Dynamic balance baffle of generator rotor
By designing a cross-shaped generator rotor dynamic balancing baffle, and utilizing dynamic balancing modules and reinforcing ribs to achieve dynamic balancing of rotor weight increase or decrease, the problem of unstable rotor dynamic balance in existing technologies has been solved, achieving reliable dynamic balance verification and cost-effectiveness.
Patent Information
- Application Number
- CN202423185008.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing aircraft generator rotors are difficult to dynamically balance effectively when they are running at high speeds, and the dynamic balancing baffles cannot be repeatedly checked, resulting in waste and instability.
Design a cross-shaped generator rotor dynamic balancing baffle, equipped with a dynamic balancing module and reinforcing ribs, which is fixed to the rotor with screws to achieve dynamic balance by increasing or decreasing weight, and can be repeatedly checked.
It achieves reliable dynamic balance for adding or removing weight on a single rotor component, reducing production costs, and allows for reuse while improving rotor end face stability.
Smart Images
Figure CN223666160U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to aeronautical generator structure design field, concretely relates to a generator rotor dynamic balance baffle. BACKGROUND
[0002] At present, aeronautical electric machine has been developed to the direction of high speed generator, and it is very important for the rotor as one of the key components of the electric machine to keep stability under high speed rotation, therefore, the high speed electric machine has high requirement on the unbalance of the rotor, the dynamic balance means commonly used in the industry at present is to install a circular baffle on the two end faces of the generator rotor, on the one hand, the dynamic balance operation of weight reduction is carried out on the baffle, on the other hand, the baffle can also fix the rotor, but this scheme can only carry out the dynamic balance of weight reduction most of the time due to the limited space, and once the dynamic balance changes after the rotor runs for a long time, the baffle or the rotor can only be replaced when the dynamic balance cannot be checked again, thereby causing waste. SUMMARY
[0003] The utility model discloses a kind of generator rotor dynamic balance baffles to solve the problems existing in prior art, the part simple structure, installation, not only can improve rotor end face stability, but also can realize generator rotor weight gain or weight reduction dynamic balance on a part, and when weight gain dynamic balance is carried out, counterweight piece can be repeatedly disassembled, and rotor dynamic balance can be repeatedly checked.
[0004] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of generator rotor dynamic balance baffle, the dynamic balance baffle is cross-shaped structure, integrally constitutes, is equipped with dynamic balance module 4 on cross-shaped structure end head, the middle position of the dynamic balance baffle is provided with circular hole 1, 4 key grooves 2 are uniformly distributed on the circumferential surface in the circular hole 1, and 4 screw holes 3 are uniformly distributed around the circular hole 1.
[0005] The key groove 2 is semicircular key groove.
[0006] The diameter of the circular hole 1 needs to be interference fit with the diameter of the hollow shaft of the motor main rotor.
[0007] 11 dynamic balance screw holes 5 are provided on the upper end surface of the dynamic balance module 4.
[0008] 5 reinforcing ribs 6 are provided on the edge of the dynamic balance screw hole 5 of the dynamic balance module 4.
[0009] 5 reinforcing ribs 6 are provided on the edge of the dynamic balance screw hole 5 of the dynamic balance module 4.
[0010] The dynamic balance module 4 is vertically arranged on the dynamic balance baffle.
[0011] The utility model has the advantages and beneficial effects that a generator rotor dynamic balance baffle is provided, and has the advantages and beneficial effects that
[0012] 1. Simple structure, low production cost, and reusable;
[0013] 2. The rotor weight balance can be realized while ensuring the reliability of the rotor end face, the counterweight is detachable, and the dynamic balance can be repeatedly checked;
[0014] 3. The counterweight is convenient to install, and the weight increasing mode is well received by workers through factory measurement;
[0015] 4. The rotor weight balance and weight balance can be realized simultaneously on one part. DRAWINGS
[0016] Figure 1 is a structural schematic diagram of the utility model.
[0017] Figure 2 is a front structural schematic diagram of the utility model.
[0018] Among them: 1 - round hole, 2 - keyway, 3 - screw hole, 4 - dynamic balance module, 5 - dynamic balance screw hole, 6 - reinforcing rib. CONCRETE IMPLEMENTING METHOD
[0019] The utility model will be further described below in combination with the drawings.
[0020] For example, Figure 1 Figure 2The rotor dynamic balance baffle is a cross-shaped structure, wherein a circular hole 1 is arranged in the middle of the baffle and used for passing through a hollow shaft, the diameter of the circular hole 1 needs to be in interference fit with the diameter of the main rotor shaft of the motor, so that the main rotor and the dynamic balance baffle can reliably rotate together with the main rotor shaft; four semicircular key grooves 2 are oppositely arranged around the circular hole, the positioning of the baffle is realized through cooperation with the positioning keys pre-installed on the hollow shaft; four screw holes 3 are uniformly distributed around the circular hole and used for installing screws, the baffle and the main rotor are fixed through the screws; four dynamic balance modules 4 are uniformly arranged around the baffle, the dynamic balance modules 4 are vertically arranged on the dynamic balance baffle, so as to ensure that the rotor after the dynamic balance baffle is installed rotates uniformly, the outer contour of the dynamic balance module 4 can form a whole circle, and the diameter of the whole circle is the same as the diameter of the main rotor; a dynamic balance threaded hole 5 is processed on the dynamic balance module, an internal hexagonal screw is installed in the dynamic balance threaded hole 5 to realize the weight-increasing dynamic balance of the rotor; five reinforcing ribs 6 are arranged at the edge of the dynamic balance threaded hole 5 region, and each reinforcing rib 6 is between every two dynamic balance threaded holes 5, the reinforcing rib 6 can enhance the strength of the threaded hole 5 region on one hand, and can realize the weight-removing dynamic balance of the rotor by grinding the reinforcing rib 6 on the other hand.
[0021] The motor main rotor dynamic balance baffle is installed on two sections of the generator rotor core, is first fixed by smearing glue, and then is installed on the rotor core by using screws to pass through the four screw holes 3, when the weight-increasing dynamic balance is performed, the rotor is installed on the dynamic balance machine, the rotor speed is adjusted, the unbalance amount of the rotor and the installation position of the counterweight are measured by the machine, then an internal hexagonal flat head screw is screwed into the dynamic balance threaded hole on the dynamic balance module 4, a small amount of thread glue is smeared to fix the internal hexagonal flat head screw to prevent the screw from loosening, and thus the weight-increasing dynamic balance of the rotor is completed.
[0022] The motor main rotor dynamic balance baffle is installed on two sections of the generator rotor core, is first fixed by smearing glue, and then is installed on the rotor core by using screws to pass through the four screw holes 3, when the weight-increasing dynamic balance is performed, the rotor is installed on the dynamic balance machine, the rotor speed is adjusted, the unbalance amount of the rotor and the installation position of the counterweight are measured by the machine, then an internal hexagonal flat head screw is screwed into the dynamic balance threaded hole on the dynamic balance module 4, a small amount of thread glue is smeared to fix the internal hexagonal flat head screw to prevent the screw from loosening, and thus the weight-increasing dynamic balance of the rotor is completed.
Claims
1. A dynamic balancing baffle for a generator rotor, characterized in that, The dynamic balancing baffle is a cross-shaped structure, integrally formed, with a dynamic balancing module (4) at the end of the cross-shaped structure. A circular hole (1) is provided in the middle of the dynamic balancing baffle. Four keyways (2) are evenly distributed on the inner circumference of the circular hole (1), and four screw holes (3) are evenly distributed around the circular hole (1).
2. The generator rotor dynamic balancing baffle according to claim 1, characterized in that, The keyway (2) is a semi-circular keyway.
3. The generator rotor dynamic balancing baffle according to claim 1, characterized in that, The diameter of the circular hole (1) must be an interference fit with the diameter of the hollow shaft of the motor main rotor.
4. The generator rotor dynamic balancing baffle according to claim 1, characterized in that, The dynamic balancing module (4) has 11 dynamic balancing threaded holes (5) on its upper surface.
5. The generator rotor dynamic balancing baffle according to claim 1, characterized in that, The dynamic balancing module (4) has five reinforcing ribs (6) on the edge of the dynamic balancing threaded hole (5).
6. The generator rotor dynamic balancing baffle according to claim 1, characterized in that, The dynamic balancing module (4) has five reinforcing ribs (6) on its outer side, with each reinforcing rib located between every two dynamic balancing threaded holes (5).
7. The generator rotor dynamic balancing baffle according to claim 1, characterized in that, The dynamic balancing module (4) is arranged vertically on the dynamic balancing baffle.