CN205601848U - Curb girder and have rail train of this curb girder - Google Patents

Abstract

The utility model discloses a side beam, the side beam can be used to carry an air spring, the upper surface of the side beam is fixedly provided with a backing plate for installing the air spring, and the backing plate has an upper surface obtained by cutting . A guide post adapted to the air spring is provided on the side beam, and the top of the guide post is flush with the upper surface of the side beam; through holes, and the backing plate covers the joint between the guide post and the upper surface of the side beam. With this design, the backing plate can make the installation position of the air spring flat and ensure the installation quality, and at the same time reduce the pressure of the air spring on the top surface of the side beam; secondly, by adjusting the thickness of the backing plate, it can ensure that the top surface of the backing plate reaches the rail surface The distance is the same, so as to ensure that the car body is in a relatively horizontal state. On this basis, the utility model also provides a rail train with the side beam.

Description

Side sill and rail train with the same

technical field

The utility model relates to the technical field of rail vehicle bogie structures, in particular to a side beam.

Background technique

The bogie is divided into a power bogie and a trailer bogie. It is one of the most important components in a rail vehicle system. Whether its structural design is reasonable will directly affect the running quality, power performance and safety performance of the vehicle.

Therefore, the bogie we designed must meet the following requirements:

Bearing: bear the weight of each part above the bogie;

Guidance: to ensure that the vehicle runs safely on the track;

Cushioning: ease the impact of uneven lines on the vehicle and ensure that the vehicle has good running stability:

Traction (power bogie): ensure the necessary track adhesion, and transfer the traction force of the wheel circle generated at the contact point of the track to the car body;

Braking: Generate the necessary braking force to slow down or stop the vehicle within a specified distance.

In the bogie, the primary suspension device is an important part of it. The primary suspension device is installed between the axle box and the frame. Its main function is to ease the impact of the uneven track on the vehicle and ensure the stability and stability of the operation. stability, and ensure the flexible rotation of the wheelset when the vehicle passes through the curve.

The primary suspension device is fixed on the frame through a series of spring seats, and the primary spring seat carries a large load. The primary spring seat in the prior art is made of bent steel plates by welding, which has poor process performance and modularity. Low, and the work efficiency of workers is also low.

At the same time, during the welding process of the frame, the weld seam has a great influence on the size, and it is easy to cause the left and right heights of the frame to be inconsistent, which must be guaranteed through processing, thereby reducing the strength of a series of spring seats.

Utility model content

In order to solve the above technical problems, the purpose of this utility model is to provide a side beam and a rail train using the side beam, which is mainly optimized in improving the performance of a series of spring seats and improving the symmetry of the left and right sides of the frame.

A side beam, the side beam can be used to carry an air spring, the upper surface of the side beam is fixedly provided with a backing plate for installing the air spring, and the backing plate has an upper surface obtained by cutting.

Preferably, the side beam is provided with a guide post adapted to the air spring, and the top of the guide post is flush with the upper surface of the side beam;

A through hole communicating with the guide post is opened in the middle of the backing plate, and the backing plate covers the joint between the guide post and the upper surface of the side beam.

Preferably, the backing plate is circular.

Preferably, a series of spring seats are respectively fixedly provided on the lower surfaces of the two ends of the side beam, and the series of spring seats are castings.

Preferably, the top of the series of spring seats is a flat plate, and one side of the flat plate along its length direction extends downward smoothly to form a bent plate;

Below the bent plate is a box, the bottom of the box is a lower cover, and the lower cover extends to both sides along its width direction; the center of the lower cover is provided with a mounting Hole, the peripheral side of the lower cover plate is provided with a through hole for connecting a series of suspension;

The other side of the flat plate is a mounting plate, and the mounting plate extends to both sides along its width direction; a through hole for connecting a series of suspensions is opened on the peripheral side of the mounting plate.

Preferably, the lengths of the lower cover extending to both sides along the width direction are the same.

Preferably, the lengths of the mounting plate extending to both sides along its width direction are the same.

Preferably, the thickness of the mounting plate is greater than the thickness of the flat plate.

Preferably, the top of the mounting plate is flush with the flat plate, and the bottom of the mounting plate protrudes beyond the flat plate.

The present application also provides a rail train, including a bogie with a side beam, and the side beam is any one of the side beams described in the present application.

Owing to adopting above-mentioned technical scheme, the present application has the following advantages:

Compared with the existing technology, this solution adds a backing plate between the air spring on the side beam and the side beam. In this way, the dimensional accuracy of the upper surface of the backing plate after cutting can be effectively controlled. On the one hand, it can ensure the installation position of the air spring It is flat to ensure the installation quality, and at the same time, it reduces the local pressure of the air spring on the top surface of the side beam, and the local force is uniform so that the air tightness can be effectively improved; in addition, by adjusting the thickness of the backing plate, it can ensure that the top surface of the backing plate reaches the rail The distance between the planes is the same, so as to ensure that the car body is in a relatively horizontal state.

In a preferred solution of the utility model, the backing plate covers the seam between the air spring guide column and the upper surface of the side beam, and after welding and fixing is completed, the bearing capacity of the air spring seat of the side beam is further improved.

In another preferred solution of the present utility model, the primary spring seat is set as a casting. Compared with the existing method of bending the primary spring seat into a desired shape with a flat plate, this solution can completely avoid the The possibility of internal cracks can maximize safety and reliability; in addition, the stability of castings is better, and the dimensional accuracy is well controlled, which can reduce defects caused by stress concentration.

In yet another preferred solution of the present utility model, the top of the series of spring seats is a flat plate, and one side of the flat plate along its length direction extends downward smoothly to form a bent plate. The smooth transition part of the primary spring seat can better transmit force, decompose the large stress area, and minimize the stress. At the same time, the primary spring seat is made of casting to avoid metal cracks during bending.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the first angle of the primary spring seat of the present utility model;

Fig. 2 is a schematic diagram of the three-dimensional structure of the second angle of the primary spring seat of the utility model;

Fig. 3 is a schematic diagram of the first angle three-dimensional structure of the cooperation between the side beam and a series of springs of the present invention;

Fig. 4 is a schematic diagram of the second angle three-dimensional structure of the cooperation between the side beam and a series of springs of the present invention;

Fig. 5 is a structural schematic diagram of a side view of the frame assembly of the utility model;

Fig. 6 is a schematic diagram of the exploded structure of the side beam and the cross beam of the utility model;

Fig. 7 is a schematic diagram of the cooperation structure of the side beam and the beam of the present invention;

Fig. 8 is a schematic diagram of the cooperation structure of the traction rod connecting seat and the traction rod of the utility model;

Fig. 9 is a schematic diagram of a partially enlarged structure of part A in Fig. 8;

Fig. 10 is a schematic diagram of the first angle structure of the traction rod connecting seat of the present invention;

Fig. 11 is a schematic diagram of the second angle structure of the traction rod connecting seat of the present invention.

In the picture:

1. Lower cover plate; 2. Bending plate; 3. Flat plate; 4. Mounting plate; 5. Through hole; 6. Mounting hole; 7. Box body; 8. Air spring; 9. Backing plate; 10. Side beam; 10.1, side beam inner vertical plate; 10.2, side beam outer vertical plate; 11, primary spring; 12, primary spring seat; 13, vertical plate; 13.1, first vertical plate; 13.2, second vertical plate; 13.3, small vertical plate Plate; 14, crossbeam; 15, docking groove; 16, transition seat; 17, upper cover plate; 18, lower cover plate; 19, rail surface; 20, traction rod connection seat; 21, traction rod; 22, traction beam ; 23, beam connecting portion; 24, traction rod connecting portion; 25, connecting hole; 27, through hole; 28, beam connecting seat.

detailed description

In order to make those skilled in the art better understand the technical solution of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

In an embodiment of the present application, as shown in FIGS. 3 and 4 , FIG. 3 shows a perspective view of the side beam 10 , and FIG. 4 shows a perspective view of the side beam 10 at another angle. A side beam 10 in the present application, the upper part of the side beam 10 is used to carry the air spring 8, a backing plate 9 is fixedly arranged between the side beam 10 and the air spring 8, the upper surface of the backing plate 9 is made by cutting, This backing plate 9 preferably has a circular shape, but should not be limited to this shape. The addition of the backing plate 9 has the following positive effects: the backing plate 9 is added between the air spring 8 on the side beam 10 and the side beam 10 . Due to the large area of the upper cover plate 17 of the side beam 10, and the step of welding in the follow-up process, it is easy to deform the plate surface during the processing, resulting in a decrease in flatness, and the weld seam will also make the top of the left and right side beams 10 The height of the car body is inconsistent, which eventually leads to the inconsistency of the height of the left and right sides of the car body after the car is installed. For this reason, we add a backing plate 9 here. The backing plate 9 can make the installation position of the air spring 8 flat, ensure the installation quality, and reduce the pressure of the air spring 8 on the top surface of the side beam 10; secondly, adjust the backing plate 9 The thickness can ensure that the distance from the upper surface of the backing plate 9 to the rail surface 19 is consistent, so as to ensure that the car body is in a relatively horizontal state.

As shown in Figures 3 and 4, a guide column 26 adapted to the air spring 8 is inserted on the side beam 10, and the top of the guide column 26 is flush with the upper surface of the side beam 10; The through hole 27 connected to the column 26, and the backing plate 9 covers the seam between the guide post 26 and the upper surface of the side beam 10. The backing plate 9 can cover the seam to improve the airtightness, so as to prevent dust and water vapor from entering inside the cavity, causing rust to occur.

In another embodiment of the present application, the structure of the spring seat 12 is further optimized on the basis of the above structure, as shown in FIG. 1 , which shows a perspective view of the spring seat 12 at an angle. We can see the overall shape of the primary spring seat 12 in the figure. The top of a series of spring seats 12 is a flat plate 3, and the side of the flat plate 3 along its length direction extends downwards smoothly to form a bent plate 2; below the bent plate 2 is a box body 7, the box body 7 The bottom of the lower cover plate 1 is the lower cover plate 1, and the lower cover plate 1 extends to both sides along its width direction; the center part of the lower cover plate 1 is provided with a mounting hole 6, and the peripheral side of the lower cover plate 1 is provided with a set for connecting a suspension The other side of the flat plate is a mounting plate 4, and the mounting plate 4 extends to both sides along its width direction; the peripheral side of the mounting plate 4 is provided with a through hole 5 for connecting a series of suspensions, and Mounting holes are provided; the extending lengths of the mounting plate 4 respectively extending to both sides along its width direction are the same.

Since the primary spring seat 12 is integrally cast, its top surface is relatively smooth. When welding, it is welded to the two ends of the side beam 10. The bottom surface of the primary spring seat 12 is provided with two mounting positions. It is used to install the primary spring 11. When installing, the primary spring 11 is aligned with the mounting hole 6 and the through hole 5 reserved on the primary spring seat 12, and then fastened by bolts.

As a supplement to Fig. 1, as shown in Fig. 2, Fig. 2 shows a perspective view of another angle of the spring seat 12, in which we can clearly see that the top surface of the spring seat 12 has a smooth transition , this setting is conducive to load transmission, and it can also be clearly seen that the top of the mounting plate 4 is flush with the flat plate 3. This setting reduces the slope, mainly for better welding with the side beam 10, reducing The thickness of the weld seam increases strength. At the same time, the thickness of the mounting plate 4 is preferably greater than that of the flat plate 3. Since the mounting plate 4 receives huge pressure for a long time, the thickened design is beneficial to the improvement of strength and impact resistance.

As shown in Figure 5, Figure 5 is a schematic diagram of the side view structure of the bogie, in which we can clearly see the positional relationship between the backing plate 9 and the rail surface 19, the main function of the backing plate 9 is to adjust the top of the backing plate 9 The distance between the surface and the cabinet surface makes the air springs 8 on the side beams 10 on the left and right sides consistent in height, so as to ensure that the carriage runs on the rail surface 19 relatively smoothly.

This application also proposes a rail train, the bogie in this rail train includes a side beam 10, and this side beam 10 is constituted by the above-mentioned technical scheme again, and the car body using this side beam 10 is better than the existing car body The stability of the carriage is better, and the force of the primary spring seat 12 in the bogie is more uniform, and the rigidity is more balanced.

As shown in Figure 6, on the basis of the above embodiments, we have also optimized the connection between the side beam 10 and the cross beam 14. In the prior art, the connection relationship between the cross beam 14 and the side beam 10 is as follows: The side beam 10 is opened in the left and right direction in Fig. 5, and then the cross beam 14 is inserted into it, and fixed by a welding machine. This method has obvious defects, and the large stress area is concentrated on the weld seam. As we all know, the weld The strength of the seam is lower than that of the base material, because this design method has defects in the overall strength. At the same time, when the whole device is working, the inner plate of the side beam 10 will receive a bending force, so that the stress on the side beam 10 Increase, speed up the strain of the metal.

In order to solve the above technical problems, we propose the following technical solutions:

The inner side of the side beam 10 is provided with a crossbeam connection seat 28 that can be used to connect the crossbeam 14. The crossbeam connection seat 28 includes a first vertical plate 13.1, a second vertical plate 13.2 and a transition seat 16 for fixing the crossbeam 14; The plate 13.1 and the second vertical plate 13.2 are fixedly arranged between the upper cover plate 17 and the lower cover plate 18 of the side beam 10; 13.1, the second vertical plate 13.2 and the transition seat 16 form a closed cavity. Generally, we use welding to fix, but it is not limited to this form.

As a further optimization of the connection method of the above-mentioned crossbeam 14, we set the first vertical plate 13.1 into two small vertical plates 13.3, and the two small vertical plates 13.3 are arranged on the same plane along the thickness direction of the side beam 10. During the welding process, the second vertical plate 13.2 is first welded to the side beam 10, and then one of the small vertical plates 13.3 is welded inside the side beam 10, and the top edge of the small vertical plate 13.3 is welded to the upper cover plate 17 , the bottom edge is welded with the lower cover plate 18, the side edge is welded with the inner panel of the side beam 10, and then the transition seat 16 is welded to form an open box body 7, and the inside can be welded through the opening to form a double-sided Welding, improve strength with this, at last a remaining small vertical plate 13.3 is welded in the last opening, after welding finishes, install crossbeam 14, crossbeam 14 and transition seat 16 are welded.

There is the following problem between the crossbeam 14 and the transition seat 16. Since the crossbeam 14 is tubular, it is difficult to be welded at the center of the transition seat 16 during welding. Therefore, when we forge the transition seat 16, we process a The butt groove 15 is supplemented by a welding fixture. This structure facilitates accurate welding of the beam 14 to the center of the transition seat 16, making the overall device more stable.

In Fig. 7, we have shown the schematic diagram when crossbeam 14 and side beam 10 are assembled from the top, we can clearly see that first vertical board 13.1 is divided into two small vertical boards 13.3 from the figure.

A rail train is proposed in this application. The feature of this rail train is that the side beam 10 described in the text is applied in the bogie of the car body. The connection of the air spring 8 has been optimized, so this rail train has more stable characteristics.

As a more detailed optimization of the above-mentioned embodiment, we have also carried out a more in-depth optimization on the beam 14 and the traction rod 21 .

In the prior art, a traction beam 22 is arranged in the middle part of the frame, and a traction rod 21 is arranged on the traction beam 22. The traction rod 21 is fixedly connected with the crossbeam 14, and the connection between the traction rod 21 and the crossbeam 14 is a piece along the length of the crossbeam 14. A plate body arranged in the same direction has a hole on the plate body for installation with the draw beam 22. The defect of this design is that when the traction rod 21 exerts force on this plate body, the other part of the plate body and the cross beam 14 is fixedly connected, so that a bending force will be generated at both ends of the plate body. At the same time, a tensile force is generally applied to the weld seam by welding between the plate body and the beam 14, which may cause the weld seam to break and cause an accident. .

For this reason, we have designed a more optimized solution, as shown in Figures 8 and 9, which show that the side beam 10 is provided with a traction rod connection seat 20, and the traction rod connection seat 20 includes a crossbeam connection part 23 With the traction rod connection part 24, the crossbeam connection part 23 is an arc shape matching the crossbeam 14 as a whole; the traction rod connection part 24 is located below the crossbeam 14 connection part, and is integrally formed with the crossbeam connection part 23. The connecting hole 25 on the beam 14 direction.

On the basis of the above design, the cross-section of the beam connecting portion 23 is trapezoidal, the upper side of the trapezoid is shorter and connected to the beam; the lower side of the trapezoid is longer and connected to the traction rod connecting portion 24 .

Wherein the traction link connecting seat 20 is preferably a forging. Compared with castings, metal can improve its structure and mechanical properties after forging. Due to the deformation and recrystallization of the metal after the casting structure is thermally processed and deformed by forging, the original coarse dendrites and columnar grains become an equiaxed recrystallization structure with finer grains and uniform size, so that the original segregation, The compaction and welding of porosity, pores, slag inclusions, etc. will make the structure more compact and improve the plasticity and mechanical properties of the metal.

For this reason we have also proposed a kind of rail train, and this kind of rail train applies the structural design of above-mentioned traction rod connecting seat 20, and this kind of structure bears a more balanced force. When designing the structure, the direction of the force is considered, and the structure is more reasonable. Higher strength.

It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the same time, terms such as "upper", "lower", "left", "right", and "middle" quoted in this specification are only for the convenience of description, and are not used to limit the practicable scope of the present invention. The change or adjustment of the relative relationship within the scope, without any substantial change in the technical content, shall also be regarded as the applicable scope of the present invention.

The side beam provided by the present invention and the rail train using the side beam have been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present invention, and the descriptions of the above embodiments are only used to help understand the method and core idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims (10)

1. a curb girder, described curb girder can be used for carrying air spring, it is characterised in that institute Stating curb girder upper surface and be fixedly installed the backing plate for installing described air spring, described backing plate has There is the upper surface obtained by machining.

2. curb girder as claimed in claim 1, it is characterised in that described curb girder be provided with The guide pillar that described air spring is adaptive, the top of described guide pillar is concordant with the upper surface of described curb girder；

The middle part of described backing plate offers the through hole connected with described guide pillar, and described backing plate covers Cover the seam crossing between the upper surface of described guide pillar and described curb girder.

3. curb girder as claimed in claim 2, it is characterised in that described backing plate is circular.

4. the curb girder as described in arbitrary in claims 1 to 3, it is characterised in that described side The lower surface at beam two ends is fixedly installed primary spring seat respectively, and described primary spring seat is foundry goods.

5. curb girder as claimed in claim 4, it is characterised in that described primary spring seat Top is a flat board, and described flat board, in side along its length, the most smoothly extends shape Become one piece of bent plate；

Being a casing in the lower section of described bent plate, the bottom of described casing is lower cover, described under Cover plate is extending to both sides respectively along its width；The centre of described lower cover offers Installing hole, all sides of described lower cover offer the through hole for connecting single stage suspension；

The opposite side of described flat board is installing plate, described installing plate along its width respectively to Both sides extend；The through hole for connecting single stage suspension is offered in all sides of described installing plate.

6. curb girder as claimed in claim 5, it is characterised in that described lower cover is along it The length that width extends to both sides respectively is identical.

7. curb girder as claimed in claim 6, it is characterised in that described installing plate is wide along it The length that degree direction extends to both sides respectively is identical.

8. curb girder as claimed in claim 7, it is characterised in that the thickness of described installing plate Thickness more than described flat board.

Curb girder the most according to claim 8, it is characterised in that: the top of described installing plate Portion is concordant with described flat board, and the bottom of described installing plate protrudes from described flat board.

10. a track train, including the bogie with curb girder, it is characterised in that described Curb girder is the curb girder according to any one of claim 1 to 9.