Wheel disc balancing structure

Abstract

The utility model belongs to the technical field of wheel discs and discloses a wheel disc balancing structure. The wheel disc balance structure comprises an impeller disc and a balance part, the impeller disc is provided with three branch structures including an impeller belt comb tooth branch, an impeller belt arm branch and an impeller belt elastic hairpin branch, and at least one of the three branch structures is provided with a mounting groove; the balance part comprises a removal part and a fixing part which are connected, the fixing part is installed in the installation groove, and the removal part is arranged on the surface of the installation groove in a protruding mode and can remove materials to adjust mass. The wheel disc balancing structure adjusts the dynamic balance of the wheel disc by adjusting the material of the removing part of the balancing piece, and the wheel disc does not need to be turned and ground. The design not only can protect the structural integrity and stability of the wheel disc and prevent the wheel disc from being damaged, but also improves the processing efficiency and reduces the cost due to the fact that the balance part is simple and convenient to process and rapid to adjust.

Description

Technical Field

[0001] This utility model relates to the field of wheel technology, and in particular to a wheel balancing structure. Background Technology

[0002] When the compressor disk and turbine disk rotate at high speed, they can convert thermal energy into rotational mechanical energy. To ensure the dynamic balance of the impeller disk during operation, two methods are commonly used: removing its own material or adding counterweights.

[0003] The material removal method is relatively simple in structure and operation, but with the improvement of engine performance, the requirements for the material performance of disc components are also increasing. Compressor discs are generally made of stainless steel, titanium alloys, and high-temperature alloys, while turbine discs, due to their harsh working environment and the need to withstand high-temperature loads, are mostly made of high-temperature alloys and powder metallurgy high-temperature alloys. These materials have high strength and hardness, low thermal conductivity, and a severe tendency to harden during machining, which can lead to problems such as high cutting forces, high temperatures, difficulty in breaking chips, short tool life, and difficulty in ensuring surface finish. The method of adding counterweights requires adding a counterweight structure to the impeller disc. However, the counterweight structure is complex, the operation during balancing is complicated, and the position of the counterweights needs to be constantly adjusted by counting. Utility Model Content

[0004] The purpose of this invention is to provide a wheel balancing structure to address the shortcomings of existing balancing methods, improve wheel balancing performance, reduce processing difficulty, and enhance the overall stability and reliability of the wheel.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A roulette wheel balancing structure, comprising:

[0007] An impeller disk has three branch structures: an impeller with a grate branch, an impeller with an arm branch, and an impeller with an elastic hairpin branch. At least one of the three branch structures has a mounting groove.

[0008] The balancing component includes a removal part and a fixing part connected to each other. The fixing part is installed in the mounting groove, and the removal part protrudes from the surface of the mounting groove. The removal part is capable of removing material for adjusting the mass.

[0009] As an alternative to the impeller balancing structure, the impeller includes a impeller body, each of which is connected to three of the branch structures. The opening of the mounting groove faces the rim of the impeller body; or the opening of the mounting groove faces the core of the impeller body.

[0010] As an alternative to the wheel balancing structure, all three branch structures are annular, the mounting groove is an annular mounting groove, the annular mounting groove surrounds the annular surface of the branch structure in the circumferential direction, the balancing component is an annular balancing component, and the fixing part of the annular balancing component is installed in the annular mounting groove.

[0011] As an alternative to the wheel balancing structure, the mounting groove is an arc-shaped mounting groove, which is spaced circumferentially along the annular surface of the branch structure. The balancing component is an arc-shaped balancing component, and the fixing part of the arc-shaped balancing component is installed in the arc-shaped mounting groove.

[0012] As an alternative to the wheel balancing structure, the wheel balancing structure also includes fasteners. The mounting groove is divided into a snap-fit ​​groove section and a fastening groove section. The snap-fit ​​groove section snaps into the fixing part. The fastener passes through the fixing part and the branch structure, so that the fixing part and the branch structure are fixedly connected.

[0013] As an alternative to the wheel balancing structure, the two side walls of the snap-fit ​​groove section are wavy along the depth direction of the mounting groove, and the two side walls of the fixing part are in contact with the two side walls of the snap-fit ​​groove section.

[0014] As an alternative to the wheel balancing structure, the distance between the two side walls of the snap-fit ​​groove gradually decreases along the depth direction of the mounting groove, and the two side walls of the fixing part fit against the side walls of the snap-fit ​​groove.

[0015] As an alternative to the wheel balancing structure, the spacing between the two side walls of the fastening groove section is equal, the cross-section of the balancing component is convex, the fastener is a fastening screw, the fastening screw is located on both sides of the removal part, and passes through the fixing part and the branch structure, so that the fixing part and the branch structure are fixedly connected.

[0016] As an alternative to the wheel balancing structure, the two side walls of the fastening groove are equally spaced, the cross-section of the balancing component is convex, and the fastener is a countersunk screw that passes through the bottom wall of the mounting groove and is fixedly connected to the balancing component.

[0017] As an alternative to the wheel balancing structure, the bottom wall of the mounting groove is a flat surface; or the bottom wall of the mounting groove is a concave arc surface.

[0018] Beneficial effects:

[0019] This invention provides a wheel balancing structure. At least one of the three branch structures on the impeller disc—an impeller with a serrated tooth branch, an impeller with an arm branch, and an impeller with an elastic hairpin branch—is provided with a mounting groove. The fixing part of the balancing component is installed within the mounting groove, and the removal part protrudes from the surface of the mounting groove. The removal part can remove material for mass adjustment, thereby adjusting the dynamic balance of the wheel disc. This wheel balancing structure adjusts the dynamic balance of the wheel disc by adjusting the material removed by the balancing component, eliminating the need to grind the wheel disc itself. This design not only protects the structural integrity and stability of the wheel disc from damage, but also improves processing efficiency and reduces costs due to the simple processing and rapid adjustment of the balancing component. Attached Figure Description

[0020] Figure 1 This is a first schematic diagram of the wheel balancing structure provided in this embodiment of the present invention;

[0021] Figure 2 This is a second schematic diagram of the wheel balancing structure provided in this embodiment of the present invention;

[0022] Figure 3 This is a third schematic diagram of the wheel balancing structure provided in this embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the annular balancing component provided in this embodiment of the utility model;

[0024] Figure 5 This is a schematic diagram of the arc-shaped balancing component provided in this embodiment of the utility model;

[0025] Figure 6 This is a first schematic diagram of the snap-fit ​​groove segment provided in this embodiment of the present invention;

[0026] Figure 7 This is a second schematic diagram of the snap-fit ​​groove section provided in this embodiment of the present invention;

[0027] Figure 8 This is a first schematic diagram of the fastening groove section provided in this embodiment of the utility model;

[0028] Figure 9 This is a second schematic diagram of the fastening groove section provided in this embodiment of the present invention;

[0029] Figure 10 This is a third schematic diagram of the fastening groove section provided in this embodiment of the utility model.

[0030] In the picture:

[0031] 1. Impeller disk; 11. Impeller body; 12. Blade; 13. Impeller with grate branch; 14. Impeller with arm branch; 15. Impeller with elastic hairpin branch; 16. Mounting slot; 111. Wheel core; 112. Wheel back; 113. Wheel rim; 161. Snap-fit ​​groove section; 162. Fastening groove section;

[0032] 21. Removal part; 22. Fixing part; 23. Annular balancing component; 24. Arc-shaped balancing component;

[0033] 31. Fastening screw; 32. Countersunk screw. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not the entire structure.

[0035] In the description of this utility model, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part of the device. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this embodiment, the terms "upper" and "lower," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0038] This embodiment provides a wheel balancing structure, such as Figures 1-10As shown, the wheel balancing structure includes an impeller disk 1 and a balancing component. The impeller disk 1 has three branch structures: an impeller with a toothed grate branch 13, an impeller with an arm branch 14, and an impeller with an elastic hairpin branch 15. At least one of the three branch structures has a mounting groove 16. The balancing component includes a removal part 21 and a fixing part 22 connected to each other. The fixing part 22 is installed in the mounting groove 16, and the removal part 21 protrudes from the surface of the mounting groove 16. The removal part 21 can remove material for adjusting the mass. This wheel balancing structure adjusts the dynamic balance of the wheel by adjusting the material in the removal part 21 of the balancing component, without having to grind the impeller disk 1 itself. This design not only protects the structural integrity and stability of the wheel and prevents damage, but also improves processing efficiency and reduces costs because the balancing component is easy to process and quick to adjust.

[0039] Optionally, this disc balancing structure is suitable for compressor discs and turbine discs of aircraft engines. Optionally, this disc balancing structure is also suitable for compressor discs and turbine discs of gas turbines.

[0040] Specifically, such as Figures 1-3 As shown, if the impeller disk 1 simultaneously has three branch structures: impeller with grate branch 13, impeller with arm branch 14, and impeller with elastic hairpin branch 15, the mounting groove 16 can be formed in one of the branch structures, in two of the branch structures, or in all three branch structures. If the impeller disk 1 has two of the above three branch structures, the mounting groove 16 can be formed in both branch structures or only in one of the branch structures. If the impeller disk 1 has only one of the above three branch structures, the mounting groove 16 is formed only in that branch structure.

[0041] like Figures 1-3 As shown, the impeller disk 1 includes a disk body 11, which is connected to three branch structures. The opening of the mounting groove 16 faces the rim 113 of the disk body 11; or, the opening of the mounting groove 16 faces the core 111 of the disk body 11. When the opening faces the rim 113, the linear velocity of the rim 113 is high, allowing for more sensitive balance adjustment, and the open space facilitates the installation and maintenance of the balancing components. When the opening faces the core 111, the linear velocity of the core 111 is low, allowing for more stable balance adjustment, and the relatively enclosed environment provides some protection for the balancing components.

[0042] Optionally, in this embodiment, when the impeller disk 1 has two or three of the above three branch structures, and the mounting groove 16 has two or three corresponding mounting grooves, mounting grooves 16 with openings facing the rim 113 and the core 111 can be provided simultaneously. The mounting groove 16 with its opening facing the rim 113 facilitates installation and maintenance, and allows for quick coarse balance adjustment; the mounting groove 16 with its opening facing the core 111 protects the balancing components and is suitable for fine-tuning. The combination of these two features allows for precise balance adjustment while ensuring the strength of the impeller disk 1, thus improving the stability and reliability of the disk's operation. Optionally, the openings of the mounting grooves 16 can also all face the rim 113 of the disk body 11. Optionally, the openings of the mounting grooves 16 can also all face the core 111 of the disk body 11.

[0043] Specifically, the impeller disk 1 also includes blades 12, which are connected to the rim 113 of the disk body 11. The wheel core 111 and the rim 113 of the disk body 11 are connected by the wheel back 112, and the disk body 11 is integrally formed.

[0044] Example 1

[0045] This embodiment describes the specific implementation of the mounting slot 16 and the balancing component.

[0046] like Figure 4 As shown, all three branch structures are annular. The mounting groove 16 is an annular mounting groove, with its annular surface circumferentially surrounding the branch structure. The balancing component is an annular balancing component 23, with its fixing part 22 installed within the annular mounting groove. The annular balancing component 23, installed within the annular mounting groove circumferentially surrounding the branch structure, can evenly distribute the mass adjustment, achieving precise multi-directional balance adjustment while enhancing structural integrity and effectively reducing vibration impact. In terms of installation and maintenance, its integrated design not only improves installation accuracy and convenience but also facilitates rapid positioning and replacement, enhancing maintenance operability, shortening working hours, and improving the wheel's balance accuracy, operational reliability, and service life.

[0047] like Figures 6-10As shown, the wheel balancing structure also includes fasteners. The mounting slot 16 is divided into a snap-fit ​​slot section 161 and a fastening slot section 162. The snap-fit ​​slot section 161 snaps into the fixing part 22, and the fasteners pass through the fixing part 22 and the branch structure, thus fixing the fixing part 22 and the branch structure together. The wheel balancing structure forms a double fixing mechanism by dividing the mounting slot 16 into a snap-fit ​​slot section 161 and a fastening slot section 162, which are used in conjunction with fasteners. The snap-fit ​​slot section 161 initially positions the balancing component to prevent its initial displacement, while the fasteners provide strong fastening force when the wheel rotates at high speed, preventing the balancing component from loosening and falling off, ensuring that the balancing component is always in the accurate position, and improving the reliability and durability of the balance adjustment. At the same time, this design facilitates installation, disassembly, and maintenance, simplifies the process, reduces operational difficulty, reduces component damage, enhances the overall structural stability of the wheel, and effectively ensures the reliability and economy of equipment operation.

[0048] like Figure 7 As shown, the two side walls of the snap-fit ​​groove 161 are wavy along the depth direction of the mounting groove 16, and the two side walls of the fixing part 22 fit against the two side walls of the snap-fit ​​groove 161. The wavy side walls create a three-dimensional contact structure with interlocking concave and convex surfaces between the snap-fit ​​groove 161 and the fixing part 22, which increases the contact area and friction compared to straight side walls. Under complex working conditions such as centrifugal force and vibration generated by the high-speed rotation of the wheel, this structure can effectively prevent the balancing component from sliding radially or circumferentially along the mounting groove 16, greatly improving the anti-loosening capability. At the same time, the wavy design has a certain guiding effect during assembly, making it easy for the fixing part 22 to be accurately embedded into the snap-fit ​​groove 161, ensuring the accuracy of the balancing component's installation position, and thus ensuring the accuracy and stability of the wheel balance adjustment.

[0049] like Figure 6 As shown, the distance between the two side walls of the snap-fit ​​groove 161 gradually decreases along the depth direction of the mounting groove 16, and the two side walls of the fixing part 22 fit against the side walls of the snap-fit ​​groove 161. The gradually widening groove walls and the side walls of the fixing part 22 form a wedge-shaped mating structure. Under complex working conditions such as centrifugal force and vibration generated by the high-speed rotation of the wheel, this self-locking force can effectively resist the tendency of the balancing component to come out and prevent the balancing component from loosening and shifting. Compared with groove walls of equal width, this structure does not require additional complex anti-loosening devices and can achieve reliable fixation solely by the geometric characteristics of the structure itself.

[0050] like Figure 8As shown, the distance between the two side walls of the fastening groove section 162 is equal, the cross-section of the balancing component is convex, and the fastener is a fastening screw 31. The fastening screw 31 is located on both sides of the removal part 21 and passes through the fixing part 22 and the branch structure, so that the fixing part 22 and the branch structure are fixedly connected. The distance between the two side walls of the fastening groove section 162 is equal, which makes it easy for the balancing component to be pushed into the snap-fit ​​groove section 161 from the fastening groove section 162 end during assembly, so that the fixing part 22 can be more smoothly embedded into the snap-fit ​​groove section 161. The fastening screws 31 on both sides pass through the fixing part 22 and the branch structure, applying fastening force from both sides to form a symmetrical and firm connection. Compared with single-sided fixing, it can more effectively resist the centrifugal force, vibration and other external forces generated when the wheel rotates at high speed, prevent the balancing component from loosening or shifting, and ensure the durability and reliability of the balance adjustment effect.

[0051] like Figure 9 As shown, the spacing between the two side walls of the fastening groove 162 is equal, the cross-section of the balancing component is convex, and the fastener is a countersunk screw 32. The countersunk screw 32 passes through the bottom wall of the mounting groove 16 and is fixedly connected to the balancing component. Using countersunk screws 32 to fix the balancing component through the bottom wall of the mounting groove 16 can avoid the screw head protruding and affecting the operation of the wheel, and reduce air resistance and vibration; the countersunk design facilitates disassembly and assembly, and can ensure the precise positioning of the balancing component; its fastening force can resist external forces such as centrifugal force, prevent the balancing component from loosening, and ensure the safe and stable operation of the wheel.

[0052] like Figure 9 As shown, the bottom wall of the mounting groove 16 is flat. The flat bottom wall provides a flat and stable support surface, ensuring uniform contact between the balancing component fixing part 22 and the mounting groove 16, and avoiding local stress concentration caused by uneven force. During installation, the flat bottom wall facilitates quick positioning of the balancing component, reducing installation errors. When used with fasteners, it allows the fastening force to be transmitted more evenly to the balancing component and the branch structure, enhancing the overall fixing effect. In addition, the flat structure is easy to process and manufacture, which can reduce production difficulty and cost.

[0053] like Figure 10 As shown, the bottom wall of the mounting groove 16 is a concave arc-shaped surface. The concave arc-shaped surface matches the shape of the bottom of the balancer, increasing the contact area between the two. This allows the balancer to fit more tightly with the mounting groove 16 after installation. When the disc rotates at high speed and generates centrifugal force, it can effectively disperse the force, avoid local stress concentration, and improve the stability and durability of the structure.

[0054] Example 2

[0055] This embodiment describes another specific implementation of the mounting groove 16 and the balancing component. The structure is largely the same as that of the mounting groove 16 and the balancing component provided in Embodiment 1, and the similarities will not be repeated here. The main differences are:

[0056] like Figure 5As shown, the mounting groove 16 is an arc-shaped mounting groove, which is spaced circumferentially on the annular surface of the branch structure. The balancing component is an arc-shaped balancing component 24, and the fixing part 22 of the arc-shaped balancing component 24 is installed in the arc-shaped mounting groove. In terms of balance adjustment, it can flexibly and accurately adjust the imbalance in specific areas of the wheel, avoiding unnecessary adjustments and reducing costs. Regarding structural adaptability, it can adapt to special structures and working conditions, meeting special requirements such as space constraints, while reducing the impact on the strength of the branch structure. In terms of installation and maintenance, it is easy to operate, facilitating quick location and replacement of faulty or adjustable balancing components, thus improving the overall performance and reliability of the wheel.

[0057] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A wheel balancing structure, characterized by, include: Impeller disk (1), the impeller disk (1) is provided with three branch structures: impeller with grating tooth branch (13), impeller with arm branch (14) and impeller with elastic hairpin branch (15), and at least one of the three branch structures is provided with a mounting groove (16); The balancing component includes a removal part (21) and a fixing part (22) connected to each other. The fixing part (22) is installed in the mounting groove (16). The removal part (21) protrudes from the surface of the mounting groove (16) and is capable of removing material for adjusting the mass.

2. The wheel balance structure according to claim 1, wherein The impeller disk (1) includes a disk body (11), which is connected to the three branch structures. The opening of the mounting groove (16) faces the rim (113) of the disk body (11); or the opening of the mounting groove (16) faces the core (111) of the disk body (11).

3. The wheel balance structure according to claim 2, wherein All three branch structures are annular, the mounting groove (16) is an annular mounting groove, the annular mounting groove surrounds the annular surface of the branch structure along the circumference of the branch structure, the balancing component is an annular balancing component (23), and the fixing part (22) of the annular balancing component (23) is installed in the annular mounting groove.

4. The wheel balance structure according to claim 2, wherein The mounting groove (16) is an arc-shaped mounting groove, which is spaced along the circumference of the branch structure on the annular surface of the branch structure. The balancing component is an arc-shaped balancing component (24), and the fixing part (22) of the arc-shaped balancing component (24) is installed in the arc-shaped mounting groove.

5. A wheel balance arrangement according to claim 3 or 4, characterised in that, The wheel balancing structure also includes fasteners. The mounting groove (16) is divided into a snap-fit ​​groove section (161) and a fastening groove section (162). The snap-fit ​​groove section (161) snaps into the fixing part (22). The fastener passes through the fixing part (22) and the branch structure, so that the fixing part (22) and the branch structure are fixedly connected.

6. The wheel balance structure according to claim 5, wherein The two side walls of the snap-fit ​​groove section (161) are wavy along the depth direction of the mounting groove (16), and the two side walls of the fixing part (22) are in contact with the two side walls of the snap-fit ​​groove section (161).

7. The wheel balance structure according to claim 5, wherein The distance between the two side walls of the snap-fit ​​groove section (161) gradually decreases along the depth direction of the mounting groove (16), and the two side walls of the fixing part (22) fit against the side wall of the snap-fit ​​groove section (161).

8. The wheel balance structure according to claim 5, wherein The spacing between the two side walls of the fastening groove section (162) is equal, the cross-section of the balancing member is convex, the fastener is a fastening screw (31), the fastening screw (31) is located on both sides of the removal part (21), and passes through the fixing part (22) and the branch structure, so that the fixing part (22) and the branch structure are fixedly connected.

9. The wheel balance structure according to claim 5, wherein The two side walls of the fastening groove (162) are equally spaced, the cross-section of the balancing component is convex, the fastener is a countersunk screw (32), and the countersunk screw (32) passes through the bottom wall of the mounting groove (16) and is fixedly connected to the balancing component.

10. The wheel balance structure according to claim 8, wherein The bottom wall of the mounting groove (16) is a plane; or the bottom wall of the mounting groove (16) is a concave arc surface.

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