CN106641080B - A kind of fluid pressure type variable-damp vibration damper with generating function - Google Patents

A kind of fluid pressure type variable-damp vibration damper with generating function Download PDF

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Publication number
CN106641080B
CN106641080B CN201611137082.XA CN201611137082A CN106641080B CN 106641080 B CN106641080 B CN 106641080B CN 201611137082 A CN201611137082 A CN 201611137082A CN 106641080 B CN106641080 B CN 106641080B
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CN
China
Prior art keywords
piston
brushless motor
rotation
kind
damper
Prior art date
Application number
CN201611137082.XA
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Chinese (zh)
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CN106641080A (en
Inventor
兰志强
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上乘精密科技(苏州)有限公司
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Publication of CN106641080A publication Critical patent/CN106641080A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/50Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
    • F16F9/14Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
    • F16F9/16Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
    • F16F9/18Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
    • F16F9/19Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/3207Constructional features
    • F16F9/3214Constructional features of pistons

Abstract

The invention discloses a kind of fluid pressure type variable-damp vibration dampers with generating function, for vehicle damping, it is by damper shelling machine into a kind of closed shell that it, which is mainly improved, it is internal full of work fluid, and shock absorber piston is designed to a kind of rotation piston, including piston and set brushless motor in the inner and star gear train deceleration mechanism, piston includes the piston upper cover of fixed brushless motor and absorber rod, and the piston rotation set being rotatablely connected by bearing with brushless motor outer wall, piston rotation set outer wall sets spiral lamination, and inner wall then sets ring gear;Brushless motor output shaft is sequentially connected through star gear train deceleration mechanism and ring gear, while its lead-out wire is connected with vehicle control device;Closed shell is separated into upper lower oil chamber by rotation piston, which can change upper lower oil chamber's volume by rotation and itself be lifted with driving.The present invention does not use electromagnetic liquid, and simple in structure, easy to repair, operation and maintenance is at low cost, and can be produced electricl energy under specified control environment.

Description

A kind of fluid pressure type variable-damp vibration damper with generating function

Technical field

The present invention relates to a kind of fluid pressure type variable-damp vibration dampers with generating function, belong to the structure of automobile absorber Technical field.

Background technology

Magnetorheological damping damper, damper is interior using a kind of special liquid being referred to as electromagnetic liquid, it is hydrocarbon by synthesizing The magnetic-particle of compound and 3 to 10 microns of sizes composition.Once control unit sends out pulse signal, will be generated in coil Voltage to form a magnetic field, and changes the arrangement mode of particle.These particles can be arranged at once by perpendicular to the direction of pressure Row, the effect for hindering oil to be flowed in piston channel, to improve damped coefficient.

This damper device internal structure is complicated;It is expensive using special electromagnetic liquid;In order to generate a certain damping effect Fruit needs the size of real-time control electric current, power consumption big.

Invention content

Purpose of the present invention is to:A kind of fluid pressure type variable-damp vibration damper with generating function is provided, electromagnetism is not used Liquid, simple in structure, easy to repair, operation and maintenance is at low cost, and can be produced electricl energy under specified control environment.

The technical scheme is that:A kind of fluid pressure type variable-damp vibration damper with generating function, subtracts for vehicle Shake, including damper shell, the shock absorber piston in damper shell and be connected with shock absorber piston and stretch out damper The absorber rod of shell, it is characterised in that the damper shell is a kind of closed shell, internal to be full of work fluid, and is subtracted It is a kind of rotation piston, including piston and the brushless motor in piston and star gear train speed reducer to shake device piston Structure, the piston include the piston upper cover for fixing brushless motor and absorber rod, and with brushless motor outer wall by The outer wall of the piston rotation set of bearing rotation connection, the piston rotation set is equipped with spiral lamination, and ring gear is then arranged in inner wall;It is described The output shaft of brushless motor is connected with the centre pinion of star gear train deceleration mechanism, and the peripheral planet of star gear train deceleration mechanism Gear is engaged with the ring gear, and the lead-out wire of brushless motor is connected with vehicle control device;The rotation piston is by closed shell Upper and lower two grease chambers are separated into, which can change upper and lower grease chamber volume to drive itself living up and down by rotation It is dynamic.

Further, the heretofore described preferred anti-icing fluid of work fluid.

Further, it is provided with the trepanning passed through for absorber rod at the top of heretofore described closed shell, is set in trepanning There is damper body seal circle.

Further, heretofore described absorber rod is hollow member, and the lead-out wire of the brushless motor subtracts from described It draws and is connect with the vehicle control device inside shake device bar.Actual lead-out wire includes brushless motor supply line(Power supply Line), the control circuit of lead line and brushless motor and Vehicle Controller when brushless motor is as generator.

Further, the preferred rolling bearing of heretofore described bearing.

Further, heretofore described piston further includes the work fixed or be integrally designed with piston rotation set bottom Lower cover is filled in, several rolling steel balls are provided between the piston lower cover and the planetary gear, the setting of rolling steel ball can improve Fluency when mechanism driving.

Further, heretofore described piston upper cover and piston rotation are sleeved on junction and are provided with piston packing, prevent Only fluid intrusion internal piston destroys brushless motor.

Working principle of the present invention is as follows:When absorber rod by external force drive rotation piston in the fluid that work it is downward or When person moves upwards, piston can all squeeze lower oil chamber, change the pressure balanced environment of damper enclosure so that working oil Spiral lamination surface outside liquid impact piston turning set applies tangential driving force to rotation piston, piston rotation set is driven to turn It is dynamic.Internal planetary gear movement will be driven when rotating piston rotation, and then drives centre pinion rotation by these gears, To make brushless motor get into smooth, and since using star gear train deceleration mechanism, piston rotation set moves small distance, all It can be amplified so that brushless motor gets up to generate electricity with higher rotational speed.

Here there are two types of working conditions for brushless motor:

Rotation:When brushless motor rotates under electric drive, rotation piston can be driven(Piston rotation set)It rotates together. And the rotation for rotating piston can change upper and lower grease chamber volume, break damper enclosure pressure balance, to drive rotation Piston is up and down.Therefore, when needing absorber rod to move up and down, it is only necessary to which the positive and negative rotation for adjusting brushless motor can be achieved with The up and down motion of absorber rod.And the speed of absorber rod up and down motion speed can pass through the raising of control brushless motor speed Or it reduces to realize.

Power generation:According to the principle Analysis of front it is found that brushless motor in absorber rod by external force(Vehicle body is with operation And it shakes)It can rotate and produce electricl energy when effect, and rotating speed is faster, the electric energy of generation is more.And brushless motor rotation speed with The time for the outer force effect that absorber rod is subject to and distance dependent, the electric energy generated can be stored or be supplied by control circuit To the electrical equipment on vehicle.

The implementation method of variable damping, according to the design, variable damping is to require in the case of a certain external force, by damping The speed of device bar up and down motion speed come determine damping size.It is identical in external force, absorber rod upwards or to The speed of lower movement is fast, is that damped coefficient is small;The speed that absorber rod upwardly or downwardly moves is slow, is damped coefficient Greatly.Therefore it may only be necessary to the size of the i.e. changeable damper damping of the rotating speed for changing brushless motor.Understand principles above, so that it may To know that the design can there are two types of the methods of variable damping.

One is brushless motors under as power generator, is loaded by changing(Such as by the electric energy of generation for charging, The size of adjustment charging current, charging current is only needed to increase, load becomes larger, and damping becomes larger, and charging current reduces, and load subtracts It is small, deattenuation)Size, thus it is possible to vary damping;Another method is brushless motor in the case where being driven control, Change damping by changing the speed of the brushless motor direction of motion or rotating speed(Size and force direction).

Need the lift angle for illustrating the screw thread of transfer piston case surface of the present invention and screw pitch gap to determine damper certainly Inherent damping, lead angle and screw pitch are big, damping it is small;Opposite, lead angle and screw pitch are small, and damping is big.

It is an advantage of the invention that:

1, this damper provided by the invention is realized former compared with routinely using the MR vibration damper of electromagnetic liquid Reason is different, does not need special electromagnetism liquid medium, and internal structure is simpler, ingenious in design, maintainable strong;It is produced into simultaneously This reduction, and a direct power supply is not necessarily to when using, enterprise's production cost can be saved.

2, this damper provided by the invention, can produce electricl energy in the case where that need not damp work greatly, lead to Electrical equipment in power storage or supply vehicle can be saved the energy by oversampling circuit control for user.

3, this damper provided by the invention, is further mounted with encoder on brushless motor, for examining indirectly Bodywork height is surveyed, the structure of script is simplified, space can be saved, improve the compatibility of product.

Description of the drawings

The invention will be further described with reference to the accompanying drawings and embodiments:

Fig. 1 is the structural main section view of the present invention;

Fig. 2 is the structural main section view for rotating piston;

Fig. 3 is the A-A sectional views of Fig. 2.

Wherein:1, damper shell;1a, upper chamber;1b, lower oil chamber;2, shock absorber piston;3, absorber rod;4, brushless Motor;4a, output shaft;5, piston upper cover;6, bearing;7, piston rotation set;7a, spiral lamination;7b, ring gear;8, centre pinion; 9, planetary gear;10, lead-out wire;11, trepanning;12, damper body seal circle;13, piston lower cover;14, rolling steel ball;15、 Piston packing.

Specific implementation mode

Embodiment:In conjunction with shown in Fig. 1 ~ Fig. 3, to this fluid pressure type adaptive damping with generating function provided by the invention Damper explains as follows:It is used for vehicle damping, has damper shell 1, the damper in damper shell 1 Piston 2 and the absorber rod 3 being connected with shock absorber piston 2.

The emphasis improvement of the present invention is damper shell 1 and shock absorber piston 2.Wherein damper shell 1 be by upper cover, Closed shell made of middle cylinder and lower cover are fixed, it is internal to be full of work fluid, i.e. anti-icing fluid;And shock absorber piston 2 is A kind of rotation piston, this rotation piston include that piston and brushless motor 4 in piston and star gear train subtract Fast mechanism, the piston is by the piston upper cover 5 and 4 outer wall of brushless motor for fixing brushless motor 4 and absorber rod 3 By bearing 6(Rolling bearing)The piston rotation of rotation connection covers 7 and is covered under the fixed piston in 7 bottoms with the piston rotation Lid 13 collectively forms, specifically as shown in Figure 2.

The outer wall of the piston rotation set 7 is equipped with spiral lamination 7a, and ring gear 7b is then arranged in inner wall.Star described in the present embodiment Type gear reduction engages and surrounds three planetary gears 9 that it is evenly spaced on by centre pinion 8 and with centre pinion 8 It collectively forms.The output shaft 4a of the brushless motor 4 is connected with the centre pinion 8 of star gear train deceleration mechanism, and star gear train The planetary gear 9 of deceleration mechanism periphery is engaged with the ring gear 7b, is specifically combined shown in Fig. 3.

It will be seen from figure 1 that closed shell is separated into upper and lower two grease chambers 1a, 1b by heretofore described rotation piston, The rotation piston can change upper and lower grease chamber 1a, 1b volume to drive itself up and down by rotation.

Damper shell described in the present embodiment 1(Closed shell)Top(Upper cover)It is provided with and passes through for absorber rod 3 Trepanning 11, trepanning 11 is interior to be equipped with damper body seal circle 12, prevents dust and aqueous vapor from entering inside damper shell 1, ensures Its seal.

Absorber rod 3 described in the present embodiment is hollow member, and the lead-out wire 10 of the brushless motor 4 is from the damper 3 inside of bar is drawn and is connect with the vehicle control device, as shown in Figure 1.Actual lead-out wire includes brushless motor supply line (Power cord), the control circuit of lead line and brushless motor 4 and Vehicle Controller when brushless motor 4 is as generator.

As shown in Fig. 2, being provided with several rolling steel between piston lower cover described in the present embodiment 13 and the planetary gear 9 Pearl 14, the setting of rolling steel ball 14 can improve fluency when mechanism driving.

Piston upper cover described in the present embodiment 5 and piston rotation set 7 are provided with piston packing 15 in junction, prevent oil Liquid invades internal piston and destroys brushless motor 4.

Working principle of the present invention is as follows:When absorber rod 3 is driven rotation piston downward in the fluid that works by external force Or when moving upwards, piston can all squeeze upper and lower grease chamber 1a, 1b, change the pressure balanced environment inside damper shell 1, So that the surfaces spiral lamination 7a outside work fluid impact piston turning set 7, apply tangential driving force to rotation piston, drive 7 rotation of piston rotation set.Internal planetary gear 9 will be driven to move when rotating piston rotation, and then by these gear bands Dynamic centre pinion 8 rotates, to make brushless motor 4 get into smooth, and due to using star gear train deceleration mechanism, piston rotation set The small distance of 7 movements, can all be amplified so that brushless motor 4 gets up to generate electricity with higher rotational speed.

Here there are two types of working conditions for brushless motor:

Rotation:When brushless motor 4 rotates under electric drive, rotation piston can be driven(Piston rotation set 7)Turn together It is dynamic.And the rotation for rotating piston can change upper and lower grease chamber 1a, 1b volume, break damper enclosure pressure balance, to Driving rotation piston is up and down.Therefore, when needing absorber rod 3 to move up and down, it is only necessary to adjust the positive and negative of brushless motor 4 Turn to can be achieved with the up and down motion of absorber rod 3.And the speed of 3 up and down motion speed of absorber rod can be by controlling brushless electricity The raising or reduction of 4 rotating speed of machine is realized.

Power generation:According to the principle Analysis of front it is found that brushless motor 4 in absorber rod 3 by external force(Vehicle body is with fortune It goes and shakes)It can rotate and produce electricl energy when effect, and rotating speed is faster, the electric energy of generation is more.And the speed that brushless motor 4 rotates The time for the outer force effect being subject to absorber rod 3 and distance dependent, generate electric energy can be stored by control circuit or Person supplies the electrical equipment on vehicle.

The implementation method of variable damping, according to the design, variable damping is to require in the case of a certain external force, by damping The speed of 3 up and down motion speed of device bar come determine damping size.It is identical in external force, absorber rod 3 upwards or The speed moved downward is fast, is that damped coefficient is small;The speed that absorber rod 3 upwardly or downwardly moves is slow, is damping system Number is big.Therefore it may only be necessary to the size of the i.e. changeable damper damping of the rotating speed for changing brushless motor 4.Principles above is understood, just It is known that the design can there are two types of the methods of variable damping.

One is brushless motors 4 under as power generator, is loaded by changing(Such as by the electric energy of generation for filling Electricity, it is only necessary to adjust the size of charging current, charging current increases, and load becomes larger, and damping becomes larger, and charging current reduces, load Reduce, deattenuation)Size, thus it is possible to vary damping;Another method is brushless motor 4 the case where being driven control Under, change damping by changing the speed of 4 direction of motion of brushless motor or rotating speed(Size and force direction).

Certainly the above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow be familiar with technique People can understand the content of the present invention and implement it accordingly, it is not intended to limit the scope of the present invention.It is all according to this hair The modification that the Spirit Essence of bright main technical schemes is done, should be covered by the protection scope of the present invention.

Claims (7)

1. a kind of fluid pressure type variable-damp vibration damper with generating function is used for vehicle damping, including damper shell(1)、 Set on damper shell(1)Interior shock absorber piston(2)With with shock absorber piston(2)It is connected and stretches out damper shell(1)'s Absorber rod(3), it is characterised in that the damper shell(1)It is internal to be full of work fluid for a kind of closed shell, and subtract Shake device piston(2)It is a kind of rotation piston, including piston and the brushless motor in piston(4)And star gear train Deceleration mechanism, the piston include for fixing brushless motor(4)And absorber rod(3)Piston upper cover(5), and with nothing Brush motor(4)Outer wall is by bearing(6)The piston rotation set of rotation connection(7), the piston rotation set(7)Outer wall be equipped with spiral shell Lira(7a), ring gear is then arranged in inner wall(7b);The brushless motor(4)Output shaft(4a)With star gear train deceleration mechanism Centre pinion(8)It is connected, and the peripheral planetary gear of star gear train deceleration mechanism(9)With the ring gear(7b)Engagement, it is brushless Motor(4)Lead-out wire(10)It is connected with vehicle control device;Closed shell is separated into upper and lower two grease chambers by the rotation piston (1a、1b), which can be by the upper and lower grease chamber of rotation change(1a、1b)Volume is to drive itself up and down.
2. a kind of fluid pressure type variable-damp vibration damper with generating function according to claim 1, it is characterised in that institute It is anti-icing fluid to state work fluid.
3. a kind of fluid pressure type variable-damp vibration damper with generating function according to claim 1, it is characterised in that institute It states and is provided with for absorber rod at the top of closed shell(3)The trepanning passed through(11), trepanning(11)It is interior to be equipped with damper body seal Circle(12).
4. a kind of fluid pressure type variable-damp vibration damper with generating function according to claim 1, it is characterised in that institute State absorber rod(3)For hollow member, the brushless motor(4)Lead-out wire(10)From the absorber rod(3)It draws inside And it is connect with the vehicle control device.
5. a kind of fluid pressure type variable-damp vibration damper with generating function according to claim 1, it is characterised in that institute State bearing(6)For rolling bearing.
6. a kind of fluid pressure type variable-damp vibration damper with generating function according to claim 1, it is characterised in that institute Stating piston further includes and piston rotation set(7)The piston lower cover that bottom is fixed or is integrally designed(13), the piston lower cover (13)With the planetary gear(9)Between be provided with several rolling steel balls(14).
7. a kind of fluid pressure type variable-damp vibration damper with generating function according to claim 1 or 6, it is characterised in that The piston upper cover(5)With piston rotation set(7)Junction is provided with piston packing(15).
CN201611137082.XA 2016-12-12 2016-12-12 A kind of fluid pressure type variable-damp vibration damper with generating function CN106641080B (en)

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CN106641080B true CN106641080B (en) 2018-08-17

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4319576A1 (en) * 1993-06-14 1994-12-15 Bilstein August Gmbh Co Kg Electric motor adjustment drive (displacement drive)
JP2005214307A (en) * 2004-01-29 2005-08-11 Showa Corp Hydraulic draft gear
CN102673336A (en) * 2012-05-16 2012-09-19 刘向明 Generating device for recycling energy of suspended vibration absorber to charge new-energy-source automobile
CN103580371A (en) * 2013-11-25 2014-02-12 中国农业大学 Ball screw type vehicle vibration absorber capable of realizing rotary power generation
CN103591202A (en) * 2013-11-25 2014-02-19 中国农业大学 Pinion-and-rack rotating power generation car shock absorber
CN104675903A (en) * 2015-01-30 2015-06-03 哈尔滨工程大学 Hydraulic damper capable of generating electricity
CN105114503A (en) * 2015-09-06 2015-12-02 西南交通大学 Automobile energy-feedback type damper
CN105864342A (en) * 2016-04-25 2016-08-17 山东交通学院 Ball circuit type electromagnetic energy-feedback shock absorber
CN206309846U (en) * 2016-12-12 2017-07-07 上乘精密科技(苏州)有限公司 A kind of fluid pressure type variable-damp vibration damper with generating function

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6391512B2 (en) * 2015-03-25 2018-09-19 株式会社ショーワ Pressure shock absorber

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4319576A1 (en) * 1993-06-14 1994-12-15 Bilstein August Gmbh Co Kg Electric motor adjustment drive (displacement drive)
JP2005214307A (en) * 2004-01-29 2005-08-11 Showa Corp Hydraulic draft gear
CN102673336A (en) * 2012-05-16 2012-09-19 刘向明 Generating device for recycling energy of suspended vibration absorber to charge new-energy-source automobile
CN103580371A (en) * 2013-11-25 2014-02-12 中国农业大学 Ball screw type vehicle vibration absorber capable of realizing rotary power generation
CN103591202A (en) * 2013-11-25 2014-02-19 中国农业大学 Pinion-and-rack rotating power generation car shock absorber
CN104675903A (en) * 2015-01-30 2015-06-03 哈尔滨工程大学 Hydraulic damper capable of generating electricity
CN105114503A (en) * 2015-09-06 2015-12-02 西南交通大学 Automobile energy-feedback type damper
CN105864342A (en) * 2016-04-25 2016-08-17 山东交通学院 Ball circuit type electromagnetic energy-feedback shock absorber
CN206309846U (en) * 2016-12-12 2017-07-07 上乘精密科技(苏州)有限公司 A kind of fluid pressure type variable-damp vibration damper with generating function

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