Motor steering detection device and method

Abstract

The present invention provides a motor steering detection device and method, which relates to the field of motor manufacturing technology, including a detection platform, a first pressure detection mechanism and a second pressure detection mechanism; during detection, the motor to be detected is first installed on the motor installation station of the detection platform, and then a power supply with a specified fixed phase sequence is used. When the motor to be detected is accelerated and / or decelerated, the first pressure detection mechanism and the second pressure detection mechanism are used to respectively detect the direction of the force acting on both sides of the axial direction of the motor to be detected on the detection platform, thereby obtaining the direction of the braking force. Since the direction of the braking force is opposite to the direction of rotation of the rotor, the actual rotation direction of the motor to be detected can be indirectly known, thereby obtaining the steering direction of the motor to be detected. Different from the principle of the prior art, the motor to be detected does not need to be modified, and there is no need to add auxiliary test tooling to the motor to be detected. At the same time, the purpose of accurately, quickly and efficiently detecting the steering direction of the motor to be detected can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of motor manufacturing, and in particular to a motor steering detection device and method. Background Art

[0002] In the actual use of the motor, the direction of rotation is a very important reference. There are three main solutions for the direction identification of finished motors:

[0003] Solution 1: Use a magnetic field detector to detect the motor's rotating magnetic leakage to determine the motor's direction of rotation;

[0004] Solution 2: Use the residual magnetism of the motor to generate electricity and determine the direction of the motor by detecting the phase sequence of the stator induced electricity.

[0005] Option three is to install additional tooling at the motor output shaft, such as sensors, encoders and other auxiliary devices, to detect the rotation direction of the motor output shaft.

[0006] The existing motor steering detection schemes have the following main defects: they all require manual judgment of the motor steering, the test methods are cumbersome, time-consuming and labor-intensive, and inefficient. Among them, Scheme 1 is not very accurate, is easily interfered by the on-site electromagnetic environment, has high requirements for the measurement points, and cannot be standardized; Scheme 1 and Scheme 2 both use the rotation of the motor rotor, the induced electric field and induced magnetic field generated by the stator, and detect the induced electric phase sequence or the direction of the induced magnetic field to judge the motor steering and use residual magnetism to generate electricity. First, it is necessary to ensure that the residual magnetism has a certain strength. Second, it is difficult to manually rotate a large motor. Third, due to the different electrical parameters such as the voltage level of the motor, special test equipment needs to be configured. The overall limitations are large and the applicability is poor.

[0007] Solution three is to install the test tooling, sensor, encoder, etc. on the motor shaft. In scenarios such as factories or assembly lines, the tooling is installed on the motor shaft. It has poor applicability when dealing with motors of various specifications. After disassembling the tooling, uncertain factors such as installation quality may lead to inaccurate measurements or safety hazards such as tooling detachment. Summary of the invention

[0008] The object of the present invention is to provide a motor steering detection device and method to alleviate the technical problems of low accuracy, low efficiency and poor applicability of existing motor steering detection solutions.

[0009] The motor steering detection device provided by the present invention comprises a detection platform, a first pressure detection mechanism and a second pressure detection mechanism;

[0010] A motor installation station is provided on the detection platform, and the motor installation station is used to install the motor to be detected. The first pressure detection mechanism is arranged on one side of the axial direction of the motor to be detected, and the second pressure detection mechanism is arranged on the other side of the axial direction of the motor to be detected. During the acceleration and / or deceleration process of the motor to be detected, the first pressure detection mechanism and the second pressure detection mechanism are respectively used to detect the pressure information of the motor at the corresponding installation position on the detection platform.

[0011] Furthermore, the first pressure detection mechanism includes one or more first pressure sensors, and the plurality of first pressure sensors are arranged at intervals on one side of the detection platform;

[0012] The second pressure detection mechanism includes one or more second pressure sensors, and the plurality of second pressure sensors are arranged at intervals on the other side of the detection platform.

[0013] Furthermore, the number of the first pressure sensor and the number of the second pressure sensor are both multiple;

[0014] A plurality of the first pressure sensors are arranged in a matrix structure on one side of the detection platform, and a plurality of the second pressure sensors are arranged in a matrix structure on the other side of the detection platform.

[0015] Furthermore, the motor steering detection device also includes a data processing mechanism;

[0016] The first pressure detection mechanism and the second pressure detection mechanism are respectively connected to the data processing mechanism.

[0017] Further, the data processing mechanism includes a controller;

[0018] The controller includes a data conditioning module and a central processing unit. The first pressure detection mechanism and the second pressure detection mechanism are electrically connected to the data conditioning module respectively, and the data conditioning module is electrically connected to the central processing unit.

[0019] Furthermore, the data processing mechanism includes a communication mechanism and a host computer;

[0020] The controller is communicatively connected with the host computer via the communication mechanism.

[0021] Furthermore, the data processing mechanism also includes an alarm mechanism, and the alarm mechanism (420) is electrically connected to the host computer.

[0022] Furthermore, the data processing mechanism also includes a power supply component, and the power supply component is respectively connected to the first pressure detection mechanism, the second pressure detection mechanism, the controller and the communication mechanism.

[0023] Furthermore, the detection platform includes a first tooling layer and a second tooling layer that are spaced apart, and the first pressure detection mechanism and the second pressure detection mechanism are both disposed between the first tooling layer and the second tooling layer.

[0024] The motor steering detection method provided by the present invention comprises the following steps:

[0025] Install the motor to be tested on the installation station of the testing platform;

[0026] During the acceleration and / or deceleration process of the motor to be detected, the first pressure detection mechanism and the second pressure detection mechanism are used to detect the pressure information of the corresponding installation positions of the first pressure detection mechanism and the second pressure detection mechanism on the detection platform respectively;

[0027] The rotation direction of the motor to be detected is determined according to the pressure information detected by the first pressure detection mechanism and the second pressure detection mechanism.

[0028] The motor steering detection device provided by the present invention includes a detection platform, a first pressure detection mechanism and a second pressure detection mechanism; a motor installation station is arranged on the detection platform, and the motor installation station is used to install the motor to be detected, the first pressure detection mechanism is arranged on one side of the axial direction of the motor to be detected, and the second pressure detection mechanism is arranged on the other side of the axial direction of the motor to be detected, and during the acceleration and / or deceleration process of the motor to be detected, the first pressure detection mechanism and the second pressure detection mechanism are respectively used to detect the pressure information of the motor at the corresponding installation position on the detection platform.

[0029] During the detection, the motor to be detected is first installed on the motor installation station of the detection platform, and then a power supply with a fixed phase sequence is used. When the motor to be detected is accelerated and / or decelerated, the stator magnetic field rotation frequency of the motor to be detected increases or decreases. The rotor maintains the original movement speed due to inertia, and the rotor passively cuts the magnetic flux lines, thereby generating an induced electromotive force and an induced current (the permanent magnet of the permanent magnet motor rotor has its own magnetic field), and interacts with the stator magnetic field to generate a braking torque, which is transmitted to the detection platform to form a braking force, thereby generating forces in different directions on both sides of the axial direction of the motor to be detected. The first pressure detection mechanism and the second pressure detection mechanism are used to respectively detect the directions of the forces on both sides of the axial direction of the motor to be detected on the detection platform, thereby obtaining the direction of the braking force. Since the direction of the braking force is opposite to the direction of rotation of the rotor, the actual rotation direction of the motor to be detected can be indirectly known, thereby obtaining the direction of the motor to be detected. Different from the principle of the prior art, the motor to be detected does not need to be modified, and there is no need to add auxiliary test tooling to the motor to be detected. At the same time, the purpose of accurately, quickly and efficiently detecting the direction of the motor to be detected can be achieved.

[0030] The motor steering detection method provided by the present invention comprises the following steps: installing the motor to be detected on an installation station of a detection platform; during the acceleration and / or deceleration process of the motor to be detected, using a first pressure detection mechanism and a second pressure detection mechanism to detect the pressure information of the corresponding installation positions of the first pressure detection mechanism and the second pressure detection mechanism on the detection platform respectively; and determining the steering direction of the motor to be detected based on the pressure information detected by the first pressure detection mechanism and the second pressure detection mechanism.

[0031] During actual testing, first, the motor to be tested is installed at the motor installation station of the testing platform, and then, a power supply with a specified fixed phase sequence is used to power the motor to be tested. When the motor to be tested accelerates and / or decelerates, the first pressure detection mechanism and the second pressure detection mechanism are used to respectively detect the directions of the forces acting on both sides of the axis of the motor to be tested on the testing platform, thereby obtaining the direction of the braking force. Since the direction of the braking force is opposite to the direction of rotation of the rotor, the actual rotation direction of the motor to be tested can be indirectly known, thereby obtaining the direction of rotation of the motor to be tested. The motor steering detection method provided by the present invention is different from the technical principle of the existing detection scheme, can effectively improve the shortcomings of the existing detection scheme, and can achieve the purpose of accurately, quickly and efficiently detecting the steering of the motor to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 A front view of a motor steering detection device provided by an embodiment of the present invention;

[0034] Figure 2 for Figure 1 The ZZ section view in;

[0035] Figure 3 A side view of a motor steering detection device provided by an embodiment of the present invention;

[0036] Figure 4 A top view of a motor steering detection device provided by an embodiment of the present invention;

[0037] Figure 5 This is a flow chart of a motor steering detection device provided in an embodiment of the present invention.

[0038] Icons: 100 - detection platform; 110 - first tooling layer; 120 - second tooling layer; 210 - first pressure sensor; 220 - second pressure sensor; 300 - controller; 310 - data conditioning module; 320 - central processing unit; 330 - communication mechanism; 340 - power supply assembly; 410 - host computer; 420 - alarm mechanism; 500 - motor to be detected. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] like Figures 1 to 5 As shown, the motor steering detection device provided in this embodiment includes a detection platform 100, a first pressure detection mechanism and a second pressure detection mechanism; a motor installation station is provided on the detection platform 100, and the motor installation station is used to install the motor 500 to be detected, the first pressure detection mechanism is arranged on one side of the axial direction of the motor 500 to be detected, and the second pressure detection mechanism is arranged on the other side of the axial direction of the motor 500 to be detected, and during the acceleration and / or deceleration process of the motor 500 to be detected, the first pressure detection mechanism and the second pressure detection mechanism are respectively used to detect the pressure information of the corresponding installation position on the detection platform 100.

[0041] The motor steering detection device provided in this embodiment, during detection, firstly installs the motor 500 to be detected on the motor installation station of the detection platform 100, and then uses a power supply with a specified fixed phase sequence. When the motor 500 to be detected is accelerated and / or decelerated, the rotation frequency of the stator magnetic field of the motor 500 to be detected increases or decreases, and the rotor maintains the original movement speed due to inertia, and the rotor passively cuts the magnetic flux lines, thereby generating an induced electromotive force and an induced current (the permanent magnet of the permanent magnet motor rotor has its own magnetic field), and interacts with the stator magnetic field to generate a braking torque, which is transmitted to the detection platform 100 to form a braking force, thereby generating forces in different directions on both sides of the axial direction of the motor 500 to be detected, and using the first pressure detection mechanism and the second pressure detection mechanism to respectively detect the directions of the forces acting on both sides of the axial direction of the motor 500 to be detected on the detection platform 100, thereby obtaining the direction of the braking force. Since the direction of the braking force is opposite to the direction of rotation of the rotor, the actual rotation direction of the motor 500 to be detected can be indirectly known, thereby obtaining the steering direction of the motor 500 to be detected. Different from the principle of the prior art, the motor 500 to be tested does not need to be modified, nor does it need to add auxiliary testing tooling to the motor 500 to be tested. At the same time, the purpose of accurately, quickly and efficiently detecting the steering of the motor 500 to be tested can be achieved.

[0042] It should be noted that, in this embodiment, the purpose of using a power supply with a specified fixed phase sequence is to enable the motor under test to meet the specified rotation direction.

[0043] like Figure 2 As shown, the motor installation station is about the center line of the detection platform 100 in the left and right directions. The first pressure detection mechanism can be set on the left side of the center line, and the second pressure detection mechanism is set on the right side of the center line. When the first pressure detection mechanism detects that the force is downward, the second pressure detection mechanism detects that the force is upward, and the braking force is obtained in the counterclockwise direction. According to the fact that the direction of the braking force is opposite to the direction of rotation of the rotor, it can be known that the actual rotation direction of the motor 500 to be detected is clockwise.

[0044] Furthermore, the first pressure detection mechanism includes one or more first pressure sensors 210, and the multiple first pressure sensors 210 are arranged at intervals on one side of the detection platform 100; the second pressure detection mechanism includes one or more second pressure sensors 220, and the multiple second pressure sensors 220 are arranged at intervals on the other side of the detection platform 100.

[0045] Specifically, when the first pressure detection mechanism includes a first pressure sensor 210, and the second pressure detection mechanism also includes a first pressure sensor 210, the first pressure sensor 210 is arranged on one side of the motor installation station on the detection platform 100 (i.e., one side of the axial direction of the motor 500 to be detected), and the second pressure sensor 220 is arranged on the other side of the motor installation station on the detection platform 100 (i.e., one side of the axial direction of the motor 500 to be detected). After the motor 500 to be detected is fixed on the motor installation station, the motor 500 to be detected is powered by a power supply with a specified fixed phase sequence, and the motor 500 to be detected is controlled to accelerate and / or decelerate. The stator magnetic field rotation frequency of the motor 500 to be detected increases or decreases, and the rotor maintains its original motion speed due to inertia, and the rotor passively cuts the magnetic flux lines, thereby generating an induction motor. The potential and the induced current (the permanent magnet of the permanent magnet motor rotor has its own magnetic field) interact with the stator magnetic field to generate a braking torque, which is transmitted to the detection platform 100 to form a braking force, thereby generating pressure or tension on both sides of the axial direction of the motor 500 to be detected. The first pressure sensor 210 and the second pressure sensor 220 are respectively used to detect the directions of the forces on both sides of the axial direction of the motor 500 to be detected, so as to obtain the direction of the braking force. Since the direction of the braking force is opposite to the direction of rotation of the rotor, the actual rotation direction of the motor 500 to be detected can be indirectly known. The first pressure sensor 210 and the second pressure sensor 220 can both be connected to the controller 300, and the controller 300 receives the pressure information detected by the first pressure sensor 210 and the second pressure sensor 220, and performs analysis, thereby realizing automatic identification of the motor direction.

[0046] Furthermore, there are multiple first pressure sensors 210 and multiple second pressure sensors 220; multiple first pressure sensors 210 are arranged in a matrix structure on one side of the detection platform 100, and multiple second pressure sensors 220 are arranged in a matrix structure on the other side of the detection platform 100.

[0047] It should be noted that the first pressure detection mechanism includes multiple first pressure sensors 210, and the second pressure detection mechanism also includes multiple first pressure sensors 210. Multiple pressure sensors can better detect pressure information at different positions, thereby avoiding situations where judgment cannot be made due to failure or malfunction of the pressure sensors.

[0048] like Figure 2 As shown, in this embodiment, the detection platform 100 is divided into four areas A, B, C, and D, which are area A, area B, area C, and area D, respectively, wherein area A and area C are one side of the axial direction of the motor 500 to be detected, and area B and area D are the other side of the axial direction of the motor 500 to be detected. Area A and area C are respectively provided with a plurality of first pressure sensors 210 arranged in a matrix, and area B and area D are respectively provided with a plurality of second pressure sensors 220 arranged in a matrix. By detecting multiple pressure information on both sides of the axial direction of the motor 500 to be detected, the pressure information detected by the multiple first pressure sensors 210 in area A and area C can be compared with each other. At the same time, the pressure information detected by the multiple second pressure sensors 220 in area B and area D can be compared with each other, and invalid pressure information (which may be caused by the failure of a certain pressure sensor or other factors causing the direction of individual pressure sensors to be different from the majority directions) can be eliminated, thereby improving the accuracy of direction determination.

[0049] Furthermore, the motor steering detection device also includes a data processing mechanism; the first pressure detection mechanism and the second pressure detection mechanism are respectively connected to the data processing mechanism.

[0050] Specifically, the data processing mechanism can receive pressure information from the first pressure detection mechanism and the second pressure detection mechanism, and process the pressure information to automatically determine the direction of the braking force. Since the direction of the braking force is opposite to the direction of rotation of the rotor, the actual rotation direction of the motor 500 to be detected can be indirectly known, thereby realizing automatic identification of the direction of rotation of the motor 500 to be detected.

[0051] Furthermore, the data processing mechanism includes a controller 300; the controller 300 includes a data conditioning module 310 and a central processing unit 320, the first pressure detection mechanism and the second pressure detection mechanism are electrically connected to the data conditioning module 310 respectively, and the data conditioning module 310 is electrically connected to the central processing unit 320.

[0052] Furthermore, the data processing mechanism includes a communication mechanism 330 and a host computer 410 ; the controller 300 is connected to the host computer 410 through the communication mechanism 330 .

[0053] Among them, the first pressure detection mechanism and the second pressure detection mechanism are respectively connected to the data conditioning module 310, the data conditioning module 310 is connected to the central processing unit 320, the central processing unit 320 is connected to the communication mechanism 330, and the communication mechanism 330 is communicatively connected to the data processing mechanism.

[0054] The central processor 320 can be connected to the host computer 410 through the communication mechanism 330. The host computer 410 can receive the data signal of the central processor 320. The software on the host computer 410 will plot the data into a curve in real time to determine the direction of the force, thereby obtaining the direction of the motor 500 to be tested.

[0055] It should be noted that the communication mechanism 330 can use wireless transmission technology (such as Bluetooth or wireless local area network) to communicate with the host computer 410 of the data processing mechanism, and can be implemented using relevant devices and structures in the existing technology, which will not be repeated here.

[0056] Preferably, the data processing mechanism also includes an alarm mechanism 420, which is electrically connected to the host computer 410. When the steering of the motor 500 to be tested is normal, it is displayed as qualified. When a steering abnormality is detected, the host computer 410 sends an instruction to the alarm mechanism 420, displays a warning signal, and saves the steering test record information of the motor 500 to be tested.

[0057] It should be noted that the alarm mechanism 420 may be a buzzer, a display light or other related device that can serve as a reminder.

[0058] In this embodiment, the first pressure sensor 210 and the second pressure sensor 220 collect pressure data in real time, and the data conditioning module 310 cooperates with the central processing unit 320 to convert the collected analog data into digital data, and then communicates with the host computer 410 through the communication mechanism 330 to display and draw curves in real time. At the same time, the software of the host computer 410 automatically determines the direction of the braking force. The direction of rotation of the rotor is opposite to the direction of the braking force, and the actual rotation direction of the motor 500 to be detected can be indirectly known, thereby realizing automatic identification of the direction of rotation of the motor 500 to be detected.

[0059] Furthermore, the data processing mechanism also includes a power supply component 340, and the power supply component 340 is respectively connected to the first pressure detection mechanism, the second pressure detection mechanism, the controller 300 and the communication mechanism 330.

[0060] The power supply assembly 340 is respectively connected to the first pressure detection mechanism, the second pressure detection mechanism, the data conditioning module 310, the central processing unit 320 and the communication mechanism 330, and is used to supply power to the above-mentioned mechanisms and modules to achieve their normal operation.

[0061] In this embodiment, the detection platform 100 includes a first tooling layer 110 and a second tooling layer 120 which are spaced apart from each other, and the first pressure detection mechanism and the second pressure detection mechanism are both disposed between the first tooling layer 110 and the second tooling layer 120 .

[0062] Among them, the first tooling layer 110 is on the top, the second tooling layer 120 is on the bottom, the motor installation station is set at the center of the first tooling layer 110, and multiple first pressure sensors 210 and second pressure sensors 220 are set between the first tooling layer 110 and the second tooling layer 120. When the motor 500 to be tested is tested, due to the acceleration or deceleration of the motor, different positions of the first tooling layer 110 and the second tooling layer 120 will generate forces in different directions. The first pressure sensor 210 and the second pressure sensor 220 are used for detection, and then the direction of the braking force is obtained through the force, and finally the actual rotation direction of the motor 500 to be tested is obtained.

[0063] It should be noted that the second tooling layer 120 can be fixedly connected to the ground, and it should be noted that it can also be fixedly connected to the movable platform of the assembly line. Among them, the two ends of the first pressure sensor 210 and the second pressure sensor 220 are respectively connected to the lower side of the first tooling layer 110 and the upper side of the second tooling layer 120. When the motor 500 to be detected is accelerating or decelerating, the braking force generated will make the first tooling layer 110 on both sides of the axial direction of the motor 500 to be detected have different movement trends, thereby generating an upward or downward force on the first pressure sensor 210 and the second pressure sensor 220, and then obtaining the direction of the braking force, and finally deducing the rotation direction of the motor 500 to be detected.

[0064] In this embodiment, by detecting the direction of the braking force, the first pressure sensor 210 and the second pressure sensor 220 collect pressure information in real time, and the collected analog data is converted into digital data after being processed by the data conditioning module 310 in cooperation with the central processing unit 320, and then communicated with the host computer 410 through the wireless communication mechanism 330. The host computer 410 displays and draws curves in real time, and the direction of the braking force is automatically determined by the software of the host computer 410. Since the direction of the braking force is opposite to the direction of rotation of the rotor, the actual rotation direction of the motor 500 to be detected can be indirectly known, thereby realizing the automatic identification of the direction of rotation of the motor 500 to be detected. The technology used in the present invention is different from the principle of the prior art, which can effectively improve the above shortcomings and achieve accuracy, speed and efficiency. It can be used in automated assembly lines to achieve wireless data transmission and automatic judgment. The motor 500 to be detected does not need to be modified, and there is no need to add auxiliary test tooling to the motor 500 to be detected.

[0065] The motor steering detection method provided in this embodiment specifically includes the following steps:

[0066] First, the motor 500 to be inspected is installed at the installation station of the inspection platform 100 .

[0067] Secondly, during the acceleration and / or deceleration of the motor 500 to be tested, the first pressure detection mechanism and the second pressure detection mechanism are respectively used to detect the pressure information of the corresponding installation positions of the first pressure detection mechanism and the second pressure detection mechanism on the testing platform 100.

[0068] Finally, the direction of rotation of the motor 500 to be detected is determined based on the pressure information detected by the first pressure detection mechanism and the second pressure detection mechanism.

[0069] The motor steering detection method provided in this embodiment, during actual detection, first, the motor 500 to be detected is installed at the motor installation station of the detection platform 100, and then, the motor 500 to be detected is powered by a power supply with a specified fixed phase sequence. When the motor 500 to be detected is accelerated and / or decelerated, the first pressure detection mechanism and the second pressure detection mechanism are used to respectively detect the directions of the forces acting on both sides of the axial direction of the motor 500 to be detected on the detection platform 100, thereby obtaining the direction of the braking force. Since the direction of the braking force is opposite to the direction of rotation of the rotor, the actual rotation direction of the motor 500 to be detected can be indirectly known, thereby obtaining the steering direction of the motor 500 to be detected. The motor steering detection method provided by the present invention is different from the technical principle of the existing detection scheme, and can effectively improve the shortcomings of the existing detection scheme, and can achieve the purpose of accurately, quickly and efficiently detecting the steering direction of the motor 500 to be detected. At the same time, the motor 500 to be detected does not need to be modified, and there is no need to add auxiliary test tooling.

[0070] It should be noted that the step of determining the direction of the motor 500 to be detected based on the pressure information detected by the first pressure detection mechanism and the second pressure detection mechanism also includes: converting the pressure information detected by the first pressure detection mechanism and the second pressure detection mechanism into digital data after being processed by the data conditioning module 310 in cooperation with the central processing unit 320, and then transmitting it to the host computer 410 through the wireless communication mechanism 330. The host computer 410 displays and draws the curve in real time, and at the same time, automatically determines the direction of the braking force through the software of the host computer 410. Since the direction of the braking force is opposite to the direction of rotation of the rotor, the actual rotation direction of the motor 500 to be detected can be indirectly known, thereby realizing the automatic identification of the direction of rotation of the motor 500 to be detected.

[0071] In view of the defects of the existing detection methods, the present application proposes a new motor steering detection device and method, which has the advantages of accuracy, high efficiency, wide application range, safety and reliability, no need for human intervention, and automatic identification.

[0072] To summarize, the motor steering detection device provided by the present invention comprises a detection platform 100, a first pressure detection mechanism and a second pressure detection mechanism; a motor installation station is provided on the detection platform 100, and the motor installation station is used to install the motor 500 to be detected, the first pressure detection mechanism is arranged on one side of the axial direction of the motor 500 to be detected, and the second pressure detection mechanism is arranged on the other side of the axial direction of the motor 500 to be detected, and during the acceleration and / or deceleration process of the motor 500 to be detected, the first pressure detection mechanism and the second pressure detection mechanism are respectively used to detect the pressure information of the corresponding installation position on the detection platform 100. During the inspection, the motor 500 to be inspected is first installed on the motor installation station of the inspection platform 100, and then a power supply with a specified fixed phase sequence is used. When the motor 500 to be inspected is accelerated and / or decelerated, the rotation frequency of the stator magnetic field of the motor 500 to be inspected increases or decreases, and the rotor maintains its original movement speed due to inertia. The rotor passively cuts the magnetic flux lines, thereby generating an induced electromotive force and an induced current (the permanent magnet of the permanent magnet motor rotor has its own magnetic field), and interacts with the stator magnetic field to generate a braking torque. The braking torque is transmitted to the inspection platform 100 to form a braking force, thereby generating forces in different directions on both sides of the axial direction of the motor 500 to be inspected. The first pressure detection mechanism and the second pressure detection mechanism are used to respectively detect the directions of the forces on both sides of the axial direction of the motor 500 to be inspected on the inspection platform 100, thereby obtaining the direction of the braking force. Since the direction of the braking force is opposite to the direction of rotation of the rotor, the actual rotation direction of the motor 500 to be inspected can be indirectly known, thereby obtaining the direction of rotation of the motor 500 to be inspected. Different from the principle of the prior art, the motor 500 to be tested does not need to be modified, nor does it need to add auxiliary testing tooling to the motor 500 to be tested. At the same time, accurate, fast and efficient testing can be achieved, and automatic identification of the direction of rotation of the motor 500 to be tested can be realized.

[0073] The motor steering detection method provided by the present invention comprises the following steps: installing the motor 500 to be detected at the installation station of the detection platform 100; in the process of acceleration and / or deceleration of the motor 500 to be detected, respectively using the first pressure detection mechanism and the second pressure detection mechanism to detect the pressure information of the corresponding installation positions of the first pressure detection mechanism and the second pressure detection mechanism on the detection platform 100; and determining the steering direction of the motor 500 to be detected according to the pressure information detected by the first pressure detection mechanism and the second pressure detection mechanism. In actual detection, firstly, the motor 500 to be detected is installed at the motor mounting station of the detection platform 100, and then, the motor 500 to be detected is powered by a power supply with a specified fixed phase sequence. When the motor 500 to be detected is accelerated and / or decelerated, the first pressure detection mechanism and the second pressure detection mechanism are used to respectively detect the direction of the force acting on both sides of the axial direction of the motor 500 to be detected on the detection platform 100, thereby obtaining the direction of the braking force. Since the braking force direction is opposite to the rotor rotation direction, the actual rotation direction of the motor 500 to be detected can be indirectly known, thereby obtaining the steering direction of the motor 500 to be detected. The motor steering detection method provided by the present invention is different from the technical principle of the existing detection scheme, and can effectively improve the shortcomings of the existing detection scheme, and can achieve accurate, fast and efficient detection, and realize automatic identification of the steering direction of the motor 500 to be detected. At the same time, the motor 500 to be detected does not need to be modified, and there is no need to add auxiliary testing tooling.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A motor steering detection device, characterized in that: It comprises a detection platform (100), a first pressure detection mechanism and a second pressure detection mechanism; The detection platform (100) is provided with a motor installation station, the motor installation station is used to install the motor to be detected (500), the first pressure detection mechanism is arranged on one side of the axial direction of the motor to be detected (500), and the second pressure detection mechanism is arranged on the other side of the axial direction of the motor to be detected (500), and during the acceleration and / or deceleration process of the motor to be detected (500), the first pressure detection mechanism and the second pressure detection mechanism are respectively used to detect pressure information of the motor to be detected at the corresponding installation position on the detection platform (100); The motor steering detection device also includes a data processing mechanism; The first pressure detection mechanism and the second pressure detection mechanism are respectively connected to the data processing mechanism; The detection platform (100) comprises a first tooling layer (110) and a second tooling layer (120) which are arranged at intervals, and the first pressure detection mechanism and the second pressure detection mechanism are both arranged between the first tooling layer (110) and the second tooling layer (120).

2. The motor steering detection device according to claim 1, characterized in that: The first pressure detection mechanism comprises one or more first pressure sensors (210), and the plurality of first pressure sensors (210) are arranged at intervals on one side of the detection platform (100); The second pressure detection mechanism comprises one or more second pressure sensors (220), and the plurality of second pressure sensors (220) are arranged at intervals on the other side of the detection platform (100).

3. The motor steering detection device according to claim 2, characterized in that: The number of the first pressure sensor (210) and the number of the second pressure sensor (220) are both plural; A plurality of the first pressure sensors (210) are arranged in a matrix structure on one side of the detection platform (100), and a plurality of the second pressure sensors (220) are arranged in a matrix structure on the other side of the detection platform (100).

4. The motor steering detection device according to claim 1, characterized in that: The data processing mechanism comprises a controller (300); The controller (300) comprises a data conditioning module (310) and a central processing unit (320); the first pressure detection mechanism and the second pressure detection mechanism are electrically connected to the data conditioning module (310) respectively; and the data conditioning module (310) is electrically connected to the central processing unit (320).

5. The motor steering detection device according to claim 4, characterized in that: The data processing mechanism includes a communication mechanism (330) and a host computer (410); The controller (300) is communicatively connected to the host computer (410) via the communication mechanism (330).

6. The motor steering detection device according to claim 5, characterized in that: The data processing mechanism further comprises an alarm mechanism (420), and the alarm mechanism (420) is electrically connected to the host computer (410).

7. The motor steering detection device according to claim 5, characterized in that: The data processing mechanism further comprises a power supply component (340), wherein the power supply component (340) is respectively connected to the first pressure detection mechanism, the second pressure detection mechanism, the controller (300) and the communication mechanism (330).

8. The motor steering detection method of the motor steering detection device according to claim 1, characterized in that: The following steps are involved: Installing the motor to be tested (500) on an installation station of the testing platform (100); During the acceleration and / or deceleration process of the motor (500) to be tested, the first pressure testing mechanism and the second pressure testing mechanism are respectively used to detect pressure information of corresponding installation positions of the first pressure testing mechanism and the second pressure testing mechanism on the testing platform (100); The rotation direction of the motor (500) to be detected is determined based on the pressure information detected by the first pressure detection mechanism and the second pressure detection mechanism.

Images