Device for correcting balance of new energy shaftless rotor
By designing the left and right half-shafts and fixing components, the problem of stable connection and limiting in the balance correction of shaftless rotors for new energy was solved, achieving efficient and precise balance correction, reducing costs and time, and improving the stability and service life of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI SHENDIAN AUTOMOBILE ELECTRIC MOTORS CO LTD
- Filing Date
- 2025-04-02
- Publication Date
- 2026-05-19
AI Technical Summary
Existing technologies cannot effectively correct the balance of shaftless rotors in new energy sources, resulting in high costs, long processing times, low efficiency, and frequent equipment failures.
The design employs a left half-shaft, a right half-shaft, a shaftless rotor body, and fixing components. Through the cooperation of fixing holes and insertion rods, a stable connection and limiting of the shaftless rotor body are achieved, ensuring the stability and precise alignment of the device during high-speed rotation.
It improves the accuracy and efficiency of balance correction, reduces the difficulty and time cost of operation, extends the service life of the device, and ensures the stability and reliability of the device.
Smart Images
Figure CN224264824U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shaftless rotor correction technology, specifically to a device for correcting the balance of a new energy shaftless rotor. Background Technology
[0002] Traditional rotors consist of a rotor shaft running through a rotor core, with a bearing at each end. During balancing, two supports are used to balance the rotor at the two bearing positions.
[0003] The new energy rotor is a rotor shaft without a penetrating iron core. The new energy rotor is shaped like a "rice bowl". It has a central hole with a diameter of 8 mm at the bottom, and six holes with a diameter of 8.5 mm are evenly distributed around the central hole. Its bottom thickness is 14 mm.
[0004] For new energy rotors, due to their unique structure, balancing using traditional methods is impossible unless custom-made equipment is required, which significantly increases costs and time. Custom-made equipment necessitates hiring a professional team for design and development, and undergoing multiple rounds of review and modification. Manufacturing with special materials and small-batch production incurs high costs. During the commissioning phase, technical personnel are time-consuming, and problems may lead to additional material and improvement costs. Personnel training requires time and effort, including hiring experts, impacting production efficiency. The process from customization to deployment involves multiple stages, and the cumulative time spent at each stage affects production progress. Equipment malfunctions and repairs also require longer periods, further increasing time costs. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this utility model provides a device for balancing shaftless rotors in new energy sources, which solves the problems mentioned in the background art.
[0006] The solution to the above-mentioned technical problems provided by this utility model is as follows:
[0007] A device for balancing a new energy shaftless rotor includes a left half-shaft, a fixing component, a shaftless rotor body, and a right half-shaft.
[0008] The shaftless rotor body is provided with a groove, and a second fixing hole is provided through the groove. A right half-shaft is installed in the groove, and a left half-shaft is installed on the side of the shaftless rotor body opposite to the right half-shaft. The left half-shaft, the shaftless rotor body and the right half-shaft are locked and fixed by a fastener. The end of the left half-shaft and the right half-shaft located on the outside of the shaftless rotor body is a support end.
[0009] Based on the above technical solution, the present invention can be further improved as follows.
[0010] Furthermore, a first fixing hole is provided through the left half-shaft, and a third fixing hole is provided through the right half-shaft. The positions and sizes of the first fixing hole, the second fixing hole, and the third fixing hole are matched. The fixing member passes through the first fixing hole, the second fixing hole, and the third fixing hole to lock and fix the left half-shaft, the shaftless rotor body, and the right half-shaft.
[0011] The beneficial effects of adopting the above-mentioned further solutions are:
[0012] This ensures the stability of the connection between the left half-shaft, the shaftless rotor body, and the right half-shaft. During the balancing process, the device will withstand strong centrifugal forces and other external forces from high-speed rotation. The matching fixing holes and fasteners fit tightly, effectively preventing relative displacement or loosening between components. This stable connection guarantees the integrity of the entire device structure, allowing all components to work collaboratively during rotation, thus providing a reliable structural foundation for accurately detecting and calibrating the balance of the shaftless rotor body. If the component connections are unstable, the shaking or displacement generated during rotation will interfere with the accuracy of the detection parameters, leading to deviations in the calibration results and affecting the normal use of the device.
[0013] Furthermore, a through hole is provided on the left half-shaft, and a through rod is provided on the right half-shaft. The through rod passes through the shaftless rotor body and is inserted into the through hole of the left half-shaft. The through rod passes through the shaftless rotor body, further limiting the position of the shaftless rotor body and ensuring that the left half-shaft, the shaftless rotor body and the right half-shaft are aligned.
[0014] The beneficial effects of adopting the above-mentioned further solutions are:
[0015] On the one hand, the fit between the insert rod and the insertion hole provides additional restraint for the shaftless rotor body. During the operation of the device, especially when the shaftless rotor body rotates at high speed, it is subjected to a large centrifugal force. Without sufficient restraint measures, displacement can easily occur, thus affecting the balance of the entire device. The insert rod, which passes through the shaftless rotor body and is inserted into the insertion hole of the left half-shaft, effectively restrains the movement of the shaftless rotor body and prevents displacement. On the other hand, this design can precisely ensure that the left half-shaft, the shaftless rotor body, and the right half-shaft are aligned in space. Only when all components are precisely aligned can the entire device maintain a stable operating trajectory during rotation, avoiding vibration caused by component misalignment. Vibration not only affects the accuracy of balance correction, but long-term accumulation can also damage the mechanical structure of the device and shorten its service life.
[0016] Furthermore, the insertion hole and the insertion rod are located at the center of the left and right half-shafts, respectively.
[0017] The beneficial effects of adopting the above-mentioned further solutions are:
[0018] This significantly improves the axial stability of the device during rotation. Axle alignment is crucial when the device rotates at high speeds. If the insertion holes and rods are not aligned with the axis, it can cause eccentricity during rotation. Even minute eccentricities can be amplified by centrifugal force at high speeds, leading to strong vibrations. Positioning the insertion holes and rods at the axis ensures the entire device rotates around a stable axis, effectively reducing vibrations caused by axial misalignment. This not only improves the accuracy of balance correction, ensuring accurate detection and adjustment of the shaftless rotor's balance, but also reduces noise and mechanical wear during operation, extends the overall lifespan of the device, and enhances its reliability and stability.
[0019] Furthermore, the left and right half-shafts are supported on the calibration bracket via support ends.
[0020] The beneficial effects of adopting the above-mentioned further solutions are:
[0021] This significantly improves the convenience and efficiency of installing the device on the calibration support. Regardless of the spatial layout of the calibration site or the type of calibration equipment, operators can quickly and easily set up the device on the calibration support. This design eliminates the need for complex installation procedures and specialized tools, lowering the technical threshold and operational difficulty for operators. Simultaneously, the rapid installation process saves considerable time and improves work efficiency, enabling the completion of more shaftless rotor body balancing calibrations per unit time, meeting the high-efficiency calibration requirements of the production line. Furthermore, the simple installation method reduces the possibility of malfunctions during operation due to improper installation, improving the reliability of the device.
[0022] This utility model provides a device for balancing shaftless rotors in new energy sources. It has the following beneficial effects:
[0023] This device uses fasteners that pass through matching fixing holes on each component to tightly lock and fix the half-shaft to the shaftless rotor body. A stable connection structure is crucial during the balancing process. Because the rotor rotates at high speed during balancing, loose connections can easily lead to loosening. Once a component loosens, the rotor's center of gravity distribution changes, causing deviations in the balancing results and preventing accurate balancing. This unique connection and fixing method effectively avoids such problems, ensuring that all components remain stably connected throughout the balancing process, providing a solid foundation for accurate balancing.
[0024] The half-shaft is designed with insertion holes, corresponding to insertion rods that pass through the shaftless rotor body and insert into the insertion holes. This design serves a dual purpose. Firstly, it further limits the movement of the shaftless rotor body. During operation, especially when the rotor rotates at high speed, without reliable limiting measures, the rotor may shift due to external forces such as centrifugal force. Once the rotor shifts, its rotation trajectory will deviate from the normal path, affecting not only the accuracy of balance correction but also potentially damaging the equipment. Secondly, the cooperation between the insertion rod and the insertion holes ensures precise alignment between the half-shaft and the shaftless rotor body. Only with precise alignment of all components can the entire device maintain a stable rotational state during operation, avoiding vibration and imbalance problems caused by component misalignment, and greatly improving the stability of the device's operation.
[0025] The half-shaft, located on the outside of the shaftless rotor body, is designed as a support end—a highly ingenious and practical design. During actual balancing, the device needs to be mounted on a balancing support. The support end of this device can be directly and easily mounted on the balancing support, greatly improving operational convenience. Regardless of the balancing environment, workers can quickly and easily complete the setup without complex installation procedures or specialized tools. Compared to some balancing devices requiring complex installation steps, it significantly reduces balancing difficulty, saves considerable time and labor costs, and improves work efficiency.
[0026] The precise positioning of the insertion holes and rods at the center of the half-shaft is crucial for improving the overall performance of the device. During rotation, the consistency of the shaft center is essential for stable operation. Even minute deviations in the shaft center can be amplified by centrifugal force during high-speed rotor rotation, leading to severe vibrations. These vibrations not only affect the accuracy of balance calibration but can also damage the equipment itself and the surrounding environment. By placing the insertion holes and rods at the shaft center, this device effectively ensures consistent shaft centering throughout rotation, significantly reducing vibrations caused by shaft center deviations. This further improves the accuracy and effectiveness of balance calibration, ensuring stable and efficient operation of the device. Attached Figure Description
[0027] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.
[0028] In the attached diagram:
[0029] Figure 1 This is a cross-sectional structural diagram of the present invention;
[0030] Figure 2 This is a schematic diagram of the exploded structure of this utility model.
[0031] The attached diagram lists the components represented by each number as follows:
[0032] 1. Left half-shaft; 101. First fixing hole; 102. Insertion hole; 2. Fixing component; 3. Shaftless rotor body; 301. Second fixing hole; 302. Groove; 4. Right half-shaft; 401. Third fixing hole; 402. Insertion rod. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Please see Figures 1 to 2 As shown, the embodiments provided by this utility model are as follows:
[0035] A device for balancing a new energy shaftless rotor includes a left half-shaft 1, a fixing member 2, a shaftless rotor body 3, and a right half-shaft 4. The shaftless rotor body 3 has a groove 302, and a second fixing hole 301 is formed through the groove 302. The right half-shaft 4 is installed in the groove 302. The left half-shaft 1 is installed on the side of the shaftless rotor body 3 opposite to the right half-shaft 4. A first fixing hole 101 is formed through the left half-shaft 1, and a third fixing hole 401 is formed through the right half-shaft 4. The positions and sizes of the first fixing hole 101, the second fixing hole 301, and the third fixing hole 401 are matched. The fixing member 2 passes through the first fixing hole 101, the second fixing hole 301, and the third fixing hole 401 to lock and fix the left half-shaft 1, the shaftless rotor body 3, and the right half-shaft 4, ensuring the stability of the connection between the left half-shaft 1, the shaftless rotor body 3, and the right half-shaft 4. During the balancing process, the device is subjected to strong centrifugal forces and other external forces from high-speed rotation. The matching fixing holes and fixing parts 2 fit tightly, effectively preventing relative displacement or loosening between components. This stable connection ensures the integrity of the entire device structure, allowing each component to work collaboratively during rotation, thus providing a reliable structural foundation for accurately detecting and balancing the shaftless rotor body 3. If the component connections are unstable, the shaking or displacement generated during rotation will interfere with the accuracy of the detection parameters, leading to deviations in the calibration results and affecting the normal use of the device. The left half-shaft 1, the shaftless rotor body 3, and the right half-shaft 4 are locked and fixed by fixing parts 2. The ends of the left half-shaft 1 and the right half-shaft 4 located on the outside of the shaftless rotor body 3 serve as support ends. The left half-shaft 1 and the right half-shaft 4 are supported on the calibration bracket through the support ends, significantly improving the convenience and efficiency of installing the device on the calibration bracket. Regardless of the spatial layout of the calibration site or the type of calibration equipment, staff can quickly and easily set up the device on the calibration bracket. This design eliminates the need for complex installation procedures and professional tools, reducing the technical threshold and operational difficulty for operators. Meanwhile, the rapid installation process saves a significant amount of time and improves work efficiency, enabling more shaftless rotor bodies 3 to be balanced and corrected within a given time frame, thus meeting the production line's demand for efficient correction. Furthermore, the simple installation method reduces the likelihood of malfunctions during operation due to improper installation, improving the reliability of the device. A through-hole 102 is provided on the left half-shaft 1, and a rod 402 is provided on the right half-shaft 4. The rod 402 penetrates the shaftless rotor body 3 and inserts into the through-hole 102 of the left half-shaft 1. The rod 402 further limits the position of the shaftless rotor body 3 and ensures alignment of the left half-shaft 1, the shaftless rotor body 3, and the right half-shaft 4. On one hand, the cooperation between the rod 402 and the through-hole 102 provides additional limiting for the shaftless rotor body 3.During device operation, especially when the shaftless rotor body 3 rotates at high speed, it is subjected to significant centrifugal force. Without sufficient limiting measures, displacement can easily occur, affecting the overall balance of the device. The insertion rod 402, penetrating the shaftless rotor body 3 and inserted into the insertion hole 102 of the left half-shaft 1, effectively constrains the movement of the shaftless rotor body 3, preventing displacement. Furthermore, this design precisely ensures the spatial alignment of the left half-shaft 1, the shaftless rotor body 3, and the right half-shaft 4. Only with precise alignment of all components can the entire device maintain a stable operating trajectory during rotation, avoiding vibration caused by component misalignment. Vibration not only affects the accuracy of balance correction but can also damage the mechanical structure of the device over time, shortening its service life. The insertion hole 102 and the insertion rod 402 are located at the axis of the left half-shaft 1 and the right half-shaft 4, respectively, greatly improving the axial stability of the device during rotation. Axial alignment is crucial when the device rotates at high speed. If the insertion hole 102 and the insertion rod 402 are not located at the axis, it will cause eccentricity during the rotation of the device. Even a small eccentricity will be amplified by centrifugal force under high-speed rotation, causing strong vibrations. By placing the insertion hole 102 and the insertion rod 402 at the axis, the entire device can be ensured to rotate around a stable axis, effectively reducing vibrations caused by axis deviation. This not only helps improve the accuracy of balance correction, ensuring accurate detection and adjustment of the balance state of the shaftless rotor body 3, but also reduces noise and mechanical wear during device operation, extends the overall service life of the device, and improves its reliability and stability.
[0036] Working principle:
[0037] Assemble the half-shaft and shaftless rotor body 3. Initial positioning and alignment are achieved using the engagement of the insertion rod 402 and the insertion hole 102. The insertion rod 402 passes through the shaftless rotor body 3 and is inserted into the corresponding insertion hole 102. This design ensures precise alignment between the half-shaft and the shaftless rotor body 3, laying the foundation for stable rotation. If the components are not precisely aligned, vibration and imbalance will occur during device operation due to component misalignment. After the insertion rod 402 and insertion hole 102 are engaged, a fastener 2 is used to pass through the corresponding fastening holes on each component, thereby tightly locking and fixing the half-shaft and shaftless rotor body 3. The principle is that the fastening effect of the fastener 2 ensures that no components will loosen during the balance calibration process. Because the rotor rotates at high speed during calibration, if the component connections are not secure, the rotor's center of gravity distribution will change, leading to deviations in the calibration results.
[0038] The assembled device is then mounted on the calibration bracket. The end of the half-shaft located outside the shaftless rotor body 3 is designed as a support end, which can be directly and easily mounted on the calibration bracket. Regardless of the calibration environment, operators can complete this operation quickly and easily without complicated installation procedures or specialized tools, greatly improving operational convenience and saving time and labor costs.
[0039] The calibration equipment is activated, causing the device to rotate at high speed. During rotation, based on the principle of precise shaft positioning, since the insertion hole 102 and the insertion rod 402 are precisely located at the shaft center of the half-shaft, the shaft center of the entire device is effectively kept consistent throughout the rotation process. If there is a deviation in the shaft center, even a small deviation, it will be amplified by centrifugal force during high-speed rotor rotation, causing strong vibrations in the device and affecting the accuracy of the balance calibration. The calibration equipment determines the balance state of the shaftless rotor body 3 by detecting parameters such as the vibration generated during the rotation of the device. If an imbalance is detected, it calculates the position and weight that need to be adjusted according to a preset algorithm. Based on this, the operator performs counterweight or weight removal operations on the shaftless rotor body 3 to achieve the purpose of balance calibration.
[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A device for balancing a shaftless rotor in a new energy source, comprising a left half-shaft (1), a fixing component (2), a shaftless rotor body (3), and a right half-shaft (4), characterized in that: The shaftless rotor body (3) is provided with a groove (302). The shaftless rotor body (3) is provided with a second fixing hole (301) through the groove (302). The right half shaft (4) is installed in the groove (302). The left half shaft (1) is installed on the side of the shaftless rotor body (3) away from the right half shaft (4). The left half shaft (1), the shaftless rotor body (3) and the right half shaft (4) are locked and fixed by a fixing member (2). The left half shaft (1) and the right half shaft (4) are located at the outer end of the shaftless rotor body (3) as a support end.
2. The device for balancing a shaftless rotor in a new energy source according to claim 1, characterized in that: The left half-shaft (1) has a first fixing hole (101) through it, and the right half-shaft (4) has a third fixing hole (401) through it. The positions and sizes of the first fixing hole (101), the second fixing hole (301) and the third fixing hole (401) are matched. The fixing member (2) passes through the first fixing hole (101), the second fixing hole (301) and the third fixing hole (401) to lock and fix the left half-shaft (1), the shaftless rotor body (3) and the right half-shaft (4).
3. The device for balancing a shaftless rotor in a new energy source according to claim 1, characterized in that: The left half-shaft (1) has a through hole (102), and the right half-shaft (4) has a plug (402). The plug (402) passes through the shaftless rotor body (3) and is inserted into the through hole (102) of the left half-shaft (1). The plug (402) passes through the shaftless rotor body (3) to further limit the shaftless rotor body (3) and ensure that the left half-shaft (1), the shaftless rotor body (3) and the right half-shaft (4) are aligned.
4. The device for balancing a shaftless rotor in a new energy source according to claim 3, characterized in that: The insertion hole (102) and the insertion rod (402) are located at the center of the left half-shaft (1) and the right half-shaft (4), respectively.
5. The device for balancing a shaftless rotor in a new energy source according to claim 1, characterized in that: The left half-shaft (1) and the right half-shaft (4) are supported on the correction bracket by the support end.