Wheel guard device for removing paint from a metro wheel set

By combining magnetic fixing and flexible protective components, the problem of cumbersome operation and damage to the wheel surface caused by traditional tape is solved, achieving fast and firm wheel protection and adapting to the paint removal needs of wheels of different sizes.

CN224465867UActive Publication Date: 2026-07-07CSR CHENGDU

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CSR CHENGDU
Filing Date
2025-06-26
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing technologies for removing paint from subway train wheelsets involve cumbersome operations using tape and film, and the removal process can easily damage the paint on the wheel surface, resulting in low efficiency.

Method used

The system employs a combination of magnetic fixation and flexible protective components. The outer and inner ring fixing components are respectively attached to the inner and outer ring end faces of the wheel, while the flexible protective components cover the area between the inner and outer rings, forming a fast and robust protective structure that can adapt to wheels of different sizes.

Benefits of technology

It enables quick installation and removal, effectively isolates paint remover splashes, protects the wheel surface from damage, is easy and efficient to operate, has a wide range of applications, and is suitable for wheels of different sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a wheel protection device for subway wheel pair paint removal, which comprises an outer ring fixing part, an inner ring fixing part and a flexible protection part. The outer ring fixing part is used for being magnetically attracted and fixed to the end face of the outer ring of the wheel on the inner side of the wheel. The inner ring fixing part is arranged on the inner ring of the outer ring fixing part and is used for being magnetically attracted and fixed to the end face of the inner ring of the wheel on the inner side of the wheel. The outer ring of the flexible protection part is connected with the outer ring fixing part, and the inner ring of the flexible protection part is connected with the inner ring fixing part. The flexible protection part is used for covering at least the area between the end faces of the inner and outer rings of the wheel. The application adopts the magnetic attraction fixing and flexible protection scheme, realizes effective isolation of the inner side of the wheel and the external environment, is quick and efficient, firm and reliable in connection, can flexibly adjust the radial coverage area, and is suitable for wheels of different sizes.
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Description

Technical Field

[0001] This application relates to the field of rail vehicle technology, and more specifically, to a wheel protection device for preventing paint peeling from subway wheelsets. Background Technology

[0002] During the maintenance of subway trains, especially during the overhaul of bogie wheelsets, it is necessary to remove the paint layer from the wheel axle surface. Currently, the common method is to apply paint remover by brushing. Before removing the paint, a layer of tape and plastic film needs to be applied and covered to the non-painted areas of the wheel surface to prevent the paint from being damaged by the paint remover. However, the above method requires a large amount of tape and film, is cumbersome, and removing the tape may damage the paint on the wheel surface. Cleaning up the residual tape and film is also time-consuming, labor-intensive, and inefficient. Utility Model Content

[0003] This application provides a wheel protection device for paint peeling of subway wheelsets. It is quick and easy to connect, strong and reliable, and can flexibly adjust the radial coverage area to adapt to wheels of different sizes.

[0004] This application provides a wheel protection device for paint peeling on subway wheelsets, comprising:

[0005] Outer ring fastener, the outer ring fastener is used to magnetically fix the outer ring end face of the wheel to the inner side of the wheel;

[0006] An inner ring fastener is disposed within the inner ring of the outer ring fastener, and the inner ring fastener is used to magnetically fasten to the inner ring end face of the wheel on the inner side of the wheel.

[0007] A flexible protective component, wherein the outer ring of the flexible protective component is connected to the outer ring fixing component, and the inner ring of the flexible protective component is connected to the inner ring fixing component, and the flexible protective component is used to cover at least the area between the inner and outer ring end faces of the wheel.

[0008] In some embodiments, the outer ring fastener includes a plurality of outer ring magnetic rings, which are circumferentially distributed and magnetically fixed to the outer ring end face of the wheel.

[0009] In some embodiments, the inner ring fastener includes a plurality of inner ring magnetic rings, which are circumferentially distributed and magnetically fixed to the inner ring end face of the wheel.

[0010] In some embodiments, the flexible protective component includes a plurality of circumferentially distributed flexible protective units, each flexible protective unit being arc-shaped, with the outer ring of each flexible protective unit fixedly connected to the outer ring magnetic ring, and the inner ring of each flexible protective unit fixedly connected to the inner ring magnetic ring.

[0011] In some embodiments, the flexible protective member is bonded and fixed to the outer ring fixing member and the inner ring fixing member.

[0012] In some embodiments, the outer edge of the flexible protective member is flush with the outer edge of the outer ring fastener, and the inner edge of the flexible protective member is flush with the inner edge of the inner ring fastener.

[0013] In some embodiments, the two ends of the flexible protective unit extend 10 mm to 100 mm beyond the end face of the outer magnetic ring in the circumferential direction.

[0014] In some embodiments, the two ends of the flexible protective unit extend 10 mm to 100 mm beyond the end face of the inner magnetic ring in the circumferential direction.

[0015] In some embodiments, the flexible protective component is a cotton flexible protective component, a polyester fiber flexible protective component, or a cotton and polyester fiber blended flexible protective component.

[0016] In this embodiment, a magnetic fixing and flexible protection scheme is adopted. The outer ring fixing component and the inner ring fixing component are quickly and firmly attached to the outer and inner end faces of the wheel on the inner side of the wheel. The outer ring fixing component and the inner ring fixing component are connected by a flexible protective component. The outer ring fixing component, the inner ring fixing component and the flexible protective component are combined to form a wheel isolation structure, which effectively isolates the inner side of the wheel from the external environment and prevents paint splashes from damaging the wheel. The magnetic connection scheme is quick, efficient and reliable. The whole operation process is simple, fast and efficient. The flexible protective component can flexibly adjust the radial coverage area and can adapt to wheels of different sizes, with a wide range of applications. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 A schematic diagram of a wheel protection device for paint peeling off subway wheelsets provided in some embodiments of this application;

[0019] Figure 2 A side view of a wheel protection device for paint stripping of subway wheelsets provided in some embodiments of this application.

[0020] The attached figures are labeled as follows:

[0021] 1-Outer ring fastener; 2-Flexible protective component; 3-Inner ring fastener;

[0022] 11-Outer ring magnetic ring; 21-Flexible protective unit; 31-Inner ring magnetic ring. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. The terms "first," "second," etc., are used to distinguish different objects, not to describe a particular order or hierarchy.

[0025] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0028] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0029] In this application, "multiple" means two or more (including two).

[0030] Please refer to Figure 1 and Figure 2 , Figure 1 A schematic diagram of a wheel protection device for paint peeling off subway wheelsets provided in some embodiments of this application; Figure 2 A side view of a wheel protection device for paint stripping of subway wheelsets provided in some embodiments of this application.

[0031] This application provides a wheel protection device for paint peeling of subway wheelsets, mainly including: an outer ring fixing member 1, an inner ring fixing member 3, and a flexible protective member 2. The outer ring fixing member 1 is used to magnetically fix the outer ring end face of the wheel on the inner side of the wheel. The inner ring fixing member 3 is disposed on the inner ring of the outer ring fixing member 1 and is used to magnetically fix the inner ring end face of the wheel on the inner side of the wheel. The outer ring of the flexible protective member 2 is connected to the outer ring fixing member 1, and the inner ring of the flexible protective member 2 is connected to the inner ring fixing member 3. The flexible protective member 2 can at least cover the area between the inner and outer ring end faces of the wheel.

[0032] Both the outer ring fastener 1 and the inner ring fastener 3 can be sheet-like, plate-like, block-like, or ring-like structures. The outer ring fastener 1 and the inner ring fastener 3 are made of magnetic material, and their dimensions are set according to the dimensions of the outer ring and the inner ring of the wheel, respectively, to ensure the firm adhesion to the outer and inner rings of the wheel.

[0033] The flexible protective component 2 can be made of soft or flexible materials, such as fiber materials, rubber, silicone, gel materials, plastic materials, foam materials, etc. The flexible protective component 2 can be set with one or more layers to form a protective structure to achieve effective coverage of the area between the inner and outer end faces of the wheel.

[0034] The flexible protective component 2 possesses a certain degree of flexibility, allowing it to be freely bent, unfolded, and folded. It also exhibits a certain level of strength, with good tear resistance, and can prevent damage caused by solid paint splattering. Furthermore, the flexible protective component 2 also possesses a certain degree of corrosion resistance, resisting chemical solvents, acids, alkalis, greases, and other corrosive environments, making it suitable for corrosive environments.

[0035] The flexible protective component 2 can be glued, fixed by locking components, or hot-pressed onto the outer ring fixing component 1 and the inner ring fixing component 3 to ensure the reliability of the flexible protective component 2 and the outer ring fixing component 1 and the inner ring fixing component 3, or to achieve a detachable connection.

[0036] The installation steps for the wheel protection device for paint peeling of subway wheelsets provided in this application are as follows:

[0037] Step 1, Preparation Stage: Prepare protective devices in advance and ensure that the components will not be damaged during handling;

[0038] Step 2, Installation Stage: The operator attaches the semi-circular magnetic rings to the inner and outer end faces of the wheelset, ensuring a tight fit.

[0039] Step 3: Closing the rings: Align the two magnetic half-rings together and close them using magnetic force to form a complete protective structure.

[0040] Step 4, Paint Removal Stage: Start spraying the paint remover and observe and check for any leaks.

[0041] The wheel protection device for removing paint from subway wheelsets provided in this application can not only quickly adhere to the inner and outer rim surfaces of the wheelset, but also flexibly adapt to wheelsets of different sizes, effectively isolating splashed paint remover. It is highly efficient and convenient to operate, and does not easily damage the wheel surface. Compared to traditional tape protection, this device can be quickly installed and disassembled, with rapid adhesion, allowing operators to install it quickly and effortlessly, improving loading and unloading efficiency. Furthermore, this application can completely isolate splashed paint remover, protecting the paint film on the wheel surface from damage. It provides wide protective coverage, and the flexible protective component can freely extend and fold between the outer rim fixing component 1 and the inner rim fixing component 3, thus flexibly adapting to wheels of different sizes and models, making its application more widespread and cost-effective.

[0042] In one specific embodiment, the outer ring fastener 1 includes a plurality of outer ring magnetic rings 11, which are circumferentially distributed and magnetically fixed to the end face of the wheel outer ring. The outer ring magnetic rings 11 are preferably made of permanent magnets (e.g., neodymium iron boron magnets) or soft magnetic rings. The number of outer ring magnetic rings 11 can be adjusted according to the size of the wheel outer ring, typically set to 2 to 8, to ensure uniform adsorption force. The outer ring magnetic rings 11 are directly adsorbed onto the metal end face of the wheel outer ring by magnetic force, requiring no additional installation tools, and are easy to disassemble without damaging the surface of the wheel outer ring.

[0043] In addition, the inner ring fastener 3 includes multiple inner ring magnetic rings 31, which are circumferentially distributed and magnetically fixed to the end face of the inner ring of the wheel. The inner ring magnetic rings 31 can be made of the same material as the outer ring magnetic rings 11. The number of inner ring magnetic rings 31 is adjusted according to the size of the inner ring of the wheel, and the number of inner ring magnetic rings 31 is the same as the number of outer ring magnetic rings 11, so that the inner and outer ring magnetic rings 11 correspond and ensure uniform adsorption force. The inner ring magnetic rings 31 are easily removed by being magnetically attached to the metal end face of the inner ring of the wheel.

[0044] The dimensions of the outer magnetic ring 11 and the inner magnetic ring 31 can correspond to the dimensions of the wheel end face corresponding to the inner side of the wheel. The outer magnetic ring 11 and the inner magnetic ring 31 are flexibly connected by the flexible protective component 2, and the flexible protective component 2 completely covers the inner and outer end faces of the wheel, so that the splashed and penetrating paint remover is effectively isolated.

[0045] During installation, the outer ring fastener 1 is magnetically fixed to the outer ring of the wheel. Then, the flexible protective component 2 connects to another inner ring fastener 3 on the same wheel. The inner ring fastener 3 is magnetically fixed to the inner ring of the wheel. The outer ring fastener 1, inner ring fastener 3, and their connected flexible protective component 2 are installed in pairs sequentially. The outer ring fastener 1 and inner ring fastener 3 are designed as multi-segment circular ring structures, which can match wheels of different sizes and achieve complete coverage and isolation of the wheel surface with different diameters.

[0046] The flexible protective component 2 includes multiple flexible protective units 21 distributed circumferentially. Each flexible protective unit 21 is arc-shaped, and the outer ring of the flexible protective unit 21 is fixedly connected to an outer magnetic ring 11, while the inner ring of the flexible protective unit 21 is fixedly connected to an inner magnetic ring 31.

[0047] The flexible protective component 2 can be a ring-shaped curtain structure. Its outer edge is bonded and fixed to the inner side of the outer magnetic ring 11 by a high-strength adhesive (such as epoxy resin or polyurethane adhesive). The inner edge of the flexible protective component 2 is also fixed to the inner ring fixing component 3 by an adhesive method, forming a complete protective barrier.

[0048] In addition, the flexible protective component 2 can also be detachably connected to the outer ring fastener 1 and the inner ring fastener 3 by means of hook and loop fasteners (using the nylon hook side and the rough side to bond together) or clamps and other structures.

[0049] To achieve complete protection of the inner and outer ring areas of the wheel, a flexible protective component 2 is provided on the outer surface of the outer ring fixing component 1 and the inner ring fixing component 3. The outer edge of the flexible protective component 2 is flush with the outer edge of the outer ring fixing component 1, and the inner edge of the flexible protective component 2 is flush with the inner edge of the inner ring fixing component 3, thereby protecting the entire inner and outer ring areas of the wheel and increasing the protection range.

[0050] Furthermore, the flexible protective unit extends 10mm to 100mm beyond the end face of the outer magnetic ring 11 in the circumferential direction at both ends. Additionally, the flexible protective unit extends 10mm to 100mm beyond the end face of the inner magnetic ring 31 in the circumferential direction at both ends. This arrangement prevents the two end faces of the outer ring fixing member 1 and the inner ring fixing member 3 from completely fitting together. Even with gaps, the flexible protective unit extending beyond the end faces of the inner and outer ring fixing members 1 can still engage with adjacent flexible protective units, thereby adjusting the radial length of the flexible protective member 2 to completely cover the area of ​​the wheel surface requiring protection.

[0051] The flexible protective component 2 can be made of various materials, such as cotton, polyester fiber, or a blend of cotton and polyester fibers. It can also be a multi-layer composite structure, such as an outer layer of canvas or abrasion-resistant nylon cloth and an inner layer of elastic rubber, to improve durability and protective effect.

[0052] Optionally, the flexible protective component 2 is made of canvas, which has high strength and wear resistance, can withstand frequent friction, impact and heavy pressure, and can extend its service life.

[0053] Furthermore, to prevent wear or breakage of the inner ring fixing member 3 and the outer ring fixing member 1 due to hard collisions when magnetically adsorbed with the wheel, in a preferred embodiment, protective pads can be provided on the adsorption surfaces of the outer ring magnetic ring 11 and the inner ring magnetic ring 31. The protective pads can be made of soft materials such as rubber or silicone pads, and can be attached to the surface of the fixing members or fitted over the outside of the fixing members. When the inner ring fixing member 3 and the outer ring fixing member 1 are magnetically connected with the wheel, the protective pads act as a buffer and shock absorber, ensuring a secure fixation while preventing wear on the wheel surface.

[0054] The foregoing has provided a detailed description of the wheel protection device for preventing paint stripping from subway wheelsets. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of this application.

Claims

1. A wheel protection device for preventing paint peeling on subway wheelsets, characterized in that, include: Outer ring fastener (1), the outer ring fastener (1) is used to magnetically fix the outer ring end face of the wheel to the inner side of the wheel; Inner ring fastener (3) is disposed on the inner ring of the outer ring fastener (1), and the inner ring fastener (3) is used to magnetically fasten the inner ring end face of the wheel to the inner side of the wheel. A flexible protective element (2) is provided, wherein the outer ring of the flexible protective element (2) is connected to the outer ring fixing element (1), and the inner ring of the flexible protective element (2) is connected to the inner ring fixing element (3), and the flexible protective element (2) is used to cover at least the area between the inner and outer ring end faces of the wheel.

2. The wheel protection device for preventing paint peeling from subway wheelsets according to claim 1, characterized in that, The outer ring fastener (1) includes multiple outer ring magnetic rings (11), which are circumferentially distributed and magnetically fixed to the outer ring end face of the wheel.

3. The wheel protection device for paint peeling of subway wheelsets according to claim 2, characterized in that, The inner ring fastener (3) includes multiple inner ring magnetic rings (31), which are circumferentially distributed and magnetically fixed to the inner ring end face of the wheel.

4. The wheel protection device for paint peeling of subway wheelsets according to claim 3, characterized in that, The flexible protective component (2) includes a plurality of circumferentially distributed flexible protective units. The flexible protective units are arc-shaped, and the outer ring of the flexible protective unit is fixedly connected to the outer ring magnetic ring (11), and the inner ring of the flexible protective unit is fixedly connected to the inner ring magnetic ring (31).

5. The wheel protection device for paint peeling of subway wheelsets according to any one of claims 1 to 4, characterized in that, The flexible protective component (2) is attached and fixed to the outer ring fixing component (1) and the inner ring fixing component (3).

6. The wheel protection device for paint peeling of subway wheelsets according to claim 1, characterized in that, The outer edge of the flexible protective member (2) is flush with the outer edge of the outer ring fastener (1), and the inner edge of the flexible protective member (2) is flush with the inner edge of the inner ring fastener (3).

7. The wheel protection device for paint peeling of subway wheelsets according to claim 4, characterized in that, The flexible protective unit extends 10 mm to 100 mm beyond the end face of the outer magnetic ring (11) at both ends along the circumferential direction.

8. The wheel protection device for paint peeling of subway wheelsets according to claim 7, characterized in that, The flexible protective unit extends 10 mm to 100 mm beyond the end face of the inner magnetic ring (31) at both ends along the circumferential direction.

9. The wheel protection device for paint peeling of subway wheelsets according to claim 1, characterized in that, The flexible protective component (2) is a cotton flexible protective component, a polyester fiber flexible protective component, or a cotton and polyester fiber blended flexible protective component.