CN102278410A - Magneto-rheological vibration damper without externally-connected power supply - Google Patents
Magneto-rheological vibration damper without externally-connected power supply Download PDFInfo
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- CN102278410A CN102278410A CN2011101513148A CN201110151314A CN102278410A CN 102278410 A CN102278410 A CN 102278410A CN 2011101513148 A CN2011101513148 A CN 2011101513148A CN 201110151314 A CN201110151314 A CN 201110151314A CN 102278410 A CN102278410 A CN 102278410A
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Abstract
The invention provides a magneto-rheological vibration damper without an externally-connected power supply, comprising an earring, a supporting disc, a piezoelectric pile structure, a lower gland, a bottom end cover, an air bag, a cylinder body, a piston with winded coils, a piston rod, an upper end cover, a spring, an upper gland, a locking member, and an electric energy conditioning module. Wherein, one end of the spring is connected with a piezoelectric generating device, the other end is connected with the piston rod, when the piston rod moves up and down along the cylinder body under outside vibration, external force is applied to the piezoelectric generating device via pressing of a spring mechanism. Under the effect of pressure, the piezoelectric generating device generates electric energy, and the electric energy conditioning module converts high voltage AC electric energy generated by the piezoelectric generating device to low voltage DC electric energy, and applies the low voltage DC electric energy to the piston coils to generate an excitation magnetic field, make magneto-rheological fluid solidified, and improve damping force, thereby reducing vibration of the piston rod. compared with a conventional magneto-rheological damper structure, the magneto-rheological vibration damper without an externally-connected power supply can capture outside vibration energy to supply power to itself, forming a self-energy-providing magneto-rheological vibration damper system.
Description
Technical field
The present invention relates to a kind of magneto-rheological vibration damper, be specifically related to a kind of magneto-rheological vibration damper of dispense with outer connecting power.
Background technique
Magneto-rheological vibration damper with magnetorheological liquid level working medium is a kind of half initiating structure vibration control apparatus of function admirable, and it is simple in structure, response is fast, dynamic range is big, good endurance.As intelligent vibration control gear of new generation, magneto-rheological vibration damper had both had the reliability of Passive Control, strong adaptability with ACTIVE CONTROL is arranged, can reach the control effect very approaching with the ACTIVE CONTROL system by certain control law, be a kind of control technique with fine future in engineering applications.Magnetic flow liquid needs magnetic field excitation, and magneto-rheological vibration damper is to encourage magnetic flow liquid by the electromagnetic field of applying the fixed current generation for its piston coil, realizes the adjustable purpose of damping force.Because magneto-rheological vibration damper when work needs extraneous electric energy input, this will make whole system become complicated, has increased the application cost of magnetic converting technique, particularly in place that a large amount of magneto-rheological vibration dampers of needs such as construction engineering jointly control.Simultaneously, rely on the reliability of external power supply input also can attenuating magneto-rheological vibration damper, increase the risk of control fails.Generally speaking, rely on extraneous power supply input can make magnetorheological half ACTIVE CONTROL system become complicated, cost increases, and reliability lowers, thereby has hindered the extensive popularization and application of magnetic converting technique widely.
Summary of the invention
Need the objective of the invention is the deficiency of external power supply input at common magneto-rheological vibration damper, a kind of magneto-rheological vibration damper of dispense with outer connecting power input has been proposed, on function, piezoelectric material and magnetic flow liquid are combined, by spring mechanism extraneous vibration power is loaded on the piezoelectric generating device, utilize the direct piezoelectric effect of piezoelectric material to collect the external environment vibrational energy, it is transformed into electric energy, and electric energy is applied on the magneto-rheological vibration damper piston coil with the excitation magnetic flow liquid, realize becoming the purpose of damping force.
A kind of magneto-rheological vibration damper of dispense with outer connecting power comprises earrings, pallet, piezoelectric pile structure, lower cover, bottom cover, air bag, cylinder body, the piston that is wound with coil, piston rod, upper end cap, spring, upper press cover, locking element (as: nut) and electric energy conditioning module; Earrings one end wears pallet and lower cover successively, and is located in the bottom cover; Be full of magnetic flow liquid in the described cylinder body, the piston that is wound with coil is installed in the cylinder body, is wound with and leaves the magnetic flow liquid gap of flowing between the piston periphery wall of coil and the cylinder body; One end of piston rod and piston one end are fixed, and the other end of piston rod stretches out from cylinder body one end by sealing plug and upper end cap, and air bag is located at bottom cover, are used for Volume Changes in the compensating piston bar turnover cylinder body that cylinder body caused.Lock nut is fixed on upper press cover on the piston rod, and spring housing is located at outside the cylinder body, and two ends are arranged in upper press cover and lower cover respectively; The piezoelectric pile structure is located in the pallet; Piezoelectric pile structure, electric energy conditioning module are connected by lead successively with coil on the piston.
For improving the sealability of magneto-rheological vibration damper of the present invention, Sealing is set between sealing plug and the piston rod to improve sealability.Guide sleeve is set between upper end cap and piston rod is convenient to tensile property with piston rod.
The polarised direction of piezoelectric pile structure is along its axial direction, and being subjected to force direction also is along its axial direction.Preferably, even 3 piezoelectric pile structures that distribute in the pallet.Also can place pad between piezoelectric pile structure and the lower cover, in order to slow down the impact force of external vibration, protection piezoelectric pile structure.
The electric energy conditioning module comprises full-bridge rectification and memory capacitance and direct current stabilizer, and full-bridge rectification and memory capacitance are parallel to direct current stabilizer.The piezoelectric pile structure is connected with full-bridge rectification, and the coil on the piston is connected in direct current stabilizer.
When magneto-rheological vibration damper of the present invention is worked, axially do along it at extraneous oscillating action lower piston rod and to pump, because upper press cover and piston rod are fixed together, therefore upper press cover is also done and is pumped along with piston rod, this is just with pressuring spring, and finally by spring with pressure-loaded to the piezoelectric pile structure.Direct piezoelectric effect according to piezoelectric material, piezoelectric pile will produce electric energy under the effect of pressure, the electric energy conditioning module converts the high-voltage alternating electric energy that the piezoelectric pile structure produces to the low-voltage direct electric energy, and electric energy is loaded on the magneto-rheological vibration damper piston coil by lead, generate an electromagnetic field, thereby can control the size that magneto-rheological vibration damper is exported damping force.
The beneficial effect that technical solution of the present invention realizes:
Magneto-rheological vibration damper of the present invention is not owing to need the additional configuration power supply input device, and it is more succinct to become, and therefore is specially adapted to the application places of space finite sum power supply inconvenience.Owing to saved the additional power supply input device, will reduce the application cost of magnetorheological vibration control technology widely, thereby can promote further developing of magnetic converting technique simultaneously.
Description of drawings
Fig. 1 is the structural representation of the magneto-rheological vibration damper of dispense with outer connecting power of the present invention;
Fig. 2 is the layout plan of the magneto-rheological vibration damper piezoelectric pile structure of dispense with outer connecting power of the present invention;
Fig. 3 is the internal circuit schematic representation of electric energy conditioning module of the present invention.
Embodiment
Describe technological scheme of the present invention in detail below in conjunction with accompanying drawing.
As shown in Figure 1, the magneto-rheological vibration damper of dispense with outer connecting power of the present invention comprises earrings 1, pallet 2, piezoelectric pile structure 3, lower cover 4, bottom cover 5, air bag 6, cylinder body 7, the piston 8 that is wound with coil, piston rod 9, sealing plug 10, upper end cap 11, spring 12, upper press cover 13, lock nut 14 and electric energy conditioning module 18.Earrings 1 one ends wear pallet 2 and lower cover 4 successively, and are located in the bottom cover 5; Be full of magnetic flow liquid in the described cylinder body 7, piston 8 is installed in the cylinder body 7, leaves the mobile gap of magnetic flow liquid between piston 8 periphery walls and the cylinder body 7; One end of piston rod 9 and piston 8 one ends are fixed, and the other end of piston rod 9 stretches out from cylinder body 7 one ends by sealing plug 10 and upper end cap 11, and air bag 6 is located at bottom cover, are used for Volume Changes in the cylinder body 7 that compensating piston bar 9 turnover cylinder bodies 7 are caused.Lock nut 14 is fixed on upper press cover 13 on the piston rod 9, and spring 12 is sheathed on outside the cylinder body 7, and two ends are arranged in upper press cover 13 and lower cover 4 respectively.Piezoelectric pile structure 3, electric energy conditioning module 18 are connected by lead successively with coil on the piston.
Sealing 16 is set to improve sealability between sealing plug 10 and the piston rod 9.Guide sleeve 15 is set between upper end cap 11 and piston rod is convenient to tensile property with piston rod.
In order to improve the generated energy of piezoelectric generating device, the piston coil that makes the electric energy that produces enough drive MR damper generates an electromagnetic field, as shown in Figure 2, the present invention has adopted three piezoelectric pile structure 3 actings in conjunction to guarantee generated energy, and three piezoelectric pile structures 3 are uniformly distributed in the pallet 2.
Simultaneously because the electric energy of piezoelectric pile structure 3 generations under pressure has high voltage, low current and the characteristic that exchanges variation, therefore need be undertaken by the electric energy of 18 pairs of generations of electric energy conditioning module just being loaded on the piston coil of MR damper after step-down is handled, the electrical schematic diagram of electric energy conditioning module 18 inside as shown in Figure 3, comprise full-bridge rectification 19 and memory capacitance 20 and direct current stabilizer 21, full-bridge rectification 19 and memory capacitance 20 are parallel to direct current stabilizer 21, piezoelectric pile structure 3 is connected with full-bridge rectification 19, and the coil 22 on the piston is connected in direct current stabilizer 21.Full-bridge rectification 19 converts the Ac that piezoelectric pile structure 3 produces to direct current that size constantly changes, the direct current of the continuous variation of coming out through full-bridge rectification 19 can be become a high voltage electric energy with burning voltage by discharging and recharging of memory capacitance 20, direct current stabilizer 21 is used for converting the high voltage direct current electric energy to be fit to the utilization of MR damper piston coil low-voltage direct electric energy, and be loaded into the electromagnetic field that produces the control magnetic flow liquid on the piston coil, realize self-powered purpose.
When magneto-rheological vibration damper of the present invention is worked, axially do along it at extraneous oscillating action lower piston rod 9 and to pump, because upper press cover 13 is fixed together with piston rod 9, therefore upper press cover 13 is also done and is pumped along with piston rod, this is just with pressuring spring 12, and finally by spring 12 with pressure-loaded on piezoelectric pile structure 3.Direct piezoelectric effect according to piezoelectric material, piezoelectric pile structure 3 will produce electric energy under the effect of pressure, and what piezoelectric pile structure 3 produced is the AC energy of high voltage, low current, electric energy conditioning module 18 converts the high-voltage alternating electric energy that piezoelectric pile structure 3 produces to the low-voltage direct electric energy, and be loaded on the magneto-rheological vibration damper piston coil by lead 17 electric energy, produce the electromagnetic field of excitation magnetic flow liquid, the size of control magneto-rheological vibration damper output damping force, thereby the intelligent self-powered feature of realization magneto-rheological vibration damper.
Claims (7)
1. the magneto-rheological vibration damper of a dispense with outer connecting power is characterized in that earrings, pallet, piezoelectric pile structure, lower cover, bottom cover, air bag, cylinder body, the piston that is wound with coil, piston rod, sealing plug, upper end cap, spring, upper press cover, locking element and electric energy conditioning module;
Described earrings one end wears described pallet and described lower cover successively, and is located in the described bottom cover;
Be full of magnetic flow liquid in the described cylinder body, the described piston that is wound with coil is installed in the described cylinder body, leaves the mobile gap of magnetic flow liquid between its periphery wall and the described cylinder body;
One end of described piston rod and described piston one end are fixed, and the other end of described piston rod stretches out from described cylinder body one end by described sealing plug and described upper end cap;
Described air bag is located at bottom cover, is used for Volume Changes in the compensating piston bar turnover cylinder body that cylinder body caused;
Described locking element is fixed on described upper press cover on the described piston rod, and described spring housing is located at outside the described cylinder body, and two ends are arranged in described upper press cover and described lower cover respectively;
Described piezoelectric pile structure is located in the described pallet;
Described piezoelectric pile structure, described electric energy conditioning module are connected by lead successively with coil on the described piston.
2. the magneto-rheological vibration damper of dispense with outer connecting power according to claim 1 is characterized in that between described upper end cap and described piston rod guide sleeve being set.
3. the magneto-rheological vibration damper of dispense with outer connecting power according to claim 1 is characterized in that between described sealing plug and the described piston rod Sealing being set.
4. the magneto-rheological vibration damper of dispense with outer connecting power according to claim 1, the polarised direction that it is characterized in that described piezoelectric pile structure is along its axial direction, and being subjected to force direction also is along its axial direction.
5. the magneto-rheological vibration damper of dispense with outer connecting power according to claim 1 is characterized in that 3 the described piezoelectric pile structures that evenly distribute in the described pallet.
6. the magneto-rheological vibration damper of dispense with outer connecting power according to claim 1 is characterized in that also can placing pad between described piezoelectric pile structure and the described lower cover.
7. the magneto-rheological vibration damper of dispense with outer connecting power according to claim 1 is characterized in that described electric energy conditioning module comprises full-bridge rectification and memory capacitance and direct current stabilizer, and full-bridge rectification and memory capacitance are parallel to direct current stabilizer.
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| CN 201110151314 CN102278410B (en) | 2011-06-03 | 2011-06-03 | Magneto-rheological vibration damper without externally-connected power supply |
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| CN 201110151314 CN102278410B (en) | 2011-06-03 | 2011-06-03 | Magneto-rheological vibration damper without externally-connected power supply |
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| CN102806981A (en) * | 2012-08-21 | 2012-12-05 | 江苏科技大学 | Energy-saving type floatable ocean platform movement control device |
| CN103195451A (en) * | 2013-03-12 | 2013-07-10 | 合肥工业大学 | Cushioning and vibration damping device for support of intelligent well |
| CN103267081A (en) * | 2013-05-10 | 2013-08-28 | 河南理工大学 | Piezoelectric power generation type damping-adjustable hydro-pneumatic suspension |
| CN103410910A (en) * | 2013-08-22 | 2013-11-27 | 兰州大学 | Adaptive damping device |
| CN104912918A (en) * | 2015-06-02 | 2015-09-16 | 孙美娜 | Cylindrical roller bearing with integrated speed change function for small load |
| CN104930112A (en) * | 2015-05-07 | 2015-09-23 | 江苏大学 | Self-energized damping-adjustable shock-absorbing device |
| CN106002374A (en) * | 2016-06-24 | 2016-10-12 | 哈尔滨理工大学 | Damping type adjustable special tool based on integral impeller milling and damping method |
| CN106195101A (en) * | 2016-07-19 | 2016-12-07 | 马学朋 | A kind of amortisseur and use its automobile |
| CN106763442A (en) * | 2016-11-08 | 2017-05-31 | 安徽理工大学 | The self-supplied magnetic current liquid damp type shock absorber of miniature precision instrument |
| CN107255136A (en) * | 2017-04-27 | 2017-10-17 | 湘潭大学 | Intelligent current becomes elastomer shock absorber |
| CN108412943A (en) * | 2018-03-28 | 2018-08-17 | 辽宁机电职业技术学院 | A kind of damp can be changed automotive suspension damper and its control method |
| CN108644297A (en) * | 2018-05-21 | 2018-10-12 | 西北工业大学 | A kind of parallel MR damper of small amplitude based on bipolar plates |
| CN109652948A (en) * | 2018-12-24 | 2019-04-19 | 珠海格力电器股份有限公司 | Vibration damping prisoner can device, roller washing machine and roller vibration control method |
| CN109899437A (en) * | 2017-12-07 | 2019-06-18 | 陕西汽车集团有限责任公司 | Vibration energy regeneration type magneto-rheological vibration damper |
| JP2019187208A (en) * | 2018-04-17 | 2019-10-24 | トヨタ自動車株式会社 | Power conversion device with anti-vibration mount |
| CN110762153A (en) * | 2019-11-04 | 2020-02-07 | 重庆大学 | Damping-adjustable electrorheological fluid shock absorber based on piezoelectric self-power supply |
| CN111530534A (en) * | 2020-05-10 | 2020-08-14 | 蔡永霞 | Handheld piezoelectric type medicine pestle |
| CN111674220A (en) * | 2020-05-08 | 2020-09-18 | 江苏大学 | Small-delay numerical control current source circuit for magnetorheological damper and parameter determination method thereof |
| CN112377567A (en) * | 2020-10-28 | 2021-02-19 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Self-powered combined vibration isolation device |
| CN113586647A (en) * | 2021-07-27 | 2021-11-02 | 盐城工学院 | Energy-saving environment-friendly self-powered magneto-rheological damper |
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| CN102806981A (en) * | 2012-08-21 | 2012-12-05 | 江苏科技大学 | Energy-saving type floatable ocean platform movement control device |
| CN103195451A (en) * | 2013-03-12 | 2013-07-10 | 合肥工业大学 | Cushioning and vibration damping device for support of intelligent well |
| CN103195451B (en) * | 2013-03-12 | 2015-12-30 | 合肥工业大学 | Smart well support buffering shock-absorbing device |
| CN103267081A (en) * | 2013-05-10 | 2013-08-28 | 河南理工大学 | Piezoelectric power generation type damping-adjustable hydro-pneumatic suspension |
| CN103267081B (en) * | 2013-05-10 | 2016-01-27 | 河南理工大学 | A kind of piezoelectric power generation type damping-adjustable hydro-pneumatic suspension for engineering machinery or farm machinery |
| CN103410910A (en) * | 2013-08-22 | 2013-11-27 | 兰州大学 | Adaptive damping device |
| CN103410910B (en) * | 2013-08-22 | 2015-07-29 | 兰州大学 | A kind of self adaption damping device |
| CN104930112A (en) * | 2015-05-07 | 2015-09-23 | 江苏大学 | Self-energized damping-adjustable shock-absorbing device |
| CN104912918A (en) * | 2015-06-02 | 2015-09-16 | 孙美娜 | Cylindrical roller bearing with integrated speed change function for small load |
| CN106002374A (en) * | 2016-06-24 | 2016-10-12 | 哈尔滨理工大学 | Damping type adjustable special tool based on integral impeller milling and damping method |
| CN106195101A (en) * | 2016-07-19 | 2016-12-07 | 马学朋 | A kind of amortisseur and use its automobile |
| CN106763442A (en) * | 2016-11-08 | 2017-05-31 | 安徽理工大学 | The self-supplied magnetic current liquid damp type shock absorber of miniature precision instrument |
| CN107255136A (en) * | 2017-04-27 | 2017-10-17 | 湘潭大学 | Intelligent current becomes elastomer shock absorber |
| CN109899437A (en) * | 2017-12-07 | 2019-06-18 | 陕西汽车集团有限责任公司 | Vibration energy regeneration type magneto-rheological vibration damper |
| CN109899437B (en) * | 2017-12-07 | 2024-03-05 | 陕西汽车集团股份有限公司 | Vibration energy recovery type magneto-rheological damper |
| CN108412943A (en) * | 2018-03-28 | 2018-08-17 | 辽宁机电职业技术学院 | A kind of damp can be changed automotive suspension damper and its control method |
| JP2019187208A (en) * | 2018-04-17 | 2019-10-24 | トヨタ自動車株式会社 | Power conversion device with anti-vibration mount |
| CN108644297A (en) * | 2018-05-21 | 2018-10-12 | 西北工业大学 | A kind of parallel MR damper of small amplitude based on bipolar plates |
| CN109652948A (en) * | 2018-12-24 | 2019-04-19 | 珠海格力电器股份有限公司 | Vibration damping prisoner can device, roller washing machine and roller vibration control method |
| CN110762153A (en) * | 2019-11-04 | 2020-02-07 | 重庆大学 | Damping-adjustable electrorheological fluid shock absorber based on piezoelectric self-power supply |
| CN111674220A (en) * | 2020-05-08 | 2020-09-18 | 江苏大学 | Small-delay numerical control current source circuit for magnetorheological damper and parameter determination method thereof |
| CN111530534A (en) * | 2020-05-10 | 2020-08-14 | 蔡永霞 | Handheld piezoelectric type medicine pestle |
| CN112377567A (en) * | 2020-10-28 | 2021-02-19 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Self-powered combined vibration isolation device |
| CN113586647A (en) * | 2021-07-27 | 2021-11-02 | 盐城工学院 | Energy-saving environment-friendly self-powered magneto-rheological damper |
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