CN201953896U - Single-cylinder differential type magnetorheological damper - Google Patents
Single-cylinder differential type magnetorheological damper Download PDFInfo
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- CN201953896U CN201953896U CN2011200399954U CN201120039995U CN201953896U CN 201953896 U CN201953896 U CN 201953896U CN 2011200399954 U CN2011200399954 U CN 2011200399954U CN 201120039995 U CN201120039995 U CN 201120039995U CN 201953896 U CN201953896 U CN 201953896U
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- pistons
- piston
- clutch release
- release slave
- slave cylinder
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Abstract
The utility model discloses a single-cylinder differential type magnetorheological damper, which comprises a U-shaped working cylinder, two same pistons, two same piston rods and a differential gear. The two same pistons are arranged at both ends in the U-shaped working cylinder respectively; magnetorheological liquid is filled in the U-shaped working cylinder; the outer diameter of each of the pistons is smaller than the inner diameter of the U-shaped working cylinder, and a magnetorheological liquid flow gap is reserved; one end of each of the two same piston rods is fixed to one end of the corresponding one of the two same pistons, and the other ends of the two same piston rods stretch out from both ends of the U-shaped working cylinder through sealing devices and bearings which are arranged on two end faces of the U-shaped working cylinder; the piston rods of the two same pistons are provided with racks; the two same pistons are engaged with the differential gear through the racks on the piston rods; excitation coils are wound on the two same pistons; and direct-acting and rotary damping forces output by the single-cylinder differential type magnetorheological damper are changed by adjusting a current input into the excitation coils.
Description
Technical field
The utility model belongs to a kind of MR damper, is specifically related to a kind of single cylinder differential type MR damper.
Background technique
MR damper is as a kind of intelligent vibration damping device, the size of its damping force can be carried out remote stepless by the control power supply and be regulated, but no matter existing MR damper is rotary or direct-acting type, a kind of damping force of form all can only be provided, that is: revolving type magnetic rheologic damper can only provide damping due to rotation power, the direct-acting type MR damper can only provide straight dynamic damping power, and single cylinder differential type MR damper of the present utility model can provide damping due to rotation power on the axle of differential gear, and on piston rod, can provide straight dynamic damping power, thereby expanded the The Applications of Magnetorheological Dampers scope.
Summary of the invention
The purpose of this utility model is to propose a kind of novel MR damper, that is: single cylinder differential type MR damper, because single cylinder differential type MR damper can provide straight moving and rotate the damping force of two kinds of forms simultaneously, thereby Applicable scope is more extensive.
The technical solution of the utility model is as follows:
A kind of single cylinder differential type MR damper, it comprises U type clutch release slave cylinder, two identical pistons, two identical piston rods and differential gear, two identical pistons are installed in the two ends in the U type clutch release slave cylinder respectively, in U type clutch release slave cylinder, be full of magnetic flow liquid, piston external diameter is less than the internal diameter of U type clutch release slave cylinder and leave the magnetic flow liquid gap of flowing, one end of two identical piston rods is fixed with an end of two identical pistons respectively, the other end of two identical piston rods stretches out from the two ends of U type clutch release slave cylinder by the seal arrangement and the bearing of two end faces of U type clutch release slave cylinder respectively, and on two identical piston rods, all have tooth bar, two identical pistons all are wound with field coil by tooth bar on two identical piston rods and differential gear engagement on two identical pistons.
Function of the present utility model is achieved in that when a piston rod promotion piston enters an end of U type clutch release slave cylinder, tooth bar on this piston rod is with the differential gear rotation that promotes to be engaged with, the rotation of differential gear drives another piston rod and the piston that are engaged with again and withdraws from the other end of U type clutch release slave cylinder, simultaneously, because two pistons and piston rod are identical, so, when piston rod drive piston moves, can keep the constancy of volume in the U type clutch release slave cylinder in U type clutch release slave cylinder.
When the field coil no electric circuit on the piston, U type clutch release slave cylinder inwall and outside piston between week the magnetic intensity in the gap be zero, the viscosity of magnetic flow liquid is lower in the gap, damping force when piston rod drives piston and move in U type clutch release slave cylinder is less, and the damping due to rotation power of the tooth bar on the piston rod when promoting differential gear and rotating is less; After the energising of the field coil on the piston, make the increase of the magnetic intensity in the gap between week of U type clutch release slave cylinder inwall and outside piston, thereby make the viscosity of the magnetic flow liquid in this gap higher, damping force when piston rod drive piston is moved in U type clutch release slave cylinder is bigger, and the damping due to rotation power that promotes the piston rod upper rack when making the differential gear rotation is bigger.Therefore, enter the size of electric current in the field coil on the piston by adjustment, the straight dynamic damping power in the time of can driving piston and move in U type clutch release slave cylinder piston rod and the size of differential gear damping due to rotation power obtain adjusting, and make the damping force of single cylinder differential type MR damper controlled.Therefore, compare with existing MR damper, single cylinder differential type MR damper of the present utility model not only can provide straight dynamic damping power, and damping due to rotation power can also be provided simultaneously, makes the The Applications of Magnetorheological Dampers scope more extensive.
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.
Fig. 3 is the generalized section that differential gear is installed among Fig. 2.
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, two ends in the U type clutch release slave cylinder 1 are separately installed with two identical pistons 4 and piston 12, be full of magnetic flow liquid 25 in the U type clutch release slave cylinder 1, the external diameter of piston 4 and piston 12 is less than the internal diameter of U type clutch release slave cylinder 1 and leave gap 2 and the gap 14 that magnetic flow liquid 25 flows, one end of two identical piston rods 7 and piston rod 17 is fixed with an end of two identical pistons 4 and piston 12 respectively, the other end of two identical piston rods 7 and piston rod 17 seal arrangement 9 of the end face 5 by U type clutch release slave cylinder 1 and end face 13 and seal arrangement 16 and bearing 8 and bearing 15 respectively stretches out from the two ends of U type clutch release slave cylinder 1, all have tooth bar 22 and tooth bar 19 on the piston rod 7 of two identical pistons 4 and piston 12 and the piston rod 17, two identical pistons 4 and piston 12 all are wound with field coil 3 and field coil 11 by the tooth bar 22 on piston rod 7 and piston rod 17 bars and tooth bar 19 and differential gear 20 engagements on two identical pistons 4 and piston 12.
Referring to Fig. 2 and Fig. 3, U type clutch release slave cylinder 1 is fixed on the base plate 24, the gear shaft 21 of differential gear 20 is fixed on the base plate 24 by bearing 26, the field coil 3 on piston 4 and the piston 12 and the lighting outlet 10 and 18 of field coil 11, draw from the center hole 6 and 27 of piston 4 and piston 12, and with control power supply 23 companies of linking.
When promoting piston rod 7 and make piston 4 enter a end in the U type clutch release slave cylinder 1, tooth bar 22 on this piston rod 7 is rotated counterclockwise the differential gear 20 that promotes to be engaged with, and the rotation of differential gear 20 drives the piston rod 17 that is engaged with again withdraws from piston 12 in the other end of U type clutch release slave cylinder 1; In other words, because tooth bar 22 on piston rod 7 and the piston rod 17 and tooth bar 19 and differential gear 20 engagements, when rotating counterclockwise the gear shaft 21 of differential gear 20, differential gear 20 also drives piston rod 17 piston 12 is withdrawed from the other end of U type clutch release slave cylinder 1 when driving piston rod 7 and making piston 4 enter in the end of U type clutch release slave cylinder 1.
When control power supply 23 does not have output current, that is: when field coil 3 on piston 4 and the piston 12 and field coil 11 no electric circuits, magnetic intensity in gap 2 between U type clutch release slave cylinder 1 internal diameter and piston 4 and piston 12 external diameters and the gap 14 is zero, the viscosity of the magnetic flow liquid 25 in gap 2 and the gap 14 is lower, the damping force that is subjected to when promotion piston rod 7 makes piston 4 enter in the U type clutch release slave cylinder 1 is lower, tooth bar 22 on the piston rod 7 is rotated counterclockwise the differential gear 20 that promotes to be engaged with, and the rotation of differential gear 20 drives the damping force that is subjected to when the piston rod 17 that is engaged with and piston 12 withdraw from again in the other end of U type clutch release slave cylinder 1 also lower; In other words, the damping force that the gear shaft 21 that rotates counterclockwise differential gear 20 is subjected to when making piston rod 7 drive in the end that pistons 4 enter U type clutch release slave cylinder 1 is lower, it is also lower that while differential gear 20 also drives the damping force that is subjected to when piston rod 17 withdraws from piston 12 in the other end of U type clutch release slave cylinder 1, that is: the output of single cylinder differential type MR damper is straight moving lower with damping due to rotation power.
Behind control power supply 23 output currents, that is: after field coil 3 on piston 4 and the piston 12 and field coil 11 energisings, magnetic intensity in gap 2 between U type clutch release slave cylinder 1 internal diameter and piston 4 and piston 12 external diameters and the gap 14 is bigger, the viscosity of the magnetic flow liquid 25 in gap 2 and the gap 14 is higher, the damping force that is subjected to when promotion piston rod 7 makes piston 4 enter in the U type clutch release slave cylinder 1 is higher, tooth bar 22 on the piston rod 7 is rotated counterclockwise the differential gear 20 that promotes to be engaged with, and the rotation of differential gear 20 drives the damping force that is subjected to when the piston rod 17 that is engaged with and piston 12 withdraw from again in the other end of U type clutch release slave cylinder 1 also higher; In other words, it is higher that the gear shaft 21 that rotates counterclockwise differential gear 20 makes piston rod 7 drive the damping force that is subjected to when pistons 4 enter a end in the U type clutch release slave cylinder 1, it is also higher that differential gear 20 also drives the damping force that is subjected to when piston rod 17 withdraws from the other end of piston 12 in U type clutch release slave cylinder 1 simultaneously, that is: the directly moving and damping due to rotation power of single cylinder differential type MR damper output is higher.
When the output current size of adjusting control power supply 23, can make the directly moving and damping due to rotation power of single cylinder differential type MR damper output controlled.When promote piston rod 17 make piston 12 enter in the U type clutch release slave cylinder 1 or situation when clockwise rotating the gear shaft 21 of differential gear 20 in contrast, repeat no more herein.
Claims (3)
1. single cylinder differential type MR damper, it comprises U type clutch release slave cylinder, two identical pistons, two identical piston rods and differential gear, it is characterized in that: described two identical pistons are installed in the two ends in the U type clutch release slave cylinder respectively, in U type clutch release slave cylinder, be full of magnetic flow liquid, the external diameter of two identical pistons is less than the internal diameter of U type clutch release slave cylinder and leave the magnetic flow liquid gap of flowing, one end of two identical piston rods is fixed with an end of two identical pistons respectively, and the other end of two identical piston rods stretches out from the two ends of U type clutch release slave cylinder by the seal arrangement and the bearing of two end faces of U type clutch release slave cylinder respectively.
2. a kind of single cylinder differential type MR damper as claimed in claim 1 is characterized in that: all have tooth bar on described two identical piston rods, two identical pistons are by tooth bar on two identical piston rods and differential gear engagement.
3. a kind of single cylinder differential type MR damper as claimed in claim 1 is characterized in that: all be wound with field coil on described two identical pistons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200399954U CN201953896U (en) | 2011-02-17 | 2011-02-17 | Single-cylinder differential type magnetorheological damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200399954U CN201953896U (en) | 2011-02-17 | 2011-02-17 | Single-cylinder differential type magnetorheological damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201953896U true CN201953896U (en) | 2011-08-31 |
Family
ID=44498006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200399954U Expired - Lifetime CN201953896U (en) | 2011-02-17 | 2011-02-17 | Single-cylinder differential type magnetorheological damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201953896U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094929A (en) * | 2011-02-17 | 2011-06-15 | 谭晓婧 | Single-cylinder differential magnetorheological damper |
-
2011
- 2011-02-17 CN CN2011200399954U patent/CN201953896U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094929A (en) * | 2011-02-17 | 2011-06-15 | 谭晓婧 | Single-cylinder differential magnetorheological damper |
| CN102094929B (en) * | 2011-02-17 | 2012-05-23 | 谭晓婧 | Single-cylinder differential magnetorheological damper |
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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: 20110831 Effective date of abandoning: 20120523 |