CN204882100U - Car fourth simulation electromagnetism suspension and test bench thereof - Google Patents

Car fourth simulation electromagnetism suspension and test bench thereof Download PDF

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Publication number
CN204882100U
CN204882100U CN201520317692.2U CN201520317692U CN204882100U CN 204882100 U CN204882100 U CN 204882100U CN 201520317692 U CN201520317692 U CN 201520317692U CN 204882100 U CN204882100 U CN 204882100U
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CN
China
Prior art keywords
ball screw
wheel
vehicle
pouring weight
guide
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CN201520317692.2U
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Chinese (zh)
Inventor
邓志君
任少云
梁松峰
董铸荣
韩承伟
贺萍
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深圳职业技术学院
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Priority to CN201520317692.2U priority Critical patent/CN204882100U/en
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Publication of CN204882100U publication Critical patent/CN204882100U/en

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Abstract

The utility model discloses a car fourth simulation electromagnetism suspension and electromagnetism suspension test bench. In this simulation electromagnetism suspension, ball screw passes spring support cover, through -hole in proper order, is connected with the automobile body pouring weight through ball screw bearing and bearing frame, the ball screw upper end can drive the displacement sensor and the permanent magnetism brushless DC motor that install in automobile body pouring weight upper surface and rotate, the ball screw nut loops through nut bracket, damping force transducer, damping spring support, guiding axle, fork and the wheel connection, the vertical excitation of different frequency and amplitude can be exerted to the wheel to the machinery vibration exciter, and the relative rectilinear movement between wheel and the automobile body pouring weight can turn into the rotary motion that can drive permanent magnetism brushless DC motor through ball screw mechanism. Through above -mentioned embodiment, can satisfy the electromagnetic type present can the type experimental needs of initiative suspension, its simple structure, cost are lower, can improve the experiment precision.

Description

Automobile 1/4th analog electrical magnetcisuspension frame and testing table thereof
Technical field
The utility model relates to a kind of automobile 1/4th suspension testing table, particularly relates to a kind of automobile 1/4th analog electrical magnetcisuspension frame, mechanical vibration exciter and simulation electromagnetic suspension testing table thereof.
Background technology
At present, fluid pressure type active suspension actuator of electric has been widely used in high-end passenger car and commercial car, but its shortcoming be cost compared with high, energy consumption large, complex structure and attachment device (fueller etc.) quality larger.
Electromagnetic type energy regenerative type Active suspension can reclaim and encourage by uneven road surface the vibrational energy caused, for active damping, especially be applied on electric automobile, by existing change-over circuit and energy storage system, be beneficial to storage and the recycling of energy, become the study hotspot in reclaiming energy suspension field.
Wherein, adopt " ball-screw+energy regenerative motor " formula electromagnetic actuator between the rectilinear motion and the rotary motion of motor of suspension, carry out the conversion of power and energy, this type of energy regenerative suspension, in response characteristic, positioning precision, the aspects such as size and energy regenerative efficiency are all better than other several structure, are going deep into the most and widely used energy regenerative suspension frame structure of current Chinese scholars research.No matter be passive suspension or Active suspension, all need to test and performance evaluation the characteristic of vibration damper and shock-absorbing spring.
Automobile 1/4th auto model evaluates suspension property, carries out suspension optimization design and the most frequently used model developed by controller, in recent years, seen that the suspension testing table made with automobile 1/4th model uses in testing laboratory.
But mainly there is following problem in existing design:
1, complex structure;
2, adopt mass and spring to replace wheel and wheel, and the rigidity of wheel is not easily measured, thus have impact on test degree of accuracy;
3, the test needs of electromagnetic type energy regenerative type Active suspension can not be met;
4, have employed expensive hydraulic vibration exciter.
Utility model content
The utility model provides a kind of automobile 1/4th analog electrical magnetcisuspension frame, mechanical vibration exciter and simulation electromagnetic suspension testing table thereof for solving the problems of the technologies described above, the test needs of electromagnetic type energy regenerative type Active suspension can be met, its structure is simple, cost is lower, and can improve test accuracy.
For solving the problems of the technologies described above, the utility model provides a kind of simulation electromagnetic suspension, comprising: vehicle body pouring weight, ball screw bearing, jump ring, bearing seat, spring support sleeve, ball screw, the first displacement transducer, permanent-magnet brushless DC electric machine, ball screw nut, nut bracket, shock-absorbing spring bearing, shock-absorbing spring, damping force sensor; The center of described vehicle body pouring weight is provided with through hole, and described bearing seat is bolted and is installed on one end that through hole is positioned at vehicle body pouring weight upper surface, and described spring support sleeve is installed on one end that through hole is positioned at vehicle body pouring weight lower surface; Described ball screw through spring support sleeve, through hole, is connected with bearing seat by ball screw bearing successively; Described ball screw bearing is axially fixed on bearing seat by upper and lower two jump rings, ball screw can not be moved axially but can rotate, described ball screw upper end can drive the first displacement transducer and permanent-magnet brushless DC electric machine rotation that are installed on vehicle body pouring weight upper surface; Described ball screw nut is sheathed on ball screw also can do rectilinear motion along ball screw in the space of spring support sleeve restriction, described ball screw nut is provided with nut bracket, described damping force sensor upper end attaching nut's support, lower end connects shock-absorbing spring bearing; Surface bearing shock-absorbing spring on described shock-absorbing spring bearing, below by the axis of guide, wheel fork, is pressed on wheel; Described shock-absorbing spring is located at that nut bracket is outer and its two ends abut spring support sleeve, shock-absorbing spring bearing respectively.
Further, described vehicle body pouring weight upper surface is provided with electric machine support, described permanent-magnet brushless DC electric machine is installed on electric machine support, described ball screw upper end is provided with the first transmission gear, the output shaft of described permanent-magnet brushless DC electric machine is provided with the second transmission gear, realizes the rotation that ball screw drives permanent-magnet brushless DC electric machine by described first transmission gear with engaging of the second transmission gear.
Further, described vehicle body pouring weight upper surface is provided with large belt wheel supporting base and sensor stand, described large belt wheel supporting base is provided with large belt wheel, described vehicle body pouring weight upper surface is provided with large belt wheel supporting base and sensor stand, described large belt wheel supporting base is provided with large belt wheel, described ball screw upper end is provided with small pulley, described large belt wheel is connected by driving-belt with small pulley, described first displacement transducer is installed on sensor stand, by detecting the angular displacement of large belt wheel, calculate the angular displacement of ball screw, calculate the relative displacement of vehicle body pouring weight and wheel simultaneously.
Simulation electromagnetic suspension of the present utility model: by arranging the deadweight of vehicle body pouring weight simulation vehicle body, vehicle body pouring weight arranges ball screw, the ball screw nut be socketed with ball screw, shock-absorbing spring bearing, shock-absorbing spring, and the parts such as the permanent-magnet brushless DC electric machine to be connected with ball screw, relative rectilinear between wheel and vehicle body pouring weight is moved and can be converted into the rotary motion that can drive permanent-magnet brushless DC electric machine by ball wire rod mechanism, otherwise, permanent-magnet brushless DC electric machine can produce driving force under the control of its controller, control is initiatively produced to suspension, realize ACTIVE CONTROL.
For solving the problems of the technologies described above, the utility model also provides a kind of mechanical vibration exciter, comprising: rocker, tire bracket, AC induction motor, crank, connecting rod, at least two the first straight ball-guides and sliding sleeves; Described first straight ball-guide is arranged at the both sides of tire bracket respectively, described sliding sleeve is sheathed on the first straight ball-guide, the two side arms of described tire bracket to be connected with sliding sleeve respectively by a cross bar and then tire bracket can be moved up and down along the first straight ball-guide, the both sides of contiguous first straight ball-guide of described rocker are connected with the both sides arm axle of tire bracket position therebetween, front end, the other end of one end connection AC induction motor of described crank are connected with one end of connecting rod, and the other end of described connecting rod is connected with rocker.
Further, described crank be provided with multiple connecting portion and then be optionally connected with connecting rod, described tire bracket is provided with pressure transducer; Described first straight ball-guide quantity is three, wherein two described first straight ball-guides are used for being connected tire bracket can be moved up and down along it with tire bracket, first straight ball-guide described in another is provided with second displacement sensor, described second displacement sensor is connected with the sliding sleeve of one of them by a cross bar and then is detected the displacement of tire bracket.
Further, described mechanical vibration exciter also comprises fulcrum support, screw body and stepper motor, described fulcrum support installing also can relative to screw body rectilinear motion on screw body, the output shaft of described stepper motor is connected to drive screw body to rotate and then is with activity supporting point support rectilinear motion with screw body, described fulcrum Bracket setting is in one end away from connecting rod of rocker, wherein, described fulcrum support is provided with fulcrum shaft to support rocker.
Further, described fulcrum support is arranged at intervals with multiple installation portion, described fulcrum shaft removably and be optionally installed on arbitrary installation portion.
Mechanical vibration exciter of the present utility model: by arranging the parts such as AC induction motor, crank, connecting rod, tire bracket, rocker, lever principle can be utilized to realize the simulation of road surface to wheel vertical vibration, further, it adopts mechanical system to simulate vertical vibration, and structure is simple, cost is lower.
For solving the problems of the technologies described above, the utility model also provides a kind of simulation electromagnetic suspension testing table, comprising: frame; Be installed on the simulation electromagnetic suspension as described in above-mentioned any one embodiment in described frame and the mechanical vibration exciter as described in above-mentioned any one embodiment; Described simulation electromagnetic suspension testing table also comprises the vehicle wheel component being detachably installed on simulation electromagnetic suspension, wherein, described vehicle wheel component comprises the axis of guide, wheel fork and wheel, described wheel fork is fixedly connected with the described axis of guide, in the linear ball bearing that the described axis of guide is installed on simulation electromagnetic suspension and can axially-movable within it, described wheel to be installed on wheel fork and to abut and is arranged on the tire bracket of mechanical vibration exciter.
Further, described frame is provided with multiple second straight ball-guide, described second straight ball-guide all wears vehicle body pouring weight, and each described second straight ball-guide top is linked into an integrated entity by a guide rail link.
Further, described vehicle body pouring weight being provided with the first acceleration transducer for measuring vehicle body pouring weight acceleration, described shock-absorbing spring bearing being provided with the second acceleration transducer for measuring wheel acceleration; Described frame is also provided with the first slide rail, and described vehicle body pouring weight is provided with the first adjutage, and described first adjutage is sheathed on the first slide rail, described first adjutage is provided with the triple motion sensor for measuring the displacement of vehicle body pouring weight; Described frame is also provided with the second slide rail, and described shock-absorbing spring bearing is provided with the second adjutage, and described second adjutage is sheathed on the second slide rail, described second adjutage is provided with the 4th displacement transducer for measuring wheel displacements.
Automobile 1/4th analog electrical magnetcisuspension frame testing table of the present utility model: simulation electromagnetic suspension and mechanical vibration exciter are installed in frame, and whole testing table is general frame structure, solid and reliable; Adopt the mechanical vibration exciter based on lever principle, relative to hydraulic vibration exciter, cost is lower; And, remain wheel (comprising tire) this nonspring carried mass, the rigidity of wheel can be measured, improve test degree of accuracy, simultaneously, have employed straight ball-guide structure, decrease the friction force between spring carried mass and nonspring carried mass, make test findings closer to actual suspension vibration situation; In addition, the permanent-magnet brushless DC electric machine be associated with ball screw is set, the test needs of electromagnetic type energy regenerative type Active suspension can be met.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model simulation electromagnetic suspension testing table embodiment.
Fig. 2 is the side view of the electromagnetic suspension of simulation shown in Fig. 1 testing table.
Fig. 3 is the front view of simulating electromagnetic suspension in the electromagnetic suspension of simulation shown in Fig. 1 testing table.
Fig. 4 is the schematic diagram of mechanical vibration exciter in the electromagnetic suspension of simulation shown in Fig. 1 testing table.
Embodiment
Below in conjunction with drawings and embodiments, the utility model is described in detail.
Consult incorporated by reference to Fig. 1 to Fig. 4, the utility model provides a kind of automobile 1/4th analog electrical magnetcisuspension frame testing table, comprising: frame 1; Be installed on the simulation electromagnetic suspension 110 in frame 1 and mechanical vibration exciter 111.
Specifically, refer to Fig. 3, this simulation electromagnetic suspension 110 is for damping property test, and it comprises: vehicle body pouring weight 8, ball screw bearing 43, jump ring 44, bearing seat 42, spring support sleeve 34, ball screw 33, first displacement transducer 9, permanent-magnet brushless DC electric machine 39, ball screw nut 32, nut bracket 31, shock-absorbing spring bearing 28, shock-absorbing spring 30, damping force sensor 29.
Wherein, vehicle body pouring weight 8 is for simulating vehicle body deadweight, its center position is provided with a through hole, and bearing seat 42 is bolted and is installed on one end that through hole is positioned at vehicle body pouring weight upper surface, and spring support sleeve 34 is installed on one end that through hole is positioned at vehicle body pouring weight 8 lower surface.Ball screw 33 through spring support sleeve 34, through hole, is connected with bearing seat 42 by ball screw bearing 43 successively; Ball screw bearing 43 is axially fixed on bearing seat by upper and lower two jump rings 44, ball screw 33 can not move axially but can rotate, and ball screw 33 upper end can drive the first displacement transducer 9 of being installed on vehicle body pouring weight 8 upper surface and permanent-magnet brushless DC electric machine 39 to rotate.Ball screw nut 32 is sheathed on ball screw 33 also can do rectilinear motion along ball screw 33 in the space of spring support sleeve 34 restriction, one-body molded or be removably provided with a nut bracket 31 on ball screw nut 32, damping force sensor 29 upper end attaching nut's support 31, lower end connects shock-absorbing spring bearing 28.Shock-absorbing spring bearing 28 also supports shock-absorbing spring 30 above, and below by the axis of guide 26, wheel fork 16, be pressed on wheel 17, this shock-absorbing spring bearing 28 is pressed on the axis of guide 26 by vehicle body pouring weight 8, can not be separated in motion process with the axis of guide 26.Shock-absorbing spring 30 is located at that nut bracket 31 is outer and its two ends abut spring support sleeve 34, shock-absorbing spring bearing 28 respectively.
In an embody rule embodiment, vehicle body pouring weight 8 upper surface is provided with an electric machine support 41, and permanent-magnet brushless DC electric machine 39 is specifically installed on electric machine support 41.Ball screw 33 upper end is provided with the first transmission gear, and the output shaft of permanent-magnet brushless DC electric machine 39 is provided with the second transmission gear, realizes the rotation that ball screw 33 drives permanent-magnet brushless DC electric machine 39 by the first transmission gear with engaging of the second transmission gear.
Further, vehicle body pouring weight 8 upper surface is also provided with large belt wheel supporting base 35 and sensor stand, large belt wheel supporting base 35 is provided with large belt wheel 36, ball screw 33 upper end is provided with small pulley 38, large belt wheel 36 is connected by driving-belt 37 with small pulley 38, and the first displacement transducer 9 is installed on sensor stand, by detecting the angular displacement of large belt wheel 36, calculate the angular displacement of ball screw 33, calculate the relative displacement of vehicle body pouring weight 8 and wheel 17 simultaneously.Wherein, coordinated by the transmission of large belt wheel 36, small pulley 38 and driving-belt 37, can ratio of gear be changed, make the motion of the first displacement transducer 9 be no more than a circle, be convenient to the collection of respective corners displacement data.
Consult incorporated by reference to Fig. 2 and Fig. 4, this mechanical vibration exciter 111 creates conditions and then facilitates the vibration damping of follow-up simulation electromagnetic suspension 110 to test for vertical the beating for simulating wheel 17, and it comprises: rocker 2, tire bracket 20, AC induction motor 5, crank 4, connecting rod 3, at least two the first straight ball-guides 18 and sliding sleeve 180; First straight ball-guide 18 is arranged at the both sides of tire bracket 20 respectively, sliding sleeve 180 is sheathed on the first straight ball-guide 18, the two side arms of tire bracket 20 to be connected with sliding sleeve 180 respectively by a cross bar 181 and then tire bracket 20 can be moved up and down along the first straight ball-guide 18, the both sides of contiguous first straight ball-guide 18 of rocker 2 are connected with the both sides arm axle of tire bracket 20 position therebetween, front end, the other end of one end connection AC induction motor 5 of crank 4 are connected with one end of connecting rod 3, and the other end of connecting rod 3 is connected with rocker 2.This tire bracket 20 is provided with the pressure transducer 24 for measuring wheel 17 pairs of tire bracket 20 pressure.
The rear end of this AC induction motor 5 is provided with flywheel 6, flywheel 6 due to inertia effect can storage power and release energy, what contribute to tire bracket 20 steadily vertically beats and then better simulated roadway condition.
Further, simulation electromagnetic suspension testing table also comprises the vehicle wheel component being detachably installed on simulation electromagnetic suspension 110, wherein, vehicle wheel component comprises the axis of guide 26, wheel fork 16 and wheel 17, wheel fork 16 is fixedly connected with the axis of guide 26, in the linear ball bearing 27 that the axis of guide 26 is installed on simulation electromagnetic suspension 110 and can axially-movable within it, wheel 17 to be installed on wheel fork 16 and to abut and is arranged on the tire bracket 20 of mechanical vibration exciter 111.
In a preferred embodiment, multiple connecting portion can be set on crank 4, to be optionally connected with connecting rod 3, by connecting rod 3 is connected to different connecting portions, the simulation of road surface to wheel 17 amplitude can be realized.
In a preferred embodiment, mechanical vibration exciter 111 also comprises fulcrum support 22, screw body 21 and stepper motor 19.Wherein, fulcrum support 22 is installed on also can relative to screw body 21 rectilinear motion on screw body 21, the output shaft of stepper motor 19 is connected with screw body 21 drive screw body 21 to rotate and then be with activity supporting point support 22 rectilinear motion, fulcrum support 22 is arranged at rocker 2 one end away from connecting rod 3, wherein, fulcrum support 22 is provided with fulcrum shaft 23 to support rocker 2.Tong Guo Walk enters the amplitude that motor drives the position of screw body 21 and then change fulcrum shaft 23 to act on wheel 17 to change road surface, and its automatization level is higher, and time saving and energy saving.
Certainly, can also arrange multiple installation portion by interval on fulcrum support 22, fulcrum shaft 23 removably and be optionally installed on arbitrary installation portion, and then changes the position of fulcrum shaft 23 in artificial mode and changes the amplitude that road surface acts on wheel 17.
Specifically, first straight ball-guide 18 quantity is set to three, wherein two the first straight ball-guides 18 make tire bracket 20 to move up and down along it for being connected with tire bracket 20, another first straight ball-guide 18 is provided with second displacement sensor 25, and second displacement sensor 25 is connected and then measures the displacement (i.e. pavement displacement) of tire bracket 20 by a cross bar 182 and the sliding sleeve 180 of one of them.
In an embody rule embodiment, frame 1 is provided with multiple second straight ball-guide 7, second straight ball-guide 7 and all wears vehicle body pouring weight 8, and each second straight ball-guide 7 top is linked into an integrated entity by a guide rail link 10.For example, vehicle body pouring weight 8 is square structure, the quantity of the second straight ball-guide 7 is four, each second straight ball-guide 7 is square arrangement and being uniformly distributed on vehicle body pouring weight 8, makes each region that vehicle body pouring weight 8 is moving up and down vehicle body pouring weight 8 in process can synchronously, move with displacement.
Vehicle body pouring weight 8 being provided with the first acceleration transducer 12 for measuring vehicle body pouring weight 8 acceleration, shock-absorbing spring bearing 28 being provided with the second acceleration transducer 15 for measuring wheel 17 acceleration; Frame 1 is also provided with the first slide rail 101, vehicle body pouring weight 8 is provided with the first adjutage 81, first adjutage 81 and is sheathed on the first slide rail 101, the first adjutage 81 is provided with the triple motion sensor 13 for measuring vehicle body pouring weight 8 displacement; Frame 1 is also provided with the second slide rail 102, shock-absorbing spring bearing 28 is provided with the second adjutage 281, second adjutage 281 and is sheathed on the second slide rail 102, the second adjutage 281 is provided with the 4th displacement transducer 14 for measuring wheel 17 displacement.
The principle of work of the simulation electromagnetic suspension testing table of the utility model embodiment is:
In mechanical vibration exciter 111, AC induction motor 5 can as required under the driving of its controller, random change frequency is with the acting frequency of simulated roadway to wheel 17, and AC induction motor 5 front end (output shaft) drives crank 4 to rotate, and crank 4 is by connecting rod 3 and then drive rocker 2 to move up and down.Whole rocker 2 is equivalent to a leverage, rocker 2 is connected with tire bracket 20 axle at middle right position, because the constraint that tire bracket 20 is subject to straight ball-guide 18 can only move up and down by vertical ground, beat so tire bracket 20 is equivalent to the vertical of road surface supporting wheel 17, fulcrum (being realized by fulcrum shaft 23) can move left and right as required at any time, so just can change the amplitude that road surface acts on wheel 17 at any time.This fulcrum shaft 23 is arranged on fulcrum support 22, by stepper motor 19 by driving screw body 21 to rotate and then moving to realize moving left and right of fulcrum together with activity supporting point support 22.Realize measuring the pressure between wheel and ground of simulating between wheel 17 and tire bracket 20 by the wheel pressure sensors 24 installed.In addition, the amplitude that road surface acts on wheel 17 also also can be changed by the link position (namely changing the size of crank 4 radius) changing crank 4 and connecting rod 3.
Further, when wheel 17 bob, the axis of guide 26 is driven to move up and down along the linear ball bearing 27 in simulation electromagnetic suspension 110, then shock-absorbing spring bearing 28 and shock-absorbing spring 30 is driven to move up and down, when shock-absorbing spring 30 lower end moves up and down, due to the inertia effects of vehicle body pouring weight 8, the upper end of shock-absorbing spring 30 starts the motion lagging behind lower end together with vehicle body pouring weight 8, thus makes shock-absorbing spring 30 have compression and extend phenomenon.Now, ball screw nut 32 has linear relative movement relative to shock-absorbing spring 30 upper end, ball screw 33 is so just made to rotate, ball screw 33 upper end drives permanent-magnet brushless DC electric machine 39 to rotate by transmission gear to 40 again and generates electricity, make it the stretching motion hindering shock-absorbing spring 30, play the effect of vibration damper.Otherwise permanent-magnet brushless DC electric machine 39 can produce driving force under the control of its controller, control is initiatively produced to suspension, realizes ACTIVE CONTROL.In addition, ball screw 33, by driving small pulley 38, driving-belt 37, large belt wheel 36 and then making the first displacement transducer 9 rotate, namely can calculate the decrement of shock-absorbing spring 30 and the relative displacement of vehicle body pouring weight 8 and wheel 17.In addition, by being arranged on the damping force sensor 29 between shock-absorbing spring bearing 28 and nut bracket 31, instantaneous damping force can be measured.First acceleration transducer 12 and triple motion sensor 13 measure acceleration and the displacement of spring carried mass respectively, and the second acceleration transducer 15 and the 4th displacement transducer 14 measure acceleration and the displacement of nonspring carried mass respectively.
Certainly, the vibration signal (comprising each displacement signal and each acceleration signal) that each sensor can be detected inputs ECU control module, ECU control module by analysis, judge after, be used as power (i.e. electronic, the generating state of permanent-magnet brushless DC electric machine 39) of electromagnetic actuator is controlled in real time according to control strategy, to cushion on one's own initiative and the vibration of vehicle body of decaying and impact, the electric energy of generation is carried out recycling simultaneously.
Vehicle body pouring weight 8 is along straight ball-guide 7, and the axis of guide 26 linearly ball bearing 27 moves up and down, and decreases the friction force between spring carried mass and nonspring carried mass, makes test findings closer to actual suspension vibration situation.In addition pull down guide rail link 10, the vehicle body pouring weight of different quality can be selected as required, equally also can select the shock-absorbing spring of different-stiffness as required.Whole testing table have employed all-in-one-piece framed structure, more solid and reliable.
As long as change the structure of simulation electromagnetic suspension a little, this simulation electromagnetic suspension testing table is equally applicable to the detection experiment to common passive suspension, and purposes is flexible.
In sum, automobile 1/4th analog electrical magnetcisuspension frame testing table of the present utility model, has following beneficial effect:
(1) simulation electromagnetic suspension and mechanical vibration exciter are installed in frame, and whole testing table is general frame structure, solid and reliable.
(2) adopt the mechanical vibration exciter based on lever principle, relative to hydraulic vibration exciter, cost is lower, and closing to reality.
(3) wheel (comprising tire) this nonspring carried mass is remained, the rigidity of wheel can be measured, improve test degree of accuracy, and have employed straight ball-guide structure, decrease the friction force between spring carried mass and nonspring carried mass, make test findings closer to actual suspension vibration situation.
(4) permanent-magnet brushless DC electric machine be associated with ball screw is set, the test needs of electromagnetic type energy regenerative type Active suspension can be met; And can by the simple structure changing this simulation electromagnetic suspension, meet the test needs of common passive suspension, its purposes is more flexible.
The utility model also provides a kind of simulation electromagnetic suspension as described in above-mentioned any one embodiment.Specifically refer to above, repeat no longer one by one herein.
Meanwhile, the utility model also provides the mechanical vibration exciter as described in above-mentioned any one embodiment.Specifically refer to above, also repeat no longer one by one herein.
These are only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims (9)

1. automobile 1/4th analog electrical magnetcisuspension frame, is characterized in that, comprising:
Vehicle body pouring weight, ball screw bearing, jump ring, bearing seat, spring support sleeve, ball screw, the first displacement transducer, permanent-magnet brushless DC electric machine, ball screw nut, nut bracket, shock-absorbing spring bearing, shock-absorbing spring, damping force sensor;
The center of described vehicle body pouring weight is provided with through hole, and described bearing seat is bolted and is installed on one end that through hole is positioned at vehicle body pouring weight upper surface, and described spring support sleeve is installed on one end that through hole is positioned at vehicle body pouring weight lower surface; Described ball screw through spring support sleeve, through hole, is connected with bearing seat by ball screw bearing successively; Described ball screw bearing is axially fixed on bearing seat by upper and lower two jump rings, ball screw can not be moved axially but can rotate, described ball screw upper end can drive the first displacement transducer and permanent-magnet brushless DC electric machine rotation that are installed on vehicle body pouring weight upper surface; Described ball screw nut is sheathed on ball screw also can do rectilinear motion along ball screw in the space of spring support sleeve restriction, described ball screw nut is provided with nut bracket, described damping force sensor upper end attaching nut's support, lower end connects shock-absorbing spring bearing; Surface bearing shock-absorbing spring on described shock-absorbing spring bearing, below by the axis of guide, wheel fork, is pressed on wheel; Described shock-absorbing spring is located at that nut bracket is outer and its two ends abut spring support sleeve, shock-absorbing spring bearing respectively.
2. automobile 1/4th analog electrical magnetcisuspension frame according to claim 1, is characterized in that:
Described vehicle body pouring weight upper surface is provided with electric machine support, described permanent-magnet brushless DC electric machine is installed on electric machine support, described ball screw upper end is provided with the first transmission gear, the output shaft of described permanent-magnet brushless DC electric machine is provided with the second transmission gear, realizes the rotation that ball screw drives permanent-magnet brushless DC electric machine by described first transmission gear with engaging of the second transmission gear.
3. automobile 1/4th analog electrical magnetcisuspension frame according to claim 1, is characterized in that:
Described vehicle body pouring weight upper surface is provided with large belt wheel supporting base and sensor stand, described large belt wheel supporting base is provided with large belt wheel, described ball screw upper end is provided with small pulley, described large belt wheel is connected by driving-belt with small pulley, described first displacement transducer is installed on sensor stand, by detecting the angular displacement of large belt wheel, calculating the angular displacement of ball screw, calculating the relative displacement of vehicle body pouring weight and wheel simultaneously.
4. simulate an electromagnetic suspension testing table, it is characterized in that, comprising:
Frame;
Be installed on automobile 1/4th analog electrical magnetcisuspension frame as described in any one of claim 1-3 in described frame and mechanical vibration exciter;
Described mechanical vibration exciter comprises rocker, tire bracket, AC induction motor, crank, connecting rod, at least two the first straight ball-guides and sliding sleeves; Described first straight ball-guide is arranged at the both sides of tire bracket respectively, described sliding sleeve is sheathed on the first straight ball-guide, the two side arms of described tire bracket to be connected with sliding sleeve respectively by a cross bar and then tire bracket can be moved up and down along the first straight ball-guide, the both sides of contiguous first straight ball-guide of described rocker are connected with the both sides arm axle of tire bracket position therebetween, front end, the other end of one end connection AC induction motor of described crank are connected with one end of connecting rod, and the other end of described connecting rod is connected with rocker;
Described simulation electromagnetic suspension testing table also comprises the vehicle wheel component being detachably installed on simulation electromagnetic suspension, wherein, described vehicle wheel component comprises the axis of guide, wheel fork and wheel, described wheel fork is fixedly connected with the described axis of guide, in the linear ball bearing that the described axis of guide is installed on simulation electromagnetic suspension and can axially-movable within it, described wheel to be installed on wheel fork and to abut and is arranged on the tire bracket of mechanical vibration exciter.
5. simulation electromagnetic suspension testing table according to claim 4, is characterized in that:
Described frame is provided with multiple second straight ball-guide, described second straight ball-guide all wears vehicle body pouring weight, and each described second straight ball-guide top is linked into an integrated entity by a guide rail link.
6. simulation electromagnetic suspension testing table according to claim 4, is characterized in that:
Described vehicle body pouring weight being provided with the first acceleration transducer for measuring vehicle body pouring weight acceleration, described shock-absorbing spring bearing being provided with the second acceleration transducer for measuring wheel acceleration;
Described frame is also provided with the first slide rail, and described vehicle body pouring weight is provided with the first adjutage, and described first adjutage is sheathed on the first slide rail, described first adjutage is provided with the triple motion sensor for measuring the displacement of vehicle body pouring weight;
Described frame is also provided with the second slide rail, and described shock-absorbing spring bearing is provided with the second adjutage, and described second adjutage is sheathed on the second slide rail, described second adjutage is provided with the 4th displacement transducer for measuring wheel displacements.
7. simulation electromagnetic suspension testing table according to claim 4, is characterized in that:
Described crank be provided with multiple connecting portion and then be optionally connected with connecting rod, described tire bracket is provided with pressure transducer;
Described first straight ball-guide quantity is three, wherein two described first straight ball-guides are used for being connected tire bracket can be moved up and down along it with tire bracket, first straight ball-guide described in another is provided with second displacement sensor, described second displacement sensor is connected with the sliding sleeve of one of them by a cross bar and then is detected the displacement of tire bracket.
8. simulation electromagnetic suspension testing table according to claim 4, is characterized in that:
Described mechanical vibration exciter also comprises fulcrum support, screw body and stepper motor, described fulcrum support installing also can relative to screw body rectilinear motion on screw body, the output shaft of described stepper motor is connected to drive screw body to rotate and then is with activity supporting point support rectilinear motion with screw body, described fulcrum Bracket setting is in one end away from connecting rod of rocker, wherein, described fulcrum support is provided with fulcrum shaft to support rocker.
9. simulation electromagnetic suspension testing table according to claim 4, is characterized in that:
Described fulcrum support is arranged at intervals with multiple installation portion, and described fulcrum shaft removably and be optionally installed on arbitrary installation portion.
CN201520317692.2U 2015-05-15 2015-05-15 Car fourth simulation electromagnetism suspension and test bench thereof CN204882100U (en)

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CN204882100U true CN204882100U (en) 2015-12-16

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104897420A (en) * 2015-05-15 2015-09-09 深圳职业技术学院 Automobile quarter simulation electromagnetic hanger bracket, mechanical vibration exciter, and test bench
CN106872176A (en) * 2017-01-18 2017-06-20 南京理工大学 A kind of electromagnetic linear actuator testing stand
CN107907352A (en) * 2017-11-07 2018-04-13 燕山大学 Vehicle active suspension performance detection stand
CN108414247A (en) * 2018-03-09 2018-08-17 西安交通大学 A kind of electric automobile energy recycling suspension property and parameter designing test-bed and test method
CN109488711A (en) * 2018-12-28 2019-03-19 北京邮电大学 Linear motion and rotary motion dual-purpose type electromagnetic damper

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104897420A (en) * 2015-05-15 2015-09-09 深圳职业技术学院 Automobile quarter simulation electromagnetic hanger bracket, mechanical vibration exciter, and test bench
CN106872176A (en) * 2017-01-18 2017-06-20 南京理工大学 A kind of electromagnetic linear actuator testing stand
CN107907352A (en) * 2017-11-07 2018-04-13 燕山大学 Vehicle active suspension performance detection stand
CN108414247A (en) * 2018-03-09 2018-08-17 西安交通大学 A kind of electric automobile energy recycling suspension property and parameter designing test-bed and test method
CN109488711A (en) * 2018-12-28 2019-03-19 北京邮电大学 Linear motion and rotary motion dual-purpose type electromagnetic damper

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