WO2022041006A1

WO2022041006A1 - Motor and vibration detection system and method thereof

Info

Publication number: WO2022041006A1
Application number: PCT/CN2020/111519
Authority: WO
Inventors: Ji Li; Hong Wei Wang; Zhu NIU; Zhi Min Chen; Bo Qian YANG; Bo WEN
Original assignee: Siemens Aktiengesellschaft; Siemens Ltd., China
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2022-03-03

Abstract

A motor includes a motor body (1); and at least one reflection unit (2), the at least one reflection unit (2) is installed on the motor body (1) so that when the motor body (1) vibrates all the reflection units (2) vibrate accordingly, each reflection unit (2) has three mutually perpendicular mirrors (21) so that parallel reflection of incident light on the mirrors (21) is achieved. By detecting the reflected light after the incident light is parallel reflected, vibration information of the motor can be obtained, instead of using a vibration sensor to collect vibration data and carry out detection according to the vibration data in the prior art, the technical problem of low accuracy of vibration detection data collected by the vibration sensor in the prior art is solved. A motor vibration detection system and method thereof is related.

Description

MOTOR AND VIBRATION DETECTION SYSTEM AND METHOD THEREOF

FIELD

The present disclosure relates to motor design technologies, and more particularly, to a motor and vibration detection system and method thereof.

BACKGROUND

The vibration detection of the motor is widely used in the field of industrial detection. By detecting the vibration of the motor in the running state, the running condition of the motor can be diagnosed according to the vibration of the motor. For example, whether the rotor of the motor can rotate smoothly may be determined according to whether the frequency or amplitude of the vibration is uniform. In the prior art, vibration detection of the motor is performed according to vibration detection data, such as a vibration frequency and amplitude, collected by an attached vibration sensor. However, the accuracy of data collected by the vibration sensor for vibration detection is low, and the vibration sensor is expensive.

Those skilled in the art are also committed to finding a scheme for vibration detection of the motor, so as to solve the technical problem of low accuracy of vibration detection data collected by the vibration sensor in the prior art.

SUMMARY

According to examples of the present disclosure, a motor and vibration detection system and method thereof is provided to resolve the problem that the accuracy of vibration detection data collected by the vibration sensor is low.

The motor provided by examples of the present disclosure includes: a motor body; and at least one reflection unit, the at least one reflection unit is installed on the motor body so that when the motor body vibrates all the reflection units vibrate accordingly, each reflection unit has three mutually perpendicular mirrors so that parallel reflection of incident light on the mirrors is achieved.

In the examples, a structure of the motor is provided. The motor comprises the motor body and the at least one reflection unit. The at least one reflection unit is used for parallel reflection of the light irradiated on the motor body. When the motor body is in the running state, vibration will occur. Since the reflection unit is installed on the motor body, if the motor body vibrates, it will drive the reflection unit to vibrate, and then the parallel reflected light of the incident light will also change accordingly. According to the change of the parallel reflected light, the vibration of the motor can be reflected, and the vibration condition of the motor can be obtained through the detection of the parallel reflected light When the motor vibrates, the reflective parallel light detection method is used instead of the vibration sensor detection method in the prior art, thus the technical problem of low accuracy of vibration detection data collected by the vibration sensor in the prior art can be solved.

In an example, wherein the at least one reflection unit includes multiple reflection units, and the plurality of reflection units are arrayed in a sheet structure along the first direction and the second direction.

In the example, a sheet structure formed by a plurality of reflection unit arrays is provided, and the sheet structure can expand the area of receiving incident light, so that the incident light can be more easily irradiated on the reflection unit.

In an example, wherein the at least one reflection unit is installed on the top of the motor body and is located on an extension line passing through the center of gravity of the motor body and along the gravity direction.

In the example, an installation position of the reflection unit on the motor body is provided. Because the vibration of the motor originates from the rotation of a rotor of the motor, when the rotor rotates, it will be affected by its own gravity. Therefore, the vibration of the motor body passing through the center of gravity and along the extension line along the gravity direction will be the most obvious. The reflection unit installed on the extension line can better follow the vibration of the motor body, and more accurately reflect the vibration situation.

The motor vibration detection system provided by examples of the present disclosure includes: a motor mentioned above; a laser transceiver, the laser transceiver includes: a laser generator, the laser generator is constructed to emit a laser beam; a laser incidence angle adjusting device, on which the laser generator is installed, the laser incidence angle adjusting device can rotate along a first degree of freedom and a second degree of freedom to adjust a direction of a laser beam emitted by the laser generator, so that the laser beam can irradiate the mirror of the reflection unit, and then parallel reflection of the laser beam is achieved and a reflected beam is obtained; a laser receiver , connected to the laser incidence angle adjusting device, the laser receiver can rotate along the first degree of freedom and the second degree of freedom through the laser incidence angle adjusting device so as to face the reflected beam, and the laser receiver is constructed to receive the reflected beam; a detection module, the detection module is constructed to detect a vibration state of the motor according to the reflected beam received by the laser receiver.

In the example, a motor vibration detection system is provided. In addition to the motor requiring vibration detection, the motor vibration detection system further includes a device or module that can emit the laser beam and receive the reflected beam, and the motor vibration is detected according to the reflected beam, so the whole process of the motor vibration detection can be achieved.

In an example, wherein the laser receiver has a reflected beam receiving area; a laser beam emitting port of the laser generator is located in the reflected beam receiving area.

In the example, a position relationship between the laser receiver and the laser transmitter is provided. Although the reflection unit on the motor can reflect the laser beam in parallel, the position of the reflected beam incident on the laser receiver is uncertain. Therefore, by adopting the position relationship between the laser receiver and the laser transmitter in the embodiment, the laser receiver can still receive the reflected beam under the condition that the position of the reflected beam is uncertain.

In an example, the method further includes: a transport device, the transport device can transport the laser transceiver to any position of a preset area, wherein the preset area is an area range that the laser transceiver can be transported to by the transport device.

In the example, an embodiment with the transport device is provided. The coverage range of the laser beam emitted by the laser transceiver device is limited, and the distance between the motor and the laser transceiver device may be far, so it is necessary to transport the laser transceiver device to a suitable distance from the motor through the transport device, and the laser beam emitted by the laser transceiver device can irradiate the motor.

In an example, wherein the laser transceiver is suspended by the transport device; a detection area capable of placing the motor is arranged below the laser transceiver, and the laser beam emitted by the laser transceiver in the preset area can cover the whole range of the detection area, and the motor is placed in the range of the detection area.

In the example, a motor vibration detection system with the detection area is provided. By placing the motor in the detection area, it can ensure that the laser beam emitted by the laser transceiver device after being transported by the transport device can irradiate the motor.

In an example, the method further comprises: a scanning and positioning module, connected with the transport device, the scanning and positioning module is constructed to scan the motor within the detection area, and to generate position information after positioning a scanned motor, so that the transport device can transport the laser transceiver to a position where the laser beam can irradiate the motor according to the position information.

In the example, a scanning and positioning module is provided. The scanning and positioning module is used for scanning the detection area and positioning the motor in the detection area to obtain the position information, so that the transport device can know the position of the motor within the detection area, so as to transport the laser transceiver to a position where the laser beam can irradiate the motor.

The motor vibration detection method provided by examples of the present disclosure includes: emitting, by a laser transceiver, a laser beam to a motor mentioned above so that a reflected beam reflected in parallel by the reflection unit can be injected into the laser transceiver, wherein the motor is in a running state; receiving, by the laser transceiver, the reflected beam; and detecting, by a detection module, a vibration state of the motor according to the reflected beam.

In the example, a motor vibration detection method is provided.

In an example, before emitting, by the laser transceiver, a laser beam to the motor, the method further includes: scanning, by a scanning and positioning module, the motor within a detection area, and locating the scanned motor to obtain position information, wherein the detection area is used to place the motor, and the position information is a position of the motor in the detection area; sending, by a scanning and positioning module, the position information to a transport device; receiving, by the transport device, the position information, and transporting the laser transceiver to a position where the laser beam emitted by the laser transceiver can irradiate the motor according to the position information.

In the example, a specific method is provided to scan and locate the motor, and then transport the laser transceiver device to a position where the laser beam emitted by the laser transceiver device can irradiate the motor.

BRIEF DESCRIPTION OF THE DRAWINGS

For a better understanding of the present disclosure, reference should be made to the Detailed Description below, in conjunction with the following drawings in which like reference numerals refer to corresponding parts throughout the figures.

Figure 1 is a schematic diagram illustrating a reflection unit according to an example of the present disclosure.

Figure 2 is a schematic diagram illustrating a reflection unit array with sheet structure according to an example of the present disclosure.

Figure 3 is a schematic diagram illustrating a motor according to an example of the present disclosure.

Figure 4 is a schematic diagram illustrating the front view of the motor according to an example of the present disclosure.

Figure 5 is a schematic diagram illustrating a vibration detection system according to an example of the present disclosure.

Figure 5 is a schematic diagram illustrating a motor vibration detection system according to an example of the present disclosure.

Figure 6 is a schematic diagram illustrating a laser transceiver according to an example of the present disclosure.

Figure 7 is a schematic diagram illustrating a receiving area of the reflected beam according to an example of the present disclosure.

Figure 8 is a schematic diagram illustrating a motor vibration detection system according to an example of the present disclosure.

The reference numerals are as follows:

Reference numeral	Object
1	motor body
2	reflection unit
21	mirror
3	laser transceiver
31	laser generator
311	laser beam emitting port
32	laser incidence angle adjusting device
33	laser receiver
331	reflected beam receiving area
4	detection module
5	transport device
6	detection area
7	scanning and positioning module

DETAILED DESCRIPTION

The inventor of the present disclosure finds that in the prior art, vibration sensor is used to collect vibration data of the motor, and then the running state of the motor is diagnosed by detecting and analyzing the vibration data. For example, whether the rotor rotation of the motor is stable can be diagnosed according to whether the frequency or amplitude of the vibration of the motor is uniform. If the amplitude in the vibration data is too large or uneven, it indicates that the rotor may have problems in assembly or counterweight, etc., but the vibration of the motor is relatively weak, the vibration data collected by the vibration sensor has low accuracy. In addition, it is inconvenient to install the vibration sensor on the motor. Generally, it is necessary to install a support device on the motor and to punch holes on the support device. Furthermore, the vibration sensor also needs to be connected with a detection device for analyzing and diagnosing the vibration data. The detection device is usually in the form of a circuit board and needs to be connected with the vibration sensor through a wire. Therefore, the detection personnel need to reserve space and installation space for the detection device, which greatly limits the detection method using the vibration sensor.

Figure 1 is a schematic diagram illustrating a reflection unit according to an example of the present disclosure. Figure 2 is a schematic diagram illustrating a reflection unit array with sheet structure according to an example of the present disclosure. Figure 3 is a schematic diagram illustrating a motor according to an example of the present disclosure. As shown in figures 1 to 3, in some scenarios of the present disclosure, a motor is provided, which comprises a motor body 1 and a reflection unit 2. The motor body 1 is the motor to be detected, and at least one reflection unit 2 is installed on the motor body 1, so that the motor body 1 in the running state can be detected by the reflected light of the reflection unit 2. The reflection unit 2 has three mutually perpendicular mirrors 21. As shown in figure 1, the reflected light can be obtained in the way of parallel reflection no matter what angle the incident light shoots on the mirror 21 of the reflection unit 2. Since the reflection unit 2 is installed on the motor body 1, the reflection unit 2 will also vibrate with the vibration of the motor at the same frequency and amplitude, and then the reflected light will also change due to the vibration of the reflection unit 2. According to the change of the reflected light, the frequency and amplitude of the vibration of the motor body 1 can be calculated, and further detection can be carried out. How to calculate the frequency and amplitude through the change of the reflected light will be introduced in this paper, and the corresponding method will not be repeated here.

Reference will now be made in detail to examples, which are illustrated in the accompanying drawings. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure. Obviously, the described examples are only part of the embodiments of the disclosure, not all the embodiments. Based on the examples of the disclosure, all other examples obtained by ordinary technical personnel in the art without creative labor belong to the scope of protection of the application.

As shown in figures 1 to 3, in an example, the motor includes a motor body 1 and at least one reflection unit 2.

At least one reflection unit 2 is installed on the motor body 1 to enable all the reflection units 2 to vibrate when the motor body 1 vibrates. Each reflection unit 2 has three mutually perpendicular mirrors 21 to achieve parallel reflection of the incident light on the mirrors 21.

In the present disclosure, a motor capable of reflecting the incident light in parallel is provided. In the detection process, the motor body 1 should be in the running state, because only when the motor body 1 is in the running state, a vibration will occur, and the reflection unit 2 will also generate vibration accordingly. In order to achieve the detection better, the laser is preferred for the incident light, because a linear laser beam can be obtained by using the laser beam, and it is easier to control the output direction and receive the reflected beam of the laser beam. As shown in figure 1, the position of the reflection unit 2 is changed due to vibration. Although there still is the reflected beam, the displacement of the reflected beam has changed, and the vibration of the motor body 1 is reciprocating. Therefore, the reflected beam will be continuously switched between the two positions shown in figure 1, and the switching frequency is equivalent to the vibration frequency of the motor body 1, and the magnitude of the displacement can correspond to the vibration amplitude. That is, the change of the reflected light can reflect the vibration of the motor, so that the vibration of the motor can be obtained by detecting the reflected light. Through the detection of reflected light, the accuracy of the vibration sensor can be greatly improved, which is helpful to solve the technical problem that the accuracy of vibration detection data collected by the vibration sensor is low in the prior art.

As shown in figure 2, in an example, the at least one reflection unit 2 includes multiple reflection units 2, and the plurality of reflection units 2 are arrayed in a sheet structure along the first direction and the second direction.

In the present example, a sheet structure formed by an array of reflection units 2 is provided, the purpose of the sheet structure is to expand the range in which the incident light can be reflected so that the incident light can be more easily reflected in parallel through the reflection unit 2.

Figure 4 is a schematic diagram illustrating the front view of the motor according to an example of the present disclosure. As shown in figure 4, in the example, the at least one reflection unit 2 is installed on the top of the motor body 1 and is located on an extension line passing through the center of gravity of the motor body 1 and along the gravity direction.

In the example, the installation position of the reflection unit 2 is provided. On the one hand, the incident light will come in from above, because the motor is usually placed on the ground for detection, the generating device of the incident light will be suspended above the motor, and the reflection unit 2 is installed on the top of the motor body 1, which can reflect the incident light more easily. On the other hand, the position with the most violent vibration should be located at the position which is most affected by gravity. Therefore, the reflection unit 2 is preferably installed on the extension line along the gravity direction of the motor body 1, and the reflection unit 2 will also be affected by the vibration to the greatest extent, so that the reflected light changes most obviously, and the detection results will be more accurate.

Figure 5 is a schematic diagram illustrating a motor vibration detection system according to an example of the present disclosure. Figure 6 is a schematic diagram illustrating a laser transceiver according to an example of the present disclosure. Figure 7 is a schematic diagram illustrating a receiving area of the reflected beam according to an example of the present disclosure. Figure 8 is a schematic diagram illustrating a motor vibration detection system according to an example of the present disclosure. As shown in figures 6 to 8, in an example, the motor vibration detection system comprises the motor, a laser transceiver 3 and a detection module 4.

The laser transceiver 3 includes a laser generator 31, a laser incidence angle adjusting device 32 and a laser receiver 33.

The laser generator 31 is constructed to emit a laser beam.

The laser generator 31 is installed on the laser incidence angle adjusting device 32. The laser incidence angle adjusting device 32 can rotate along the first degree of freedom and the second degree of freedom to adjust the direction of a laser beam emitted by the laser generator 31, so that the laser beam can irradiate the mirror 21 of the reflection unit 2, and then the parallel reflection of the laser beam can be achieved and a reflected beam can be obtained.

The laser receiver 33 is connected to the laser incidence angle adjusting device 32, and the laser receiver 33 can rotate along the first degree of freedom and the second degree of freedom through the laser incidence angle adjusting device 32 so as to face the reflected beam, and the laser receiver 33 is constructed to receive the reflected beam.

The detection module 4 is constructed to detect a vibration state of the motor according to the reflected beam received by the laser receiver 33.

In the example, a specific implementation of the motor vibration detection system is provided. The motor is the detected target, and the laser transceiver 3 first emits the laser beam to the reflection unit 2 of the motor, and then the reflected beam is reflected by the reflection unit 2 in parallel. The reflected beam will return to the laser receiver 33, and the displacement between the reflected beam and the laser beam will be very small, so the laser receiver 33 should be in the same position as the laser generator 31. The specific structure will be described in more detail later, and will not be repeated here. It should be pointed out that the laser incidence angle adjusting device 32 has the steering adjustment of the first degree of freedom and the second degree of freedom, which can be adjusted according to the relative position between the laser generator 31 and the reflection unit 2, so that the laser beam can irradiate the mirror 21 of the reflection unit 2, and then the parallel reflection of the laser beam can be achieved and the reflected beam can be obtained. The detection module 4 will obtain the vibration frequency and vibration amplitude of the motor according to the displacement between the reflected beam and the laser beam, and the change frequency of the displacement. H in figure 1 is the displacement.

As shown in figure 7, in one example, the laser receiver 33 has a reflected beam receiving area 331.

A laser beam emitting port 311 of the laser generator 31 is located in the reflected beam receiving area 331.

In the example, structures of a laser generator 31 and a laser receiver 33 are provided. The black spot in figure 7 is the output position of the laser beam, and the white spot is the incident position of the reflected beam. Although the reflection unit 2 can reflect the laser beam in parallel, the position where the reflected beam enters the laser receiver 33 and the output position of the laser beam are not fixed. The laser receiver 33 should have a reflected beam receiving area 331 so that the reflected beam can be received smoothly regardless of the position relationship between the reflected beam and the laser beam. The laser beam emitting port 311 of the laser generator 31 is located in the reflected beam receiving area 331, which can meet the design requirements for receiving the reflected beam smoothly.

In an example, the motor vibration detection system further includes a transport device 5.

The transport device 5 is connected with the laser transceiver 3 so that the transport device 5 can transport the laser transceiver 3 to any position of a preset area, wherein the preset area is an area range that the laser transceiver 3 can be transported to by the transport device 5.

In this example, a motor vibration detection system with a transport device 5 is provided. If the laser beam of the laser transceiver 3 cannot irradiate the reflection unit 2 of the motor in its coverage range, it is necessary to close the distance between the laser transceiver 3 and the motor so that the motor can be located in the coverage range of the laser beam emitted by the laser transceiver 3. The above purpose can be achieved by using the transport device 5. In a workshop and other scenarios, the motor may be placed at any position in the workshop. In the workshop, the transport device 5 can be composed of a track and a slide block. The transport device 5 may also be provided with a control device which may transport the laser transceiver 3 to any position in the workshop according to a control command. The specific structure and control method of the transport device 5 can be achieved by using existing or newly added technologies, which will not be repeated here.

In an example, the laser transceiver 3 is suspended by the transport device 5.

A detection area 6 capable of placing the motor is arranged below the laser transceiver 3, and the laser beam emitted by the laser transceiver 3 in the preset area can cover the whole range of the detection area 6, and the motor is placed in the range of the detection area 6.

In the example, a preset position relationship between the laser transceiver 3 and the motor is provided. The transport device 5 can transport the laser transceiver 3 to any position in the preset area. If the laser transceiver 3 is suspended by the transport device 5, and a detection area 6 is arranged under the laser transceiver 3, and the laser beam emitted by the laser transceiver 3 in the preset area can cover the whole range of the detection area 6, then it can be ensured that the laser beam emitted by the laser transceiver 3 can irradiate the reflection unit 2 of the motor. If there are multiple motors to be detected and the motors are all placed within the detection area 6, the laser beam emitted by the laser transceiver 3 can irradiate all the motors through the transport device 5.

In an example, the motor vibration detection system further includes a scanning and positioning module 7.

The scanning and positioning module 7 is connected with the transport device 5, the scanning and positioning module 7 is constructed to scan the motor within the detection area 6, and to generate position information after positioning a scanned motor, so that the transport device 5 can transport the laser transceiver 3 to a position where the laser beam can irradiate the motor according to the position information.

In this example, a motor vibration detection system with a scanning and positioning module 7 is provided. The scanning and positioning module 7 can scan and locate the motor in the detection area 6 first. Since the motors to be detected are all placed in the detection area 6, the scanning and positioning module 7 only needs to scan the detection area 6, and then position information is obtained by determining the position of the motor in the area 6. It should be pointed out that since the scanning range is only limited to the detection area 6, a position coordinate system can be established through the detection area 6, and the specific position of the motor under the position coordinate system can be used as the position information. As shown in figure 8, for example, the specific position is (x-28, y-32) , which means that the displacement distance in the X direction is 28 and the displacement distance in the Y direction is 32 in the position coordinate system, and these are taken as the position information. The transport device 5 can find the position of the motor in the position coordinate system according to the position information (x-28, y-32) , and then the transport device 5 transports the laser transceiver 3 to the position where the laser beam can irradiate the motor. It should be pointed out that the projection of the laser beam emitted by the laser transceiver 3 on the detection area 6 is a circle, so it can be determined whether the laser beam can cover the reflection unit 2 as long as the effective radius of the projection is known. In addition, if there are multiple motors in the detection area 6, the multiple motors can be detected one by one through the above method.

A motor vibration detection method is further provided according to an example of the present disclosure, the motor vibration detection method can include the following processes:

A laser transceiver 3 emits a laser beam to the motor so that the reflected beam reflected in parallel by the reflection unit 2 can be injected into the laser transceiver 3, wherein the motor is in a running state.

The laser transceiver 3 receives the reflected beam.

The detection module 4 detects the vibration state of the motor according to the reflected beam.

The motor vibration detection method in the example of the present disclosure can be implemented on the motor vibration detection system. For the content not disclosed in the example of the method, please refer to the corresponding description in above system example, and will not be repeated here.

In an example, before the laser transceiver 3 emits a laser beam to the motor, the method may further include the following processes:

After scanning the motor within the detection area 6, the scanning and positioning module 7 locates the scanned motor to obtain the position information, wherein the detection area 6 is used to place the motor, and the position information is the position of the motor in the detection area 6.

The scanning and positioning module 7 sends the position information to the transport device 5.

The transport device 5 receives the position information and transports the laser transceiver 3 to a position where the laser beam emitted by the laser transceiver 3 can irradiate the motor according to the position information.

In the present example, before detecting the motor vibration, a process is provided for transporting the laser beam emitted by the laser transceiver 3 to the position of the motor.

The foregoing description, for purpose of explanation, has been described with reference to specific examples. However, the illustrative discussions above are not intended to be exhaustive or to limit the present disclosure to the precise forms disclosed. Many modifications and variations are possible in view of the above teachings. The examples were chosen and described in order to best explain the principles of the present disclosure and its practical applications, to thereby enable others skilled in the art to best utilize the present disclosure and various examples with various modifications as are suited to the particular use contemplated.

Claims

A motor, characterized in that, comprises:

a motor body (1) ; and

at least one reflection unit (2) , the at least one reflection unit (2) is installed on the motor body (1) so that when the motor body (1) vibrates all the reflection units (2) vibrate accordingly, each reflection unit (2) has three mutually perpendicular mirrors (21) so that parallel reflection of incident light on the mirrors (21) is achieved.
The motor according to claim 1, characterized in that, wherein the at least one reflection unit (2) comprises multiple reflection units (2) , and the plurality of reflection units (2) are arrayed in a sheet structure along the first direction and the second direction.
The motor according to claim 1 or 2, characterized in that, wherein the at least one reflection unit (2) is installed on the top of the motor body (1) and is located on an extension line passing through the center of gravity of the motor body (1) and along the gravity direction.
A motor vibration detection system, characterized in that, comprises:

a motor according to any one of claims 1 to 3;

a laser transceiver (3) , the laser transceiver (3) comprises:

a laser generator (31) , the laser generator (31) is constructed to emit a laser beam;

a laser incidence angle adjusting device (32) , on which the laser generator (31) is installed, the laser incidence angle adjusting device (32) can rotate along a first degree of freedom and a second degree of freedom to adjust a direction of a laser beam emitted by the laser generator (31) , so that the laser beam can irradiate the mirror (21) of the reflection unit (2) , and then parallel reflection of the laser beam is achieved and a reflected beam is obtained;

a laser receiver (33) , connected to the laser incidence angle adjusting device (32) , the laser receiver (33) can rotate along the first degree of freedom and the second degree of freedom through the laser incidence angle adjusting device (32) so as to face the reflected beam, and the laser receiver (33) is constructed to receive the reflected beam;

a detection module (4) , the detection module (4) is constructed to detect a vibration state of the motor according to the reflected beam received by the laser receiver (33) .
The motor vibration detection system according to claim 4, characterized in that, wherein the laser receiver (33) has a reflected beam receiving area (331) ;

a laser beam emitting port (311) of the laser generator (31) is located in the reflected beam receiving area (331) .
The motor vibration detection system according to claim 5, characterized in that, further comprising: a transport device (5) , the transport device (5) can transport the laser transceiver (3) to any position of a preset area, wherein the preset area is an area range that the laser transceiver (3) can be transported to by the transport device (5) .
The motor vibration detection system according to claim 6, characterized in that, wherein the laser transceiver (3) is suspended by the transport device (5) ;

a detection area (6) capable of placing the motor is arranged below the laser transceiver (3) , and the laser beam emitted by the laser transceiver (3) in the preset area can cover the whole range of the detection area (6) , and the motor is placed in the range of the detection area (6) .
The motor vibration detection system according to claim 7, characterized in that, further comprising:

a scanning and positioning module (7) , connected with the transport device (5) , the scanning and positioning module (7) is constructed to scan the motor within the detection area (6) , and to generate position information after positioning a scanned motor, so that the transport device (5) can transport the laser transceiver (3) to a position where the laser beam can irradiate the motor according to the position information.
A motor vibration detection method, characterized in that, comprising:

emitting, by a laser transceiver (3) , a laser beam to a motor according to any one of the claims 1 to 3 so that a reflected beam reflected in parallel by the reflection unit (2) can be injected into the laser transceiver (3) , wherein the motor is in a running state;

receiving, by the laser transceiver (3) , the reflected beam; and

detecting, by a detection module (4) , a vibration state of the motor according to the reflected beam.
The motor vibration detection method according to claim 9, characterized in that, before emitting, by the laser transceiver (3) , a laser beam to the motor, the method further comprises:

scanning, by a scanning and positioning module (7) , the motor within a detection area (6) , and locating the scanned motor to obtain position information, wherein the detection area (6) is used to place the motor, and the position information is a position of the motor in the detection area (6) ;

sending, by a scanning and positioning module (7) , the position information to a transport device (5) ;

receiving, by the transport device (5) , the position information, and transporting the laser transceiver (3) to a position where the laser beam emitted by the laser transceiver (3) can irradiate the motor according to the position information.