Guiding mechanism of highway-railway dual-purpose tractor

Abstract

The invention discloses a guide mechanism of a highway-railway dual-purpose tractor in the field of highway-railway dual-purpose tractors, which comprises a swing type bogie, a guide connecting frame is arranged below the swing type bogie, and electric drive axles are connected to two sides of the lower part of the guide connecting frame through bolts; a driving motor used for driving and a transmission box body used for transmission are installed on the electric drive axle, and an output shaft of the transmission box body is fixedly connected with a swing type bogie. Through cooperation of the guide connecting frame and the cross-shaped hinge shaft, it is ensured that the rail guide wheel can move in a manner of being attached to the rail, impact and vibration caused by uneven rail can be effectively absorbed, the influence of vibration on a vehicle and the rail guide wheel is reduced, the stability and comfort of vehicle running are improved, meanwhile, the service life of vehicle parts is prolonged, and the cost is reduced. And the antiskid lines and the wheel flanges on the outer circular surface of the wheel body of the guide wheel can provide friction force and operation guidance which are attached to a rail, so that more stable operation is ensured.

Description

Technical Field

[0001] This invention relates to the field of dual-purpose road-rail tractors, specifically a guide mechanism for dual-purpose road-rail tractors. Background Technology

[0002] With the continuous development of the transportation industry, dual-purpose road-rail tractors, capable of operating on both highways and railways, effectively improve transportation efficiency and flexibility, and are widely used in logistics, emergency rescue, and other fields. However, existing dual-purpose road-rail tractors suffer from insufficient guidance accuracy when traveling on railways. Due to the characteristics of railway track structures, traditional guidance mechanisms are difficult to adjust adaptively, leading to driving deviations that affect safety and efficiency. Furthermore, traditional guidance mechanisms cannot effectively buffer impacts from the track, reducing vehicle stability and driving comfort; hard impacts also shorten the lifespan of vehicle components.

[0003] Therefore, those skilled in the art have provided a guide mechanism for a dual-purpose road-rail tractor to solve the problems mentioned in the background art. Summary of the Invention

[0004] The purpose of this invention is to provide a guide mechanism for a dual-purpose road and rail tractor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A road-rail dual-purpose traction vehicle guiding mechanism includes a tilting bogie. A guide connecting frame is provided below the tilting bogie. Electric drive bridges are bolted to both sides of the guide connecting frame. A drive motor for driving and a transmission housing for transmission are installed on the electric drive bridge. The tilting bogie is fixedly connected to the output shaft of the transmission housing. The tilting bogie includes a steering cylinder, a first hinge hinge hinged to the output ends of the two steering cylinders, a second hinge hinge hinged to the end of the first hinge hinge, and a steering seat fixed to the end of the second hinge hinge that can rotate in the vertical direction. The steering seat is rotatably connected to the drive wheel through a rotating shaft.

[0006] As a further aspect of the present invention: the output shaft of the drive motor is connected to the input shaft of the transmission housing via gear transmission, the transmission housing has two output shafts, and the two output shafts of the transmission housing are connected to the rotating shaft inside the power wheel via a universal coupling.

[0007] As a further embodiment of the present invention: the two output shaft ends of another transmission housing are fixedly connected to a guide wheel assembly, the guide wheel assembly including a guide wheel body, a rim fixed on one side wall of the guide wheel body, and anti-slip patterns formed on the outer circular surface of the guide wheel body.

[0008] As a further embodiment of the present invention: the cross hinge shaft is rotatably provided with a first rotating shaft and a second rotating shaft via bearings; the cross hinge shaft is rotatably connected to the guide connecting frame via the second rotating shaft; and the cross hinge shaft is rotatably connected to the dual-purpose road-rail vehicle body via the first rotating shaft.

[0009] Compared with the prior art, the beneficial effects of the present invention are: This invention, through the cooperation of the guide connecting frame and the cross hinge shaft, ensures that the track guide wheel can conform to the track movement, effectively absorbing the impact and vibration caused by track unevenness, reducing the impact of vibration on the vehicle and track guide wheel, improving the stability and comfort of vehicle driving, and extending the service life of vehicle parts, making the traction process smoother. The anti-slip texture and wheel rim on the outer circumferential surface of the guide wheel can provide friction and running guidance to conform to the track, ensuring smoother operation. Attached Figure Description

[0010] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is a bottom view of the present invention; Figure 3 This is a schematic diagram of the invention installed on the rear of a dual-purpose road-rail tractor.

[0011] In the diagram: 1. New energy vehicle body; 2. Track; 3. Power wheel; 4. Guide connecting frame; 5. Electric drive axle; 501. Drive motor; 502. Transmission housing; 6. Connecting parts; 7. Guide wheel assembly; 701. Guide wheel body; 702. Anti-slip texture; 703. Wheel flange; 8. Swing bogie; 801. Steering cylinder; 802. Hinge 1; 803. Hinge 2; 804. Steering seat; 9. Cross hinge shaft; 901. Rotating shaft 1; 902. Rotating shaft 2. Detailed Implementation

[0012] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0013] Please see Figures 1 to 3In this embodiment of the invention, the guide mechanism of the dual-purpose road-rail traction vehicle includes a swing bogie 8. A guide connecting frame 4 is provided below the swing bogie 8. Electric drive bridges 5 are bolted to both sides below the guide connecting frame 4. A drive motor 501 for driving and a transmission housing 502 for transmission are installed on the electric drive bridge 5. The swing bogie 8 is fixedly connected to the output shaft of the transmission housing 502. The swing bogie 8 includes a steering cylinder 801, a first hinge 802 hinged to the two output ends of the steering cylinder 801, a second hinge 803 hinged to the end of the first hinge 802, and a steering seat 804 fixed to the end of the second hinge 803 and rotatable in the vertical direction. The steering seat 804 is rotatably connected to the power wheel 3 through a rotating shaft.

[0014] After adopting the above technical solution, the guide mechanism can be connected to the car body through the cross hinge shaft 9, ensuring that the guide mechanism can swing in the horizontal direction, so that each wheel can fit more closely with the track 2. Moreover, by setting the swing bogie 8, the steering cylinder 801 can drive the first hinge 802 and the second hinge 803 to act on the steering seat 804, thereby driving the power wheel 3 to rotate. This can meet the adjustment of traction guidance, making it match the turning of the track 2, making the operation more convenient, flexible and practical.

[0015] The output shaft of the drive motor 501 is connected to the input shaft of the transmission housing 502 via gear transmission. The transmission housing 502 has two output shafts, and the two output shafts of the transmission housing 502 are connected to the rotating shaft inside the power wheel 3 via a universal coupling.

[0016] Among them, the two output shaft ends of another transmission housing 502 are fixedly connected to guide wheel assembly 7. The guide wheel assembly 7 includes guide wheel body 701, wheel rim 703 fixed on one side wall of guide wheel body 701, and anti-slip texture 702 opened on the outer circular surface of guide wheel body 701. The wheel rim 703 can provide guidance and limit.

[0017] Among them, the cross hinge shaft 9 is rotatably equipped with a first rotating shaft 901 and a second rotating shaft 902 via bearings. The cross hinge shaft 9 is rotatably connected to the guide connecting frame 4 via the second rotating shaft 902, and the cross hinge shaft 9 is rotatably connected to the dual-purpose road and rail vehicle body via the first rotating shaft 901.

[0018] The working principle of this invention is: 1) Power transmission: After the drive motor 501 starts, its output shaft transmits power to the input shaft of the transmission housing 502 through gear transmission. The transmission housing 502 distributes the power to the two output shafts. If the drive motor 501 corresponding to the power wheel 3 is working, the power is transmitted to the rotating shaft inside the power wheel 3 through the universal coupling, driving the power wheel 3 to rotate. If the drive motor 501 corresponding to the guide wheel body 701 is working, the power directly drives the guide wheel body 701 to rotate. The wheel rim 703 on the guide wheel body 701 can limit the driving trajectory, and the anti-slip texture 702 can enhance the friction with the contact surface and improve driving stability.

[0019] 2) Steering Control: The tilting bogie 8 is the core structure for steering. When steering is required, the steering cylinder 801 extends or retracts, pushing or pulling the first hinge 802 at its output end. The first hinge 802 drives the second hinge 803, which is hinged to it, to rotate, thereby causing the steering seat 804, fixed to the end of the second hinge 803, to rotate vertically. Since the steering seat 804 is connected to the drive wheel 3 or the guide wheel assembly 7 via a rotating shaft, the rotation of the steering seat 804 will cause the drive wheel 3 or the guide wheel assembly 7 to deflect synchronously, thus achieving steering of the tractor. The tilting structure, through the linkage of the hinges, can flexibly adjust the steering angle to adapt to the steering requirements of different driving scenarios.

[0020] 3) Adjustment of the cross-hinged seat: The top of the guide connecting frame 4 is connected to the cross-hinged seat via a pin. The cross-hinged shaft 9 has two rotating shafts, 901 and 902, mounted on it via bearings. The cross-hinged shaft 9 is connected to the guide connecting frame 4 via the second rotating shaft 902, and to the dual-purpose road-rail vehicle body via the first rotating shaft 901. This structure allows the guide connecting frame 4 to rotate relative to the vehicle body in two mutually perpendicular planes. When the tractor travels on uneven roads or track 2, it automatically adjusts the ground pressure of each wheel set, ensuring full contact between the wheel set and the contact surface, guaranteeing uniform force distribution during travel, and improving overall driving stability.

[0021] 4) Overall Coordinated Operation: The electric drive axle 5 provides the mounting base for the power transmission and steering mechanism, and the guide connecting frame 4 connects the tilting bogie 8, the electric drive axle 5, and the cross-hinged seat into a whole. During operation, the power provided by the drive motor 501 is transmitted to the wheel set via the transmission housing 502, universal coupling, or directly to achieve drive; the steering cylinder 801 controls the steering of the wheel set through the linkage of the hinge; the cross-hinged seat adapts to road undulations through multi-directional rotation. The three work together, and the replaceable design of the guide wheel assembly 7 allows for flexible switching according to the different working conditions of both road and rail transport, ensuring that the tractor can operate reliably in both road and rail scenarios.

[0022] This mechanism, through the cooperation of the guide connecting frame 4 and the cross hinge shaft 9, ensures that the guide wheel of the track 2 can move in close contact with the track 2. It can effectively absorb the impact and vibration caused by the unevenness of the track 2, reduce the impact of vibration on the vehicle and the guide wheel of the track 2, improve the stability and comfort of the vehicle's driving, and extend the service life of vehicle parts, making the traction process smoother. The anti-slip texture 702 and the wheel rim 703 on the outer circular surface of the guide wheel body 701 can provide friction and running guidance to fit the track 2, ensuring smoother operation.

[0023] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A guide mechanism for a dual-purpose road-rail traction vehicle, including a tilting bogie (8), characterized in that: The tilting bogie (8) is provided with a guide connecting frame (4) below it. Both sides of the guide connecting frame (4) are connected to an electric drive bridge (5) by bolts. The electric drive bridge (5) is equipped with a drive motor (501) for driving and a transmission housing (502) for transmission. The output shaft of the transmission housing (502) is fixedly connected to the tilting bogie (8). The tilting bogie (8) includes a steering cylinder (801), a first hinge (802) hinged to the two output ends of the steering cylinder (801), a second hinge (803) hinged to the end of the first hinge (802), and a steering seat (804) fixed to the end of the second hinge (803) that can rotate in the vertical direction. The steering seat (804) is rotatably connected to the power wheel (3) through a rotating shaft.

2. The road-rail dual-purpose traction vehicle guiding mechanism according to claim 1, characterized in that: The output shaft of the drive motor (501) is connected to the input shaft of the transmission housing (502) by gear transmission, and the transmission housing (502) has two output shafts.

3. The road-rail dual-purpose traction vehicle guiding mechanism according to claim 2, characterized in that: One of the transmission housings (502) has two output shafts connected to the rotating shaft inside the power wheel (3) via a universal coupling; the other transmission housing (502) has two output shafts with guide wheel assemblies (7) fixedly connected to their ends.

4. The road-rail dual-purpose traction vehicle guiding mechanism according to claim 3, characterized in that: The guide wheel assembly (7) includes a guide wheel body (701), a rim (703) fixed on one side wall of the guide wheel body (701), and anti-slip patterns (702) formed on the outer surface of the guide wheel body (701).

5. The road-rail dual-purpose traction vehicle guiding mechanism according to claim 1, characterized in that: The cross hinge shaft (9) is rotatably provided with a first rotating shaft (901) and a second rotating shaft (902) via bearings. The cross hinge shaft (9) is rotatably connected to the guide connecting frame (4) via the second rotating shaft (902), and the cross hinge shaft (9) is rotatably connected to the dual-purpose road and rail vehicle body via the first rotating shaft (901).

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