CN202007855U - Multilevel telescopic magnetorheological damper - Google Patents
Multilevel telescopic magnetorheological damper Download PDFInfo
- Publication number
- CN202007855U CN202007855U CN2011200475939U CN201120047593U CN202007855U CN 202007855 U CN202007855 U CN 202007855U CN 2011200475939 U CN2011200475939 U CN 2011200475939U CN 201120047593 U CN201120047593 U CN 201120047593U CN 202007855 U CN202007855 U CN 202007855U
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- box type
- type piston
- piston
- slave cylinder
- clutch release
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Abstract
The utility model discloses a multilevel telescopic magnetorheological damper comprising a working cylinder, a compensation air bag, a piston, a piston rod, a hollow piston, and a hollow piston rod. Equal-diameter through holes having diameter larger than the external diameter of the piston are arranged on the shaft core of the hollow piston and the hollow piston rod. The other end of the piston rod, after being fixed with the piston, is placed in the equal-diameter through holes of the shaft core of the hollow piston and the hollow piston rod. The hollow piston and the hollow piston rod are placed in the working cylinder, and the compensation air bag is situated on the bottom of the working cylinder. The working cylinder and the equal-diameter through holes of the shaft core of the hollow piston and the hollow piston rod are filled with magneto-rheological fluid, and the piston and the hollow piston are winded with excitation coils. The damping force output by the multilevel telescopic magnetorheological damper can be adjusted by adjusting current output to the excitation coils from control power.
Description
Technical field
The utility model belongs to a kind of MR damper, is specifically related to a kind of multi-stage telescopic MR damper.
Background technique
Because the working stroke of common single outstretch pole magnetorheological damper is less than the length of its clutch release slave cylinder, thereby be difficult to be applicable to working space limited length system or working stroke occasion greater than clutch release slave cylinder, and the working stroke of multi-stage telescopic MR damper of the present utility model can be greater than the length of its clutch release slave cylinder, therefore, the multi-stage telescopic MR damper can provide bigger working stroke under the identical situation of clutch release slave cylinder length, and multi-stage telescopic The Applications of Magnetorheological Dampers scope is expanded.
Summary of the invention
The utility model is at the less deficiency of common single outstretch pole magnetorheological damper working stroke, a kind of novel MR damper has been proposed, that is: a kind of multi-stage telescopic MR damper, the multi-stage telescopic MR damper can provide bigger working stroke under the identical situation of clutch release slave cylinder length, thereby Applicable scope is more extensive.
The technical solution of the utility model is as follows:
A kind of multi-stage telescopic MR damper, it comprises clutch release slave cylinder, compensation air bag, piston, piston rod, box type piston, box type piston bar; Isometrical through hole greater than piston external diameter is all arranged on the axle center of box type piston and box type piston bar, and an end of box type piston and an end of box type piston bar are fixed; One end of piston rod and piston fixedly are placed in the isometrical through hole in box type piston and box type piston bar axle center, seal arrangement and the bearing of the other end of piston rod by the box type piston rod end surface stretches out from the other end of box type piston bar, box type piston and box type piston bar place in the clutch release slave cylinder, seal arrangement and the bearing of box type piston bar by the clutch release slave cylinder end face stretches out from an end of clutch release slave cylinder, the compensation air bag is positioned at the clutch release slave cylinder bottom, in the isometrical through hole of clutch release slave cylinder and box type piston and box type piston bar, all be full of magnetic flow liquid, the external diameter of piston is less than the internal diameter of the isometrical through hole on box type piston and the box type piston bar axle center and leave the magnetic flow liquid gap of flowing, on piston, be wound with field coil, the external diameter of box type piston is less than the internal diameter of clutch release slave cylinder and leave the magnetic flow liquid gap of flowing, and is wound with field coil on box type piston.A location ring washer is respectively arranged in the isometrical through hole in box type piston and box type piston bar axle center and in the clutch release slave cylinder, the internal diameter of the location ring washer in the isometrical through hole in box type piston and box type piston bar axle center is less than the external diameter of piston, the internal diameter of location ring washer is less than the external diameter of box type piston in the clutch release slave cylinder, or a location ring washer is respectively arranged at piston rod and box type piston bar end, the external diameter of the location ring washer of piston-rod end is greater than the seal arrangement of box type piston rod end surface and the external diameter of bearing, and the external diameter of the location ring washer of box type piston bar end is greater than the seal arrangement of clutch release slave cylinder end face and the external diameter of bearing.The multi-stage telescopic MR damper has two working strokes, first working stroke is: piston rod promotes piston and enters in the isometrical through hole of (or withdrawing from) box type piston and box type piston bar, and second working stroke is: piston rod promotes box type piston and the box type piston bar enters in (or withdrawing from) clutch release slave cylinder; In these two working strokes, because of in the isometrical through hole of piston rod turnover box type piston and box type piston bar and the volume-variation in the clutch release slave cylinder that causes in the box type piston bar turnover clutch release slave cylinder compensate by the compensation air bag.
Function of the present utility model is achieved in that when piston rod promotes in the isometrical through hole that piston enters box type piston and box type piston bar, that is: in first working stroke, a part of magnetic flow liquid in the isometrical through hole of box type piston and box type piston bar is by the Clearance Flow between piston external diameter and box type piston and the isometrical through hole internal diameter of box type piston bar, another part magnetic flow liquid in the isometrical through hole of box type piston and box type piston bar then is subjected to flowing to clutch release slave cylinder because of the extruding that entering of piston rod reduces box type piston and box type piston bar internal volume, because the isometrical through hole of box type piston and box type piston bar communicates with clutch release slave cylinder, therefore, the compensation air bag that is positioned at the clutch release slave cylinder bottom will be compressed, with the volume-variation in the isometrical through hole of compensation box type piston and box type piston bar; In piston rod continue to promote isometrical through hole that piston enters box type piston and box type piston bar and after arriving the location ring washer of piston-rod end, box type piston and box type piston bar begin to enter clutch release slave cylinder under the promotion of location ring washer on the piston rod, that is: in second working stroke, a part of magnetic flow liquid in the clutch release slave cylinder is by the Clearance Flow between box type piston external diameter and the clutch release slave cylinder internal diameter, another part magnetic flow liquid in the clutch release slave cylinder then is subjected to the extruding that the clutch release slave cylinder internal volume reduced because of entering of box type piston bar, continues compression compensation air bag and enters volume-variation in the clutch release slave cylinder with compensation box type piston bar.
When piston and box type piston field coil no electric circuit, there is not magnetic field in the gap between box type piston external diameter and the clutch release slave cylinder internal diameter between the isometrical through hole internal diameter of gap and piston external diameter and box type piston and box type piston bar, thereby the viscosity of the magnetic flow liquid in the gap is lower, and piston rod promotes in the isometrical through hole that piston enters box type piston and box type piston bar and piston rod promotes box type piston and box type piston bar to enter the damping force that is subjected in the clutch release slave cylinder less; After piston and the energising of box type piston field coil, make the magnetic intensity in the gap between gap between box type piston external diameter and the clutch release slave cylinder internal diameter and piston external diameter and box type piston and the isometrical through hole internal diameter of box type piston bar higher, make the viscosity of the magnetic flow liquid in the gap higher, make piston rod promote in the isometrical through hole that piston enters box type piston and box type piston bar and piston rod promotes box type piston and box type piston bar to enter the damping force that is subjected in the clutch release slave cylinder bigger, by adjusting the size of current of input piston and box type piston field coil, make the damping force of multi-stage telescopic MR damper output obtain adjusting.Therefore, compare,, and make the Applicable scope of MR damper more extensive because of the multi-stage telescopic MR damper can provide bigger working stroke under the identical situation of clutch release slave cylinder length with common single outstretch pole magnetorheological damper.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is a work schematic representation of the present utility model, also is the schematic representation of first working stroke of the utility model.
Fig. 3 is the schematic representation of second working stroke of the utility model.
Fig. 4 is the utility model respectively has a location ring washer in the isometrical through hole in box type piston and box type piston bar axle center and in the clutch release slave cylinder a structural representation, location ring washer 29 among the figure in the isometrical through hole in visible box type piston and box type piston bar axle center and the location ring washer 28 in the clutch release slave cylinder.
Embodiment
Describe structure of the present utility model in detail below in conjunction with accompanying drawing:
Referring to Fig. 1, this is a kind of concrete structure of the present utility model, and it comprises clutch release slave cylinder 3, compensation air bag 1, piston 13 and piston rod 14, box type piston 8 and box type piston bar 15; Isometrical through hole 7 greater than piston 13 external diameters is all arranged on the axle center of box type piston 8 and box type piston bar 15, and an end of box type piston 8 and an end of box type piston bar 15 are fixed; One end of piston rod 14 and piston 13 fixedly are placed in the isometrical through hole 7 in box type piston 8 and box type piston bar 15 axle center, seal arrangement 19 and the bearing 20 of the other end of piston rod 14 by box type piston bar 15 end faces stretches out from the other end of box type piston bar 15, box type piston 8 and box type piston bar 15 are placed in the clutch release slave cylinder 3, seal arrangement 9 and the bearing 10 of box type piston bar 15 by clutch release slave cylinder 3 end faces stretches out from an end of clutch release slave cylinder 3, compensation air bag 1 is positioned at clutch release slave cylinder 3 bottoms, injected pressurized air 2 at compensation air bag 1, in the isometrical through hole 7 of box type piston 8 and box type piston bar 15 and clutch release slave cylinder 3, all be full of magnetic flow liquid 4, the external diameter of piston 13 is less than the internal diameter of the isometrical through hole 7 on box type piston 8 and box type piston bar 15 axle center and leave the magnetic flow liquid gap 12 of flowing, on piston 13, be wound with field coil 11, the lighting outlet 22 of field coil 11 is drawn by piston rod 14 center holes 16, the external diameter of box type piston 8 is less than the internal diameter of clutch release slave cylinder 3 and leave the magnetic flow liquid gap 5 of flowing, be wound with field coil 6 on box type piston 8, the lighting outlet 18 of field coil 6 is drawn by the hole 23 between external diameter in the box type piston bar 15.
Piston rod 14 and box type piston bar 15 ends respectively have a location ring washer 21 and location ring washer 17, the external diameter of the location ring washer 21 of piston rod 14 ends is greater than the seal arrangement 19 of box type piston bar 15 end faces and the external diameter of bearing 20, and the external diameter of the location ring washer 17 of box type piston bar 15 ends is greater than the seal arrangement 9 of clutch release slave cylinder 3 end faces and the external diameter of bearing 10; Referring to Fig. 2, field coil 11 and field coil 6 on piston 13 and the box type piston 8 are connected with control power supply 24 with lighting outlet 18 by lighting outlet 22.
When piston rod 14 promotes in the isometrical through hole 7 that pistons 13 enter box type piston 8 and box type piston bar 15, the multi-stage telescopic MR damper begins to enter first working stroke, make a part of magnetic flow liquid 4 in the isometrical through hole 7 of box type piston 8 and box type piston bar 15, flow by the gap between isometrical through hole 7 internal diameters of piston 13 external diameters and box type piston 8 and box type piston bar 15 12, another part magnetic flow liquid 4 in the isometrical through hole 7 of box type piston 8 and box type piston bar 15, then be subjected to entering because of piston rod 14, make the extruding that isometrical through hole 7 internal volumes of box type piston 8 and box type piston bar 15 reduce and flow in the clutch release slave cylinder 3, because the isometrical through hole of box type piston 8 and box type piston bar 15 communicates with clutch release slave cylinder 3, therefore, the compensation air bag 1 that is positioned at clutch release slave cylinder 3 bottoms will be compressed, with the volume-variation in the isometrical through hole 7 of compensation box type piston 8 and box type piston bar 15; When continuing to promote piston 13, piston rod 14 enters in the isometrical through hole 7 of box type piston 8 and box type piston bar 15, behind the location ring washer 21 resistance shelves that are subjected to stopper rod 14 ends, the multi-stage telescopic MR damper begins to enter second working stroke, referring to Fig. 3, box type piston 8 and box type piston bar 15 begin to enter clutch release slave cylinder 3 under the promotion of location ring washer 21 on the piston rod 14, a part of magnetic flow liquid 4 in the clutch release slave cylinder 3 flows by the gap between box type piston 8 external diameters and clutch release slave cylinder 3 internal diameters 5,4 of another part magnetic flow liquids in the clutch release slave cylinder 3 are subjected to the extruding that clutch release slave cylinder 3 internal volumes reduced because of entering of box type piston bar 15, continue the volume-variation that compression compensation air bag 1 enters in the clutch release slave cylinder 3 with compensation box type piston bar 15.
When control power supply 24 not during output current, when the field coil 11 of piston 13 and box type piston 8 and field coil 6 no electric circuits, there is not magnetic field in the gap 12 between box type piston 8 external diameters and clutch release slave cylinder 3 internal diameters between gap 5 and piston 13 external diameters and box type piston 8 and box type piston bar 15 isometrical through hole 7 internal diameters, thereby the viscosity of the magnetic flow liquid 4 in gap 5 and the gap 12 is lower, and piston rod 14 promotes in the isometrical through hole 7 that pistons 13 enter box type piston 8 and box type piston bar 15 and piston rod 14 promotes box type pistons 8 and box type piston bar 15 to enter the damping force that is subjected in the clutch release slave cylinder 3 less; When control power supply 24 output currents, after the field coil 11 of piston 13 and box type piston 8 and field coil 6 energisings, make the magnetic intensity in the gap 12 between gap 5 between box type piston 8 external diameters and clutch release slave cylinder 3 internal diameters and piston 13 external diameters and box type piston 8 and box type piston bar 15 isometrical through hole 7 internal diameters higher, make the viscosity of magnetic flow liquid 4 in gap 5 and the gap 12 higher, make piston rod 14 promote in the isometrical through hole 7 that pistons 13 enter box type piston 8 and box type piston bar 15 and piston rod 14 promotes box type pistons 8 and box type piston bar 15 to enter the damping force that is subjected in the clutch release slave cylinder 3 bigger, thereby make the damping force of multi-stage telescopic MR damper output obtain changing.Therefore, as long as adjustment control power supply 24 outputs to the size of current in field coil 11 and the field coil 6, can adjust the size of the damping force of multi-stage telescopic MR damper output.
In piston rod 14 pulling pistons 13 withdraw from the isometrical through hole 7 of box type piston 8 and box type piston bar 15 and the situation of piston rod 14 when spurring box type pistons 8 and box type piston bar 15 and deactivating in the cylinder 3 then in contrast, repeat no more herein.
Claims (3)
1. multi-stage telescopic MR damper, it comprises clutch release slave cylinder, the compensation air bag, piston, piston rod, box type piston, the box type piston bar, it is characterized in that: the isometrical through hole greater than piston external diameter is all arranged on the axle center of box type piston and box type piston bar, one end of box type piston and an end of box type piston bar are fixed, one end of piston rod and piston fixedly are placed in the isometrical through hole in box type piston and box type piston bar axle center, seal arrangement and the bearing of the other end of piston rod by the box type piston rod end surface stretches out from the other end of box type piston bar, box type piston and box type piston bar place in the clutch release slave cylinder, seal arrangement and the bearing of box type piston bar by the clutch release slave cylinder end face stretches out from an end of clutch release slave cylinder, the compensation air bag is positioned at the clutch release slave cylinder bottom, all has been full of magnetic flow liquid in the isometrical through hole of clutch release slave cylinder and box type piston and box type piston bar.
2. a kind of multi-stage telescopic MR damper as claimed in claim 1, it is characterized in that: the external diameter of described piston is less than the internal diameter of the isometrical through hole on box type piston and the box type piston bar axle center and leave the magnetic flow liquid gap of flowing, on piston, be wound with field coil, the external diameter of box type piston is less than the internal diameter of clutch release slave cylinder and leave the magnetic flow liquid gap of flowing, and is wound with field coil on box type piston.
3. a kind of multi-stage telescopic MR damper as claimed in claim 1, it is characterized in that: a location ring washer is respectively arranged in the isometrical through hole in described box type piston and box type piston bar axle center and in the clutch release slave cylinder, the internal diameter of the location ring washer in the isometrical through hole in box type piston and box type piston bar axle center is less than the external diameter of piston, the internal diameter of location ring washer is less than the external diameter of box type piston in the clutch release slave cylinder, or described piston rod and box type piston bar end respectively have a location ring washer, the external diameter of the location ring washer of piston-rod end is greater than the seal arrangement of box type piston rod end surface and the external diameter of bearing, and the external diameter of the location ring washer of box type piston bar end is greater than the seal arrangement of clutch release slave cylinder end face and the external diameter of bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200475939U CN202007855U (en) | 2011-02-25 | 2011-02-25 | Multilevel telescopic magnetorheological damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200475939U CN202007855U (en) | 2011-02-25 | 2011-02-25 | Multilevel telescopic magnetorheological damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202007855U true CN202007855U (en) | 2011-10-12 |
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ID=44749513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200475939U Expired - Lifetime CN202007855U (en) | 2011-02-25 | 2011-02-25 | Multilevel telescopic magnetorheological damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202007855U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128232A (en) * | 2011-02-25 | 2011-07-20 | 谭和平 | Multilevel retractable type magnetorheological damping device |
| CN103307173A (en) * | 2013-06-25 | 2013-09-18 | 蒋超 | Working method of buffer suitable for attracting sliding block in impact process |
| CN104930107A (en) * | 2013-06-25 | 2015-09-23 | 丁雪强 | Three-level buffer |
| CN104963988A (en) * | 2013-06-25 | 2015-10-07 | 丁雪强 | Bumper not prone to damage |
| CN105003585A (en) * | 2015-06-12 | 2015-10-28 | 重庆材料研究院有限公司 | Variable-section piston type magnetorheological vibration reducer |
| CN105041953A (en) * | 2013-06-25 | 2015-11-11 | 蒋超 | Buffer which is suitable for controlling buffering sequence step by step and is controlled by processor module |
| CN105156538A (en) * | 2013-07-29 | 2015-12-16 | 蒋红娟 | Work method for hydraulic forming brick making machine controlled by processor module |
| CN107387651A (en) * | 2017-07-18 | 2017-11-24 | 福州大学 | A kind of variation rigidity MR damper and its control method |
-
2011
- 2011-02-25 CN CN2011200475939U patent/CN202007855U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128232A (en) * | 2011-02-25 | 2011-07-20 | 谭和平 | Multilevel retractable type magnetorheological damping device |
| CN102128232B (en) * | 2011-02-25 | 2012-07-25 | 重庆仪表材料研究所 | Multilevel retractable type magnetorheological damping device |
| CN104963991A (en) * | 2013-06-25 | 2015-10-07 | 丁雪强 | Buffer automatically attracting and releasing sliding block |
| CN103307173B (en) * | 2013-06-25 | 2015-06-03 | 钱秀英 | Working method of buffer suitable for attracting sliding block in impact process |
| CN104930107A (en) * | 2013-06-25 | 2015-09-23 | 丁雪强 | Three-level buffer |
| CN104963988A (en) * | 2013-06-25 | 2015-10-07 | 丁雪强 | Bumper not prone to damage |
| CN103307173A (en) * | 2013-06-25 | 2013-09-18 | 蒋超 | Working method of buffer suitable for attracting sliding block in impact process |
| CN104989767A (en) * | 2013-06-25 | 2015-10-21 | 蒋超 | Buffer working method |
| CN105041953A (en) * | 2013-06-25 | 2015-11-11 | 蒋超 | Buffer which is suitable for controlling buffering sequence step by step and is controlled by processor module |
| CN105156538A (en) * | 2013-07-29 | 2015-12-16 | 蒋红娟 | Work method for hydraulic forming brick making machine controlled by processor module |
| CN105003585A (en) * | 2015-06-12 | 2015-10-28 | 重庆材料研究院有限公司 | Variable-section piston type magnetorheological vibration reducer |
| CN105003585B (en) * | 2015-06-12 | 2017-03-01 | 重庆材料研究院有限公司 | Variable cross-section piston magneto-rheological vibroshock |
| CN107387651A (en) * | 2017-07-18 | 2017-11-24 | 福州大学 | A kind of variation rigidity MR damper and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111012 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |