Independent wheel and mounting structure thereof

Abstract

The utility model discloses an independent wheel and a mounting structure thereof, the independent wheel comprises a wheel and an axle, two ends of the axle are respectively and coaxially connected with a set of bearing mechanism, the axle can rotate in the bearing mechanism, and the bearing mechanism comprises a bearing coaxially connected with the axle and a limiting structure coaxially arranged on the axle and used for limiting the axial movement of the bearing. The bearing is sleeved with an elastic supporting part, the elastic supporting part is perpendicular to the axle, and a supporting fixing plate used for being fixed to the bogie is fixed to the top of the elastic supporting part. The two ends of the axle are coaxially connected with the bearing mechanisms respectively, and the axle can rotate in the bearing mechanisms. As a common and effective mechanical transmission part, the bearing can greatly reduce the friction force when the axle rotates, so that the axle can smoothly and flexibly rotate, the independent wheel can stably and efficiently run in the walking process, the energy loss is reduced, and the running efficiency of the vehicle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation systems, in particular to an independent wheel and a mounting structure thereof. Background Art

[0002] Currently, my country's multimodal transport sector is relatively underdeveloped, with a long-standing reliance on road transport. Road, rail, and water transport face significant challenges, including poor coordination and integration, a poor market environment, misaligned regulations and standards, and slow adoption of advanced technologies. In the freight sector, while containers are widely used in ports, logistics, and coal operations, transportation often relies on large numbers of trucks due to the long distances between railway stations and the complex surrounding environments in some areas. This leads to frequent congestion, pollution, inefficiency, and safety hazards. Against this backdrop, aerial rail freight systems, which effectively circumvent these issues, are attracting market attention and hold promising prospects.

[0003] Existing suspended monorail systems, whether for passenger or freight transport, typically utilize a lower open track beam. Their running systems are equipped with solid rubber wheels or pneumatic tires. This design provides excellent vibration damping and a comfortable ride, structurally ensuring the stability and reliability of the aerial rail system during operation and laying the foundation for smooth cargo transportation.

[0004] Existing suspended monorail systems for passenger and freight transport generally utilize a lower open track beam. Their running systems often utilize solid rubber wheels or pneumatic tires. Rubber wheels are subject to significant wear, resulting in a short service life. This high wear and short lifespan of rubber wheels leads to high lifetime operation and maintenance costs. Furthermore, given the market demands for high-volume, high-frequency, long-distance, and steep slopes for freight monorail systems, the high maintenance costs associated with using rubber wheels would be difficult to gain market acceptance. Lower open track beams have poor vertical rigidity, making them more expensive for longer routes. In contrast, fully enclosed box beams offer greater economic benefits. Existing running systems utilizing rubber wheels, for example, utilize lower open track beams, which are indirectly impacted by the vertical rigidity and cost of the track beams. In summary, existing non-fully independent wheels (as found in conventional suspended monorail running systems) present numerous challenges in terms of wear, lifespan, operation and maintenance costs, and the associated track beam costs, hindering market adoption and cost control. Utility Model Content

[0005] The purpose of the present invention is to solve the shortcomings of the above-mentioned background technology and to provide an independent wheel made of metal and its mounting structure with the bogie. The bogie can run on the track through the independent wheel, and the four wheels can be completely independent. The suspension device of each wheel ensures the stability of the wheel and realizes the positioning and buffering of the wheel, thereby reducing the wear of the wheel, extending the life of the wheel, and reducing the operation and maintenance costs.

[0006] To achieve this purpose, the independent wheel designed in the present invention includes a wheel and an axle, and the two ends of the axle are coaxially connected to a set of bearing mechanisms, and the axle can rotate in the bearing mechanism. The bearing mechanism includes a bearing coaxially connected to the axle and a limiting structure coaxially arranged on the axle for limiting the axial movement of the bearing. An elastic support part is sleeved and connected on the bearing, and the elastic support part is arranged perpendicular to the axle. The top of the elastic support part is fixed with a support fixing plate for fixing to the bogie.

[0007] Furthermore, the limiting structure includes a rear retaining ring and an end cover coaxially connected to the axle and used to limit the movement of the bearing along its axial direction.

[0008] Furthermore, a shaft cylinder is sleeved on the bearing, one end of the shaft cylinder is provided with a bending portion that cooperates with the side of the bearing close to the wheel and is axially positioned with the bearing, and the other end of the shaft cylinder is axially tightly connected to the axle box cover.

[0009] Furthermore, at least one elastic support portion is fixed to the front and rear sides of the shaft cylinder respectively.

[0010] Furthermore, the elastic support portion includes a guide column structure fixedly connected to the outer ring of the shaft cylinder and arranged in a direction perpendicular to the axle. The top of the guide column structure is coaxially fixedly connected to the support fixing plate, and the bottom of the guide column structure is fixedly connected to the bottom limit plate. An elastic connecting piece is coaxially arranged on the guide column structure, which is connected between the support fixing plate and the bottom limit plate. The support fixing plate can move relative to the bottom limit plate along the axial direction of the guide column structure.

[0011] Furthermore, the guide column structure includes a guide column shaft box, which includes the bottom limit plate and a guide column sleeve vertically fixedly connected to the bottom limit plate, a guide column is coaxially arranged in the guide column sleeve, and the top of the guide column is fixedly connected to the support fixing plate.

[0012] Furthermore, an elastic support ring is coaxially sleeved on the guide column sleeve, and the elastic connecting member is connected between the elastic support ring and the support fixing plate.

[0013] Furthermore, a metal support ring is coaxially sleeved on the guide column sleeve, and the elastic connecting member is connected between the metal support ring and the supporting fixing plate.

[0014] Furthermore, an independent wheel installation structure includes a bogie, at least one pair of independent wheels is fixed on the front and rear sides of the bogie respectively, each pair of independent wheels includes two independent wheels symmetrically fixed to the bottom of the left and right sides of the bogie through the supporting fixing plate, and the bogie is provided with an avoidance structure for avoiding the top of the independent wheel.

[0015] Furthermore, the avoidance structure includes an avoidance groove, an avoidance hole and a shaped avoidance structure.

[0016] The beneficial effects of the present invention are as follows: A bearing mechanism is coaxially connected at each end of the axle, and the axle can rotate within the bearing mechanism. Bearings, as a common and effective mechanical transmission component, can significantly reduce friction during axle rotation, allowing the axle to rotate smoothly and flexibly, ensuring stable and efficient operation of the independent wheels during travel, reducing energy loss, and improving vehicle efficiency. A limiting structure in the bearing mechanism is coaxially arranged on the axle to limit axial movement of the bearing. This design is critical, as it accurately determines the position of the bearing on the axle, preventing axial movement of the bearing due to various external forces (such as vibration and impact) during vehicle operation. This ensures the stability of the entire bearing mechanism, further maintaining the stability and reliability of axle rotation, and avoiding problems such as abnormal wheel wear, poor rotation, or even failure caused by bearing displacement. An elastic support portion is sleeved and connected to the bearing, arranged perpendicular to the axle. During vehicle travel, various uneven road surfaces or tracks are inevitably encountered, and the elastic support portion can play an important role in buffering these situations. When the wheel is impacted by the ground or track, the elastic support deforms elastically, absorbing and dissipating the force. This effectively mitigates the impact on the wheel, axle, and the entire vehicle structure, preventing component damage from frequent, intense impacts and extending component life. The elastic deformation of the elastic support cushions impact forces, combined with the bearing mechanism's guaranteed axle rotational stability, allowing the entire independent wheel to operate more smoothly in various road and track conditions. This combined vibration damping effect not only reduces vehicle jolting during driving but also reduces noise generated by vibration. A support plate is secured to the top of the elastic support for securing the wheel to the bogie. This design makes connecting the independent wheel to the bogie more convenient and straightforward. During vehicle assembly, the support plate allows for easy and secure attachment of the independent wheel to the bogie, ensuring a reliable connection and improving assembly efficiency. The support plate tightly connects the independent wheel to the bogie, forming a stable, integrated structure. During vehicle operation, this stable connection ensures the coordinated movement between the independent wheel and the vehicle body, allowing the rotation of the wheel to be accurately converted into forward or backward movement of the vehicle. It also effectively prevents safety hazards such as loose wheels and falling off due to loose connections, thereby ensuring the overall performance and operational safety of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the independent wheel in the utility model;

[0018] Figure 2 This is a front view of the independent wheel in the utility model;

[0019] Figure 3for Figure 2 Middle AA section view;

[0020] Figure 4 This is a three-dimensional diagram of the installation structure of the independent wheel in the utility model;

[0021] Among them, 1 is the wheel, 2 is the axle, 3 is the bearing, 4 is the support and fixing plate, 5 is the rear retaining ring, 6 is the end cover, 7 is the axle box cover, 8 is the bottom limit plate, 9 is the elastic connector, 10 is the guide column axle box, 11 is the guide column sleeve, 12 is the guide column, 13 is the elastic support ring, 14 is the metal support ring, 15 is the bogie, 16 is the axle cylinder, and 17 is the bending part. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, rather than all the embodiments. In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0023] like Figure 1 —3 shows, in certain embodiments, the independent wheel designed by the present invention includes a wheel 1 and an axle 2, and a set of bearing mechanisms are coaxially connected at both ends of the axle 2. The axle 2 can rotate in the bearing mechanism, and the bearing mechanism includes a bearing 3 coaxially connected to the axle 2 and a limiting structure coaxially arranged on the axle 2 for limiting the axial movement of the bearing 3. An elastic support part is sleeved and connected on the bearing 3, and the elastic support part is arranged perpendicular to the axle 2. A support fixing plate 4 for fixing to the bogie 15 is fixed on the top of the elastic support part.

[0024] Example 1

[0025] Based on certain embodiments, the limiting structure is optimized and designed: the limiting structure includes a rear retaining ring 5 and an end cover 6 coaxially connected to the axle 2 and used to limit the movement of the bearing 3 along its axial direction.

[0026] Example 2

[0027] Based on certain embodiments or the first embodiment, the arrangement of the elastic support portion is further optimized: a shaft cylinder 16 is sleeved over the bearing 3. A bent portion 17 is provided at one end of the shaft cylinder 16, which engages with the side of the bearing 3 closest to the wheel and axially positions the bearing 3. The other end of the shaft cylinder 16 is tightly axially connected to the axle box cover 7. An elastic support portion is fixed to each of the front and rear sides of the shaft cylinder 16.

[0028] Example 3

[0029] Based on certain embodiments or embodiment one or embodiment two, the structure of the elastic support portion is further optimized: the elastic support portion includes a guide column structure fixedly connected to the outer ring of the shaft cylinder 16 and arranged in a direction perpendicular to the axle 2. The top of the guide column structure is coaxially fixedly connected to the support fixing plate 4, and the bottom of the guide column structure is fixedly connected to the bottom limit plate 8. The guide column structure is coaxially provided with an elastic connector 9, which is connected between the support fixing plate 4 and the bottom limit plate 8. The support fixing plate 4 can move along the axial direction of the guide column structure relative to the bottom limit plate 8. Specifically, the guide column structure includes a guide column shaft box 10, which includes a bottom limit plate 8 and a guide column sleeve 11 vertically fixedly connected to the bottom limit plate 8. A guide column 12 is coaxially arranged in the guide column sleeve 11, and the top of the guide column 12 is fixedly connected to the support fixing plate 4. An elastic support ring 13 and a metal support ring 14 are coaxially sleeved on the guide column sleeve 11. The elastic connector 9 is connected between the metal support ring 14 and the support fixing plate 4.

[0030] Based on some of the above embodiments or embodiment 1 or embodiment 2 or embodiment 3, a mounting structure of an independent wheel is designed, such as Figure 4 As shown, it includes a bogie 15, and at least one pair of independent wheels is fixed on the front and rear sides of the bogie 15 respectively. Each pair of independent wheels includes two independent wheels symmetrically fixed to the bottom of the left and right sides of the bogie 15 through a supporting fixing plate 4. The bogie 15 is provided with an avoidance structure for avoiding the top of the independent wheel, and the avoidance structure is an avoidance hole opened on the top of the bogie 15.

[0031] In summary, in the present invention, a set of bearing mechanisms are coaxially connected at both ends of the axle, and the axle can rotate within the bearing mechanism. Bearings, as a common and effective mechanical transmission component, can greatly reduce the friction force during the rotation of the axle, allowing the axle to rotate smoothly and flexibly, ensuring that the independent wheels can operate smoothly and efficiently during travel, reducing energy loss and improving the operating efficiency of the vehicle. The limiting structure in the bearing mechanism is coaxially arranged on the axle to limit the axial movement of the bearing. This design is very critical. It can accurately determine the position of the bearing on the axle and prevent the bearing from axially moving due to various external forces (such as vibration, impact, etc.) during the operation of the vehicle, thereby ensuring the stability of the entire bearing mechanism, further maintaining the stability and reliability of the axle rotation, and avoiding problems such as abnormal wheel wear, poor rotation, or even failure caused by bearing displacement. The bearing is sleeved and connected with an elastic support portion arranged perpendicular to the axle. During the travel of the vehicle, it is inevitable to encounter various uneven road surfaces or track conditions. At this time, the elastic support portion can play an important buffering role. When the wheel is impacted by the ground or track, the elastic support deforms elastically, absorbing and dissipating the force. This effectively mitigates the impact on the wheel, axle, and the entire vehicle structure, preventing component damage from frequent, intense impacts and extending component life. The elastic deformation of the elastic support cushions impact forces, combined with the bearing mechanism's guaranteed axle rotational stability, allowing the entire independent wheel to operate more smoothly in various road and track conditions. This combined vibration damping effect not only reduces vehicle jolting during driving but also reduces noise generated by vibration. A support plate is secured to the top of the elastic support for securing the wheel to the bogie. This design makes connecting the independent wheel to the bogie more convenient and straightforward. During vehicle assembly, the support plate allows for easy and secure attachment of the independent wheel to the bogie, ensuring a reliable connection and improving assembly efficiency. The support plate tightly connects the independent wheel to the bogie, forming a stable, integrated structure. During vehicle operation, this stable connection ensures the coordinated movement between the independent wheel and the vehicle body, allowing the rotation of the wheel to be accurately converted into forward or backward movement of the vehicle. It also effectively prevents safety hazards such as loose wheels and falling off due to loose connections, thereby ensuring the overall performance and operational safety of the vehicle.

[0032] Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments and is susceptible to numerous variations. Any simple modifications, equivalent variations, and modifications to the above embodiments based on the technical essence of the present invention shall be deemed to fall within the scope of protection of the present invention.

Claims

1. An independent wheel, comprising a wheel (1) and an axle (2), characterized in that: A set of bearing mechanisms are coaxially connected to both ends of the axle (2), and the axle (2) can rotate in the bearing mechanism. The bearing mechanism includes a bearing (3) coaxially connected to the axle (2) and a limiting structure coaxially arranged on the axle (2) for limiting the axial movement of the bearing (3). An elastic support portion is sleeved and connected to the bearing (3), and the elastic support portion is arranged perpendicular to the axle (2). A support fixing plate (4) for fixing to the bogie (15) is fixed on the top of the elastic support portion.

2. The independent wheel according to claim 1, characterized in that: The limiting structure comprises a rear retaining ring (5) and an end cover (6) coaxially connected to the axle (2) and used to limit the movement of the bearing (3) along its axial direction.

3. The independent wheel according to claim 2, characterized in that: A shaft cylinder (16) is sleeved on the bearing (3), one end of the shaft cylinder (16) is provided with a bent portion (17) that cooperates with a side of the bearing (3) close to the wheel and is axially positioned with the bearing (3), and the other end of the shaft cylinder (16) is axially tightly connected to an axle box cover (7).

4. The independent wheel according to claim 3, characterized in that: At least one elastic support portion is fixed to the front and rear sides of the shaft cylinder (16), respectively.

5. The independent wheel according to claim 3 or 4, characterized in that: The elastic support portion includes a guide column structure fixedly connected to the outer ring of the shaft cylinder (16) and arranged in a direction perpendicular to the axle (2); the top of the guide column structure is coaxially fixedly connected to the support fixing plate (4); the bottom of the guide column structure is fixedly connected to the bottom limit plate (8); an elastic connecting member (9) is coaxially arranged on the guide column structure and is connected between the support fixing plate (4) and the bottom limit plate (8); the support fixing plate (4) can move relative to the bottom limit plate (8) along the axial direction of the guide column structure.

6. The independent wheel according to claim 5, characterized in that: The guide column structure includes a guide column shaft box (10), which includes the bottom limit plate (8) and a guide column sleeve (11) vertically fixedly connected to the bottom limit plate (8), a guide column (12) is coaxially arranged in the guide column sleeve (11), and the top of the guide column (12) is fixedly connected to the support fixing plate (4).

7. The independent wheel according to claim 6, characterized in that: An elastic support ring (13) is coaxially sleeved on the guide column sleeve (11), and the elastic connecting member (9) is connected between the elastic support ring (13) and the supporting fixing plate (4).

8. The independent wheel according to claim 7, characterized in that: A metal support ring (14) is coaxially sleeved on the guide column sleeve (11), and the elastic connecting member (9) is connected between the metal support ring (14) and the supporting fixing plate (4).

9. An independent wheel mounting structure according to any one of claims 1 to 8, comprising a bogie (15), characterized in that: At least one pair of independent wheels is fixed to the front and rear sides of the bogie (15), and each pair of independent wheels includes two independent wheels symmetrically fixed to the left and right bottom sides of the bogie (15) through the supporting fixing plate (4). The bogie (15) is provided with an avoidance structure for avoiding the top of the independent wheels.

10. The independent wheel mounting structure according to claim 9, characterized in that: The avoidance structure includes an avoidance groove, an avoidance hole and a shaped avoidance structure.

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