High-speed permanent magnet motor sheath reliability test device

Abstract

The utility model relates to the field of motor quality detection, in particular to a high-speed permanent magnet motor sheath reliability test device, which comprises a platform base, the upper surface of the platform base is fixedly connected with a motor base through bolts, and the upper surface of the motor base is fixedly connected with a dragging motor. A dragging motor is arranged on the upper surface of the platform base, a dragging motor main shaft is arranged in the dragging motor, the surface of the dragging motor main shaft is sleeved with a coupler, the surface of the coupler is fixedly connected with a test main shaft, the upper surface of the platform base is fixedly connected with a to-be-tested device through bolts, and the surface of the to-be-tested device penetrates through and is rotationally connected with the test main shaft. According to the utility model, through the arrangement of the vibration measuring device, when the simulation rotor rotates, the simulation motor operates, the test sheath vibrates, the stress plate is stressed, the vibration condition is transmitted to the vibration sensor through the dowel bar, the vibration sensor feeds back the vibration condition to the control system, and the reliability or potential problems of the sheath are analyzed through data.

Description

Technical Field

[0001] The utility model relates to the field of motor quality detection, in particular to a high-speed permanent magnet motor sheath reliability test device. Background Art

[0002] The motor rotor cover is a vital component in the motor. Its main function is to protect the motor rotor from being damaged by the external environment and to reduce mechanical friction and thermal stress, thereby improving the efficiency and reliability of the motor.

[0003] Motor rotor sheaths are typically made from a variety of materials, with carbon fiber and glass fiber being two common choices. Carbon fiber rotor sheaths offer advantages such as lightweight, high strength, corrosion resistance, and low maintenance, making them widely used in the automotive, industrial manufacturing, energy, and aerospace industries. During the manufacturing process, motor rotor sheaths are typically precisely attached to the rotor using specialized processes such as press-fitting or tension winding. However, design optimization is also crucial, and the design of motor rotor sheaths must fully consider the operating environment and performance requirements.

[0004] To this end, we urgently need to design a high-speed permanent magnet motor sheath reliability test device. Utility Model Content

[0005] In order to solve the above problems, the purpose of the present invention is to provide a high-speed permanent magnet motor sheath reliability test device.

[0006] The utility model provides a high-speed permanent magnet motor sheath reliability test device, comprising a platform base, the upper surface of the platform base is fixedly connected to a motor base by bolts, the upper surface of the motor base is fixedly connected to a drag motor, a drag motor main shaft is arranged inside the drag motor, a coupling is sleeved on the surface of the drag motor main shaft, a test main shaft is fixedly connected to the surface of the coupling, a device to be tested is fixedly connected to the upper surface of the platform base by bolts, the surface of the device to be tested passes through and is rotatably connected to the test main shaft, a weighting device is fixedly connected to the upper surface of the platform base by bolts, a control system and a vibration measuring device are arranged on the upper surface of the platform base, and the number of the vibration measuring devices is two, which are symmetrically arranged on both sides of the device to be tested, and a guard plate is fixedly connected to the surface of the device to be tested.

[0007] Preferably, the device to be tested includes a test sleeve, a bearing passing through and fixedly connected to the surface of the test sleeve, the bearing is rotatably connected to the surface of the test main shaft, the surface of the test main shaft is provided with a rotor winding, and the surface of the test main shaft is sleeved with a simulated rotor, the number of the bearings and rotor windings is two, and the two bearings and rotor windings are symmetrically arranged on both sides of the simulated rotor.

[0008] Preferably, the weighting device includes a support plate, which is fixedly connected to the platform base by bolts. A fixed plate is fixedly connected to the surface of the support plate. A cylinder is fixedly connected to the surface of the fixed plate by screws. A cylinder push rod is slidably connected inside the cylinder. A pressure sensor is arranged on the surface of the cylinder push rod. A pressing plate is fixedly connected to the surface of the pressure sensor. The numbers of the cylinder push rod and the support plate are both two, and they are symmetrically arranged on both sides of the fixed plate.

[0009] Preferably, the vibration measuring device includes a vibration sensor. A force transmission rod is arranged on the surface of the vibration sensor. A force receiving plate is fixedly connected to the surface of the force transmission rod. A spring is fixedly connected between the force receiving plate and the vibration sensor. The spring is sleeved on the surface of the force transmission rod. The numbers of the force transmission rod and the spring are three.

[0010] Preferably, an integrated circuit is arranged inside the platform base. The device to be tested and the weighting device in this device are connected to the control system through a circuit.

[0011] Preferably, the intersection of the two diagonals of the rectangle formed by the central axis of the test spindle and the side surface of the device to be tested coincides, so as to avoid the vibration caused by deviation when the simulated rotor rotates, make the test sheath unevenly stressed, and cause measurement deviation.

[0012] Preferably, the two vibration measuring devices are located at the lower middle positions on both sides of the device to be tested, and the straight line where the center connection line of the two vibration measuring devices is located is parallel to the center connection line of the two side surfaces of the device to be tested, so that the two vibration measuring devices are evenly stressed and avoid inaccurate test results caused by too large a numerical deviation between the two vibration measuring devices.

[0013] Preferably, the pressing plate is located directly above the device to be tested during measurement, so that the test sheath in the device to be tested can be evenly stressed and the test results are more accurate.

[0014] The technical effects that can be obtained by the technical means of the present utility model are as follows:

[0015] 1. By setting the weighting device, the present utility model can apply a certain pressure to the sheath to test the bearing capacity and structural stability of the sheath. During use, it is controlled by the control system to lower the cylinder push rod inside the cylinder, so that the cylinder push rod presses on the upper surface of the device to be tested. The pressure sensor is stressed and feeds back to the control system to control the pressure size to test the bearing capacity of the device to be tested.

[0016] 2. By setting the vibration measuring device, when the simulated rotor rotates and the simulated motor runs, the test sheath vibrates, the force receiving plate is stressed, and the vibration condition is transmitted to the vibration sensor through the force transmission rod. The vibration sensor feeds back to the control system, and the reliability or potential problems of the sheath are analyzed through data. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the new three-dimensional structure on the back of this utility model.

[0019] Figure 3 This is a partial cross-sectional schematic diagram of the three-dimensional structure of the device to be tested in the present utility model.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the weighting device of the utility model.

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the vibration measuring device of the present utility model.

[0022] In the figure, 1. platform base; 2. motor base; 3. drag motor; 4. coupling; 5. test spindle; 6. device to be tested; 601. bearing; 602. rotor winding; 603. simulated rotor; 604. test sleeve; 7. weighting device; 701. pressure plate; 702. pressure sensor; 703. cylinder; 704. cylinder push rod; 705. fixing plate; 706. support plate; 8. control system; 9. guard plate; 10. vibration measuring device; 1001. force transmission rod; 1002. force plate; 1003. spring; 1004. vibration sensor; 11. drag motor spindle. DETAILED DESCRIPTION

[0023] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described with reference to the accompanying drawings. Example

[0024] The preferred embodiment of the high-speed permanent magnet motor sheath reliability test device provided by the utility model is as follows Figures 1 to 5 As shown: A high-speed permanent magnet motor sheath reliability test device, including a platform base 1, the upper surface of the platform base 1 is fixedly connected to a motor base 2 by bolts, the upper surface of the motor base 2 is fixedly connected to a drag motor 3, a drag motor main shaft 11 is arranged inside the drag motor 3, the surface of the drag motor main shaft 11 is sleeved with a coupling 4, the surface of the coupling 4 is fixedly connected to a test main shaft 5, the upper surface of the platform base 1 is fixedly connected to a device to be tested 6 by bolts, the surface of the device to be tested 6 passes through and is rotatably connected to the test main shaft 5, the upper surface of the platform base 1 is fixedly connected to a weighting device 7 by bolts, the upper surface of the platform base 1 is provided with a control system 8 and a vibration measuring device 10, the number of the vibration measuring devices 10 is two, which are symmetrically arranged on both sides of the device to be tested 6, and the surface of the device to be tested 6 is fixedly connected to a guard plate 9.

[0025] Further, the device to be tested 6 includes a test sheath 604. The surface of the test sheath 604 penetrates and is fixedly connected with a bearing 601. The bearing 601 is rotationally connected to the surface of the test main shaft 5. The surface of the test main shaft 5 is provided with a rotor winding 602. A simulated rotor 603 is sleeved on the surface of the test main shaft 5. The number of the bearings 601 and the rotor windings 602 is two. The two bearings 601 and the rotor windings 602 are symmetrically arranged on both sides of the simulated rotor 603 respectively.

[0026] Further, the weighting device 7 includes a support plate 706. The support plate 706 is fixedly connected with the platform base 1 by bolts. A fixed plate 705 is fixedly connected to the surface of the support plate 706. A cylinder 703 is fixedly connected to the surface of the fixed plate 705 by screws. A cylinder push rod 704 is slidably connected inside the cylinder 703. A pressure sensor 702 is arranged on the surface of the cylinder push rod 704. A pressing plate 701 is fixedly connected to the surface of the pressure sensor 702. The number of the cylinder push rods 704 and the support plates 706 is two respectively, and they are symmetrically arranged on both sides of the fixed plate 705.

[0027] Further, the vibration measuring device 10 includes a vibration sensor 1004. A force transmission rod 1001 is arranged on the surface of the vibration sensor 1004. A force receiving plate 1002 is fixedly connected to the surface of the force transmission rod 1001. A spring 1003 is fixedly connected between the force receiving plate 1002 and the vibration sensor 1004. The spring 1003 is sleeved on the surface of the force transmission rod 1001. The number of the force transmission rods 1001 and the springs 1003 is three.

[0028] Further, an integrated circuit is arranged inside the platform base 1. The device to be tested 6 and the weighting device 7 in this device are connected to the control system 8 through a circuit.

[0029] Furthermore, the intersection of the two diagonals of the rectangle formed by the central axis of the test main shaft 5 and the side surface of the device to be tested 6 coincides, avoiding the eccentric vibration generated when the simulated rotor 603 rotates, making the force on the test sheath 604 uneven and causing measurement deviation.

[0030] Furthermore, the two vibration measuring devices 10 are located at the lower middle positions on both sides of the device to be tested 6, and the straight line where the center connection line of the two vibration measuring devices 10 is located is parallel to the center connection line of the two side surfaces of the device to be tested 6, making the two vibration measuring devices 10 evenly stressed and avoiding inaccurate test results caused by too large a numerical deviation between the two vibration measuring devices 10.

[0031] In addition, the pressing plate 701 is located directly above the device to be tested 6 during measurement, enabling the test sheath 604 in the device to be tested 6 to be evenly stressed and making the test results more accurate.

[0032] Working principle: When the utility model is in operation, as Figures 1 to 5 shown, during use, start the driving motor 3 to rotate the simulated rotor 603 in the device under test 6. Fix the device under test 6 on the platform base 1. Through the control of the control system 8, lower the cylinder push rod 704 inside the cylinder 703 so that the cylinder push rod 704 applies pressure to the upper surface of the device under test 6. The pressure sensor 702 is under pressure and feeds the data back to the control system 8 to control the pressure magnitude and test the bearing capacity of the device under test 6. Stop applying pressure. During the vibration process of the test sheath 604 in the device under test 6, the force receiving plate 1002 is stressed, and the vibration condition is transmitted to the vibration sensor 1004 through the force transmission rod 1001. The vibration sensor 1004 feeds back to the control system 8, and the vibration measurement devices 10 on both sides take the average value of the data, and the comprehensive data results are used to analyze whether the sheath is reliable.

[0033] The above is only the schematic specific implementation manner of the utility model and is not intended to limit the scope of the utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principle of the utility model shall fall within the scope of protection of the utility model. Moreover, it should be noted that the components of the utility model are not limited to the above overall application. Each technical feature described in the specification of the utility model can be selected and used alone according to actual needs or multiple features can be combined for use. Therefore, the utility model should naturally cover other combinations and specific applications related to the inventive points of this case.

Claims

1. A reliability test device for the sheath of a high-speed permanent magnet motor, comprising a platform base (1). The upper surface of the platform base (1) is fixedly connected to a motor base (2) by bolts. The upper surface of the motor base (2) is fixedly connected to a driving motor (3). Inside the driving motor (3), there is a driving motor main shaft (11). A coupling (4) is sleeved on the surface of the driving motor main shaft (11). The surface of the coupling (4) is fixedly connected to a test main shaft (5). The upper surface of the platform base (1) is fixedly connected to a device to be tested (6) by bolts. The surface of the device to be tested (6) penetrates and is rotatably connected to the test main shaft (5). The upper surface of the platform base (1) is fixedly connected to a weight device (7) by bolts. The upper surface of the platform base (1) is provided with a control system (8) and a vibration measuring device (10). The number of the vibration measuring devices (10) is two, symmetrically arranged on both sides of the device to be tested (6). A guard plate (9) is fixedly connected to the surface of the device to be tested (6).

2. The reliability test device for the sheath of a high-speed permanent magnet motor according to claim 1, wherein: The device to be tested (6) includes a test sheath (604). Bearings (601) penetrate and are fixedly connected to the surface of the test sheath (604). The bearings (601) are rotatably connected to the surface of the test main shaft (5). A rotor winding (602) is arranged on the surface of the test main shaft (5). A simulated rotor (603) is sleeved on the surface of the test main shaft (5). The number of the bearings (601) and the rotor windings (602) is two, and the two bearings (601) and the rotor windings (602) are symmetrically arranged on both sides of the simulated rotor (603) respectively.

3. A reliability test device for the sheath of a high-speed permanent magnet motor according to claim 1, characterized in that: The weight device (7) includes a support plate (706). The support plate (706) is fixedly connected to the platform base (1) by bolts. A fixing plate (705) is fixedly connected to the surface of the support plate (706). A cylinder (703) is fixedly connected to the surface of the fixing plate (705) by screws. A cylinder push rod (704) is slidably connected inside the cylinder (703). A pressure sensor (702) is arranged on the surface of the cylinder push rod (704). A pressure plate (701) is fixedly connected to the surface of the pressure sensor (702). The number of the cylinder push rods (704) and the support plates (706) is two respectively, symmetrically arranged on both sides of the fixing plate (705).

4. The reliability test device for the sheath of a high-speed permanent magnet motor according to claim 1, characterized in that: The vibration measuring device (10) includes a vibration sensor (1004). A force transmission rod (1001) is arranged on the surface of the vibration sensor (1004). A force receiving plate (1002) is fixedly connected to the surface of the force transmission rod (1001). A spring (1003) is fixedly connected between the force receiving plate (1002) and the vibration sensor (1004). The spring (1003) is sleeved on the surface of the force transmission rod (1001). The number of the force transmission rods (1001) and the springs (1003) is three.

5. The reliability test device for the sheath of a high-speed permanent magnet motor according to claim 1, wherein: An integrated circuit is arranged inside the platform base (1). The device to be tested (6) and the weight device (7) in this device are connected to the control system (8) through circuits.

6. The reliability test device for the sheath of a high-speed permanent magnet motor according to claim 1, wherein: The intersection point of the two diagonals of the rectangle formed by the central axis of the test spindle (5) and the side surface of the device to be tested (6) coincides.

7. The reliability test device for the sheath of a high-speed permanent magnet motor according to claim 1, wherein: The two vibration measuring devices (10) are located at the lower middle positions on both sides of the device to be tested (6), and the straight line where the center connection of the two vibration measuring devices (10) is located is parallel to the center connection of the two side surfaces of the device to be tested (6).

8. The reliability test device for the sheath of a high-speed permanent magnet motor according to claim 3, wherein: When measuring, the pressing plate (701) is located directly above the device to be tested (6).

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