CN108692961A - The chassis dynamometer of permanent magnet synchronous motor driving - Google Patents
The chassis dynamometer of permanent magnet synchronous motor driving Download PDFInfo
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- CN108692961A CN108692961A CN201810735692.2A CN201810735692A CN108692961A CN 108692961 A CN108692961 A CN 108692961A CN 201810735692 A CN201810735692 A CN 201810735692A CN 108692961 A CN108692961 A CN 108692961A
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- dynamometer
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- permanent magnet
- synchronous motor
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 49
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 51
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 230000003028 elevating effect Effects 0.000 claims abstract description 26
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 description 19
- 230000001681 protective effect Effects 0.000 description 11
- 230000008901 benefit Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0095—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring work or mechanical power
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Linear Motors (AREA)
Abstract
The present invention discloses a kind of chassis dynamometer of permanent magnet synchronous motor driving, which is characterized in that including dynamometer, pedestal, the sliding rail being arranged on the pedestal, delivery device, elevating mechanism and at least one mounting base being slidably mounted on the sliding rail;The dynamometer is to be at least two, works independently from each other, is driven by permanent magnet synchronous motor, is controlled using full electrical inertia system;Every two dynamometers are mounted in the same mounting base;The delivery device is for pushing the mounting base to be moved along the sliding rail;The elevating mechanism is for adjusting height of the dynamometer away from ground.The each wheel of vehicle can individually be tested the object of the present invention is to provide a kind of, and simple in structure, the adjustable chassis dynamometer of wheelbase.
Description
Technical field
The present invention relates to the Chassis dynamometers that automotive inspection equipment technical field more particularly to a kind of permanent magnet synchronous motor drive
Testing stand.
Background technology
Chassis ergograph is a kind of room being used for testing the performances such as vehicle dynamic quality, multi-state discharge index, fuel oil index
Interior bench test equipment, Chassis Dynamometer calculate road analogy equation, loading device are used in combination by roller simulated roadway
It is simulated, realizes the accurate simulation to each operating mode of automobile, it can be used for the load debugging of automobile, and diagnosis automobile is in loading condition
The failure of lower appearance;Its group together with five gas analyzer, transmission-type smoke meter, engine tachometer and computer automatic control system
At an Integrated Measurement System to measure the motor vehicle exhaust emission under different operating modes, chassis ergograph is easy to use, dependable performance
It is not influenced by external condition.Under the premise of not disintegrating automobile, each system of automobile, component can be quickly and accurately detected
Performance.Chassis ergograph both can be used for automobile scientific experimentation, can be used for maintenance conditions.
With the continuous development of automotive engineering, full-time four-wheel drive driving skills art develops with surprising rapidity, and 4-wheel driven car is gradually got over
Like come more common people, chassis dynamometer generally applies to the detection of single drive shaft automobile at present, is increasingly enhanced to meet
4-wheel driven car testing requirements, it is necessary to invent a kind of full-time four-wheel drive car test measurement equipment;And in order to adapt to different automobile types, reply is different
Axletree is away from the wheelbase needs of measurement of power machine cylinder are accomplished can adjust, to improve the applicability of testing stand.
Chinese patent (application number:CN201621234403.3;Publication date:2017.09.26) disclose a kind of new energy vapour
Vehicle dynamometer test platform, including table base, fixed rotary drum mechanism, mobile rotary drum mechanism, a pair of parallel guide rail and leading screw pass
Moving axis, fixed rotary drum mechanism are fixedly mounted on table base, and a pair of parallel guide rail is fixedly mounted on the upper of table base
Face, lead screw transmission axis are fixedly mounted below table base, and mobile rotary drum mechanism is passed by a pair of parallel guide rail and leading screw
Moving axis is mounted on table base, and lead screw transmission axis both ends are both provided with nut seat.But the technical solution cannot achieve to complete
When each wheel of 4 wheel driven wheel test.
Chinese patent (application number:CN201310450825.9;Publication date:2013.12.25) disclose a kind of multiple-axle vehicle
Multiaxis is away from chassis dynamometer guiding mechanism and its bootstrap technique.In the multiple-axle vehicle multiaxis away from chassis dynamometer guiding mechanism:
First transfer case connects the first transmission shaft, first transmission No. three units of axis connection, the first transfer case and No. four machines by connector
Group by the 4th transmission axis connection, No.1, No. two units by third be driven axis connection, No. two, No. three units pass through second pass
Moving axis connect, No. four, No. five units pass through the 5th transmission axis connection;For all units all above guide rail, all units can be along
Guide rail moves laterally;No.1 is connected between No. six units by the first to the 5th turbine and worm system, control system control
First to the 5th turbine and worm systems force No.1 is doing transverse movement to No. six units in guide rail.The technical solution can carry out bottom
Disk measurement of power guides, moreover it is possible to which leading axle carries out Chassis dynamometer away from vehicle, mainly for the vehicle for possessing multiaxis, but to full-time four-wheel drive
Each wheel also can not be tested accurately, and mechanism is complicated.
Invention content
The each wheel of vehicle can individually be tested the object of the present invention is to provide a kind of, and simple in structure, wheelbase can
The chassis dynamometer of adjustment.
To achieve the above object, the technical solution adopted by the present invention is:
A kind of chassis dynamometer of permanent magnet synchronous motor driving, including dynamometer, pedestal, be arranged on the pedestal
Sliding rail, delivery device, elevating mechanism and at least one mounting base being slidably mounted on the sliding rail;The dynamometer is extremely
It is less two, works independently from each other, driven by permanent magnet synchronous motor, is controlled using full electrical inertia system;Every two measurement of powers
Device is mounted in the same mounting base;The delivery device is for pushing the mounting base to be moved along the sliding rail;It is described
Elevating mechanism is for adjusting height of the dynamometer away from ground.
Preferably, the delivery device includes screw motor, screw rod, locating piece and the thrust in the mounting base
Block, the thrust block pad, which is equipped with, is adapted to the screw flight hole, and the screw rod, which is rotatably connected at, is fixed on the pedestal
On locating piece in;The screw motor being connect with the screw rod is fixedly mounted on the pedestal;Advantage is:
The delivery device is simple in structure, at low cost, and the screw motor uses servo-control system, can precisely adjust mounting base
Displacement.Further, the mounting base is equipped with range sensor, for detecting the distance between adjacent two mounting base,
The range sensor is connect with controller, and according to the inductive signal of sensor, the controller sends out instruction control pusher
The screw motor of structure operates, until designated position.
Preferably, the dynamometer includes pedestal, main shaft, encoder, torque dynamometer Ji Zhuan Grains, the main shaft pass through axis
Hold fixed installation on the base;Suo Shu Zhuan Grains are fixed on the main shaft, which is characterized in that the main shaft is by permanent-magnet synchronous
Motor provides resistance, and the permanent magnet synchronous motor includes stator module and rotor assembly;The stator module is fixedly mounted on institute
It states on torque dynamometer, the resistance magnetic field of rotation is provided for the rotor assembly;The rotor assembly with magnetic property is solid
Dingan County is loaded on the main shaft, corresponding with the stator module;The torque dynamometer exists for measuring the rotor assembly
The reaction force generated to the stator module when electromagnetic force generated by stator module, the encoder are described for measuring
The rotating speed and corner of main shaft;Advantage is:The dynamometer is compact-sized, and occupancy is small, admirably solves
Two dynamometers are being mounted side by side on the limited pedestal in space and the problem of detection measures width need to be met so that testing stand pair four
The embodiment that each wheel is individually tested of driving becomes realization.
It is further preferred that the rotor assembly includes rotor pedestal and several is distributed on the rotor around spindle axis line
Magnet steel substrate on pedestal, the rotor pedestal are fixedly mounted on the main shaft;Advantage is:The rotor pedestal is
The magnet steel substrate, which provides one, to facilitate the installation of magnet steel substrate, and make motor rotor component with the template of precise positioning
Separate machined can be carried out with main shaft, reduces difficulty of processing, facilitates and is designed using removable connection type, facilitate the later stage more
It changes, safeguard.
Preferably, the stator module includes stator base and stator unit, and the stator base is fixedly mounted on institute
It states on rotating part, the stator unit is fixedly mounted in the stator base;Advantage is:The stator base is
The stator unit provides positioning upper mounting plate, and the groove for being adapted to the stator unit can be equipped on the stator unit, convenient
The positioning of stator unit, make be equipment assembling process it is easier, moreover it is possible to ensure installation quality well.
Preferably, the stator unit is made of several stator modules;The single stator modules include stator core
And it is wrapped in the stator winding in the stator core;Advantage is that traditional stator iron has been broken in modular design
The technique of heart integral manufacturing, reduces the difficulty of processing of large radius stator core, principle be by stator core be divided into it is several can be only
The stator modules of vertical control, the relative position of rotor and stator is precisely read in encoder, each single stator mould
Block generates specific magnetic field under the action of controller, and the electricity with direction of rotation is generated to the single magnet steel substrate by its magnetic field
Magnetic force, common combination forms the electromagnetic force of a rotation, and then provides simulated resistance or the moment of inertia Wei Zhuan Grains, if single stator
The allotment of module damage, more controller to single stator modules, equipment still can operate;When reparation, only need to change single
Stator modules compare traditional motor stator, once damage, equipment shut down, can not work normally immediately, and are needed when reparation
Entire stator is replaced.
Preferably, the mounting base includes lower support base and upper mounting plate;The elevating mechanism is hydraulic push rod, installation
Between the lower support base and upper mounting plate, the upper mounting plate is equipped with guide rod, and the lower support base is equipped with adaptation
The guide pad of the guide rod;Advantage is:When vehicle is tested, usually carried out in environment storehouse, sometimes ring
The temperature in border storehouse to subzero between 60 degrees Celsius, when not working, is needed dynamometer through lifting body at 80 degrees Celsius
It is recycled to closed bin to be protected, prevents each parts of dynamometer from damaging in harsh environment;Using the company of hinged floating
Mode is connect, lifting body can be utilized to realize the test of different road conditions.
It is further preferred that the hydraulic push rod is equipped with the pressure sensor for incuding carried weight of object;Its
Advantageous effect is:The controller that the testing stand is connected with, the pressure sensor and elevating mechanism connect with controller
It connects, before vehicle testing, each wheel load capacity that pressure sensor senses passes to controller, according to data feedback,
Controller sends out instruction to elevating mechanism landing, adjusts the height of dynamometer, the bearing capacity of every dynamometer is made to automatically achieve
Balance, reaches optimal test condition, makes test data more accurate.
Preferably, the mounting base is divided into mounting base one and mounting base two, is arranged parallel to;The mounting base one and base
Seat is fixedly connected, and the mounting base two is slidably mounted on by the sliding block that lower part is equipped on the sliding rail;The dynamometer is four
Platform, wherein two dynamometers are mounted in mounting base one, in addition two dynamometers are mounted in mounting base two.
It is further preferred that being equipped with heat shield outside the synchronous motor and screw motor, the heat shield is equipped with logical
Air holes, the ventilation hole are connect with cooling system;Advantage is, heat generating components is carried out thermal isolation, prevents equipment certainly
The heat of body influences the temperature in environment storehouse, also motor is protected not influenced by environmental factor, enhances the reliability of dynamometer.
Compared with prior art, the beneficial effects of the invention are as follows:1, four dynamometer machines mutually cooperate, each wheel
There is individual test data so that data are more accurate, and test data is more convincing;2, Zhuan Grains wheelbases can adjust, can be right
Different automobile types are tested, and the applicable performance of equipment is enhanced;3, the design of heat shield makes equipment gather around Packed heat dissipation system
System, reduces influence of the equipment to environment storehouse, also protects equipment not protected from environmental, enhance the reliability of equipment;4,
Single dynamometer is controlled so that device structure is simple, volume using permanent magnet synchronous motor control driving using full electrical inertia system
It is small and exquisite;It is installed convenient for monoblock type.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the chassis dynamometer of permanent magnet synchronous motor driving described in embodiment one;
Fig. 2 is a kind of side view of the chassis dynamometer of permanent magnet synchronous motor driving described in embodiment one;
Fig. 3 is a kind of chassis dynamometer partial sectional view of permanent magnet synchronous motor driving described in embodiment one;
Fig. 4 is the structural schematic diagram of the dynamometer of permanent magnet synchronous motor driving;
Fig. 5 is the structural schematic diagram of the stator module and rotor assembly;
Fig. 6 is the structural schematic diagram of the protective cover;
Fig. 7 is a kind of structural schematic diagram of the chassis dynamometer of permanent magnet synchronous motor driving described in embodiment two;
Fig. 8 is a kind of structural schematic diagram of the chassis dynamometer of permanent magnet synchronous motor driving described in embodiment three;
In figure:1, pedestal;2, dynamometer;3, screw motor;4, shaft coupling;5, elevating mechanism;51, guide pad;52, it is oriented to
Bar;54, pressure sensor;6, mounting base;6a, lower support base;6b, upper mounting plate;61, mounting base one;62, mounting base two;63,
Mounting base three;7, thrust block pad;8, screw rod;9, locating piece;10, sliding rail;21, pedestal;211, bottom plate;212, support column;22, main
Axis;23, bearing;24, encoder;241, sensing element;242, code-disc;25, protective cover;251, air inlet;252, gas outlet;
253, thermal insulation layer;26, stator module;261, stator base;262, stator unit;262-1, stator modules;27, key;28, rotor
Component;281, rotor pedestal;282, magnet steel substrate;29, torque dynamometer;291, stationary part;292, pressure sensor;293, it revolves
Transfer part;210, Zhuan Grains.
Specific implementation mode
Below in conjunction with the attached drawing in the present invention, technical scheme of the present invention is clearly and completely described, it is clear that
Described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the implementation in the present invention
Example, all other embodiment that those of ordinary skill in the art are obtained under the conditions of not making creative work belong to
The scope of protection of the invention.
Embodiment one
As shown in figures 1 to 6, a kind of chassis dynamometer of permanent magnet synchronous motor driving, including dynamometer 2, pedestal 1, cloth
Set sliding rail 10, delivery device, elevating mechanism 5, mounting base 1 and mounting base 2 62 on the pedestal;Wherein mounting base one
61 are fixed on 1 one end of pedestal, and mounting base 2 62 is slidably mounted on by the sliding block that its underpart is equipped on the sliding rail 10;The survey
Work(device 2 includes four, is worked independently from each other, and is driven by permanent magnet synchronous motor, is controlled using full electrical inertia system;Wherein two
The dynamometer 2 is mounted in mounting base 1;The delivery device is for pushing the mounting base 2 62 along the sliding rail 10
It is mobile;The elevating mechanism 5 is for adjusting height of the dynamometer 2 away from ground.
Preferably, the dynamometer 2 includes pedestal 21, main shaft 22, encoder 24,29 Ji Zhuan Grains 210 of torque dynamometer, institute
It includes that bottom plate 211 and the support column 212 being arranged in 211 both sides of the bottom plate form to state pedestal 21;The main shaft 22 passes through bearing
23 are fixedly mounted between the support column 212;Suo Shu Zhuan Grains 210 are fixed on the main shaft 22, and the main shaft 22 is by permanent magnetism
Synchronous motor provides electromagnetic resistance and carrys out analog mechanical inertia, and the permanent magnet synchronous motor includes stator module 26 and rotor assembly
28;The stator module 26 is fixedly mounted on the torque dynamometer 29, and the resistance magnetic of rotation is provided for the rotor assembly
;The rotor assembly 28 with magnetic property is fixedly installed on the main shaft 22, with the stator module 26 to corresponding;
The torque dynamometer 29 is for measuring the rotor assembly 28 in the electromagnetic force generated by stator module 26 to described fixed
The reaction force that sub-component 26 generates, the encoder 24 are used to measure the rotating speed and corner of the main shaft 22;Further preferably
Ground, the torque dynamometer 29 include rotating part 293, stationary part 291 and pressure sensor 292;The rotating part 293 passes through axis
It holds and is rotatably connected in the stationary part 291;The pressure sensor 292 is placed in the rotating part 293 and stationary part 291
Between, for incuding the opposite torsion with stationary part 291 when the rotating part 293 rotates;293 center of the rotating part, which is equipped with, to be used
In the through-hole that the main shaft 22 passes through, the stator module 26 is fixedly mounted on the rotating part 293, the rotating part
293 are equipped with the seam allowance for positioning the stator module 26;The stationary part 291 is fixedly mounted on the support column 212;
The rotor assembly 28 includes rotor pedestal 281 and several magnetic being distributed on around 22 axial line of main shaft on the rotor pedestal 281
Steel substrate 282, the rotor pedestal 281 are fixedly mounted by key 27 on the main shaft 22;The stator module 26 includes fixed
Sub-base 261 and stator unit 262, the stator base 261 are fixedly mounted on the rotating part 293, the stator unit
262 are fixedly mounted in the stator base 261;Further, the stator unit 262 by several in fan-shaped ring structure
Stator modules 262-1 compositions;The single stator modules 262-1 includes stator core and is wrapped in the stator core
Stator winding;The capping structure in a ring of the stator base 261, axis of the stator modules 262-1 around the stator base 261
Heart line is distributed in the inner circumferential wall of the stator base 261;Further, 261 tail end of the stator base is tied in open
Structure;The permanent magnet synchronous motor is covered by protective cover 25, and the protective cover 25 being coated in the stator base 261 is fixed on
On the support column 212;Air inlet 251 and gas outlet 252 are offered on the protective cover 25, inner wall is equipped with thermal insulation layer 253;Institute
Air inlet 251 is stated to connect with external quenching system;The encoder 24 includes code-disc 242 and incudes the sense of the code-disc 242
Element 241, the code-disc 242 is answered to be mounted on main shaft, the sensing element 241 is mounted in the stator base 261, with institute
It is corresponding to state code-disc 242;The mounting base 6 includes lower support base 6a and upper mounting plate 6b;The elevating mechanism 5 is hydraulic thrust
Bar is mounted between the lower support base 6a and upper mounting plate 6b, and the upper mounting plate 6b is equipped with guide rod 52, the lower branch
It supports seat 6a and is equipped with the guide pad 51 for being adapted to the guide rod 52;The elevating mechanism 5 is equipped with for incuding carried object
The pressure sensor 54 of weight;The delivery device includes screw motor 3, screw rod 8, locating piece 9 and is mounted on the mounting base
On thrust block pad 7, the thrust block pad 7 is equipped with the threaded hole for being adapted to the screw rod 8, and the screw rod 8 is rotatably connected at solid
It is scheduled in the locating piece 9 on the pedestal 1;The screw motor being connect with the screw rod 8 is fixedly mounted on the pedestal,
The dynamometer, delivery device and elevating mechanism are electrically connected with the controller, and are controlled by controller coordinate.
When work, testing stand is according to wheel of vehicle wheelbase to be measured, under the control of the controller, sends out control instruction and starts spiral shell
The screw rod 8 of bar motor 3, rotation pushes thrust block pad 7 to move, and then mounting base 2 62 is pushed to be moved along sliding rail, adjusts each dynamometer 2
The distance between, it waits for that vehicle tyre is contacted Yu Zhuan Grains 210, starts the driving wheel drive of each of rear vehicle and respectively contact Zhuan Grains
210 rotations, and at this point, Zhuan Grains 210 under the stator module 26 of permanent magnet synchronous motor and the electromagnetic force of rotor assembly 28, are adopted
With resistance of full electric inertia simulation technology automatic imitation vehicle during road driving, and then realize each to vehicle travel process
The measurement of a parameter, the encoder 24 are used to detect the rotating speed and corner of main shaft 22, the stator module 26 and rotor assembly
28 while Dui Zhuan Grains 210 generate power, since power is mutual, so rotor assembly 28 also can generate one to stator module 26
A reaction force, this reaction force pass to 29 data measured of torque dynamometer.
Embodiment two
As shown in fig. 7, a kind of chassis dynamometer of permanent magnet synchronous motor driving, including dynamometer 2, pedestal 1, arrangement
Sliding rail 10, delivery device, elevating mechanism 5, mounting base 1 on the pedestal and mounting base 2 62;Wherein mounting base 1
And the sliding block that mounting base 2 62 is equipped with by respective lower part is slidably mounted on the sliding rail 10;The dynamometer 2 includes
It four, works independently from each other, is driven by permanent magnet synchronous motor, controlled using full electrical inertia system;Wherein two dynamometers 2
In mounting base 1, in addition two are mounted in mounting base 2 62;The delivery device is for pushing the mounting base 6
It is moved along the sliding rail 10;The elevating mechanism 5 is for adjusting height of the dynamometer 2 away from ground.
Preferably, the dynamometer 2 includes pedestal 21, main shaft 22, encoder 24,29 Ji Zhuan Grains 210 of torque dynamometer, institute
It includes that bottom plate 211 and the support column 212 being arranged in 211 both sides of the bottom plate form to state pedestal 21;The main shaft 22 passes through bearing
23 are fixedly mounted between the support column 212;Suo Shu Zhuan Grains 210 are fixed on the main shaft 22, and the main shaft 22 is by permanent magnetism
Synchronous motor provides electromagnetic resistance and carrys out analog mechanical inertia, and the permanent magnet synchronous motor includes stator module 26 and rotor assembly
28;The stator module 26 is fixedly mounted on the torque dynamometer 29, and the resistance magnetic of rotation is provided for the rotor assembly
;The rotor assembly 28 with magnetic property is fixedly installed on the main shaft 22, with the stator module 26 to corresponding;
The torque dynamometer 29 is for measuring the rotor assembly 28 in the electromagnetic force generated by stator module 26 to described fixed
The reaction force that sub-component 26 generates, the encoder 24 are used to measure the rotating speed and corner of the main shaft 22;Further preferably
Ground, the torque dynamometer 29 include rotating part 293, stationary part 291 and pressure sensor 292;The rotating part 293 passes through axis
It holds and is rotatably connected in the stationary part 291;The pressure sensor 292 is placed in the rotating part 293 and stationary part 291
Between, for incuding the opposite torsion with stationary part 291 when the rotating part 293 rotates;293 center of the rotating part, which is equipped with, to be used
In the through-hole that the main shaft 22 passes through, the stator module 26 is fixedly mounted on the rotating part 293, the rotating part
293 are equipped with the seam allowance for positioning the stator module 26;The stationary part 291 is fixedly mounted on the support column 212;
The rotor assembly 28 includes rotor pedestal 281 and several magnetic being distributed on around 22 axial line of main shaft on the rotor pedestal 281
Steel substrate 282, the rotor pedestal 281 are fixedly mounted by key 27 on the main shaft 22;The stator module 26 includes fixed
Sub-base 261 and stator unit 262, the stator base 261 are fixedly mounted on the rotating part 293, the stator unit
262 are fixedly mounted in the stator base 261;Further, the stator unit 262 by several in fan-shaped ring structure
Stator modules 262-1 compositions;The single stator modules 262-1 includes stator core and is wrapped in the stator core
Stator winding;The capping structure in a ring of the stator base 261, axis of the stator modules 262-1 around the stator base 261
Heart line is distributed in the inner circumferential wall of the stator base 261;Further, 261 tail end of the stator base is tied in open
Structure;The permanent magnet synchronous motor is covered by protective cover 25, and the protective cover 25 being coated in the stator base 261 is fixed on
On the support column 212;Air inlet 251 and gas outlet 252 are offered on the protective cover 25, inner wall is equipped with thermal insulation layer 253;Institute
Air inlet 251 is stated to connect with external quenching system;The encoder 24 includes code-disc 242 and incudes the sense of the code-disc 242
Element 241, the code-disc 242 is answered to be mounted on main shaft, the sensing element 241 is mounted in the stator base 261, with institute
It is corresponding to state code-disc 242;The mounting base 6 includes lower support base 6a and upper mounting plate 6b;The elevating mechanism 5 is hydraulic thrust
Bar is mounted between the lower support base 6a and upper mounting plate 6b, and the upper mounting plate 6b is equipped with guide rod 52, the lower branch
It supports seat 6a and is equipped with the guide pad 51 for being adapted to the guide rod 52;The elevating mechanism 5 is equipped with for incuding carried object
The pressure sensor 54 of weight;The delivery device includes screw motor 3, screw rod 8, locating piece 9 and is mounted on the mounting base
On thrust block pad 7, the thrust block pad 7 is equipped with the threaded hole for being adapted to the screw rod 8, and the screw rod 8 is rotatably connected at solid
It is scheduled in the locating piece 9 on the pedestal 1;The screw motor being connect with the screw rod 8 is fixedly mounted on the pedestal,
The dynamometer, delivery device and elevating mechanism are electrically connected with the controller, and are controlled by controller coordinate.
When work, testing stand is according to wheel of vehicle wheelbase to be measured, under the control of the controller, sends out control instruction and starts spiral shell
The screw rod 8 of bar motor 3, rotation pushes thrust block pad 7 to move, and then mounting base 2 62 is pushed to be moved along sliding rail, adjusts each dynamometer 2
The distance between, it waits for that vehicle tyre is contacted Yu Zhuan Grains 210, starts the driving wheel drive of each of rear vehicle and respectively contact Zhuan Grains
210 rotations, and at this point, Zhuan Grains 210 under the stator module 26 of permanent magnet synchronous motor and the electromagnetic force of rotor assembly 28, are adopted
With resistance of full electric inertia simulation technology automatic imitation vehicle during road driving, and then realize each to vehicle travel process
The measurement of a parameter, the encoder 24 are used to detect the rotating speed and corner of main shaft 22, the stator module 26 and rotor assembly
28 while Dui Zhuan Grains 210 generate power, since power is mutual, so rotor assembly 28 also can generate one to stator module 26
A reaction force, this reaction force pass to 29 data measured of torque dynamometer.
Embodiment three
As shown in figure 8, a kind of chassis dynamometer of permanent magnet synchronous motor driving, including dynamometer 2, pedestal 1, arrangement
Sliding rail 10, delivery device, elevating mechanism 5, mounting base 1, mounting base 2 62 on the pedestal and mounting base 3 63;Its
The sliding block that middle mounting base 1, mounting base 2 62 and mounting base 3 63 are equipped with by respective lower part is slidably mounted on the sliding rail
On 10;The dynamometer 2 includes six, is worked independently from each other, and is driven by permanent magnet synchronous motor, using full electrical inertia system control
System;Wherein two dynamometers 2 are mounted in the same mounting base 1, and two are mounted in mounting base 2 62, remaining
Two are mounted in mounting base 2 62;The delivery device is for pushing the mounting base 6 to be moved along the sliding rail 10;The liter
Descending mechanism 5 is for adjusting height of the dynamometer 2 away from ground.
Preferably, the dynamometer 2 includes pedestal 21, main shaft 22, encoder 24,29 Ji Zhuan Grains 210 of torque dynamometer, institute
It includes that bottom plate 211 and the support column 212 being arranged in 211 both sides of the bottom plate form to state pedestal 21;The main shaft 22 passes through bearing
23 are fixedly mounted between the support column 212;Suo Shu Zhuan Grains 210 are fixed on the main shaft 22, and the main shaft 22 is by permanent magnetism
Synchronous motor provides electromagnetic resistance and carrys out analog mechanical inertia, and the permanent magnet synchronous motor includes stator module 26 and rotor assembly
28;The stator module 26 is fixedly mounted on the torque dynamometer 29, and the resistance magnetic of rotation is provided for the rotor assembly
;The rotor assembly 28 with magnetic property is fixedly installed on the main shaft 22, with the stator module 26 to corresponding;
The torque dynamometer 29 is for measuring the rotor assembly 28 in the electromagnetic force generated by stator module 26 to described fixed
The reaction force that sub-component 26 generates, the encoder 24 are used to measure the rotating speed and corner of the main shaft 22;Further preferably
Ground, the torque dynamometer 29 include rotating part 293, stationary part 291 and pressure sensor 292;The rotating part 293 passes through axis
It holds and is rotatably connected in the stationary part 291;The pressure sensor 292 is placed in the rotating part 293 and stationary part 291
Between, for incuding the opposite torsion with stationary part 291 when the rotating part 293 rotates;293 center of the rotating part, which is equipped with, to be used
In the through-hole that the main shaft 22 passes through, the stator module 26 is fixedly mounted on the rotating part 293, the rotating part
293 are equipped with the seam allowance for positioning the stator module 26;The stationary part 291 is fixedly mounted on the support column 212;
The rotor assembly 28 includes rotor pedestal 281 and several magnetic being distributed on around 22 axial line of main shaft on the rotor pedestal 281
Steel substrate 282, the rotor pedestal 281 are fixedly mounted by key 27 on the main shaft 22;The stator module 26 includes fixed
Sub-base 261 and stator unit 262, the stator base 261 are fixedly mounted on the rotating part 293, the stator unit
262 are fixedly mounted in the stator base 261;Further, the stator unit 262 by several in fan-shaped ring structure
Stator modules 262-1 compositions;The single stator modules 262-1 includes stator core and is wrapped in the stator core
Stator winding;The capping structure in a ring of the stator base 261, axis of the stator modules 262-1 around the stator base 261
Heart line is distributed in the inner circumferential wall of the stator base 261;Further, 261 tail end of the stator base is tied in open
Structure;The permanent magnet synchronous motor is covered by protective cover 25, and the protective cover 25 being coated in the stator base 261 is fixed on
On the support column 212;Air inlet 251 and gas outlet 252 are offered on the protective cover 25, inner wall is equipped with thermal insulation layer 253;Institute
Air inlet 251 is stated to connect with external quenching system;The encoder 24 includes code-disc 242 and incudes the sense of the code-disc 242
Element 241, the code-disc 242 is answered to be mounted on main shaft, the sensing element 241 is mounted in the stator base 261, with institute
It is corresponding to state code-disc 242;The mounting base 6 includes lower support base 6a and upper mounting plate 6b;The elevating mechanism 5 is hydraulic thrust
Bar is mounted between the lower support base 6a and upper mounting plate 6b, and the upper mounting plate 6b is equipped with guide rod 52, the lower branch
It supports seat 6a and is equipped with the guide pad 51 for being adapted to the guide rod 52;The elevating mechanism 5 is equipped with for incuding carried object
The pressure sensor 54 of weight;The delivery device includes screw motor 3, screw rod 8, locating piece 9 and is mounted on the mounting base
On thrust block pad 7, the thrust block pad 7 is equipped with the threaded hole for being adapted to the screw rod 8, and the screw rod 8 is rotatably connected at solid
It is scheduled in the locating piece 9 on the pedestal 1;The screw motor being connect with the screw rod 8 is fixedly mounted on the pedestal,
The dynamometer, delivery device and elevating mechanism are electrically connected with the controller, and are controlled by controller coordinate.
When work, testing stand is according to wheel of vehicle wheelbase to be measured, under the control of the controller, sends out control instruction and starts spiral shell
The screw rod 8 of bar motor 3, rotation pushes thrust block pad 7 to move, and then mounting base 2 62 is pushed to be moved along sliding rail, adjusts each dynamometer 2
The distance between, it waits for that vehicle tyre is contacted Yu Zhuan Grains 210, starts the driving wheel drive of each of rear vehicle and respectively contact Zhuan Grains
210 rotations, and at this point, Zhuan Grains 210 under the stator module 26 of permanent magnet synchronous motor and the electromagnetic force of rotor assembly 28, are adopted
With resistance of full electric inertia simulation technology automatic imitation vehicle during road driving, and then realize each to vehicle travel process
The measurement of a parameter, the encoder 24 are used to detect the rotating speed and corner of main shaft 22, the stator module 26 and rotor assembly
28 while Dui Zhuan Grains 210 generate power, since power is mutual, so rotor assembly 28 also can generate one to stator module 26
A reaction force, this reaction force pass to 29 data measured of torque dynamometer.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of chassis dynamometer of permanent magnet synchronous motor driving, which is characterized in that including dynamometer, pedestal, be arranged in
Sliding rail, delivery device, elevating mechanism on the pedestal and at least one mounting base being slidably mounted on the sliding rail;It is described
Dynamometer is to be at least two, works independently from each other, is driven by permanent magnet synchronous motor, is controlled using full electrical inertia system;Every two
Dynamometer described in platform is mounted in the same mounting base;The delivery device is for pushing the mounting base along the sliding rail
It is mobile;The elevating mechanism is for adjusting height of the dynamometer away from ground.
2. a kind of chassis dynamometer of permanent magnet synchronous motor driving according to claim 1, which is characterized in that described
Delivery device includes screw motor, screw rod, locating piece and the thrust block pad in the mounting base, and the thrust block pad is equipped with
It is adapted to the screw flight hole, the screw rod is fixedly mounted on by bearing in the locating piece being set on the pedestal;Institute
It states screw rod and provides rotary power by screw motor.
3. a kind of chassis dynamometer of permanent magnet synchronous motor driving according to claim 1, which is characterized in that described
Dynamometer includes pedestal, main shaft, encoder, torque dynamometer Ji Zhuan Grains, the main shaft are fixedly mounted on the bottom by bearing
On seat;Suo Shu Zhuan Grains are fixed on the main shaft, and the main shaft provides resistance, the permanent magnet synchronous motor by permanent magnet synchronous motor
Including stator module and rotor assembly;The stator module is fixedly mounted on the torque dynamometer, is the rotor assembly
The resistance magnetic field of rotation is provided;The rotor assembly with magnetic property is fixedly installed on the main shaft, with the stator
Component is corresponding;The torque dynamometer is for measuring the rotor assembly in the electromagnetic force generated by stator module to institute
The reaction force of stator module generation is stated, the encoder is used to measure the rotating speed and corner of the main shaft.
4. a kind of chassis dynamometer of permanent magnet synchronous motor driving according to claim 3, which is characterized in that described
Rotor assembly includes rotor pedestal and several magnet steel substrates being distributed on around spindle axis line on the rotor pedestal, the rotor
Pedestal is fixedly mounted on the main shaft.
5. a kind of chassis dynamometer of permanent magnet synchronous motor driving according to claim 3, which is characterized in that described
Stator module includes stator base and stator unit, and the stator base is fixedly mounted on the rotating part, the stator
Unit is fixedly mounted in the stator base.
6. a kind of chassis dynamometer of permanent magnet synchronous motor driving according to claim 5, which is characterized in that described
Stator unit is made of several stator modules;The single stator modules include stator core and are wrapped in the stator core
On stator winding.
7. a kind of chassis dynamometer of permanent magnet synchronous motor driving according to claim 3, which is characterized in that described
Mounting base includes lower support base and upper mounting plate;The elevating mechanism be hydraulic push rod, be mounted on the lower support base with it is upper
Between mounting plate, the upper mounting plate is equipped with guide rod, and the lower support base is equipped with the guide pad for being adapted to the guide rod.
8. a kind of chassis dynamometer of permanent magnet synchronous motor driving according to claim 7, which is characterized in that described
Elevating mechanism is equipped with the pressure sensor for incuding carried weight of object.
9. a kind of chassis dynamometer of permanent magnet synchronous motor driving according to claim 1, which is characterized in that described
Mounting base is divided into mounting base one and mounting base two, is arranged parallel to;The mounting base one is fixedly connected with pedestal, the installation
Seat two is slidably mounted on by the sliding block that lower part is equipped on the sliding rail;The dynamometer is four, wherein two measurement of powers
Device is mounted in mounting base one, and in addition two dynamometers are mounted in mounting base two.
10. a kind of chassis dynamometer of permanent magnet synchronous motor driving according to claim 2 and 3, which is characterized in that
Be cased with heat shield outside the permanent magnet synchronous motor and screw motor, the heat shield is equipped with ventilation hole, the ventilation hole with it is outer
Portion's cooling system connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810735692.2A CN108692961B (en) | 2018-07-06 | 2018-07-06 | Chassis dynamometer test bed driven by permanent magnet synchronous motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810735692.2A CN108692961B (en) | 2018-07-06 | 2018-07-06 | Chassis dynamometer test bed driven by permanent magnet synchronous motor |
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| CN108692961B CN108692961B (en) | 2024-02-13 |
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