Aluminum alloy city C-shaped vehicle cab structure

Abstract

The invention provides an aluminum alloy city C-shaped tramcar cab structure which is arranged at one end of a car body and comprises an outer aluminum alloy skin and an inner aluminum alloy framework. The external aluminum alloy skin and the internal aluminum alloy framework are connected in a welding mode. The external aluminum alloy skin comprises a front window skin, a car roof skin and a side wall skin which are formed by processing aluminum alloy sheets; the car roof skin is arranged above a cab, the front window skin is located at the front end of the cab, the side wall skin is distributed on the two sides of the cab and forms an external aluminum alloy skin in a welding mode, the whole skin is in a streamline shape, and wind resistance can be well reduced. The internal aluminum alloy framework comprises a front wall assembly, an A column assembly, a longitudinal beam assembly, a cross beam, a stand column, a door frame assembly, a reinforcing rib and a rear ring beam assembly. On the basis of meeting the performance requirements of urban vehicles, the structural strength of the cab is improved, and the air resistance is reduced due to the overall streamline design.

Description

Technical Field

[0001] The invention belongs to the technical field of rail vehicle manufacturing, and in particular relates to an aluminum alloy urban C-type vehicle driver's cab structure. Background Art

[0002] With the rapid development of China's urban agglomerations and the urgent needs of urbanization, urban rail transit has become an important part of the development of China's urban rail transit. As the main component of urban rail transit, the cab structure needs to take into account many performance requirements such as strength and aesthetics. At present, the trams on the market have low speed, weak structural strength, and large wind resistance. The cab structure is difficult to meet the development needs of urban rail transit at this stage. Therefore, it is necessary to design a new type of urban rail transit cab structure to meet the structural strength requirements to the maximum extent, and the streamlined design reduces wind resistance. Summary of the invention

[0003] The present invention aims to solve the problems of low strength and high wind resistance of urban trams, thereby providing an aluminum alloy urban C-type vehicle cab structure with a reasonable skeleton structure and a well-streamlined skin, which can maximize the structural strength and drag reduction performance of the cab.

[0004] To achieve the above-mentioned invention object, the present invention provides an aluminum alloy urban C-type tram cab structure, which is arranged at one end of the car body and includes an external aluminum alloy skin and an internal aluminum alloy frame; the external aluminum alloy skin and the internal aluminum alloy frame are connected by welding; the external aluminum alloy skin includes a front window skin, a roof skin, and a side wall skin processed from aluminum alloy thin plates; the roof skin is arranged above the driver's cab, the front window skin is located at the front end of the driver's cab, and the side wall skins are distributed on both sides of the driver's cab, and the external aluminum alloy skin is formed by welding, and the overall skin is streamlined, which can better reduce wind resistance; the internal aluminum alloy frame includes a front wall component, an A-pillar component, a longitudinal beam component, a cross beam, a column, a door frame component, a reinforcing rib, and a rear ring beam component;

[0005] The front wall component is located at the front of the driver's cab and is perpendicular to the floor surface; the A-pillar component is located above the side of the driver's cab, and the longitudinal beam component is located below the side of the driver's cab, and is fixedly connected to the front wall component respectively; the column is located below the driver's cab and is fixedly connected to the longitudinal beam component; the door frame component is located on both sides of the driver's cab, and is fixedly connected to multiple longitudinal beams in front; the rear ring beam component is located behind the driver's cab, perpendicular to the bottom plate surface, and is fixedly connected to the A-pillar component and multiple cross beams; the multiple cross beams are located between the door frame component and the rear ring beam component, and are fixedly connected to the door frame component and the rear ring beam component; the reinforcing ribs (10) are distributed on the top of the driver's cab and are fixedly connected to the surrounding components. Under the premise of increasing the speed, the structural strength of the aluminum alloy urban C-type vehicle driver's cab structure can effectively protect the internal structure and equipment of the front of the vehicle, and provide good aerodynamic performance for the train, while providing an installation environment for installing important components such as opening and closing mechanisms, front glass, and wipers.

[0006] Furthermore, the front wall comprises an upper connecting plate, an L-shaped connecting plate, a left connecting plate, a right connecting plate, a mounting seat, and a blocking plate. The upper connecting plate, the L-shaped connecting plate, the left connecting plate, and the right connecting plate are fixedly connected to form a front facade of the driver's cab structure. The outer shapes of the upper connecting plate, the L-shaped connecting plate, the left connecting plate, and the right connecting plate are consistent with the arc shape of the driver's cab skin, and the mounting seat and the blocking plate are fixedly connected to the L-shaped connecting plate.

[0007] Furthermore, the longitudinal beam composition includes a first-end longitudinal beam and a second-end longitudinal beam, and the first-end longitudinal beam and the second-end longitudinal beam are fixedly connected to form the longitudinal beam composition.

[0008] Furthermore, the door frame composition includes an upper door frame, a left door column, a right door column, and an upper door frame, and the upper door frame, the left door column, the right door column, and the upper door frame are fixedly connected to form the door frame composition.

[0009] Furthermore, the rear ring beam comprises a rear cross beam and a rear vertical beam, which are fixedly connected to form a rear ring beam, and the outer sides of the rear cross beam and the rear vertical beam are consistent with the arc shape of the driver's cab skin.

[0010] Compared with the existing overall structure, the aluminum alloy urban C-type vehicle cab structure of the present invention not only meets the performance requirements of urban vehicles, but also increases the strength of the cab structure, and has an overall streamlined design to reduce air resistance. This cab structure can be directly used for most projects, has strong adaptability, and meets the requirements of static strength, fatigue strength, and aerodynamic calculations. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the driver's cab end of a city C-type vehicle;

[0012] Figure 2This is a schematic diagram of the driver's cab structure of a city C-type vehicle outside the vehicle;

[0013] Figure 3 This is a schematic diagram of the driver's cab structure of a city-area C-type vehicle inside the vehicle;

[0014] Figure 4 This is a schematic diagram of the aluminum alloy skin of the cab structure of a city-area C-type vehicle;

[0015] Figure 5 This is a schematic diagram of the aluminum alloy frame of the cab structure of a city-area C-type vehicle;

[0016] Figure 6 This is a schematic diagram of the front wall structure of the driver's cab of a city-area C-type vehicle;

[0017] Figure 7 This is a schematic diagram of the longitudinal beam structure of the driver's cab of a city C-type vehicle;

[0018] Figure 8 This is a schematic diagram of the door frame structure of the driver's cab of a city-area C-type vehicle;

[0019] Fig. 9 This is a schematic diagram of the rear ring beam structure of the C-type urban vehicle cab;

[0020] Among them: 1. front window skin; 2. roof skin; 3. side wall skin; 4. front wall composition; 5. A-pillar; 6. longitudinal beam composition; 7. cross beam; 8. pillar; 9. door frame composition; 10. reinforcement rib; 11. rear ring beam composition;

[0021] 401, upper connecting plate; 402, L-shaped connecting plate; 403, left connecting plate; 404, right connecting plate; 405, mounting seat; 406, blocking plate;

[0022] 601, first end longitudinal beam; 602, second end longitudinal beam;

[0023] 901, upper door frame; 902, left door pillar; 903, right door pillar; 904, lower door frame;

[0024] 1101, rear cross beam; 1102, rear vertical beam. 112, sliding block DETAILED DESCRIPTION

[0025] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of the driver's cab structure of an aluminum alloy urban C-type vehicle of the present invention in conjunction with the accompanying drawings.

[0026] like Figure 1 As shown in the structure, the present application provides an aluminum alloy urban C-type vehicle cab structure, through Figure 1 It can be seen that the driver's cab structure of the aluminum alloy urban C-type vehicle is arranged at one end of the vehicle body. Figure 2, Figure 3 As shown in the structure, the cab structure of the aluminum alloy urban C-type vehicle includes an external aluminum alloy skin and an internal aluminum alloy frame, which are spliced ​​together with the vehicle body as a whole, ensuring the strength and stability of the cab structure. The aluminum alloy frame and the aluminum alloy skin are welded inside the cab, and the welding position is intermittent welding. Sealant is applied to the intermittent welds to ensure the sealing of the cab.

[0027] like Figure 4 As shown in the structure, the aluminum alloy skin is a 4mm aluminum alloy sheet formed by superplastic process. The front window skin 1, the roof skin 2, and a side wall skin 3 on each side are formed. The roof skin 2 is arranged above the driver's cab, the front window skin 1 is located at the front end of the driver's cab, and the side wall skins 3 are distributed on both sides of the driver's cab. The external aluminum alloy skin is formed by welding. The overall skin is streamlined. The overall skin shape is consistent with the arc shape of the driver's cab. After overall welding, it has a good sealing effect. There are only four skins, small welding deformation, smooth surface of the driver's cab structure, and streamlined design. It can effectively reduce wind resistance when the urban vehicle runs at high speed. The aluminum alloy skin can provide interfaces for wipers, roof lights, side windows, etc.

[0028] like Figure 5 As shown in the structure, the aluminum alloy skeleton includes a front wall component 4, an A-pillar 5, a longitudinal beam component 6, a cross beam 7, a column 8, a door frame component 9, a reinforcing rib 10, and a rear ring beam component 11. The front end of an A-pillar 5 on each side is welded to the front wall component 4, and the rear end is welded to the rear ring beam component 11. The front end of a longitudinal beam component 6 on each side is welded to the front wall component 4, and the rear end is welded to the door frame component 9. The front end of a door frame component 9 on each side is welded to the longitudinal beam component 6. There are three cross beams 7 with a width of 100 formed by bending 5mm aluminum alloy plates between the door frame component 9 and the rear ring beam component 11. The front ends of the three cross beams 7 are welded to the door frame component 9, and the rear ends are welded to the rear ring beam component 11. There are three columns 8 on each side welded below the longitudinal beam component 6. The reinforcing ribs 10 are distributed on the top of the driver's cab and are fixedly connected to the surrounding components.

[0029] like Figure 6As shown in the structure, the front wall component 4 is formed by welding the upper connecting plate 401, L-shaped connecting plate 402, left connecting plate 403, right connecting plate 404, mounting seat 405, and plugging plate 406 after cutting and forming of 15mm aluminum alloy plate. The upper connecting plate 401, L-shaped connecting plate 402, left connecting plate 403, and right connecting plate 404 form the front facade of the driver's cab structure. The outer contour is consistent with the arc of the aluminum alloy skin, which is conducive to protecting the sealing of the driver's cab structure. The surface of the front wall component 4 has a circular hole to provide an interface for the installation of the opening and closing mechanism. The mounting seat 405 is welded on the plane of the L-shaped connecting plate 402 to provide an interface for the installation of the wiper, ensuring the stability, reliability and flatness of the installation of the wiper. The plugging plate 406 is located between the L-shaped connecting plate 402 and the mounting seat 405, and the L-shaped connecting plate 402 and the mounting seat 405 are fixedly connected together, thereby improving the overall structural strength of the mounting seat 405.

[0030] like Figure 7 As shown in the structure, the A-pillar 5, the longitudinal beam component 6, and the column 8 are all stamped from a special shaped profile with a wall thickness of 8 mm. The interior of the profile is a hollow structure, which realizes a lightweight design while ensuring strength. The shape of a single component is consistent with the arc shape of the driver's cab skin after machining on a CNC lathe and stamping. The longitudinal beam component 6 is spliced ​​from a first-end longitudinal beam 601 and a second-end longitudinal beam 602. The A-pillar 5 and the longitudinal beam component 6 penetrate the driver's cab while ensuring that the shape is consistent with the arc shape of the driver's cab skin, and bear most of the horizontal force of the driver's cab structure.

[0031] like Figure 8 As shown in the structure, the door frame component 9 is formed by welding the upper door frame 901, the left door column 902, the right door column 903, and the lower door frame 904 formed by 50mm aluminum alloy plate processed by CNC lathe. This splicing structure reduces the cost of forming a whole large aluminum alloy plate while ensuring the strength of the door frame structure.

[0032] like Fig. 9 As shown in the structure, the rear ring beam component 11 is composed of a rear cross beam 1101 formed by stamping and bending a "U"-shaped aluminum profile, and a rear vertical beam 1102 on each side. It supports the overall cab structure and plays a role in connecting the cab and the car body. The shape is consistent with the arc shape of the cab skin.

Claims

1. An aluminum alloy urban C-type tram cab structure, arranged at one end of the vehicle body, characterized in that: include: External aluminum alloy skin and internal aluminum alloy frame; the external aluminum alloy skin and the internal aluminum alloy frame are connected by welding; The external aluminum alloy skin comprises a front window skin (1), a roof skin (2), and a side wall skin (3) which are processed from aluminum alloy thin plates; the roof skin (2) is arranged above the driver's cab, the front window skin (1) is located at the front end of the driver's cab, and the side wall skin (3) is distributed on both sides of the driver's cab, and the external aluminum alloy skin is formed by welding, and the overall skin is streamlined; The internal aluminum alloy frame comprises a front wall component (4), an A-pillar (5), a longitudinal beam component (6), a cross beam (7), a column (8), a door frame component (9), a reinforcing rib (10), and a rear ring beam component (11); the front wall component (4) is located at the front of the driver's cab, perpendicular to the floor surface, and its outer shape curve is consistent with the arc of the driver's cab, and is composed of a plurality of connecting plates; the A-pillar component (5) is located at the upper side of the driver's cab, and the longitudinal beam component (6) is located at the lower side of the driver's cab, and is respectively fixedly connected to the front wall component (4); the column (8) is located at the driver's cab. Below the engine room, it is fixedly connected to the longitudinal beam component (6); the door frame component (9) is located on both sides of the driver's room and is fixedly connected to the longitudinal beam component (6) at the front; the rear ring beam component (11) is located behind the driver's room, perpendicular to the bottom plate surface, and is fixedly connected to the A-pillar (5) and multiple cross beams (7); the multiple cross beams (7) are located between the door frame component (9) and the rear ring beam component (11), and are fixedly connected to the door frame component (9) and the rear ring beam component (11); the reinforcing ribs (10) are distributed on the top of the driver's room and are fixedly connected to the surrounding components.

2. The aluminum alloy urban C-type vehicle cab structure according to claim 1 is characterized by: The front wall component (4) comprises an upper connecting plate (401), an L-shaped connecting plate (402), a left connecting plate (403), a right connecting plate (404), a mounting seat (405), and a blocking plate (406); the upper connecting plate (401), the L-shaped connecting plate (402), the left connecting plate (403), and the right connecting plate (404) are fixedly connected to form a front facade of the driver's cab structure; the outer arcs of the upper connecting plate (401), the L-shaped connecting plate (402), the left connecting plate (403), and the right connecting plate (404) are consistent with the arc of the driver's cab skin; the mounting seat (405) and the blocking plate (406) are fixedly connected to the L-shaped connecting plate (402).

3. The aluminum alloy urban C-type vehicle cab structure according to claim 1 is characterized by: The longitudinal beam assembly (6) comprises a first-end longitudinal beam (601) and a second-end longitudinal beam (602), and the first-end longitudinal beam (601) and the second-end longitudinal beam (602) are fixedly connected to form the longitudinal beam assembly (6).

4. The aluminum alloy urban C-type vehicle cab structure according to claim 1 is characterized by: The door frame component (9) comprises an upper door frame (901), a left door column (902), a right door column (903), and a lower door frame (904); the upper door frame (901), the left door column (902), the right door column (903), and the lower door frame (904) are fixedly connected to form the door frame component (9).

5. The aluminum alloy urban C-type vehicle cab structure according to claim 1 is characterized by: The rear ring beam component (11) comprises a rear cross beam (1101) and a rear vertical beam (1102). The rear cross beam (1101) and the rear vertical beam (1102) are fixedly connected to form the rear ring beam component (11). The outer arcs of the rear cross beam (1101) and the rear vertical beam (1102) are consistent with the arc of the driver's cab skin.

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