CN109828206B - Motor fixing method and device for electric automobile hub motor test - Google Patents
Motor fixing method and device for electric automobile hub motor test Download PDFInfo
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- CN109828206B CN109828206B CN201910208466.3A CN201910208466A CN109828206B CN 109828206 B CN109828206 B CN 109828206B CN 201910208466 A CN201910208466 A CN 201910208466A CN 109828206 B CN109828206 B CN 109828206B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F7/00—Regulating magnetic variables
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
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Abstract
The invention provides a motor fixing method for testing an electric automobile hub motor, which is characterized by comprising the following steps of: the hub motor rotor is horizontally arranged and is coaxially connected with the traction motor center shaft; magnetic seats are distributed on the outer sides of the fixed shafts of the hub motors in a plurality of directions; the magnetic force is applied to the fixed shaft of the wheel hub motor through the magnetic seat so as to enable the fixed shaft of the wheel hub motor to suspend and be horizontally fixed; in the process of testing the hub motor, detecting the horizontal condition of the hub motor; when the angle deviation of the hub motor from the horizontal angle is detected, the magnetic force of the magnetic seat is adjusted to adjust the magnetic force applied to the fixed shaft of the hub motor in all directions, so that the hub motor is kept horizontal in the testing process. The method can avoid deviation of the levelness of the hub motor in the testing process. The invention also provides a motor fixing device which can realize the method and avoid deviation of the levelness of the hub motor in the testing process.
Description
Technical Field
The invention relates to the technical field of motor testing, in particular to a motor fixing method and device for testing an electric automobile hub motor.
Background
In the technical field of electric automobiles, an in-wheel motor is one of common motors for driving wheels to run; in order to detect the performance of the hub motor, a dynamometer is often used for measuring the torque output on the motor shaft of the hub, and the rotational speed is combined to determine performance parameters such as power.
In the testing process of the dynamometer, the hub motor is required to be coaxial with the central shaft of the traction motor all the time, so that accurate motor performance parameters can be obtained. Generally, the fixed shaft of the hub motor is coaxially arranged with the rotor, and the central shaft of the traction motor is horizontally arranged; the hub motor rotor is coaxially connected with the traction motor center shaft, so that the hub motor fixed shaft and the rotor are coaxial with the traction motor center shaft in a static state. In an ideal state, the levelness of the hub motor is unchanged after the hub motor is fixed; but in electric automobile in-wheel motor be unilateral axle construction, because receive air helping hand, gravity and self rotatory centrifugal force effect when in the test process, in-wheel motor's levelness can receive the influence, therefore influence the rotational speed and the accuracy of torque test of motor to lead to motor performance parameter test inaccuracy. Therefore, there is a need for improvements in the method and apparatus for securing a wheel hub motor that will always remain level and coaxial with the traction motor during testing.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention aims to provide a motor fixing method which is used for testing an electric automobile hub motor, can avoid deviation of the levelness of the hub motor in the testing process, and can ensure that a fixed shaft and a rotor of the hub motor are always kept horizontal in the testing process and are coaxial with a traction motor. The invention further aims to provide a motor fixing device which can realize the method, avoid deviation of levelness of the hub motor in the testing process, ensure that the fixed shaft and the rotor of the hub motor are always kept horizontal in the testing process and are coaxial with the traction motor.
In order to achieve the above purpose, the invention is realized by the following technical scheme: a motor fixing method for testing an electric automobile hub motor is characterized by comprising the following steps of: the hub motor rotor is horizontally arranged and is coaxially connected with the traction motor center shaft; magnetic seats are distributed on the outer sides of the fixed shafts of the hub motors in a plurality of directions; the magnetic force is applied to the fixed shaft of the wheel hub motor through the magnetic seat so as to enable the fixed shaft of the wheel hub motor to suspend and be horizontally fixed; in the process of testing the hub motor, detecting the horizontal condition of the hub motor; when the angle deviation of the hub motor from the horizontal angle is detected, the magnetic force of the magnetic seat is adjusted to adjust the magnetic force applied to the fixed shaft of the hub motor in all directions, so that the hub motor is kept horizontal in the testing process.
Because the fixed shaft of the hub motor and the rotor are coaxially arranged, the central shaft of the traction motor is horizontally arranged; therefore, in a static state, the rotor of the hub motor is coaxially connected with the central shaft of the traction motor, so that the fixed shaft and the rotor of the hub motor are coaxial with the central shaft of the traction motor. The method of the invention applies magnetic force to the fixed shaft of the wheel hub motor in a plurality of directions to suspend the fixed shaft of the wheel hub motor, and the fixed shaft of the wheel hub motor is kept horizontal by adjusting the magnitude of the magnetic force in each direction in the test process; the phenomenon that levelness is deviated due to the fact that the hub motor is subjected to the actions of air assistance, gravity and self-rotating centrifugal force in the rotation process of the hub motor is avoided, the fixed shaft and the rotor of the hub motor are ensured to be always kept horizontal and coaxial with the traction motor in the test process, and therefore accurate hub motor performance test parameters are obtained.
Preferably, the hub motor rotor is horizontally arranged and is coaxially connected with the traction motor center shaft; magnetic seats are distributed on the outer sides of the fixed shafts of the hub motors in a plurality of directions; the magnetic force is applied to the fixed shaft of the wheel hub motor through the magnetic seat so as to enable the fixed shaft of the wheel hub motor to suspend and horizontally fix, which means that:
firstly, fixing and adjusting a hub motor rotor to enable the hub motor rotor to be coaxially connected with a traction motor center shaft which is horizontally arranged; then pushing the assembly provided with the magnetic seat to the hub motor until the assembly is sleeved on the fixed shaft of the hub motor; and then detecting the levelness of the fixed shaft of the hub motor and adjusting the magnetic force of the magnetic seat until the fixed shaft of the hub motor is horizontally arranged. The mode can quickly realize that the fixed shaft and the rotor of the hub motor are horizontally arranged and coaxial with the central shaft of the traction motor in a static state.
The motor fixing device for the motor fixing method for testing the electric automobile hub motor is characterized in that: comprising the following steps:
the horizontal detection assembly is used for detecting the fixed shaft horizontal condition of the hub motor;
a rotor connection assembly for fixing a rotor of the in-wheel motor;
the fixed shaft fixing component is used for applying magnetic force to the fixed shaft of the wheel hub motor in a plurality of directions to realize suspension and fixation of the fixed shaft of the wheel hub motor, and adjusting the magnitude of the magnetic force applied to the fixed shaft of the wheel hub motor in all directions according to the detected horizontal condition of the fixed shaft of the wheel hub motor so as to keep the fixed shaft of the wheel hub motor horizontally fixed in the test process;
the fixed shaft fixing assembly comprises a base and a shell arranged on the base; one side of the shell, which is close to the rotor connecting assembly, is provided with an accommodating cavity for accommodating a fixed shaft of the hub motor; an adjusting gap is reserved between the fixed shaft of the hub motor and the cavity wall of the accommodating cavity; a plurality of magnetic seats are arranged in the shell around the circumference; the circumference is positioned outside the accommodating cavity; each magnetic seat is respectively connected with an adjusting mechanism to realize the magnetic force adjustment of the magnetic seat.
Because the fixed shaft of the hub motor and the rotor are coaxially arranged, the central shaft of the traction motor is horizontally arranged; therefore, in a static state, the rotor of the hub motor is coaxially connected with the central shaft of the traction motor, so that the fixed shaft and the rotor of the hub motor are coaxial with the central shaft of the traction motor. The device applies magnetic force to the fixed shaft of the wheel hub motor in a plurality of directions to suspend the fixed shaft of the wheel hub motor, detects the horizontal condition of the fixed shaft of the wheel hub motor in the test process and keeps the fixed shaft of the wheel hub motor horizontal by adjusting the magnetic force in all directions; the phenomenon that levelness is deviated due to the fact that the hub motor is subjected to the actions of air assistance, gravity and self-rotating centrifugal force in the rotation process of the hub motor is avoided, the fixed shaft and the rotor of the hub motor are ensured to be always kept horizontal and coaxial with the traction motor in the test process, and therefore accurate hub motor performance parameters are obtained.
Preferably, each magnetic mount comprises a permanent magnet and a magnetizer; the magnetizers are symmetrically arranged at two sides of a straight line where the circumference radius is; the inner sides of the magnetizers at the two sides are provided with arc-shaped cavities; soft magnets are respectively arranged on the cavity walls of the arc-shaped cavities at the two sides, and the inner sides of the soft magnets at the two sides jointly form a rotating cavity; the permanent magnet is rotatably arranged in the rotating cavity, and the rotating center of the permanent magnet is positioned on a straight line where the circumference radius is positioned; a non-magnetizer is arranged between the magnetizers at two sides, and the non-magnetizer extends to the space between the soft magnets; the permanent magnet is connected with the adjusting mechanism to realize the magnetic force adjustment of the magnetic seat. The arrangement can realize that the magnetic force seat applies magnetic force to the fixed shaft of the hub motor in all directions and can realize magnetic force adjustment.
Preferably, the permanent magnet is connected with an adjusting mechanism to realize the adjustment of the magnetic force of the magnetic seat, which means that: the adjusting mechanism comprises a rotating motor and a magnet bracket connected with the permanent magnet, and the magnet bracket is connected with the rotating motor to drive the magnet bracket to rotate so as to adjust the angle of the permanent magnet, thereby adjusting the magnetic force of the magnetic seat.
Preferably, the magnetic seats are symmetrically arranged on a first symmetry axis, and the magnetic seats are symmetrically arranged on a second symmetry axis; the symmetry axis I is perpendicular to the symmetry axis II, and the drop foot is the center of the circle. The vector of the magnetic force applied to the fixed shaft of the hub motor can be adjusted by adjusting the magnetic force of each magnetic seat, so that the level is adjusted.
Preferably, all magnetic seats are divided into four groups by taking a first symmetry axis and a second symmetry axis as boundaries; in each group of magnetic seats, the size of the permanent magnet positioned in the middle is the largest, and the sizes of the permanent magnets at two sides are gradually reduced. The maximum magnetic force of the magnetic seat can be different due to different sizes of the permanent magnets, so that the vector of the magnetic force applied to the fixed shaft of the hub motor can be conveniently adjusted, and the levelness can be flexibly adjusted.
Preferably, a non-magnetic isolation layer is arranged between the adjacent magnetic seats.
Preferably, the level detection assembly comprises a laser transmitter and a laser receiver; the laser transmitter is arranged on one side of the shell, which is close to the rotor of the hub motor; the laser receiver is arranged on the hub motor rotor; the laser transmitter is positioned opposite the laser receiver. In a horizontal static state of the hub motor, the laser transmitter transmits laser, and the laser receiver records coordinate points as standard points; in the testing process, the laser transmitter transmits laser, and the laser receiver acquires coordinate points and compares the coordinate points with standard points to obtain the fixed-axis horizontal condition of the hub motor. The laser detection mode can be used for rapidly and accurately detecting the horizontal condition of the hub motor, and is beneficial to rapid response of the levelness adjustment of the hub motor.
Preferably, the rotor connection assembly includes a flange for connection with the rotor of the in-wheel motor and a chuck connected with the flange. The chuck is used for being connected with the traction motor, and the traction motor drives the chuck and the flange to rotate, so that the hub motor rotor is driven to rotate.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the method can avoid deviation of levelness caused by the actions of air assistance, gravity and self-rotating centrifugal force when the hub motor rotates in the test process, and ensure that the fixed shaft and the rotor of the hub motor are always kept horizontal and coaxial with the traction motor in the test process;
2. the method can quickly realize that the fixed shaft and the rotor of the hub motor are horizontally arranged and coaxial with the central shaft of the traction motor in a static state;
3. the device can avoid deviation of levelness caused by the actions of air assistance, gravity and self-rotating centrifugal force when the hub motor rotates in the test process, and ensure that the fixed shaft and the rotor of the hub motor are always kept horizontal and coaxial with the traction motor in the test process;
4. the device can realize that the magnetic force seat applies magnetic force to the fixed shaft of the hub motor in all directions and can realize magnetic force adjustment; the adjustment is convenient and fast, and the levelness can be flexibly adjusted;
5. the device can rapidly and accurately detect the horizontal condition of the hub motor by adopting a laser detection mode, and is beneficial to rapid response of the levelness adjustment of the hub motor.
Drawings
FIG. 1 is a schematic view of the structure of the device of the present invention;
FIG. 2 is a schematic view of the structure of the fixed shaft assembly of the device of the present invention;
FIG. 3 is a schematic illustration of the connection of a permanent magnet to a rotating electrical machine in the apparatus of the present invention;
FIG. 4 is an application of the device of the present invention to an electric automobile in-wheel motor test system;
wherein 1 is a hub motor, 11 is a hub motor dead axle, 12 is a hub motor rotor, 2 is a dead axle fixing component, 21 is a shell, 22 is a containing cavity, 23 is a magnetic seat, 231 is a permanent magnet, 232 is a magnetizer, 233 is a soft magnet, 234 is a non-magnetizer, 235 is a rotating motor, 236 is a magnet bracket, 24 is a base, 3 is a rotor connecting component, 31 is a flange, 32 is a chuck, 41 is a laser transmitter, 42 is a laser receiver, 51 is a symmetry axis I, 52 is a symmetry axis II, 6 is a coupler, 7 is a rotational speed torque meter, 8 is a traction motor, 9 is a parameter acquisition meter, and 10 is a power supply.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
Example 1
The embodiment provides a motor fixing method for testing an electric automobile hub motor, which comprises the following steps: the hub motor rotor is horizontally arranged and is coaxially connected with the traction motor center shaft; magnetic seats are distributed on the outer sides of the fixed shafts of the hub motors in a plurality of directions; the magnetic force is applied to the fixed shaft of the wheel hub motor through the magnetic seat so as to enable the fixed shaft of the wheel hub motor to suspend and be horizontally fixed; in the process of testing the hub motor, detecting the horizontal condition of the hub motor; when the angle deviation of the hub motor from the horizontal angle is detected, the magnetic force of the magnetic seat is adjusted to adjust the magnetic force applied to the fixed shaft of the hub motor in all directions, so that the hub motor is kept horizontal in the testing process.
Because the fixed shaft of the hub motor and the rotor are coaxially arranged, the central shaft of the traction motor is horizontally arranged; therefore, in a static state, the rotor of the hub motor is coaxially connected with the central shaft of the traction motor, so that the fixed shaft and the rotor of the hub motor are coaxial with the central shaft of the traction motor. The method of the invention applies magnetic force to the fixed shaft of the wheel hub motor in a plurality of directions to suspend the fixed shaft of the wheel hub motor, and the fixed shaft of the wheel hub motor is kept horizontal by adjusting the magnitude of the magnetic force in each direction in the test process; the phenomenon that levelness is deviated due to the fact that the hub motor is subjected to the actions of air assistance, gravity and self-rotating centrifugal force in the rotation process of the hub motor is avoided, the fixed shaft and the rotor of the hub motor are ensured to be always kept horizontal and coaxial with the traction motor in the test process, and therefore accurate hub motor performance test parameters are obtained.
Preferably, the hub motor rotor is horizontally arranged and is coaxially connected with the traction motor center shaft; magnetic seats are distributed on the outer sides of the fixed shafts of the hub motors in a plurality of directions; the magnetic force is applied to the fixed shaft of the wheel hub motor through the magnetic seat so as to enable the fixed shaft of the wheel hub motor to suspend and horizontally fix, which means that:
firstly, fixing and adjusting a hub motor rotor to enable the hub motor rotor to be coaxially connected with a traction motor center shaft which is horizontally arranged; then pushing the assembly provided with the magnetic seat to the hub motor until the assembly is sleeved on the fixed shaft of the hub motor; and then detecting the levelness of the fixed shaft of the hub motor and adjusting the magnetic force of the magnetic seat until the fixed shaft of the hub motor is horizontally arranged. The mode can quickly realize that the fixed shaft and the rotor of the hub motor are horizontally arranged and coaxial with the central shaft of the traction motor in a static state.
Example two
The embodiment provides a motor fixing device for testing an electric automobile hub motor, and the structure of the motor fixing device is shown in fig. 1 to 3; comprising the following steps:
the horizontal detection component is used for detecting the horizontal condition of the fixed shaft 11 of the hub motor;
a rotor connection assembly 3 for fixing the in-wheel motor rotor 12;
and the fixed shaft fixing assembly 2 is used for applying magnetic force to the fixed shaft 11 of the wheel hub motor in a plurality of directions to suspend and fix the fixed shaft 11 of the wheel hub motor, and adjusting the magnitude of the magnetic force applied to the fixed shaft 11 of the wheel hub motor in each direction according to the detected horizontal condition of the fixed shaft 11 of the wheel hub motor so as to keep the fixed shaft 11 of the wheel hub motor horizontally fixed in the test process.
Because the hub motor dead axle 11 and the rotor are coaxially arranged, the central shaft of the traction motor is horizontally arranged; therefore, in the static state, the hub motor rotor 12 is coaxially connected with the traction motor central shaft, so that the hub motor fixed shaft 11 and the rotor are coaxial with the traction motor central shaft. The device applies magnetic force to the fixed shaft 11 of the wheel hub motor in a plurality of directions to suspend the fixed shaft 11 of the wheel hub motor, detects the horizontal condition of the fixed shaft 11 of the wheel hub motor in the test process and keeps the fixed shaft 11 of the wheel hub motor horizontal by adjusting the magnetic force in each direction; deviation of levelness caused by the actions of air assistance, gravity and self-rotation centrifugal force when the hub motor 1 rotates in the testing process is avoided, and the fixed shaft 11 and the rotor of the hub motor are ensured to be always horizontal and coaxial with the traction motor in the testing process, so that accurate performance parameters of the hub motor 1 are obtained.
The fixed shaft fixing assembly 2 comprises a base 24 and a shell 21 arranged on the base 24; a containing cavity 22 for containing the hub motor fixed shaft 11 is formed in one side of the shell 21, close to the rotor connecting assembly 3; the fixed shaft 11 of the hub motor and the cavity wall of the accommodating cavity 22 are provided with an adjusting gap; a plurality of magnetic seats 23 are arranged in the shell 21 around the circumference; the circumference is located outside the accommodation chamber 22; each magnetic seat 23 is respectively connected with an adjusting mechanism to realize the magnetic force adjustment of the magnetic seats 23.
To avoid mutual polarity exclusion between adjacent magnetic seats, a non-magnetic isolation layer is preferably provided between adjacent magnetic seats 23.
Each magnet holder 23 includes a permanent magnet 231 and a magnetizer 232; the magnetizers 232 are symmetrically arranged at two sides of a straight line where the circumference radius is; the inner sides of the magnetizers 232 at the two sides are provided with arc-shaped cavities; soft magnets 233 are respectively arranged on the cavity walls of the arc-shaped cavities at the two sides, and the inner sides of the soft magnets 233 at the two sides jointly form a rotating cavity; the permanent magnet 231 is rotatably arranged in the rotating cavity, and the rotation center of the permanent magnet 231 is positioned on a straight line where the circumference radius is positioned; a non-magnetizer 234 is arranged between the magnetizers 232 at two sides, and the non-magnetizer 234 extends to between the soft magnets 233; the permanent magnet 231 is connected to the adjustment mechanism. The adjusting mechanism comprises a rotating motor 235 and a magnet bracket 236 connected with the permanent magnet 231, and the magnet bracket 236 is connected with the rotating motor 235 to realize that the rotating motor 235 drives the magnet bracket 236 to rotate to adjust the angle of the permanent magnet 231, so that the magnetic force of the magnetic seat 23 is adjusted.
The principle of the magnetic base is as follows: the magnetic force released by the N pole of the permanent magnet returns to the S pole of the permanent magnet through the soft magnet and the magnetizer, and forms a magnetic field on the side facing the fixed shaft of the hub motor, so as to generate a magnetic moment for the fixed shaft of the hub motor. The magnitude of the magnetic moment can be adjusted by rotating and changing the angle of the permanent magnet, so that different forces with different magnitudes can be applied to different circumferential positions of the fixed shaft of the hub motor. When the permanent magnet is coaxial with the non-magnetizer, the magnetic force released from the N pole of the permanent magnet cannot form a magnetic field through the non-magnetizer, and no force acts on the fixed shaft of the hub motor. This arrangement allows the magnetic base 23 to apply magnetic force to the hub motor stator shaft 11 in all directions and allows magnetic force adjustment.
The magnetic seats 23 are symmetrically arranged on a first symmetry axis 51, and the magnetic seats 23 are symmetrically arranged on a second symmetry axis 52; the first symmetry axis 51 is perpendicular to the second symmetry axis 52, and the foot drop is the center of the circle. Dividing all the magnetic seats 23 into four groups by taking a first symmetry axis 51 and a second symmetry axis 52 as boundaries; in each set of magnetic seats 23, the permanent magnets 231 located in the middle are the largest in size, and the permanent magnets 231 on both sides are gradually smaller in size. By adjusting the magnitude of the magnetic force of each magnetic seat 23, the vector of the magnetic force received by the hub motor stator shaft 11 can be adjusted, thereby adjusting the level. The maximum magnetic force of the magnetic seat 23 can be different due to different sizes of the permanent magnets 231, so that the vector of the magnetic force applied to the fixed shaft 11 of the hub motor can be conveniently adjusted, and the levelness can be flexibly adjusted.
The level detection assembly includes a laser transmitter 41 and a laser receiver 42; the laser transmitter 41 is disposed on the side of the housing 21 near the in-wheel motor rotor 12; the laser receiver 42 is disposed on the in-wheel motor rotor 12; the laser transmitter 41 is located opposite the laser receiver 42. In a horizontally stationary state of the in-wheel motor 1, the laser transmitter 41 emits laser light, and the laser receiver 42 records a coordinate point as a standard point; during the test, the laser transmitter 41 emits laser light, and the laser receiver 42 collects coordinate points and compares the coordinate points with standard points to obtain the horizontal condition of the hub motor dead axle 11. The detection method can adopt the prior art. The laser detection mode can be used for rapidly and accurately detecting the horizontal condition of the hub motor 1, and is beneficial to rapid response of the levelness adjustment of the hub motor 1.
The rotor connection assembly 3 includes a flange 31 for connection with the in-wheel motor rotor 12 and a chuck 32 connected with the flange 31. The chuck 32 is used for being connected with a traction motor, and the traction motor drives the chuck 32 and the flange 31 to rotate, so that the hub motor rotor 12 is driven to rotate. As shown in fig. 4, the chuck 32 may be connected with a central shaft of the traction motor 8 through a coupling 6 and a rotational speed torque meter 7, the rotational speed torque meter 7 is connected with a parameter acquisition meter 9, and the hub motor is electrically connected with a power supply 10.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.
Claims (10)
1. A motor fixing method for testing an electric automobile hub motor is characterized by comprising the following steps of: the hub motor rotor is horizontally arranged and is coaxially connected with the traction motor center shaft; magnetic seats are distributed on the outer sides of the fixed shafts of the hub motors in a plurality of directions; the magnetic force is applied to the fixed shaft of the wheel hub motor through the magnetic seat so as to enable the fixed shaft of the wheel hub motor to suspend and be horizontally fixed; in the process of testing the hub motor, detecting the horizontal condition of the hub motor; when the angle deviation of the hub motor from the horizontal angle is detected, the magnetic force of the magnetic seat is adjusted to adjust the magnetic force applied to the fixed shaft of the hub motor in all directions, so that the hub motor is kept horizontal in the testing process.
2. The motor fixing method for electric automobile in-wheel motor test according to claim 1, characterized in that: the hub motor rotor is horizontally arranged and is coaxially connected with the traction motor center shaft; magnetic seats are distributed on the outer sides of the fixed shafts of the hub motors in a plurality of directions; the magnetic force is applied to the fixed shaft of the wheel hub motor through the magnetic seat so as to enable the fixed shaft of the wheel hub motor to suspend and horizontally fix, which means that:
firstly, fixing and adjusting a hub motor rotor to enable the hub motor rotor to be coaxially connected with a traction motor center shaft which is horizontally arranged; then pushing the assembly provided with the magnetic seat to the hub motor until the assembly is sleeved on the fixed shaft of the hub motor; and then detecting the levelness of the fixed shaft of the hub motor and adjusting the magnetic force of the magnetic seat until the fixed shaft of the hub motor is horizontally arranged.
3. The motor fixing device for a motor fixing method for electric automobile in-wheel motor test according to claim 1, characterized in that: comprising the following steps:
the horizontal detection assembly is used for detecting the fixed shaft horizontal condition of the hub motor;
a rotor connection assembly for fixing a rotor of the in-wheel motor;
the fixed shaft fixing component is used for applying magnetic force to the fixed shaft of the wheel hub motor in a plurality of directions to realize suspension and fixation of the fixed shaft of the wheel hub motor, and adjusting the magnitude of the magnetic force applied to the fixed shaft of the wheel hub motor in all directions according to the detected horizontal condition of the fixed shaft of the wheel hub motor so as to keep the fixed shaft of the wheel hub motor horizontally fixed in the test process;
the fixed shaft fixing assembly comprises a base and a shell arranged on the base; one side of the shell, which is close to the rotor connecting assembly, is provided with an accommodating cavity for accommodating a fixed shaft of the hub motor; an adjusting gap is reserved between the fixed shaft of the hub motor and the cavity wall of the accommodating cavity; a plurality of magnetic seats are arranged in the shell around the circumference; the circumference is positioned outside the accommodating cavity; each magnetic seat is respectively connected with an adjusting mechanism to realize the magnetic force adjustment of the magnetic seat.
4. A motor fixture according to claim 3, wherein: each magnetic seat comprises a permanent magnet and a magnetizer; the magnetizers are symmetrically arranged at two sides of a straight line where the circumference radius is; the inner sides of the magnetizers at the two sides are provided with arc-shaped cavities; soft magnets are respectively arranged on the cavity walls of the arc-shaped cavities at the two sides, and the inner sides of the soft magnets at the two sides jointly form a rotating cavity; the permanent magnet is rotatably arranged in the rotating cavity, and the rotating center of the permanent magnet is positioned on a straight line where the circumference radius is positioned; a non-magnetizer is arranged between the magnetizers at two sides, and the non-magnetizer extends to the space between the soft magnets; the permanent magnet is connected with the adjusting mechanism to realize the magnetic force adjustment of the magnetic seat.
5. The motor fixture of claim 4 wherein: the permanent magnet is connected with the adjusting mechanism to realize the magnetic force adjustment of the magnetic seat, which means that: the adjusting mechanism comprises a rotating motor and a magnet bracket connected with the permanent magnet, and the magnet bracket is connected with the rotating motor to drive the magnet bracket to rotate so as to adjust the angle of the permanent magnet, thereby adjusting the magnetic force of the magnetic seat.
6. A motor fixture according to claim 3, wherein: the magnetic seats are symmetrically distributed on the first symmetry axis, and the magnetic seats are symmetrically distributed on the second symmetry axis; the symmetry axis I is perpendicular to the symmetry axis II, and the drop foot is the center of the circle.
7. The motor fixture of claim 6 wherein: dividing all magnetic seats into four groups by taking a first symmetry axis and a second symmetry axis as boundaries; in each group of magnetic seats, the size of the permanent magnet positioned in the middle is the largest, and the sizes of the permanent magnets at two sides are gradually reduced.
8. A motor fixture according to claim 3, wherein: a non-magnetic conductive isolation layer is arranged between the adjacent magnetic seats.
9. The motor fixture according to any one of claims 3 to 8, wherein: the level detection assembly comprises a laser emitter and a laser receiver; the laser transmitter is arranged on one side of the shell, which is close to the rotor of the hub motor; the laser receiver is arranged on the hub motor rotor; the laser transmitter is positioned opposite the laser receiver.
10. The motor fixture according to any one of claims 3 to 8, wherein: the rotor connection assembly comprises a flange for connecting with a rotor of the hub motor and a chuck connected with the flange.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910208466.3A CN109828206B (en) | 2019-03-19 | 2019-03-19 | Motor fixing method and device for electric automobile hub motor test |
| SG11202003401SA SG11202003401SA (en) | 2019-03-19 | 2019-05-23 | Method and apparatus for fixing motor in hub motor test for electric vehicle |
| PCT/CN2019/088110 WO2020186622A1 (en) | 2019-03-19 | 2019-05-23 | Motor fixing method and fixing device for hub motor test of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910208466.3A CN109828206B (en) | 2019-03-19 | 2019-03-19 | Motor fixing method and device for electric automobile hub motor test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109828206A CN109828206A (en) | 2019-05-31 |
| CN109828206B true CN109828206B (en) | 2023-09-29 |
Family
ID=66870467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910208466.3A Active CN109828206B (en) | 2019-03-19 | 2019-03-19 | Motor fixing method and device for electric automobile hub motor test |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN109828206B (en) |
| SG (1) | SG11202003401SA (en) |
| WO (1) | WO2020186622A1 (en) |
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| CN113203948B (en) * | 2021-03-18 | 2023-05-26 | 江苏华源防爆电机有限公司 | Performance detection device for hub motor |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06141512A (en) * | 1992-10-22 | 1994-05-20 | Shinko Electric Co Ltd | Magnetic levitation motor |
| JPH1198737A (en) * | 1997-09-17 | 1999-04-09 | Toshiba Corp | Permanent magnet motor |
| CN2340978Y (en) * | 1998-07-18 | 1999-09-29 | 李翼鹏 | Floatation high speed bearing |
| CN101191748A (en) * | 2006-11-20 | 2008-06-04 | 北京航空航天大学 | High temperature superconduction magnetic levitation or electric machine quasi-static force test device |
| JP2012007719A (en) * | 2010-06-28 | 2012-01-12 | Toshiba Corp | Magnetic levitation device |
| CN102710077A (en) * | 2012-06-13 | 2012-10-03 | 中机国际工程设计研究院有限责任公司 | Orthogonal excitation synchronous motor and method for establishing gearbox and traditional synchronous motor test system by using same |
| CN103134629A (en) * | 2011-11-23 | 2013-06-05 | 深圳市福义乐磁性材料有限公司 | Device and method for testing magnetic driver rotor coupling unbalanced force |
| CN103728078A (en) * | 2014-01-24 | 2014-04-16 | 中国船舶重工集团公司第七0四研究所 | Test motor and method for achieving exciting force measurement of rotor bearing outer ring |
| CN205301530U (en) * | 2015-12-17 | 2016-06-08 | 上海中科深江电动车辆有限公司 | In -wheel motor loading testing arrangement |
| CN107733178A (en) * | 2017-10-23 | 2018-02-23 | 浙江合众新能源汽车有限公司 | A kind of hub motor for electric automobile test-bed |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000184772A (en) * | 1998-12-14 | 2000-06-30 | Toyota Motor Corp | Abnormality detector for motor |
| JP4505745B2 (en) * | 2005-12-09 | 2010-07-21 | アイシン・エィ・ダブリュ株式会社 | Stator position measuring method and measuring apparatus |
| US7646202B2 (en) * | 2007-12-17 | 2010-01-12 | Delta Electronics, Inc. | Static measuring method of electrical references of three-phase permanent magnet synchronous motor |
| CN102323552A (en) * | 2011-09-16 | 2012-01-18 | 东南大学 | Electromagnetic thrust measuring device for linear motor |
| CN203643175U (en) * | 2013-12-03 | 2014-06-11 | 北京交通大学 | Electric wheel hub motor testing stand |
| CN203772468U (en) * | 2014-01-24 | 2014-08-13 | 中国船舶重工集团公司第七0四研究所 | Testing motor for realizing measurement of outer ring excitation force of rotor and bearing |
| CN208752184U (en) * | 2018-07-16 | 2019-04-16 | 威海广泰空港设备股份有限公司 | More external rotor permanent magnet hub motor comprehensive test platforms |
-
2019
- 2019-03-19 CN CN201910208466.3A patent/CN109828206B/en active Active
- 2019-05-23 WO PCT/CN2019/088110 patent/WO2020186622A1/en active Application Filing
- 2019-05-23 SG SG11202003401SA patent/SG11202003401SA/en unknown
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06141512A (en) * | 1992-10-22 | 1994-05-20 | Shinko Electric Co Ltd | Magnetic levitation motor |
| JPH1198737A (en) * | 1997-09-17 | 1999-04-09 | Toshiba Corp | Permanent magnet motor |
| CN2340978Y (en) * | 1998-07-18 | 1999-09-29 | 李翼鹏 | Floatation high speed bearing |
| CN101191748A (en) * | 2006-11-20 | 2008-06-04 | 北京航空航天大学 | High temperature superconduction magnetic levitation or electric machine quasi-static force test device |
| JP2012007719A (en) * | 2010-06-28 | 2012-01-12 | Toshiba Corp | Magnetic levitation device |
| CN103134629A (en) * | 2011-11-23 | 2013-06-05 | 深圳市福义乐磁性材料有限公司 | Device and method for testing magnetic driver rotor coupling unbalanced force |
| CN102710077A (en) * | 2012-06-13 | 2012-10-03 | 中机国际工程设计研究院有限责任公司 | Orthogonal excitation synchronous motor and method for establishing gearbox and traditional synchronous motor test system by using same |
| CN103728078A (en) * | 2014-01-24 | 2014-04-16 | 中国船舶重工集团公司第七0四研究所 | Test motor and method for achieving exciting force measurement of rotor bearing outer ring |
| CN205301530U (en) * | 2015-12-17 | 2016-06-08 | 上海中科深江电动车辆有限公司 | In -wheel motor loading testing arrangement |
| CN107733178A (en) * | 2017-10-23 | 2018-02-23 | 浙江合众新能源汽车有限公司 | A kind of hub motor for electric automobile test-bed |
Non-Patent Citations (1)
| Title |
|---|
| 轮毂式永磁直流测功机系统的研究;张铁民;黄鹏焕;黄沛盛;黄翰;梁莉;;振动.测试与诊断(第05期);14-19+203 * |
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| Publication number | Publication date |
|---|---|
| SG11202003401SA (en) | 2020-10-29 |
| CN109828206A (en) | 2019-05-31 |
| WO2020186622A1 (en) | 2020-09-24 |
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