Motor detection device

Abstract

The invention relates to the technical field of motor detection, in particular to a motor detection device which comprises an aluminum profile frame, a measuring unit and a load unit. The measuring unit is fixedly arranged at the top of the aluminum profile frame and is used for motor detection; the load unit is fixedly arranged at the top of the aluminum profile frame, located at the bottom of the measuring unit and used for motor detection load condition adjustment. A detected output shaft of a motor drives a coupler, a middle rotating shaft, a metering wheel and a power wheel to rotate in a left bearing seat and a right bearing seat, and in the rotating process of the metering wheel, an inductive probe continuously monitors the number of rotation turns and the rotation speed of the metering wheel so as to detect the number of rotation turns of the output shaft of the motor from the beginning of rotation to the fastest rotation speed. And the acceleration performance of the motor is explored.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of motor detection, and particularly relates to a motor detection device. BACKGROUND

[0002] A motor, commonly known as a motor, is an electromagnetic device for realizing electric energy conversion or transmission according to the electromagnetic induction law. The motor generally comprises a stator and a rotor, the stator comprises a stator core and a coil winding wound on the stator core, the rotor comprises a rotating shaft and a rotor core sleeved on the rotating shaft, and a permanent magnet is arranged on the outer edge of the rotor core. The motor is generally divided into a direct-current motor and an alternating-current motor, and a motor acceleration performance index is crucial in actual use. At present, when the motor acceleration performance is explored, small-load and large-load detection of the motor is usually carried out, and the parameter detection is carried out according to the needs of the motor in specific use scenarios. It is inconvenient to switch the load value at will between the small load and the large load, so that the data range that can be detected by the existing detection device is small, and people obtain less specific data of the motor acceleration. SUMMARY

[0003] The application provides the following technical scheme: a motor detection device, comprising: an aluminum profile frame; a measurement unit fixedly arranged at the top of the aluminum profile frame and used for motor detection; a load unit fixedly arranged at the top of the aluminum profile frame and located at the bottom of the measurement unit and used for motor detection condition adjustment.

[0004] As a preferred scheme of the application, the measurement unit comprises: a cast iron platform fixedly installed at the top of the aluminum profile frame; bearing seats fixedly installed at the left and right ends of the top of the cast iron platform; a middle rotating shaft rotatably installed in the interiors of the left and right bearing seats and penetrating through the left and right middle rotating shafts; a metering wheel fixedly installed on the outer wall of the middle rotating shaft and located at one end of the cast iron platform; a sheet metal support fixedly installed at the top of the cast iron platform; an inductive probe fixedly installed in the interior of the sheet metal support and located at the top of the metering wheel; a shaft coupling fixedly installed at one end of the middle rotating shaft away from the metering wheel.

[0005] As a preferred scheme of the application, the load unit comprises: a variable torque shell fixedly installed in the interior of the aluminum profile frame; An input shaft is rotatably mounted at one end of the torque converter housing and extends into the interior of the torque converter housing; The idler wheel is fixedly installed on the outer wall of the input shaft at the end away from the torque converter housing; A drive wheel is fixedly installed at the end of the central shaft away from the coupling. A power belt is fitted around the idler wheel and the drive wheel.

[0006] As a preferred embodiment of the present invention, the load unit further includes: A square tube is fixedly installed at the end of the input shaft away from the idler wheel and located inside the torque converter housing; The torsion shafts are symmetrically distributed on both sides of the square tube about the center of the idler wheel, and are rotatably mounted to the square tube via bearings. The torsion shafts extend into the interior of the square tube, and there are multiple sets of torsion shafts on the left and right sides, with equal distances between any two adjacent torsion shafts on the left and right sides. A torque-changing blade is fixedly installed at the end of the torsion shaft away from the square tube.

[0007] As a preferred embodiment of the present invention, the load unit further includes: A torque-changing gear, which is fixedly mounted on the outer wall of two torsion shafts; A lead screw, which is rotatably mounted inside a square tube and located on top of a torque-changing gear; A slider is threadedly connected to the outer wall of a lead screw, and the top of the slider is slidably connected to the inner side of the top of a square tube. A rack is fixedly installed at the bottom of the slider, and the rack is adapted to the specifications of the torque-changing gear.

[0008] As a preferred embodiment of the present invention, the load unit further includes: Driven gear, the driven gear is fixedly installed on the outer wall of the lead screw at the end away from the input shaft; A torsion bar is rotatably mounted inside the end of the square tube away from the input shaft and extends into the interior of the square tube, the torsion bar being located at the bottom of the driven gear; The driving gear is fixedly mounted on the outer wall of the torsion bar and meshes with the driven gear.

[0009] As a preferred embodiment of the present invention, the load unit further includes: Torque limiting block, which is fixedly installed on the outer wall of the torsion shaft; Guide posts are fixedly installed on the inner walls of both sides of the square tube, and there are multiple guide posts. A torsion limiting sheet metal block is slidably mounted on the outer wall of the guide post, and the torsion limiting sheet metal block is slidably connected to the two guide posts. A torque-limiting groove is formed at the bottom of the torque-limiting sheet metal block, and the inner wall of the torque-limiting groove is engaged with the outer wall of the torque-limiting block.

[0010] As a preferred embodiment of the present invention, the load unit further includes: The mounting hole is located in the middle of one side of the torque limiting sheet metal block near the torque converter blade. Magnet one, which is fixedly installed inside the mounting hole; Magnet 2 is fixedly installed on one side of the slider near the torque-limiting sheet metal block.

[0011] As a preferred embodiment of the present invention, a spring is sleeved around the guide post, the spring is fixedly installed between the torsion limiting sheet metal block and the inner wall of the square tube, and a handwheel is fixedly installed at the end of the torsion bar away from the drive gear.

[0012] As a preferred embodiment of the present invention, a spoiler is integrally formed on the inner wall of the torque converter housing, and the number of spoilers is multiple, and the multiple spoilers are distributed at equal distances around the inner wall of the torque converter housing.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention detects the number of rotations of the motor output shaft to drive the coupling, intermediate shaft, measuring wheel and power wheel to rotate inside the left and right bearing seats. During the rotation of the measuring wheel, the sensing probe continuously monitors the number of rotations and the rotation speed of the measuring wheel to detect the number of rotations of the motor output shaft from the start of rotation to the fastest rotation speed, and explores the acceleration performance of the motor.

[0014] 2. This invention drives the torque converter blades to rotate 90° by a torsion shaft, making the torque converter blades horizontal. This increases the resistance of the damping oil to the rotation of the torque converter blades, thereby increasing the load on the motor output shaft. In other words, the number of rotations required for the motor output shaft to reach its maximum rotational speed from start-up increases, and the number of rotations required for the sensing probe's measuring wheel to reach its maximum rotational speed also increases. This allows us to investigate the number of rotational accelerations required for the motor's transmission shaft to reach its maximum rotational speed under load.

[0015] 3. When it is necessary to further increase the motor load, continue to turn the handwheel. In the same process as above, the slider drives the rack and magnet to move inside the square tube. Rotate the remaining torque converter blades one by one by 90° according to the testing requirements, thereby adjusting the load intensity of the motor during the testing process, so as to better explore the acceleration performance of the motor. It should be noted that since multiple baffles are evenly distributed on the inner wall of the torque converter housing, the damping oil can be suppressed from rotating along the inside of the torque converter housing when the torque converter blades rotate, so that the damping effect on the torque converter blades is better.

[0016] 4. When the rack and the torque-changing gear disengage, the torque-changing gear rotates exactly 90°, that is, the torque-changing blade is in a horizontal state. At this time, the second magnet moves away from the end of the first magnet, the magnetic attraction received by the first magnet disappears, the spring rebound force in the stored state is released, and the torque-limiting sheet metal block and the torque-limiting groove move along the outer wall of the guide post in a direction away from the slider. The torque-limiting groove is once again stuck on the outer periphery of the torque-limiting block, limiting the torque of the torsion shaft and the torque-changing blade. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the aluminum profile frame of the present invention; Figure 3 This is a cross-sectional view of the torque converter housing of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of a partial structure; Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A; Figure 6 This is a partial structural schematic diagram of the load unit of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the unfolded state structure; Figure 8 For the present invention Figure 7 A magnified structural diagram at point B in the middle.

[0018] In the diagram: 100, aluminum profile frame; 200, measuring unit; 201, cast iron platform; 202, bearing housing; 203, central shaft; 204, measuring wheel; 205, sheet metal bracket; 206, induction probe; 207, coupling; 300, load unit; 301, torque converter housing; 302, input shaft; 303, idler wheel; 304, drive wheel; 305, drive belt; 306, square tube; 307, torsion shaft; 308, torque converter blade. 309. Torque-changing gear; 3010. Lead screw; 3011. Slider; 3012. Rack; 3013. Driven gear; 3014. Torque bar; 3015. Drive gear; 3016. Torque-limiting block; 3017. Guide post; 3018. Torque-limiting sheet metal block; 3019. Torque-limiting groove; 3020. Mounting hole; 3021. Magnet one; 3022. Magnet two; 3023. Spring; 3024. Handwheel; 3025. Spoiler. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-8 The technical solution provided by the present invention specifically includes the following embodiments: A motor testing device includes an aluminum profile frame 100, a measuring unit 200, and a load unit 300. The measuring unit 200 is fixedly installed on the top of the aluminum profile frame 100 for motor testing. The load unit 300 is fixedly installed on the top of the aluminum profile frame 100 and located at the bottom of the measuring unit 200 for adjusting the load conditions for motor testing.

[0021] For further details, please refer to [link / reference]. Figure 3 As shown: The measuring unit 200 includes a cast iron plate 201, bearing seats 202, a central shaft 203, a measuring wheel 204, a sheet metal bracket 205, a sensing probe 206, and a coupling 207. The cast iron plate 201 is fixedly installed on the top of the aluminum profile frame 100. The bearing seats 202 are fixedly installed on the left and right ends of the top of the cast iron plate 201. The central shaft 203 is rotatably installed inside the left and right bearing seats 202 and passes through the left and right central shafts 203. The measuring wheel 204 is fixedly installed on the outer wall of the central shaft 203 and is located at one end of the cast iron plate 201. The sheet metal bracket 205 is fixedly installed on the top of the cast iron plate 201. The sensing probe 206 is fixedly installed inside the sheet metal bracket 205 and is located on the top of the measuring wheel 204. The coupling 207 is fixedly installed on the end of the central shaft 203 away from the measuring wheel 204.

[0022] Specifically, after fixing the motor to be tested on the top of the aluminum profile frame 100, the output shaft of the motor is connected to the intermediate shaft 203 through the coupling 207. After the motor is powered on, the motor is started, and the output shaft of the motor drives the coupling 207, the intermediate shaft 203, the measuring wheel 204 and the power wheel 304 to rotate inside the left and right bearing seats 202. During the rotation of the measuring wheel 204, the sensing probe 206 continuously monitors the number of rotations and the rotation speed of the measuring wheel 204 to detect the number of rotations of the motor output shaft from the start of rotation to the fastest rotation speed.

[0023] For further details, please refer to [link / reference]. Figures 3-6 As shown: The load unit 300 includes a torque converter housing 301, an input shaft 302, an idler pulley 303, a drive pulley 304, a drive belt 305, a square tube 306, a torsion shaft 307, and torque converter blades 308. The torque converter housing 301 is fixedly installed inside the aluminum profile frame 100. The input shaft 302 is rotatably installed at one end of the torque converter housing 301 and extends into the interior of the torque converter housing 301. The idler pulley 303 is fixedly installed on the outer wall of the input shaft 302 at the end away from the torque converter housing 301. The drive pulley 304 is fixedly installed on the end of the intermediate shaft 203 away from the coupling 207. The power belt 305 is sleeved around the idler wheel 303 and the power wheel 304. The square tube 306 is fixedly installed on the end of the input shaft 302 away from the idler wheel 303 and is located inside the torque converter housing 301. The torsion shafts 307 are symmetrically distributed on both sides of the square tube 306 about the center of the idler wheel 303 and are rotatably installed on the square tube 306 through bearings. The torsion shafts 307 extend into the interior of the square tube 306 and have multiple sets on the left and right sides. The distance between two adjacent torsion shafts 307 is equal. The torque converter blades 308 are fixedly installed on the end of the torsion shaft 307 away from the square tube 306.

[0024] Specifically, the output shaft of the detected motor drives the coupling 207, the intermediate shaft 203, the metering wheel 204, and the power wheel 304 to rotate inside the left and right bearing seats 202. The rotation of the power wheel 304 drives the idler wheel 303 and the input shaft 302 to rotate via the power belt 305. The rotation of the input shaft 302 drives the square tube 306, multiple torsion shafts 307, and multiple torque converter blades 308 to rotate together. When the torque converter blades 308 are in a vertical position (e.g., ... Figure 3 As shown in the diagram, the resistance of the torque converter blade 308 to the rotation of the torque converter housing 301 by the damping oil is small, that is, the resistance of the square tube 306 to the overall rotation is small. Under this condition, the load on the motor is small, so the motor output shaft can reach the fastest rotational speed with fewer rotations. If it is necessary to increase the load on the motor, the torque converter blade 308 is rotated 90° by the torsion shaft 307, so that the torque converter blade 308 is in a horizontal state. This makes the resistance of the damping oil on the rotation of the torque converter blade 308 larger, which in turn makes the load on the rotation of the motor output shaft larger. That is, the number of rotations required for the motor output shaft to reach the fastest rotational speed from start-up is larger, that is, the number of rotations required for the sensing probe 206 to detect the metering wheel 204 to reach the fastest rotational speed from start-up is larger. This allows us to investigate the number of rotations required for the motor to reach the fastest rotational speed under load, in order to test the acceleration performance of the motor.

[0025] For further details, please refer to [link / reference]. Figure 5 and Figure 8 As shown: The load unit 300 also includes a torque converter gear 309, a lead screw 3010, a slider 3011, a rack 3012, a driven gear 3013, a torsion bar 3014, and a driving gear 3015. The torque converter gear 309 is fixedly mounted on the outer wall of two torsion shafts 307. The lead screw 3010 is rotatably mounted inside the square tube 306 and located at the top of the torque converter gear 309. The slider 3011 is threadedly connected to the outer wall of the lead screw 3010, and the top of the slider 3011 is slidably connected to the inner top surface of the square tube 306. The rack 3012 is fixedly mounted on the bottom of the slider 3011. The rack 3012 and the torque converter gear 309... With compatible specifications, the driven gear 3013 is fixedly installed on the outer wall of the lead screw 3010 at the end away from the input shaft 302. The torsion bar 3014 is rotatably installed inside the square tube 306 at the end away from the input shaft 302 and extends into the interior of the square tube 306. The torsion bar 3014 is located at the bottom of the driven gear 3013. The driving gear 3015 is fixedly installed on the outer wall of the torsion bar 3014 and meshes with the driven gear 3013. A spoiler 3025 is integrally formed on the inner wall of the torque converter housing 301. There are multiple spoilers 3025, and the multiple spoilers 3025 are evenly distributed around the inner wall of the torque converter housing 301.

[0026] Specifically, rotating the handwheel 3024 drives the torsion bar 3014 to rotate. The rotation of the torsion bar 3014, through the meshing transmission of the driving gear 3015 and the driven gear 3013, drives the lead screw 3010 to rotate. Since the lead screw 3010 is threadedly connected to the slider 3011, the rotation of the lead screw 3010 causes the slider 3011 to move axially along the lead screw 3010. Simultaneously, the movement of the slider 3011 drives the rack 3012 to move, causing the rack 3012 to mesh with the torque converter gear 309, thereby driving the torque converter gear 309 to rotate. The rotation of the torque converter gear 309, through the torsion shaft 307, drives the torque limiting block 3016 and the torque converter blade 308 to rotate. As the slider 3011 and rack 3012 continue to move, the rack 3012 meshes with the torque converter gear 309... When disengaged, the torque converter gear 309 rotates exactly 90°, meaning the torque converter blades 308 are in a horizontal position. By rotating the handwheel 3024, the slider 3011 rotates, which in turn moves the rack 3012 and the second magnet 3022 inside the square tube 306. The remaining torque converter blades 308 are rotated 90° one by one according to the testing requirements, thereby adjusting the load intensity of the motor during the testing process to better explore the acceleration performance of the motor. It should be noted that because multiple baffles 3025 are evenly arranged on the inner wall of the torque converter housing 301, the rotation of the damping oil along the inside of the torque converter housing 301 can be suppressed when the torque converter blades 308 rotate, resulting in a better damping effect on the torque converter blades 308. Furthermore, when it is necessary to further increase the motor load, continue to rotate the handwheel 3024. Following the same process, the slider 3011 drives the rack 3012 and the second magnet 3022 to move inside the square tube 306, rotating the remaining torque converter blades 308 one by one by 90° according to the testing requirements. This adjusts the load intensity of the motor during the testing process, so as to better explore the acceleration performance of the motor. It should be noted that since multiple baffles 3025 are evenly arranged on the inner wall of the torque converter housing 301, the rotation of the damping oil along the inside of the torque converter housing 301 can be suppressed when the torque converter blades 308 rotate, so that the damping effect on the torque converter blades 308 is better.

[0027] For further details, please refer to [link / reference]. Figure 8 As shown: The load unit 300 also includes a torque-limiting block 3016, guide posts 3017, torque-limiting sheet metal blocks 3018, torque-limiting grooves 3019, mounting holes 3020, magnet one 3021, magnet two 3022, spring 3023, and handwheel 3024. The torque-limiting block 3016 is fixedly installed on the outer wall of the torsion shaft 307. The guide posts 3017 are distributed and fixedly installed on the inner walls of both sides of the square tube 306, and there are multiple of them. The torque-limiting sheet metal blocks 3018 are slidably installed on the outer wall of the guide posts 3017, and the torque-limiting sheet metal blocks 3018 are slidably connected to the two guide posts 3017. The torque-limiting groove 3019 is formed in the torque-limiting sheet metal block 3016. At the bottom of 018, the inner wall of the torque limiting groove 3019 engages with the outer wall of the torque limiting block 3016. The mounting hole 3020 is opened in the middle of the side of the torque limiting sheet metal block 3018 near the torque converter blade 308. Magnet 1 3021 is fixedly installed inside the mounting hole 3020, and magnet 2 3022 is fixedly installed on the side of the slider 3011 near the torque limiting sheet metal block 3018. A spring 3023 is sleeved around the guide post 3017. The spring 3023 is fixedly installed between the torque limiting sheet metal block 3018 and the inner wall of the square tube 306. A handwheel 3024 is fixedly installed at the end of the torsion bar 3014 away from the drive gear 3015.

[0028] Specifically, as slider 3011 moves rack 3012, it also moves magnet 3022. Magnet 3022 moves with slider 3011 to the end of magnet 3021. Under magnetic attraction, magnet 3022 is attracted to move closer to slider 3011. Simultaneously, magnet 3021 moves torsion limiting sheet metal block 3018 along the outer wall of guide post 3017, causing spring 3023 to be stretched and store elastic force. As torsion limiting sheet metal block 3018 moves towards slider 3011, it moves torsion limiting groove 3019, thus separating from torsion limiting block 3016, thereby releasing the torsion limiting effect on torsion shaft 307, allowing torque converter blade 308 to rotate. As 011 and rack 3012 continue to move, when rack 3012 disengages from torque converter gear 309, torque converter gear 309 rotates exactly 90°, meaning torque converter blade 308 is in a horizontal state. At this time, magnet 2 3022 moves away from the end of magnet 1 3021, the magnetic attraction of magnet 1 3021 disappears, and the spring 3023, which is in a stored state, releases its rebound force, pulling torque limiting sheet metal block 3018 and torque limiting groove 3019 along the outer wall of guide post 3017 away from slider 3011. Torque limiting groove 3019 is once again locked on the outer periphery of torque limiting block 3016, limiting the torque of torsion shaft 307 and torque converter blade 308 to prevent the rotated torque converter blade 308 from rotating again, thus improving the stability of torque converter blade 308.

[0029] When this device is in operation, after fixing the motor to be tested to the top of the aluminum profile frame 100, the output shaft of the motor is connected to the intermediate shaft 203 through the coupling 207. After the motor is powered on, it is started, and the output shaft of the motor drives the coupling 207, the intermediate shaft 203, the measuring wheel 204, and the power wheel 304 to rotate inside the left and right bearing seats 202. During the rotation of the measuring wheel 204, the sensing probe 206 continuously monitors the number of rotations and the rotation speed of the measuring wheel 204. The rotation of the power wheel 304 drives the idler wheel 303 and the input shaft 302 to rotate through the power belt 305. The rotation of the input shaft 302 drives the square tube 306, multiple torsion shafts 307, and multiple torque converter blades 308 to rotate together. The multiple torque converter blades 308 are initially in a vertical state (e.g., Figure 3 As shown), at this time, the resistance of the torque converter blade 308 to the rotation of the torque converter housing 301 is small, that is, the resistance of the square tube 306 to the overall rotation is small. Under this condition, the load on the motor is small. Therefore, the motor output shaft can reach the fastest rotation speed with fewer rotations. The number of rotations and speed of the motor are obtained by the induction probe 206 by monitoring the number of rotations and speed of the metering wheel 204. When testing the number of rotations required for the output shaft of a motor to reach its maximum rotational speed under load, firstly, the torsion bar 3014 is driven to rotate by turning the handwheel 3024. The rotation of the torsion bar 3014, through the meshing transmission of the driving gear 3015 and the driven gear 3013, drives the lead screw 3010 to rotate. Since the lead screw 3010 is threadedly connected to the slider 3011, the rotation of the lead screw 3010 causes the slider 3011 to move axially along the lead screw 3010. Simultaneously, the movement of the slider 3011 drives the rack 3012 and the second magnet 3022 to move. The second magnet 3022 will first move with the slider 3011 to the first magnet 302. At the end of 1, under magnetic attraction, the first magnet 3021 moves towards the slider 3011. Simultaneously, the first magnet 3021 drives the torsion-limiting sheet metal block 3018 to move along the outer wall of the guide post 3017, causing the spring 3023 to be stretched and store elastic force. Since the torsion-limiting sheet metal block 3018 moves towards the slider 3011, it drives the torsion-limiting groove 3019 to move as well, thus separating it from the torsion-limiting block 3016, thereby releasing the torsion-limiting effect on the torsion shaft 307. Next, the slider 3011 drives the rack 3012 and the second magnet 3022 to continue moving. The rack 3012 meshes with the torque-changing gear 309, thereby driving the torque-changing gear. When 309 rotates, the torque-changing gear 309 rotates, driving the torque-limiting block 3016 and the torque-changing blade 308 to rotate via the torsion shaft 307. As the slider 3011 and rack 3012 continue to move, when rack 3012 disengages from torque-changing gear 309, torque-changing gear 309 rotates exactly 90°, meaning the torque-changing blade 308 is in a horizontal state. At this time, magnet 2 3022 moves away from the end of magnet 1 3021, the magnetic attraction on magnet 1 3021 disappears, and the spring 3023, which is in a stored state, releases its rebound force, pulling the torque-limiting sheet metal block 3018 and the torque-limiting groove 3019 along the outer wall of guide post 3017 away from slider 3011. As the torque limiting groove 3019 moves, it gets stuck on the outer periphery of the torque limiting block 3016 again, limiting the torque of the torque shaft 307 and the torque converter blade 308. At this time, since the torque converter blade 308 becomes horizontal, the resistance of the damping oil to the rotation of the torque converter blade 308 increases, which increases the load on the motor output shaft. That is, the number of rotations required for the motor output shaft to reach the fastest rotation speed from start to finish increases. In other words, the number of rotations required for the sensing probe 206 to detect the metering wheel 204 to reach the fastest rotation speed from start to finish increases. This allows us to investigate the number of rotations required for the motor to reach the fastest rotation speed under load, and to test the acceleration performance of the motor. Furthermore, when it is necessary to further increase the motor load, continue to rotate the handwheel 3024. Following the same process, the slider 3011 drives the rack 3012 and the second magnet 3022 to move inside the square tube 306, rotating the remaining torque converter blades 308 one by one by 90° according to the testing requirements. This adjusts the load intensity of the motor during the testing process, so as to better explore the acceleration performance of the motor. It should be noted that since multiple baffles 3025 are evenly arranged on the inner wall of the torque converter housing 301, the damping oil can be suppressed from rotating along the inside of the torque converter housing 301 when the torque converter blades 308 rotate, so that the damping effect on the torque converter blades 308 is better.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A motor testing device, characterized in that, include: Aluminum profile frame (100); A measuring unit (200) is fixedly mounted on the top of the aluminum profile frame (100) for motor detection; The load unit (300) is fixedly installed on the top of the aluminum profile frame (100) and located at the bottom of the measuring unit (200) for adjusting the load conditions of the motor detection.

2. The motor testing device according to claim 1, characterized in that, The measuring unit (200) includes: A cast iron platform (201) is fixedly installed on the top of the aluminum profile frame (100); Bearing housing (202), the bearing housing (202) is fixedly installed on the left and right ends of the top of the cast iron base plate (201); The central shaft (203) is rotatably installed inside the left and right bearing seats (202) and passes through the left and right central shafts (203). Measuring wheel (204), the measuring wheel (204) is fixedly installed on the outer wall of the central shaft (203) and located at one end of the cast iron plate (201); A sheet metal bracket (205) is fixedly installed on the top of the cast iron base plate (201); The sensing probe (206) is fixedly installed inside the sheet metal bracket (205) and located on top of the measuring wheel (204); A coupling (207) is fixedly installed at the end of the central shaft (203) away from the metering wheel (204).

3. The motor testing device according to claim 2, characterized in that, The load unit (300) includes: A torque converter housing (301) is fixedly installed inside the aluminum profile frame (100); An input shaft (302) is rotatably mounted at one end of a torque converter housing (301) and extends into the interior of the torque converter housing (301); An idler wheel (303) is fixedly installed on the outer wall of the input shaft (302) at one end away from the torque converter housing (301); A drive wheel (304) is fixedly mounted on the end of the central shaft (203) away from the coupling (207); A power belt (305) is fitted around the idler wheel (303) and the power wheel (304).

4. The motor testing device according to claim 3, characterized in that, The load unit (300) further includes: A square tube (306) is fixedly installed at one end of the input shaft (302) away from the idler wheel (303) and located inside the torque converter housing (301); Torsion shaft (307) is symmetrically distributed on both sides of square tube (306) about the center of idler wheel (303), and is rotatably installed with square tube (306) through bearings. Torsion shaft (307) extends into the interior of square tube (306), and multiple sets of torsion shaft (307) are provided on the left and right sides, and the distance between two adjacent torsion shafts (307) on the left and right sides is equal. A variable torque blade (308) is fixedly installed at the end of the torsion shaft (307) away from the square tube (306).

5. The motor testing device according to claim 4, characterized in that, The load unit (300) further includes: A torque converter gear (309) is fixedly mounted on the outer wall of two torsion shafts (307); A lead screw (3010) is rotatably mounted inside a square tube (306) and located on top of a torque converter gear (309); The slider (3011) is threadedly connected to the outer wall of the lead screw (3010), and the top of the slider (3011) is slidably connected to the inner side of the top of the square tube (306). A rack (3012) is fixedly installed at the bottom of a slider (3011), and the rack (3012) is compatible with the specifications of a torque converter gear (309).

6. The motor testing device according to claim 5, characterized in that, The load unit (300) further includes: Driven gear (3013), said driven gear (3013) is fixedly installed on the outer wall of the lead screw (3010) at the end away from the input shaft (302); Torsion bar (3014), which is rotatably mounted inside the end of square tube (306) away from input shaft (302) and extends into the interior of square tube (306), the torsion bar (3014) being located at the bottom of driven gear (3013); The driving gear (3015) is fixedly mounted on the outer wall of the torsion bar (3014) and meshes with the driven gear (3013).

7. The motor testing device according to claim 6, characterized in that, The load unit (300) further includes: Torque limiting block (3016), the torsion limiting block (3016) is fixedly installed on the outer wall of the torsion shaft (307); Guide posts (3017) are fixedly installed on the inner walls of both sides of the square tube (306) and there are multiple guide posts (3017). Torque limiting sheet metal block (3018), the torsion limiting sheet metal block (3018) is slidably installed on the outer wall of the guide post (3017), and the torsion limiting sheet metal block (3018) is slidably connected to the two guide posts (3017); A torque limiting groove (3019) is formed at the bottom of a torque limiting sheet metal block (3018), and the inner wall of the torque limiting groove (3019) is engaged with the outer wall of a torque limiting block (3016).

8. The motor testing device according to claim 7, characterized in that, The load unit (300) further includes: Mounting hole (3020) is provided on the middle of one side of the torque limiting sheet metal block (3018) near the torque converter blade (308); Magnet 1 (3021), wherein magnet 1 (3021) is fixedly installed inside mounting hole (3020); Magnet 2 (3022) is fixedly installed on one side of the slider (3011) near the torque limiting sheet metal block (3018).

9. A motor testing device according to claim 8, characterized in that, A spring (3023) is sleeved around the guide post (3017). The spring (3023) is fixedly installed between the torsion limiting sheet metal block (3018) and the inner wall of the square tube (306). A handwheel (3024) is fixedly installed at the end of the torsion bar (3014) away from the drive gear (3015).

10. A motor testing device according to claim 9, characterized in that, A spoiler (3025) is integrally formed on the inner wall of the torque converter housing (301). There are multiple spoilers (3025), and the multiple spoilers (3025) are distributed at equal distances around the inner wall of the torque converter housing (301).

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