CN213812681U - Motor static friction moment testing device - Google Patents
Motor static friction moment testing device Download PDFInfo
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- CN213812681U CN213812681U CN202021566673.0U CN202021566673U CN213812681U CN 213812681 U CN213812681 U CN 213812681U CN 202021566673 U CN202021566673 U CN 202021566673U CN 213812681 U CN213812681 U CN 213812681U
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Abstract
The utility model provides a motor static friction moment testing arrangement relates to motor test field, include: the base is horizontally arranged, and one end of the base is vertically provided with a fixed rack; the servo control motor is fixed at the upper end of the fixed rack, a driving shaft of the servo control motor is parallel to the base, and the servo control motor is connected with a servo motor driver; the first motor wheel is fixedly sleeved on a driving shaft of the servo control motor; the driving shaft of the motor to be measured is parallel to the base, and a pressure sensor is arranged between the motor to be measured and the base; the second motor wheel is fixedly sleeved on the driving shaft of the tested motor, is positioned right below the first motor wheel and is connected with the first motor wheel through a vertically arranged pull wire; the torque processing device is respectively connected with the servo motor driver and the pressure sensor; the device has simple structure, can efficiently test the static friction moment of the tested motor, and is beneficial to improving the tested motor.
Description
Technical Field
The utility model relates to a motor test technical field especially relates to a motor static friction moment testing arrangement.
Background
The static friction torque test of the motor is lacked in both factory detection and incoming material detection of a plurality of motors, and an efficient test method is not available; however, the static friction torque is also an important performance control index for the motor, the motor has quality risk when not detecting the static friction torque, the static friction torque of the motor is possibly overlarge in the using process, the bearing is heated seriously, the service life of the bearing is influenced, the performance of the motor is reduced, and the service life of the motor is shortened; many motors generate heat and vibrate greatly, the reason why the motor fails can not be found for a while, and the test of the static friction torque is also an important item for finding the reason.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model provides a motor static friction moment testing arrangement specifically includes:
the base is horizontally arranged, and one end of the base is vertically provided with a fixed rack;
the servo control motor is fixedly arranged at the upper end of the fixed rack, a driving shaft of the servo control motor is parallel to the base, and the servo control motor is connected with a servo motor driver;
the first motor wheel is fixedly sleeved on a driving shaft of the servo control motor;
the driving shaft of the motor to be measured is parallel to the base, and a pressure sensor is arranged between the motor to be measured and the base;
the second motor wheel is fixedly sleeved on the driving shaft of the tested motor, is positioned right below the first motor wheel and is connected with the first motor wheel through a vertically placed pull wire;
and the torque processing device is respectively connected with the servo motor driver and the pressure sensor, controls the servo motor driver and processes the pressure detection result of the pressure sensor to obtain the static friction torque test result of the tested motor.
Preferably, a signal line is provided for connecting the pressure sensor and the torque processing device.
Preferably, a control line is provided for connecting the torque processing device and the servo motor driver.
Preferably, the torque processing device comprises a processing chip and a display screen connected with the processing chip.
Preferably, the first motor wheel and the second motor wheel are the same motor wheel, and the wheel diameter of the motor wheel is 56 mm.
Preferably, annular concave platforms are arranged on two sides of a wheel disc of the motor wheel, an inclined surface is arranged on one side, close to the wheel disc, of each annular concave platform, and an angle of 34 degrees is formed between the two inclined surfaces.
Preferably, the center of the wheel disc of the motor wheel is provided with a rotating hole penetrating through the wheel disc, the motor wheel is fixedly sleeved on the driving shaft through the rotating hole, and a plurality of through holes penetrating through the wheel disc are formed around the rotating hole.
Preferably, the servo motor driver is arranged on the fixed rack and is positioned below the servo control motor.
Preferably, the torque processing device is disposed on the stationary gantry.
The technical scheme has the following advantages or beneficial effects:
1) the device has simple structure and high reliability, and can efficiently test and obtain the static friction torque of the tested motor;
2) the important problem that the motor to be tested exists can be helped to be found through testing, so that the structure of the motor is further corrected, and the quality of the motor is improved.
Drawings
Fig. 1 is a schematic structural diagram of a motor static friction torque testing device according to a preferred embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a motor wheel of the device for testing static friction torque of a motor according to a preferred embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The present invention is not limited to this embodiment, and other embodiments may also belong to the scope of the present invention as long as the gist of the present invention is satisfied.
The present invention provides, in a preferred embodiment, a motor static friction torque testing device based on the above problems existing in the prior art, as shown in fig. 1, specifically including:
the device comprises a base 1, wherein the base 1 is horizontally arranged, and one end of the base 1 is vertically provided with a fixed rack 2;
the servo control motor 3 is fixedly arranged at the upper end of the fixed rack 2, a driving shaft of the servo control motor 3 is parallel to the base, and the servo control motor 3 is connected with a servo motor driver 4;
a first motor wheel 31 fixedly sleeved on the driving shaft of the servo control motor 3;
the motor 7 to be measured is arranged on the base 1, the driving shaft of the motor 7 to be measured is parallel to the base 1, and a pressure sensor 6 is arranged between the motor 7 to be measured and the base 1;
the second motor wheel 71 is fixedly sleeved on the driving shaft of the tested motor 7, and the second motor wheel 71 is positioned right below the first motor wheel 31 and is connected with the first motor wheel 31 through a vertically placed pull wire 8;
and the torque processing device 5 is respectively connected with the servo motor driver 4 and the pressure sensor 6, and the torque processing device 5 controls the servo motor driver 4 and processes the pressure detection result of the pressure sensor 6 to obtain the static friction torque test result of the tested motor 7.
Specifically, in the present embodiment, the servo control motor 3 is fixed by the fixing stage 2, so that the servo control motor 3 is kept horizontally placed, and further, the cross section of the first motor wheel 31 fitted over the driving shaft of the servo control motor 3 is kept vertical to the horizontal direction; similarly, the pressure sensor 6 and the tested motor 7 are horizontally arranged, so that the cross section of the second motor wheel 71 sleeved on the driving shaft of the tested motor 7 is kept vertical to the horizontal direction; the first motor wheel 31 and the second motor wheel 71 are in a vertical relation and are connected with the first motor wheel 31 and the second motor wheel 71 through a vertically placed pull wire 8 so as to ensure the transmission of the rotating speed and the moment of the first motor wheel 31; the servo motor driver 4 drives the servo control motor 3 to stably operate in a preset state (torque 2Nm, rotating speed 20rpm), and the first motor wheel 31 transmits the preset state to the second motor wheel 71 through the pull wire 8, so that the tested motor 7 is driven to operate; the pressure sensor 6 measures the pressure given to the pressure sensor 6 by the tested motor 7 in real time and transmits a pressure signal to the torque processing device 5, and the pressure measured on the pressure sensor 6 is the minimum when the servo control motor 3 stably runs in a preset state; the torque processing device 5 calculates the static friction torque of the measured motor 7 according to a preset formula, wherein the preset formula is as follows: (G1-G2) × r, wherein G1 represents the pressure on the pressure sensor 6 before the operation of the servo motor 3, G2 represents the minimum pressure on the pressure sensor 6 when the servo motor 3 operates in the preset state, and r represents the radius of the second motor wheel 71, the static friction force of the motor 7 to be measured is obtained by the pressure difference on the pressure sensor 6 before and after the operation of the servo motor 3, and the static friction force of the motor 7 to be measured is multiplied by the radius of the second motor wheel 71 to obtain the static friction force moment of the motor 7 to be measured.
In the preferred embodiment of the present invention, a signal line is provided to connect the pressure sensor 6 and the torque processing device 5.
Specifically, the signal line is provided so that the pressure sensor 6 transmits the measured pressure output to the torque processing device 5 for subsequent calculation.
In the preferred embodiment of the present invention, the connection torque processing device 5 and the servo motor driver 4 are provided with a control line.
Specifically, in this embodiment, the torque processing device 5 sends a control signal to the servo motor driver 4 through the control line to control the operation of the servo control motor 3.
In the preferred embodiment of the present invention, the torque processing device 5 includes a processing chip and a display screen connected to the processing chip.
Specifically, in this embodiment, the processing chip is arranged to receive the pressure signal transmitted by the pressure sensor 6 and perform operation on the pressure signal, and the operation result is converted into a signal for display and displayed on the display screen.
In the preferred embodiment of the present invention, as shown in fig. 2, the first motor wheel 31 and the second motor wheel 71 are the same motor wheel, and the wheel diameter of the motor wheel is 56 mm.
Specifically, in this embodiment, the same motor wheel is used, so that the rotation speeds and moments of the first motor wheel 31 and the second motor wheel 71 are kept consistent, the difference is reduced, and the measurement accuracy is improved.
In the preferred embodiment of the present invention, as shown in fig. 2, the two sides of the wheel disc of the motor wheel are provided with annular concave platforms 11, one side of each annular concave platform 11 near the wheel disc is provided with an inclined plane 12, and an angle of 34 ° is formed between the two inclined planes 12.
Specifically, in this embodiment, by setting a fixed 34 ° angle between the two inclined surfaces 12, the pull wire 8 is ensured to be closely attached to the motor wheel, and the pull wire 8 is prevented from falling off.
In the preferred embodiment of the present invention, as shown in fig. 2, the center of the wheel disc of the motor wheel is provided with a rotating hole 13 through which the wheel disc runs, and the motor wheel is provided with a plurality of through holes 14 through which the wheel disc runs around the rotating hole, on the driving shaft through the fixing sleeve of the rotating hole 13.
Specifically, in this embodiment, the through hole 14 is provided to achieve the effects of reducing the weight of the motor wheel and reducing the rotational inertia, which is beneficial to servo control.
In the preferred embodiment of the present invention, the servo motor driver 4 is disposed on the stationary gantry 2 and located below the servo control motor 3.
In the preferred embodiment of the present invention, the torque processing device 5 is disposed on the stationary gantry 2.
The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, and it should be appreciated by those skilled in the art that various equivalent and obvious changes made from the description and drawings should be included within the scope of the present invention.
Claims (9)
1. The utility model provides a motor static friction moment testing arrangement which characterized in that specifically includes:
the base is horizontally arranged, and one end of the base is vertically provided with a fixed rack;
the servo control motor is fixedly arranged at the upper end of the fixed rack, a driving shaft of the servo control motor is parallel to the base, and the servo control motor is connected with a servo motor driver;
the first motor wheel is fixedly sleeved on a driving shaft of the servo control motor;
the driving shaft of the motor to be measured is parallel to the base, and a pressure sensor is arranged between the motor to be measured and the base;
the second motor wheel is fixedly sleeved on the driving shaft of the tested motor, is positioned right below the first motor wheel and is connected with the first motor wheel through a vertically placed pull wire;
and the torque processing device is respectively connected with the servo motor driver and the pressure sensor, controls the servo motor driver and processes the pressure detection result of the pressure sensor to obtain the static friction torque test result of the tested motor.
2. The motor static friction torque testing device according to claim 1, wherein a signal line is provided for connecting the pressure sensor and the torque processing device.
3. The motor static friction torque testing device according to claim 1, wherein a control line is provided for connecting the torque processing device and the servo motor driver.
4. The motor static friction torque testing device according to claim 1, wherein the torque processing device comprises a processing chip and a display screen connected with the processing chip.
5. The motor static friction torque testing device according to claim 1, wherein the first motor wheel and the second motor wheel are the same motor wheel, and the wheel diameter of the motor wheel is 56 mm.
6. The device for testing the static friction torque of the motor as claimed in claim 5, wherein the two sides of the wheel disc of the motor wheel are provided with annular concave platforms, one side of each annular concave platform, which is close to the wheel disc, is provided with an inclined surface, and an angle of 34 degrees is formed between the two inclined surfaces.
7. The testing device for static friction torque of motor according to claim 6, wherein a rotation hole penetrating through said wheel disc is provided at the center of said wheel disc of said motor wheel, said motor wheel is fixedly mounted on said driving shaft through said rotation hole, and a plurality of through holes penetrating through said wheel disc are provided around said rotation hole.
8. The motor static friction torque testing device according to claim 1, wherein the servo motor driver is disposed on the fixed stage and below the servo control motor.
9. The motor static friction torque testing device according to claim 1, wherein the torque processing device is disposed on the stationary gantry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021566673.0U CN213812681U (en) | 2020-07-31 | 2020-07-31 | Motor static friction moment testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021566673.0U CN213812681U (en) | 2020-07-31 | 2020-07-31 | Motor static friction moment testing device |
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| Publication Number | Publication Date |
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| CN213812681U true CN213812681U (en) | 2021-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021566673.0U Active CN213812681U (en) | 2020-07-31 | 2020-07-31 | Motor static friction moment testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115900822A (en) * | 2022-11-25 | 2023-04-04 | 湖南电气职业技术学院 | Test system applied to servo motor |
-
2020
- 2020-07-31 CN CN202021566673.0U patent/CN213812681U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115900822A (en) * | 2022-11-25 | 2023-04-04 | 湖南电气职业技术学院 | Test system applied to servo motor |
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