Impact resistance detection device and method for permanent magnet synchronous motor

Abstract

The invention discloses an impact resistance detection device and method for a permanent magnet synchronous motor, and the device comprises a testing machine table and a motor main body, the motor main body transversely slides above the testing machine table through a placement assembly, and is characterized in that an adjusting mechanism is arranged in front of the testing machine table close to the sliding position of the placement assembly; the adjusting mechanism can control the actual sliding distance of the placement assembly, a clamping mechanism is arranged at the position, close to the axis of the motor body, of one side of the testing machine table and erected on the inner side of a vertical frame, the vertical frame is arranged at one end of the testing machine table through a vibration isolation baffle, and four sets of clamping rollers are arranged at the position, close to the axis of the vertical frame, of the inner side of the clamping mechanism. The four sets of clamping rollers are distributed in an annular array mode, and four sets of regulation and control mechanisms are arranged at the positions, close to the clamping rollers, of the inner side of the vertical frame. The performance detection efficiency of the permanent magnet synchronous motor can be effectively improved, and the method is suitable for large-scale detection work.

Description

Technical Field

[0001] The present invention relates to the technical field of motor detection, and in particular to an impact resistance detection device and method for a permanent magnet synchronous motor. Background Art

[0002] Permanent magnet synchronous motors are commonly used in high-precision and high-efficiency applications such as electric vehicles and industrial drives. Their impact resistance detection is an important means to evaluate the structural strength and operation stability under harsh working conditions such as mechanical shock and vibration, mainly involving comprehensive tests of mechanical, electrical, and material properties, so that motor manufacturers, quality inspectors, or application engineers can ensure the reliability of the motor under harsh environments or sudden loads.

[0003] Currently, during the impact resistance collision detection of permanent magnet synchronous motors, the motor output shaft is usually directly connected to the detection shaft through a coupling, and the motor is started after the collision is completed to perform torque transmission detection. This detection method has various problems. One is that the coupling needs to be disassembled after the detection is completed, and the disassembly process is very time-consuming and laborious. This operation will affect the detection efficiency during the testing process of a large number of permanent magnet synchronous motors. The other is that when the motor is impacted, the impact force will be directly transmitted to the detection unit through the coupling, which will affect the accuracy of the detection unit, and in severe cases, it may even damage the detection unit.

[0004] Therefore, how to provide an impact resistance detection device and method for a permanent magnet synchronous motor is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] An object of the present invention is to provide an impact resistance detection device and method for a permanent magnet synchronous motor. The present invention can effectively improve the performance detection efficiency of the permanent magnet synchronous motor and is suitable for a large number of detection works.

[0006] According to the impact resistance detection device and method for a permanent magnet synchronous motor of an embodiment of the present invention, it includes a test bench and a motor body. The motor body slides horizontally above the test bench through a placement component. It is characterized in that an adjustment mechanism is provided in front of the test bench near the sliding position of the placement component. The adjustment mechanism can control the actual sliding distance of the placement component. A clamping mechanism is provided on one side of the test bench near the axis position of the motor body. The clamping mechanism is erected inside a vertical frame. The vertical frame is provided at one end of the test bench through a vibration isolation baffle. Four clamping rollers are provided near the axis position of the vertical frame inside the clamping mechanism. The four clamping rollers are distributed in a circular array. Four adjustment mechanisms are provided near the position of the clamping rollers inside the vertical frame;

[0007] The clamping mechanism includes a hoop, a transmission assembly and a frame plate. The hoop is rotatably mounted on the inner side of the frame through the transmission assembly. Both ends of the clamping rollers are rotatably mounted on the frame plate through bearing shafts. The rotation of the hoop drives the frame plate and four groups of clamping rollers through the transmission assembly to move with the center of the hoop as the vector to clamp the output shaft of the motor body.

[0008] Furthermore, the shaft rod at one end of the clamping roller is fixedly connected to the engaging teeth, the engaging teeth are meshed with the main heart teeth, and the main heart teeth are drivingly connected to the input end of the torque meter.

[0009] Furthermore, the transmission assembly also includes rib teeth, two groups of lateral teeth and rib rods. The two groups of lateral teeth are respectively fixed at both ends of the rib teeth, and the lateral teeth are limited and rotated in the vertical frame through the side ear seats.

[0010] Furthermore, the lateral teeth are meshed with the inner ring groove, the inner ring groove is arranged on the inner ring position of the hoop, one side of the rib teeth is meshed with a rib rod, the other side of the rib rod is slidably connected to the vertical frame through a limiting sliding rod, the top of the rib rod is fixedly connected to the bottom of the vertical frame plate, the two ends of the clamping roller are fixedly connected to the linkage teeth, the linkage teeth are engaged on the inner side of the linkage belt, and the four groups of clamping rollers are transmission connected to each other through the linkage teeth.

[0011] Furthermore, an external tooth groove is provided on the outer side of the hoop, and the external tooth groove meshes with the meshing teeth through a single tooth, and the meshing teeth are fixed on the output shaft of the electric motor, and the electric motor is fixedly connected to the vertical frame.

[0012] Furthermore, the regulating mechanism includes a driving wheel and a clamping slip ring, the driving wheel is rotatably mounted on the clamping slip ring, the other end of the clamping slip ring is fixedly connected to the telescopic slide rod, one side of the telescopic slide rod is fixedly connected to the output rod of the electric cylinder part, and the electric cylinder part is fixed on the surface of the vertical frame.

[0013] Furthermore, the abutting wheel is located between the two groups of electric cylinder parts, and the abutting wheel abuts against the outer end surface of the linkage belt.

[0014] Furthermore, the placement assembly includes a base and two sets of snap-fit ​​feet, the two sets of snap-fit ​​feet are arranged on the top of the base through screws, the base and the snap-fit ​​feet clamp the bottom of the motor body, the bottom of the base is slidably set on the slide rail on the top of the test machine through four sets of sliders, one side of the base is fixedly connected to the first buckle, and the other side of the base away from the first buckle is movably set with a second buckle by adjusting the screw.

[0015] Furthermore, the adjustment mechanism includes a resistance block, an active motor and a resistance rod. The test machine is located near the resistance block and has an adjustment slot. The resistance block slides laterally in the adjustment slot. The bottom of the resistance block is fixedly connected to a transmission base. The transmission base is transmission-connected to a threaded rod at the output end of the active motor. Connecting plates are also provided on both sides of the test machine. One side of the connecting plate is fixedly connected to several groups of resistance rods. The resistance rods slide through the test machine and the adjustment slot. The other side of the connecting plate is fixedly connected to the output rod of the actuator electric cylinder. The actuator electric cylinder and the test machine are fixedly connected.

[0016] The method for using the permanent magnet synchronous motor anti-shock detection device comprises the following steps:

[0017] S1. Place the motor body on the base and the top of the buckle foot, adjust the screw at the bottom of the buckle foot to make it cooperate with the base to clamp the support foot at the bottom of the motor body. During this process, the first buckle hoop covers the rear end of the motor body, and the adjusting screw is rotated to control the second buckle hoop to clamp the front end of the motor body;

[0018] S2, the active motor starts to drive the transmission base and the resistance block to move horizontally inside the adjustment slide slot, changing the actual position of the resistance block, and then the electric cylinder starts to drive several groups of resistance rods to move through the connecting plate, so that the resistance rods resist the position of the transmission base neck, thereby fixing the resistance block, and using the propulsion device to provide a constant thrust for the placement assembly, so that the base platform contacts the resistance block, completing the collision operation;

[0019] S3, the execution electric cylinder releases the clamping of the resistance rod on the resistance block, and the resistance block is driven by the active motor to continue to move forward, at this time, the placement component and the motor body are pushed, so that the output shaft of the motor body is located between the four groups of clamping rollers, and then the electric motor is started to drive the ring hoop to rotate inside the vertical frame through the transmission meshing effect of the meshing teeth and the external tooth grooves, and the inner ring groove at the inner ring position of the ring hoop will drive the lateral teeth to rotate, and the lateral teeth are fixed with the rib teeth, so that the rib teeth bite the rib rod, and the rib rod is displaced by force, and the rib rod pushes the vertical frame plate and the clamping roller to align and resist the output shaft of the motor body, and then the electric cylinder is started to drive the resistance wheel to resist the linkage belt through the telescopic slide rod and the clamping slip ring, completing the preparation work before the inspection;

[0020] S4. The output shaft of the motor body rotates to drive the clamping rollers to rotate. Linkage teeth are set at both ends of the four groups of clamping rollers. The linkage teeth are meshed with each other through the linkage belt and are tensioned under the action of the driving wheel. At this time, the four groups of clamping rollers rotate synchronously. The other end of the clamping roller is directly connected to the bite teeth. The bite teeth are meshed with the main heart teeth at this time. The main heart teeth rotate under force and transmit the actual torque to the torque meter for detection.

[0021] The beneficial effects of the present invention are:

[0022] The present invention arranges an adjustment mechanism on the top of the test machine near the direction of movement of the placement component, and the active motor drives the resistance block to move in the adjustment slide slot, so that the protrusion at the bottom of the base can contact the resistance blocks at different positions, thereby changing the impact force received by the motor body, and at the same time, the electric cylinder drives the resistance rod and the resistance block to contact each other, thereby improving the stability of the force received by the resistance block, thereby protecting the normal use of the active motor. Compared with the traditional test device, the present invention has higher flexibility and can adapt to different force impact tests;

[0023] The present invention provides a clamping mechanism and a clamping roller. After the test is completed, the ring hoop rotates to drive the lateral teeth to rotate through the inner ring groove. The rib teeth are forced to drive the rib rods to move. The rib rods drive the clamping rollers to approach the output shaft of the motor body through the vertical frame plate and resist. After the motor body rotates, the clamping rollers can drive the bite teeth to rotate. The main center teeth are forced to transmit the actual torque to the torque meter. On the contrary, the four groups of clamping rollers release the resisting clamping on the output shaft of the motor body. Compared with the traditional coupling connection method, the replacement operation of the motor body is more convenient, so it is suitable for large-scale testing work.

[0024] The present invention provides a linkage belt and a regulating mechanism, and linkage teeth are respectively provided at both ends of the clamping roller, and the linkage teeth are engaged with the inner ring position of the linkage belt. After the electric cylinder is started, the electric cylinder can drive the driving wheel to squeeze the linkage belt through the telescopic slide rod and the clamping slip ring, so that the linkage belt between the four groups of clamping rollers is tensioned to provide a better transmission effect. Under this effect, the clamping roller can effectively cooperate with the resistance of the output shaft of the motor body to prevent slippage between the clamping roller and the motor body from affecting the detection data of the actual torque meter. At the same time, the setting of the linkage belt can cooperate with the loosening of the regulating mechanism and the expansion operation of the four groups of clamping rollers. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the overall structure of the permanent magnet synchronous motor anti-shock detection device proposed by the present invention;

[0027] Figure 2 This is a schematic diagram of the disassembled structure of the permanent magnet synchronous motor anti-shock detection device proposed in the present invention.

[0028] Figure 3 This is a schematic diagram of the disassembled structure of the adjustment mechanism of the permanent magnet synchronous motor anti-shock detection device proposed by the present invention.

[0029] Figure 4 This is a schematic diagram of the internal structure of the vertical stand of the permanent magnet synchronous motor anti-shock detection device proposed by the present invention.

[0030] Figure 5 Schematic diagram of the disassembly structure of the regulation mechanism of the impact-resistant detection device for the permanent magnet synchronous motor proposed by the present invention.

[0031] Figure 6 Schematic diagram of the disassembly structure of the clamping mechanism of the impact-resistant detection device for the permanent magnet synchronous motor proposed by the present invention.

[0032] Figure 7 Schematic diagram of the back structure of the clamping mechanism of the impact-resistant detection device for the permanent magnet synchronous motor proposed by the present invention.

[0033] Figure 8 For the impact-resistant detection device for the permanent magnet synchronous motor proposed by the present invention Figure 5 Enlarged schematic diagram of the structure at point A.

[0034] In the figure: 1, test machine platform; 2, vibration isolation baffle; 3, placement assembly; 4, motor main body; 5, adjustment mechanism; 6, vertical frame; 7, clamping mechanism; 8, clamping roller; 9, regulation mechanism; 10, torque tester; 11, main core tooth; 12, engaging tooth;

[0035] 31, base platform; 32, slider; 33, fastening foot; 34, first buckle; 35, second buckle; 36, adjustment screw; 51, abutting block; 52, transmission base; 53, driving motor; 54, abutting rod; 55, connecting plate; 56, actuating cylinder; 57, adjustment chute; 71, hoop; 72, transmission component; 73, vertical frame plate; 74, linkage tooth; 75, linkage belt; 76, outer tooth groove; 77, engaging tooth; 78, electric motor; 91, abutting wheel; 92, telescopic slide rod; 93, cylinder part; 94, clamping slip ring;

[0036] 721, rib tooth; 722, side tooth; 723, inner ring groove; 724, rib rod. Detailed implementation manners

[0037] Now, the present invention will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner, so they only show the components related to the present invention.

[0038] Refer to Figures 1 - 8, comprising a test machine 1 and a motor body 4, the motor body 4 slides horizontally above the test machine 1 through a placement component 3, characterized in that an adjustment mechanism 5 is arranged in front of the test machine 1 near the sliding position of the placement component 3, and the adjustment mechanism 5 can control the actual sliding distance of the placement component 3, and a clamping mechanism 7 is arranged on one side of the test machine 1 near the axis of the motor body 4, and the clamping mechanism 7 is mounted on the inner side of a vertical frame 6, and the vertical frame 6 is arranged at one end of the test machine 1 through a vibration isolation baffle 2, and four groups of clamping rollers 8 are arranged on the inner side of the clamping mechanism 7 near the axis of the vertical frame 6, and the four groups of clamping rollers 8 are distributed in a ring array, and four groups of regulating mechanisms 9 are arranged on the inner side of the vertical frame 6 near the clamping rollers 8;

[0039] The clamping mechanism 7 includes a hoop 71, a transmission assembly 72 and a frame plate 73. The hoop 71 is rotatably mounted on the inner side of the vertical frame 6 through the transmission assembly 72. Both ends of the clamping rollers 8 are rotatably mounted on the frame plate 73 through bearing shafts. The rotation of the hoop 71 drives the frame plate 73 and the four groups of clamping rollers 8 to move with the center of the hoop 71 as the vector to clamp the output shaft of the motor body 4 through the transmission assembly 72.

[0040] In this embodiment, the motor body 4 is arranged on the placement component 3 and is stabilized by the placement component 3, and the placement component 3 can slide above the test machine 1 and be pushed by the propulsion device on one side of the test machine 1 to achieve the basic propulsion test purpose, and the test machine 1 is provided with an adjustment mechanism 5 in the movement direction close to the placement component 3. The existence of the adjustment mechanism 5 is to provide the placement component 3 with the purpose of stopping, and the adjustable adjustment mechanism 5 can realize the control of the actual sliding distance of the placement component 3, thereby changing the actual impact force. A vibration isolation baffle 2 is arranged between the test machine 1 and the vertical frame 6, and the vibration isolation baffle 2 provides a better shock absorption effect to the vertical frame 6 to prevent the vibration from affecting the internal structure of the vertical frame 6;

[0041] A clamping mechanism 7 is arranged at the axial position near the motor body 4 in the vertical frame 6. After the motor body 4 completes the collision test, the placement component 3 can slowly drive the output shaft of the motor body 4 to move to the position of the clamping mechanism 7, and the clamping mechanism 7 can then drive the clamping roller 8 to fit and conflict with the output shaft of the motor body 4. At this time, after the motor body 4 is driven, the rotation effect of the output shaft will directly drive the clamping roller 8 to rotate, so as to complete the subsequent torque output test operation, and an adjusting mechanism 9 is also arranged at the position of the vertical frame 6 near the clamping roller 8. The four groups of clamping rollers 8 all conflict with the output shaft of the motor body 4. The clamping rollers 8 can be made of high-damping materials such as rubber, and the four groups of clamping rollers 8 are connected to each other through the clamping mechanism 7. In this way, under the stability of the adjusting mechanism 9, the clamping rollers 8 can better conflict with the output shaft of the motor body 4, thereby preventing the clamping rollers 8 from slipping with the output shaft of the motor body 4 and affecting the actual test results.

[0042] refer toFigure 7 , the shaft rod at one end of the clamping roller 8 is fixedly connected to the engaging teeth 12, the engaging teeth 12 are meshed with the main core teeth 11, and the main core teeth 11 are drivingly connected to the input end of the torque tester 10.

[0043] In this embodiment, while the clamping roller 8 is driven to rotate by the motor main body 4, the clamping roller 8 can synchronously drive the engaging teeth 12 to rotate. The engaging teeth 12 are meshed with the main core teeth 11, and the main core teeth 11 are fixed to the input end of the torque tester 10, so that the main core teeth 11 drive the input end of the torque tester 10 to rotate. The rotation amount and torque are detected and recorded by the torque tester 10 to complete the basic test operation. At the same time, the engaging teeth 12 and the main core teeth 11 are connected by meshing. When the clamping roller 8 releases the output shaft of the motor main body 4, the engaging teeth 12 can be disengaged from the main core teeth 11, which will not interfere with the normal stretching movement of the clamping roller 8.

[0044] Reference Figure 6 , the transmission assembly 72 further includes rib teeth 721, two groups of lateral teeth 722 and a rib rod 724. The two groups of lateral teeth 722 are respectively fixed at both ends of the rib teeth 721, and the lateral teeth 722 are rotationally limited through side ear seats in the vertical frame 6. The lateral teeth 722 are meshed with the inner ring groove 723, and the inner ring groove 723 is opened at the inner ring position of the hoop 71. One side of the rib teeth 721 is meshed with the rib rod 724, and the other side of the rib rod 724 is slidably connected to the vertical frame 6 through a limiting slide bar. The top of the rib rod 724 is fixedly connected to the bottom of the vertical frame plate 73. The two ends of the clamping roller 8 are fixedly connected with linkage teeth 74, and the linkage teeth 74 are engaged at the inner side position of the linkage belt 75. The four clamping rollers 8 are drivingly connected to each other through the linkage teeth 74. An outer tooth groove 76 is also opened at the outer side position of the hoop 71, and the outer tooth groove 76 is meshed with the meshing teeth 77 through a single tooth. The meshing teeth 77 are fixed on the output shaft of the electric motor 78, and the electric motor 78 is fixedly connected to the vertical frame 6.

[0045] In this embodiment, during the rotation of the hoop 71, it can drive the lateral teeth 722 to rotate under force through the inner ring groove 723 on the inner ring surface. The lateral teeth 722 are fixed to the rib teeth 721. During the rotation of the rib teeth 721, the rib rod 724 is driven to move, so as to realize that the rib rod 724 drives the vertical frame plate 73 to approach or move away from the center of the vertical frame 6. During this process, the vertical frame plate 73 can drive the clamping roller 8 to approach or move away from the output shaft of the motor main body 4, so as to realize the stretching and retracting operation of the four clamping rollers 8 while rotating the hoop 71. An outer tooth groove 76 is provided on the outer ring of the hoop 71, and the outer tooth groove 76 is meshed with the meshing teeth 77 through a single tooth. The meshing teeth 77 are fixed to the output shaft of the electric motor 78. When the electric motor 78 starts to drive the meshing teeth 77 to rotate, the meshing effect of the single tooth will realize the rotation of the hoop 71 at the inner ring position of the vertical frame 6;

[0046] Linkage teeth 74 are fixed at both ends of the clamping roller 8, and one side of the four groups of clamping rollers 8 corresponds to four groups of linkage teeth 74. The four groups of linkage teeth 74 are connected and transmitted through a linkage belt 75. After a single group of clamping rollers 8 rotates, the four groups of clamping rollers 8 can be driven to rotate synchronously through the engagement of the linkage teeth 74 and the linkage belt 75. This effect can effectively prevent slipping caused by poor contact between a single group of clamping rollers 8 and the motor body 4, thereby effectively ensuring the accuracy of subsequent data detection.

[0047] refer to Figure 7 and Figure 8 The regulating mechanism 9 includes a moving wheel 91 and a clamping slip ring 94. The moving wheel 91 is rotatably mounted on the clamping slip ring 94. The other end of the clamping slip ring 94 is fixedly connected to the telescopic slide rod 92. One side of the telescopic slide rod 92 is fixedly connected to the output rod of the electric cylinder member 93. The electric cylinder member 93 is fixed to the surface of the vertical frame 6. The moving wheel 91 is located between the two groups of electric cylinder members 93, and the moving wheel 91 contacts the outer end surface of the linkage belt 75.

[0048] In this embodiment, after being started, the electric cylinder part 93 can drive the clamping slip ring 94 to move through the telescopic slide rod 92. The movement direction of the clamping slip ring 94 can be controlled by limiting the telescopic slide rod 92 by the vertical frame 6. At this time, driven by the clamping slip ring 94, the driving wheel 91 can effectively push the linkage belt 75, causing the linkage belt 75 to deform, thereby ensuring the bite effect between the linkage belt 75 and the linkage tooth 74, and preventing the linkage belt 75 and the linkage tooth 74 from slipping. At the same time, after releasing the contact of the driving wheel 91 with the linkage belt 75, the linkage belt 75 and the linkage tooth 74 are loosened, and the clamping roller 8 can better drive the linkage tooth 74 to expand outward, providing the clamping roller 8 with a certain activity effect while ensuring the synchronous transmission effect of the four groups of clamping rollers 8.

[0049] refer to Figure 2 The placement component 3 includes a base 31 and two groups of buckling feet 33. The two groups of buckling feet 33 are set on the top of the base 31 through screws. The base 31 and the buckling feet 33 clamp the bottom of the motor body 4. The bottom of the base 31 is slidably set on the slide rail on the top of the test machine 1 through four groups of sliders 32. One side of the base 31 is fixedly connected to the first buckle 34, and the other side of the base 31 away from the first buckle 34 is movably set with a second buckle 35 through an adjusting screw 36.

[0050] In this embodiment, the snap-fit ​​foot 33 is movably arranged on the base 31 through a screw. After the screw is rotated, the snap-fit ​​foot 33 can lean against the base 31, so that the snap-fit ​​foot 33 cooperates with the base 31 to clamp the support foot at the bottom of the motor body 4. At the same time, the first buckle 34 can be aligned and sleeved on the end position of the motor body 4, and the other side of the base 31 can drive the second buckle 35 to align with the other end of the motor body 4 after rotating the adjusting screw 36. At this time, the base 31 as a whole can provide the motor body 4 with better clamping and stabilizing operation, and the four sets of sliders 32 at the bottom of the base 31 are used to realize the sliding effect on the top of the test machine 1, so that the protrusion at the bottom of the base 31 is in contact with the adjustment mechanism 5 to complete the basic collision operation.

[0051] refer to Figure 3 The adjustment mechanism 5 includes a resistance block 51, an active motor 53 and a resistance rod 54. The test machine 1 is located near the resistance block 51 and has an adjustment slot 57. The resistance block 51 slides horizontally in the adjustment slot 57. The bottom of the resistance block 51 is fixedly connected to a transmission base 52. The transmission base 52 is transmission-connected to a threaded rod at the output end of the active motor 53. Connecting plates 55 are also provided on both sides of the test machine 1. One side of the connecting plate 55 is fixedly connected to a plurality of resistance rods 54. The resistance rods 54 slide through the test machine 1 and the adjustment slot 57. The other side of the connecting plate 55 is fixedly connected to the output rod of the actuator electric cylinder 56. The actuator electric cylinder 56 and the test machine 1 are fixedly connected.

[0052] When the impact strength needs to be adjusted, the active motor 53 is started to drive the transmission base 52 to move through the threaded rod. The transmission base 52 and the impact block 51 are fixed. Under the limit of the adjustment slide 57, the impact block 51 is displaced to move to different positions to meet different impact tests. In order to prevent the impact from damaging the transmission base 52 and the impact block 51, after the impact block 51 reaches the specified position, the execution electric cylinder 56 is started. The execution electric cylinder 56 can drive several groups of impact rods 54 to move inside the test machine 1 through the connecting plate 55, so that they extend out from the side of the adjustment slide 57 to impact the impact block 51, thereby providing the impact block 51 with a better impact effect and preventing the impact block 51 from damaging the connection structure between the threaded rod of the active motor 53 and the transmission base 52 due to the impact.

[0053] The method for using the permanent magnet synchronous motor anti-shock detection device comprises the following steps:

[0054] S1. Place the motor main body 4 on top of the base table 31 and the fastening feet 33. Adjust the screw at the bottom of the fastening feet 33 so that it cooperates with the base table 31 to clamp the feet at the bottom of the motor main body 4. During this process, the first buckle 34 sleeves the rear end of the motor main body 4, and rotate the adjusting screw 36 to control the second buckle 35 to clamp the front end of the motor main body 4;

[0055] S2. Start the driving motor 53 to drive the driving base 52 and the abutting block 51 to move horizontally inside the adjusting chute 57, changing the actual position of the abutting block 51. Subsequently, start the electric cylinder 56 to drive a plurality of sets of abutting rods 54 to move through the connecting plate 55, so that the abutting rods 54 abut against the neck position of the driving base 52, thereby fixing the abutting block 51. Use the propulsion device to provide a constant thrust to the placement component 3, so that the base table 31 contacts the abutting block 51 to complete the ramming operation;

[0056] S3. The electric cylinder 56 releases the clamping of the abutting rod 54 on the abutting block 51, and the abutting block 51 is driven by the driving motor 53 to continue to move forward. At this time, push the placement component 3 and the motor main body 4, so that the output shaft of the motor main body 4 is located between the four sets of clamping rollers 8. Subsequently, start the electric motor 78, and drive the hoop 71 to rotate inside the vertical frame 6 through the transmission meshing effect of the meshing teeth 77 and the external tooth groove 76. The inner ring groove 723 at the inner ring position of the hoop 71 will drive the lateral teeth 722 to rotate. The lateral teeth 722 are fixed to the rib teeth 721, so that the rib teeth 721 bite the rib rod 724. The rib rod 724 is displaced under force, and the rib rod 724 pushes the vertical frame plate 73 and the clamping rollers 8 to approach and abut against the output shaft of the motor main body 4. Subsequently, start the electric cylinder part 93 to drive the abutting wheel 91 to abut against the linkage belt 75 through the telescopic slide rod 92 and the clamping slide ring 94 to complete the preparation work before detection;

[0057] S4. The output shaft of the motor main body 4 rotates to drive the clamping rollers 8 to rotate. The two ends of the four sets of clamping rollers 8 are provided with linkage teeth 74. The linkage teeth 74 are meshed with each other through the linkage belt 75 and are tensioned under the action of the abutting wheel 91. At this time, the four sets of clamping rollers 8 rotate synchronously. The other end of the clamping roller 8 is directly connected to the meshing teeth 12. The meshing teeth 12 are meshed with the main core teeth 11 at this time. The main core teeth 11 are forced to rotate, and the actual torque is transmitted to the torque measuring instrument 10 for detection work.

[0058] Working principle: first, place the motor body 4 in the top slot of the base 31, twist the screw to drive the buckle foot 33 to engage with the bottom support foot of the motor body 4, during this process, the first buckle 34 will contact with the end of the motor body 4, and the other side of the base 31 will drive the second buckle 35 to contact the other end of the motor body 4 by twisting the adjustment screw 36, then start the active motor 53 to drive the transmission base 52 and the resistance block 51 to move inside the adjustment slide 57, after the resistance block 51 moves to the specified position, the execution electric cylinder 56 is started to drive several groups of resistance rods 54 to contact and lock the neck position of the resistance block 51 through the connecting plate 55, and the preparation work is completed;

[0059] The propulsion device at the rear end of the test machine 1 pushes the base 31 to move as a whole. The base 31 moves at high speed above the test machine 1 through the slider 32 until the cam at the bottom of the base 31 contacts the abutment block 51. The impact test is completed at the moment of contact. Then the abutment rod 54 releases the abutment block 51, and the active motor 53 drives the abutment block 51 to continue to move forward. The base 31 is also pushed to the specified position. At this time, the output shaft of the motor body 4 is just located at the center of the four groups of clamping rollers 8 on the inner side of the vertical frame 6. The electric motor 78 starts to drive the meshing teeth 77 to rotate. In the meshing effect of the single tooth and the external tooth groove 76, the meshing effect of the single tooth and the external tooth groove 76 is realized. Under the condition that the hoop 71 rotates, the rotation effect will drive the inner ring groove 723 to rotate, the inner ring groove 723 meshes with the lateral teeth 722, the rib teeth 721 are forced to drive the rib rods 724 to move, and the rib rods 724 set up the clamping roller 8 through the stand plate 73. During this process, the electric cylinder 93 starts to drive the clamping slip ring 94 to move through the telescopic slide rod 92, and the surface of the clamping slip ring 94 is movably set up with the moving wheel 91, which can effectively resist the linkage belt 75, so that the linkage belt 75 maintains the bite effect with the linkage teeth 74 on both sides of the clamping roller 8. At this point, the work of the clamping roller 8 and the output shaft of the motor body 4 is completed;

[0060] After the output shaft of the motor body 4 rotates, the clamping roller 8 is forced to rotate under the damping effect of the clamping roller 8, and the four groups of clamping rollers 8 are transmitted through the linkage teeth 74 and the linkage belt 75, ensuring that the four groups of clamping rollers 8 can maintain a good transmission effect with the motor body 4 to prevent slippage, thereby effectively collecting the actual transmission effect of the motor body 4, and one end of the clamping roller 8 is fixedly connected to the bite tooth 12. During the contact between the clamping roller 8 and the motor body 4, the bite tooth 12 will mesh with the main heart tooth 11. After the meshing is completed, the main heart tooth 11 is driven to rotate by the bite tooth 12 to transmit the transmission effect to the torque meter 10, thereby completing the detection work.

[0061] As mentioned above, it is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered by the protection scope of the present invention.

Claims

1. Permanent magnet synchronous motor impact resistance detection device, comprising a test machine platform (1) and a motor main body (4), the motor main body (4) is horizontally slid above the test machine platform (1) through a placement assembly (3), and is characterized in that, An adjusting mechanism (5) is arranged in front of the test platform (1) near the sliding position of the placement component (3), and the adjusting mechanism (5) can control the actual sliding distance of the placement component (3). A clamping mechanism (7) is arranged on one side of the test platform (1) near the axis center position of the motor body (4), and the clamping mechanism (7) is mounted on the inner side of the vertical frame (6). The vertical frame (6) is arranged at one end of the test platform (1) through a vibration isolation baffle (2). Four groups of clamping rollers (8) are arranged on the inner side of the clamping mechanism (7) near the axis center position of the vertical frame (6), and the four groups of clamping rollers (8) are distributed in a ring array. Four groups of regulating mechanisms (9) are arranged on the inner side of the vertical frame (6) near the clamping rollers (8); The clamping mechanism (7) comprises a hoop (71), a transmission assembly (72) and a stand plate (73); the hoop (71) is rotatably mounted on the inner side of the stand frame (6) through the transmission assembly (72); both ends of the clamping rollers (8) are rotatably mounted on the stand plate (73) through bearing shafts; the hoop (71) rotates through the transmission assembly (72) to drive the stand plate (73) and the four groups of clamping rollers (8) to move with the center of the hoop (71) as a vector to clamp the output shaft of the motor body (4).

2. The permanent magnet synchronous motor impact resistance detection device according to claim 1, characterized in that, The shaft at one end of the clamping roller (8) is fixedly connected to the engaging teeth (12), the engaging teeth (12) and the main heart teeth (11) are meshed with each other, and the main heart teeth (11) are transmission-connected to the input end of the torque meter (10).

3. The permanent magnet synchronous motor impact resistance detection device and method according to claim 1, characterized in that The transmission assembly (72) further comprises rib teeth (721), two groups of lateral teeth (722) and rib rods (724); the two groups of lateral teeth (722) are respectively fixed at two ends of the rib teeth (721); and the lateral teeth (722) are limitedly rotated in the vertical frame (6) by side ear seats.

4. The permanent magnet synchronous motor impact resistance detection device according to claim 3, characterized in that, The lateral teeth (722) are meshed with the inner ring groove (723), the inner ring groove (723) is arranged at the inner ring position of the hoop (71), one side of the rib teeth (721) is meshed with a rib rod (724), the other side of the rib rod (724) is slidably connected to the vertical frame (6) through a limit sliding rod, the top of the rib rod (724) is fixedly connected to the bottom of the vertical frame plate (73), the two ends of the clamping roller (8) are fixedly connected to the linkage teeth (74), the linkage teeth (74) are engaged at the inner side of the linkage belt (75), and the four groups of clamping rollers (8) are transmission-connected to each other through the linkage teeth (74).

5. The permanent magnet synchronous motor impact resistance detection device and method according to claim 1, characterized in that An external tooth groove (76) is also provided on the outer side of the hoop (71), and the external tooth groove (76) is meshed with a meshing tooth (77) through a single tooth, and the meshing tooth (77) is fixed on the output shaft of the electric motor (78), and the electric motor (78) is fixedly connected to the vertical frame (6).

6. The permanent magnet synchronous motor impact resistance detection device according to claim 1, characterized in that, The regulating mechanism (9) comprises a moving wheel (91) and a clamping slip ring (94). The moving wheel (91) is rotatably mounted on the clamping slip ring (94). The other end of the clamping slip ring (94) is fixedly connected to a telescopic slide rod (92). One side of the telescopic slide rod (92) is fixedly connected to an output rod of an electric cylinder component (93). The electric cylinder component (93) is fixed to the surface of the vertical frame (6).

7. The anti-shock detection device for a permanent magnet synchronous motor according to claim 6, characterized in that, The abutting wheel (91) is located between the two groups of electric cylinder parts (93), and the abutting wheel (91) abuts against the outer end surface of the linkage belt (75).

8. The impact resistance detection device for the permanent magnet synchronous motor according to claim 1, wherein The placement assembly (3) comprises a base platform (31) and two groups of buckling feet (33), the two groups of buckling feet (33) being arranged on the top of the base platform (31) via screws, the base platform (31) and the buckling feet (33) clamping the bottom of the motor body (4), the bottom of the base platform (31) being slidably arranged on a slide rail at the top of the test machine (1) via four groups of slide blocks (32), one side of the base platform (31) being fixedly connected to a first buckle (34), and the other side of the base platform (31) being away from the first buckle (34) being movably arranged with a second buckle (35) via an adjusting screw (36).

9. The impact resistance detection device for a permanent magnet synchronous motor according to claim 1, characterized in that The adjustment mechanism (5) comprises a resistance block (51), an active motor (53) and a resistance rod (54); a sea snake adjustment slot (57) is arranged near the resistance block (51) of the test platform (1); the resistance block (51) slides transversely in the adjustment slot (57); the bottom of the resistance block (51) is fixedly connected to a transmission base (52); the transmission base (52) is transmission-connected to a threaded rod at the output end of the active motor (53); connecting plates (55) are also arranged on both sides of the test platform (1); one side of the connecting plate (55) is fixedly connected to a plurality of groups of resistance rods (54); the resistance rods (54) slide through the test platform (1) and the adjustment slot (57); the other side of the connecting plate (55) is fixedly connected to an output rod of an actuating electric cylinder (56); and the actuating electric cylinder (56) and the test platform (1) are fixedly connected.

10. The method for using the impact resistance detection device of a permanent magnet synchronous motor according to any one of claims 1-9, characterized in that, The steps include: S1, placing the motor body (4) on the top of the base (31) and the buckling foot (33), adjusting the screw at the bottom of the buckling foot (33) to make it cooperate with the base (31) to clamp the support foot at the bottom of the motor body (4), during which the first buckle (34) covers the rear end of the motor body (4), and the adjusting screw (36) is rotated to control the second buckle (35) to clamp the front end of the motor body (4); S2, the active motor (53) is started to drive the transmission base (52) and the resistance block (51) to move laterally inside the adjustment slide groove (57), thereby changing the actual position of the resistance block (51), and then the electric cylinder (56) is started to drive a plurality of resistance rods (54) to move through the connecting plate (55), so that the resistance rods (54) are in contact with the neck position of the transmission base (52), thereby fixing the resistance block (51), and using the propulsion device to provide a constant thrust to the placement component (3), so that the base platform (31) is in contact with the resistance block (51), thereby completing the collision operation; S3, the execution electric cylinder (56) releases the clamping of the resistance rod (54) on the resistance block (51), and the resistance block (51) is driven by the active motor (53) to continue to move forward, and at this time, the placement component (3) and the motor body (4) are pushed, so that the output shaft of the motor body (4) is located between the four groups of clamping rollers (8), and then the electric motor (78) is started to drive the hoop (71) to rotate inside the vertical frame (6) through the transmission meshing effect of the meshing teeth (77) and the external tooth groove (76). The inner ring groove ( 723) drives the lateral teeth (722) to rotate, and the lateral teeth (722) are fixed to the rib teeth (721), so that the rib teeth (721) bite the rib rod (724), and the rib rod (724) is displaced by force, and the rib rod (724) pushes the stand plate (73) and the clamping roller (8) to align with and contact the output shaft of the motor body (4), and then the electric cylinder (93) starts to drive the abutting wheel (91) to contact the linkage belt (75) through the telescopic slide rod (92) and the clamping slip ring (94), completing the preparation work before the detection; S4, the output shaft of the motor body (4) rotates to drive the clamping roller (8) to rotate. Linkage teeth (74) are provided at both ends of the four groups of clamping rollers (8). The linkage teeth (74) mesh with each other through a linkage belt (75) and are tensioned under the action of the driving wheel (91). At this time, the four groups of clamping rollers (8) rotate synchronously. The other end of the clamping roller (8) is directly connected to the bite teeth (12). The bite teeth (12) mesh with the main heart teeth (11) at this time. The main heart teeth (11) rotate under force and transmit the actual torque to the torque meter (10) for detection.

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