Intelligent closed-loop control motor rotor dynamic balance detection device

Abstract

The invention discloses an intelligent closed-loop control motor rotor dynamic balance detection device which comprises a test cabinet, a test machine, a first conveying mechanism, a second conveying mechanism and a transmission mechanism are fixedly installed in the test cabinet, the first conveying mechanism comprises a pair of second supports, the pair of second supports are fixedly connected to the test machine, and the transmission mechanism is fixedly connected to the test machine. A plurality of first electric rollers are rotationally connected to the second support, a second conveying belt is installed on the first electric rollers, a guide plate is fixedly connected to the second support, and the upper end face of the guide plate is higher than the upper end face of the second conveying belt. Compared with the prior art, the intelligent closed-loop control dynamic balance detection device for the motor rotor can greatly improve the dynamic balance detection efficiency of the rotor, reduce the labor intensity of workers, and facilitate large-scale dynamic balance detection of the motor rotor; and a prominent contribution is made to automatic and standardized detection of dynamic balance detection of the motor rotor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dynamic balance testing equipment, in particular to a motor rotor dynamic balance detection device with intelligent closed-loop control. BACKGROUND

[0002] In the motor industry, the problem of unbalanced motor rotor is a long-standing difficulty. An unbalanced rotor can cause severe vibration and noise during the operation of the equipment, which not only affects the working environment and the health of personnel, but also can accelerate the wear and tear of the equipment, and even cause serious safety accidents. Therefore, the motor rotor usually needs to be tested for dynamic balance before leaving the factory to ensure that it can run safely and stably.

[0003] However, the current testing method still has some deficiencies, such as low efficiency, long time consumption, and high labor intensity for workers, which is difficult to meet the demand of large-scale detection. Specifically, the traditional testing method requires workers to manually place the motor rotor on the testing machine and fix the rotor by tightening the belt, and then start the testing machine for detection. Although this method can meet the requirements of balance detection, it is complicated to operate, resulting in low testing efficiency and long time consumption. In addition, the operation is heavy for workers, increasing the labor intensity, which is not conducive to large-scale dynamic balance detection, especially challenging the automation and standardization of production lines.

[0004] Therefore, in view of the above technical problems, it is necessary to provide a motor rotor dynamic balance detection device with intelligent closed-loop control. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the present application is to provide a motor rotor dynamic balance detection device with intelligent closed-loop control to solve the problems raised in the background art.

[0006] In order to achieve the above object, a specific embodiment of the present application provides a motor rotor dynamic balance detection device of intelligent closed-loop control, which comprises a test cabinet, a testing machine, a first conveying mechanism, a second conveying mechanism and a transmission mechanism are fixedly installed in the test cabinet, the first conveying mechanism comprises a pair of second supports, the pair of second supports are fixedly connected to the testing machine, a plurality of first electric rollers are rotatably connected to the second supports, a second conveying belt is installed on the plurality of first electric rollers, a guide plate is fixedly connected to the second supports, and the upper end surface of the guide plate is higher than the upper end surface of the second conveying belt; the second conveying mechanism is provided with a first conveying belt matched with the first conveying mechanism, a plurality of fixing blocks are fixedly connected to the first conveying belt, a placing groove matched with the motor rotor is formed in the fixing block, and a lifting assembly matched with the motor rotor is slidably connected to the fixing block; the transmission mechanism comprises a third support and a first air cylinder, the first air cylinder is fixed to the third support, one end of the first air cylinder away from the third support is fixedly connected to the upper panel of the test cabinet, a plurality of second electric rollers are rotatably connected to the third support, and a second transmission belt is installed on the plurality of second electric rollers.

[0007] In one or more embodiments of the present application, the second conveying mechanism comprises at least two first supports and a double-shaft motor, a driving wheel matched with the first conveying belt is rotatably connected to the first support; a pair of second pulleys are fixedly connected to the double-shaft motor, a first pulley matched with the second pulley is fixedly connected to the driving wheel, and a first transmission belt is installed on the second pulley and the first pulley.

[0008] In one or more embodiments of the present application, the lifting assembly comprises a jacking plate, a pair of bases and a first sliding block are fixedly connected to the jacking plate, a bearing is rotatably connected to the base, a sliding groove matched with the first sliding block is formed in the fixing block, the first sliding block is slidably connected in the sliding groove, and a second inclined surface matched with the guide plate is formed in one end of the jacking plate away from the first sliding block.

[0009] In one or more embodiments of the present application, a plurality of fixing boxes matched with the jacking plate are fixedly connected to the second conveying belt, and a magnetic plate is embedded in the box bottom wall of the fixing box.

[0010] In one or more embodiments of the present application, a first sliding rail is fixedly connected to the second support, a plurality of first electric sliding blocks are slidably connected to the first sliding rail, a limiting column is fixedly connected to the first electric sliding block, and a bayonet matched with the limiting column is formed in the jacking plate.

[0011] In one or more embodiments of the present application, the fixed block is provided with an expansion groove matched with the sliding groove, and a first inclined surface is formed on the groove wall of the expansion groove.

[0012] In one or more embodiments of the present application, the length of the second transmission belt is less than the distance between the two fixed blocks.

[0013] In one or more embodiments of the present application, the test cabinet is provided with a counterweight mechanism, the counterweight mechanism comprises a fixed box, a partition plate, a third cylinder and a second sliding rail, the fixed box is fixedly connected with a third electric sliding block, the test cabinet is fixedly connected with a third sliding rail matched with the third electric sliding block, the fixed box is slidably connected in the test cabinet through the third electric sliding block, a second cylinder is fixedly installed in the fixed box, the second cylinder is a multi-stage cylinder, a conveying pipe is fixedly connected to a first piston rod of the second cylinder, a pressing block matched with the inner diameter of the conveying pipe is fixedly connected to a second piston rod of the second cylinder; the partition plate is fixedly connected to the opposite inner walls of the fixed box, a mud storage tank is arranged on the upper panel of the partition plate, the mud storage tank stores cement, a second material leakage hole is formed in the mud storage tank, a first material leakage hole matched with the second material leakage hole is formed in the partition plate, and a connecting pipe matched with the first material leakage hole is fixedly connected to the conveying pipe; a push plate matched with the inner diameter of the mud storage tank is fixedly connected to the piston rod of the third cylinder; the second sliding rail is fixedly connected to the lower panel of the partition plate, a second electric sliding block is slidably connected to the second sliding rail, a cutting piece is fixedly connected to the second electric sliding block, and a stop block matched with the cutting piece is fixedly connected to the lower panel of the partition plate.

[0014] In one or more embodiments of the present application, the inner walls of the pressing block, the conveying pipe and the connecting pipe are all provided with a lubricating layer.

[0015] In one or more embodiments of the present application, the test cabinet is provided with a control unit for controlling the first conveying mechanism, the second conveying mechanism, the transmission mechanism and the counterweight mechanism, and the control unit is in electrical communication with the testing machine.

[0016] Compared with the prior art, the intelligent closed-loop control motor rotor dynamic balance detection device can greatly improve the efficiency of rotor dynamic balance detection, reduce the labor intensity of workers, and is conducive to large-scale dynamic balance detection of motor rotors, and makes outstanding contributions to automation and standardized detection of motor rotor dynamic balance detection. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only need to be some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0018] Figure 1 A structure schematic diagram of a motor rotor dynamic balance detection device of an embodiment of the present application under intelligent closed-loop control; Figure 2 A partial sectional view of the motor rotor dynamic balance detection device of the embodiment of the present application under intelligent closed-loop control Figure 1 ; Figure 3 A structure schematic diagram of A in the embodiment of the present application; Figure 2 Figure 4 A partial sectional view of the motor rotor dynamic balance detection device of the embodiment of the present application under intelligent closed-loop control Figure 2 ; Figure 5 A structure schematic diagram of B in the embodiment of the present application; Figure 4 Figure 6 A structure schematic diagram of a first conveying mechanism of the motor rotor dynamic balance detection device of the embodiment of the present application under intelligent closed-loop control; Figure 7 A structure schematic diagram of a lifting assembly of the motor rotor dynamic balance detection device of the embodiment of the present application under intelligent closed-loop control; Figure 8 A structure schematic diagram of C in the embodiment of the present application; Figure 7 Figure 9 A sectional view of a fixed block of the motor rotor dynamic balance detection device of the embodiment of the present application under intelligent closed-loop control; Figure 10 A test state schematic diagram of the motor rotor dynamic balance detection device of the embodiment of the present application under intelligent closed-loop control; Figure 11 A structure schematic diagram of D in the embodiment of the present application; Figure 10 A partial sectional view of a test cabinet of the motor rotor dynamic balance detection device of the embodiment of the present application under intelligent closed-loop control; Figure 12 A sectional view of a fixed box of the motor rotor dynamic balance detection device of the embodiment of the present application under intelligent closed-loop control; Figure 13 A structure schematic diagram of E in the embodiment of the present application; Figure 14 Figure 13 ​​​​Structure schematic diagram at middle E; Figure 15 For Figure 14 Structure schematic diagram at middle F.

[0019] Reference numerals: 1, test cabinet; 2, control unit; 3, test machine; 4, first support; 5, drive wheel; 501, first pulley; 6, first conveying belt; 7, double-shaft motor; 701, second pulley; 8, first transmission belt; 9, fixed block; 901, placing groove; 902, sliding groove; 903, expansion groove; 904, first inclined surface; 10, jacking plate; 1001, second inclined surface; 1002, bayonet; 11, base; 12, bearing; 13, first sliding block; 1301, third inclined surface; 14, second support; 15, first electric roller; 16, second conveying belt; 17, guide plate; 18, fixed box; 19, first sliding rail; 20, first electric sliding block; 21, limiting column; 22, connecting column; 23, sensor; 24, third support; 25, first air cylinder; 26, second electric roller; 27, second transmission belt; 28, fixed box; 2801, opening; 281, partition plate; 2811, first material leakage hole; 29, second air cylinder; 291, pressing block; 30, conveying pipe; 31, third air cylinder; 3101, push plate; 32, mud storage tank; 321, second material leakage hole; 33, cement; 34, connecting pipe; 35, second sliding rail; 36, second electric sliding block; 37, cutting piece; 38, stop block; 39, third sliding rail; 40, third electric sliding block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application. EMBODIMENT

[0021] As Figure 1 and Figure 2 shown, the intelligent closed-loop control motor rotor dynamic balance detection device in an embodiment of the present application includes a test cabinet 1, a test machine 3 is fixedly installed in the test cabinet 1, and the test machine 3 includes a pair of suspension supports and a matching measurement system. The basic test principle is that a reflective sticker is pasted on the motor rotor, the motor rotor is placed on the test machine 3 and is driven to rotate, the unbalanced mass of the motor rotor when rotating generates centrifugal force which is captured by the measurement system, and then the test machine 3 measures the mass and the counterweight angle of the motor rotor that needs to be counterweighted. This is a mature technology at present, and will not be described in detail here.

[0022] To address the core pain points of traditional testing methods—low efficiency, high labor intensity, and difficulty in adapting to large-scale testing—the intelligent closed-loop control motor rotor dynamic balancing testing device also includes a first conveying mechanism, a second conveying mechanism, a transmission mechanism, and a control unit 2. The control unit 2 is electrically connected to the first conveying mechanism, the second conveying mechanism, the transmission mechanism, and the testing machine 3. Through the coordinated operation of these four components, continuous automated testing of motor rotor dynamic balancing is achieved, significantly improving testing efficiency and standardization. Specifically, the first conveying mechanism is fixedly connected to the testing machine 3, responsible for receiving and transporting the motor rotor to the testing area. The second conveying mechanism is responsible for loading and transferring the motor rotor, transporting it to the first conveying mechanism. The transmission mechanism drives the rotation of the motor rotor on the first conveying mechanism, providing stable dynamic testing conditions for the testing machine 3.

[0023] like Figures 1 to 7 As shown, the second conveying mechanism comprises a dual-axis motor 7 and two symmetrically arranged first supports 4. Each first support 4 is equipped with a pair of columns, on which multiple drive wheels 5 are rotatably connected. A first conveyor belt 6 is sleeved on the drive wheels 5 rotating on both first supports 4. To achieve power transmission, a first pulley 501 is welded to the shaft of the drive wheel 5. A second pulley 701 matching the first pulley 501 is welded to the two output shafts of the dual-axis motor 7. A first transmission belt 8 is sleeved on the first pulley 501 and the second pulley 701. Starting the dual-axis motor 7 drives the drive wheels 5 to rotate, thereby driving the first conveyor belt 6 to run smoothly. Multiple fixing blocks 9 are fixedly connected to the first conveyor belt 6 by bolts or other conventional connection methods. The fixing blocks 9 have placement slots 901 that match the motor rotor. During testing, the motor rotor is placed in the placement slots 901 on a pair of fixing blocks 9. Through the synchronous movement of the pair of first conveyor belts 6, the motor rotor can be smoothly conveyed into the test cabinet 1.

[0024] The first conveying mechanism includes a pair of second supports 14, which are welded to a pair of suspension supports of the testing machine 3. Multiple first electric rollers 15 are rotatably connected to the second supports 14, and second conveyor belts 16 are fitted onto the first electric rollers 15. Driven by the first electric rollers 15, the second conveyor belts 16 can achieve precise conveying. To achieve unmanned transfer of the motor rotor from the second conveying mechanism to the first conveying mechanism, a lifting component matching the motor rotor is slidably connected to the fixed block 9. When the motor rotor is transported to the designated position inside the testing cabinet 1, the lifting component automatically lifts the motor rotor and transfers it onto the second conveyor belt 16. Subsequently, the motor rotor is driven to rotate by the transmission mechanism, and the testing machine 3 can complete the dynamic balance measurement of the motor rotor.

[0025] Specifically, such as Figures 2 to 11As shown, the lifting assembly includes a lifting plate 10, on which a pair of bases 11 and a pair of first sliders 13 are welded. Bearings 12 are rotatably connected to the bases 11 to ensure smooth rotation of the motor rotor during testing. A groove 902 matching the first sliders 13 is provided on the fixing block 9, and the first sliders 13 are slidably connected within the groove 902. A second inclined surface 1001 is provided at the end of the lifting plate 10 away from the first sliders 13. A guide plate 17 matching the second inclined surface 1001 is welded to the second bracket 14, and the upper surface of the guide plate 17 is higher than the upper surface of the second conveyor belt 16. The first conveyor belt 6 drives the fixed block 9 and the lifting plate 10 to move from left to right. When the lifting plate 10 and the guide plate 17 come into contact, the second inclined surface 1001 on the lifting plate 10 and the guide plate 17 engage in a wedge-shaped fit, allowing the lifting plate 10 to slide upward on the fixed block 9. After the lifting plate 10 and the guide plate 17 separate, the lifting plate 10 will fall onto the second conveyor belt 16. At this time, the first slider 13 on the lifting plate 10 is located in the middle of the trough 902 and does not contact the upper or lower walls of the trough 902. At the same time, the bearings 12 on the two lifting plates 10 will lift the motor rotor in the placement slot 901, causing the motor rotor to disengage from the slot wall of the placement slot 901, preventing the imbalance of the motor rotor during rotation from being blocked by the fixed block 9. While the first conveyor belt 6 is moving, the first electric roller 15 will also drive the second conveyor belt 16 and the lifting plate 10 to perform the same movement, causing the lifting plate 10 and the fixed block 9 to move from left to right within the test cabinet 1.

[0026] The transmission mechanism includes a third support 24 and a first cylinder 25. The first cylinder 25 is welded to the third support 24, and the end of the first cylinder 25 away from the third support 24 is welded to the top plate of the test cabinet 1. Multiple second electric rollers 26 are rotatably connected to the third support 24, and second transmission belts 27 are mounted on the multiple second electric rollers 26. The vertically downward area of ​​the second transmission belts 27 is designated as the test area. After the motor rotor enters the test area, the piston rod of the first cylinder 25 extends synchronously, driving the third support 24 to move downwards as a whole. The second transmission belts 27 press tightly against the motor rotor, and then the second electric rollers 26 rotate at high speed. The friction between the second electric rollers 26 and the motor rotor drives the motor rotor to rotate rapidly. The unbalanced force generated by the rotation of the motor rotor is transmitted sequentially through the second conveyor belt 16 and the second support 14 to the suspension bracket of the test machine 3. Finally, the measurement system of the test machine 3 accurately detects the dynamic balance parameters. When the lifting plate 10 leaves the testing area and separates from the second conveyor belt 16, the first slider 13 slides downward in the slide groove 902, and the motor rotor falls back into the placement groove 901. Finally, it is transported to the outside of the test cabinet 1 by the first conveyor belt 6. The whole process does not require manual intervention and realizes full automation of rotor transportation, positioning, driving and testing.

[0027] It should be noted that the lengths of the second transmission belt 27 and the second support 14 are less than the distance between the two fixed blocks 9. In other words, during the dynamic balancing test of the motor rotor, no other motor rotors are transported onto the second conveyor belt 16.

[0028] It is worth noting that during testing, the friction between the second transmission belt 27 and the motor rotor increases the friction between the first slider 13 and the side wall of the chute 902, which affects the testing accuracy. Furthermore, multiple fixed boxes 18 matching the lifting plate 10 are bonded to the second conveyor belt 16. Magnetic plates are embedded in the bottom wall of each fixed box 18, and the distance between two fixed boxes 18 is equal to the distance between two fixed blocks 9. When the lifting plate 10 separates from the guide plate 17, the lifting plate 10 slides downwards on the fixed blocks 9 and falls into the fixed box 18, where it is attracted by the magnetic plates on the bottom wall. The attraction of the magnetic plates keeps the lifting plate 10 vertical. When the second transmission belt 27 drives the motor rotor to rotate, it reduces the friction between the first slider 13 and the side wall of the chute 902, thus reducing testing errors.

[0029] It should be noted that after the motor rotor test is completed, as the fixed box 18 moves along the movement trajectory of the second conveyor belt 16, the magnetic force of the magnetic plate on the bottom wall of the fixed box 18 will not affect the separation of the fixed box 18 and the lifting plate 10.

[0030] Furthermore, the fixed block 9 has an expansion groove 903 that matches the slide groove 902, and the expansion groove 903 is located in the middle of the slide groove 902. A first inclined surface 904 is formed on the wall of the expansion groove 903, and a third inclined surface 1301 that matches the first inclined surface 904 is formed on the first slider 13. Specifically, the cross-section of the expansion groove 903 is larger than that of the slide groove 902. When the lifting plate 10 and the guide plate 17 are in contact, the first slider 13 slides upward within the slide groove 902 and into the expansion groove 903, and then continues to slide upward to re-enter the slide groove 902. When the lifting plate 10 falls into the fixed box 18, the first slider 13 falls back into the expansion groove 903. At this time, the first slider 13 does not contact any wall of the expansion groove 903, thereby avoiding friction between the first slider 13 and the slide groove 902 or the expansion groove 903 during the detection process, further reducing measurement errors and greatly improving detection accuracy. After the test is completed, the first inclined surface 904 and the third inclined surface 1301 cooperate to make the first slider 13 fall back into the slide groove 902.

[0031] It is worth noting that, since the first slider 13 does not contact the wall of the expansion groove 903, a first slide rail 19 is welded to the second bracket 14 to prevent the lifting plate 10 from tilting. Multiple first electric sliders 20 are slidably connected to the first slide rail 19. Limiting posts 21 are welded to the first electric sliders 20; the limiting posts 21 are L-shaped with a rectangular cross-section. The lifting plate 10 has a locking slot 1002 that matches the limiting posts 21. Specifically, when the lifting plate 10 is placed inside the fixing box 18, the first electric sliders 20 move on the second bracket 14, causing a pair of limiting posts 21 to engage in the locking slot 1002. Then, the first electric sliders 20 move synchronously with the lifting plate 10. When the second transmission belt 27 drives the motor rotor to rotate, the limiting posts 21 prevent the lifting plate 10 from tilting. Meanwhile, because the limiting post 21 is engaged in the bayonet 1002, it reduces the force absorbed by the second conveyor belt 16 and transmits the unbalanced force generated when the motor rotor rotates to the testing machine 3, thus providing reliable assurance for the testing accuracy. After the motor rotor completes the dynamic balance test, the first electric slider 20 accelerates, causing the limiting post 21 to disengage from the bayonet 1002, avoiding affecting the movement of the lifting plate 10 within the testing cabinet 1.

[0032] Preferably, there are multiple first electric sliders 20. When each motor rotor to be tested enters the test cabinet 1, there will be a pair of limit posts 21 in front of the motor rotor waiting to be inserted into the slot 1002.

[0033] The technical solutions described in the above embodiments of this application have at least the following technical effects or advantages: Compared with the prior art, in this embodiment, no manual intervention is required during the dynamic balancing test of the motor rotor, realizing the full automation of rotor transportation, positioning, driving, and testing, which greatly improves the efficiency of rotor testing, reduces the labor intensity of workers, facilitates large-scale dynamic balancing testing of motor rotors, and makes outstanding contributions to the automation and standardization of dynamic balancing testing of motor rotors. Example

[0034] To further improve the efficiency of dynamic balancing of the motor rotor, such as Figures 10 to 15As shown, the test cabinet 1 is equipped with a counterweight mechanism, which includes a fixed box 28. A partition plate 281, a second cylinder 29, a third cylinder 31, and a mud storage tank 32 are fixedly connected inside the fixed box 28. Specifically, the second cylinder 29 is a two-stage cylinder. A conveying pipe 30 is welded to the first-stage piston rod of the second cylinder 29, and a pressure block 291 matching the inner diameter of the conveying pipe 30 is welded to the second-stage piston rod of the second cylinder 29. The mud storage tank 32 is fixedly installed on the top plate of the partition plate 281. The mud storage tank 32 stores clay 33 and has a second discharge port 321. The partition plate 281 has a first discharge port 2811 matching the second discharge port 321. A connecting pipe 34 matching the first discharge port 2811 is integrally formed on the conveying pipe 30. The fixed box 28 has an opening 2801. The size of the opening 2801 is larger than the overall size of the conveying pipe 30 and the connecting pipe 34. A push plate 3101 that matches the inner diameter of the mud storage tank 32 is fixedly connected to the piston rod of the third cylinder 31.

[0035] When the testing machine 3 measures the weight required for counterweighting the motor rotor, the first and second conveying mechanisms move synchronously, driving the motor rotor to the position corresponding to the opening 2801. During this process, the piston rod of the third cylinder 31 extends, squeezing the clay 33 in the clay storage tank 32, causing it to fall into the conveying pipe 30. Then, after the extension of the first-stage piston rod of the second cylinder 29, one end of the conveying pipe 30 extends onto the motor rotor. Finally, the second-stage piston rod of the second cylinder 29 extends, pressing the clay 33 in the conveying pipe 30 onto the motor rotor, completing the counterweighting of the motor rotor. After the motor rotor has been counterweighted, the first and second-stage piston rods of the second cylinder 29 retract, causing the conveying pipe 30 to retract into the fixed box 28. The second transmission belt 27 then drives the motor rotor to rotate again, checking the dynamic balance of the counterweighted motor rotor.

[0036] It should be noted that, in order to ensure the weight of the clay 33 entering the conveying pipe 30, the dimensions of the clay storage tank 32 and the extension length of the piston rod of the third cylinder 31 need to be measured. For example, for every 5mm extension of the piston rod of the third cylinder 31, the mass of the extruded clay 33 is 1g. By controlling the extension of the piston rod of the third cylinder 31, the corresponding mass of clay 33 can be extruded. In addition, to improve accuracy, the third cylinder 31 can be a hydraulic cylinder or a lead screw pushing mechanism.

[0037] Furthermore, a second slide rail 35 and a stop block 38 are welded to the lower plate of the partition plate 281. A second electric slider 36 is slidably connected to the second slide rail 35. A cutting blade 37 is welded to the second electric slider 36. After the clay 33 in the clay storage tank 32 is squeezed out, the second electric slider 36 slides on the second slide rail 35. The cutting blade 37 and the stop block 38 on the second electric slider 36 cooperate to cut off the squeezed clay 33.

[0038] Furthermore, the pressure block 291, the conveying pipe 30, the connecting pipe 34, and the stop block 38 are all provided with a polytetrafluoroethylene lubricating layer to prevent them from sticking to the putty 33 and to ensure the accuracy of the counterweight.

[0039] It is worth noting that when balancing the motor rotor, in addition to determining the mass of the counterweight, the position of the counterweight also needs to be determined. For example... Figure 1 , Figure 6 , Figure 10 and Figure 13 As shown, a pair of limiting posts 21 are welded with connecting posts 22, and a sensor 23 is installed on the connecting posts 22. The sensor 23 determines the position of the motor rotor that needs to be counterweighted by the reflective sticker on the motor rotor and sends this information to the control unit 2. The control unit 2 controls the second transmission belt 27 to drive the motor to rotate, so that the angle of the motor rotor that needs to be counterweighted corresponds to the conveying pipe 30, ensuring the accuracy of the counterweight position.

[0040] In addition, when the putty 33 is adhered to the motor rotor, the second transmission belt 27 pressing on the motor rotor can also prevent the motor rotor from rotating, thus ensuring the fixation of the adhesive 33 in the adhesion position.

[0041] The technical solutions in the above embodiments of this application have at least the following technical effects or advantages: Compared with the prior art, in this embodiment, the motor rotor can be counterweighted by the counterweight mechanism, and the motor rotor can continue to be dynamically detected after counterweighting, which greatly improves the detection efficiency of the dynamic balance of the motor rotor. Example

[0042] Considering that it is impossible to simultaneously transport the motor rotor and perform counterweighting during the counterweighting process, which would affect the detection efficiency, this application proposes the following technical solution to address the aforementioned technical problem: like Figures 10 to 13As shown, a third electric slider 40 is welded to the fixed box 28, and a third slide rail 39 matching the third electric slider 40 is welded to the test cabinet 1. The fixed box 28 is slidably connected to the test cabinet 1 via the third electric slider 40. Specifically, when the dynamic balance of the motor rotor is detected by the testing machine 3, the first conveying mechanism continues to drive the motor rotor to move. At this time, the motor rotor is located at the position of the front one-third of the second transmission belt 27. At the same time, the third electric slider 40 slides on the third slide rail 39, driving the fixed box 28 to move synchronously with the motor rotor, and the second transmission belt 27 drives the motor rotor to rotate, so that the position of its counterweight corresponds to the opening 2801. When the position of the motor rotor that needs to be counterweighted corresponds to the opening 2801, the second transmission belt 27 moves synchronously with the first conveying mechanism, achieving relative stillness of the motor rotor and preventing the friction between the second transmission belt 27 and the motor from causing the motor rotor to rotate. In this process, the counterweight of the motor rotor can be completed. After the motor rotor is counterweighted, the second electric roller 26 drives the second transmission belt 27 to move rapidly, thereby detecting the counterweighted motor rotor and improving the detection efficiency of the motor rotor's dynamic balance.

[0043] Obviously, the above-described embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

Claims

1. A dynamic balance testing device for a motor rotor with intelligent closed-loop control, comprising a test cabinet (1), wherein a test machine (3) is fixedly installed inside the test cabinet (1), characterized in that, Also includes: The first conveying mechanism includes a pair of second supports (14), which are fixedly connected to the testing machine (3). Multiple first electric rollers (15) are rotatably connected to the second supports (14), and a second conveyor belt (16) is installed on the multiple first electric rollers (15). A guide plate (17) is fixedly connected to the second supports (14), and the upper end face of the guide plate (17) is higher than the upper end face of the second conveyor belt (16). The second conveying mechanism is provided with a first conveyor belt (6) that matches the first conveying mechanism. Multiple fixed blocks (9) are fixedly connected to the first conveyor belt (6). The fixed blocks (9) are provided with placement grooves (901) that match the motor rotor. The fixed blocks (9) are slidably connected with lifting components that match the motor rotor. The transmission mechanism includes a third bracket (24) and a first cylinder (25). The first cylinder (25) is fixed on the third bracket (24). The end of the first cylinder (25) away from the third bracket (24) is fixedly connected to the top plate of the test cabinet (1). A plurality of second electric rollers (26) are rotatably connected on the third bracket (24). A second transmission belt (27) is installed on the plurality of second electric rollers (26).

2. The intelligent closed-loop control motor rotor dynamic balance detection device according to claim 1, characterized in that, The second conveying mechanism includes: At least two first supports (4), each first support (4) is rotatably connected to a drive wheel (5) that matches the first conveyor belt (6); A dual-axis motor (7) is fixedly connected to a pair of second pulleys (701), and a first pulley (501) matching the second pulleys (701) is fixedly connected to the drive wheel (5). A first transmission belt (8) is installed on the second pulley (701) and the first pulley (501).

3. The intelligent closed-loop control motor rotor dynamic balance detection device according to claim 1, characterized in that, The lifting assembly includes a lifting plate (10), on which a pair of bases (11) and a first slider (13) are fixedly connected. A bearing (12) is rotatably connected to the bases (11). A groove (902) matching the first slider (13) is provided on the fixing block (9). The first slider (13) is slidably connected in the groove (902). A second inclined surface (1001) matching the guide plate (17) is provided at the end of the lifting plate (10) away from the first slider (13).

4. The intelligent closed-loop control motor rotor dynamic balance detection device according to claim 3, characterized in that, The second conveyor belt (16) is fixedly connected to a plurality of fixed boxes (18) that match the lifting plate (10), and the bottom wall of the fixed box (18) is fitted with a magnetic plate.

5. The intelligent closed-loop control motor rotor dynamic balance detection device according to claim 3, characterized in that, The second bracket (14) is fixedly connected to a first slide rail (19), and a plurality of first electric sliders (20) are slidably connected to the first slide rail (19). A limit post (21) is fixedly connected to the first electric slider (20), and a bayonet (1002) matching the limit post (21) is provided on the lifting plate (10).

6. The intelligent closed-loop control motor rotor dynamic balance detection device according to claim 3, characterized in that, The fixed block (9) has an expansion groove (903) that matches the slide groove (902). The expansion groove (903) has a first inclined surface (904) on its wall. The first slider (13) has a third inclined surface (1301) that matches the first inclined surface (904).

7. The intelligent closed-loop control motor rotor dynamic balance detection device according to claim 1, characterized in that, The length of the second transmission belt (27) is less than the distance between the two fixed blocks (9).

8. The intelligent closed-loop control motor rotor dynamic balance detection device according to claim 1, characterized in that, The test cabinet (1) is equipped with a counterweight mechanism, which includes: A fixed box (28) is fixedly connected to a third electric slider (40). A third slide rail (39) matching the third electric slider (40) is fixedly connected to the test cabinet (1). The fixed box (28) is slidably connected to the test cabinet (1) through the third electric slider (40). A second cylinder (29) is fixedly installed inside the fixed box (28). The second cylinder (29) is a multi-stage cylinder. A conveying pipe (30) is fixedly connected to the first-stage piston rod of the second cylinder (29). A pressure block (291) matching the inner diameter of the conveying pipe (30) is fixedly connected to the second-stage piston rod of the second cylinder (29). A partition plate (281) is fixedly connected to the inner wall of the fixed box (28). A mud storage tank (32) is provided on the upper plate of the partition plate (281). The mud storage tank (32) stores clay (33). A second discharge port (321) is provided on the mud storage tank (32). A first discharge port (2811) matching the second discharge port (321) is provided on the partition plate (281). A connecting pipe (34) matching the first discharge port (2811) is fixedly connected to the conveying pipe (30). The third cylinder (31) has a push plate (3101) that matches the inner diameter of the mud storage tank (32) fixedly connected to the piston rod of the third cylinder (31). The second slide rail (35) is fixedly connected to the lower plate of the partition plate (281). The second slide rail (35) is slidably connected to the second electric slider (36). The second electric slider (36) is fixedly connected to the cutting blade (37). The lower plate of the partition plate (281) is fixedly connected to the stop block (38) that matches the cutting blade (37).

9. The intelligent closed-loop control motor rotor dynamic balance detection device according to claim 8, characterized in that, The pressure block (291), the conveying pipe (30) and the connecting pipe (34) are all provided with a lubricating layer.

10. The intelligent closed-loop control motor rotor dynamic balance detection device according to claim 9, characterized in that, The test cabinet (1) is equipped with a control unit (2) for controlling the first conveying mechanism, the second conveying mechanism, the transmission mechanism and the counterweight mechanism. The control unit (2) and the test machine (3) are electrically connected.

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