CN201714899U - Adaptive dual control magnetorheological damper - Google Patents
Adaptive dual control magnetorheological damper Download PDFInfo
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- CN201714899U CN201714899U CN2010201448370U CN201020144837U CN201714899U CN 201714899 U CN201714899 U CN 201714899U CN 2010201448370 U CN2010201448370 U CN 2010201448370U CN 201020144837 U CN201020144837 U CN 201020144837U CN 201714899 U CN201714899 U CN 201714899U
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- piston
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- clutch release
- slave cylinder
- electric generator
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Abstract
The utility model discloses an adaptive dual control magnetorheological damper which comprises a working cylinder, a piston with large and small holes at a core part, a piston rod and a built-in linear generator. Two sets of magnet exciting coils are wound at the middle part of the piston. When the piston rod drives the piston to move in the working cylinder, the piston drives a rotor of the built-in linear generator fixed at the bottom of the large hole of the piston to do linear movement in a stator to generate electric energy, the electric energy is transmitted to one set of the magnet exciting coils of the piston, and the piston of the adaptive dual control magnetorheological damper generates magnetic field to generate damping force. As the electric energy output by the built-in linear generator is directly proportional to the speed of movement of the piston in the working cylinder, the adaptive dual control magnetorheological damper can automatically adjust the size of the output damping force according to the movement speed of the piston. The adaptive dual control magnetorheological damper can also control the other set of the magnet exciting coils on the piston of the adaptive dual control magnetorheological damper.
Description
Technical field
The utility model belongs to a kind of MR damper, is specifically related to a kind of adaptive double-control magneto-rheological damper.
Background technique
MR damper is 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, therefore, common MR damper must be equipped with the control power supply and could realize MR damper is exported the purpose that damping force is regulated; People have developed permanent magnet type magnetic current variable damper in order to reduce MR damper again to the dependence of control power supply, although can not needing to control power supply, permanent magnet type magnetic current variable damper works alone, be difficult to adapt to different vibration damping occasions but the output performance of its damping force is single, for this reason, people have developed the MR damper that carries electricity generating device again, as Chinese patent application number number be: 200910103744.5 " a kind of self-powered MR damper " and application number number are: 200710034309.2 " self-power-supply magnetorheological intelligent vibration damping device ", although these the two kinds MR damper that carry electricity generating device can solve the power issue of MR damper, but they all have rotational motion mechanism and complex structure, and break down in case carry electricity generating device, this MR damper will lose damping function fully, therefore, to carry the reliability of MR damper of electricity generating device not high for this class.
Summary of the invention
At existing MR damper complicated in mechanical structure and the not high deficiency of reliability that carries electricity generating device, the utility model proposes a kind of adaptive double-control magneto-rheological damper, the advantage of adaptive double-control magneto-rheological damper is: the power supply that this damper only need utilize its built-in linear electric generator to provide just can make the damping force of its output adapt to the needs of outside vibration damping automatically, can utilize outside control power supply to come the damping force of its output is regulated again, therefore, the reliability of adaptive double-control magneto-rheological damper is higher, and adaptive double-control magneto-rheological damper adopts built-in linear electric generator that electric energy is provided, and does not have rotational motion mechanism thereby simple in structure.
The technical solution of the utility model is as follows:
A kind of adaptive double-control magneto-rheological damper, it comprises clutch release slave cylinder, piston, piston rod and built-in linear electric generator; The piston that the middle part is wound with two groups of field coils is contained in the clutch release slave cylinder, and field coil adds protective layer outward, and this protective layer flushes with the piston periphery wall, leaves the mobile gap of magnetic flow liquid between piston periphery wall and protective layer and the clutch release slave cylinder inner circle wall; There is the through hole that is interconnected at the center of piston rod and piston, and the central through bore of piston is big small structure, and the entrance part of piston macropore is provided with seal arrangement and bearing; One end of piston rod and an end of piston are fixed, and the other end of piston rod stretches out from clutch release slave cylinder one end by the seal arrangement and the bearing of clutch release slave cylinder end face; Be full of magnetic flow liquid in the clutch release slave cylinder.Also be provided with the external diameter built-in linear electric generator identical in the clutch release slave cylinder with the external diameter of piston rod, in the macropore that the seal arrangement and the bearing of one end of built-in linear electric generator urceolus by piston macropore entrance part stretches into piston, the other end of built-in linear electric generator urceolus is fixed on the bottom of clutch release slave cylinder, and the mover of built-in linear electric generator is fixed on the bottom of piston macropore.
The mover of built-in linear electric generator is bonding or connect or embed a cylindrical permanent magnet and form at an end of a cylindrical not magnetic conductive metal, and cylindrical permanent magnet axially is being divided into two magnetic poles; The stator of built-in linear electric generator by in the magnetic conductive metal cylinder axially on embed 2 groups of shapes, size, solenoid coil that the number of turn is identical constitutes, these 2 groups of coils adopt the series connection of coiling reversal connection in the same way; The external diameter of cylindrical permanent magnet is less than the internal diameter of stator cylinder shape coil and leave the free gap.The lighting outlet of one group of field coil at piston middle part leads to outside the clutch release slave cylinder by the piston rod center hole, and another group field coil at piston middle part is perfectly straight to be connect with coil on the built-in linear generating machine stator and be connected.
The mover of built-in linear electric generator also can by cylindrical metal axially on be wound with 2 groups of shapes, size, coil that the number of turn is identical constitutes, these 2 groups of coils adopt the series connection of coiling reversal connection in the same way; The stator of built-in linear electric generator then is to be embedded in the magnetic conductive metal urceolus by a cylindrical shape permanent magnet to constitute, and the cylindrical shape permanent magnet is divided into two magnetic poles in the axial direction; The internal diameter of cylindrical shape permanent magnet is greater than the external diameter of mover coil and leave the free gap.The lighting outlet of one group of field coil at piston middle part leads to outside the clutch release slave cylinder by the piston rod center hole, and another group field coil at piston middle part is perfectly straight to be connect with coil on the built-in linear electric generator mover and be connected.
The existing structure that is coil with built-in linear electric generator mover, implementation procedure of the present utility model is described: when piston rod promotion piston moves in clutch release slave cylinder, piston rod enter or the cylinder of deactivating in, built-in linear electric generator also enters or withdraws from the macropore of piston, because of the external diameter of piston rod identical with built-in linear electric generator, so the actual volume when piston moves in clutch release slave cylinder in the clutch release slave cylinder remains unchanged;
When piston rod promotion piston moves in clutch release slave cylinder, the mover that piston drives the built-in linear electric generator that is fixed on piston macropore bottom moves in stator, make 2 groups of coils being on the mover under different magnetic poles cutting magnetic line and produce induced potential in stator, because 2 groups of coils on the mover adopt the series connection of coiling reversal connection in the same way, so the induced potential of built-in linear electric generator output is the closing of 2 groups of coil-induced electromotive forces on the mover; Because of the output terminal of 2 groups of coils on the mover directly is connected with one group of field coil of piston, so this induced potential will make in one group of field coil of piston and produce induction current, this induction current generates an electromagnetic field piston; Again because the induced potential of built-in linear electric generator output is relevant with the speed of mover coil cutting magnetic line, that is: with built-in linear electric generator mover and stator between relative velocity relevant, so, piston is in clutch release slave cylinder during with a certain movement velocity, to make built-in linear electric generator produce a certain induced potential, this electromotive force is applied on one group of field coil of piston, to on piston external diameter and clutch release slave cylinder internal diameter gap, produce certain magnetic field, this magnetic field uprises the viscosity of the magnetic flow liquid in the gap, the damping force that the piston that moves in clutch release slave cylinder is subjected to becomes big, and the speed that this damping force can make piston move in clutch release slave cylinder again reduces; Therefore, when the speed that piston moves in clutch release slave cylinder is big more, the induced potential that built-in linear electric generator produces is high more, make the induction current of one group of field coil by piston big more, the magnetic intensity that piston is produced is high more, make the magnetic flow liquid viscosity in piston external diameter and the clutch release slave cylinder internal diameter gap high more, damping force suffered when piston is moved in clutch release slave cylinder is also big more, like this, the speed that piston moves in clutch release slave cylinder just reduces soon more, that is to say that damping force suffered when piston moves is directly proportional with the speed that piston moves in clutch release slave cylinder in clutch release slave cylinder, vice versa, that is: this damper can be adjusted the size of its output damping force automatically according to the movement velocity of piston, makes the damping force of adaptive double-control magneto-rheological damper output and the movement velocity of piston that certain adaptivity just arranged.When piston rod promotion piston was done acceleration or retarded motion in clutch release slave cylinder, situation was similar with it, and the adaptive double-control magneto-rheological damper function that built-in linear electric generator mover is cylindrical permanent magnet is also identical with it, all repeats no more herein.
Adopt external power supply identical with common MR damper to the control action of another group field coil on the adaptive double-control magneto-rheological damper piston, except the damping force that can make adaptive double-control magneto-rheological damper output obtains the wider adjusting, the adaptive double-control magneto-rheological damper functional reliability is greatly improved.Since two groups of field coils on the adaptive double-control magneto-rheological damper piston by two independently power supply control, therefore, compare with the existing MR damper that carries electricity generating device, adaptive double-control magneto-rheological damper of the present utility model has following advantage:
1, the damping force of adaptive double-control magneto-rheological damper output can adapt to the needs of outside vibration damping automatically.
2, the mechanical structure of adaptive double-control magneto-rheological damper reliability simple and work is higher.
3, two of adaptive double-control magneto-rheological damper groups of field coils respectively by two two independently power supply control, its control mode is more flexible.
Description of drawings
Fig. 1 is that the utility model mover is a kind of structural representation of coil.
Fig. 2 is built-in linear electric generator working principle schematic representation, and among Fig. 2, L1 and L2 are 2 groups of coils of mover (or stator), and E is the induced potential that coil is in operation and produces, V be built-in linear electric generator mover with stator between relative motion speed.
Fig. 3 is the generalized section of Fig. 1
Fig. 4 is that the utility model mover is a kind of structural representation of permanent magnet.
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, piston 2 is contained in the clutch release slave cylinder 1, the middle part of piston 2 is wound with two groups of field coils, that is: field coil 8 and field coil 9, outside field coil, add protective layer 6, leave the gap 7 that magnetic flow liquid flows between the inner circle wall of the periphery wall of piston 2 and protective layer 6 and clutch release slave cylinder 1; Piston rod 22 has the through hole that is interconnected with the center of piston 2, and the central through bore of piston is big small structure, is provided with seal arrangement 12 and bearing 11 at the entrance part of piston macropore 26; One end of piston rod 22 and an end of piston 2 are fixed by screw thread, and seal arrangement 21 and the bearing 20 of the other end of piston rod 22 by clutch release slave cylinder 1 end face stretches out from an end of clutch release slave cylinder 1; Also be provided with the built-in linear electric generator 27 identical in the clutch release slave cylinder 1 with the external diameter of piston rod 22, one end of the urceolus 13 of built-in linear electric generator 27 stretches in the piston macropore 26 by the seal arrangement 12 and the bearing 11 of piston macropore 26 entrance parts, the urceolus 13 of built-in linear electric generator 27 is fixed on the bottom and safety cover 31 of clutch release slave cylinder 1, the mover 30 of built-in linear electric generator 27 is the end formations that cylinder-shaped iron core 17 are embedded into cylindrical not magnetic conductive metal 10, the other end of cylindrical not magnetic conductive metal 10 is fixed on the bottom of piston macropore 26, on the iron core 17 of mover 30, be fixed with 2 groups of shapes, size, the coil 16 and 18 that the number of turn is identical, stripper loop 32 is installed between coil 16 and 18, coil 16 and 18 adopts the series connection of coiling reversal connection in the same way, and the length of each coil equates (see figure 2) with the working stroke of piston 2 in clutch release slave cylinder 1; The degree of depth of piston macropore 26 is more than or equal to the length of built-in linear electric generator 27 part in clutch release slave cylinder 1; Be full of magnetic flow liquid 19 in the clutch release slave cylinder 1; The urceolus 13 of piston 2, clutch release slave cylinder 1, iron core 17 and built-in linear electric generator 27 adopts the magnetic conductive metal material.The stator 28 of built-in linear electric generator 27 is to be embedded in the urceolus 13 by a cylindrical shape permanent magnet 14 to constitute, cylindrical shape permanent magnet 14 is divided into two magnetic poles in the axial direction, the length of cylindrical shape permanent magnet 14 is 3 times of the working stroke of piston 2 in clutch release slave cylinder 1, and all or part of of two groups of coils on the mover is under the different magnetic poles; The internal diameter of cylindrical shape permanent magnet 14 is greater than the external diameter of the coil on the mover 30 16 and 18 and leave free gap 15.The lighting outlet of one group of field coil 8 at piston 2 middle parts leads to by piston rod center hole 23 that clutch release slave cylinder 1 is outer to join with control power supply 29, another group field coil 9 at piston 2 middle parts by lead-in wire groove 5 directly with built-in linear electric generator 27 movers 30 on coil 16 be connected with 18.
When piston rod 22 promotion pistons 2 move in clutch release slave cylinder 1, the mover 30 that piston 2 drives the built-in linear electric generator 27 that is fixed on piston macropore 26 bottoms moves in stator 28, make 2 groups of coils (coil 16 and 18) of being on the mover 30 under different magnetic poles cutting magnetic line and produce induced potential in stator 28, because the coil 16 and 18 on the mover 30 adopts the series connection of coiling reversal connection in the same way, so the induced potential of built-in linear electric generator 27 outputs is closing of coil 16 on the mover 30 and 18 induced potentials; Because of the output terminal of 2 groups of coils on the mover 30 directly is connected with one group of field coil of piston 2, so this induced potential will make in one group of field coil 9 of piston 2 and produce induction currents, this induction current generates an electromagnetic field piston 2; Again because the speed of the magnetic line of force on the induced potential of built-in linear electric generator 27 outputs and the mover 30 coil cutting stators 28 is relevant, that is: relevant with the mover 30 of built-in linear electric generator 27 with the relative velocity between the stator 28, so, piston 2 is in clutch release slave cylinder 1 during with a certain movement velocity, to make built-in linear electric generator 27 produce a certain induced potential, this electromotive force is applied on one group of field coil 9 of piston 2 will produce certain magnetic field on piston 2 external diameters and clutch release slave cylinder 1 internal diameter gap 7, this magnetic field uprises the viscosity of the magnetic flow liquid in the gap 7, the damping force that the piston 2 of motion is subjected to becomes big, the speed reduction that this damping force can make piston 2 move again clutch release slave cylinder 1 in; Therefore, when the speed that piston 2 moves in clutch release slave cylinder 1 is big more, the induced potential that built-in linear electric generator 27 produces is high more, make the induction current of one group of field coil 9 by piston 2 big more, the magnetic intensity that piston 2 is produced is high more, make the magnetic flow liquid viscosity in piston 2 external diameters and the clutch release slave cylinder 1 internal diameter gap 7 high more, damping force suffered when piston 2 is moved in clutch release slave cylinder 1 is also big more, like this, the speed that piston 2 moves in clutch release slave cylinder 1 just reduces soon more, that is to say that damping force suffered when piston 2 moves is directly proportional with the speed that piston 2 moves in clutch release slave cylinder 1 in clutch release slave cylinder 1, vice versa, that is: adaptive double-control magneto-rheological damper can be adjusted the size of its output damping force automatically according to the movement velocity of piston 2, and the damping force that adaptive double-control magneto-rheological damper is exported can adapt to the variation of the movement velocity of piston 2 automatically.The control action of another group field coil 8 of 29 pairs of pistons 2 of external control power supply is identical with common MR damper, repeats no more herein.
Claims (3)
1. adaptive double-control magneto-rheological damper, it comprises clutch release slave cylinder, piston, piston rod and built-in linear electric generator, it is characterized in that: described piston is contained in the clutch release slave cylinder, the piston middle part is wound with two groups of field coils, outside field coil, add protective layer, this protective layer flushes with the piston periphery wall, leave the mobile gap of magnetic flow liquid between piston periphery wall and protective layer and the clutch release slave cylinder inner circle wall, there is the through hole that is interconnected at the center of piston rod and piston, and the central through bore of piston is big small structure, the entrance part of piston macropore is provided with seal arrangement and bearing, one end of piston rod and an end of piston are fixed, seal arrangement and the bearing of the other end of piston rod by the clutch release slave cylinder end face stretches out from an end of clutch release slave cylinder, also be provided with the external diameter built-in linear electric generator identical in the clutch release slave cylinder with the external diameter of piston rod, in the macropore that the seal arrangement and the bearing of one end of built-in linear electric generator urceolus by piston macropore entrance part stretches into piston, the urceolus of built-in linear electric generator is fixed on the other end of clutch release slave cylinder, the mover of built-in linear electric generator is fixed on the bottom of piston macropore, is full of magnetic flow liquid in the clutch release slave cylinder; The urceolus of piston, clutch release slave cylinder and built-in linear electric generator adopts the magnetic conductive metal material.
2. as claims 1 described a kind of adaptive double-control magneto-rheological damper, it is characterized in that: the mover of described built-in linear electric generator is bonding or riveted joint or embed a cylindrical permanent magnet and form at an end of a cylindrical not magnetic conductive metal, cylindrical permanent magnet axially is being divided into two magnetic poles, the stator of built-in linear electric generator by in the magnetic conductive metal cylinder axially on embed 2 groups of shapes, size, the solenoid coil that the number of turn is identical constitutes, these 2 groups of coils adopt coiling reversal connection in the same way series connection, and the external diameter of cylindrical permanent magnet is less than the internal diameter of stator cylinder shape coil and leave the free gap; The lighting outlet of one group of field coil at piston middle part leads to outside the clutch release slave cylinder by the piston rod center hole, and another group field coil at piston middle part is perfectly straight to be connect with coil on the built-in linear generating machine stator and be connected.
3. as claims 1 described a kind of adaptive double-control magneto-rheological damper, it is characterized in that: the stator of described built-in linear electric generator is to be embedded in the magnetic conductive metal urceolus by a cylindrical shape permanent magnet to constitute, the cylindrical shape permanent magnet is divided into two magnetic poles in the axial direction, the mover of built-in linear electric generator be by cylindrical magnetic conductive metal axially on be wound with 2 groups of shapes, size, coil that the number of turn is identical constitutes, these 2 groups of coils adopt coiling reversal connection in the same way series connection, and the internal diameter of cylindrical shape permanent magnet is greater than the external diameter of mover coil and leave the free gap; The lighting outlet of one group of field coil at piston middle part leads to outside the clutch release slave cylinder by the piston rod center hole, and another group field coil at piston middle part is perfectly straight to be connect with coil on the built-in linear electric generator mover and be connected.
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| CN2010201448370U CN201714899U (en) | 2010-03-30 | 2010-03-30 | Adaptive dual control magnetorheological damper |
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| CN2010201448370U CN201714899U (en) | 2010-03-30 | 2010-03-30 | Adaptive dual control magnetorheological damper |
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| CN201714899U true CN201714899U (en) | 2011-01-19 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832356A (en) * | 2010-03-30 | 2010-09-15 | 谭晓婧 | Self-adaptive double control magneto-rheological damper |
| 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 |
| CN102278411A (en) * | 2011-06-03 | 2011-12-14 | 嘉兴学院 | Self-powered magnetic current changing damper and vibration damping system thereof |
| WO2012016488A1 (en) * | 2010-08-05 | 2012-02-09 | The Chinese University Of Hong Kong | Self-powered and self-sensing magnetorheological dampers |
| CN110107640A (en) * | 2019-05-27 | 2019-08-09 | 江西科技学院 | Dampening arrangement and its control method |
| WO2020192144A1 (en) | 2019-03-22 | 2020-10-01 | 中车株洲电力机车有限公司 | Rail train body and fabrication method therefor |
-
2010
- 2010-03-30 CN CN2010201448370U patent/CN201714899U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832356A (en) * | 2010-03-30 | 2010-09-15 | 谭晓婧 | Self-adaptive double control magneto-rheological damper |
| CN101832356B (en) * | 2010-03-30 | 2011-10-12 | 谭晓婧 | Self-adaptive double control magneto-rheological damper |
| WO2012016488A1 (en) * | 2010-08-05 | 2012-02-09 | The Chinese University Of Hong Kong | Self-powered and self-sensing magnetorheological dampers |
| JP2013539524A (en) * | 2010-08-05 | 2013-10-24 | ザ チャイニーズ ユニバーシティー オブ ホンコン | Self-powered / self-sensitive magnetic fluid damper |
| 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 |
| CN102278411A (en) * | 2011-06-03 | 2011-12-14 | 嘉兴学院 | Self-powered magnetic current changing damper and vibration damping system thereof |
| WO2020192144A1 (en) | 2019-03-22 | 2020-10-01 | 中车株洲电力机车有限公司 | Rail train body and fabrication method therefor |
| CN110107640A (en) * | 2019-05-27 | 2019-08-09 | 江西科技学院 | Dampening arrangement and its control method |
| CN110107640B (en) * | 2019-05-27 | 2024-02-09 | 江西科技学院 | Shock absorber device and control method thereof |
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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: 20110119 Effective date of abandoning: 20111012 |