CN111596207A - Motor mechanical characteristic curve mapping device - Google Patents
Motor mechanical characteristic curve mapping device Download PDFInfo
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- CN111596207A CN111596207A CN202010278260.0A CN202010278260A CN111596207A CN 111596207 A CN111596207 A CN 111596207A CN 202010278260 A CN202010278260 A CN 202010278260A CN 111596207 A CN111596207 A CN 111596207A
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- 238000013507 mapping Methods 0.000 title claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 230000006698 induction Effects 0.000 claims abstract description 21
- 239000006247 magnetic powder Substances 0.000 claims abstract description 20
- 238000010422 painting Methods 0.000 claims abstract description 11
- 238000002474 experimental method Methods 0.000 claims description 7
- 230000003028 elevating effect Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 5
- 230000005284 excitation Effects 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 description 6
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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Abstract
The invention belongs to the technical field of brushless direct current motor detection, and discloses a motor mechanical characteristic curve mapping device which comprises a workbench, a motor characteristic curve experimental device and a drawing device, wherein the experimental device comprises a brushless direct current motor, a magnetic powder brake, a magnetic induction rotary disc, a magnetic induction sensor, a TX program board and a torque control knob, wherein the magnetic powder brake, the magnetic induction rotary disc, the magnetic induction sensor, the TX program board and the torque control knob are connected through a coupler; the drawing device comprises a transmission screw rod, paper pressing devices arranged at two ends of the transmission screw rod, an auxiliary screw rod sleeved on the transmission screw rod and a painting brush lifting device arranged on the auxiliary screw rod; the device can adjust the total resistance value through the torque control knob, the voltage is measured by the TX program board and converted into the excitation current, and the excitation current is in direct proportion to the torque of the magnetic powder brake, so that the torque is adjusted, and the numerical value is more accurate, more universal and more convincing; and on the other hand, a drawing device is added, and data are reflected in time after the numerical relation is obtained, so that the torque measurement efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of brushless direct current motor detection, and particularly relates to a device for mapping a mechanical characteristic curve of a motor.
Background
The brushless direct current motor is composed of a motor main body and a driver, and is a typical electromechanical integration product. The stator winding of the motor is mostly made into a three-phase symmetrical star connection method which is very similar to a three-phase asynchronous motor; the rotor of the motor is adhered with a magnetized permanent magnet, and a position sensor is arranged in the motor for detecting the polarity of the rotor of the motor; the driver is composed of power electronic devices, integrated circuits and the like, and has the functions of receiving starting, stopping and braking signals of the motor so as to control the starting, stopping and braking of the motor; receiving a position sensor signal and a positive and negative rotation signal, and controlling the on-off of each power tube of the inverter bridge to generate continuous torque; receiving a speed instruction and a speed feedback signal for controlling and adjusting the rotating speed; as well as providing protection and display, etc.
Referring to Chinese patent No. CN207924097U, a DC motor characteristic test device comprises an industrial personal computer, a program control power supply, a data acquisition card and a motor controller; the industrial personal computer is connected with the magnetic powder brake through the program control power supply and is respectively connected with the motor controller, the infrared thermometer, the torque sensor and the flexible sensor through the data acquisition card; the motor controller is also connected with a direct current motor, and the magnetic powder brake is connected with the direct current motor through a torque sensor.
According to the characteristic side-looking equipment of the direct current motor, the torque value of the magnetic powder brake is obtained by controlling the sensor, and the torque value is evaluated and analyzed in combination, so that the traditional mode can only measure data of individual special values, and cannot change the torque to obtain more accurate, more general and more convincing values; meanwhile, the numerical value cannot be visually recorded at the first time after being obtained, the timeliness of the measured value cannot be guaranteed, and the efficiency cannot be improved.
Disclosure of Invention
The invention aims to provide a mapping device for mechanical characteristic curves of a motor, which is used for solving the problems that the conventional direct current motor characteristic side-looking equipment mostly controls a sensor to obtain a torque value of a magnetic powder brake, and carries out evaluation and analysis by combining the torque value, the traditional mode can only measure data of individual special values, and cannot change the torque to obtain more accurate, more general and more persuasive values; meanwhile, the numerical value cannot be visually recorded at the first time after being obtained, the timeliness of the measured value cannot be guaranteed, and the efficiency cannot be improved.
The technical scheme adopted by the invention for solving the technical problem is that a motor mechanical characteristic curve mapping device is provided, which comprises a workbench, a motor characteristic curve experimental device and a motor characteristic curve drawing device, wherein the motor characteristic curve experimental device and the motor characteristic curve drawing device are arranged on the workbench, the motor characteristic curve experimental device comprises a brushless direct current motor, a magnetic powder brake connected with the brushless direct current motor through a coupler, a magnetic induction rotary disc arranged on the coupler, a magnetic induction sensor used for measuring the torque of the magnetic induction rotary disc, a TX program board electrically connected with the magnetic powder brake and a torque control knob electrically connected with the TX program board through a series resistor, and the magnetic induction sensor is electrically connected with the TX program board; motor characteristic curve drawing device is including being parallel arrangement drive screw on the workstation, arranging in the paper closing device, the cover at drive screw both ends are located drive screw just is reciprocating motion's supplementary lead screw and setting along drive screw axle center direction and is in be used for the painting brush elevating gear of drawing on the supplementary lead screw, drive screw one side be equipped with the driving motor that paper closing device electricity is connected.
Further preferably, the series resistance is three ten ohm resistances.
Further preferably, the motor characteristic curve experimental device further includes a motor switch for controlling the brushless dc motor.
Further preferably, a display screen is arranged on the surface of the TX program board.
Further preferably, the paper pressing device comprises a reset cylinder, a connecting rod and a pressing plate, wherein the reset cylinder is sleeved at two ends of the transmission screw rod, the connecting rod is connected with a piston of the reset cylinder, the pressing plate is arranged at the bottom of the connecting rod, and the reset cylinder is electrically connected with the driving motor.
Further preferably, painting brush elevating gear establishes including the cover establish on the supplementary lead screw and follow supplementary lead screw is reciprocating motion's removal portion, sets up electric lift rod in the removal portion, arranges in the painting brush of electric lift rod one side and arrange in supplementary lead screw top is used for supporting electric lift rod's guide bar.
Further preferably, the two ends of the auxiliary screw rod are provided with supporting plates which are perpendicular to the transmission screw rod, and the guide rod penetrates through the supporting plates.
Further preferably, a support frame is erected at the bottom of the transmission screw rod.
Further preferably, a first motor flexibly connected with the transmission screw through a coupler is arranged at the end part of the transmission screw, and the first motor is electrically connected with the TX program board.
Further preferably, a second motor flexibly connected with the auxiliary screw through a coupler is arranged at the end of the auxiliary screw, and the second motor is electrically connected with the TX program board.
The invention has the beneficial effects that:
the device can adjust the total resistance value connected into a circuit through the torque control knob, further measure the voltage through an analog quantity voltage measuring port of a TX program board and convert the voltage into the exciting current, and the exciting current is in direct proportion to the torque of the magnetic powder brake, so that the torque is adjusted to achieve the measurement of the torque, and meanwhile, the numerical value is more accurate, more universal and more convincing; on the other hand, a drawing device is added, and the drawing device can be controlled by a TX program board to reflect data in time after the numerical relation is obtained, so that the torque measurement efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of an overall structure of a mechanical characteristic curve mapping device of an electric machine according to an embodiment of the present invention;
FIG. 2 is a schematic side view of a drawing apparatus in a device for mapping mechanical characteristics of an electric machine according to an embodiment of the present invention;
FIG. 3 is a schematic side view of a drawing apparatus in an apparatus for mapping mechanical characteristics of an electric machine according to an embodiment of the present invention;
FIG. 4 is a schematic side view of an experimental apparatus in a mechanical characteristic curve mapping apparatus of a motor according to an embodiment of the present invention;
fig. 5 is a drawing effect diagram of a device for mapping a mechanical characteristic curve of a motor according to an embodiment of the present invention.
In the figure: 1-workbench, 2-motor characteristic curve experimental device, 21-brushless direct current motor, 22-coupler, 23-magnetic powder brake, 24-magnetic induction rotary table, 25-magnetic induction sensor, 26-TX program board, 261-display screen, 27-series resistor, 28-torque control knob, 29-motor switch, 3-motor characteristic curve drawing device, 31-transmission screw, 311-first motor, 32-paper pressing device, 321-reset cylinder, 322-connecting rod, 323-pressing plate, 33-auxiliary screw, 331-supporting plate, 332-second motor, 34-painting brush lifting device, 341-moving part, 342-electric lifting rod, 343-painting brush, 344-guide rod, 35-driving motor, 4-a support frame.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention and/or the technical solutions in the prior art, the following description will explain specific embodiments of the present invention with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort. In addition, the term "orientation" merely indicates a relative positional relationship between the respective members, not an absolute positional relationship.
Referring to fig. 1, 2, 3 and 4, the device for mapping a mechanical characteristic curve of a motor of the present embodiment includes a workbench 1, a motor characteristic curve experiment device 2 disposed on the workbench 1, and a motor characteristic curve plotting device 3, where the motor characteristic curve experiment device 2 includes a brushless dc motor 21, a magnetic powder brake 23 connected to the brushless dc motor 21 through a coupling 22, a magnetic induction rotary table 24 disposed on the coupling 22, a magnetic induction sensor 25 for measuring a torque of the magnetic induction rotary table 24, a TX program board 26 electrically connected to the magnetic powder brake 23, and a torque control knob 28 electrically connected to the TX program board 26 through a series resistor 27, and the magnetic induction sensor 25 is electrically connected to the TX program board 26; motor characteristic curve drawing device 3 is including being parallel arrangement drive screw 31 on the workstation 1, arranging in the paper closing device 32 at drive screw 31 both ends, the cover is located drive screw 31 just is reciprocating motion's supplementary lead screw 33 and setting along drive screw 31 axle center direction and is in be used for the painting brush elevating gear 34 of drawing on the supplementary lead screw 33, drive screw 31 one side be equipped with driving motor 35 that paper closing device 32 electricity is connected.
The motor characteristic curve experiment device 2 further includes a motor switch 29 for controlling the brushless dc motor 21.
In the motor characteristic curve experimental device 2, a brushless direct current motor 21, a magnetic powder brake 23 connected with the brushless direct current motor 21 and a magnetic induction rotary table 24 are coaxially connected (a coupler 22), and a magnetic induction sensor 25 is arranged on one side of the magnetic induction rotary table 24 and used for detecting the torque of the brushless direct current motor 21; the exciting current of the magnetic powder brake 23 is regulated and controlled by a TX program board 26 electrically connected to the magnetic powder brake 23, where the exciting current of the magnetic powder brake 23 and the transmission torque of the brushless dc motor 21 are in a direct proportion trend (coaxial), and the variation of the torque value can be controlled by regulating and controlling the exciting current; the torque control knob 28 may be a potentiometer, and changes a total resistance value of series connection (in this embodiment, the total resistance value is thirty ohms, that is, three ten-ohm resistors are connected in series) connected in the circuit to adjust a voltage (the measurement port is connected in parallel to two ends of the series resistor 27) measured by an analog quantity voltage measurement port of the TX program board 26, so as to obtain an excitation current in the circuit through data conversion; the torque value here can be displayed by a display screen 261 provided on the TX program board 26.
In the motor characteristic curve experimental device 2, the brushless direct current motor 21 is turned on by the motor switch 29, the motor rotates in a no-load mode, the excitation current of the magnetic powder brake 23 is regulated and controlled through the torque control knob 28 to increase the load of the motor, and real-time data of the load can be displayed on the TX program board 26.
It should be noted that the TX program board 26 is provided with a data acquisition module and a matrix module, and transmits acquired data (torque) to the motor characteristic curve drawing device 3 through the matrix module, that is, the drawing is realized by the first motor 311 flexibly connected to the drive screw 31 through a coupling provided at the end of the drive screw 31, the second motor 332 flexibly connected to the auxiliary screw 33 through a coupling provided at the end of the auxiliary screw 33, and the electric lift rod 342 (the first motor 311, the second motor 332, and the electric lift rod 342 of the present device are all electrically connected to the TX program board 26).
As a preferred embodiment, the paper pressing device 32 includes a reset cylinder 321 sleeved at two ends of the transmission screw 31, a connecting rod 322 connected to a piston of the reset cylinder 321, and a pressing plate 323 disposed at the bottom of the connecting rod 322, wherein the reset cylinder 321 is electrically connected to the driving motor 35.
The number of the reset cylinders 321 can be four, the drawing is manually placed at the bottom of the transmission screw 31, the drive motor 35 is turned on to control the piston rod of the reset cylinder 321 to move, and the pressing plate 323 is further pushed to abut against the four corners of the drawing, so that the drawing is pressed and fixed; after the drawing is finished, the piston rod of the reset cylinder 321 is controlled to reset by the driving motor 35.
As a preferred embodiment, the brush lifting device 34 includes a moving portion 341 sleeved on the auxiliary lead screw 33 and reciprocating along the auxiliary lead screw 33, an electric lifting rod 342 disposed on the moving portion 341, a brush 343 disposed on one side of the electric lifting rod 342, and a guide rod 344 disposed above the auxiliary lead screw 33 for supporting the electric lifting rod 342; supporting plates 331 perpendicular to the driving screw 31 are disposed at two ends of the auxiliary screw 33, and the guide rods 344 are disposed on the supporting plates 331 in a penetrating manner.
A through hole with an internal thread matched with the external thread of the auxiliary screw 33 is formed in the middle of the moving part 341, and the upper part of the through hole is fixedly connected with the electric lifting rod 342; the motorized lift pins 342 may be controlled by a motor electrically connected to the TX program board; a clamping part connected with the lifting plate can be arranged on one side of the electric lifting rod 342, and the painting brush 343 is fixed on the clamping part; after the TX program board 26 finishes collecting the torque data, the drawing is manually placed at the bottom of the transmission screw 31, and the driving motor 35 is turned on to control the reset cylinder 321 to fix the drawing; then, the TX program board 26 controls the first motor 311 to axially rotate the transmission screw 31 (the bottoms of the two ends of the transmission screw 31 are connected with a moving block sleeved on the transmission screw 31 and can be the same as the moving part 341), so as to move the auxiliary screw 33 to the position of the brush 343 on the Y axis; then, the second motor 332 is controlled by the TX program board 26 to axially rotate the auxiliary lead screw 33, so as to move the moving part 341 to the position of the brush 343 on the X axis; finally, the electric lifting rod 342 is controlled to enable the painting brush 343 to contact the drawing; the first motor 311 and the second motor 332 are then simultaneously controlled by the TX program board 26 to adjust the position of the brush 343 in the X and Y axes to achieve a plot.
Particularly, a support frame 4 is erected at the bottom of the transmission screw 31, and the distance between the transmission screw 31 and the workbench 1 can be lifted, so that the paintbrush 343 can move conveniently.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (10)
1. The utility model provides a mechanical characteristic curve mapping device of motor which characterized in that: the test device comprises a workbench (1), a motor characteristic curve experiment device (2) and a motor characteristic curve drawing device (3), wherein the motor characteristic curve experiment device (2) and the motor characteristic curve drawing device (3) are arranged on the workbench (1), the motor characteristic curve experiment device (2) comprises a brushless direct current motor (21), a magnetic powder brake (23) connected with the brushless direct current motor (21) through a coupler (22), a magnetic induction rotary disc (24) arranged on the coupler (22), a magnetic induction sensor (25) used for measuring the torque of the magnetic induction rotary disc (24), a TX program board (26) electrically connected with the magnetic powder brake (23) and a torque control knob (28) electrically connected with the TX program board (26) through a series resistor (27), and the magnetic induction sensor (25) is electrically connected with the TX program board (26); motor characteristic curve drawing device (3) are including being parallel arrangement drive screw (31) on workstation (1), arrange in the paper closing device (32), the cover at drive screw (31) both ends are located drive screw (31) and follow drive screw (31) axle center direction and be reciprocating motion's supplementary lead screw (33) and set up be used for drawing brush elevating gear (34) on supplementary lead screw (33), drive screw (31) one side be equipped with driving motor (35) that paper closing device (32) electricity is connected.
2. A device for mapping the mechanical characteristics of an electrical machine according to claim 1, characterized in that: the series resistor (27) is three ten ohm resistors.
3. A device for mapping the mechanical characteristics of an electrical machine according to claim 2, characterized in that: the motor characteristic curve experiment device (2) further comprises a motor switch (29) used for controlling the brushless direct current motor (21).
4. A device for mapping the mechanical characteristics of an electrical machine according to claim 3, characterized in that: and a display screen (261) is arranged on the surface of the TX program board (26).
5. A device for mapping the mechanical characteristics of an electrical machine according to claim 1, characterized in that: the paper pressing device (32) comprises a reset cylinder (321) arranged at two ends of the transmission screw rod (31) in a sleeved mode, a connecting rod (322) connected with a piston of the reset cylinder (321) and a pressing plate (323) arranged at the bottom of the connecting rod (322), and the reset cylinder (321) is electrically connected with the driving motor (35).
6. A device for mapping the mechanical characteristics of an electrical machine according to claim 1, characterized in that: the painting brush lifting device (34) comprises a moving part (341) which is sleeved on the auxiliary lead screw (33) and moves along the auxiliary lead screw (33), an electric lifting rod (342) arranged on the moving part (341), a painting brush (343) arranged on one side of the electric lifting rod (342) and a guide rod (344) arranged above the auxiliary lead screw (33) and used for supporting the electric lifting rod (342).
7. A device for mapping the mechanical characteristics of an electrical machine according to claim 6, characterized in that: the two ends of the auxiliary screw rod (33) are provided with supporting plates (331) which are perpendicular to the transmission screw rod (31), and the guide rod (344) penetrates through the supporting plates (331).
8. A device for mapping the mechanical characteristics of an electrical machine according to claim 1, characterized in that: and a support frame (4) is erected at the bottom of the transmission screw rod (31).
9. A device for mapping the mechanical characteristics of an electrical machine according to claim 1, characterized in that: the end part of the transmission lead screw (31) is provided with a first motor (311) flexibly connected with the transmission lead screw (31) through a coupler, and the first motor (311) is electrically connected with the TX program board (26).
10. A device for mapping the mechanical characteristics of an electrical machine according to claim 1, characterized in that: and a second motor (332) flexibly connected with the auxiliary lead screw (33) through a coupler is arranged at the end part of the auxiliary lead screw (33), and the second motor (332) is electrically connected with the TX program board (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010278260.0A CN111596207A (en) | 2020-04-10 | 2020-04-10 | Motor mechanical characteristic curve mapping device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010278260.0A CN111596207A (en) | 2020-04-10 | 2020-04-10 | Motor mechanical characteristic curve mapping device |
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| CN111596207A true CN111596207A (en) | 2020-08-28 |
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| CN202010278260.0A Pending CN111596207A (en) | 2020-04-10 | 2020-04-10 | Motor mechanical characteristic curve mapping device |
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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 |
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Application publication date: 20200828 |