CN208568128U - The internal rotor chassis dynamometer that permanent magnet synchronous motor directly drives - Google Patents
The internal rotor chassis dynamometer that permanent magnet synchronous motor directly drives Download PDFInfo
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- CN208568128U CN208568128U CN201821077407.4U CN201821077407U CN208568128U CN 208568128 U CN208568128 U CN 208568128U CN 201821077407 U CN201821077407 U CN 201821077407U CN 208568128 U CN208568128 U CN 208568128U
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Abstract
The utility model discloses a kind of internal rotor chassis dynamometer that permanent magnet synchronous motor directly drives, including pedestal, main shaft, encoder, torque dynamometer and turns Grains, and the main shaft is fixedly mounted on the base by bearing；Suo Shu Zhuan Grains is fixed on the main shaft, and the main shaft provides resistance by permanent magnet synchronous motor；The torque dynamometer is used to measure the reaction force that the rotor assembly generates the stator module in the electromagnetic force generated by stator module, and the encoder is used to measure the revolving speed and corner of the main shaft.The utility model provides a kind of compact-sized, and difficulty of processing is low, and control precision is high, and detection data is reliable, good heat dissipation effect and the chassis dynamometer for being particularly suitable for high-power, big torque.
Description
Technical field
The utility model relates to interior turns that automotive inspection equipment technical field more particularly to a kind of permanent magnet synchronous motor are directly driven
Sub- chassis dynamometer.
Background technique
Chassis dynamometer is a kind of room for testing the performances such as vehicle dynamic quality, multi-state discharge index, fuel oil index
Interior bench test equipment, road simulation dynamometer calculate road analogy equation, and use loading device by roller simulated roadway
It is simulated, realizes the accurate simulation to each operating condition of automobile, it can be used for the load debugging of automobile, diagnose automobile in loading condition
The failure of lower appearance；Chassis dynamometer is easy to use, and reliable performance is not influenced by external condition.In the premise for the automobile that do not disintegrate
Under, it can quickly and accurately detect each system of automobile, the service performance of component.Chassis dynamometer both can be used for automobile section
Test is learned, can be used for maintenance conditions.
There are two types of basic structures for current motor-type chassis dynamometer: one is by dynamometer, rotary drum, variable combination flywheel
The big element coaxial connection composition of group three, wherein dynamometer provides resistance to driving wheel of vehicle by rotary drum, absorbs wheel operating and produces
Raw mechanical work, while measuring rotary drum revolving speed and acting on torque on rotary drum.It detects in work, including motor and rotary drum inertia
Flywheel group inertia inside provides inertia force when variable-speed operation, and the vehicle of different inertia is adapted to different flywheels.
Another structure is removal flywheel group, and the inertia of mechanical flywheel group is replaced using the equivalent electric simulation inertia that dynamometer machine generates
Power, instead of the mechanical inertia of flywheel group.
Chinese patent (application number: CN00226144.8；Publication date: 2000.12.27) a kind of chassis dynamometer is disclosed,
Including have calculate, the at the uniform velocity resistance of store function, compensation inertia force, mechanical loss setting apparatus, essence be motor with
Rotary drum is integrated.The rotor of asynchronous machine as dynamometer machine is fixed in rotary drum, and stator is fixed on main shaft, on main shaft
Force snesor is filled between the arm of force and base, motor is measured to the resistance that rotary drum provides by force snesor.Rotary drum two side ends cover
If induced draft plate, cooling wind is introduced using the rotation of rotary drum, does not set cooling blower separately.The chassis dynamometer has compact-sized, system
The advantage that installation cost is low, occupied area is small is made, especially suitable for single driving wheel or more driving wheels are coaxial and wheelspan is small vehicle
, but the detection of big load, high-power special vehicle can not be adapted to, reason is: 1, the dynamometer machine motor stator component is set
In turning the inner cavity Grains, confined space is formd, although realizing from cooling, in high-power, the slow-speed of revolution heavy vehicle sensing chamber
When, it is huge that motor generates heat, and since itself revolving speed is low, by the cooling fin on Zhuan Grains, is unable to complete the heat dissipation drop of motor
Temperature greatly influences the performance of motor；2, asynchronous machine belongs to induction machine, full electrical inertia control accuracy difference；3, detection is big carries
Lotus, high-power special vehicle need biggish torsion load, need the motor stator of large radius, and the motor stator of large radius adds
Work difficulty is big, and higher cost；4, Zhuan Grains is installed on main shaft by bearing, can be to the torque measuring of main shaft in Zhuan Grains rotary course
Amount has an impact, and influences the accuracy of test data；5, in the environment warehouse for detecting vehicle, the heat distributed can be to the temperature of warehouse
Degree has an impact.
Utility model content
The purpose of the utility model is to provide a kind of compact-sized, difficulty of processing is low, and control precision is high, and detection data can
It leans on, good heat dissipation effect and the chassis dynamometer for being particularly suitable for high-power, big torque.
In order to achieve the above purposes, the technical solution adopted by the utility model is:
A kind of internal rotor chassis dynamometer that permanent magnet synchronous motor directly drives, including pedestal, main shaft, encoder, torque measurement
Device is Ji Zhuan Grains, the main shaft are fixedly mounted on the pedestal by bearing；Suo Shu Zhuan Grains is fixed on the main shaft, the main shaft
Resistance is provided by permanent magnet synchronous motor, the permanent magnet synchronous motor includes stator module and rotor assembly；The stator module is solid
Dingan County provides the resistance magnetic field of rotation on the torque dynamometer for the rotor assembly；With described in magnetic property
Rotor assembly is fixedly installed on the main shaft, corresponding with the stator module；The torque dynamometer is described for measuring
The reaction force that rotor assembly generates the stator module in the electromagnetic force generated by stator module, the encoder are used
In the revolving speed and corner that measure the main shaft.
Preferably, the torque dynamometer includes rotating part, stationary part and pressure sensor；The rotating part is rotatably
It is connected in the stationary part；The pressure sensor is placed between one stationary part of rotating part, for incuding the rotation
The opposite torsion with stationary part when portion rotates；The rotating part center is equipped with the through-hole passed through for the main shaft, the stator
Component is fixedly mounted on the rotating part；The stationary part is fixedly mounted on the base；The beneficial effect is that this is especially
Torque dynamometer structure after optimization can directly be bolted with stator module, reduce the volume of equipment, and reduce torsion
Square transmission mechanism, the response speed for the DATA REASONING for being are faster, more accurate.
Preferably, the rotor assembly includes rotor pedestal and several is evenly arranged on the rotor pedestal around spindle axis line
Magnet steel substrate, the rotor pedestal is fixedly mounted on the main shaft；The beneficial effect is that: the rotor pedestal is the magnetic
Base steel this offer one can facilitate the installation of magnet steel substrate, and make motor rotor component and main shaft with the template of precise positioning
Separate machined can be carried out, difficulty of processing is reduced, facilitates and is designed using removable connection type, facilitates replacement, the dimension in later period
Shield.
Preferably, the stator module includes stator base and stator unit, and the stator base is fixedly mounted on institute
It states on main shaft, the stator unit is fixedly mounted in the stator base；The beneficial effect is that: the stator base is institute
It states stator unit and location and installation platform is provided, the groove for being adapted to the stator unit can be equipped on the stator unit, it is convenient fixed
The positioning of subelement, make be equipment assembling process it is easier, moreover it is possible to guarantee installation quality well.
Preferably, the stator unit is made of the stator modules of several fan-shaped structures；The single stator modules packet
The stator winding for including stator core and being wrapped in the stator core；The beneficial effect is that modular design is broken
The technique of conventional stator core integral manufacturing, reduces the difficulty of processing of large radius stator core, principle is by stator core
Be divided into it is several can independent control stator modules, when encoder precisely reads the relative position of rotor and stator, each
Single stator modules generate specific magnetic field under the action of controller, generate to the single magnet steel substrate by its magnetic field same
The electromagnetic force of direction of rotation, 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 modules damage, more allotment of the controller to single stator modules, equipment still can be operated；When reparation, only
Single stator modules are needed to change, it, can not normal work once damage, equipment shut down immediately compared to traditional motor stator
It needs to replace entire stator when making, and repairing.
Preferably, stator base capping structure in a ring, axial line of the stator modules around the stator base
It is evenly arranged on the inner wall of the stator base.
Preferably, the stator base tail end is in uncovered structure；The permanent magnet synchronous motor is covered by protective cover, is coated at
The protective cover in the stator base is fixed on the base, the beneficial effect is that: increase stator module and the external world
Contact area, the circulation of convenient air, be turned up radiating efficiency；The thermal insulation layer is effectively by the temperature of motor and place ring
The isolation of border storehouse, the temperature for preventing the temperature generated in motor operation course from testing environment storehouse have an impact.
Preferably, air inlet and gas outlet are offered on the protective cover, inner wall is equipped with thermal insulation layer；The air inlet and outer
The quenching system in portion connects；The beneficial effect is that: external quenching system introduces, and the heat dissipation for accelerating motor hastens, may make
Motor is in optimal operating temperature for a long time, enhances the reliability of equipment, the heat taken away is discharged directly to ring
Outside the storehouse of border, the influence to environment storehouse temperature is also avoided.
Preferably, the encoder includes the sensing element of code-disc and the induction code-disc, and the code-disc is mounted on main shaft
Or on rotor assembly, the sensing element is mounted on the torque dynamometer or stator module, corresponding with the code-disc；Its
Beneficial effect is: revolving speed of the encoder to main shaft, the corner for efficiently utilizing permanent magnet synchronous motor itself are read out, and are mentioned
The high utilization rate of component, saves cost.
Compared with prior art, the utility model has the beneficial effects that 1, Zhuan Grains to vehicle carry out test job when, by
Permanent magnet synchronous motor directly provides electromagnetic resistance to main shaft, reduces intermediate transmission components, improves the controllability of equipment, and
Precision height is controlled, the accurate fixed of detection data is enhanced；2, motor uses modular design, reduces the processing of motor stator
Difficulty has saved generation cost, especially when producing large radius stator module；3, the design of protective cover is in addition to motor itself
Protective effect outside, be also used to motor and environment storehouse carrying out thermal isolation, the heat generated when preventing motor from working is to environment storehouse
It has an impact；4, the torque dynamometer with motor stator component of unique design are cleverly combined, and are reduced equipment occupation space, are made
It is more compact to obtain device structure.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for the internal rotor chassis dynamometer that permanent magnet synchronous motor directly drives in embodiment one；
Fig. 2 is a kind of structural representation for the internal rotor chassis dynamometer part that permanent magnet synchronous motor directly drives in embodiment one
Figure；
Fig. 3 is the structural schematic diagram of the torque dynamometer；
Fig. 4 is the structural schematic diagram of rotor assembly and stator module in embodiment one；
Fig. 5 is the structural schematic diagram of the protective cover；
Fig. 6 is a kind of internal rotor chassis dynamometer structural schematic diagram that permanent magnet synchronous motor directly drives in embodiment two；
Fig. 7 is a kind of structural representation for the internal rotor chassis dynamometer part that permanent magnet synchronous motor directly drives in embodiment two
Figure；
Fig. 8 is the structural schematic diagram of stator module in embodiment two；
Fig. 9 is a kind of structural schematic diagram for the internal rotor chassis dynamometer that permanent magnet synchronous motor directly drives in embodiment three；
Figure 10 is a kind of structural representation for the internal rotor chassis dynamometer part that permanent magnet synchronous motor directly drives in embodiment three
Figure；
In figure: 1, pedestal；11, bottom plate；12, support column；2, main shaft；3, bearing；4, encoder；41, sensing element；42,
Code-disc；5, protective cover；51, air inlet；52, gas outlet；53, thermal insulation layer；6, stator module；61, stator base；62, stator list
Member；62-1, stator modules；7, key；8, rotor assembly；81, rotor pedestal；82, magnet steel substrate；9, torque dynamometer；91, static
Portion；92, pressure sensor；93, rotating part；93-1, seam allowance；93-2, through-hole；10, Zhuan Grains.
Specific embodiment
Below in conjunction with the attached drawing in the utility model, the technical solution of the utility model is clearly and completely retouched
It states, it is clear that the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.Based on this
Embodiment in utility model, those of ordinary skill in the art under the conditions of not making creative work it is obtained it is all its
Its embodiment, fall within the protection scope of the utility model.
Embodiment one
As shown in Figs. 1-5, a kind of internal rotor chassis dynamometer that permanent magnet synchronous motor directly drives, including pedestal 1, main shaft 2, volume
Code device 4,9 Ji Zhuan Grains 10 of torque dynamometer, the pedestal 1 include bottom plate 11 and the support column 12 that 11 two sides of bottom plate are arranged in
Composition；The main shaft 2 is fixedly mounted between the support column 12 by bearing 3；Suo Shu Zhuan Grains 10 is fixed on the main shaft 2
On, the main shaft 2 provides electromagnetic resistance by permanent magnet synchronous motor come analog mechanical inertia, and the permanent magnet synchronous motor includes stator
Component 6 and rotor assembly 8；The stator module 6 is fixedly mounted on the torque dynamometer 9, is provided for the rotor assembly
The resistance magnetic field of rotation；The rotor assembly 8 with magnetic property is fixedly installed on the main shaft 2, with the stator pack
Part 6 is corresponding；The torque dynamometer 9 is for measuring the rotor assembly 8 in the electromagnetic force generated by stator module 6 pair
The reaction force that the stator module 6 generates, the encoder 4 are used to measure the revolving speed and corner of the main shaft 2.
Preferably, the torque dynamometer 9 includes rotating part 93, stationary part 91 and pressure sensor 92；The rotating part
93 are rotatably connected in the stationary part 91 by bearing；The pressure sensor 92 be placed in the rotating part 93 with it is static
Between portion 91, the opposite torsion with stationary part 91 when for incuding the rotating part 93 rotation；93 center of rotating part is equipped with
For the through-hole 93-2 that the main shaft 2 passes through, the stator module 6 is fixedly mounted on the rotating part 93, the rotation
Portion 93 is equipped with the seam allowance 93-1 for positioning the stator module 6；The stationary part 91 is fixedly mounted on the support column 12
On；The rotor assembly 8 includes rotor pedestal 81 and several magnet steel being evenly arranged on the rotor pedestal 81 around 2 axial line of main shaft
Substrate 82, the rotor pedestal 81 are fixedly mounted on the main shaft 2 by key 7；The stator module 6 includes stator base 61
And stator unit 62, the stator base 61 are fixedly mounted on the rotating part 93, the stator unit 62 is fixedly mounted on
In the stator base 61；Further, the stator unit 62 by several fan-shaped cyclic structures stator modules 62-1 group
At；The single stator modules 62-1 includes stator core and the stator winding that is wrapped in the stator core；It is described fixed
Capping structure, the stator modules 62-1 are evenly arranged on the stator around the axial line of the stator base 61 to sub-base 61 in a ring
In the inner circumferential wall of pedestal 61；Further, 61 tail end of stator base is in uncovered structure；The permanent magnet synchronous motor by
Protective cover 5 covers, and the protective cover 5 being coated in the stator base 61 is fixed on the support column 12；The protection
Air inlet 51 and gas outlet 52 are offered on cover 5, inner wall is equipped with thermal insulation layer 53；The air inlet 51 connects with external quenching system
It connects；The encoder 4 includes the sensing element 41 of code-disc 42 and the induction code-disc 42, and the code-disc 42 is mounted on main shaft,
The sensing element 41 is mounted in the stator base 61, corresponding with the code-disc 42.
When work, vehicle tyre is contacted Yu Zhuan Grains 10, and the tire belt Dong Zhuan Grains 10 for starting rear vehicle rotates, and at this point, turning
Grains 10 is under the stator module 6 of permanent magnet synchronous motor and the electromagnetic force of rotor assembly 8, certainly using full electric inertia simulation technology
Dynamic resistance of simulating vehicle during road driving, and then realize the measurement to vehicle travel process parameters, the volume
Code device 4 is used to detect the revolving speed and corner of main shaft 2, and the stator module 6 generates power to the rotor assembly 8 being fixed on Zhuan Grains 10
While, since power is mutual, so rotor assembly 8 also can generate a reaction force, this reaction force to stator module 6
Pass to 9 data measured of torque dynamometer.
Embodiment two
As shown in figs 6-8, a kind of internal rotor chassis dynamometer that permanent magnet synchronous motor directly drives, including pedestal 1, main shaft 2, volume
Code device 4,9 Ji Zhuan Grains 10 of torque dynamometer, the pedestal 1 include bottom plate 11 and the support column 12 that 11 two sides of bottom plate are arranged in
Composition；The main shaft 2 is fixedly mounted between the support column 12 by bearing 3；Suo Shu Zhuan Grains 10 is fixed on the main shaft 2
On, the main shaft 2 provides electromagnetic resistance by permanent magnet synchronous motor come analog mechanical inertia, and the permanent magnet synchronous motor includes stator
Component 6 and rotor assembly 8；The stator module 6 is fixedly mounted on the torque dynamometer 9, is provided for the rotor assembly
The resistance magnetic field of rotation；The rotor assembly 8 with magnetic property is fixedly installed on the main shaft 2, with the stator pack
Part 6 is corresponding；The torque dynamometer 9 is for measuring the rotor assembly 8 in the electromagnetic force generated by stator module 6 pair
The reaction force that the stator module 6 generates, the encoder 4 are used to measure the revolving speed and corner of the main shaft 2.
Preferably, the torque dynamometer 9 includes rotating part 93, stationary part 91 and pressure sensor 92；The rotating part
93 are rotatably connected in the stationary part 91 by bearing；The pressure sensor 92 be placed in the rotating part 93 with it is static
Between portion 91, the opposite torsion with stationary part 91 when for incuding the rotating part 93 rotation；93 center of rotating part is equipped with
For the through-hole 93-2 that the main shaft 2 passes through, the stator module 6 is fixedly mounted on the rotating part 93, the rotation
Portion 93 is equipped with the seam allowance 93-1 for positioning the stator module 6；The stationary part 91 is fixedly mounted on the support column 12
On；The rotor assembly 8 includes rotor pedestal 81 and several magnet steel being evenly arranged on the rotor pedestal 81 around 2 axial line of main shaft
Substrate 82, the rotor pedestal 81 of disc-shaped structure are bolted on the installation main shaft 2；The stator module 6 wraps
Stator base 61 and stator unit 62 are included, the stator base 61 is fixedly mounted on the rotating part 93, the stator list
Member 62 is fixedly mounted in the stator base 61；Further, the stator unit 62 is by several fan-shaped disk-like structures
Stator modules 62-1 composition；The single stator modules 62-1 includes that stator core and being wrapped in the stator core is determined
Sub- winding；The stator base 61 capping structure in a ring, axial line of the stator modules 62-1 around the stator base 61
It is evenly arranged on the end face of the stator base 61；Further, 61 tail end of stator base is in uncovered structure；The permanent magnetism
Synchronous motor is covered by protective cover 5, and the protective cover 5 being coated in the stator base 61 is fixed on the support column 12
On；Air inlet 51 and gas outlet 52 are offered on the protective cover 5, inner wall is equipped with thermal insulation layer 53；The air inlet 51 and outside
Quenching system connection；The encoder 4 includes the sensing element 41 of code-disc 42 and the induction code-disc 42, and the code-disc 42 is pacified
On main shaft, the sensing element 41 is mounted in the stator base 61, corresponding with the code-disc 42.
When work, vehicle tyre is contacted Yu Zhuan Grains 10, and the tire belt Dong Zhuan Grains 10 for starting rear vehicle rotates, and at this point, turning
Grains 10 is under the stator module 6 of permanent magnet synchronous motor and the electromagnetic force of rotor assembly 8, certainly using full electric inertia simulation technology
Dynamic resistance of simulating vehicle during road driving, and then realize the measurement to vehicle travel process parameters, the volume
Code device 4 is used to detect the revolving speed and corner of main shaft 2, and the stator module 6 generates power to the rotor assembly 8 being fixed on Zhuan Grains 10
While, since power is mutual, so rotor assembly 8 also can generate a reaction force, this reaction force to stator module 6
Pass to 9 data measured of torque dynamometer.
Embodiment three
As shown in figs. 9-10, a kind of internal rotor chassis dynamometer that permanent magnet synchronous motor directly drives, including pedestal 1, main shaft 2,
Encoder 4,9 Ji Zhuan Grains 10 of torque dynamometer, the pedestal 1 include bottom plate 11 and the support column that 11 two sides of bottom plate are arranged in
12 compositions；The main shaft 2 is fixedly mounted between the support column 12 by bearing 3；Suo Shu Zhuan Grains 10 is fixed on the main shaft 2
On, the main shaft 2 provides electromagnetic resistance by permanent magnet synchronous motor come analog mechanical inertia, and the permanent magnet synchronous motor includes stator
Component 6 and rotor assembly 8；The stator module 6 is fixedly mounted on the torque dynamometer 9, is provided for the rotor assembly
The resistance magnetic field of rotation；The rotor assembly 8 with magnetic property is fixedly installed on the main shaft 2, with the stator pack
Part 6 is corresponding；The torque dynamometer 9 is for measuring the rotor assembly 8 in the electromagnetic force generated by stator module 6 pair
The reaction force that the stator module 6 generates, the encoder 4 are used to measure the revolving speed and corner of the main shaft 2.
Preferably, the permanent magnet synchronous motor is covered by protective cover 5, the protection being coated in the stator base 61
Cover 5 is fixed on the support column 12；Air inlet 51 and gas outlet 52 are offered on the protective cover 5, inner wall is equipped with thermal insulation layer
53；The air inlet 51 is connect with external quenching system；The torque dynamometer 9 includes rotating part 93, stationary part 91 and pressure
Force snesor 92；The rotating part 93 is rotatably connected in the stationary part 91 by bearing；The pressure sensor 92
It is placed between the rotating part 93 and stationary part 91, the opposite torsion with stationary part 91 when for incuding the rotating part 93 rotation
Power；93 center of rotating part is equipped with the through-hole 93-2 passed through for the main shaft 2, and the stator module 6 is fixedly mounted
On the rotating part 93, the rotating part 93 is equipped with the seam allowance 93-1 for positioning the stator module 6；The stationary part 91
It is fixedly mounted on the protective cover 5；The rotor assembly 8 includes rotor pedestal 81 and several is evenly arranged on around 2 axial line of main shaft
Magnet steel substrate 82 on the rotor pedestal 81, the rotor pedestal 81 of disc-shaped structure are bolted the installation master
On axis 2；The stator module 6 includes stator base 61 and stator unit 62, and the stator base 61 is fixedly mounted on described
On rotating part 93, the stator unit 62 is fixedly mounted in the stator base 61；Further, the stator unit 62 by
The stator modules 62-1 of several fan-shaped disk-like structures is formed；The single stator modules 62-1 includes stator core and winding
Stator winding in the stator core；The stator base 61 capping structure in a ring, the stator modules 62-1 is around institute
The axial line for stating stator base 61 is evenly arranged on the end face of the stator base 61；Further, 61 tail of stator base
End is in uncovered structure；The encoder 4 includes the sensing element 41 of code-disc 42 and the induction code-disc 42, and the code-disc 42 is installed
On main shaft, the sensing element 41 is mounted on the torque dynamometer 9, corresponding with the code-disc 42.
When work, vehicle tyre is contacted Yu Zhuan Grains 10, and the tire belt Dong Zhuan Grains 10 for starting rear vehicle rotates, and at this point, turning
Grains 10 is under the stator module 6 of permanent magnet synchronous motor and the electromagnetic force of rotor assembly 8, certainly using full electric inertia simulation technology
Dynamic resistance of simulating vehicle during road driving, and then realize the measurement to vehicle travel process parameters, the volume
Code device 4 is used to detect the revolving speed and corner of main shaft 2, and the stator module 6 generates power to the rotor assembly 8 being fixed on Zhuan Grains 10
While, since power is mutual, so rotor assembly 8 also can generate a reaction force, this reaction force to stator module 6
Pass to 9 data measured of torque dynamometer.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (10)
1. a kind of internal rotor chassis dynamometer that permanent magnet synchronous motor directly drives, including pedestal, main shaft, encoder, torque dynamometer
And turning Grains, the main shaft is fixedly mounted on the base by bearing；Suo Shu Zhuan Grains is fixed on the main shaft, and feature exists
In the main shaft provides resistance by permanent magnet synchronous motor, and the permanent magnet synchronous motor includes stator module and rotor assembly；It is described
Stator module is fixedly mounted on the torque dynamometer, provides the resistance magnetic field of rotation for the rotor assembly；With permanent magnetism
The rotor assembly of characteristic is fixedly installed on the main shaft, corresponding with the stator module；The torque dynamometer is used
The reaction force that the stator module is generated when measuring the rotor assembly in the electromagnetic force generated by stator module；Institute
Encoder is stated for measuring the revolving speed and corner of the main shaft.
2. the internal rotor chassis dynamometer that a kind of permanent magnet synchronous motor according to claim 1 directly drives, which is characterized in that institute
Stating torque dynamometer includes rotating part, stationary part and pressure sensor；The rotating part is rotatably connected to the stationary part
On；The pressure sensor is placed between the rotating part and stationary part, when for incuding rotating part rotation it is opposite with it is quiet
The torsion of stop；The rotating part center, which is equipped with, is used for the through-hole that the main shaft passes through, described in the stator module fixed installation
On rotating part；The stationary part is fixedly mounted on the base.
3. the internal rotor chassis dynamometer that a kind of permanent magnet synchronous motor according to claim 2 directly drives, which is characterized in that institute
Rotating part is stated equipped with the seam allowance for positioning the stator module.
4. the internal rotor chassis dynamometer that a kind of permanent magnet synchronous motor according to claim 1 directly drives, which is characterized in that institute
Stating rotor assembly includes rotor pedestal and several magnet steel substrates being evenly arranged on the rotor pedestal around spindle axis line, and described turn
Sub-base is fixedly mounted on the main shaft.
5. the internal rotor chassis dynamometer that a kind of permanent magnet synchronous motor according to claim 2 directly drives, which is characterized in that institute
Stating stator module includes stator base and stator unit, and the stator base is fixedly mounted on the rotating part, described fixed
Subelement is fixedly mounted in the stator base.
6. the internal rotor chassis dynamometer that a kind of permanent magnet synchronous motor according to claim 5 directly drives, which is characterized in that institute
Stator unit is stated to be made of the stator modules of several fan-shaped structures；The single stator modules include stator core and winding
Stator winding in the stator core.
7. the internal rotor chassis dynamometer that a kind of permanent magnet synchronous motor according to claim 6 directly drives, which is characterized in that institute
Stator base capping structure in a ring is stated, the stator modules are evenly arranged on the stator base around the axial line of the stator base
Inner wall on.
8. the internal rotor chassis dynamometer that a kind of permanent magnet synchronous motor according to claim 5 or 6 directly drives, feature exist
In the stator base tail end is in uncovered structure；The permanent magnet synchronous motor is covered by protective cover, is coated at the stator base
On the protective cover it is fixed on the base.
9. the internal rotor chassis dynamometer that a kind of permanent magnet synchronous motor according to claim 8 directly drives, which is characterized in that institute
It states and offers air inlet and gas outlet on protective cover, inner wall is equipped with thermal insulation layer；The air inlet is connect with external quenching system.
10. the internal rotor chassis dynamometer that a kind of permanent magnet synchronous motor according to claim 1 directly drives, which is characterized in that
The encoder includes the sensing element of code-disc and the induction code-disc, and the code-disc is mounted on main shaft or rotor assembly, institute
Sensing element is stated to be mounted on the torque dynamometer or stator module, it is corresponding with the code-disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821077407.4U CN208568128U (en) | 2018-07-06 | 2018-07-06 | The internal rotor chassis dynamometer that permanent magnet synchronous motor directly drives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821077407.4U CN208568128U (en) | 2018-07-06 | 2018-07-06 | The internal rotor chassis dynamometer that permanent magnet synchronous motor directly drives |
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| Publication Number | Publication Date |
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| CN208568128U true CN208568128U (en) | 2019-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821077407.4U Active CN208568128U (en) | 2018-07-06 | 2018-07-06 | The internal rotor chassis dynamometer that permanent magnet synchronous motor directly drives |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663149A (en) * | 2018-07-06 | 2018-10-16 | 湖北环电磁装备工程技术有限公司 | The internal rotor chassis dynamometer that permanent magnet synchronous motor directly drives |
| CN117607689A (en) * | 2024-01-22 | 2024-02-27 | 天津通广集团专用设备有限公司 | Motor rotor power-up detection device |
-
2018
- 2018-07-06 CN CN201821077407.4U patent/CN208568128U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663149A (en) * | 2018-07-06 | 2018-10-16 | 湖北环电磁装备工程技术有限公司 | The internal rotor chassis dynamometer that permanent magnet synchronous motor directly drives |
| CN108663149B (en) * | 2018-07-06 | 2023-12-19 | 湖北环一电磁装备工程技术有限公司 | Inner rotor chassis dynamometer directly driven by permanent magnet synchronous motor |
| CN117607689A (en) * | 2024-01-22 | 2024-02-27 | 天津通广集团专用设备有限公司 | Motor rotor power-up detection device |
| CN117607689B (en) * | 2024-01-22 | 2024-04-09 | 天津通广集团专用设备有限公司 | Motor rotor power-up detection device |
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