CN114705283A - Vibration measuring system for small motor - Google Patents
Vibration measuring system for small motor Download PDFInfo
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- CN114705283A CN114705283A CN202210374721.3A CN202210374721A CN114705283A CN 114705283 A CN114705283 A CN 114705283A CN 202210374721 A CN202210374721 A CN 202210374721A CN 114705283 A CN114705283 A CN 114705283A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
Abstract
The invention provides a vibration measurement system for a small motor, and relates to the technical field of motor testing. The system comprises a transmission shaft vibration measuring module and a machine body vibration measuring module, wherein the transmission shaft vibration measuring module is positioned on one side of a motor transmission shaft to realize the measurement of the vibration of the motor transmission shaft, and the machine body measuring module is connected with the ground below and sleeved on a motor to be measured and a motor supporting module to realize the measurement of the vibration of the machine body of the motor. The motor vibrates to drive the reflection of light piece and the vibration of reflection of light sleeve, and then laser receiving device generates vibration signal according to the light position received, and the treater is handled vibration signal and is obtained motor vibration data. Only reflection of light piece, reflection of light sleeve are installed on being surveyed the motor, and reflection of light piece and reflection of light telescopic quality are lighter, consequently can reduce check out test set by a wide margin to motor vibration's influence, have effectively reduced measuring error, promote and detect the rate of accuracy.
Description
Technical Field
The invention relates to the technical field of motor testing, in particular to a vibration measuring system of a small motor.
Background
With the development of various industrial technologies such as electric vehicles, robots, lathe machining and the like, the current market has increasingly greater requirements on the motor, and meanwhile, the requirements on the quality and the safety of the motor are increasingly strict, so that the motor test measurement is gradually valued by various enterprises. The motor test or detection link is very important in the development of new motors and in the mass production and repair of the motors. The abnormal vibration and abnormal sound generated by the motor are mainly caused by both mechanical and electromagnetic aspects, and the mechanical structure of parts such as a stator, a rotor, a transmission shaft and the like of the motor can be changed due to the manufacturing process and long-time operation of the motor, so that the motor generates mechanical vibration. Compared with other motor signals, the vibration signal generated during the operation of the motor not only has relatively low measurement difficulty, but also contains rich motor operation state information, so that the motor vibration signal is widely applied to a motor measurement system as a judgment basis.
When measuring the vibration of the motor, the operating state of the motor is generally measured by an acceleration sensor or a torque sensor, and the vibration data of the motor is further processed. However, when the vibration condition of the motor is measured by using the method, a plurality of sensors are required to be arranged on the motor body and the transmission shaft, the mass of the sensors cannot be ignored, and the vibration condition of the motor can be influenced by the sensors on the motor body and the transmission shaft due to the small vibration amplitude of the motor, so that the error of vibration data is further increased.
Disclosure of Invention
In view of the above, the present invention provides a vibration measuring system for a small-sized motor to solve the above problems.
In view of the above object, the present invention provides a vibration measuring system for a small-sized motor, comprising: the device comprises a transmission shaft vibration measuring module and a machine body vibration measuring module; the transmission shaft vibration measuring module comprises a first shell, a reflecting sleeve, a first laser emitting device, a second laser emitting device, a first laser receiving device and a second laser receiving device; the reflecting sleeve is sleeved on a transmission shaft of the motor and is inserted into the first shell together; the first laser emitting device is connected to the inner wall of the first shell positioned at one horizontal radial end of the light reflecting sleeve, and the first laser receiving device is connected to the inner side wall of the first shell on the same side as the first laser emitting device; the second laser emitting device is connected to the inner wall of the first shell at one vertical radial end of the light reflecting sleeve, and the second laser receiving device is connected to the inner side wall of the first shell at the same side as the second laser emitting device; the machine body vibration measuring module comprises a second shell, a third laser transmitting device, a third laser receiving device and a reflecting piece, the second shell is covered above the motor, the third laser transmitting device is connected to the inner wall of one side of the second shell, the third laser receiving device is connected to the inner wall of the other side of the second shell, and the reflecting piece is fixedly connected to the top of the motor.
Compared with the prior art, the invention has the beneficial effects that:
1. compared with the traditional high-precision speed sensor method, the optical measurement method taking the laser emitting device as the core is adopted, and the detection device added on the motor has smaller mass, thereby effectively reducing the error and improving the measurement precision.
2. The invention adopts a three-section design structure for the vibration measurement of the motor body and the transmission shaft, and only the light reflecting sheet and the light reflecting sleeve are connected to the motor, thereby effectively reducing the influence of different modules on the vibration data of the motor body and the transmission shaft.
3. The invention has simple operation, and the operator can carry out omnibearing motor vibration measurement only by adjusting the machine body vibration measurement module and the transmission shaft vibration measurement module to the specified positions after the tested motor is fixed.
Furthermore, the system also comprises a processor which is respectively and electrically connected with the first laser receiving device, the second laser receiving device and the third laser receiving device; and analyzing and processing the vibration signal received by the laser receiving device through the processor, and further acquiring the running state of the motor.
Furthermore, the system also comprises a support table and a moving module, wherein the moving module comprises a support moving table and a lifting support; one end of the support moving platform is connected with the support platform in a sliding mode, the other end of the support moving platform is sleeved at one end of the lifting support, and the other end of the lifting support is fixedly connected with the first shell. Supporting bench and moving module play the effect of supporting and regulation space to first shell, through promoting the moving module, can make the moving module slide on supporting bench to adjust the position of first shell, be convenient for with first shell suit on reflection of light sleeve.
Furthermore, the mobile module also comprises a height coarse adjustment knob, a height fine adjustment knob, a horizontal coarse adjustment knob and a horizontal fine adjustment knob, wherein the height coarse adjustment knob and the height fine adjustment knob are respectively installed on the upper part of the support mobile station, and the horizontal coarse adjustment knob and the horizontal fine adjustment knob are respectively installed on the lower part of the support mobile station. Through each adjust knob, can adjust the horizontal position and the height of removal module and the transmission shaft vibration measurement module that links to each other to set up thick, thin adjust knob respectively, be convenient for adjust, and improved the regulation precision.
Furtherly, first shell includes casing, protecgulum and hou gai, and the casing is both ends open-ended cuboid structure, and protecgulum and hou gai can dismantle with the both ends mouth of casing respectively and be connected, and the protecgulum suit is on reflection of light sleeve, and the hou gai includes apron and connecting pipe, and the one end of connecting pipe is connected on the apron, and the through-hole has been seted up to hookup location on the apron, and the inside cover of connecting pipe is equipped with the calibration mirror, is carved with the scale mark on the calibration mirror. The calibration mirror is used for observing the position of the reflective sleeve, and the center of the scale mark is aligned with the center of the reflective sleeve, so that alignment can be realized, and the calibration mirror is simple and convenient.
Furthermore, the inner end of the shell is provided with a rib penetrating through the shell, and the rib is parallel to the edge of the shell. The convex edge is used for isolating the light path in the transmission shaft vibration measurement module, so that interference is reduced, and the measurement result is more accurate.
Furthermore, one end of the light reflecting sleeve is of an open structure, and the open end is connected with a limiting ring. The spacing ring not only prevents that the reflection of light sleeve from droing from the transmission shaft, can also block in external light gets into transmission shaft vibration measurement module, weakens external light's influence, guarantees that whole transmission shaft vibration measurement module seals as far as possible.
Further, this device still includes motor support module, and motor support module is the cuboid structure, and the motor is connected on motor support module.
Furthermore, the machine body vibration measurement module also comprises a second slide rail which is fixedly connected to the ground; the second shell comprises a top surface and two side surfaces, and the two side surfaces of the second shell are respectively connected with the second sliding rail in a sliding manner. The second housing is enabled to slide on the ground, facilitating housing of the second housing over the fixed motor and motor support module.
Drawings
Fig. 1 is a schematic view of a vibration measurement system of a small-sized motor according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a mobile module of a vibration measurement system of a small motor according to an embodiment of the present invention;
fig. 3 is a schematic view of a transmission shaft vibration measurement module of a vibration measurement system of a small-sized motor according to an embodiment of the present invention;
fig. 4 is a schematic view of the inside of a first housing of a vibration measuring system of a small-sized motor according to an embodiment of the present invention;
fig. 5 is a schematic diagram of the operation of a motor support module of the vibration measurement system for a small motor according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating the operation of a motor vibration measurement module of the vibration measurement system for a small motor according to an embodiment of the present invention;
fig. 7 is a schematic operation diagram of a vibration measurement system of a small-sized motor according to an embodiment of the present invention.
Description of the drawings are labeled: 1. a support table; 11. a first slide rail; 2. a moving module; 21. a lifting support; 22. a support moving stage; 23. a height coarse adjustment knob; 24. a height fine adjustment knob; 25. a horizontal coarse adjustment knob; 26. a fine horizontal adjustment knob; 3. a transmission shaft vibration measurement module; 31. a housing; 311. a rib; 32. a front cover; 33. a rear cover; 331. a wire hole; 34. a light reflecting sleeve; 341. a limiting ring; 35. a connecting pipe; 351. calibrating the mirror; 36. a first laser emitting device; 37. a first laser receiving device; 38. a second laser emitting device; 39. a second laser receiving device; 4. a motor support module; 5. a motor; 6. a fuselage vibration measurement module; 61. a second housing; 62. a third laser receiving device; 63. a third laser emitting device; 64. a reflective sheet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to specific embodiments below.
As shown in fig. 1, the vibration measurement system for a small motor provided by the present invention is composed of a transmission shaft vibration measurement module 3, a machine body vibration measurement module 6, a processor, a support table 1, a moving module 2, a motor support module 4, and the like. As shown in fig. 2, the supporting platform 1 is a rectangular parallelepiped structure and is fixedly installed on the ground, and two first sliding rails 11 parallel to the edges of the supporting platform 1 are disposed on the upper surface. The moving module 2 is composed of a support moving table 22, a lifting support 21, a height coarse adjustment knob 23, a height fine adjustment knob 24, a horizontal coarse adjustment knob 25, a horizontal fine adjustment knob 26 and the like. Lifting support 21 is hollow cuboid structure, and lifting support 21's upper end fixedly connected with square platform has seted up four screws on the square platform, and transmission shaft vibration measurement module 3 passes through screw fixed connection on square platform.
The support mobile station 22 is composed of a first connecting block and a second connecting block, the first connecting block and the second connecting block are both of hollow cuboid structures, the first connecting block is placed vertically, the second connecting block is placed horizontally, one end of the first connecting block is connected to the center of the upper surface of the second connecting block, and the other end of the first connecting block is sleeved on the lifting support 21. The bottom surface of the second connecting block is of an open structure, four pulleys are connected inside the second connecting block, and the four pulleys are in pairwise parallel distribution and embedded on the first sliding rail 11. The pulley can slide along first slide rail 11, through promoting support mobile station 22, can make support mobile station 22 drive its device of connecting slide on a supporting bench 1, and supporting bench 1 and removal module 2 play support and position control effect to transmission shaft vibration measurement module 3 jointly.
The height coarse adjustment knob 23 and the height fine adjustment knob 24 are respectively installed on the side surface of the first connection block, and both the height coarse adjustment knob 23 and the height fine adjustment knob 24 can control the lifting support 21 to lift, but the precision is different. The height coarse adjustment knob 23 is arranged to rotate counterclockwise or clockwise once, the center line between the two first slide rails 11 is used as the x-axis direction, so that the lifting support 21 can ascend or descend 1cm along the z-axis direction (i.e. the vertical direction), and the height fine adjustment knob 24 can ascend or descend 1mm along the z-axis direction by rotating counterclockwise or clockwise once. The height adjusting knob is connected with the gear, the rack is connected inside the lifting support 21, and the height of the lifting support 21 is adjusted by the height adjusting knob through the matching of the gear and the rack.
The horizontal coarse adjusting knob 25 and the horizontal fine adjusting knob 26 are respectively installed on the side face of the second connecting block, the horizontal coarse adjusting knob 25 and the horizontal fine adjusting knob 26 are connected with one end of a worm through a gear, the worm is meshed with racks on pulleys at the bottom of the support moving table 22, two pulleys on the same sliding rail are fixed at opposite positions through fixing rods, bearing shafts penetrate through the axle centers of the two pulleys on different sliding rails, the fixing rods are parallel to the first sliding rail 11, racks perpendicular to the sliding rails are fixed at the center parts of the two fixing rods, the bearing shafts are perpendicular to the first sliding rail 11, two ends of each of the two bearing shafts are fixed on the inner wall of the support moving table 22, and the pulleys can move relative to the bearing shafts. When the horizontal adjusting knob rotates, the worm is driven to rotate through the gear, the worm rotates to drive the rack to move, and the pulley is connected to the first sliding rail 11 in a sliding mode, so that the support moving platform 22 moves perpendicular to the first sliding rail 11 through reaction force. The horizontal coarse adjustment knob 25 and the horizontal fine adjustment knob 26 can both make the support moving table 22 and the device connected above the support moving table move in the y-axis direction (i.e. in the horizontal direction perpendicular to the first slide rail 11) relative to the pulley and the first slide rail 11, and the precision of the two is different. The horizontal coarse adjusting knob 25 can make the support moving platform 22 and the parts above horizontally move 1cm in the positive and negative directions of the y axis every anticlockwise rotation or clockwise rotation for one circle, and the corresponding horizontal fine adjusting knob 26 can make the support moving platform 22 and the parts above horizontally move 1mm in the positive and negative directions of the y axis every anticlockwise rotation or clockwise rotation for one circle. So that the drive shaft vibration measuring module 3 can move in three directions of x, y and z to adjust the space position thereof and accurately measure the drive shaft of the motor 5.
As shown in fig. 3, the transmission shaft vibration measuring module 3 is composed of a first housing, a light reflecting sleeve 34, a first laser emitting device 36, a second laser emitting device 38, a first laser receiving device 37, a second laser receiving device 39, and the like. The first shell is composed of a shell 31, a front cover 32 and a rear cover 33, the shell 31 is a corner cutting cuboid structure with openings at two ends, a convex rib 311 penetrating through the shell 31 is arranged at the corner of the inner end of the shell 31, the convex rib 311 is parallel to the edge of the shell 31 and used for isolating an inner light path and separating each laser receiving device, and the influence of surrounding light on the laser receiving devices is reduced. Screw holes are respectively formed at two ends of the convex rib 311, four screw holes are correspondingly formed on the front cover 32 and the rear cover 33 respectively, and the front cover 32 and the rear cover 33 are fixedly connected to two ends of the shell 31 respectively through bolts.
The front cover 32 and the rear cover 33 are both corner cut rectangles, a round hole is arranged in the center of the front cover 32, and the diameter of the round hole is slightly larger than that of the light reflecting sleeve 34. One end of the light reflecting sleeve 34 is an open structure, the open end is connected with a limit ring 341, and the outer diameter of the limit ring 341 is larger than the diameter of the round hole formed on the front cover 32. The limiting ring 341 not only prevents the reflective sleeve 34 from falling off from the transmission shaft during operation, but also weakens the influence of external light, and ensures that the whole transmission shaft vibration measurement module 3 is sealed as much as possible. The light reflecting sleeve 34 is sleeved on the transmission shaft of the motor 5, and the light reflecting sleeve 34 extends into the first shell through a round hole on the front cover 32. The rear cover 33 includes a cover plate and a connection pipe 35, one end of the connection pipe 35 is fixedly connected to a central position of the cover plate, and a through hole is formed at a connection position on the cover plate to communicate the connection pipe 35 with the inside of the housing 31. Inside cover of connecting pipe 35 is equipped with calibration mirror 351, is carved with the cross scale mark on the calibration mirror 351, contains x axle direction and y axle direction, and the scale precision is the millimeter level. And a central mark point is arranged at the central position of the end surface of the light reflecting sleeve 34, when the position is adjusted, the position of the central mark point is observed through the calibration mirror 351, a proper adjusting knob is selected to adjust the horizontal position or the vertical position according to the scale position of the central mark point, and when the center of the cross scale mark is aligned with the central mark point, the alignment is finished. The reflective sleeve 34 is ensured to be located on the axis of the first housing, improving the accuracy of the measurement.
The first laser emitting device 36 is connected to the inner wall of the first housing located at one horizontal radial end (i.e. left or right) of the reflective sleeve 34, and the first laser receiving device 37 is connected to the inner side wall of the first housing on the same side as the first laser emitting device 36, so that the laser emitted by the first laser emitting device 36 is reflected by the reflective sleeve 34 and then received by the first laser receiving device 37. The second laser emitting device 38 is connected to the inner wall of the first housing at one vertical radial end (i.e. above or below) of the reflective sleeve 34, and the second laser receiving device 39 is connected to the inner side wall of the first housing at the same side as the second laser emitting device 38, so that the laser emitted by the second laser emitting device 38 is reflected by the reflective sleeve 34 and then received by the second laser receiving device 39. When the drive shaft of the motor 5 vibrates in the z-axis direction, the reflective sleeve 34 vibrates along with the drive shaft, the position of the reflective sleeve 34 in the z-axis direction changes, and accordingly the position of the laser received by the second laser receiving device 39 is shifted, so that the vibration state of the drive shaft in the z-axis direction is reflected. Similarly, the vibration state of the drive shaft in the y-axis direction can be reflected on the basis of the position of the laser beam received by the first laser receiving device 37.
In order to improve the accuracy of the measurement, as shown in fig. 4, two first laser emitting devices 36 and two second laser emitting devices 38 are symmetrically arranged, and two first laser receiving devices 37 and two second laser receiving devices 39 are correspondingly arranged. Two first laser emitting devices 36 are respectively connected right to the left and right of the circular hole of the front cover 32, two second laser emitting devices 38 are respectively connected right above and below the circular hole of the front cover 32, and the four laser emitting devices are circumferentially distributed around the center of the circular hole. First laser emission device 36 and second laser emission device 38 comprise by the movable table of cylindrical laser instrument and cuboid structure, and the movable table passes through screw fixed connection on the inner wall of first shell, and the laser instrument is connected on the movable table, and the laser instrument can rotate on the movable table, carries out the regulation of angle, has adjusted the position of locking laser instrument after the angle. The first shell around the first laser transmitter and the second laser transmitter is respectively provided with a wire hole 331 for connecting an external power supply through a wire and supplying power to the laser transmitter.
The first laser receiving device 37 and the second laser receiving device 39 are each a rectangular parallelepiped structural body, the two first laser receiving devices 37 are respectively mounted on the left side and the right side of the housing 31, and the two second laser receiving devices 39 are respectively mounted on the upper side and the lower side of the housing 31. The laser receiver is located at the center of the side of the housing 31 for receiving the laser reflected by the reflective sleeve 34.
As shown in fig. 5, the motor support module 4 is a rectangular parallelepiped structure and is used for supporting and fixing the motor 5 to be measured. The motor supporting module 4 is fixedly arranged on the ground, and the motor 5 is fixedly connected to the motor supporting module 4 through a screw.
As shown in fig. 6, the body vibration measuring module 6 is composed of a second housing 61, a third laser emitting device 63, a third laser receiving device 62, a reflector 64, a second slide rail, and the like. Install the second slide rail subaerial, the quantity of second slide rail is two, and the interval of two second slide rails equals the interval of second shell 61 both sides wall. The second housing 61 is composed of a top surface and two side surfaces, the top surface is of an arc-shaped structure, and the bottoms of the two side surfaces of the second housing 61 are respectively connected to a second slide rail in a sliding manner, so that the second housing 61 can slide along the second slide rail. A third laser transmitter 63 is attached to one side inner wall of the second housing 61, and a third laser receiver 62 is attached to the other side inner wall of the second housing 61. The reflector 64 is fixedly connected to the top of the motor 5, so that the third laser emitting device 63 emits laser to the reflector 64, and the laser is received by the third laser receiving device 62 after being reflected by the reflector 64. When the body of the motor 5 vibrates, the reflector 64 vibrates along with the body of the motor 5, so that the position of the laser received by the third laser receiving device 62 changes. In order to improve the accuracy of the measurement, two sets of the third laser emitting device 63, the third laser receiving device 62 and the reflector 64 are respectively provided. The third laser transmitter 63 has the same structure as the first and second laser transmitters 36 and 38, and the third laser receiver 62 has the same structure as the first and second laser receivers 37 and 39.
The processor is electrically connected to the first laser receiver 37, the second laser receiver 39, and the third laser receiver 62, respectively. The laser receiving device is sensitive to laser irradiated on the laser receiving device, and tiny deviation changes of laser irradiation points can be converted into data information and then analyzed and quantized by the processor, so that vibration data of a transmission shaft and a machine body of the motor 5 can be further obtained.
The outer layer of the motor support module 4, the inner layer of the second housing 61 and the inner layer of the transmission shaft vibration measurement module 3 are made of non-mirror opaque materials, such as cloth, wood and the like, so that the influence of complex ambient light on measurement precision and results can be reduced, and the measurement results are more reliable.
In the using process, as shown in fig. 7, the following steps are carried out:
s1, fixing the motor 5 on the motor support module 4, and sleeving the light reflecting sleeve 34 on a transmission shaft of the motor 5.
S2, the position of the transmission shaft vibration measurement module 3 is preliminarily adjusted through the coarse height adjusting knob 23 and the coarse horizontal adjusting knob 25, and the position of the transmission shaft vibration measurement module 3 is accurately adjusted through the calibration mirror 351, the fine height adjusting knob 24 and the fine horizontal adjusting knob 26, so that the center of the calibration mirror 351 is positioned on the extension line of the axis of the light reflecting sleeve 34.
S3, the supporting moving stage 22 is pushed to make the reflective sleeve 34 extend into the first housing until the distance between the stop ring 341 and the front cover 32 is about 1 to 2 mm.
S4, the second housing 61 is pushed, the second housing 61 is covered above the motor 5, and the third laser transmitter 63, the third laser receiver 62 and the reflector 64 are located on the same vertical plane.
And S5, sequentially starting the motor 5, the transmission shaft vibration measurement module 3 and the machine body vibration measurement module 6.
S6, when the motor 5 vibrates, the light reflecting sleeve 34 vibrates along with the transmission shaft of the motor 5, the light reflecting sheet 64 vibrates along with the machine body, the laser reflected to the corresponding laser receiving device from the light reflecting sleeve 34 or the light reflecting sheet 64 generates vibration signals, and the processor receives and processes the vibration signals to obtain the vibration data of the motor 5.
The embodiments of the invention are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (9)
1. A small-motor vibration measurement system, comprising: the device comprises a transmission shaft vibration measuring module and a machine body vibration measuring module;
the transmission shaft vibration measuring module comprises a first shell, a reflecting sleeve, a first laser emitting device, a second laser emitting device, a first laser receiving device and a second laser receiving device; the reflecting sleeve is sleeved on a transmission shaft of the motor and is inserted into the first shell together; the first laser emitting device is connected to the inner wall of the first shell positioned at one horizontal radial end of the light reflecting sleeve, and the first laser receiving device is connected to the inner side wall of the first shell on the same side as the first laser emitting device; the second laser emitting device is connected to the inner wall of the first shell at one vertical radial end of the light reflecting sleeve, and the second laser receiving device is connected to the inner side wall of the first shell at the same side as the second laser emitting device;
the machine body vibration measuring module comprises a second shell, a third laser transmitting device, a third laser receiving device and a reflecting piece, wherein the second shell covers the motor, the third laser transmitting device is connected to the inner wall of one side of the second shell, the third laser receiving device is connected to the inner wall of the other side of the second shell, and the reflecting piece is fixedly connected to the top of the motor.
2. The small-sized motor vibration measuring system according to claim 1, further comprising a processor electrically connected to the first laser receiving device, the second laser receiving device and the third laser receiving device, respectively.
3. The small-sized motor vibration measuring system according to claim 1, further comprising a support table and a moving module, the moving module comprising a support moving table and a lifting support; one end of the support moving platform is connected with the support platform in a sliding mode, the other end of the support moving platform is sleeved at one end of the lifting support, and the other end of the lifting support is fixedly connected with the first shell.
4. The small-sized motor vibration measuring system according to claim 3, wherein the moving module further comprises a height coarse adjustment knob, a height fine adjustment knob, a horizontal coarse adjustment knob and a horizontal fine adjustment knob, the height coarse adjustment knob and the height fine adjustment knob are respectively installed on the upper portion of the stand moving stage, and the horizontal coarse adjustment knob and the horizontal fine adjustment knob are respectively installed on the lower portion of the stand moving stage.
5. The vibration measuring system of a small motor according to claim 1, wherein the first housing includes a housing, a front cover and a rear cover, the housing is a rectangular parallelepiped structure with two open ends, the front cover and the rear cover are detachably connected to two open ends of the housing, the front cover is sleeved on the reflective sleeve, the rear cover includes a cover plate and a connecting pipe, one end of the connecting pipe is connected to the cover plate, a through hole is provided at a connecting position on the cover plate, a calibration mirror is sleeved inside the connecting pipe, and scale marks are marked on the calibration mirror.
6. The vibration measuring system of a small-sized motor according to claim 5, wherein a rib penetrating the housing is provided at an inner corner of the housing, and the rib is parallel to an edge of the housing.
7. The vibration measuring system of a small-sized motor according to claim 1, wherein one end of the light reflecting sleeve has an open structure, and a limit ring is connected to the open end.
8. The vibration measuring system of a small-sized motor according to claim 1, further comprising a motor supporting module, wherein the motor supporting module has a rectangular structure, and the motor is connected to the motor supporting module.
9. The small-sized motor vibration measuring system according to claim 1, wherein the body vibration measuring module further comprises a second slide rail fixedly connected to the ground; the second shell comprises a top surface and two side surfaces, and the two side surfaces of the second shell are respectively connected with the second sliding rail in a sliding manner.
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| CN202210374721.3A CN114705283A (en) | 2022-04-11 | 2022-04-11 | Vibration measuring system for small motor |
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| CN202210374721.3A CN114705283A (en) | 2022-04-11 | 2022-04-11 | Vibration measuring system for small motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116202614A (en) * | 2023-03-03 | 2023-06-02 | 国网吉林省电力有限公司电力科学研究院 | Transformer vibration detection system and detection method |
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