A full profile chassis front end structure

Abstract

The present invention provides a front end structure of a full-profile chassis, including: an anti-climber interface profile portion, an end beam profile portion, a coupler interface profile portion, a deflector interface profile portion and a traction beam profile portion; the anti-climber interface profile portion is arranged on the front side of the end beam profile portion, and is plug-connected with the end beam profile portion; the end beam profile portion and the coupler interface profile portion are arranged side by side in a transverse manner, and the side of the end beam profile portion is plug-connected with the side of the coupler interface profile portion; the deflector interface profile portion is arranged on the lower back side of the end beam profile portion and / or the coupler interface profile portion; the traction beam profile portion is arranged on the back side of the coupler interface profile portion, and is plug-connected with the coupler interface profile portion. The front end structure of the full-profile chassis provided by the embodiment of the present invention can achieve rapid assembly, less assembly time and simple welding process. The anti-climber, coupler and deflector can be installed in an integrated manner, and can be installed adaptively, and can meet the requirements of vehicle bodies of different strength grades.

Description

Technical Field

[0001] The present invention relates to the technical field of rail vehicles, and in particular to a full-profile underframe front end structure. Background Art

[0002] The front end of the chassis is a key process in the manufacture of aluminum alloy car bodies. It plays a role in bearing the weight and pulling the car body and is the top priority of the manufacturing process. Therefore, the main structure requirements for the front end of the chassis are extremely strict.

[0003] The front end of a traditional chassis is generally made of welded plates, or a mixed welded structure of plates and profiles. The welding process is complicated and the assembly takes a long time. Summary of the invention

[0004] In order to solve the above problems, an object of the embodiments of the present invention is to provide a full-profile chassis front end structure.

[0005] The embodiment of the present invention provides a full profile chassis front end structure, including: an anti-climbing device interface profile portion, an end beam profile portion, a coupler interface profile portion, a snowplow interface profile portion and a traction beam profile portion;

[0006] The anti-climbing device interface profile portion is arranged on the front side of the end beam profile portion and is plug-connected with the end beam profile portion;

[0007] The end beam profile part and the coupler interface profile part are arranged side by side in a transverse direction, and the side part of the end beam profile part is plug-connected with the side part of the coupler interface profile part;

[0008] The obstacle remover interface profile portion is arranged on the lower back side of the end beam profile portion and / or the coupler interface profile portion;

[0009] The traction beam profile portion is arranged on the back side of the coupler interface profile portion and is plug-connected with the coupler interface profile portion.

[0010] In a possible implementation, the anti-climber interface profile portion includes a first anti-climber interface profile and a second anti-climber interface profile, and the first anti-climber interface profile is laterally plug-connected to the second anti-climber interface profile;

[0011] The first anti-climber interface profile and the second anti-climber interface profile are both provided with longitudinal anti-climber interface plug-in ends, and the anti-climber interface plug-in ends are plug-connected with the end beam profile portion.

[0012] In a possible implementation, the end beam profile portion includes a first end beam profile and a second end beam profile, and the first end beam profile is transversely plug-connected to the second end beam profile;

[0013] The front sides of the first end beam profile and the second end beam profile are both provided with longitudinal end beam positive plug-in ends, and the end beam positive plug-in ends are plug-connected with the anti-climber interface profile portion;

[0014] A transverse end beam side plug-in end is provided on the side of the second end beam profile, and the end beam side plug-in end is plug-connected with the side of the coupler interface profile.

[0015] In a possible implementation, the end beam profile portion further includes an end beam back profile disposed longitudinally;

[0016] The end beam back profile is arranged on the back side of the second end beam profile, and the lower end surface of the end beam back profile is connected to the obstacle avoider interface profile part, and the upper end surface of the end beam back profile and the upper end surface of the traction beam profile part are both used to connect to the middle floor of the vehicle.

[0017] In a possible implementation, the coupler interface profile portion includes a plurality of coupler interface profiles, the plurality of coupler interface profiles are arranged side by side transversely, and two adjacent coupler interface profiles are plug-connected; the coupler interface profiles on both sides are plug-connected with the end beam profile portion;

[0018] The back sides of two of the coupler interface profiles are provided with longitudinal coupler interface back plug-in ends, and the coupler interface back plug-in ends are plug-connected with the traction beam profile portion.

[0019] In a possible implementation, the traction beam profile portion includes a traction beam body profile and a traction beam tail profile;

[0020] The traction beam body profile is arranged longitudinally, and one end of the traction beam body profile is plug-connected with the back side of the coupler interface profile portion;

[0021] The tail section of the traction beam is arranged transversely and connected to the other end of the main section of the traction beam.

[0022] In a possible implementation, the traction beam tail profile is provided with a tail wing with a gradually increasing lateral width.

[0023] In a possible implementation, the traction beam body profile includes an upper traction beam profile and a lower traction beam profile; the upper traction beam profile and the lower traction beam profile are arranged up and down and plug-connected;

[0024] The lower end surface of the upper profile of the traction beam is a concave arc surface extending upward, and the shape of the lower profile of the traction beam matches the concave arc surface.

[0025] In a possible implementation, the profile cross-sections of the end beam profile portion and the coupler interface profile portion are in the shape of a closed rectangular cavity.

[0026] In a possible implementation, an anti-climber mounting hole is provided on the front side of the anti-climber interface profile portion;

[0027] The front side of the coupler interface profile portion is provided with a coupler mounting hole;

[0028] The lower end surface of the obstacle remover interface profile portion is provided with a middle end mounting hole of the obstacle remover, the lower front end surface of the anti-climber interface profile portion is provided with a front end mounting hole of the obstacle remover, and the lower end surface of the traction beam profile portion is provided with a rear end mounting hole of the obstacle remover.

[0029] In the solution provided in the embodiment of the present invention, each component is a profile structure, which is light in weight and easy to process; the profiles are connected by plug-in connection, which can achieve rapid assembly, less assembly time, and only the plug-in parts need to be welded, and the welding process is simple. The front end structure of the chassis provides a centralized installation interface for the anti-climber, hook and obstacle remover at the front end of the vehicle, which can achieve integrated installation and reduce the additional fixed structure required for the installation of each device; and the front end structure of the chassis modularizes the profiles, which can achieve adaptive installation and meet the requirements of vehicle bodies with different strength grades. At the same time, the front end structure of the chassis can also realize full profile force, and the two-level transmission path of the end beam back profile and the traction beam tail profile is added as a whole, and the force bearing capacity is stronger; and the traction beam tail profile is arranged horizontally, which realizes uniform force distribution and improves the longitudinal bearing capacity.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A first overall structural schematic diagram of a full profile chassis front end structure provided by an embodiment of the present invention is shown;

[0033] Figure 2 A second overall structural schematic diagram of the full profile chassis front end structure provided by an embodiment of the present invention is shown;

[0034] Figure 3 A schematic diagram of the structure of the interface profile portion of the anti-climber provided in an embodiment of the present invention is shown;

[0035] Figure 4A schematic diagram showing the structure of the anti-climber interface profile part and the end beam profile part provided in an embodiment of the present invention is shown;

[0036] Figure 5 It shows a schematic structural diagram of the front end portion of the full profile chassis front end structure provided by an embodiment of the present invention;

[0037] Figure 6 A schematic diagram of a top view of the front end structure of a full profile chassis provided by an embodiment of the present invention is shown;

[0038] Figure 7 A schematic diagram of the side structure of the front end structure of the full profile chassis provided by an embodiment of the present invention is shown;

[0039] Figure 8 Shows Figure 7 AA section view in;

[0040] Fig. 9 It shows a front structural schematic diagram of the installed front end structure of the full profile chassis provided by an embodiment of the present invention;

[0041] Fig.10 A schematic diagram of the back structure of the front end structure of the full profile chassis after installation provided by an embodiment of the present invention is shown.

[0042] icon:

[0043] 10-anti-climbing device interface profile part, 11-first anti-climbing device interface profile, 12-second anti-climbing device interface profile, 13-anti-climbing device interface plug-in end, 101-anti-climbing device installation hole, 102-anti-climbing device crushing tube retreat hole, 20-end beam profile part, 21-first end beam profile, 22-second end beam profile, 23-end beam back profile, 24-end beam positive plug-in end, 25-end beam side plug-in end, 30-coupler interface profile part, 31-coupler interface side profile , 32-middle profile of coupler interface, 33-back plug-in terminal of coupler interface, 301-coupler mounting hole, 40-cowbreaker interface profile, 401-middle mounting hole of cowbreaker, 402-front mounting hole of cowbreaker, 403-rear mounting hole of cowbreaker, 51-main profile of traction beam, 511-upper profile of traction beam, 512-lower profile of traction beam, 52-rear profile of traction beam, 521-tail wing, 100-middle floor, 200-side beam. DETAILED DESCRIPTION

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] The embodiment of the present invention provides a full profile chassis front end structure, see Figure 1 and Figure 2 As shown, it includes: an anti-climber interface profile portion 10, an end beam profile portion 20, a coupler interface profile portion 30, a obstacle remover interface profile portion 40 and a traction beam profile portion.

[0048] The anti-climber interface profile part 10 is arranged on the front of the end beam profile part 20 and plug-connected with the end beam profile part 20. The end beam profile part 20 and the coupler interface profile part 30 are arranged side by side in a transverse manner, and the side of the end beam profile part 20 is plug-connected with the side of the coupler interface profile part 30. The obstacle remover interface profile part 40 is arranged on the lower side of the back of the end beam profile part 20 and / or the coupler interface profile part 30. The traction beam profile part is arranged on the back of the coupler interface profile part 30 and plug-connected with the coupler interface profile part 30.

[0049] In the embodiment of the present invention, the anti-climber interface profile part 10 is used to provide an interface for installing the anti-climber; correspondingly, the coupler interface profile part 30 can provide an interface for installing the coupler, and the snowcat interface profile part 40 can provide an interface for installing the snowcat, so that the anti-climber, the coupler, and the snowcat can all be installed on the front end structure of the chassis to achieve centralized installation. At the same time, the front end structure of the chassis modularizes each profile, and the profiles can be connected by plug-in. According to the requirements of the vehicle or based on the position of the installation interface of the anti-climber, the coupler, and the snowcat, the profile can be quickly adjusted or replaced to achieve adaptive installation and meet the requirements of vehicle bodies with different strength levels.

[0050] In this embodiment, the end beam profile part 20 and the coupler interface profile part 30 arranged side by side in a transverse manner can serve as the base of the front end structure of the chassis, the anti-climbing device interface profile part 10 is arranged on the front side of the end beam profile part 20, and the traction beam profile part is arranged on the back side of the coupler interface profile part 30. Since the front end of the vehicle generally needs to be provided with anti-climbing devices on both sides, such as Figure 1 As shown, two anti-climber interface profiles 10 can be provided at this time, and are respectively provided on the left and right sides of the front end structure of the chassis. Accordingly, two end beam profiles 20 need to be provided. As shown in the figure, the two end beam profiles 20 are respectively provided on both sides of the coupler interface profile 30. At the same time, the traction beam profile is provided on the back side of the coupler interface profile 30 to transmit longitudinal force. The obstacle remover interface profile 40 is provided on the lower back side of the end beam profile 20 and / or the coupler interface profile 30 to better fix and install the obstacle remover; Figure 1 and Figure 2 In the figure, it is taken as an example that the back sides of the end beam profile part 20 and the coupler interface profile part 30 are both provided with a snow remover interface profile part 40 .

[0051] The embodiment of the present invention provides a full-profile chassis front-end structure, in which each component is a profile structure, light in weight, and easy to process; each profile is connected by plug-in connection, which can achieve rapid assembly, less assembly time, and only the plug-in parts need to be welded, and the welding process is simple. The chassis front-end structure provides a centralized installation interface for the anti-climber, hook and obstacle remover at the front end of the vehicle, which can achieve integrated installation; and the chassis front-end structure modularizes the profile, which can achieve adaptive installation and meet the requirements of vehicle bodies of different strength levels.

[0052] Based on the above embodiments, see Figures 1 to 3 As shown, the anti-climbing device interface profile part 10 includes a first anti-climbing device interface profile 11 and a second anti-climbing device interface profile 12, and the first anti-climbing device interface profile 11 is transversely plug-connected with the second anti-climbing device interface profile 12. The first anti-climbing device interface profile 11 and the second anti-climbing device interface profile 12 are both provided with a longitudinal anti-climbing device interface plug-in end 13, and the anti-climbing device interface plug-in end 13 is plug-connected with the end beam profile part 20.

[0053] In the embodiment of the present invention, in order to better fix the anti-climbing device interface profile portion 10, both sides of the anti-climbing device interface profile portion 10 need to be fixed on the end beam profile portion 20, that is, plug-connected with the end beam profile portion 20; in this embodiment, in order to simplify the process of making the anti-climbing device interface profile portion 10, the anti-climbing device interface profile portion 10 is divided into a first anti-climbing device interface profile 11 and a second anti-climbing device interface profile 12 that can be plug-connected laterally, and the anti-climbing device interface profile portion 10 can be formed by two anti-climbing device interface profiles (i.e., the first anti-climbing device interface profile 11 and the second anti-climbing device interface profile 12). At the same time, Figure 3 As shown, both anti-climber interface profiles are provided with longitudinal anti-climber interface plug-in ends 13 , so that the anti-climber interface profiles can be plugged onto the end beam profile part 20 through the anti-climber interface plug-in ends 13 .

[0054] It should be noted that the "longitudinal direction" in this embodiment refers to the direction of the length of the vehicle. Figures 3 to 6 The left and right directions in the text are both “longitudinal”; correspondingly, “horizontal” refers to a direction perpendicular to the “longitudinal”. Figures 3 to 6 The up and down directions are both "horizontal".

[0055] Optional, see Figure 4 As shown, the end beam profile part 20 includes a first end beam profile 21 and a second end beam profile 22 , and the first end beam profile 21 and the second end beam profile 22 are transversely plug-connected.

[0056] Specifically, Figure 4 As shown, the front sides of the first end beam profile 21 and the second end beam profile 22 are provided with longitudinal end beam positive plug-in ends 24, which are plug-connected with the anti-climber interface profile portion 10; the side of the second end beam profile 22 is provided with transverse end beam side plug-in ends 25, which are plug-connected with the side of the coupler interface profile portion 30.

[0057] In the embodiment of the present invention, similar to the anti-climbing device interface profile part 10, the end beam profile part 20 can also be divided into a first end beam profile 21 and a second end beam profile 22 that can be plugged in laterally, and the front sides of the two end beam profiles (i.e., the first end beam profile 21 and the second end beam profile 22) are both provided with an end beam positive plug-in end 24, and the end beam positive plug-in end 24 can be plug-connected with the anti-climbing device interface profile part 10. For details, see Figure 4 As shown, the positive plug-in end 24 of the end beam is plug-connected with the anti-climber interface plug-in end 13 , thereby realizing the plug-in connection between the end beam profile part 20 and the anti-climber interface profile part 10 .

[0058] In addition, the second end beam profile 22 of the present embodiment is plug-connected to the side of the coupler interface profile portion 30. Figure 4As shown, a transverse end beam side plug-in end 25 is provided on the side of the second end beam profile 22 , and a plug-in connection between the end beam profile part 20 and the coupler interface profile part 30 is realized based on the end beam side plug-in end 25 .

[0059] Optional, see Figure 5 As shown, the coupler interface profile part 30 includes a plurality of coupler interface profiles, which are arranged side by side in a transverse manner, and two adjacent coupler interface profiles are plug-connected; the coupler interface profiles on both sides are plug-connected with the end beam profile part 20. In addition, the backs of two of the coupler interface profiles are provided with longitudinal coupler interface back plug-in ends 33, and the coupler interface back plug-in ends 33 are plug-connected with the traction beam profile part.

[0060] In the embodiment of the present invention, the coupler interface profile part 30 is composed of a plurality of modular coupler interface profiles. By adjusting the number of coupler interface profiles or replacing coupler interface profiles of different transverse lengths, the length of the coupler interface profile part 30 can be adjusted, so that the front end structure of the chassis can be adapted to the installation of anti-climbing devices at different positions. In addition, the coupler interface profile part 30 is divided into a plurality of coupler interface profiles, which can simplify the processing technology of the coupler interface profiles and facilitate processing. Figure 5 In the figure, it is taken as an example that the coupler interface profile part 30 includes three coupler interface profiles.

[0061] See also Figure 5 As shown, the coupler interface profile part 30 includes a middle coupler interface profile 32 located in the middle and two side coupler interface profiles 31 located on both sides. The three coupler interface profiles (i.e., one middle coupler interface profile 32 and two side coupler interface profiles 31) are arranged side by side in a transverse manner and plug-connected; and the two side coupler interface profiles 31 on both sides are also plug-connected with the end beam profile part 20, as shown in FIG. Figure 5 As shown, the coupler interface side profile 31 is plug-connected with the end beam side plug-in end 25. At the same time, the backs of the two coupler interface side profiles 31 are provided with longitudinal coupler interface back plug-in ends 33, so that the traction beam profile part can be plugged into the coupler interface back plug-in ends 33, thereby realizing the plug-in connection between the coupler interface profile part 30 and the traction beam profile part.

[0062] Based on the above embodiments, see Figure 6 As shown, the traction beam profile portion includes a traction beam body profile 51 and a traction beam tail profile 52; Figure 6 In the figure, two traction beam body profiles 51 and one traction beam tail profile 52 are used as an example. The traction beam body profile 51 is arranged longitudinally, and one end of the traction beam body profile 51 is plug-connected with the back of the coupler interface profile part 30; the traction beam tail profile 52 is arranged transversely and connected with the other end of the traction beam body profile 51. Specifically, the traction beam body profile 51 and the traction beam tail profile 52 can be T-shaped connected.

[0063] In the embodiment of the present invention, the traction beam body profile 51 can transmit the traction force and the braking force to the coupler, and can also bear the equipment load and the horizontal longitudinal and lateral impact loads during traction. Figure 7 and Figure 8 As shown, the traction beam body profile 51 includes an upper traction beam profile 511 and a lower traction beam profile 512; the upper traction beam profile 511 and the lower traction beam profile 512 are arranged up and down and plug-connected. Optionally, the lower end surface of the upper traction beam profile 511 is a concave arc surface extending upward, and the shape of the lower traction beam profile 512 matches the concave arc surface.

[0064] In the embodiment of the present invention, the traction beam profile part includes, in addition to the traction beam body profile 51, a traction beam tail profile 52 which is arranged transversely, so as to realize that the traction beam profile part is uniformly stressed in the transverse direction. Specifically, the traction beam tail profile 52 is provided with a tail wing 521 with a gradually increasing transverse width; based on the tail wing 521, the longitudinal force can be further transmitted transversely to realize uniform stress, thereby improving the longitudinal bearing capacity of the front end structure of the chassis.

[0065] Optional, see Figure 1 and Figure 2 As shown, the end beam profile part 20 also includes a longitudinally arranged end beam back profile 23. The end beam back profile 23 is arranged on the back of the second end beam profile 22, and the lower end surface of the end beam back profile 23 is connected to the obstacle avoider interface profile part 40, and the upper end surface of the end beam back profile 23 and the upper end surface of the traction beam profile part are both used to connect to the middle floor 100 of the vehicle.

[0066] In the embodiment of the present invention, the end beam back profile 23 is arranged longitudinally so as to transmit longitudinal force. The lower end face of the end beam back profile 23 is connected to the obstacle avoider interface profile portion 40, and a T-shaped connection is realized between the two. At the same time, the upper end face of the end beam back profile 23 can be arranged on the middle floor 100 of the vehicle chassis to achieve fixation of the end beam back profile 23 and force transmission. At the same time, the upper end face of the traction beam profile portion in this embodiment is also arranged on the middle floor 100. For example, the upper end face of the traction beam upper profile 511 can be connected to the middle floor 100. Figure 7 As shown, the upper end surface of the end beam back profile 23 is flush with the upper end surface of the traction beam upper profile 511, that is, the two are on the same horizontal plane.

[0067] The front end structure of the chassis provided in the embodiment of the present invention is specifically arranged on the chassis. The schematic diagram after installation is shown in FIG. Fig. 9 and Fig.10 As shown, Fig. 9 It is a schematic diagram of the three-dimensional structure from a frontal perspective. Fig.10The figure is a three-dimensional structure schematic diagram from a back view angle. The outer side of the end beam profile part 20 of the front end structure of the chassis is arranged on the side edge beam 200, the back sides of the end beam profile part 20 and the coupler interface profile part 30 are connected to the middle floor 100, and the upper end surface of the end beam back profile 23 and the upper end surface of the traction beam upper profile 511 are arranged on the bottom side of the middle floor 100. For details, please refer to Fig.10 shown.

[0068] In the embodiment of the present invention, mounting holes can be opened on the profile to install anti-climbers, hooks, and snowplows. Optionally, the front end structure of the chassis can be pre-assembled with the middle floor 100 and the side beams 200, and then machined as a whole to obtain mounting holes with more precise positioning, providing a convenient interface for the installation of anti-climbers, snowplows, and hooks. Fig. 9 and Fig.10 As shown, the front side of the anti-climber interface profile portion 10 is provided with an anti-climber mounting hole 101; the front side of the coupler interface profile portion 30 is provided with a coupler mounting hole 301; the lower end surface of the obstacle avoider interface profile portion 40 is provided with a middle end mounting hole 401 of the obstacle avoider, the lower part of the front side of the anti-climber interface profile portion 10 is provided with a front end mounting hole 402 of the obstacle avoider, and the lower end surface of the traction beam profile portion is provided with a rear end mounting hole 403 of the obstacle avoider.

[0069] In this embodiment, the anti-climber mounting hole 101 is used to install the anti-climber, the coupler mounting hole 301 is used to install the coupler, and the clearer mounting hole is used to install the clearer. Among them, the clearer mounting holes include three types: the clearer middle mounting hole 401, the clearer front mounting hole 402 and the clearer rear mounting hole 403. The three types of clearer mounting holes are respectively arranged on the lower end surface of the clearer interface profile portion 40, the lower front side of the anti-climber interface profile portion 10, and the lower end surface of the traction beam profile portion (for example, part of the lower end surface of the traction beam upper profile 511, etc.), so as to realize the overall installation of the clearer. In addition, as Fig.10 As shown, the anti-climber interface profile portion 10 is also provided with an anti-climber crushing tube retraction hole 102 .

[0070] In this embodiment, the front end structure of the chassis can realize full profile force, and can realize up to seven levels of force transmission. Taking the anti-climber as an example, the transmission path of the longitudinal force is: the anti-climber interface profile part 10 → the end beam profile part 20 → the end beam back profile 23 → the traction beam body profile 51 → the traction beam tail profile 52 → the middle floor 100 → the side beam 200, thereby realizing seven levels of force transmission. In the front end of the traditional chassis without pillow beams, thick plates and profiles are mostly used to participate in the force, totaling five levels; the front end structure of the chassis provided in this embodiment adds two-level transmission paths of the end beam back profile 23 and the traction beam tail profile 52 as a whole, and the force bearing capacity is stronger; and the traction beam tail profile 52 is arranged horizontally to achieve uniform force distribution and improve the longitudinal bearing capacity.

[0071] The front-end structure of the chassis provided in this embodiment can be directly applied to the front-end area of ​​the urban rail train with the driver's cab end. Its static strength and load meet the requirements of P-III in EN 12663-1 "Railway Application Facilities. Railway Vehicle Body Structure Requirements. Part 1: Locomotives and Passenger Cars (and Alternative Methods for Freight Cars)"; while bearing the vertical load, a static pressure load of 1200kN and a tensile load of 960kN are applied along the longitudinal horizontal direction of the coupler installation, and the structural stress does not exceed the design allowable stress. After simulation under the worst working condition (1.3AW3 + 1200kN longitudinal compression condition of the coupler seat), it is shown that the front-end structure of the chassis is reliable.

[0072] Optional, see Figures 1 to 6 As shown, the cross-section of the end beam profile part 20 and the coupler interface profile part 30 is a closed rectangular cavity shape, which can reduce the weight of the profile while ensuring the load-bearing capacity of the profile. Other profiles can also adopt a similar rectangular cavity shape structure, which is not limited in this embodiment.

[0073] The embodiment of the present invention provides a full-profile chassis front-end structure, in which all components are profile structures, light in weight, and easy to process; the profiles are connected by plug-in connection, which can achieve rapid assembly, less assembly time, and only the plug-in parts need to be welded, and the welding process is simple. The chassis front-end structure provides a centralized installation interface for the anti-climber, hook and obstacle remover at the front end of the vehicle, which can achieve integrated installation and reduce the additional fixed structure required for the installation of each device; and the chassis front-end structure modularizes the profiles, which can achieve adaptive installation and meet the requirements of vehicle bodies with different strength grades. At the same time, the chassis front-end structure can also realize full-profile force bearing, and the two-level transmission path of the end beam back profile 23 and the traction beam tail profile 52 is added as a whole, so the force bearing capacity is stronger; and the traction beam tail profile 52 is arranged horizontally, which realizes uniform force distribution and improves the longitudinal bearing capacity.

[0074] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technical solution that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A full profile chassis front end structure, characterized in that: include: Anti-climber interface profile part, end beam profile part, coupler interface profile part, obstacle avoider interface profile part and traction beam profile part; The anti-climbing device interface profile portion is arranged on the front side of the end beam profile portion and is plug-connected with the end beam profile portion; The end beam profile part and the coupler interface profile part are arranged side by side in a transverse direction, and the side part of the end beam profile part is plug-connected with the side part of the coupler interface profile part; The obstacle remover interface profile portion is arranged on the lower back side of the end beam profile portion and / or the coupler interface profile portion; The traction beam profile part is arranged on the back of the coupler interface profile part and is plug-connected with the coupler interface profile part; The coupler interface profile portion includes a plurality of coupler interface profiles, the plurality of coupler interface profiles are arranged side by side in a transverse manner, and two adjacent coupler interface profiles are plug-connected; the coupler interface profiles on both sides are plug-connected with the end beam profile portion; The back sides of two of the coupler interface profiles are provided with longitudinal coupler interface back plug-in ends, and the coupler interface back plug-in ends are plug-connected with the traction beam profile portion; The traction beam profile portion includes a traction beam body profile and a traction beam tail profile; The traction beam body profile is arranged longitudinally, and one end of the traction beam body profile is plug-connected with the back side of the coupler interface profile portion; The tail section of the traction beam is arranged transversely and connected to the other end of the main section of the traction beam.

2. The full profile chassis front end structure according to claim 1, characterized in that: The anti-climbing device interface profile portion includes a first anti-climbing device interface profile and a second anti-climbing device interface profile, and the first anti-climbing device interface profile and the second anti-climbing device interface profile are transversely plug-connected; The first anti-climber interface profile and the second anti-climber interface profile are both provided with longitudinal anti-climber interface plug-in ends, and the anti-climber interface plug-in ends are plug-connected with the end beam profile portion.

3. The full profile chassis front end structure according to claim 1, characterized in that: The end beam profile portion comprises a first end beam profile and a second end beam profile, and the first end beam profile and the second end beam profile are transversely plug-connected; The front sides of the first end beam profile and the second end beam profile are both provided with longitudinal end beam positive plug-in ends, and the end beam positive plug-in ends are plug-connected with the anti-climber interface profile portion; A transverse end beam side plug-in end is provided on the side of the second end beam profile, and the end beam side plug-in end is plug-connected with the side of the coupler interface profile.

4. The full profile chassis front end structure according to claim 3, characterized in that: The end beam profile portion also includes an end beam back profile disposed longitudinally; The end beam back profile is arranged on the back side of the second end beam profile, and the lower end surface of the end beam back profile is connected to the obstacle avoider interface profile part, and the upper end surface of the end beam back profile and the upper end surface of the traction beam profile part are both used to connect to the middle floor of the vehicle.

5. The full profile chassis front end structure according to claim 1, characterized in that: The tail section of the traction beam is provided with a tail wing with gradually increasing transverse width.

6. The full profile chassis front end structure according to claim 1, characterized in that: The traction beam main body profile includes an upper traction beam profile and a lower traction beam profile; the upper traction beam profile and the lower traction beam profile are arranged up and down and plug-connected; The lower end surface of the upper profile of the traction beam is a concave arc surface extending upward, and the shape of the lower profile of the traction beam matches the concave arc surface.

7. The full profile chassis front end structure according to claim 1, characterized in that: The profile cross-sections of the end beam profile portion and the coupler interface profile portion are in the shape of a closed rectangular cavity.

8. The full profile chassis front end structure according to any one of claims 1 to 7, characterized in that: The front side of the anti-climber interface profile portion is provided with an anti-climber mounting hole; The front side of the coupler interface profile portion is provided with a coupler mounting hole; The lower end surface of the obstacle remover interface profile portion is provided with a middle end mounting hole of the obstacle remover, the lower front end surface of the anti-climber interface profile portion is provided with a front end mounting hole of the obstacle remover, and the lower end surface of the traction beam profile portion is provided with a rear end mounting hole of the obstacle remover.

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