Railway vehicle chassis front-end module, railway vehicle chassis and railway vehicle

Abstract

The embodiment of the invention provides a rail vehicle chassis front-end module, a rail vehicle chassis and a rail vehicle, the front-end module comprises an end component beam, a connecting beam and two side beams oppositely arranged in the transverse direction, and any side beam is fixed to the end component beam and the connecting beam; the sleeper beam is fixedly arranged between the two edge beams in the transverse direction; two longitudinal ends of the traction beam are respectively fixed with the end part composition beam and the sleeper beam; one longitudinal end of the connecting beam is connected with the sleeper beam, and the other end of the connecting beam is fixed with each boundary beam; the car coupler mounting seat is arranged at the front end of the end component beam in the longitudinal direction, and the end component beam, the connecting beam, the side beam, the traction beam, the connecting beam and the car coupler mounting seat are fixed in a tailor welding mode. In the application, the end part composition beams, the connecting beams, the side beams, the traction beams, the connecting beams and the car coupler mounting seats are tailor-welded to form the chassis front-end module, so that the overall bearing strength is improved; and the whole body can be replaced after being damaged, the maintenance efficiency is improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of rail vehicles, and in particular to a rail vehicle underframe front end module, a rail vehicle underframe and a rail vehicle. Background Art

[0002] In recent years, with the rapid development of domestic rail vehicle technology, in order to meet the advanced technology needs of rail vehicles, it is particularly important to carry out research on key technologies of rail vehicles. The car body, as a key part of rail vehicles, is the main load-bearing structure of the vehicle.

[0003] The car body bears loads and forces such as deadweight, load, traction, lateral force when passing through curves, braking force, etc. The car body mainly relies on the front end of the chassis to bear the load. The front end is connected to the bogie and the coupler, and is an important functional structure of the car body. The current chassis generally adopts a bulk structure, and the pillow beam needs to be spliced ​​in multiple steps. The final upper cover needs to be completed after the chassis is assembled, which affects production efficiency. This structure is not convenient for transportation during transportation. Summary of the invention

[0004] The embodiments of the present application provide a rail vehicle underframe front end module, a rail vehicle underframe and a rail vehicle to solve the problem that the existing rail vehicle underframe adopts a bulk structure, the bolsters, etc. need to be gradually spliced, which affects the production efficiency.

[0005] In order to achieve the above objectives, this application provides the following technical solutions:

[0006] A rail vehicle underframe front end module, comprising:

[0007] An end component beam and a connecting beam, wherein the end component beam and the connecting beam are arranged opposite to each other in the longitudinal direction;

[0008] Two side beams arranged opposite to each other in the transverse direction, any one of the side beams being respectively fixed to the end component beam and the connecting beam;

[0009] A bolster beam, fixedly arranged in the transverse direction between the two side beams;

[0010] A traction beam, the two ends of which along the longitudinal direction are respectively fixed to the end component beam and the bolster beam;

[0011] A connecting beam, one end of which is connected to the bolster along the longitudinal direction, and the other end of which is fixed to each of the side beams;

[0012] A coupler mounting seat is longitudinally arranged at the front end of the end component beam, and the end component beam, the connecting beam, the side beam, the traction beam, the connecting beam and the coupler mounting seat are fixed by welding.

[0013] Optionally, the coupler mounting seat comprises:

[0014] The upper cover plate and the lower cover plate are arranged opposite to each other in the vertical direction;

[0015] Two vertical plates arranged opposite to each other in the transverse direction, any of the vertical plates being located between the upper cover plate and the lower cover plate in the vertical direction, and having two ends respectively welded and fixed to the upper cover plate and the lower cover plate; a front follower plate seat and a rear follower plate seat are respectively provided on any of the vertical plates;

[0016] A middle partition plate is located vertically between the upper cover plate and the lower cover plate, and the middle partition plate is fixed to the vertical plate by welding;

[0017] The upper cover plate, the lower cover plate, the vertical plate and the middle partition plate are respectively welded and fixed to the end component beams.

[0018] Optionally, the coupler mounting seat further includes:

[0019] A plurality of reinforcing plates are arranged longitudinally, one end of any reinforcing plate is fixed to the vertical plate, and the other end is fixed to the middle partition plate.

[0020] Optionally, any of the vertical boards comprises a vertical board body and an inclined board portion, the vertical board body and the end portion are fixed to form a beam; the inclined board portion is located at the longitudinal front end of the vertical board, and the distance between the two inclined board portions increases forward along the longitudinal direction; the top wall of the inclined portion is lower than the top wall of the vertical board body, and the top wall of the inclined portion and the longitudinal end wall of the vertical board body form a lap platform;

[0021] The coupler mounting seat also includes a partition plate fixedly arranged on the overlapping platform, the partition plate is a U-shaped structure, and the two side walls of the U-shaped structure respectively have transverse outer edge portions.

[0022] Optionally, the middle partition includes a middle inner partition and a middle outer partition, the middle inner partition is located on the inner side of the vertical plate in the transverse direction, the middle outer partition is located on the outer side of the vertical plate in the transverse direction, and the middle inner partition and the middle outer partition are in the same plane.

[0023] Optionally, the end component beam comprises:

[0024] A front end plate and a rear end plate are arranged opposite to each other in the longitudinal direction, wherein the front end plate is located close to the side of the coupler mounting seat;

[0025] The upper cover plate of the component beam and the lower cover plate of the component beam are arranged opposite to each other in the vertical direction. The upper cover plate of the component beam and the lower cover plate of the component beam are both located between the front end plate and the rear end plate, and are respectively welded and fixed to the front end plate and the rear end plate.

[0026] Optionally, the front end plate and the rear end plate are respectively provided with a clearance hole for the hook to pass through;

[0027] The end component beam also includes a lower supplementary plate, which is located between the front end plate and the rear end plate and is in the same plane as the lower cover plate.

[0028] Optionally, the end component beam further comprises:

[0029] Two vertical support plates are respectively located at the two lateral ends of the lower supplementary plate, and any of the vertical support plates is arranged coplanar with the vertical plate in the longitudinal direction; the vertical support plates are respectively welded and fixed to the front end plate, the rear end plate, the upper cover plate, the lower cover plate and the lower supplementary plate.

[0030] Optionally, the traction beam comprises:

[0031] The traction beam upper cover plate and the traction beam lower cover plate are arranged opposite to each other in the vertical direction;

[0032] A group of traction beam upright plates are arranged opposite to each other in the transverse direction, and any of the traction beam upright plates is fixedly arranged in the vertical direction between the traction beam upper cover plate and the traction beam lower cover plate.

[0033] Optionally, a plurality of weight-reducing holes are provided on the lower cover plate of the traction beam distributed in the longitudinal direction.

[0034] Optionally, the traction beam further comprises:

[0035] A plurality of partitions are arranged longitudinally, and any of the partitions are welded and fixed to the lower cover plate and the traction beam vertical plate; at least one of the partitions is located between adjacent weight-reducing holes.

[0036] Optionally, the bolster comprises:

[0037] The upper cover plate of the bolster and the lower cover plate of the bolster are arranged opposite to each other in the vertical direction;

[0038] Two bolster uprights are arranged opposite to each other in the longitudinal direction, and any one of the bolster uprights is fixedly arranged between the bolster upper cover plate and the bolster lower cover plate in the vertical direction, and extends into the cavity of the side beam in the transverse direction and is welded and fixed to the side beam.

[0039] Optionally, the bolster further comprises:

[0040] Two support uprights arranged opposite to each other in the transverse direction, the longitudinal ends of any of the support uprights are respectively welded and fixed to the corresponding bolster uprights, and the vertical ends of any of the support uprights are respectively welded and fixed to the bolster upper cover plate and the bolster lower cover plate;

[0041] The middle cover plate of the bolster is located between the two supporting upright plates in the transverse direction, and the transverse ends of the middle cover plate of the bolster are respectively welded and fixed to the corresponding supporting upright plates;

[0042] There are two lower cover plates of the bolster, which are respectively located on the two lateral sides of the middle cover plate of the bolster, and any one of the lower cover plates of the bolster is welded and fixed to the supporting vertical plate and the middle cover plate of the bolster.

[0043] Optionally, the bolster further comprises:

[0044] A transverse stopper located on the lower cover plate of the bolster;

[0045] A plurality of transverse stop support plates are located on the pillow beam vertical plate and are arranged opposite to the transverse stop in the transverse direction.

[0046] Optionally, the bolster further comprises:

[0047] The wire passing sleeve passes through the two supporting vertical plates in the longitudinal direction to provide a space for the cable to pass through.

[0048] Optionally, the connecting beam comprises:

[0049] The connecting beam upper cover plate and the connecting beam lower cover plate are arranged opposite to each other in the vertical direction;

[0050] The two connection beam upright plates are arranged opposite to each other in the transverse direction, and any one of the connection beam upright plates is respectively welded and fixed to the connection beam upper cover plate and the connection beam lower cover plate.

[0051] Optionally, the connecting beam further comprises:

[0052] The end oblique beam is located at the rear end of the connecting beam upper cover plate in the longitudinal direction and is welded and fixed between the two connecting beam vertical plates in the transverse direction; the end oblique beam has an inclined portion inclined downward from front to rear in the longitudinal direction, and an end reinforcement vertical plate is provided between the end oblique beam and the connecting beam upper cover plate, and the end oblique beam, the connecting beam upper cover plate and the end reinforcement vertical plate are welded and fixed.

[0053] Optionally, it further comprises a bogie connecting seat, which is seated on the bolster and the side beam and fixed by welding;

[0054] The bogie connecting seat comprises a U-shaped seat and a connecting seat upper cover plate, the opening of the U-shaped seat is arranged outward in the transverse direction, and the connecting seat upper cover plate is welded and fixed to the U-shaped cavity wall of the U-shaped seat.

[0055] Optionally, it also includes:

[0056] The corrugated plate is fixedly arranged between the end component beam and the connecting beam in the longitudinal direction, and is fixedly arranged between the two side beams in the transverse direction.

[0057] Optionally, it further comprises a plurality of reinforcing beams extending in the transverse direction;

[0058] At least two reinforcing cross beams arranged in the longitudinal direction are provided between the side beam and the traction beam and between the side beam and the connecting beam.

[0059] The present application also provides a rail vehicle underframe, comprising an underframe body and a rail vehicle underframe front end module as described in any one of the above embodiments;

[0060] The rail vehicle underframe front end module is located at the longitudinal front end of the underframe body and is fixed to the bottom surface of the underframe body.

[0061] The present application also provides a rail vehicle body, comprising an end wall, a side wall and the rail vehicle underframe described in the above embodiment;

[0062] The front end module of the rail vehicle underframe is respectively welded and fixed to the end wall and the side wall.

[0063] The present application also provides a rail vehicle, comprising the rail vehicle body described in the above embodiment.

[0064] A front-end module of a rail vehicle underframe provided in an embodiment of the present application comprises: an end component beam and a connecting beam, the end component beam and the connecting beam being arranged opposite to each other in the longitudinal direction; two side beams being arranged opposite to each other in the transverse direction, any one of the side beams being respectively fixed to the end component beam and the connecting beam; a bolster beam being fixedly arranged between the two side beams in the transverse direction; a traction beam, the two ends of which in the longitudinal direction are respectively fixed to the end component beam and the bolster beam; a connecting beam, one end of which in the longitudinal direction is connected to the bolster beam, and the other end of which is respectively fixed to each side beam; a coupler mounting seat being arranged at the front end of the end component beam in the longitudinal direction, and the end component beam, the connecting beam, the side beam, the traction beam, the connecting beam and the coupler mounting seat being fixed by welding.

[0065] Compared with the prior art, the rail vehicle underframe front end module, rail vehicle underframe and rail vehicle provided in the embodiments of the present application have the following technical effects:

[0066] In the present application, the end component beams, connecting beams, side beams, traction beams, connecting beams and coupler mounting seats are welded to form the front end module of the chassis, and the modules are welded to form a whole, thereby improving the overall bearing strength; and the traction rod seat and the transverse rod seat can be welded to the front end module of the chassis to meet the installation requirements of the two; at the same time, after damage, they can be replaced as a whole, thereby improving maintenance efficiency and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0068] Figure 1A schematic cross-sectional structure diagram of a front-end module of a rail vehicle underframe provided in an embodiment of the present application;

[0069] Figure 2 A schematic diagram of the axonometric structure of a coupler mounting seat provided in an embodiment of the present application;

[0070] Figure 3 Three views of the coupler mounting seat provided in the embodiment of the present application, wherein (a) is a top view, (b) is a side view, and (c) is a front view;

[0071] Figure 4 Two views of the end component beam provided in the embodiment of the present application, wherein (a) is a top view and (b) is a side view;

[0072] Figure 5 A schematic diagram of the position of the vertical support plate provided in an embodiment of the present application;

[0073] Figure 6 A schematic diagram of the installation structure of the end component beam provided in an embodiment of the present application;

[0074] Figure 7 A schematic diagram of the structure of a traction beam provided in an embodiment of the present application;

[0075] Figure 8 Two views of the bolster provided in the embodiment of the present application, wherein (a) is a top view and (b) is a side view;

[0076] Fig. 9 Three views of the connecting beam provided in the embodiment of the present application, wherein (a) is a top view, (b) is a side view, and (c) is a front view;

[0077] Fig.10 A schematic diagram of the installation structure of the connecting beam provided in an embodiment of the present application;

[0078] Fig.11 A schematic structural diagram of the bogie connecting seat provided in an embodiment of the present application.

[0079] The following are marked in the accompanying drawings:

[0080] Coupler mounting seat 1, end component beam 2, side beam 3, bolster beam 4, connecting beam 5, bogie connecting seat 6, traction beam 7, corrugated plate 8, and reinforcing cross beam 9;

[0081] An upper cover plate 11, a middle partition plate 12, a lower cover plate 13, a front secondary plate seat 14, a rear secondary plate seat 15, a partition plate 16, a vertical plate 18, and a reinforcing plate 19;

[0082] Front end plate 21, rear end plate 22, upper cover plate 23 of component beam, lower cover plate 24 of component beam, lower supplementary plate 25, vertical support plate 26;

[0083] The upper cover plate of the bolster 41, the lower cover plate of the bolster 42, the vertical plate of the bolster 43, the vertical support plate 44, the middle cover plate of the bolster 45, the transverse stopper 46, the transverse stopper support plate 47, and the wire sleeve 48;

[0084] A connecting beam lower cover plate 51, a connecting beam upper cover plate 52, a connecting beam vertical plate 53, an end inclined beam 54, and an end reinforcing vertical plate 55;

[0085] Traction beam upper cover plate 71 , traction beam lower cover plate 72 , traction beam vertical plate 73 , and partition plate 74 . DETAILED DESCRIPTION

[0086] The embodiment of the invention discloses a rail vehicle underframe front end module, a rail vehicle underframe and a rail vehicle, so as to solve the problem that the existing rail vehicle underframe adopts a bulk structure, the bolsters and the like need to be spliced ​​step by step, and the production efficiency is affected.

[0087] In order to make the technical solutions and advantages in the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all the 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.

[0088] See also Figure 1-11 , Figure 1 A schematic cross-sectional structure diagram of a front-end module of a rail vehicle underframe provided in an embodiment of the present application; Figure 2 A schematic diagram of the axonometric structure of a coupler mounting seat provided in an embodiment of the present application;

[0089] Figure 3 Three views of the coupler mounting seat provided in the embodiment of the present application, wherein (a) is a top view, (b) is a side view, and (c) is a front view; Figure 4 Two views of the end component beam provided in the embodiment of the present application, wherein (a) is a top view and (b) is a side view; Figure 5 A schematic diagram of the position of the vertical support plate provided in an embodiment of the present application; Figure 6 A schematic diagram of the installation structure of the end component beam provided in an embodiment of the present application;

[0090] Figure 7 A schematic diagram of the structure of a traction beam provided in an embodiment of the present application; Figure 8 Two views of the bolster provided in the embodiment of the present application, wherein (a) is a top view and (b) is a side view; Fig. 9 Three views of the connecting beam provided in the embodiment of the present application, wherein (a) is a top view, (b) is a side view, and (c) is a front view; Fig.10A schematic diagram of the installation structure of the connecting beam provided in an embodiment of the present application; Fig.11 A schematic structural diagram of the bogie connecting seat provided in an embodiment of the present application.

[0091] In a specific embodiment, the rail vehicle underframe front-end module provided in the present application includes an end component beam 2, a connecting beam 5, a side beam 3, a pillow block 4, a traction beam 7, a connecting beam 5, a coupler mounting seat 1, a corrugated plate 8 and a reinforcing cross beam 9. The rail vehicle underframe front-end module is located at the bottom front end of the underframe and is fixed to the bottom surface of the underframe body. The front-end structure is integrated to form an end underframe module, thereby improving the structural strength and the installation accuracy, and meeting the installation accuracy of the traction rod seat on the underframe. Specifically, the end component beam 2 and the connecting beam 5 are relatively arranged along the longitudinal direction of the rail vehicle. The longitudinal direction of the rail vehicle described here and below is the length direction of the rail vehicle, and the transverse direction of the rail vehicle is the width direction of the rail vehicle. The two side beams 3 are arranged opposite to each other in the transverse direction of the rail vehicle, and the two transverse ends of any side beam 3 are respectively fixed to the end component beam 2 and the connecting beam 5; the end component beam 2, the connecting beam 5 and the two side beams 3 form a rectangular frame structure; the bolster beam 4 is arranged in the transverse direction, and the two ends are respectively fixed to the corresponding side beams 3, and the bolster beam 4 is preferably arranged at the longitudinal center; the two longitudinal ends of the traction beam 7 are respectively fixed to the end component beam 2 and the bolster beam 4 for transmitting the longitudinal load; one longitudinal end of the connecting beam 5 is connected to the bolster beam 4, and the other end has a transverse extension part for converting the longitudinal load into a transverse load for bearing, and the two transverse ends of the connecting beam 5 are respectively fixed to the corresponding side beam 3, and the longitudinal load is evenly transmitted to the transverse direction of the entire chassis front end module, so as to evenly transmit the impact load to the chassis, and convert the longitudinal load into a transverse load, which is carried by the connecting beam 5, the side beam 3 and the chassis as a whole, thereby improving the chassis' ability to withstand impact loads.

[0092] Optionally, the coupler mounting seat 1 is fixedly arranged at the front end of the end component beam 2 along the longitudinal direction, and forms a whole with the front end module of the chassis, so as to better improve the bearing strength. At the same time, the coupler mounting seat 1 is a welded structure, which reduces the manufacturing cost and shortens the manufacturing cycle; compared with the coupler mounting seat 1 obtained by casting, it improves the product quality and reduces the product weight. The end component beam 2, the connecting beam 5, the side beam 3, the traction beam 7, the connecting beam 5 and the coupler mounting seat 1 are welded and fixed, which further reduces the weight and improves the production efficiency; improves the overall bearing strength and shortens the chassis production time.

[0093] In this embodiment, the coupler mounting seat 1 comprises:

[0094] The upper cover plate 11 and the lower cover plate 13 are arranged opposite to each other in the vertical direction;

[0095] Two vertical plates 18 are arranged opposite to each other in the transverse direction, and each vertical plate 18 is located between the upper cover plate 11 and the lower cover plate 13 in the vertical direction, and the two ends are respectively welded and fixed to the upper cover plate 11 and the lower cover plate 13; each vertical plate 18 is respectively provided with a front plate seat 14 and a rear plate seat 15;

[0096] The middle partition plate 12 is located between the upper cover plate 11 and the lower cover plate 13 in the vertical direction, and the middle partition plate 12 is fixed to the vertical plate 18 by welding;

[0097] The upper cover plate 11, the lower cover plate 13, the vertical plate 18 and the middle partition plate 12 are respectively welded and fixed to the end component beams 2.

[0098] The upper cover plate 11 and the lower cover plate 13 are respectively provided with weight-reducing holes to reduce weight; two vertical plates 18 are provided between the upper cover plate 11 and the lower cover plate 13, and the two vertical plates 18 are arranged opposite to each other in the horizontal direction. Each vertical plate 18 is located between the upper cover plate 11 and the lower cover plate 13 in the vertical direction, and the two vertical ends are respectively welded and fixed to the upper cover plate 11 and the lower cover plate 13; each vertical plate 18 is respectively provided with a front plate seat 14 and a rear plate seat 15 in the longitudinal direction for installing the front plate and the rear plate, and the vertical plates 18 are correspondingly provided with front plate seat 14 mounting holes and rear plate seat 15 mounting holes for installing the front plate seat 14 and the rear plate seat 15 respectively. In order to improve the bearing capacity, a middle partition plate 12 is provided between the upper cover plate 11 and the lower cover plate 13, and the middle partition plate 12 is welded and fixed to the vertical plate 18 to increase the bearing capacity of the vertical plate 18 and better withstand the impact load. The middle partition 12 extends to both ends along the longitudinal direction of the vertical plate 18 , further increasing the contact area and connection strength between the middle partition 12 and the vertical plate 18 .

[0099] Specifically, each vertical plate 18 is provided with a middle partition 12, each middle partition 12 includes a middle inner partition 74 and a middle outer partition 74, the middle inner partition 74 is located on the inner side of the vertical plate 18 in the transverse direction, the middle outer partition 74 is located on the outer side of the vertical plate 18 in the transverse direction, and the middle inner partition 74 and the middle outer partition 74 are in the same plane. The middle inner partition 74 and the middle outer partition 74 are respectively welded and fixed to the vertical plate 18, and the bending shear force of the vertical plate 18 is increased by setting the middle partition 12, so as to better transfer the longitudinal load to the end component beam 2.

[0100] The end of the middle inner partition 74 near the end component beam 2 is provided with a transverse extension portion, which extends inwardly in the transverse direction to increase the contact area with the end component beam 2 and improve the connection strength; the end of the middle outer partition 74 near the end component beam 2 is also provided with a transverse extension portion, which extends outwardly in the transverse direction to also increase the contact area with the end component beam 2 and improve the connection strength. At the other end in the longitudinal direction, the end of the middle inner partition 74 and the end of the middle outer partition 74 are also provided with a transverse extension portion to further increase the contact area with the bottom frame and further improve the connection strength.

[0101] In order to further improve the longitudinal load transmission effect of the coupler mounting seat 1, the coupler mounting seat 1 further includes a plurality of reinforcing plates 19, each reinforcing plate 19 is arranged in the longitudinal direction, one end of any reinforcing plate 19 is fixed to the vertical plate 18, and the other end is fixed to the middle partition plate 12. Each reinforcing plate 19 further increases the structural strength of the vertical plate 18 to prevent the vertical plate 18 from shearing or bending under the impact of the longitudinal load, and thus being unable to transmit the longitudinal load backward. Each reinforcing plate 19 is preferably located on the upper surface of the middle partition 12, the bottom edge of the reinforcing plate 19 is welded to the upper surface of the middle partition 12, and the lateral edge of the reinforcing plate 19 is welded and fixed to the vertical plate 18, further increasing the structural strength of the upper part of the vertical plate 18. It can be understood that the lower part of the vertical plate 18 is the space for the hook to retreat, and the vertical position of the middle partition 12 is also set according to the height of the hook. The hook is located below the middle partition 12. In order to prevent the vertical plate 18 from being deformed by the impact force and affecting the retreat of the hook, the middle partition 12 and the reinforcing plate 19 are set to improve the structural strength above the vertical plate 18 and ensure that the hook can retreat normally. In this embodiment, 3-8 reinforcing plates 19 can be set on each side of the vertical plate 18. If 4 are set, they can be set according to the length of the coupler mounting seat 1 and the force analysis, which will not be repeated here.

[0102] Furthermore, any vertical plate 18 includes a vertical plate 18 body and an inclined plate portion, and the vertical plate 18 body and the end portion form a beam 2 for fixing; the inclined plate portion is located at the longitudinal front end of the vertical plate 18, and the distance between the two inclined plate portions increases forward along the longitudinal direction; the top wall of the inclined portion is lower than the top wall of the vertical plate 18 body, and the top wall of the inclined portion and the longitudinal end wall of the vertical plate 18 body form a lap platform; the coupler mounting seat 1 also includes a partition plate 16, which is fixed on the lap platform, and the partition plate 16 is a U-shaped structure, and the two side walls of the U-shaped structure respectively have lateral outer edge portions.

[0103] It can be understood that a reinforcing plate 19 is provided on the main body of the vertical plate 18, and the main body of the vertical plate 18 is arranged perpendicular to the end component beam 2; the middle partition plate 12 extends from the main body of the vertical plate 18 to the longitudinal edge of the inclined plate portion to reinforce the vertical plate 18 as a whole in the longitudinal direction; improve the structural strength. The partition plate 16 is fixed on the lap joint, and is welded and fixed to the top wall of the inclined portion and the longitudinal end wall of the main body of the vertical plate 18. The top wall of the partition plate 16 is arranged flush with the upper cover plate 11. The partition plate 16 is a U-shaped structure, and the two side walls of the U-shaped structure are provided with transverse outer edges extending in the transverse direction, and the transverse outer edges are arranged perpendicular to the side walls of the U-shaped structure; the partition plate 16 is used to separate the end wall and the front end module of the rail vehicle chassis. The partition plate 16 is directly fully welded with the end wall to transmit the longitudinal force. The U-shaped structure ensures the connection strength and can be used to connect large components to eliminate manufacturing errors.

[0104] In an optional embodiment, the end component beam 2 includes:

[0105] A front end plate 21 and a rear end plate 22 are arranged opposite to each other in the longitudinal direction, and the front end plate 21 is located near the side of the coupler mounting seat 1;

[0106] The upper cover plate 23 and the lower cover plate 24 of the component beam are arranged opposite to each other in the vertical direction. Both the upper cover plate 23 and the lower cover plate 24 of the component beam are located between the front end plate 21 and the rear end plate 22 and are welded and fixed to the front end plate 21 and the rear end plate 22 respectively.

[0107] In the longitudinal direction of the rail vehicle, the driving direction is taken as the front, that is, the side close to the coupler mounting seat 1 is taken as the front, and the side away from the coupler mounting seat 1 is taken as the rear; the front end plate 21, the rear end plate 22, the upper cover plate 23 of the component beam and the lower cover plate 24 of the component beam form a box beam; the upper cover plate 11, the lower cover plate 13, the vertical plate 18 and the middle partition plate 12 in the coupler mounting seat 1 are respectively welded and fixed to the front end plate 21.

[0108] Specifically, the front end plate 21 and the rear end plate 22 are respectively provided with a clearance hole for the hook to pass through; the front end plate 21 and the rear end plate 22 are respectively provided with an extension portion extending downward, and the extension portion is provided with a clearance hole; in order to improve the structural strength of the end component beam 2, the end component beam 2 also includes a lower patch plate 25, which is located between the front end plate 21 and the rear end plate 22 and is in the same plane as the lower cover plate 13; the clearance hole is located above the lower patch plate 25, and the lower patch plate 25 is used to enhance the structural strength of the portion between the front end plate 21 and the rear end plate 22 and corresponding to the lower cover plate 13, and is used to bear the longitudinal load transmitted by the lower cover plate 13, and increase the load bearing capacity of the end component beam 2. The position and shape of the clearance hole are set according to the hook, and will not be repeated here.

[0109] Furthermore, the end component beam 2 also includes two vertical support plates 26, which are respectively located at the two lateral ends of the lower supplementary plate 25, and any vertical support plate 26 is arranged coplanar with the vertical plate 18 along the longitudinal direction; the vertical support plates 26 are respectively welded and fixed to the front end plate 21, the rear end plate 22, the upper cover plate 11, the lower cover plate 13 and the lower supplementary plate 25.

[0110] The vertical support plates 26 are respectively arranged at the two lateral ends of the lower patch plate 25 and are coplanar with the vertical plate 18 in the longitudinal direction, thereby increasing the longitudinal support force of the front end plate 21 and the rear end plate 22, and better bearing the longitudinal load transmitted by the vertical plate 18. The two vertical support plates 26, the lower patch plate 25, and the upper cover plate 11 form a box structure, which serves as a direct bearing structure for the longitudinal load transmitted by the hook mounting seat 1, and the local impact resistance is increased through the box structure. At the same time, the end component beam 2 also includes an intermediate patch plate, which is located in the same plane as the middle partition plate 74. The two vertical support plates 26, the lower patch plate 25, the intermediate patch plate, and the upper cover plate 11 form a box structure to further increase the structural strength.

[0111] In an optional embodiment, the traction beam 7 comprises:

[0112] A traction beam upper cover plate 71 and a traction beam lower cover plate 72 arranged opposite to each other in the vertical direction;

[0113] A group of traction beam upright plates 73 are arranged opposite to each other in the transverse direction, and any traction beam upright plate 73 is fixedly arranged between the traction beam upper cover plate 71 and the traction beam lower cover plate 72 in the vertical direction.

[0114] The traction beam upper cover plate 71, the traction beam lower cover plate 72 and the traction beam vertical plate 73 are welded and fixed; specifically, there are two traction beam vertical plates 73, which are coplanar with the front end vertical support plate 26 and the vertical plate 18 along the longitudinal direction to transfer the longitudinal load.

[0115] At the same time, a plurality of weight-reducing holes are provided on the traction beam lower cover plate 72 along the longitudinal direction to further reduce the weight.

[0116] On the other hand, the traction beam 7 further comprises:

[0117] Several partitions 74 are arranged in the longitudinal direction, and any partition 74 is welded and fixed to the lower cover plate 13 and the traction beam vertical plate 73; at least one partition 74 is located between adjacent weight reduction holes. The partition 74 is flush with the reinforcing cross beam 9 in the transverse direction to increase the transverse bearing capacity of the front module of the chassis, improve the structural connection strength, and increase the structural stability. Preferably, the partitions 74 and the reinforcing cross beams 9 are arranged one by one.

[0118] In a specific embodiment, the bolster 4 comprises:

[0119] A bolster upper cover plate 41 and a bolster lower cover plate 42 arranged opposite to each other in the vertical direction;

[0120] Two bolster upright plates 43 are arranged opposite to each other in the longitudinal direction. Any bolster upright plate 43 is fixedly arranged vertically between the bolster upper cover plate 41 and the bolster lower cover plate 42, and extends horizontally into the cavity of the side beam 3 and is welded and fixed to the side beam 3, thereby increasing the continuity of the structure and improving the structural connection strength. At the same time, the bolster upright plate 43 serves as a reinforcing plate in the side beam 3 to improve its structural strength.

[0121] Optionally, the bolster 4 further comprises:

[0122] Two support upright plates 44 are arranged opposite to each other in the transverse direction, the longitudinal ends of any support upright plate 44 are respectively welded and fixed to the corresponding bolster upright plate 43, and the vertical ends of any support upright plate 44 are respectively welded and fixed to the bolster upper cover plate 41 and the bolster lower cover plate 42;

[0123] The middle cover plate 45 of the bolster is located between the two support plates 44 in the transverse direction, and the two transverse ends of the middle cover plate 45 of the bolster are respectively welded and fixed to the corresponding support plates 44;

[0124] There are two bolster lower cover plates 42 , which are respectively located on two lateral sides of the bolster middle cover plate 45 . Any bolster lower cover plate 42 is welded and fixed to the supporting upright plate 44 and the bolster middle cover plate 45 .

[0125] It can be understood that, in the transverse direction, one bolster lower cover plate 42, the bolster middle cover plate 45 and another bolster lower cover plate 42 are sequentially arranged, and the two support vertical plates 44 are respectively located at the transverse ends of the bolster middle cover plate 45. The transverse width of the bolster middle cover plate 45 can be set with reference to the transverse width between the traction beam vertical plates 73. At the same time, the two support vertical plates 44 are respectively coplanar with the traction beam vertical plates 73 in the longitudinal direction, thereby continuously transmitting the longitudinal load. At the same time, the bolster middle cover plate 45, the bolster lower cover plate 42, the bolster vertical plates 43 and the support vertical plates 44 form a box-type structure, which further improves the impact resistance.

[0126] Specifically, the bolster 4 also includes a wire sleeve 48, which passes through the two support plates 44 in the longitudinal direction to provide a space for the cable to pass through. The cross section of the wire sleeve 48 is an oblong hole type, and the support plates 44 are correspondingly provided with oblong holes for installing the wire sleeve 48. Two wire sleeves 48 are provided, which are located on the left and right sides in the horizontal direction, and the wire sleeve 48 is welded and fixed to the support plates 44.

[0127] Among them, the bolster 4 also includes:

[0128] A transverse stop 46, located on the lower cover plate 42 of the bolster;

[0129] A plurality of transverse stop support plates 47 are located on the bolster upright plate 43 and are disposed opposite to the transverse stop 46 in the transverse direction.

[0130] There are two transverse stops 46, which are respectively located on the two bolster lower cover plates 42. In order to ensure the connection strength of the transverse stops 46, transverse stop support plates 47 are arranged at the positions of the bolster vertical plates 43 in the horizontal direction relative to the transverse stops 46. The transverse stop support plates 47 are welded and fixed to the vertical plates 18. There can be 3 to 5 transverse stop support plates 47. The above structure integrates the transverse stops 46 with the bolster 4 to form a whole, thereby improving the overall bearing capacity.

[0131] In one embodiment, the connecting beam 5 comprises:

[0132] The connecting beam upper cover plate 52 and the connecting beam lower cover plate 51 are arranged opposite to each other in the vertical direction;

[0133] The two connecting beam upper cover plates 52 are arranged opposite to each other in the transverse direction, and any connecting beam upper cover plate 52 is respectively welded and fixed to the connecting beam upper cover plate 52 and the connecting beam lower cover plate 51 .

[0134] The two connecting beam upper covers 52 have lateral extensions with increasing distance from front to rear along the longitudinal direction to convert the longitudinal load into lateral load and reduce the longitudinal impact force; the connecting beam upper cover 52 and the connecting beam lower cover 51 are respectively provided with weight-reducing holes to further reduce the weight of the overall module.

[0135] Wherein, the connecting beam 5 further comprises:

[0136] The end oblique beam is located at the rear end of the connecting beam upper cover plate 52 in the longitudinal direction, and is welded and fixed between the two connecting beam upper cover plates 52 in the transverse direction; the end oblique beam has an inclined portion inclined downward from front to rear in the longitudinal direction, and an end reinforcing vertical plate 55 is provided between the end oblique beam and the connecting beam upper cover plate 52, and the end oblique beam, the connecting beam upper cover plate 52 and the end reinforcing vertical plate 55 are welded and fixed; the end oblique beam is structurally designed according to the simulation calculation results to transmit the longitudinal force, and the torsional stiffness is increased according to the module thickness. The force transmission path of the end oblique beam saves materials and contributes to the lightweight setting of the components.

[0137] In another embodiment, the above-mentioned rail vehicle underframe front end module further includes a bogie connecting seat 6, which is located on the bolster 4 and the side beam 3 and is welded and fixed;

[0138] The bogie connection seat 6 comprises a U-shaped seat and a connection seat upper cover plate 11. The opening of the U-shaped seat is arranged outward in the transverse direction. The connection seat upper cover plate 11 is welded and fixed to the U-shaped cavity wall of the U-shaped seat.

[0139] There are two bogie connection seats 6, which are arranged on the left and right sides in the horizontal direction, and are symmetrically arranged along the axis center of the bolster 4. The U-shaped seat is arranged upside down at the intersection of the bolster 4 and the side beam 3, and is welded and fixed to the bolster 4 and the side beam 3 respectively; the opening of the U-shaped seat is arranged outward in the horizontal direction, the connection seat upper cover plate 11 is located in the U-shaped cavity of the U-shaped seat, and the edge of the connection seat upper cover plate 11 is welded and fixed to the cavity wall of the U-shaped cavity to improve the connection strength.

[0140] Optionally, the corrugated plate 8 is fixedly arranged between the end component beam 2 and the connecting beam 5 in the longitudinal direction, and is fixedly arranged between the two side beams 3 in the transverse direction. The corrugated plate 8 is preferably a split structure, and a plurality of corrugated plates 8 are arranged in the transverse direction, and the whole is spliced ​​to form a cover plate structure. The specific material and structure of the corrugated plate 8 can be set according to the existing technology, and will not be repeated here.

[0141] It can be understood that the reinforcing beam 9 extends in the transverse direction, and at least two reinforcing beams 9 arranged in the longitudinal direction are provided between the side beam 3 and the traction beam 7 and between the side beam 3 and the connecting beam 5 to improve the overall structural strength of the front end module of the chassis and improve the impact resistance.

[0142] The present application also provides a rail vehicle underframe, comprising an underframe body and a rail vehicle underframe front end module of any one of the above embodiments;

[0143] The front end module of the rail vehicle underframe is located at the longitudinal front end of the underframe body and is fixed to the bottom surface of the underframe body.

[0144] The present application also provides a rail vehicle body, comprising an end wall, a side wall and the rail vehicle underframe of the above embodiment;

[0145] The front end module of the rail vehicle chassis is respectively welded and fixed to the end wall and the side wall.

[0146] The present application also provides a rail vehicle, comprising the rail vehicle body of the above embodiment.

[0147] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0148] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A front end module of a rail vehicle underframe, characterized in that: include: An end component beam and a connecting beam, wherein the end component beam and the connecting beam are arranged opposite to each other in the longitudinal direction; Two side beams arranged opposite to each other in the transverse direction, any one of the side beams being respectively fixed to the end component beam and the connecting beam; A bolster beam, fixedly arranged in the transverse direction between the two side beams; A traction beam, the two ends of which along the longitudinal direction are respectively fixed to the end component beam and the bolster beam; A connecting beam, one end of which is connected to the bolster along the longitudinal direction, and the other end of which is fixed to each of the side beams; A coupler mounting seat is longitudinally arranged at the front end of the end component beam, and the end component beam, the connecting beam, the side beam, the traction beam, the connecting beam and the coupler mounting seat are fixed by welding.

2. The rail vehicle underframe front end module according to claim 1, characterized in that: The coupler mounting seat comprises: The upper cover plate and the lower cover plate are arranged opposite to each other in the vertical direction; Two vertical plates arranged opposite to each other in the transverse direction, any of the vertical plates being located between the upper cover plate and the lower cover plate in the vertical direction, and having two ends respectively welded and fixed to the upper cover plate and the lower cover plate; a front follower plate seat and a rear follower plate seat are respectively provided on any of the vertical plates; A middle partition plate is located vertically between the upper cover plate and the lower cover plate, and the middle partition plate is fixed to the vertical plate by welding; The upper cover plate, the lower cover plate, the vertical plate and the middle partition plate are respectively welded and fixed to the end component beams.

3. The rail vehicle underframe front end module according to claim 2, characterized in that: The coupler mounting seat also includes: A plurality of reinforcing plates are arranged longitudinally, one end of any reinforcing plate is fixed to the vertical plate, and the other end is fixed to the middle partition plate.

4. The rail vehicle underframe front end module according to claim 3, characterized in that: Any of the vertical boards comprises a vertical board body and an inclined board portion, wherein the vertical board body and the end portion are fixed to form a beam; the inclined board portion is located at the longitudinal front end of the vertical board, and the distance between the two inclined board portions increases forward along the longitudinal direction; the top wall of the inclined portion is lower than the top wall of the vertical board body, and the top wall of the inclined portion and the longitudinal end wall of the vertical board body form a lap platform; The coupler mounting seat also includes a partition plate fixedly arranged on the overlapping platform, the partition plate is a U-shaped structure, and the two side walls of the U-shaped structure respectively have transverse outer edge portions.

5. The rail vehicle underframe front end module according to claim 2, characterized in that: The middle partition includes a middle inner partition and a middle outer partition. The middle inner partition is located on the inner side of the vertical plate in the transverse direction, and the middle outer partition is located on the outer side of the vertical plate in the transverse direction. The middle inner partition and the middle outer partition are in the same plane.

6. The rail vehicle underframe front end module according to claim 2, characterized in that: The end component beam comprises: A front end plate and a rear end plate are arranged opposite to each other in the longitudinal direction, wherein the front end plate is located close to the side of the coupler mounting seat; The upper cover plate of the component beam and the lower cover plate of the component beam are arranged opposite to each other in the vertical direction. The upper cover plate of the component beam and the lower cover plate of the component beam are both located between the front end plate and the rear end plate, and are respectively welded and fixed to the front end plate and the rear end plate.

7. The rail vehicle underframe front end module according to claim 6, characterized in that: The front end plate and the rear end plate are respectively provided with clearance holes for the hook to pass through; The end component beam also includes a lower supplementary plate, which is located between the front end plate and the rear end plate and is in the same plane as the lower cover plate.

8. The rail vehicle underframe front end module according to claim 7, characterized in that: The end component beam also includes: Two vertical support plates are respectively located at the two lateral ends of the lower supplementary plate, and any of the vertical support plates is arranged coplanar with the vertical plate in the longitudinal direction; the vertical support plates are respectively welded and fixed to the front end plate, the rear end plate, the upper cover plate, the lower cover plate and the lower supplementary plate.

9. The rail vehicle underframe front end module according to claim 1, characterized in that: The traction beam comprises: The traction beam upper cover plate and the traction beam lower cover plate are arranged opposite to each other in the vertical direction; A group of traction beam upright plates are arranged opposite to each other in the transverse direction, and any of the traction beam upright plates is fixedly arranged in the vertical direction between the traction beam upper cover plate and the traction beam lower cover plate.

10. The rail vehicle underframe front end module according to claim 9, characterized in that: A plurality of weight-reducing holes are longitudinally distributed on the lower cover plate of the traction beam.

11. The rail vehicle underframe front end module according to claim 10, characterized in that: The traction beam further comprises: A plurality of partitions are arranged longitudinally, and any of the partitions are welded and fixed to the lower cover plate and the traction beam vertical plate; at least one of the partitions is located between adjacent weight-reducing holes.

12. The rail vehicle underframe front end module according to claim 1, characterized in that: The bolster comprises: The upper cover plate of the bolster and the lower cover plate of the bolster are arranged opposite to each other in the vertical direction; Two bolster uprights are arranged opposite to each other in the longitudinal direction, and any one of the bolster uprights is fixedly arranged between the bolster upper cover plate and the bolster lower cover plate in the vertical direction, and extends into the cavity of the side beam in the transverse direction and is welded and fixed to the side beam.

13. The rail vehicle underframe front end module according to claim 12, characterized in that: The bolster also includes: Two support uprights arranged opposite to each other in the transverse direction, the longitudinal ends of any of the support uprights are respectively welded and fixed to the corresponding bolster uprights, and the vertical ends of any of the support uprights are respectively welded and fixed to the bolster upper cover plate and the bolster lower cover plate; The middle cover plate of the bolster is located between the two supporting upright plates in the transverse direction, and the transverse ends of the middle cover plate of the bolster are respectively welded and fixed to the corresponding supporting upright plates; There are two lower cover plates of the bolster, which are respectively located on the two lateral sides of the middle cover plate of the bolster, and any one of the lower cover plates of the bolster is welded and fixed to the supporting vertical plate and the middle cover plate of the bolster.

14. The rail vehicle underframe front end module according to claim 12, characterized in that: The bolster also includes: A transverse stopper located on the lower cover plate of the bolster; A plurality of transverse stop support plates are located on the pillow beam vertical plate and are arranged opposite to the transverse stop in the transverse direction.

15. The rail vehicle underframe front end module according to claim 14, characterized in that: The bolster also includes: The wire passing sleeve passes through the two supporting vertical plates in the longitudinal direction to provide a space for the cable to pass through.

16. The rail vehicle underframe front end module according to claim 1, characterized in that: The connecting beam comprises: The connecting beam upper cover plate and the connecting beam lower cover plate are arranged opposite to each other in the vertical direction; The two connection beam upright plates are arranged opposite to each other in the transverse direction, and any one of the connection beam upright plates is respectively welded and fixed to the connection beam upper cover plate and the connection beam lower cover plate.

17. The rail vehicle underframe front end module according to claim 16, characterized in that: The connecting beam further comprises: The end oblique beam is located at the rear end of the connecting beam upper cover plate in the longitudinal direction and is welded and fixed between the two connecting beam vertical plates in the transverse direction; the end oblique beam has an inclined portion inclined downward from front to rear in the longitudinal direction, and an end reinforcement vertical plate is provided between the end oblique beam and the connecting beam upper cover plate, and the end oblique beam, the connecting beam upper cover plate and the end reinforcement vertical plate are welded and fixed.

18. The rail vehicle underframe front end module according to claim 1, characterized in that: It also includes a bogie connecting seat, which is located on the bolster and the side beam and fixed by welding; The bogie connecting seat comprises a U-shaped seat and a connecting seat upper cover plate, the opening of the U-shaped seat is arranged outward in the transverse direction, and the connecting seat upper cover plate is welded and fixed to the U-shaped cavity wall of the U-shaped seat.

19. The rail vehicle underframe front end module according to claim 1, characterized in that: Also includes: The corrugated plate is fixedly arranged between the end component beam and the connecting beam in the longitudinal direction, and is fixedly arranged between the two side beams in the transverse direction.

20. The rail vehicle underframe front end module according to claim 1, characterized in that: Also included are a plurality of reinforcing beams extending in the transverse direction; At least two reinforcing cross beams arranged in the longitudinal direction are provided between the side beam and the traction beam and between the side beam and the connecting beam.

21. A rail vehicle underframe, characterized in that: It comprises an underframe body and a rail vehicle underframe front end module according to any one of claims 1 to 20; The rail vehicle underframe front end module is located at the longitudinal front end of the underframe body and is fixed to the bottom surface of the underframe body.

22. A rail vehicle body, characterized in that: comprising end walls, side walls and the rail vehicle underframe of claim 21; The front end module of the rail vehicle underframe is respectively welded and fixed to the end wall and the side wall.

23. A rail vehicle, characterized in that: Comprising the rail vehicle body as described in claim 22.

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