Amphibious vehicle guide wheel structure

Abstract

The utility model discloses a highway rail bus guide wheel structure belongs to highway rail bus technical field. A highway rail bus guide wheel structure, including drive wheel subassembly and floating wheel subassembly, drive wheel subassembly includes first skeleton, be equipped with a pair of drive motor on the first skeleton, and the output of a pair of drive motor is installed with drive guide wheel respectively, the utility model discloses a highway rail bus guide wheel structure, through setting up floating wheel subassembly, and the connecting frame between second skeleton adopts the pivot sleeve connection with floating hinge axle, makes floating guide wheel to be able to according to the actual fluctuation and change of track and carry out the flexible floating adjustment, when meeting the local protrusion or the depression of track, and floating guide wheel can automatically adapt to track shape, keep with the good contact of track, effectively avoided the wheel suspension problem, thereby significantly improved the adhesion between vehicle and track, strengthened the guiding performance and the driving stability of vehicle, greatly reduced the derailment risk.

Description

Technical Field

[0001] This utility model belongs to the technical field of dual-purpose road and rail vehicles, and in particular relates to a guide wheel structure for dual-purpose road and rail vehicles. Background Technology

[0002] In the transportation sector, dual-purpose road-rail vehicles, as a special type of vehicle capable of both road and rail travel, play a vital role in numerous scenarios such as railway maintenance and repair. They can flexibly switch between driving modes, effectively improving transportation efficiency, reducing transportation costs, and minimizing the transition between different modes of transport. As a key component of dual-purpose road-rail vehicles, the performance of the guide wheel structure directly affects the vehicle's stability and safety on the railway track. The main function of the guide wheel is to guide the vehicle to travel accurately along the track during railway travel, preventing derailment, while also bearing part of the vehicle's weight and ensuring good contact between the vehicle and the track.

[0003] However, existing guide wheel structures for dual-purpose road-rail vehicles have certain limitations. Some dual-purpose road-rail vehicles use a fixed front and rear guide wheel design, meaning the guide wheels remain in a fixed position during vehicle operation and lack floating adjustment capabilities. While this design can meet operating requirements under ideal road conditions and perfectly flat tracks, in practical applications, railway tracks are not perfectly flat and often have irregularities. Because the guide wheels cannot adaptively adjust to the actual track conditions, when encountering local bumps or depressions in the track, some wheels are prone to becoming suspended in the air. This reduces the contact area between the vehicle and the track, decreases adhesion, and consequently affects the vehicle's guiding performance and driving stability, increasing the risk of derailment. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the prior art by providing a guide wheel structure for a dual-purpose road-rail vehicle.

[0005] To achieve the above objectives, the utility model adopts the following technical solution: a guide wheel structure for a dual-purpose road-rail vehicle, comprising a drive wheel assembly and a floating wheel assembly. The drive wheel assembly includes a first frame, on which a pair of drive motors are mounted, and drive guide wheels are respectively mounted on the output ends of the pair of drive motors. A pair of first support cylinders are mounted on the first frame. The floating wheel assembly includes a second frame, on which a connecting frame is mounted, and a connector is installed between the connecting frame and the second frame. Floating guide wheels are respectively mounted at both ends of the connecting frame. A pair of second support cylinders are mounted on the second frame, and a pair of locking cylinders that cooperate with the connecting frame are provided inside the second frame.

[0006] By adopting the above technical solution, the drive wheel assembly and the floating wheel assembly cooperate with each other. The drive guide wheel provides driving power, and the floating guide wheel can float and adjust according to the track conditions. The first support cylinder and the second support cylinder provide stable support for the entire structure, and the locking cylinder can lock the connecting frame when needed, ensuring that the vehicle can maintain good guiding performance and stability under different driving conditions. This effectively solves the problem that the guide wheel cannot adapt to track changes in the prior art.

[0007] Optionally, the first frame includes a trapezoidal crossbeam frame, on which a pair of first ear plate seats are provided, a first connecting rod is provided between the pair of first ear plate seats, and connecting seats for connecting the first support cylinder are respectively provided on the outer side of the pair of first ear plate seats.

[0008] By adopting the above technical solution, the trapezoidal crossbeam frame structure is stable and can withstand large loads. At the same time, it provides an installation position for the drive guide wheel. The first connecting rod enhances the structural stability between the first ear plate seats, and the connecting seat facilitates the installation of the first support cylinder, enabling the first support cylinder to function accurately and stably and provide reliable support for the drive wheel assembly.

[0009] Optionally, the second frame includes a support beam with a pair of oppositely arranged fixing plates on it. Second ear plate seats are respectively installed at both ends of the support beam. Fixing seats for installing the second support cylinder are installed on the second ear plate seats. A second connecting rod is installed between the pair of second ear plate seats.

[0010] By adopting the above technical solution, the supporting beam serves as the main structure of the second frame, providing an installation platform for other components. The design of the fixing plate facilitates the connection and installation of the connecting frame. At the same time, the design of the second ear plate seat facilitates the installation of the second support cylinder and the second connecting rod.

[0011] Optionally, the support beam has a mounting cavity, a pair of locking cylinders are installed in the mounting cavity, and the mounting cavity has heat dissipation holes.

[0012] By adopting the above technical solution, the mounting cavity provides a mounting position for the locking cylinder, and the opening of its heat dissipation holes provides a heat dissipation channel for the locking cylinder.

[0013] Optionally, the connecting frame includes a rotating shaft, and a rotating shaft seat connected to the second frame is mounted on the outer periphery of the rotating shaft.

[0014] By adopting the above technical solution, the rotating shaft, as the core component of the connecting frame, provides an installation position for the floating guide wheel, thereby allowing the floating guide wheel to rotate on the rotating shaft.

[0015] Optionally, a locking seat that cooperates with the locking cylinder is installed on the outer periphery of the rotating shaft seat.

[0016] By adopting the above technical solution, the locking seat and the locking cylinder cooperate with each other. When it is necessary to fix the position of the connecting frame, the telescopic end of the locking cylinder extends and abuts against the locking seat, locking the connecting frame in a specific position to prevent the floating guide wheel from shaking randomly and to ensure the stability and safety of the vehicle during driving. When it is necessary to adjust the floating position, the locking cylinder retracts, releases the locking seat, and allows the connecting frame to swing freely left and right.

[0017] Optionally, the connector includes a rotating sleeve mounted on the second frame and the connecting frame, and the rotating sleeve is provided with a floating hinge.

[0018] By adopting the above technical solution, the rotating bushing provides installation protection for the floating hinge shaft. As a connecting component connecting the second frame and the connecting frame, the floating hinge shaft allows the connecting frame to swing within a certain range, while ensuring the connection strength and stability between the connecting frame and the second frame, enabling the floating guide wheel to work flexibly and reliably.

[0019] Optionally, each of the pair of floating guide wheels is provided with a disc brake.

[0020] By adopting the above technical solutions, the disc brake design enables the floating guide wheel to be braked when the vehicle needs to brake, shortening the braking distance, improving the braking safety and reliability of the vehicle, and further ensuring the safety of the vehicle during railway operation.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. The guide wheel structure of this utility model for a dual-purpose road-rail vehicle, by setting up a floating wheel assembly, connects its connecting frame and the second frame with a rotating bushing with a floating hinge shaft. This allows the floating guide wheel to flexibly adjust itself according to the actual undulations and changes of the track. When encountering local protrusions or depressions in the track, the floating guide wheel can automatically adapt to the shape of the track and maintain good contact with the track, effectively avoiding the problem of the wheel being suspended in the air. This significantly improves the adhesion between the vehicle and the track, enhances the vehicle's guiding performance and driving stability, greatly reduces the risk of derailment, and provides strong protection for driving safety.

[0023] 2. When the vehicle needs to travel stably on a specific track section or to perform operations, the locking cylinder extends and engages with the locking seat to securely lock the connecting frame in a specific position, preventing the floating guide wheel from swaying randomly and ensuring the stability of the vehicle's travel and the accuracy of its guidance. When encountering complex and changing track conditions, the locking cylinder retracts, releasing the locking seat and allowing the floating guide wheel to float freely and make adaptive adjustments according to the track conditions. This improves the vehicle's adaptability to different track environments. This flexible switching function meets the diverse needs of the dual-purpose road-rail vehicle in different driving scenarios.

[0024] 3. The locking cylinder is designed in the mounting cavity inside the support beam, which saves space and provides a certain degree of protection for the locking cylinder. The heat dissipation holes on the mounting cavity also help dissipate heat from the locking cylinder, ensuring its normal operation.

[0025] 4. Disc brakes are installed on a pair of floating guide wheels. When braking is required during vehicle operation, the disc brakes can apply braking force to the floating guide wheels, shorten the braking distance, and improve braking safety and reliability. Compared with traditional braking methods, disc brakes can better adapt to the braking needs of dual-purpose road and rail vehicles under different driving speeds and load conditions. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the drive wheel assembly of this utility model;

[0027] Figure 2 This is a schematic diagram of the overall structure of the floating wheel assembly of this utility model;

[0028] Figure 3 This is a schematic diagram of the cross-sectional structure of the supporting beam of this utility model.

[0029] In the diagram: 1. Drive wheel assembly; 2. Floating wheel assembly; 3. First frame; 31. Trapezoidal crossbeam frame; 32. First ear plate seat; 33. First connecting rod; 34. Connecting seat; 4. Drive motor; 5. Drive guide wheel; 6. First support cylinder; 7. Second frame; 71. Support crossbeam; 7101. Mounting cavity; 7102. Heat dissipation hole; 72. Fixing plate; 73. Second ear plate seat; 74. Fixing seat; 75. Second connecting rod; 8. Connecting frame; 81. Rotating shaft; 82. Rotating shaft seat; 83. Locking seat; 9. Connecting piece; 91. Rotating shaft sleeve; 92. Floating hinge shaft; 10. Floating guide wheel; 1001. Disc brake; 11. Second support cylinder; 12. Locking cylinder. Detailed Implementation

[0030] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] In the description of this utility model, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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.

[0032] like Figure 1 As shown in Figure 3, the specific solution of the embodiment is as follows: A guide wheel structure for a dual-purpose road and rail vehicle includes a drive wheel assembly 1 and a floating wheel assembly 2. The drive wheel assembly 1 includes a first frame 3. The first frame 3 includes a trapezoidal crossbeam frame 31. A pair of first ear plate seats 32 are provided on the trapezoidal crossbeam frame 31. A first connecting rod 33 is provided between the pair of first ear plate seats 32. Connecting seats 34 for connecting the first support cylinder 6 are respectively provided on the outer side of the pair of first ear plate seats 32.

[0033] The trapezoidal design gives its crossbeam frame high structural strength and stability. The trapezoidal shape can disperse various stresses generated during vehicle operation. At the same time, it can also bear the weight and force of components such as drive motor 4, drive guide wheel 5, and first support cylinder 6. It also provides a stable mounting position for drive motor 4, ensuring that drive motor 4 will not be displaced due to vibration or force during operation. It ensures that drive guide wheel 5 can accurately receive the power transmitted by drive motor 4 and achieve stable driving. The design of the first ear plate seat 32 and the first connection enhances the overall structural integrity. The cooperation between the connecting seat 34 and the first ear plate seat 32 provides a mounting position for the telescopic end of the first support cylinder 6.

[0034] The first frame 3 is equipped with a pair of drive motors 4, and drive guide wheels 5 are respectively installed at the output ends of the pair of drive motors 4. The drive motors 4 provide driving force to the drive guide wheels 5, thereby driving the road-rail vehicle to travel on the track on the road. The first frame 3 is equipped with a pair of first support cylinders 6. The first support cylinders 6 are installed on the first frame 3, and the other end is installed on the tamping machine. In the working state, the first support cylinders 6 are in a vertical state. The vertical arrangement of the first support cylinders 6 can more effectively distribute the weight of the vehicle evenly on the track, avoiding the problem of local stress concentration caused by uneven force direction when the arrangement is tilted. This design can reduce the load on the support cylinders, reduce the risk of cylinder damage, and extend their service life. At the same time, the vertical arrangement of the support cylinders can provide more stable support force, so that the vehicle remains stable during operation, improving the accuracy and efficiency of the operation.

[0035] The floating wheel assembly 2 includes a second frame 7, the second frame 7 includes a support beam 71, the support beam 71 is provided with a pair of oppositely arranged fixing plates 72, the two ends of the support beam 71 are respectively installed with second ear plate seats 73, the second ear plate seats 73 are installed with fixing seats 74 for the second support cylinder 11, and a second connecting rod 75 is installed between the pair of second ear plate seats 73.

[0036] The support beam 71 provides the main support structure for the entire floating wheel assembly 2, and can bear the weight and force of components such as the floating guide wheel 10, the connecting frame 8, and the second support cylinder 11. At the same time, it must also cope with various dynamic loads caused by uneven track during vehicle operation. The fixing plate 72 provides a connection position for the connecting frame 8, while the cooperation between the second ear plate seat 73 and the fixing seat 74 provides an installation position for the support cylinder. The second connecting rod can enhance the strength between the second ear plate seats 73.

[0037] The second frame 7 is provided with a connecting frame 8, which includes a rotating shaft 81. A rotating shaft seat 82 connected to the second frame 7 is installed on the outer periphery of the rotating shaft 81. The rotating shaft seat 82 is installed between a pair of fixed plates 72. With the cooperation of the connecting piece 9, the rotating shaft 81 can be connected to the second frame 7.

[0038] A connector 9 is installed between the connecting frame 8 and the second frame 7. The connector 9 includes a rotating bushing 91 installed on the second frame 7 and the connecting frame 8. A floating hinge 92 is provided inside the rotating bushing 91. The rotating bushing 91 provides installation protection for the floating hinge 92. The rotating bushing 91 can prevent dust, debris, etc. from entering the interior of the floating hinge 92 and affecting its normal rotation. At the same time, it can also play a certain role in buffering and shock absorption, reducing the vibration and noise generated during the rotation of the connecting frame 8. The design of the floating hinge 92 allows the connecting frame 8 to float and rotate within a certain range, so that the floating guide wheel 10 can flexibly adapt to changes in the track. At the same time, it can ensure the connection strength and stability between the connecting frame 8 and the second frame 7, and ensure that the floating guide wheel 10 can work normally.

[0039] The connecting frame 8 is provided with floating guide wheels 10 at both ends. The floating guide wheels 10 are connected to the rotating shaft 81. A disc brake 1001 is provided on each pair of floating guide wheels 10. When the vehicle needs to brake, the disc brake 1001 can quickly and effectively apply braking force to the floating guide wheels 10, shorten the braking distance, and improve braking safety and reliability.

[0040] A pair of second support cylinders 11 are installed on the second frame 7, with the other end of the second support cylinders 11 mounted on the tamping machine. In operation, the second support cylinders 11 are in a vertical position, similar to the first support cylinder 6. The vertical arrangement of the second support cylinders 11 can more effectively distribute the vehicle weight, reduce its own load, and provide stable support force, working together with the first support cylinder 6 to ensure the stability of the vehicle during operation.

[0041] The second frame 7 is provided with a pair of locking cylinders 12 that cooperate with the connecting frame 8. The supporting beam 71 is provided with a mounting cavity, and the pair of locking cylinders 12 are installed in the mounting cavity. The mounting cavity is provided with heat dissipation holes 7101 and 7102. A locking seat 83 that cooperates with the locking cylinders 12 is installed on the outer periphery of the rotating shaft seat 82.

[0042] The heat dissipation holes 7101 and 7102 on the mounting cavity help to dissipate the heat generated by the locking cylinder 12 during operation, so as to avoid affecting its performance and service life due to excessive temperature. The locking cylinder 12 cooperates with the locking seat 83 to realize the locking and unlocking functions of the connecting frame 8, meet the requirements of the floating guide wheel 10 in different driving scenarios, and improve the vehicle's adaptability to different track environments.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A guide wheel structure for a dual-purpose road-rail vehicle, characterized in that, The system includes a drive wheel assembly and a floating wheel assembly. The drive wheel assembly includes a first frame with a pair of drive motors mounted on it. Drive guide wheels are respectively mounted on the output ends of the pair of drive motors. A pair of first support cylinders are mounted on the first frame. The floating wheel assembly includes a second frame with a connecting frame mounted on it. A connector is installed between the connecting frame and the second frame. Floating guide wheels are respectively mounted at both ends of the connecting frame. A pair of second support cylinders are mounted on the second frame. A pair of locking cylinders that cooperate with the connecting frame are located inside the second frame.

2. The guide wheel structure for a dual-purpose road-rail vehicle according to claim 1, characterized in that: The first frame includes a trapezoidal crossbeam frame, on which a pair of first ear plate seats are provided, a first connecting rod is provided between the pair of first ear plate seats, and connecting seats for connecting the first support cylinder are respectively provided on the outer side of the pair of first ear plate seats.

3. The guide wheel structure for a dual-purpose road-rail vehicle according to claim 1, characterized in that: The second frame includes a support beam with a pair of oppositely arranged fixing plates on it. Second ear plate seats are respectively installed at both ends of the support beam. Fixing seats for installing the second support cylinder are installed on the second ear plate seats. A second connecting rod is installed between the pair of second ear plate seats.

4. The guide wheel structure for a dual-purpose road-rail vehicle according to claim 3, characterized in that: The supporting crossbeam has an installation cavity, and a pair of locking cylinders are installed in the installation cavity. The installation cavity has heat dissipation holes.

5. The guide wheel structure for a dual-purpose road-rail vehicle according to claim 1, characterized in that: The connecting frame includes a rotating shaft, and a rotating shaft seat connected to the second frame is mounted on the outer periphery of the rotating shaft.

6. The guide wheel structure for a dual-purpose road-rail vehicle according to claim 5, characterized in that: A locking seat that works in conjunction with the locking cylinder is installed on the outer periphery of the rotating shaft seat.

7. The guide wheel structure for a dual-purpose road-rail vehicle according to claim 1, characterized in that: The connector includes a rotating sleeve installed on the second frame and the connecting frame, and a floating hinge is provided inside the rotating sleeve.

8. The guide wheel structure for a dual-purpose road-rail vehicle according to claim 1, characterized in that: Each of the two floating guide wheels is equipped with a disc brake.

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