CN102207162A - Single-rod magnetorheological damper with laminated piston - Google Patents
Single-rod magnetorheological damper with laminated piston Download PDFInfo
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- CN102207162A CN102207162A CN 201110156699 CN201110156699A CN102207162A CN 102207162 A CN102207162 A CN 102207162A CN 201110156699 CN201110156699 CN 201110156699 CN 201110156699 A CN201110156699 A CN 201110156699A CN 102207162 A CN102207162 A CN 102207162A
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- disk
- clutch release
- slave cylinder
- release slave
- piston
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Abstract
The invention provides a single-rod magnetorheological damper with a laminated piston, which comprises a working cylinder, an external electromagnet, a compensating airbag, the laminated piston and a piston rod and is characterized in that: the laminated piston is composed of three or more wafers; the outer diameters of the wafers are smaller than the inner diameter of the working cylinder, and gaps for the flow of a magnetorheological fluid are retained among the wafers; the wafers are connected through a hinge or a connecting rod mechanism in an axial direction; the first wafer is fixed to one end of the piston rod, and the other end of the piston rod stretches out of the working cylinder through a sealing device and a bearing which are arranged on the end face of the working cylinder; the compensating airbag is arranged at the bottom of the inner part of the working cylinder; the external electromagnet is fixed on the outer circumference of the working cylinder; the working cylinder is made of a non-magnetic material; and the magnetorheological fluid is filled in the working cylinder.
Description
Technical field
The invention belongs to a kind of MR damper, be specifically related to a kind of lamination piston single outstretch pole magnetorheological damper.
Background technique
Working stroke is shorter owing to be subjected to the restriction of clutch release slave cylinder inner carrier length for common single outstretch pole magnetorheological damper, be difficult to be applicable to the occasion of working space limited length system, and the lamination piston in a kind of lamination piston single outstretch pole magnetorheological damper of the present invention is made of a plurality of disks, and each disk is axially connecting by hinge or linkage mechanism, so the length of lamination piston is reduced, therefore, under the identical situation of clutch release slave cylinder length, can provide bigger working stroke, the application area of single outstretch pole magnetorheological damper is expanded.
Summary of the invention
The present invention is directed to the common less deficiency of single outstretch pole magnetorheological damper working stroke, a kind of novel MR damper has been proposed, that is: a kind of lamination piston single outstretch pole magnetorheological damper, because lamination piston single outstretch pole magnetorheological damper can provide bigger working stroke under the identical situation of clutch release slave cylinder length, thereby Applicable scope is more extensive.
Technological scheme of the present invention is as follows:
A kind of lamination piston single outstretch pole magnetorheological damper, it comprises clutch release slave cylinder, external electromagnet, the compensation air bag, lamination piston and piston rod, wherein, the lamination piston is to be made of three or more disk, the external diameter of disk is less than the internal diameter of clutch release slave cylinder and leave the gap that magnetic flow liquid flows, axially connecting between each disk by hinge or linkage mechanism, one end of piston rod and first disk are fixed, the other end of piston rod stretches out in clutch release slave cylinder by the seal arrangement and the bearing of clutch release slave cylinder end face, the compensation air bag is installed in the bottom in the clutch release slave cylinder, external electromagnet is fixed on the excircle of clutch release slave cylinder, clutch release slave cylinder is made of non-magnet_conductible material, has been full of magnetic flow liquid in clutch release slave cylinder.
The present invention's's (constituting example by three disks with the lamination piston) function is achieved in that
When the promotion piston rod enters in the clutch release slave cylinder, piston rod will at first promote first disk of lamination piston, first disk will push the magnetic flow liquid in the gap between first disk and second disk, this part magnetic flow liquid that is squeezed is flowed out by the gap between clutch release slave cylinder internal diameter and the disk external diameter, gap between first disk and second disk is dwindled, simultaneously axial hinge or the linkage mechanism between first disk and second disk will fold gradually, and be overlapping up to first disk and second disk; When the promotion piston rod continues to enter in the clutch release slave cylinder, piston rod will promote first disk and the second overlapping with it disk in the lamination piston, make the magnetic flow liquid in the gap between second disk of second disk extruding and the 3rd disk, this part magnetic flow liquid that is squeezed is flowed out by the gap between clutch release slave cylinder internal diameter and the disk external diameter, gap between second disk and the 3rd disk is dwindled, simultaneously axial hinge or the linkage mechanism between second disk and the 3rd disk will fold gradually, and be overlapping up to second disk and the 3rd disk; After whole disks of lamination piston are overlapping, when if continuation promotion piston rod enters in the clutch release slave cylinder, piston rod makes the interior magnetic flow liquid of clutch release slave cylinder by the Clearance Flow between clutch release slave cylinder internal diameter and the disk external diameter magnetic flow liquid in the whole disk extruding clutch release slave cylinders that promote to overlap; Entering the volume-variation that causes in the clutch release slave cylinder in the clutch release slave cylinder because of piston rod compensates by the compensation air bag; When the external electromagnet no electric circuit, the magnetic intensity in the clutch release slave cylinder is zero, the interior magnetic flow liquid viscosity minimum of clutch release slave cylinder this moment, the damping force minimum that is subjected to when making the promotion piston rod enter in the clutch release slave cylinder; After the external electromagnet energising, the magnetic intensity in the clutch release slave cylinder is higher, makes the magnetic flow liquid viscosity in the clutch release slave cylinder higher, and the damping force that is subjected to when making the promotion piston rod enter in the clutch release slave cylinder is bigger; Adjust the size of current of input external electromagnet and can adjust the interior magnitude of field intensity of clutch release slave cylinder, thereby adjust the size that piston rod enters damping force suffered in the clutch release slave cylinder, make the damping force of lamination piston single outstretch pole magnetorheological damper obtain adjusting.Opposite in the time of in the pulling piston rod is deactivated cylinder with said circumstances, repeat no more herein.Because each disk in the lamination piston in the lamination piston single outstretch pole magnetorheological damper is axially connecting by hinge or linkage mechanism, so, the length of lamination piston is reduced, compare with common single outstretch pole magnetorheological damper, lamination piston single outstretch pole magnetorheological damper can provide bigger working stroke under the identical situation of clutch release slave cylinder length, thereby Applicable scope is more extensive.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is the work schematic representation of the whole disks among the present invention when overlapping.
Fig. 4 constitutes the disk diameter of the lamination piston a kind of structural representation when identical among the present invention.
Embodiment
Describe structure of the present invention in detail below in conjunction with accompanying drawing:
Referring to Fig. 1 and Fig. 2, this is a kind of concrete structure of the present invention, it comprises the clutch release slave cylinder 2 that is made of non-magnet_conductible material, external electromagnet 1, compensation air bag 3, the lamination piston is by disk 6, disk 7 and disk 8 constitute, the diameter of disk 6 is greater than the diameter of disk 7 simultaneously, the diameter of disk 7 is greater than the diameter of disk 8, disk 6, the diameter of disk 7 and disk 8 is all less than the internal diameter of clutch release slave cylinder 2 and leave the gap 16 that magnetic flow liquid flows, gap 17 and gap 18, disk 6, axially connecting between disk 7 and the disk 8 by linkage 11 and linkage 12, one end of piston rod 13 and first disk 8 are fixing, the other end of piston rod 13 stretches out in clutch release slave cylinder 2 by the seal arrangement 10 and the bearing 9 of clutch release slave cylinder 2 end faces, compensation air bag 3 is installed in the bottom in the clutch release slave cylinder 2, in compensation air bag 3, be filled with pressurized air 4, external electromagnet 1 is fixed on the excircle of clutch release slave cylinder 2, clutch release slave cylinder 2 is made of non-magnet_conductible material, be full of magnetic flow liquid 5 in clutch release slave cylinder 2, external electromagnet 1 is connected with control power supply 15 by lighting outlet 14.
When promotion piston rod 13 enters in the clutch release slave cylinder 2 left, because of the diameter of disk 7 in the lamination piston diameter greater than disk 8, make the power that power that the disk 7 in the magnetic flow liquid 5 is subjected to is subjected to left movement greater than disk 8 that is in together when left movement, therefore, the magnetic flow liquid in gap 20 between disk 8 and the disk 7 is being flowed by the gap 16 between lamination piston and the clutch release slave cylinder 2, gap 17 and gap 18 after the extruding that is subjected to disk 8, gap 20 between disk 8 and the disk 7 is dwindled gradually, make linkage 12 folding gradually, overlapping up to disk 8 and disk 7; When promotion piston rod 13 continues to enter in the clutch release slave cylinder 2, piston rod 13 will promote disk 8 and the disk 7 after overlapping in the lamination piston, make disk 7 push the magnetic flow liquid in the gap 19 between disks 7 and the disk 6, because of the diameter of disk 6 in the lamination piston diameter greater than disk 7, make the power that power that the disk 6 in the magnetic flow liquid 5 is subjected to left movement is subjected to left movement greater than disk 7 that is in together, therefore, make between disk 7 and the disk 6 magnetic flow liquid after the extruding that is subjected to disk 7 by the gap 16 between lamination piston and the clutch release slave cylinder 2, flow in gap 17 and gap 18, gap 19 between disk 7 and the disk 6 is dwindled, axial linkage 11 between disk 7 and the disk 6 will fold gradually simultaneously, and will be overlapping up to disk 7 and disk 6; Referring to Fig. 3, after the disk 6 of lamination piston, disk 7 and disk 8 are overlapping, when if continuation promotion piston rod 13 enters in the clutch release slave cylinder 2, piston rod 13 makes the magnetic flow liquid 5 in the clutch release slave cylinder 2 flow by the gap 16 between clutch release slave cylinder 2 internal diameters and the lamination piston external diameter, gap 17 and gap 18 magnetic flow liquid 5 in the disk 6, disk 7 and the disk 8 extruding clutch release slave cylinders 2 that promote to overlap; Entering the volume-variation that causes in the clutch release slave cylinder 2 in the clutch release slave cylinder 2 because of piston rod 13 compensates by compensation air bag 3; Adjusting control power supply 15 is input to size of current in the external electromagnet 1 and can adjusts magnitude of field intensity in the clutch release slave cylinder 2, thereby adjust the size that piston rod 13 enters damping force suffered in the clutch release slave cylinder 2, make the damping force of lamination piston single outstretch pole magnetorheological damper obtain adjusting.Opposite with said circumstances when spurring piston rod 13 to the right and deactivate in the cylinder 2, repeat no more herein.
Claims (1)
1. lamination piston single outstretch pole magnetorheological damper, it comprises clutch release slave cylinder, external electromagnet, the compensation air bag, lamination piston and piston rod, it is characterized in that: described lamination piston is to be made of three or more disk, the external diameter of disk is less than the internal diameter of clutch release slave cylinder and leave the gap that magnetic flow liquid flows, axially connecting between each disk by hinge or linkage mechanism, one end of piston rod and first disk are fixed, the other end of piston rod stretches out in clutch release slave cylinder by the seal arrangement and the bearing of clutch release slave cylinder end face, the compensation air bag is installed in the bottom in the clutch release slave cylinder, external electromagnet is fixed on the excircle of clutch release slave cylinder, clutch release slave cylinder is made of non-magnet_conductible material, has been full of magnetic flow liquid in clutch release slave cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101566997A CN102207162B (en) | 2011-06-13 | 2011-06-13 | Single-rod magnetorheological damper with laminated piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101566997A CN102207162B (en) | 2011-06-13 | 2011-06-13 | Single-rod magnetorheological damper with laminated piston |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102207162A true CN102207162A (en) | 2011-10-05 |
| CN102207162B CN102207162B (en) | 2012-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101566997A Expired - Fee Related CN102207162B (en) | 2011-06-13 | 2011-06-13 | Single-rod magnetorheological damper with laminated piston |
Country Status (1)
| Country | Link |
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| CN (1) | CN102207162B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104608941A (en) * | 2014-12-10 | 2015-05-13 | 重庆大学 | Magneto-rheological hinge recombination device with angle location and locking functions |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4351515A (en) * | 1979-07-02 | 1982-09-28 | Toyota Jidosha Kogyo Kabushiki Kaisha | Feedback control type shock absorbing suspension system |
| CN2482608Y (en) * | 2001-06-13 | 2002-03-20 | 乐清市正星健身器配件厂 | Hydraulic damper |
| EP1016805B1 (en) * | 1992-06-18 | 2003-04-09 | Lord Corporation | Magnetorheological fluid devices |
| EP2177784A2 (en) * | 2008-10-15 | 2010-04-21 | Delphi Technologies, Inc. | Magnetorheological Devices with Permanent Field Bias |
| CN101709761A (en) * | 2009-12-23 | 2010-05-19 | 谭和平 | Single outstretch pole magnetorheological damper |
| CN202100651U (en) * | 2011-06-13 | 2012-01-04 | 谭晓婧 | Magnetorheological damper for single outlet rod of laminated piston |
-
2011
- 2011-06-13 CN CN2011101566997A patent/CN102207162B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4351515A (en) * | 1979-07-02 | 1982-09-28 | Toyota Jidosha Kogyo Kabushiki Kaisha | Feedback control type shock absorbing suspension system |
| EP1016805B1 (en) * | 1992-06-18 | 2003-04-09 | Lord Corporation | Magnetorheological fluid devices |
| CN2482608Y (en) * | 2001-06-13 | 2002-03-20 | 乐清市正星健身器配件厂 | Hydraulic damper |
| EP2177784A2 (en) * | 2008-10-15 | 2010-04-21 | Delphi Technologies, Inc. | Magnetorheological Devices with Permanent Field Bias |
| CN101709761A (en) * | 2009-12-23 | 2010-05-19 | 谭和平 | Single outstretch pole magnetorheological damper |
| CN202100651U (en) * | 2011-06-13 | 2012-01-04 | 谭晓婧 | Magnetorheological damper for single outlet rod of laminated piston |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104608941A (en) * | 2014-12-10 | 2015-05-13 | 重庆大学 | Magneto-rheological hinge recombination device with angle location and locking functions |
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| Publication number | Publication date |
|---|---|
| CN102207162B (en) | 2012-08-01 |
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