Permanent magnet roller motor testing device

Abstract

The invention belongs to the technical field of roller motor detection, and particularly relates to a permanent magnet roller motor testing device which is characterized in that the permanent magnet roller motor testing device comprises a base, a pushing assembly and a performance testing assembly, the pushing assembly is arranged in the base, and the performance testing assembly is controlled by the pushing assembly; the performance testing assembly comprises a magnetic load block and a gravity load block, the effect of sequentially pushing different load blocks to test a motor is achieved through mutual cooperation of a pushing lead screw and a return lead screw, the pushing lead screw rotates to drive a pushing plate to slide forwards, a sliding block moves forwards, and the performance of the motor is tested. A driven transmission wheel and a main transmission wheel control a first transmission belt to conduct transmission, a power-assisted gear and a power pushing plate move together, when the power-assisted gear moves to the tail end of a supporting column, teeth of the power-assisted gear and teeth of a stress gear are meshed, the stress gear rotates, a middle pushing lead screw rotates reversely, and the power-assisted gear is driven to rotate. The return lead screw rotates in the direction opposite to that of the body pushing lead screw, and the return lead screw controls the return driving wheel to rotate.

Description

Technical Field

[0001] The invention belongs to the technical field of drum motor detection, in particular to a permanent magnet drum motor testing device. Background Art

[0002] The drum motor is a new type of drive device that places the drum motor and the reducer together inside the drum body. It is mainly used in fixed and mobile belt conveyors, replacing traditional electric motors, and separate drive devices with the reducer outside the drive drum. The electric drum has many advantages such as compact structure, high transmission efficiency, low noise, long service life, smooth operation, reliable operation, good sealing, small space occupation, easy installation, and is suitable for working in various harsh environmental conditions. In the process of manufacturing electric drums, it is necessary to test the load capacity of the drum motor. Generally, different loads are applied to the electric drum to simulate the working conditions of the electric drum under different loads, and then the speed sensor is used to test the speed of the electric drum under different loads to test the working performance of the drum motor under different loads.

[0003] When the permanent magnet drum motor testing device in the prior art performs a load test on the drum motor, it is necessary to manually fix the load block on the electric drum. Since it is necessary to simulate the working conditions of the drum motor under different loads, the load block needs to be installed on the electric drum multiple times. The existing installation method of the load block is relatively inefficient, which affects the test efficiency of the drum motor.

[0004] To this end: the present invention provides a permanent magnet drum motor testing device. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: a permanent magnet drum motor test device described in the present invention comprises a base, a pushing assembly and a performance test assembly, wherein the pushing assembly is arranged inside the base, the performance test assembly is controlled by the pushing assembly, and the performance test assembly comprises a magnetic load block and a gravity load block; When performing a load test on the drum motor, it is necessary to manually fix the load block on the electric drum. Since it is necessary to simulate the working conditions of the drum motor under different loads, it is necessary to install the load block on the electric drum multiple times. All operations are carried out on the base. Start the motor and let the motor run for a period of time in a no-load state to observe the operation of the motor. The pushing component is used to control the movement of the load block. The performance test component is used to detect the working conditions of the motor without load and with loads with different influences installed on the motor. During the test, the influence of the magnetic load block on the motor can be changed by changing the current, and the working state of the motor during the test can be achieved by changing the gravity of the gravity load block. By changing the influence of the load on the permanent magnet drum motor, the effect of testing the working state of the motor under different influences is achieved.

[0007] Preferably, the pushing assembly also includes a pushing groove opened on the side of the base, a pushing slide rail is opened on the upper surface of the base, a slider is slidably connected to the inner wall of the pushing slide rail, a plurality of pushing screw rods are arranged inside the pushing groove, the outer wall of the pushing screw rod is threadedly connected to the inner wall of the slider, both ends of the pushing screw rod are sliding areas with smooth surfaces, the inner wall of the slider is slidably connected to the sliding areas at both ends of the pushing screw rod, a power pushing plate is fitted on the outer wall of one of the sliders, the inner wall of the power pushing plate is threadedly connected to the outer wall of the pushing screw rod, a moving groove is opened on the outer wall of the power pushing plate, a support plate and a support column are fixedly installed on the inner wall of the pushing groove, and the outer wall of the support plate It is slidably connected to the inner wall of the movable groove, the front half of the support column is threaded, and the rear half is a smooth cylinder, the inner wall of the power pushing plate is threadedly connected to the outer wall of the front half of the support column, and the inner wall of the power pushing plate is slidably connected to the outer wall of the rear half of the support column, the outer wall of the support column is fixedly connected with a slave transmission wheel, one of the outer walls of the pushing screw rods is fixedly connected with the main transmission wheel, and the first transmission belt is transmission-connected between the outer walls of the slave transmission wheel and the main transmission wheel, one end of the support column is threadedly connected with a power gear, the outer wall of the power pushing plate is provided with a current socket, and the inner wall of one of the pushing slide rails is provided with a current interface, and the inner wall of the current interface and the outer wall of the current socket are plugged into each other.The other push screw is provided with a threaded hole inside, and the outer wall of the threaded hole is threadedly connected to a return screw, and the outer wall of the return screw is fixedly connected to a return driving wheel, and the outer wall of the push screw with a power pushing plate is fixedly connected to a return driven wheel, and a second transmission belt is transmission-connected between the outer walls of the return driving wheel and the return driven wheel, and one end of the push screw is fixedly connected to a force-bearing gear, and the teeth of the force-bearing gear mesh with the teeth of the power-assisting gear to ensure the normal operation of the motor, gradually increase the load, and increase a certain amount of load each time to observe the changes in parameters such as the motor's speed, current, and power. The changes can be observed by adjusting the resistance or Torque is used to increase the load. During the loading process, it is necessary to observe whether the motor has abnormal vibration, noise, overheating and other phenomena. If any abnormal situation occurs, the test should be stopped immediately to check the cause of the motor failure. When testing the influence of the load on the motor, first control the push screw with the power push plate to rotate. At this time, the power push plate will slide forward on the support plate along the push screw, and the slider on the push screw also moves forward on the push track surface. The slave drive wheel and the main drive wheel control the first drive belt transmission. The power push plate controls the support column to rotate with it through the first drive belt. Because the power-assisting gear and the support column are threadedly connected, This power-assisting gear will move with the power push plate. When the power-assisting gear moves to the tail end of the support column and is on a smooth column, the power-assisting gear and the force-bearing gear are just in the same plane and the teeth are meshed with each other. At this time, the power-assisting gear no longer moves, but rotates instead. The force-bearing gear also rotates due to meshing with it. When the power-assisting gear and the force-bearing gear are in the same plane, the current socket is inserted into the interior of the current interface. At this time, the magnetic load block is fed with current to generate a magnetic field, which can interfere with the magnetic field of the permanent magnet through the external magnetic field, thereby increasing the load of the motor. This method requires professional equipment and technology, and care must be taken to avoid irreversible damage to the permanent magnet of the motor. Damage, when testing the influence of the magnetic field on the motor, the middle push screw rotates in the opposite direction of the support column. Because the return screw is threadedly connected to the threaded hole, the return screw rotates in the opposite direction to the push screw. The return screw controls the rotation of the return driving wheel, and the return driving wheel controls the rotation of the return driven wheel through the second transmission belt, thereby controlling the first push screw to rotate in the opposite direction to the initial direction. At this time, the first slider controls the return of the magnetic load block and the second slider will control one of the gravity load blocks to move forward. Through the cooperation between the push screw and the return screw, different load blocks are pushed in sequence to test the motor.

[0008] Preferably, a third transmission belt is transmitted and connected between the outer walls of the other two pushing screws, and a telescopic cylinder is installed on the outer wall of the base, and the output shaft of the telescopic cylinder is in contact with the outer wall of one of the sliders, and the outer wall of one of the sliders is fixedly connected to the magnetic load block, and the outer walls of the remaining two sliders are provided with a card block, and the outer wall of the card block is slidably connected to the gravity load blocks of different gravity. First, the telescopic cylinder is started, and when the output shaft of the telescopic cylinder is extended, the first slider is pushed to move the slider from the smooth section of the pushing screw to the threaded section, and then the load block is driven forward by each slider. When the second pushing screw rotates to move the slider on its surface, the third pushing screw also rotates with the second pushing screw through the third conveyor belt, and the slider located on its surface moves forward with the gravity load blocks of different gravity, but the slider and the gravity load block are slidably connected. Therefore, when necessary, the gravity load block can be separated from the slider. Through the above structure, the effect of controlling the simultaneous movement of the gravity load blocks is achieved.

[0009] Preferably, a group of U-shaped clamps are installed on the surface of the base, a detection body is installed between the inner walls of the U-shaped clamps, a support frame is installed on the surface of the base, a toggle column is rotatably connected between the inner walls of the support frame, a plurality of toggle members are arranged on the outer wall of the toggle column, a power member is installed on the upper surface of the base, an active gear ring is installed on the output shaft of the power member, a driven gear ring is installed on the outer wall of one end of the toggle column, the active gear ring is meshed with the teeth of the passive gear ring, the performance test assembly also includes a load storage box, the outer wall of the load storage box is clamped with the outer wall of the detection body, and the outer wall of the load storage box is slidably connected with a cover, to ensure that the motor is firmly installed and reliably connected to the test equipment, to check whether the wiring of the motor is correct, and to avoid wiring errors. The test results are inaccurate or the motor is damaged. Prepare suitable load equipment, such as dynamometers, brakes, etc. Use a U-shaped clamp to firmly install the test body to be tested, start the test body, let the test body run for a period of time in a no-load state, observe the operation of the test body, ensure that the test body operates normally, then install the load on the test body and observe the operation again. When the gravity load moves close to the test body, the power part starts to control the driven gear ring through the active gear ring to drive the shaft of the support frame to rotate, and then controls the toggle part through the support frame shaft to push the gravity load into the load storage box, cover it with a lid and then conduct testing, and install loads of different gravity on the test body through the toggle part, which achieves the effect of automating the installation of the load.

[0010] The beneficial effects of the present invention are as follows: 1. A permanent magnet drum motor testing device described in the present invention, through the mutual cooperation of the push screw and the return screw, has the effect of pushing different load blocks in sequence to test the motor. The push screw rotates the power push plate to slide forward, the slider moves forward, the slave transmission wheel and the main transmission wheel control the first transmission belt transmission, the power-boosting gear will move with the power push plate, and when the power-boosting gear moves to the tail end of the support column, the power-boosting gear and the force-bearing gear teeth engage with each other. At this time, the power-boosting gear rotates, and the force-bearing gear also rotates. The current socket is inserted into the interior of the current interface to make the magnetic load block magnetic field, the middle push screw rotates in the opposite direction, the return screw rotates in the opposite direction to the main body push screw, the return screw controls the return driving wheel to rotate, and the return driving wheel controls the return driven wheel to rotate through the second transmission belt, thereby controlling the first push screw to rotate in the opposite direction to the initial direction. At this time, the first slider controls the return of the magnetic load block and the second slider will control one of the gravity load blocks to move forward.

[0011] 2. The permanent magnet drum motor testing device described in the present invention controls the falling and stopping of solid waste by adjusting the column to move the opening piece and the closing piece. Treatment barrels are placed on the three ports of the triangular transfer piece. When the triangular transfer piece rotates, the adjusting column on one of the treatment barrels touches the opening piece and controls the rotation of the opening piece. When the opening piece rotates, the solid waste falls into the treatment barrel. As the treatment barrel gradually becomes heavier, the downward pressure causes the triangular transfer piece to rotate, thereby causing another adjusting column to move the closing piece to rotate, and the solid waste stops falling at this time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below in conjunction with the accompanying drawings.

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the support frame structure of the present invention; Figure 3 The present invention Figure 2 The enlarged structural diagram at A in the middle; Figure 4 It is a schematic diagram of the structure of the detection body of the present invention; Figure 5 It is a schematic diagram of the base structure of the present invention; Figure 6 The present invention Figure 5 Enlarge the structural diagram at B; Figure 7 It is a schematic diagram of the internal structure of the base of the present invention; Figure 8 It is a schematic diagram of the structure of the push screw rod of the present invention; Fig. 9It is a schematic diagram of the structure of the power push plate of the present invention; Fig.10 It is a schematic diagram of the structure of the current socket of the present invention; Fig.11 The present invention Figure 5 Enlarge the structural diagram at C; Fig.12 It is a schematic diagram of the threaded hole structure of the present invention.

[0014] In the figure: 1, base; 100, push assembly; 101, push slot; 102, push rail; 105, slider; 106, push screw; 107, power push plate; 108, moving slot; 109, support plate; 110, support column; 111, slave drive wheel; 112, main drive wheel; 113, first drive belt; 114, power gear; 115, current socket; 116, current interface; 117, threaded hole; 118, return screw; 119, return driving wheel; 12 0, return driven wheel; 121, second transmission belt; 122, force gear; 123, third transmission belt; 124, telescopic cylinder; 200, performance test assembly; 201, magnetic load block; 202, gravity load block; 203, clamping block; 204, load storage box; 206, cover; 300, U-shaped clamp; 301, detection body; 302, support frame; 303, toggle column; 304, toggle member; 305, power member; 306, driving gear ring; 307, driven gear ring. DETAILED DESCRIPTION

[0015] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0016] like Figure 1 and Figure 5 As shown, a permanent magnet drum motor testing device according to an embodiment of the present invention includes a base 1, a pushing assembly 100 and a performance testing assembly 200. The pushing assembly 100 is arranged inside the base 1. The performance testing assembly 200 is controlled by the pushing assembly 100. The performance testing assembly 200 includes a magnetic load block 201 and a gravity load block 202.

[0017] During operation, when the drum motor is subjected to a load test, it is necessary to manually fix the load block on the electric drum. Since it is necessary to simulate the working condition of the drum motor under different loads, it is necessary to install the load block on the electric drum multiple times. All operation processes are performed on the base 1. The motor is started and allowed to run for a period of time in a no-load state to observe the running condition of the motor. The pushing component 100 is used to control the movement of the load block. The performance testing component 200 is used to detect the working condition of the motor without load and with loads of different influences installed on the motor. During the test, the influence of the magnetic load block on the motor can be changed by changing the magnitude of the current. The working condition of the motor during the test can be achieved by changing the gravity of the gravity load block 202. By changing the influence of the load on the permanent magnet drum motor, the effect of testing the working condition of the motor under different influences is achieved.

[0018] like Figures 5 to 12As shown, the pushing assembly 100 also includes a pushing groove 101 opened on the side of the base 1, a pushing slide rail 102 is opened on the upper surface of the base 1, and a slider 105 is slidably connected to the inner wall of the pushing slide rail 102, and a plurality of pushing screw rods 106 are arranged inside the pushing groove 101, and the outer wall of the pushing screw rod 106 is threadedly connected to the inner wall of the slider 105, and both ends of the pushing screw rod 106 are sliding areas with smooth surfaces, and the inner wall of the slider 105 is slidably connected to the sliding areas at both ends of the pushing screw rod 106, and a power pushing plate 107 is fitted on the outer wall of one of the sliders 105, and the inner wall of the power pushing plate 107 is threadedly connected to the outer wall of the pushing screw rod 106, and the outer wall of the power pushing plate 107 is opened with a moving groove 108, and a support plate 109 and a support column 110 are fixedly installed on the inner wall of the pushing groove 101, and the outer wall of the support plate 109 The wall is slidably connected to the inner wall of the movable groove 108, the front half of the support column 110 is threaded, and the rear half is a smooth cylinder. The inner wall of the power pushing plate 107 is threadedly connected to the outer wall of the front half of the support column 110, and the inner wall of the power pushing plate 107 is slidably connected to the outer wall of the rear half of the support column 110. The outer wall of the support column 110 is fixedly connected with a slave transmission wheel 111, and the outer wall of one of the pushing screw rods 106 is fixedly connected with a main transmission wheel 112, and a first transmission belt 113 is transmission-connected between the outer walls of the slave transmission wheel 111 and the main transmission wheel 112. One end of the support column 110 is threadedly connected with a power gear 114, and the outer wall of the power pushing plate 107 is provided with a current socket 115, and the inner wall of one of the pushing slide rails 102 is provided with a current interface 116, and the inner wall of the current interface 116 and the outer wall of the current socket 115 are plugged into each other. A threaded hole 117 is provided inside the other pushing screw rod 106, and a return screw rod 118 is threadedly connected to the outer wall of the threaded hole 117, and a return driving wheel 119 is fixedly connected to the outer wall of the return screw rod 118. The outer wall of the pushing screw rod 106 equipped with a power pushing plate 107 is fixedly connected to a return driven wheel 120, and a second transmission belt 121 is transmission-connected between the return driving wheel 119 and the outer wall of the return driven wheel. One end of the pushing screw rod 106 is fixedly connected to a force-bearing gear 122, and the teeth of the force-bearing gear 122 mesh with the teeth of the power-assisting gear 114.

[0019] When working, ensure that the motor operates normally, gradually increase the load, increase a certain amount of load each time, and observe the changes in the motor's speed, current, power and other parameters. The load can be increased by adjusting the resistance or torque of the load device. During the loading process, pay attention to observe whether the motor has abnormal vibration, noise, overheating and other phenomena. If any abnormal situation occurs, the test should be stopped immediately to check the cause of the motor failure. When testing the influence of the load on the point motor, first control the push screw 106 installed with the power push plate 107 to rotate. At this time, the power push plate 107 will slide forward along the push screw 106 on the support plate 109, and the push screw 106 will rotate. The slider 105 on the wire feeding rod 106 also moves forward on the surface of the pushing track, and the slave transmission wheel 111 and the main transmission wheel 112 control the first transmission belt 113 to transmit the power. The power pushing plate 107 controls the support column 110 to rotate together with it through the first transmission belt 113. Because the power-assisting gear 114 and the support column 110 are threadedly connected, the power-assisting gear 114 will move together with the power pushing plate 107. When the power-assisting gear 114 moves to the tail end of the support column 110 and is in a smooth column, the power-assisting gear 114 and the force-bearing gear 122 are just in the same plane and the teeth are meshed with each other. At this time, the power-assisting gear 114 no longer moves The force gear 122 also rotates due to meshing with the force gear 114. When the power-assisting gear 114 and the force-bearing gear 122 are located in the same plane, the current socket 115 is inserted into the current interface 116. At this time, the magnetic load block 201 is fed with current to generate a magnetic field, which can interfere with the magnetic field of the permanent magnet through the external magnetic field, thereby increasing the load of the motor. This method requires professional equipment and technology, and care should be taken to avoid irreversible damage to the permanent magnet of the motor. When testing the influence of the magnetic field on the motor, the middle push screw 106 rotates in the opposite direction of the support column 110. Because the return screw 118 is in contact with the threaded hole 116, the return screw 118 is in contact with the threaded hole 116. 17 is threadedly connected, so the return screw 118 rotates in the opposite direction to the push screw 106, the return screw 118 controls the return driving wheel 119 to rotate, the return driving wheel 119 controls the return driven wheel 120 to rotate through the second transmission belt 121, thereby controlling the first push screw 106 to rotate in the opposite direction to the initial direction, at this time, the first slider 105 controls the magnetic load block 201 to return and the second slider 105 will control one of the gravity load blocks 202 to move forward, through the mutual cooperation of the push screw 106 and the return screw 118, the effect of pushing different load blocks in turn to test the motor is achieved.

[0020] like Figures 5 to 7As shown, a third transmission belt 123 is connected between the outer walls of the other two push screw rods 106, a telescopic cylinder 124 is installed on the outer wall of the base 1, the output shaft of the telescopic cylinder 124 is in contact with the outer wall of one of the sliders 105, the outer wall of one of the sliders 105 is fixedly connected to the magnetic load block 201, and the outer walls of the remaining two sliders 105 are provided with a clamping block 203, and the outer wall of the clamping block 203 is slidably connected to the gravity load block 202 of different gravity.

[0021] During operation, the telescopic cylinder 124 is first started. When the output shaft of the telescopic cylinder 124 is extended, the first slider 105 is pushed, so that the slider 105 moves from the smooth section of the push screw 106 to the threaded section, and then the load block is driven forward by each slider 105. When the second push screw 106 rotates to move the slider 105 on its surface, the third push screw 106 also rotates with the second push screw 106 through the third conveyor belt, and the slider 105 located on its surface moves forward with the gravity load block 202 of different gravity, but the slider 105 and the gravity load block 202 are slidably connected. Therefore, when necessary, the gravity load block 202 can be separated from the slider 105. Through the above structure, the effect of controlling the simultaneous movement of the gravity load blocks 202 is achieved.

[0022] like Figures 1 to 4 As shown, a group of U-shaped clamps 300 are installed on the surface of the base 1, and a detection body 301 is installed between the inner walls of the U-shaped clamps 300, a support frame 302 is installed on the surface of the base 1, and a toggle column 303 is rotatably connected between the inner walls of the support frame 302, and a plurality of toggle members 304 are arranged on the outer wall of the toggle column 303, a power member 305 is installed on the upper surface of the base 1, and an active gear ring 306 is installed on the output shaft of the power member 305, and a driven gear ring 307 is installed on the outer wall of one end of the toggle column 303, and the active gear ring 306 is meshed with the teeth of the passive gear ring, and the performance test component 200 also includes a load storage box 204, the outer wall of the load storage box 204 is clamped with the outer wall of the detection body 301, and the outer wall of the load storage box 204 is slidably connected with a cover 206.

[0023] During operation, in order to ensure that the motor is firmly installed and reliably connected to the test equipment, check whether the wiring of the motor is correct to avoid inaccurate test results or damage to the motor due to wiring errors, prepare suitable load equipment, such as dynamometers, brakes, etc., and firmly install the detection body 301 to be tested with the U-shaped fixture 300, start the detection body 301, let the detection body 301 run for a period of time in a no-load state, observe the operation of the detection body 301, ensure that the detection body 301 operates normally, and then install the load on the detection body 301 to observe the operation again. When the gravity load moves close to the detection body 301, the power part 305 starts to control the driven gear ring 307 through the active gear ring 306 to drive the shaft of the support frame 302 to rotate, and then controls the toggle part 304 through the shaft of the support frame 302 to push the gravity load to the inside of the load storage box 204, cover it with the cover 206 and then test it, and install loads of different gravity on the detection body 301 through the toggle part 304, which achieves the effect of automatically installing the load.

[0024] Working principle: When performing a load test on the drum motor, it is necessary to manually fix the load block on the electric drum. Since it is necessary to simulate the working conditions of the drum motor under different loads, it is necessary to install the load block on the electric drum multiple times. All operations are performed on the base 1. To ensure that the motor is firmly installed and reliably connected to the test equipment, check whether the wiring of the motor is correct to avoid inaccurate test results or damage to the motor due to wiring errors. Prepare suitable load equipment, such as dynamometers, brakes, etc. The U-shaped fixture 300 firmly installs the test body 301 to be tested, starts the test body 301, and allows the test body 301 to run for a period of time in a no-load state. Observe the operation of the test body 301 to ensure that the test body 301 operates normally. , then install a load on the detection body 301 and observe the operation again. First, start the telescopic cylinder 124. When the output shaft of the telescopic cylinder 124 extends, push the first slider 105 to move the slider 105 from the smooth section of the push screw 106 to the threaded section. First, control the push screw 106 installed with the power push plate 107 to rotate. At this time, the power push plate 107 will slide forward along the push screw 106 on the support plate 109, and the slider 105 on the push screw 106 also moves forward on the push track surface. The slave transmission wheel 111 and the main transmission wheel 112 control the first transmission belt 113 to transmit. The power push plate 107 controls the support column 110 to rotate together with it through the first transmission belt 113. Because the power assist The gear 114 is threadedly connected to the support column 110, so the power-assisting gear 114 will move with the power push plate 107. When the power-assisting gear 114 moves to the tail end of the support column 110 and is in a smooth column, the power-assisting gear 114 and the force-bearing gear 122 are just in the same plane and the teeth are meshed with each other. At this time, the power-assisting gear 114 no longer moves, but rotates, and the force-bearing gear 122 also rotates due to the meshing with it. When the power-assisting gear 114 and the force-bearing gear 122 are in the same plane, the current socket 115 is inserted into the current interface 116. At this time, the magnetic load block 201 is fed with current to generate a magnetic field, which can interfere with the magnetic field of the permanent magnet through the external magnetic field, thereby increasing the load of the motor. This method requires professional Equipment and technology should be used, and care should be taken to avoid irreversible damage to the permanent magnet of the motor. When testing the influence of the magnetic field on the motor, the middle push screw 106 rotates in the opposite direction to the support column 110. Because the return screw 118 is threadedly connected to the threaded hole 117, the return screw 118 rotates in the opposite direction to the push screw 106. The return screw 118 controls the return driving wheel 119 to rotate. The return driving wheel 119 controls the return driven wheel 120 to rotate through the second transmission belt 121, thereby controlling the first push screw 106 to rotate in the opposite direction to the initial direction. At this time, the first slider 105 controls the magnetic load block 201 to return, and the second slider 105 will control one of the gravity load blocks 202 to move forward.Then, each slider 105 drives the load block to move forward. When the second push screw 106 rotates to move the slider 105 on its surface, the third push screw 106 also rotates with the second push screw 106 through the third conveyor belt. The slider 105 on its surface moves forward with the gravity load block 202 of different gravity. When the gravity load moves close to the detection body 301, the power member 305 starts to control the driven gear ring 307 through the active gear ring 306 to drive the shaft of the support frame 302 to rotate. Then, the toggle member 304 is controlled by the shaft of the support frame 302 to push the gravity load to the inside of the load storage box 204, and it is covered with the cover 206 for subsequent detection. However, the slider 105 and the gravity load block 202 are connected by sliding, so when necessary, the gravity load block 202 can be separated from the slider 105.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A permanent magnet drum motor testing device, characterized in that: It comprises a base (1), a pushing component (100) and a performance testing component (200), wherein the pushing component (100) is arranged inside the base (1), and the performance testing component (200) is controlled by the pushing component (100); The performance testing assembly (200) comprises a magnetic load block (201) and a gravity load block (202).

2. The permanent magnet drum motor testing device according to claim 1 is characterized in that: The pushing assembly (100) further comprises a pushing groove (101) formed on the side of the base (1); a pushing slide rail (102) is formed on the upper surface of the base (1); a slider (105) is slidably connected to the inner wall of the pushing slide rail (102); a plurality of pushing screw rods (106) are disposed inside the pushing groove (101); and the outer wall of the pushing screw rod (106) is threadedly connected to the inner wall of the slider (105); Both ends of the push screw (106) are sliding areas with smooth surfaces, and the inner wall of the slider (105) is slidably connected to the sliding areas at both ends of the push screw (106).

3. The permanent magnet drum motor testing device according to claim 2, characterized in that: A power push plate (107) is fitted on the outer wall of one of the sliders (105), the inner wall of the power push plate (107) is threadedly connected to the outer wall of the push screw (106), a movable groove (108) is formed on the outer wall of the power push plate (107), a support plate (109) and a support column (110) are fixedly mounted on the inner wall of the push groove (101), and the outer wall of the support plate (109) is slidably connected to the inner wall of the movable groove (108); The front half of the support column (110) is threaded, and the rear half is a smooth column; the inner wall of the power push plate (107) is threadedly connected to the outer wall of the front half of the support column (110); and the inner wall of the power push plate (107) is slidably connected to the outer wall of the rear half of the support column (110).

4. The permanent magnet drum motor testing device according to claim 3 is characterized in that: The outer wall of the support column (110) is fixedly connected to a slave transmission wheel (111), the outer wall of one of the push screw rods (106) is fixedly connected to a main transmission wheel (112), a first transmission belt (113) is transmission-connected between the outer walls of the slave transmission wheel (111) and the main transmission wheel (112), and one end of the support column (110) is threadedly connected to a power assist gear (114).

5. The permanent magnet drum motor testing device according to claim 3 is characterized in that: The outer wall of the power push plate (107) is provided with a current socket (115), the inner wall of one of the push slide rails (102) is provided with a current interface (116), and the inner wall of the current interface (116) is plugged into the outer wall of the current socket (115).

6. The permanent magnet drum motor testing device according to claim 3 is characterized in that: A threaded hole (117) is formed inside the other push screw (106), the outer wall of the threaded hole (117) is threadedly connected to a return screw (118), the outer wall of the return screw (118) is fixedly connected to a return driving wheel (119), the outer wall of the push screw (106) on which the power push plate (107) is installed is fixedly connected to a return driven wheel (120), a second transmission belt (121) is transmission-connected between the return driving wheel (119) and the outer wall of the return driven wheel, and one end of the push screw (106) is fixedly connected to a force-bearing gear (122); The teeth of the force-bearing gear (122) mesh with the teeth of the power-assisting gear (114).

7. The permanent magnet drum motor testing device according to claim 3 is characterized in that: A third transmission belt (123) is connected between the outer walls of the other two push screw rods (106), and a telescopic cylinder (124) is installed on the outer wall of the base (1), and the output shaft of the telescopic cylinder (124) is in contact with the outer wall of one of the sliders (105).

8. The permanent magnet drum motor testing device according to claim 2, characterized in that: The outer wall of one of the sliders (105) is fixedly connected to the magnetic load block (201), and the outer walls of the remaining two sliders (105) are provided with clamping blocks (203), and the outer walls of the clamping blocks (203) are slidably connected to gravity load blocks (202) of different gravity.

9. The permanent magnet drum motor testing device according to claim 1, characterized in that: A group of U-shaped clamps (300) are installed on the surface of the base (1), a detection body (301) is installed between the inner walls of the U-shaped clamps (300), a support frame (302) is installed on the surface of the base (1), a toggle column (303) is rotatably connected between the inner walls of the support frame (302), and a plurality of toggle members (304) are arranged on the outer wall of the toggle column (303); A power member (305) is mounted on the upper surface of the base (1); an output shaft of the power member (305) is mounted with a driving gear ring (306); an outer wall of one end of the shifting column (303) is mounted with a driven gear ring (307); the driving gear ring (306) meshes with teeth of the driven gear ring.

10. The permanent magnet drum motor testing device according to claim 1, characterized in that: The performance test assembly (200) further comprises a load storage box (204), the outer wall of the load storage box (204) being snap-fitted to the outer wall of the detection body (301), and the outer wall of the load storage box (204) being slidably connected to a cover (206).

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