Articulated Locomotive Bogies In Train for The Railway

Overview of Technical background:

The bogie is a rail vehicle structures that play a train unit bearing carrier, power traction transmission and suspension, and braking system is an important part of a comprehensive system.

The bogie mainly can:

1. Increase the load capacity, length and volume of the vehicle, and enhance the vehicle’s running speed to meet the needs of railway transportation development;

2. Ensure that under normal operating conditions, the vehicle can be reliably positioned on the bogie. Through the bearing device, the rolling of the wheels along the rails is converted into the translational movement of the vehicle along the road.

3. Ensure the safe operation of the vehicle, enabling it to run flexibly along a straight line and smoothly pass through curves.

（1）. The structure of the bogie should facilitate the installation of the spring vibration-damping device, enabling it to have excellent vibration-damping characteristics, thereby mitigating the interaction between the vehicle and the circuit, reducing vibration and shock, minimizing dynamic stress, and enhancing the smoothness and safety of vehicle operation.

（2）. Support the vehicle body, bear and transfer various loads and forces from the vehicle to the wheels or from the wheel-rail to the vehicle, and evenly distribute the axle load.

（3）. Make full use of the adhesion between the wheels and rails to transmit the traction force and braking force, amplify the braking force generated by the brake cylinder, and ensure that the vehicle has a good braking effect to guarantee parking within the specified distance.

（4）. The existing locomotive bogies have many problems during operation, such as generating dust and noise easily, consuming a large amount of lubricating oil, having a relatively low load-bearing capacity of the core discs, a short service life, rapid wear, frequent maintenance requirements, and high costs. Technical implementation elements.

4. The utility model aims to provide a connection-type locomotive bogie, which solves many problems existing in the current locomotive bogies, such as the easy generation of dust and noise during movement, the consumption of a large amount of lubricating oil, the low bearing capacity of the core plate, the short service life, the rapid wear, the frequent need for maintenance, and the high cost.

5. The technical solution adopted by the present utility model is as follows:

6. A connection-type locomotive bogie, including a bogie frame, a sleeper, a wheel set assembly, an axle box, a motor-reducer and a braking component, with a sleeper installed on the bogie frame; The said wheel set assembly includes a wheel axle and two locomotive wheels connected at both ends of the wheel axle, and the axle box is connected to the bogie frame through springs, and is also connected to the wheel set assembly to drive the movement of the wheel axle. The motor reducer is connected to the wheel set assembly and is connected to the bogie frame through a hanger rod. The braking component is located on the bogie frame and is connected to the wheelset assembly.

7. The rocker is provided with a core plate, which includes a base plate, a lower core plate, and an upper core plate arranged in sequence from bottom to top, and also includes bolts passing through the core plate. The bottom of the bolts is fixed to the base plate, the top of the bolts is connected to the nuts, and the bottom of the base plate is fixed to the rocker. The bottom of both the upper core plate and the lower core plate is provided with protruding structures, and the top of both the lower core plate and the chassis is provided with groove structures. The protruding structures are adapted to the groove structures to form an oil storage space. The side wall of the core plate is also provided with oil holes that are connected to the oil storage space.

8. The steering frame of the present utility model is placed between two trains for connecting the two trains. Specifically, they are respectively assembled on the upper and lower core discs of the articulated bogie. During operation, power can be transmitted to each wheel set assembly through the motor-reducer, and the operation of each bogie drives the train forward or backward. When the train passes through a turning track, each bogie runs along the track guidance. The train units rotate respectively on the upper and lower core discs relative to the centerline of the core discs. As the upper core disc supports the rotation within the lower core disc, and lubricating oil can be injected into the sealed space through oil holes to lubricate the connection between the upper and lower core discs, thereby reducing wear and extending service life. Enable the train to pass through the curves of the line safely and smoothly.

9.The use of a connecting bogie to link two trains not only ensures the load-bearing capacity, transmission of traction force, braking force, and curve guidance function, but also significantly reduces the number of bogies configured, lowering the manufacturing and maintenance costs of the equipment. Further, a circular concave platform is provided at the center of the protruding structure, and a circular convex platform is provided at the center of the groove structure, and the circular concave platform is adapted to the circular convex platform to form a rotating space.

10. Among them, the depth of the circular concave platform is greater than the height of the circular convex platform. 11. Among them, the rotating space is connected to the oil storage space.

12. Among them, a plurality of balls are provided in the rotating space, and the diameter of the balls is comparable to the clearance of the rotating space.

13. The bottom of both the upper core plate and the lower core plate of the present utility model are provided with protruding structures, and the top of both the lower core plate and the base plate are provided with groove structures. A circular concave platform is provided at the center of the protruding structure. A circular convex platform is provided at the center of the concave platform structure. The circular concave platform is adapted to the circular convex platform to form a rotating space. The depth of the said circular concave platform is greater than the height of the circular convex platform. The bottom surface of the upper core plate is supported on the rotating space.

14.The protruding structure is completely contained in the lower core plate. The protruding structure and the groove structure, as well as the circular convex platform and the circular concave platform, isolate the oil storage space, which can increase the oil storage capacity and enable the lower core plate and the upper core plate not to need to be lubricated for a relatively long time. It can maintain the coaxiality between the upper core disk and the lower core disk more reliably. Preferably, the present utility model is provided with several balls in the rotating space. With the cooperation of lubricating oil, it can not only reduce wear and extend the service life of the core disk, but also fill the rotating space to prevent the upper core disk and the lower core disk from deviating from the central axis where the core disk is located, and avoid the collision between the upper core disk and the lower core disk. The core disk of the present utility model has the advantages of high transmission efficiency, no energy loss caused by friction, no hard impact between parts, long service life of parts, saving lubricating oil, no dust and noise during operation, and strong load-bearing capacity.

15. Further, the steering frame is placed between two train units and is used to connect the two trains.

16. In conclusion, due to the adoption of the above technical solution, the beneficial effects of the present utility model are: A kind of connecting locomotive bogie enables the upper and lower core discs to rotate relative to the centerline of the core discs. As the upper core disc supports the rotation within the lower core disc and lubricating oil can be injected into the sealed space through oil holes to lubricate the connection between the upper and lower core discs, it reduces wear and extends service life, allowing the train to pass through the curves of the line safely and smoothly. The use of a connecting bogie to link two trains not only ensures the load-bearing capacity, transmission of traction force, braking force, and curve guidance function, but also significantly reduces the number of bogies configured, lowering the manufacturing and maintenance costs of the equipment.

17. In the present utility model, the bottom of both the upper core plate and the lower core plate are provided with protruding structures, and the top of both the lower core plate and the base plate are provided with groove structures. A circular concave platform is provided at the center of the protruding structure, and a circular convex platform is provided at the center of the concave platform structure. Moreover, the circular concave platform and the circular convex platform are adapted to each other, forming a rotation space and an oil storage space, which can increase the oil storage capacity. This enables the lower core pan and the upper core pan to be lubricated for a relatively long time without the need for oil injection. It can maintain the coaxiality between the upper core disk and the lower core disk more reliably.

18. Several balls are set in the rotating space. With the cooperation of lubricating oil, it can not only reduce wear and extend the service life of the core disk, but also fill the rotating space to prevent the upper and lower core disks from deviating from the central axis where the core disks are located, and avoid the collision between the upper and lower core disks.

Supplier

Luoyang Fonyo Heavy Industries Co., Ltd,founded in 1998,is a manufacturer in cast railway parts.Our factory covers an area of 72,600㎡, with more than 300 employees, 32 technicians, including 5 senior engineers, 11 assistant engineers, and 16 technicians.Our production capacity is 30,000 tons per year. Currently, we mainly produce casting, machining, and assembly for locomotive,railcar,high-speed trains, mining equipment,wind power,etc.Our products have been exported to Russia, the United States, Germany, Argentina, Japan, France, South Africa,Italy and other countries.
Contact:Cathy
Email:sales@railwaypart.com
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