CN116660743A - Dynamic output torque testing device and method for disc hysteresis motor - Google Patents
Dynamic output torque testing device and method for disc hysteresis motor Download PDFInfo
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- CN116660743A CN116660743A CN202210153457.0A CN202210153457A CN116660743A CN 116660743 A CN116660743 A CN 116660743A CN 202210153457 A CN202210153457 A CN 202210153457A CN 116660743 A CN116660743 A CN 116660743A
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- 238000000034 method Methods 0.000 title description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000010998 test method Methods 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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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
- G01R31/343—Testing dynamo-electric machines in operation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0061—Force sensors associated with industrial machines or actuators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Analytical Chemistry (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a disk hysteresis motor dynamic output torque testing device and a testing method thereof, wherein the testing device comprises a base, a rotor, a lower supporting piece, a torque sensor signal output line and a motor stator power supply line, wherein the torque sensor is fixedly connected to the base, a testing shaft at the top of the torque sensor is fixedly connected with the bottom of the lower supporting piece, a fixing part for fixing a motor stator to be tested is arranged on the lower supporting piece, the rotor for fixing a motor rotor disk to be tested is detachably and rotatably connected with the top of the lower supporting piece, and the torque sensor signal output line is electrically connected with the torque sensor.
Description
Technical Field
The invention relates to the technical field of motor output torque testing, in particular to a dynamic output torque testing device and a dynamic output torque testing method for a disc hysteresis motor.
Background
Disc hysteresis motors are widely used with their excellent dynamic characteristics and wide rotational speed ranges. The disc hysteresis motor applied to the special equipment has the advantages of small output power and wide frequency application range, the rotor disc of the motor to be tested and the stator of the motor to be tested are distributed up and down in space, and the input current of the stator of the motor to be tested generates a rotary alternating magnetic field to drive the rotor disc of the motor to be tested to rotate, so that the rotor is driven to rotate. However, the rotor rotates at a high speed and is in non-contact with the stator of the motor to be tested, and the output torque of the disc hysteresis motor cannot be directly tested through the torque sensor.
Disclosure of Invention
The invention aims to provide a dynamic output torque testing device for a disc hysteresis motor, which aims at solving the problem that the torque sensor cannot directly test the output torque of the disc hysteresis motor in the prior art.
Another object of the present invention is to provide a method for testing dynamic output torque of a disc hysteresis motor
The technical scheme adopted for realizing the purpose of the invention is as follows:
the utility model provides a disk hysteresis motor dynamic output torque testing arrangement, includes base, rotor, lower support piece, torque sensor signal output line and motor stator power supply line, torque sensor fixed connection in on the base, the test shaft at torque sensor top with the bottom fixed connection of lower support piece, be equipped with the fixed part that is used for fixing the motor stator that awaits measuring on the lower support piece, be used for fixing the motor rotor disk that awaits measuring the rotor with the lower support piece rotates to be connected, torque sensor signal output line is connected with the torque sensor electricity, the motor stator power supply line is used for the motor stator that awaits measuring the power supply.
In the technical scheme, the rotor bottom surface is provided with the locating shaft, the locating shaft is used for fixing the motor rotor disk to be tested, the needle shaft arranged coaxially is fixed at the bottom of the locating shaft, and the lower supporting piece is provided with the axle nest matched with the axle head of the needle shaft.
In the technical scheme, the shaft nest is bowl-shaped, the shaft head is spherical, the shaft head is in annular line contact with the shaft nest, and the hardness of the shaft head is lower than that of the shaft nest.
In the above technical scheme, the top of the lower support member is provided with a positioning hole, the shaft nest is arranged on the inner bottom surface of the lower support member and is coaxial with the lower support member, and the shaft head is in matched contact with the shaft nest after the needle shaft passes through the positioning hole.
In the above technical scheme, the lower supporting piece is in a shape of a convex, and comprises a first supporting part and a second supporting part which are coaxially arranged, wherein the center of the first supporting part is provided with the positioning hole, and the annular walls of the first supporting part and the second supporting part are of cylindrical structures.
In the above technical solution, the diameter of the second supporting portion is larger than the diameter of the first supporting portion, the center of the motor stator to be tested is fixed on the outer side of the first supporting portion, and the bottom of the motor stator to be tested is positioned by the top surface of the second supporting portion.
In the above technical scheme, the second supporting portion is fixedly connected with the test shaft, and a lower positioning groove is formed in the bottom of the second supporting portion for inserting and fixing the test shaft.
In the technical scheme, the bottom surface of the torque sensor is fixedly connected with a fixing piece, and the fixing piece is fixedly connected with the base.
In the above technical scheme, the fixing member is a triangular prism, a quadrangular prism, a hexagonal prism or a cylinder.
In the above technical scheme, the base is provided with a fixing groove, the fixing piece is fixedly connected in the fixing groove, and the shape of the fixing groove is the same as that of the fixing piece.
In another aspect of the present invention, a testing method of the dynamic output torque testing device of a disc hysteresis motor is provided, comprising the following steps:
step 1, fixedly connecting a motor rotor disc to be tested to the rotor, fixedly connecting a motor stator to be tested to the lower supporting piece, placing the rotor on the lower supporting piece, electrically connecting a motor stator power supply line to the motor stator to be tested, and stably rotating the rotor on the lower supporting piece;
step 2, fixedly connecting a test shaft at the top of the torque sensor with the bottom of the lower supporting piece, fixedly connecting the torque sensor on the base, electrically connecting a signal output line of the torque sensor with the torque sensor, and completing equipment assembly;
and step 3, inputting alternating current into the motor stator power supply line for testing, and transmitting test data to the acquisition system through the torque sensor signal output line by the torque sensor to finish the testing.
In the above technical solution, in the step 1, the stator of the motor to be tested is fixedly connected to the first supporting portion of the lower supporting member, and when the rotor is placed on the lower supporting member, the shaft head is located on the shaft socket;
in the step 2, the test shaft of the torque sensor is inserted into the lower positioning groove of the lower supporting member and fixed, and the fixing member of the torque sensor is fixedly connected with the fixing groove of the base.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the dynamic output torque of the disc hysteresis motor is tested through the torque sensor, and the input torque test of the rotor disc of the motor to be tested is converted into the reaction torque test of the stator of the motor to be tested through the special structure, so that the real-time test of the dynamic output torque of the motor at any rotating speed is realized.
2. The invention solves the problems that the rotor of the disc hysteresis motor rotates at high speed and is in non-contact with the stator of the motor to be tested, and the output torque of the motor can not be directly tested by the torque sensor.
3. The dynamic output torque testing device for the disc hysteresis motor is free from the limitation of the rotating speed of the motor rotor disc to be tested, is convenient and quick to assemble, convenient to detach and high in detection accuracy.
Drawings
Fig. 1 is a schematic diagram of a dynamic output torque testing device of a disc hysteresis motor.
Fig. 2 is a schematic view of the structure of the axle nest and the axle head.
In the figure: 1-rotor, 2-motor rotor disk to be tested, 3-motor stator to be tested, 4-lower supporting part, 5-torque sensor, 6-torque sensor signal output line, 7-motor stator power supply line, 8-positioning shaft, 9-fixed slot, 10-positioning hole, 11-lower positioning slot, 12-testing shaft, 13-base, 14-fixed piece, 15-needle shaft and 16-shaft nest;
4-1-first supporting part, 4-2-second supporting part and 15-1-spindle nose.
Detailed Description
The present invention will be described in further detail with reference to specific examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
A disk hysteresis motor dynamic output torque testing device, as shown in figure 1, comprises a base 13, a torque sensor 5, a lower support 4, a rotor 1, a torque sensor signal output line 6 and a motor stator power supply line 7. The bottom fixed connection of torque sensor 5 in on the base 13, the test shaft 12 at the top of torque sensor 5 with lower support 4 fixed connection, specifically, the top of test shaft 12 with the bottom fixed connection of lower support 4, rotor 1 with the top of lower support 4 is dismantled and is rotated and be connected, the fixed connection of awaiting measuring motor stator 3 can be dismantled in on the lower support 4, awaiting measuring motor rotor dish 2 with rotor 1 can dismantle fixed connection. The motor stator power supply line 7 is electrically connected with the motor stator 3 to be tested, the motor stator power supply line 7 provides alternating current input for the motor stator 3 to be tested, the torque sensor 5 is electrically connected with the torque sensor signal output line 6, and a test signal of the torque sensor 5 is output through the torque sensor signal output line 6.
The torque of the motor stator 3 to be tested acting on the motor rotor disk 2 to be tested can generate reaction torque with equal magnitude and opposite direction on the motor stator 3 to be tested, and the input torque of the motor rotor disk 2 to be tested can be indirectly tested by testing the torque through the torque sensor 5, so that the real-time test of the dynamic output torque of the hysteresis motor is realized, and the real-time test is not limited by the rotating speed.
The bottom surface of the rotor 1 is fixedly connected with a positioning shaft 8, a needle shaft 15 which is coaxially arranged is fixed on the bottom surface of the positioning shaft 8, the needle shaft 15 is detachably and rotatably connected with the lower support piece 4, the lower support piece 4 is provided with a shaft nest 16 which is matched with a shaft head 15-1 of the needle shaft 15, the shaft nest 16 is bowl-shaped, and the shaft head 15-1 is spherical. Specifically, as shown in fig. 2, the lower support 4 is provided with a positioning hole 10, the shaft socket 16 is disposed on the inner bottom surface of the lower support 4 and is coaxially disposed with the lower support 4, after the needle shaft 15 passes through the positioning hole 10, the shaft head 15-1 is in matching contact with the shaft socket 16, the structure of the shaft socket 16 can limit the needle shaft 15 to slide horizontally, and simultaneously allows the needle shaft 15 to freely rotate, and the shaft head 15-1 and the shaft socket 16 keep circular line contact with each other, so that the friction area is small. And the hardness of the shaft head 15-1 is lower than that of the shaft nest 16, if the load is too high, the material of the shaft head 15-1 is firstly worn, the wear only increases the bandwidth of the contact ring, and the contact shape of the contact ring and the shaft head is not changed, so that the dynamic behavior is affected.
When the testing device is used, the needle shaft 15 is inserted into the positioning hole 10, the bottom spherical surface of the needle shaft 15 is positioned in the shaft nest 16, when the motor stator power supply line 7 is electrified, stable rotation of the rotor 1 at the top of the lower supporting piece 4 is realized, when the disc hysteresis motor is in operation, the motor stator 3 to be tested is fixed, after the internal iron core and the coil of the motor stator 3 to be tested are electrified, a rotary alternating magnetic field is generated, a pair of magnetic force pairs are formed between the internal iron core and the coil of the motor stator 3 to be tested and the motor rotor disc 2 to be tested, and torque is generated by magnetic force rotation to drive the motor rotor disc 2 to be tested to rotate in the same direction, and the rotor 1 is driven to rotate.
Example 2
On the basis of embodiment 1, in order to facilitate the disassembly of the dynamic output torque testing device of the disc hysteresis motor, the lower supporting piece 4 is in a convex shape, and comprises a first supporting portion 4-1 and a second supporting portion 4-2 which are coaxially arranged, the motor stator 3 to be tested is assembled outside the first supporting portion 4-1, the center of the first supporting portion 4-1 is provided with a positioning hole 10, the shaft nest 16 is positioned on the lower bottom surface in the second supporting portion 4-2, the bottom of the second supporting portion 4-2 is provided with a lower positioning groove 11 for the insertion and fixation of the testing shaft 12, the annular walls of the first supporting portion 4-1 and the second supporting portion 4-2 are of cylindrical structures, the diameter of the second supporting portion 4-2 is larger than that of the first supporting portion 4-1, the center of the motor stator 3 to be tested is fixed outside the first supporting portion 4-1, and the bottom of the motor stator 3 to be tested is positioned by the second supporting portion 4-2.
The torque sensor 5 bottom surface fixedly connected with mounting 14, mounting 14 is triangular prism, quadrangular prism, hexagonal prism or cylinder, base 13 is provided with fixed slot 9 mounting 14 with fixed slot 9 matches fixed connection, fixed slot 9 shape with mounting 14 is the same.
Example 3
A test method of a disk hysteresis motor dynamic output torque test device based on embodiment 1-2, comprising the steps of:
step 1, a motor rotor disc 2 to be tested is fixedly connected to the outside of the rotor 1, a motor stator 3 to be tested is fixedly connected to the outside of the first supporting part 4-1, the rotor 1 is rotationally connected with the lower supporting part 4, specifically, the shaft head 15-1 is in matched connection with the shaft socket 16, and the motor stator power supply line 7 is electrically connected with the motor stator 3 to be tested.
And 2, inserting the test shaft 12 into the lower positioning groove 11 and fixing the test shaft, fixedly connecting the fixing piece 14 with the fixing groove 9, and electrically connecting the torque sensor signal output line 6 with the torque sensor 5 to complete equipment assembly.
Step 3, the motor stator power supply line 7 inputs alternating current, an alternating rotating magnetic field is generated in the motor stator 3 to be tested, the alternating magnetic field of the motor stator 3 to be tested can act on the motor rotor disc 2 to be tested to generate magnetic torque M, the motor rotor disc 2 to be tested is driven to rotate, the motor rotor disc 2 to be tested drives the rotor 1 to rotate, and the torque M is the output torque of the motor. According to the characteristics of the acting force and the reaction force, the motor stator 3 to be tested can be subjected to reaction torque M ', M ' which is equal to the torque M borne by the motor rotor disc 2 to be tested and opposite in direction and acts on the test shaft 12, so that the test result M ' can be obtained, and the torque sensor 5 transmits test data to the acquisition system through the torque sensor signal output line 6, so that the test is completed.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature's illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "under" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "lower" may encompass both an upper and lower orientation. The device may be otherwise positioned (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The foregoing is merely a preferred embodiment of the invention, and it should be noted that modifications could be made by those skilled in the art without departing from the principles of the invention, which modifications would also be considered to be within the scope of the invention.
Claims (12)
1. The utility model provides a disk hysteresis motor dynamic output torque testing arrangement, its characterized in that includes base, rotor, lower support piece, torque sensor signal output line and motor stator power supply line, torque sensor fixed connection in on the base, the test shaft at torque sensor top with the bottom fixed connection of lower support piece, be equipped with on the lower support piece and be used for fixing the fixed portion of waiting to test motor stator, be used for fixing waiting to test motor rotor disk the rotor with lower support piece can dismantle and rotate and be connected, torque sensor signal output line is connected with the torque sensor electricity, motor stator power supply line is used for waiting to test motor stator power supply.
2. The disc hysteresis motor dynamic output torque testing device according to claim 1, wherein a positioning shaft is arranged on the bottom surface of the rotor, the positioning shaft is used for fixing the motor rotor disc to be tested, a needle shaft arranged coaxially is fixed at the bottom of the positioning shaft, and a shaft nest matched with a shaft head of the needle shaft is arranged on the lower supporting piece.
3. The disc hysteresis motor dynamic output torque testing device according to claim 2, wherein said shaft nest is bowl-shaped, said shaft head is spherical, said shaft head is in annular line contact with said shaft nest, and the hardness of said shaft head is lower than the hardness of said shaft nest.
4. A disc hysteresis motor dynamic output torque testing device according to claim 3, wherein a positioning hole is provided at the top of the lower support member, the shaft socket is provided on the inner bottom surface of the lower support member and is coaxially provided with the lower support member, and the shaft head is in matching contact with the shaft socket after the needle shaft passes through the positioning hole.
5. The device for testing dynamic output torque of disc hysteresis motor according to claim 4, wherein the lower supporting member is in a shape of a "convex" and comprises a first supporting portion and a second supporting portion which are coaxially arranged, wherein the positioning hole is formed in the center of the first supporting portion, and the annular walls of the first supporting portion and the second supporting portion are both in a cylindrical structure.
6. The disc hysteresis motor dynamic output torque testing device according to claim 5, wherein the diameter of the second supporting portion is larger than the diameter of the first supporting portion, the center of the motor stator to be tested is fixed at the outer side of the first supporting portion, and the bottom of the motor stator to be tested is positioned by the top surface of the second supporting portion.
7. The device for testing dynamic output torque of disc hysteresis motor according to claim 6, wherein the second supporting portion is fixedly connected with the test shaft, and a lower positioning groove is formed at the bottom of the second supporting portion for inserting and fixing the test shaft.
8. The device for testing dynamic output torque of a disc hysteresis motor according to claim 1, wherein a fixing member is fixedly connected to the bottom surface of the torque sensor, and the fixing member is fixedly connected to the base.
9. The disc hysteresis motor dynamic output torque testing device according to claim 8, wherein the fixing member is a triangular prism, a quadrangular prism, a hexagonal prism or a cylinder.
10. The device for testing dynamic output torque of disc hysteresis motor according to claim 9, wherein the base is provided with a fixing groove, the fixing member is fixedly connected in the fixing groove, and the shape of the fixing groove is the same as that of the fixing member.
11. A testing method based on the disk hysteresis motor dynamic output torque testing device according to any one of claims 1-10, characterized by comprising the following steps:
step 1, fixedly connecting a motor rotor disc to be tested to the rotor, fixedly connecting a motor stator to be tested to the lower supporting piece, placing the rotor on the lower supporting piece, electrically connecting a motor stator power supply line to the motor stator to be tested, and stably rotating the rotor on the lower supporting piece;
step 2, fixedly connecting a test shaft at the top of the torque sensor with the bottom of the lower supporting piece, fixedly connecting the torque sensor on the base, electrically connecting a signal output line of the torque sensor with the torque sensor, and completing equipment assembly;
and step 3, inputting alternating current into the motor stator power supply line for testing, and transmitting test data to the acquisition system through the torque sensor signal output line by the torque sensor to finish the testing.
12. The test method of claim 11, wherein,
in the step 1, a motor stator to be tested is fixedly connected to a first supporting part of the lower supporting piece, and when the rotor is placed on the lower supporting piece, the shaft head is positioned on the shaft nest;
in the step 2, the test shaft of the torque sensor is inserted into the lower positioning groove of the lower supporting member and fixed, and the fixing member of the torque sensor is fixedly connected with the fixing groove of the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210153457.0A CN116660743A (en) | 2022-02-18 | 2022-02-18 | Dynamic output torque testing device and method for disc hysteresis motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210153457.0A CN116660743A (en) | 2022-02-18 | 2022-02-18 | Dynamic output torque testing device and method for disc hysteresis motor |
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| Publication Number | Publication Date |
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| CN116660743A true CN116660743A (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210153457.0A Pending CN116660743A (en) | 2022-02-18 | 2022-02-18 | Dynamic output torque testing device and method for disc hysteresis motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116952437A (en) * | 2023-09-19 | 2023-10-27 | 航天泰心科技有限公司 | Motor torque measuring device |
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2022
- 2022-02-18 CN CN202210153457.0A patent/CN116660743A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116952437A (en) * | 2023-09-19 | 2023-10-27 | 航天泰心科技有限公司 | Motor torque measuring device |
| CN116952437B (en) * | 2023-09-19 | 2023-12-15 | 航天泰心科技有限公司 | Motor torque measuring device |
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