Motor fault detection device

Abstract

The utility model discloses a motor fault detection device which comprises a supporting base, a clamping assembly and a detection part, the bottom of the clamping assembly is fixedly installed on the top of the supporting base, and the bottom of the detection part is installed on the clamping assembly in a sliding mode. The detection component comprises a displacement assembly, a detection cylinder, a trigger assembly and a sensing assembly. According to the utility model, the trigger wheel rolls to the offset part of the rotating shaft of the motor to be detected, the trigger wheel retracts towards the direction of the detection cylinder, the trigger wheel drives the trigger bracket, the trigger sliding column and the extension rod to displace, the displacement of the extension rod drives the displacement of the strong magnetic column, the strong magnetic column displaces in the induction coil, and the induction coil cuts the magnetic field of the strong magnetic column. The induction coil generates an electric signal and an electric signal transmission terminal, the change of an electric signal value forms an oscillogram, and the offset degree of the rotating shaft of the motor to be detected is judged through the oscillogram, so that whether the axis of the motor is in a normal position or not and the offset degree are detected.

Description

Technical Field

[0001] The utility model relates to the technical field of motor detection, in particular to a motor fault detection device. Background Art

[0002] Motor fault detection devices are devices used to diagnose the operating status of motors. Their purpose is to detect potential problems in advance, prevent sudden failures, and ensure safe and efficient operation of the equipment. These devices are typically integrated with advanced sensor technology and data analysis capabilities, and can regularly detect various performance indicators and abnormal conditions of the motor.

[0003] When the motor leaves the factory or is inspected regularly, it is difficult for the staff to tell whether the motor shaft is in the normal position or whether it has shifted, which leads to reduced operating accuracy of the motor. The shaft shift will directly affect the rotation accuracy of the motor, resulting in unstable output motion; increased vibration and noise. The shaft shift will cause the motor to generate additional vibrations during operation. These vibrations will not only increase mechanical wear and shorten equipment life, but may also generate loud noise and affect the working environment; as well as axial thrust problems. For example, if the axial position of the generator rotor is greatly offset, it will generate a large axial thrust, which may damage the thrust bearing and cause the bearing temperature to rise. In severe cases, it may cause damage to the entire motor system.

[0004] Therefore, how to provide a motor fault detection device is an urgent problem that those skilled in the art need to solve. Utility Model Content

[0005] One purpose of the present invention is to provide a motor fault detection device. The present invention rolls a trigger wheel to the offset part of the motor shaft to be tested, and the trigger wheel will retract in the direction of the detection tube. The trigger wheel drives the displacement of the trigger bracket, the trigger slide column and the extension rod. The displacement of the extension rod drives the displacement of the strong magnetic column. The strong magnetic column displaces in the induction coil, and the induction coil cuts the magnetic field of the strong magnetic column. The induction coil generates an electrical signal, a terminal for transmitting the electrical signal, and at the same time, the change of the electrical signal value forms a waveform diagram. The degree of deviation of the motor shaft to be tested is judged by the waveform diagram, and the device has the function of detecting whether the motor axis is in a normal position and the degree of deviation.

[0006] According to an embodiment of the present utility model, a motor fault detection device includes a support base, a clamping assembly, and a detection component, wherein the bottom of the clamping assembly is fixedly mounted on the top of the support base, and the bottom of the detection component is slidably mounted on the clamping assembly;

[0007] The detection component includes a displacement assembly, a detection cylinder, a trigger assembly and a sensing assembly, wherein the bottom of the displacement assembly is slidably mounted on the clamping assembly, the detection cylinder is fixedly mounted on the displacement assembly, the trigger assembly is mounted on one side of the detection cylinder, and the sensing assembly is mounted on the other side of the detection cylinder.

[0008] Furthermore, the support base includes an upper support plate, an electric telescopic rod, a lower support plate and a mounting plate, wherein the bottom of the upper support plate is fixedly mounted on the top of the electric telescopic rod, the top of the electric telescopic rod is fixedly mounted on the top of the lower support plate, and the mounting plate is fixedly mounted on both sides of the lower support plate.

[0009] Furthermore, the clamping assembly, clamping slot, motor seat, clamping motor and bidirectional threaded rod, wherein the bottom of the clamping seat is fixedly mounted on the top of the upper support plate, the clamping slot is opened on both sides of the top of the clamping seat, the motor seat is fixedly mounted on the clamping seat, the base of the clamping motor is fixedly mounted on the motor seat, one end of the bidirectional threaded rod is fixedly mounted on the rotating shaft of the clamping motor, and the other end of the bidirectional threaded rod rotates and extends to the inner wall of the clamping slot.

[0010] Furthermore, the displacement assembly includes a displacement slider, a displacement frame and a displacement ring. The displacement slider is slidably installed in the clamping slot, the top of the displacement frame is fixedly installed on the top of the displacement slider, and the displacement ring is fixedly installed on the top of the displacement frame.

[0011] Furthermore, both ends of the bidirectional threaded rod pass through the displacement slider, and the bidirectional threaded rod and the displacement slider are threadedly connected.

[0012] Furthermore, the trigger assembly includes a trigger slide, a trigger bracket and a trigger wheel, wherein one end of the trigger slide is inserted into the detection cylinder, and the trigger slide and the detection cylinder are slidably connected, the trigger bracket is fixedly installed on the other end of the trigger slide, and the wheel axles at both ends of the trigger wheel are rotatably installed on the trigger bracket.

[0013] Furthermore, the trigger assembly also includes an extension rod and a return spring, the extension rod extends into the detection cylinder toward one end of the detection cylinder, and the end of the extension rod is fixedly mounted on the trigger slide column, the other end of the extension rod extends out of the detection cylinder, and the extension rod and the detection cylinder are slidably connected, the return spring is located inside the detection cylinder, one end of the return spring is fixedly mounted on the inner wall of the detection cylinder, and the other end of the return spring is fixedly mounted on the trigger slide column.

[0014] Furthermore, the induction component includes a magnetic bracket, a strong magnetic column, a curved plate, a coil tube and an induction coil, wherein the end of the magnetic bracket is fixedly mounted on the end of the extension rod away from the detection tube, the strong magnetic column is fixedly mounted inside the magnetic bracket, one end of the curved plate is fixedly mounted on the outer wall of the end of the detection tube away from the trigger sliding column, and the coil tube is fixedly mounted on the other end of the curved plate.

[0015] The beneficial effects of the utility model are:

[0016] The utility model rolls a trigger wheel to the offset part of the motor shaft to be tested, and the trigger wheel will retract in the direction of the detection tube, and the trigger wheel drives the displacement of the trigger bracket, the trigger slide column and the extension rod, and the displacement of the extension rod drives the displacement of the strong magnetic column, and the strong magnetic column displaces in the induction coil, and the induction coil cuts the magnetic field of the strong magnetic column, and the induction coil generates an electric signal, and the terminal of the electric signal transmission, and the change of the electric signal value forms a waveform diagram. The waveform diagram is used to judge the degree of deviation of the motor shaft to be tested, and the utility model has the function of detecting whether the motor axis is in a normal position and the degree of deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of a motor fault detection device proposed by the utility model;

[0019] Figure 2 This is a cross-sectional view of a detection barrel of a motor fault detection device proposed by the present utility model;

[0020] Figure 3 A motor fault detection device proposed by the utility model Figure 2 A magnified view of point A;

[0021] Figure 4 A motor fault detection device proposed by the utility model Figure 2 Enlarged view of point B.

[0022] In the figure: 1. Support base; 1.1. Upper support plate; 1.2. Electric telescopic rod; 1.3. Lower support plate; 1.4. Mounting plate; 2. Clamping assembly; 2.1. Clamping seat; 2.2. Clamping slide; 2.3. Motor seat; 2.4. Clamping motor; 2.5. Bidirectional threaded rod; 3. Detection component; 4. Displacement assembly; 4.1. Displacement slider; 4.2. Displacement frame; 4.3. Displacement ring; 5. Detection cylinder; 6. Trigger assembly; 6.1. Trigger slide; 6.2. Trigger bracket; 6.3. Trigger wheel; 6.4. Extension rod; 6.5. Reset spring; 7. Induction assembly; 7.1. Magnetic bracket; 7.2. Strong magnetic column; 7.3. Curved plate; 7.4. Coil cylinder; 7.5. Induction coil. DETAILED DESCRIPTION

[0023] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0024] Please refer to Figures 1 to 4 The utility model provides a motor fault detection device, including support base 1, clamping assembly 2) and detection component 3, wherein the bottom fixed mounting of clamping assembly 2) is at the top of support base 1, and support base 1 is used for supporting the whole, and the bottom sliding installation of detection component 3 is on clamping assembly 2), and detection component 3 is provided with two groups, and two groups of detection component 3 are located at the both sides of support base 1, detection component 3 includes displacement assembly 4, detection cylinder 5, trigger assembly 6 and response assembly 7, wherein the bottom sliding installation of displacement assembly 4 is on clamping assembly 2), and detection cylinder 5 is fixedly installed on displacement assembly 4, and trigger assembly 6 is installed at one side of detection cylinder 5, and response assembly 7 is installed at the other side of detection cylinder 5, and response assembly 7 is used for the triggering of signal, and mechanical movement is converted into electric signal, and the waveform diagram formed by electric signal.

[0025] Specifically, support base 1 includes upper support plate 1.1, electric telescopic rod 1.2, lower support plate 1.3 and mounting plate 1.4, wherein the bottom of upper support plate 1.1 is fixedly installed on the top of electric telescopic rod 1.2, the top of electric telescopic rod 1.2 is fixedly installed on the top of lower support plate 1.3, electric telescopic rod 1.2 is used to raise or lower the height of support base 1, and mounting plate 1.4 is fixedly installed on the both sides of lower support plate 1.3.

[0026] More specifically, clamping assembly 2) includes clamping seat 2.1, clamping sliding slot 2.2, motor seat 2.3, clamping motor 2.4 and bidirectional screw rod 2.5, wherein the bottom of clamping seat 2.1 is fixedly installed on the top of upper support plate 1.1, clamping sliding slot 2.2 is opened on the both sides of the top of clamping seat 2.1, motor seat 2.3 is fixedly installed on clamping seat 2.1, the base of clamping motor 2.4 is fixedly installed on motor seat 2.3, one end of bidirectional screw rod 2.5 is fixedly installed on the rotating shaft of clamping motor 2.4, the other end of bidirectional screw rod 2.5 is rotatably extended to the inner wall of clamping sliding slot 2.2, both ends of bidirectional screw rod 2.5 are provided with a thread, and the rotation directions of the threads at both ends of bidirectional screw rod 2.5 are opposite, and the threads extend to the middle position of bidirectional screw rod 2.5.

[0027] Displacement assembly 4 includes displacement sliding block 4.1, displacement frame 4.2 and displacement ring 4.3, displacement sliding block 4.1 is slidingly installed in clamping sliding slot 2.2, displacement sliding block 4.1 is provided with two, the top of displacement frame 4.2 is fixedly installed on the top of displacement sliding block 4.1, and displacement ring 4.3 is fixedly installed on the top of displacement frame 4.2.

[0028] Both ends of bidirectional screw rod 2.5 penetrate through displacement sliding block 4.1, and bidirectional screw rod 2.5 is screw-connected with displacement sliding block 4.1.

[0029] More specifically, the trigger assembly 6 includes a trigger slide 6.1, a trigger bracket 6.2 and a trigger wheel 6.3, wherein one end of the trigger slide 6.1 is inserted into the detection tube 5, and the trigger slide 6.1 and the detection tube 5 are slidably connected. A flange is provided at the end of the trigger slide 6.1 facing the detection tube 5 to prevent the trigger slide 6.1 from detaching from the detection tube 5. The trigger bracket 6.2 is fixedly mounted on the other end of the trigger slide 6.1, and the wheel axles at both ends of the trigger wheel 6.3 are rotatably mounted on the trigger bracket 6.2. The outer wall of the trigger wheel 6.3 needs to be tightly attached to the outer wall of the rotating shaft of the motor to be tested.

[0030] The trigger assembly 6 also includes an extension rod 6.4 and a return spring 6.5. The extension rod 6.4 extends toward one end of the detection cylinder 5 into the detection cylinder 5, and the end of the extension rod 6.4 is fixedly mounted on the trigger slide 6.1. The other end of the extension rod 6.4 extends out of the detection cylinder 5, and the extension rod 6.4 and the detection cylinder 5 are slidingly connected. The return spring 6.5 is located inside the detection cylinder 5. The return spring 6.5 facilitates resetting the trigger wheel 6.3. One end of the return spring 6.5 is fixedly mounted on the inner wall of the detection cylinder 5, and the other end of the return spring 6.5 is fixedly mounted on the trigger slide 6.1.

[0031] The induction assembly 7 includes a magnetic bracket 7.1, a strong magnetic column 7.2, a curved plate 7.3, a coil barrel 7.4, and an induction coil 7.5. The end of the magnetic bracket 7.1 is fixedly mounted on the end of the extension rod 6.4 away from the detection barrel 5. The strong magnetic column 7.2 is fixedly mounted inside the magnetic bracket 7.1. The strong magnetic column 7.2 is located inside the coil barrel 7.4. One end of the curved plate 7.3 is fixedly mounted on the outer wall of the detection barrel 5 away from the trigger slide 6.1. The coil barrel 7.4 is fixedly mounted on the other end of the curved plate 7.3.

[0032] Furthermore, the electric telescopic rod 1.2 is turned on and the height of the support base 1 is adjusted until the trigger wheel 6.3 and the shaft of the motor to be tested are at the same height.

[0033] Start the clamping motor 2.4. The rotation of the clamping motor 2.4 drives the rotation of the bidirectional threaded rod 2.5. The rotation of the bidirectional threaded rod 2.5 drives the two displacement sliders 4.1 to move in opposite directions or in opposite directions. The rotation of the bidirectional threaded rod 2.5 drives the displacement sliders 4.1 to move in opposite directions. The displacement sliders 4.1 drive the displacement frame 4.2 and the displacement ring 4.3. The displacement ring 4.3 then drives the detection cylinder 5, the trigger assembly 6 and the sensing assembly 7 to move until the outer walls of the two trigger wheels 6.3 are tightly attached to the outer wall of the rotating shaft of the motor to be tested.

[0034] The motor to be tested is started, and the rotation shaft of the motor to be tested rotates to drive the trigger wheel 6.3 to rotate, and the trigger wheel 6.3 rotates along the outer wall of the rotation shaft of the motor to be tested.

[0035] When the shaft of the motor to be tested is not at the axis center, there is a phenomenon of deviation when the shaft of the motor to be tested rotates. The trigger wheel 6.3 rolls to the offset part of the shaft of the motor to be tested, and the trigger wheel 6.3 retracts toward the direction of the detection tube 5. The trigger wheel 6.3 drives the displacement of the trigger bracket 6.2, and the displacement of the trigger bracket 6.2 drives the displacement of the trigger slide 6.1. The displacement of the trigger slide 6.1 drives the displacement of the extension rod 6.4, and the trigger slide 6.1 compresses the return spring 6.5, and the return spring 6.5 compresses the trigger slide 6.4. .1. The trigger bracket 6.2 and the trigger wheel 6.3 are reset, effectively maintaining the trigger wheel 6.3 against the shaft of the motor to be tested. The displacement of the extension rod 6.4 drives the displacement of the magnetic bracket 7.1 and the strong magnetic column 7.2. The magnetic bracket 7.1 and the strong magnetic column 7.2 are displaced within the induction coil 7.5. The induction coil 7.5 cuts the magnetic field of the strong magnetic column 7.2, and the induction coil 7.5 generates an electrical signal, which is the terminal for electrical signal transmission. At the same time, the change in the electrical signal value forms a waveform graph, and the degree of deviation of the shaft of the motor to be tested is determined by the waveform graph.

[0036] When the rotating shaft of the motor to be tested is at the axis center, the trigger wheel 6.3 rotates closely against the outer wall of the rotating shaft.

[0037] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A motor fault detection device, characterized in that: It comprises a support base (1), a clamping assembly (2) and a detection component (3), wherein the bottom of the clamping assembly (2) is fixedly mounted on the top of the support base (1), and the bottom of the detection component (3) is slidably mounted on the clamping assembly (2); The detection component (3) comprises a displacement component (4), a detection cylinder (5), a trigger component (6) and a sensing component (7), wherein the bottom of the displacement component (4) is slidably mounted on the clamping component (2), the detection cylinder (5) is fixedly mounted on the displacement component (4), the trigger component (6) is mounted on one side of the detection cylinder (5), and the sensing component (7) is mounted on the other side of the detection cylinder (5).

2. A motor fault detection device according to claim 1, characterized in that: The support base (1) comprises an upper support plate (1.1), an electric telescopic rod (1.2), a lower support plate (1.3) and a mounting plate (1.4), wherein the bottom of the upper support plate (1.1) is fixedly mounted on the top of the electric telescopic rod (1.2), the top of the electric telescopic rod (1.2) is fixedly mounted on the top of the lower support plate (1.3), and the mounting plate (1.4) is fixedly mounted on both sides of the lower support plate (1.3).

3. A motor fault detection device according to claim 1, characterized in that: The clamping assembly (2) comprises a clamping seat (2.1), a clamping chute (2.2), a motor seat (2.3), a clamping motor (2.4) and a bidirectional threaded rod (2.5), wherein the bottom of the clamping seat (2.1) is fixedly mounted on the top of the upper support plate (1.1), the clamping chute (2.2) is opened on both sides of the top of the clamping seat (2.1), the motor seat (2.3) is fixedly mounted on the clamping seat (2.1), the base of the clamping motor (2.4) is fixedly mounted on the motor seat (2.3), one end of the bidirectional threaded rod (2.5) is fixedly mounted on the rotating shaft of the clamping motor (2.4), and the other end of the bidirectional threaded rod (2.5) rotates and extends to the inner wall of the clamping chute (2.2).

4. A motor fault detection device according to claim 1, characterized in that: The displacement assembly (4) comprises a displacement slider (4.1), a displacement frame (4.2) and a displacement ring (4.3); the displacement slider (4.1) is slidably mounted in the clamping slot (2.2); the top of the displacement frame (4.2) is fixedly mounted on the top of the displacement slider (4.1); and the displacement ring (4.3) is fixedly mounted on the top of the displacement frame (4.2).

5. A motor fault detection device according to claim 3, characterized in that: Both ends of the bidirectional threaded rod (2.5) pass through the displacement slider (4.1), and the bidirectional threaded rod (2.5) and the displacement slider (4.1) are threadedly connected.

6. A motor fault detection device according to claim 1, characterized in that: The trigger assembly (6) comprises a trigger slide (6.1), a trigger bracket (6.2) and a trigger wheel (6.3), wherein one end of the trigger slide (6.1) is plugged into the detection cylinder (5), and the trigger slide (6.1) and the detection cylinder (5) are in sliding connection, the trigger bracket (6.2) is fixedly mounted on the other end of the trigger slide (6.1), and the two end axles of the trigger wheel (6.3) are rotatably mounted on the trigger bracket (6.2).

7. A motor fault detection device according to claim 6, characterized in that: The trigger assembly (6) further comprises an extension rod (6.4) and a return spring (6.5); the extension rod (6.4) extends toward one end of the detection cylinder (5) into the detection cylinder (5), and the end of the extension rod (6.4) is fixedly mounted on the trigger slide (6.1); the other end of the extension rod (6.4) extends out of the detection cylinder (5), and the extension rod (6.4) and the detection cylinder (5) are slidably connected; the return spring (6.5) is located inside the detection cylinder (5), one end of the return spring (6.5) is fixedly mounted on the inner wall of the detection cylinder (5), and the other end of the return spring (6.5) is fixedly mounted on the trigger slide (6.1).

8. The motor fault detection device according to claim 1, characterized in that: The induction component (7) comprises a magnetic bracket (7.1), a strong magnetic column (7.2), a curved plate (7.3), a coil barrel (7.4) and an induction coil (7.5), wherein the end of the magnetic bracket (7.1) is fixedly mounted on the end of the extension rod (6.4) away from the detection barrel (5), the strong magnetic column (7.2) is fixedly mounted inside the magnetic bracket (7.1), one end of the curved plate (7.3) is fixedly mounted on the outer wall of the end of the detection barrel (5) away from the trigger slide (6.1), and the coil barrel (7.4) is fixedly mounted on the other end of the curved plate (7.3).

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