CN206515065U - Wheel energy harvester testing stand - Google Patents
Wheel energy harvester testing stand Download PDFInfo
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- CN206515065U CN206515065U CN201720224029.7U CN201720224029U CN206515065U CN 206515065 U CN206515065 U CN 206515065U CN 201720224029 U CN201720224029 U CN 201720224029U CN 206515065 U CN206515065 U CN 206515065U
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- wheel hub
- piezoelectric cantilever
- drive shaft
- simulation
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Abstract
The utility model discloses a kind of wheel energy harvester testing stand, include support body, motor, drive shaft and simulation wheel hub, wherein motor, drive shaft and simulation wheel hub are assemblied on support body, motor is connected by shaft coupling with drive shaft, electric slip ring is arranged with drive shaft, the rear end of drive shaft is connected with simulation wheel hub, motor drives simulation wheel hub to synchronize rotation by drive shaft, non-contact exciter is equipped with simulation wheel hub, laser displacement sensor, force snesor and piezoelectric cantilever, non-contact exciter, laser displacement sensor, the signal wire of force snesor and piezoelectric cantilever is connected with the electric wire on electric slip ring rotor.Beneficial effect：The quick exploitation to prisoner's energy device can be realized, can realize that mode changes with the change of speed, the moment keeps piezoelectric cantilever to be in resonance state, the energy conversion efficiency and operation speed of machine scope of prisoner's energy device is improved, enhances practicality.
Description
Technical field
The utility model is related to a kind of testing stand, more particularly to a kind of wheel energy harvester testing stand.
Background technology
Tire is a part more important in each building block of automobile.Automobile passes through with ground intermolecular forces
Tire is transmitted.Therefore obtain these active forces and as active safety system reference data and control parameter for driving
Tool has very important significance for safety.At present, many Tire production commercial cities are being directed to intelligence wheel of the research and development with sensor
Tire, is obtained by these sensors including temperature, pressure, numerous parameters including wheel revolutions.
The existing mode energized to sensor is active mostly, i.e., sensor is entered by installing lithium battery
Row power supply.The shortcoming of this method is：Because sensor is installed on inside tires, therefore cause the operation of replacing battery more
Complexity, reduces the practicality of device.Meanwhile, the energy that tire vibration is produced is wasted significantly, therefore by the energy of inside tires
It will be a kind of thinking solved the problems, such as to be converted into electric energy supply sensor to use.Using piezoelectric by the mechanical energy of unsteadiness of wheels
It is the passive energy-provision way being widely studied a kind of in recent years to change into electric energy.What this power supply mode was mainly utilized is piezoresistive material
The direct piezoelectric effect of material, i.e., when piezoelectric is with unsteadiness of wheels, its shape can change, so as to produce electric energy.Sent out
The electric energy gone out is collected, and can be supplied to sensor after rectification uses.
However, by piezo-electric effect energy changed it is extremely inefficient, only ensureing to be made out of a piezoelectric material
Girder construction, which is in resonance state, could realize more considerable electric energy output.Existing prisoner's energy device can only be realized in single speed
Under energy conversion and export, when speed changes, the mode of its girder construction can not change with speed, it is not in
Resonance state, therefore electric energy can hardly be exported, it is impossible to normal work.
The content of the invention
The purpose of this utility model is in order to which the energy conversion efficiency for solving existing prisoner's energy device presence is low, condition of work is wanted
Harsh, poor practicability, and test development is asked to capture the problems such as exploitation that need to be used real vehicle during energy device and cause is difficult and provide
A kind of wheel energy harvester testing stand.
The wheel energy harvester testing stand that the utility model is provided includes support body, motor, drive shaft and simulation
Wheel hub, wherein motor, drive shaft and simulation wheel hub are assemblied on support body, and motor is connected by shaft coupling and drive shaft
Connect, electric slip ring is arranged with drive shaft, the rear end of drive shaft is connected with simulation wheel hub, and motor passes through drive shaft band dynamic model
Intend wheel hub and synchronize rotation, simulate and be equipped with non-contact exciter, laser displacement sensor, force snesor and pressure on wheel hub
Electric cantilever beam, non-contact exciter, laser displacement sensor, force snesor and piezoelectric cantilever signal wire and electric slip ring
On rotor electric wire connection, by the electric wire on electric slip ring stator can receive non-contact exciter, laser displacement sensor,
The signal of force snesor and piezoelectric cantilever, realizes the circulation of rotary body signal.
Motor is servomotor.
The lower end of simulation wheel hub is also equipped with balancing weight, and the position of balancing weight and weight can be adjusted.
Force snesor is arranged on simulation wheel hub by first support, and the groove in first support is used to enter force snesor
Row is spacing, and force snesor is installed by the first counter sink using screw, and two in first support the are passed through using bolt and nut
Two counter sinks and two the first elongated pore force sensors on simulation wheel hub are connected firmly with simulation wheel hub, the first elongated pore energy
It is enough to realize the vertical installation site of regulation first support, thus adapt to the piezoelectric cantilever of different length installation and its suffered by
Centrifugal force size, piezoelectric cantilever is arranged on force snesor by second support, and the gap in second support, which is used to clamp, presses
Two set square nut holes and two the 3rd counter sinks are used to install two pairs of bolts in the fixing end of electric cantilever beam, second support
Nut, makes the gap in second support diminish by these two pair bolt and nut, clamps the fixing end of piezoelectric cantilever, second support
The groove of lower end is spacing for being carried out to force snesor, and second support is connected firmly into power by the 4th counter sink using screw senses
On device
Laser displacement sensor is arranged on simulation wheel hub by the 3rd support, and two holes on the 3rd support are used to install
Laser displacement sensor, two square nut grooves are used to fill in square nut, using screw, by simulating the second elongated pore on wheel hub
The 3rd support and simulation wheel hub are connected firmly, the vertical position of laser displacement sensor can be adjusted by the second elongated pore, so that
The piezoelectric cantilever of different length is adapted to, effective measurement is carried out to the vibration displacement of piezoelectric cantilever free end.
Non-contact exciter is arranged on simulation wheel hub by the 4th support, is passed through using bolt and nut on the 4th support
Two the 5th counter sinks and simulation wheel hub on several 3rd elongated pores realize that the 4th support is connected firmly with simulating wheel hub, the 4th
The 6th counter sink that hole on support is used to install square nut hole and opposite on non-contact exciter, the 4th support is used to pacify
A pair of bolts nut is filled, the aperture in hole is diminished, several 3rd elongated pore energy on non-contact exciter, simulation wheel hub are clamped
Enough the installation site of regulation non-contact exciter in the horizontal and vertical directions, realizes to enter various sizes of piezoelectric cantilever
The reliable and effective vibrational excitation of row.
Motor, non-contact exciter, laser displacement sensor, force snesor and the pressure provided in the utility model
Electric cantilever beam is the assembling of existing equipment, therefore, and concrete model and specification are not repeated further.
Operation principle of the present utility model：
In the process of moving, wheel by the uneven excitation in ground due to that can be produced vibration, by piezoelectric cantilever cloth for vehicle
Put in wheel, its own it is vibrated excitation and produce vibration, the vibrational energy of wheel can be converted into electric energy supply intelligence
The sensor of energy inside tires is used.Piezoelectric cantilever vibration of beam is bigger, and the energy of conversion is more, therefore, if ensureing, piezoelectricity hangs
Arm beam can resonate under each speed can then be converted to more electric energy.However, unsteadiness of wheels frequency is change, work as wheel
When rotating speed is improved, the vibration frequency of wheel is also improved therewith.Radial arrangement by piezoelectric cantilever along simulation wheel hub, it is possible to use
Centrifugal force serves as the axial force of piezoelectric cantilever, so as to improve the intrinsic frequency of piezoelectric cantilever, makes the mould of piezoelectric cantilever
State can dynamic change, vibration with wheel is adapted, realizes under each speed, piezoelectric cantilever can resonate.
When accordingly being tested, the rotating speed drive signal that controller output is determined by operating condition of test makes motor by finger
Determine rotating speed continuously to rotate.Motor synchronizes rotation by shaft coupling and drive shaft driving simulation wheel hub.Simulate wheel hub
Rotate and drive non-contact exciter, laser displacement sensor, force snesor and piezoelectric cantilever mounted thereto around axle center
Rotate.In this way, you can the rotation of simulating vehicle wheel under each speed.
Non-contact exciter can adjust its vertical and horizontal position by several 3rd elongated pores, it is right against pressure
The free end of electric cantilever beam.Non-contact exciter produces the exciting to piezoelectric cantilever of assigned frequency according to working condition requirement
Power, piezoelectric cantilever is influenceed by exciting force and occurs forced vibration.The fixing end of piezoelectric cantilever by second support with
Force snesor is connected firmly, and when piezoelectric cantilever is by centrifugal action, the active force can be gone out by force sensor measuring.
Laser displacement sensor adjusts the free end to piezoelectric cantilever by the second elongated pore.For measuring piezoelectric cantilever
The vibration displacement of beam free end.
Comprehensive analysis piezoelectric cantilever electric energy output, centrifugal force suffered by the piezoelectric cantilever that force sensor measuring is arrived and swash
The piezoelectric cantilever free end travel that Optical displacement sensor is measured, you can judge whether piezoelectric cantilever is operated in resonance shape
State, if realize mode adaptive.Therefore this testing stand can adaptively capture energy device to designed mode and develop
Test.
The beneficial effects of the utility model：
Testing stand described in the utility model uses closed loop servo electric system, and rotating speed precise control can be with accurate simulation
Vehicle wheel rotational speed under each speed.Size is simplified, and reduces rotary inertia, it is possible to achieve quick to start braking, when saving experiment
Between, the power demand to motor is reduced, cost is reduced.Piezoelectric cantilever, power sensing are specially designed on simulation wheel hub
The mounting hole site of device, non-contact exciter and laser displacement sensor, it is possible to achieve the position adjustment to these parts, is improved
The versatility of testing stand.Employ non-contact exciter and vibrational excitation is carried out to piezoelectric cantilever, simplify to piezoelectric cantilever
Beam enters the structure type of row energization.Employ displacement of the laser displacement sensor to piezoelectric cantilever free end to measure, survey
Accuracy of measurement is high, fast response time.The quick exploitation to prisoner's energy device can be realized, can realize that mode becomes with the change of speed
Change, the moment keeps piezoelectric cantilever to be in resonance state, improves the energy conversion efficiency and operation speed of machine scope of prisoner's energy device, increases
Strong practicality.
Brief description of the drawings
Fig. 1 is testing stand overall structure diagram described in the utility model.
Fig. 2 test assembly decomposition texture schematic diagrams for simulation wheel hub described in the utility model and thereon.
Fig. 3 is first support structural representation described in the utility model.
Fig. 4 is second support structural representation described in the utility model.
Fig. 5 is the 3rd supporting structure schematic diagram described in the utility model.
Fig. 6 is the 4th supporting structure schematic diagram described in the utility model.
1st, support body 2, motor 3, drive shaft 4, simulation wheel hub 5, shaft coupling
6th, electric slip ring 7, non-contact exciter 8, laser displacement sensor 9, force snesor
10th, piezoelectric cantilever 11, balancing weight 12, first support 13, the first counter sink
14th, the second counter sink 15, the first elongated pore 16, second support 17, the 3rd counter sink
18th, the 4th counter sink 19, the 3rd support 20, the second elongated pore 21, the 4th support
22nd, the 5th counter sink 23, the 3rd elongated pore 24, the 6th counter sink.
Embodiment
Refer to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6：
The wheel energy harvester testing stand that the utility model is provided includes support body 1, motor 2, drive shaft 3 and mould
Intend wheel hub 4, wherein motor 2, drive shaft 3 and simulation wheel hub 4 be assemblied on support body 1, motor 2 by shaft coupling 5 with
Drive shaft 3 is connected, and electric slip ring 6 is arranged with drive shaft 3, and the rear end of drive shaft 3 is connected with simulation wheel hub 4, and motor 2 leads to
Axle 3 of overdriving drives simulation wheel hub 4 to synchronize on rotation, simulation wheel hub 4 and is equipped with non-contact exciter 7, laser displacement
Sensor 8, force snesor 9 and piezoelectric cantilever 10, non-contact exciter 7, laser displacement sensor 8, force snesor 9 and pressure
The signal wire of electric cantilever beam 10 is connected with the electric wire on the rotor of electric slip ring 6, can be received by the electric wire on the stator of electric slip ring 6
Non-contact exciter 7, laser displacement sensor 8, the signal of force snesor 9 and piezoelectric cantilever 10, realize rotary body signal
Circulation.
Motor 2 is servomotor.
The lower end of simulation wheel hub 4 is also equipped with balancing weight 11, and the position of balancing weight 11 and weight can be adjusted.
Force snesor 9 is arranged on simulation wheel hub 4 by first support 12, and the groove in first support 12 is used to pass power
Sensor 9 carry out it is spacing, using screw by the first counter sink 13 install force snesor 9, pass through first support using bolt and nut
Two the second counter sinks 14 on 12 and the force sensor 9 of two the first elongated pores 15 and simulation wheel hub 4 on simulation wheel hub 4
Connect firmly, the first elongated pore 15 can realize regulation first support 12 vertical installation site, so as to adapt to the pressure of different length
The installation of electric cantilever beam 10 and the centrifugal force size suffered by it, piezoelectric cantilever 10 are arranged on force snesor by second support 16
On 9, the gap in second support 16 is used for two square spiral shells set in the fixing end for clamping piezoelectric cantilever 10, second support 16
Female hole and two the 3rd counter sinks 17 are used to install two pairs of bolts nut, are made by these two pair bolt and nut in second support 16
Gap diminishes, and clamps the fixing end of piezoelectric cantilever 10, and the groove of the lower end of second support 16 is used to limit force snesor 9
Position, is connected firmly second support 16 on force snesor 9 by the 4th counter sink 18 using screw
Laser displacement sensor 8 is arranged on simulation wheel hub 4 by the 3rd support 19, and two holes on the 3rd support 19 are used
In installing laser displacement sensor 8, two square nut grooves are used to fill in square nut, using screw, by simulating the on wheel hub 4
Two elongated pores 20 connect firmly the 3rd support 19 and simulation wheel hub 4, and laser displacement sensor 8 can be adjusted by the second elongated pore 20
Vertical position, so as to adapt to the piezoelectric cantilever 10 of different length, the vibration displacement of the free end of piezoelectric cantilever 10 is carried out
Effective measurement.
Non-contact exciter 7 is arranged on simulation wheel hub 4 by the 4th support 21, and the 4th is passed through using bolt and nut
Several 3rd elongated pores 23 on two the 5th counter sinks 22 and simulation wheel hub 4 on frame 21 realize that the 4th support 21 is taken turns with simulation
Hub 4 is connected firmly, square nut hole that the hole on the 4th support 21 is used to install on non-contact exciter 7, the 4th support 21 and right
6th counter sink 24 in face is used to install a pair of bolts nut, the aperture in hole is diminished, and clamps non-contact exciter 7, simulation
Several 3rd elongated pores 23 on wheel hub 4 can adjust the installation site of non-contact exciter 7 in the horizontal and vertical directions,
Realization carries out reliable and effective vibrational excitation to various sizes of piezoelectric cantilever 10.
Motor 2, non-contact exciter 7, laser displacement sensor 8, the force snesor 9 provided in the utility model
It is the assembling of existing equipment with piezoelectric cantilever 10, therefore, concrete model and specification are not repeated further.
Operation principle of the present utility model：
In the process of moving, wheel by the uneven excitation in ground due to that can be produced vibration, by piezoelectric cantilever 10 for vehicle
Be arranged in wheel, its own it is vibrated excitation and produce vibration, the vibrational energy of wheel can be converted into electric energy supply
Sensor inside intelligent tire is used.The vibration of piezoelectric cantilever 10 is bigger, and the energy of conversion is more, therefore, if ensureing pressure
Electric cantilever beam 10 can resonate under each speed can then be converted to more electric energy.However, unsteadiness of wheels frequency is change,
When vehicle wheel rotational speed is improved, the vibration frequency of wheel is also improved therewith.Radial direction cloth by piezoelectric cantilever 10 along simulation wheel hub 4
Put, it is possible to use centrifugal force serves as the axial force of piezoelectric cantilever 10, so as to improve the intrinsic frequency of piezoelectric cantilever 10, makes
The mode of piezoelectric cantilever 10 can dynamic change, vibration with wheel is adapted, realizes under each speed, piezoelectric cantilever
10 can resonate.
When accordingly being tested, the rotating speed drive signal that is determined by operating condition of test of controller output make motor 2 by
Specified rotating speed is continuously rotated.Motor 2 synchronizes rotation by shaft coupling 5 and the driving simulation wheel hub 4 of drive shaft 3.Simulation
The rotation of wheel hub 4 drives non-contact exciter 7 mounted thereto, laser displacement sensor 8, force snesor 9 and piezoelectricity outstanding
Arm beam 10 is around axis rotation.In this way, you can the rotation of simulating vehicle wheel under each speed.
Non-contact exciter 7 can adjust its vertical and horizontal position by several 3rd elongated pores 23, make it just right
In the free end of piezoelectric cantilever 10.Non-contact exciter 7 is according to working condition requirement generation assigned frequency to piezoelectric cantilever
10 exciting force, piezoelectric cantilever 10 is influenceed by exciting force and occurs forced vibration.The fixing end of piezoelectric cantilever 10 is led to
Cross second support 16 to connect firmly with force snesor 9, when piezoelectric cantilever 10 is by centrifugal action, the active force can pass through power
Sensor 9 is measured.
Laser displacement sensor logical 8 crosses the regulation of the second elongated pore 20 to the free end of piezoelectric cantilever 10.For measuring pressure
The vibration displacement of the electric free end of cantilever beam 10.
The electric energy output of comprehensive analysis piezoelectric cantilever 10, the suffered centrifugation of piezoelectric cantilever 10 that force snesor 9 is measured
The free end travel of piezoelectric cantilever 10 that power and laser displacement sensor 8 are measured, you can whether judge piezoelectric cantilever 10
It is operated in resonance state, if realize mode adaptive.Therefore this testing stand can adaptively capture energy to designed mode
Device develops test.
Claims (6)
1. a kind of wheel energy harvester testing stand, it is characterised in that：Include support body, motor, drive shaft and simulation wheel
Hub, wherein motor, drive shaft and simulation wheel hub are assemblied on support body, and motor is connected by shaft coupling with drive shaft,
Electric slip ring is arranged with drive shaft, the rear end of drive shaft is connected with simulation wheel hub, and motor is driven by drive shaft and simulated
Wheel hub synchronizes and is equipped with non-contact exciter, laser displacement sensor, force snesor and piezoelectricity on rotation, simulation wheel hub
Cantilever beam, non-contact exciter, laser displacement sensor, the signal wire of force snesor and piezoelectric cantilever turn with electric slip ring
Electric wire connection on son, non-contact exciter, laser displacement sensor, power can be received by the electric wire on electric slip ring stator
The signal of sensor and piezoelectric cantilever, realizes the circulation of rotary body signal.
2. a kind of wheel energy harvester testing stand according to claim 1, it is characterised in that：Described motor is
Servomotor.
3. a kind of wheel energy harvester testing stand according to claim 1, it is characterised in that：Described simulation wheel hub
Lower end is also equipped with balancing weight, and the position of balancing weight and weight can be adjusted.
4. a kind of wheel energy harvester testing stand according to claim 1, it is characterised in that：Described force snesor leads to
Cross first support to be arranged on simulation wheel hub, the groove in first support is spacing for carrying out force snesor, logical using screw
Cross the first counter sink and force snesor is installed, two the second counter sinks in first support and simulation wheel hub are passed through using bolt and nut
On two the first elongated pore force sensors and simulation wheel hub connect firmly, the first elongated pore can realize regulation first support
Vertical installation site so that adapt to the piezoelectric cantilever of different length installation and its suffered by centrifugal force size, piezoelectricity hang
Arm beam is arranged on force snesor by second support, and the gap in second support is used for the fixing end for clamping piezoelectric cantilever,
Two set square nut holes and two the 3rd counter sinks are used to install two pairs of bolts nut in second support, pass through these two pair spiral shell
Bolt nut makes the gap in second support diminish, and clamps the fixing end of piezoelectric cantilever, and the groove of second support lower end is used for pair
Force snesor progress is spacing, is connected firmly second support on force snesor by the 4th counter sink using screw.
5. a kind of wheel energy harvester testing stand according to claim 1, it is characterised in that：Described laser displacement is passed
Sensor is arranged on simulation wheel hub by the 3rd support, and two holes on the 3rd support are used to install laser displacement sensor, and two
Individual square nut groove is used to fill in square nut, using screw, makes the 3rd support and simulation by the second elongated pore simulated on wheel hub
Wheel hub is connected firmly, and the vertical position of laser displacement sensor can be adjusted by the second elongated pore, so as to adapt to the pressure of different length
Electric cantilever beam, effective measurement is carried out to the vibration displacement of piezoelectric cantilever free end.
6. a kind of wheel energy harvester testing stand according to claim 1, it is characterised in that：Described is contactless sharp
The device that shakes is arranged on simulation wheel hub by the 4th support, using bolt and nut by two the 5th counter sinks on the 4th support and
Several 3rd elongated pores on simulation wheel hub realize that the 4th support is used to install with simulating connecting firmly for wheel hub, the hole on the 4th support
6th counter sink in square nut hole and opposite on non-contact exciter, the 4th support is used to install a pair of bolts nut, makes
The aperture in hole diminishes, and clamping several 3rd elongated pores on non-contact exciter, simulation wheel hub can adjust contactless sharp
Shake the installation site of device in the horizontal and vertical directions, realize and reliable and effective vibration is carried out to various sizes of piezoelectric cantilever
Excitation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720224029.7U CN206515065U (en) | 2017-03-09 | 2017-03-09 | Wheel energy harvester testing stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720224029.7U CN206515065U (en) | 2017-03-09 | 2017-03-09 | Wheel energy harvester testing stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206515065U true CN206515065U (en) | 2017-09-22 |
Family
ID=59870099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720224029.7U Active CN206515065U (en) | 2017-03-09 | 2017-03-09 | Wheel energy harvester testing stand |
Country Status (1)
| Country | Link |
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| CN (1) | CN206515065U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885989A (en) * | 2017-03-09 | 2017-06-23 | 吉林大学 | The mode self adaptation prisoner for being applied to intelligent tire can device experiment platform |
| CN109655097A (en) * | 2018-12-25 | 2019-04-19 | 西北工业大学 | Multistable energy capture experimental rig in a kind of rotating environment |
| CN113607434A (en) * | 2021-08-04 | 2021-11-05 | 厦门威迪思汽车设计服务有限公司 | Tire dynamic and modal testing device |
-
2017
- 2017-03-09 CN CN201720224029.7U patent/CN206515065U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885989A (en) * | 2017-03-09 | 2017-06-23 | 吉林大学 | The mode self adaptation prisoner for being applied to intelligent tire can device experiment platform |
| CN109655097A (en) * | 2018-12-25 | 2019-04-19 | 西北工业大学 | Multistable energy capture experimental rig in a kind of rotating environment |
| CN113607434A (en) * | 2021-08-04 | 2021-11-05 | 厦门威迪思汽车设计服务有限公司 | Tire dynamic and modal testing device |
| CN113607434B (en) * | 2021-08-04 | 2024-03-01 | 厦门威迪思汽车设计服务有限公司 | Tire dynamic and modal testing apparatus |
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