymmetric; Because means of transportation such as automobile are that it wants big in the damping force of restoring the stroke generation to the requirement of MR damper, and the damping force that produces in compression stroke is little, the damping force that promptly requires MR damper to produce has asymmetry, therefore, on automobile, adopt single outstretch pole magnetorheological damper as shock absorber part usually, and existing single outstretch pole magnetorheological damper is owing to be subjected to the restriction of himself structure, and the nonsymmetry of its damping force is difficult to do greatly.
Summary of the invention
Nonsymmetry at existing single outstretch pole magnetorheological damper damping force is difficult to do big deficiency, the utility model proposes a kind of single outstretch pole magnetorheological damper with half-duplex channel, the single outstretch pole magnetorheological damper of band half-duplex channel is provided with the passage that allows the magnetic flow liquid one-way flow because of its inside, make its damping force that when compression stroke, produces that bigger reducing be arranged, and the damping force that produces when restoring stroke can remain unchanged, thereby reaches the purpose of the nonsymmetry of the damping force that strengthens its generation.
The technical solution of the utility model is as follows:
The single outstretch pole magnetorheological damper of band half-duplex channel is made of clutch release slave cylinder, piston, piston rod and piston rod volume compensation device, in clutch release slave cylinder, be full of magnetic flow liquid, macropore for the magnetic flow liquid circulation is arranged on the axle center of piston one end, around the piston rod of the piston the other end, the aperture that communicates with macropore more than two is arranged, one-way valve is installed in the big orifice part or the inside of piston.
The single outstretch pole magnetorheological damper of band half-duplex channel is a kind of shearing valve type magneto-rheological damper, the damping force that the shearing valve type magneto-rheological damper produces mainly is to be made of squeezed air-damping power and shearing damp power, this is because when the piston rod drive piston of shearing valve type magneto-rheological damper moves in clutch release slave cylinder, magnetic flow liquid in the clutch release slave cylinder is subjected to the extruding of piston and is forced through the inner peripheral surface of clutch release slave cylinder and the damp channel of the outer peripheral surface formation of piston, flow to the other end of clutch release slave cylinder from an end of clutch release slave cylinder, make the shearing valve type magneto-rheological damper produce squeezed air-damping power because of magnetic flow liquid is squeezed to flow in clutch release slave cylinder; When magnetic flow liquid also is subjected to the relative movement of damp channel and makes the shearing valve type magneto-rheological damper produce shearing damp power when flowing through this damp channel; So, for doing the nonsymmetry of big single outstretch pole magnetorheological damper damping force, can realize by reduce the squeezed air-damping power that is subjected to when magnetic flow liquid flows in clutch release slave cylinder, for this reason, the utility model is provided with one for the mobile extra half-duplex channel of magnetic flow liquid on piston, when piston during to the motion of a certain direction, this half-duplex channel can make a part of magnetic flow liquid in the clutch release slave cylinder directly pass through the hole from piston by damp channel, and the squeezed air-damping power that magnetic flow liquid is produced on this direction is minimized.
Now be installed in the inside of piston with one-way valve, and magnetic flow liquid can only flow to this structure of aperture around the piston the other end piston rod from the macropore of piston one end under the effect of one-way valve, function of the present utility model is described: when piston rod drive piston enters clutch release slave cylinder, the damp channel that is in the inner peripheral surface of a part by clutch release slave cylinder and the outer peripheral surface formation of piston in the magnetic flow liquid of an end in the clutch release slave cylinder has entered the clutch release slave cylinder the other end from an end of clutch release slave cylinder, this a part of magnetic flow liquid will produce different shearing damp power under the situation of different field currents by damp channel the time; And another part magnetic flow liquid of clutch release slave cylinder one end will be by the piston core macropore and one-way valve flow to the aperture of the piston the other end and directly enter the other end of clutch release slave cylinder, because this a part of magnetic flow liquid has only just directly entered the other end of clutch release slave cylinder from an end of clutch release slave cylinder by the hole on the piston, therefore, this a part of magnetic flow liquid can not produce squeezed air-damping power in clutch release slave cylinder, make the damping force of the MR damper generation of being with half-duplex channel less;
When piston rod drive piston is deactivated cylinder, because the effect of the one-way valve of piston one end, magnetic flow liquid in the clutch release slave cylinder can not have been moved by the orifice flow on the piston again, therefore, whole magnetic flow liquids in the clutch release slave cylinder can only enter the clutch release slave cylinder the other end from an end of clutch release slave cylinder by damp channel, and the piston coil makes the MR damper of band half-duplex channel can produce maximum shearing and squeezed air-damping power under the effect of field current.
Compare with existing single outstretch pole magnetorheological damper, the nonsymmetry of damping force improved greatly when the advantage of the MR damper of band half-duplex channel of the present utility model was work, made it be applicable to the particularly vibration damping occasion of heavy-duty car of automobile more.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the sectional view of piston rod among Fig. 1
Fig. 3 is the sectional view of piston among Fig. 1
Fig. 4 is the work schematic representation of the utility model when restoring stroke, and the field coil 2 among the figure on the piston 5 is connected with field current 21 by lighting outlet 20.
Fig. 5 is the work schematic representation of the utility model when compression stroke, and the field coil 2 among the figure on the piston 5 is connected with field current 21 by lighting outlet 20.
Embodiment
Describe structure of the present utility model in detail below in conjunction with accompanying drawing:
Referring to Fig. 1, Fig. 2 and Fig. 3, the single outstretch pole magnetorheological damper of band half-duplex channel, by clutch release slave cylinder 1, piston 5, piston rod 19 and compensation air bag 13 constitute, in clutch release slave cylinder 1, be full of magnetic flow liquid 12, macropore 11 for magnetic flow liquid 12 circulations is arranged on the axle center of piston 5 one ends, around the piston rod 19 of piston 5 the other ends, four apertures 7 that communicate with macropore 11 are arranged, inside at the macropore 11 of piston 5 is equipped with one-way valve support 9 and one-way valve 10, the other end at piston 5 is equipped with piston rod 19, on piston 5, be wound with field coil 2, formed damp channel 4 at the inner peripheral surface of clutch release slave cylinder 1 and the outer peripheral surface of piston 5.
Referring to Fig. 4, when piston rod 19 drive pistons 5 are moved to the left, this moment, the single outstretch pole magnetorheological damper with half-duplex channel was operated in the recovery stroke, when magnetic flow liquid 12 moves right from promptly promoting one-way valve 10 after the aperture 7 around the piston rod 19 enters, one-way valve 10 is closed macropore 11, after one-way valve 10 is closed macropore 11, force magnetic flow liquid 12 can only flow to the right of clutch release slave cylinder 1 from the left side of clutch release slave cylinder 1 by damp channel 4, because the magnetic flow liquid 12 on clutch release slave cylinder 1 left side can only could enter into the right of clutch release slave cylinder 1 by damp channel 4 from the left side of clutch release slave cylinder 1, under the effect of field current 21, to make magnetic flow liquid 12 by damp channel 4 time, produce maximum shearing and squeezed air-damping power, and make the damping force of the single outstretch pole magnetorheological damper generation of being with half-duplex channel bigger;
Referring to Fig. 5, when piston rod 19 drive pistons 5 move right, this moment, the single outstretch pole magnetorheological damper with half-duplex channel was operated in compression stroke, under the effect of compensation air bag 13, the a part of magnetic flow liquid 12 that is in clutch release slave cylinder 1 the right is by damp channel 4, flow to the left side of clutch release slave cylinder 1 from the right of clutch release slave cylinder 1, under the effect of field current 21, will make this part magnetic flow liquid 12 by damp channel 4 time, produce certain shearing damp power; Another part magnetic flow liquid 12 on clutch release slave cylinder 1 the right will enter the back from the macropore 11 of piston 5 one ends and promote one-way valve 10 to left movement, one-way valve 10 is opened, after one-way valve 10 is opened, make the macropore 11 of this part magnetic flow liquid 12 by piston 5, one-way valve 10, four apertures 7 have flow to the left side of clutch release slave cylinder 1 from the right of clutch release slave cylinder 1, because this part magnetic flow liquid has only just directly entered the other end of clutch release slave cylinder 1 from an end of clutch release slave cylinder 1 by the hole on the piston 5 11 and 7, therefore, this a part of magnetic flow liquid can not produce squeezed air-damping power in clutch release slave cylinder 1, make the damping force of the MR damper generation of being with half-duplex channel less; The nonsymmetry that can make the single outstretch pole magnetorheological damper of being with half-duplex channel be operated in the damping force that produces when restoring stroke and compression stroke thus strengthens.
Claims (1)
1. single outstretch pole magnetorheological damper with half-duplex channel, comprise clutch release slave cylinder, piston, piston rod and piston rod volume compensation device, in clutch release slave cylinder, be full of magnetic flow liquid, it is characterized in that, macropore for the magnetic flow liquid circulation is arranged on the axle center of described piston one end, around the piston rod of the piston the other end, the aperture that communicates with macropore more than two is arranged, one-way valve is installed in the big orifice part or the inside of piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202622548U CN201751625U (en) | 2010-07-19 | 2010-07-19 | Single piston rod magneto-rheological damper with single channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202622548U CN201751625U (en) | 2010-07-19 | 2010-07-19 | Single piston rod magneto-rheological damper with single channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201751625U true CN201751625U (en) | 2011-02-23 |
Family
ID=43602032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202622548U Expired - Lifetime CN201751625U (en) | 2010-07-19 | 2010-07-19 | Single piston rod magneto-rheological damper with single channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201751625U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915281A (en) * | 2010-07-19 | 2010-12-15 | 谭和平 | Single-rod magnetorheological damper with one-way channel |
| CN102162499A (en) * | 2011-03-04 | 2011-08-24 | 海尔集团公司 | Variable damping shock absorber and drum washing machine using shock absorber |
| CN102297232A (en) * | 2011-08-22 | 2011-12-28 | 重庆仪表材料研究所 | Single-outstretch pole ring-type piston magneto-rheological damper |
-
2010
- 2010-07-19 CN CN2010202622548U patent/CN201751625U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915281A (en) * | 2010-07-19 | 2010-12-15 | 谭和平 | Single-rod magnetorheological damper with one-way channel |
| CN102162499A (en) * | 2011-03-04 | 2011-08-24 | 海尔集团公司 | Variable damping shock absorber and drum washing machine using shock absorber |
| CN102162499B (en) * | 2011-03-04 | 2016-03-30 | 海尔集团公司 | A kind of damping changing impact damper and use the roller washing machine of this vibration damper |
| CN102297232A (en) * | 2011-08-22 | 2011-12-28 | 重庆仪表材料研究所 | Single-outstretch pole ring-type piston magneto-rheological damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING METER MATERIALS INST Free format text: FORMER OWNER: TAN HEPING Effective date: 20110831 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110831 Address after: 400700, No. 1, Longfeng three village, Beibei District, Chongqing Patentee after: Chongqing Meter Materials Inst Address before: 400700, 34-6-1, three dragon and Phoenix Village, Beibei District, Chongqing Patentee before: Tan Heping |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110223 |
|
| CX01 | Expiry of patent term |