CN221099935U - Motor torque testing device - Google Patents
Motor torque testing device Download PDFInfo
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- CN221099935U CN221099935U CN202323080237.9U CN202323080237U CN221099935U CN 221099935 U CN221099935 U CN 221099935U CN 202323080237 U CN202323080237 U CN 202323080237U CN 221099935 U CN221099935 U CN 221099935U
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- motor
- torque
- friction
- testing device
- friction wheel
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- 238000012360 testing method Methods 0.000 title claims abstract description 35
- 238000005259 measurement Methods 0.000 claims abstract description 18
- 230000008878 coupling Effects 0.000 claims abstract description 9
- 238000010168 coupling process Methods 0.000 claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 claims abstract description 9
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000004088 simulation Methods 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims 1
- 230000003313 weakening effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000007654 immersion Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000013095 identification testing Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model provides a motor torque testing device. The device mainly comprises a friction wheel, two semi-ring friction discs, a pressure adjusting assembly and a supporting frame. By rotating the pressure adjusting rod, pressure is elastically applied between the friction disc and the friction wheel through the spring, and torque under different loads is simulated. The values are measured and displayed by a rotational speed sensor, a torque sensor and a display device. The testing device is connected with a motor to be tested through an elastic coupling. Because the friction wheel adopts the semi-encircling structure with the friction disc, and two friction disc fixed positions are on two pairs of edges of a quadrilateral structure, the movability of the quadrilateral structure is utilized to provide enough vibration space for the friction wheel during rotation, adapt to and weaken the vibration generated during the test, improve the measurement accuracy, and prevent the motor from locking during the test. The motor torque testing device is light in structure, can be used for identifying the motor performance on site after the motor is disassembled, and is suitable for being used as a motor torque testing device.
Description
Technical Field
The utility model belongs to the field of ship electromechanical maintenance, and is mainly applied to maintenance and torque test of a ship motor, in particular to a motor torque test device.
Background
In the electromechanical maintenance of ships, especially in the middle or major repair of ships, motor equipment needs to be disassembled, and detection, identification and performance test are carried out on the motor equipment.
The existing motor torque measuring device is mainly aimed at small motors or motors which are newly shipped, the general torque is small, the radial vibration is small, and the radial vibration of the motor in the testing process is not needed to be considered, so that the friction disc can be directly in a rigid encircling type, and friction force is generated to the friction wheel to simulate load by directly fastening the friction disc.
In the ship maintenance process, the overhauling ship motor has large universal torque, large moment of inertia and larger radial vibration generated during operation due to the abrasion of the bearing. Currently, commonly used torque measuring devices are generally inadequate in resistance to radial shock and inadequate in torque to simulate a load. Because radial vibration is large in measurement, a measurement result is inaccurate, or a motor is locked in the measurement process, even equipment is damaged, and the measurement range cannot reach the technical index of the motor for the ship.
Disclosure of Invention
The utility model aims to solve the problems of insufficient radial vibration resistance and insufficient torque of a simulated load in the existing measuring equipment, and provides a motor torque testing device which is strong in radial vibration resistance, wide in torque measuring range and convenient and fast to use.
The utility model solves the technical problems by adopting the scheme that:
The motor torque testing device mainly comprises a load simulation unit, a measurement display unit and a motor connecting unit to be tested. The load simulation unit comprises a friction wheel, two semi-ring friction discs, a pressure adjusting assembly and a supporting frame. The pressure adjusting rod is rotated to compress the spring, the spring force is converted into pressure between the friction disc and the friction wheel, and the friction wheel rotates to generate torque under different loads on the torque shaft. The measurement display unit comprises a rotation speed sensor, a torque sensor and a display device and is used for measuring and displaying measured values. The motor connecting unit to be tested comprises a torque shaft, a bearing and an elastic coupling, and is used for connecting the torque testing device with the motor to be tested.
The positive effects are as follows:
Because the friction wheel and the friction disc adopt a semi-encircling structure, the friction wheel has a certain movement space in the vertical direction which is not covered by the friction disc, and when the friction wheel vibrates radially, the gap and the clamping degree between the friction wheel and the two friction discs can be changed along with the intensity of vibration due to the elasticity of the springs; meanwhile, the two friction discs are fixedly arranged on two opposite sides of a quadrilateral bracket, and enough moving space is provided for the rotation of the friction discs by utilizing the mobility of the quadrilateral structure; through the structure, the motor testing device adapts to and weakens vibration generated during motor testing in the vertical and horizontal radial directions, improves the measurement accuracy, and prevents the motor from locking in the testing. The pressure of the two friction discs to the friction wheel is changed by uniformly adjusting the pressure adjusting rod, so that the working conditions of the motor under different torques can be simulated. By measuring the rotation speed and the torque, a rotation speed-torque curve of the motor can be obtained, so that the technical state of the motor is determined. In addition, the testing device has the advantages of light structure, simple operation and low requirement on working environment, and can be used for identifying the motor performance in situ after the motor is disassembled when the ship motor is overhauled, so that the testing device is suitable for being used as a motor torque testing device.
Drawings
FIG. 1 is a schematic top view of the left side of an embodiment of the present utility model;
FIG. 2 is a schematic diagram of the present utility model;
fig. 3 is a schematic view of a right side plan view structure of an embodiment of the present utility model.
In the figure:
10. The load simulation unit comprises a friction wheel 11, a friction disc 12, a right bracket 14, a left bracket 15, a pressure regulating rod 16 and a spring assembly;
20. A measurement display unit, a torque sensor, a rotation speed sensor and a display device, wherein the torque sensor, the rotation speed sensor and the display device are respectively arranged in the measurement display unit, the torque sensor and the rotation speed sensor;
30. The motor connecting unit to be tested, 31, a torque shaft, 32, a bearing and 33, a coupling;
40. And a motor to be tested.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
Referring to fig. 1 and 2, the motor torque testing device mainly includes a load simulation unit 10, a measurement display unit 20, and a motor connection unit 30 to be tested.
The load simulation unit 10 comprises a friction wheel 11, two semi-annular friction discs 12, a pressure adjusting rod 15, a spring assembly 16, a left bracket 14 and a right bracket 13. The friction disk 12 adopts a semi-encircling structure, so that the friction disk has a certain movement space in the vertical direction which is not covered by the friction disk. Meanwhile, a quadrilateral structure is formed among the left bracket 14, the right bracket 13, the pressure adjusting rod 15 and the base; by virtue of the portability of the quadrilateral structure, sufficient movement space is provided for the friction wheel 11 when rotating.
Through the structure, the motor testing device can adapt to and weaken vibration generated during motor testing in the vertical and horizontal radial directions, improves the measurement accuracy, and prevents the motor from locking in the testing. By uniformly adjusting the pressure adjusting lever 15, the spring assembly 16 is compressed, and pressure is elastically applied between the friction wheel 11 and the friction disk 12, so that a uniformly variable friction force is converted, and the rotation of the friction wheel 11 is converted into a torque to be applied to the torque shaft 31.
Preferably, the oil immersion canvas is used as a friction medium, and the oil immersion canvas is fixed on the friction disk and the friction wheel and used for reducing the friction coefficient, so that the movable stroke of the pressure adjusting rod can be increased, and the torque variation precision is improved. The oil immersed canvas can be detached and replaced after being worn.
The device is designed according to the actual state of the motor in the maintenance process of the marine motor, and the torque adjusting range is large. The measurement display unit 20 is mounted on the torque shaft and includes a torque sensor 21, a rotation speed sensor 22 and a display device 23 for measuring and displaying the torque and rotation speed of the motor in real time.
The motor connection unit 30 to be tested includes a torque shaft 31, a bearing 32 and a coupling 33.
Preferably, deep groove bearings and elastic couplings are used to accommodate and counteract part of the motor vibration. Finally, torque is applied to the motor output shaft through the load simulation unit 10 and the motor connecting unit 30 to be tested to simulate the actual load.
The rotation speed-torque curve of the motor can be obtained by measuring a plurality of groups of torque and rotation speed values through the measurement display unit, and the detection of the motor is realized.
The working principle of the embodiment is as follows:
The motor torque test is simulated under the actual working condition by improving the friction mode of the friction wheel, the torque shaft and the friction wheel specification and generating a larger linear load, and then the motor is overhauled or replaced according to the test result.
The working procedure of this embodiment is:
The operation steps for detecting the marine motor in the embodiment are as follows:
1. And (3) fixing a motor: during actual operation, the motor is fixed on the detection table by bolts, and temporary machine legs can be welded according to the actual size of the motor. Because the elastic coupling is used, accurate positioning is not needed during installation, and the operation is simplified. After positioning, the motor is connected with the torque measuring device through an elastic coupling.
2. And (3) motor measurement: after the motor is started, the pressure regulating rod 15 and the compression spring are regulated, so that the torque applied to the motor is regulated, and the actual running state at the moment can be obtained by reading the numerical values on the torque sensor 21 and the rotating speed sensor 22. The pressure regulating rod 15 is adjusted to rotate, the torque is changed, and multiple groups of data measurement can be realized.
3. And (3) data arrangement: according to the measured multiple groups of actual data, a torque-rotating speed curve can be obtained, and the actual performance of the motor can be determined by comparing the torque-rotating speed curve with a theoretical curve, so that the detection of the motor is completed.
The characteristics of the present embodiment:
1. The device is designed according to the actual state of the motor in the maintenance process of the marine motor, has the characteristics of large torque adjusting range and capability of counteracting radial vibration. In the testing process, the linear variable torque can be applied to the motor only by adjusting the pressure adjusting rod, so that the motor is safe and reliable, and the measuring range is wide.
2. When the device is used, the operation is simple and convenient, and when the ship motor overhauls, after the motor is disassembled, the device can be utilized to identify the motor performance on site, so that the working efficiency is provided.
Claims (5)
1. A motor torque testing device, comprising:
The load simulation unit (10) comprises a friction wheel (11), two semi-ring friction discs (12), a pressure regulating rod (15) and a supporting frame; the pressure adjusting rod (15) is rotated to compress the spring assembly (16), the spring force of the spring is converted into pressure between the friction disc (12) and the friction wheel (11), and the friction wheel (11) is rotated to generate torque under different loads on the torque shaft (31);
a measurement display unit (20) including a torque sensor (21), a rotation speed sensor (22), and a display device (23) for measuring and displaying the measured values; and
The motor connecting unit (30) to be tested comprises a torque shaft (31), a bearing (32) and an elastic coupling (33) and is used for connecting the torque testing device with the motor to be tested.
2. A motor torque testing device according to claim 1, characterized in that the pressure adjusting lever (15) is provided with a spring assembly (16) for applying pressure elasticity between the friction wheel (11) and the friction disc (12), adapting and weakening radial vibration generated during motor testing, improving measuring accuracy and preventing motor locking during testing.
3. A motor torque testing device according to claim 1, characterized in that a quadrilateral structure is formed between the left support (14), the right support (13), the pressure regulating lever (15) and the base, and the movability of the quadrilateral structure is utilized for providing radial vibration space for the rotation of the friction wheel (11).
4. A motor torque testing device according to claim 1, characterized in that the torque shaft (31) and the motor shaft are connected by means of an elastic coupling (33) for counteracting errors in positioning the motor with the device and for reducing disturbances of the vibration to the measurement.
5. The motor torque testing device according to claim 1, wherein oil immersed canvas is fixed on the friction disc (12) and the friction wheel (11) for reducing friction coefficient, increasing the movable stroke of the pressure adjusting rod (15) and improving the torque variation precision.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323080237.9U CN221099935U (en) | 2023-11-15 | 2023-11-15 | Motor torque testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323080237.9U CN221099935U (en) | 2023-11-15 | 2023-11-15 | Motor torque testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221099935U true CN221099935U (en) | 2024-06-07 |
Family
ID=91307937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323080237.9U Active CN221099935U (en) | 2023-11-15 | 2023-11-15 | Motor torque testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221099935U (en) |
-
2023
- 2023-11-15 CN CN202323080237.9U patent/CN221099935U/en active Active
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