CN215752394U - Bogie and connecting assembly thereof - Google Patents

Abstract

The utility model relates to a connecting assembly of bogie and bogie, the bogie includes the side bearer, bolster and connecting assembly, connecting assembly locates between the eight characters face of the stand of side bearer and bolster, and with in wearing part between connecting assembly and the stand and the wearing part between connecting assembly and the eight characters face, at least one sets up to elasticity wearing part, elasticity wearing part includes elastic construction and wearing plate, elastic construction can provide cushioning effect for the wearing plate, make along vertically having certain flexibility between bolster and the side bearer, lead to the difficult transmission of rail force to the automobile body, reduce the impact, thereby can effectively improve the critical speed of vehicle, reduce the abrasion between wheel rail wearing and wearing plate and the friction surface, reduce the maintenance cost, improve comprehensive economic benefits.

Description

Bogie and connecting assembly thereof

Technical Field

The application relates to the technical field of railway freight cars, in particular to a bogie and a connecting assembly of the bogie.

Background

The bogie is a running part of the railway wagon, and has the functions of supporting a wagon body, steering and braking, so that the vehicle can stably and safely run on the track. The traditional cast steel three-piece bogie is divided into two damping systems of a control type (constant friction) and a variable friction type, wherein a swing bolster and a side frame are connected through a damper and a spring, and longitudinal force is rigidly transmitted in the longitudinal direction of a vehicle.

In the longitudinal direction of the vehicle (along the track direction), longitudinal force is rigidly transmitted between the side frame and the bolster through the connecting assembly, and the connecting assembly and the side frame and the bolster are rigidly acted without buffering, so that the critical speed is low, and the abrasion is high.

Therefore, how to increase the critical speed of the vehicle, reduce the wear of various parts of the vehicle, and increase the service life of parts is a technical problem that needs to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bogie and coupling assembling of bogie can improve the critical speed of vehicle, reduces the wearing and tearing of each part of vehicle, improves the life of spare part.

In order to solve the technical problem, the application provides a connecting assembly of a bogie, which is arranged between an upright post of a side frame of the bogie and a splayed surface of a swing bolster, wherein the connecting assembly comprises a body part, a first wearing part and a second wearing part; the body part comprises a bottom wall, a first side wall and a second side wall, the first side wall is perpendicular to the bottom wall, the bottom edge of the second side wall is connected with the bottom wall, and the top of the second side wall inclines towards one side of the first side wall; the first wearing part can be clamped between the first side wall and a stand column of the side frame, the second wearing part can be clamped between the second side wall and a splayed surface of the swing bolster, the first wearing part and/or the second wearing part comprise an elastic wearing part, and the elastic wearing part comprises an elastic structure and a wearing plate.

The first wearing part comprises an elastic wearing part, or the second wearing part comprises an elastic wearing part, or the first wearing part and the second wearing part respectively comprise elastic wearing parts, namely, in two wearing parts on two sides of the same connecting component, at least one wearing part comprises an elastic wearing part which comprises an elastic structure and a wearing plate, wherein the wearing plate can realize vibration reduction through friction with a friction surface, the elastic structure has elasticity according to the literal meaning, and the elastic structure can provide a buffer effect for the wearing plate in the friction process with the friction surface, so that the wearing condition of the wearing plate and the friction surface can be reduced, the wearing is reduced, and the service life of each part is prolonged.

And theoretical analysis results show that the swing bolster and the side frames of the cast steel three-piece bogie are elastically connected, the abrasion piece comprises an elastic abrasion part under proper diamond-resistant rigidity, and when the abrasion plate is provided with a buffering effect through an elastic structure, certain flexibility can be formed between the swing bolster and the side frames along the longitudinal direction, so that rail force is not easily transmitted to a vehicle body, impact is reduced, the critical speed of a vehicle can be effectively improved, wheel rail abrasion and abrasion between the abrasion plate and the abrasion surface are reduced, the maintenance cost is reduced, and the comprehensive economic benefit is improved.

Optionally, the first and second side walls have a width of 210mm to 280mm, and the wear plates of the first wear piece and the second wear piece have a width of 210mm to 280 mm.

Optionally, the second side wall is provided with a positioning protrusion, the positioning protrusion can be matched with a positioning groove formed in the swing bolster, and the positioning protrusion is of a strip-shaped structure.

Optionally, the second wear member includes two wear blocks, and the two wear blocks are respectively located on both sides of the positioning protrusion in the width direction.

Optionally, the positioning protrusion is further provided with a weight reduction structure.

Optionally, the body further comprises a top wall connected to a top end of the first side wall and a top end of the second side wall, and the top wall, the bottom wall, the first side wall and the second side wall can enclose to form a hollow structure.

Optionally, the resilient structure is a wear resistant rubber piece, a polyurea piece or a rubber pad.

Optionally, the elastic wear part is of an integral structure, and the elastic wear part is a wear-resistant rubber wear part, a polyurea wear part or a carbon fiber wear part.

The application still provides a bogie, it includes side bearer, bolster and as above coupling assembling, the bolster the spring cushion cap with still be equipped with damping spring between the mount table of side bearer, the stand of side bearer with be equipped with between the eight characters face of bolster coupling assembling.

The technical effect of the bogie with the connecting assembly is similar to that of the connecting assembly, and for saving space, the detailed description is omitted.

Optionally, a connecting spring is further arranged between the bottom wall of the connecting assembly and the mounting table; the width of first lateral wall with the second lateral wall is 210mm-280mm, the spring cushion cap still is equipped with the space of stepping down, the space of stepping down is equipped with the reinforcing plate, the breach has been seted up to the reinforcing plate, the breach with connecting spring corresponds, connecting spring can follow direction of height in the breach and float.

Drawings

FIG. 1 is a schematic structural diagram of a bogie provided in an embodiment of the present application;

FIG. 2 is a schematic view of the arrangement of FIG. 1 with the bolster and one side frame removed;

FIG. 3 is a schematic structural view of the coupling assembly of FIG. 3;

FIG. 4 is an exploded view of the connection assembly;

FIG. 5 is a schematic structural view of the side sill, bolster and attachment assembly prior to installation;

fig. 6 is a partial structural schematic view of the side member.

In the accompanying fig. 1-6, the reference numerals are illustrated as follows:

100-a connecting assembly; 200-side frame, 210-upright column, 220-mounting table and 230-positioning block; 300-swing bolster, 310-splayed surface, 320-positioning groove, 330-spring bearing platform, 340-reinforcing plate and 350-notch; 400-a damping spring;

1-body part, 11-bottom wall, 12-first side wall, 13-second side wall, 14-top wall, 15-positioning projection, 16-weight reducing structure, 17-cavity;

2-a first wear member;

3-second wear part, 31-wear block;

41-elastic structure, 42-wear plate;

5-connecting a spring;

61-mounting projection, 62-mounting hole.

Detailed Description

In order to make the technical solutions of the present application better understood by those skilled in the art, the present application is further described in detail with reference to the accompanying drawings and specific embodiments.

The embodiment of the application provides a truck and a connecting assembly 100 of the truck, wherein as shown in fig. 1 and 2, the truck comprises a side frame 200, a bolster 300 and the connecting assembly 100, a damping spring 400 is further arranged between a spring bearing 330 of the bolster 300 and a mounting table 220 of the side frame 200, the connecting assembly 100 is arranged between a vertical column 210 of the side frame and a splayed surface 310 of the bolster 300, as shown in fig. 2, two connecting assemblies 100 are respectively arranged on the left side and the right side of the bolster 300 and between the front side and the rear side of each side in the longitudinal direction (specifically, in the width direction of a vehicle) and a vertical column 210 of the side frame 200, that is, four connecting assemblies 100 are arranged between the bolster 300 and two side frames 200 so as to realize the transmission of longitudinal force between the side frames 200 and the bolster 300.

As shown in fig. 3 and 4, the connecting assembly 100 includes a body portion 1, the body portion 1 includes a bottom wall 11, a first side wall 12 and a second side wall 13, the first side wall 12 is disposed perpendicular to the bottom wall 11, a bottom edge of the second side wall 13 is connected to the bottom wall 11, and a top portion of the second side wall 13 is disposed obliquely toward one side of the first side wall 12. It will be understood that the perpendicular arrangement between the first side wall 12 and the bottom wall 11 means that there is an angle of substantially 90 ° therebetween, without excluding slight deviations, such as 88 °, 92 ° and the like.

The connecting assembly 100 further includes a first wear member 2 and a second wear member 3, and when the connecting assembly 100 is installed between the upright 210 of the side frame 200 and the figure eight surface 310 of the bolster 300, the first wear member 2 can be interposed between the first side wall 12 and the upright 210 of the side frame 200, and the second wear member 3 can be interposed between the second side wall 13 and the figure eight surface 310 of the bolster 300. Specifically, the first wear member 2 may be provided on the first side wall 12, in which case the upright 210 of the side frame 200 is provided with a friction surface, and the first wear member 2 may be provided on the upright 210 of the side frame 200, in which case the first side wall 12 is provided with a friction surface, and the wear plate 42 of the first wear member 2 can rub against the friction surface to achieve vibration reduction. Similarly, the second wear member 3 may be provided on the second side wall 13, in which case the figure of eight 310 provides a friction surface, or the second wear member 3 may be provided on the figure of eight 310 of the bolster 300, in which case the second side wall 13 provides a friction surface, and the wear plate 42 of the second wear member 3 can rub against the friction surface to achieve vibration damping.

The first wear part 2 includes an elastic wear part, or the second wear part 3 includes an elastic wear part, or the first wear part 2 and the second wear part 3 respectively include elastic wear parts, that is, of two wear parts on both sides of the same connecting assembly 100, at least one wear part includes an elastic wear part, as shown in fig. 4, the elastic wear part includes an elastic structure 41 and a wear plate 42, wherein the wear plate 42 can rub against the friction surface to achieve vibration reduction, and the elastic structure 41 has elasticity according to the literal meaning, and the elastic structure 41 can provide a buffer effect for the wear plate 42 during rubbing against the friction surface, so that the wear condition of the wear plate 42 and the friction surface can be reduced, the wear can be reduced, and the service life of each part can be prolonged.

And, theoretical analysis results show that the bolster 300 and the side frame 200 of the cast steel three-piece bogie are elastically connected, under appropriate diamond-resistant rigidity, the wear piece comprises an elastic wear part, and when the wear plate 42 is provided with a buffer effect through the elastic structure 41, certain flexibility can be provided between the bolster 300 and the side frame 200 along the longitudinal direction, so that rail force is not transmitted to a vehicle body, impact is reduced, the critical speed of the vehicle can be effectively improved, wheel rail wear and wear between the wear plate 42 and the friction surface are reduced, maintenance cost is reduced, and comprehensive economic benefits are improved.

In this embodiment, do not do the restriction to the concrete structure and the material of elastic structure 41, if when elastic structure 41 and wearing plate 42 are split type structure, can set up elastic structure 41 as wear-resisting rubber spare, polyurea spare or rubber pad, wearing plate 42 can adopt the metal sheet, and when elastic structure 41 and wearing plate 42 are the integral type structure, elasticity wearing part formula structure as an organic whole promptly, can set up this elasticity wearing part as wear-resisting rubber wearing part, polyurea wearing part or carbon fiber wearing part are all can, at this moment, this elasticity wearing part compares in the metal sheet, certain elasticity has, can also guarantee the global rigidity simultaneously.

When the elastic structure 41 and the wear plate 42 are of a split structure, the connection between the two is not limited, for example, the two can be fixed by adhesion, or the elastic structure 41 is provided with a mounting hole, the wear plate 42 is provided with a mounting protrusion, and the mounting protrusion is inserted into the mounting hole to connect the elastic structure 41 and the wear plate 42.

Likewise, the mounting of the wearing parts is not limited, and as shown in fig. 4, when the first wearing part 2 is mounted on the first side wall 12, the elastic structure 41 may be provided with a mounting protrusion 61, the first side wall 12 is provided with a mounting hole 62, the mounting protrusion 61 passes through the mounting hole 62 to achieve the mounting between the first wearing part 2 and the first side wall 12, or the elastic structure 41 is provided with a mounting hole, and the first side wall 12 is provided with a mounting protrusion.

The width of the first side wall 12 and the second side wall 13 is 210mm-280mm, such as 260mm, where the width is the dimension along the left-right direction of the bogie, which is increased by 50% -70% compared to the width of the first side wall 12 and the second side wall 13 in the prior art, and correspondingly, the width of the wear plate 42 is also increased by 50% -70%, that is, both side walls are widened, so that the contact area between the wear plate 42 and the friction surface can be increased, and therefore, the shearing moment provided by the connecting assembly 100 to resist diamond deformation of the bogie is correspondingly increased, the diamond-resistant rigidity of the whole bogie is improved, and the snake-shaped instability critical speed of the railway vehicle is further improved.

When the width of the first side wall 12 and the second side wall 13 is increased and the width of the wear plate 42 is also increased, the width of the elastic structure 41 may be set as the case may be, and the width of the elastic structure 41 may be smaller than the width of the wear plate 42 or equal to the width of the wear plate 42. That is, the wear member may be an elastic wear portion as a whole or may be an elastic wear portion in part. For example, the wear plate 42 is provided with the elastic structure 41 along one side in the width direction thereof to form an elastic wear portion, and the wear plate 42 is not provided with the elastic structure 41 along the other side in the width direction thereof, and this portion of the wear plate 42 can rigidly act with the friction surface, or the wear plate 42 is locally thinned to form an installation groove, and the elastic structure 41 is provided at the location of the installation groove, so that the matching of the diamond-resistant rigidity and the longitudinal rigidity can be achieved.

As shown in fig. 5, a connecting spring 5 is further provided between the bottom wall 11 and the mounting platform 220 of the side frame 200, when the car body of the railway car vibrates, the swing bolster 300 will float and roll relative to the side frame 200, at this time, the swing bolster 300 will press the connecting assembly 100 through the splayed surface 310 thereof, so that friction is generated between the wear plate 42 and the friction surface, and meanwhile, since the connecting spring 5 is compressed, the pressure between the connecting assembly 100 and the splayed surface 310 of the swing bolster 300 and between the connecting assembly 100 and the mounting platform 220 is further increased, the friction force between the wear plate 42 and the friction surface is increased, so that the vibration damping effect can be improved.

Coupling assembling 100 can go up and down along with coupling spring 5, bolster 300 corresponds and is equipped with the space of stepping down, the space of should stepping down can step down for coupling assembling 100's lift, avoid taking place to interfere, increase as the width of first lateral wall 12 and second lateral wall 13, wear plate 42's width increases the back, bolster 300's the space of stepping down also corresponds the increase, at this moment, for the structural strength who guarantees bolster 300, set up reinforcing plate 340 in the space department of stepping down, and simultaneously, breach 350 has been seted up to reinforcing plate 340, this breach 350 corresponds with coupling spring 5, coupling spring 5 can float along the direction of height from top to bottom in breach 350, when avoiding taking place to interfere, guarantee structural strength.

As shown in fig. 5 and 6, the mounting table 220 is provided with a positioning block 230 adapted to the damping spring 400 and the connecting spring 5, and the positioning block 230 can position each spring to avoid spring shifting and even separation.

As shown in fig. 5, the second sidewall 13 is provided with a positioning protrusion 15, the bolster 300 is further provided with a positioning groove 320, the positioning protrusion 15 can be matched with the positioning groove 320 to install and position the connecting assembly 100, and the positioning protrusion 15 is a strip-shaped structure, so that after the positioning protrusion 15 is matched with the positioning groove 320, the positioning protrusion 15 can be positioned, and the positioning protrusion 15 can be prevented from rotating.

Alternatively, in this embodiment, the octagonal surface 310 of the bolster 300 may be provided with the positioning protrusion 15, and the second sidewall 13 may be provided with the positioning groove 320, or one of the positioning protrusions 15 and the other positioning groove 320 may be provided between the pillar 210 and the first sidewall 12 of the side frame 200. Specifically, the positioning protrusion 15 and the positioning groove 320 may be in interference fit, or the positioning groove 320 may be a clamping groove, and the positioning protrusion 15 is inserted into the clamping groove to prevent the two from being separated.

As shown in fig. 4, the positioning protrusion 15 is a strip structure, the positioning protrusion 15 divides the second wear part 3 into two wear blocks 31, the two wear blocks 31 are respectively located at two sides of the positioning protrusion 15, the two wear blocks 31 simultaneously adhere to the splayed surface 310 of the swing bolster 300, that is, two wear blocks 31 arranged at intervals are arranged between the second side wall 13 and the splayed surface 310 of the swing bolster 300, so that the adhesion stability between the second wear part 3 and the splayed surface 310 can be increased, the overall width of the two wear blocks 31 arranged at intervals is large, the diamond-resistant rigidity of the whole bogie is improved, and the critical speed of snake-shaped instability of the railway vehicle is further improved.

Or, in this embodiment, the second wearing part 3 may also be an integral structure arranged along the circumferential direction of the positioning protrusion 15, and when the second wearing part 3 is configured to include two wearing blocks 31, the two wearing blocks 31 are separately manufactured and installed, so that the structure is simple and the installation is convenient.

As shown in fig. 3 and 4, the main body 1 further includes a top wall 14, the top wall 14 is connected to the top end of the first side wall 12 and the top end of the second side wall 13, the top wall 14 may be disposed substantially parallel to the bottom wall 11, so that the cross section of the main body 1 is substantially trapezoidal, of course, in this embodiment, the top wall 14 may not be disposed, the top end of the first side wall 12 is directly contacted with the top end of the second side wall 13, so that the cross section of the main body 1 is substantially triangular, and the top wall 14 is disposed to reduce the cross section area of the main body 1, thereby reducing the overall volume of the main body 1 and further reducing the overall weight.

As shown in fig. 3 and 4, the main body 1 is a hollow structure surrounded by the top wall 14, the bottom wall 11, the first side wall 12, and the second side wall 13, and a cavity 17 is provided inside the hollow structure, so that the overall weight can be further reduced, and the weight can be reduced.

As shown in fig. 3 and 4, the positioning protrusion 15 is further provided with a weight-reducing structure 16, the weight-reducing structure 16 is a through hole provided in the second side wall 13, and the through hole is communicated with the cavity 17 to achieve weight reduction, or the weight-reducing structure 16 may be a weight-reducing groove.

The foregoing is only a preferred embodiment of the present application and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims (10)

1. A connecting assembly of a bogie is arranged between a column (210) of a side frame (200) of the bogie and a splayed surface (310) of a swing bolster (300), and is characterized by comprising a body part (1), a first wearing part (2) and a second wearing part (3);

the body part (1) comprises a bottom wall (11), a first side wall (12) and a second side wall (13), wherein the first side wall (12) is perpendicular to the bottom wall (11), the bottom edge of the second side wall (13) is connected with the bottom wall (11), and the top of the second side wall (13) inclines towards one side of the first side wall (12);

the first wear part (2) can be clamped between the first side wall (12) and a column (210) of the side frame (200), the second wear part (3) can be clamped between the second side wall (13) and a splayed surface (310) of the bolster (300), and the first wear part (2) and/or the second wear part (3) comprise an elastic wear part which comprises an elastic structure (41) and a wear plate (42).

2. The connecting assembly of a bogie according to claim 1, characterized in that the width of the first side wall (12) and the second side wall (13) is 210-280 mm, and the width of the wear plate (42) of the first wear part (2) and the wear plate (42) of the second wear part (3) is 210-280 mm.

3. The connecting assembly of a bogie according to claim 1, wherein the second side wall (13) is provided with a positioning protrusion (15), the positioning protrusion (15) can be matched with a positioning groove (320) arranged on the bolster (300), and the positioning protrusion (15) is of a strip-shaped structure.

4. The connecting assembly of a bogie according to claim 3, characterized in that the second wear part (3) comprises two wear blocks (31), the two wear blocks (31) being located on either side of the locating projection (15) in the width direction.

5. A connecting assembly according to claim 3, characterized in that the positioning projection (15) is further provided with a weight-reducing structure (16).

6. A connecting assembly according to any one of claims 1-5, characterised in that the body portion (1) further comprises a top wall (14), the top wall (14) being connected to the top end of the first side wall (12) and the top end of the second side wall (13), the top wall (14), the bottom wall (11), the first side wall (12) and the second side wall (13) being able to enclose a hollow structure.

7. A bogie connection assembly according to any one of claims 1-5, characterised in that the resilient structure (41) is a wear-resistant rubber, polyurea or rubber pad.

8. The truck connection assembly of any one of claims 1-5, wherein the resilient wear portion is a one-piece structure, the resilient wear portion being a wear resistant rubber wear portion, a polyurea wear portion, or a carbon fiber wear portion.

9. A bogie, comprising a side frame (200), a bolster (300) and a connection assembly according to any one of claims 1-8, wherein a damping spring (400) is further arranged between a spring bearing platform (330) of the bolster (300) and a mounting platform (220) of the side frame (200), and the connection assembly is arranged between a vertical column (210) of the side frame (200) and a splayed surface (310) of the bolster (300).

10. A bogie as claimed in claim 9, characterised in that a connecting spring (5) is also provided between the bottom wall (11) of the connecting assembly and the mounting table (220);

the width of first lateral wall (12) with second lateral wall (13) is 210mm-280mm, spring cushion cap (330) still are equipped with the space of stepping down, the space of stepping down is equipped with reinforcing plate (340), breach (350) have been seted up in reinforcing plate (340), breach (350) with connecting spring (5) correspond, connecting spring (5) can float along the direction of height in breach (350).

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