CN211236147U - Miniature brushless motor testing arrangement - Google Patents
Miniature brushless motor testing arrangement Download PDFInfo
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- CN211236147U CN211236147U CN201921521458.6U CN201921521458U CN211236147U CN 211236147 U CN211236147 U CN 211236147U CN 201921521458 U CN201921521458 U CN 201921521458U CN 211236147 U CN211236147 U CN 211236147U
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Abstract
The utility model discloses a miniature brushless motor testing arrangement belongs to miniature brushless motor test technical field. The device comprises a test board, a torque sensor, a motor-torque sensor connecting adapter, a rotating speed sensor and a torque adjusting device; the motor-torque sensor connecting adapter comprises a motor shell fixing structure to be tested and a torque sensor right end mounting seat, the motor shell fixing structure to be tested comprises a shell with a motor accommodating cavity to be tested and a motor front end surface fixing plate to be tested, and the torque sensor right end mounting seat is fixed on the left side of the motor accommodating shell to be tested; the torque adjusting device comprises a dynamic friction plate, a static friction plate and a static friction plate displacement adjusting device, wherein the static friction plate displacement adjusting device comprises an adjusting device fixing seat, a static friction plate fixing block and a static friction plate displacement adjusting rod. The device has the characteristics of reasonable structure, convenience and quickness in operation, accuracy in test and the like, and is special equipment for systematic test of the miniature brushless motor.
Description
Technical Field
The utility model relates to a miniature brushless motor test technical field.
Background
The miniature brushless motor has very wide application in the miniature unmanned aerial vehicle, and occupies very important position. When carrying out unmanned aerial vehicle power matching, especially when the flapping wing aircraft driving system design, the operating point of miniature brushless motor during actual operation can be influenced in motor, reduction gear and the configuration of flapping wing three, if its relation match improper then can cause whole actuating system energy consumption to increase, inefficiency, consequently need the characteristic curve of accurate measurement miniature brushless motor, promptly, when miniature brushless motor loads different voltages, the relation between the output torque of rotational speed, efficiency, output, input current and motor.
At present, most motor test systems are designed for large-size alternating current or direct current motors, and motor manufacturers generally do not perform systematic tests on the miniature brushless motors, so that most miniature brushless motors only have a few parameters such as working current, working rotating speed, internal resistance and the like, and miniature brushless motor loading test equipment capable of meeting the test requirements does not exist yet.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a miniature brushless motor testing arrangement, it has rational in infrastructure, the simple operation, characteristics such as test accuracy.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is:
a miniature brushless motor testing device comprises a testing platform, a torque sensor, a motor-torque sensor connecting adapter, a rotating speed sensor and a torque adjusting device;
the left side of the test platform is provided with a vertically arranged torque sensor left end mounting seat which is used for being fixedly connected with a test platform connecting structure of the torque sensor so that the torque sensor is kept transversely arranged;
the motor-torque sensor connecting adapter comprises a motor shell fixing structure to be detected and a torque sensor right end mounting seat, the motor shell fixing structure to be detected comprises a shell with a motor accommodating cavity to be detected and a motor front end face fixing plate to be detected, a motor rotating shaft adapting hole to be detected is formed in the middle of the motor front end face fixing plate to be detected, a screw hole for fixing the motor front end face to be detected is formed in the middle of the motor front end face fixing plate to be detected, a threaded connection structure is arranged between the motor front end face fixing plate to be detected and the shell so as to fix the motor to be detected in the motor accommodating cavity to be detected, the torque sensor right end mounting seat is fixed on the left side of the shell and coaxial with the motor rotating shaft adapting;
the rotating speed sensor is used for detecting the rotating speed of a rotating shaft of the motor to be detected;
the torque adjusting device comprises a movable friction plate, a static friction plate and a static friction plate displacement adjusting device, wherein a rotating shaft connecting structure used for being fixedly connected with a rotating shaft of a motor to be tested is arranged on the left side of the movable friction plate, the static friction plate is correspondingly arranged on the right side of the movable friction plate, the right side of the static friction plate is fixedly connected with the static friction plate displacement adjusting device, the static friction plate displacement adjusting device comprises an adjusting device fixing seat, a static friction plate fixing block and a static friction plate displacement adjusting rod, the adjusting device fixing seat is fixed on the right side of the test bench, the static friction plate fixing block is connected with the adjusting device fixing seat in a sliding mode through a linear sliding guide rail, the linear sliding guide rail is arranged in parallel with the axis of the rotating shaft of the motor to be tested, the static friction plate displacement adjusting rod comprises a rod, the right end of the rod body penetrates through the right end wall of the adjusting device fixing seat and is fixed with the displacement adjusting knob, the rod body is provided with external threads and is rotatably installed with a threaded hole of the static friction plate fixing block, the static friction plate is fixed at the left end of the static friction plate fixing block, and when the displacement adjusting knob is rotated, the static friction plate displacement adjusting rod drives the static friction plate fixing block to slide and displace along the axis direction of the rotating shaft of the motor to be tested, so that the static friction plate and the dynamic friction plate are in contact friction and generate friction force required by testing.
The utility model discloses the further improvement lies in:
the rotation speed sensor is a Hall rotation speed sensor: the device comprises a rotating disk, wherein a small magnet is arranged at the edge of the rotating disk, the rotating disk is fixed on the left side surface of a dynamic friction plate and is coaxial with a rotating shaft of a motor to be detected, and a Hall sensor corresponding to the small magnet is arranged on a fixed block of a static friction plate.
The left side of the static friction plate is provided with a movable friction plate sliding shaft which is coaxial with the rotating shaft of the motor to be tested, the movable friction plate and/or the rotating disk is provided with a movable friction plate sliding connection hole matched with the movable friction plate sliding shaft, and the movable friction plate sliding shaft is in sliding fit with the movable friction plate sliding connection hole.
The adjusting device fixing seat is a U-shaped fixing seat, the left side and the right side of the U-shaped fixing seat are respectively the left end wall and the right end wall of the adjusting device fixing seat, and the left end and the right end of the linear sliding guide rail are respectively fixedly connected with the left end wall and the right end wall of the adjusting device fixing seat.
The left end and the right end of the track of the linear sliding guide rail are respectively and fixedly connected with the left end wall and the right end wall of the adjusting device fixing seat, and the threaded hole of the static friction plate fixing block is positioned above the linear sliding guide rail.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the device takes the test bench as a carrier to complete the assembly and positioning of each part, and the left end mounting seat of the torque sensor is used for being fixedly connected with the test bench connecting structure of the torque sensor so as to ensure that the torque sensor is transversely arranged; a motor shell fixing structure of the motor-torque sensor connecting adapter is used for positioning the position to be measured of the motor to be measured, a rotating speed sensor is used for detecting the rotating speed of a rotating shaft of the motor to be measured, a torque adjusting device, by adjusting the displacement adjusting knob, the static friction plate displacement adjusting rod drives the static friction plate fixing block to slide and displace along the axial direction of the rotating shaft of the motor to be measured, so that the static friction plate and the dynamic friction plate are in contact friction and generate friction force required by testing to reach each testing torque value, and therefore, according to the testing requirements, different voltages and different torques are respectively loaded on the motor to be detected, and each power supply voltage value of the motor to be detected and the load current value and the rotating speed value corresponding to each torque value can be detected, the relation among the rotating speed, the efficiency, the output power, the input current and the output torque of the motor can be obtained when the motor to be tested is loaded with different voltages.
The left side of the static friction plate is provided with a movable friction plate sliding shaft which is coaxial with the rotating shaft of the motor to be tested, the movable friction plate and/or the rotating disk is provided with a movable friction plate sliding connection hole matched with the movable friction plate sliding shaft, and the movable friction plate sliding shaft is in sliding fit with the movable friction plate sliding connection hole. The structure can axially connect the static friction plate and the dynamic friction plate together through the sliding shaft of the dynamic friction plate, so that the step of positioning the dynamic friction plate after the motor to be tested is positioned at the test position is omitted, and the test process is more convenient.
The device has the characteristics of reasonable structure, convenience and quickness in operation, accuracy in test and the like, and is special equipment for performing systematic test on the miniature brushless motor.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the motor-torque sensor coupling adapter and torque sensor connection of FIG. 1;
FIG. 3 is a schematic illustration of the torque modulation device of FIG. 1;
FIG. 4 is a schematic view of the fixing base of the adjusting device shown in FIG. 3;
fig. 5 is a test curve diagram for testing the AT2308KV1450 type outer rotor brushless motor by using the device.
In the drawings: 1. a test bench; 2; a torque sensor; 3. a torque sensor left end mounting base; 4. a torque sensor right end mounting seat; 5. a housing; 6. a front end face fixing plate of a motor to be detected; 7. a motor to be tested; 8. an adapter connection structure of the torque sensor; 9. a test bench connecting structure of the torque sensor; 10. a dynamic friction plate; 11. a static friction plate; 12. a rotating shaft connecting structure; 13. a fixing seat of the adjusting device; 14. a static friction plate fixing block; 15. a static friction plate displacement adjusting rod; 16. a linear sliding guide rail; 17. rotating the disc; 18. a small magnet; 19. a Hall sensor; 20. the movable friction plate slides the shaft.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the attached drawings, and the specific connection mode of each part adopts the conventional means of mature bolts, rivets, welding, sticking and the like in the prior art, and the detailed description is not repeated.
As shown in FIGS. 1-4, a miniature brushless motor testing device comprises a testing table 1, a torque sensor 2 (model: LONGLV-WTQ98A), a motor-torque sensor coupling adapter, a rotating speed sensor and a torque adjusting device;
the left side of the test bench 1 is provided with a vertically arranged torque sensor left end mounting seat 3 which is used for being fixedly connected with a test bench connecting structure 9 (a connecting flange can be adopted) of the torque sensor 2, so that the torque sensor 2 is kept transversely arranged;
the motor-torque sensor connecting adapter comprises a motor shell fixing structure to be detected and a torque sensor right end mounting seat 4, the motor shell fixing structure to be detected comprises a shell 5 with a motor accommodating cavity to be detected and a motor front end face fixing plate 6 to be detected, a motor rotating shaft adapting hole to be detected is arranged in the middle of the motor front end face fixing plate 6 to be detected, a screw hole for fixing with the front end face of the motor 7 to be detected is arranged, a threaded connecting structure is arranged between the motor front end face fixing plate 6 to be detected and the shell 5 so as to fix the motor 7 to be detected in the motor accommodating cavity to be detected, the torque sensor right end mounting seat 4 is fixed on the left side of the shell 5 and coaxial with the motor rotating shaft adapting hole to be detected, and the torque sensor right end mounting seat 4 is fixedly connected with an adapter connecting;
the rotating speed sensor is used for detecting the rotating speed of a rotating shaft of the motor 7 to be detected;
as shown in fig. 3, the torque adjusting device includes a dynamic friction plate 10 (made of asbestos), a static friction plate 11 (made of asbestos), and a static friction plate displacement adjusting device, a rotating shaft connecting flange 12 for fixedly connecting with a rotating shaft of the motor 7 to be measured is provided on the left side of the dynamic friction plate 10, the static friction plate 11 is correspondingly provided on the right side of the dynamic friction plate 10, the right side of the static friction plate 11 is fixedly connected with the static friction plate displacement adjusting device, the static friction plate displacement adjusting device includes an adjusting device fixing seat 13, a static friction plate fixing seat 14 and a static friction plate displacement adjusting rod 15, the adjusting device fixing seat 13 is fixed on the right side of the test bench 1, the static friction plate fixing seat 14 is slidably connected with the adjusting device fixing seat 13 through a linear sliding guide rail 16, the linear sliding guide rail 16 is parallel to the axis of the rotating shaft of the motor 7, the left end and the right end of the rod body are respectively connected with the left end wall and the right end wall of the adjusting device fixing seat 13 in a rotating mode, the right end of the rod body penetrates through the right end wall of the adjusting device fixing seat 13 and is fixed with the displacement adjusting knob, the rod body is provided with external threads and is rotatably installed with a threaded hole of the static friction plate fixing block 14, the static friction plate 11 is fixed at the left end of the static friction plate fixing block 14, when the displacement adjusting knob is rotated, the static friction plate displacement adjusting rod drives the static friction plate fixing block 14 to slide and move along the axis direction of the rotating shaft of the motor 7 to be tested, and therefore contact friction is formed between the static friction plate 11 and the dynamic friction.
As shown in fig. 3, the rotation speed sensor is a hall rotation speed sensor (the speed measurement principle and structure thereof are the prior art, and the structure thereof is combined with the device according to the actual situation): the device comprises a rotating disk 17, wherein a small magnet 18 is arranged at the edge of the rotating disk 17, the rotating disk 17 is fixed on the left side surface of a dynamic friction plate 10 and is coaxial with a rotating shaft of a motor 7 to be tested, and a Hall sensor 19 corresponding to the small magnet 18 is arranged on a static friction plate fixing block 14.
As shown in fig. 3, a movable friction plate sliding shaft 20 coaxial with the rotating shaft of the motor 7 to be tested is arranged on the left side of the static friction plate 11, a movable friction plate sliding connection hole matched with the movable friction plate sliding shaft 20 is arranged on the movable friction plate 10 and/or the rotating disk 17, and the movable friction plate sliding shaft 20 is slidably matched in the movable friction plate sliding connection hole.
As shown in fig. 3-4, the adjusting device fixing seat 13 is a "U" shaped fixing seat, the left and right protruding portions of the "U" shaped fixing seat are the left and right end walls of the adjusting device fixing seat 13, respectively, and the left and right ends of the linear sliding guide 16 are fixedly connected to the left and right end walls of the adjusting device fixing seat 13, respectively.
As shown in fig. 4, the left end and the right end of the track of the linear sliding guide rail 16 are respectively and fixedly connected with the left end wall and the right end wall of the adjusting device fixing seat 13, and the threaded hole of the static friction plate fixing block 14 is located above the linear sliding guide rail 16.
A test method of a miniature brushless motor test device comprises the following steps:
a. the motor to be tested is positioned at a testing position, a rotating shaft of the motor 7 to be tested penetrates from the left side to the right side of a matching hole of the rotating shaft of the motor to be tested of a front end face fixing plate 6 of the motor to be tested, so that the front end face plate of the motor 7 to be tested is attached to the left side of the front end face fixing plate 6 of the motor to be tested, a screw penetrates from a screw through hole on the right side of the front end face fixing plate 6 of the motor to be tested and is screwed and fixed with a screw hole on the front end face of the motor 7 to be tested, then the front end face fixing plate 6 of the motor to be tested and a shell 5 are fixed together through a threaded connection structure, so that the motor 7 to be tested is fixed in a containing cavity;
b. the torque sensor 2 is connected with a DC5V direct current power supply which is adapted to the torque sensor 2, and is supplied with power with the motor 7 to be measured through a direct current stabilized power supply, and the direct current stabilized power supply has the functions of output voltage adjustment and display and output current display (model: A-BF SS-3030 SPL);
c. testing a motor to be tested, loading different voltages and different torques on the motor to be tested respectively according to test requirements, detecting load current values and rotating speed values corresponding to the different voltages and the different torques, inputting each test voltage value to the motor to be tested according to a DC stabilized power supply output voltage display value, adjusting a displacement adjusting knob according to the torque display value detected by the torque sensor 2 to ensure that the static friction plate 11 and the dynamic friction plate 10 are in contact friction and generate corresponding friction force to achieve each test torque value, and recording each power supply voltage value of the motor to be tested 7 and each load current value and rotating speed value corresponding to each torque value, wherein the load current value is an output current value displayed by the DC stabilized power supply, and the rotating speed value is a numerical value displayed by the rotating speed sensor;
d. and c, calculating a test result, and performing statistical calculation (calculation method in the prior art) according to the test power supply voltage values, the test torque values, the test power supply voltage values and the load current values and the rotating speed values corresponding to the test torque values of the motor 7 to be tested, which are obtained in the step c, so as to obtain the relationship among the rotating speed, the efficiency, the output power, the input current and the output torque of the motor when the motor 7 to be tested loads different voltages.
Claims (5)
1. The utility model provides a miniature brushless motor testing arrangement which characterized in that: the device comprises a test board (1), a torque sensor (2), a motor-torque sensor connecting adapter, a rotating speed sensor and a torque adjusting device;
the left side of the test bench (1) is provided with a vertically arranged torque sensor left end mounting seat (3) which is used for being fixedly connected with a test bench connecting structure (9) of the torque sensor (2) so that the torque sensor (2) is kept transversely arranged;
the motor-torque sensor connecting adapter comprises a motor shell fixing structure to be tested and a torque sensor right end mounting seat (4), the fixing structure of the shell of the motor to be tested comprises a shell (5) with a containing cavity of the motor to be tested and a front end surface fixing plate (6) of the motor to be tested, the middle part of the front end surface fixing plate (6) of the motor to be tested is provided with a rotating shaft adapting hole of the motor to be tested, and is provided with a screw through hole for fixing with the front end surface of the motor (7) to be tested, a threaded connection structure is arranged between the front end surface fixing plate (6) of the motor to be tested and the shell (5), so as to fix the motor (7) to be tested in the motor accommodating cavity to be tested, the right end mounting seat (4) of the torque sensor is fixed on the left side of the shell (5), the torque sensor right end mounting seat (4) is fixedly connected with an adapter connecting structure (8) of the torque sensor (2);
the rotating speed sensor is used for detecting the rotating speed of a rotating shaft of the motor (7) to be detected;
the torque adjusting device comprises a dynamic friction plate (10), a static friction plate (11) and a static friction plate displacement adjusting device, wherein the left side of the dynamic friction plate (10) is provided with a rotating shaft connecting structure (12) for fixedly connecting a rotating shaft of a motor (7) to be tested, the right side of the dynamic friction plate (10) is correspondingly provided with the static friction plate (11), the right side of the static friction plate (11) is fixedly connected with the static friction plate displacement adjusting device, the static friction plate displacement adjusting device comprises an adjusting device fixing seat (13), a static friction plate fixing block (14) and a static friction plate displacement adjusting rod (15), the adjusting device fixing seat (13) is fixed on the right side of the test bench (1), the static friction plate fixing block (14) is in sliding connection with the adjusting device fixing seat (13) through a linear sliding guide rail (16), the linear sliding guide rail (16) is in parallel arrangement with the axis of the rotating shaft of the motor (7), the static friction plate displacement adjusting rod (15) comprises a rod body and a displacement adjusting knob, the left end part and the right end part of the rod body are respectively and rotatably connected with the left end wall and the right end wall of the adjusting device fixing seat (13), the right end of the rod body passes through the right end wall of the adjusting device fixing seat (13) and is fixed with the displacement adjusting knob, the rod body is provided with external threads, and is screwed with the threaded hole of the static friction plate fixing block (14), the static friction plate (11) is fixed at the left end of the static friction plate fixing block (14), when the displacement adjusting knob is rotated, the static friction plate displacement adjusting rod drives the static friction plate fixing block (14) to slide and displace along the axial direction of the rotating shaft of the motor (7) to be measured, so that the static friction plate (11) and the dynamic friction plate (10) are in contact friction with each other and generate friction force required by testing.
2. The miniature brushless motor testing device of claim 1, wherein: the rotation speed sensor is a Hall rotation speed sensor: including rotary disk (17) the border of rotary disk (17) is equipped with little magnet (18), rotary disk (17) are fixed move the left surface of friction disc (10), and with the coaxial axle center of motor (7) pivot of awaiting measuring be equipped with on static friction disc fixed block (14) with the corresponding hall sensor (19) of little magnet (18).
3. The miniature brushless motor testing device of claim 2, wherein: the left side of the static friction plate (11) is provided with a dynamic friction plate sliding shaft (20) which is coaxial with a rotating shaft of the motor (7) to be tested, the dynamic friction plate (10) and/or the rotating disk (17) is provided with a dynamic friction plate sliding connection hole matched with the dynamic friction plate sliding shaft (20), and the dynamic friction plate sliding shaft (20) is in sliding fit in the dynamic friction plate sliding connection hole.
4. The miniature brushless motor testing device of claim 1, wherein: adjusting device fixing base (13) are "U" type fixing base, the left side and the right side protruding position of "U" type fixing base do respectively the left end wall and the right end wall of adjusting device fixing base (13), the left end and the right end of sharp sliding guide (16) respectively with the left end wall and the right end wall fixed connection of adjusting device fixing base (13).
5. The miniature brushless motor testing device of claim 4, wherein: the left end and the right end of the track of the linear sliding guide rail (16) are respectively fixedly connected with the left end wall and the right end wall of the adjusting device fixing seat (13), and the threaded hole of the static friction plate fixing block (14) is located above the linear sliding guide rail (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921521458.6U CN211236147U (en) | 2019-09-12 | 2019-09-12 | Miniature brushless motor testing arrangement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921521458.6U CN211236147U (en) | 2019-09-12 | 2019-09-12 | Miniature brushless motor testing arrangement |
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| CN211236147U true CN211236147U (en) | 2020-08-11 |
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| CN201921521458.6U Active CN211236147U (en) | 2019-09-12 | 2019-09-12 | Miniature brushless motor testing arrangement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114295267A (en) * | 2021-12-30 | 2022-04-08 | 嘉兴嘉优精密机械有限公司 | Motor characteristic detection tool system |
-
2019
- 2019-09-12 CN CN201921521458.6U patent/CN211236147U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114295267A (en) * | 2021-12-30 | 2022-04-08 | 嘉兴嘉优精密机械有限公司 | Motor characteristic detection tool system |
| CN114295267B (en) * | 2021-12-30 | 2023-10-24 | 嘉兴嘉优精密机械有限公司 | Motor characteristic detection tool system |
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