A vehicle body and a rubber-tyred train

Abstract

The application discloses a vehicle body, which comprises a roof, side walls, a chassis and end walls, the chassis comprises a front end beam, a front goose-shaped beam, a passenger room unit and a rear goose-shaped beam connected in sequence, the side walls comprise a side wall front end structure, the side wall front end structure comprises a first stand column and a second stand column, the second stand column is connected with the chassis, a first profile arranged vertically is arranged between the first stand column and the second stand column, a second profile arranged horizontally is arranged below the first profile and the first stand column, one end of the second profile is embedded in the second stand column, and the first stand column and the first profile are fixedly connected with the terminal above the front goose-shaped beam through the second profile. The front end stand column is moved above the wheel, and there is no A column, so that the driver's room has large modeling space and good field of vision; a space frame force transmission path in multiple directions is arranged between the front end stand column and the chassis, and each force transmission path is smooth.

Description

TECHNICAL FIELD

[0001] The present application relates to a vehicle body and a rubber-tyred train, and belongs to the technical field of ground rubber-tyred vehicles. BACKGROUND

[0002] In order to make the rubber-tyred train have the appearance effect of a tram, a long cab shape and a drum-shaped cross section instead of a rectangular cross section are required. Lightweighting can reduce energy consumption and improve endurance, so lightweight materials should be used for parts of the rubber-tyred train that are subjected to less stress. Aluminum alloy profiles are a commonly used lightweight material.

[0003] In order to avoid the front end of the train scratching the road surface when climbing a slope, the cab is provided with an approach and departure angle that is greater than the slope angle. Under the condition of ensuring the angle of the approach and departure angle, if the length from the front end of the cab to the front wheel is too large, the size of the wheel needs to be increased, but this will affect the appearance of the vehicle, so the cab shape can only be extended rearward. The cross section of the aluminum alloy profile body is constant along the length direction, but the cab shape needs to change in a complex curve along the length direction in order to express artistic features, so the front end surface of the upper structure of the vehicle body is the cutoff surface of the external shape of the cab. If the cab shape is extended rearward, the front end surface of the upper structure of the vehicle body needs to move rearward. As the front end surface of the upper structure of the vehicle body moves rearward, the front end surface of the upper structure of the vehicle body moves to above the wheel, which breaks the downward force transmission path of the front end structure of the vehicle, and reduces the stability of the front end structure of the vehicle.

[0004] The maximum width of a drum-shaped vehicle is not at the position of the chassis but at the middle of the side wall. In order to prevent the vehicle side from being scratched or crushed by a sling when hoisting, a cross beam with a length greater than the width of the vehicle is needed to lift the vehicle. The low-floor vehicle has a small ground clearance, so a cross beam with a small height has insufficient stiffness, and a cross beam with a large height cannot be pulled out after the vehicle is lowered. SUMMARY

[0005] The present application aims to provide a vehicle body and a rubber-tyred train, and solve the technical problem of the downward force transmission path of the front end structure of the vehicle being broken by the wheel.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows:

[0007] A vehicle body comprises a roof, side walls, a chassis and end walls, the chassis comprising a front end beam, a front gull wing beam, a passenger compartment unit and a rear gull wing beam connected in sequence, characterized in that the side wall comprises a side wall front end structure, the side wall front end structure comprising a first column arranged above a wheel and a second column arranged behind the first column, the second column being connected to the chassis, a first profile arranged vertically being arranged between the first column and the second column, a second profile arranged horizontally being arranged below the first profile and the first column, one end of the second profile being embedded in the second column, and the first column and the first profile being fixedly connected to the end of the front gull wing beam above the front gull wing beam through the second profile.

[0008] Thus, in the side wall front end structure of the present application, the first column transmits load to the second column through the first profile and the second profile and is finally connected to the chassis, forming a force transmission path from the side wall front end to the rear; the first profile and the second profile are arranged above the end of the top of the front gull wing beam, forming a force transmission path to the inside of the vehicle and to the front. In this way, the side wall front end is divided into three directions of force transmission, i.e., forward, rearward and inward, and forms a space frame, solving the problem that the downward force transmission path is blocked by the wheel.

[0009] According to the embodiments of the present application, the present application can be further optimized, and the following is the technical solution formed after optimization:

[0010] Specifically, the upper part of the front gull wing beam is provided with a first connecting part connected to the second profile, and the first column and the second column are connected to the outer side of the first connecting part through the second profile.

[0011] The first connecting part above the front gull wing beam transmits the force from the first column and the first profile to the chassis inside the vehicle body, facilitating the process of transmitting the force from the first column and the first profile to the inside of the vehicle body.

[0012] Specifically, an L-shaped first connecting beam is arranged between the top of the front gull wing beam and the front end beam; the front end beam comprises an upper edge beam, a lower edge beam and a motor mounting beam; and the upper edge beam and the lower edge beam are fixedly connected to the first connecting beam through a second connecting part.

[0013] Due to the arrangement of the first connecting beam, it is more convenient for the second profile to transmit the downward force of the first column and the first profile above to the front of the chassis of the vehicle body, forming a space frame for multi-directional transmission.

[0014] Specifically, the horizontal part of the first connecting beam is connected to the front gull wing beam, and the vertical part of the first connecting beam is connected to the second connecting part.

[0015] In order to stabilize the connection of the first connecting beam and the chassis, specifically, the upper portion of the first connecting beam is provided with a first corner beam connected with the first connecting beam and the first vertical column.

[0016] Specifically, the second connecting part comprises an L-shaped second connecting beam, and the upper portion of the second connecting beam is provided with a second corner beam connected with the second connecting beam and the first connecting beam.

[0017] Specifically, the end wall comprises an inclined beam, the upper portion of the inclined beam is welded with the side wall, and the lower portion of the inclined beam is bolted with the chassis; the mounting surface below the end wall is provided with bosses for bolt fixation, and the bosses are arranged at intervals.

[0018] Specifically, the lower portion of the chassis is provided with a plurality of pads, and the pads are provided with internal threaded holes.

[0019] Based on the same inventive concept, the application further provides a rubber-tyred train comprising the vehicle body.

[0020] Compared with the prior art, the application has the following beneficial effects:

[0021] 1) The front end vertical column of the application is moved above the wheel, and no A column is arranged, so that the driver's room has a large modeling space and a good field of view; the space frame force transmission path in multiple directions is arranged between the front end vertical column and the chassis, and each force transmission path is smooth, so that the field of view of the driver's room is expanded, the structural stability of the front end of the vehicle body is increased, the force above the vehicle body is transmitted to the chassis in multiple directions, and the problem that the downward force transmission path is blocked by the wheel is solved.

[0022] 2) The low-density material is selected for the non-main bearing structure of the vehicle body, and welding is adopted between the same materials, so that the structure is simple and the weight of the vehicle body is significantly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic diagram of the vehicle body of the application;

[0024] Figure 2 is a structural schematic diagram of the side wall of the application; Figure 1 is a local enlarged view of M in FIG. 4;

[0025] Figure 3 is a local enlarged view of N in FIG. 4; Figure 1

[0026] Figure 4 is a structural schematic diagram of the rear end of the side wall of the application;

[0027] Figure 5 is a structural schematic diagram of the mounting surface below the inclined beam of the application;

[0028] Figure 6 is a structural schematic diagram of the bottom of the chassis of the vehicle body of the application;​

[0029] Figure 7 is a structural schematic diagram of the spacer plate of the present application.

[0030] In the drawings

[0031] 1 - roof; 2 - side wall; 21 - first upright column; 22 - first profile; 23 - second profile; 24 - second upright column; 3 - underframe; 31 - front end beam; 311 - upper side beam; 312 - lower side beam; 313 - motor mounting beam; 32 - front goose-shaped beam; 321 - first connecting part; 3211 - mounting hole; 322 - first connecting beam; 33 - passenger compartment unit; 34 - rear goose-shaped beam; 4 - end wall; 41 - inclined beam; 411 - boss; 5 - first corner beam; 6 - second connecting part; 61 - second connecting beam; 62 - second corner beam; 7 - spacer plate; 71 - internally threaded hole. DETAILED DESCRIPTION

[0032] The present application will be described in detail below with reference to the drawings and in conjunction with embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left", "right" appear in the following text, they only mean consistent with the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.

[0033] As Figure 1 shown, the vehicle body of the present embodiment includes a roof 1, a side wall 2, an underframe 3 and an end wall 4. The underframe 3 includes a front end beam 31, a front goose-shaped beam 32, a passenger compartment unit 33 and a rear goose-shaped beam 34 connected in sequence. The side wall 2 includes a side wall front end structure, which includes a first upright column 21 and a second upright column 24. The second upright column 24 is connected with the underframe 3. A first profile 22 arranged vertically is provided between the first upright column 21 and the second upright column 24. A second profile 23 arranged horizontally is provided below the first profile 22. One end of the second profile 23 is embedded in the second upright column 24. The first upright column 21 transmits load to the second upright column 24 through the first profile 22 and the second profile 23, and is finally connected to the underframe 3 to form a force transmission path from the front end of the side wall 2 to the rear. The first upright column 21 and the first profile 22 are fixedly connected with the distal end above the front goose-shaped beam 32 through the second profile 23.

[0034] The upper part of the front goose-shaped beam 32 is provided with a first connecting part 321 connected with the second profile 23. The first upright column 21 and the first profile 22 are connected with the outer side of the first connecting part 321 through the second profile 24.

[0035] The end 321 of the top of the front gull wing beam 32 extends forwardly a first connecting beam 322, which is L-shaped, connecting the front end beam 31 forwardly and downwardly, the first profile 22 striding over the end first connecting part 321 of the top of the front gull wing beam 32, forming a force transmission path forwardly at the front end of the side wall 2.

[0036] The top of the front gull wing beam 32 is provided with the L-shaped first connecting beam 322 between the front end beam 31; the front end beam 31 comprises an upper edge beam 311, a lower edge beam 312 and a motor mounting beam 313; the upper edge beam 311 and the lower edge beam 312 are fixedly connected with the first connecting beam 322 through a second connecting part 6. The end first connecting part 321 above the front gull wing beam forms a force transmission path laterally to the inside of the vehicle through its own body structure. In this way, the front end of the side wall 2 is formed by three separate flow directions forwardly, rearwardly, laterally and inwardly and forms a space frame, solving the problem that the downward force transmission path is blocked by the wheels.

[0037] The first corner beam 5 is further provided between the side wall 2 and the chassis 3 to further strengthen the connection. The side wall 2 and the chassis 3 are dissimilar metals and cannot be welded, so a bolted connection is used. The first corner beam 5 is provided with a waist-shaped hole at the mounting point; the front end surface of the first upright column 21 is provided with an embedded sliding groove 211 containing a threaded sliding block; the upper surface of the first connecting beam 322 is provided with a waist-shaped hole, and a mounting hole 3211 can be opened from the inside of the vehicle to put a nut. In this way, the bolted installation of the first corner beam 4, the side wall 2 and the chassis 3 can be adjusted in all directions.

[0038] The space below the first connecting beam 322 is occupied by equipment, so the first connecting beam 322 cannot be directly extended vertically to the lower edge beam 312, and no cross beam is provided between the lower edge beam 312 and the motor mounting beam 313. For this reason, the second connecting part 6 is welded between the front end beam 31 and the first connecting beam 322, the second connecting part 6 comprising an L-shaped second connecting beam 61, the upper portion of the second connecting beam 61 being provided with a second corner beam 62 connected with the second connecting beam 61 and the first connecting beam 322; the second corner beam 62 is a triangular box structure; the front end beam 31 below is connected with the first connecting beam 322 through the second connecting beam 61, and the second connecting beam 61 is also an L-shaped box structure.

[0039] The end wall 4 is provided with a diagonal beam 41, which is welded with the side wall 2 at the top and bolted with the chassis 3 at the bottom. Due to manufacturing deviation, the mounting surface of the diagonal beam at the bottom is not parallel to the plane of the chassis in each direction. Therefore, the embodiment provides a wedge-shaped mounting surface adjustment method: the mounting surface is provided as an intermittent surface, and the boss 411 is arranged only at the bolt mounting position, so that the wedge angle has a small change in height value in a small range, and it is convenient to place adjustment pads with different thicknesses at each bolt mounting point. The bosses 411 are arranged at intervals, and mounting holes are arranged on the bosses 411.

[0040] The lower side plane of the chassis 3 is provided with two sets of eight vehicle jacking pads 7, i.e. one vehicle jacking pad 7 is arranged in front of and behind each wheel, and four vehicle jacking pads 7 close to the door are arranged as one set, and four vehicle jacking pads 7 away from the door are arranged as another set. The vehicle jacking pad 7 has a large thickness to ensure sufficient rigidity, the lower plane of the vehicle jacking pad 7 is provided with a mesh anti-skid pattern, and the pad 7 is provided with an internally threaded hole 71. The internal thread can be used to connect a cross beam or a vehicle jacking pad for lifting to improve the safety of vehicle jacking and lifting. When the vehicle is lifted, the vehicle is raised by a jack under one set of vehicle jacking pads 7, the cross beam passes through the side bottom of the vehicle and supports the vehicle at the position of the other set of vehicle jacking pads 7, the lifting cable lifts the vehicle at both ends of the cross beam, and the vehicle is jacked up again before landing, and the cross beam is separated after the vehicle lands on the jack, the height of the jack is lowered, and the vehicle can land safely.

[0041] The front end column of the present application is moved above the wheel, and there is no A column, the driver's room has large modeling space and good view; the space frame force transmission path of multiple directions is arranged between the front end column and the chassis, each force transmission path is smooth, the view of the driver's room is enlarged, and the structural stability of the front end of the vehicle body is also increased, so that the force above the vehicle body is transmitted to the chassis in multiple directions, and the problem that the downward force transmission path is blocked by the wheel is solved.

[0042] The content illustrated in the above embodiments should be understood as that the embodiments are only used to more clearly illustrate the present application, and are not used to limit the scope of the present application. After reading the present application, various equivalent modifications of the present application made by those skilled in the art all fall within the scope defined by the appended claims.

Claims

1. A vehicle body comprising a roof (1), side walls (2), a chassis (3) and end walls (4), wherein the chassis (3) comprises a front end beam (31), a front goose-shaped beam (32), a passenger compartment unit (33) and a rear goose-shaped beam (34) connected in sequence, characterized in that: The side wall (2) includes a side wall front end structure, which includes a first column (21) arranged above the wheel and a second column (24) located behind the first column (21), the second column (24) being connected to the chassis (3), a vertically arranged first profile (22) being arranged between the first column (21) and the second column (24); a horizontally arranged second profile (23) being arranged below the first column (21) and the first profile (22), one end of the second profile (23) being embedded in the second column (24); the first column (21) and the first profile (22) being fixedly connected to the end above the front goose-shaped beam (32) via the second profile (23).

2. The vehicle body according to claim 1, wherein: A first connecting portion (321) connected to the second profile (23) is provided on the upper portion of the front goose-shaped beam (32); the first column (21) and the first profile (22) are connected to the outer side of the first connecting portion (321) via the second profile (23).

3. The vehicle body according to claim 1, wherein: An L-shaped first connecting beam (322) is provided between the top of the front goose-shaped beam (32) and the front end beam (31); the front end beam (31) includes an upper side beam (311), a lower side beam (312) and a motor mounting beam (313); the upper side beam (311) and the lower side beam (312) are fixedly connected to the first connecting beam (322) via a second connecting portion (6).

4. The vehicle body according to claim 3, wherein: The horizontal portion of the first connecting beam (322) is connected to the upper portion of the front goose-shaped beam (32), and the vertical portion of the first connecting beam (322) is connected to the second connecting portion (6); a mounting hole (3211) is provided on the inner side of the horizontal portion of the first connecting beam (322).

5. The vehicle body according to claim 3, characterized in that: A first angle beam (5) connecting the first connecting beam (322) and the first column (21) is provided above the first connecting beam (322).

6. The vehicle body according to claim 3, wherein: The second connecting portion (6) comprises an L-shaped second connecting beam (61), and a second angle beam (62) connected to the second connecting beam (61) and the first connecting beam (322) is provided above the second connecting beam (61).

7. The vehicle body according to claim 1, wherein: The end wall comprises an inclined beam (41), the upper portion of the inclined beam (41) being welded to the side wall (2) and the lower portion being bolted to the base frame (3); a boss (411) for bolt fixing is provided on the mounting surface below the end wall (4), the bosses (411) being arranged at intervals, and a mounting hole is provided on the boss (411).

8. The vehicle body according to claim 1, wherein: A plurality of pads (7) are provided below the base frame (3), wherein the pads (7) are provided with internal threaded holes (71), and the surfaces of the pads (7) are provided with anti-slip grooves.

9. A rubber-tyred train, characterized by: Comprising a vehicle body as described in any one of claims 1-8.

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