A motor rotor dynamic balance correction device

Abstract

The utility model relates to rotor dynamic balance technical field discloses a motor rotor dynamic balance correction device, including the correction disc, the middle part of correction disc is fixedly installed with the shaft sleeve who penetrates, the outside of shaft sleeve is equidistant and has opened four sets of fixed holes, the inboard screw thread connection of fixed hole has the bolt, the one side of correction disc is equipped with the annular guide slot, the inboard sliding connection of guide slot has the stud screw, one end screw thread connection of stud screw who is placed in correction disc outside has the counterweight nut. The utility model discloses the combination of shaft sleeve, bolt and fixed opening, can fix two sets of correction disc respectively in the both ends of motor rotor, through the sliding connection of sliding block and sliding slot, can adjust the position of stud screw, then pushes the stud screw and rotates into the corresponding positioning hole, can fix the stud screw, through the screw connection of stud screw and counterweight nut, can accurate control the weight of counterweight block.

Description

Technical Field

[0001] This utility model relates to the field of rotor dynamic balancing technology, specifically to a motor rotor dynamic balancing correction device. Background Technology

[0002] In motor manufacturing, machinery maintenance, and numerous applications of rotating equipment, dynamic balancing of motor rotors is a crucial process. As the core component of rotating equipment, the dynamic balance of the motor rotor directly affects the equipment's operating efficiency, stability, noise level, and service life. If the rotor has a dynamic imbalance problem, it will generate periodic centrifugal forces during high-speed rotation, leading to increased equipment vibration, increased noise, and potentially even equipment damage or safety accidents.

[0003] The inventors discovered that the existing technology has at least the following unresolved problems: Firstly, it is inconvenient to precisely adjust the position of the counterweight, which may result in slight dynamic imbalance in the rotor even after dynamic balancing, affecting the operating performance of the equipment. Secondly, the weight of the counterweight is usually fixed, making it impossible to make fine adjustments based on the specific dynamic imbalance of the rotor, thus limiting the accuracy and effectiveness of dynamic balancing.

[0004] Therefore, we propose a motor rotor dynamic balancing correction device that can solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a motor rotor dynamic balancing correction device, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a motor rotor dynamic balancing correction device, including a correction disc, a bushing through and fixedly installed in the middle of the correction disc, four sets of fixing holes equally spaced on the outer side of the bushing, bolts threadedly connected to the inner side of the fixing holes, an annular guide groove on one side of the correction disc, a double-ended lead screw slidably connected to the inner side of the guide groove, a counterweight nut threadedly connected to one end of the double-ended lead screw located on the outer side of the correction disc, and an adjustment structure for adjusting the position of the counterweight nut.

[0007] As an optional solution to the technical solution of this application, the adjustment structure includes a slider, the inside of the calibration disk is provided with a sliding groove, the slider is slidably connected to the sliding groove, the inside of the slider is provided with an adjustment groove, the inside of the adjustment groove is slidably connected to an adjustment plate, the double-ended lead screw horizontally passes through the middle of the adjustment plate and is fixedly connected to the adjustment plate, the inner wall of the sliding groove away from the guide groove is provided with positioning holes at equal intervals, and the end of the double-ended lead screw away from the counterweight nut is threadedly connected to the positioning hole.

[0008] As an optional solution to the technical solution of this application, a spring is provided on the side of the adjustment plate near the positioning hole, and the spring is sleeved on the outside of the double-ended lead screw.

[0009] As an optional solution to the technical solution of this application, a knob is installed through and fixedly mounted on the side of the double-ended lead screw near the counterweight nut, and the knob is located on the outside of the calibration disc.

[0010] As an optional solution to the technical solution of this application, a connecting groove is provided through the middle of the inner wall on both sides of the adjusting groove, and the double-ended lead screw is slidably connected to the connecting groove.

[0011] As an optional solution to the technical solution of this application, the slide groove is annular and the slide groove is connected to the guide groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: by combining the bushing, bolt and fixing hole, two sets of correction discs can be fixed at both ends of the motor rotor respectively; by sliding the slider and the slide groove, the position of the double-ended lead screw can be adjusted; then, by pushing the double-ended lead screw and screwing it into the corresponding positioning hole, the double-ended lead screw can be fixed; by spirally connecting the double-ended lead screw with the counterweight nut, the weight of the counterweight can be precisely controlled. Attached Figure Description

[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a front view of a motor rotor dynamic balancing correction device according to the present invention; Figure 2 This is a cross-sectional view of the slide groove of a motor rotor dynamic balancing correction device according to this utility model; Figure 3 This is a schematic diagram showing the connection between the slider and the double-ended lead screw in a motor rotor dynamic balancing correction device according to this utility model.

[0014] In the diagram: 1. Calibration disc; 11. Guide groove; 12. Double-ended lead screw; 13. Counterweight nut; 14. Slide groove; 15. Slider; 16. Adjustment groove; 17. Connecting groove; 18. Adjustment plate; 19. Positioning hole; 2. Spring; 21. Knob; 22. Bushing; 23. Fixing hole; 24. Bolt. Detailed Implementation

[0015] Please see Figures 1-3This utility model provides a technical solution: a motor rotor dynamic balancing correction device, including a correction disc 1, an annular guide groove 11 on one side of the correction disc 1, a double-ended lead screw 12 slidably connected to the inner side of the guide groove 11, a counterweight nut 13 threadedly connected to one end of the double-ended lead screw 12 located on the outer side of the correction disc 1, and an adjustment structure for adjusting the position of the counterweight nut 13, the adjustment structure including a slider 15, a sliding groove 14 annular in shape and communicating with the guide groove 11, the sliding groove 14... Block 15 is slidably connected to slide groove 14. The slide block 15 has an adjustment groove 16 inside. An adjustment plate 18 is slidably connected inside the adjustment groove 16. The double-ended screw 12 passes horizontally through the middle of the adjustment plate 18 and is fixedly connected to the adjustment plate 18. The inner wall of the slide groove 14 away from the guide groove 11 has positioning holes 19 at equal intervals. The end of the double-ended screw 12 away from the counterweight nut 13 is threadedly connected to the positioning hole 19. The middle of the inner walls on both sides of the adjustment groove 16 has a connecting groove 17 through which the double-ended screw 12 is slidably connected to the connecting groove 17.

[0016] In this technical solution, the double-ended lead screw 12 is slidably connected to the guide groove 11, and the slider 15 is slidably connected to the slide groove 14. The distribution position of each set of double-ended lead screws 12 on the outside of the correction disk 1 can be adjusted according to different models of motor rotors. The adjustment groove 16 is slidably connected to the adjustment plate 18, which can push one end of the double-ended lead screw 12 out of the adjustment groove 16 and screw it into the corresponding positioning hole 19 on the inner wall of the slide groove 14, thereby fixing the double-ended lead screw 12. The double-ended lead screw 12 is screwed to the counterweight nut 13, which can be installed on the end of the double-ended lead screw 12 located on the outside of the correction disk 1, so as to accurately control the weight of the counterweight.

[0017] In this embodiment, a knob 21 is installed through and fixedly mounted on the side of the double-ended lead screw 12 near the counterweight nut 13. The knob 21 is located on the outside of the calibration plate 1. A spring 2 is provided on the side of the adjustment plate 18 near the positioning hole 19. The spring 2 is sleeved on the outside of the double-ended lead screw 12.

[0018] In this technical solution, when it is necessary to adjust the position of the double-ended lead screw 12, the double-ended lead screw 12 can be rotated in the opposite direction by the knob 21, so that the end of the double-ended lead screw 12 away from the counterweight nut 13 moves out of the positioning hole 19. A spring 2 is provided on the side of the adjusting plate 18 near the positioning hole 19. The elastic force of the spring 2 can push one end of the double-ended lead screw 12 to move out of the positioning hole 19. The position of the double-ended lead screw 12 can be adjusted by the slider 15.

[0019] In this embodiment, a bushing 22 is installed through and fixedly mounted in the middle of the calibration disk 1. Four sets of fixing holes 23 are equally spaced on the outer side of the bushing 22, and bolts 24 are threadedly connected to the inner side of the fixing holes 23.

[0020] In this technical solution, the two ends of the motor rotor are respectively passed through the bushings 22 in the middle of the two sets of correction discs 1, and then the four sets of bolts 24 distributed at equal intervals on the outside of the bushings 22 are tightened so that one end of the bolts 24 abuts against the outside of the motor rotor, which facilitates the fixed connection between the motor rotor and the two sets of correction discs 1.

[0021] When using a motor rotor dynamic balancing device, the two ends of the motor rotor are respectively inserted through the bushings 22 in the middle of the two sets of balancing discs 1. Then, the four sets of bolts 24 evenly distributed on the outer side of the bushings 22 are tightened, so that one end of the bolts 24 abuts against the outer side of the motor rotor, which facilitates the fixed connection between the motor rotor and the two sets of balancing discs 1. The double-ended lead screw 12 is slidably connected to the guide groove 11, and the slider 15 is slidably connected to the slide groove 14. The distribution position of each set of double-ended lead screws 12 on the outer side of the balancing disc 1 can be adjusted according to different models of motor rotors. The adjustment groove 16 is slidably connected to the adjustment plate 18, which can push one end of the double-ended lead screw 12 out of the adjustment groove 16 and screw it into the inner wall of the slide groove 14 to align with the motor rotor. The double-ended lead screw 12 is fixed in the corresponding positioning hole 19. The double-ended lead screw 12 is screwed to the counterweight nut 13, which can be installed on the end of the double-ended lead screw 12 located outside the calibration plate 1. This allows for precise control of the weight of the counterweight. When the position of the double-ended lead screw 12 needs to be adjusted, the double-ended lead screw 12 can be rotated in the opposite direction by the knob 21, so that the end of the double-ended lead screw 12 away from the counterweight nut 13 moves out of the positioning hole 19. A spring 2 is provided on the side of the adjusting plate 18 near the positioning hole 19. The elastic force of the spring 2 can push one end of the double-ended lead screw 12 out of the positioning hole 19. The position of the double-ended lead screw 12 can be adjusted by the slider 15.

Claims

1. A device for dynamic balancing correction of an electric machine rotor, comprising a correction disc (1), characterised in that, A bushing (22) is fixedly installed through the middle of the calibration disc (1). Four sets of fixing holes (23) are equally spaced on the outer side of the bushing (22). Bolts (24) are threaded to the inner side of the fixing holes (23). An annular guide groove (11) is provided on one side of the calibration disc (1). A double-ended lead screw (12) is slidably connected to the inner side of the guide groove (11). A counterweight nut (13) is threaded to one end of the double-ended lead screw (12) located on the outer side of the calibration disc (1). The calibration disc (13) also includes an adjustment structure for adjusting the position of the counterweight nut (13).

2. A dynamic balancing correction device for an electric machine rotor according to claim 1, characterized in that: The adjustment structure includes a slider (15), a groove (14) is provided inside the calibration disk (1), the slider (15) is slidably connected to the groove (14), an adjustment groove (16) is provided inside the slider (15), an adjustment plate (18) is slidably connected inside the adjustment groove (16), a double-ended lead screw (12) is horizontally passed through the middle of the adjustment plate (18) and fixedly connected to the adjustment plate (18), and positioning holes (19) are provided at equal intervals on the inner wall of the groove (14) away from the guide groove (11), and the end of the double-ended lead screw (12) away from the counterweight nut (13) is threadedly connected to the positioning hole (19).

3. A motor rotor dynamic balance correction device according to claim 2, characterized in that: A spring (2) is provided on the side of the adjusting plate (18) near the positioning hole (19), and the spring (2) is sleeved on the outside of the double-ended lead screw (12).

4. A motor rotor dynamic balancing correction device according to claim 3, characterized in that: A knob (21) is installed through and fixedly mounted on the side of the double-ended lead screw (12) near the counterweight nut (13), and the knob (21) is located on the outside of the calibration plate (1).

5. A motor rotor dynamic balancing correction device according to claim 4, characterized in that: A connecting groove (17) is provided through the middle of the inner walls on both sides of the adjusting groove (16), and the double-headed screw (12) is slidably connected to the connecting groove (17).

6. A motor rotor dynamic balance correction device according to claim 2, characterized in that: The slide groove (14) is annular and is connected to the guide groove (11).

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