Fan motor service life test device and test method

Abstract

The invention belongs to the technical field of motor testing, and particularly discloses a fan motor service life testing device and method, and the device comprises a bottom frame, the top of the bottom frame is provided with a placement frame, and the inner side of the placement frame correspondingly supports a to-be-tested motor body through a supporting part. The placement frame is installed at the top of the bottom frame through a sliding part, a torque sensor is arranged on the front side portion of the motor body, and a first shaft rod at the output end of the motor body is correspondingly inserted into a second shaft rod at the output end of the torque sensor. The vertical rod drives the rotating rod to move up and down, the moving rotating rod drives the first rotating frame and the second rotating frame to move through the telescopic components, and the two telescopic components drive the motor body to move up and down until the first shaft rod at the output end of the motor body corresponds to the second shaft rod at the output end of the torque sensor. The first shaft rod and the second shaft rod can be in a concentric state conveniently, and the accuracy of the service life test of the motor body is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of motor testing, and in particular relates to a fan motor life testing device and a testing method. Background Art

[0002] The purpose of reliability testing is to determine the reliability of a product under specified conditions and within a specified service life. Life testing is the most important and fundamental reliability test for evaluating a product's lifespan characteristics.

[0003] When performing life testing on a fan motor, a torque sensor is required to perform torque testing on the output shaft of the fan motor. The output end of the fan motor and the output end of the torque sensor need to be aligned with the axis. Once the outer diameter of the fan motor to be tested has a slight deviation, it is easy for the output shaft of the fan motor to be tested and the torque sensor to be out of center, resulting in errors in the life test of the fan motor to be tested, affecting the reliability of the test.

[0004] Therefore, it is necessary to invent a fan motor life test device and test method to solve the above problems. Summary of the Invention

[0005] In view of the above problems, the present invention provides a fan motor life test device and test method to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The cam is secured to the upper and lower ends of the motor shafts and is adapted to engage with the actuator member when the actuator is engaged, and the actuator member is engaged with the actuator's internal friction member and is adapted to engage with the actuator's internal friction member when the actuator is engaged.

[0008] Furthermore, the telescopic component includes an inner rod, a bottom block, a slide, a connecting plate and a spring; an inner groove is provided inside the first rotating frame and the second rotating frame, the top end of the inner rod is correspondingly inserted into the inner groove, the bottom end of the inner rod is connected to the bottom block, the slide is fixed on the top surface of the bottom block, and the rotating rod passes through the center of the bottom block, the top end of the inner rod is connected to the connecting plate, and the surface of the inner rod is sleeved with a spring, the bottom end of the spring is connected to the bottom of the inner groove, and the top end of the spring is connected to the bottom surface of the connecting plate.

[0009] Furthermore, the top surfaces of the first rotating frame and the second rotating frame are both provided with slides, and the two slides are arranged opposite to each other, and the motor body is placed on the top surfaces of the two slides accordingly.

[0010] Furthermore, screw rods are spirally passed through the front and rear sides of the lifting frame, and the screw rods are spirally passed through the ends of the two rotating rods. The rotating screw rods make the two rotating rods approach or move away from each other inside the sliding groove.

[0011] Furthermore, the sliding component includes two sliders, a support rod and a pressure plate; sliders are provided on both sides of the placement frame, the inner sides of the sliders are connected to the sides of the placement frame by connecting rods, and the top surface of the base frame is provided with a bottom groove that slides with the sliders, the top surface of the sliders is fixed with a support rod, and a pressure plate is provided on the top of the placement frame, the two ends of the pressure plate correspond to the two support rods one by one, the end of the pressure plate is sleeved on the surface of the support rod, and a second nut is spirally sleeved on the surface of the support rod, the bottom surface of the second nut is in contact with the top surface of the pressure plate, and the spiral cooperation between the second nut and the support rod makes the bottom surface of the pressure plate squeezed on the top of the motor body.

[0012] Furthermore, a bottom rod is screwed into the center of the slider, gears are fixed at both ends of the bottom rod, and belts are sleeved on the outer sides of the two gears on the front side of the chassis.

[0013] Furthermore, a frame plate is fixed to the top surface of the front side of the base frame, the torque sensor is placed inside the groove on the top surface of the frame plate, and a pressure strip is installed on the top of the frame plate using bolts, and the bottom surface of the pressure strip is in contact with the top surface of the torque sensor.

[0014] The present invention also provides a fan motor life test method, which uses the above-mentioned fan motor life test device and includes the following steps:

[0015] S1. Place the torque sensor inside the groove on the top of the frame plate, place the corresponding cover of the pressure strip on the top of the frame plate, and use bolts to fix the pressure strip to the top of the frame plate. At this time, the torque sensor is fixed on the top of the frame plate.

[0016] S2. Place the motor body on the top surfaces of the two slides, pull the vertical rod upward, and the vertical rod uses the lifting frame to drive the rotating rod to move up and down. The moving rotating rod uses the telescopic component to make the motor body move synchronously. At this time, rotate the screw. The rotation of the screw makes the two rotating rods move closer or farther away from each other, so that the first shaft at the output end of the motor body corresponds to the second shaft at the output end of the torque sensor. Turn the first nut so that the first nut fits into the top surfaces of the two ends of the placement frame;

[0017] S3. The pressing plate moves downward on the surfaces of the two support rods due to gravity until the bottom surface of the pressing plate is in contact with the surface of the motor body. The second nut is rotated so that the bottom surface of the second nut is in contact with the top surface of the pressing plate, thus completing the restriction of the motor body.

[0018] S4. Rotate the gears. The rotating gears use belts to make adjacent gears rotate synchronously. The rotating gears drive the bottom rod to rotate. The rotating bottom rod causes the slider to slide inside the bottom groove. The sliding slider drives the placement rack to move backward synchronously using the connecting rod until the first shaft at the output end of the motor body corresponds to the inside of the second shaft at the output end of the torque sensor.

[0019] S5. Connect the motor body to an external power supply and start the motor body. The first shaft at the output end of the motor body rotates. The rotating first shaft causes the second shaft at the output end of the torque sensor to rotate. At this time, the torque sensor converts the physical change of torque into an accurate electrical signal and displays the physical change of torque on the display screen, completing the life detection of the motor body.

[0020] Technical effects and advantages of the present invention:

[0021] 1. The present invention drives the rotating rod up and down by a vertical rod. The movable rotating rod drives the first rotating frame and the second rotating frame to move by a telescopic component. The two telescopic components drive the motor body up and down until the first shaft rod at the output end of the motor body corresponds to the second shaft rod at the output end of the torque sensor, so that the first shaft rod and the second shaft rod are in a concentric state, thereby ensuring the accuracy of the motor body life test.

[0022] 2. The present invention enables the first shaft at the output end of the motor body to correspond to the second shaft at the output end of the torque sensor by moving the lifting frame up and down, and utilizes the rotation of the screw to make the top surface of the telescopic component fit with the side of the motor body with different shapes, so as to facilitate the installation of motor bodies with different shapes on the top of the supporting component and facilitate the life detection of motor bodies with various shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 2. It is an overall schematic diagram of a fan motor life test device according to an embodiment of the present invention;

[0024] Figure 2 2 is a schematic diagram of the cooperation between the first shaft and the second shaft according to an embodiment of the present invention;

[0025] Figure 3 Schematic diagram of the support component on the top of the placement rack according to an embodiment of the present invention;

[0026] Figure 4 is a schematic diagram of a lifting frame according to an embodiment of the present invention;

[0027] Figure 5 is a schematic diagram of a placement rack according to an embodiment of the present invention;

[0028] Figure 6 2. It is a schematic diagram of the first rotating frame connected to the telescopic component according to an embodiment of the present invention;

[0029] Figure 7 This is a schematic diagram of a sliding component driving a placement rack to move according to an embodiment of the present invention;

[0030] In the figure: 1. base frame; 2. placement frame; 201. side; 202. top rod; 3. motor body; 4. torque sensor; 5. first shaft; 501. convex plate; 6. second shaft; 7. first rotating frame; 8. second rotating frame; 9. lifting frame; 10. rotating rod; 11. vertical rod; 12. slide; 13. inner rod; 14. bottom block; 15. slide; 16. connecting plate; 17. spring; 18. screw; 19. slider; 20. support rod; 21. pressure plate; 22. bottom groove; 23. bottom rod; 24. gear; 25. belt; 26. shelf plate; 27. pressure strip. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0032] Example 1:

[0033] The present invention provides a fan motor life test device, such as Figures 1 to 7 As shown, the apparatus comprises a base frame 1, with a mounting frame 2 disposed on top. Mounting frame 2 utilizes support components to support the motor body 3 to be tested. Mounting frame 2 is mounted on top of base frame 1 using sliding components. A torque sensor 4 is disposed on the front side of motor body 3. A first shaft 5 at the output end of motor body 3 is plugged into the interior of a second shaft 6 at the output end of torque sensor 4. Torque sensor 4 is connected to an external display screen via wires. Torque sensor 4 is conventional technology, model JN2000B. It detects the torsional moment of various rotating or non-rotating mechanical components. Torque sensor 4 converts physical changes in torque into precise electrical signals, facilitating the lifespan testing of motor body 3.

[0034] After the torque sensor 4 is defined, the motor body 3 is placed on the supporting component at the top of the placement rack 2, and the motor body 3 is moved up and down by using the supporting component until the first shaft 5 at the output end of the motor body 3 corresponds to the second shaft 6 at the output end of the torque sensor 4. The sliding component causes the placement rack 2 to move backward, and the backward placement rack 2 uses the supporting component to drive the motor body 3 to move backward until the first shaft 5 at the output end of the motor body 3 is correspondingly inserted into the second shaft 6 at the output end of the torque sensor 4, that is, the protrusion 501 at the rear end of the first shaft 5 is correspondingly inserted into the slot at the front end of the second shaft 6.

[0035] The motor body 3 is connected to an external power supply, and the torque sensor 4 is connected to an external display screen using a wire. The motor body 3 is started, and the first shaft 5 at the output end of the motor body 3 rotates. The rotating first shaft 5 causes the second shaft 6 at the output end of the torque sensor 4 to rotate. At this time, the torque sensor 4 converts the physical change of torque into an accurate electrical signal, and displays the physical change of torque through the display screen, completing the life detection of the motor body 3.

[0036] The supporting components include a first rotating frame 7, a second rotating frame 8, a lifting frame 9, a rotating rod 10 and a vertical rod 11; the first rotating frame 7 and the second rotating frame 8 are arranged opposite to each other, and the bottom ends of the first rotating frame 7 and the second rotating frame 8 are connected with telescopic components, and the telescopic components at the bottom end of the first rotating frame 7 fit with the telescopic components at the bottom of the second rotating frame 8, and the rotating rod 10 is inserted through the center of the telescopic components, and both ends of the rotating rod 10 are inside the sliding grooves 12 on the front and rear sides of the lifting frame 9, and the vertical rods 11 are fixed at the four corners of the top surface of the lifting frame 9, and the first nut is screwed on the top end of the vertical rod 11. The vertical rod 11 drives the rotating rod 10 to move up and down by the lifting frame 9, and the movement of the rotating rod 10 is used to adjust the inclination angle of the first rotating frame 7 and the second rotating frame 8. A screw 18 is screwed through the front and rear sides of the lifting frame 9, and the screw 18 screws through the ends of the two rotating rods 10. The rotating screw 18 makes the two rotating rods 10 move closer to or away from each other inside the sliding groove 12. Figure 5 As shown, the placement rack 2 is configured as a "concave" shaped structure as a whole, and top rods 202 are provided on both inner tops of the placement rack 2, and both ends of the top rods 202 are connected to the placement rack 2 using side edges 201, and the top ends of the first rotating rack 7 and the second rotating rack 8 are both sleeved on the surface of the top rods 202.

[0037] The motor body 3 is placed on the top of the telescopic components of the first rotating frame 7 and the second rotating frame 8. Since the screw 18 is in a limited state, the two telescopic components are in contact with each other at this time, and the distance between the two rotating rods 10 is the shortest. If the motor body 3 is a cylindrical structure, the vertical rod 11 is pulled upward, and the vertical rod 11 that moves upward uses the lifting frame 9 to drive the rotating rod 10 to move upward synchronously. Since the screw 18 cooperates with the limited rotating rod 10, the rotating rod 10 that moves upward drives the bottom end of the telescopic components to move upward synchronously. Since the first rotating frame 7 and the second rotating frame 8 are both connected to the telescopic components, the bottom end of the telescopic components that move upward drives the first rotating frame 7 and the second rotating frame 8 to rotate. At this time, the first rotating frame 7 and the second rotating frame 8 rotate on the surface of the top rod 202, and the top surface of the first rotating frame 7 and the second rotating frame 8 rotates from inclined to horizontal. At this time, the two telescopic components drive the motor body 3 to move upward until the first shaft 5 at the output end of the motor body 3 corresponds to the second shaft 6 at the output end of the torque sensor 4. The first nut is rotated so that the first nut is in contact with the top surface of the two ends of the placement frame 2, which facilitates the limitation of the vertical rod 11.

[0038] If the motor body 3 is a square columnar structure, the telescopic component drives the motor body 3 to move upward while rotating the screw 18. The rotating screw 18 causes the two rotating rods 10 to move away from each other, and the moving rotating rod 10 drives the telescopic component to move. At this time, the telescopic component approaches the first rotating frame 7 and / or the second rotating frame 8 until the top surface of the telescopic component is in contact with the side surface of the motor body 3. The telescopic component is used to stabilize the motor body 3 on the top of the supporting component to prevent the motor body 3 from rotating on the top of the two supporting components.

[0039] By moving the lifting frame 9 up and down, the first shaft 5 at the output end of the motor body 3 is made to correspond to the second shaft 6 at the output end of the torque sensor 4, and the rotation of the screw 18 is used to make the top surface of the telescopic component fit with the side of the motor body 3 with different shapes, so that it is convenient to install motor bodies 3 with different shapes on the top of the supporting component, and it is convenient to perform life detection on motor bodies 3 with various shapes.

[0040] exist Figure 3 and Figure 6In the figure, the telescopic component includes an inner rod 13, a bottom block 14, a slide 15, a connecting plate 16, and a spring 17. Both the first rotating frame 7 and the second rotating frame 8 are provided with an inner groove. The top end of the inner rod 13 is correspondingly inserted into the inner groove. The bottom end of the inner rod 13 is connected to the bottom block 14. The slide 15 is fixed to the top surface of the bottom block 14. The rotating rod 10 passes through the center of the bottom block 14. The top end of the inner rod 13 is connected to the connecting plate 16. A spring 17 is sleeved on the surface of the inner rod 13. The bottom end of the spring 17 is connected to the bottom of the inner groove, and the top end of the spring 17 is connected to the bottom surface of the connecting plate 16. The top surfaces of the first rotating frame 7 and the second rotating frame 8 are both provided with slides 15, and the two slides 15 are arranged opposite each other. The motor body 3 is placed on the top surfaces of the two slides 15. When the upward lifting frame 9 drives the rotating rod 10 to move upward, the rotating rod 10 drives the bottom end of the bottom block 14 to move upward. Since the top end of the bottom block 14 is inserted into the inner groove by the inner rod 13, and the first rotating frame 7 and the second rotating frame 8 are both in an inclined rotation, the upward bottom block 14 gradually approaches the first rotating frame 7 and / or the second rotating frame 8. At this time, the first rotating frame 7 and the second rotating frame 8 rotate towards each other, and the two rotating bottom blocks 14 both use the slide plate 15 to drive the motor body 3 to move upward. At this time, the top end of the inner rod 13 drives the connecting plate 16 to move upward inside the inner groove, and the connecting plate 16 cooperates to pull the spring 17 on the surface of the inner rod 13 until the first shaft rod 5 at the output end of the motor body 3 corresponds to the second shaft rod 6 at the output end of the torque sensor 4, which is convenient for placing motor bodies 3 with different outer diameters on the top of the support component.

[0041] exist Figure 1 and Figure 7 In the embodiment, the sliding components include two sliders 19, a support rod 20, and a pressure plate 21; sliders 19 are provided on both sides of the placement frame 2, and the inner side of the sliders 19 is connected to the side of the placement frame 2 by a connecting rod, and the top surface of the base frame 1 is provided with a bottom groove 22 that slides with the sliders 19. The support rod 20 is fixed to the top surface of the slider 19, and a pressure plate 21 is provided on the top of the placement frame 2. The two ends of the pressure plate 21 correspond to the two support rods 20 one by one. The end of the pressure plate 21 is sleeved on the surface of the support rod 20, and a second nut is screwed on the surface of the support rod 20. The bottom surface of the second nut is in contact with the top surface of the pressure plate 21. The screw fit between the second nut and the support rod 20 causes the bottom surface of the pressure plate 21 to be pressed against the top of the motor body 3. A bottom rod 23 is screwed in at the center of the slider 19, and gears 24 are fixed to both ends of the bottom rod 23. A belt 25 is sleeved on the outside of the two gears 24 on the front side of the base frame 1. After the motor body 3 is placed on the top of the supporting component of the placement rack 2, the pressure plate 21 moves down on the surface of the two support rods 20 due to gravity until the bottom surface of the pressure plate 21 is in contact with the surface of the motor body 3. The second nut is rotated, and the bottom surface of the second nut is in contact with the top surface of the pressure plate 21, completing the definition of the motor body 3. The second nut is spirally matched with the support rod 20, which facilitates the pressure plate 21 to cooperate with the supporting component to clamp motor bodies 3 of different shapes. While the first shaft rod 5 corresponds to the second shaft rod 6, the motor body 3 is prevented from shifting or rotating on the top of the supporting component.

[0042] After completing the limitation of the motor body 3, rotate the gear 24, and the rotating gear 24 uses the belt 25 to make the adjacent gears 24 rotate synchronously. The rotating gear 24 drives the bottom rod 23 to rotate, and the rotating bottom rod 23 makes the slider 19 slide inside the bottom groove 22. The sliding slider 19 uses the connecting rod to drive the placement rack 2 to move backward synchronously until the convex plate 501 at the rear end of the first shaft rod 5 is correspondingly inserted into the slot at the front end of the second shaft rod 6.

[0043] exist Figure 1 and Figure 7 In the figure, a frame plate 26 is fixed to the top surface of the front side of the chassis 1. The torque sensor 4 is placed in a groove on the top surface of the frame plate 26. A pressure strip 27 is installed on the top of the frame plate 26 using bolts. The bottom surface of the pressure strip 27 is in contact with the top surface of the torque sensor 4. The torque sensor 4 is placed in the groove on the top of the frame plate 26, and the corresponding cover of the pressure strip 27 is placed on the top of the frame plate 26. The pressure strip 27 is fixed to the top of the frame plate 26 using bolts. At this time, the torque sensor 4 is fixed to the top of the frame plate 26.

[0044] Example 2:

[0045] The present invention also provides a fan motor life test method, referring to Figures 1 to 7As shown, the test method applies the fan motor life test device described above, including the following steps: S1, placing the torque sensor 4 inside the groove at the top of the frame 26, placing the corresponding cover of the pressure strip 27 on the top of the frame 26, and fixing the pressure strip 27 to the top of the frame 26 with bolts. At this time, the torque sensor 4 is fixed on the top of the frame 26; S2, placing the motor body 3 on the top surface of the two slides 15, pulling the vertical rod 11 up, and the vertical rod 11 drives the rotating rod 10 to move up and down using the lifting frame 9. The moving rotating rod 10 uses the telescopic component to make the motor body 3 move synchronously, and at this time, the screw 18 is rotated. The rotation of the screw 18 makes the two rotating rods 10 approach or move away from each other, so that the first shaft rod 5 at the output end of the motor body 3 corresponds to the second shaft rod 6 at the output end of the torque sensor 4, and the first nut is rotated so that the first nut fits the top surface of the two ends of the placement frame 2; S3, the pressure plate 21 moves down on the surface of the two support rods 20 by gravity until the pressure plate 2 1, the bottom surface of the second nut is fitted with the surface of the motor body 3, the second nut is rotated, the bottom surface of the second nut is fitted with the top surface of the pressure plate 21, and the limitation of the motor body 3 is completed; S4, the gear 24 is rotated, and the rotating gear 24 uses the belt 25 to make the adjacent gears 24 rotate synchronously, and the rotating gear 24 drives the bottom rod 23 to rotate, and the rotating bottom rod 23 makes the slider 19 slide inside the bottom groove 22, and the sliding slider 19 uses the connecting rod to drive the placement rack 2 to move backward synchronously until the first shaft rod 5 at the output end of the motor body 3 corresponds to the second shaft rod 6 at the output end of the torque sensor 4; S5, the motor body 3 is connected to an external power supply, and the motor body 3 is started. The first shaft rod 5 at the output end of the motor body 3 rotates, and the rotating first shaft rod 5 makes the second shaft rod 6 at the output end of the torque sensor 4 rotate. At this time, the torque sensor 4 converts the physical change of torque into an accurate electrical signal, and displays the physical change of torque through the display screen, completing the life detection of the motor body 3.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. A fan motor life test device, comprising a base frame (1), characterized in that: The top of the base frame (1) is provided with a placement frame (2), the inner side of the placement frame (2) uses a supporting component to support the motor body (3) to be tested, and the placement frame (2) is installed on the top of the base frame (1) using a sliding component. A torque sensor (4) is provided on the front side of the motor body (3), and the first shaft (5) at the output end of the motor body (3) is correspondingly plugged into the inside of the second shaft (6) at the output end of the torque sensor (4), and the torque sensor (4) is connected to the display screen externally using a wire; the supporting component includes a first rotating frame (7), a second rotating frame (8), a lifting frame (9), a rotating rod (10) and a vertical rod (11); the first rotating frame (7) and the second rotating frame (8) are connected to each other. The first rotating frame (7) and the second rotating frame (8) are both connected to the bottom ends of the telescopic parts, and the telescopic parts at the bottom end of the first rotating frame (7) fit the telescopic parts at the bottom end of the second rotating frame (8), and a rotating rod (10) is inserted through the center of the telescopic parts, and both ends of the rotating rod (10) are inside the sliding grooves (12) on the front and rear sides of the lifting frame (9), and vertical rods (11) are fixed at the four corners of the top surface of the lifting frame (9), and the top end of the vertical rod (11) is spirally sleeved with a first nut. The vertical rod (11) drives the rotating rod (10) to move up and down by the lifting frame (9), and the movement of the rotating rod (10) is used to adjust the inclination angle of the first rotating frame (7) and the second rotating frame (8).

2. The fan motor life test device according to claim 1, characterized in that: The telescopic component comprises an inner rod (13), a bottom block (14), a slide plate (15), a connecting plate (16) and a spring (17); an inner groove is provided inside the first rotating frame (7) and the second rotating frame (8); the top end of the inner rod (13) is correspondingly inserted into the inner groove, the bottom end of the inner rod (13) is connected to the bottom block (14), the slide plate (15) is fixed to the top surface of the bottom block (14), and the rotating rod (10) passes through the center of the bottom block (14), the top end of the inner rod (13) is connected to the connecting plate (16), and the surface of the inner rod (13) is sleeved with a spring (17), the bottom end of the spring (17) is connected to the bottom of the inner groove, and the top end of the spring (17) is connected to the bottom surface of the connecting plate (16).

3. The fan motor life test device according to claim 2, characterized in that: The top surfaces of the first rotating frame (7) and the second rotating frame (8) are both provided with slides (15), and the two slides (15) are arranged opposite to each other, and the motor body (3) is placed on the top surfaces of the two slides (15) accordingly.

4. The fan motor life test device according to claim 3, characterized in that: The lifting frame (9) has screw rods (18) spirally passing through the front and rear sides, and the screw rods (18) spirally pass through the ends of the two rotating rods (10). The rotating screw rods (18) make the two rotating rods (10) move closer to or farther away from each other inside the sliding groove (12).

5. The fan motor life test device according to claim 4, characterized in that: The sliding component comprises two sliders (19), a support rod (20) and a pressure plate (21); sliders (19) are provided on both sides of the placement frame (2); the inner side surfaces of the sliders (19) are connected to the side surfaces of the placement frame (2) by connecting rods, and the top surface of the bottom frame (1) is provided with a bottom groove (22) that slides with the sliders (19); the support rods (20) are fixed to the top surface of the sliders (19); a pressure plate (21) is provided on the top of the placement frame (2); the two ends of the pressure plate (21) correspond to the two support rods (20) one by one, the end of the pressure plate (21) is sleeved on the surface of the support rod (20), and a second nut is spirally sleeved on the surface of the support rod (20), the bottom surface of the second nut is in contact with the top surface of the pressure plate (21), and the spiral cooperation between the second nut and the support rod (20) causes the bottom surface of the pressure plate (21) to be pressed against the top of the motor body (3).

6. The fan motor life test device according to claim 5, characterized in that: A bottom rod (23) is screwed into the center of the slider (19), gears (24) are fixed to both ends of the bottom rod (23), and belts (25) are sleeved on the outside of the two gears (24) on the front side of the chassis (1).

7. The fan motor life test device according to claim 6, characterized in that: A frame plate (26) is fixed to the top surface of the front side of the base frame (1), the torque sensor (4) is placed in the groove on the top surface of the frame plate (26), and a pressure strip (27) is installed on the top of the frame plate (26) by means of bolts, and the bottom surface of the pressure strip (27) is in contact with the top surface of the torque sensor (4).

8. A fan motor life test method, characterized by: The test method is applied to the fan motor life test device according to claim 7, comprising the following steps: S1. Place the torque sensor (4) inside the groove on the top of the frame plate (26), place the corresponding cover of the pressure strip (27) on the top of the frame plate (26), and use bolts to fix the pressure strip (27) to the top of the frame plate (26). At this time, the torque sensor (4) is fixed on the top of the frame plate (26); S2. Place the motor body (3) on the top surface of the two slides (15), pull the vertical rod (11) upward, and the vertical rod (11) drives the rotating rod (10) to move up and down by using the lifting frame (9). The moving rotating rod (10) uses the telescopic component to make the motor body (3) move synchronously. At this time, rotate the screw rod (18). The rotation of the screw rod (18) makes the two rotating rods (10) approach or move away from each other, so that the first shaft rod (5) at the output end of the motor body (3) corresponds to the second shaft rod (6) at the output end of the torque sensor (4). Rotate the first nut so that the first nut fits the top surface of the two ends of the placement frame (2); S3, the pressing plate (21) moves downward on the surfaces of the two support rods (20) by gravity until the bottom surface of the pressing plate (21) fits with the surface of the motor body (3), and the second nut is rotated so that the bottom surface of the second nut fits with the top surface of the pressing plate (21), thereby completing the restriction of the motor body (3); S4, rotating the gear (24), the rotating gear (24) uses the belt (25) to make the adjacent gears (24) rotate synchronously, the rotating gear (24) drives the bottom rod (23) to rotate, the rotating bottom rod (23) makes the slider (19) slide inside the bottom groove (22), and the sliding slider (19) drives the placement rack (2) to move backward synchronously using the connecting rod until the first shaft (5) at the output end of the motor body (3) corresponds to the second shaft (6) at the output end of the torque sensor (4); S5. Connect the motor body (3) to an external power supply, start the motor body (3), and rotate the first shaft (5) at the output end of the motor body (3). The rotating first shaft (5) causes the second shaft (6) at the output end of the torque sensor (4) to rotate. At this time, the torque sensor (4) converts the physical change of the torque into an accurate electrical signal, and displays the physical change of the torque on a display screen, thereby completing the life detection of the motor body (3).

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