CN219467743U

CN219467743U - Trailer bogie structure

Info

Publication number: CN219467743U
Application number: CN202320435478.1U
Authority: CN
Inventors: 李新仁; 韩新丰; 张兴春; 武艺; 马文斌
Original assignee: China Railway Lanzhou Group Co Ltd
Current assignee: China Railway Lanzhou Group Co Ltd
Priority date: 2023-03-09
Filing date: 2023-03-09
Publication date: 2023-08-04
Anticipated expiration: 2033-03-09

Abstract

The utility model relates to the technical field of railway machinery, in particular to a trailer bogie structure, which comprises a bogie component for controlling the direction and a buffer component for damping, wherein the buffer component is arranged on the bogie component through a flexible hinging seat; the buffer assembly comprises a beam for connecting the bogie assembly and a plurality of auxiliary shock absorption springs for reducing the up-down vibration amplitude, and the number of the auxiliary shock absorption springs is several; two ends of the auxiliary damping spring are respectively connected with the beam and the bogie assembly; the buffer assembly is also provided with a tractor for providing power. The lower torsional rigidity and the proper diamond-resistant rigidity are provided through the buffer function of the auxiliary damping spring in the buffer assembly, so that the damping capacity is stronger when the damping assembly passes through a rough line; meanwhile, the bogie in the structure not only can support the car body and bear and buffer impact acting force between the car body and wheels.

Description

Trailer bogie structure

Technical Field

The utility model relates to the technical field of railway machinery, in particular to a trailer bogie structure.

Background

The bogie is an important component of the railway vehicle, and all components of the bogie are assembled together through a framework to form a bogie whole, so that the bogie not only plays a role in supporting the positioning of the vehicle body and the wheel pair boxes, but also bears and transmits various internal and external alternating loads and excitation roles from the vehicle body and the lines in the running process of the train. The bogie is a key point for ensuring the safe and reliable operation of the train on various lines. Along with the continuous promotion of train operation speed, the actual operating mode that its train faced becomes more complicated abominable, and under the repeated action of inside and outside various alternating loads and excitation, bogie spare part produced the damage easily, and fatigue damage is showing and is increasing, and the frame structure flexibility is not enough, because the damage that vibration impact force brought is showing and is increasing, has constituted serious threat to driving safety.

In order to solve the above problems, the present utility model provides a trailer bogie structure.

Disclosure of Invention

The utility model aims to provide a trailer bogie structure, which provides lower torsional rigidity and proper diamond-resistant rigidity, so that the bogie has stronger vibration damping capability when passing through a rough line.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a trailer bogie structure comprises a bogie component for controlling the direction and a buffer component for damping, wherein the buffer component is arranged on the bogie component through a flexible hinging seat;

the buffer assembly comprises a beam for connecting the bogie assembly and a plurality of auxiliary shock absorption springs for reducing the up-down vibration amplitude, and the number of the auxiliary shock absorption springs is several; two ends of the auxiliary damping spring are respectively connected with the beam and the bogie assembly; the buffer assembly is also provided with a tractor for providing power.

Further, a main damping spring is arranged between the tractor and the inner bottom wall of the cross beam in a penetrating way.

Further, the tractor is a flexible tractor.

Further, the buffer component is also provided with a supporting plate.

Further, the bogie assembly comprises two reinforcing beams arranged on the rail, and wheel pairs are arranged at the front end and the rear end of each reinforcing beam; the reinforcing beam wheel sets are rotationally connected through wheel sets.

Further, one of the wheel pairs is provided with a brake disc; the hydraulic motor is arranged on the reinforcing beam, and the brake caliper is arranged on the hydraulic motor; the brake disc is subjected to braking operation by a brake caliper.

Further, the outside of hydraulic motor is provided with the hydraulic motor protective housing that is used for the protection.

Further, the hydraulic motor protective housing sets up U type structure, just the opening of hydraulic motor protective housing sets up down.

Compared with the prior art, the utility model has the beneficial effects that:

the lower torsional rigidity and the proper diamond-resistant rigidity are provided through the buffer function of the auxiliary damping spring in the buffer assembly, so that the damping capacity is stronger when the damping assembly passes through a rough line;

meanwhile, the bogie in the structure not only can support the car body and bear and buffer and transfer impact acting force between the car body and wheels;

the brake disc arranged on the bogie can also perform braking operation.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.

In the drawings:

FIG. 1 is a schematic view of the structure of the present utility model;

fig. 2 is a schematic structural view of a buffering assembly in the present utility model.

In the figure: 1. a rail; 2. a wheel set; 3. a brake disc; 4. a brake caliper; 5. a hydraulic motor; 6. a hydraulic motor protective housing; 7. an auxiliary damping spring; 8. a supporting plate; 9. a retractor; 10. a cross beam; 11. reinforcing the beam; 12. an axle; 13. a flexible hinge base; 14. and a main damping spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides the following technical scheme:

as shown in the drawing, the liquid crystal display device,

a trailer bogie structure comprises a rail 1, a wheel set 2, a brake disc 3, a brake caliper 4, a hydraulic motor 5, a hydraulic motor protective shell 6, a main damping spring 14, an auxiliary damping spring 7, a supporting plate 8, a flexible tractor 9, a cross beam 10, a reinforcing beam 11, a wheel set 2 shaft and a flexible hinging seat 13; the rail 1 is positioned at the lowest end of the whole mechanism and is used for supporting a train, bearing the weight of wheels, enabling the bogie to change the driving direction, and the wheel set 2 is positioned at the forefront of the whole mechanism and straddles the rail 1 under the action of gravity and is used for ensuring the running and steering of rolling stock on the steel rail, bearing all static and dynamic loads from the rolling stock, transmitting the static and dynamic loads to the steel rail and transmitting the loads generated by unsmooth lines to all parts of the rolling stock; the brake disc 3 is connected to the inner side of the wheel set 2 through bolts and is positioned in the right front of the whole mechanism and used for friction braking with the brake caliper 4 under the action of pressure, the brake caliper 4 is positioned outside the circumference of the brake disc 3 and fastened on the reinforcing beam 11 through screws, and the brake disc 3 is clamped by meshing through the pressure generated by the hydraulic motor 5 for braking; the hydraulic motor 5 and the hydraulic motor protection shell 6 are positioned at the right upper part of the brake caliper 4, the hydraulic motor 5 is fastened on the reinforcing beam 11 through screws, and the hydraulic motor protection shell 6 is welded on the reinforcing beam 11 and used for protecting the hydraulic motor 5; the reinforcing beam 11 is fixedly connected with the wheel set 2 through the gravity and the bearing of the semicircular shell and is used for bearing the main pressure of the train; the auxiliary damping spring 7 and the flexible hinging seat 13 are positioned at the central position of the upper part of the reinforcing beam 11, the main damping spring 14 is positioned at the central position right below the cross beam 10 and is connected with the lower end of the flexible tractor 9, and the main damping spring 14 and the auxiliary damping spring 7 act together to reduce vibration in the up-down direction; the flexible hinging seat 13 and the reinforcing beam 11 are welded and fixed on the outer side of the upper central position and used for reducing vibration impact in the front-rear direction of the train, and the auxiliary damping spring 7 and the reinforcing beam 11 are fixed on the inner side of the upper central position through a central shaft and used for reducing vibration impact in the up-down direction of the train; the supporting plate 8 is positioned on two sides right above the flexible hinging seat 13 and the auxiliary damping spring 7, is welded and fixed with the middle shaft of the auxiliary damping spring 7 and is used for lifting a train to play a supporting role; the cross beam 10 is welded between the left and right supporting plates 8 and is used for bearing the gravity of the train.

On this basis, the flexible tractor 9 is a flexible buffer device, the main damping springs 14 are installed below the flexible tractor 9, eight auxiliary damping springs 7 are distributed around the lower portion of the reinforcing beam 11, vibration in the up-down direction can be reduced to a great extent, meanwhile, the flexible hinge seat 13 is arranged, vibration impact in the front-back direction can be reduced, the interaction of the two can buffer the whole steering frame, impact on a train caused by irregularity of a buffer track can be reduced, impact force in the front-back direction is reduced, a car body located on the steering frame can be kept in a stable state in the running process, the car body is supported, loads and acting forces in all directions between the car body and the wheel sets 2 are born and transferred, the loads and the acting forces are evenly distributed to each wheel set 2, and the flexible tractor 9 utilizes adhesion between wheel tracks to transfer traction force and braking force, ensures the stability of the straight running of the car, good curve passing capability and completes braking within a safe distance range.

The working process and the working principle are as follows:

when the trailer bogie structure works, a train pulls the driving wheel pair 2 to advance on the rail 1 through the traction flexible tractor 9, the cross beam 10 and the reinforcing beam 11 are used for bearing main pressure of the train, the supporting plate 8 is used for lifting the train and supporting the train, the flexible hinging seat 13 is used for reducing vibration impact in front and back directions of the train, the main damping springs 14 are used for buffering large vibration force in main up and down directions of the train, the eight auxiliary damping springs 7 are used for further buffering small vibration force in auxiliary up and down directions of the train, the main damping springs 14 and the eight auxiliary damping springs 7 jointly act and are used for reducing vibration impact in the up and down directions of the train, the flexible hinging seat 13, the main damping springs 14 and the auxiliary damping springs 7 jointly act to enable the train to keep integral flexible damping performance, and the brake caliper 4 acts to clamp the brake disc 3 under the pressure provided by the hydraulic motor 5 in a meshed mode, so that friction force is increased and the whole machine is braked to be static; in the event of an external crash, the hydraulic motor protection housing 6 provides protection for the hydraulic motor 5 against failure of the brake disc 3 due to failure of the hydraulic motor 5. Compared with the common trailer bogie, the scheme has the advantages that the impact of track irregularity on the train is greatly reduced and buffered, and the train is kept in a stable state.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A trailer bogie structure, characterized by: the steering device comprises a steering frame component for controlling the direction and a buffer component for damping, wherein the buffer component is arranged on the steering frame component through a flexible hinging seat (13);

the buffer assembly comprises a cross beam (10) for connecting the bogie assembly and auxiliary shock absorption springs (7) for reducing the up-down vibration amplitude, and the number of the auxiliary shock absorption springs (7) is a plurality; two ends of the auxiliary damping spring (7) are respectively connected with the cross beam (10) and the bogie assembly; the buffer assembly is also provided with a tractor (9) for providing power.

2. A trailer bogie arrangement according to claim 1 wherein: a main damping spring is arranged between the tractor and the inner bottom wall of the cross beam in a penetrating way.

3. A trailer bogie arrangement according to claim 2 wherein: the tractor (9) is a flexible tractor.

4. A trailer bogie arrangement according to claim 1 wherein: and the buffer component is also provided with a supporting plate (8).

5. A trailer bogie arrangement according to any one of claims 1 to 4 wherein: the bogie assembly comprises two reinforcing beams (11) arranged on the rail (1), and wheel pairs (2) are arranged at the front end and the rear end of each reinforcing beam (11); the reinforcing beams (11) are rotatably connected with the wheel sets (2) through the axle of the wheel sets (2).

6. A trailer bogie arrangement as claimed in claim 5, wherein: one of the wheel sets (2) is provided with a brake disc (3) on the shaft; the hydraulic motor (5) is arranged on the reinforcing beam (11), and the brake caliper (4) is arranged on the hydraulic motor (5); the brake disc (3) is subjected to a braking operation by means of a brake caliper (4).

7. A trailer bogie arrangement as claimed in claim 6, wherein: the outside of the hydraulic motor (5) is provided with a hydraulic motor (5) protective shell for protection.

8. A trailer bogie arrangement as claimed in claim 7, wherein: the hydraulic motor (5) protective housing sets up U type structure, just the opening of hydraulic motor (5) protective housing sets up downwards.