CN113049959A - Device and method for measuring parameters of micro-special motor - Google Patents
Device and method for measuring parameters of micro-special motor Download PDFInfo
- Publication number
- CN113049959A CN113049959A CN202110541011.0A CN202110541011A CN113049959A CN 113049959 A CN113049959 A CN 113049959A CN 202110541011 A CN202110541011 A CN 202110541011A CN 113049959 A CN113049959 A CN 113049959A
- Authority
- CN
- China
- Prior art keywords
- rotor
- motor
- stator
- measuring
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000008878 coupling Effects 0.000 claims abstract description 7
- 238000010168 coupling process Methods 0.000 claims abstract description 7
- 238000005859 coupling reaction Methods 0.000 claims abstract description 7
- 230000003287 optical effect Effects 0.000 claims description 16
- 238000012546 transfer Methods 0.000 claims description 16
- 238000011900 installation process Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 12
- 230000008859 change Effects 0.000 description 9
- 238000009434 installation Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000016507 interphase Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009500 colour coating Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Images
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- 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
- G01R31/343—Testing dynamo-electric machines in operation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention belongs to the field of motor parameter measurement, and relates to a device and a method for measuring parameters of a micro-special motor, wherein a sensing measurement module comprises a power supply, an oscilloscope and a display; the continuous measuring module comprises a slide rail, a sliding table and a corresponding adjusting knob, the supporting structure comprises a supporting bearing seat and a supporting bearing, and the small motor is used as a driving part. The invention fixes the stator by rigid connection, and the position of the stator and the rotor can be adjusted, thereby continuously measuring the air gap between the stator and the rotor and realizing the measurement of motor parameters in the air gap changing process. The rotor of the tested motor is connected with the small motor through the plum coupling, and the back electromotive force coefficient can be tested under the condition of consistent rotating speed. And the number of pole pairs, the voltage frequency and the peak amplitude are accurately measured by using the sensor so as to obtain accurate parameter values. The invention can realize the accurate measurement of the parameters of the micro special motor under the condition of adjustable air gap between the stator and the rotor.
Description
Technical Field
The invention belongs to the field of motor testing, and relates to a device and a method for measuring parameters of a micro-special motor.
Background
In engineering application, parameters between the stator and the rotor of the micro-special motor mainly comprise stator inductance, resistance, rotational inertia, pole pair number, back electromotive force constant, voltage frequency, peak amplitude and the like, the accuracy and the practicability of specific values required by the parameters in actual work are worthy of thinking and attention, but the problems that an air gap is not adjustable when the parameters are measured by the conventional equipment, a test method is single, data is not accurate enough and the like are also urgently needed to be solved.
Because the power supply outputs stable power, parameters such as inductance, resistance, rotational inertia, pole pair number, back electromotive force constant, voltage frequency, peak amplitude and the like exist among the stators and the rotors, and the corresponding variable parameter value can also change along with the change of the air gap when the distance between the stators and the rotors changes. The power supply provides power between the stator and the rotor, and the generated inductance is a key part of the measurement of the device. The size of an air gap between a stator and a rotor of a micro and special motor is only 0.25-2 mm generally, so that high precision and good continuity must be guaranteed in the measuring process.
Disclosure of Invention
The purpose of the invention is as follows:
in order to overcome the defects of the prior art, the invention aims to design a device for measuring parameters of a micro-special motor and a measuring method thereof, and provides a device which integrates the originally completely and independently performed motor parameter measuring process and can continuously measure other parameters of the motor.
The technical scheme adopted by the invention is as follows:
an experimental device for measuring parameters between a stator and a rotor of a motor and a measuring method thereof comprise a stator fixing rib plate (1), a stator (2), a rotor transfer shaft (3), a rotor (4), a shaft (5), a bearing seat (6), a deep groove ball bearing (7), a plum blossom coupling (8), a motor shaft (9), a small motor (10), a motor seat (11), a clamp transfer plate (121), a clamp transfer plate (122), an adjusting knob (131), an adjusting knob (132), a sliding table (141), a sliding table (142), a precise optical sliding rail (15), a measuring support plate (16), a display (17), a power supply (18) and an oscilloscope (19); wherein, stator fixing device (1) is through the screw, the nut links firmly with stator (2), rotor switching shaft (3) and rotor (4) fix a position through morse's tapering, rotor switching shaft (3) and axle (5) threaded connection screw up fixedly, axle (5) and deep groove ball bearing (7) inner circle are fixed through interference fit, deep groove ball bearing (7) outer lane and bearing frame (6) are screwed up fixedly through the bolt on the anchor clamps, bearing frame (6) and anchor keysets (122) are together fixed with bolted connection through two reamed holes, anchor keysets (121), anchor keysets (122) and slip table (141), slip table (142) are together with four countersunk screw connections, slip table (141), slip table (142) are connected with accurate optics slide rail (15), adjust knob (131), adjust knob (132) are installed respectively at slip table (141), On the sliding table (142), the shaft (5) is connected with the motor shaft (9) through a plum coupling (8), and the small motor (10) is installed on the motor base (11) and is connected with the power supply (18).
Furthermore, the rotor transfer shaft (3) and the rotor (4) are positioned by the Morse taper, and under the participation of the stator (2) in the measurement process after the Morse taper is used for positioning, the stator and the rotor generate mutually attracted magnetic force, so that the Morse taper can be positioned reliably, and the rotor (4) and the rotor transfer shaft (3) do not move relatively.
Furthermore, the connection mode of the rotor connecting shaft (3) and the shaft (5) is a reverse thread structure, the purpose of the structure is to prevent the rotor connecting shaft from generating torque for unloading force in the rotating process and further loosening, and the rotor connecting shaft (3) of the corresponding matched model is replaced when parameters between the stator and the rotor are measured for different miniature special motors to complete parameter measurement. The size of the model of the rotor transfer shaft (3) is consistent with the aperture of the rotor (4) in the micro-special motor.
Furthermore, locking devices are attached to the inside of the adjusting knob (131) and the adjusting knob (132), the knobs can be locked at any time according to the value or range met by the air gap, and the positions of the sliding table (141) and the sliding table (142) on the precision optical sliding rail (15) are fixed, namely the air gap is guaranteed to be a constant value under the magnetic force.
Furthermore, in the installation process of the stator (2), the stator fixing rib plates (1) are tightly attached to the rotor (4) by adjusting the adjusting knob (131) and the height is calibrated, and the stator (2) is installed at the symmetrical center of the rib plates to ensure the concentricity after the measured height value is determined to be consistent with the previously theoretical calculated value.
Furthermore, the supporting structure comprises a supporting bearing seat (6) and a deep groove ball bearing (7), the supporting bearing seat (6) is installed on the clamp adapter plate (122), and the deep groove ball bearing (7) is installed on the supporting bearing seat (6).
Further, after rotating adjusting knob (131), slip table (141) axial displacement on accurate optics slide rail (15) to drive stator (2) and be close to rotor (4) on stator fixed rib plate (1) through rigid connection direct action, adjusting knob (131) and the inside subsidiary locking device of adjusting knob (132) are opened in the installation, adjusting position is when awaiting measuring, adjusting knob (132) lock is died, infrared laser rangefinder sensor ann is on anchor clamps keysets (121) through pasting close fixed rotor record initial value and adjusting knob (131) change range finding air gap size.
Further, the oscilloscope (19) is connected with the stator (2) by a wire without extra force in the middle.
Further, the precision optical slide rail (15) is of a dovetail groove type, the sliding table (141) and the sliding table (142) are nested in the dovetail groove, the adjusting knob (131) and the adjusting knob (132) are matched with the sliding table to realize single-degree-of-freedom rotation, and the adjusting knob is matched with a thread structure on the dovetail groove to realize axial feeding movement so as to ensure the relative position of the sliding table and the precision optical slide rail (15).
Furthermore, the measurement of inductance, torque and back electromotive force coefficient requires the addition of other sensors such as a high-precision infrared laser ranging sensor in addition to the oscilloscope.
In conclusion, the stator fixing device (1) is fixedly connected with the stator (2) through screws and nuts, and the stator fixing rib plates (1) and the measuring support plate (16) are arranged on the clamp adapter plate (121) and fixed on the sliding table (141) through countersunk screws; the rotor transfer shaft (3) and the rotor (4) are positioned and fixed through Morse taper; the rotor transfer shaft (3) is provided with a reverse thread structure which is screwed and fixed with the shaft (5); the shaft (5) and the inner ring of the deep groove ball bearing (7) are fixed in an interference fit manner; the outer ring of the deep groove ball bearing (7) and the bearing seat (6) are screwed and fixed through a bolt on the bearing seat; the bearing seat (6) and the clamp adapter plate (122) are fixed together by bolts through two hinge holes of a standard component; the clamp adapter plate (121) and the clamp adapter plate (122) are respectively connected with the sliding table (141) and the sliding table (142) through four standard part screws; the sliding table (141) and the sliding table (142) are arranged on the precision optical sliding rail (15); the adjusting knob (131) and the adjusting knob (132) are respectively arranged on the sliding table (141) and the sliding table (142) and used for controlling the positions of the sliding tables; the sliding table (141), the sliding table (142) and the precision optical sliding rail (15) generate horizontal axial movement through a thread feeding structure in the knob, when the adjusting knob (131) is rotated, the sliding table (141) can move along the direction of the sliding rail, and the position of the rotor (4) is determined to achieve air gap change adjustment through locking the adjusting knob (132) after a stator fixing rib plate (1) which is rigidly connected to the sliding table (141) directly acts on the stator (2); the size of the generated air gap is obtained by reading of a high-precision laser ranging sensor arranged on the clamp adapter plate (121); after a power supply (18) is electrified, the stator (2) is fixed, and the rotor (4) is driven by a small motor (10) on a motor base (11) to generate corresponding experimental parameters between the stator and the rotor through torque transmission of a plum coupling (8); the oscilloscope (17) measures parameters correspondingly through the air gaps between the stator and the rotor and obtains data on the display (15), thereby measuring the specific numerical value of the stator and the rotor of the micro-special motor during working.
The invention has the beneficial effects that:
(1) according to the invention, the gear and rack matching of the internal thread feeding structure of the precise optical slide rail and the adjusting knob is adopted to change the revolute pair into the moving pair, so that the recording of the distance measuring sensor is more convenient, and the air gap between the stator and the rotor is conveniently adjusted, thereby improving the measuring precision.
(2) The invention determines the inductance not to be influenced by the electromagnetic reversing by the stator coils in the centrosymmetric distribution, so that the displacement can not generate jumping, and the stator and the rotor are always ensured to be prevented from being attached under the action of magnetic force, thereby not influencing the measurement result and ensuring the measurement continuity.
(3) According to the invention, the Mohs taper is adopted between the rotor and the rotor connecting shaft to ensure static fit and accurate positioning, the magnetic attraction force between the rotor is large when the measuring distance is only within the range of 0.25-2 mm, the Mohs taper is better positioned by utilizing the attraction magnetic force, possible relative motion is not easy to occur between the rotor and the connecting shaft under the reinforcing and matching action of the magnetic force, the position accuracy is ensured, the disassembly is convenient, and the large end of the rotor connecting shaft faces to one side close to the stator for installation.
(4) The rotor connecting shaft is designed in a main mode of reverse threaded connection, the rotor connecting shaft is easy to separate by reducing the action of screwing force in the rotor rotation measuring process by using the threaded connection, and the relative position relation of the rotor connecting shaft and the shaft in the measuring process is more tightly fixed by using the reverse threaded connection structure.
(5) The invention is suitable for measuring the parameters of the stator and the rotor of the micro special motor, the rotors with different types can be matched with the rotor connecting shafts with different types correspondingly and then are matched with the shafts uniformly, and rib plates can be properly added for different stator sizes to ensure that the parameters of various micro special motors can be measured, thereby avoiding single function.
(6) In the design and installation, the invention firstly installs the rotor in the test device in the assembly process, then measures and calculates the calibration height, then adjusts the adjusting knob to cling to the rib plate mark, and then installs the stator to ensure the coaxiality of the stator and the rotor by the hole shaft matching and the end surface matching and the adjustment of the installation sequence in the assembly process, thereby reducing the system error and improving the precision.
(7) According to the invention, through the application of standard components such as a bearing, a bolt, a nut and the like, the replacement and maintenance are simpler and more convenient, and the sensor directly acts on the stator and the rotor, so that the advantages of precision, convenience in installation and the like are achieved, and the measurement is more accurate and efficient.
(8) The measured motor rotor is arranged on the rotor connecting shaft and is connected with the small motor through the coupler, so that the rotating speed is determined, the operation that the measured motor can only be pulled by hands to rotate is optimized in the process of measuring parameters, and the rotating speed of the measured motor rotor is more stable and the accurate result is convenient to measure.
Drawings
FIG. 1: the device is used for measuring parameters between a stator and a rotor of the motor;
FIG. 2: the device for measuring parameters between the stator and the rotor of the motor is in a cross-sectional view when the rotor connecting shaft is connected with the shaft;
FIG. 3: the device for measuring the parameters between the stator and the rotor of the motor is arranged on the cross section of the bearing seat, the clamp adapter plate and the sliding table;
FIG. 4: schematic diagrams of a measuring platform and corresponding measuring components of a device for measuring parameters between a stator and a rotor of a motor;
FIG. 5: a side view of a movable part of the device for measuring parameters between the stator and the rotor of the motor;
FIG. 6: a side view of a quincunx coupler in the device for measuring parameters between a stator and a rotor of the motor;
FIG. 7: a side view of an adjusting knob, a sliding table and a precise optical sliding rail in the device for measuring parameters between a stator and a rotor of a motor;
FIG. 8: the side view of the rotor, the rotor transfer shaft, the shaft and the deep groove ball bearing in the device for measuring the parameters between the stator and the rotor of the motor is connected.
Detailed Description
The invention is described in further detail below with reference to the drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For the convenience of understanding the technical content of the present invention, the technical solution thereof will be further explained with reference to the accompanying drawings. The words "front", "rear", "upper", "lower", and the like used in the description of the present invention, which represent orientations, are set forth based on the relationship between the drawings for the purpose of convenience of description, and should not be construed as limiting the technical contents of the present invention. Except for clear definition, the words of matching relation such as "connect" should be understood in a broad sense and may be direct matching, indirect matching, fixed connection, detachable connection and the like, which can be understood by those skilled in the art according to the purpose of the present invention.
The invention is during processing and manufacturing: firstly, the magnetic force of the stator and the rotor is larger, the stator fixing rib plates (1) are not suitable for soft materials, aluminum plates are used as raw materials for milling and forming, the stator (2) and the rotor (4) are basic measuring elements and are provided by a micro special motor to be measured, and the center of the rotor can be connected with the rotor connecting shaft (3) only through corresponding holes.
The rotor connecting shaft (3) is the most critical part in a driving part, firstly, the rotor connecting shaft (3) is connected with the shaft (5) by reverse threads, and finish machining is required besides the requirement of precision during threading. The surface of the rotor transfer shaft needs to have Morse taper, 7 types are provided according to the international standard of the Morse taper, and the Morse taper processed at this time is the Morse 6 No. 1: 19.1801 degrees 29 '36'. When the Morse taper is turned, the small sliding plate of the lathe rotates by 1 degree 29 '36', the turning is detected by a color coating method, the outer circle of the turned part is adjusted to the size, the angle of the small sliding plate is adjusted to 1 degree 29 '36', a part of taper 1/2 is turned, a line is drawn on the conical surface by a stone pen, the sleeve gauge is sleeved on the workpiece to rotate, the sleeve gauge is taken out, the part of the stone pen drawn line which is rubbed off is observed, if the conical head part is rubbed, the taper is too small, otherwise, the taper is too large, the small sliding plate is loosened at the moment, the sleeve gauge is lightly knocked as required until the contact area of the conical surface reaches about eighty percent, and the universal angle ruler or the angle template can.
The shaft (5) can be manufactured by rough turning and then finish turning. 6200 deep groove ball bearing is selected as the open bearing (7), and lubrication is taken during installation to reduce the influence of friction on the result.
The invention is assembled: firstly, in the assembling process, sliding tables (141) and (142) are installed on a precision optical slide rail (15), a clamp adapter plate (121) and a clamp adapter plate (122) are installed on the sliding tables (141) and (142), then a measuring platform and a stator fixing rib plate (1) are installed on the clamp adapter plate (121), and a bearing seat (6) installed on the clamp adapter plate (122) is connected through two hinged holes by bolts. At the moment, the adjusting knobs (131) and (132) can be properly adjusted in position, and then the deep groove ball bearings (7) and the shaft (5) are installed. The rotor (4) and the rotor transfer shaft (3) are positioned by adopting a base hole Morse taper and are fastened on the shaft (5) in a reverse thread connection mode. The shaft (5) is arranged at the inner ring of the deep groove ball bearing (7), and the outer ring of the deep groove ball bearing (7) is arranged on the bearing seat (6) and is controlled to be screwed down by a bolt on the bearing seat. Because the bearing seat has the tendency of forward overturning, the connection of the reamed hole bolt needs certain pretightening force, and the pretightening force can be carried out by using a fixed torque wrench and a force measuring torque wrench.
After the measuring position of the optical slide rail is selected to be proper, the adjusting knob (132) is locked, the adjusting knob (131) is adjusted to enable the stator fixing rib plates (1) to be attached to the rotor tightly, the height is calibrated, then the stator (2) is installed at the symmetrical center of the rib plates after the measuring height value is determined to be consistent with the previous theoretical calculation value, and the coils are distributed in a central symmetry mode to guarantee concentricity.
When the clamp adapter plate (122) is processed, a tool holder mounting mode is adopted, four screws (132) are used for connecting a sliding table (142), and the sliding tables (141) (142) are mounted on the precise optical sliding rail (15) so as to realize the change of inductance and other parameter values caused by the measurement and change of the axial distance.
The deep groove ball bearing (7) generates friction force when rotating, but the friction between the bearings can be ignored under the consideration of the factors of stable driving force, small air gap change and the like under the driving of a small motor (10), thereby improving the measurement accuracy of the whole device.
The invention marks the parameters of the oscilloscope (19) to be zero after installation, the power supply is electrified after the size of the measurement air gap is adjusted to generate electromagnetic force, the specific parameters are measured, the air gap between the stator and the rotor is changed by adjusting the adjusting knob (131), the displacement can be obtained by the scale reading of the precise optical slide rail (15) or the reading of a high-precision laser ranging sensor arranged on the fixture adapter plate (121), and the change of the parameters is obtained by the oscilloscope (19).
When measuring the pole pair number: the number of electrode pairs is usually provided by the motor supplier, and this parameter needs to be measured again when testing, a Direct Current (DC) supply is connected between the two motor phases and provides up to 5% of the desired standard voltage, called the Direct Current (DC) bus voltage, and current protection can also be set to the rated motor current. When the small-sized motor is rotated by energization, the applied voltage can be reduced if the motor rotor is rotated. If the resistance of the motor cannot be accurately measured, the applied voltage is gradually increased. The number of rotor table positions in one mechanical revolution represents the number of poles measured. Or a phase line of the motor is clamped by a ground clamp of the oscilloscope probe; the other phase wire is clamped by the probe. And then, when the rotating motor rotates at a constant speed for one circle, continuous corresponding waveforms appear on the oscilloscope, the number of the lower peak points is an even number, and the number is divided by 2 to obtain a polar logarithm value.
In measuring stator resistance and inductance: and measuring the interphase resistance of a direct current power supply (DC) stator by using a universal meter, connecting the voltage of the DC power supply (DC) between two motor phases, connecting the voltage and a current probe of an oscilloscope, increasing the voltage to a current equal to a nominal value, and centering a rotor and keeping an air gap unchanged. The current protection of the direct current power (DC) voltage source is disabled and one end of the voltage source cable is unplugged, without it being shut down. And (3) rapidly plugging a voltage source, monitoring voltage and current waveforms on the oscilloscope until a graph trend is obtained to be voltage, wherein the process can be regarded as a step, and when the current is increased to form a waveform, the measurement result is good, the time at which the voltage rises or falls to 63% is t = Ld/Rs, the measured time Ld/Rs is a constant, and the Ld value is obtained by multiplying the time by the Rs.
When measuring the back emf constant: the method is characterized in that a small motor is used, an oscilloscope is used for searching for interphase induction voltage, the proportional constant Ke between the speed of a mechanical motor and the amplitude of the back electromotive force inducted to the phase position of the motor is measured, the number of pole pairs of the motor is the same as that of the pole pair of the motor, a probe and a ground wire clamp of the oscilloscope are respectively connected with a phase line of the motor, the motor is rotated to measure the waveform of the back electromotive force, the middle waveform is taken, and the peak value and. Or fixing the stator of the tested motor on the ribbed plate, and connecting the three-phase outgoing line of the stator with the oscilloscope; a signal wire of the torque sensor is connected to a torque test signal processor to realize the conversion between the number and the torque reading; the small motor is driven to rotate by a power supply, the set rotating speed is 3000rpm, the small motor drives the torque sensor to rotate through the plum coupling, and the torque sensor drives the shaft and the rotor of the motor to be measured to rotate together, so that the accurate 3000rpm back electromotive force coefficient of the motor to be measured is obtained.
Claims (10)
1. A device for measuring the parameters of a micro special motor and a measuring method thereof are characterized in that: the device comprises stator fixing rib plates (1), a stator (2), a rotor transfer shaft (3), a rotor (4), a shaft (5), a bearing seat (6), a deep groove ball bearing (7), a plum blossom coupling (8), a motor shaft (9), a small motor (10), a motor base (11), a fixture adapter plate (121), a fixture adapter plate (122), an adjusting knob (131), an adjusting knob (132), a sliding table (141), a sliding table (142), a precise optical sliding rail (15), a measuring support plate (16), a display (17), a power supply (18) and an oscilloscope (19).
2. The apparatus for measuring the parameters of the micro-special motor and the measuring method thereof according to claim 1, wherein: the stator fixing ribbed plate (1) is fixedly connected with the stator (2) through screws and nuts, the stator fixing ribbed plate (1) and the measuring support plate (16) are arranged on the clamp adapter plate (121) and are fixed on the sliding table (141) through four countersunk head screws; the rotor transfer shaft (3) and the rotor (4) are positioned through Morse taper, the rotor transfer shaft (3) and the shaft (5) are connected and fastened through threads, and the shaft (5) and the inner ring of the deep groove ball bearing (7) are fixed in an interference fit manner; the outer ring of the deep groove ball bearing (7) and the bearing seat (6) are screwed and fixed through bolts on the bearing seat, and the bearing seat (6) and the clamp adapter plate (122) are connected and fixed together through two hinged holes by bolts; the clamp adapter plate (122) is connected with the sliding table (142) through four countersunk head screws, the sliding table (141) and the sliding table (142) are installed on a dovetail groove of the precise optical sliding rail (15), the adjusting knob (131) and the adjusting knob (132) are installed on the sliding table (141) and the sliding table (142) respectively, the shaft (5) is connected with the motor shaft (9) through the plum coupler (8), and the small motor (10) is installed on the motor base (11) and connected with the power supply (18) through a wire.
3. The apparatus for measuring the parameters of the micro-special motor and the measuring method thereof according to claim 2, wherein: and (3) positioning the rotor connecting shaft (3) and the rotor (4) by adopting Morse taper, and rotating the small sliding plate of the lathe by 1 degree 29 '36' during machining or machining by using a numerical control lathe.
4. The apparatus for measuring the parameters of the micro-special motor and the measuring method thereof according to claim 1, wherein: the connection mode of the rotor transfer shaft (3) and the shaft (5) is a reverse thread structure, and the size of the model of the rotor transfer shaft (3) is determined by a rotor (4) in the micro-special motor to be measured.
5. The apparatus for measuring the parameters of the micro-special motor and the measuring method thereof according to claim 2, wherein: the adjusting knob (131) and the adjusting knob (132) are internally provided with a locking device.
6. The apparatus for measuring the parameters of the micro-special motor and the measuring method thereof according to claim 2, wherein: in the installation process of the stator (2), the adjusting knob (131) is adjusted to enable the stator fixing rib plates (1) to be tightly attached to the rotor (4) and to be calibrated in height, and the stator (2) is installed in the symmetry center of the rib plates to guarantee the concentricity of the stator and the rotor after the measured height value is determined to be consistent with a theoretical value.
7. The apparatus for measuring the parameters of the micro-special motor and the measuring method thereof according to claim 2, wherein: the supporting structure comprises a supporting bearing seat (6) and a deep groove ball bearing (7), the supporting bearing seat (6) is installed on the clamp adapter plate (122), and the deep groove ball bearing (7) is installed on the supporting bearing seat (6).
8. The apparatus for measuring the parameters of the micro-special motor and the measuring method thereof according to claim 2, wherein: a small motor is fixedly mounted on the motor base, an output shaft of the small motor is arranged at the outer end of the supporting structure and is connected with the shaft (5) through a plum coupling (8), and the output shaft of the small motor is coaxial with the shaft (5).
9. The apparatus for measuring the parameters of the micro-special motor and the measuring method thereof according to claim 2, wherein: when the adjusting knob (131) is rotated, the sliding table (141) is horizontally and axially displaced on the precise optical sliding rail (15) and directly acts on the stator fixing rib plate (1) through rigid connection, the rib plate drives the stator (2) to be close to the rotor (4), the locking devices attached to the inner parts of the adjusting knob (131) and the adjusting knob (132) are opened in the installation process, when the adjusting position is to be measured, the adjusting knob (132) is locked, and the adjusting knob (131) adjusts the air gap between the stator and the rotor.
10. The apparatus for measuring the parameters of the micro-special motor and the measuring method thereof according to claim 2, wherein: the precision optical sliding rail (15) is in a dovetail groove shape, the sliding table (141) and the sliding table (142) are nested in the dovetail groove, and the adjusting knob (131), the adjusting knob (132) and the sliding table are matched to realize single-degree-of-freedom rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110541011.0A CN113049959A (en) | 2021-05-18 | 2021-05-18 | Device and method for measuring parameters of micro-special motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110541011.0A CN113049959A (en) | 2021-05-18 | 2021-05-18 | Device and method for measuring parameters of micro-special motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113049959A true CN113049959A (en) | 2021-06-29 |
Family
ID=76518443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110541011.0A Pending CN113049959A (en) | 2021-05-18 | 2021-05-18 | Device and method for measuring parameters of micro-special motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113049959A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998621A (en) * | 2012-11-19 | 2013-03-27 | 腾达电动科技镇江有限公司 | Measuring device of disc type driving motor |
| CN103944330A (en) * | 2014-05-06 | 2014-07-23 | 华中科技大学 | Disc motor with adjustable air gap between stators and rotor |
| CN204301901U (en) * | 2014-12-29 | 2015-04-29 | 西安航志机电设备科技有限公司 | Small and special electric machine reaction moment tester |
| CN104967256A (en) * | 2015-07-14 | 2015-10-07 | 华英汽车集团有限公司 | Disc type motor with adjustable air gap |
| CN104993647A (en) * | 2015-07-14 | 2015-10-21 | 华英汽车集团有限公司 | Air-gap-adjustable disc-type motor and control method thereof |
| CN207457447U (en) * | 2017-07-12 | 2018-06-05 | 深圳核心医疗器械有限公司 | A kind of disc type electric machine overall characteristic test platform |
| CN109061467A (en) * | 2018-07-26 | 2018-12-21 | 广州市昊志机电股份有限公司 | A kind of back EMF coefficient of synchro measure motor and the device of cogging torque |
| CN209516751U (en) * | 2019-02-01 | 2019-10-18 | 至玥腾风科技投资集团有限公司 | A kind of adjustable disc type electric machine in gap and stroke-increasing electric automobile |
| CN111289895A (en) * | 2019-12-20 | 2020-06-16 | 杭州中豪电动科技有限公司 | Method for testing performance phase of stator disc of disc type motor |
| CN211826378U (en) * | 2019-12-20 | 2020-10-30 | 杭州中豪电动科技有限公司 | Disc type motor stator disc performance test equipment |
-
2021
- 2021-05-18 CN CN202110541011.0A patent/CN113049959A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998621A (en) * | 2012-11-19 | 2013-03-27 | 腾达电动科技镇江有限公司 | Measuring device of disc type driving motor |
| CN103944330A (en) * | 2014-05-06 | 2014-07-23 | 华中科技大学 | Disc motor with adjustable air gap between stators and rotor |
| CN204301901U (en) * | 2014-12-29 | 2015-04-29 | 西安航志机电设备科技有限公司 | Small and special electric machine reaction moment tester |
| CN104967256A (en) * | 2015-07-14 | 2015-10-07 | 华英汽车集团有限公司 | Disc type motor with adjustable air gap |
| CN104993647A (en) * | 2015-07-14 | 2015-10-21 | 华英汽车集团有限公司 | Air-gap-adjustable disc-type motor and control method thereof |
| CN207457447U (en) * | 2017-07-12 | 2018-06-05 | 深圳核心医疗器械有限公司 | A kind of disc type electric machine overall characteristic test platform |
| CN109061467A (en) * | 2018-07-26 | 2018-12-21 | 广州市昊志机电股份有限公司 | A kind of back EMF coefficient of synchro measure motor and the device of cogging torque |
| CN209516751U (en) * | 2019-02-01 | 2019-10-18 | 至玥腾风科技投资集团有限公司 | A kind of adjustable disc type electric machine in gap and stroke-increasing electric automobile |
| CN111289895A (en) * | 2019-12-20 | 2020-06-16 | 杭州中豪电动科技有限公司 | Method for testing performance phase of stator disc of disc type motor |
| CN211826378U (en) * | 2019-12-20 | 2020-10-30 | 杭州中豪电动科技有限公司 | Disc type motor stator disc performance test equipment |
Non-Patent Citations (2)
| Title |
|---|
| 冯觉林: "水轮发电机安装工艺学", 30 June 1987, 水利电力出版社, pages: 216 * |
| 王爱玲等: "现代数控机床", 31 March 2009, 国防大学出版社, pages: 255 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104132605A (en) | Device for detecting coaxiality of rotary table frame | |
| CN110186370B (en) | Dynamic testing equipment and method for blade angle measuring sensor | |
| CN112816869A (en) | Permanent magnet synchronous motor test bench and test system thereof | |
| CN215415776U (en) | Device for measuring parameters of micro-special motor | |
| CN113049959A (en) | Device and method for measuring parameters of micro-special motor | |
| JP2000105170A (en) | Apparatus for endurance test to main shaft unit | |
| CN214225360U (en) | Motor test bench and test system thereof | |
| CN112798015B (en) | Dynamic angle calibration device | |
| CN107598674B (en) | High-precision motorized spindle thermal elongation detection device | |
| CN109387177A (en) | A kind of contact angle measuring method of nonstandard angular contact ball bearing | |
| CN210664386U (en) | Detection device for axial runout and radial runout of harmonic reducer | |
| CN109205248A (en) | Circular saw prints feeding servo positioning system | |
| CN108021094A (en) | The laser detection platform and its detection method of high-grade, digitally controlled machine tools electro spindle vibration | |
| CN110645912A (en) | Machine vision panoramic measurement system and measurement method | |
| CN110567375A (en) | Multi-workpiece parallel vision measurement precision sliding table | |
| CN108188446B (en) | Cabin casting hole repairing device and casting hole repairing method | |
| CN113847878B (en) | Surface difference measuring equipment and measuring method for appearance part of excavator | |
| CN214502491U (en) | Zero adjusting device of driving mechanism based on photoelectric displacement sensor | |
| CN110441690B (en) | Miniature brushless motor testing device and testing method | |
| CN208860290U (en) | Capstan head roller bearing mounting surface flatness of contributing and mounting hole testing apparatus for verticality | |
| CN211262989U (en) | Tensile resistance testing device of electric cylinder | |
| CN220613921U (en) | Turntable bearing detection workbench | |
| CN209064963U (en) | Circular saw prints feeding servo positioning system | |
| CN209783785U (en) | torque fluctuation tester for torque motor | |
| CN211014560U (en) | Torque detection mechanism of stepping motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |