CN103423362A - Energy-saving damper with adjustable damping - Google Patents
Energy-saving damper with adjustable damping Download PDFInfo
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- CN103423362A CN103423362A CN2013103469492A CN201310346949A CN103423362A CN 103423362 A CN103423362 A CN 103423362A CN 2013103469492 A CN2013103469492 A CN 2013103469492A CN 201310346949 A CN201310346949 A CN 201310346949A CN 103423362 A CN103423362 A CN 103423362A
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Abstract
The invention discloses an energy-saving damper with adjustable damping. The energy-saving damper is used for a motor vehicle. A pipeline is connected to the outer portion of a cylinder body. The two ends of the pipeline are connected with an upper oil cavity and a lower oil cavity respectively. A hydraulic motor is arranged on the pipeline and is connected with a flywheel which is connected with a damping adjusting mechanism. The damping adjusting mechanism is connected with a power generator. Oil liquid in the pipeline d always flows through the hydraulic motor from top to bottom. According to the energy-saving damper, vibration energy is converted to rotating mechanical energy of the hydraulic motor and the flywheel, pushing force which is parallel to the axis of a driven shaft and is toward the flywheel is exerted, pressing force between the driven shaft and the flywheel is changed, the hydraulic motor can provide different resistances, namely damping of the damper, for the oil liquid in the pipeline, the flywheel is attached with a driven wheel to drive the driven shaft which drives the power generator, mechanical energy is converted to electric energy, the phenomenon that the performance of the damper is affected because the temperature of hydraulic oil is raised is avoided, and vibration energy is effectively recycled.
Description
Technical field
The present invention relates to be applied to the damper means of motor vehicle, refer in particular to the dydraulic shock absorber of the adjustable and recyclable vibrational energy of a kind of damping.
Background technique
To the requirement of resistance of shock absorber power, the variation with driving conditions such as load, condition of road surface, the speed of a motor vehicle changes motor vehicle, simultaneously also can be different because of the difference of driver's individual character, when these situations constantly change, vibration damper that can not corresponding damping adjusting intensity is difficult to reach gratifying effectiveness in vibration suppression, can have influence on the smoothness of car load.Along with the development of modern electronic technology, occurred initiatively and semi-active suspension.Although Active suspension can obtain the vibrating isolation system of a high-quality in theory, the control target of the suspension of realizing ideal, its energy consumption is large, and cost is high, complex structure.Semi-active suspension has solved the travelling comfort of traditional passive suspension existence and the contradiction of stability, it approaches Active suspension on the control quality, and simple in structure, price is relatively cheap, except drive motor or solenoid valve require the expenditure of energy, do not need the additional supply that provides extra.Adaptive transmission control is the core component of semi-active suspension, and its quality directly affects the smoothness of automobile.
The vibrational energy of the middle vehicle that travels, the mode with heat energy dissipates traditional vibration damper, and this mode not only makes the hydraulic fluid temperature in vibration damper raise, thereby affects its damping property, and causes the waste of the energy.By advanced design means, body oscillating mechanical energy is converted into electric energy and is stored, and has become the task of top priority.For orthodox car, can realize energy-conservation; For electric vehicle, can extend its continual mileage, improve the battery utilization ratio.
Chinese Patent Application No. is 201210054782.8, name is called electromagnetism energy feeding back type semi-active suspension energy regenerative damping real-time control apparatus and method, using nut-ball screw framework is circular movement by the suspension conversion of motion of straight line, pass to again motor, motor plays energy feed system and active force generator, and the general storage battery of determining voltage that adopts plays the accumulator of energy regenerative and the power source that motor sends active force as motor.Chinese Patent Application No. is 201010109914.3, name is called automobile generating shock absorber, oil hydraulic motor and generator are placed in the vibration damper cylinder body, and flowing liquid passes through oil hydraulic motor while utilizing pipeline that vibration damper is vibrated, the hydraulic motor-driving generator generating, thus reach the effect that reclaims vibrational energy.Although the technological scheme of these two kinds of patent applications is progressive to some extent technically, still has following defect: one, the vibration damper volume is excessive; Two, internal structure more complicated all, make difficulty of processing large, and reliability is not high; Three, control gear complexity, make the package unit high cost; Four, fail to overcome this shortcoming that affects that hydraulic fluid temperature raises the vibration damper performance is produced.
Summary of the invention
The problem existed for above prior art, the invention provides a kind of simple in structure, respond well damping adjustable energy-saving vibration-reduction device, can produce multiple damping force, be applicable to applying under various working, reclaim vibrational energy simultaneously, be translated into electric energy and stored.
The technical solution used in the present invention: the present invention includes cylinder body, floating piston, piston and piston rod, floating piston is positioned at cylinder body and all contacts with the inboard wall of cylinder block sealing with piston, floating piston is on piston, floating piston and piston mark off compressed air cell by cylinder body, upper oil cavitie and lower oil cavitie, injecting oil liquid in upper oil cavitie and lower oil cavitie, piston rod connects piston and stretches out outside the cylinder body lower end from cylinder body, be externally connected to pipeline d at cylinder body, the two ends of pipeline d connect respectively upper oil cavitie and lower oil cavitie, on pipeline d, oil hydraulic motor is set, oil hydraulic motor connects flywheel, flywheel connects damper regulation mechanism, damper regulation mechanism connects generator, fluid in the pipeline d oil hydraulic motor of from top to bottom flowing through all the time.
Described pipeline d is comprised of four branch road d1, d2, d3, d4, and branch road d1 head end is connected with oil hydraulic motor top with upper oil cavitie b connection, tail end, centre is provided with the first one-way valve; Branch road d2 head end and branch road d1 by the three-dimensional flowing valve be connected, tail end and branch road d4 by the three-dimensional flowing valve be connected, centre is provided with the second one-way valve; Branch road d3 head end and branch road d1 by the three-dimensional flowing valve be connected, tail end and branch road d4 by the three-dimensional flowing valve be connected, centre is provided with the 3rd one-way valve; Branch road d4 head end is connected with the oil hydraulic motor bottom with lower oil cavitie c connection, tail end, centre is provided with the 4th one-way valve; The fluid that described the first one-way valve, the 4th one-way valve are controlled upper oil cavitie b is flowed through after described oil hydraulic motor and is flowed into lower oil cavitie c, and the fluid that described the second one-way valve, the 3rd one-way valve are controlled lower oil cavitie c is flowed through after oil hydraulic motor and flowed into upper oil cavitie b.
Described damper regulation mechanism comprises follower, driven shaft, spring and shift fork, follower, driven shaft and flywheel are coaxial, follower connects an end of driven shaft and can move vertically, on the driven shaft intermediate section, the promising follower of cover provides the spring of impacting force, the other end of driven shaft is connected with generator, shift fork connects the outer surface of follower, drives the follower axial motion.
The invention has the beneficial effects as follows:
1, the present invention uses pipeline by the cylinder body inner fluid oil hydraulic motor of drawing and flow through, and makes vibrational energy be converted into the rotary machine energy of oil hydraulic motor and flywheel; The impacting force that follower applies by spring and flywheel laminating.By Electrohydraulic push rod, shift fork top is applied and is parallel to the thrust of driven shaft axis towards flywheel, change the impacting force between follower and flywheel, can change follower and put on the frictional force on flywheel, thereby oil hydraulic motor can be fluid in pipeline, provide different resistances, be the damping of vibration damper.Drive driven shaft by the follower with the flywheel laminating, driven axle driven dynamo, generator can be converted into electric energy by the rotary machine on flywheel and be stored, mechanical energy is converted into to electric energy, avoided because hydraulic fluid temperature raises, and affect the situation of vibration damper performance, and effectively reclaimed vibrational energy.
2, the present invention requires low, reliable performance to performer, because damping can be stepless adjustable within the specific limits, makes it can adapt to various road conditions, can effectively be applied to semi-active suspension.
3, not application sensors and high-performance microprocessor of the present invention, make cost greatly reduce, and can be used as vibration damping and the insulator of various vehicles and mechanical device.
The accompanying drawing explanation
Structure for a more complete understanding of the present invention and working principle, be described in further detail the present invention with embodiment in conjunction with the following drawings.
Fig. 1 is the structure connection diagram of the adjustable energy-saving vibration-reduction device of damping of the present invention;
Fig. 2 is that Fig. 1 has removed schematic diagram after damper regulation mechanism 8, generator 9 and four branch road d1, the d2 of pipeline d, the schematic diagram of d3, d4;
Pipeline d inner fluid glide path when Fig. 3 is compression stroke;
Pipeline d inner fluid glide path when Fig. 4 is extension stroke;
Fig. 5 is the mounting structure schematic diagram of flywheel 7 and damper regulation mechanism 8 in Fig. 1;
Fig. 6 is shift fork 14 structure enlarged diagrams in Fig. 5;
Fig. 7 is the perspective view of flywheel 7 and damper regulation mechanism 8 in Fig. 1.
In figure: 1, cylinder body, 2, floating piston, 3, piston, 4, piston rod, 5,10,11,12, one-way valve, 6, oil hydraulic motor, 7, flywheel, 8, damper regulation mechanism, 9, generator, 13, follower, 14, shift fork, 15, bolt, 16, driven shaft, 17, spring, 18, bearing support, 19, bearing, 20, nut.
Embodiment
As shown in Figure 1, the present invention includes cylinder body 1, floating piston 2, piston 3 and piston rod 4.Floating piston 2 and piston 3 are positioned at cylinder body 1, all with cylinder body 1 inner wall sealing, contact, and floating piston 2 is on piston 3, and floating piston 2 and piston 3 mark off compressed air cell a, upper oil cavitie b and lower oil cavitie c by cylinder body 1, injecting oil liquid in upper oil cavitie b and lower oil cavitie c.Piston rod 4 is connected with piston 3, and stretches out outside cylinder body 1 lower end from cylinder body 1.The dither that compressed air cell a can reduce wheel effectively to be produced while being subject to impacting suddenly, and compensation is because piston rod 4 enters in cylinder body 1, the reduction of cylinder body 1 oil storage volume.Be externally connected to pipeline d at cylinder body 1, the two ends of pipeline d connect respectively upper oil cavitie b and lower oil cavitie c, make the fluid between upper oil cavitie b and lower oil cavitie c form oil hydraulic circuit by pipeline d.Oil hydraulic motor 6 is set on described oil hydraulic circuit, and the oil hydraulic motor 6 of flowing through of the fluid in pipeline d, drive oil hydraulic motor 6 to rotate.Oil hydraulic motor 6 connects flywheel 7, and flywheel 7 connects damper regulation mechanism 8, and damper regulation mechanism 8 connects generator 9.
As shown in Figure 2, pipeline d is comprised of four branch road d1, d2, d3, d4.Branch road d1 head end is connected with cylinder body 1, and with upper oil cavitie, b is communicated with, and branch road d1 tail end is connected with oil hydraulic motor 6 tops, is provided with one-way valve 11 in the middle of branch road d1; Branch road d2 head end is connected by the three-dimensional flowing valve with branch road d1, and branch road d2 tail end is connected by the three-dimensional flowing valve with branch road d4, is provided with one-way valve 10 in the middle of branch road d2; Branch road d3 head end is connected by the three-dimensional flowing valve with branch road d1, and branch road d3 tail end is connected by the three-dimensional flowing valve with branch road d4, is provided with one-way valve 12 in the middle of branch road d3; Branch road d4 head end is connected with cylinder body 1, and with lower oil cavitie, c is communicated with, and branch road d4 tail end is connected with oil hydraulic motor 6 bottoms, is provided with one-way valve 5 in the middle of branch road d4.Fluid in the pipeline d oil hydraulic motor 6 of flowing through, drive oil hydraulic motor 6 to rotate.Four one- way valves 5,10,11,12 are divided into two groups, one- way valve 5,11 is first group of one-way valve, allow the fluid of the upper oil cavitie b rear inflow lower oil cavitie of described oil hydraulic motor 6 c that flows through, one- way valve 10,12 is second group of one-way valve, allows the fluid of the lower oil cavitie c rear inflow upper oil cavitie of oil hydraulic motor 6 b that flows through.Due to the effect of one- way valve 5,10,11,12, make fluid in the pipeline d oil hydraulic motor 6 of flowing through all the time from top to bottom.
As shown in Figure 3, when compression stroke, piston 3 moves upward, upper oil cavitie b fluid is flowed through one-way valve 11, oil hydraulic motor 6, one-way valve 5 to lower oil cavitie c, due to now, one-way valve 12 upper end oil liquid pressures are greater than lower end, and one-way valve 10 right-hand member oil liquid pressures are greater than left end, therefore, fluid can not pass through one- way valve 10,12; As shown in Figure 4, when extension stroke, piston 3 moves downward, lower oil cavitie c fluid flow through one-way valve 10, oil hydraulic motor 6, one-way valve 12 is to upper oil cavitie b, and because one-way valve 11 right-hand member oil liquid pressures now are greater than left end, one-way valve 5 left end oil liquid pressures are greater than right-hand member, therefore, fluid can not pass through one-way valve 5,11.So, the oil hydraulic motor 6 of from top to bottom flowing through all the time of the fluid in pipeline d.Flywheel 7 is fixedly linked with the output shaft of oil hydraulic motor 6, thereby flywheel 7 is rotated around same direction.
As shown in Figure 5, when providing for shift fork 14 tops the axis that is parallel to driven shaft 16 with Electrohydraulic push rod and during towards the thrust F of flywheel 7, bearing 19 provides axial thrust for follower 13.During vibration damper work, fluid flows and makes flywheel 7 rotations; During original state, Electrohydraulic push rod is not worked, impacting force due to spring 17, between flywheel 7 and follower 13, be stiction, constraint due to spline, drive driven shaft 16 and rotate, the resistance maximum that now damper regulation mechanism 8 provides for oil hydraulic motor 6, the charging load impedance that the source of resistance is generator 9; Thereby in 6 couples of pipeline d of oil hydraulic motor, the fluid flow resistance reaches maximum, i.e. the damping of vibration damper is maximum value.When Electrohydraulic push rod, shift fork 14 is provided the axis that is parallel to driven shaft 16 thrust towards flywheel 7
FThe time, 19 pairs of followers 13 of bearing apply axial thrust, and direction is contrary with spring 17 elastic force; Thereby the impacting force of 13 pairs of flywheels 7 of follower can be by maximum vanishing, and now the source of resistance is force of sliding friction
F S ,
F S =
μ N,
μFor dynamic friction factor,
NFor impacting force.Impacting force
NReduce force of sliding friction
F S Reduce, the damping of vibration damper is corresponding reducing also.When follower 13 breaks away from flywheel 7, the suffered frictional force of flywheel 7 is zero, and resistance of shock absorber is minimum value, only by pipeline d, provides damping.Therefore, this mechanism damping of electrodeless adjusting vibration damper within the specific limits in theory.
When road conditions are good, in order to improve the smoothness of vehicle, vibration damper requires to provide large damping.Now, Electrohydraulic push rod is not worked, and by spring 17, provides impacting force, and flywheel 7 forms with mass motion with follower 13, thereby drives driven shaft 16 rotations; The interior flow resistance to fluid of vibration damper is provided by the charging load impedance of pipeline d and generator 9, is large damping state.Driven shaft 16 is connected with generator 9, and the vibrational energy of vibration damper is converted into to electric energy.
When road conditions are severe, in order to improve the smoothness of vehicle, vibration damper requires to provide little damping.Now, Electrohydraulic push rod work, apply and be parallel to the thrust of driven shaft 16 axis towards flywheel 7 shift fork 14 tops, and 19 pairs of followers 13 of the bearing of shift fork 14 bottoms apply axial thrust, the elastic force opposite direction provided with spring 17; The impacting force of 13 pairs of flywheels 7 of follower reduces, and the suffered frictional force of flywheel 7 reduces; The now damping of vibration damper starts to reduce.When the thrust applied when 19 pairs of followers 13 of bearing equals spring 17 elastic force, flywheel 7 separates with follower 13, and the frictional force that now 13 pairs of flywheels 7 of follower apply is zero; Therefore oil liquid resistance is only provided by pipeline d.Now resistance of shock absorber is minimum value.
During different road conditions, by controlling the thrust of Electrohydraulic push rod to shift fork 14, the damping of vibration damper is not identical yet, can so that vehicle according to the fine or not adjustable suspension damping size of the road conditions of travelling to realize the optimal control of semi-active suspension.The vibrational energy of vibration damper is converted into electric energy, has not only reclaimed energy, clean environment firendly, and reached the reduction oil liquid temperature, make vibration damper keep the function of premium properties.
Claims (4)
1. the energy-saving vibration-reduction device that damping is adjustable, comprise cylinder body (1), floating piston (2), piston (3) and piston rod (4), floating piston (2) is positioned at cylinder body (1) and all contacts with cylinder body (1) inner wall sealing with piston (3), floating piston (2) is on piston (3), floating piston (2) and piston (3) mark off compressed air cell by cylinder body (1), upper oil cavitie and lower oil cavitie, injecting oil liquid in upper oil cavitie and lower oil cavitie, piston rod (4) connects piston (3) and stretches out outside cylinder body (1) lower end from cylinder body (1), it is characterized in that: at cylinder body (1), be externally connected to pipeline d, the two ends of pipeline d connect respectively upper oil cavitie and lower oil cavitie, oil hydraulic motor (6) is set on pipeline d, oil hydraulic motor (6) connects flywheel (7), flywheel (7) connects damper regulation mechanism (8), damper regulation mechanism (8) connects generator (9), fluid in the pipeline d oil hydraulic motor (6) of from top to bottom flowing through all the time.
2. the adjustable energy-saving vibration-reduction device of a kind of damping according to claim 1, it is characterized in that: described pipeline d is comprised of four branch road d1, d2, d3, d4, and branch road d1 head end is connected with oil hydraulic motor (6) top with upper oil cavitie b connection, tail end, centre is provided with the first one-way valve (11); Branch road d2 head end and branch road d1 by the three-dimensional flowing valve be connected, tail end and branch road d4 by the three-dimensional flowing valve be connected, centre is provided with the second one-way valve (10); Branch road d3 head end and branch road d1 by the three-dimensional flowing valve be connected, tail end and branch road d4 by the three-dimensional flowing valve be connected, centre is provided with the 3rd one-way valve (12); Branch road d4 head end is connected with oil hydraulic motor (6) bottom with lower oil cavitie c connection, tail end, centre is provided with the 4th one-way valve (5); The fluid that described the first one-way valve (11), the 4th one-way valve (5) are controlled upper oil cavitie b is flowed through after described oil hydraulic motor (6) and is flowed into lower oil cavitie c, and the fluid that described the second one-way valve (10), the 3rd one-way valve (12) are controlled lower oil cavitie c is flowed through after oil hydraulic motor (6) and flowed into upper oil cavitie b.
3. the adjustable energy-saving vibration-reduction device of a kind of damping according to claim 1, it is characterized in that: described damper regulation mechanism (8) comprises follower (13), driven shaft (16), spring (17) and shift fork (14), follower (13), driven shaft (16) and flywheel (7) are coaxial, follower (13) connects an end of driven shaft (16) and can move vertically, on driven shaft (16) intermediate section, the promising follower of cover (13) provides the spring (17) of impacting force, the other end of driven shaft (16) is connected with generator (9), shift fork (14) connects the outer surface of follower (13), drive follower (13) axial motion.
4. the adjustable energy-saving vibration-reduction device of a kind of damping according to claim 3, it is characterized in that: described shift fork (14) is fixedly connected with bearing support (18), bearing (19) is arranged on bearing support (18), on the outer surface of follower (13), have swivelling chute, bearing (19) is positioned at described swivelling chute.
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CN103711827A (en) * | 2014-01-06 | 2014-04-09 | 江苏大学 | Hydro-pneumatic spring device with inerter and damper connected in parallel |
CN104373497A (en) * | 2014-10-17 | 2015-02-25 | 武汉理工大学 | Parallel-connection liquid-electricity feed suspension system |
CN104389753A (en) * | 2014-11-05 | 2015-03-04 | 湖南大学 | Vibration energy recovering device |
CN104455166A (en) * | 2014-10-24 | 2015-03-25 | 北京长安汽车工程技术研究有限责任公司 | Automobile and hydraulic damping energy recovery device thereof |
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CN103711827A (en) * | 2014-01-06 | 2014-04-09 | 江苏大学 | Hydro-pneumatic spring device with inerter and damper connected in parallel |
CN104373497A (en) * | 2014-10-17 | 2015-02-25 | 武汉理工大学 | Parallel-connection liquid-electricity feed suspension system |
CN104455166A (en) * | 2014-10-24 | 2015-03-25 | 北京长安汽车工程技术研究有限责任公司 | Automobile and hydraulic damping energy recovery device thereof |
CN104389753A (en) * | 2014-11-05 | 2015-03-04 | 湖南大学 | Vibration energy recovering device |
CN104389753B (en) * | 2014-11-05 | 2015-09-16 | 湖南大学 | Vibration energy recovery device |
CN105508351A (en) * | 2015-12-22 | 2016-04-20 | 江苏大学 | Shock absorber device with energy recovery function for vehicles |
US10401894B2 (en) | 2016-01-27 | 2019-09-03 | Kurt Staehle | Actuator device |
CN106678484A (en) * | 2016-11-17 | 2017-05-17 | 国家电网公司 | High-energy pipeline impact power absorber in power planning |
CN106884924B (en) * | 2017-03-10 | 2019-04-30 | 江苏大学 | A kind of pneumatic adjustable damping control valve |
CN106884924A (en) * | 2017-03-10 | 2017-06-23 | 江苏大学 | A kind of pneumatic adjustable damping control valve |
CN107226176A (en) * | 2017-07-13 | 2017-10-03 | 江苏科技大学 | It is a kind of to subtract the generating ship underframe for shaking vibration damping |
CN108386478A (en) * | 2018-01-26 | 2018-08-10 | 华南理工大学 | A kind of series connection R formulas vehicle shock absorber that turbine recovers energy and method |
CN108458029A (en) * | 2018-01-26 | 2018-08-28 | 华南理工大学 | R formulas vehicle shock absorber that a kind of single turbine recovers energy and in parallel and method |
CN108180242A (en) * | 2018-01-26 | 2018-06-19 | 华南理工大学 | The R formulas vehicle shock absorber in parallel and method that a kind of single turbine recovers energy |
CN108895110A (en) * | 2018-09-20 | 2018-11-27 | 营山县臻安机电科技研究所 | A kind of hydraulic electricity generation formula electromagnetism damping device |
CN111993853A (en) * | 2020-08-12 | 2020-11-27 | 内蒙古第一机械集团股份有限公司 | External electro-hydraulic combined type vehicle posture adjusting unit |
CN113889956A (en) * | 2021-09-28 | 2022-01-04 | 山东大学 | Energy feedback type multiple energy consumption damper |
CN113889956B (en) * | 2021-09-28 | 2022-04-29 | 山东大学 | Energy feedback type multiple energy consumption damper |
CN114704588A (en) * | 2022-01-26 | 2022-07-05 | 陈昱洲 | Damping vibration attenuation device with parallel damping branches |
CN114704588B (en) * | 2022-01-26 | 2024-01-09 | 陈昱洲 | Parallel damping branch damping vibration attenuation device |
CN117262107A (en) * | 2023-11-23 | 2023-12-22 | 集美大学 | Passive floating raft vibration isolation platform based on interconnection vibration isolator |
CN117262107B (en) * | 2023-11-23 | 2024-01-23 | 集美大学 | Passive floating raft vibration isolation platform based on interconnection vibration isolator |
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